103
16.5.17 Indoor Freeze-up Protection (H99)
Malfunction Decision Conditions:
During anti-freezing control in cooling operation, when the indoor refrigerant liquid temperature < 0°C.
Malfunction Caused:
1 Faulty
water
pump.
2 Insufficient water flow rate in system.
3 Water leak in system.
4 2 way valve partially closed.
5 Clogged expansion valve or strainer.
6 Refrigerant shortage (refrigerant leakage).
7 Faulty indoor refrigerant liquid temperature sensor.
8 Faulty indoor unit PCB (main).
Summary of Contents for WH-SHF09F3E5
Page 19: ...19 4 2 Outdoor Unit Air inlet rear Air outlet Air inlet side ...
Page 32: ...32 10 1 2 Solar Printed Circuit Board Optional ...
Page 48: ...48 67 C 67 C 60 C 65 C 63 C 67 C 67 C ...
Page 49: ...49 60 C 60 C 65 C 65 C 72 C ...
Page 55: ...55 67 C 67 C 67 C 67 C ...
Page 56: ...56 67 C 67 C 60 C 60 C 55 C 75 C ...