Carrier Heat Pump 50RTP03 20 User Manual

AQUAZONE™  
50RTP03-20  
Rooftop Water Source Heat Pumps  
with PURON® Refrigerant (R-410A)  
Installation, Start-Up, and  
Service Instructions  
Page  
CONTENTS  
Units with Aquazone™ Complete C Control . . . . . 40  
Units with Aquazone Deluxe D Control . . . . . . . . . . 40  
Units with WSHP Open Protocol . . . . . . . . . . . . . . . . 40  
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-45  
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43  
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43  
Aquazone Deluxe D Control LED Indicators . . . . . 45  
WSHP Open Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 45  
Page  
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2  
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34  
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2  
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
• STORAGE  
• PROTECTION  
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45,46  
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45  
Water Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45  
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 45  
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45  
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 45  
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45  
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45  
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 46  
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 46  
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 46  
Replacing the WSHP Open Controller’s  
• INSPECT UNIT  
Step 3 — Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 8  
Step 5 — Install Condensate Drain . . . . . . . . . . . . . . . 8  
Step 6 — Make Piping Connections . . . . . . . . . . . . . . 8  
WATER LOOP APPLICATIONS  
• GROUND-WATER APPLICATIONS  
• GROUND-LOOP APPLICATIONS  
Step 7 — Connect Electrical Wiring . . . . . . . . . . . . . . 9  
• SUPPLY VOLTAGE  
• 208-VOLT OPERATION  
• BLOWER SELECTION  
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46  
Step 8 — Connect Low Voltage Wiring . . . . . . . . . . 34  
• THERMOSTAT CONNECTIONS  
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 47-49  
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47  
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47  
APPENDIX A — WSHP OPEN SCREEN  
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . 50-55  
WATER FREEZE PROTECTION  
• AIR COIL FREEZE PROTECTION  
• ACCESSORY CONNECTIONS  
WATER SOLENOID VALVES  
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . CL-1, CL-2  
PRE-START-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35  
System Checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35  
IMPORTANT: Read the entire instruction manual before  
starting installation.  
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .35,36  
Complete C Control Jumper Settings. . . . . . . . . . . 35  
Complete C Control DIP Switches. . . . . . . . . . . . . . 35  
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 35  
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 35  
Deluxe D Control Accessory Relay  
Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36  
Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 36  
Outside-Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 36  
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-40  
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37  
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 37  
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 37  
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 37  
Unit Start-Up with WHSP Open Controls . . . . . . . . 38  
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39  
System Claening and Flushing. . . . . . . . . . . . . . . . . . 39  
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39  
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 40  
Ground Coupled, Closed Loop and Plateframe  
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 40  
SAFETY CONSIDERATIONS  
Installation and servicing of air-conditioning equipment can  
be hazardous due to system pressure and electrical compo-  
nents. Only trained and qualified service personnel should  
install, repair, or service air-conditioning equipment.  
Untrained personnel can perform basic maintenance func-  
tions of cleaning coils and filters and replacing filters. All other  
operations should be performed by trained service personnel.  
When working on air-conditioning equipment, observe precau-  
tions in the literature, tags and labels attached to the unit, and  
other safety precautions that may apply.  
Improper installation, adjustment, alteration, service, main-  
tenance, or use can cause explosion, fire, electrical shock or  
other conditions which may cause personal injury or property  
damage. Consult a qualified installer, service agency, or your  
distributor or branch for information or assistance. The  
qualified installer or agency must use factory-authorized kits or  
accessories when modifying this product. Refer to the individ-  
ual instructions packaged with the kits or accessories when  
installing.  
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-43  
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40  
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.  
Catalog No. 04-53500070-01 Printed in U.S.A. Form 50RTP-1SI Pg 1 7-10 Replaces: New  
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5. Inspect all electrical connections. Be sure connections are  
clean and tight at the terminals.  
6. Compressors are internally spring-mounted. Compressors  
equipped with external spring vibration isolators must  
have bolts loosened and shipping clamps removed.  
7. Remove any blower support cardboard from inlet of the  
blower if present.  
8. Locate and verify any accessory kit located in compressor  
section.  
CAUTION  
DO NOT store or install units in corrosive environments or  
in locations subject to temperature or humidity extremes  
(e.g., attics, garages, rooftops, etc.). Corrosive conditions  
and high temperature or humidity can significantly reduce  
performance, reliability, and service life. Always move  
units in an upright position. Tilting units on their sides may  
cause equipment damage.  
9. Remove any access panel screws that may be difficult to  
remove once unit is installed.  
INSPECT UNIT — To prepare the unit for installation, com-  
plete the procedures listed below:  
1. Compare the electrical data on the unit nameplate with  
ordering and shipping information to verify that the  
correct unit has been shipped.  
Step 3 — Locate Unit — The following guidelines  
should be considered when choosing a location for WSHP. Re-  
fer to Fig. 1-3 for unit dimensional data. See Fig. 4 for accesso-  
ry roof curb dimensional data.  
2. Verify that the unit is the correct model for the entering  
water temperature of the job.  
• Provide sufficient space for water, electrical and duct  
connections  
3. Do not remove the packaging until the unit is ready for  
installation.  
• Locate unit in an area that allows for easy access and  
removal of filter and access panels  
4. Verify that the refrigerant tubing is free of kinks or dents,  
and that it does not touch other unit components.  
• Allow enough space for service personnel to perform  
maintenance  
Table 1 — Physical Data — Aquazone™ 50RTP03-20 Units  
UNIT 50RTP  
Compressor (qty)  
Factory Charge R-410A (oz)  
Blower Motor  
03  
04  
05  
Scroll (1)  
06  
08  
10  
12  
Scroll (2)  
130  
14  
20  
64  
84  
120  
132  
108  
120  
192  
300  
Motor Quantity  
Standard Motor (hp)  
Large Motor (hp)  
1
2
3
1
N/A  
1
1.5  
1
1.5  
1.5  
2
3
5
3
5
3
5
5
7.5  
Blower(s)  
Number of Blowers  
Blower Wheel Size (dia x w)  
V-belt size, Std drive  
Water Connection Size  
IPT (in.)  
1
AX33  
11/4  
2
10 x 6  
2 x 12  
15 x 11  
15 x 15  
BX46  
15 x 11  
A29  
0.61  
A30  
0.77  
A32  
1
B40  
BX42  
B39  
3.83  
BX40  
3
/
11/2  
2
4
Coax Volume  
Volume (US Gallons)  
Condensate Connection Size  
FPT (in.)  
1.11  
1.30  
1.69  
1
2.29  
2.68  
4.77  
Air Coil Data  
Air Coil Total Face Area (sq ft)  
5
7
9.33  
10.5  
20  
8...16 x 20,  
2...20 x 20  
Filter, Standard, Qty...Size (in.)  
4...16 x 20  
6...16 x 20  
Operating Weight (lb)  
Shipping Weight (lb)  
Corner Weights (lb)  
Front-Left  
Front-Right  
Rear-Left  
735  
750  
785  
800  
835  
850  
880  
900  
1080  
1100  
1125  
1150  
1175  
1200  
1770  
1800  
1960  
2000  
184  
259  
108.5  
183.5  
196  
276  
117  
196  
208.5  
293.5  
124.5  
208.5  
224  
298  
134  
224  
292  
380  
193  
215  
303.5  
395.5  
202  
320  
406  
212.5  
236.5  
479  
623  
315  
353  
530  
690  
350  
390  
Rear-Right  
224  
Curb, Installed (lb)  
83  
94  
128  
IPT — Iron (National) Pipe Thread  
3
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A50-8267.eps  
4
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A50-8268.eps  
5
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A50-8269.eps  
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7
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WATER LOOP APPLICATIONS — Water loop applications  
usually include a number of units plumbed to a common pip-  
ing system. Maintenance to any of these units can introduce air  
into the piping system. Therefore, air elimination equipment  
comprises a major portion of the mechanical room plumbing.  
Step 4 — Mount the Unit — For proper operation,  
units must be mounted on a roof curb as shown in Fig. 5. Roof  
curn dimensional data is shown in Fig. 4. Follow these guide-  
lines when installing the roof curb:  
1. Set unit on curb.  
The flow rate is usually set between 2.25 and 3 gpm per ton  
of cooling capacity. For proper maintenance and servicing,  
pressure-temperature (P/T) ports are necessary for temperature  
and flow verification.  
In addition to complying with any applicable codes, consid-  
er the following for system piping:  
2. Align unit so that its return and supply air direction match  
the return and supply air opening in the roof curb frame.  
3. Run both the return and supply loop piping, as well as the  
electrical supply line, through the pipe chase provided in  
the curb.  
• Piping systems utilizing water temperatures below  
1
50 F require / -in. closed cell insulation on all piping  
50 RTP  
UNIT  
2
surfaces to eliminate condensation.  
• All plastic to metal threaded fittings should be avoided  
due to the potential to leak. Use a flange fitted substitute.  
• Teflon tape thread sealant is recommended to minimize  
internal fouling of the heat exchanger.  
• Use backup wrench. Do not overtighten connections.  
• Route piping to avoid service access areas to unit.  
• The piping system should be flushed prior to operation to  
remove dirt and foreign materials from the system.  
GROUND-WATER APPLICATIONS — In addition to com-  
plying with any applicable codes, consider the following for  
system piping:  
FLASHING  
• Install shut-off valves for servicing.  
• Install pressure-temperature plugs to measure flow and  
temperature.  
GASKET  
ROOF  
• Boiler drains and other valves should be connected using  
a “T” connector to allow acid flushing for the heat  
exchanger.  
• Do not overtighten connections.  
• Route piping to avoid service access areas to unit.  
• Use PVC SCH80 or copper piping material.  
CURB  
NOTE: PVC SCH40 should not be used due to system high  
pressure and temperature extremes.  
Fig. 5 — 50RTP Curb Installation  
Water Supply and Quantity — Check water supply. Water  
supply should be plentiful and of good quality. See Table 2 for  
water quality guidelines.  
Step 5 — Install Condensate Drain  
1. Install a condensate trap at each unit with the top of  
the trap positioned below the unit condensate drain  
connection.  
2. Design the length of the trap (water seal) based on the  
amount of positive or negative pressure on the drain pan.  
As a rule, 1 in. of trap is required for each inch of nega-  
tive pressure on the unit.  
IMPORTANT: Failure to comply with the above required  
water quality and quantity limitations and the closed-  
system application design requirements may cause damage  
to the tube-in-tube heat exchanger that is not the responsi-  
bility of the manufacturer.  
Note that condensate is allowed to drain onto the roof.  
In all applications, the quality of the water circulated  
through the heat exchanger must fall within the ranges listed in  
the Water Quality Guidelines table. Consult a local water treat-  
ment firm, independent testing facility, or local water authority  
for specific recommendations to maintain water quality within  
the published limits.  
Step 6 — Make Piping Connections — Depend-  
ing on the application, there are 3 types of WSHP piping sys-  
tems to choose from: water loop, ground-water and ground  
loop. Refer to Piping Section of Carrier System Design Manual  
for additional information.  
GROUND-LOOP APPLICATIONS — Temperatures between  
25 to 110 F and a cooling capacity of 2.25 to 3 gpm of flow per  
ton is recommended. In addition to complying with any appli-  
cable codes, consider the following for system piping:  
• Piping materials should be limited to only polyethylene  
fusion in the buried sections of the loop.  
All WSHP units use low temperature soldered female pipe  
thread fittings for water connections to prevent annealing and  
out-of-round leak problems which are typically associated with  
high temperature brazed connections. Refer to Table 1 for con-  
nection sizes. When making piping connections, consider the  
following:  
• Use a backup wrench when making screw connections to  
• Galvanized or steel fittings should not be used at any  
time due to corrosion.  
unit to prevent internal damage to piping.  
• Insulation may be required on piping to avoid condensa-  
tion in the case where fluid in loop piping operates at  
temperatures below dew point of adjacent air.  
• Piping systems that contain steel pipes or fittings may  
be subject to galvanic corrosion. Dielectric fittings may  
be used to isolate the steel parts of the system to avoid  
galvanic corrosion.  
• All plastic to metal threaded fittings should be avoided  
due to the potential to leak. Use a flange fitted substitute.  
• Do not overtighten connections.  
• Route piping to avoid service access areas to unit.  
• Pressure-temperature (P/T) plugs should be used to mea-  
sure flow of pressure drop.  
8
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Table 2 — Water Quality Guidelines  
HX  
MATERIAL*  
CONDITION  
CLOSED RECIRCULATING†  
OPEN LOOP AND RECIRCULATING WELL**  
Scaling Potential — Primary Measurement  
Above the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below.  
pH/Calcium  
Hardness Method  
All  
N/A  
pH < 7.5 and Ca Hardness, <100 ppm  
Index Limits for Probable Scaling Situations (Operation outside these limits is not recommended.)  
Scaling indexes should be calculated at 150 F for direct use and HWG applications, and at 90 F for indirect HX use. A monitoring plan should be  
implemented.  
Ryznar Stability Index  
6.0 - 7.5  
If >7.5 minimize steel pipe use.  
–0.5 to +0.5  
All  
N/A  
Langelier Saturation Index  
All  
N/A  
If <–0.5 minimize steel pipe use.  
Based upon 150 F HWG and direct well, 85 F indirect well HX.  
Iron Fouling  
Iron Fe2+ (Ferrous)  
<0.2 ppm (Ferrous)  
If Fe2+ (ferrous) >0.2 ppm with pH 6 - 8, O2<5 ppm check for iron bacteria.  
<0.5 ppm of Oxygen  
All  
All  
N/A  
N/A  
(Bacterial Iron Potential)  
Iron Fouling  
Above this level deposition will occur.  
Corrosion Prevention††  
pH  
6 - 8.5  
Minimize steel pipe below 7 and no open tanks with pH <8.  
<0.5 ppm  
6 - 8.5  
All  
All  
Monitor/treat as needed.  
Hydrogen Sulfide (H2S)  
At H2S>0.2 ppm, avoid use of copper and cupronickel piping or HXs.  
Rotten egg smell appears at 0.5 ppm level.  
Copper alloy (bronze or brass) cast components are okay to <0.5 ppm.  
N/A  
N/A  
Ammonia Ion as Hydroxide,  
Chloride, Nitrate and Sulfate  
Compounds  
<0.5 ppm  
All  
Maximum Chloride Levels  
Maximum allowable at maximum water temperature.  
50 F (10 C)  
75 F (24 C)  
100 F (38 C)  
Copper  
N/A  
<20 ppm  
<150 ppm  
<400 ppm  
<1000 ppm  
>1000 ppm  
NR  
NR  
CuproNickel  
N/A  
N/A  
N/A  
N/A  
NR  
NR  
304 SS  
<250 ppm  
<550 ppm  
>550 ppm  
<150 ppm  
<375 ppm  
>375 ppm  
316 SS  
Titanium  
Erosion and Clogging  
Particulate Size and Erosion  
<10 ppm of particles and a max-  
imum velocity of 6 fps. Filtered  
for maximum  
<10 ppm (<1 ppm “sand free” for reinjection) of particles and a maximum velocity of 6  
fps. Filtered for maximum 800 micron size. Any particulate that is not removed can  
potentially clog components.  
All  
800 micron size.  
LEGEND  
Hot Water Generator  
Heat Exchanger  
††If the concentration of these corrosives exceeds the maximum allowable level,  
then the potential for serious corrosion problems exists.  
HWG  
HX  
Sulfides in the water quickly oxidize when exposed to air, requiring that no agita-  
tion occur as the sample is taken. Unless tested immediately at the site, the sam-  
ple will require stabilization with a few drops of one Molar zinc acetate solution,  
allowing accurate sulfide determination up to 24 hours after sampling. A low pH  
and high alkalinity cause system problems, even when both values are within  
ranges shown. The term pH refers to the acidity, basicity, or neutrality of the water  
supply. Below 7.0, the water is considered to be acidic. Above 7.0, water is con-  
sidered to be basic. Neutral water contains a pH of 7.0.  
N/A  
Design Limits Not Applicable Considering Recirculating  
Potable Water  
NR  
SS  
Application Not Recommended  
Stainless Steel  
*Heat exchanger materials considered are copper, cupronickel, 304 SS (stainless  
steel), 316 SS, titanium.  
†Closed recirculating system is identified by a closed pressurized piping system.  
**Recirculating open wells should observe the open recirculating design  
considerations.  
NOTE: To convert ppm to grains per gallon, divide by 17. Hardness in mg/l is equiv-  
alent to ppm.  
Refer to unit wiring diagrams in Fig. 6-16 for a schematic of  
the field connections which must be made by the installing (or  
electrical) contractor.  
Consult the unit wiring diagram located on the inside of the  
compressor access panel to ensure proper electrical hookup.  
The installing (or electrical) contractor must make the field  
connections when using field-supplied disconnect.  
Step 7 — Connect Electrical Wiring  
WARNING  
Electrical shock can cause personal injury and death. Shut  
off all power to this equipment during installation. There  
may be more than one disconnect switch. Tag all discon-  
nect locations to alert others not to restore power until work  
is completed.  
Operating voltage must be the same voltage and phase as  
shown in electrical data shown in Table 3.  
Make all final electrical connections with a length of flexi-  
ble conduit to minimize vibration and sound transmission to  
the building.  
SUPPLY VOLTAGE — Operating voltage to unit must be  
within voltage range indicated on unit nameplate.  
On 3-phase units, voltages under load between phases must  
be balanced within 2%. Use the following formula to deter-  
mine the percentage voltage imbalance:  
CAUTION  
Use only copper conductors for field-installed electrical  
wiring. Unit terminals are not designed to accept other  
types of conductors.  
All field installed wiring, including the electrical ground,  
MUST comply with the National Electrical Code (NEC) as  
well as applicable local codes. In addition, all field wiring must  
conform to the Class II temperature limitations described in the  
NEC.  
% Voltage Imbalance  
max voltage deviation from average voltage  
= 100 x  
average voltage  
9
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Example: Supply voltage is 460-3-60.  
This amount of phase imbalance is satisfactory as it is  
below the maximum allowable 2%.  
Operation on improper line voltage or excessive phase  
imbalance constitutes abuse and may cause damage to electri-  
cal components.  
AB = 452 volts  
BC = 464 volts  
AC = 455 volts  
452 + 464 + 455  
3
Average Voltage =  
NOTE: If more than 2% voltage imbalance is present, contact  
local electric utility.  
1371  
3
208-VOLT OPERATION — All 208-230 volt units are factory  
wired for 208 volts. The transformers may be switched to  
230-volt operation (as illustrated on the wiring diagram) by  
switching the red (208 volt) wire with the orange (230 volt)  
wire at the L1 terminal.  
=
=
457  
Determine maximum deviation from average voltage:  
BLOWER SELECTION — All water source heat pumps are  
factory set with the appropriate motor and sheave combination  
to achieve the desired airflow performance. Performance is  
selected by matching the desired performance with the appro-  
priate region in Tables 4-12.  
NOTE: Factory-installed sheaves are field adjustable. Refer to  
Tables 4-12 for adjustment points.  
(AB) 457 – 452 = 5 v  
(BC) 464 – 457 = 7 v  
(AC) 457 – 455 = 2 v  
Maximum deviation is 7 v.  
Determine percent voltage imbalance.  
