Carrier 33ZCFANTRM User Manual

Single Duct Air Terminal Zone Controller  
VAV Fan Terminal Zone Controller  
Secondary Terminal Zone Controller  
Installation, Start-Up and  
Configuration Instructions  
Part Numbers 33ZCFANTRM, 33ZCVAVTRM, 33ZCSECTRM  
Service Configuration Selection Screen. . . . . . . . . 37  
CONTENTS  
• AIRFLOW SERVICE CONFIGURATION SCREEN  
• TERMINAL SERVICE CONFIGURATION SCREEN  
• OPTIONS SERVICE CONFIGURATION SCREEN  
• SECONDARY DAMPER SERVICE  
Page  
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . 1  
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29  
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Zone Controller Hardware . . . . . . . . . . . . . . . . . . . . . . . . 2  
Field-Supplied Hardware . . . . . . . . . . . . . . . . . . . . . . . . . 2  
• SPACE TEMPERATURE SENSOR  
• PRIMARY AIR TEMPERATURE SENSOR  
• SUPPLY AIR TEMPERATURE (SAT) SENSOR  
• RELATIVE HUMIDITY SENSOR  
• INDOOR AIR QUALITY (CO2) SENSOR  
Mount Zone Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
• LOCATION  
CONFIGURATION SCREEN  
Maintenance Table Menu Screen . . . . . . . . . . . . . . . . 43  
• LINKAGE MAINTENANCE TABLE  
• OCCUPANCY MAINTENANCE TABLE  
• ZONE AIR BALANCE/COMMISSIONING TABLE  
• ZONE MAINTENANCE TABLE  
SAFETY CONSIDERATIONS  
SAFETY NOTE  
Air-handling equipment will provide safe and reliable  
service when operated within design specifications. The  
equipment should be operated and serviced only by  
authorized personnel who have a thorough knowledge  
of system operation, safety devices and emergency  
procedures.  
• MOUNTING  
Connect the Power Transformer. . . . . . . . . . . . . . . . . . 7  
Connect Airflow Pickups . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Install Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
• SPACE TEMPERATURE SENSOR INSTALLATION  
• PRIMARY AIR TEMPERATURE SENSOR  
INSTALLATION  
Good judgement should be used in applying any manu-  
facturer’s instructions to avoid injury to personnel or dam-  
age to equipment and property.  
• SUPPLY AIR TEMPERATURE (SAT) SENSOR  
INSTALLATION  
• INDOOR AIR QUALITY SENSOR INSTALLATION  
• HUMIDITY SENSOR (WALL-MOUNTED)  
INSTALLATION  
Remote Occupancy Contact. . . . . . . . . . . . . . . . . . . . . 26  
Connect the Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Modulating Baseboard Hydronic Heating. . . . . . . . 26  
Connect the CCN Communication Bus . . . . . . . . . . 26  
• COMMUNICATION BUS WIRE SPECIFICATIONS  
• CONNECTION TO THE COMMUNICATION BUS  
Disconnect all power to the unit before performing mainte-  
nance or service. Unit may automatically start if power is  
not disconnected. Electrical shock and personal injury  
could result.  
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-31  
Perform System Check-Out . . . . . . . . . . . . . . . . . . . . . 29  
Network Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
Initial Operation and Test. . . . . . . . . . . . . . . . . . . . . . . . 30  
Airflow Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
Fan and Heat Configuration and Test. . . . . . . . . . . . 30  
If it is necessary to remove and dispose of mercury contac-  
tors in electric heat section, follow all local, state, and fed-  
eral laws regarding disposal of equipment containing  
hazardous materials.  
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-50  
Points Display Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
Modify Controller Configuration. . . . . . . . . . . . . . . . . 32  
• ALARM LIMIT CONFIGURATION SCREEN  
• CONTROLLER IDENTIFICATION SCREEN  
• HOLIDAY CONFIGURATION SCREENS  
• LINKAGE COORDINATOR CONFIGURATION  
SCREEN  
• OCCUPANCY CONFIGURATION SCREEN  
• SET POINT SCREEN  
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.  
PC 111 Catalog No. 533-355 Printed in U.S.A. Form 33ZC-1SI Pg 1 303 11-99 Replaces: New  
Book  
1
4
Tab 11a 13a  
CCN  
SYSTEM  
MONITORING  
SOFTWARE  
CCN PRIMARY BUS (BUS 0)  
CC6400 OR CSAM  
EQUIPPED  
FULLY  
COMPATIBLE  
AIR HANDLER  
NON-CCN  
AIR HANDLER  
BRIDGE  
(RECOMMENDED)  
COMFORTID  
EQUIPPED  
AIR TERMINAL  
(1 OF UP TO 128)  
ADDRESSED  
SEQUENTIALLY  
SECONDARY BUS  
DATA  
COLLECTION  
OPTION  
LEGEND  
CCN — Carrier Comfort Network  
CSAM — Comfort System AirManager  
Fig. 1 — Typical Carrier Linkage System  
3
DAMPER  
SHAFT  
ACTUATOR  
CLAMP  
ASSEMBLY  
LOW PRESSURE  
TUBING ROUTING  
+24V  
SPT  
GND  
SAT  
RH/IAQ  
GND  
US  
C
FAN AC  
FAN  
MECHANICAL  
STOP  
SECFLOW  
+10V  
24VAC  
N/A  
HEAT3  
T56  
GROMMET  
DMPPOS  
GND  
GND  
1
0
PAT  
TEST  
REMOTE  
®
GND  
HF23BJ042  
Made in Switzerland  
by Belimo Automation  
ZONE Controller  
®
35 in-lb (4 Nm)  
80...110s  
CW  
COM  
COW  
+
+
LR 92800  
NEMA 2  
3art Number: 33ZCFANTRM  
S/N:  
Bus#:  
LISTED  
94D5  
TENP IND  
Element#:  
Unit#:  
&
ANTI-  
REG. EQUIP.  
ROTATION  
TAB  
Class 2 Supply  
24VAC/DC  
50/60 Hz  
3VA 2W  
J6  
+
5K  
COM  
6
1
WIP  
blu  
1
2
3
ACTUATOR  
RELEASE  
BUTTON  
yel  
ora  
red wht  
blk  
NOTE: Actuator clamp accepts dampers  
shafts with the following characteristics:  
Round — 1/4-in. to 5/8-in.  
(6 to 16 mm)  
HIGH  
PRESSURE  
TUBING  
Square — 1/4-in. to 7/16-in.  
(6 to 11 mm)  
ROUTING  
Damper shaft must be a minimum of 1.5-in.  
(38 mm) long.  
Fig. 2 Zone Controller Physical Details (33ZCFANTRM Shown)  
R E L AT I V E H U M I D I T Y S E N S O R The  
33AMSENRHS000 relative humidity sensor is required for  
zone humidity control (dehumidification).  
3. Press the release button on the actuator and rotate the  
clamp in the same direction that was required to close  
the damper in Step 2.  
NOTE: The relative humidity sensor and CO2 sensor cannot  
be used on the same zone controller.  
4. Press the release button on the actuator and rotate the  
actuator back one position graduation. Release the but-  
ton and lock the actuator in this position.  
5. Mount the zone controller to the terminal by sliding  
the damper shaft through the actuator clamp assembly.  
Secure the zone controller to the duct by installing  
the screw provided through the grommet in the anti-  
rotation tab. Be sure the floating grommet is in the  
center of the slot. Failure to center the grommet may  
cause the actuator to stick or bind.  
INDOOR AIR QUALITY (CO2) SENSOR — An indoor air  
quality sensor is required for optional demand control ventila-  
tion. The CGCDXSEN002A00 CO2 Sensor is an indoor,  
wall mounted sensor with an LED display. The  
CGCDXSEN003A00 CO2 Sensor is an indoor, wall mounted  
sensor without display.  
NOTE: The relative humidity sensor and CO2 sensor cannot  
be used on the same zone controller.  
6. Tighten the actuator clamp assembly to the damper  
shaft. Secure by tightening the two 10-mm nuts.  
Mount Zone Controller  
LOCATION — The zone controller must be mounted on the  
air terminal’s damper actuator shaft. For service access, there  
should be at least 12 in. of clearance between the front of the  
zone controller and adjacent surfaces. Refer to Fig. 6.  
MOUNTING — Perform the following steps to mount the  
zone controller:  
7. If the damper has less than 90 degrees of travel  
between the fully open and fully closed positions, then  
a mechanical stop must be set on the actuator. The  
mechanical stop prevents the damper from opening  
past the maximum damper position. To set the  
mechanical stop, perform the following procedure:  
1. Visually inspect the damper and determine the direc-  
tion in which the damper shaft moves to open the  
damper — clockwise (CW) or counterclockwise  
(CCW). Refer to Fig. 7.  
a. Press the actuator release button and rotate the  
damper to the fully open position.  
b. Using a Phillips screwdriver, loosen the appropri-  
ate stop clamp screw.  
c. Move the stop clamp screw so that it contacts the  
edge of the cam on the actuator. Secure the stop  
clamp screw in this position by tightening the  
screw.  
If the damper rotates CCW to open, it does not require  
any configuration changes.  
If the damper rotates CW to open, then the damper  
actuator logic must be reversed. This is done in the  
software when performing system start-up and damper  
calibration test. Do not attempt to change damper rota-  
tion by changing wiring. This will upset the damper  
position feedback potentiometer readings.  
8. Verify that the damper opens and closes. Press the  
actuator release button and rotate the damper. Verify  
that the damper does not rotate past the fully open  
position. Release the button and lock the damper in the  
fully open position.  
2. Rotate the damper shaft to the fully closed position.  
Note direction of rotation.  
801  
4
+24V  
SPT  
GND  
SAT  
RH/IAQ  
GND  
US  
C
FAN AC  
FAN  
SECFLOW  
+10V  
24VAC  
N/A  
HEAT3  
T56  
DMPPOS  
GND  
GND  
1
0
PAT  
TEST  
REMOTE  
®
GND  
HF23BJ042  
Made in Switzerland  
by Belimo Automation  
ZONE Controller  
®
35 in-lb (4 Nm)  
80...110s  
CW  
COM  
COW  
+
+
LR 92800  
NEMA 2  
Part Number: 33ZCFANTRM  
S/N:  
Bus#:  
LISTED  
94D5  
TENP IND  
Element#:  
Unit#:  
&
REG. EQUIP.  
Class 2 Supply  
24VAC/DC  
50/60 Hz  
3VA 2W  
J6  
+
5K  
COM  
6
1
WIP  
blu  
1
2
3
yel  
red wht  
ora  
blk  
Fig. 3 VAV Fan Terminal Zone Controller  
+24V  
RH/IAQ  
GND  
US  
C
SPT  
GND  
SAT  
T56  
SECFLOW  
+10V  
DMPPOS  
GND  
GND  
PAT  
1
0
TEST  
REMOTE  
®
GND  
HF23BJ042  
Made in Switzerland  
by Belimo Automation  
ZONE Controller  
®
35 in-lb (4 Nm)  
80...110s  
+
+
LR 92800  
NEMA 2  
Part Number: 33ZCVAVTRM  
S/N:  
Bus#:  
LISTED  
94D5  
TENP IND  
Element#:  
Unit#:  
&
REG. EQUIP.  
Class 2 Supply  
24VAC/DC  
50/60 Hz  
3VA 2W  
J6  
+
5K  
COM  
6
1
WIP  
blu  
1
2
3
yel  
red wht  
ora  
blk  
Fig. 4 Single Duct Air Terminal Zone Controller  
5
801  
®
US  
C
GND  
OUT  
+10V  
CW  
D
FLOW  
TPUT  
OV  
1
0
COM  
CCW  
MMON  
CW  
®
HF23BJ042  
ZONE Controller  
J1  
Made in Switzerland  
by Belimo Automation  
35 in-lb (4 Nm)  
80...110s  
LR 92800  
Part Number: 33ZCSECTRM  
S/N:  
NEMA2  
LISTED  
94D5  
TEMP. IND. & U  
L
REG. EQUIP.  
Unit#:  
Class 2 Supply  
24VAC/DC  
50/60Hz  
J2  
3VA  
2W  
5K  
COM  
1
6
WIP  
2
3
1
blk  
blu ora  
red wht  
yel  
Fig. 5 Secondary Terminal Zone Controller  
ALLOW 12CLEARANCE FOR SERVICE  
ACCESS TO CONTROL BOX  
3REF.  
ZONE  
CONTROLLER  
END VIEW INLET  
Fig. 6 Service Clearance for Zone Controller Mounting  
6
NOTE: Do not run sensor or communication wiring in the  
same conduit with line-voltage wiring.  
NOTE: An accessory conduit box (part no. 33ZCCONBOX) is  
available for conduit wiring connections to the zone controller.  
Perform the following steps to connect the power  
transformer:  
AIR  
FLOW  
1. Install the field-supplied transformer in an electrical  
enclosure that conforms to NEC and local codes.  
2. Connect 24 vac from the transformer as shown in the  
CW TO OPEN, CCW TO CLOSE  
applicable wiring diagram (Fig. 8A-J).  
Connect Airflow Pickups The zone controller de-  
termines velocity pressure by obtaining the difference between  
high and low duct pressure from two airflow pickups. The  
pickups are connected to barb fittings on the zone controller  
AIR  
FLOW  
1
with /4-in. polyethylene tubing. All piping for this purpose  
must conform to local codes.  
Figure 9 indicates the positions of the two barb fittings.  
Perform the following steps to install and connect the air-  
flow pickups:  
CCW TO OPEN, CW TO CLOSE  
1. Select a location on the air handlers supply air duct  
where the airflow pickups will be installed. The loca-  
tion should be one where there are at least three duct  
diameters of straight duct upstream of the pickups. If  
this requirement is not met, stable airflow measure-  
ments may not be possible.  
Fig. 7 Damper Configuration  
Connect the Power Transformer An individual,  
field-supplied, 24 vac power transformer is recommended for  
each zone controller. If multiple zone controllers are powered  
from one power transformer (100 va maximum for UL [Under-  
writersLaboratories] Class 2 conformance), maintain polarity  
on the power input terminals. All transformer secondaries are  
required to be grounded. Use only stranded copper conductors  
for all wiring to the zone controller. Wiring connections must  
be made in accordance with NEC (National Electrical Code)  
and local codes. Ground the transformer at the transformer lo-  
cation. Provide an 18-gage, green, chassis ground wire at the  
terminal.  
2. Mount the field-supplied airflow pickup(s) in the duct,  
following the manufacturer's directions. Two individ-  
ual pickups may be used, one for high pressure airflow  
and one for low pressure airflow. A dual pickup, which  
combines the two functions, may also be used. When  
using individual pickups, make sure that the one for  
high pressure airflow faces upstream, in the direction  
the air is coming from, and the one for low pressure  
airflow faces downstream, in the direction the air is  
going to.  
The power supply is 24 vac ± 10% at 40 va (50/60 Hz).  
1
3. Use field-supplied /4-in. tubing (rated for the applica-  
For 33ZCVAVTRM zone controllers, the power require-  
ment sizing allows for accessory water valves and for electric  
heat contactor(s). Water valves are limited to 15 va on both  
two-position and modulating hot water. The electric heat con-  
tactor(s) are limited to 10 va (holding) each.  
For 33ZCFANTRM zone controllers, the power require-  
ment sizing allows for accessory water valves and for the fan  
contactor. Water valves are limited to 8 va on both two-position  
and modulating hot water. The fan contactor is limited to  
11 va (holding).  
tion) to connect the high pressure airflow pickup to  
barb fitting P1 on the pressure transducer. At the zone  
controller, the P1 fitting is on the side with the filter  
installed. Be careful to avoid sharp bends in the tubing,  
because malfunctions may occur if the tubing is bent  
too sharply. Use at least 2 ft of tubing for reading  
stability.  
4. Use field-supplied 1/4-in. tubing (rated for the applica-  
tion) to connect the low pressure airflow pickup to  
barb fitting P2 on the pressure transducer. Be careful to  
avoid sharp bends in the tubing, because malfunctions  
may occur if the tubing is bent too sharply. Use at least  
2 feet of tubing for stability.  
NOTE: If a water valve or electric heat contactor exceeds  
these limits, or external contactors are required for electric  
heat, then it is recommended a 60 va transformer be used.  
The maximum rating for any output is 20 va.  
7
303  
8
9
303  
O P  
C L  
C O M  
10  
303  
11  
801  
12  
303  
13  
801  
801  
14  
24V*  
OP  
CL  
COM  
801  
15  
801  
16  
17  
303  
18  
3. Connect the sensor cable as follows:  
Install Sensors  
a. Connect one wire from the cable (RED) to the  
SPT terminal on the controller. Connect the other  
end of the wire to the left terminal on the SEN ter-  
minal block of the sensor.  
b. Connect another wire from the cable (BLACK) to  
the GND terminal on the controller. Connect the  
other end of the wire to the remaining open termi-  
nal on the SEN terminal block.  
c. On 33ZCT56SPT thermostats, connect the re-  
maining wire (WHITE/CLR) to the T56 terminal  
on the controller. Connect the other end of the  
wire to the right most terminal on the SET termi-  
nal block.  
d. In the control box, install a No. 6 ring type crimp  
lug on the shield drain wire. Install this lug under  
the mounting screw in the upper right corner of  
the controller (just above terminal T1).  
SPACE TEMPERATURE SENSOR INSTALLATION —  
A space temperature sensor must be installed for each zone  
controller. There are three types of SPT sensors available from  
Carrier: the 33ZCT55SPT space temperature sensor with timed  
override button, the 33ZCT56SPT space temperature sensor  
with timed override button and set point adjustment and the  
33ZCT58SPT with liquid crystal display. See Fig. 10.  
The space temperature sensor is used to measure the build-  
ing interior temperature and should be located on an interior  
building wall. The sensor wall plate accommodates the NEMA  
standard 2 x 4 junction box. The sensor can be mounted direct-  
ly on the wall surface if accpectable by local codes.  
Do not mount the sensor in drafty locations such as near air  
conditioining or heating ducts, over heat sources such as base-  
board heaters, radiators, or directly above wall mounted light-  
ing dimmers. Do not mount the sensor near a window which  
may be opened, near a wall corner, or a door. Sensors mounted  
in these areas will have inaccurate and erratic sensor readings.  
