Trane Heat Pump WSHP DS 6 User Manual

WSHP-DS-6  
March 2000  
Water Source  
Heat Pump  
Water-to-Water  
Model WPWD  
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Table  
of  
Contents  
Introduction  
2
Features and Benefits  
Model Number Description  
General Data  
4
7
8
Application Considerations  
Electrical Data  
9
18  
19  
25  
28  
30  
31  
Performance Data  
Dimensional Data  
Wiring Diagram  
Accessory Options  
Mechanical Specifications  
3
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Features  
and  
Benefits  
General  
WPWD cabinet includes full length  
channel stiffeners underneath the  
unit.  
General  
The water source heat pump model  
WPWD (water-to-water) offers a  
range of capacities from 2 tons to 6  
tons. All units are housed in one  
standard compact cabinet.  
Heat Exchanger  
The water to refrigerant heat ex-  
changers are made of stainless  
steel brazed plate. This design pro-  
vides a larger amount of surface  
area for heat exchange between  
the water and the refrigerant. (See  
Figure 2 for cut-away).  
Cabinet  
The cabinet, which allows easy ac-  
cess for installation and service, is  
constructed of heavy gauge metal.  
The cabinet finish is produced by a  
corrosion resistant electrostatic  
powder paint coating in the color  
“soft dove”.  
.
The top half of the diagonal cabinet  
is removable for access to the inter-  
nal components by removing two  
screws. (See Figure 1).  
Figure 2: Brazed plate heat ex-  
changer  
Piping  
All low-side copper tubing in the re-  
frigeration circuit is insulated to pre-  
vent condensation at low entering  
liquid temperatures.  
Filter Drier  
A filter drier is provided in each unit  
for dehydration and cleaning of the  
refrigeration circuit. This feature  
adds to the unit life.  
Figure 1: Unit access  
Insulation  
Expansion Valve  
To reduce condensation and com-  
pressor noise, the cabinets are in-  
sulated with 1/2-inch thick,  
neoprene backed, acoustical fiber-  
glass insulation.  
As standard, Trane provides a bal-  
anced port thermal expansion  
valve. This valve precisely meters  
the refrigerant flow through the cir-  
cuitry to achieve the desired heat-  
ing or cooling over a wide range of  
fluid temperatures.  
Compressor  
The model WPWD contains a high  
efficiency scroll compressor for reli-  
able and efficient operation. The  
scroll compressor’s unique design  
lends itself to having one of the low-  
est sound levels in the industry.  
Water Connections  
All water connections feature  
1-inch brass swivel connectors. Be-  
cause the connectors are swivel, a  
back-up wrench is not necessary  
when tightening.  
The compressor is internally isolat-  
ed and placed on a stiff base plate  
designed to further reduce vibration  
noise. As an added benefit, the  
4
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Features  
and  
Benefits  
Controls  
24 Volt Controls  
All electrical controls and safety de-  
vices are factory wired, tested, and  
mounted in the unit. The control  
package includes:  
50 VA Transformer  
24 VAC Contactor  
Lockout  
Relay  
Ground  
q Compressor contactor  
q 24 Volt transformer  
q Lockout relay  
q Compressor run capacitor (1-  
Compressor  
Run Capacitor  
phase units only)  
q Reversing valve coil (For heat  
Low Voltage  
pump only)  
High Voltage  
2 Amp Fuse  
(for use with  
desuperheater  
option)  
q Fuse (for desuperheater)  
10 Pole Terminal  
Strip  
A terminal strip with 1/4fork con-  
nections will be provided for field  
thermostat control wiring. (See Fig-  
ure 3).  
