High Pressure Too High - Lennox CLIMATIC 50 User Manual

HIGH PRESSURE TOO HIGH

Description
High pressure switch from circuit n has tripped.
Action
Immediate shut down of circuit n.
Fault signal shown on the display.
The remote fault signal is delayed by 6 minutes
Reset
The first 3 faults are automatically reset
After three faults the circuit n can only be restarted by a manual reset
Notes:
Fault counter is cleared and reset every day at 10 am, as long as the maximum number of faults has not
been reached.
Possible causes
Dirty condenser.
Wrong setting on the condenser control.
Wrong operation of the liquid line solenoid valve
Fan out of order
Wrong wiring or wrong setting of the high
pressure, pressure switch.
Dirty Filter Drier
CLIMATIC 50 user manual – Chillers ranges
1n5
Fault Code:
Clean the condenser.
Check the settings of the controller.
Check the operation of the solenoid valve.
Change the fan
Check the wiring and the setting of the HP
switch.
Change the filter drier.
Solving the problem
CL50-CHILLERS/IOM/1105-E
FAULT CODES
35
35