The sensor should be mounted approximately 5 ft from the  
floor, in an area representing the average temperature in the  
space. Allow at least 4 ft between the sensor and any corner  
and mount the sensor at least 2 ft from an open doorway.  
e. On 33ZCT56SPT thermostats install a jumper  
between the two center terminals (right SEN and  
left SET).  
Wiring the Space Temperature Sensor (33ZCT58SPT) The  
T58 space temperature sensor is wired differently than other  
conventional sensors. The T58 sends all its sensor information  
through the CCN bus to the zone controller that is is associated  
with. The SPT sensor wiring connections are not used. The T58  
sensor does not need to be directly wired to the zone controller.  
The T58 sensor may be powered by a separate 24-VAC pow-  
er supply or may be connected to the J1 24 VAC power termi-  
nals on the zone controller. Be sure that the polarity of the power  
supply connections are consistent. For multiple devices wired to  
the same power supply, all positive (+) and negative () termi-  
nals should be wired in the same polarity.  
Install the sensor as follows (see Fig. 11):  
1. Locate the two Allen type screws at the bottom of the  
sensor.  
2. Turn the two screws clockwise to release the cover  
from the sensor wall mounting plate.  
3. Lift the cover from the bottom and then release it from  
the top fasteners.  
4. Feed the wires from the electrical box through the  
opening in the center of the sensor mounting plate.  
5. Using two no. 6-32 x 1 mounting screws (provided  
with the sensor), secure the sensor to the electrical box.  
Wire the T58 sensor to the CCN. Connect the CCN + termi-  
nal to the RED signal wire (CCN+). Connect the CCN termi-  
nal to the BLACK signal wire (CCN). Connect the GND  
terminal to the WHITE/CLEAR signal wire (Ground). Refer to  
the T58 sensor Installation Instructions for more information  
on installing and wiring the sensor.  
6. Use 20 gage wire to connect the sensor to the control-  
ler. The wire is suitable for distances of up to 500 ft.  
Use a three-conductor shielded cable for the sensor  
and set point adjustment connections. The standard  
CCN communication cable may be used. If the set  
point adjustment (slidebar) is not required, then an  
unshielded, 18 or 20 gage, two-conductor, twisted pair  
cable may be used.  
IMPORTANT: The T58 sensor must be configured with  
the bus address and device type of the zone controller  
before it will broadcast temperature to the zone control-  
ler. Refer to the T58 sensor Installation Instructions for  
more information on configuring the sensor.  
The CCN network service jack requires a separate,  
shielded CCN communication cable. Always use sepa-  
rate cables for CCN communication and sensor wir-  
ing. (Refer to Fig. 12 for wire terminations.)  
Wiring the CCN Network Communication Service Jack —  
See Fig. 12, 13, and 14. To wire the service jack, perform the  
following:  
1. Strip back the jacket from the CCN communication  
cable(s) for at least 3 inches. Strip 1/4-in. of insulation  
from each conductor. Remove the shield and separate  
the drain wire from the cable. Twist together all the  
shield drain wires and fasten them together using an  
closed end crimp lug or a wire nut. Tape off any  
exposed bare wire to prevent shorting.  
7. Replace the cover by inserting the cover at the top of  
the mounting plate first, then swing the cover down  
over the lower portion. Rotate the two Allen head  
screws counterclockwise until the cover is secured to  
the mounting plate and locked in position.  
8. For more sensor information, see Table 1 for ther-  
mistor resistance vs temperature values.  
NOTE: Clean sensor with damp cloth only. Do not use  
solvents.  
Wiring the Space Temperature Sensor (33ZCT55SPT and  
33ZCT56SPT) To wire the sensor, perform the following  
(see Fig. 12 and 13):  
2. Connect the CCN + signal wire(s) (RED) to  
Terminal 5.  
3. Connect the CCN signal wire(s) (BLACK) to  
Terminal 2.  
1. Identify which cable is for the sensor wiring.  
4. Connect the CCN GND signal wire(s) (WHITE/CLR)  
to Terminal 4.  
2. Strip back the jacket from the cables for at least  
1
3-inches. Strip /4-in. of insulation from each conduc-  
tor. Cut the shield and drain wire from the sensor end  
of the cable.  
801  
19  
LOW PRESSURE  
TUBING  
0
1
HF23BJ042  
Made in Switzerland  
by Belimo Automation  
L
H
35 in-lb (4 Nm)  
80...110s  
L
R
9
2
8
0
0
NEMA2  
LISTED  
94D5  
& U  
TEMP. IND.  
L
REG. EQUIP.  
Class  
2
Supply  
24VAC/DC  
50/60Hz  
3VA  
2W  
5K  
COM  
1
WIP  
2
3
wht  
ora  
yel blu  
blk red  
HIGH PRESSURE  
TUBING  
NOTE: Minimum length of tubing is 2 ft.  
Fig. 9 Airflow Pickup Installation  
Warm  
Cool  
NOTE: Dimensions are in inches.  
Fig. 10 Space Temperature Sensor  
Fig. 11 Space Temperature Sensor and Wall  
(P/N 33ZCT56SPT Shown)  
Mounted Humidity Sensor Mounting  
20  
1
2
6
1
2
6
4
5
4
5
3
3
RED(+)  
RED(+)  
WHT(GND)  
WHT(GND)  
CCN COM  
CCN COM  
BLK(-)  
BLK(-)  
SET  
SEN  
SEN  
SW1  
SW1  
WHT  
(T56)  
BLK (GND)  
RED (SPT)  
BLK (GND)  
RED (SPT)  
SENSOR WIRING  
SENSOR WIRING  
JUMPER  
TERMINALS  
AS SHOWN  
Cool  
Warm  
Fig. 12 Space Temperature Sensor Wiring  
Fig. 13 Space Temperature Sensor Wiring  
(33ZCT55SPT)  
(33ZCT56SPT)  
Table 1 Thermistor Resistance vs Temperature Values for Space Temperature Sensor, Return-Air  
Temperature Sensor, and Supply-Air Temperature Sensor  
TEMP  
(C)  
TEMP  
(F)  
RESISTANCE  
(Ohms)  
40  
35  
30  
25  
20  
15  
10  
5  
40  
31  
22  
13  
4  
335,651  
242,195  
176,683  
130,243  
96,974  
72,895  
55,298  
42,315  
32,651  
25,395  
19,903  
15,714  
12,494  
10,000  
8,056  
5
14  
23  
0
32  
5
41  
10  
50  
15  
59  
20  
68  
25  
77  
30  
86  
35  
95  
6,530  
40  
104  
113  
122  
131  
140  
149  
158  
5,325  
45  
4,367  
50  
3,601  
55  
2,985  
60  
2,487  
65  
2,082  
70  
1,752  
21  
Wiring when distance between zone controller and space temperature sensor is 100 feet or less  
CCN COMM BUS  
100 FT. MAXIMUM  
3 COND COMM CABLE (TYP)  
2 COND TWISTED  
CABLE OR 3 COND  
CABLE (TEMP  
SENSOR WIRING) (TYP)  
ZONE  
AIR TERMINAL  
CONTROLLER  
UNIT (TYP)  
Cool  
Warm  
Cool  
Warm  
(TYP)  
SPACE  
TEMPERATURE  
SENSOR  
Wiring when distance between zone controller and space temperature sensor is greater than 100 feet  
CCN COMM BUS  
DISTANCE GREATER  
THAN 100 FT.  
2 COND TWISTED  
CABLE OR 3 COND  
CABLE (TEMP  
SENSOR WIRING) (TYP)  
ZONE  
AIR TERMINAL  
CONTROLLER  
Cool  
Warm  
UNIT (TYP)  
Cool  
Warm  
(TYP)  
SPACE  
TEMPERATURE  
SENSOR  
Fig. 14 Communication Bus Wiring to Zone Controller  
Before wiring the CCN connection, refer to the Connect to  
the CCN Communication Bus section on page 26, for commu-  
nication bus wiring and cable selection. The cable selected  
must be identical to the CCN communication bus wire used for  
the entire network.  
The other end of the communication bus cable must be con-  
nected to the remainder of the CCN communication bus. If the  
cable is installed as a T-tap into the bus, the cable length cannot  
exceed 100 ft. Wire the CCN service jack of the sensor in a  
daisy chain arrangement with other equipment. Refer to the  
Connect to the CCN Communication Bus section, page 26, for  
more details.  
22  
PRIMARY AIR TEMPERATURE SENSOR INSTALLA-  
TION A primary air temperature (PAT) sensor is used on a  
zone controller which is functioning as a Linkage Coordinator  
for a non CCN/Linkage compatible air source. The part num-  
ber is 33ZCSENPAT. See Fig. 15.  
When used on a zone controller, try to select a zone control-  
ler which will allow installation of the PAT sensor in the main  
trunk, as close to the air source as possible. See Fig. 16.  
If the unit is equipped with electric reheat, ensure that the  
sensor is installed at least 2 ft downstream of the electric heater.  
See Fig. 17 for the sensor location in this application.  
If the unit has an octopus connected directly at the dis-  
charge, install the sensor in the octopus. If the unit has an elec-  
tric heater, the two foot minimum distance between the sensor  
and the heater must be maintained. See Fig. 17 for the sensor  
location in this application.  
SUPPLY AIR TEMPERATURE (SAT) SENSOR INSTAL-  
LATION On terminals with heat, the SAT sensor is re-  
quired. The SAT must be installed in the duct downstream  
from the air terminal. The SAT sensor is also sometimes called  
a duct temperature (DT) sensor. The part number is  
33ZCSENSAT.  
Disconnect electrical power before wiring the zone control-  
ler. Electrical shock, personal injury, or damage to the zone  
controller can result.  
The SAT sensor probe is 6 inches in length. The tip of the  
probe must not touch the inside of the duct. Use field-supplied  
bushings as spacers when mounting the probe in a duct that is  
6 in. or less in diameter.  
Do not run sensor or relay wires in the same conduit or race-  
way with Class 1 AC or DC service wiring. Do not abrade, cut,  
or nick the outer jacket of the cable. Do not pull or draw cable  
with a force that may harm the physical or electrical properties.  
Avoid splices in any control wiring.  
If the unit is a cooling only unit, the SAT is not required.  
Perform the following steps to connect the SAT sensor to  
the zone controller:  
1. Locate the opening in the control box. Pass the sensor  
probe through the hole.  
2. Drill or punch a 1/4-in. hole in the duct downstream of  
the unit, at a location that conforms to the require-  
ments shown in Fig. 17.  
3. Use two field-supplied, self-drilling screws to secure  
the sensor probe to the duct. Use field-supplied bush-  
ings as spacers when installing the sensor probe in a  
duct 6 in. or less in diameter.  
Perform the following steps if state or local code requires  
the use of conduit, or if your installation requires a cable length  
of more than 8 ft:  
1. Remove the center knockout from a field-supplied 4 x  
2-in. junction box and secure the junction box to the  
duct at the location selected for the sensor probe.  
1
2. Drill a /2-in. hole in the duct through the opening in  
the junction box.  
3. Connect a 1/2-in. nominal field-supplied conduit  
between the zone controller enclosure and the junction  
box.  
4. Pass the sensor probe wires through the conduit and  
insert the probe in the duct. Use field-supplied bush-  
ings as spacers when installing the sensor probe in a  
duct 6 in. or less in diameter.  
5. Secure the probe to the duct with two field-supplied  
self-drilling screws.  
Fig. 15 Primary Air Temperature Sensor  
(Part Number 33ZCSENPAT)  
6. If you are extending cable length beyond 8 ft, use ple-  
num rated, 20 AWG, twisted pair wire.  
7. Connect the sensor leads to the zone controllers wir-  
ing harness terminal board at the terminals labeled  
SAT and GND.  
8. Neatly bundle and secure excess wire.  
INDOOR AIR QUALITY SENSOR INSTALLATION  
The indoor air quality (IAQ) sensor accessory monitors carbon  
dioxide levels. This information is used to modify the position  
of the outdoor air dampers to admit more outdoor air as  
required to provide the desired ventilation rate. Two types of  
sensors are supplied. The wall sensor can be used to monitor  
the conditioned air space; the duct sensor monitors the return  
air duct. Both wall and duct sensors use infrared technology to  
measure the levels of CO2 present in the air. The wall sensor is  
available with or without an LCD readout to display the CO2  
level in ppm. See Fig. 18.  
The sensor part number is 33ZCSENCO2. To mount the  
sensor, refer to the installation instructions shipped with the ac-  
cessory kit.  
Fig. 16 Primary Air Temperature Sensor  
Installation (Unit Discharge Location)  
800  
23  
UNIT WITH ELECTRIC REHEAT  
2 FT. MIN.  
AIR  
TERMINAL  
UNIT  
PRIMARY  
AIR INLET  
SAT  
ZC  
HEAT  
UNIT WITH OCTOPUS  
2 FT. MIN.  
AIR  
TERMINAL  
UNIT  
PRIMARY  
AIR INLET  
OCTOPUS  
SAT  
ZC  
HEAT  
ZC Zone Controller  
Fig. 17 Supply Air Temperature Probe (Part No. 33ZCSENSAT) Locations  
The CO2 sensors (33ZCSENCO2) factory set for a range of  
0 to 2000 ppm and a linear voltage output of 0 to 10 vdc.  
Figure 19 shows ventilation rates for various CO2 set points  
when outside air with a typical CO2 level of 350 ppm is used.  
Refer to the instructions supplied with the CO2 sensor for elec-  
trical requirements and terminal locations. The zone controller  
requires 24 vac 25 va transformer to provide power to the  
sensor.  
To convert the CO2 sensor into a duct-mounted CO2 sensor,  
the duct-mounted aspirator (33ZCASPCO2) will need to be  
purchased.  
To accurately monitor the quality of the air in the condi-  
tioned air space, locate the sensor near the return air grille so it  
senses the concentration of CO2 leaving the space. The sensor  
should be mounted in a location to avoid direct breath contact.  
Do not mount the space sensor in drafty areas such as near  
supply ducts, open windows, fans, or over heat sources. Allow  
at least 3 ft between the sensor and any corner. Avoid mounting  
the sensor where it is influenced by the supply air; the sensor  
gives inaccurate readings if the supply air is blown directly  
onto the sensor or if the supply air does not have a chance to  
mix with the room air before it is drawn into the return air  
stream.  
To accurately monitor the quality of the air in the return air  
duct, locate the sensor at least 6 in. upstream or 15 in. down-  
stream of a 90 degree turn in the duct. The downstream loca-  
tion is preferred. Mount the sensor in the center of the duct.  
5.625  
(14.3)  
5
(12.7)  
IMPORTANT: If the sensor is mounted in the return air  
duct, readjust the mixed-air dampers to allow a small  
amount of air to flow past the return air damper when-  
ever the mixing box is fully open to the outside air. If the  
damper is not properly adjusted to provide this mini-  
mum airflow, the sensor may not detect the indoor-air  
quality during the economizer cycle.  
0.25  
(0.8)  
3.25  
(8.3)  
1.125  
(2.9)  
Fig. 18 Indoor Air Quality (CO2) Sensor  
(33ZCSENCO2)  
303  
24  
The sensor must be mounted vertically on the wall. The  
Carrier logo should be oriented correctly when the sensor is  
properly mounted.  
DO NOT mount the sensor in drafty areas such as near heat-  
ing or air-conditioning ducts, open windows, fans, or over heat  
sources such as baseboard heaters, radiators, or wall-mounted  
light dimmers. Sensors mounted in those areas will produce in-  
accurate readings.  
Avoid corner locations. Allow at least 4 ft between the sen-  
sor and any corner. Airflow near corners tends to be reduced,  
resulting in erratic sensor readings.  
Sensor should be vertically mounted approximately 5 ft up  
from the floor, beside the space temperature sensor.  
For distances up to 500 feet, use a 3-conductor, 18 or 20  
AWG cable. A CCN communication cable can be used,  
although the shield is not required. The shield must be removed  
from the sensor end of the cable if this cable is used. See  
Fig. 22 for wiring details.  
The power for the sensor is provided by the control board.  
The board provides 24 vdc for the sensor. No additional power  
source is required.  
Fig. 19 Ventilation Rated Based on  
CO2 Set Point  
Indoor Air Quality Sensor Wiring To wire the sensors  
after they are mounted in the conditioned air space and return  
air duct, see Fig. 20 and the instructions shipped with the sen-  
sors. For each sensor, use two 2-conductor 18 AWG twisted-  
pair cables (unshielded) to connect the separate isolated 24 vac  
power source to the sensor and to connect the sensor to the con-  
trol board terminals. To connect the sensor to the control board,  
identify the positive (+) PIN-8 and ground (GND) PIN-7 termi-  
nals on the sensor and connect the positive terminal to terminal  
RH/IAQ and connect the ground terminal to terminal GND.  
To wire the sensor, perform the following:  
1. At the sensor, remove 4-in. of jacket from the cable.  
1
Strip /4-in. of insulation from each conductor. Route  
the cable through the wire clearance opening in the  
center of the sensor. See Fig. 22.  
HUMIDITY SENSOR (WALL-MOUNTED) INSTALLA-  
TION The accessory space humidity sensor is installed on  
an interior wall to measure the relative humidity of the air with-  
in the occupied space. See Fig. 21.  
The use of a standard 2- x 4-in. electrical box to accommo-  
date the wiring is recommended for installation. The sensor can  
be mounted directly on the wall, if acceptable by local codes.  
If the sensor is installed directly on a wall surface, install the  
humidity sensor using 2 screws and 2 hollow wall anchors  
(field-supplied); do not overtighten screws. See Fig. 11.  
2. Connect the RED wire to the sensor screw terminal  
marked (+).  
3. Install one lead from the resistor (supplied with the  
sensor) and the WHITE wire, into the sensor screw ter-  
minal marked (). After tightening the screw terminal,  
test the connection by pulling gently on the resistor  
lead.  
4. Connect the remaining lead from the resistor to the  
BLACK wire and secure using a closed end type crimp  
connector or wire nut.  
5. Using electrical tape, insulate any exposed resistor  
lead to prevent shorting.  
6. At the control box, remove the jacket from the cable  
and route the RED conductor over to the left side of  
the control board. Route the remaining conductors to  
the right side of the control board.  