Safety Devices  
Each Trane water-to-water unit con-  
tains safety devices to prevent com-  
pressor damage. These include:  
Thermostat  
Low Voltage  
Figure 3: Controls  
Low Temperature  
Detection Thermostat  
Lockout Relay  
q Low pressure switch  
When the safety controls are acti-  
vated to prevent compressor short  
cycling, the lockout relay (circuit)  
can be reset at the thermostat, or by  
cycling power to the unit.  
q High pressure switch  
The low water temperature detec-  
tion thermostat is provided to pro-  
tect the water-to-refrigerant heat  
exchanger from freezing. This de-  
vice prevents compressor opera-  
tion if leaving water temperature is  
below 35 F. An optional 20 F tem-  
perature thermostat may be applied  
for low water temperatures where  
an appropriate antifreeze solution is  
used.  
q Temperature sensor (freezestat)  
q Internal overload protection  
Low Pressure Switch  
The low pressure switch prevents  
compressor operation under low  
charge or in excessive loss of  
charge situations. This device is set  
to activate at refrigerant pressures  
of 35 psig when a 35 F low temper-  
ature detection thermostat is ap-  
plied. An optional 7 psig pressure  
switch is available when using a 20  
F temperature low temperature de-  
tection thermostat.  
Thermostat Hook-up  
Low voltage and high voltage  
knockouts are provided in the top  
half of the unit. All control wiring to  
the unit should be 24 Volt.  
(See Figure 4 for termination  
points).  
High Pressure Switch  
For internal overload protection,  
Trane provides a high pressure  
switch. This de-energizes the com-  
pressor when discharge pressure  
become excessive.  
24V Power  
Compressor  
Reversing Valve  
(energized in clg)  
Figure 4: Typical thermostat termination points  
5
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Features  
and  
Heat  
Recovery  
Benefits  
Desuperheater Option  
The unit employs a circulating pump  
to move water through a double wall  
heat exchanger. It then returns the  
heated water to the water tank. This  
water is heated by superheated re-  
frigerant discharge gas from the  
compressor. This heat energy can  
now be utilized as a cost savings in  
water heating.  
The desuperheater option is a heat  
recovery system packaged within  
the water-to-water unit. This option  
captures heat energy from the heat  
pump for considerable cost savings  
all year. Since it is active in either  
operating mode, it can provide hot  
water at a reduced cost while in  
heating or virtually free hot water  
while in cooling.  
Circulating Pump  
The pump is a circular, single stage  
open system pump. Its specifica-  
tions include:  
Standard equipment includes:  
q 1/25 HP (horsepower)  
q 230 Volt / 60 Hertz / 1 phase  
q 90 Watts  
q Desuperheater (heat  
exchanger)  
q Circulating pump  
q Entering water temperature  
q .40 Amps  
detector (125 F stops pump)  
q 2865 rpm (revolutions per  
q Discharge refrigerant  
temperature detector (145 F  
starts pump)  
minute)  
q 2 MF (microfarad) / 400 Volt  
capacitor  
q Fuse  
The pump contains a minimum fluid  
temperature rating of 50 F, a maxi-  
mum fluid temperature (open sys-  
tem) of 140 F, and a maximum  
working pressure of 145 psi.  
