Panasonic WH-SDC09C3E8, Service Manual

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12.1.5 Cool + Tank Mode Operation
12.1.6 Tank Mode Operation
Control contents:

3 ways valve direction
- 3 ways valve switch and fix to tank side.

Heatpump Thermostat characteristic
- Water set temperature = Tank set temperature or [55°C] whichever lower.
- Heatpump Water Outlet set temperature is set to Maximum (55°C) at tank mode
i. Case 1
- THERMO OFF TEMP:
1 THERMO OFF TEMP = Water set tempe [+2°C] .
2 Tank temperature > THERMO OFF TEMP for continuous 3 minutes, heatpump OFF and water pump OFF.
- THERMO ON TEMP:
1 THERMO ON TEMP = Water set tempe [-3°C] .
2 When detect tank temperature < THERMO ON TEMP, water pump ON for 3 minute then heatpump ON.
- Pump ON when Tank temperature is less than tank temperature when Heatpump Thermo Off - [-3°C] .