Panasonic WH-SDF16C9E8 [48/125] Heat tank mode operation

12.1.4 Heat + Tank Mode Operation

Setting 1: When Heating priority is set by control panel:

1 3 ways valve control:

o 3 ways valve switch and fix to room side.

2 Heatpump operation control:

o Heatpump operate follow normal operation.

3 Backup Heater control:

o Backup heater operate follow normal operation.

4 Booster heater control:

o Booster heater On/Off follow normal operation.

5 Solar 3 way valve:

o Solar 3 way valve operates follow solar operation specification.

* Under solar priority is set condition, when solar 3 way valve is ON, booster heater turn OFF.

Setting 2: When heating priority is not set by control panel:

When Solar Priority is set/not set by control panel:

1 3 ways valve control:

o 3 ways valve switch to room side during heating heat-up interval, and switch to tank side during tank

heat-up interval. Both mode will switch alternatively.

2 Heatpump operation control:

o During heating heat-up interval

- Follow normal heating operation.

Under solar priority set condition:

- Always detect the tank temperature after heating heat-up interval. Switch only to tank heat-up

interval and start counting tank heat-up timer when tank temperature < THERMO ON TEMP AND

solar 3WV OFF

Under solar priority not set condition:

- Always detect the tank temperature after heating heat-up interval. Switch only to tank heat-up

interval and start counting tank heat-up timer when tank temperature < THERMO ON TEMP

* THERMO ON TEMP is defined form following Case1 to Case4.

o During tank heat-up interval

- Heatpump tank target temperature = Tank set temperature or [55°C] whichever lower

- Heatpump Water Outlet set temperature is set to Maximum [55°C] during tank interval