q Water heater hook-up kit  
Hot water  
(Supply)  
Cold water  
(Supply)  
from Desuperheater  
to Desuperheater  
Isolation  
Valves  
(by others)  
Desuper-out  
Desuper-in  
Water heater  
hook-up kit with  
drain valve  
6
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Model Number  
Description  
1
5
10  
15  
Digit 11: Freeze Protection  
(source side)  
Digits 1 & 2: Product Type  
WP = Trane Commercial Water  
Source Heat Pump  
1 = Brazed Plate Heat Exchanger  
with 35 F (1.67 C) Freezestat  
2 = Brazed Plate Heat Exchanger  
with 20 F (-6.67 C) Freezestat  
Digit 3: Product Configuration  
W = Water-to-Water  
Digit 4: Development Sequence D  
Digit 12: Freeze Protection  
(load side)  
1 = Brazed Plate Heat Exchanger  
with 35 F (1.67 C) Freezestat  
2 = Brazed Plate Heat Exchanger  
with 20 F (-6.67 C) Freezestat  
Digits 5-7: Unit Nominal Capacity  
024 = 24.0 MBh  
036 = 36.0 MBh  
042 = 42.0 MBh  
048 = 48.0 MBh  
060 = 60.0 MBh  
072 = 72.0 MBh  
Digit 13: Desuperheater Option  
0 = No Desuperheater  
1 = With Desuperheater  
Digit 14: Open  
Digit 8: Voltage / Hertz / Phase  
1 = 208-230/60/1  
3 = 208-230/60/3  
4 = 460/60/3  
0 = Open Digit  
Digit 15: Open  
5 = 575/60/3  
6 = 220-240/50/1  
7 = 265/60/1  
0 = Open Digit  
9 = 380-415/50/3  
Digit 16: Sticker Option  
T = Trane  
C = Command-Aire  
Digit 9: Unit Arrangement  
0 = Water-to-Water  
Digit 10: Design Sequence C  
7
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General  
Data  
Table G-1: Physical Data (English)  
Model: WPWD  
024  
036  
042  
048  
060  
072  
Width of cabinet (in)  
23  
23  
23  
23  
23  
23  
Width of cabinet and connections (in)  
24.8  
24.3  
23.3  
Scroll  
3.25  
24.8  
24.3  
23.3  
Scroll  
3.375  
24.8  
24.3  
23.3  
Scroll  
3.50  
24.8  
24.3  
23.3  
Scroll  
4.00  
24.8  
24.3  
23.3  
Scroll  
4.25  
24.8  
24.3  
23.3  
Scroll  
4.25  
Unit Size  
Height (in)  
Depth (in)  
Compressor  
R-22  
Type  
Refrigerant (lbs)  
Approximate Weight  
(lbs)  
With crate (lbs)  
163  
183  
203  
214  
244  
277  
Table G-2: Specifications (English)  
Model: WPWD  
024  
036  
042  
048  
060  
072  
Source and Load  
GPM  
4.0  
6.0  
7.0  
7.50  
10  
10  
Source and Load  
Cooling  
Ft. Hd.  
1.4  
3.2  
4.4  
31.3  
15.7  
39.69  
3.7  
5.0  
9.2  
9.2  
Load EWT 45 F (MBH)  
Load EWT 45 F (EER)  
Load EWT 100 F (MBH)  
Load EWT 100 F (COP)  
18.24  
15.0  
26.74  
15.7  
35.55  
15.4  
45.98  
15.5  
51.01  
14.9  
Cooling  
Heating  
25.38  
3.64  
33.34  
3.62  
42.87  
3.45  
57.15  
3.62  
67.47  
3.62  
Heating  
Note:  
q Source EWT (entering water temperature) is at 75 F  
q Unit selection should be based upon extended specifications at lowest or highest expected source and load  
EWT (entering water temperature)  
q Refer to pages 19-25 for extended performance tables.  
8
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Application  
Considerations  
Closed Loop System  
Closed loop systems (both ground source  
and surface water) provide heat rejection  
and heat addition to maintain proper water  
source temperatures.  
Operating and maintenace cost are low  
because an auxillary fossil fuel boiler and  
cooling tower are not required to maintain  
the loop temperature. The technology has  
advanced to the point where many electric  
utilities and rural electric cooperatives are  
offering incentives for the installation of  
geothermal systems. These incentives are  
offered because of savings to the utilities  
due to reduced peak loads that flatten out  
the system demand curve over time.  
For ground source geothermal systems,  
Figure 5: Ground source geothermal system  
(See Figure 5), when building cooling  
requirements  
cause  
loop  
water  
temperatures to rise, heat is dissapated into  
the cooler earth through buried polyethylene  
pipe heat exchangers. If reversed, heating  
demands cause the loop temperature to fall,  
enabling the earth to add heat to meet load  
requirements.  
Where local building codes require water  
retention ponds for short term storage of  
surface run-off, a ground source surface  
water system, (See Figure 6), can be very  
cost effective. This system has all the  
advantages as the geothermal system in  
cooling dominated structures.  
