100
17.5.15. Outdoor High Pressure Switch Activate (F12)
Malfunction Decision Conditions:
During operation of cooling and heating, when pressure 4.5MPa and above is detected by outdoor high pressure switch.
Malfunction Caused:
1. Dust accumulation on the outdoor unit heat exchanger.
2. Air short circuit at outdoor unit.
3. Faulty water pump.
4. Insufficient water flow rate in system.
5. Water leak in system.
6. 2/3 way valve closed.
7. Clogged expansion valve or strainer.
8. Excessive refrigerant.
9. Faulty outdoor high pressure sensor and switch.
10. Faulty outdoor unit PCB.
Abnormality Judgment:
Continue 4 times in 20 minutes.
Summary of Contents for WH-UD07CE5-A
Page 16: ...16 4 Location of Controls and Components 4 1 Indoor Unit 4 1 1 Location of Control ...
Page 17: ...17 ...
Page 18: ...18 ...
Page 19: ...19 4 1 2 Weekly Timer Setting ...
Page 20: ...20 4 1 3 Setting Up The Special Functions ...
Page 21: ...21 4 1 4 Main Components 4 2 Outdoor Unit ...
Page 22: ...22 5 Dimensions 5 1 Indoor Unit ...
Page 23: ...23 5 2 Outdoor Unit 5 2 1 WH UD07CE5 A WH UD09CE5 A ...
Page 24: ...24 5 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A ...
Page 26: ...26 ...
Page 27: ...27 7 Block Diagram 7 1 WH UD07CE5 A WH UD09CE5 A ...
Page 28: ...28 7 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A ...
Page 29: ...29 8 Wiring Connection Diagram 8 1 Indoor Unit 8 1 1 WH SDF07C3E5 WH SDF09C3E5 ...
Page 30: ...30 8 1 2 WH SDF12C6E5 WH SDF14C6E5 WH SDF16C6E5 ...
Page 31: ...31 8 2 Outdoor Unit 8 2 1 WH UD07CE5 A WH UD09CE5 A ...
Page 32: ...32 8 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A ...
Page 33: ...33 9 Electronic Circuit Diagram 9 1 Indoor Unit 9 1 1 WH SDF07C3E5 WH SDF09C3E5 ...
Page 34: ...34 9 1 2 WH SDF12C6E5 WH SDF14C6E5 WH SDF16C6E5 ...
Page 35: ...35 9 2 Outdoor Unit 9 2 1 WH UD07CE5 A WH UD09CE5 A ...
Page 36: ...36 9 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A ...
Page 37: ...37 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Page 38: ...38 10 1 2 Solar Printed Circuit Board Optional ...
Page 39: ...39 10 2 Outdoor Unit 10 2 1 WH UD07CE5 A WH UD09CE5 A 10 2 1 1 Main Printed Circuit Board ...
Page 40: ...40 10 2 1 2 Capacitor Printed Circuit Board 10 2 1 3 Noise Filter Printed Circuit Board ...
Page 41: ...41 10 2 2 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A 10 2 2 1 Main Printed Circuit Board ...
Page 42: ...42 10 2 2 2 Capacitor Printed Circuit Board 10 2 2 3 Noise Filter Printed Circuit Board ...
Page 73: ...73 ...
Page 74: ...74 ...
Page 120: ...120 18 3 To Remove Pressure Gauge 18 4 To Remove Control Panel ...
Page 121: ...121 18 5 To Remove RCCB 18 6 To Remove Transformer and Electronic Controller Board ...
Page 138: ...138 20 2 WH UD07CE5 A WH UD09CE5 A ...
Page 139: ...139 ...
Page 142: ...142 20 3 WH UD12CE5 A WH UD14CE5 A WH UD16CE5 A ...
Page 143: ...143 ...