7
% Voltage Imbalance = 100 x  
457  
= 1.53%  
Table 3 — Electrical Data  
COMPRESSOR  
MOTOR  
FLA  
TOTAL  
UNIT  
FLA  
MAX  
MCA FUSE/  
HACR  
50RTP  
UNIT SIZE  
VOLTAGE  
CODE  
VOLTAGE  
(V-Ph-Hz)  
MIN/MAX  
VOLTAGE  
BLOWER  
OPTION  
Qty  
RLA  
LRA  
Qty  
Hp  
5
6
1
208-3-60  
460-3-60  
575-3-60  
197/254  
414/506  
518/633  
A,B,C  
A,B,C  
A,B,C  
A,B,C  
D,E  
A,B,C  
D,E  
A,B,C  
D,E  
A,B,C  
D,E  
A,B,C  
D,E  
A,B,C  
D,E  
A,B,C  
E
A,B,C  
E
A,B,C  
E
A,B,C  
E
A,B,C  
E
A,B,C  
E
A,B,C  
E
A,B,C  
E
A,B,C  
E
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
10.4  
5.8  
3.8  
13.7  
13.7  
6.2  
6.2  
4.8  
4.8  
15.6  
15.6  
7.8  
7.8  
5.8  
73.0  
38.0  
36.5  
83.1  
83.1  
41.0  
41.0  
33.0  
33.0  
110.0  
110.0  
52.0  
52.0  
38.9  
38.9  
155.0  
155.0  
75.0  
75.0  
54.0  
54.0  
83.1  
83.1  
41.0  
41.0  
33.0  
33.0  
110.0  
110.0  
52.0  
52.0  
38.9  
38.9  
155.0  
155.0  
75.0  
75.0  
54.0  
54.0  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4.0  
2.0  
1.4  
4.0  
5.0  
2.0  
2.4  
1.4  
1.9  
4.0  
5.0  
2.0  
2.4  
1.4  
1.9  
5.0  
6.2  
2.4  
3.1  
1.9  
2.3  
6.2  
9.2  
3.1  
4.3  
2.3  
3.4  
9.2  
14.1  
4.3  
7.0  
3.4  
5.2  
9.2  
14.1  
4.3  
7.0  
3.4  
5.2  
1.0  
1.0  
1.0  
1.0  
1.5  
1.0  
1.5  
1.0  
1.5  
1.0  
1.5  
1.0  
1.5  
1.0  
1.5  
1.5  
2.0  
1.5  
2.0  
1.5  
2.0  
2.0  
3.0  
2.0  
3.0  
2.0  
3.0  
3.0  
5.0  
3.0  
5.0  
3.0  
5.0  
3.0  
5.0  
3.0  
5.0  
3.0  
5.0  
14.4  
7.8  
5.2  
17.7  
18.7  
8.2  
8.6  
6.2  
6.7  
19.6  
20.6  
9.8  
10.2  
7.2  
17.0  
9.3  
6.2  
21.1  
22.1  
9.8  
10.1  
7.4  
25  
15  
15  
35  
35  
15  
15  
15  
15  
40  
40  
15  
15  
15  
15  
50  
50  
20  
20  
15  
15  
50  
50  
20  
20  
15  
15  
60  
60  
25  
30  
20  
20  
80  
80  
35  
35  
25  
25  
03  
04  
5
6
1
5
6
1
5
6
1
5
6
1
5
6
1
5
6
1
208-3-60  
460-3-60  
575-3-60  
208-3-60  
460-3-60  
575-3-60  
208-3-60  
460-3-60  
575-3-60  
208-3-60  
460-3-60  
575-3-60  
208-3-60  
460-3-60  
575-3-60  
208-3-60  
460-3-60  
575-3-60  
197/254  
414/506  
518/633  
197/254  
414/506  
518/633  
197/254  
414/506  
518/633  
197/254  
414/506  
518/633  
197/254  
414/506  
518/633  
197/254  
414/506  
518/633  
7.9  
23.5  
24.5  
11.8  
12.2  
8.7  
05  
06  
08  
10  
12  
5.8  
7.7  
9.2  
20.5  
20.5  
9.6  
9.6  
7.6  
25.5  
26.7  
12.0  
12.7  
9.5  
30.6  
31.8  
14.4  
15.1  
11.4  
11.8  
37.0  
40.0  
17.0  
18.3  
13.1  
14.2  
44.3  
49.2  
21.9  
24.6  
16.5  
18.3  
55.3  
60.2  
25.9  
28.6  
20.5  
22.3  
7.6  
9.9  
13.7  
13.7  
6.2  
6.2  
4.8  
33.6  
36.6  
15.5  
16.7  
11.9  
13.0  
40.4  
45.3  
19.9  
22.6  
15.0  
16.8  
50.2  
55.1  
23.5  
26.2  
18.6  
20.4  
4.8  
15.6  
15.6  
7.8  
7.8  
5.8  
5.8  
A,B,C  
D,E  
A,B,C  
D,E  
A,B,C  
D,E  
20.5  
20.5  
9.6  
9.6  
7.6  
7.6  
10  
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Table 3 — Electrical Data (cont)  
COMPRESSOR  
MOTOR  
FLA  
TOTAL  
UNIT  
FLA  
MAX  
MCA FUSE/  
HACR  
50RTP  
UNIT SIZE  
VOLTAGE  
CODE  
VOLTAGE  
(V-Ph-Hz)  
MIN/MAX  
VOLTAGE  
BLOWER  
OPTION  
Qty  
RLA  
LRA  
Qty  
Hp  
A,B,C  
D,E  
A,B,C  
D,E  
A,B,C  
D,E  
A,B,C  
D,E  
A,B,C  
D,E  
A,B,C  
D,E  
2
2
2
2
2
2
2
2
2
2
2
2
23.2  
23.2  
11.2  
11.2  
7.9  
164.0  
164.0  
75.0  
75.0  
54.0  
1
1
1
1
1
1
1
1
1
1
1
1
9.2  
14.1  
4.3  
7.0  
3.4  
3.0  
5.0  
3.0  
5.0  
3.0  
5.0  
5.0  
7.5  
5.0  
7.5  
5.0  
7.5  
55.6  
60.5  
26.7  
29.4  
19.2  
21.0  
74.3  
81.9  
40.4  
43.4  
29.6  
32.1  
61.4  
66.3  
29.5  
32.2  
21.2  
23.0  
81.8  
89.4  
44.6  
47.6  
32.6  
35.1  
80  
80  
40  
40  
30  
5
6
1
5
6
1
208-3-60  
460-3-60  
575-3-60  
208-3-60  
460-3-60  
575-3-60  
197/254  
14  
20  
414/506  
518/633  
197/254  
414/506  
518/633  
7.9  
54.0  
5.2  
30  
30.1  
30.1  
16.7  
16.7  
12.2  
12.2  
225.0  
225.0  
114.0  
114.0  
80.0  
14.1  
21.7  
7.0  
10.0  
5.2  
110  
110  
60  
60  
45  
80.0  
7.7  
45  
LEGEND  
FLA — Full Load Amps  
HACR — Heating, Air Conditioning, and Refrigeration  
LRA — Locked Rotor Amps  
MCA — Minimum Circuit Amps  
RLA — Rated Load Amps  
Table 4 — 50RTP03 Blower Performance Data  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
1.2  
1.3  
1.4  
1.5  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
0.10 0.13 0.16 0.17 0.19 0.22 0.24 0.26 0.28 0.30 0.33 0.35 0.37 0.40 0.44 0.47  
B
B
B
A
A
A
A
A
A
A
C
C
C
C
C
C
900  
552  
4.5  
615  
3.5  
665  
3.0  
715  
4.5  
765  
4.0  
820  
3.5  
875  
2.5  
925  
2.0  
965 1010 1055 1100 1140 1180 1220 1260  
1.5 1.0 3.0 2.5 2.0 2.0 1.5 1.0  
0.16 0.17 0.19 0.21 0.23 0.25 0.28 0.30 0.33 0.36 0.40 0.43 0.46 0.49 0.52 0.55  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
B
615  
3.5  
B
655  
3.0  
A
695  
5.0  
A
740  
4.0  
A
790  
3.5  
A
845  
3.0  
A
900  
2.0  
A
940  
1.5  
A
A
C
C
C
C
C
C
1000  
1100  
1200  
1300  
1400  
1500  
985 1030 1070 1115 1150 1190 1230 1265  
1.0 0.5 3.0 2.5 2.0 1.5 1.5 1.0  
0.22 0.23 0.25 0.29 0.32 0.34 0.35 0.36 0.38 0.41 0.44 0.48 0.50 0.53 0.56 0.59  
B
685  
2.5  
0.26 0.27 0.30 0.33 0.36 0.39 0.42 0.44 0.48 0.51 0.54 0.57 0.60 0.62 0.65 0.69  
A
710  
5.0  
0.30 0.33 0.36 0.40 0.42 0.44 0.46 0.50 0.55 0.61 0.65 0.68 0.71 0.74 0.76 0.79  
A
750  
4.0  
0.40 0.42 0.44 0.47 0.50 0.53 0.56 0.60 0.64 0.67 0.70 0.72 0.75 0.79 0.84 0.88  
A
820  
3.0  
A
725  
5.0  
A
765  
4.0  
A
810  
3.5  
A
855  
2.5  
A
895  
2.5  
A
940  
1.5  
A
A
C
C
C
C
C
C
C
985 1025 1065 1105 1145 1180 1215 1250 1285  
1.0 0.5 3.0 2.5 2.0 1.5 1.5 1.0 0.5  
A
740  
4.5  
A
785  
3.5  
A
830  
3.0  
A
880  
2.5  
A
920  
2.0  
A
A
C
C
C
C
C
C
C
C
965 1005 1045 1085 1125 1160 1195 1230 1265 1300  
1.0 0.5 3.5 3.0 2.5 2.0 1.5 1.0 1.0 0.5  
A
790  
3.5  
A
830  
3.0  
A
870  
2.5  
A
910  
2.0  
A
950  
1.5  
A
A
C
C
C
C
C
C
C
C
990 1030 1065 1105 1140 1175 1210 1245 1280 1315  
1.0 0.5 3.0 2.5 2.0 1.5 1.5 1.0 0.5 0.0  
A
850  
2.5  
A
875  
2.5  
A
915  
2.0  
A
950  
1.5  
A
A
C
C
C
C
C
C
C
C
C
990 1025 1065 1100 1135 1170 1205 1235 1270 1305 1335  
1.0  
0.5  
3.0  
2.5  
2.0  
2.0  
1.5  
1.0  
0.5  
0.5  
0.0  
0.45 0.47 0.50 0.52 0.55 0.59 0.64 0.69 0.74 0.77 0.80 0.83 0.86 0.90 0.93  
A
860  
2.5  
A
885  
2.0  
A
920  
2.0  
A
955  
1.5  
A
A
C
C
C
C
C
C
C
C
C
985 1020 1055 1090 1125 1160 1190 1225 1255 1290 1320  
1.0 0.5 3.0 2.5 2.0 2.0 1.5 1.0 1.0 0.5 0.0  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor  
11  
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Table 5 — 50RTP04 Blower Performance Data  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4  
0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
0.27 0.31 0.34 0.37 0.40 0.42 0.45 0.48 0.52 0.55 0.58 0.60 0.63 0.66 0.70 0.73  
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
1200  
1300  
1400  
1500  
1600  
1700  
1800  
1900  
2000  
750  
5.0  
800  
4.0  
845  
5.0  
890  
4.0  
935  
3.5  
975 1015 1055 1095 1135 1170 1205 1240 1275 1310 1345  
3.0 2.5 1.5 1.0 0.5 0.0 3.0 2.5 2.0 1.5 1.5  
0.35 0.38 0.41 0.43 0.45 0.47 0.53 0.59 0.64 0.67 0.70 0.72 0.75 0.78 0.80 0.83  
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
810  
4.0  
850  
4.5  
890  
4.0  
930  
3.5  
970 1010 1050 1090 1125 1160 1195 1230 1265 1300 1330 1365  
3.0 2.5 2.0 1.0 0.5 0.0 3.0 3.0 2.5 2.0 1.5 1.0  
0.43 0.46 0.49 0.52 0.55 0.58 0.62 0.66 0.68 0.71 0.74 0.77 0.82 0.86 0.91 0.96  
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
865  
4.5  
900  
4.0  
935  
3.5  
970 1010 1045 1085 1120 1155 1190 1220 1255 1290 1320 1355 1390  
3.0 2.5 2.0 1.5 0.5 0.0 3.5 3.0 2.5 2.0 1.5 1.0 1.0  
0.49 0.52 0.54 0.57 0.62 0.68 0.73 0.76 0.79 0.82 0.85 0.89 0.92 0.96 1.00 1.05  
A
A
A
A
A
A
A
A
C
C
C
C
C
C
E
E
910  
3.5  
945  
3.5  
975 1010 1045 1080 1115 1150 1180 1215 1250 1280 1310 1345 1375 1405  
3.0 2.5 2.0 1.5 1.0 0.0 3.5 3.0 2.5 2.0 2.0 1.5 1.0 0.5  
0.62 0.65 0.67 0.70 0.72 0.75 0.78 0.82 0.86 0.89 0.94 1.00 1.04 1.08 1.13 1.18  
A
A
A
A
A
A
A
C
C
C
C
E
E
E
E
E
960  
3.0  
985 1015 1050 1080 1115 1145 1175 1210 1240 1275 1305 1335 1365 1395 1425  
2.5 2.5 2.0 2.0 1.5 0.5 3.5 3.0 2.5 2.5 2.0 1.5 1.0 0.5 0.5  
0.74 0.77 0.80 0.83 0.85 0.88 0.90 0.93 0.95 1.00 1.06 1.11 1.17 1.22 1.27 1.31  
A
A
A
A
A
A
C
C
C
E
E
E
E
E
E
E
1000 1030 1060 1090 1115 1150 1180 1210 1240 1270 1300 1330 1360 1390 1420 1445  
2.5  
2.0  
1.5  
1.5  
1.0  
1.0  
3.5  
3.0  
3.0  
2.5  
2.0  
1.5  
1.0  
1.0  
0.5  
0.0  
0.83 0.87 0.90 0.94 0.98 1.02 1.06 1.09 1.14 1.18 1.23 1.28 1.32 1.36  
A
1050 1075 1100 1125 1155 1185 1215 1245 1275 1300 1330 1360 1385 1415  
2.0  
0.97 1.00 1.03 1.08 1.12 1.16 1.20 1.25 1.29 1.34 1.38 1.42  
A
1100 1120 1145 1175 1200 1225 1250 1280 1305 1335 1360 1385  
1.0  
1.13 1.17 1.20 1.24 1.28 1.32 1.36 1.40 1.44  
D
1145 1170 1190 1215 1235 1260 1290 1315 1340  
0.5 0.5 3.0 3.0 2.5 2.5 2.0 1.5 1.5  
A
A
A
A
E
E
E
E
E
E
E
E
E
1.5  
1.0  
0.5  
0.5  
3.5  
3.0  
2.5  
2.5  
2.0  
1.5  
1.0  
1.0  
0.5  
D
D
E
E
E
E
E
E
E
E
E
1.0  
0.5  
3.5  
3.0  
3.0  
2.5  
2.0  
2.0  
1.5  
1.0  
1.0  
Sheave/Motor  
rpm  
Turns Open  
D
E
E
E
E
E
E
E
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, D = Standard RPM/  
Large Motor, E = High RPM/Large Motor  
12  
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Table 6 — 50RTP05 Blower Performance Data  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4  
0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
0.5  
A
1.1  
1.2  
1.3  
1.4  
1.5  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
0.17 0.22 0.26 0.29 0.31 0.34 0.37 0.40 0.44 0.47  
0.53 0.56 0.60 0.63 0.65  
A
B
516  
5.0  
B
573  
4.5  
B
625  
3.5  
B
670  
2.5  
A
A
A
A
A
A
A
945  
0.5  
C
970  
3.0  
C
C
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
710  
4.5  
755  
4.0  
785  
3.5  
820  
3.0  
850  
2.0  
880  
1.5  
900  
1.5  
925  
1.0  
990 1010  
2.5 2.5  
0.20 0.24 0.28 0.32 0.35 0.38 0.41 0.45 0.48 0.52 0.55 0.58 0.62 0.65 0.68 0.70  
B
526  
5.0  
B
583  
4.5  
B
635  
3.5  
A
680  
5.0  
A
A
A
A
A
A
A
A
C
965  
3.0  
C
C
C
725  
4.5  
765  
3.5  
795  
3.0  
830  
2.5  
860  
2.0  
890  
1.5  
915  
1.0  
940  
0.5  
990 1010 1030  
2.5 2.5 2.0  
0.23 0.26 0.30 0.34 0.38 0.42 0.45 0.49 0.53 0.56 0.60 0.64 0.67 0.71 0.73 0.75  
B
536  
4.5  
B
589  
4.0  
B
640  
3.0  
A
685  
5.0  
A
A
A
A
A
A
A
A
C
C
C
C
730  
4.0  
770  
3.5  
805  
3.0  
840  
2.5  
875  
2.0  
900  
1.5  
930  
1.0  
955  
0.5  
980 1005 1025 1045  
3.0 2.5 2.0 2.0  
0.25 0.29 0.33 0.37 0.41 0.46 0.50 0.54 0.58 0.62 0.65 0.68 0.72 0.76 0.78 0.81  
B
547  
4.5  
B
599  
4.0  
B
650  
3.0  
A
695  
4.5  
A
A
A
A
A
A
A
C
C
C
C
C
740  
4.0  
780  
3.5  
815  
2.5  
855  
2.0  
885  
1.5  
915  
1.0  
940  
0.5  
965  
3.0  
995 1020 1040 1060  
2.5 2.0 2.0 1.5  
0.29 0.32 0.37 0.41 0.46 0.50 0.55 0.59 0.62 0.66 0.70 0.73 0.77 0.81 0.85 0.88  
B
568  
4.5  
B
620  
3.5  
B
665  
3.0  
A
710  
4.5  
A
A
A
A
A
A
A
C
C
C
C
C
755  
3.5  
790  
3.0  
830  
2.5  
865  
2.0  
895  
1.5  
925  
1.0  
955  
0.5  
985 1015 1035 1060 1080  
2.5 2.0 2.0 1.5 1.0  
0.33 0.36 0.42 0.47 0.52 0.57 0.61 0.66 0.69 0.73 0.77 0.81 0.85 0.89 0.92 0.96  
B
589  
4.0  
B
635  
3.5  
A
680  
5.0  
A
725  
4.0  
A
A
A
A
A
A
C
C
C
C
C
C
765  
3.5  
805  
3.0  
845  
2.0  
880  
1.5  
910  
1.0  
940  
0.5  
975 1005 1030 1055 1075 1100  
3.0 2.5 2.0 1.5 1.5 1.0  
0.41 0.45 0.49 0.52 0.57 0.63 0.68 0.72 0.76 0.80 0.84 0.88 0.92 0.96 1.00 1.04  
B
615  
3.5  
B
660  
3.0  
A
700  
4.5  
A
740  
4.0  
A
A
A
A
A
A
C
C
C
C
E
E
780  
3.0  
820  
2.5  
860  
2.0  
895  
1.5  
925  
1.0  
960  
0.5  
990 1020 1045 1070 1095 1120  
2.5 2.0 2.0 1.5 1.0 0.5  
0.44 0.49 0.54 0.58 0.64 0.69 0.74 0.78 0.83 0.87 0.91 0.96 1.00 1.04 1.08 1.12  
B
640  
3.0  
A
680  
5.0  
A
720  
4.5  
A
760  
3.5  
A
A
A
A
A
C
C
C
E
E
E
E
800  
3.0  
840  
2.5  
880  
1.5  
910  
1.0  
945  
0.5  
975 1005 1035 1060 1085 1115 1135  
3.0 2.5 2.0 1.5 1.5 1.0 0.5  
0.52 0.56 0.60 0.65 0.70 0.75 0.80 0.85 0.89 0.94 1.00 1.05 1.11 1.16 1.22 1.25  
Sheave/Motor  
rpm  
Turns Open  
bhp  
Sheave/Motor  
rpm  
Turns Open  
bhp  
B
665  
3.0  
A
705  
4.5  
A
745  
4.0  
A
785  
3.5  
A
A
A
A
C
C
E
E
E
E
E
E
825  
2.5  
860  
2.0  
895  
1.5  
930  
0.5  
960  
3.0  
995 1025 1050 1080 1105 1135 1155  
2.5 2.0 2.0 1.5 1.0 0.5 0.5  
0.57 0.62 0.67 0.73 0.79 0.84 0.89 1.00 1.00 1.03 1.08 1.14 1.20 1.26 1.30 1.35  
A
695  
5.0  
A
735  
4.0  
A
775  
3.5  
A
810  
3.0  
A
A
A
D
D
E
E
E
E
E
E
E
850  
2.0  
885  
1.5  
920  
1.0  
950  
0.5  
980 1015 1040 1070 1100 1130 1150 1175  
0.0 2.0 2.0 1.5 1.0 0.5 0.5 0.0  
0.64 0.69 0.75 0.81 0.87 0.92 1.00 1.01 1.05 1.11 1.17 1.23 1.29 1.34 1.39 1.43  
Sheave/Motor  
rpm  
Turns Open  
A
725  
4.5  
A
765  
3.5  
A
800  
3.0  
A
835  
2.5  
A
A
D
D
E
E
E
E
E
E
E
E
870  
2.0  
905  
1.5  
940  
0.5  
970 1000 1030 1060 1090 1120 1145 1170 1190  
0.0 2.5 2.0 1.5 1.0 0.5 0.5 0.0 0.0  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, D = Standard RPM/  
Large Motor, E = High RPM/Large Motor  
13  
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Table 7 — 50RTP06 Blower Performance Data  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.27  
B
0.1  
0.31  
B
0.2  
0.35  
B
0.3  
0.39  
B
0.4  
0.43  
A
0.5  
0.47  
A
0.6  
0.51  
A
0.7  
0.55  
A
0.8  
0.59  
A
0.9  
0.62  
A
1.0  
0.66  
A
1.1  
0.70  
A
1.2  
0.74  
A
1.3  
0.76  
C
1.4  
0.79  
C
1.5  
0.83  
C
bhp  
Sheave/Motor  
rpm  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
2600  
2700  
2800  
2900  
3000  
568  
5.0  
0.29  
B
620  
3.5  
0.33  
B
665  
2.5  
0.37  
B
710  
1.5  
0.42  
B
755  
5.0  
0.46  
A
790  
4.0  
0.50  
A
830  
3.5  
0.55  
A
865  
3.0  
0.59  
A
895  
2.5  
0.63  
A
920  
2.0  
0.67  
A
950  
1.0  
0.70  
A
975  
0.5  
1005  
0.0  
1025  
4.0  
1045  
4.0  
1070  
3.5  
Turns Open  
bhp  
0.74  
A
0.77  
C
0.81  
C
0.85  
C
0.89  
C
Sheave/Motor  
rpm  
573  
4.5  
0.32  
B
625  
3.5  
0.36  
B
670  
2.5  
0.41  
B
715  
1.5  
0.46  
B
755  
5.0  
0.51  
A
795  
4.0  
0.56  
A
830  
3.5  
0.60  
A
870  
3.0  
0.65  
A
900  
2.0  
0.69  
A
930  
1.5  
0.72  
A
960  
1.0  
0.76  
A
990  
0.5  
1015  
4.5  
1040  
4.0  
1060  
3.5  
1085  
3.5  
Turns Open  
bhp  
0.80  
A
0.84  
C
0.88  
C
0.92  
C
0.96  
C
Sheave/Motor  
rpm  
583  
4.5  
0.39  
B
630  
3.0  
0.44  
B
675  
2.0  
0.47  
B
720  
1.0  
0.51  
B
760  
4.5  
0.56  
A
800  
3.5  
0.61  
A
835  
3.0  
0.66  
A
875  
2.5  
0.71  
A
905  
2.0  
0.75  
A
935  
1.5  
0.79  
A
970  
0.5  
0.83  
A
1000  
0.0  
1025  
4.0  
1050  
3.5  
1075  
3.5  
1100  
3.0  
Turns Open  
bhp  
0.87  
C
0.91  
C
0.95  
C
0.99  
C
1.03  
C
Sheave/Motor  
rpm  
599  
4.0  
0.42  
B
645  
3.0  
0.47  
B
685  
2.0  
0.52  
B
725  
1.0  
0.56  
A
770  
4.5  
0.62  
A
805  
3.5  
0.67  
A
845  
3.0  
0.72  
A
885  
2.5  
0.77  
A
915  
1.5  
0.81  
A
950  
1.0  
0.85  
A
980  
0.5  
0.89  
A
1010  
4.5  
1035  
4.0  
1060  
3.5  
1085  
3.0  
1110  
3.0  
Turns Open  
bhp  
0.93  
C
0.98  
C
1.02  
C
1.06  
C
1.11  
C
Sheave/Motor  
rpm  
620  
3.5  
0.49  
B
665  
2.5  
0.54  
B
705  
1.5  
0.58  
B
745  
5.0  
0.62  
A
785  
4.0  
0.67  
A
825  
3.5  
0.72  
A
865  
2.5  
0.78  
A
900  
2.0  
0.82  
A
930  
1.5  
0.87  
A
960  
1.0  
0.91  
A
995  
0.0  
0.97  
C
1020  
4.0  
1050  
3.5  
1075  
3.5  
1100  
3.0  
1130  
2.5  
Turns Open  
bhp  
1.02  
C
1.08  
C
1.13  
C
1.19  
C
1.23  
C
Sheave/Motor  
rpm  
640  
3.0  
0.54  
B
685  
2.0  
0.58  
B
725  
1.0  
0.62  
A
765  
4.5  
0.68  
A
800  
4.0  
0.74  
A
840  
3.0  
0.79  
A
880  
2.5  
0.85  
A
910  
2.0  
0.90  
A
945  
1.0  
0.94  
A
975  
0.5  
0.99  
A
1010  
4.5  
1.04  
C
1035  
4.0  
1065  
3.5  
1090  
3.0  
1120  
2.5  
1145  
2.5  
Turns Open  
bhp  
1.10  
C
1.15  
C
1.21  
C
1.27  
C
1.31  
C
Sheave/Motor  
rpm  
660  
2.5  
0.59  
B
700  
1.5  
0.64  
B
740  
5.0  
0.69  
A
780  
4.5  
0.75  
A
820  
3.5  
0.81  
A
855  
3.0  
0.87  
A
890  
2.0  
0.92  
A
925  
1.5  
0.96  
A
955  
1.0  
1.01  
A
990  
0.5  
1.05  
A
1020  
4.0  
1.11  
C
1050  
3.5  
1075  
3.5  
1105  
3.0  
1135  
2.5  
1155  
2.0  
Turns Open  
bhp  
1.17  
C
1.23  
C
1.29  
C
1.34  
C
1.39  
C
Sheave/Motor  
rpm  
680  
2.0  
0.64  
B
725  
1.0  
0.69  
A
765  
4.5  
0.75  
A
800  
4.0  
0.80  
A
835  
3.5  
0.86  
A
870  
3.0  
0.92  
A
905  
2.0  
0.97  
A
935  
1.5  
1.02  
A
970  
0.5  
1.08  
A
1000  
0.0  
1.13  
C
1030  
4.0  
1.19  
C
1060  
3.5  
1090  
3.0  
1120  
C
1145  
2.0  
1170  
2.0  
Turns Open  
bhp  
1.25  
C
1.30  
C
1.36  
C
1.41  
C
1.50  
E
Sheave/Motor  
rpm  
700  
1.5  
0.70  
B
740  
5.0  
0.75  
A
780  
4.5  
0.80  
A
815  
3.5  
0.86  
A
850  
3.0  
0.91  
A
885  
2.5  
0.97  
A
920  
2.0  
1.02  
A
950  
1.0  
1.08  
A
985  
0.5  
1.14  
C
1015  
4.5  
1.20  
C
1045  
3.5  
1.26  
C
1075  
3.0  
1100  
3.0  
1130  
2.5  
1155  
2.0  
1180  
1.5  
Turns Open  
bhp  
1.32  
C
1.38  
C
1.50  
E
1.52  
E
1.56  
E
Sheave/Motor  
rpm  
725  
1.0  
0.76  
A
760  
4.5  
0.82  
A
795  
4.0  
0.88  
A
830  
3.5  
0.93  
A
865  
3.0  
0.98  
A
900  
2.0  
1.05  
A
930  
1.5  
1.10  
A
960  
1.0  
1.16  
A
995  
4.5  
1.22  
C
1025  
4.0  
1.30  
C
1055  
3.5  
1.37  
C
1085  
3.0  
1115  
2.5  
1140  
2.0  
1165  
2.0  
1190  
1.5  
Turns Open  
bhp  
1.44  
C
1.50  
E
1.56  
E
1.63  
E
1.69  
E
Sheave/Motor  
rpm  
745  
5.0  
0.82  
A
780  
4.0  
0.88  
A
815  
3.5  
0.93  
A
850  
3.0  
0.98  
A
880  
2.5  
1.05  
A
915  
1.5  
1.11  
A
945  
1.0  
1.17  
A
980  
0.5  
1.23  
C
1010  
4.5  
1.30  
C
1040  
4.0  
1.37  
C
1070  
3.5  
1.44  
C
1100  
3.0  
1125  
2.5  
1150  
2.0  
1180  
1.5  
1205  
1.5  
Turns Open  
bhp  
1.51  
E
1.59  
E
1.65  
E
1.71  
E
1.77  
E
Sheave/Motor  
rpm  
765  
4.5  
0.91  
A
800  
4.0  
0.96  
A
830  
3.5  
1.02  
A
865  
2.5  
1.07  
A
900  
2.0  
1.13  
A
930  
1.5  
1.20  
A
960  
0.5  
1.26  
A
990  
4.5  
1.32  
C
1020  
4.0  
1.38  
C
1050  
3.5  
1.46  
C
1080  
3.0  
1.53  
E
1110  
2.5  
1140  
2.5  
1165  
2.0  
1190  
1.5  
1215  
1.0  
Turns Open  
bhp  
1.60  
E
1.66  
E
1.72  
E
1.78  
E
1.84  
E
Sheave/Motor  
rpm  
785  
4.0  
820  
3.5  
855  
3.0  
885  
2.5  
915  
2.0  
950  
1.0  
980  
0.5  
1010  
4.0  
1035  
4.0  
1065  
3.5  
1095  
3.0  
1125  
2.5  
1150  
2.0  
1175  
1.5  
1200  
1.5  
1225  
1.0  
Turns Open  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, E = High RPM/Large  
Motor  
14  
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Table 8 — 50RTP08 Blower Performance Data  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4 0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
bhp  
Sheave/Motor  
rpm  
0.36 0.39 0.42 0.46 0.52 0.6 0.67 0.7 0.74 0.77 0.82 0.88 0.95 1.01 1.07 1.13 1.18 1.22 1.27 1.32 1.37  
B
B
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
2400  
2500  
2600  
2700  
2800  
2900  
3000  
3100  
3200  
3300  
3400  
3500  
3600  
3700  
500 525 563 596 632 668 704 728 756 780 808 832 856 880 904 928 948 968 988 1008 1028  
6.0 5.0 4.0 3.0 6.0 5.0 4.5 4.0 3.5 2.5 2.0 1.5 1.0 6.0 5.5 5.0 4.5 4.5 4.0 4.0 3.5  
0.40 0.45 0.50 0.56 0.62 0.67 0.72 0.76 0.80 0.85 0.90 0.97 1.05 1.12 1.18 1.22 1.26 1.31 1.36 1.40 1.46  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
504 538 575 612 648 680 712 740 764 792 816 840 868 892 916 936 956 976 1000 1016 1036  
5.5 4.5 3.5 3.0 5.5 5.0 4.5 3.5 3.0 2.5 2.0 1.5 1.0 5.5 5.0 5.0 4.5 4.0 4.0 3.5 3.5  
0.47 0.51 0.55 0.60 0.67 0.73 0.78 0.84 0.89 0.94 1.00 1.05 1.11 1.16 1.23 1.28 1.35 1.41 1.46 1.51 1.56  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
521 554 592 624 660 692 720 748 776 800 828 852 876 900 924 944 968 988 1008 1028 1048  
5.5 4.5 3.5 6.0 5.5 4.5 4.0 3.5 2.5 2.0 1.5 1.0 6.0 5.5 5.0 4.5 4.0 4.0 3.5 3.5 3.0  
0.51 0.56 0.61 0.66 0.72 0.77 0.82 0.88 0.94 0.99 1.06 1.14 1.21 1.27 1.32 1.39 1.44 1.50 1.55 1.59 1.65  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
538 571 608 640 672 704 732 760 788 812 836 864 888 912 932 956 976 1000 1020 1036 1056  
5.0 4.0 3.0 5.5 5.0 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.5 5.0 4.5 4.5 4.0 3.5 3.5 3.0 3.0  
0.57 0.62 0.67 0.72 0.77 0.83 0.90 0.96 1.03 1.08 1.15 1.20 1.25 1.33 1.40 1.48 1.56 1.62 1.67 1.71 1.75  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
C
550 583 616 648 684 712 740 768 796 820 848 872 896 920 940 964 988 1008 1028 1044 1064  
4.5 3.5 2.5 5.5 5.0 4.0 3.5 3.0 2.5 2.0 1.5 6.0 5.5 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5  
0.62 0.66 0.72 0.78 0.83 0.89 0.95 1.02 1.08 1.15 1.22 1.30 1.37 1.44 1.51 1.58 1.66 1.70 1.75 1.79 1.84  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