Another benefit of the ground source system  
is that it is environmentally friendly. The loop  
is made of chemically inert, non-polluting  
polyethylene pipe. The heat pumps use  
HCFC-22 refrigerant, which has a lower  
ozone depletion potential than CFC-12.  
Because the closed loop system does not  
require a heat adder, there are no CO  
2
emissions. Less electric power consumed  
reduces secondary emissions from the  
power plant. Therefore, the system offers  
advantages not seen by other central  
furnace or heat pump systems.  
Figure 6: Ground source surface water system  
9
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Application  
Considerations  
Open Loop System  
Where an existing or proposed well can  
provide an ample supply of suitable quality  
water, ground water systems may be very  
efficient. (See Figure 7)  
Operation and benefits are similar to those  
for closed loop systems. There are however  
several considerations that should be  
addressed prior to installation.  
q An acceptable way to discharge the  
significant volume of used water from  
the heat pump should be defined. It may  
be necessary to install a recharge well to  
return the water to the aquifer.  
q Water quality must be acceptable, with  
minimal suspended solids. To help  
ensure clean water, a straining device  
may be required.  
Figure 7: Open Loop system  
Cooling Tower/Boiler System  
A cooling tower/boiler system (see Figure 8)  
utilizes a closed heat recovery loop along  
with multiple water source heat pumps in a  
more conventional manner.  
Typically, a boiler is employed to maintain  
closed loop temperatures above 60 F and a  
cooling tower to maintain closed loop  
temperature below 90 F. All the units  
function independantly, either by adding  
heat, or removing heat from the closed  
water loop, making this system more  
efficient than air cooled systems.  
The cooling tower/boiler system provides a  
low installation cost to the owner than other  
systems. A good selection for large building  
design needs.  
Figure 8: Cooling tower/boiler system  
10  
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Application  
Considerations  
Source Side  
vs.  
Load Side  
source side heat exchanger to the  
load side heat exchanger.  
Source vs. Load  
The model WPWD water-to-water  
system contains two water to refrig-  
erant heat exchangers. The two  
heat exchangers enable the system  
to be divided into a source and load  
separation.  
The load sideheat exchanger  
takes the place of a DX (direct ex-  
pansion) air coil. It provides treated  
fluid (hot or cold) to a mechanical  
device. These mechanical devices  
include designs such as radiant slab  
heating, hydronic coils, or fresh air  
ventilation units.  
The source sideheat exchanger  
performs as in a standard water to  
air heat pump system. The source is  
typically supplied through a cooling  
tower, boiler, closed loop, or open  
well system. During the refrigeration  
cycle, heat is transferred from the  
See Figure 9 for a basic schematic  
of source side verses load side of a  
water-to-water system.  
Water-In  
(Load Side)  
Water-In  
(Source Side)  
Fluid traveling  
Fluid traveling  
TO or FROM a  
TO or FROM a cooling  
tower, boiler, ground  
loop or open well  
system  
mechanical device  
such as hydronic coil,  
concrete slab, or flooring  
Refrigeration  
Circuit  
Water-Out  
(Load Side)  
Water-Out  
(Source Side)  
Figure 9: Source/Load schematic  
11  
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Application  
Considerations  
Closed Loop  
Geothermal  
Hydronic Ice  
Melting Via  
a Water-to-Water  
Unit  
Geothermal Space  
Temperature  
Heating / Cooling  
Refrigeration  
Equipment  
(Closed) Ground Loop  
Heat Exchanger  
Cold climates may take an even  
Geothermal  
Typical Benefits  
greater advantage of the heat  
rejected by the stores refrigeration  
equipment and space conditioning  
heat pumps. This rejected heat  
may be used by Tranes water-to-  
water heat pump(s) to heat water  
for a car wash and melt ice off of a  
driveway (allowing the car wash to  
remain open all winter).  
This integrated system also  
eliminates thermal short circuiting  
between the intakes and the  
exhausts of an air cooled  
refrigeration system.  
