Trane ADAPTIVE CONTROL UCM-CLD - Page 21

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Fault C5
Low Chilled Water Temperature (Unit Off): IFW - Antifreeze protection
Fault C6
Low Chilled Water Temperature (Unit On): MAR - Antifreeze protection
Fault CA
Contactor - Compressor A: MMR - Welded compressor contactor
Fault Cb
Contactor - Compressor B: MMR - Welded compressor contactor
Fault CC
Contactor - Compressor C: MMR - Welded compressor contactor
Fault Cd
Contactor - Compressor D: MMR - Welded compressor contactor
Fault d7
Over Voltage: MAR - Voltage 10% > nominal
Fault d8
Under Voltage: MAR - Voltage 10% < nominal
Fault Ed
Chilled Water Flow Interlock: MAR - Flow switch open more than 6 seconds
Fault F5
High Pressure Cutout - Compressor A: MMR - High pressure too high
Fault F6
High Pressure Cutout - Compressor B: MMR - High pressure too high
Fault Fd
Emergency Stop Input: MMR - Emergency stop input open
Fault 180
Starter Transition - Compressor A: CMR 1) Transition proof signal not received
2) Proof input shunted
Fault 181
Starter Transition - Compressor B: CMR 1) Transition proof signal not received
2) Proof input shunted
Fault 182
Starter Transition - Compressor C: CMR 1) Transition proof signal not received
2) Proof input shunted
Fault 183
Starter Transition - Compressor D: CMR 1) Transition proof signal not received
2) Proof input shunted
Fault 184
Phase Reversal - Compressor A: CMR - Phase reversed
Fault 185:
Phase reversal - Compressor B CMR - Phase reversed
Fault 186
Phase reversal - Compressor C: CMR - Phase reversed
Fault 187
Phase reversal - Compressor D: CMR - Phase reversed
Fault 190
Low Superheat - Circuit 1: CMR - Superheat < 1°C during more than
1333°C x seconds