Eliwell EWCM 4150 - Alarm List with Actions and Notes

55
Code Description Type Cause (Set) Activation Hysteresis A 1) C 2) 3)
Er28
Operating hours exceeded
Inverter fan
MAN
Operating hours inv
fan>Fn19
Er29 General alarm MAN General alarm
Er30 Inlet probe error AUT
Operation connection
defect
Er31 Outlet probe error AUT
Operation connection
defect
Er33
RTC communication error
alarm
AUT Clock broken
Er34 Alarm RTC register value AUT Clock not regulated
Er35 Configuration error alarm AUT Configuration incorrect
Er37 Alarms log full signal MAN N° of log events > AL25
Note: 1) If “bypass time” = “not present”, the alarm is immediately active.
2) If “N° responses in sample window” = 0, the alarm is always in manual reset
3) If “N° responses in sample window” = >32 the alarm is always in automatic reset mode
Alarm list with actions and notes
Cod
e
Action Notes
Er01 Blocks all compressors and fans
Er02
Blocks all compressors and fans:
- at maximum power (Fn22) in Cool
- OFF in Heat
AL02 is loaded for digital compressors whenever a power
variation is applied to the system which is not due to the alarm
itself; for the inverter compressor when activated. If suction
probe in error, minimum alarm is always signalled.