Integrated System  
q Annual energy savings means  
The Trane ground source heat  
pump is highly efficient in service  
station applications.  
This integrated system design  
takes advantage of the earths  
relatively constant temperature  
(45 F to 70 F) to space condition  
lower operational costs  
q Takes advantage of the earths  
constant temperature rather  
than high fluctuation of ambient  
temperature  
q Heat energy rejected from the  
space conditioner can be  
utilized for ice or snow melting  
of a parking lot in colder  
climates  
the  
building.  
In  
addition,  
appliances such as freezers, ice  
makers and a display coolers may  
be added to the loop for further  
gains in the reduction of consumed  
energy.  
q Two to three year estimated  
payback on installation costs  
12  
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Application  
Considerations  
Fresh Air  
Ventilation  
Water-Out  
(source)  
Fresh Air Ventilation  
with Water-to-Water Units  
Water-Out  
(load)  
Water-In  
(source)  
Water-In  
(load)  
Exhaust  
Air  
Fresh  
Air  
Geothermal Space  
Heating and Cooling  
(Closed) Ground  
Loop Heat  
Exchanger  
Water-to-Water  
and Fresh Air  
Ventilation  
Geothermal energy systems take  
advantage of the fact that  
subsurface earth temperatures are  
constant year-round, which makes  
the earth an ideal heat source and  
heat sink for heat pumps.  
the makeup air unit hydronic coil to  
heat the makeup air to maintain  
building requirements. This  
ventilation system incorporates its  
own constant volume pumps to pull  
system water off the loop and  
return it. There is no need for  
additional heat injection using  
boilers for this system. (See Page  
14 for mechanical example).  
energy to temper the ventilated air  
in accordance with the building  
needs. After leaving the reheat  
hydronic coil, the condenser water  
is then returned to the building loop  
for further heat rejection.  
The above design goes further than  
just space heating and cooling.  
Fresh air ventilation is achieved by  
using Trane water-to-water units  
teamed with a hydronic outside air  
unit, and exhaust air unit to meet  
total building requirements.  
Typical Benefits  
In heating, the water-to-water units  
switch to hot water generation. The  
water for ventilation air tempering  
first circulates through the hydronic  
coil to the exhaust air unit to pick  
up heat from the building exhaust  
airstream. The water then  
circulates through the water-to-  
water heat pumps for further heat  
introduction before being used by  
q Annual energy savings means  
lower energy costs  
In the cooling season, the  
evaporator water from the heat  
pumps is circulated through a  
hydronic coil in the makeup air unit  
to provide cooling and  
dehumidification. The condenser  
water is used to provide reheat  
q Building comfort and climate  
control  
13  
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Application  
Considerations  
Fresh Air  
Ventilation  
Mechanical  
EXHAUST  
OUTSIDE  
AIR  
AIR  
HOT WATER  
COIL  
AIR  
HANDLER  
AIR  
HANDLER  
EXP TANK  
AUTOMATIC  
AIR VENT  
HAND  
PUMP  
WPWD  
DRAIN VA  
PRESSURE  
RELIEF VA  
WPWD  
WPWD  
WPWD  
BALL VA  
SUPPLY  
RETURN  
14  
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Application  
Considerations  
Central  
Pumping  
System  
6
7
1
5
2
4
3
Figure 10: Central pumping system installation  
minal devices with 45 F or  
Central Pump  
Application  
General  
120 F fluid.  
A central pumping system involves  
a single pump design usually locat-  
ed within a basement or mechanical  
room to fulfill pumping requirements  
for the entire building system. With  
a central pumping system, an auxil-  
iary pump is typically applied to  
lessen the likelihood of system  
down-time if the main pump mal-  
functions.  
ꢄꢁ The sound attenuation pad  
should be slightly oversized for  
unit. This field supplied product  
is recommended for sound  
absorption of unit.  
