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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 mono bloc unit.
Pump down operation control:
1 Press the SERVICE S/W for continuous 5 secs to enter Service mode.
2 In service mode, select Sr:01 and press SET S/W to start Pump Down operation.
3 There will be no Low Pressure error & Freeze prevention judgement during pumpdown operation.
4 3 ways valve will shift to room side.
5 Press the ON/OFF button to stop the unit.
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.
12.5 Force Heater Mode Operation
The backup heater also serves as backup in case of malfunctioning of the mono bloc unit.
1 Make sure the OFF/ON remote control 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-MDF12C6E5
Страница 12: ...12 4 Location of Controls and Components 4 1 Mono bloc Unit ...
Страница 13: ...13 4 1 1 Main Components ...
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Страница 17: ...17 4 1 3 Weekly Timer Setting ...
Страница 18: ...18 4 1 4 Setting Up The Special Functions ...
Страница 19: ...19 5 Dimensions 5 1 Mono bloc Unit ...
Страница 20: ...20 6 Refrigeration and Water Cycle Diagram ...
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Страница 22: ...22 7 Block Diagram ...
Страница 23: ...23 8 Wiring Connection Diagram ...
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Страница 25: ...25 9 Electronic Circuit Diagram ...
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Страница 27: ...27 10 Printed Circuit Board 10 1 Water System 10 1 1 Main Printed Circuit Board ...
Страница 28: ...28 10 1 2 Solar Printed Circuit Board Optional ...
Страница 29: ...29 10 2 Refrigerant System 10 2 1 Main Printed Circuit Board ...
Страница 30: ...30 10 2 2 Capacitor Printed Circuit Board 10 2 3 Noise Filter Printed Circuit Board ...
Страница 31: ...31 11 Installation Instruction Mono Bloc Unit Dimension Diagram ...
Страница 32: ...32 Main Components ...
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Страница 107: ...107 17 3 To Remove The Cabinet Rear Plate 17 4 To Remove Pressure Gauge 17 5 To Remove RCCB ...
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Страница 119: ...119 19 2 WH MDF12C6E5 WH MDF14C6E5 WH MDF16C6E5 WH MDF12C6E5 1 WH MDF14C6E5 1 WH MDF16C6E5 1 Water System ...