2.23 P5: Outdoor heat exchanger temperature protection
2.23.1
Digital display output
2.23.2
Description
Outdoor heat exchanger temperature protection.
All units stop running.
Error code is only displayed on the unit with the error.
2.23.3
Trigger / recover condition
Trigger condition: Outdoor heat exchanger temperature (T3) ≥ 65
Recover condition: Outdoor heat exchanger temperature (T3) < 55
Reset method: Resume automatically.
2.23.4
Possible causes
Outdoor unit stop valves are closed.
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.
V6 VRF 50Hz
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