ꢀꢁ Ball valves should be installed  
in the supply and return lines  
for unit isolation and unit water  
flow rate balancing (if an auto-  
matic flow device is not  
ꢅꢁ The low voltage control con-  
nection provided on the unit is  
large enough for attaching con-  
duit.  
selected). This connection,  
along with hoses, are also rec-  
ommended for backflushing  
and chemical cleaning of the  
water to refrigerant heat  
ꢆꢁ The central systems supply  
and return lines should be  
sized to handle the required  
flow with a minimum pressure  
drop.  
exchanger.  
(See Figure 10 for unit installation of  
a central pumping system).  
ꢂꢁ Flexible hoses may be used  
to connect the water supply  
and return lines to the water  
inlets and outlets. These hoses  
reduce possible vibration  
between the unit and the rigid  
system.  
Note: Pipe will sweat if low  
temperature water is run  
through the supply or return  
lines. Trane recommends that  
these lines be insulated to pre-  
vent damage from condensa-  
tion.  
Note: Hoses and or pipes  
should be made of braided  
stainless steel, and sized suit-  
ably for the systems water  
pressure and flow rate.  
ꢇꢁ The field supplied line voltage  
disconnect should be  
installed for branch circuit pro-  
tection. The unit is supplied  
with an opening for attaching  
conduit.  
ꢃꢁ Load side connections are  
typically used to supply the ter-  
ꢀꢁ  
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Application  
Considerations  
Well Water  
Systems  
7
6
5
9
8
1
3
2
4
Figure 11: Well water installation  
ꢄꢁ The sound attenuation pad  
Well Water  
Application  
General  
should be slightly oversized for  
the unit. This field supplied  
product is recommended for  
sound absorption of unit.  
A well water application involves an  
open loop water supply. The water  
is drawn from an open well or pond  
into the unit. A straining device is  
required with this application.  
ꢀꢁ Ball valves should be installed  
in the supply and return lines  
for unit isolation and unit water  
flow rate balancing (if auto-  
matic flow device is not  
ꢅꢁ The low voltage control con-  
nection provided on the unit is  
large enough for attaching con-  
duit.  
selected). This connection,  
along with hoses, are also rec-  
ommended for backflushing  
and chemical cleaning of the  
evaporator and the condenser.  
Similar to the closed loop design,  
an open water supply usually  
remains at a constant temperature  
year round utilizing maximum  
efficiency in unit design.  
ꢆꢁ The expansion tank should be  
sized to maintain pressure on  
the system.  
ꢇꢁ The line voltage disconnect  
should be installed for branch  
circuit protection. The unit is  
supplied with an opening for  
attaching conduit.  
ꢂꢁ Flexible hoses may be used to  
connect the water supply and  
return lines to the water inlets  
and outlets. These hoses  
reduce possible vibration  
between the unit and the rigid  
system.  
See Figure 11 for open well water  
installation.  
ꢈꢁ The water regulating valve  
assembly is used to maintain  
refrigerant pressure in refriger-  
ant circuit as the entering water  
temperature varies or is cooler  
than ideal.  
Note: Hoses and or pipes  
should be braided stainless  
steel, and sized suitable for the  
system’s water pressure and  
flow rate.  
ꢉꢁ Schrader connections are  
factory installed for ease of  
attaching the water regulating  
valve assembly.  
ꢃꢁ Load side connections are  
used to supply the terminal  
device.  
16  
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Application  
Considerations  
Distributed  
Pumping  
System  
8
7
6
1
5
2
4
3
Figure 12: Distibuted pumping installation  
ꢄꢁ The sound attenuation pad  
should be slightly oversized for  
the unit. This field supplied  
General  
Earth Coupled  
Application  
A distributed pumping system con-  
tains either a single or dual pump  
module connected directly to the  
units supply and return source side.  
product is recommended for  
ꢀꢁ Ball valves should be installed  
in the supply and return lines  
for unit isolation.  
sound absorption of unit.  
ꢅꢁ The low voltage control con-  
nection provided on the unit is  
large enough for attaching con-  
duit.  
This design requires individual ꢂꢁ Flexible hoses may be used  
to connect the water supply  
and return lines to the water  
inlets and outlets. These hoses  
reduce possible vibration  
between the unit and the rigid  
system.  
