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Refrigeration Cycle

1. Compressor

2. Discharge Service Valve

3. Discharge Vibrasorber

4. Discharge Line

5. Three-way Valve

6. Three-way Valve Bypass

Check Valve

7. Condenser Coil

8. Condenser Check Valve

9. High Pressure Relief Valve

10. Receiver Tank

11. Sight Glass

12. Receiver Outlet Valve

13. Liquid Line

14. Drier

15. Heat Exchanger

16. Expansion Valve

17. Feeler Bulb

18. Equalizer Line

19. Distributor

20. Evaporator Coil

21. Suction Line

22. Accumulator

23. Suction Vibrasorber

24. Suction Service Valve

25. Throttling Valve

26. Pilot Solenoid

27. Hot Gas Line

28. Defrost Pan Heater

29. Bypass Check Valve

30. Bypass Service Valve

Table of Contents5
Specifications11
Maintenance Inspection Schedule15
Unit Description19
Sequence of Operation21
Operating Modes21
Design Features23
Protection Devices24
Serial Number Locations25
Operating Instructions31
Control Panel31
Unit Indicators35
Unit Protection Devices35
Unit Operation36
Manual Pretrip Inspection (before Starting Unit)36
Starting Unit with Electronic Full Pretrip36
Selection of Operating Modes37
Restarting Unit-Diesel Operation38
After Start Inspection38
Loading Procedure39
Post Trip Checks39
Electrical Maintenance41
Australian Bosch Alternator41
Battery (Dealer Supplied)45
Unit Wiring45
Fuses45
Fuse Link45
Glow Plugs46
Thermoguard Μp-VI Microprocessor Controller46
Engine Maintenance47
Engine Lubrication System47
Engine Oil Change48
Oil Filter Change48
Engine Cooling System48
Antifreeze Maintenance Procedure48
Bleeding Air from the Cooling System48
Engine Thermostat51
Engine Fuel System51
Bleeding the Fuel System53
Draining Water from Fuel Tank54
Fuel Filter/Water Separator54
Fuel Filter/Water Separator Replacement54
Engine Speed Adjustments54
Injection Pump Service56
Adjusting Engine Valve Clearance59
Positive Crankcase Ventilation61
Engine Air Cleaner (Filter)62
Belts63
Model 30 Belt Adjustments63
Model 30 Fan Belt Replacement63
Refrigeration Maintenance67
Refrigerant Charge67
Refrigerant Leaks69
Checking Compressor Oil69
High Pressure Cutout Switch (HPCO)70
Three-Way Valve Condenser Pressure Bypass Check Valve70
Electronic Throttling Valve (Optional)72
Pressure Transducers (Optional)72
Hot Gas Solenoid (Optional)73
Refrigeration Service Operations75
Compressor75
Compressor Coupling Removal (Model 30)76
Compressor Coupling Installation (Model 30)77
Condenser Coil78
Discharge Vibrasorber79
In-Line Condenser Check Valve79
Condenser Check Valve Replacement79
Bypass Check Valve80
Receiver Tank80
Filter Drier80
Expansion Valve Assembly81
Heat Exchanger81
Evaporator Coil82
Accumulator83
Refrigeration Service Operations (Continued)83
Three-Way Valve Repair83
Three-Way Valve Condenser Pressure Bypass Check Valve Repair83
Pilot Solenoid87
Suction Vibrasorber87
High Pressure Cutout Switch87
High Pressure Relief Valve87
Discharge Pressure Transducer (Optional)88
Suction Pressure Transducer (Optional)88
Electronic Throttling Valve (Optional)88
Compressor Oil Filter Change90
Hot Gas Solenoid Valve (Optional)91
Structural Maintenance93
Unit and Engine Mounting Bolts93
Unit Inspection93
Condenser, Evaporator, and Radiator Coils93
Defrost Drains93
Unit Installation93
Defrost Damper94
Condenser and Evaporator Fan Location95
Fan Shaft Assembly Overhaul96
Idler Assembly98
Idler Assembly Overhaul98
Mechanical Diagnosis101
Refrigeration Diagnosis105
Defrost and Heating Cycle107
Refrigeration Cycle108
Cool Cycle with Electronic Throttling Valve (Optional)109
Heat/Defrost Cycle with Electronic Throttling Valve (Optional)110
Index111
Wiring Diagrams and Schematics113

Brand	Thermo King
Model	SB-190 30
Category	Refrigerator
Language	English

Thermo King SB-190 30 User Manual

Table of Contents

Questions and Answers:

Thermo King SB-190 30 Specifications

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