Specifications
43
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)
Compressor Pressure Regulator (CPR) Valve Setting - Model 30 and 50
Only
50.0 psig (345 kPa)
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
Specifications
43
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)
Compressor Pressure Regulator (CPR) Valve Setting - Model 30 and 50
Only
50.0 psig (345 kPa)
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
Summary of Contents for Thermo King V-520 10
Page 2: ......
Page 4: ...2 2...
Page 6: ...Introduction 4 Introduction 4...
Page 14: ...Safety Precautions 14 Safety Precautions 14...
Page 40: ...Unit Operation 40 Unit Operation 40...
Page 48: ...Specifications 48 Specifications 48...
Page 52: ...Maintenance Inspection Schedule 52 Maintenance Inspection Schedule 52...
Page 58: ...Loading and Enroute Inspections 58 Loading and Enroute Inspections 58...
Page 60: ...Serial Number Locations 60 Serial Number Locations 60...
Page 62: ...Warranty 62 Warranty 62...
Page 72: ...72 72...
Page 73: ......