Note: Hoses and or pipes  
should be braided stainless  
steel, and sized suitable for the  
systems water pressure and  
flow rate.  
pump modules specifically sized for  
each water source heat pump. Cen-  
tralized pumping is not required.  
ꢆꢁ The ground loop pump mod-  
ule is designed for circulating  
commercial loops that require  
a maximum flow rate of 20  
gpm.  
See Figure 12 for a distributed  
pumping installation.  
ꢇꢁ The line voltage disconnect  
should be installed for branch  
circuit protection. The unit is  
supplied with an opening for  
attaching conduit.  
ꢃꢁ Load side connections are  
used to supply the terminal  
device.  
ꢈꢁ All polyethene pipe in the  
closed loop design should be  
insulated to eliminate the risk  
of sweating.  
17  
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Electrical  
Data  
Table E-1: Electrical Data  
024  
036  
042  
048  
060  
072  
Model: WPWD  
Voltage  
208-230/60hz/1phase  
Compressor RLA  
11.4  
56  
15  
73  
18.4  
95  
20.4  
109  
28.6  
45  
28  
169  
39  
32.1  
169  
45  
Compressor LRA  
Minimum Circuit Ampacity  
Max Fuse Size  
16  
21  
25.8  
40  
25  
30  
60  
70  
Aux Pump Amps  
2.5  
14.3  
0.4  
2.5  
18.8  
0.4  
2.5  
23  
2.5  
2.5  
35  
2.5  
40.1  
0.4  
Desuperheater Min Cir Ampacity  
Desuperheater Pump RLA  
Voltage  
25.5  
0.4  
0.4  
0.4  
208-230/60hz/3phase  
Compressor RLA  
-
-
-
-
-
-
-
10.7  
63  
11.4  
77  
13.9  
88  
20  
123  
28  
19.3  
137  
27  
Compressor LRA  
Minimum Circuit Ampacity  
Max Fuse Size  
15  
16  
19.4  
30  
20  
25  
45  
40  
Aux Pump Amps  
2.5  
13.4  
0.4  
2.5  
14.3  
0.4  
2.5  
2.5  
25  
2.5  
24.1  
0.4  
Desuperheater Min Cir Ampacity  
Desuperheater Pump RLA  
Voltage  
17.4  
0.4  
0.4  
460/60hz/3phase  
Compressor RLA  
-
-
-
-
-
-
-
5
5.7  
39  
8
7.1  
44  
7.5  
49.5  
10.5  
15  
10  
62  
Compressor LRA  
31  
7
Minimum Circuit Ampacity  
Max Fuse Size  
10  
14  
15  
2.5  
6.3  
0.4  
15  
2.5  
7.1  
0.4  
15  
20  
Aux Pump Amps  
2.5  
8.9  
0.4  
2.5  
2.5  
12.5  
0.4  
Desuperheater Min Cir Ampacity  
Desuperheater Pump RLA  
Voltage  
9.4  
0.4  
575/60hz/3phase  
Compressor RLA  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
6.4  
40  
9
7.8  
50  
Compressor LRA  
Minimum Circuit Ampacity  
Max Fuse Size  
11  
15  
2.5  
8
15  
Aux Pump Amps  
2.5  
9.8  
0.4  
Desuperheater Min Cir Ampacity  
Desuperheater Pump RLA  
Voltage  
0.4  
265/60hz/1phase  
Compressor RLA  
9.6  
47  
14.3  
71  
16.4  
83  
17.1  
98  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Compressor LRA  
Minimum Circuit Ampacity  
Max Fuse Size  
13.5  
20  
20  
23  
24  
30  
35  
35  
Aux Pump Amps  
2.5  
12  
2.5  
17.9  
0.4  
2.5  
20.5  
0.4  
2.5  
21.4  
0.4  
Desuperheater Min Cir Ampacity  
Desuperheater Pump RLA  
0.4  
18  
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