MCS – MicroMag Error / Alarm Manual
General Troubleshooting .........................................................................1
Microprocessor Features.........................................................................2
Display Features.......................................................................................3
Unit States.................................................................................................4
PowerUpDelay.........................................................................................4
OFF SCHEDULE .....................................................................................4
OFF RUN/STOP ......................................................................................5
COOLING ................................................................................................5
MACH LOCKOUT....................................................................................6
PUMP ONLY............................................................................................6
Alarms .......................................................................................................7
Supply Freeze..........................................................................................7
Low Suction Superheat............................................................................8
High Discharge Pressure.........................................................................9
Low Discharge Pressure........................................................................10
Low / Unsafe Suction Pressure..............................................................11
No Flow..................................................................................................12
Phase Loss............................................................................................13
No Battery..............................................................................................14
Sensor Fault...........................................................................................15
Appendices .............................................................................................16
Appendix A: Cooling States....................................................................16
Appendix B: Diagnosing Sensor Errors..................................................17
Appendix C: Phase Monitor Faults.........................................................21
Appendix D: Enter Password and Enable Run / Stop.............................23
Appendix E: Change Date / Time...........................................................25
Troubleshooting Notes...........................................................................27
