Ingersoll-Rand 900829, Maintenance Manual

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Specifications
17
Refrigerant System
R-134A REFRIGERATION SYSTEM (V-520)
Refrigerant Charge: V-520 - Model 10 7.93 lb (3.60 kg) R-134a
V-520 - Model 20 7.93 lb (3.60 kg) R-134a
V-520 - Model 30 8.00 lb (3.63 kg) R-134a
V-520 - Model 50 8.00 lb (3.63 kg) R-134a
Defrost Termination Switch: Opens 48.0 ± 5.4 F (8.9 ± 3.0 C)
Closes 36.0 ± 5.4 F (2.2 ± 3.0 C)
Liquid Injection Switch (LIS): Opens 200 ± 5 F (93 ± 3 C)
Closes 230 ± 5 F (110 ± 3 C)
Low Pressure Cutout: Opens 5 to 11 in. Hg vacuum (-17 to -34 kPa)
Closes 4 to 7 psig (28 to 48 kPa)
Engine Driven Compressor Pressure Regulator (CPR) Valve Setting -
Model 30 and 50 Only 50.0 psig (345 kPa)
Electric Standby Suction Pressure Regulator (SPR) Valve Setting - Model
20 and 50 Only 39.0 psig (269 kPa)
R-404A REFRIGERATION SYSTEM (V-520 Max)
Refrigerant Charge: V-520 MAX - Model 10 8.15 lb (3.70 kg) R-404A
V-520 MAX - Model 20 8.15 lb (3.70 kg) R-404A
V-520 MAX - Model 30 8.25 lb (3.74 kg) R-404A
V-520 MAX - Model 50 8.25 lb (3.74 kg) R-404A
V-520 SPECTRUM - Model 10 9.75 lb (4.42 kg) R-404A
V-520 SPECTRUM - Model 20 9.75 lb (4.42 kg) R-404A
V-520 SPECTRUM - Model 50 9.85 lb (4.47 kg) R-404A
Defrost Termination Switch: Opens 48.0 ± 5.4 F (8.9 ± 3.0 C)
Closes 36.0 ± 5.4 F (2.2 ± 3.0 C)
Liquid Injection Switch (LIS): Opens 200 ± 5 F (93 ± 3 C)
Closes 230 ± 5 F (110 ± 3 C)
Low Pressure Cutout: Opens 5 to 11 in. Hg vacuum(-17 to -34 kPa)
Closes 4 to 7 psig (28 to 48 kPa)
Engine Driven Compressor Pressure Regulator (CPR) Valve Setting -
Model 30 and 50 Only 50.0 psig (345 kPa)
Electric Standby Suction Pressure Regulator (SPR) Valve Setting - Model
20 and 50 Only 39.0 psig (269 kPa)
Suction Bypass CPR Valve Setting - SPECTRUM Only See “Suction Bypass CPR Valve
Setup Procedure” on page 58.