C
567 600 632 664 696 724 752 780 808 832 856 884 908 932 952 976 1000 1016 1036 1056 1076  
4.0 3.0 5.5 5.0 4.5 3.5 3.0 2.5 2.0 1.5 1.0 5.5 5.0 4.5 4.5 4.0 3.5 3.5 3.0 3.0 2.5  
0.68 0.73 0.78 0.83 0.89 0.97 1.05 1.13 1.18 1.24 1.30 1.35 1.42 1.51 1.60 1.68 1.76 1.80 1.85 1.88 1.92  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
C
C
583 616 648 680 712 740 768 796 820 844 872 896 916 940 964 984 1008 1028 1048 1064 1084  
3.5 2.5 5.5 5.0 4.0 3.5 3.0 2.5 1.5 1.5 6.0 5.5 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.5  
0.75 0.81 0.88 0.93 1.00 1.05 1.12 1.18 1.25 1.32 1.38 1.45 1.53 1.61 1.67 1.75 1.80 1.86 1.92 2.00 2.03  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
E
E
604 636 668 696 728 752 780 808 832 856 880 904 928 952 972 996 1016 1036 1056 1076 1096  
3.0 6.0 5.0 4.5 4.0 3.0 2.5 2.0 1.5 1.0 5.5 5.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0  
0.80 0.86 0.93 0.99 1.07 1.15 1.23 1.28 1.34 1.39 1.44 1.52 1.61 1.69 1.78 1.86 1.91 1.96 2.01 2.06 2.12  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
E
E
E
620 652 684 712 740 768 796 820 844 868 892 916 940 960 984 1008 1028 1048 1064 1084 1104  
2.5 5.5 5.0 4.0 3.5 3.0 2.5 2.0 1.0 6.0 5.5 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.5 2.0  
0.89 0.96 1.03 1.09 1.15 1.22 1.27 1.35 1.42 1.48 1.55 1.63 1.71 1.80 1.87 1.95 2.01 2.07 2.13 2.19 2.25  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
E
E
E
E
E
636 668 696 724 752 780 804 832 856 880 904 924 948 972 992 1016 1036 1056 1076 1096 1112  
6.0 5.0 4.5 4.0 3.5 2.5 2.0 1.5 1.0 5.5 5.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 2.0  
0.95 1.02 1.09 1.17 1.24 1.32 1.38 1.43 1.48 1.53 1.61 1.70 1.80 1.88 2.00 2.04 2.11 2.18 2.25 2.32 2.38  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
C
C
C
C
C
C
E
E
E
E
E
E
E
652 684 712 740 764 792 816 840 864 888 912 936 960 980 1004 1024 1044 1064 1084 1104 1120  
5.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5 6.0 5.5 5.0 4.5 4.5 4.0 3.5 3.0 3.0 2.5 2.5 2.0 1.5  
1.05 1.13 1.19 1.25 1.31 1.37 1.44 1.51 1.57 1.64 1.74 1.82 1.91 2.01 2.08 2.14 2.21 2.27 2.33 2.41 2.48  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
C
C
C
C
C
E
E
E
E
E
E
E
E
668 696 724 752 776 804 828 852 876 900 924 944 968 992 1012 1032 1052 1072 1092 1112 1128  
5.0 4.5 4.0 3.5 3.0 2.0 1.5 1.0 5.5 5.0 5.0 4.5 4.0 3.5 3.5 3.0 3.0 2.5 2.0 2.0 1.5  
1.12 1.18 1.26 1.34 1.41 1.48 1.54 1.61 1.67 1.73 1.82 1.90 1.97 2.06 2.14 2.21 2.29 2.36 2.44 2.53 2.61  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
C
C
C
C
C
C
E
E
E
E
E
E
E
E
680 708 736 764 788 816 840 864 888 908 932 956 976 1000 1020 1040 1060 1080 1100 1120 1136  
5.0 4.0 3.5 3.0 2.5 2.0 1.5 6.0 5.5 5.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5 1.5  
1.23 1.29 1.35 1.41 1.47 1.56 1.64 1.70 1.79 1.87 2.00 2.02 2.10 2.17 2.24 2.31 2.38 2.46 2.54 2.64 2.72  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
C
C
C
E
E
E
E
E
E
E
E
E
E
E
696 724 752 776 804 828 852 872 896 920 944 964 988 1008 1028 1048 1068 1088 1108 1128 1144  
4.5 4.0 3.5 3.0 2.0 1.5 1.0 5.5 5.0 5.0 4.5 4.5 4.0 3.5 3.0 3.0 2.5 2.5 2.0 1.5 1.5  
Turns Open  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, E = High RPM/Large  
Motor  
15  
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Table 8 — 50RTP08 Blower Performance Data (cont)  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4 0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4 1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
bhp  
Sheave/Motor  
rpm  
1.29 1.37 1.44 1.52 1.59 1.67 1.74 1.82 1.89 2.00 2.04 2.12 2.20 2.28 2.36 2.44 2.52 2.60 2.67 2.77 2.84  
A
A
A
A
A
A
C
C
C
E
E
E
E
E
E
E
E
E
E
E
E
3800  
3900  
4000  
712 740 764 792 816 840 864 888 908 932 952 976 1000 1020 1040 1060 1080 1100 1116 1136 1152  
Turns Open  
bhp  
4.0  
3.5  
3.0  
2.5  
2.0 1.5  
6.0  
5.5  
5.0  
4.5  
4.5  
4.0  
3.5  
3.0  
3.0 2.5  
2.5  
2.0  
2.0  
1.5  
1.0  
1.41 1.48 1.54 1.61 1.70 1.78 1.84 1.93 2.01 2.08 2.17 2.26 2.33 2.41 2.49 2.57 2.65 2.74 2.81 2.89  
Sheave/Motor  
rpm  
A
A
A
A
A
A
C
C
E
E
E
E
E
E
E
E
E
E
E
E
728 752 776 804 828 852 872 896 920 940 964 988 1008 1028 1048 1068 1088 1108 1124 1144  
Turns Open  
bhp  
4.0  
3.0  
2.5  
2.0  
1.5 1.0  
5.5  
5.5  
5.0  
4.5  
4.0  
4.0  
3.5  
3.0  
3.0 2.5  
2.0  
2.0  
1.5  
1.0  
1.48 1.56 1.64 1.71 1.80 1.88 2.00 2.03 2.12 2.19 2.27 2.35 2.43 2.52 2.61 2.69 2.78 2.86 2.93  
Sheave/Motor  
rpm  
A
A
A
A
A
C
E
E
E
E
E
E
E
E
E
D
E
E
E
740 768 792 816 840 864 888 908 932 952 976 996 1016 1036 1056 1076 1096 1116 1132  
3.5 3.0 2.5 2.0 1.5 6.0 5.5 5.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 2.0 1.5  
Turns Open  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, E = High RPM/Large  
Motor  
16  
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Table 9 — 50RTP10 Blower Performance Data  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4 0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
bhp  
Sheave/Motor  
rpm  
0.66 0.71 0.76 0.81 0.86 0.94 1.02 1.1 1.17 1.22 1.27 1.32 1.39 1.48 1.56 1.65 1.74 1.78 1.83 1.86 1.91  
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
3000  
3100  
3200  
3300  
3400  
3500  
3600  
3700  
3800  
3900  
4000  
4100  
4200  
571 604 636 668 700 728 756 784 812 836 860 884 908 932 952 976 1000 1020 1040 1056 1076  
5.5 5.0 4.0 3.0 2.0 6.0 5.5 5.0 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.0 4.0 3.5 3.0 3.0  
0.73 0.79 0.85 0.91 0.98 1.04 1.10 1.16 1.23 1.29 1.36 1.43 1.50 1.58 1.64 1.72 1.78 1.84 1.89 1.95 2.01  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
592 624 656 684 716 744 772 800 824 848 872 896 920 944 964 988 1008 1028 1048 1068 1088  
5.0 4.5 3.5 2.5 6.0 5.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5  
0.78 0.84 0.90 0.97 1.04 1.12 1.20 1.27 1.32 1.37 1.42 1.49 1.58 1.66 1.75 1.84 1.89 1.94 2.00 2.05 2.10  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
608 640 672 704 728 756 784 812 836 860 884 908 932 952 976 1000 1020 1040 1060 1080 1100  
4.5 4.0 3.0 2.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5  
0.87 0.93 1.01 1.08 1.14 1.20 1.26 1.33 1.39 1.46 1.53 1.61 1.68 1.77 1.86 1.92 1.98 2.04 2.10 2.16 2.23  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
628 656 688 716 744 772 800 824 848 872 896 920 940 964 988 1008 1028 1048 1068 1088 1108  
4.0 3.5 2.5 1.5 5.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5  
0.94 1.01 1.07 1.15 1.23 1.30 1.37 1.42 1.47 1.52 1.59 1.69 1.77 1.86 1.96 2.03 2.10 2.16 2.23 2.30 2.36  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
644 676 704 732 760 784 812 836 860 884 908 932 952 976 1000 1020 1040 1060 1080 1100 1116  
3.5 3.0 2.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0  
1.03 1.12 1.18 1.24 1.30 1.36 1.43 1.49 1.56 1.63 1.72 1.80 1.90 1.99 2.07 2.13 2.19 2.26 2.32 2.40 2.47  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
660 692 720 744 772 800 824 848 872 896 920 940 964 988 1008 1028 1048 1068 1088 1108 1124  
3.5 2.5 6.0 5.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0  
1.11 1.17 1.25 1.33 1.40 1.47 1.53 1.60 1.66 1.73 1.80 1.89 1.97 2.05 2.12 2.20 2.27 2.35 2.42 2.51 2.59  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
676 704 732 760 784 812 836 860 884 908 928 952 976 996 1016 1036 1056 1076 1096 1116 1132  
3.0 2.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0  
1.22 1.28 1.35 1.40 1.46 1.54 1.62 1.70 1.77 1.85 1.94 2.00 2.09 2.17 2.24 2.31 2.38 2.46 2.52 2.62 2.72  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
C
692 720 748 772 800 824 848 872 892 916 940 960 984 1008 1028 1048 1068 1088 1104 1124 1144  
2.5 6.0 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5  
1.28 1.35 1.43 1.51 1.58 1.66 1.73 1.81 1.87 1.96 2.04 2.10 2.19 2.26 2.34 2.42 2.50 2.58 2.66 2.75 2.84  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
C
708 732 760 788 812 836 860 884 904 928 952 972 996 1016 1036 1056 1076 1096 1112 1132 1152  
2.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5  
1.39 1.46 1.53 1.60 1.68 1.76 1.83 1.91 2.00 2.08 2.16 2.24 2.32 2.40 2.48 2.56 2.64 2.72 2.81 2.88 3.00  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
C
E
720 748 772 800 824 848 868 892 916 940 960 984 1004 1024 1044 1064 1084 1104 1124 1140 1160  
5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 2.0 1.5  
1.47 1.54 1.62 1.70 1.78 1.86 1.95 2.01 2.10 2.17 2.26 2.33 2.41 2.50 2.59 2.68 2.76 2.85 2.93 3.00 3.07  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
C
E
E
736 760 788 812 836 860 884 904 928 948 972 992 1012 1032 1052 1072 1092 1112 1132 1148 1168  
5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.0 2.0 1.5 1.5  
1.56 1.66 1.74 1.82 1.89 1.97 2.03 2.12 2.20 2.29 2.36 2.46 2.53 2.62 2.72 2.81 2.90 3.00 3.06 3.12 3.20  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
E
E
E
E
748 776 800 824 848 872 892 916 936 960 980 1004 1020 1040 1060 1080 1100 1120 1140 1156 1176  
5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.0  
1.64 1.72 1.81 1.90 1.97 2.06 2.15 2.23 2.31 2.38 2.46 2.56 2.66 2.76 2.86 3.00 3.03 3.11 3.18 3.26 3.34  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
E
E
E
E
E
E
764 788 812 836 856 880 904 924 948 968 988 1012 1032 1052 1072 1088 1108 1128 1144 1164 1184  
0.66 0.71 0.76 0.81 0.86 0.94 1.02 1.1 1.17 1.22 1.27 1.32 1.39 1.48 1.56 1.65 1.74 1.78 1.83 1.86 1.91  
Turns Open  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, E = High RPM/Large  
Motor  
17  
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Table 9 — 50RTP10 Blower Performance Data (cont)  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4 0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4 1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
bhp  
Sheave/Motor  
rpm  
1.76 1.84 1.93 2.00 2.08 2.17 2.25 2.34 2.42 2.50 2.60 2.70 2.80 2.90 3.00 3.10 3.16 3.24 3.31 3.39 3.45  
A
A
A
A
A
A
A
A
C
C
C
C
C
C
E
E
E
E
E
E
E
4300  
4400  
4500  
4600  
4700  
4800  
4900  
5000  
776 800 824 844 868 892 912 936 956 976 1000 1020 1040 1060 1080 1100 1116 1136 1152 1172 1188  
4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.0 1.0  
1.86 1.95 2.04 2.12 2.22 2.32 2.4 2.48 2.57 2.65 2.74 2.84 3.00 3.04 3.14 3.23 3.30 3.38 3.44 3.52 3.58  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
C
C
C
C
E
E
E
E
E
E
E
E
E
788 812 836 856 880 904 924 944 968 988 1008 1028 1048 1068 1088 1108 1124 1144 1160 1180 1196  
4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5 1.5 1.0  
1.96 2.06 2.15 2.23 2.33 2.43 2.52 2.61 2.69 2.78 2.88 3.00 3.08 3.18 3.28 3.35 3.44 3.53 3.61 3.70  
Turns Open  
bhp  
1.0  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
C
C
C
C
E
E
E
E
E
E
E
E
E
800 824 848 868 892 916 936 956 976 996 1016 1036 1056 1076 1096 1112 1132 1152 1168 1188  
4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.5 1.0  
2.12 2.20 2.30 2.38 2.47 2.56 2.64 2.73 2.83 2.92 3.00 3.10 3.20 3.30 3.40 3.49 3.60 3.68 3.79 3.88  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
C
C
C
E
E
E
E
E
E
E
E
E
E
820 840 864 884 908 928 948 968 992 1012 1028 1048 1068 1088 1108 1124 1144 1160 1180 1196  
3.5 3.0 3.0 2.5 2.0 1.5 1.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5 1.5 1.0  
2.23 2.31 2.40 2.50 2.59 2.68 2.76 2.85 3.00 3.04 3.14 3.24 3.34 3.42 3.53 3.62 3.73 3.84 3.93  
Turns Open  
bhp  
1.0  
Sheave/Motor  
rpm  
A
A
A
A
A
A
C
C
E
E
E
E
E
E
E
E
E
E
E
832 852 876 900 920 940 960 980 1000 1020 1040 1060 1080 1096 1116 1132 1152 1172 1188  
3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.0 1.0  
2.35 2.46 2.55 2.65 2.73 2.81 2.89 3.00 3.06 3.16 3.26 3.34 3.44 3.55 3.64 3.76 3.86 3.98 4.08  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
C
C
E
E
E
E
E
E
E
E
E
E
E
E
844 868 888 912 932 952 972 992 1012 1032 1052 1068 1088 1108 1124 1144 1160 1180 1196  
Turns Open  
bhp  
3.0  
2.5  
2.0  
1.5  
1.5 5.0  
4.5  
4.5  
4.0  
3.5  
3.5  
3.0  
2.5  
2.5  
2.0 1.5  
1.5  
1.0  
1.0  
2.49 2.58 2.68 2.77 2.85 3.00 3.03 3.12 3.22 3.30 3.40 3.50 3.60 3.70 3.82 3.91 4.03 4.13  
Sheave/Motor  
rpm  
A
A
A
A
A
E
E
E
E
E
E
E
E
E
E
E
E
E
860 880 904 924 944 964 984 1004 1024 1040 1060 1080 1100 1116 1136 1152 1172 1188  
3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.0 1.0  
2.63 2.72 2.81 2.91 3.00 3.09 3.18 3.28 3.36 3.46 3.56 3.66 3.75 3.87 3.96 4.08 4.18 4.28  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
E
E
E
E
E
E
E
E
E
E
E
E
E
E
876 896 916 936 956 976 996 1016 1032 1052 1072 1092 1108 1128 1144 1164 1180 1196  
2.5 2.0 1.5 1.0 5.0 4.5 4.0 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5 1.5 1.0 1.0  
Turns Open  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, E = High RPM/Large  
Motor  
18  
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Table 10 — 50RTP12 Blower Performance Data  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4 0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
bhp  
Sheave/Motor  
rpm  
0.86 0.93 1.01 1.10 1.18 1.26 1.36 1.46 1.57 1.68 1.77 1.86 1.94 2.03 2.14 2.27 2.38 2.52 2.70 2.86 3.04  
B
B
B
B
B
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
E
3600  
3800  
4000  
4200  
4400  
4600  
4800  
5000  
5200  
5400  
5600  
5800  
6000  
640 672 704 732 760 788 816 840 868 896 924 952 980 1008 1036 1068 1096 1124 1160 1192 1228  
5.5 5.0 4.0 3.0 2.0 6.0 5.0 4.5 3.5 3.0 2.0 1.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0  
1.06 1.15 1.24 1.33 1.41 1.51 1.59 1.69 1.77 1.87 1.95 2.03 2.13 2.23 2.36 2.49 2.60 2.74 2.88 3.04 3.18  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
E
E
672 704 732 760 788 816 840 868 892 920 944 968 996 1020 1048 1076 1100 1128 1156 1188 1216  
5.0 4.0 3.0 2.0 6.0 5.0 4.5 3.5 3.0 2.0 1.5 1.0 6.0 5.5 5.0 4.0 3.5 3.0 2.5 2.0 2.0  
1.23 1.31 1.41 1.51 1.61 1.69 1.77 1.87 1.96 2.04 2.13 2.22 2.32 2.44 2.56 2.70 2.81 2.92 3.04 3.16 3.30  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
E
E
E
708 732 760 788 816 840 864 892 916 940 964 988 1012 1036 1060 1088 1112 1136 1164 1192 1216  
4.0 3.0 2.0 6.0 5.0 4.5 4.0 3.0 2.5 1.5 1.0 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5  
1.25 1.4 1.59 1.71 1.79 1.87 1.97 2.06 2.14 2.24 2.34 2.44 2.55 2.66 2.75 2.86 3.00 3.12 3.25 3.38 3.52  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
A
A
A
A
A
A
A
A
C
C
C
C
C
C
E
E
E
E
E
696 736 784 816 840 864 892 916 936 960 984 1008 1032 1056 1076 1100 1124 1148 1172 1196 1220  
3.5 3.0 6.0 5.0 4.5 4.0 3.0 2.5 2.0 1.0 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.5  
1.56 1.69 1.79 1.88 1.96 2.04 2.14 2.24 2.35 2.45 2.54 2.65 2.74 2.85 2.96 3.07 3.20 3.34 3.45 3.59 3.74  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
A
A
A
A
A
A
A
A
C
C
C
C
C
C
E
E
E
E
E
E
752 784 812 836 860 884 908 932 956 980 1000 1024 1044 1068 1092 1112 1136 1160 1180 1204 1228  
2.5 6.0 5.0 4.5 4.0 3.0 2.5 2.0 1.0 6.0 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0  
1.77 1.88 1.96 2.05 2.13 2.22 2.33 2.42 2.53 2.62 2.75 2.85 3.00 3.11 3.22 3.32 3.44 3.54 3.64 3.78 3.92  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
A
A
A
A
A
A
A
A
C
C
C
E
E
E
E
E
E
E
E
E
780 808 832 856 880 904 928 948 972 992 1016 1036 1060 1084 1104 1124 1148 1168 1188 1212 1232  
1.5 5.5 4.5 4.0 3.5 2.5 2.0 1.5 1.0 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 2.0 1.5 1.0  
1.98 2.08 2.17 2.27 2.37 2.48 2.57 2.67 2.76 2.89 3.00 3.11 3.22 3.33 3.44 3.55 3.68 3.79 3.9 4.04 4.18  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
C
C
E
E
E
E
E
E
E
E
E
E
E
808 832 856 880 904 928 948 972 992 1016 1036 1056 1076 1096 1116 1136 1160 1180 1200 1220 1240  
5.5 4.5 4.0 3.5 2.5 2.0 1.5 1.0 6.0 5.5 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.0 1.5 1.0  
2.18 2.30 2.41 2.52 2.61 2.71 2.80 2.89 3.01 3.12 3.23 3.34 3.46 3.57 3.69 3.81 3.93 4.05 4.18 4.32  
Turns Open  
bhp  
1.0  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
C
E
E
E
E
E
E
E
E
E
E
E
E
828 856 880 904 924 948 968 988 1012 1032 1052 1072 1092 1112 1132 1152 1172 1192 1212 1232  
4.5 4.0 3.5 2.5 2.0 1.5 1.0 6.0 5.5 5.0 4.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.5  
2.41 2.50 2.60 2.72 2.82 2.94 3.04 3.17 3.29 3.44 3.58 3.70 3.82 3.92 4.01 4.13 4.23 4.33 4.47  
Turns Open  
bhp  
1.0  
Sheave/Motor  
rpm  
A
A
A
A
A
A
E
E
E
E
E
E
E
E
E
E
E
E
E
852 876 900 924 944 968 988 1012 1032 1056 1080 1100 1120 1136 1152 1172 1188 1204 1224  
4.0 3.5 2.5 2.0 1.0 1.0 6.0 5.5 5.0 4.5 4.0 4.0 3.0 3.0 2.5 2.0 2.0 1.5 1.0  
2.64 2.75 2.87 3.00 3.10 3.20 3.30 3.41 3.52 3.63 3.74 3.86 4.00 4.11 4.25 4.39 4.53 4.64 4.78  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
D
D
E
E
E
E
E
E
E
E
E
E
E
E
E
E
876 900 924 944 968 988 1008 1028 1048 1068 1088 1108 1128 1144 1164 1184 1204 1220 1240  
Turns Open  
bhp  
3.5  
3.0  
2.0  
1.5  
1.0 6.0  
5.5  
5.0  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.5  
2.0  
1.5  
1.0  
1.0  
2.88 2.98 3.10 3.20 3.32 3.42 3.54 3.66 3.78 3.90 4.03 4.14 4.28 4.42 4.53 4.67 4.78 4.92  
Sheave/Motor  
rpm  
A
D
D
D
E
E
E
E
E
E
E
E
E
E
E
E
E
E
896 916 940 960 984 1004 1024 1044 1064 1084 1104 1120 1140 1160 1176 1196 1212 1232  
Turns Open  
bhp  
3.0  
2.5  
1.5  
1.0  
6.0 5.5  
5.5  
5.0  
4.5  
4.0  
3.5  
3.0  
3.0  
2.5  
2.0  
1.5  
1.5  
1.0  
3.12 3.25 3.36 3.47 3.60 3.72 3.84 3.96 4.08 4.18 4.31 4.45 4.56 4.70 4.84 4.96  
Sheave/Motor  
rpm  
D
D
D
E
E
E
E
E
E
E
E
E
E
E
E
E
912 936 956 976 1000 1020 1040 1060 1080 1096 1116 1136 1152 1172 1192 1208  
Turns Open  
bhp  
2.5  
2.0  
1.0  
6.0  
6.0 5.5  
5.0  
4.5  
4.0  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.5  
3.36 3.49 3.63 3.74 3.86 3.99 4.12 4.25 4.37 4.48 4.62 4.76 4.88  
Sheave/Motor  
rpm  
D
D
D
E
E
E
E
E
E
E
E
E
E
928 952 976 996 1016 1036 1056 1076 1096 1112 1132 1152 1168  
2.0 1.5 1.0 6.0 5.5 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.0  
Turns Open  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, D = Standard RPM/  
Large Motor, E = High RPM/Large Motor  
19  
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Table 11 — 50RTP14 Blower Performance Data  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4 0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4 1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
bhp  
Sheave/Motor  
rpm  
0.83 0.91 0.99 1.06 1.15 1.25 1.35 1.45 1.54 1.64 1.72 1.82 1.91 1.99 2.06 2.14 2.22  
B
B
B
A
A
A
A
A
A
A
A
C
C
C
C
C
C
4200  
4400  
4600  
4800  
5000  
5200  
5400  
5600  
5800  
6000  
6200  
575 612 644 676 708 736 764 792 816 840 860 884 908 928 944 964 984  
5.5 4.0 3.0 6.0 5.0 4.5 3.5 2.5 2.0 1.5 1.0 5.5 5.0 4.5 4.0 3.5 3.0  
0.89 0.98 1.08 1.17 1.25 1.34 1.43 1.52 1.63 1.74 1.85 1.94 2.04 2.12 2.20 2.28 2.36  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
C
C
C
C
C
C
C
587 620 656 688 716 744 772 800 824 848 872 892 916 936 956 976 996  
5.0 4.0 2.5 5.5 4.5 4.0 3.0 2.5 2.0 1.0 5.5 5.0 4.5 4.0 4.0 3.5 3.0  
Turns Open  
bhp  
0.86 0.95 1.06 1.16 1.28 1.36 1.43 1.50 1.60 1.73 1.85 1.98 2.10 2.18 2.26 2.34 2.42 2.50  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
C
C
C
C
C
C
C
558 596 632 664 700 728 752 780 808 832 856 880 904 924 944 964 984 1004  
6.0 4.5 3.5 2.5 5.0 4.5 4.0 3.0 2.0 1.5 1.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5  
0.93 1.01 1.13 1.24 1.34 1.42 1.49 1.57 1.68 1.81 1.93 2.06 2.18 2.27 2.37 2.47 2.56 2.66  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
571 604 640 676 708 736 760 788 816 840 864 888 912 932 952 972 992 1012  
5.5 4.5 3.0 6.0 5.0 4.0 3.5 3.0 2.0 1.5 6.0 5.0 4.5 4.5 4.0 3.5 3.0 2.5  
1.03 1.13 1.25 1.36 1.45 1.54 1.62 1.71 1.83 1.99 2.12 2.26 2.35 2.46 2.54 2.63 2.72 2.83  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
C
C
C
C
C
C
C
C
583 616 652 688 716 744 768 796 820 848 872 896 916 940 960 980 1000 1020  
5.0 4.0 2.5 5.5 4.5 4.0 3.5 2.5 2.0 1.0 5.5 5.0 4.5 4.0 3.5 3.0 3.0 2.5  
1.02 1.11 1.22 1.34 1.47 1.58 1.69 1.78 1.90 2.00 2.13 2.23 2.34 2.45 2.59 2.70 2.84 3.00 3.03  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
C
C
C
C
C
C
E
E
558 596 628 660 696 724 752 776 804 828 856 880 904 924 948 968 992 1012 1028  
6.0 4.5 3.5 2.5 5.5 4.5 4.0 3.0 2.5 1.5 1.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0  
1.12 1.21 1.33 1.43 1.54 1.65 1.76 1.86 1.99 2.12 2.26 2.41 2.54 2.65 2.77 2.88 3.00 3.10 3.19  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
A
C
C
C
C
C
E
E
E
571 604 640 672 704 732 760 784 812 836 860 888 912 932 956 976 1000 1020 1036  
5.5 4.5 3.0 6.0 5.0 4.5 3.5 3.0 2.0 1.5 1.0 5.0 4.5 4.5 4.0 3.5 3.0 2.5 2.0  
