67
3.7 KVC Hot Gas Bypass
Capacity Regulator
Cooling Circuit
(d)
Setup −20°C (−4°F ) compartment
temperature to −25°C (−13°F ),
keeping only one evaporator
operating, in this way all of other
evaporators are isolated by
solenoid valves.
(e)
Remove KVC cap unscrewing by
hands.
(f)
Regulate maximum suction
pressure between 1barg
(14.5psig) and 1, 2barg (17.5psig)
by turning KVC setting screw; 1
turn clockwise to increase
pressure value of 0.45bar (6.5psi)
or in the opposite direction to
decrease it of same quantity.
CAUTION
!
Adjust the KVC valve
carefully. Avoid anomalous refrigerant
injections on the compressor.
KVC Valve Replacement
(a)
Open unit top and left side covers.
(b)
Recover refrigerant following
(c)
Remove valves from HPG and LP service ports.
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Страница 1: ...0MAN295 USA WORKSHOPMANUAL un0...
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Страница 17: ...Section1 Generalinformation...
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Страница 31: ...Section2 Descriptionoftheunit...
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Страница 37: ...26 Description of the unit 2 1 Condensing unit Under Mount Discharge line Suction line Heat defrost line...
Страница 45: ...34 Description of the unit 2 2 Evaporating section...
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Страница 47: ...Section3 CoolingCircuit...
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Страница 95: ...Section4 DieselEngine...
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Страница 98: ...87 4 1 Belts Diesel Engine 4 Diesel Engine 4 1 Belts Individual Protection Devices Googles Gloves Proper tools...
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Страница 131: ...Section5 ElectronicsandWirings...
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Страница 146: ...135 5 2 Electronic Boards Electronics and wiring 5 2 Electronic Boards CPU board...
Страница 150: ...139 5 2 Electronic Boards Electronics and wiring Relay Board...
Страница 155: ...144 Electronics and wiring 5 2 Electronic Boards Low Voltage Wirings...
Страница 156: ...145 5 2 Electronic Boards Electronics and wiring High Voltage Wirings...
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Страница 179: ...Section6 Alarms Troubleshooting...
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Страница 183: ...172 Alarms Troubleshooting 6 1 StandardAlarms A04 Low Pressure Switch...
Страница 184: ...173 6 1 StandardAlarms Alarms Troubleshooting A07 Water Temperature A08 Door Microswitch...
Страница 185: ...174 Alarms Troubleshooting 6 1 StandardAlarms A10 Oil Pressure...
Страница 186: ...175 6 1 StandardAlarms Alarms Troubleshooting A11 High Pressure...
Страница 187: ...176 Alarms Troubleshooting 6 1 StandardAlarms A14 Net compressor high temperature A15 Low Battery...
Страница 188: ...177 6 1 StandardAlarms Alarms Troubleshooting A16 Engine Failure...
Страница 189: ...178 Alarms Troubleshooting 6 1 StandardAlarms A17 Alternator Failure...
Страница 190: ...179 6 1 StandardAlarms Alarms Troubleshooting A18 Water sensor error...
Страница 193: ...182 Alarms Troubleshooting 6 3 Troubleshooting 6 3 Troubleshooting Condenser fan is not running...
Страница 194: ...183 6 3 Troubleshooting Alarms Troubleshooting Evaporator fan is not running F20 Fuse blows often...
Страница 195: ...184 Alarms Troubleshooting 6 3 Troubleshooting Unit does not start after blackout...
Страница 196: ...185 6 3 Troubleshooting Alarms Troubleshooting Unit not performing...
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Страница 199: ...Annex1 Parameters...
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