Do NOT clean or touch the sensing element with chemical  
solvents; they can permanently damage the sensor.  
RH/IAQ  
GND  
21  
87  
0
1
HF23BJ042  
Made in Switzerland  
by Belimo Automation  
35 in-lb (4 Nm)  
80...110s  
LR 92800  
LINE  
24 VAC  
NEMA2  
VOLTAGE  
LISTED  
94D5  
TEMP. IND. & U  
L
SEPARATE  
REG. EQUIP.  
Class Supply  
2
ISOLATED  
POWER  
24VAC/DC  
50/60Hz  
3VA  
2W  
5K  
SUPPLY  
COM  
REQUIRED  
(24 VAC, 25 VA  
MINIMUM)  
WIP  
2
3
1
blu ora  
yel  
red wht  
blk  
*Do not connect to the same transformer that supplies power to the zone controller.  
Fig. 20 Indoor Air Quality Sensor Wiring  
25  
303  
Refer to the service configuration table and set the Heating  
Loop parameters as follows:  
Proportional Gain = 20.0  
Integral Gain = 0.5  
Derivative Gain = 0.0  
Start Value = 102.0  
Also, set the Ducted Heat decision to YES and set the Max-  
imum Duct Temperature decision equal to the design (maxi-  
mum) boiler water temperature minus 20 degrees, but not  
greater than 200 degrees F.  
Connect the CCN Communication Bus The  
zone controllers connect to the bus in a daisy chain arrange-  
ment. The zone controller may be installed on a primary CCN  
bus or on a secondary bus from the primary CCN bus. Con-  
necting to a secondary bus is recommended.  
At 9,600 baud, the number of controllers is limited to 128  
zones maximum, with a limit of 8 systems (Linkage Coordina-  
tor configured for at least 2 zones). Bus length may not exceed  
4000-ft, with no more than 60 devices on any 1000-ft section.  
Optically isolated RS-485 repeaters are required every 1000 ft.  
At 19,200 and 38,400 baud, the number of controllers  
is limited to 128 maximum, with no limit on the number of  
Linkage Coordinators. Bus length may not exceed 1000 ft.  
Fig. 21 Wall Mounted Relative Humidity Sensor  
(P/N 33AMSENRHS000)  
The first zone controller in a network connects directly to  
the bridge and the others are wired sequentially in a daisy chain  
fashion. Refer to Fig. 25 for an illustration of CCN Communi-  
cation Bus wiring.  
The CCN Communication Bus also connects to the zone  
controller space temperature sensor. Refer to the Install the  
Sensors section for sensor wiring instructions.  
7. Strip 1/4-in. of insulation from each conductor  
1
and equip each with a /4-in. female quick connect  
terminal.  
8. Connect the RED wire to terminal +24v on the control  
board.  
9. Connect the BLACK wire to terminal GND on the  
control board.  
COMMUNICATION BUS WIRE SPECIFICATIONS —  
The Carrier Comfort Network (CCN) Communication Bus  
wiring is field-supplied and field-installed. It consists of  
shielded three-conductor cable with drain (ground) wire. The  
cable selected must be identical to the CCN Communication  
Bus wire used for the entire network. See Table 2 for recom-  
mended cable.  
10. Connect the WHITE/CLEAR wire to terminal  
RH/IAQ on the control board.  
11. Connect shield to ground (if shielded wire is used).  
Remote Occupancy Contact The remote occu-  
pancy input (J4 pin 2) has the capability to be connected to a  
normally open or normally closed occupancy dry contact. Wire  
the dry contact as show in Fig. 23 between J4 Pin 2 and  
24 VAC J1 Pin 1. The 24 VAC necessary to supply the  
ComfortIDController remote occupancy contact input shall  
be supplied using the existing ComfortID Controller.  
Table 2 Recommended Cables  
MANUFACTURER  
Alpha  
American  
Belden  
CABLE PART NO.  
2413 or 5463  
A22503  
Connect the Outputs Wire the zone controllers  
outputs (fan, staged heat, valves) as shown in the applicable  
wiring diagrams in Fig. 8A-J.  
8772  
Columbia  
02525  
NOTE: Conductors and drain wire must be at least 20 AWG  
(American Wire Gage), stranded, and tinned copper. Individual con-  
ductors must be insulated with PVC, PVC/nylon, vinyl, teflon, or  
polyethylene. An aluminum/polyester 100% foil shield and an outer  
jacket of PVC, PVC/nylon, chrome vinyl, or Teflon with a minimum  
operating temperature range of 20° C to 60° C is required.  
Modulating Baseboard Hydronic Heating In-  
stall the water valve on the leaving water end of the baseboad  
heater. See Fig. 24. Observe the fluid flow direction when  
mounting the valve. Be sure to properly heat sink the valve and  
direct the flame away from the actuator and valve body when  
sweating the valve connections. Install the leaving water tem-  
perature sensor (33ZCSENCHG) on the hydronic heating coil  
as shown. The sensor accommodates nominal copper pipe  
from 1/2 to 1-in. (OD sizes from 5/8 to 1.125 in.). It should be  
secured to the pipe with the clamp supplied. If piping is larger  
than 1-in. nominal size, a field-supplied clamp must be used.  
Use fiberglass pipe insulation to insulate the sensor assembly.  
Refer to Fig. 8C and 8H to wire the modulating water valve  
and the sensor to the zone controller. Connect the leaving water  
temperature sensor to the controller using the wiring connec-  
tions shown for the SAT sensor. (NOTE: The leaving water  
temperature sensor replaces the SAT sensor in this application.)  
Use 18 or 20 AWG wire for all connections. The water valve  
actuator housing may be used as a junction box if the leaving  
water temperature sensor cable is not long enough and the sen-  
sor cable must be extended to reach the controller.  
CONNECTION TO THE COMMUNICATION BUS  
1. Strip the ends of the red, white, and black conductors  
of the communication bus cable.  
2. Connect one end of the communication bus cable to  
the bridge communication port labeled COMM2 (if  
connecting on a secondary bus).  
When connecting the communication bus cable, a  
color code system for the entire network is recom-  
mended to simplify installation and checkout. See  
Table 3 for the recommended color code.  
Table 3 Color Code Recommendations  
CCN BUS WIRE  
COLOR  
PLUG PIN  
NUMBER  
SIGNAL TYPE  
+
Red  
White  
Black  
1
2
3
Ground  
For modulating hydronic heating applications, the default  
configuration must be changed to properly control the valve.  
801  
26  
3. Connect the other end of the communication bus cable  
to the terminal block labeled CCN in the zone control-  
ler of the first air terminal. Following the color code  
in Table 3, connect the Red (+) wire to Terminal 1.  
Connect the White (ground) wire to Terminal 2. Con-  
nect the Black () wire to Terminal 3.  
4. Connect additional zone controllers in a daisy chain  
fashion, following the color coded wiring scheme in  
Table 3. Refer to Fig. 25.  
NOTE: The communication bus drain wires (shield) must  
be tied together at each zone controller. If the communica-  
tion bus is entirely within one building, the resulting contin-  
uous shield must be connected to ground at only one single  
point. If the communication bus cable exits from one build-  
ing and enters another building, connect the shields to  
ground at a lightning suppressor in each building where the  
cable enters or exits (one point only).  
3 CONDUCTOR  
20 AWG CABLE  
RED  
+
-
WHITE  
BLACK  
499  
RESISTOR  
(SUPPLIED  
W/SENSOR)  
SHIELD  
(IF USED)  
HUMIDITY SENSOR  
RH/IAQ  
GND  
+24V  
0
1
HF23BJ042  
Made in Switzerland  
by Belimo Automation  
35 in-lb (4 Nm)  
80...110s  
LR 92800  
NEMA2  
LISTED  
94D5  
TEMP. IND. & U  
L
REG. EQUIP.  
Class Supply  
2
24VAC/DC  
50/60Hz  
3VA  
2W  
5K  
COM  
WIP  
2
3
1
blk  
blu ora  
yel  
red wht  
Fig. 22 Humidity Sensor Wiring  
27  
303  
28  
33ZCSENCHG  
(SENSOR)  
FLOW  
1/2TUBE  
3/4TUBE  
1TUBE  
Fig. 24 Typical Water Valve and Sensor Installation  
1000 FT. MAXIMUM  
DRAIN WIRE (TYP)  
BLK (TYP)  
WHT (TYP)  
RED (TYP)  
GND  
1
2
3
4
1
2
3
1
2
3
1
2
3
1
2
3
CCN  
CCN  
CCN  
CCN  
COMM 2  
ZC  
(TYP)  
AIR TERMINAL  
UNIT (TYP)  
BRIDGE  
(RECOMMENDED)  
LEGEND  
CCN  
ZC  
Carrier Comfort Network  
Zone Controller  
Fig. 25 Communication Bus Wiring  
3. Check that all air duct connections are tight.  
START-UP  
4. At the air terminals, check fan and system controls for  
proper operation. Verify that actuator screws are prop-  
erly tightened.  
Use the Carrier network communication software to start up  
and configure the zone controller.  
All set-up and set point configurations are factory-set and  
field-adjustable.  
5. At the air terminals, check electrical system and con-  
nections of any optional electric reheat coil. If hot  
water reheat is used, check piping and valves against  
job drawings.  
6. At the air terminals, make sure that all balancing  
dampers at box outlets are in the fully open position.  
7. If using an air handler with field-installed controls,  
make sure controls and sensors have been installed and  
wired per manufacturer installation instructions.  
8. At air handlers, verify that the motor starter and, if  
applicable, the Hand/Off/Auto (HOA) switch are  
installed and wired.  
Changes can be made using the ComfortWORKS® soft-  
ware, ComfortVIEWsoftware, or Network Service Tool.  
The Network Service Tool is a portable interface device that al-  
lows the user to change system set-up and set points from a  
zone sensor or terminal control module. During start-up, the  
Carrier software can also be used to verify communication  
with each zone controller.  
For specific operating instructions, refer to the literature  
provided with the software.  
Perform System Check-Out  
NOTE: The HOA switch must be in the Off position.  
1. Check correctness and tightness of all power and com-  
munication connections.  
2. Check that all air terminals, ductwork, and zone con-  
trollers are properly installed and set according to  
installation instructions and job requirements.  
29  
800  
9. Check to be sure the area around the air handler(s) is  
clear of construction dirt and debris.  
elliptical damper inlet is supplied, then enter the inlet  
size in square inches in the Inlet Area decision.  
10. Check that final filters are installed in the air han-  
dler(s). Dust and debris can adversely affect system  
operation.  
11. Verify that the zone controller and the air handler con-  
trols are properly connected to the CCN bus.  
5. If the terminal damper closes in the CW direction, then  
no adjustment is required. Otherwise, locate the  
damper direction configuration decision (CW Rota-  
tion) and toggle the value to OPEN by using the space  
bar. This configuration decision is also located on the  
Terminal Service Configuration screen.  
6. After entering the area and rotation direction, verify  
operation of the damper. From the service tool Diag-  
nostic, Maintenance Screen, select the Zone Air  
Balance/Commissioning Table and force the Commis-  
sioning Mode point to Enable. Then select the  
Damper/Transducer Cal point and force this point to  
Enable. The controller automatically tests the actuator  
by fully closing the damper.  
Before starting the air source fan, make sure that dampers  
at the systems air terminals are not fully closed. Starting  
the fan with dampers closed will result in damage to the  
system ductwork.  
12. Remember to utilize good duct design and to provide  
sufficient straight duct at the inlet of the box. A mini-  
mum of three times the inlet size is recommended.  
It checks the fully closed position to determine if the  
control was properly mounted. It then opens the  
damper. The control scales the actual actuator travel  
range used to a 0 to 100% open value. Finally the con-  
trol will close the damper, test, and zero the pressure  
transducer. When completed, the control automatically  
removes the force from the Damper/Transducer Cal  
point. If a failure occurs at any point during the testing,  
the Auto-Calibration point at the bottom of the screen  
will indicate ALARM and the test will be aborted.  
Network Addressing Use the following method  
when all the zone controllers are installed and powered, and the  
SPT sensors are wired and functioning properly. This method  
can be used if no addresses have been set previously. The ad-  
dress of an individual zone controller may be set by using the  
address search function on the Service Tool software when it is  
directly connected to the service port of the zone controller and  
the CCN bus is disconnected. This is the standard method of  
setting the address.  
Addresses may also be set using the Service Tool Address  
Search Function if the zone controller is isolated from the CCN  
bus.  
Each zone controller will default to an address of 0, 140  
when its application software is initially loaded. Since multiple  
controllers will be on the same bus, a unique address must be  
assigned to each controller before the system can operate prop-  
erly. The assignment of controller addresses will be performed  
through software by using the Address Search function of the  
Network Service Tool, as follows:  
1. The software recognizes that the Zone Controller's ad-  
dress, stored in the zone controller memory, has not been  
written yet (this will be true when the unit is first powered  
up on the job, or after a jumper-initiated reset).  
2. Press the override button on the SPT (terminals J4-14 and  
J4-12 are shorted) for 1 to 10 seconds.  
3. The zone controller address changes from 0, 140 to 239,  
239 for a period of 15 minutes.  
4. Use Network Service Tool to change the address from  
239, 239 to a valid system address within 15 minutes.  
7. The actuator stroke has now been calibrated for the  
proper rotation.  
Airflow Check After the damper transducer calibration  
has been performed, the terminal is ready for an airflow check.  
To perform airflow check, make sure Terminal Type, Primary  
Inlet Size, and Probe Multiplier settings on the Terminal Ser-  
vice Configuration screen are configured. If all of the terminals  
were installed with the dampers open, it is acceptable to start  
the fan at this time. If it becomes difficult for the air source to  
provide the necessary static pressure for airflow testing, it may  
be necessary to calibrate the damper transducer for a majority  
of terminals and check temperatures and set points to be sure  
most will be controlling to less than maximum CFM when the  
air source is started.  
When the system fan is running and the static pressure is  
fairly stable access the Zone Air Balance/Commissioning table  
and force the Commissioning Mode Point to Enable. The sys-  
tem is now ready to enable maximum CFM and check if the  
airflow controls correctly with the maximum CFM set point.  
Read the Zone Air Balance/Commissioning table section on  
page 47 which describes the Zone Air Balance/Commissioning  
table and what adjustments can be made from this screen. If the  
maximum airflow function is working properly, the user can  
stop here and leave the rest of the airflow calibration for the air  
balance contractor.  
NOTE: If the address is not changed from 239, 239 to  
a valid system address within 15 minutes, the control-  
ler will revert to address 0, 140 and use of the override  
button will cause the address function to repeat. The  
operator MUST actively set the address even if the  
final desired address is 0, 140.  
If working with the air balance contractor, proceed with the  
minimum airflow calibration at this time. If this terminal is fan  
powered or the terminal was installed with heat, and the heat  
configuration was already performed, continue with the fan  
and heat test while the Zone Air Balance/Commissioning table  
is still being displayed.  
Initial Operation and Test Perform the following  
procedure:  
1. Apply 24 vac power to the control.  
2. Connect the service tool to the phone jack service port  
of the controller.  
3. Using the service tool, upload the controller from  
address assigned in Network Addressing section  
above.  
4. From the Terminal Service Configuration screen,  
properly configure the damper type and inlet size. If a  
round inlet is used, then enter the size directly in the  
Inlet Diameter decision. If a square, rectangular, or  
Fan and Heat Configuration and Test Per-  
form the following procedure to configure and test the fan and  
heat:  
1. Display the Terminal Service Configuration screen to  
make sure the proper Terminal Type and Heat Type are  
configured. See the Configuration section to answer  
questions about the individual configurations.  
2. From the Diagnostics Maintenance Screen select the  
Zone Air Balance/Commissioning table.  
3. Force the Commissioning Mode to Enable.  
501  
30  
4. If the terminal is a parallel or series powered fan box,  
force the Fan Override to Enable. If the damper is open  
it may have to be repositioned to the proper position  
depending on the box type. Damper percent change  
will be displayed. After the damper is positioned cor-  
rectly, the fan relay should energize and the fan should  
run for a few seconds.  
5. Make sure the fan runs and the Fan Override decision  
returns to disabled to ensure the fan is wired correctly  
for proper operation.  
6. Force the Heating Override to Enable. If the unit is a  
single duct unit, this must be done with the primary  
terminal at reheat set point. The damper will modulate  
to maintain the terminal reheat CFM. The heat outputs  
will be commanded to provide maximum heat. If the  
unit is a fan powered terminal, the fan must be on.  
TERMINAL TYPE Terminal type is the confirmation of  
the terminal type configuration in the SERVCONF Service  
Config table.  
Terminal Type: Display Units  
Default value  
ASCII  
SINGLDUCT  
SINGLDUCT, PAR  
Display Range  
FAN, SER FAN, DUALDUCT  
Network Access Read only  
CONTROLLING SETPOINT Controlling Setpoint will  
display either the heating master reference or the cooling mas-  
ter reference depending upon what mode the terminal is in. The  
display will default to the heating master reference and display  
the last controlling master reference when in neither heating  
nor cooling.  
Controlling  
Setpoint  
Display Units  
Default Value:  
F (C)  
NOTE: The CFM settings can be found under service con-  
figuration in the table AIRFLOW.  
40  
Display Range: 40 to 245  
Network Access: Read only  
CONFIGURATION  
SPACE TEMPERATURE Space temperature from 10 kΩ  
thermistor (Type III) located in the space.  
The following sections describe the computer configuration  
screens which are used to configure the zone controller. The  
screens shown may be displayed differently when using differ-  
ent Carrier software.  
Space  
Temperature:  
Display Units  
Default Value  
Display Range  
F (C)  
-40.0  
-40.0 to 245.0  
Network Access Read/Write  
Points Display Screen The Points Display screen  
allows the user to view the status of the air terminal controller  
points. See Table 4.  
TERMINAL MODE The terminal mode is determined by  
the equipment mode as reported by linkage and space require-  
ments determined by space temperature and set points. The  
ZEROCAL and COMMISS modes are the result of the activat-  
ing the commissioning maintenance table to perform terminal  
testing and commissioning.  
PRIMARY AIRFLOW Volume of primary air calculated  
for pressure reading from the velocity pressure pickup probe  
located in the input collar of the air terminal.  
