Pump Circuit Breaker Open - Lennox CLIMATIC 50 User Manual

PUMP(S) CIRCUIT BREAKER(S) OPEN
Description
The thermal magnetic trip circuit breaker protecting the pump k has tripped
Action
Case 1 :
The unit only handles ONE pump
Immediate shut down of pump k.
Immediate shut down of the unit.
Fault signal shown on the display.
The remote fault signal is delayed by 6 minutes
Case 2 : The unit handles TWO pumps.
Immediate shut down of pump k.
nd
Start up of the 2
Fault signal 041 is shown on the display for Pump 1 and 042 for Pump 2
The remote fault signal is delayed by 6 minutes
Reset
The fault is automatically reset as soon as the pump circuit breaker is closed.
If the unit was stopped (case 1), the unit will restart automatically 20 seconds after the fault signal has
disappeared and the climatic 50 has restarted the pump.
Possible causes
Wrong wiring or tightening of the connections.
Wrong setting on the circuit breaker
CLIMATIC 50 user manual – Chillers ranges
Fault Code:
pump (refer to "EVAPORATOR PUMP(S) CONTROL" section for more details)
041, 042
Solving the problem
Control all connections
Set circuit breaker according with compressor
normal running current
CL50-CHILLERS/IOM/1105-E
FAULT CODES
38
38