Panasonic WH-SXC09D3E5 Service Manual page 43

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.
• Heat Pump Thermostat characteristic
- Water set temperature = tank set temperature or [55 C] whichever lower.
- Heat Pump Water Outlet set temperature is set to Maximum (53 C) at tank mode
i. Case 1
- THERMO OFF TEMP:
1. THERMO OFF TEMP = Water set temperature + [+2 C].
2. Tank temperature > THERMO OFF TEMP for continuous 3 minutes, heat pump OFF and water pump OFF.
- THERMO ON TEMP:
1. THERMO ON TEMP = Water set temperature + [-3 C].
2. When detect tank temperature < THERMO ON TEMP, water pump ON for 3 minute then heat pump ON.
- Pump ON when Tank temperature is less than Tank temperature when Heat Pump Thermo Off - [-3 C].
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