Primary Airflow: Display Units  
Default Value  
cfm  
0
Display Range  
0 to 9999  
Network Access Read/Write  
PRIMARY DAMPER POSITION Damper position per-  
cent range of rotation determined by the transducer calibration  
procedure. The zone controller is designed be used on dampers  
with any range of rotation.  
Terminal Mode: Display Units  
Default Value  
ASCII  
COOL  
Display Range  
HEAT, COOL, VENT,  
FAN AND VENT, DEHUMID, WARM-  
UP, REHEAT, PRESSURE, EVAC, OFF,  
ZEROCAL, COMMISS  
Primary Damper  
Position:  
Display Units  
Default Value  
Display Range  
% open  
0
Network Access Read only  
0 to 100  
Network Access Read only  
Table 4 Points Display Screen  
DESCRIPTION  
Terminal Mode  
Terminal Type  
Controlling Setpoint  
Space Temperature  
Primary Airflow  
Primary Damper Position  
Supply Air Temperature  
Local Heating Capacity  
Terminal Fan  
DEFAULT  
COOL  
SINGLDUCT  
-40.0 F  
-40.0 F  
0 cfm  
POINT NAME  
MODE  
TYPE  
CNTSP  
SPT  
PRIFLO  
DMPPOS  
SAT  
100 %  
0.0 F  
0 %  
HCAP  
FAN  
Off  
Relative Humidity  
Air Quality (ppm)  
Secondary Airflow  
Primary Air Temperature  
Heat  
0 % RH  
0 ppm  
0 cfm  
0.0 F  
Dsable  
RH  
AQ  
SECFLO  
PATEMP  
HEAT  
801  
31  
SUPPLY AIR TEMPERATURE Temperature of the air  
leaving the zone controller downstream of any ducted heat  
source. Measured by a 10 kthermistor (Type III). This tem-  
perature is used to control the maximum discharge air to the  
space when local heat is active. The sensor is not required or  
recommended for cooling only terminals. If supply air temper-  
ature display is required by specification, on a cooling only  
box, a heat type other than zero must be configured. This  
will have no adverse affect on the operation of a cooling only  
terminal.  
Air Quality (ppm):Display units  
None shown (parts per  
million implied)  
0
Default Value  
Display range  
Network Access Read/Write  
0 to 5000  
SECONDARY AIRFLOW Airflow reading from the sec-  
ondary pressure transducer, supplied with the secondary actua-  
tor, intended for dual duct and pressure control applications.  
Secondary  
Airflow:  
Display Units  
Default Value  
Display Range  
cfm  
0
0 to 9999  
Supply  
Air Temperature: Display Units  
Default Value  
F (C)  
0.0  
Network Access Read/Write  
Display Range  
-40.0 to 245.0  
PRIMARY AIR TEMPERATURE Primary air tempera-  
ture from sensor (10 k, Type III), located in main trunk of  
ductwork for supply air provided by the air-handling equip-  
ment. Used for linkage coordination.  
Network Access Read/Write  
LOCAL HEATING CAPACITY When local heat at the  
terminal is enabled the percent of heat being delivered is deter-  
mined by the following formula for modulating (floating point)  
type heat:  
% Capacity = [(SAT - SPT)/(Maximum Duct Temp SPT )]  
The percent of heat delivered is determined by the follow-  
ing for two-position hot water or staged electric heat:  
Primary Air  
Temperature:  
Display Units  
Default Value  
Display Range  
F (C)  
0.0  
-40.0 to 245.0  
Network Access Read/Write  
% Output Capacity = (# of active stages/Total stages) * 100  
Local Heating  
HEAT ENABLE/DISABLE Provides enable/disable  
function for local heat at the terminal. When enabled the Local  
heat capacity function will run to operate the terminal heat.  
Capacity:  
Display Units  
Default Value  
Display range  
% output capacity  
0
Heat Display:  
Display Units  
Default Value  
Display Range  
Discrete ASCII  
Dsable  
0 to 100  
Network Access Read only  
Dsabe/Enable  
Network Access Read/Write  
TERMINAL FAN The commanded output for the terminal  
fan on a fan powered terminal.  
Modify Controller Configuration In Service  
Tool software, select the desired zone controller and access the  
Modify Controller Configuration Menu screen. This configura-  
tion screen is also displayed under CONFIGURE when using  
ComfortWORKS® and ComfortVIEWsoftware.  
Terminal Fan:  
Display Units  
Default Value  
Display Range  
Discrete ASCII  
Off  
Off/On  
Network Access Read/Write  
RELATIVE HUMIDITY Space Relative Humidity read-  
ing from the optional relative humidity sensor. Used by Hu-  
midity control function if configured.  
The Modify Controller Configuration Menu screen is used  
to access the Alarm Limit Configuration screen, Controller  
Identification screen, Holiday Configuration screen, Linkage  
Coordinator Configuration screen, Occupancy Configuration  
screen, and Set Point screen.  
ALARM LIMIT CONFIGURATION SCREEN The  
Alarm Limit Configuration screen is used to configure the  
alarm settings for the zone controller. See Table 5.  
Relative  
Humidity:  
Display Units  
Default Value  
Display Range  
% RH  
0
0 to 100  
Network Access Read/Write  
AIR QUALITY Indoor air quality reading from a CO2 sen-  
sor installed in the space. Used by Air Quality control function  
if configured.  
Table 5 Alarm Limit Configuration Screen  
DESCRIPTION  
Alarm Routing Control  
Re-Alarm Time  
DEFAULT  
00000000  
0
POINT NAME  
ROUTING  
RETIME  
SPT Occupied Hysteresis  
5.0 F  
SPTHYS  
Unoccupied SPT  
Low Limit  
High Limit  
40 F  
99 F  
LOWLIM  
HIGHLIM  
Occupied RH  
Low Limit  
High Limit  
10 %  
99 %  
LOWLIM  
HIGHLIM  
Unoccupied RH  
Low Limit  
High Limit  
0 %  
100 %  
LOWLIM  
HIGHLIM  
Air Quality  
Low Limit  
High limit  
250 ppm  
1200 ppm  
LOWLIM  
HIGHLIM  
High Velocity Pressure  
1.2 in. wg  
HIGHVP  
32  
801  
Alarm Routing Control This decision indicates which  
CCN system software or devices will receive and process  
alarms sent by the zone controller. This decision consists of  
eight digits each can be set to zero or one. A setting of 1 indi-  
cates alarms should be sent to this device. A setting of zero dis-  
ables alarm processing for that device. Currently the corre-  
sponding digits are configured for the following devices: first  
digit - user interface software; second digit - autodial gateway  
or Telink; fourth digit - alarm printer interface module; digits 3,  
and 5 through 8 - unused.  
Unoccupied Humidity Low Limit This configuration de-  
fines the lowest humidity that the unoccupied space can be  
before an alarm is generated.  
Unoccupied  
Humidity Low  
Limit:  
Units  
% humidity  
0 to 100%  
0
Range  
Default Value  
Unoccupied Humidity High Limit This configuration de-  
fines the highest humidity that the unoccupied space can be  
before an alarm is genenerated.  
Alarm Routing  
Control:  
Range  
Default Value  
00000000 to 11111111  
00000000  
Unoccupied  
Humidity High  
Limit:  
Re-Alarm Time This decision is used to configure the num-  
ber of minutes the zone controller will wait before an alarm  
condition which has not been corrected will be re-transmitted  
on the communications network. Re-alarming of an alarm con-  
dition will continue until the condition no longer exists.  
Units  
% humidity  
0 to 100%  
100  
Range  
Default Value  
Indoor Air Quality Low Limit This configuration defines  
the lowest CO2 level that the occupied space can have before  
an alarm is generated.  
Alarm Re-Alarm  
Time:  
Units  
Minutes  
0 to 1440  
0 (Disabled)  
Indoor Air Quality  
Low Limit:  
Range  
Units  
PPM (implied)  
0 to 5000  
250  
Default Value  
Range  
Space Temperature Occupied Hysteresis This configura-  
tion defines the range above the occupied high set point and be-  
low the occupied low set point that the space temperature must  
exceed for an alarm condition to exist during occupied hours.  
Default Value  
Indoor Air Quality High Limit This configuration defines  
the highest CO2 level that the occupied space can have before  
an alarm is generated.  
Space Temperature  
Occupied  
Indoor Air Quality  
High Limit:  
Units  
PPM  
0 to 5000 PPM  
1200  
Hysteresis:  
Units  
delta F (delta C)  
0.0 to 99.9  
5.0  
Range  
Range  
Default Value  
Default Value  
High Velocity Pressure This configuration defines the  
maximum velocity pressure the zone controller should see at  
the pickup mounted in the inlet of the terminal. This is also  
used by the zone controller to calculate the maximum CFM the  
terminal will be able to control to using the terminal inlet size  
configured in the service configuration table.  
Unoccupied Space Temperature Low Limit This configu-  
ration defines the lowest temperature that the unoccupied space  
can be before an alarm is generated.  
Unoccupied Space  
Temperature  
Low Limit:  
Units  
F (C)  
0 to 255 F  
40  
High Velocity  
Pressure:  
Range  
Units  
in. wg  
0.0 to 2.0 in. wg  
1.2  
Default Value  
Range  
Unoccupied Space Temperature High Limit This configu-  
ration defines the highest temperature that the unoccupied  
space can be before an alarm is generated.  
Default Value  
CONTROLLER IDENTIFICATION SCREEN The con-  
troller identification screen displays the device information for  
the zone controller.  
HOLIDAY CONFIGURATION SCREENS The zone  
controller has configuration screens for up to 12 different holi-  
day schedules. Highlight the holiday name on the screen and  
press enter to configure the holiday schedule. A separate screen  
is used to ENTER the Holiday schedule.  
Unoccupied Space  
Temperature  
High Limit:  
Units  
F (C)  
0 to 255 F  
99  
Range  
Default Value  
Occupied Humidity Low Limit This configuration defines  
the lowest humidity that the occupied space can be before an  
alarm is generated.  
Start Month The start month is the month in which the hol-  
iday starts. Months are represented by numbers with 1 repre-  
senting January, 2 February, up to 12.  
Occupied Humidity  
Low Limit:  
Units  
% humidity  
0 to 100%  
10  
Start Month:  
Range  
Default Value  
1 to 12  
1
Range  
Default Value  
Start Day The start day is the day on which the holiday will  
start.  
Occupied Humidity High Limit This configuration de-  
fines the highest humidity that the occupied space can be be-  
fore an alarm is generated.  
Start Day:  
Range  
Default Value  
1 to 31  
1
Occupied Humidity  
Duration Length of time, in days, that the holiday will last.  
High Limit:  
Units  
% humidity  
0 to 100%  
99  
Range  
Default Value  
Duration:  
Range  
Default Value  
0 to 365  
0
33  
801  
LINKAGE  
COORDINATOR  
CONFIGURATION  
Air Source Bus and Element Number The Air Source Bus  
and Element Number configurations define the address of the  
air source providing conditioned air to the zones controlled by  
the linkage coordinator. If the address is left at zero, the Link-  
age coordinator will look for a primary air sensor to determine  
the equipment mode. If no primary air sensor is installed, or the  
sensor fails, the Linkage Coordinator will default the air source  
mode to Cooling.  
SCREEN The Linkage Coordinator Configuration screen  
allows the user to set the linkage coordinator configuration set-  
tings. See Table 6.  
Linkage Master Zone This decision defines if the zone  
controller will function as a Linkage Coordinator (Linkage  
Master) for itself and other zones.  
If the zone controller is to use a supply air sensor for stand-  
alone operation, this configuration must be configured to No  
and the number of Zones to 1.  
If the zone controller will use its primary air sensor to deter-  
mine the air handler mode for a number of zone controllers,  
configure this configuration to Yes, input the number of zones,  
and leave the air source decisions at the default values of zero.  
Air Source  
Bus Number:  
Range  
Default Value  
0 to 240  
0
Air Source  
Element Number:  
0 to 240  
0
Default Value  
If this zone controller will communicate linkage informa-  
tion with an air source, configure this configuration to Yes. The  
number of zones must be configured and the address of the air  
source entered.  
Static Pressure Reset Air systems designed with diversity  
(airflow required with all zones at maximum cfm exceeds de-  
sign capacity of air handler) are capable of providing enough  
CFM to all zones on days when conditions meet the demand at  
design static. At other times, the air system does not require the  
design static to meet the load requirements.  
Static pressure reset allows the static pressure set point on  
the air source to be reset whenever the system load is reduced  
from the design maximum. The zone controller will then moni-  
tor damper positions. When the system dampers are modulat-  
ing at lower damper positions due to the higher static, the static  
pressure will then be reset to a lower value allowing the damp-  
ers to open more. This allows the system to automatically make  
adjustments to the static pressure and optimize performance of  
the fan which will reduce energy consumption.  
The linkage coordinator monitors the position of all damp-  
ers in its system. When any zones maximum damper position  
reaches the Reset Maximum Damper Position, the linkage co-  
ordinator will reduce the value of the reset variable.  
The Maximum Damper Position and Static Pressure Reset  
values can be viewed on the Linkage maintenance screen.  
Linkage  
Master Zone:  
Range  
Default Value  
Yes/No  
No  
Number of Zones This decision defines the number of zone  
controllers (including itself) for the Linkage Coordinator to  
scan and include as part of the average temperature, set points,  
and occupancy information to the air source. The address of the  
zone controller functioning as a Linkage Coordinator must be  
larger than the number of zones configured. The zone control-  
ler will scan addresses less than its own, including information  
for as many zones as are configured. Other zone controller con-  
figured as linkage coordinators will also be included, so it is  
possible to have zones scanned by more than one linkage coor-  
dinator. Therefore care must be taken in addressing to prevent  
overlapping systems, unless overlapping systems is necessary.  
In large buildings the use of bridges and multiple busses is rec-  
ommended to improve communication and provide system  
differentiation.  
NOTE: The static pressure set point configured in the air  
source should be the desired maximum (zero reset) static  
pressure.  
Number of  
Zones:  
Range  
Default Value  
1 to 128  
1
Table 6 Linkage Coordinator Configuration Screen  
DESCRIPTION  
DEFAULT  
POINT NAME  
Zone Linkage  
Linkage Master Zone  
Number of Zones  
Air Source Bus Number  
Air Source Element Number  
Static Pressure Reset  
No  
1
0
MZENA  
NSYSTZ  
ASBUSN  
ASELEMN  
0
Reset Minimum Damper Position  
Reset Maximum Damper Position  
Maximum Reset  
SP Reset Variable Name  
CCN Linkage Data  
50 %  
80 %  
0.0 in. wg  
(blank)  
MINDP  
MAXDP  
SPMAX  
SPRVAR  
CCN Variable Name  
CCN Function Configuration  
Data Transfer Rate  
(blank)  
3
10 minutes  
(blank)  
CCNVAR  
CCNFUNC  
DATARATE  
CCNOUTP  
DESTBUSN  
DESTELEN  
CCN Output Point  
Destination Bus Number  
Destination Element Number  
Temperature Sensor Grouping  
Temperature Sensor Mode  
Temperature Sensor Configuration  
Broadcast Device ID  
0
0
1
1
1
BRD_RECV  
SENSCFG  
BRDDEVID  
801  
34  
Reset Minimum  
Damper Position: Units  
Range  
Temp Sensor Grouping Each ComfortIDcontroller has  
the capability to broadcast the associated space temperature  
sensors data or listen to another controllers sensor data over  
the network. All controllers sharing the same sensor must be  
installed on the same CCN bus.  
%
0 to 99  
50  
Default Value  
Reset Maximum  
Damper Position: Units  
Range  
%
0 to 99  
80  
in. wg  
0.0 to 5.0  
0.0  
There are three configuration decisions that must be config-  
ured in order to share sensors. The Temp Sensor Mode is used  
to specify if a controller will use its own local sensor, broadcast  
its local sensor, or listed to another controllers sensor broad-  
cast. The Temp Sensor Config is used to specify if the control-  
ler is sharging the space temperature information only or the  
space temperature and temperature offset slidebar information.  
The Broadcast Device ID decision is used to specify which  
controller number a zone will listen for when configured to  
receive another controllers broadcast.  
Default Value  
Maximum Reset: Units  
Range  
Default Value  
Static Pressure Reset  
Variable Name: Units  
Range  
ASCII (8 characters)  
A-Z,0-9  
*
Default Value  
Temp Sensor  
Mode:  
*To use Static Pressure Reset with a Comfort System  
AirManager, configure the variable name to SPRESET.  
Units  
Range  
none  
1 = Local Sensor,  
Currently, to make use of the static reset information, a cus-  
tom program must be written in a Comfort Controller to read  
the reset value and change the set point of the static pressure  
control in the air source. Use this configuration to create a vari-  
able name (Static Pressure Reset Value). See the application  
manual for information about creating this custom program.  
The Comfort System AirManagercontrol has an internal  
SPRESET variable which functions to accept the static pres-  
sure reset value from the linkage coordinator (refer to the Air  
Manager manual for configuration setup).  
CCN Linkage Data A zone controller configured as a  
Linkage master has the ability to poll its slaves and collect the  
high, low or average value of any variable within its slaves.  
Once the high, low or average is determined, the master can  
then transfer that value to a configured bus number, element  
number and point name. Typically this feature is used to deter-  
mine a systems highest indoor air quality reading.  
In order to utilize this feature the CCN Variable Name being  
collected from the slaves must be supplied. The data transfer  
rate must be specified and whether the high, low, or average  
value is being determined. After the value has been deter-  
mined, a valid point name and CCN address to transfer the  
value to must be entered.  
2 = Broadcast, 3 = Listen  
1
Default Value  
Temp Sensor  
Config:  
Units  
none  
Range  
1 = SPT, 2 = SPT and  
offset  
1
Default Value  
Broadcast  
Device ID:  
Units  
None  
1-239  
1
Range  
Default Value  
OCCUPANCY CONFIGURATION SCREEN The Oc-  
cupancy Configuration screen is used to set the occupied  
schedule. See Table 7.  
Manual Override Hours The Manual Override Hours deci-  
sion is used to command a timed override by entering the num-  
ber of hours the override will be in effect.  
If the occupancy schedule is occupied when this number is  
downloaded, the current occupancy period will be extended by  
the number of hours downloaded.  
