MCS – MicroMag Error / Alarm Manual
Version: 02/21/2020
Table of Contents
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
