53
16.5.10. Outdoor High Pressure Switch Activate (F12)
Malfunction Decision Conditions:
During operation of heating, when pressure 4.5 MPa and above is detected by outdoor high pressure switch.
Malfunction Caused:
1. Faulty water pump.
2. Insufficient water flow rate in system.
3. Water leak in system.
4. Clogged expansion valve or strainer.
5. Excessive refrigerant.
6. Faulty outdoor high pressure sensor and switch.
7. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue 4 times in 20 minutes.
Summary of Contents for WHSD24BE51
Page 10: ...10 4 Location of Controls and Components 4 1 Indoor Unit 4 1 1 Location of Control ...
Page 11: ...11 ...
Page 12: ...12 4 1 2 Main Components 4 2 Outdoor Unit ...
Page 13: ...13 5 Dimensions 5 1 Indoor Unit ...
Page 14: ...14 5 2 Outdoor Unit ...
Page 16: ...16 7 Block Diagram ...
Page 17: ...17 8 Wiring Connection Diagram 8 1 Indoor Unit ...
Page 18: ...18 8 2 Outdoor Unit ...
Page 19: ...19 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Page 20: ...20 9 2 Outdoor Unit ...
Page 21: ...21 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Page 22: ...22 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board ...
Page 23: ...23 10 2 2 Capacitor Printed Circuit Board 10 2 3 Noise Filter Printed Circuit Board ...
Page 71: ...71 17 3 To Remove Pressure Gauge 17 4 To Remove Control Panel ...
Page 72: ...72 17 5 To Remove Electronic Controller Board and Transformer 17 6 To Remove RCCB ...
Page 74: ...74 When reinstall the water pipe use grease or water at the joining ...
Page 79: ...79 18 3 Hydraulic Pump Performance ...
Page 82: ...82 19 2 WH UD24BE5 1 WH UD30BE5 1 ...
Page 83: ...83 ...