If the current occupancy period is unoccupied when the oc-  
cupancy override is initiated, the mode will change to occupied  
for the duration of the number of hours downloaded.  
If the occupancy override will end after the start of the next  
occupancy period, the mode will transition from occupancy  
override to occupied without becoming unoccupied, and the  
occupancy override timer will be reset.  
An active occupancy override or a pending occupancy over-  
ride may be canceled by downloading a zero to this configura-  
tion. Once a number other than zero has been downloaded to  
this configuration any subsequent downloads of any value oth-  
er than zero will be ignored by the zone controller.  
CCN Variable  
Name:  
Units  
Range  
ASCII (8 Characters)  
A-Z, 0-9  
(blank)  
Default Value  
CCN Function  
Config:  
Units  
Range  
none  
0 = none, 1 = average,  
2 = low, 3 = high  
3
Default Value  
Data Transfer  
Rate:  
Units  
Range  
minutes  
1-15  
10  
Manual Override  
Hours:  
Units  
hours  
0 to 4  
0
Default Value  
Range  
Default Value  
CCN Output  
Point:  
Units  
Range  
ASCII (8 Characters)  
A-Z, 0-9  
(blank)  
Occupancy Scheduling For flexibility of scheduling, the  
occupancy programming is broken into eight separate periods.  
For each period the scheduling, the active days of the week,  
occupied start time, and occupied stop time needs to be  
configured.  
Day of Week This configuration consists of eight fields  
corresponding to the seven days of the week and a holiday  
field in the following order: Monday, Tuesday, Wednesday,  
Thursday, Friday, Saturday, Sunday, Holiday. A separate con-  
figuration screen is used.  
Default Value  
Destination Bus  
Number:  
Units  
Range  
none  
0-239  
0
Default Value  
Destination  
Element Number: Units  
Range  
none  
0-239 (0 = disabled)  
0
Default Value  
35  
801  
Table 7 Occupancy Schedule Information Screen  
DESCRIPTION  
Manual Override Hours  
DEFAULT  
0
POINT NAME  
OVRD  
Period 1: Day of Week  
Period 1: Occupied From  
Period 1: Occupied To  
Period 2: Day of Week  
Period 2: Occupied From  
Period 2: Occupied To  
Period 3: Day of Week  
Period 3: Occupied From  
Period 3: Occupied To  
Period 4: Day of Week  
Period 4: Occupied From  
Period 4: Occupied To  
Period 5: Day of Week  
Period 5: Occupied From  
Period 5: Occupied To  
Period 6: Day of Week  
Period 6: Occupied From  
Period 6: Occupied To  
Period 7: Day of Week  
Period 7: Occupied From  
Period 7: Occupied To  
Period 8: Day of Week  
Period 8: Occupied From  
Period 8: Occupied To  
11111111  
00:00  
24:00  
00000000  
00:00  
24:00  
00000000  
00:00  
24:00  
00000000  
00:00  
24:00  
00000000  
00:00  
24:00  
00000000  
00:00  
24:00  
00000000  
00:00  
24:00  
00000000  
00:00  
24:00  
DOW1  
OCC1  
UNOCC1  
DOW2  
OCC2  
UNOCC2  
DOW3  
OCC3  
UNOCC3  
DOW4  
OCC4  
UNOCC4  
DOW5  
OCC5  
UNOCC5  
DOW6  
OCC6  
UNOCC6  
DOW7  
OCC7  
UNOCC7  
DOW8  
OCC8  
UNOCC8  
If a 1 is configured in the corresponding place for a certain  
day of the week, the related Occupied fromand Occupied  
totimes for that period will take effect on that day of the  
week. If a 1 is placed in the holiday field the related times will  
take effect on a day configured as a holiday. A zero means the  
schedule period will not apply to that day.  
Occupied Cool The Occupied Cool set point is used to con-  
figure the cooling set point for the zone controller during Occu-  
pied mode.  
Occupied Cool: Units  
Range  
F (C)  
45.0 to 99.9  
74.0  
Default Value  
Period (1-8):  
Day of Week:  
Unoccupied Heat The Unoccupied Heat set point is used to  
configure the heating set point for the zone controller during  
Unoccupied mode.  
Range  
0 or 1  
Default Values  
11111111 for period 1,  
00000000 for periods 2-8.  
Unoccupied Heat: Units  
Range  
F (C)  
40.0 to 90.0  
55.0  
Occupied From This field is used to configure the hour and  
minute, in military time, when the mode for the zone controller  
becomes occupied.  
Default Value  
Unoccupied Cool The Unoccupied Cool set point is used to  
configure the cooling set point for the zone controller during  
Unoccupied mode.  
Period (1-8):  
Occupied from: Units  
Range  
Hours: Minutes  
00:00 to 24:00  
00:00  
Unoccupied Cool: Units  
Range  
F (C)  
45.0 to 99.9  
90.0  
Default Value  
Occupied To This field is used to configure the hour and  
minute, in military time, when the occupied mode for the zone  
controller becomes unoccupied.  
Default Value  
Occupied High Humidity The Occupied High Humidity  
set point is used to configure the humidity set point for the zone  
controller if optional zone humidity control (dehumidification)  
is used.  
Period (1-8):  
Occupied from: Units  
Range  
Hours: Minutes  
00:00 to 24:00  
24:00  
Occupied High Humidity: Units  
Range  
% Humidity  
0.0 to 100.0  
Default Value  
SET POINT SCREEN The Set Point screen is used to  
modify the zone controller set points. See Table 8.  
Occupied Heat The Occupied Heat set point is used to con-  
figure the heating set point for the zone controller during Occu-  
pied mode.  
Default Value 60.0  
Unoccupied High Humidity The unoccupied high humidi-  
ty set point is used to configure the unoccupied humidity set  
point for the zone controller if optional zone humidity control  
(dehumidification) is used.  
Occupied Heat: Units  
Range  
F (C)  
40.0 to 90.0  
70.0  
Unoccupied  
High Humidity: Units  
Range  
% humidity  
0 to 100  
100  
Default Value  
Default Value  
1001  
36  
Air Quality The Air Quality set point is used to configure  
the IAQ set point for the zone controller if optional controlled  
ventilation support is used.  
Cool Minimum (PI) This configuration is the minimum  
airflow the terminal will control to when the equipment is in  
Cooling mode (or Fan Only mode) or free cooling. The space  
requirements for cooling must be at a minimum, or the terminal  
is a fan powered terminal and the space requirements are for  
heat.  
Air Quality  
(ppm):  
Units  
none shown (ppm  
implied)  
0 to 5000  
850  
Range  
Default Value  
Cool Minimum: Units  
Range  
CFM  
0 to 9999 (Limited by  
Delta Airflow The Delta Airflow set point is used to con-  
figure the Delta Airflow set point for the zone controller if the  
zone pressure control option is used. If a negative pressure is  
desired, configure the value as a positive delta.  
the High Velocity pressure limit alarm)  
Default Value  
0
Cool Maximum (PI) This configuration is the maximum  
airflow the terminal will control to when the equipment is in  
Cooling mode (or Fan Only mode) or free cooling and the  
space requirements for cooling are at a maximum.  
Delta Airflow:  
Units  
cfm  
-9999 to 9999  
0
Range  
Default Value  
Cool Maximum: Units  
Range  
CFM  
Service Configuration Selection Screen The  
Service Configuration Selection screen is a menu of Service  
screens which can be accessed by the user. The following  
screens are available: Airflow Service Configuration, Terminal  
Service Configuration, Option Service Configuration, and Sec-  
ondary Damper Service Configuration.  
AIRFLOW SERVICE CONFIGURATION SCREEN —  
The Airflow Service Configuration Table is used to configure  
the pressure independent and backup pressure dependent set  
points. See Table 9.  
0 to 9999 (Limited by  
the High Velocity pressure limit alarm)  
Default Value  
4000  
Terminal Reheat (PI) This configuration is for single duct  
units with ducted reheat. The desired airflow is configured at  
which the reheat will provide optimum performance. This val-  
ue is compared to the Minimum Cool value and the greater of  
the two values is used to determine the airflow set point.  
Terminal Reheat: Units  
Range  
CFM  
0 to 9999 (Limited by  
Pressure Independent Pressure Independent (PI) set points  
should be configured for pressure independent operation  
applications.  
the High Velocity pressure limit alarm)  
Default Value  
0
Table 8 Set Point Screen  
DESCRIPTION  
DEFAULT  
POINT NAME  
Set Points  
Occupied Heat  
Occupied Cool  
70.0 F  
74.0 F  
55.0 F  
90.0 F  
60.0 %  
100 %  
850 ppm  
0 cfm  
OHSP  
OCSP  
UHSP  
UCSP  
ORHH  
URHH  
AQSP  
DCFM  
Unoccupied Heat  
Unoccupied Cool  
Occupied HIgh Humidity  
Unoccupied High Humidity  
Air Quality (ppm)  
Delta Airflow  
Table 9 Airflow Service Configuration Screen  
DESCRIPTION  
Pressure Independent  
Cool Minimum  
Cool Maximum  
Terminal Reheat  
DEFAULT  
POINT NAME  
0 cfm  
4000 cfm  
0 cfm  
COOLMIN  
COOLMAX  
REHEAT  
Heat Minimum  
0 cfm  
HEATMIN  
Heat Maximum  
Parallel Fan On  
4000 cfm  
0 cfm  
4000 cfm  
HEATMAX  
FNONCFM  
DDCVFLOW  
Dual Duct CV Airflow  
Pressure Dependent  
Cool Minimum Position  
Cool Maximum Position  
Reheat Minimum Position  
Heat Minimum Positon  
Heat Maximum Position  
Deadband Percent  
0 %  
100 %  
0 %  
0 %  
100 %  
12.5 %  
CMINPOS  
CMAXPOS  
REMINPOS  
HMINPOS  
HMAXPOS  
DB_PCT  
37  
1001  
Heat Minimum (PI) This configuration is the minimum  
airflow the terminal will control to when the equipment mode  
is Warm-Up or Heat. If the terminal is not configured for VAV  
central heating this is the only airflow the terminal will control  
to for these equipment modes.  
Reheat Minimum Position (PD) This configuration is for  
single duct units with ducted reheat. Configure the desired  
damper position at which the reheat will provide optimum per-  
formance. This value is compared to the Minimum Cool value  
and the greater of the two values is used to determine the  
damper position.  
Heat Minimum: Units  
Range  
CFM  
0 to 9999 (Limited by  
Reheat Minimum  
Position:  
the High Velocity pressure limit alarm)  
Units  
%
0 to 100  
0
Default Value  
0
Range  
Default Value  
Heat Maximum (PI) This configuration is used to config-  
ure the maximum airflow at which the zone controller will op-  
erate if VAV central heat is configured to yes. If the equipment  
mode is heat or warm-up, and the demand in the space is for  
heat, the zone controller will calculate the proper airflow need-  
ed to achieve space temperature set point (operating between  
the Heat Min and Heat Max).  
Heat Minimum Position (PD) This configuration is the  
Minimum damper position the terminal will control to when  
the equipment mode is Warm-Up or Heat. If the terminal is not  
configured for VAV central heating this is the only position the  
terminal will control to for these equipment modes.  
Heat Minimum  
Position:  
Heat Maximum: Units  
Range  
CFM  
Units  
%
0 to 100  
0
0 to 9999 (Limited by  
Range  
the High Velocity pressure limit alarm)  
Default Value  
Default Value  
4000  
Heat Maximum Position (PD) This configuration is used  
to configure the maximum damper position at which the zone  
controller will operate if VAV central heat is configured to yes.  
If the equipment mode is Heat or Warm-Up and the demand in  
the space is for heat the zone controller will calculate the prop-  
er damper position needed to achieve space temperature set  
point, operating between the Heat Min and Heat Max.  
Parallel Fan On (PI) This configuration is used to define  
the primary airflow setting below which a parallel fan terminal  
should energize its fan. The setting should be used to allow a  
low volume of primary airflow to be better diffused into the  
space.  
Parallel Fan On: Units  
Range  
CFM  
0 to 9999 (Limited by  
Heat Maximum  
Position:  
the High Velocity pressure limit alarm)  
Units  
%
0 to 100  
100  
Default Value  
0
Range  
Default Value  
Dual Duct CV Airflow (PI) This configuration defines the  
Dual Duct, constant volume, total airflow set point.  
Deadband Percent This configuration is used to configure  
the Deadband Percent that the airflow will operate with.  
Dual Duct  
Airflow:  
Units  
CFM  
Deadband  
Percent:  
Range  
0 to 9999 (Limited by  
Units  
%
the High Velocity pressure limit alarm)  
Default Value  
Range  
0.0 to 100.0  
12.5  
4000  
Default Value  
Pressure Dependent Pressure Dependent (PD) set points  
should be configured for backup pressure dependent operation,  
if an operating problem with the pressure transducer occurs.  
TERMINAL SERVICE CONFIGURATION SCREEN —  
The Terminal Service Configuration screen lists the main con-  
figuration settings for the air terminal controller. See Table 10.  
Terminal Type This configuration is used to indicate the  
terminal type that the zone controller is installed on. A 1 is for  
Single Duct terminals, a 2 is for Parallel Fan terminals, a 3 is  
for Series Fan terminals, and a 4 is for Dual Duct applications.  
IMPORTANT: Pressure dependent settings are  
included for use only in the event of a pressure trans-  
ducer failure. The inclusion of these configuration set-  
tings does not indicate that Carrier is endorsing this  
product for pressure dependent operation. In the case  
of a pressure sensor failure, the zone controller will  
broadcast a pressure sensor failure message on the  
CCN bus. These configurations may be used by a ser-  
vice technician to put the terminal in pressure depen-  
dent mode until the zone controller can be replaced.  
Terminal Type: Range  
Default Value  
1 to 4  
1
Primary Inlet Size The Primary Inlet Size configuration is  
used to input the inlet diameter of the terminal if used with a  
round inlet. The Inlet Area configuration is used for oval or  
rectangular inlets. The zone controller will use the larger value  
for CFM calculations if both values are configured.  
Cool Minimum Position (PD) This configuration is the  
minimum damper position the terminal will control to when  
the equipment mode is Cooling (or Fan Only), or free cooling  
and the space requirements for cooling are at a minimum.  
NOTE: Carrier sizes 12, 14, and 16 are oval.  
Primary Inlet Size  
(Inlet Diameter): Units  
Range  
Inches  
3.0 to 24.0  
6.0  
Cool Minimum  
Position:  
Default Value  
Units  
%
0 to 100  
0
Inlet Area The Inlet Area configuration is used if the termi-  
nal has an oval or rectangular inlet. The Primary Inlet Size  
configuration is used for round inlets. The zone controller will  
use the larger value for CFM calculations if both values are  
configured.  
Range  
Default Value  
Cool Maximum Position (PD) This configuration is the  
maximum damper position the terminal will control to when  
the equipment mode is cooling (or fan only), or free cooling  
and the space requirements for cooling are at a maximum.  
Inlet Area:  
Units  
Square Inches  
0.0 to 500.0  
0.0  
Range  
Default Value  
Cool Maximum  
Position:  
Units  
%
0 to 100  
100  
Range  
Default Value  
38  
Table 10 Terminal Service Configuration Screen  
DESCRIPTION  
DEFAULT  
POINT NAME  
COOLING  
Terminal Type  
1
TERMTYPE  
Primary Inlet Size  
Inlet Diameter  
Inlet Area  
6.0 in.  
0.0 in.  
RNDSZ  
SQA  
Probe Multiplier  
Calibration Gain  
Offset  
2.443  
1.000  
0 cfm  
PMF  
CAL_GAIN  
OFFSET  
Damper  
Proportional Gain  
Integral Gain  
Derivative Gain  
Starting Value  
30.0  
5.0  
KP  
KI  
0.0  
KD  
20 %  
STARTVAL  
CW Rotation  
Pressure Independent  
HEATING  
Close  
Yes  
DMPDIR  
PRESIN D  
Heat Type  
VAV Central Heating  
0
Yes  
HEATTYPE  
CENHEAT  
Heating  
Proportional Gain  
Integral Gain  
Derivative Gain  
Starting Value  
8.0  
3.0  
KP  
KI  
0.0  
KD  
80 F  
STARTVAL  
Ducted Heat  
Yes  
110 F  
1
2
2
Normal  
0.0 F  
0.0 F  
Close  
DUCTHEAT  
MAXTEMP  
STAGES  
HONDEL  
FNOFFD  
HEATYPE  
SPTTRIM  
SATTRIM  
RMTCFG  
Maximum Temperature  
Number of Electric Heat Stages  
Heat On Delay  
Fan Off Delay  
2-Position Heat Logic  
SPT Trim  
SAT Trim  
Remote Contact Configuration  
Probe Multiplier This configuration is used to input a factor  
for the velocity pressure probe installed in the terminal inlet.  
Most inlet probes will have some aerodynamic characteristics  
that will affect the differential pressure output from the probe.  
The formula used by the ComfortIDcontroller for calculat-  
ing the airflow (cfm) is based on measuring velocity with a  
Pitot tube probe. A PMF (Pitot measurement factor) is required  
in the calculation for different probes. Because various probe  
characteristics are different, the PMF is used to determine the  
correct airflow based on the type of probe installed. The PMF  
will compensate for the difference between Pitot-type probes  
and the actual probe installed.  
that gives an airflow value of 820 cfm at a velocity pressure  
reading of 1 in. wg. To determine the PMF for the terminal:  
1. Determine duct area.  
radius of duct = diameter of duct/2  
radius = 8-in./2-in.  
radius = 4-in.  
Area of circular duct = Πr2  
Area = 3.14159 x 42  
Area = 3.14159 x 16  
Area = 50.26-in.2  
Area must be in ft2  
50.26-in.2/(144-ft2) = 0.34906 ft2  
The default PMF value of 2.273 is the correct value to use  
when the zone controller is used with a Carrier probe in a  
Carrier air terminal. For terminals and probes supplied by other  
manufacturers, the PMF must be calculated and entered into  
the zone controller configuration in order to correctly measure  
airflow.  
