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12

.

Table 1: Electrical Data

Unit Model: GSSD

024

030

036

042

048

060

072

Electrical

Volts-60HZ/1Phase

208-230

208-230

208-230

208-230

208-230

208-230

208-230

Compressor RLA

11.4

13.6

15

18.4

20.4

28

32.1

Compressor LRA

56

67

73

95

109

169

169

Blower Motor RLA

3

5

5.6

5.6

5.6

7.4

7.4

Min. Circuit Amp.

14.7

17.4

19.2

23.4

25.9

35.4

40.5

Max Fuse Size

25

30

30

40

45

60

70

Desuperhtr Pump RLA

0.40

0.40

0.40

0.40

0.40

0.40

0.40

Installation- Electrical

Note: 208/230 volt equipment is designed to operate between 197 and 253 volts. Operation outside of these
ranges is likely to adversely affect the service life of the equipment.

Electrical System

The factory tested and installed control 
box contains all of the necessary de-

vices to control unit operation in both 

the heating and cooling mode. A re-
mote wall thermostat is necessary for 

the control of the unit operation. 

See

 

General Information for thermostat in-
formation

.

The nameplate provides information 

for the application of either time delay 

fuses or HACR circuit breakers for 
branch circuit protection from the pri-

mary source of power. 

See Figure 6 for 

component specifications.

24VAC ENERGY LIMITING CLASS II

75VA BREAKER TYPE TRANSFORMER

3 POLE-24VAC

COMPRESSOR CONTACTOR

ALUMINUM

GROUND TERMINAL

10 POLE TERMINAL

STRIP; 20A-250V

FUSE; 2 AMP

480V

COMPRESSOR RUN CAPACITOR

370V

LOCKOUT

RELAY; 24VAC

IF DESUPERHEATER
IS USED, THE FUSE
IS SHIPPED IN A CLOTH
BAG

Figure 6: Electric component location.

Summary of Contents for GSSD

Page 1: ...No SL UN WSHP GSSD IOM 2 6 99 Supersedes WSHPC IOM 2 72 9041 01 Jan 98 Water Source Heat Pump Residential Split Configuration HVAC System An American Standard Company Since American Standard Inc has a policy of continuous product improvement it reserves the right to change specifications and design without notice The installation and servicing of the equipment referred in this booklet should be do...

Page 2: ...lways act in a re sponsible manner to conserve refrigerants for continued use even when acceptable alternatives are available Refrigerant used in any type of air conditioning or refrigerating equipment should be covered for reuse recovered and or recycled for reuse reprocessed reclaimed or properly destroyed whenever it is removed from the equipment Never re lease to the atmosphere Take extra care...

Page 3: ...T 8 VOLTAGE HERTZ PHASE 1 208 230 60 1 DIGIT 9 UNIT ARRANGEMENT 0 Split Condensing Unit DIGIT 10 DESIGN SEQUENCE C DIGIT 11 OPEN DIGIT 0 Open Digit DIGIT 12 OPEN DIGIT 0 Open Digit DIGIT 13 DESUPERHEATER 0 No Desuperheater 1 With Desuperheater DIGIT 14 FREEZE PROTEC TION 1 35 Degree Freezestat 2 20 Degree Freezestat DIGIT 15 OPEN 0 Open DIGIT 16 BRAND C Command Aire T Trane Model Number Descriptio...

Page 4: ... crushed ice The top front half of the diagonal cab inet is removable for access to all of the internal components by removing only two screws All panels are insu lated with 1 2 inch thick neoprene backed acoustical fiberglass insula tion Desuperheater Optional The double wall vented desuperheater uses heat off of the discharge line of the compressor to preheat a home s domestic hot water Hot wate...

Page 5: ...rigerant circuit including the compressor expansion device revers ing valve less solenoid coil and all heat exchangers in contact with refrig erants are warranted for an additional four years parts only Optional extended warranties are available through the local distributor Note If any safety device is bypassed or removed the warranty is voided General Information ...

Page 6: ...elivering carrier Carefully remove the stretch wrap and the top cardboard corner pieces Also remove the 4 four shipping brackets from the lower corners of the unit along with the shipping skid Note Before installing the unit Verify nameplate and model number are correct Inspect the overall quality and appearance of the unit Figure 1 Shipment Packaging Top Cover Corners Shipping Brackets Wooden Ski...

Page 7: ...NPTI WATER OUT 1 NPTI LIQUID LINE 1 2 O D HI VOLTAGE 1 1 8 DIA 6 7 16 5 1 2 3 15 16 1 7 16 LOW VOLTAGE 1 1 8 DIA PUMP CONTROL 1 1 8 DIA SUCTION DISCH 3 4 O D WATER REG SCHRADER PORT DESUPER OUT HI PSI DESUPER IN 1 2 NPT LOW PSI SCHRADER 10 7 16 1 2 NPT SCHRADER FRONT VIEW SIDE VIEW Unit Size 024 Unit Size Unit Weight lbs 024 163 13 ...

