Lennox CLIMATIC II User Manual

V2.2
-00
41
INTERNAL PROTECTION TRIPPED
Logical variable : DPINTmn
Incident codes KP02 : mn7
KP07 icon :
Description
F Semi-hermetic compressors (reciprocating and screw type) and scroll compressors:
The thermal protection on the motor windings on mn PINTmn is tripped.
F Hermetic reciprocating compressors:
Compressor mn has been operating for 6 minutes and the discharge temperature REFmn is less than θ.
This shows that the internal protection on the compressor has been tripped.
Action
F Immediate halt of compressor mn.
F The fault is displayed on the screen.
F The remote fault report is delayed for 6 minutes.
Note : switched off, the fault is not memorised.
Resetting
Compressor mn can only be restarted after re-closing the internal protection ans a manual reset.
Trouble-shooting Solution
Fault on supply to internal protective relay.
Discharge sensor badly wired or defective (possible
with hermetic reciprocating compressors).
Superheat setting too high.
Check supply to relay.
Check sensor connection and replace if necessary.
Check superheat setting.
θ (°C)
R22 & R407C 40
R134a & R404A 30

Lennox CLIMATIC II Specifications

General

Brand	Lennox
Model	CLIMATIC II
Category	Control Unit
Language	English