2. Determine K factor.  
K factor = (820 cfm/0.34906 ft2)  
K factor = 2349 fpm  
3. Determine PMF.  
PMF = (4005 fpm/2349 fpm)2  
PMF = 2.907  
To determine the correct PMF value, there are several meth-  
ods depending on the data supplied by the terminal manufac-  
turer. The manufacturer may supply a K factoror may sup-  
ply a chart of velocity pressure vs. airflow for the terminal. The  
K factor is the actual airflow velocity at a velocity pressure  
reading of 1 in. wg for the probe. This value is in ft/min and  
can be used to calculate the PMF. When the K factor is entered  
into the following equation, it is compared to the value of 4005,  
which is the K factor for a Pitot tube probe:  
PMF = (4005/K FACTOR)2  
If a chart is supplied by the manufacturer instead of the K  
factor, then the K factor can be calculated from the chart using  
the following formula:  
Another way to determine the probe constant for a probe  
without documentation is to measure the velocity pressure with  
a Magnahelic gage. Open the damper and adjust the static pres-  
sure or open the damper until you have one inch of velocity  
pressure on the Magnahelic gage. Measure the total CFM of air  
being delivered. The CFM just measured divided by the inlet  
area in square feet should equal the K factor for the formula.  
Now use the K factor that was empirically derived to determine  
the probe multiplier.  
Probe Multiplier: Range  
Default Value  
0.250 to 9.999  
2.443  
Calibration Gain Air terminal testing by industry standards  
is done with straight duct, upstream of the terminal. Since some  
applications do not get installed in this manner, the actual air-  
flow from the terminal at balancing may not equal the reading  
from the zone controller.  
K FACTOR = (cfm at 1-in. wg)/(duct area ft2)  
As an example, an air terminal with an 8-in. round inlet is  
used. The terminal manufacturer has provided an airflow chart  
39  
303  
The calibration gain is used for the fine tuning adjustments  
which might need to be made to the airflow calculation. This  
number is calculated automatically by the zone controller after  
input to the air balance maintenance screen, or it can be input  
manually at this screen. For ease of use it is recommended to  
use the Air Balance Maintenance screen to determine this num-  
ber. The Air Balancing Maintenance screen will cause the val-  
ue to be updated during the balancing procedure.  
If the Calibration Gain must be configured manually, it is  
determined as a percentage up or down that the CFM indicated  
will be offset. A number of .95 will cause the maximum air-  
flow calculated to be reduced to 95% of the value. A Calibra-  
tion Gain of 1.00 will cause no change. A number of 1.05  
would cause readings to become 5% higher.  
The Calibration Gain is adjusted on the Air Balance Mainte-  
nance screen when performing the Maximum Airflow calibra-  
tion and will have the greatest effect on the airflow at maxi-  
mum CFM. Any error in reading at minimum airflow is adjust-  
ed by calculating the Offset configuration value. After  
performing the air balance using the Air Balance Maintenance  
screen it is a good idea to upload and save the Calibration Gain  
and Offset values.  
Start Value:  
Units  
%
0 to 100  
20  
Range  
Default Value  
Clockwise Rotation This configuration is used to define  
what effect a clockwise rotation of the actuator will have on the  
damper. If the actuator rotates clockwise to closed position, the  
configuration should be set to Close. If the actuator rotates  
clockwise to open, the configuration should be set to open.  
This configuration is used to change the rotation of the actuator  
so that the damper transducer calibration will work properly.  
The actuator does not have to be re-installed nor any switches  
changed to reverse the action.  
Clockwise  
Rotation:  
Range  
Default Value  
Close/Open  
Close  
Pressure Independent This configuration defines if the ter-  
minal will function in the pressure independent or pressure de-  
pendent mode.  
NOTE: Pressure dependent mode should only be used in an  
emergency, if the pressure sensor is not functioning.  
Pressure  
Independent:  
Range  
Default Value  
No/Yes  
Yes  
Calibration Gain: Range  
Default Value  
0.000 to 9.999  
1.000  
Heat Type This configuration is used to define the type of  
heat installed on the terminal. A 0 is equal to None. A 1 is  
equal to Modulating/VAV. A 2 is equal to Two Position. A 3 is  
equal to staged Electric. A 4 is equal to Modulating/CV.  
Offset The Offset configuration is included for precision  
applications where the minimum airflow is critical and not ze-  
ro. This configuration indicates the amount of CFM the trans-  
ducer is off by, at minimum airflow, during the minimum air-  
flow test on the air balance screen. This configuration should  
not be used to zero the airflow transducer since an auto zero  
test is included on the air balance screen and is also automati-  
cally performed each time the equipment fan is disabled (or  
every 72 hours for systems which run the fan continuously).  
After performing the air balance testing using the Air Balance  
Maintenance screen it is a good idea to upload and save the  
Calibration gain and Offset values. The cfm will be offset by  
the value entered in the Minimum Cfm variable and will zero  
at the value entered in the Maximum Cfm variable. There will  
be a linear relationship between the two set points.  
Heat Type:  
Range  
Default Value  
0 to 4  
0
VAV Central Heating The VAV Central Heating configura-  
tion is used if the air source has the ability to provide heat and  
the terminal is required to modulate, using the heat minimum  
and heat maximum airflows, when the air source is in the heat  
mode. If this variable is set to No, the terminal will use its  
available local heat to heat the zone at all times.  
VAV Central  
Heating:  
Range  
Default Value  
No/Yes  
Yes  
Offset:  
Units  
cfm  
-250 to 250  
0
Heating Loop Parameters The heating loop gains and start  
value define how the terminal will respond to deviations in  
measured space temperature in order to control to the heat set  
point.  
The Proportional Gain is calculated each time the space  
temperature is compared to the heat set point. As the error  
from set point goes to zero, the Proportional Gain will also go  
to zero.  
The Integral Gain is a running summation of all integral  
terms since the loop started. This has the affect of trimming off  
any offset from set point which might occur if only the Propor-  
tional Gain existed. Normally a proportional loop with no Inte-  
gral Gain would require frequent adjustments of the starting  
value to eliminate the offset as loading conditions on the room  
change.  
The Derivative Gain is not needed. This term tends to nulli-  
fy large changes in the Proportional Gain for dampened  
response.  
Range  
Default Value  
Damper Loop Parameters The loop gains and start value  
define how the terminal will respond to deviations in measured  
CFM in order to control to the airflow set point.  
The Proportional Gain is calculated each time the airflow is  
compared to the active airflow set point. As the error from set  
point goes to zero, the proportional term will also go to zero.  
The Integral Gain is a running summation of all integral  
terms since the loop started. This has the effect of trimming off  
any offset from the set point which might occur, if only the pro-  
portional term existed. Normally a proportional loop with no  
integral term would require frequent adjustments of the starting  
value to eliminate the offset as static pressure and other condi-  
tions change.  
The Derivative Gain is not needed. The Derivative Gain  
would tend to nullify large changes in the Proportional Gain for  
dampened response. These large changes in the Proportional  
Gain do not tend to happen for this type of control.  
Heating Loop Parameters  
Proportional Gain: Range  
00.0 to 99.9  
8.0  
Damper Loop Parameters  
Default Value  
Proportional Gain:Range  
00.0 to 99.9  
30.0  
Default Value  
Integral Gain:  
Range  
Default Value  
00.0 to 99.0  
3.0  
Integral Gain:  
Range  
Default Value  
00.0 to 99.0  
5.0  
Derivative Gain: Range  
00.0  
0.0  
Default Value  
Derivative Gain: Range  
00.0  
0.0  
Default Value  
40  
801  
Start Value:  
Units  
F (C)  
40 to 125  
80  
Space Temperature Trim This configuration is used to trim  
a space sensor which might need calibration. For example, if  
the temperature displayed is two degrees above the value mea-  
sured with calibrated test equipment, input a value of 2.0.  
Range  
Default Value  
Ducted Heat The Ducted Heat configuration is used to con-  
figure the terminal for ducted heat. If a local heat source is in  
the duct and requires airflow to provide heat, set the Ducted  
Heat configuration for yes.  
Space Temperature  
Trim:  
Units  
delta F (delta C)  
9.9 to 9.9  
0.0  
Range  
Default Value  
Ducted Heat  
Range  
Default Value  
No/Yes  
Yes  
Supply Air Temperature Trim This configuration is used  
to trim a supply air sensor which might need calibration. For  
example, if the temperature displayed is two degrees above the  
value measured with calibrated test equipment, input a value of  
2.0.  
Maximum Duct Temperature This configuration is used to  
configure the maximum supply-air temperature desirable for  
heating the space. This will cause the heat to be modulated or  
cycled using this value as the maximum temperature of the air  
to be supplied.  
Maximum Duct  
Temperature:  
Supply Air Temperature  
Trim:  
Units  
delta F (delta C)  
9.9 to 9.9  
0.0  
Range  
Default Value  
Units  
Range  
Default Value  
F (C)  
40 to 200  
110  
Remote Contact Config The remote timeclock contact in-  
put can be configured as a normally open or normally closed  
contact. When the timeclock input is Onthe zone will follow  
its local occupancy schedule. When the timeclock input is  
Offthe zone will be forced into unoccupied state.  
Number of Electric Stages This configuration is used to  
define the number of stages of electric heat controlled by the  
zone controller.  
Number of  
Electric Stages: Range  
Remote Contact  
Config:  
1 to 3  
1
Range  
Default Value  
Close/Open  
Close  
Default Value  
Heat On Delay The Heat On Delay configuration is used to  
define a delay from the time a parallel terminal fan is started  
until the heat is activated.  
Heat On Delay: Units  
Range  
OPTIONS SERVICE CONFIGURATION SCREEN —  
The Options Service Configuration screen is used to configure  
the service options of the air terminal controller. See Table 11.  
Occupancy Schedule Number The Occupancy Schedule  
Number defines what Occupancy schedule the zone controller  
will use. Occupancy Schedule 64 is a local schedule. Occupan-  
cy Schedules 65 to 99 are global schedules.  
minutes  
1 to 60  
2
Default Value  
Fan Off Delay The Fan Off Delay configuration is used to  
define a delay time. The delay time is from when the heat is de-  
activated (in a parallel terminal) until the parallel fan is deacti-  
vated. This allows the fan to circulate air and remove the resid-  
ual heat from the heat source.  
Occupancy Schedule  
Number:  
Range  
64 to 99  
64  
Default Value  
Global Schedule Master The Global Schedule Master con-  
figuration allows the Occupancy Schedule to be used as a Glo-  
bal Schedule Master (Occupancy Schedules 65-99).  
Fan Off Delay: Units  
Range  
minutes  
1 to 15  
2
Default Value  
Global Schedule  
Two-Position Heat Logic This configuration is used for  
controlling a normally closed or normally open valve for hot  
water. Use normal logic if the valve is normally closed. Use in-  
verted logic if the valve is normally open.  
Master:  
Range  
No/Yes  
No  
Default Value  
Two Position  
Heat Logic:  
Range  
Default Value  
Normal/Invert  
Normal  
Table 11 Options Service Configuration Screen  
DESCRIPTION  
DEFAULT  
POINT NAME  
SCH  
Occupancy Schedule Number  
Global Schedule Master  
Override  
Broadcast Acknowledge  
Set Point Group Number  
Global Set Point Master  
Maximum Offset Adjust  
Control Options  
64  
No  
00:00  
No  
0
No  
2 F  
0
GSM  
OVR  
BCACK  
SETT  
GSTM  
LIMT  
CTLOPT  
Humidity  
Proportional Gain  
Integral Gain  
1.5  
0.30  
100.0 cfm  
KP  
KI  
MAXOUT  
Maximum Output Value  
Air Quality  
Proportional Gain  
Integral Gain  
0.10  
0.03  
100.0 cfm  
KP  
KI  
MAXOUT  
Maximum Output Value  
AQ Low Voltage  
0.0  
10.0  
0 ppm  
2000 ppm  
AQINLO  
AQINHI  
AQLO  
AQ High Voltage  
AQ Low Reference  
AQ High Reference  
AQHI  
41  
801  
Override The Override parameter is used to configure the  
number of hours and minutes the override will be in effect. The  
user initiates override by pressing the override button on the  
space temperature sensor. This will cause the schedule to enter  
into the Occupied mode. If global scheduling is used, all zones  
using the global schedule will enter Occupied mode. Pushing  
the override button during Occupied mode will have no effect.  
Integral Gain:  
Range  
0.00 to 9.99  
0.30  
Default Value  
Maximum Output  
Value:  
Range  
0.0 to 100.0% (max cool  
cfm)  
100.0  
Default Value  
If the occupancy override is due to end after the start of the  
next occupancy period, the mode will transition from occupan-  
cy override to occupied without becoming unoccupied, and the  
occupancy override timer will be reset.  
NOTE: If using the tenant billing function, the override  
hours set point must be configured between 1 and 3 hours.  
Indoor Air Quality Control These configuration values de-  
fine the calculation parameters for determining the airflow  
needed to correct a high incidence of air pollution contami-  
nants in the space, such as CO2. The Maximum Output Value is  
measured in percentage of nominal terminal cfm.  
Proportional Gain:Range  
Default Value  
0.00 to 9.99  
0.10  
Override:  
Units  
Hours: Minutes  
00:00 to 24:00  
00:00  
Range  
Integral Gain:  
Range  
Default Value  
0.00 to 9.99  
0.03  
Default Value  
Broadcast Acknowledger This configuration defines if the  
zone controller will be used to acknowledge broadcast messag-  
es on the CCN bus. One broadcast acknowledger is required  
per bus, including secondary busses created by the use of a  
bridge.  
Maximum Output  
Value:  
Range  
0.0 to 100.0% (max cool  
cfm)  
Default Value  
100.0  
IAQ Sensor Low Voltage This configuration defines the  
lowest voltage which should be read from the air quality  
sensor.  
Broadcast  
Acknowledger: Range  
No/Yes  
No  
Default Value  
IAQ Sensor  
Set Point Group Number The Set Point Group Number is  
used to define the current zone controller as a part of a group of  
zone controllers which share the same set points. All zone con-  
trollers with the same Set Point Group Number will have the  
same set points. The set points are broadcast to the group by the  
zone controller defined by the Global Set Point Master config-  
uration. A value of 0 is a local schedule. Values 1 to 16 are used  
for global scheduling.  
Low Voltage:  
Range  
00.0 to 10.0  
0.0  
Default Value  
IAQ Sensor High Voltage This configuration defines the  
highest voltage which should be read from the air quality sen-  
sor.  
IAQ Sensor  
High Voltage:  
Range  
Default Value  
00.0 to 10.0  
10.0  
Set Point  
Group Number: Range  
0 to 16  
0
IAQ Low Reference This configuration defines the value  
in parts per million which correlate to the low voltage reading  
from the air quality sensor.  
IAQ Low  
Reference:  
Default Value  
Global Set Point Master This configuration defines if the  
current zone controller will broadcast its set point values to the  
other zone controllers which are made part of the same group  
by configuring the Set Point Group Number.  
Units  
Range  
Default Value  
ppm (parts per million)  
0 to 5000  
0
Global Set Point  
Master:  
Range  
Default Value  
No/Yes  
No  
IAQ High Reference This configuration defines the value  
in parts per million which correlate to the high voltage reading  
from the air quality sensor.  
IAQ High  
Reference:  
Maximum Offset Adjustment This configuration deter-  
mines the maximum amount that the set point will be biased  
(up or down), by adjusting the slide bar on the space tempera-  
ture sensor (if installed).  
Units  
Range  
Default Value  
ppm (parts per million)  
0 to 5000  
2000  
Maximum Offset  
Adjustment:  
Units  
delta F (delta C)  
0 to 15  
2
Range  
SECONDARY DAMPER SERVICE CONFIGURATION  
SCREEN The Secondary Damper Service Configuration  
screen is used to configure the secondary damper settings. See  
Table 12.  
Zone Pressure Control The Zone Pressure Control config-  
uration determines whether the primary and secondary control-  
lers will be configured for zone pressure control.  
Default Value  
Control Options The Control Options configuration deter-  
mines whether the zone controller will use a humidity sensor or  
an indoor air quality sensor. A configuration of 0 means no  
sensors are used. A configuration of 1 means a Humidity Sen-  
sor is used. A configuration of 2 means an IAQ Sensor is used.  
Control Options: Range  
Default Value  
Humidity Control These configuration values define the  
calculation parameters for determining the airflow needed to  
correct a high humidity problem in the space. The Maximum  
Output Value is measured in percentage of nominal terminal  
cfm.  
0 to 2  
0
Zone Pressure  
Control:  
Range  
Default Value  
Dsable/Enable  
Dsable  
Dual Duct Type The Dual Duct Type setting configures the  
secondary controller for the correct dual duct type. A value of 0  
configures the type to None. A value of 1 configures the type to  
Second Inlet (Hot Deck). A value of 2 configures the duct to  
Total Probe (terminal outlet).  
Dual Duct Type: Range  
Default Value  
Proportional  
Gain:  
Range  
0.0 to 9.9  
1.5  
0 to 2  
0
Default Value  
800  
42  
Table 12 Secondary Damper Service Configuration Screen  
DESCRIPTION  
Zone Pressure Control  
Dual Duct Type  
DEFAULT  
Dsable  
0
POINT NAME  
ZPCNTL  
DDTYPE  
Secondary Duct Size  
Inlet Diameter  
Inlet Area  
6.0 in.  
0.0 sq. in.  
SRNDSZ  
SSQA  
Probe Multiplier  
Calibration Gain  
Offset  
2.443  
1.000  
0 cfm  
Close  
SPMF  
CAL_GAIN  
SOFFSET  
DMPDIR  
CW Rotation  
Secondary Duct Size The Secondary Duct Size setting is  
used to input the inlet diameter of the terminal, if used with a  
round inlet. The Inlet Area configuration is used for oval or  
rectangular inlets. The zone controller will use the larger value  
for CFM calculations if both values are configured.  
will be offset. A number of .95 will cause the maximum air-  
flow calculated to be reduced to 95% of the value. A Calibra-  
tion Gain of 1.00 will cause no change. A number of 1.05  
would cause readings to become 5% higher.  
Any error in reading at minimum airflow is adjusted by cal-  
culating the Offset configuration value.  
