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Midea ATOM MDV-V56WDHN1(AtB) - Page 75

Midea ATOM MDV-V56WDHN1(AtB)
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Atom B Series VRF 50/60Hz
74
Midea
Atom B
Series
Service Manual
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
o
C.
Recover condition: Outdoor heat exchanger temperature (T3) < 52
o
C.
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.

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