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Specifications
16
Drive:
Standard Units
Direct to compressor; belts to AC generator, alternator, and
water pump
SmartPower™ Units
Centrifugal clutch to compressor; belts to electric standby
motor, AC generator, alternator, and water pump
Engine (Continued)
Belt Tension
Belt
Use of Frequency Gauge P/N 204-1903
to measure frequency (Hz) is recommended.
New Belt
Field Reset
AC Generator and Alternator Belt - Standard Units:
37 or 65 Amp Alternator
120 Amp Alternator
106 Hz (111 lbs)
121 Hz (144 lbs)
92 Hz (84 lbs)
105 Hz (108 lbs)
AC Generator Belt - SmartPower Units and
Standard Units with Optional Battery Charger
106 Hz (111 lbs)
92 Hz (84 lbs)
Water Pump Belt
126 Hz (40 lbs)
118 Hz (32 lbs)
Compressor Drive Belt - SmartPower Units Only
12 HP Electric Motor
19 HP Electric Motor
131 Hz (236 lbs)
150 Hz (300 lbs)
114 Hz (177 lbs)
130 Hz (223 lbs)
Alternator Belt - SmartPower Units Only:
All Alternators
216 Hz (75 lbs)
187 Hz (56 lbs)
Refrigeration System
Compressor
Thermo King X430LSC5
Refrigerant Charge—Type
14.5 lb (6.6 kg)—R404A
Compressor Oil Charge
4.3 qt (4.1 liters)*
Compressor Oil Type
Polyol Ester type P/N 203-513
Heat/Defrost Method:
Engine Operation
Electric Operation
Hot gas
Hot gas and optional electric heater strips
High Pressure Cutout
470 +7/-35 psig (3241 + 48/-241 kPa)
Automatic reset @ 375 ± 38 psig (2586 ± 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.
Electrical Control System
Low Voltage
12.5 Vdc
High Voltage
230 Vac from AC generator at engine low speed
345 Vac from AC generator at engine high speed
Battery
One, group C31, 12 volt, (950 CCA recommended for
operation below -15 F [-26 C])
Fuses
See “Base Controller Fuses” on page 83, and other fuses
on pages 87 and 89.
Battery Charging
12 volt, 37 amp, brush type, Thermo King Alternator
Voltage Regulator Setting
13.95 to 14.35 volts @ 77 F (25 C)