Page 8: ... NPTI LIQUID LINE 1 2 O D HI VOLTAGE 1 1 8 DIA 6 7 16 5 1 2 3 15 16 1 7 16 LOW VOLTAGE 1 1 8 DIA PUMP CONTROL 1 1 8 DIA SUCTION DISCH 3 4 O D WATER REG SCHRADER PORT DESUPER OUT HI PSI DESUPER IN 1 2 NPT LO PSI SCHRADER 10 7 16 1 2 NPT SCHRADER FRONT VIEW SIDE VIEW Unit Size 030 042 13 15 16 Unit Size Unit Weight lbs 030 169 036 183 042 203 ...

Page 9: ... DIA 6 7 16 5 1 2 3 15 16 1 7 16 LOW VOLTAGE 1 1 8 DIA PUMP CONTROL 1 1 8 DIA SUCTION DISCH 3 4 O D WATER REG SCHRADER PORT DESUPER OUT HI PSI DESUPER IN 1 2 NPT LO PSI SCHRADER 10 7 16 1 2 NPT SCHRADER FRONT VIEW SIDE VIEW Unit Size 048 072 13 15 16 19 1 16 Installation Location Considerations Unit Size Unit Weight lbs 048 214 060 244 072 277 ...

Page 10: ...gure 3 Water hook up locations Unit Size 024 030 072 Suction Line O D 3 4 7 8 Liquid Line 1 2 O D Figure 4 Liquid and suction lines Water Connections The loop water connections brought to the unit should be 1 inch male national pipe threads The desuperheater optional connec tions should be 1 2 inch male national pipe threads See Figure 3 for water hook up loca tions Refrigeration Connections The r...

Page 11: ...be in stalled per local electric codes by a professional electrician The wires can be run to the unit through the available knockouts and to the control box in the top half of the unit Control wiring to the unit is 24 volt The termination point identifications for the terminal strip is identified per Figure 5 1 Common Hi Voltage Pump Control Low Voltage Terminal Strip to TWE for Low Voltage 1K1 to...

Page 12: ... Electrical System The factory tested and installed control box contains all of the necessary de vices to control unit operation in both the heating and cooling mode A re mote wall thermostat is necessary for the control of the unit operation See General Information for thermostat in formation The nameplate provides information for the application of either time delay fuses or HACR circuit breaker...

Page 13: ...ratures fall below the preset freezestat setting This device may be reset by cycling power but the system should be re viewed for operational error Important Notice The low pressure switch should be wired to activate at refrigerant pressures of 35 psig when a 35 degree F freezestat is used 7 psig when a 20 degree F freezestat is used The installer should verify that the correct freezestat and low ...

Page 14: ... DASHED LINES INDICATE RECOMMENDED FIELD WIRING BY OTHERS DASHED LINE ENCLOSURES AND OR DASHED DEVICE OUTLINES INDICATE COMPONENTS PROVIDED BY THE FIELD DOT LINE ENCLOSURES INDICATE ALTERNATE CIRCUITRY OR AVAILABLE SALES OPTIONS SOLID LINES INDICATE FACTORY WIRING BEFORE INSTALLING FUSE IN DESUPERHEATER CIRCUIT BE CERTAIN PUMP PIPING IS CONNECTED AND FILLED WITH WATER 2 4 LEGEND DEVICE DESCRIPTION...

Page 15: ...t also be acceptable to maintain the integrity and life of the unit The loop fluid must have minimal suspended solids and must be non corrosive to copper or brass See Table 2 for specifications Ground Water Applications Closed Loop Loop sizing should be done by a qual ified installer to insure maximized unit performance In areas where the ground water tem perature is 66 degrees F or less the earth...

Page 16: ...the leaving fluid temperature is 95 degrees F 3 Charge the system unit until a level of 10 degrees superheat is achieved To determine super heat an accurate suction line temperature needs to be taken along with the suction pressure 4 The sub cooling will be approxi mately 8 degrees to 5 degrees F 5 Allow system to run 20 minutes for conditions to stabilize before measuring the super heat 6 Return ...

Page 17: ...p optional when a safety is tripped A triggered lock out relay is a key indication that there is a problem in the system and service may be necessary The safety that caused the lockout relay to energize will reset itself after approximately five minutes If the lockout relay is manually reset by power interruption prior to this five minute period the unit will be unable to run To manually reset the...

Page 18: ...eeping the pressure raised in the loop system during off cycles Electric Strip Heaters If the ETL listed strip heaters are used they can be installed directly inside the TWE air handler These heaters are rated at 230 volts and provide electric heat for both supplemental and emergency heat requirements There are a number of heater capacities available Pump Module The pump module and the hose kit ma...

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