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12.3. Pump Down Operation
Purpose
Ensure the pump down operation when relocating or disposing of the unit. The pump down operation will extract all
refrigerant from the piping into the outdoor unit.
1. Make sure the OFF/ON control panel LED is OFF (no operation).
2. Press the Pump Down button to start the pump down operation.
3. No low pressure protection error during pump down operation.
4. Press OFF/ON button to stop the pump down operation.
12.4. Flow Switch
12.4.1.
Flow Switch Control
1. The water flow switch serve as an overload protector that shuts down the unit when the water level is detected to be low.
2. Detection is Lo (0V) when there is no water flow, and detection is Hi (5V) when there is water flow.
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 ...