126
17.5.17
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-SDC12F6E5
Page 24: ...24 4 2 Outdoor Unit Air inlet rear Air outlet Air inlet side ...
Page 35: ...35 10 1 2 Solar Printed Circuit Board Optional ...
Page 63: ...63 57 C 57 C 57 C 57 C ...
Page 64: ...64 ...
Page 70: ...70 ...
Page 71: ...71 ...
Page 72: ...72 57 C 57 C 50 C 50 C ...