Diagnosis: Troubleshooting, Warnings and Alarm Codes
235
23
Capacity Test 2 Error
• Occurs during pretrip (PTI) test only.
• When the supply air temperature does not reach 0
°C (32 F) within preset time.
• Indicates:
• Incorrect location of supply air sensor.
• Air leakage at supply sensor cable.
• Defective supply air sensor.
• Interchanged sensor connections.
• Incorrect evaporator fan rotation or high speed
operation.
• Incorrect refrigeration system operation.
• Container/side panels defective, damaged or
leaking.
• Air exchange vent open too much.
• Low refrigerant charge.
• Cooling circuit defective.
• Enter Manual Function Test and start
evaporator fans on high speed and let operate
fans for 5 minutes. Check supply, return and
evaporator coil (defrost) sensor temperatures.
Sensor readings should be the same (supply
air may be 0.5 °C [1.0 F] higher due to fan
motor heat).
• Open evaporator door and inspect evaporator
fan rotation. Make sure fans are rotating
correctly on low and high speed.
• Check the sensor connections.
• Enter Manual Function Test menu. Start and
check current draw of the following
components separately and together:
compressor, vapor on, condenser fan and
evaporator fans (high). Check discharge and
suction pressure readings. Also check the
refrigerant charge.
26
Vapor Injection Error
• Occurs during pti, brief pti and function tests.
• Power consumption does not increase when
activating economizer valve.
• Current consumption not correct for valve position.
• Enter Manual Function Test and start
compressor and evaporator fans on high
speed, with digital valve off, operate vapor
injection valve and observe current
consumption change. An increase in current
consumption is expected.
• Check vapor valve function.
• Evaluate economizer Tx valve operation.
NOTE: This alarm can be activated in low
ambient temperatures where condenser
temperature may not be high.
Alarm Codes, Descriptions and Corrective Actions (Continued)
Code
Description
Corrective Action
Содержание 098203
Страница 2: ......
Страница 3: ...MAGNUM TK 60275 4 MM Rev 3 08 15 Copyright 2012 Ingersoll Rand EMEIA Printed in Ireland...
Страница 193: ...Refrigeration Maintenance 191 Figure 163 Filter Drier...
Страница 200: ...Refrigeration Maintenance 198 Figure 169 Receiver Tank Figure 170 Water Cooled Condenser Tank...
Страница 257: ...255 Schematic Diagram RELEASED 19 Sep 2013...
Страница 258: ...256 Wiring Diagram Page 1 of 2 RELEASED 19 Sep 2013...
Страница 259: ...257 Wiring Diagram Page 2 of 2 RELEASED 19 Sep 2013...
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