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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 and 3-way valve will be shift to heating side.
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 (0 V) when there is no water flow, and detection is Hi (5 V) when there is water flow.
12.5 Force Heater Mode Operation
The backup heater also serves as backup in case of malfunctioning of the outdoor unit.
1 Make sure the OFF/ON control panel LED is OFF (no operation).
2 Press the Force button to start the force heater mode operation.
3 During force heater mode, all other operations are not allowed.
4 Press OFF/ON button to stop the force heater mode operation.
Содержание WH-SDC03E3E5 Series
Страница 12: ...12 4 Location of Controls and Components 4 1 Indoor Unit 4 1 1 Location of Control ...
Страница 13: ...13 ...
Страница 14: ...14 ...
Страница 15: ...15 4 1 2 Weekly Timer Setting ...
Страница 16: ...16 4 1 3 Setting Up the Special Functions ...
Страница 17: ...17 4 1 4 Main Components 4 2 Outdoor Unit ...
Страница 18: ...18 5 Dimensions 5 1 Indoor Unit ...
Страница 19: ...19 5 2 Outdoor Unit ...
Страница 21: ...21 ...
Страница 22: ...22 7 Block Diagram ...
Страница 23: ...23 8 Wiring Connection Diagram 8 1 Indoor Unit ...
Страница 24: ...24 8 2 Outdoor Unit ...
Страница 25: ...25 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Страница 26: ...26 9 2 Outdoor Unit ...
Страница 27: ...27 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Страница 28: ...28 10 1 2 Solar Printed Circuit Board Optional ...
Страница 29: ...29 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board ...
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Страница 110: ...110 17 3 To Remove Pressure Gauge 17 4 To Remove Control Panel ...
Страница 111: ...111 17 5 To Remove RCCB 17 6 To Remove Transformer and Electronic Controller Board ...
Страница 123: ...123 18 4 Hydraulic Pump Performance ...