Secondary Duct Size  
(Inlet Diameter): Units  
Range  
Inches  
3.0 to 24.0  
6.0  
Calibration Gain: Range  
Default Value  
0.000 to 9.999  
1.000  
Default Value  
Offset The Offset configuration is included for precision  
applications where the minimum airflow is critical and not  
zero. The cfm will be offset by the value entered in the Mini-  
mum Cfm variable and will zero at the value entered in the  
Maximum Cfm variable. There will be a linear relationship be-  
tween the two set points.  
Inlet Area The Inlet Area configuration is used if the termi-  
nal has an oval or rectangular inlet. The Primary Inlet Size  
configuration is used for round inlets. The zone controller will  
use the larger value for CFM calculations if both values are  
configured.  
Inlet Area:  
Units  
Square Inches  
0.0 to 500.0  
0.0  
Offset:  
Units  
cfm  
Range  
Range  
250 to 250  
Default Value  
Default Value  
0
Probe Multiplier This configuration is used to input a fac-  
tor for the velocity pressure probe characteristics installed in  
the inlet. All averaging probes will have some aerodynamic  
characteristics which will amplify the pressure difference read  
at the inlet of the terminal. The default of 2.443 is the correct  
value to use if the probe is a Carrier probe in a 35 or 45 Series  
terminal.  
Clockwise Rotation This configuration is used to define  
what effect a clockwise rotation of the actuator will have on the  
damper. If the actuator rotates clockwise to closed position, the  
configuration should be set to Close. If the actuator rotates  
clockwise to open, the configuration should be set to open.  
This configuration is used to change the rotation of the actuator  
so that the damper transducer calibration will work properly.  
The actuator does not have to be reinstalled nor any switches  
changed to reverse the action.  
The formula for calculating velocity using an Ideal probe is:  
Velocity = 4005* SQRT (Velocity Pressure)  
Most manufactures will provide a probe constant for the  
probe supplied. For example, Velocity = 2213*SQRT(Velocity  
Pressure). To calculate the number to input in this decision  
(Probe Multiplier) use the formula. (4005/2213)2 = 3.3. So you  
would use 3.3 in place of 2.443 for a probe with a probe con-  
stant of 2213.  
An easy way to determine the probe constant for a probe  
without documentation is to measure the velocity pressure with  
a Magnahelic gage. Open the damper and adjust the static pres-  
sure until you have one inch of velocity pressure on the Magna-  
helic gage. Measure the total CFM of air being produced. The  
CFM just measured divided by the inlet area in feet should  
equal the probe constant for the formula. Velocity = (CFM just  
measured/inlet area) * SQRT (1.0). Now use the constant that  
was empirically derived to determine the probe multiplier  
(4005/(CFM at 1.0 Inch/Inlet area))2 = Probe Multiplier.  
Clockwise  
Rotation:  
Range  
Close/Open  
Close  
Default Value  
Maintenance Table Menu Screen The Mainte-  
nance Table Menu screen allows the user to select one of 4  
available maintenance tables: the Linkage Maintenance Table,  
the Occupancy Maintenance Table, the Zone Air Balance  
Table, and the Zone Maintenance Table.  
LINKAGE MAINTENANCE TABLE The Linkage  
Maintenance table is used to view the zone linkage variables.  
See Table 13.  
Air Source Bus Number This variable will display the bus  
number of the air source that the zone controller will be com-  
municating Linkage to, if this zone is the Linkage Master.  
Air Source  
Bus Number:  
Range  
Default Value  
Network Access None  
0 to 239  
0
Probe Multiplier: Range  
Default Value  
0.250 to 9.999  
2.443  
Calibration Gain Air terminal testing by industry standards  
is done with straight duct, upstream of the terminal. Since most  
applications do not get installed in this manner, the actual air-  
flow from the terminal at balancing may not equal the reading  
from the zone controller.  
Air Source Element Number This variable will display the  
Element Address of the Air Source that the zone controller  
will be communicating Linkage to, if this zone is the Linkage  
Master.  
Air Source  
Element Number: Display Range  
Default Value  
The calibration gain is used for the fine tuning adjustments  
which might need to be made to the airflow calculation.  
If the Calibration Gain must be configured manually. It is  
determined as a percentage up or down that the CFM indicated  
1 to 239  
0
Network Access None  
501  
43  
Master Zone Element Number This variable will display  
Average Unoccupied Cool Set Point This variable dis-  
plays the weighted average of the unoccupied cool set point,  
calculated by the linkage coordinator, from the information re-  
ceived from polling its associated zones. The set points are  
weighted by the maximum airflow capacities of the zone con-  
trollers scanned by the linkage coordinator.  
the element address of the zone which is the Linkage Master.  
Master Zone  
Element Number: Display Range  
Default Value  
1 to 239  
0
Network Access Read only  
Average Occupied  
Operating Mode This variable will display the current op-  
erating mode of the air source, if Linkage is available, or the  
mode determined by the Linkage Master using the primary air  
sensor, if available. If the primary air sensor has failed or was  
not installed, the Linkage master will assume the default mode  
of cooling.  
Cool Set Point: Display Units  
Display Range  
F (C)  
0.0 to 99.9  
0.0  
Default Value  
Network Access None  
Average Zone Temperature This variable displays the  
weighted average of the space temperatures, collected by the  
linkage coordinator, from polling its associated zones. The  
temperatures are weighted by the maximum airflow capacities  
of the zone controllers scanned by the linkage coordinator.  
Operating Mode: Display Range  
COOLING, HEATING,  
WARM-UP, FREECOOL, PRESSURE,  
EVAC, OFF  
Default Value  
OFF  
Average Zone  
Temperature:  
Network Access Read only  
Display Units  
Display Range  
Default Value  
F (C)  
0.0 to 99.9  
0.0  
Air Source Supply Temperature This variable displays the  
supply temperature reading of the air source.  
Air Source Supply  
Temperature:  
Network Access Read Only  
Units  
F (C)  
-40 to 245  
0
Average Occupied Zone Temperature This variable dis-  
plays the weighted average of the space temperatures of occu-  
pied zones, collected by the linkage coordinator, from polling  
its associated zones. The temperatures are weighted by the  
maximum airflow capacities of the zone controllers scanned by  
the linkage coordinator.  
Display Range  
Default Value  
Network Access None  
Start Bias Time This variable displays the Start Bias Time,  
in minutes, calculated by the air source. The Start Bias Time is  
calculated to bring the temperature up or down to the set point  
under the optimum start routine. This value will be sent to all  
associated zones for optimum start of zone controllers. This  
function is supported by all Carrier equipment which perform  
linkage.  
Average Occupied  
Zone Temperature:Display Units  
Display Range  
F (C)  
0.0 to 99.9  
0.0  
Default Value  
Network Access Read Only  
Start Bias Time: Display Units  
Display range  
minutes  
0 to 185  
0
Composite CCN Value This variable displays the high, low  
or average of the CCN variable collected from each zone as  
configured in the Linkage Coordinator Configuration Screen.  
The value is sent to the CCN address and variable specified  
within that configuration table.  
Default Value  
Network Access None  
Average Occupied Heat Set Point This variable displays  
the weighted average of the occupied heat set point, calculated  
by the linkage coordinator, from the information received from  
polling its associated zones. The set points are weighted by the  
maximum airflow capacities of the zone controllers scanned by  
the linkage coordinator.  
Composite  
CCN Value:  
Display Range  
Default Value  
0-65535  
0
Network Access Read Only  
Occupancy Status This variable displays a 1when at  
least one of the associated zone controllers (that are being  
scanned) is in the occupied mode.  
Average Occupied  
Heat Set Point: Display Units  
Display Range  
F (C)  
0.0 to 99.9  
0.0  
Occupancy Status:Display Range  
Default Value  
0 or 1 (1 = occupied)  
0
Default Value  
Network Access None  
Network Access Read only  
Average Occupied Cool Set Point This variable displays  
the weighted average of the occupied cool set point, calculated  
by the linkage coordinator, from the information received from  
polling its associated zones. The set points are weighted by the  
maximum airflow capacities of the zone controllers scanned by  
the linkage coordinator.  
Next Occupied Day This variable displays the day when  
the next associated zone is scheduled to change from unoccu-  
pied to occupied mode. This point is read in conjunction with  
the next occupied time to allow the user to know the next time  
and day when a zone will become occupied.  
Next Occupied  
Day:  
Average Occupied  
Cool Set Point: Display Units  
Display Range  
Display Range  
Default Value  
MON, TUE, WED,  
THU, FRI, SAT, SUN  
No display (Blank)  
F (C)  
0.0 to 99.9  
0.0  
Default Value  
Network Access None  
Network Access None  
Next Occupied Time This variable displays the time of day  
when the next associated zone is scheduled to change from un-  
occupied to occupied mode. This point is read in conjunction  
with the next occupied day to allow the user to know the next  
time and day when a zone will become occupied.  
Average Unoccupied Heat Set Point This variable displays  
the weighted average of the unoccupied heat set point, calculat-  
ed by the linkage coordinator, from the information received  
from polling its associated zones. The set points are weighted  
by the maximum airflow capacities of the zone controllers  
scanned by the linkage coordinator.  
Next Occupied  
Time:  
Display Range  
Default Value  
00:00 to 24:00  
0:00  
Average Unoccupied  
Heat Set Point: Display Units  
Display Range  
F (C)  
0.0 to 99.9  
0.0  
Network Access None  
Default Value  
Network Access None  
801  
44  
Table 13 Linkage Maintenance Screen  
DESCRIPTION  
Air Source Bus Number  
Air Source Element Number  
Master Zone Element Number  
Operating Mode  
DEFAULT  
0
POINT NAME  
ASBUSNUM  
ASDEVADR  
MZDEVADR  
ASOPMODE  
ASTEMP  
STRTBIAS  
AOHS  
0
0
OFF  
0 F  
Air Source Supply Temperature  
Start Bias Time  
0 minutes  
0.0 F  
Average Occupied Heat Set Point  
Average Occupied Cool Set Point  
Average Unoccupied Heat Set Point  
Average Unoccupied Cool Set Point  
Average Zone Temperature  
Average Occupied Zone Temperature  
Composite CCN Value  
Occupancy Status  
Next Occupied Day  
Next Occupied Time  
Next Unoccupied Day  
0.0 F  
0.0 F  
AOCS  
AUHS  
0.0 F  
0.0 F  
AUCS  
AZT  
0.0 F  
0
AOZT  
CCCNVAL  
OCCSTAT  
NXTOCCD  
NXTOCCT  
NXTUNOD  
NXTUNOT  
PREVUNOD  
PRVUNOT  
MAXDMPOS  
PRESVAL  
PRESDECR  
PRESINCR  
0
(blank)  
00:00  
(blank)  
00:00  
(blank)  
00:00  
0.0 %  
0.0 in. wg  
0.000 in. wg  
0.000 in. wg  
Next Unoccupied Time  
Previous Unoccupied Day  
Previous Unoccupied Time  
Maximum Damper Position  
Static Pressure Reset  
Pressure Decrease Value  
Pressure Increase Value  
Next Unoccupied Day This variable displays the day when  
the next associated zone is scheduled to change from occupied  
to unoccupied mode. This point is read in conjunction with the  
next unoccupied time to allow the user to know the next time  
and day when a zone will become unoccupied.  
Maximum Damper Position This variable displays the  
damper position of the zone controller in the system with the  
damper in the most open position. This is used by the linkage  
coordinator to calculate the static pressure reset.  
Maximum Damper  
Next Unoccupied  
Day:  
Position:  
Display Units  
Display Range  
Default Value  
% (open)  
0.0 to 100.0  
0.0  
Display Range  
Default Value  
MON, TUE, WED,  
THU, FRI, SAT, SUN  
No display (Blank)  
Network Access Read/Write  
Network Access None  
Static Pressure Reset This variable displays the current  
static pressure reset calculated, using the maximum damper po-  
sition and the configuration information from the linkage con-  
figuration table.  
Next Unoccupied Time This variable displays the time of  
day when the next associated zone is scheduled to change from  
occupied to unoccupied mode. This point is read in conjunction  
with the next unoccupied day to allow the user to know the  
next time and day when a zone will become unoccupied.  
Static Pressure  
Reset:  
Display Units  
Display Range  
Default Value  
in. wg  
0.0 to 5.0  
0.0  
Next Unoccupied  
Time:  
Display Range  
Default Value  
00:00 to 24:00  
0:00  
Network Access Read/Write  
Network Access None  
Pressure Decrease Value If the maximum damper position  
in the system goes below the minimum configuration setting,  
the linkage coordinator will calculate an amount that the static  
pressure should be decreased. This is used to open the system  
dampers more so that they will modulate between their mini-  
mum and maximum settings.  
Previous Unoccupied Day This variable displays the day  
when the last associated zone changed from occupied to unoc-  
cupied mode. This point is read in conjunction with the previ-  
ous unoccupied time to allow the user to know the last time and  
day when a zone became unoccupied.  
Previous Unoccupied  
This number is rounded to the nearest tenth of an inch and  
will be added to the static pressure reset value unless the static  
pressure reset value has reached maximum reset.  
Day:  
Display Range  
MON, TUE, WED,  
THU, FRI, SAT, SUN  
No display (Blank)  
Default Value  
Network Access None  
Previous Unoccupied Time This variable displays the time  
of day when the last associated zone changed from occupied to  
unoccupied mode. This point is read in conjunction with the  
previous unoccupied day to allow the user to know the last time  
and day when a zone became unoccupied.  
Pressure Decrease  
Value:  
Display Units  
Display Range  
Default Value  
in. wg  
0.000 to 5.000  
0.000  
Network Access Read/Write  
Pressure Increase Value If the maximum damper position  
in the system goes above the maximum configuration setting,  
the linkage coordinator will calculate an amount that the static  
pressure should be increased. This is used to close the system  
dampers more so that they will modulate between their mini-  
mum and maximum settings.  
Previous Unoccupied  
Time:  
Display Range  
Default Value  
Network Access None  
00:00 to 24:00  
0:00  
801  
45  
This number is rounded to the nearest tenth of an inch and  
will be subtracted to the static pressure reset value unless the  
static pressure reset value has reached zero.  
Unoccupied Start Time This variable displays the time that  
the current occupied mode will end (the beginning of the next  
unoccupied mode). If the current mode is unoccupied or the  
zone controller is following a global schedule, the value dis-  
played by this point will be 0:00.  
Pressure Increase  
Value:  
Display Units  
Display Range  
Default Value  
in. wg  
0.000 to 5.000  
0.000  
Unoccupied Start  
Time:  
Display Range  
Default Value  
00:00 to 24:00  
0:00  
Network Access Read/Write  
Network Access None  
OCCUPANCY MAINTENANCE TABLE The Occu-  
pancy Maintenance table is used to view the occupancy set  
points. See Table 14.  
Mode This variable displays the current occupied mode for  
the zone controller. If the zone controller is following its own  
local schedule, this is the result of the local schedule status. If  
the zone controller is configured to follow a global schedule,  
this point displays the mode last received from a global sched-  
ule broadcast.  
Next Occupied Day This variable displays the day when  
the next occupied period is scheduled to begin. This point is  
read in conjunction with the next occupied time to allow the  
user to know the next time and day when the next occupied pe-  
riod will occur. If the zone controller is following a global  
schedule this point will remain at default.  
NOTE: If the current mode is occupied, this point makes refer-  
ence to the next occupied period and, in most cases, may not  
be the same as the current occupied start time.  
Mode:  
Display Range  
Default Value  
0 or 1 (1 = occupied)  
0
Next Occupied  
Day:  
Network Access None  
Display Range  
Default Value  
MON, TUE, WED,  
THU, FRI, SAT, SUN  
No display (Blank)  
Current Occupied Period If the zone controller is config-  
ured to determine occupancy locally, this variable will display  
the current period determining occupancy.  
Network Access None  
Next Occupied Time This variable displays the time of day  
when the next occupied period will occur. This point is read in  
conjunction with the next occupied day to allow the user to  
know the next time and day when the zone will become occu-  
pied. If the zone controller is following a global schedule this  
point will remain at default.  
NOTE: If the current mode is occupied, this point makes  
reference to the next occupied period and, in most cases,  
may not be the same as the current occupied start time.  
Next Occupied  
Current Occupied  
Period:  
Display Range  
Default Value  
1 to 8  
0
Network Access None  
Override in Progress If an occupancy override is in  
progress, this variable will display a yes.  
Override In  
Progress:  
Display Range  
Default Value  
Yes/No  
No  
Network Access None  
Time:  
Display Range  
Default Value  
00:00 to 24:00  
0:00  
Override Duration This variable displays the number of  
minutes remaining for an occupancy override which is in  
effect. If the number of override hours was downloaded, the  
value will be converted to minutes.  
Network Access None  
Next Unoccupied Day This variable displays the day when  
the next unoccupied period is scheduled to begin. This point is  
read in conjunction with the next unoccupied time to allow the  
user to know the next time and day when the zone will become  
unoccupied. If the zone controller is following a global sched-  
ule this point will remain at default.  
Override  
Duration:  
Display Units  
Display Range  
Default Value  
minutes  
0 to 1440  
0
Network Access None  
NOTE: If the current mode is unoccupied, this point makes  
reference to the next unoccupied period and, in most cases,  
may not be the same as the current unoccupied start time.  
Occupied Start Time This variable displays the time that  
the current occupied mode began. If the current mode is unoc-  
cupied or the zone controller is following a global schedule, the  
value displayed by this point will be 0:00.  
Next Unoccupied  
Day:  
Display Range  
Default Value  
MON, TUE, WED,  
THU, FRI, SAT, SUN  
No display (Blank)  
Occupied Start  
Time:  
Display Range  
Default Value  
00:00 to 23:59  
0:00  
Network Access None  
Network Access None  
Table 14 Occupancy Maintenance Screen  
DESCRIPTION  
DEFAULT  
0
POINT NAME  
MODE  
Mode  
Current Occupied Period  
Override in Progress  
Override Duration  
Occupied Start Time  
Unoccupied Start Time  
Next Occupied Day  
Next Occupied Time  
Next Unoccupied Day  
Next Unoccupied Time  
Last Unoccupied Day  
Last Unoccupied Time  
0
PERIOD  
No  
0
OVERLAST  
OVERDURA  
OCCSTART  
UNSTART  
NXTOCCD  
NXTOCCT  
NXTUNOD  
NXTUNOT  
PRVUNOD  
PRVUNOT  
00:00  
00:00  
(blank)  
00:00  
(blank)  
00:00  
(blank)  
00:00  
501  
46  
Next Unoccupied Time This variable displays the time of  
day when the next unoccupied period is scheduled to begin.  
