Advertisement
2.19 P5: Outdoor heat exchanger temperature protection (For all models)
2.19.1 Digital display output
P5
2.19.2 Description
Outdoor heat exchanger temperature protection.
•
•
The system stops running.
•
Error code is displayed on the unit with the error.
2.19.3 Trigger / recover condition
•
Trigger condition: Outdoor heat exchanger temperature (T3) ≥ 62
•
Recover condition: Outdoor heat exchanger temperature (T3) < 52
•
Reset method: Resume automatically.
2.19.4 Possible causes
•
Temperature sensor not connected properly or has malfunctioned.
•
Indoor load too large.
•
System contains air or nitrogen.
•
Poor condenser heat exchange.
•
High pressure side blockage.
•
Main PCB damaged.
o
C.
o
C.
75
Advertisement