1.23 1.33 1.43 1.54 1.66 1.79 1.91 2.04 2.17 2.27 2.38 2.50 2.63 2.79 3.00 3.09 3.24 3.32 3.41  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
C
C
C
C
E
E
E
E
E
583 616 648 680 712 740 764 792 820 844 868 896 916 940 964 984 1008 1024 1044  
5.0 4.0 3.0 5.5 5.0 4.0 3.5 2.5 2.0 1.5 6.0 5.0 4.5 4.0 3.5 3.0 2.5 2.5 2.0  
1.22 1.31 1.42 1.54 1.65 1.77 1.89 2.01 2.12 2.28 2.41 2.55 2.71 2.83 3.00 3.14 3.27 3.40 3.47 3.57  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
C
C
C
E
E
E
E
E
E
563 596 628 660 692 720 748 776 800 828 852 876 904 924 948 972 992 1016 1032 1052  
5.5 4.5 3.5 2.5 5.5 4.5 4.0 3.0 2.5 1.5 1.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5  
1.33 1.43 1.53 1.63 1.74 1.90 2.06 2.21 2.33 2.46 2.56 2.67 2.81 3.00 3.15 3.33 3.48 3.57 3.66 3.74  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
A
C
E
E
E
E
E
E
E
E
575 608 640 672 704 732 760 788 812 840 864 888 912 932 956 980 1000 1020 1040 1060  
5.5 4.0 3.0 6.0 5.0 4.5 3.5 3.0 2.0 1.5 1.0 5.0 4.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5  
1.35 1.44 1.56 1.69 1.82 1.95 2.07 2.18 2.30 2.45 2.59 2.72 2.86 3.05 3.14 3.29 3.44 3.56 3.68 3.79 3.90  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
C
C
E
E
E
E
E
E
E
E
558 587 620 652 684 716 744 768 796 824 848 872 896 920 940 964 988 1008 1028 1048 1068  
6.0 5.0 4.0 2.5 5.5 4.5 4.0 3.5 2.5 2.0 1.5 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 2.0 1.5  
Turns Open  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, D = Standard RPM/  
Large Motor, E = High RPM/Large Motor  
20  
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Table 11 — 50RTP14 Blower Performance Data (cont)  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4 0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
bhp  
Sheave/Motor  
rpm  
1.43 1.54 1.66 1.78 1.90 2.05 2.21 2.37 2.52 2.62 2.73 2.83 2.95 3.13 3.28 3.47 3.65 3.76 3.87 3.97 4.08  
B
B
B
B
A
A
A
A
A
A
A
C
C
E
E
E
E
E
E
E
E
6400  
6600  
6800  
7000  
571 604 636 664 696 724 752 780 808 832 856 880 904 928 948 972 996 1016 1036 1056 1076  
5.5 4.5 3.5 2.5 5.5 4.5 4.0 3.0 2.5 1.5 1.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0  
1.55 1.68 1.83 1.96 2.12 2.24 2.36 2.47 2.61 2.74 3.00 3.01 3.17 3.34 3.48 3.66 3.82 3.94 4.06 4.16 4.28  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
D
E
E
E
E
E
E
E
E
E
E
583 616 648 676 708 736 764 788 816 840 864 888 912 936 956 980 1004 1024 1044 1060 1080  
5.0 4.0 3.0 6.0 5.0 4.0 3.5 3.0 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.0 2.5 2.5 2.0 1.5 1.0  
1.68 1.80 1.94 2.08 2.23 2.37 2.52 2.68 2.79 3.00 3.07 3.10 3.28 3.47 3.63 3.82 3.97 4.11 4.25 4.38 4.52  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
D
D
E
E
E
E
E
E
E
E
E
E
600 628 660 692 720 744 772 800 824 848 872 896 920 944 964 988 1008 1028 1048 1068 1088  
4.5 3.5 2.5 5.5 4.5 4.0 3.0 2.5 2.0 1.0 1.0 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.5 1.0  
1.79 1.97 2.12 2.3 2.4 2.53 2.65 2.76 2.9 3.10 3.17 3.31 3.50 3.66 3.86 4.05 4.18 4.31 4.44 4.57 4.69  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
A
A
A
A
A
A
A
D
E
E
E
E
E
E
E
E
E
E
E
612 644 672 704 728 756 784 808 832 856 880 904 928 948 972 996 1016 1036 1056 1076 1096  
4.0 3.0 6.0 5.0 4.5 3.5 3.0 2.5 1.5 1.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 1.0  
Turns Open  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, D = Standard RPM/  
Large Motor, E = High RPM/Large Motor  
21  
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Table 12 — 50RTP20 Blower Performance Data  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4 0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4 1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
bhp  
Sheave/Motor  
rpm  
1.50 1.60 1.71 1.85 2.01 2.17 2.32 2.42 2.53 2.63 2.75 2.93 3.12 3.27 3.45 3.55 3.64 3.73 3.81 3.88  
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
6,000  
6,200  
6,400  
6,600  
6,800  
7,000  
7,200  
7,400  
7,600  
7,800  
8,000  
8,200  
8,400  
632 664 696 724 752 780 808 832 856 880 904 928 952 972 996 1016 1036 1056 1076 1092  
6.0 5.5 4.5 3.5 2.5 6.0 5.5 4.5 4.0 3.5 2.5 2.0 1.5 1.0 0.0 5.5 5.0 4.5 4.0 4.0  
1.67 1.80 1.93 2.06 2.18 2.30 2.43 2.57 2.70 2.84 2.98 3.14 3.26 3.42 3.56 3.68 3.77 3.88 3.99 4.11  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
648 680 712 740 768 796 820 844 868 892 916 940 960 984 1008 1028 1044 1064 1084 1104  
5.5 5.0 3.5 3.0 2.0 5.5 5.0 4.5 3.5 3.0 2.5 1.5 1.0 0.5 6.0 5.0 5.0 4.5 4.0 3.5  
Turns Open  
bhp  
1.66 1.79 1.90 2.05 2.21 2.37 2.52 2.62 2.73 2.83 2.95 3.13 3.32 3.47 3.65 3.76 3.87 3.97 4.08 4.18 4.33  
Sheave/Motor  
rpm  
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
636 668 696 724 752 780 808 832 856 880 904 928 952 972 996 1016 1036 1056 1076 1096 1116  
Turns Open  
bhp  
6.0  
1.85  
B
5.0  
2
4.5  
3.5  
2.5 6.0  
5.5  
4.5  
4.0  
3.5  
2.5  
2.0  
1.5  
1.0  
0.0 5.5  
5.0  
4.5  
4.0  
3.5  
3.5  
2.13 2.26 2.38 2.50 2.63 2.77 2.90 3.04 3.20 3.37 3.51 3.68 3.85 3.97 4.09 4.18 4.30 4.43 4.59  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
652 684 712 740 768 796 820 844 868 892 916 940 960 984 1008 1028 1048 1064 1084 1104 1124  
5.5 4.5 3.5 3.0 2.0 5.5 5.0 4.5 3.5 3.0 2.5 1.5 1.0 0.5 6.0 5.0 4.5 4.5 4.0 3.5 3.0  
2.00 2.14 2.28 2.43 2.57 2.72 2.82 2.93 3.03 3.15 3.34 3.54 3.70 3.89 4.03 4.16 4.30 4.44 4.57 4.73 4.86  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
C
672 704 728 756 780 808 832 856 880 904 928 952 972 996 1016 1036 1056 1076 1096 1116 1132  
5.0 4.0 3.0 2.5 6.0 5.5 4.5 4.0 3.5 2.5 2.0 1.5 1.0 0.0 5.5 5.0 4.5 4.0 3.5 3.5 3.0  
2.21 2.35 2.47 2.58 2.70 2.83 2.97 3.10 3.24 3.41 3.60 3.76 3.95 4.13 4.26 4.36 4.49 4.62 4.76 5.00 5.07  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
C
E
E
688 716 744 768 796 820 844 868 892 916 940 960 984 1008 1028 1044 1064 1084 1104 1124 1140  
4.5 3.5 2.5 2.0 5.5 5.0 4.5 3.5 3.0 2.5 1.5 1.0 0.5 6.0 5.0 5.0 4.5 4.0 3.5 3.0 3.0  
2.34 2.5 2.66 2.79 2.94 3.07 3.17 3.30 3.43 3.60 3.77 3.92 4.09 4.24 4.39 4.55 4.70 4.85 5.03 5.17 5.36  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
C
C
E
E
E
704 732 760 784 812 836 856 880 904 928 952 972 996 1016 1036 1056 1076 1096 1116 1132 1152  
4.0 3.0 2.0 6.0 5.0 4.5 4.0 3.5 2.5 2.0 1.5 1.0 0.0 5.5 5.0 4.5 4.0 4.0 3.5 3.0 2.5  
2.57 2.69 2.80 2.92 3.08 3.25 3.41 3.57 3.71 3.87 4.04 4.17 4.34 4.48 4.63 4.77 4.91 5.08 5.24 5.44 5.60  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
B
A
A
A
A
A
A
A
A
A
C
C
C
C
C
E
E
E
E
720 748 772 800 824 848 872 896 916 940 964 984 1008 1028 1048 1068 1088 1108 1124 1144 1160  
3.5 2.5 1.5 5.5 5.0 4.0 3.5 3.0 2.5 1.5 1.0 0.5 6.0 5.0 5.0 4.5 4.0 3.5 3.0 2.5 2.5  
2.72 2.88 3.01 3.18 3.31 3.46 3.62 3.77 3.94 4.07 4.24 4.37 4.53 4.69 4.85 5.01 5.17 5.35 5.53 5.68 5.86  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
B
A
A
A
A
A
A
A
A
A
A
C
C
C
E
E
E
E
E
E
736 764 788 816 836 860 884 908 932 952 976 996 1016 1036 1056 1076 1096 1116 1136 1152 1172  
3.0 2.0 6.0 5.0 4.5 4.0 3.0 2.5 2.0 1.5 0.5 0.0 5.5 5.0 4.5 4.5 4.0 3.5 3.0 2.5 2.0  
2.95 3.10 3.23 3.39 3.55 3.72 3.88 4.02 4.20 4.34 4.51 4.66 4.82 4.98 5.14 5.30 5.47 5.61 5.79 5.96 6.10  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
A
A
A
A
A
A
A
A
A
A
C
C
C
E
E
E
E
E
E
E
752 780 804 828 852 876 900 920 944 964 988 1008 1028 1048 1068 1088 1108 1124 1144 1164 1180  
2.5 6.0 5.5 4.5 4.0 3.5 3.0 2.0 1.5 1.0 0.5 6.0 5.0 5.0 4.5 4.0 3.5 3.0 2.5 2.5 2.0  
3.13 3.30 3.46 3.59 3.76 3.92 4.09 4.23 4.40 4.55 4.72 4.90 5.07 5.25 5.42 5.60 5.73 5.89 6.05 6.18 6.34  
Turns Open  
bhp  
Sheave/Motor  
rpm  
B
A
A
A
A
A
A
A
A
A
A
C
E
E
E
E
E
E
E
E
E
768 796 820 840 864 888 912 932 956 976 1000 1020 1040 1060 1080 1100 1116 1136 1156 1172 1192  
2.0 5.5 5.0 4.5 4.0 3.0 2.5 2.0 1.0 0.5 0.0 5.5 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.0 1.5  
3.37 3.53 3.68 3.84 3.99 4.15 4.30 4.48 4.64 4.79 5.00 5.17 5.36 5.54 5.73 5.86 6.02 6.18 6.31 6.47 6.60  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
A
A
E
E
E
E
E
E
E
E
E
E
E
784 808 832 856 880 904 924 948 968 988 1012 1032 1052 1072 1092 1108 1128 1148 1164 1184 1200  
Turns Open  
bhp  
6.0  
5.5  
4.5  
4.0  
3.5 2.5  
2.0  
1.5  
1.0  
0.5  
5.5  
5.0  
4.5  
4.5  
4.0 3.5  
3.0  
2.5  
2.5  
2.0  
1.5  
3.52 3.70 3.88 4.07 4.22 4.40 4.54 4.71 4.86 5.00 5.20 5.40 5.60 5.80 6.00 6.16 6.32 6.45 6.61 6.74  
Sheave/Motor  
rpm  
A
A
A
A
A
A
A
A
A
D
E
E
E
E
E
E
E
E
E
E
800 824 848 872 892 916 936 960 980 1000 1020 1040 1060 1080 1100 1120 1140 1156 1176 1192  
5.5 5.0 4.0 3.5 3.0 2.5 2.0 1.0 0.5 0.0 5.5 5.0 4.5 4.0 3.5 3.0 3.0 2.5 2.0 1.5  
Turns Open  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, D = Standard RPM/  
Large Motor, E = High RPM/Large Motor  
22  
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Table 12 — 50RTP20 Blower Performance Data (cont)  
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(cfm)  
ESP  
0.0  
0.1  
0.2  
0.3  
0.4 0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
bhp  
Sheave/Motor  
rpm  
3.80 3.97 4.11 4.28 4.46 4.62 4.78 5.00 5.14 5.32 5.52 5.72 5.92 6.12 6.30 6.46 6.58 6.74 6.87  
A
A
A
A
A
A
A
D
D
E
E
E
E
E
E
E
E
E
E
8,600  
8,800  
9,000  
9,200  
9,400  
9,600  
9,800  
10,000  
816 840 860 884 908 928 948 972 992 1012 1032 1052 1072 1092 1112 1132 1148 1168 1184  
5.0 4.5 4.0 3.0 2.5 2.0 1.5 1.0 0.0 5.5 5.0 4.5 4.5 4.0 3.5 3.0 2.5 2.0 2.0  
4.06 4.25 4.41 4.60 4.76 5.00 5.11 5.27 5.44 5.64 5.84 6.04 6.24 6.43 6.56 6.72 6.88 7.01 7.17  
Turns Open  
bhp  
Sheave/Motor  
rpm  
A
A
A
A
A
D
D
D
D
E
E
E
E
E
E
E
E
E
E
832 856 876 900 920 944 964 984 1004 1024 1044 1064 1084 1104 1120 1140 1160 1176 1196  
4.5 4.0 3.5 3.0 2.0 1.5 1.0 0.5 0.0 5.5 5.0 4.5 4.0 3.5 3.0 3.0 2.5 2.0  
4.30 4.50 4.66 4.86 5.04 5.21 5.39 5.56 5.76 5.96 6.16 6.36 6.56 6.71 6.89 7.07 7.21 7.39  
Turns Open  
bhp  
1.5  
Sheave/Motor  
rpm  
A
A
A
A
D
D
D
D
E
E
E
E
E
E
E
E
E
E
848 872 892 916 936 956 976 996 1016 1036 1056 1076 1096 1112 1132 1152 1168 1188  
4.0 3.5 3.0 2.5 2.0 1.0 0.5 0.0 5.5 5.0 4.5 4.0 4.0 3.5 3.0 2.5  
4.62 4.78 5.00 5.15 5.32 5.48 5.65 5.84 6.04 6.24 6.44 6.64 6.81 7.02 7.20 7.41  
Turns Open  
bhp  
2.0  
2.0  
Sheave/Motor  
rpm  
A
A
D
D
D
D
D
E
E
E
E
E
E
E
E
E
868 888 912 932 952 972 992 1012 1032 1052 1072 1092 1108 1128 1144 1164  
3.5 3.0 2.5 2.0 1.5 1.0 0.0 5.5 5.0 4.5 4.5 4.0 3.5 3.0  
4.87 5.07 5.25 5.42 5.60 5.77 5.96 6.16 6.36 6.56 6.72 6.92 7.15 7.33  
Turns Open  
bhp  
2.5  
2.5  
Sheave/Motor  
rpm  
A
D
D
D
D
D
D
E
E
E
E
E
E
E
884 908 928 948 968 988 1008 1028 1048 1068 1084 1104 1124 1140  
Turns Open  
bhp  
3.0  
2.5  
2.0  
1.5  
1.0 0.5  
0.0  
5.0  
5.0  
4.5  
4.0  
3.5  
3.0  
3.0  
5.23 5.39 5.55 5.71 5.87 6.04 6.24 6.44 6.64 6.80 7.00 7.24 7.43  
Sheave/Motor  
rpm  
D
D
D
D
D
D
E
E
E
E
E
E
E
904 924 944 964 984 1004 1024 1044 1064 1080 1100 1120 1136  
Turns Open  
bhp  
2.5  
2.0  
1.5  
1.0  
0.5 0.0  
5.5  
5.0  
4.5  
4.0  
3.5  
3.0  
3.0  
5.50 5.67 5.85 6.02 6.20 6.40 6.60 6.80 6.96 7.16 7.39  
Sheave/Motor  
rpm  
D
D
D
D
D
E
E
E
E
E
E
920 940 960 980 1000 1020 1040 1060 1076 1096 1116  
Turns Open  
bhp  
2.0  
1.5  
1.0  
0.5  
0.0 5.5  
5.0  
4.5  
4.0  
4.0  
3.5  
5.85 6.00 6.18 6.36 6.56 6.76 6.96 7.16 7.32  
Sheave/Motor  
rpm  
D
D
D
D
E
E
E
E
E
940 956 976 996 1016 1036 1056 1076 1092  
1.5 1.0 0.5 0.0 5.5 5.0 4.5 4.0 4.0  
Turns Open  
LEGEND  
bhp — Brake Horsepower  
ESP — External Static Pressure  
2. Unit shipped with standard drive package with drive sheave 2.5  
turns open unless otherwise requested. Field adjustment may  
be required for specified CFM.  
3. ISO/AHRI rating point with standard drive package and drive  
sheave open 3.0 turns at .30 ESP.  
NOTES:  
4. Performance data does not include drive losses and is based  
on sea level conditions.  
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,  
rated at 208 volts for 208-230 volt units.  
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard  
Motor, C = High RPM/Standard Motor, D = Standard RPM/  
Large Motor, E = High RPM/Large Motor  
23  
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Complete C  
a50-8553  
LEGEND  
BC  
Blower Contactor  
Field Line Voltage Wiring  
Field Low Voltage Wiring  
Printed Circuit Trace  
Optional Wiring  
Ground  
CB  
Circuit Breaker  
CC  
CO  
ECR  
FP1  
FP2  
GFI  
HP  
JW3  
LAR  
LOC  
MAS  
OAT  
PDB  
RVS  
TB  
Compressor Contactor  
Sensor, Condensate Overflow  
Enthalpy Control Relay  
Sensor, Water Coil Freeze Protection  
Sensor, Air Coil Freeze Protection  
Ground Fault Interrupter  
High-Pressure Switch  
Clippable Field Selection Jumper  
Low Ambient Relay  
Loss of Charge Pressure Switch  
Mixed Air Sensor  
Solenoid Coil  
Relay Contacts - N.O.  
Relay Contacts - N.C.  
Temperature Switch  
Switch - Low Pressure  
Switch - High Pressure  
Wire Nut  
Relay/Contactor Coil  
Thermistor  
Condensate Pan  
Circuit Breaker  
Outdoor Air Thermostat  
Power Distribution Block  
Reversing Valve Solenoid  
Terminal Block  
TRANS — Transformer  
Factory Line Voltage Wiring  
Factory Low Voltage Wiring  
NOTES:  
5. Typical heat pump thermostat wiring shown. Refer to thermostat  
installation instructions for wiring to the unit. Thermostat wiring  
must be “Class 1” and voltage rating equal to or greater than unit  
supply voltage.  
1. Compressor and blower motor thermally protected internally.  
2. All wiring to the unit must comply with NEC (National Electrical  
Code) and local codes.  
3. 208/230-v transformers will be connected for 208-v operation. For  
230-v operation, disconnect RED lead at L1, and attach ORG  
lead to L1. Close open end of RED lead.  
4. FPI thermistor provides freeze protection for WATER. When using  
ANTIFREEZE solutions, cut JW3 jumper.  
6. Factory cut JW1 jumper and dry contact will be available between  
AL1 and AL2.  
7. Transformer secondary ground via Complete C board standoffs  
and screws to control box. (Ground available from top two stand-  
offs as shown.)  
Fig. 6 — 50RTP03-06 Units — Typical Control Wiring with Complete C Control  
24  
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a50-8554  
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a50-8555  
Complete C  
Complete C  
50RTP03-06 UNITS  
Complete C 1  
Complete C 2  
Complete C 2  
Complete C 1  
50RTP08-20 UNITS  
Fig. 8 — Typical Control Wiring with Complete C and LON Controller  
26  
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Deluxe D  
a50-8556  
LEGEND  
BC  
Blower Contactor  
Field Line Voltage Wiring  
Field Low Voltage Wiring  
Printed Circuit Trace  
Optional Wiring  
Ground  
CB  
Circuit Breaker  
CC  
Compressor Contactor  
Sensor, Condensate Overflow  
Enthalpy Control Relay  
Sensor, Water Coil Freeze Protection  
Sensor, Air Coil Freeze Protection  
Ground Fault Interrupter  
High-Pressure Switch  
Solenoid Coil  
CO  
ECR  
FP1  
FP2  
GFI  
HP  
Relay Contacts - N.O.  
Relay Contacts - N.C.  
Temperature Switch  
Switch - Low Pressure  
Switch - High Pressure  
Wire Nut  
Relay/Contactor Coil  
Thermistor  
HPWR — High Pressure Water Relay  
HPWS — High Pressure Water Switch  
Condensate Pan  
Circuit Breaker  
JW3  
LAR  
LOC  
MAR  
MO  
Clippable Field Selection Jumper  
Low Ambient Relay  
Loss of Charge Pressure Switch  
Mixed Air Relay  
Motorized Outside Air Damper  
Motorized Valve  
MV  
OAT  
PDB  
RVS  
Outdoor Air Thermostat  
Power Distribution Block  
Reversing Valve Solenoid  
TRANS — Transformer  
Factory Line Voltage Wiring  
Factory Low Voltage Wiring  
NOTES:  
must be “Class 1” and voltage rating equal to or greater than unit  
supply voltage.  
6. Factory cut JW1 jumper and dry contact will be available between  
AL1 and AL2.  
1. Compressor and blower motor thermally protected internally.  
2. All wiring to the unit must comply with NEC (National Electrical  
Code) and local codes.  
3. 208/230-v transformers will be connected for 208-v operation. For  
230-v operation, disconnect RED lead at L1, and attach ORG  
lead to L1. Close open end of RED lead.  
7. Transformer secondary ground via Complete C board standoffs  
and screws to control box. (Ground available from top two stand-  
offs as shown.)  
4. FPI thermistor provides freeze protection for WATER. When using  
ANTIFREEZE solutions, cut JW3 jumper.  
8. Suffix 1 designates association with lead compressor. Suffix 2  
designates association with lag compressor.  
5. Typical heat pump thermostat wiring shown. Refer to thermostat  
installation instructions for wiring to the unit. Thermostat wiring  
9. For water valve option, DIP switch 2.1 ON, 2.2 OFF, 2.3 ON.  
Fig. 9 — 50RTP03-06 Units — Typical Control Wiring with Deluxe D Controls  
27  
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a50-8557  
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a50-8558  
Deluxe D  
Deluxe D  
SIZES 03-06  
Deluxe D 1 Deluxe D 2  
SIZES 08-20  
Fig. 11 — Typical Control Wiring with Deluxe D and LON Controller  
29  
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COMPLETE  
C
CONTROL  
PREMIER  
LINK  
PWR  
Y
HS1/EXH/RVS  
W
CR  
CR  
O
G
R
C
LEGEND  
CR — Control Relay  
CMP1  
FAN  
LWT — Leaving Water Temperature Sensor  
SAT — Supply Air Temperature Sensor  
SPT — Space Temperature Sensor  
AL1  
AL2  
A
NOTE: Reversing valve is on in Cooling  
mode.  
J5  
J6  
J4  
L
W
T
S
P
T
S
A
T
Fig. 12 — Premierlink™ Controller Applications Wiring with Complete C Control  
PREMIER  
LINK  
PWR  
DELUXE  
D
CONTROL  
Y1  
Y2  
HS2  
HS1  
W1  
O/W2  
G
LEGEND  
CMP2  
CMP1  
FAN  
LWT — Leaving Water Temperature Sensor  
SAT — Supply Air Temperature Sensor  
SPT — Space Temperature Sensor  
NOTE: Reversing valve is on in Cooling  
mode.  
R
C
AL1  
J5  
J6  
J4  
L
W
T
S
P
T
S
A
T
Fig. 13 — Premierlink Controller Applications Wiring with Deluxe D Control  
30  
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A50-8355  
31  
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A50-8354  
32  
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D B  
8
7
6
4
5 3  
1
2
1
D
L E  
1
2
4
3
1
2
G n d  
n e R t +  
R n e  
+ 1 2  
N
E
E E G R  
W H I T  
- t  
B L A C K  
R E  
V
D
To WSHP Controller  
Rnet Terminals (J13)  
33  
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Step 8 — Connect Low Voltage Wiring  
THERMOSTAT CONNECTIONS — The thermostat should  
be wired directly to the Aquazone™ control board. See  
Fig. 17-19.  
CompleteC 1 CompleteC 2  
THERMOSTAT  
Y
Y
Y1  
Compressor-Stage 1  
Compressor-Stage 2  
Reversing Valve  
Fan  
WATER FREEZE PROTECTION — The Aquazone control  
allows the field selection of source fluid freeze protection  
points through jumpers. The factory setting of jumper JW3  
(FP1) is set for water at 30 F. In earth loop applications, jumper  
JW3 should be clipped to change the setting to 13 F when  
using antifreeze in colder earth loop applications. See Fig. 20.  
Y2  
O
G
R
O
G
R
C
O
G
R
24Vac Hot  
C
24Vac Com  
C
AL  
AL  
AL  
AIR COIL FREEZE PROTECTION — The air coil freeze  
protection jumper JW2 (FP2) is factory set for 30 F and should  
not need adjusting, unless using anti-freeze.  
Fig. 18 — Thermostat Wiring to Complete C Board  
ACCESSORY CONNECTIONS — Terminal labeled A on  
the control is provided to control accessory devices such as  
water valves, electronic air cleaners, humidifiers, etc. This sig-  
nal operates with the compressor terminal. See Fig. 21. Refer  
to the specific unit wiring schematic for details.  
NOTE: The A terminal should only be used with 24 volt  
signals — not line voltage signals.  
WATER SOLENOID VALVES — Water solenoid valves may  
be used on primary secondary pump and ground water installa-  
tions. A typical well water control valve wiring which can  
limit waste water in a lockout condition is shown in Fig. 21. A  
slow closing valve may be required to prevent water hammer.  
When using a slow closing valve, special wiring conditions  
need to be considered. The valve takes approximately 60 sec-  
onds to open (very little water will flow before 45 seconds) and  
it activates the compressor only after the valve is completely  
opened by closing its end switch. When wired as shown, the  
valve will have the following operating characteristics:  
Deluxe D 1  
Deluxe D 2  
THERMOSTAT  
COM 2  
COM 2  
Y
Y1  
Y1  
Y2  
O
Compressor-Stage 1  
Y2  
O
G
R
Compressor-Stage 2  
Reversing Valve  
Fan  
O
G
R
G
24Vac Hot  
R
C
C
24Vac Com  
C
AL  
AL1  
AL1  
Fig. 19 — Thermostat Wiring to Deluxe D Board  
1. Remain open during a lockout.  
2. Draw approximately 25 to 35 VA through the “Y” signal  
of the thermostat.  
