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Specifications (Rev. 04/03)
2
R-134A REFRIGERATION SYSTEM
Compressor Model
X426
Refrigerant Charge
9 lb. (4.1 kg) R-134a
Compressor Oil Charge
4 qt. 6 oz. (3.9 liters)*
Compressor Oil Type: R-134a (Solest 35)
TK No. 203-413 (Ester base) required
Throttling Valve Setting
18 to 20 psig (124 to 138 kPa)
Heat/Defrost Method: Engine Operation
Electric Operation
Hot gas
Hot gas and optional electric heater strips (Model 50)
High Pressure Cutout
325 +25/-0 psig (2088 + 172/0 kPa)
Automatically reset @ 200 ± 20 psig
(1379 ± 138 kPa)
R-404A REFRIGERATION SYSTEM
Compressor Model
X426
Refrigerant Charge
8 lb. (3.63 kg) R-404A
Compressor Oil Charge
4 qt 6 oz. (3.9 liters)*
Compressor Oil Type (Solest 35)
TK 203-413 (Ester required)
Throttle Valve Setting
18 to 20 psig (124 to 138 kPa)
Heat/Defrost Method: Engine Operation
Electric Operation
Hot gas
Hot gas and optional electric heater strips (Model 50)
High Pressure Cutout
470 ± 7 psig (3241 ± 48 kPa)
Automatically reset @ 375 ± 38 psig
(2585 ± 262 kPa)
* When the compressor is removed from the unit, oil level should be noted or the oil removed from the
compressor should be measured so that the same amount of oil can be added before placing the
replacement compressor in the unit.
ENGINE CLUTCH—HILLIARD
Model
TK No. 107-257 (Dwg. No. 5D44655G01)
Engagement
900 ± 100 rpm
Dynamic Torque
66 ft-lb (89.5 N•m) minimum @ 1600 rpm
ELECTRICAL CONTROL SYSTEM
Control System Voltage
12.5 Vdc
Battery Charging System
12 V 23 amp brush type integral alternator
Voltage Regulator Setting
14 V @ 70 F (21.1 C)
Alternator/Regulator Capacitor
4.7 mfd 50 Vdc
Alternator/Output Capacitor
.5 mfd 100 Vdc
NOTE: Disconnect components from unit circuit to check resistance.
Summary of Contents for 088669
Page 4: ......
Page 8: ......
Page 12: ...Safety Precautions Rev 04 03 iv PUB126...
Page 13: ...Safety Precautions Rev 04 03 v aea105...
Page 14: ......
Page 28: ...Unit Description Rev 04 03 14 Rear View Curbside RD II SR Evaporator aea105...
Page 32: ...Unit Description Rev 04 03 18 Power Receptacle Box RD II SR 50 aea102...
Page 76: ...Refrigeration Maintenance Rev 04 03 62...
Page 77: ...Refrigeration Maintenance Rev 04 03 63...
Page 81: ...Refrigeration Maintenance Rev 04 03 67...
Page 103: ...89 Hilliard Clutch Maintenance Clutch Assembly...
Page 106: ...Hilliard Clutch Maintenance Rev 04 03 92 12 Install retaining ring Clutch Torque Values...
Page 125: ...111 Cool Cycle RD II SR with TherMax Heating...
Page 126: ...112 Condenser Cycle RD II SR with TherMax Heating...
Page 127: ...113 Heat and Defrost Cycle RD II SR with TherMax Heating...
Page 129: ...115...
Page 130: ...116...
Page 131: ...117...
Page 132: ...118...
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