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Electrical
Data

Table E-1: Electrical Data

 

Model: WPWD

024

036

042

048

060

072

Voltage

208-230/60hz/1phase

Compressor RLA

11.4

15

18.4

20.4

28

32.1

Compressor LRA

56

73

95

109

169

169

Minimum Circuit Ampacity

16

21

25.8

28.6

39

45

Max Fuse Size

25

30

40

45

60

70

Aux Pump Amps

2.5

2.5

2.5

2.5

2.5

2.5

Desuperheater Min Cir Ampacity

14.3

18.8

23

25.5

35

40.1

Desuperheater Pump RLA

0.4

0.4

0.4

0.4

0.4

0.4

Voltage

208-230/60hz/3phase

Compressor RLA

-

10.7

11.4

13.9

20

19.3

Compressor LRA

-

63

77

88

123

137

Minimum Circuit Ampacity

-

15

16

19.4

28

27

Max Fuse Size

-

20

25

30

45

40

Aux Pump Amps

-

2.5

2.5

2.5

2.5

2.5

Desuperheater Min Cir Ampacity

-

13.4

14.3

17.4

25

24.1

Desuperheater Pump RLA

-

0.4

0.4

0.4

0.4

0.4

Voltage

460/60hz/3phase

Compressor RLA

-

5

5.7

7.1

7.5

10

Compressor LRA

-

31

39

44

49.5

62

Minimum Circuit Ampacity

-

7

8

10

10.5

14

Max Fuse Size

-

15

15

15

15

20

Aux Pump Amps

-

2.5

2.5

2.5

2.5

2.5

Desuperheater Min Cir Ampacity

-

6.3

7.1

8.9

9.4

12.5

Desuperheater Pump RLA

-

0.4

0.4

0.4

0.4

0.4

Voltage

575/60hz/3phase

Compressor RLA

-

-

-

-

6.4

7.8

Compressor LRA

-

-

-

-

40

50

Minimum Circuit Ampacity

-

-

-

-

9

11

Max Fuse Size

-

-

-

-

15

15

Aux Pump Amps

-

-

-

-

2.5

2.5

Desuperheater Min Cir Ampacity

-

-

-

-

8

9.8

Desuperheater Pump RLA

-

-

-

-

0.4

0.4

Voltage

265/60hz/1phase

Compressor RLA

9.6

14.3

16.4

17.1

-

-

Compressor LRA

47

71

83

98

-

-

Minimum Circuit Ampacity

13.5

20

23

24

-

-

Max Fuse Size

20

30

35

35

-

-

Aux Pump Amps

2.5

2.5

2.5

2.5

-

-

Desuperheater Min Cir Ampacity

12

17.9

20.5

21.4

-

-

Desuperheater Pump RLA

0.4

0.4

0.4

0.4

-

-

Содержание WPWD024

Страница 1: ...WSHP DS 6 March 2000 Water Source Heat Pump Water to Water Model WPWD WSHP DS 6 ...

Страница 2: ...cement 130 F In the heating mode the water to water unit efficiently extracts heat from a water source source side such as a well lake boiler tower loop or closed ground loop heat ex changer then transfers the heat to another flow of water load side The amount of heat added to the load side is greater than the amount taken from the source side The electrical energy supplied to the compressor is ad...

Страница 3: ...nd Benefits 4 Model Number Description 7 General Data 8 Application Considerations 9 Electrical Data 18 Performance Data 19 Dimensional Data 25 Wiring Diagram 28 Accessory Options 30 Mechanical Specifications 31 Table of Contents ...

Страница 4: ...laced on a stiff base plate designed to further reduce vibration noise As an added benefit the WPWD cabinet includes full length channel stiffeners underneath the unit 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 awa...

Страница 5: ... 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 High Pressure Switch For internal overload protection Trane provides a high pressure switch This de energizes the com pressor when discharge pressure become excessive Lo...

Страница 6: ...125 F stops pump q Discharge refrigerant temperature detector 145 F starts pump q Fuse q Water heater hook up kit 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 h...

Страница 7: ...265 60 1 9 380 415 50 3 Digit 9 Unit Arrangement 0 Water to Water Digit 10 Design Sequence C Digit 11 Freeze Protection 1 Brazed Plate Heat Exchanger source side with 35 F 1 67 C Freezestat 2 Brazed Plate Heat Exchanger with 20 F 6 67 C Freezestat Digit 12 Freeze Protection 1 Brazed Plate Heat Exchanger load side with 35 F 1 67 C Freezestat 2 Brazed Plate Heat Exchanger with 20 F 6 67 C Freezestat...

Страница 8: ...77 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 Ft Hd 1 4 3 2 4 4 5 0 9 2 9 2 Cooling Load EWT 45 F MBH 18 24 26 74 31 3 35 55 45 98 51 01 Cooling Load EWT 45 F EER 15 0 15 7 15 7 15 4 15 5 14 9 Heating Load EWT 100 F MBH 25 38 33 34 39 69 42 87 57 15 67 47 Heating Load EWT 100 F COP 3 64 3 62 3 7 3 45 3 62 3 62 Note...

Страница 9: ... 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...

Страница 10: ...imal suspended solids To help ensure clean water a straining device may be required Figure 7 Open Loop system Figure 8 Cooling tower boiler 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 abo...

Страница 11: ...at exchanger to the load side heat exchanger The load side heat 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 See Figure 9 for a basic schematic of source side verses load side of a water to water system Wate...

Страница 12: ...climates may take an even greater advantage of the heat rejected by the stores refrigeration equipment and space conditioning heat pumps This rejected heat may be used by Trane s 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 an...

Страница 13: ...rovide cooling and dehumidification The condenser water is used to provide reheat 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 In heating the water to water units switch to hot water generation The water for ventilation air tempering first circula...

Страница 14: ...tion Considerations HOT WATER COIL EXHAUST AIR OUTSIDE AIR AIR HANDLER AIR HANDLER EXHAUST AIR TO HEAT PUMPS EXHAUST AIR FROM TOILET RMS WPWD AUTOMATIC AIR VENT EXP TANK DRAIN VA HAND PUMP PRESSURE RELIEF VA WPWD WPWD WPWD BALL VA SUPPLY RETURN ...

Страница 15: ...d for sound absorption of unit The low voltage control con nection provided on the unit is large enough for attaching con duit The central systems supply and return lines should be sized to handle the required flow with a minimum pressure drop 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 fr...

Страница 16: ...o 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 system s water pressure and flow rate Load side connections are used to supply the terminal device The sound attenuation pad should be slightly oversized for the u...

Страница 17: ...ovided on the unit is large enough for attaching con duit The ground loop pump mod ule is designed for circulating commercial loops that require a maximum flow rate of 20 gpm The line voltage disconnect should be installed for branch circuit protection The unit is supplied with an opening for attaching conduit All polyethene pipe in the closed loop design should be insulated to eliminate the risk ...

Страница 18: ...pacity 13 4 14 3 17 4 25 24 1 Desuperheater Pump RLA 0 4 0 4 0 4 0 4 0 4 Voltage 460 60hz 3phase Compressor RLA 5 5 7 7 1 7 5 10 Compressor LRA 31 39 44 49 5 62 Minimum Circuit Ampacity 7 8 10 10 5 14 Max Fuse Size 15 15 15 15 20 Aux Pump Amps 2 5 2 5 2 5 2 5 2 5 Desuperheater Min Cir Ampacity 6 3 7 1 8 9 9 4 12 5 Desuperheater Pump RLA 0 4 0 4 0 4 0 4 0 4 Voltage 575 60hz 3phase Compressor RLA 6 ...

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