IMPORTANT: This can overheat the anticipators of  
electromechanical thermostats. Only use relay based  
electronic thermostats.  
Capacitor  
Circ Brkr  
Grnd  
Contactor-CC  
L2  
L1  
AQUAZONE CONTROL (C Control Shown)  
BR  
Fig. 20 — Typical Aquazone Control Board  
Jumper Locations  
Transformer  
Aquazone “C”  
TERMINAL STRIP P2  
See Note  
Low Voltage  
Connector  
CB  
THERMOSTAT  
WIRED DIRECTLY  
TO CONTROL  
BOARD  
C
TYPICAL  
WATER  
VALVE  
24 VAC  
A
NOTE: Low voltage connector may be removed for easy installation.  
Fig. 17 — Low Voltage Field Wiring  
Fig. 21 — Typical D Control Accessory Wiring  
34  
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PRE-START-UP  
IMPORTANT: Jumpers and DIP switches should only  
be clipped when power to control board has been turned  
off.  
System Checkout — When the installation is complete  
and the system is cleaned and flushed, follow the System  
Checkout procedure outlined below.  
1. Voltage: Ensure that the voltage is within the utilization  
Complete C Control Jumper Settings (See  
Fig. 6 and 7)  
WATER COIL FREEZE PROTECTION (FP1) LIMIT  
SETTING — Select jumper 3, (JW3-FP1 Low Temp) to  
choose FP1 limit of 10 F or 30 F. To select 30 F as the limit,  
DO NOT clip the jumper. To select 10 F as the limit, clip the  
jumper.  
AIR COIL FREEZE PROTECTION (FP2) LIMIT SET-  
TING — Select jumper 2 (JW2-FP2 Low Temp) to choose  
FP2 limit of 10 F or 30 F. To select 30 F as the limit, DO NOT  
clip the jumper. To select 10 F as the limit, clip the jumper.  
ALARM RELAY SETTING — Select jumper 1 (JW1-AL2  
Dry) for connecting alarm relay terminal (AL2) to 24 vac (R)  
or to remain as a dry contact (no connection). To connect AL2  
to R, do not clip the jumper. To set as dry contact, clip the  
jumper.  
range specifications of the unit compressor and fan motor.  
2. System Water Temperature: Ensure that the system  
water temperature is within an acceptable range to facili-  
tate start-up. (When conducting this check, also verify  
proper heating and cooling set points.)  
3. System Water pH: Verify system water acidity  
(pH = 7.5 or 8.5). Proper pH promotes the longevity of  
hoses and heat exchangers.  
4. System Flushing: Properly clean and flush the system  
periodically. Ensure that all supply and return hoses are  
connected end-to-end to facilitate system flushing and  
prevent fouling of the heat exchanger by system water.  
Water used in the system must be potable and should not  
contain dirt, piping slag, and chemical cleaning agents.  
5. Closed-Type Cooling Tower or Open Tower with Heat  
Exchanger: Check equipment for proper temperature set  
points and operation.  
Complete C Control DIP Switches — The Com-  
plete C control has 1 DIP switch block with two switches. See  
Fig. 6 and 7.  
PERFORMANCE MONITOR (PM) — DIP switch 1 will  
enable or disable this feature. To enable the PM, set the switch  
to ON. To disable the PM, set the switch to OFF.  
STAGE 2 — DIP switch 2 will enable or disable compressor  
delay. Set DIP switch to OFF for stage 2 in which the compres-  
sor will have a 3-second delay before energizing.  
6. Verify Balanced Water Flow Rate to Heat Pump.  
7. Standby Pump: Verify that the standby pump is properly  
installed and in operating condition.  
8. Access Panels: Assure that all access panels in the filter  
and fan section are securely closed.  
9. Air Dampers: Assure that all air dampers are properly  
set.  
10. System Controls: To ensure that no catastrophic system  
failures occur, verify that system controls are functioning  
and that the sequencing is correct.  
11. Freeze Protection for Water System: Verify that freeze  
protection is provided for the building loop water system  
when outdoor design conditions require it. Inadequate  
freeze protection can lead to expensive tower and system  
piping repairs.  
NOTE: The alarm relay will not cycle during Test mode if  
switch is set to OFF, stage 2.  
Deluxe D Control Jumper Settings (See Fig. 9  
and 10)  
WATER COIL FREEZE PROTECTION (FP1) LIMIT  
SETTING — Select jumper 3, (JW3-FP1 Low Temp) to  
choose FP1 limit of 10 F or 30 F. To select 30 F as the limit, DO  
NOT clip the jumper. To select 10 F as the limit, clip the jumper.  
AIR COIL FREEZE PROTECTION (FP2) LIMIT SET-  
TING — Select jumper 2 (JW2-FP2 Low Temp) to choose  
FP2 limit of 10 F or 30 F. To select 30 F as the limit, DO NOT  
clip the jumper. To select 10 F as the limit (for anti-freeze sys-  
tems), clip the jumper.  
ALARM RELAY SETTING — Select jumper 4 (JW4-AL2  
Dry) for connecting alarm relay terminal (AL2) to 24 vac (R)  
or to remain as a dry contact (no connection). To connect AL2  
to R, do not clip the jumper. To set as dry contact, clip the  
jumper.  
12. System Water Loop: Verify that all air is bled from the  
system. Air in the system impedes unit operation and  
causes corrosion in the system piping.  
13. Unit Filters: To avoid system damage, check that the unit  
filter is clean.  
14. Unit Fans: Manually rotate fans to assure free rotation.  
Ensure that fans are properly secured to the fan shaft. Do  
not oil fan motors on start-up since they are lubricated at  
the factory.  
15. System Control Center: Examine the system control  
and alarm panel for proper installation and operation to  
ensure control of the temperature set-points for operation  
of the system’s heat rejector and boiler (when used).  
LOW PRESSURE SETTING — The Deluxe D control can  
be configured for Low Pressure Setting (LP). Select jumper 1  
(JW1-LP Norm Open) for choosing between low pressure in-  
put normally opened or closed. To configure for normally  
closed operation, do not clip the jumper. To configure for nor-  
mally open operation, clip the jumper.  
16. Miscellaneous: Note any questionable aspects of the  
installation.  
17. Air Coil: To obtain maximum performance, the air coil  
should be cleaned before starting the unit. A ten percent  
solution of dishwasher detergent and water is recom-  
mended for both sides of the coil. Rinse thoroughly with  
water.  
Deluxe D Control DIP Switches — The Deluxe D  
control has 2 DIP switch blocks. Each DIP switch block has 8  
switches and is labeled either S1 or S2 on the circuit board.  
DIP SWITCH BLOCK 1 (S1) — This set of switches offers  
the following options for Deluxe D control configuration:  
FIELD SELECTABLE INPUTS  
Performance Monitor (PM) — Set switch 1 to enable or dis-  
able performance monitor. To enable the PM, set the switch to  
ON. To disable the PM, set the switch to OFF.  
Compressor Relay Staging Operation — Switch 2 will en-  
able or disable compressor relay staging operation. The com-  
pressor relay can be set to turn on with stage 1 or stage 2 call  
Jumpers and DIP (dual in-line package) switches on the  
control board are used to customize unit operation and can be  
configured in the field.  
35  
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from the thermostat. This setting is used with dual stage units  
(units with 2 compressors and 2 Deluxe D controls) or in mas-  
ter/slave applications. In master/slave applications, each com-  
pressor and fan will stage according to its switch 2 setting. If  
switch is set to stage 2, the compressor will have a 3-second de-  
lay before energizing during stage 2 demand.  
Table 13 — DIP Switch Block S2 —  
Accessory 1 Relay Options  
DIP SWITCH POSITION  
ACCESSORY 1  
RELAY OPTIONS  
1
2
3
Cycle with Fan  
Digital NSB  
Water Valve — Slow Opening  
OAD  
On  
Off  
On  
On  
On  
On  
Off  
On  
On  
On  
On  
Off  
NOTE: If DIP switch is set for stage 2, the alarm relay will not  
cycle during Test mode.  
Heating/Cooling Thermostat Type — Switch 3 provides selec-  
tion of thermostat type. Heat pump or heat/cool thermostats  
can be selected. Select OFF for heat/cool thermostats. When in  
heat/cool mode, Y1 is used for cooling stage 1, Y2 is used for  
cooling stage 2, W1 is used for heating stage 1 and O/W2 is  
used for heating stage 2. Select ON for heat pump applications.  
In heat pump mode, Y1 used is for compressor stage 1, Y2 is  
used for compressor stage 2, W1 is used for heating stage 3 or  
emergency heat, and O/W2 is used for RV (heating or cooling)  
depending upon switch 4 setting.  
O/B Thermostat Type — Switch 4 provides selection for heat  
pump O/B thermostats. O is cooling output. B is heating out-  
put. Select ON for heat pumps with O output. Select OFF for  
heat pumps with B output.  
LEGEND  
NSB — Night Setback  
OAD — Outside Air Damper  
NOTE: All other DIP switch combinations are invalid.  
Table 14 — DIP Switch Block S2 —  
Accessory 2 Relay Options  
DIP SWITCH POSITION  
ACCESSORY 2  
RELAY OPTIONS  
4
5
6
Cycle with Fan  
Digital NSB  
Water Valve — Slow Opening  
OAD  
On  
Off  
On  
On  
On  
On  
Off  
On  
On  
On  
On  
Off  
Dehumidification Fan Mode — Switch 5 provides selection of  
normal or dehumidification fan mode. Select OFF for dehu-  
midification mode. The fan speed relay will remain OFF dur-  
ing cooling stage 2. Select ON for normal mode. The fan speed  
relay will turn on during cooling stage 2 in normal mode.  
LEGEND  
NSB — Night Setback  
OAD — Outside Air Damper  
NOTE: All other switch combinations are invalid.  
Switch 6 — Not used.  
Boilerless Operation — Switch 7 provides selection of boil-  
erless operation and works in conjunction with switch 8. In  
boilerless operation mode, only the compressor is used for  
heating when FP1 is above the boilerless changeover tempera-  
ture set by switch 8 below. Select ON for normal operation or  
select OFF for boilerless operation.  
Boilerless Changeover Temperature — Switch 8 on S1 pro-  
vides selection of boilerless changeover temperature set point.  
Select OFF for set point of 50 F or select ON for set point  
of 40 F.  
If switch 8 is set for 50 F, then the compressor will be used  
for heating as long as the FP1 is above 50 F. The compressor  
will not be used for heating when the FP1 is below 50 F and the  
compressor will operates in emergency heat mode, staging on  
EH1 and EH2 to provide heat. If a thermal switch is being used  
instead of the FP1 thermistor, only the compressor will be used  
for heating mode when the FP1 terminals are closed. If the FP1  
terminals are open, the compressor is not used and the control  
goes into emergency heat mode.  
Deluxe D Control Accessory Relay Configura-  
tions — The following accessory relay settings are applica-  
ble for both Deluxe D controls only:  
CYCLE WITH FAN — In this configuration, the relay will be  
ON any time the Fan Enable relay is on.  
CYCLE WITH COMPRESSOR — In this configuration, the  
relay will be ON any time the Compressor relay is on.  
DIGITAL NIGHT SET BACK (NSB) — In this configura-  
tion, the relay will be ON if the NSB input is connected to  
ground C.  
NOTE: If there are no relays configured for digital NSB, then  
the NSB and OVR inputs are automatically configured for  
mechanical operation.  
MECHANICAL NIGHT SET BACK — When NSB input is  
connected to ground C, all thermostat inputs are ignored. A  
thermostat set back heating call will then be connected to the  
OVR input. If OVR input becomes active, then the Deluxe D  
control will enter Night Low Limit (NLL) staged heating  
mode. The NLL staged heating mode will then provide heating  
during the NSB period.  
DIP SWITCH BLOCK 2 (S2) — This set of DIP switches is  
used to configure accessory relay options.  
Switches 1 to 3 — These DIP switches provide selection  
of Accessory 1 relay options. See Table 13 for DIP switch  
combinations.  
Water Valve (Slow Opening) — If relay is config-  
ured for Water Valve (slow opening), the relay will start 60 sec-  
onds prior to starting compressor relay.  
Switches 4 to 6 — These DIP switches provide selection  
of Accessory 2 relay options. See Table 14 for DIP switch  
combinations.  
Auto Dehumidification Mode or High Fan Mode — Switch  
7 provides selection of auto dehumidification fan mode or high  
fan mode. In auto dehumidification fan mode the fan speed re-  
lay will remain off during cooling stage 2 if terminal H is ac-  
tive. In high fan mode, the fan enable and fan speed relays will  
turn on when terminal H is active. Set the switch to ON for  
auto dehumidification fan mode or to OFF for high fan mode.  
Outside-Air Damper (OAD) — If relay is configured  
for OAD, the relay will normally be ON any time the Fan  
Enable relay is energized. The relay will not start for 30 min-  
utes following a return to normal mode from NSB, when NSB  
is no longer connected to ground C. After 30 minutes, the relay  
will start if the Fan Enable is set to ON.  
CAUTION  
To avoid equipment damage, DO NOT leave system filled  
in a building without heat during the winter unless anti-  
freeze is added to system water. Condenser coils never  
fully drain by themselves and will freeze unless winterized  
with antifreeze.  
Switch 8 — Not used.  
36  
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1. Connect service gages to suction and discharge pressure  
fittings.  
2. Energize the compressor.  
3. The suction pressure should drop and the discharge  
pressure should rise, as is normal on any start-up.  
START-UP  
Use the procedure outlined below to initiate proper unit  
start-up.  
NOTE: This equipment is designed for indoor installation only.  
Operating Limits  
If the suction pressure does not drop and the discharge  
pressure does not rise to normal levels:  
1. Turn off power to the unit. Install disconnect tag.  
2. Reverse any two of the unit power leads.  
3. Reapply power to the unit and verify pressures are correct.  
The suction and discharge pressure levels should now move  
to their normal start-up levels.  
When the compressor is rotating in the wrong direction, the  
unit makes an elevated level of noise and does not provide  
cooling.  
ENVIRONMENT — This equipment is designed for outdoor  
installation ONLY. Extreme variations in temperature, humidi-  
ty and corrosive water or air will adversely affect the unit per-  
formance, reliability and service life.  
POWER SUPPLY — A voltage variation of ± 10% of name-  
plate utilization voltage is acceptable.  
UNIT STARTING CONDITIONS — See Table 15 for unit  
starting conditions.  
Table 15 — Starting Conditions — 50RTP Units  
After a few minutes of reverse operation, the scroll com-  
pressor internal overload protection will open, thus activating  
the unit lockout. This requires a manual reset. To reset, turn the  
thermostat on and then off.  
NOTE: There is a 5-minute time delay before the compressor  
will start.  
AIR LIMITS  
COOLING  
40 F  
110 F  
HEATING  
40 F  
80 F  
Minimum Entering Air  
Maximum Entering Air (db)  
WATER LIMITS  
Minimum Entering Fluid  
Maximum Entering Fluid  
40 F  
120 F  
20 F  
90 F  
Unit Start-Up Cooling Mode  
1. Adjust the unit thermostat to the warmest position.  
Slowly reduce the thermostat position until the compres-  
sor activates.  
2. Check for cool air delivery at unit grille a few minutes  
after the unit has begun to operate.  
LEGEND  
db — Dry Bulb  
NOTE: These starting conditions are not normal or continuous  
operating conditions. It is assumed that such a start-up is for  
the purpose of bringing the building space up to occupancy  
temperature. See Table 16 for operating limits.  
3. Verify that the compressor is on and that the water flow  
rate is correct by measuring pressure drop through the  
heat exchanger using P/T plugs. Check the elevation and  
cleanliness of the condensate lines; any dripping could be  
a sign of a blocked line. Be sure the condensate trap in-  
cludes a water seal.  
WARNING  
When the disconnect switch is closed, high voltage is pres-  
ent in some areas of the electrical panel. Exercise caution  
when working with the energized equipment.  
4. Check the temperature of both supply and discharge  
water. If temperature is within range, proceed. If tempera-  
ture is outside the range, check the cooling refrigerant  
pressures.  
5. Air temperature drop across the coil should be checked  
when compressor is operating. Air temperature drop  
should be between 15 and 25 F.  
1. Restore power to system.  
2. Turn thermostat fan position to ON. Blower should start.  
3. Balance airflow at registers.  
4. Adjust all valves to the full open position and turn on the  
line power to all heat pump units.  
5. Operate unit in the cooling cycle. Room temperature  
should be approximately 70 to 75 F dry bulb. Loop water  
temperature entering the heat pumps should be between  
60 and 110 F.  
NOTE: Three factors determine the operating limits of a unit:  
(1) entering air temperature, (2) water temperature and (3)  
ambient temperature. Whenever any of these factors are at a  
minimum or maximum level, the other two factors must be at a  
normal level to ensure proper unit operation. See Table 15.  
Unit Start-Up Heating Mode  
NOTE: Operate the unit in heating cycle after checking the  
cooling cycle. Allow five minutes between tests for the pres-  
sure or reversing valve to equalize.  
1. Turn thermostat to lowest setting and set thermostat  
switch to HEAT position.  
2. Slowly turn the thermostat to a higher temperature until  
the compressor activates.  
3. Check for warm air delivery at the unit grille within a few  
minutes after the unit has begun to operate.  
4. Check the temperature of both supply and discharge  
water. If temperature is within range, proceed. If tempera-  
ture is outside the range, check the heating refrigerant  
pressures.  
5. Once the unit has begun to run, check for warm air deliv-  
ery at the unit grille.  
6. Air temperature rise across the coil should be checked  
when compressor is operating. Air temperature rise  
should be between 20 and 30 F after 15 minutes at load.  
Table 16 — Operating Limits — 50RTP Units  
AIR LIMITS  
COOLING  
60 F  
HEATING  
50 F  
80 F  
Minimum Entering Air  
Maximum Entering Air (db)  
WATER LIMITS  
Minimum Entering Fluid  
Maximum Entering Fluid  
90 F  
40 F  
120 F  
20 F  
90 F  
LEGEND  
db — Dry Bulb  
Scroll Compressor Rotation — It is important to be  
certain compressor is rotating in the proper direction. To  
determine whether or not compressor is rotating in the proper  
direction, perform the following procedure.  
7. Check for vibration, noise and water leaks.  
37  
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b. To program the beginning and end dates, scroll  
down to the beginning month and press the enter  
key. The softkeys (INCR and DECR) will activate  
to increment the month in either direction, Jan,  
Feb, March, etc.  
c. Use number keys to select the day of month and  
year.  
Unit Start-Up with WSHP Open Controls —  
The WSHP Open is a multi-protocol (default BACnet*) con-  
troller with extensive features, flexible options and powerful  
capabilities. The unit comes from the factory pre-programmed  
and needs minimal set up to function in a BAS (Building  
Automation System) system or provide additional capabilities  
to Carrier's WSHP product line. Most settings on the controller  
have factory defaults set for ease of installation. There are a  
few settings that must be configured in the field and several  
settings that can be adjusted if required by unique job condi-  
tions. Refer to Appendix A — WSHP Open Screen Configura-  
d. Push the OK softkey to finalize the data.  
6. To view configuration settings:  
a. Select the Config softkey.  
6
tion. In order to configure the unit, a BACview display is  
b. Select the Service Config softkey. Scroll through  
the factory settings by using the up and down  
arrow keys. See below for factory settings.  
required. See Fig. 22.  
NOTE: If the WSHP Open control has lost its programming,  
all display pixels will be displayed on the SPT sensor. See the  
WSHP Third Party Integration Guide.  
Only the following settings will need to be  
checked.  
When the unit is OFF, the SPT sensor will indicate OFF.  
When power is applied, the SPT sensor will indicate tempera-  
ture in the space at 78 F.  
• # of Fan Speeds — This should be set to "1" for  
units with PSC motors and set to "3" for units with  
ECM motors.  
• Compressor Stages — This should be set to "1."  
• Factory Dehumidification Reheat Coil — This  
should be set to "none" unless the modulating hot  
water reheat option is supplied in the unit, then set  
to "installed."  
To start up a unit with WSHP Open controls:  
6
1. To plug in the BACview handheld display into a SPT  
sensor, point the two ears on the connector up and tilt the  
bottom of the plug toward you. Insert the plug up into the  
SPT sensor while pushing the bottom of the plug away  
from you.  
The condenser water limit needs to be verified  
depending on design parameters and application,  
whether geothermal or boiler/tower.  
6
2. BACview should respond with "Establishing Connec-  
tion." The Home screen will then appear on the display  
showing operating mode and space temperature. Press  
any button to continue.  
7. To view unit configuration settings:  
a. Select the Unit Configuration softkey, then select  
Unit.  
See Appendix A — WSHP Open Screen Configuration  
for the hierarchal structure of the WSHP Open controller.  
All functions of the controller can be set from the Home  
screen.  
b. Scroll through the unit settings by using the up and  
down arrow keys. Unit settings include:  
• Fan Mode: Default Continuous  
• Fan Delay:  
3. When the Login is requested, type 1111 and push the OK  
softkey. The Logout will then be displayed to indicate the  
password was accepted.  
• Minimum SAT Cooling: Default 50 F  
• Maximum SAT Heating: Default 110 F  
• Filter Service Alarm: Must be set from 0 to 9999 hr  
4. To set the Clock if it is not already displayed:  
8. To set local schedules:  
a. Select System Settings from the Home screen, then  
press Clockset.  
b. Scroll to hour, minute and second using the arrow  
keys. Use the number keypad to set actual time.  
c. Scroll to day, month and year using arrow keys.  
Use number keypad to set date.  
a. Select the Schedule softkey from the Configuration  
screen, then press enter.  
b. Select Weekly, then press enter (7 schedules  
available).  
c. Select day and press enter.  
d. Press enter again and select ADD or DEL (DECR  
or INCR) set schedule.  
5. To set Daylight Savings Time (DST):  
a. Push the DST softkey. The display will indicate  
02:00:060 which is equal to 2:00AM.  
a50-8444  
6
Fig. 22 — BACview Display Interface  
*Sponsored by ASHRAE (American Society of Heating, Refrigerating,  
and Air Conditioning Engineers).  
38  
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e. Enter ON/OFF time, then press continue.  
f. Press OK to apply and save to a particular day of  
the week.  
minimum of eight to 24 hours. At the end of this period,  
shut off the circulating pump and drain the solution. Re-  
peat system cleaning if necessary.  
g. Continue to add the same or different schedule spe-  
cific days of the week.  
CAUTION  
To add exceptions to the schedule:  
i. Press Add softkey.  
To avoid possible damage to piping systems constructed of  
plastic piping, DO NOT allow loop temperature to exceed  
115 F.  
ii. Select exception type from following:  
• Date  
8. When the cleaning process is complete, remove the short-  
circuited hoses. Reconnect the hoses to the proper supply  
and return the connections to each of the rooftop units.  
Refill the system and bleed off all air.  
9. Add antifreeze to the system in climates where ambient  
temperature falls below freezing, using the proportion of  
antifreeze shown in Table 17. The volume of antifreeze  
required will vary based on outdoor design temperature.  
• Date Range  
• Week-N-Day  
• Calender Reference  
9. Go back to Home Screen.  
6
10. Remove BACview cable from SPT sensor by reversing  
the process in Step 1.  
11. Perform system test.  
10. Test the system pH with litmus paper. The system water  
should be slightly alkaline ( pH 7.5 to 8.5). Add chemi-  
cals as appropriate to maintain acidity levels.  
11. When the system is successfully cleaned, flushed, refilled  
and bled, check the main system panels, safety cutouts,  
and alarms. Set the controls to properly maintain loop  
temperatures.  
Flow Regulation — Flow regulation can be accom-  
plished by two methods. Most water control valves have a flow  
adjustment built into the valve. By measuring the pressure drop  
through the unit heat exchanger, the flow rate can be deter-  
mined. Adjust the water control valve until the flow of 1.5 to 2  
gpm is achieved. Since the pressure constantly varies, two  
pressure gages may be needed in some applications.  
NOTE: Carrier strongly recommends all piping connections,  
both internal and external to the unit, be pressure tested by an  
appropriate method prior to any finishing of the interior space  
or before access to all connections is limited. Test pressure  
may not exceed the maximum allowable pressure for the unit  
and all components within the water system.  
Carrier will not be responsible or liable for damages from  
water leaks due to inadequate or lack of a pressurized leak test,  
or damages caused by exceeding the maximum pressure rating  
during installation.  
An alternative method is to install a flow control device.  
These devices are typically an orifice of plastic material de-  
signed to allow a specified flow rate that are mounted on the  
outlet of the water control valve. Occasionally these valves  
produce a velocity noise that can be reduced by applying some  
back pressure. To accomplish this, slightly close the leaving  
isolation valve of the well water setup.  
WARNING  
Electrical shock can cause personal injury and death. Shut  
off all power to this equipment during installation. There  
may be more than one disconnect switch. Tag all discon-  
nect locations to alert others not to restore power until  
flushing is completed.  
CAUTION  
Do Not use “Stop-Leak” or any similar chemical agent in  
this system. Addition of these chemicals to the loop water  
will foul the system and will inhibit unit operation.  
System Cleaning and Flushing Cleaning and  
flushing the unit is the single most important step to ensure  
proper start-up and continued efficient operation of the system.  
Follow the instructions below to properly clean and flush the  
system:  
Antifreeze — In areas where entering loop temperatures  
drop below 40 F or where piping will be routed through areas  
subject to freezing, antifreeze is needed.  
Alcohols and glycols are commonly used as antifreeze  
agents. Freeze protection should be maintained to 15 F below  
the lowest expected entering loop temperature. For example, if  
the lowest expected entering loop temperature is 30 F, the leav-  
ing loop temperature would be 22 to 25 F. Therefore, the freeze  
protection should be at 15 F (30 F – 15 F = 15 F).  
1. Verify that electrical power to the units is disconnected.  
2. Install the system with the supply hose connected directly  
to the return riser valve. Use a single length of flexible  
hose.  
3. Open all air vents. Fill the system with water. Do not al-  
low system to overflow. Bleed all air from the system.  
Check the system for leaks and repair appropriately.  
4. Verify that all strainers are in place. Start the pumps and  
systematically check each vent to ensure that all air is  
bled from the system.  
IMPORTANT: All alcohols should be pre-mixed and  
pumped from a reservoir outside of the building or  
introduced under water level to prevent fumes.  
Calculate the total volume of fluid in the piping system. Use  
the percentage by volume in Table 17 to determine the amount  
of antifreeze to use. Antifreeze concentration should be  
checked from a well mixed sample using a hydrometer to mea-  
sure specific gravity.  
FREEZE PROTECTION SELECTION — The 30 F FP1 fac-  
tory setting (water) should be used to avoid freeze damage to  
the unit.  
