Contents of section
3
Cooling Circuit ........................................................................................................................................................................................................... 39
3.1
Cooling Diagrams ........................................................................................................................................................................................... 39
Monoblock .................................................................................................................................................................................................. 39
Split ................................................................................................................................................................................................................ 39
3.2
Operations ........................................................................................................................................................................................................ 40
Pump Down Stop ...................................................................................................................................................................................... 40
Recover Refrigerant .................................................................................................................................................................................. 42
Vacuum Operation ................................................................................................................................................................................... 42
Refrigerant Charge ................................................................................................................................................................................... 43
Refrigerant leaks ........................................................................................................................................................................................ 44
Leakage Test ..................................................................................................................................................................................... 44
Leak Search Procedure ................................................................................................................................................................. 45
Basic steps in brazing ............................................................................................................................................................................... 46
3.3
Valves ................................................................................................................................................................................................................. 47
Shut-off Valves ........................................................................................................................................................................................... 47
Opening Valve ................................................................................................................................................................................. 47
Opening Service Port (pos. 2) ..................................................................................................................................................... 47
Valve and Gasket Replacement ................................................................................................................................................. 48
Service ports ............................................................................................................................................................................................... 48
Valve Test .......................................................................................................................................................................................... 50
Valve Replacement ........................................................................................................................................................................ 50
SAE Pressure Switch Replacement ........................................................................................................................................... 51
Solenoid Valves .......................................................................................................................................................................................... 51
Solenoid Coil and Valve Tests ..................................................................................................................................................... 51
Valve Disassemble .......................................................................................................................................................................... 52
YS 3-Way Replacement ................................................................................................................................................................. 52
YK Capacity Control Valve Replacement ................................................................................................................................ 53
Non return Check Valves ........................................................................................................................................................................ 54
Check Valve Test ............................................................................................................................................................................. 54
Check Valve Replacement ........................................................................................................................................................... 55
3.4
Filter Drier and Sight Glass .......................................................................................................................................................................... 55
Filter Drier Replacement ......................................................................................................................................................................... 56
3.5
Orifice and Expansion Valve ....................................................................................................................................................................... 57
Expansion Valve Regulation .................................................................................................................................................................. 57
Orifice Replacement ................................................................................................................................................................................. 58
Expansion Valve Replacement ............................................................................................................................................................. 60
3.6
CPR Crankcase Pressure Regulation Valve ............................................................................................................................................. 62
CPR Regulating Procedure ..................................................................................................................................................................... 62
Summary of Contents for un0 060
Page 1: ...0MAN295 USA WORKSHOPMANUAL un0...
Page 4: ......
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Page 16: ......
Page 17: ...Section1 Generalinformation...
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Page 30: ......
Page 31: ...Section2 Descriptionoftheunit...
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Page 45: ...34 Description of the unit 2 2 Evaporating section...
Page 46: ......
Page 47: ...Section3 CoolingCircuit...
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Page 95: ...Section4 DieselEngine...
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Page 131: ...Section5 ElectronicsandWirings...
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Page 146: ...135 5 2 Electronic Boards Electronics and wiring 5 2 Electronic Boards CPU board...
Page 150: ...139 5 2 Electronic Boards Electronics and wiring Relay Board...
Page 155: ...144 Electronics and wiring 5 2 Electronic Boards Low Voltage Wirings...
Page 156: ...145 5 2 Electronic Boards Electronics and wiring High Voltage Wirings...
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Page 179: ...Section6 Alarms Troubleshooting...
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Page 183: ...172 Alarms Troubleshooting 6 1 StandardAlarms A04 Low Pressure Switch...
Page 184: ...173 6 1 StandardAlarms Alarms Troubleshooting A07 Water Temperature A08 Door Microswitch...
Page 185: ...174 Alarms Troubleshooting 6 1 StandardAlarms A10 Oil Pressure...
Page 186: ...175 6 1 StandardAlarms Alarms Troubleshooting A11 High Pressure...
Page 188: ...177 6 1 StandardAlarms Alarms Troubleshooting A16 Engine Failure...
Page 189: ...178 Alarms Troubleshooting 6 1 StandardAlarms A17 Alternator Failure...
Page 190: ...179 6 1 StandardAlarms Alarms Troubleshooting A18 Water sensor error...
Page 195: ...184 Alarms Troubleshooting 6 3 Troubleshooting Unit does not start after blackout...
Page 196: ...185 6 3 Troubleshooting Alarms Troubleshooting Unit not performing...
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Page 199: ...Annex1 Parameters...
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