This point is read in conjunction with the next unoccupied day  
to allow the user to know the next time and day when the zone  
will become unoccupied. If the zone controller is following a  
global schedule this point will remain at default.  
Maximum Cooling Airflow Calibration By enabling the  
Maximum Cooling Airflow Calibration, the Maximum Cool-  
ing Airflow from the set point schedule will be made the Air-  
flow CFM Set Point. The zone controller will modulate the  
damper to control to this set point. The actual airflow, damper  
position, and velocity pressure readings will be displayed.  
NOTE: If the current mode is unoccupied, this point makes  
reference to the next unoccupied period and, in most cases,  
may not be the same as the current unoccupied start time.  
If the set point is not correct, it may be changed from this  
screen by forcing the airflow set point to the desired value. The  
value will be written to the set point schedule in the Maximum  
Cool CFM set point, and the zone controller will begin to con-  
trol to the new value.  
The airflow can be measured using test and balance equip-  
ment and compared to the actual reading on the screen. If the  
value measured requires adjustment to the value on the screen,  
force the value on the screen to the value measured. The zone  
controller will take the value and calculate a new calibration  
gain which will be shown at the bottom of the screen. The new  
value will be automatically loaded into the Service Configura-  
tion table.  
Next Unoccupied  
Time:  
Display Range  
Default Value  
00:00 to 24:00  
0:00  
Network Access None  
Last Unoccupied Day This variable displays the last day  
when the zone changed from occupied to unoccupied mode.  
This point is read in conjunction with the last unoccupied time  
to allow the user to know the last time and day when the zone  
became unoccupied. If the zone controller is following a global  
schedule this point will remain at default.  
Maximum Cooling  
Airflow  
Last Unoccupied  
Day:  
Display Range  
Default Value  
MON, TUE, WED,  
THU, FRI, SAT, SUN  
No display (Blank)  
Calibration:  
Display Range Dsable/Enable  
Default Value Dsable  
Network Access Read /Write  
Network Access None  
Last Unoccupied Time This variable displays the last time  
of day when the zone changed from occupied to unoccupied  
mode. This point is read in conjunction with the last unoccu-  
pied day to allow the user to know the last time and day when a  
zone became unoccupied. If the zone controller is following a  
global schedule this point will remain at default.  
Minimum Cooling Airflow Calibration Enabling the Min-  
imum Cooling Airflow Calibration will cause the airflow CFM  
set point to change to the Minimum Cooling set point. The ac-  
tual airflow, damper position, and velocity pressure readings  
will be displayed.  
If the set point is not correct, it may be changed from this  
screen by forcing the Airflow set point to the desired value.  
The value will be written to the set point schedule in the Mini-  
mum Cool CFM set point, and the zone controller will begin to  
control to the new value.  
Last Unoccupied  
Time:  
Display Range  
Default Value  
00:00 to 24:00  
0:00  
Network Access None  
ZONE AIR BALANCE/COMMISSIONING TABLE —  
The Zone Air Balance/Commissioning Table is used to display  
the air balance variables. See Table 15.  
Commissioning Mode This variable is used to put the zone  
controller into the commissioning mode. Force this point to en-  
able. The zone controller will be ready to accept a command to  
perform the tests and functions on this screen.  
The airflow can be measured using test and balance equip-  
ment and compared to the actual reading on the screen. If the  
value measured requires adjustment to the value on the screen,  
force the value on the screen to the value measured. The zone  
controller will take the value and calculate a new offset.  
The Offset configuration is included for precision applica-  
tions where the minimum airflow is critical and not zero. The  
Offset configuration should not be used to zero the airflow  
transducer since an auto zero test is included in the normal  
function of the zone controller and is automatically performed  
each time the equipment fan is disabled (or every 72 hours for  
systems which run the fan continuously). After performing air  
balance testing using the Air Balance Maintenance screen, it is  
a good idea to upload and save the Airflow set points, Calibra-  
tion Gain, and Offset values.  
NOTE: Commissioning mode will automatically be dis-  
abled after one hour.  
Commissioning  
Mode:  
Display Range  
Default Value  
Dsable/Enable  
Dsable  
Network Access Read /Write  
Damper Actuator/Transducer Calibration The Damper  
Actuator Transducer calibration is the first calibration which  
should be performed on a newly installed actuator. The zone  
controller will command the actuator to close and read the  
feedback potentiometer to determine the zero position of the  
damper. It will then command the damper to fully open. The  
zone controller will read the potentiometer to determine the  
maximum open position. Damper positions from closed to  
maximum open will be scaled to read 0 to 100% for the damp-  
er position.  
The zone controller will then close the damper and open it  
once more to zero calibrate the airflow sensor. The entire  
calibration procedure can take up to 3 minutes. If the damper  
fails the test or the airflow calibration is unable to be complet-  
ed, the Auto-Calibration point will indicate an Alarm.  
Minimum Cooling  
Airflow  
Calibration:  
Display Range Dsable/Enable  
Default Value Dsable  
Network Access Read /Write  
Fan Override This variable can be used to test the fan on se-  
ries and parallel fan powered terminals. Enabling this point will  
cause the terminal fan to run until this point is disabled or the  
commissioning mode is ended.  
Fan Override:  
Display Range  
Default Value  
Dsable/Enable  
Dsable  
Network Access Read /Write  
Damper Actuator  
Transducer  
Calibration:  
Display Range Dsable/Enable  
Default Value Dsable  
Network Access Read /Write  
501  
47  
Table 15 Zone Air Balance/Commissioning Table  
DESCRIPTION  
Commissioning Mode  
Damper/Transducer Calibration  
Maximum Cooling  
Minimum Cooling  
Heating Override  
Fan Override  
CFM Set Point  
Actual Airflow  
Primary Damper Position  
Measured Velocity Pressure  
Supply Air Temperature  
Auto-Calibration  
DEFAULT  
Dsable  
Dsable  
Dsable  
Dsable  
Dsable  
Dsable  
0 cfm  
0 cfm  
100 %  
0.000 in. wg  
0.0 F  
Normal  
1.000  
POINT NAME  
CMODE  
CALIBRAT  
MAXCOOL  
MINCOOL  
HEATOVER  
FANOVER  
COMCFM  
AIRFLOW  
DMPPOS  
MVP  
SAT  
CAL  
CAL_GAIN  
Calibration Gain  
Heating Override This variable can be used to test the heat  
outputs. Enabling this variable will cause the heat to be modu-  
lated or staged to full heat until this point is disabled or the  
force released. Ducted reheat operation will be controlled so as  
not to exceed the configured maximum duct temperature. The  
supply-air temperature is included on this screen to verify that  
the heat is operating.  
Display Range  
by velocity pressure transducer high alarm  
limit)  
Default Value  
Network Access Read Only  
0.000 to 2.000 (Limited  
0.000  
Supply-Air Temperature This variable displays the supply-  
air temperature for ease of verifying the heat operation during  
the heat test.  
Heating Override: Display Range  
Default Value  
Dsable/Enable  
Dsable  
Supply-Air  
Temperature:  
Network Access Read /Write  
Display Units  
Display Range  
Default Value  
F (C)  
-40.0 to 245.0  
0.0  
Airflow CFM Set Point This variable displays the current  
airflow set point that the zone controller is controlling to. Dur-  
ing the calibration tests this value can be forced, which will  
change the set point configuration for the value being tested.  
Network Access Read /Write  
Auto-Calibration This variable will display Normalif the  
actuator and airflow transducer calibrations are successful. If  
damper or transducer calibration was not successful, this point  
will display Alarmand the zone controller will broadcast the  
appropriate alarm (if configured to transmit alarms).  
Airflow CFM  
Set Point:  
Display Units  
Display Range  
CFM  
0 to 9999 (Limited by  
velocity pressure transducer high alarm  
limit)  
Auto-Calibration: Display Range  
Default Value  
Normal/Alarm  
Normal  
Default Value  
0
Network Access Read /Write  
Network Access Read Only  
Actual Airflow Display This variable shows the actual air-  
flow being measured, based on the inlet size configured. Dur-  
ing the Maximum and Minimum Cooling Airflow calibration  
tests this value can be forced, which will correct the multiplier  
or offset used to calculate the airflow.  
Calibration Gain Air terminal testing by industry standards  
is done with straight duct, upstream of the terminal. Since most  
applications are not installed in this manner, the actual airflow  
from the terminal, at balancing, may not equal the reading from  
the zone controller.  
The Calibration Gain is used for making fine tuning adjust-  
ments to the airflow calculation. This number is calculated au-  
tomatically by the zone controller after input to the air balance  
maintenance screen. The Calibration Gain can also be entered  
manually in the service configuration CONFIG screen.  
Actual Airflow: Display Units  
Display Range  
CFM  
0 to 9999 (Limited by  
velocity pressure transducer high alarm  
limit)  
Default Value  
Network Access Read /Write  
0
A number of .95 entered into the Calibration Gain variable  
will cause the maximum airflow to be reduced to 95% of the  
calculated value. A number of 1.05 would cause readings to  
become 5% higher. The Calibration Gain is adjusted on the Air  
Balance maintenance screen when performing the Maximum  
Airflow Calibration and will have the greatest affect on the air-  
flow at maximum CFM.  
After performing the air balance procedure using the air bal-  
ance maintenance screen, it is recommended to upload and  
save the Airflow Configuration, Calibration Gain, and Offset  
settings.  
Primary Damper Position This variable displays the cur-  
rent damper position. During CFM Balancing, this variable is  
used to display the position of the damper. This value can  
be used to see if the damper is fully open and the system air is  
sufficient.  
Primary Damper  
Position:  
Display Units  
Display Range  
Default Value  
% (open)  
0 to 100  
100  
Network Access Read Only  
Measured Velocity Pressure This variable displays the  
measured velocity pressure, which is used to check accuracy  
during test and balancing of the terminal. If the pressure  
appears to be much different than that measured with a Magna-  
helic gage, the transducer can be forced to recalibrate its zero  
by enabling the Damper/Transducer Calibration.  
Calibration Gain: Display Range  
Default Value  
0.000 to 9.999  
1.000  
Network Access Read Only  
Measured Velocity  
Pressure:  
Display Units  
in. wg  
501  
48  
ZONE MAINTENANCE TABLE The Zone Maintenance  
table is used to display zone set points and variables. See  
Table 16.  
Occupied This variable indicates if the zone controller is  
operating in the occupied mode.  
unoccupied mode. This variable will display any space temper-  
ature sensor slidebar offset that is being applied.  
Cool Master  
Reference:  
Display Units  
Display Range  
Default Value  
F (C)  
45.0 to 99.9  
90.0  
Occupied:  
Display Range  
Default Value  
No/Yes  
No  
Network Access Read/Write  
Network Access Read Only  
Primary Damper Airflow Reference This variable dis-  
plays the current controlling airflow set point.  
Linkage Slave This variable displays if air source linkage is  
in effect.  
Primary Damper  
Airflow  
Display Units  
Display Range  
CFM  
Linkage Slave: Display Range  
Default Value  
No/Yes  
No  
Reference:  
0 to 9999 (Limited by  
velocity pressure transducer high alarm  
limit)  
Network Access Read Only  
Linkage Master This variable displays if this zone control-  
ler is functioning as a linkage master.  
Default Value  
0
Network Access Read /Write  
Linkage Master: Display Range  
Default Value  
No/Yes  
No  
Primary Damper Position This variable displays the cur-  
rent damper position.  
Network Access Read Only  
Primary Damper  
Position:  
Timed Override in Effect This variable indicates if a timed  
override is in effect.  
Display Units  
Display Range  
Default Value  
% (open)  
0 to 100  
100  
Timed Override  
in Effect:  
Display Range  
Default Value  
No/Yes  
No  
Network Access Read/Write  
Secondary Damper Airflow Reference This variable dis-  
plays the current controlling airflow set point for the secondary  
damper.  
Network Access Read Only  
Set Point Offset (T-56) This variable displays the degrees  
of offset when using a 33ZCT56SPT space temperature sensor  
with set point adjustment. The slidebar on the sensor will adjust  
the desired temperature in that zone, up or down, when it is  
moved. The Set Point Offset (T-56) variable can disable set  
point offset (set to 0).  
Secondary Damper  
Airflow  
Display Units  
Display Range  
CFM  
Reference:  
0 to 9999 (Limited by  
velocity pressure transducer high alarm  
limit)  
Default Value  
Network Access Read /Write  
Set Point  
Offset (T-56):  
0
Display Units  
Display Range  
Default Value  
delta F (delta C)  
0.0 to 15.0  
0.0  
Heat Enable This variable displays the demand for heat in  
the space. The space temperature must be below the appropri-  
ate heat set point.  
Network Access Read Only  
Cool Master Reference This variable displays the cooling  
master reference from the set point schedule. This should be  
the occupied cool set point when the zone is in occupied  
mode or the unoccupied cool set point when the zone is in  
Heat Enable:  
Display Range  
Default Value  
Dsable/Enable  
Dsable  
Network Access Read Only  
Table 16 Zone Maintenance Table  
DESCRIPTION  
DEFAULT  
No  
POINT NAME  
ZONEOCC  
DAVCTL  
LINKMAST  
TIMOV  
T56OFF  
CCMR  
PISMR  
PDSMR  
SDSMR  
HEATENA  
HCMR  
HSMR  
TCA  
RHA  
Occupied  
Linkage Slave  
Linkage Master  
No  
No  
No  
Timed Override in Effect  
Set Point Offset (T-56)  
Cool Master Reference  
PI Primary Damper Reference  
PD Primary Damper Reference  
Secondary Damper Reference  
Heat Enable  
Heat Master Reference  
Heat Submaster Reference  
Temperature Control Airflow  
Relative Humidity Airflow  
Air Quality Airflow  
0.0 F  
90.0 F  
0 cfm  
100 %  
0 cfm  
Dsable  
55.0 F  
0 F  
100 %  
0 %  
0 %  
AQA  
Cooling in Effect  
Heating in Effect  
RH in Effect  
AQ in Effect  
Unoccupied Dehumidification  
Cooling Energy  
Heating Energy  
Yes  
No  
No  
No  
No  
0 Btu  
0 Btu  
COOLFLAG  
HEATFLAG  
RHFLAG  
AQFLAG  
UNOCCDH  
COOLBTUS  
HEATBTUS  
49  
801  
Heat Master Reference This point displays the occupied  
heat set point if occupied, or the unoccupied heat set point if  
unoccupied. This variable will display any space temperature  
sensor slidebar offset that is being applied.  
Cooling in Effect This variable displays if the air source is  
in the Cooling mode and if the terminal is using the cooling air-  
flow set points.  
Cooling In Effect: Display Range  
Default Value  
No/Yes  
Yes  
Heat Master  
Reference:  
Display Units  
Display Range  
Default Value  
F (C)  
Network Access Read Only  
40.0 to 90.0  
55.0  
Network Access Read/Write  
Heating in Effect This variable displays if the air source is  
in the Heat mode and if the terminal is using the heating air-  
flow set points.  
Heat Submaster Reference If heat is enabled, this variable  
displays the desired supply air temperature calculated to heat  
the space. This is a result of the heating PID loop calculation.  
Heating In Effect: Display Range  
Default Value  
No/Yes  
No  
Network Access Read Only  
Heat Submaster  
Reference:  
Relative Humidity Control in Effect This variable indi-  
cates if the relative humidity control is active.  
Relative Humidity  
Control In Effect: Display Range  
Default Value  
Network Access Read Only  
Air Quality Control in Effect This variable indicates if the  
air quality control is active.  
Air Quality  
Control In Effect: Display Range  
Default Value  
Display Units  
Display Range  
Default Value  
F (C)  
0 to 240  
0
No/Yes  
No  
Network Access Read/Write  
Temperature Control Airflow This variable displays the  
airflow set point determined from the temperature loop calcula-  
tion. The zone controller compares the Temperature, Relative  
Humidity, and Air Quality loop. The greatest of the three will  
become the primary damper airflow reference.  
No/Yes  
No  
Temperature  
Control Airflow: Display Units  
Display Range  
%
0 to 100  
100  
Network Access Read Only  
Unoccupied Dehumidification This variable indicates if  
unoccupied dehumidification control is in effect.  
Default Value  
Network Access Read Only  
Unoccupied  
Dehumidification: Display Range  
Default Value  
Relative Humidity Control Airflow This variable dis-  
plays the airflow set point determined from the relative  
humidity loop calculation. The zone controller compares the  
Temperature, Relative Humidity, and Air Quality loop. The  
greatest of the three will become the primary damper airflow  
reference.  
Yes/No  
No  
Network Access Read Only  
Cooling Energy This variable displays the amount of pri-  
mary air source cooling BTUs being provided to the space by  
the terminal. A CCN compatible air source or PAT sensor on a  
linkage master is required.  
Cooling Energy: Display Units  
Display Range  
Relative Humidity  
Control Airflow: Display Units  
Display Range  
%
0 to 100  
0
Btu  
0 to 999999  
0
Default Value  
Network Access Read Only  
Default Value  
Network Access Read Only  
Air Quality Control Airflow This variable displays the air-  
flow set point determined from the air quality loop calculation.  
The zone controller compares the Temperature, Relative  
Humidity, and Air Quality loop. The greatest of the three will  
become the primary damper airflow reference.  
Heating Energy This point displays the amount of primary  
air source heating BTUs being provided to the space by the ter-  
minal. This value will not include zone level heating. A CCN  
compatible air source or PAT sensor on a linkage master is  
required.  
Heating Energy: Display Units  
Display Range  
Air Quality  
Control Airflow: Display Units  
Display Range  
%
0 to 100  
0
Btu  
0 to 999999  
0
Default Value  
Default Value  
Network Access Read Only  
Network Access Read Only  
801  
50  
Copyright 1999 Carrier Corporation  
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.  
PC 111 Catalog No. 533-355 Printed in U.S.A. Form 33ZC-1SI Pg 52 303 11-99 Replaces: New  
Book 1  
4
Tab 11a 13a  

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