5. Verify that makeup water is available. Adjust makeup  
water appropriately to replace the air which was bled  
from the system. Check and adjust the water/air level in  
the expansion tank.  
6. Set the boiler (when used) to raise the loop temperature to  
approximately 85 F. Open a drain at the lowest point in  
the system. Adjust the makeup water replacement rate to  
equal the rate of bleed.  
Once antifreeze is selected, the JW3 jumper (FP1) should  
be clipped on the control to select the low temperature (anti-  
freeze 13 F) set point to avoid nuisance faults.  
7. Refill the system and add trisodium phosphate in a pro-  
portion of approximately one pound per 150 gallons of  
water. Reset the boiler (when used) to raise the loop tem-  
perature to about 100 F. Circulate the solution for a  
39  
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Table 17 — Antifreeze Percentages by Volume  
Enable will immediately turn on. If there is a Fan 2 demand,  
the Fan Enable and Fan Speed will immediately turn on.  
NOTE: DIP switch 5 on S1 does not have an effect upon Fan 1  
and Fan 2 outputs.  
MINIMUM TEMPERATURE FOR  
FREEZE PROTECTION (F)  
ANTIFREEZE  
Methanol (%)  
Propylene Glycol (%)  
Ethylene Glycol (%)  
0°  
25  
26  
24  
10  
21  
23  
20  
20  
16  
19  
16  
30  
10  
9
HEATING STAGE 1 — In Heating Stage 1 mode, the Fan  
Enable and Compressor relays are turned on immediately.  
Once the demand is removed, the relays are turned off and the  
control reverts to Standby mode. If there is a master/slave or  
dual compressor application, all compressor relays and related  
functions will operate per their associated DIP switch 2 setting  
on S1.  
HEATING STAGE 2 — In Heating Stage 2 mode, the Fan  
Enable and Compressor relays remain on. The Fan Speed relay  
is turned on immediately and turned off immediately once the  
demand is removed. The control reverts to Heating Stage 1  
mode. If there is a master/slave or dual compressor application,  
all compressor relays and related functions will operate per  
their associated DIP switch 2 setting on S1.  
HEATING STAGE 3 — In Heating Stage 3 mode, the Fan  
Enable, Fan Speed and Compressor relays remain on. The EH1  
output is turned on immediately. With continuing Heat Stage 3  
demand, EH2 will turn on after 10 minutes. EH1 and EH2 are  
turned off immediately when the Heating Stage 3 demand is re-  
moved. The control reverts to Heating Stage 2 mode.  
Output EH2 will be off if FP1 is greater than 45 F AND  
FP2 (when shorted) is greater than 110 F during Heating  
Stage 3 mode. This condition will have a 30-second recogni-  
tion time. Also, during Heating Stage 3 mode, EH1, EH2, Fan  
Enable, and Fan Speed will be ON if G input is not active.  
12  
Cooling Tower/Boiler Systems These systems  
typically use a common loop maintained at 60 to 90 F. The use  
of a closed circuit evaporative cooling tower with a secondary  
heat exchanger between the tower and the water loop is recom-  
mended. If an open type cooling tower is used continuously,  
chemical treatment and filtering will be necessary.  
Ground Coupled, Closed Loop and Plateframe  
Heat Exchanger Well Systems — These systems al-  
low water temperatures from 30 to 110 F. The external loop  
field is divided up into 2 in. polyethylene supply and return  
lines. Each line has valves connected in such a way that upon  
system start-up, each line can be isolated for flushing using  
only the system pumps. Air separation should be located in the  
piping system prior to the fluid re-entering the loop field.  
OPERATION  
Power Up Mode — The unit will not operate until all the  
inputs, terminals and safety controls are checked for normal  
operation.  
NOTE: The compressor will have a 5-minute anti-short cycle  
upon power up.  
EMERGENCY HEAT — In Emergency Heat mode, the Fan  
Enable and Fan Speed relays are turned on. The EH1 output is  
turned on immediately. With continuing Emergency Heat de-  
mand, EH2 will turn on after 5 minutes. Fan Enable and Fan  
Speed relays are turned off after a 60-second delay. The control  
reverts to Standby mode.  
Units with Aquazone™ Complete C Control  
STANDBY — Y and W terminals are not active in standby  
mode, however the O and G terminals may be active, depend-  
ing on the application. The compressor will be off.  
COOLING — Y and O terminals are active in Cooling mode.  
After power up, the first call to the compressor will initiate a  
5 to 80 second random start delay and a 5-minute anti-short  
cycle protection time delay. After both delays are complete, the  
compressor is energized.  
NOTE: On all subsequent compressor calls the random start  
delay is omitted.  
HEATING STAGE 1 — Terminal Y is active in heating  
stage 1. After power up, the first call to the compressor will  
initiate a 5 to 80 second random start delay and a 5-minute anti-  
short cycle protection time delay. After both delays are  
complete, the compressor is energized.  
NOTE: On all subsequent compressor calls the random start  
delay is omitted.  
HEATING STAGE 2 — To enter Stage 2 mode, terminal W is  
active (Y is already active). Also, the G terminal must be active  
or the W terminal is disregarded. The compressor relay will re-  
main on and EH1 is immediately turned on. EH2 will turn on  
after 10 minutes of continual stage 2 demand.  
NOTE: EH2 will not turn on (or if on, will turn off) if FP1 tem-  
perature is greater than 45 F and FP2 is greater than 110 F.  
Output EH1, EH2, Fan Enable, and Fan Speed will be ON if  
the G input is not active during Emergency Heat mode.  
COOLING STAGE 1 — In Cooling Stage 1 mode, the Fan  
Enable, compressor and RV relays are turned on immediately.  
If configured as stage 2 (DIP switch set to OFF) then the com-  
pressor and fan will not turn on until there is a stage 2 demand.  
The fan Enable and compressor relays are turned off immedi-  
ately when the Cooling Stage 1 demand is removed. The con-  
trol reverts to Standby mode. The RV relay remains on until  
there is a heating demand. If there is a master/slave or dual  
compressor application, all compressor relays and related func-  
tions will track with their associated DIP switch 2 on S1.  
COOLING STAGE 2 — In Cooling Stage 2 mode, the Fan  
Enable, compressor and RV relays remain on. The Fan Speed  
relay is turned on immediately and turned off immediately  
once the Cooling Stage 2 demand is removed. The control re-  
verts to Cooling Stage 1 mode. If there is a master/slave or dual  
compressor application, all compressor relays and related func-  
tions will track with their associated DIP switch 2 on S1.  
NIGHT LOW LIMIT (NLL) STAGED HEATING — In NLL  
staged Heating mode, the override (OVR) input becomes ac-  
tive and is recognized as a call for heating and the control will  
immediately go into a Heating Stage 1 mode. With an addition-  
al 30 minutes of NLL demand, the control will go into Heating  
Stage 2 mode. With another additional 30 minutes of NLL  
demand, the control will go into Heating Stage 3 mode.  
EMERGENCY HEAT — In emergency heat mode, terminal  
W is active while terminal Y is not. Terminal G must be active  
or the W terminal is disregarded. EH1 is immediately turned  
on. EH2 will turn on after 5 minutes of continual emergency  
heat demand.  
Units with WSHP Open Multiple Protocol —  
The WSHP Open multi-protocol controller will control me-  
chanical cooling, heating and waterside economizer outputs  
based on its own space temperature input and set points. An  
Units with Aquazone Deluxe D Control  
STANDBY/FAN ONLY — The compressor will be off. The  
Fan Enable, Fan Speed, and reversing valve (RV) relays will be  
on if inputs are present. If there is a Fan 1 demand, the Fan  
optional CO IAQ (indoor air quality) sensor mounted in the  
2
space can maximize the occupant comfort. The WSHP Open  
controller has its own hardware clock that is automatically set  
40  
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when the heat pump software is downloaded to the board. Oc-  
cupancy types are described in the scheduling section below.  
The following sections describe the functionality of the WSHP  
Open multi-protocol controller. All point objects referred to in  
this sequence of operation will be referenced to the objects as  
cooling is started while the Fan Off delay defines the delay  
time (0 to 180 seconds; default 45) the fan will continue to op-  
erate after heating or cooling is stopped. The fan will continue  
to run as long as the compressors, heating stages, or the dehu-  
midification relays are on. If the SPT failure alarm or conden-  
sate overflow alarm is active; the fan will be shut down imme-  
diately regardless of occupancy state or demand.  
Fan Speed Control (During Heating) — Whenever heat is re-  
quired and active, the control continuously monitors the sup-  
ply-air temperature to verify it does not rise above the config-  
ured maximum heating SAT limit (110 F default). As the SAT  
approaches this value, the control will increase the fan speed as  
required to ensure the SAT will remain within the limit. This  
feature provides the most quiet and efficient operation by oper-  
ating the fan at the lowest speed possible.  
Fan Speed Control (During Cooling) — Whenever mechani-  
cal cooling is required and active, the control continuously  
monitors the supply-air temperature to verify it does not fall be-  
low the configured minimum cooling SAT limit (50 F default).  
As the SAT approaches this value, the control will increase the  
fan speed as required to ensure the SAT will remain within the  
limit. The fan will operate at lowest speed to maximize latent  
capacity during cooling.  
6
viewed in the BACview handheld user interface.  
SCHEDULING — Scheduling is used to start/stop the unit  
based on a time period to control the space temperature to spec-  
ified occupied heating and cooling set points. The controller is  
defaulted to control by occupied set points all the time, until ei-  
6
ther a time schedule is configured with BACview , Field Assis-  
®
tant, i-Vu Open, or a third party control system to enable/dis-  
able the BAS (Building Automation System) on/off point. The  
local time and date must be set for these functions to operate  
properly. The occupancy source can be changed to one of the  
following:  
Occupancy Schedules — The controller will be occupied 24/7  
until a time schedule has been configured using either Field  
6
Assistant, i-Vu Open, BACview or a third party control sys-  
tem to enable/disable the BAS on/off point. The BAS point can  
be disabled by going to Config, then Unit, then Occupancy  
Schedules and changing the point from enable to disable then  
clicking OK.  
NOTE: This point must be enabled in order for the i-Vu Open,  
COOLING — The WSHP Open controller will operate one or  
two stages of compression to maintain the desired cooling set  
point. The compressor outputs are controlled by the PI (propor-  
tional-integral) cooling loop and cooling stages capacity algo-  
rithm. They will be used to calculate the desired number of  
stages needed to satisfy the space by comparing the space tem-  
perature (SPT) to the appropriate cooling set point. The water  
side economizer, if applicable, will be used for first stage cool-  
ing in addition to the compressor(s). The following conditions  
must be true in order for the cooling algorithm to run:  
6
Field Assistant, or BACview control system to assign a time  
schedule to the controller.  
Schedule_schedule — The unit will operate according to the  
schedule configured and stored in the unit. The schedule is  
6
accessible via the BACview Handheld tool, i-Vu Open, or  
Field Assistant control system. The daily schedule consists of a  
start/stop time (standard or 24-hour mode) and seven days of  
the week, starting with Monday and ending on Sunday. To  
enter a daily schedule, navigate to Config, then Sched, then  
6
enter BACview Admin Password (1111), then go to  
• Cooling is set to Enable.  
schedule_schedule. From here, enter either a Weekly or Excep-  
tion schedule for the unit.  
Occupancy Input Contact — The WSHP Open controller has  
the capability to use an external dry contact closure to deter-  
mine the occupancy status of the unit. The Occupancy Sched-  
ules will need to be disabled in order to utilize the occupancy  
contact input.  
• Heating mode is not active and the compressor time  
guard has expired.  
• Condensate overflow input is normal.  
• If occupied, the SPT is greater than the occupied cooling  
set point.  
• Space temperature reading is valid.  
• If unoccupied, the SPT is greater than the unoccupied  
cooling set point.  
• If economizer cooling is available and active and the  
economizer alone is insufficient to provide enough  
cooling.  
NOTE: Scheduling can only be controlled from one source.  
BAS (Building Automation System) On/Off  
A
BAS  
system that supports network scheduling can control the unit  
through a network communication and the BAS scheduling  
function once the Occupancy Schedules have been disabled.  
• OAT (if available) is greater than the cooling lockout  
temperature.  
NOTE: Scheduling can either be controlled via the unit or the  
BAS, but not both.  
INDOOR FAN — The indoor fan will operate in any one of  
three modes depending on the user configuration selected.  
Fan mode can be selected as Auto, Continuous, or Always  
On. In Auto mode, the fan is in intermittent operation during  
both occupied and unoccupied periods. Continuous fan mode  
is intermittent during unoccupied periods and continuous dur-  
ing occupied periods. Always On mode operates the fan con-  
tinuously during both occupied and unoccupied periods. In the  
default mode, Continuous, the fan will be turned on whenever  
any one of the following is true:  
If all the above conditions are met, the compressors will be  
energized as required, otherwise they will be deenergized. If  
cooling is active and should the SAT approach the minimum  
SAT limit, the fan will be indexed to the next higher speed.  
Should this be insufficient and if the SAT falls further (equal to  
the minimum SAT limit), the fan will be indexed to the maxi-  
mum speed. If the SAT continues to fall 5F below the mini-  
mum SAT limit, all cooling stages will be disabled.  
During Cooling mode, the reversing valve output will be  
held in the cooling position (either B or O type as configured)  
even after the compressor is stopped. The valve will not switch  
position until the Heating mode is required.  
The configuration screens contain the minimum SAT  
parameter as well as cooling lockout based on outdoor-air  
temperature (OAT) Both can be adjusted to meet various  
specifications.  
There is a 5-minute off time for the compressor as well as a  
5-minute time delay when staging up to allow the SAT to  
achieve a stable temperature before energizing a second stage  
of capacity. Likewise, a 45-second delay is used when staging  
down.  
• The unit is in occupied mode as determined by its occu-  
pancy status.  
• There is a demand for cooling or heating in the unoccu-  
pied mode.  
• There is a call for dehumidification (optional).  
When power is reapplied after a power outage, there will be  
a configured time delay of 5 to 600 seconds before starting the  
fan. There are also configured fan delays for Fan On and Fan  
Off. The Fan On delay defines the delay time (0 to 30 seconds;  
default 10) before the fan begins to operate after heating or  
41  
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After a compressor is staged off, it may be restarted again  
after a normal time-guard period of 5 minutes and if the  
supply-air temperature has increased above the minimum  
supply-air temperature limit.  
The WSHP Open controller provides a status input to moni-  
tor the compressor operation. The status is monitored to deter-  
mine if the compressor status matches the commanded state.  
This input is used to determine if a refrigerant safety switch or  
other safety device has tripped and caused the compressor to  
stop operating normally. If this should occur, an alarm will be  
generated to indicate the faulted compressor condition.  
HEATING — The WSHP Open controller will operate one or  
two stages of compression to maintain the desired heating set  
point. The compressor outputs are controlled by the heating PI  
(proportional-integral) loop and heating stages capacity algo-  
rithm. They will be used to calculate the desired number of  
stages needed to satisfy the space by comparing the space tem-  
perature (SPT) to the appropriate heating set point. The follow-  
ing conditions must be true in order for the heating algorithm to  
run:  
connected to a coil on the discharge side of the unit and sup-  
plied by a boiler or a single-stage ducted electric heater in order  
to maintain the desired heating set point. Should the compres-  
sor capacity be insufficient or a compressor failure occurs, the  
auxiliary heat will be used. Unless the compressor fails, the  
auxiliary heat will only operate to supplement the heat provid-  
ed by the compressor if the space temperature falls more than  
one degree below the desired heating set point (the amount is  
configurable). The heat will be controlled so the SAT will not  
exceed the maximum heating SAT limit.  
Auxiliary Modulating Hot Water/Steam Heating Reheat  
— The control can modulate a hot water or steam valve con-  
nected to a coil on the discharge side of the unit and supplied  
by a boiler in order to maintain the desired heating set point  
should the compressor capacity be insufficient or a compressor  
failure occurs. Unless a compressor fault condition exists, the  
valve will only operate to supplement heat provided by com-  
pressor if the space temperature falls more than one degree be-  
low the desired heating set point. The valve will be controlled  
so the SAT will not exceed maximum heating SAT limit.  
Two-Position Hot Water/Steam Heating Reheat The con-  
trol can operate a two-position, NO or NC, hot water or steam  
valve connected to a coil on the discharge side of the unit and  
supplied by a boiler in order to maintain the desired heating set  
point should the compressor capacity be insufficient or a com-  
pressor failure occurs. Unless a compressor fault condition ex-  
ists, the valve will only open to supplement the heat provided  
by the compressor if the space temperature falls more than one  
degree below the desired heating set point. The valve will be  
controlled so the SAT will not exceed the maximum heating  
SAT limit. The heat stage will also be subject to a 2-minute  
minimum OFF time to prevent excessive valve cycling.  
Single Stage Electric Auxiliary Heat — The control can op-  
erate a field-installed single stage of electric heat installed on  
the discharge side of the unit in order to maintain the desired  
heating set point should the compressor capacity be insufficient  
or a compressor failure occurs. Unless a compressor fault con-  
dition exists, the heat stage will only operate to supplement the  
heat provided by the compressor if the space temperature falls  
more than one degree below the desired heating set point. The  
heat stage will be controlled so the SAT will not exceed the  
maximum heating SAT limit. The heat stage will also be  
subject to a 2-minute minimum OFF time to prevent excessive  
cycling.  
• Heating is set to Enable.  
• Cooling mode is not active and the compressor time  
guard has expired.  
• Condensate overflow input is normal.  
• If occupied, the SPT is less than the occupied heating set  
point.  
• Space temperature reading is valid.  
• If unoccupied, the SPT is less than the unoccupied heat-  
ing set point.  
• OAT (if available) is less than the heating lockout  
temperature.  
If all the above conditions are met, the heating outputs will  
be energized as required, otherwise they will be deenergized. If  
the heating is active and should the SAT approach the maxi-  
mum SAT limit, the fan will be indexed to the next higher  
speed. Should this be insufficient, and the SAT rises further  
reaching the maximum heating SAT limit, the fan will be  
indexed to the maximum speed. If the SAT still continues to  
rise 5F above the maximum limit, all heating stages will be  
disabled.  
During Heating mode, the reversing valve output will be  
held in the heating position (either B or O type as configured)  
even after the compressor is stopped. The valve will not switch  
position until the Cooling mode is required.  
The configuration screens contain the maximum SAT  
parameter as well as heating lockout based on outdoor-air  
temperature (OAT); both can be adjusted to meet various  
specifications.  
There is a 5-minute off time for the compressor as well as a  
5-minute time delay when staging up to allow the SAT to  
achieve a stable temperature before energizing a second stage  
of capacity. Likewise, a 45-second delay is used when staging  
down.  
After a compressor is staged off, it may be restarted again  
after a normal time-guard period of 5 minutes and if the sup-  
ply-air temperature has fallen below the maximum supply air  
temperature limit.  
The WSHP Open controller provides a status input to moni-  
tor the compressor operation. The status is monitored to deter-  
mine if the compressor status matches the commanded state.  
This input is used to determine if a refrigerant safety switch or  
other safety device has tripped and caused the compressor to  
stop operating normally. If this should occur, an alarm will be  
generated to indicate the faulted compressor condition. Also, if  
auxiliary heat is available (see below), the auxiliary heat will  
operate to replace the reverse cycle heating and maintain the  
space temperature as required.  
INDOOR AIR QUALITY (IAQ) AND DEMAND CON-  
TROLLED VENTILATION (DCV) — If the optional in-  
door air quality sensor is installed, the WSHP Open controller  
can maintain indoor air quality via a modulating OA damper  
providing demand controlled ventilation. The control operates  
the modulating OA damper during occupied periods. The con-  
trol monitors the CO level and compares it to the configured  
2
set points, adjusting the ventilation rate as required. The control  
provides proportional ventilation to meet the requirements of  
ASHRAE (American Society of Heating, Refrigerating and  
Air Conditioning Engineers) specifications by providing a base  
ventilation rate and then increasing the rate as the CO level in-  
2
creases. The control will begin to proportionally increase venti-  
lation when the CO level rises above the start ventilation set  
2
point and will reach the full ventilation rate when the CO level  
2
is at or above the maximum set point. A user-configurable  
minimum damper position ensures that proper base ventilation  
is delivered when occupants are not present. The IAQ  
configurations can be accessed through the configuration  
screen. The following conditions must be true in order for this  
algorithm to run:  
• Damper control is configured for DCV.  
• The unit is in an occupied mode.  
• The IAQ sensor reading is greater than the DCV start  
control set point.  
AUXILIARY HEAT — The WSHP Open controller can con-  
trol a two-position, modulating water, or steam valve  
42  
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The control has four user adjustable set points: DCV start  
control set point, DCV maximum control set point, minimum  
damper position, and DCV maximum damper position.  
Two-Position OA Damper — The control can be configured  
to operate a ventilation damper in a two-position ventilation  
mode to provide the minimum ventilation requirements during  
occupied periods.  
WATERSIDE ECONOMIZER — The WSHP Open control-  
ler has the capability of providing modulating or two-position  
water economizer operation (for a field-installed economizer  
coil mounted to the entering air side of the unit and connected  
to the condenser water loop) in order to provide free cooling  
(or preheating) when water conditions are optimal. Water econ-  
omizer settings can be accessed through the equipment status  
screen. The following conditions must be true for economizer  
operation:  
manner except to satisfy the heating requirement. Should the  
coil capacity be insufficient to satisfy the space load for more  
than 5 minutes, then the compressor will be started to satisfy  
the load. Should the SAT reach the maximum heating SAT  
limit, the economizer valve will close during compressor oper-  
ation.  
DEMAND LIMIT — The WSHP Open controller has the  
ability to accept three levels of demand limit from the network.  
In response to a demand limit, the unit will decrease its heating  
set point and increase its cooling set point to widen the range in  
order to immediately lower the electrical demand. The amount  
of temperature adjustment in response is user adjustable for  
both heating and cooling and for each demand level. The re-  
sponse to a particular demand level may also be set to zero.  
CONDENSER WATER LINKAGE — The control pro-  
vides optimized water loop operation using an universal con-  
troller (UC) open loop controller. Loop pump operation is auto-  
matically controlled by WSHP equipment occupancy sched-  
ules, unoccupied demand and tenant override conditions.  
Positive pump status feedback prevents nuisance fault trips.  
The condenser water linkage operates when a request for con-  
denser water pump operation is sent from each WSHP to the  
loop controller. This request is generated whenever any WSHP  
is scheduled to be occupied, is starting during optimal start (for  
warm-up or pull down prior to occupancy), there is an unoccu-  
pied heating or cooling demand, or a tenant pushbutton over-  
ride. At each WSHP, the water loop temperature and the loop  
pump status is given. The WSHP will NOT start a compressor  
until the loop pumps are running or will shutdown the com-  
pressors should the pumps stop. This prevents the WSHP from  
operating without water flow and thus tripping out on refriger-  
ant pressure, causing a lockout condition. The WSHP Open  
controller control will prevent this from occurring. Also, the  
loop controller can be configured to start the pumps only after a  
configurable number of WSHPs are requesting operation (from  
1-"N"). This can be used to prevent starting the entire loop op-  
eration for only one WSHP. Meanwhile, the WSHPs will not  
operate if the loop pump status is off and therefore the WSHP  
compressor will not run.  
• SAT reading is available.  
• LWT reading is available.  
• If occupied, the SPT is greater than the occupied cooling  
set point or less than the occupied heating set point and  
the condenser water is suitable.  
• Space temperature reading is valid.  
• If unoccupied, the SPT is greater than the unoccupied  
cooling set point or less than the unoccupied heating set  
point and the condenser water is suitable.  
Modulating Water Economizer Control — The control has  
the capability to modulate a water valve to control condenser  
water flowing through a coil on the entering air side of the unit.  
Cooling — The purpose is to provide an economizer cooling  
function by using the water loop when the entering water loop  
temperature is suitable (at least 5° F below space temperature).  
If the water loop conditions are suitable, then the valve will  
modulate open as required to maintain a supply-air temperature  
that meets the load conditions. Should the economizer coil ca-  
pacity alone be insufficient for a period greater than 5 minutes,  
or should a high humidity condition occur, then the compressor  
will also be started to satisfy the load. Should the SAT ap-  
proach the minimum cooling SAT limit, the economizer valve  
will modulate closed during compressor operation.  
Heating — Additionally, the control will modulate the water  
valve should the entering water loop temperature be suitable  
for heating (at least 5F above space temperature) and heat is  
required. The valve will be controlled in a similar manner ex-  
cept to satisfy the heating requirement. Should the economizer  
coil capacity alone be insufficient to satisfy the space load con-  
ditions for more than 5 minutes, then the compressor will be  
started to satisfy the load. Should the SAT approach the maxi-  
mum heating SAT limit, the economizer valve will modulate  
closed during compressor operation.  
Two-Position Water Economizer Control — The control has  
the capability to control a NO or NC, two-position water valve  
to control condenser water flow through a coil on the entering  
air side of the unit.  
Cooling — The purpose is to provide a cooling economizer  
function directly from the condenser water loop when the en-  
tering water loop temperature is suitable (at least 5F below  
space temperature). If the optional coil is provided and the wa-  
ter loop conditions are suitable, then the valve will open to  
provide cooling to the space when required. Should the  
capacity be insufficient for a period greater than 5 minutes, or  
should a high humidity condition occur, then the compressor  
will be started to satisfy the load. Should the SAT reach the  
minimum cooling SAT limit, the economizer valve will close  
during compressor operation.  
SYSTEM TEST  
System testing provides the ability to check the control  
operation. The control enters a 20-minute Test mode by mo-  
mentarily shorting the test pins. All time delays are increased  
15 times.  
Test Mode — To enter Test mode on Complete C or De-  
luxe D controls, cycle the fan 3 times within 60 seconds. The  
LED (light-emitting diode) will flash a code representing the  
last fault when entering the Test mode. The alarm relay will  
also power on and off during Test mode. See Tables 18-20. To  
exit Test mode, short the terminals for 3 seconds or cycle the  
power 3 times within 60 seconds.  
NOTE: The Deluxe D control has a flashing code and alarm  
relay cycling code that will both have the same numerical  
label. For example, flashing code 1 will have an alarm relay  
cycling code 1. Code 1 indicates the control has not faulted  
since the last power off to power on sequence.  
Retry Mode — In Retry mode, the status LED will start to  
flash slowly to signal that the control is trying to recover from  
an input fault. The control will stage off the outputs and try to  
again satisfy the thermostat used to terminal Y. Once the ther-  
mostat input calls are satisfied, the control will continue normal  
operation.  
NOTE: If 3 consecutive faults occur without satisfying the  
thermostat input call to terminal Y, the control will go into  
lockout mode. The last fault causing the lockout is stored in  
memory and can be viewed by entering Test mode.  
Heating — Additionally, the economizer control will open the  
water valve should the entering water loop temperature be suit-  
able for heating (at least 5F above space temperature) and  
heat is required. The valve will be controlled in a similar  
43  
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Table 18 — Complete C Control Current LED  
Status and Alarm Relay Operations  
Table 19 — Complete C Control LED Code and  
Fault Descriptions  
LED STATUS  
DESCRIPTION OF OPERATION  
ALARM RELAY  
LED  
FAULT  
DESCRIPTION  
CODE  
1
Normal Mode  
Open  
No fault in memory  
There has been no fault since  
the last power-down to power-up  
sequence  
Cycle  
(closed 5 sec.,  
Open 25 sec.)  
On  
Normal Mode with  
PM Warning  
2
3
High-Pressure Switch  
Low-Pressure Switch  
HP Open Instantly  
Off  
Slow Flash  
Fast Flash  
Control is non-functional  
Fault Retry  
Open  
Open  
LP open for 30 continuous sec-  
onds before or during a call  
(bypassed for first 60 seconds)  
Lockout  
Closed  
Open  
4
5
Freeze Protection Coax  
— FP1  
FP1 below Temp limit for 30 con-  
tinuous seconds (bypassed for  
first 60 seconds of operation)  
Slow Flash  
Over/Under Voltage Shutdown  
(Closed after  
15 minutes)  
Flashing Code 1 Test Mode — No fault in memory  
Flashing Code 2 Test Mode — HP Fault in memory  
Flashing Code 3 Test Mode — LP Fault in memory  
Flashing Code 4 Test Mode — FP1 Fault in memory  
Flashing Code 5 Test Mode — FP2 Fault in memory  
Flashing Code 6 Test Mode — CO Fault in memory  
Cycling Code 1  
Cycling Code 2  
Cycling Code 3  
Cycling Code 4  
Cycling Code 5  
Cycling Code 6  
Freeze Protection Air Coil  
— FP2  
FP2 below Temp limit for 30 con-  
tinuous seconds (bypassed for  
first 60 seconds of operation)  
6
7
Condensate overflow  
Over/Under Voltage  
Sense overflow (grounded) for  
30 continuous seconds  
"R" power supply is <19VAC or  
>30VAC  
(Autoreset) Shutdown  
8
PM Warning  
Performance Monitor Warning  
has occurred.  
Test Mode — Over/Under  
Flashing Code 7  
Cycling Code 7  
Cycling Code 8  
Cycling Code 9  
shutdown in memory  
9
FP1 and FP2 Thermistors FP1 temperature is higher than  
are Swapped  
Flashing Code 8  
Flashing Code 9  
Test Mode — PM in memory  
FP2 in heating/test mode, or FP2  
temperature is higher than FP1  
in cooling/test mode.  
Test Mode — Test Mode — FP1/  
FP2 Swapped Fault in memory  
LEGEND  
LEGEND  
CO  
FP  
HP  
Condensate Overflow  
FP  
HP  
Freeze Protection  
High Pressure  
Freeze Protection  
High Pressure  
LED — Light-Emitting Diode  
LED — Light-Emitting Diode  
LP  
PM  
Low Pressure  
LP  
PM  
Low Pressure  
Performance Monitor  
Performance Monitor  
NOTES:  
1. Slow flash is 1 flash every 2 seconds.  
2. Fast flash is 2 flashes every 1 second.  
3. EXAMPLE: “Flashing Code 2” is represented by 2 fast flashes followed by a  
10-second pause. This sequence will repeat continually until the fault is  
cleared.  
Table 20 — Aquazone™ Deluxe D Control Current LED Status and Alarm Relay Operations  
STATUS LED  
(Green)  
TEST LED  
(Yellow)  
DESCRIPTION  
Normal Mode  
FAULT LED (Red)  
Flash Last Fault Code in Memory  
Flashing Code 8  
ALARM RELAY  
On  
Off  
Open  
Cycle (closed 5 sec,  
open 25 sec, …)  
Normal Mode with PM  
On  
Off  
Deluxe D Control is  
non-functional  
Off  
Off  
Off  
Open  
Test Mode  
Night Setback  
ESD  
Invalid T-stat Inputs  
No Fault in Memory  
HP Fault  
On  
Flash Last Fault Code in Memory  
Flash Last Fault Code in Memory  
Flash Last Fault Code in Memory  
Flash Last Fault Code in Memory  
Flashing Code 1  
Cycling Appropriate Code  
Flashing Code 2  
Flashing Code 3  
Flashing Code 4  
On  
Open  
Open  
Open  
Open  
Open  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Slow Flash  
Slow Flash  
Slow Flash  
Slow Flash  
Slow Flash  
Slow Flash  
Fast Flash  
Fast Flash  
Fast Flash  
Fast Flash  
Fast Flash  
Flashing Code 2  
Flashing Code 3  
Flashing Code 4  
Flashing Code 5  
Flashing Code 6  
Flashing Code 7  
Flashing Code 2  
Flashing Code 3  
LP Fault  
FP1 Fault  
FP2 Fault  
CO Fault  
Open  
Over/Under Voltage  
HP Lockout  
LP Lockout  
FP1 Lockout  
FP2 Lockout  
CO Lockout  
Open (closed after 15 minutes)  
Closed  
Closed  
Closed  
Closed  
Closed  
Flashing Code 4  
Flashing Code 5  
Flashing Code 6  
LEGEND  
NOTES:  
1. If there is no fault in memory, the Fault LED will flash code 1.  
2. Codes will be displayed with a 10-second Fault LED pause.  
3. Slow flash is 1 flash every 2 seconds.  
CO — Condensate Overflow  
ESD — Emergency Shutdown  
FP  
Freeze Protection  
4. Fast flash is 2 flashes every 1 second.  
HP — High Pressure  
LP — Low Pressure  
PM — Performance Monitor  
5. EXAMPLE: “Flashing Code 2” is represented by 2 fast flashes fol-  
lowed by a 10-second pause. This sequence will repeat continually  
until the fault is cleared.  
44  
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Aquazone™ Deluxe D Control LED Indica-  
tors — There are 3 LED indicators on the Deluxe D control.  
See Table 20.  
Filters — Filters must be clean for maximum performance.  
Inspect filters every month under normal operating conditions.  
replace when necessary.  
STATUS LED — Status LED indicates the current status or  
mode of the Deluxe D control. The Status LED light is green.  
TEST LED — Test LED will be activated any time the De-  
luxe D control is in test mode. The Test LED light is yellow.  
FAULT LED — Fault LED light is red. The fault LED will  
always flash a code representing the last fault in memory. If  
there is no fault in memory, the fault LED will flash code 1 on  
and appear as 1 fast flash alternating with a 10-second pause.  
See Table 20.  
IMPORTANT: Units should never be operated with-  
out a filter.  
Water Coil — Keep all air out of the water coil. Check  
open loop systems to be sure the well head is not allowing air  
to infiltrate the water line. Always keep lines airtight.  
Inspect heat exchangers regularly, and clean more frequent-  
ly if the unit is located in a “dirty” environment. The heat  
exchanger should be kept full of water at all times. Open loop  
systems should have an inverted P trap placed in the discharge  
line to keep water in the heat exchanger during off cycles.  
Closed loop systems must have a minimum of 15 psi during  
the summer and 40 psi during the winter.  
WSHP Open Test Mode — To enter WSHP Open test  
6
mode, navigate from the BACview home screen to the  
configuration screen. Choose the service screen and enable  
unit test. The controller will then test the following:  
FAN TEST — Tests all fan speeds, sequences fan from low to  
high, and operates each speed for one minute. Resets to disable  
on completion.  
COMPRESSOR TEST — Tests compressor cooling and  
heating operation. Sequences cooling stage 1 then cooling  
stage 2 followed by heating stage 2 then reduces capacity to  
heating stage 1. Operates for 1 minute per step.  
DEHUMIDIFICATION TEST — Tests dehumidification  
mode. Operates for 2 minutes.  
AUXILIARY HEATING TEST — Tests auxiliary heat. Se-  
quences fan on and enables heating coil for 1 minute.  
Check P trap frequently for proper operation.  
CAUTION  
To avoid fouled machinery and extensive unit clean-up,  
DO NOT operate units without filters in place. DO NOT  
use equipment as a temporary heat source during  
construction.  
Condensate Drain Pans — Check condensate drain  
pans for algae growth twice a year. If algae growth is apparent,  
consult a water treatment specialist for proper chemical treat-  
ment. The application of an algaecide every three months will  
typically eliminate algae problems in most locations.  
H O ECONOMIZER TEST — Tests entering/returning  
2
water loop economizer operation. Sequences fan and opens  
economizer water valve for one minute.  
Refrigerant System — Verify air and water flow rates  
are at proper levels before servicing. To maintain sealed circuit-  
ry integrity, do not install service gages unless unit operation  
appears abnormal. Check to see that unit is within the super-  
heat and subcooling ranges.  
OPEN VENT DAMPER 100% TEST — Tests outside air  
(OA) damper operation.  
PREPOSITION OA DAMPER — Prepositions OA damper  
actuator to set proper preload.  
NOTE: The auxiliary heating test, H O economizer test, open  
2
Condensate Drain Cleaning — Clean the drain line  
and unit drain pan at the start of each cooling season. Check  
flow by pouring water into drain. Be sure trap is filled to main-  
tain an air seal.  
vent damper 100% test, and preposition OA damper features  
will not be visible on the screen unless configured.  
Once tests are complete, set unit test back to disable. Unit will  
automatically reset to disable after 1 hour.  
Air Coil Cleaning — Remove dirt and debris from evap-  
orator coil as required by condition of the coil. Clean coil with  
a stiff brush, vacuum cleaner, or compressed air. Use a fin  
comb of the correct tooth spacing when straightening mashed  
or bent coil fins.  
SERVICE  
Perform the procedures outlined below periodically, as  
indicated.  
Condenser Cleaning — Water-cooled condensers may  
require cleaning of scale (water deposits) due to improperly  
maintained closed-loop water systems. Sludge build-up may  
need to be cleaned in an open water tower system due to  
induced contaminants.  
IMPORTANT: When a compressor is removed from this  
unit, system refrigerant circuit oil will remain in the com-  
pressor. To avoid leakage of compressor oil, the refrigerant  
lines of the compressor must be sealed after it is removed.  
Local water conditions may cause excessive fouling or  
pitting of tubes. Condenser tubes should therefore be cleaned at  
least once a year, or more often if the water is contaminated.  
Proper water treatment can minimize tube fouling and  
pitting. If such conditions are anticipated, water treatment  
analysis is recommended. Refer to the Carrier System Design  
Manual, Part 5, for general water conditioning information.  
IMPORTANT: All refrigerant discharged from this unit  
must be recovered without exception. Technicians must fol-  
low industry accepted guidelines and all local, state and fed-  
eral statutes for the recovery and disposal of refrigerants.  
IMPORTANT: To avoid the release of refrigerant into the  
atmosphere, the refrigerant circuit of this unit must only be  
serviced by technicians which meet local, state and federal  
proficiency requirements.  
CAUTION  
Follow all safety codes. Wear safety glasses and rubber  
gloves when using inhibited hydrochloric acid solution.  
Observe and follow acid manufacturer’s instructions. Fail-  
ure to follow these safety precautions could result in per-  
sonal injury or equipment or property damage.  
IMPORTANT: To prevent injury or death due to electrical  
shock or contact with moving parts, open unit disconnect  
switch before servicing unit.  
45  
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Clean condensers with an inhibited hydrochloric acid solu-  
tion. The acid can stain hands and clothing, damage concrete,  
and, without inhibitor, damage steel. Cover surroundings to  
guard against splashing. Vapors from vent pipe are not harmful,  
but take care to prevent liquid from being carried over by the  
gases.  
Warm solution acts faster, but cold solution is just as effec-  
tive if applied for a longer period.  
GRAVITY FLOW METHOD — Do not add solution faster  
than vent can exhaust the generated gases.  
GAS VENT  
PUMP  
PRIMING  
CONN.  
GLOBE  
VALVES  
SUCTION  
SUPPLY  
1” PIPE  
PUMP  
SUPPORT  
CONDENSER  
When condenser is full, allow solution to remain overnight,  
then drain condenser and flush with clean water. Follow acid  
manufacturer’s instructions. See Fig. 23.  
TANK  
REMOVE WATER  
REGULATING VALVE  
FORCED CIRCULATION METHOD — Fully open vent  
pipe when filling condenser. The vent may be closed when  
condenser is full and pump is operating. See Fig. 24.  
RETURN  
FINE MESH  
SCREEN  
Regulate flow to condenser with a supply line valve. If  
pump is a nonoverloading type, the valve may be fully closed  
while pump is running.  
Fig. 24 — Forced Circulation Method  
For average scale deposit, allow solution to remain in con-  
denser overnight. For heavy scale deposit, allow 24 hours.  
Drain condenser and flush with clean water. Follow acid manu-  
facturer’s instructions.  
6. ADD refrigerant to raise the temperature or REMOVE  
refrigerant (using standard practices) to lower the temper-  
ature (allow a tolerance of ± 3° F), as required.  
Refrigerant Charging  
WARNING  
Checking System Charge — Units are shipped with  
full operating charge. If recharging is necessary:  
1. Insert thermometer bulb in insulating rubber sleeve on  
liquid line near filter drier. Use a digital thermometer for  
all temperature measurements. DO NOT use a mercury  
or dial-type thermometer.  
To prevent personal injury, wear safety glasses and gloves  
when handling refrigerant. Do not overcharge system —  
this can cause compressor flooding.  
2. Connect pressure gage to discharge line near compressor.  
NOTE: Do not vent or depressurize unit refrigerant to atmo-  
sphere. Remove and recover refrigerant following accepted  
practices.  
3. After unit conditions have stabilized, read head pressure  
on discharge line gage.  
NOTE: Operate unit a minimum of 15 minutes before  
checking charge.  
4. From standard field-supplied Pressure-Temperature chart  
for R-410A, find equivalent saturated condensing  
temperature.  
5. Read liquid line temperature on thermometer; then  
subtract from saturated condensing temperature. The dif-  
ference equals subcooling temperature.  
Air Coil Fan Motor Removal  
CAUTION  
Before attempting to remove fan motors or motor mounts,  
place a piece of plywood over evaporator coils to prevent  
coil damage.  
Motor power wires need to be disconnected from motor  
terminals before motor is removed from unit.  
1. Shut off unit main power supply.  
2. Loosen bolts on mounting bracket so that fan belt can be  
removed.  
3. Loosen and remove the 2 motor mounting bracket bolts  
on left side of bracket.  
4. Slide motor/bracket assembly to extreme right and lift out  
through space between fan scroll and side frame. Rest  
motor on a high platform such as a step ladder. Do not  
allow motor to hang by its power wires.  
FILL CONDENSER WITH  
CLEANING SOLUTION. DO  
PAIL  
NOT ADD SOLUTION  
MORE RAPIDLY THAN  
VENT CAN EXHAUST  
GASES CAUSED BY  
FUNNEL  
CHEMICAL ACTION.  
1”  
PIPE  
VENT  
PIPE  
5’ APPROX  
3’ TO 4’  
Replacing the WSHP Open Controller’s Bat-  
tery — The WSHP Open controller’s 10-year lithium  
CR2032 battery provides a minimum of 10,000 hours of data  
retention during power outages.  
CONDENSER  
NOTE: Power must be ON to the WSHP Open controller  
when replacing the battery, or the date, time and trend data will  
be lost.  
1. Remove the battery from the controller, making note of  
the battery's polarity.  
PAIL  
2. Insert the new battery, matching the battery's polarity  
with the polarity indicated on the WSHP Open controller.  
Fig. 23 — Gravity Flow Method  
46  
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TROUBLESHOOTING  
Control Sensors — The control system employs 2 nom-  
inal 10,000 ohm thermistors (FP1 and FP2) that are used for  
freeze protection. Be sure FP1 is located in the discharge fluid  
and FP2 is located in the air discharge. See Fig. 25.  
When troubleshooting problems with a WSHP, consider the  
cuases and solutions in Table 21.  
Thermistor — A thermistor may be required for single-  
phase units where starting the unit is a problem due to low  
voltage.  
AIR  
COIL  
SUCTION  
AIRFLOW  
(°F)  
AIRFLOW  
(°F)  
COMPRESSOR  
THERMISTOR  
EXPANSION  
VALVE  
COAX  
DISCHARGE  
FP2  
FP1  
CONDENSATE  
OVERFLOW  
(CO)  
LIQUID  
LINE  
WATER IN  
WATER OUT  
AIR COIL  
WATER  
COIL  
PROTECTION  
FREEZE  
PROTECTION  
LEGEND  
COAX — Coaxial Heat Exchanger  
Airflow  
Refrigerant Liquid Line Flow  
Fig. 25 — FP1 and FP2 Thermistor Location  
47  
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Table 21 — Troubleshooting  
FAULT  
HEATING COOLING  
POSSIBLE CAUSE  
SOLUTION  
Main Power Problems  
X
X
Green Status LED Off  
Check line voltage circuit breaker and disconnect.  
Check for line voltage between L1 and L2 on the contactor.  
Check for 24 VAC between R and C on controller.  
Check primary/secondary voltage on transformer.  
HP Fault — Code 2  
High Pressure  
X
X
Reduced or no water flow in Check pump operation or valve operation/setting.  
cooling  
Check water flow adjust to proper flow rate.  
Water temperature out of  
range in cooling  
Bring water temperature within design parameters.  
X
X
Reduced or no airflow in  
heating  
Check for dirty air filter and clean or replace.  
Check fan motor operation and airflow restrictions.  
Dirty air coil — construction dust etc.  
External static too high. Check Tables 4-12.  
Air temperature out of range Bring return air temperature within design parameters.  
in heating  
X
X
X
X
X
X
X
Overcharged with refrigerant Check superheat/subcooling vs typical operating condition.  
Bad HP switch  
Insufficient charge  
Check switch continuity and operation. Replace.  
Check for refrigerant leaks.  
LP/LOC Fault — Code 3  
Low Pressure/Loss of  
Charge  
Compressor pump down at Check charge and start-up water flow.  
start-up  
FP1 Fault — Code 4  
Water Freeze Protection  
X
Reduced or no water flow in Check pump operation or water valve operation/setting.  
heating  
Plugged strainer or filter. Clean or replace.  
Check water flow adjust to proper flow rate.  
X
X
Inadequate antifreeze level Check antifreeze density with hydrometer.  
Improper freeze protect set- Clip JW2 jumper for antifreeze (10F) use.  
ting (30F vs 10F)  
X
X
Water temperature out of  
range  
Bad thermistor  
Reduced or no airflow in  
cooling  
Bring water temperature within design parameters.  
X
X
Check temperature and impedance correlation.  
Check for dirty air filter and clean or replace.  
Check fan motor operation and airflow restrictions.  
External static too high. Check Tables 4-12.  
FP2 Fault — Code 5  
Air Coil Freeze  
Protection  
X
X
Air temperature out of range Too much cold vent air. Bring entering air temperature within  
design parameters.  
Improper freeze protect set- Normal airside applications will require 30F only.  
ting (30F vs 10F)  
X
X
X
X
X
X
X
Bad thermistor  
Blocked drain  
Improper trap  
Poor drainage  
Check temperature and impedance correlation.  
Check for blockage and clean drain.  
Check trap dimensions and location ahead of vent.  
Check for piping slope away from unit.  
Condensate Fault —  
Code 6  
Check slope of unit toward outlet.  
Poor venting. Check vent location.  
X
X
Moisture on sensor  
Under voltage  
Check for moisture shorting to air coil.  
Check power supply and 24 VAC voltage before and during operation.  
Check power supply wire size.  
Over/Under Voltage —  
Code 7  
(Auto Resetting)  
X
Check compressor starting.  
Check 24 VAC and unit transformer tap for correct power supply voltage.  
Check power supply voltage and 24 VAC before and during operation.  
Check 24 VAC and unit transformer tap for correct power supply voltage.  
Check for poor airflow or overcharged unit.  
Check for poor water flow or airflow.  
X
X
X
X
Over voltage  
Performance Monitor —  
Code 8  
Heating mode FP2>125F  
Cooling mode FP1>125F  
OR FP2< 40F  
FP1 and FP2  
Thermistors — Code 9  
X
FP1 temperature is higher  
than FP2 temperature  
FP2 temperature is higher  
than FP1 temperature  
Swap FP1 and FP2 thermistors.  
Swap FP1 and FP2 thermistors.  
X
No Fault Code Shown  
Unit Short Cycles  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
No compressor operation  
Compressor overload  
Control board  
Dirty air filter  
Unit in 'Test Mode'  
Unit selection  
Compressor overload  
Thermostat position  
Unit locked out  
Compressor overload  
Thermostat wiring  
See scroll compressor rotation section.  
Check and replace if necessary.  
Reset power and check operation.  
Check and clean air filter.  
Reset power or wait 20 minutes for auto exit.  
Unit may be oversized for space. Check sizing for actual load of space.  
Check and replace if necessary.  
Ensure thermostat set for heating or cooling operation.  
Check for lockout codes. Reset power.  
Check compressor overload. Replace if necessary.  
Only Fan Runs  
Check Y and W wiring at heat pump. Jumper Y and R for compressor  
operation in Test mode.  
LEGEND  
RV — Reversing Valve  
48  
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Table 21 — Troubleshooting (cont)  
FAULT  
HEATING COOLING  
POSSIBLE CAUSE  
SOLUTION  
Only Compressor Runs  
X
X
X
X
Thermostat wiring  
Fan motor relay  
Check G wiring at heat pump. Jumper G and R for fan operation.  
Jumper G and R for fan operation. Check for line voltage across BR  
contacts.  
Check fan power enable relay operation (if present).  
Check for line voltage at motor. Check capacitor.  
Check Y and W wiring at heat pump. Jumper Y and R for compressor  
operation in test mode.  
X
X
X
X
Fan motor  
Thermostat wiring  
Unit Does Not Operate in  
Cooling  
X
Reversing valve  
Set for cooling demand and check 24 VAC on RV coil and at control.  
If RV is stuck, run high pressure up by reducing water flow and while  
operating engage and disengage RV coil voltage to push valve.  
X
X
X
Thermostat setup  
Thermostat wiring  
Dirty filter  
Reduced or no airflow in  
heating  
Check for 'O' RV setup not 'B'.  
Check O wiring at heat pump. Jumper O and R for RV coil 'Click'.  
Replace or clean.  
Check for dirty air filter and clean or replace.  
Check fan motor operation and airflow restrictions.  
External static too high. Check blower Tables 4-12.  
Check for dirty air filter and clean or replace.  
Check fan motor operation and airflow restrictions.  
External static too high. Check blower Tables 4-12.  
Insufficient Capacity/  
Not Cooling or Heating  
Properly  
X
X
X
X
Reduced or no airflow in  
cooling  
X
Leaky ductwork  
Check supply and return air temperatures at the unit and at distant duct  
registers if significantly different, duct leaks are present.  
X
X
X
X
X
X
Low refrigerant charge  
Restricted metering device Check superheat and subcooling. Replace metering device.  
Defective reversing valve  
Thermostat improperly  
located  
Check superheat and subcooling .  
Perform RV touch test.  
Check location and for air drafts behind thermostat.  
X
X
X
X
X
X
Unit undersized  
Recheck loads and sizing check sensible cooling load and heat pump  
capacity.  
Perform Scaling check and clean if necessary.  
Scaling in water heat  
exchanger  
Inlet water too hot or cold  
Reduced or no airflow in  
heating  
X
X
Check load, loop sizing, loop backfill, ground moisture.  
Check for dirty air filter and clean or replace.  
Check fan motor operation and airflow restrictions.  
External static too high. Check blower Tables 4-12.  
High Head Pressure  
X
X
Reduced or no water flow in Check pump operation or valve operation/setting.  
cooling  
Check water flow and adjust to proper flow rate.  
Inlet water too hot  
Check load, loop sizing, loop backfill, ground moisture.  
X
Air temperature out of range Bring return air temperature within design parameters.  
in heating  
X
Scaling in water heat  
exchanger  
Perform Scaling check and clean if necessary.  
X
X
X
X
Unit overcharged  
Non-condensables in  
system  
Check superheat and subcooling. Reweigh in charge.  
Vacuum system and reweigh in charge.  
X
X
X
Restricted metering device Check superheat and subcooling. Replace metering device.  
Low Suction Pressure  
Reduced water flow in  
heating  
Check pump operation or water valve operation/setting.  
Plugged strainer or filter. Clean or replace.  
Check water flow adjust to proper flow rate.  
X
Water temperature out of  
range  
Bring water temperature within design parameters.  
X
Reduced airflow in cooling Check for dirty air filter and clean or replace.  
Check fan motor operation and airflow restrictions.  
External static too high. Check blower Tables 4-12.  
X
X
Air temperature out of range Too much cold vent air. Bring entering air temperature within design  
parameters.  
X
X
X
Insufficient charge  
Airflow too high  
Poor performance  
Airflow too high  
Unit oversized  
Check for refrigerant leaks.  
Check blower Tables 4-12.  
See 'Insufficient Capacity'.  
Check blower Tables 4-12.  
Recheck loads and sizing check sensible cooling load and heat pump  
capacity.  
Low Discharge Air  
Temperature in Heating  
High Humidity  
X
X
LEGEND  
RV — Reversing Valve  
49  
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APPENDIX A — WSHP OPEN SCREEN CONFIGURATION  
PASSWORD  
LEVEL  
SCREEN NAME  
POINT NAME  
EDITABLE  
RANGE  
DEFAULT  
NOTES  
Off, Fan Only, Economize,  
Cooling, Heating, Cont Fan,  
Test, Start Delay, Dehumidify  
Operating Mode  
Displays unit operating mode  
SPT  
SAT  
F
F
Displays SPT  
Displays SAT  
Condenser Leaving  
Temperature  
Displays leaving condenser  
water temperature  
F
Displays entering condenser  
water temperature (Value  
will not update when compressor  
is operating)  
Condenser Entering  
Temperature  
F
Off/Low Speed/  
Medium Speed  
High Speed/On  
Fan  
Displays fan speed status  
Equipment  
Status  
No Password  
Required  
Compressor Capacity  
Damper Position  
0 - 100%  
0 - 100%  
0 - 100%  
Displays compressor capacity  
Displays current damper position  
(Viewable only if Ventilation DMP  
Type = 2 position or DCV)  
H O Economizer  
2
Displays position of economizer valve  
Displays position of auxiliary  
reheat valve (Viewable only if Leaving  
Air Auxiliary Heat Type = 2 position,  
1 stage Elect or Modulating)  
Auxiliary Heat  
0 - 100%  
Displays space RH% (Viewable only if  
Humidity Sensor = Installed)  
Space RH  
0 - 100%  
Displays if dehumidification is active  
(Viewable only if Factory  
Dehumidification Reheat = Installed)  
Dehumidification  
Inactive/Active  
IAQ CO  
0 - 9999 ppm  
Normal/Alarm  
Displays the space CO level  
2
2
Displays current space  
temperature condition  
SPT Alarm Status  
Displays the SPT that  
exceeded the alarm limit (when SPT  
alarm above is in Alarm)  
Alarming SPT  
F
F
Displays the SPT alarm limit that was  
exceeded; causing the alarm condition  
(when SPT alarm above is in Alarm)  
SPT Alarm Limit  
Displays the status of the Rnet  
SPT sensor - ALARM is displayed  
should the sensor fail to communicate  
with the control module  
SPT Sensor Alarm  
Status  
Normal/Alarm  
IAQ Alarm Status  
Normal/Alarm  
Normal/Alarm  
Normal/Alarm  
Normal/Alarm  
Current IAQ/ventilation condition  
Current compressor condition  
Current SAT condition  
Compressor Alarm  
Status  
No Password  
Required  
Alarm Status  
SAT Alarm Status  
Condensate Overflow  
Alarm Status  
Current status of the condensate  
drain (overflow switch)  
Condenser Water Tem-  
perature Alarm Status  
Current status of the  
condenser water  
Normal/Alarm  
Filter Alarm Status  
Normal/Alarm  
Normal/Alarm  
Current filter condition  
Space RH Alarm Status  
Current space RH condition  
Current status of the OAT  
broadcast function  
OAT Alarm Status  
Normal/Alarm  
Normal/Alarm  
Normal/Alarm  
Airside Linkage Status  
Current linkage status if enabled  
Condenser Water  
Linkage  
Current linkage status if enabled  
SAT  
F
Display SAT  
SAT Offset  
X
X
-9.9 - 10.0  
F
F
F
0
0
0
F
F
F
Used to correct sensor reading  
Leaving Condenser  
Water Temperature  
Displays Leaving Condenser  
Water Temperature  
F
Leaving CW Offset  
-9.9 - 10.0  
Used to correct sensor reading  
Sensor  
Calibration  
Admin Password  
level access only  
Rnet Sensor  
Temperature  
F
Displays SPT  
Rnet Offset  
RH  
X
X
-9.9 - 10.0  
%
Used to correct sensor reading  
Displays Space RH value  
RH Sensor Offset  
-15% - 15%  
0 %  
Used to correct sensor reading  
LEGEND  
BAS — Building Automation System  
DCV — Demand Controlled Ventilation  
ECM — Electronically Commutated Motor  
IAQ — Indoor Air Quality  
OAT — Outdoor Air Temperature  
RH  
Relative Humidity  
SAT — Supply Air Temperature  
SPT — Space Temperature  
TPI — Third Party Integration  
50  
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APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont)  
PASSWORD  
LEVEL  
SCREEN NAME  
POINT NAME  
EDITABLE  
RANGE  
DEFAULT  
NOTES  
Off, Fan Only,Economize,  
Cooling, Heating, Cont Fan, Test,  
Start Delay, Dehumidify  
Operating Mode  
Displays unit operating mode  
Displays how the fan is configured  
to operate  
Fan Operating Mode  
Occupancy Status  
Auto/Continuous/Always On  
Unoccupied/Occupied  
Displays the current occupancy status  
Always Occupied/Local Schedule/  
BACnet Schedule/BAS Keypad/  
Occupied Contact/Holiday Schedule/  
Override Schedule/Pushbutton  
Override/Unoccupied None  
Displays the origin of the  
occupancy control  
Occupancy Control  
Outside Air  
Displays OAT (Viewable only if OAT  
is a network broadcast)  
F
F
Temperature  
SPT  
Displays SPT  
Normal/Above Limit/Below  
Limit/Sensor Failure  
SPT Status  
Displays the SPT status  
Displays the connection status  
of the Rnet sensor  
SPT Sensor Status  
Condensate Overflow  
Cooling Set Point  
Inactive/Connected  
Normal/Alarm  
Displays the status of the  
condensate overflow  
Displays the actual set point  
being used for cooling control  
F
F
Displays the actual set point  
being used for heating control  
Heating Set Point  
Unit  
Maintenance  
No Password  
required  
Displays the offset values from the Rnet  
user set point adjustment that is being  
applied to the configured set points  
Set Point Adjustment  
F
Auxiliary Heat Control  
Set Point  
Displays the calculated set point being  
used for auxiliary heating control  
F
F
H O Economizer  
2
Control Set Point  
Displays the calculated set point being  
used for economizer control  
Calculated IAQ/  
Ventilation Damper  
position  
Displays the ventilation damper  
position calculated by the DCV control  
%
Active Compressor  
Stages  
Displays the actual number of  
compressor stages operating  
0/1/2  
SAT  
F
Displays SAT  
Used to reset the filter alarm timer after  
the filter has been cleaned or replaced  
Reset Filter Alarm  
X
X
No/Yes  
Displays the state of the condensate  
overflow switch contact  
Overflow Contact  
Closed/Open  
Closed/Open  
Displays the state of the external/  
remote occupancy input switch contact  
Occupancy Contact  
Provides capability to force the  
equipment to operate in an  
occupied or unoccupied mode  
Inactive/Occupied/  
Unoccupied  
BAS/Keypad Override  
OAT Input  
Inactive  
Displays if an OAT value is being  
received from the Network  
N/A / Network  
BACnet  
Keypad Configuration  
Password  
X
X
X
X
X
X
See TPI  
Mapping  
Changes password  
See TPI  
System Settings  
Network  
BACnet Time Master  
Clock Set  
See TPI  
Changes clock/time setting  
Override Schedules  
Pushbutton Override  
Inactive/Active Occupied  
Inactive/Active Occupied  
Inactive/Active Occupied/Active  
Unoccupied  
Keypad Override  
Occupancy  
Maintenance  
No Password  
required  
Used to display the active and  
inactive occupancy control inputs  
Schedules  
Occupancy Contact  
BAS on/off  
Inactive/Active Occupied  
Inactive/Active Occupied  
Inactive/Active Occupied  
Local Occupancy  
Schedules  
X
X
X
X
Disable/Enable  
Disable/Enable  
Disable/Enable  
Disable/Enable  
Enable  
Disable  
Disable  
Disable  
Local Holiday  
Schedules  
User/Admin  
Password level  
access  
Used to define which occupancy inputs  
are used to determine  
Schedule  
Configuration  
Local Override  
Schedules  
occupancy mode.  
BACnet Occupancy  
Schedules  
LEGEND  
BAS — Building Automation System  
DCV — Demand Controlled Ventilation  
ECM — Electronically Commutated Motor  
IAQ — Indoor Air Quality  
OAT — Outdoor Air Temperature  
RH  
Relative Humidity  
SAT — Supply Air Temperature  
SPT — Space Temperature  
TPI — Third Party Integration  
51  
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APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont)  
PASSWORD  
LEVEL  
SCREEN NAME  
POINT NAME  
Occupied Heating  
Occupied Cooling  
Unoccupied Heating  
Unoccupied Cooling  
EDITABLE  
RANGE  
DEFAULT  
NOTES  
Defines the Occupied  
Heating Set Point  
X
X
X
X
X
X
40 - 90  
55 - 99  
40 - 90  
55 - 99  
F
F
F
F
72  
76  
55  
90  
F
F
F
F
Defines the Occupied  
Cooling Set Point  
Defines the Unoccupied  
Heating Set Point  
Defines the Unoccupied  
Cooling Set Point  
Effective Heating  
Set Point  
Takes into effect bias (maximum  
allowable set point deviation)  
0 - 10  
0 - 10  
F
Effective Cooling  
Set Point  
Takes into effect bias (maximum  
allowable set point deviation)  
F
Uses historical data to calculate  
ramp up time so as to be at set point  
at occupied/unoccupied time  
Optimal Start  
Configuration  
Set Points  
Defines the control set point used  
during occupied periods (Viewable  
only if Humidity Sensor = Installed/  
Determines when to start  
User/Admin  
Password level  
access  
Occupied RH  
Set Point  
X
0 - 100%  
65%  
Dehumidification when occupied)  
Defines the control set point used  
during unoccupied periods  
(Viewable only if Humidity Sensor =  
Installed/Determines when to start  
Dehumidification when unoccupied)  
Unoccupied RH  
Set Point  
X
X
0 - 100%  
90%  
Defines the control set point used to  
start increasing ventilation during  
occupied periods (Viewable only if  
Ventilation DMP Type = DCV)  
DCV CTRL Start  
Set Point  
0 - 9999 ppm  
500 ppm  
Defines the control set point  
used to define where the ventilation  
will reach its maximum limit during  
DCV Max CTRL  
Set Point  
X
0 - 9999 ppm  
1050 ppm occupied periods (Viewable only if  
Ventilation DMP Type = DCV/Used  
to determine DCV ending control  
point)  
Defines the start time for an  
Start Time  
End Time  
Mon  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
00:00 - 23:59  
00:00 - 24:00  
No/Yes  
06:00  
occupied period  
Defines the ending time of an  
18:00  
occupied period  
Determines if this day is included  
Yes  
Configuration  
Schedule  
in this schedule  
Determines if this day is included  
Tue  
No/Yes  
Yes  
in this schedule  
User/Admin  
Password level  
access  
Determines if this day is included  
Wed  
No/Yes  
Yes  
in this schedule  
Determines if this day is included  
Thur  
No/Yes  
Yes  
in this schedule  
Determines if this day is included  
Weekly Schedule  
Fri  
No/Yes  
Yes  
in this schedule  
Determines if this day is included  
Sat  
No/Yes  
No  
in this schedule  
Determines if this day is included  
Sun  
No/Yes  
No  
in this schedule  
Defines the start month of this  
Start Month  
Start Day  
Start Time  
End Month  
End Day  
End Time  
0 - 12  
0
hoilday schedule  
Configuration  
Schedule  
Defines the start day of this holiday  
0 - 31  
0
schedule  
Determines the start time for this  
00:00 - 23:59  
0 - 12  
0:00  
User/Admin  
Password level  
access  
schedule  
Defines the month to end this  
0
hoilday schedule  
Defines the day to end this holiday  
0 - 31  
0
Exception  
Schedules 1 - 12  
schedule  
Determines the time to end this  
00:00 - 24:00  
0:00  
schedule  
LEGEND  
BAS — Building Automation System  
DCV — Demand Controlled Ventilation  
ECM — Electronically Commutated Motor  
IAQ — Indoor Air Quality  
OAT — Outdoor Air Temperature  
RH  
Relative Humidity  
SAT — Supply Air Temperature  
SPT — Space Temperature  
TPI — Third Party Integration  
52  
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APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont)  
PASSWORD  
LEVEL  
SCREEN NAME  
POINT NAME  
EDITABLE  
RANGE  
DEFAULT  
NOTES  
Auto= Intermittant operation during both  
occupied and unoccupied periods/  
Continuous = Intermittant during unoccupied  
periods and continuous during occupied  
periods/Always on = fan operates  
continuously during both occupied and  
unoccupied periods  
Auto/Continuous/  
Always On  
Fan Mode  
X
Continuous  
Defines the delay time before the fan begins  
to operate after heating or cooling is started  
Fan On Delay  
Fan Off Delay  
X
X
0 - 30 sec  
10 sec  
45 sec  
Defines the amount of time the fan will  
continue to operate after heating or  
cooling is stopped  
0 - 180 sec  
Provides capability to manually  
disable heating operation  
Heating Enable  
Cooling Enable  
X
X
X
X
Disable/Enable  
Disable/Enable  
Enable  
Enable  
Provides capability to manually  
disable cooling operation  
Minimum SAT in  
Cooling  
Defines the minimum acceptable operating  
temperature for the Supply Air  
40 - 60  
F
50  
F
Configuration  
Maximum SAT in  
Heating  
Defines the maximum acceptable operating  
temperature for the Supply Air  
80 - 140  
F
110  
F
Admin Password  
level access only  
Normally set to 100% if 2 position damper  
type or set to minimum ventilation position if  
damper type = DCV  
Damper Ventilation  
Position  
X
X
0 - 100%  
100%  
Unit  
Configuration  
DCV Maximum Vent  
Position  
Usually set at 100% - Used to limit maximum  
damper opening in DCV mode  
0 - 100%  
100%  
Filter Alarm Timer  
X
X
0 - 9999 hrs  
0 hrs  
Disables Filter Alarm if set to 0  
Pushbutton Override  
Disable/Enable  
Enable  
Enables Override Feature on Rnet sensor  
SPT Sensor Set Point  
Adjustment  
Enables Set Point adjustment capability  
on Rnet Sensor  
X
Disable/Enable  
Enable  
Cooling is locked out when OAT is less than  
configured value and OAT is actively being  
broadcast  
Lockout Cooling if  
OAT <  
X
-65 - 80  
35 - 150  
F
F
-65  
F
F
Heating is locked out when OAT is greater  
than configured value and OAT is actively  
being broadcast  
Lockout Heating if  
OAT >  
X
150  
Power Fail Restart  
Delay  
X
X
X
0 - 600 sec  
60 sec  
Enable  
Delay before equipment starts  
Occupancy Schedules  
Disable/Enable  
Enables unit occupied  
Used to enforce minimum  
set point separation  
Set Point Separation  
2 - 9  
F
4
F
Used to enable test mode. Will automatically  
reset to disable after 1 hour  
Test Mode  
Fan Test  
X
X
Disable/Enable  
Disable/Enable  
Disable  
Disable  
Used to test all fan speeds. Sequences fan  
from low to high and operates each speed for  
1 minute. Resets to disable on completion  
Off/Low Speed/Medium  
Speed/High Speed/On  
Fan Speed  
Displays current fan operation  
Used to test compressor cooling and heating  
operation. Sequences cooling stage 1, then  
stage 2, then heating stage 2 and reduces  
capacity to stage 1. Operates for 1 minute per  
step. Resets to disable on completion.  
Compressor Test  
X
X
Disable/Enable  
Disable  
Disable  
Used to test dehumification mode -  
Operates for 2 minutes. Resets to  
disable on completion.  
Configuration  
Service  
Dehumidification Test  
Testing Compressor  
Disable/Enable  
Inactive/Heating/Cooling/  
Dehumidify/TimeGard  
Wait  
Admin Password  
level access only  
Displays compressor test mode  
Used to test auxiliary heat.  
Sequences fan on and enables  
heating coil for 1 minute. Resets to  
disable on completion  
Aux Heating Test  
X
X
Disable/Enable  
Disable/Enable  
Disable  
Disable  
Test  
Used to test entering/return air water loop  
economizer coil operation. Sequences fan on  
and opens economizer coil water valve for 1  
minute. Resets to disable on completion  
H O Economizer Test  
2
Preposition OA  
Damper  
Used to preposition OA damper  
actuator to set proper preload  
X
X
Disable/Enable  
Disable/Enable  
Disable  
Disable  
Open Vent  
Damper 100%  
Used to test OA damper operation  
Displays SAT  
SAT  
F
F
Displays Leaving Condenser  
Water Temperature  
LCWT  
LEGEND  
BAS — Building Automation System  
DCV — Demand Controlled Ventilation  
ECM — Electronically Commutated Motor  
IAQ — Indoor Air Quality  
OAT — Outdoor Air Temperature  
RH  
Relative Humidity  
SAT — Supply Air Temperature  
SPT — Space Temperature  
TPI — Third Party Integration  
53  
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APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont)  
PASSWORD  
LEVEL  
SCREEN NAME  
POINT NAME  
EDITABLE  
RANGE  
DEFAULT  
NOTES  
Used to set number of  
fan motor speeds  
# of Fan Speeds  
X
1,2,3  
3
When set to Fan On, G output is  
energized when ever any fan speed  
is active (required for ECM and Fan  
control board). When set to Fan  
Low, output is only energized for  
Low Speed  
G Output Type  
X
Fan On/Fan Low  
Fan On  
Defines the number of  
stages of compression  
Compressor Stages  
Reversing Valve Type  
X
X
X
X
X
X
X
One Stage/Two Stages  
One Stage  
O type  
None  
Determines reversing valve  
signal output type  
O type output/B type output  
Leaving Air Auxiliary  
Heat Type  
None/2-Position HW/1 Stage  
Electric/Modulating HW  
Determines Auxiliary  
Reheat Coil Type  
Entering Air Water  
Economizer Type  
Determines Entering Air  
Economizer Coil Type  
None/2-Position/Modulating  
Normally Closed/Normally Open  
Normally Closed/Normally Open  
None/2-Position/DCV  
None  
2-Position Water  
Valve Type  
Normally  
Closed  
Determines type of 2-position  
water valve used  
Modulating Water  
Valve Type  
Normally  
Closed  
Determines type of modulating  
water valve used  
Ventilation Damper  
Type  
Determines type of ventilation  
damper control to be used  
None  
0-10 volt  
None  
Used to determine ventilation  
damper output signal range  
(closed - open)  
Damper Actuator Type  
Humidity Sensor  
X
X
X
(0-10 volt)/(2-10 volt)  
None/Installed  
Set to Installed if humidity  
sensor is present  
Configuration  
Admin Password  
level access only  
Set to Installed if factory-installed  
dehumidification reheat coil  
is present  
Factory Dehumidifica-  
tion Reheat Coil  
None/Installed  
None  
Service  
Configuration  
Occupancy  
Input Logic  
Occupied  
Used to determine external occu-  
X
X
X
Occupied Open/Occupied Closed  
5 - 600 seconds  
CLOSED pancy switch contact occupied state  
Condensate Switch  
Alarm Delay  
Delay before equipment alarms on  
10 sec  
high condensate level  
Condensate Switch  
Alarm State  
Alarm  
CLOSED  
Determine Alarm state of  
condensate switch input  
Alarm OPEN/Alarm CLOSED  
Minimum Condenser  
Water Temperature in  
Heating  
Determines the minimum  
acceptable water loop temperature  
to start heating  
X
X
X
X
25 - 60  
F
60  
90  
60  
95  
F
F
F
F
Maximum Condenser  
Water Temperature in  
Heating  
Determines the maximum  
acceptable water loop temperature  
to start heating  
65 - 100  
F
Minimum Condenser  
Water Temperature in  
Cooling  
Determines the minimum  
acceptable water loop temperature  
to start cooling  
30 - 60  
F
Maximum Condenser  
Water Temperature in  
Cooling  
Determines the maximum  
acceptable water loop temperature  
to start cooling  
85 - 120  
F
IAQ sensor  
Minimum output current (mA)  
for IAQ sensor  
X
X
X
X
0 - 5 ma  
4 ma  
20 ma  
minimum input  
IAQ sensor  
maximum input  
Maximum output current (mA) for  
IAQ sensor  
5 - 20 ma  
IAQ sensor  
minimum output  
Corresponding value in ppm for  
minimum output current  
0 - 9999 ppm  
0 - 9999 ppm  
0 ppm  
IAQ sensor  
maximum output  
Corresponding value in ppm for  
maximum output current  
2000 ppm  
LEGEND  
BAS — Building Automation System  
DCV — Demand Controlled Ventilation  
ECM — Electronically Commutated Motor  
IAQ — Indoor Air Quality  
OAT — Outdoor Air Temperature  
RH  
Relative Humidity  
SAT — Supply Air Temperature  
SPT — Space Temperature  
TPI — Third Party Integration  
54  
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APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont)  
PASSWORD  
LEVEL  
SCREEN NAME  
POINT NAME  
EDITABLE  
RANGE  
DEFAULT  
NOTES  
Defines the hysteresis applied above  
the cooling and below the heating set  
points before an alarm condition will  
occur  
SPT Occupied Alarm  
Hysteresis  
X
2 - 20  
F
5
F
Used to calculate the delay time before  
an alarm is generated after the alarm  
condition occurs  
SPT Alarm Delay  
X
0 - 30 min per degree  
10 min  
SPT Unoccupied Low  
Alarm Temperature  
Defines the fixed unoccupied  
ow SPT alarm limit  
X
X
X
X
35 - 90  
F
45  
95  
45  
F
F
F
SPT Unoccupied High  
Alarm Temperature  
Defines the fixed unoccupied  
high SPT alarm limit  
45 - 100  
F
SAT Low SAT  
Alarm Limit  
Defines the fixed minimum  
SAT alarm limit  
15 - 90  
F
SAT High SAT  
Alarm Limit  
Defines the fixed maximum  
SAT alarm limit  
90 - 175  
F
120  
F
Defines the delay time before an alarm  
is generated after the alarm condition  
occurs  
Condensate Overflow  
Alarm Delay  
X
X
X
5 - 600 sec  
45% - 100%  
10 sec  
100%  
5 min  
Space Humidity Occupied  
High Alarm Limit  
Defines the fixed occupied  
high space RH alarm limit  
Used to calculate the delay time before  
an alarm is generated after the alarm  
condition occurs  
Space Humidity Alarm  
Delay  
0 - 30 min per % RH  
Configuration  
Admin Password Space Humidity Unoccu-  
Defines the fixed unnoccupied  
high space RH alarm limit  
X
X
45% - 100%  
0 - 9999 ppm  
100%  
level access only  
pied High Alarm Limit  
Alarm  
Configuration  
IAQ/Ventilation Occupied  
High Alarm Limit  
Defines the fixed occupied high  
space IAQ/Ventilation alarm limit  
1100 ppm  
Used to calculate the delay time before  
0.25 min an alarm is generated after the alarm  
condition occurs  
IAQ/Ventilation  
Alarm Delay  
X
0.1 - 1.0 min per ppm  
Determines if the SPT alarm is  
Ignore  
Rnet Sensor SPT Alarm  
Rnet Sensor SAT Alarm  
X
X
Ignore/Display  
Ignore/Display  
displayed on the local Rnet sensor  
Determines if the SAT alarm is  
Ignore  
displayed on the local Rnet sensor  
Determines if the Compressor Lockout  
Rnet Sensor Compressor  
Lockout Alarm  
X
X
Ignore/Display  
Ignore/Display  
Display  
Display  
alarm is displayed on the local Rnet  
sensor  
Determines if the Condenser Water  
Temperature alarm is displayed on the  
local Rnet sensor  
Rnet Sensor Condenser  
Water Temperature Alarm  
Determines if the Condensate  
Overflow alarm is displayed on the  
local Rnet sensor  
Rnet Sensor Condensate  
Overflow Alarm  
X
X
X
Ignore/Display  
Ignore/Display  
Ignore/Display  
Display  
Display  
Ignore  
Rnet Sensor Dirty  
Filter Alarm  
Determines if the Dirty Filter alarm is  
displayed on the local Rnet sensor  
Determines if the High Space  
RH alarm is displayed on the  
local Rnet sensor  
Rnet Sensor Space  
High Humidity Alarm  
Loop Control Network  
Number  
See TPI  
See TPI  
See TPI  
Configuration  
Linkage  
Loop Control Network  
Address  
Number of Linked Heat  
Pumps  
LEGEND  
BAS — Building Automation System  
DCV — Demand Controlled Ventilation  
ECM — Electronically Commutated Motor  
IAQ — Indoor Air Quality  
OAT — Outdoor Air Temperature  
RH  
Relative Humidity  
SAT — Supply Air Temperature  
SPT — Space Temperature  
TPI — Third Party Integration  
55  
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Copyright 2010 Carrier Corporation  
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.  
Catalog No. 04-53500070-01  
Printed in U.S.A.  
Form 50RTP-1SI  
Pg 58  
7-10  
Replaces: New  
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50RTP  
START-UP CHECKLIST  
CUSTOMER:___________________________  
MODEL NO.:___________________________  
JOB NAME: _______________________________________  
SERIAL NO.:____________________  
DATE:_________  
I. PRE-START-UP  
DOES THE UNIT VOLTAGE CORRESPOND WITH THE SUPPLY VOLTAGE AVAILABLE? (Y/N)  
HAVE THE POWER AND CONTROL WIRING CONNECTIONS BEEN MADE AND TERMINALS  
TIGHT? (Y/N)  
HAVE WATER CONNECTIONS BEEN MADE AND IS FLUID AVAILABLE AT HEAT EXCHANGER?  
(Y/N)  
HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN? (Y/N)  
HAS CONDENSATE CONNECTION BEEN MADE AND IS A TRAP INSTALLED? (Y/N)  
IS AN AIR FILTER INSTALLED? (Y/N)  
II. START-UP  
IS FAN OPERATING WHEN COMPRESSOR OPERATES? (Y/N)  
VERIFY PROPER ROTATION OF SCROLL COMPRESSOR PER INSTRUCTIONS. (Y/N)  
UNIT VOLTAGE — COOLING OPERATION  
PHASE AB VOLTS  
PHASE BC VOLTS  
PHASE CA VOLTS  
PHASE CA AMPS  
PHASE AB AMPS  
PHASE BC AMPS  
CONTROL VOLTAGE  
IS CONTROL VOLTAGE ABOVE 21.6 VOLTS? (Y/N)  
.
IF NOT, CHECK FOR PROPER TRANSFORMER CONNECTION.  
TEMPERATURES  
FILL IN THE ANALYSIS CHART ATTACHED.  
COAXIAL HEAT COOLING CYCLE:  
EXCHANGER  
FLUID IN  
F
F
F
F
FLUID OUT  
FLUID OUT  
AIR OUT  
F
PSI  
PSI  
FLOW  
FLOW  
HEATING CYCLE:  
FLUID IN  
F
F
F
AIR COIL  
COOLING CYCLE:  
AIR IN  
HEATING CYCLE:  
AIR IN  
AIR OUT  
CL-1  
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HEATING CYCLE ANALYSIS  
PSI  
SAT  
F
AIR  
COIL  
SUCTION  
F
F
COMPRESSOR  
DISCHARGE  
EXPANSION  
COAX  
VALVE  
F
LIQUID LINE  
F
F
PSI  
WATER IN  
PSI  
WATER OUT  
a50-8559  
COOLING CYCLE ANALYSIS  
a50-8560  
PSI  
SAT  
F
AIR  
COIL  
SUCTION  
F
F
COMPRESSOR  
EXPANSION  
COAX  
DISCHARGE  
VALVE  
F
LIQUID LINE  
F
F
PSI  
WATER IN  
PSI  
WATER OUT  
HEAT OF EXTRACTION (ABSORPTION) OR HEAT OF REJECTION =  
FLOW RATE (GPM) x TEMP. DIFF. (DEG. F) x  
FLUID FACTOR* =  
(Btu/hr)  
SUPERHEAT = SUCTION TEMPERATURE – SUCTION SATURATION TEMPERATURE  
(DEG F)  
=
SUBCOOLING = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE  
(DEG F)  
=
*Use 500 for water, 485 for antifreeze.  
Copyright 2010 Carrier Corporation  
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.  
Catalog No. 04-53500070-01 Printed in U.S.A. Form 50RTP-1SI Pg CL-2 7-10A 7-10 Replaces: New  
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