Panasonic WH-SDC03H3E5 Service Manual page 104

12.7.3 Room Heater Control at Tank Mode

Room heater turn ON condition:
1) Internal Heater select for Tank heater by remote controller
2) Tank Heater select ON by user.
3) Room Heater Enable
4) Tank Temperature < Tank Set Temperature
5) Heat Pump Thermo OFF
6) 20 minutes from previous heater off.

Room heater turn OFF condition:
1) Tank Temperature > Tank Set Temperature + [0°C] for continuous 15 seconds. OR
2) Heat Pump Thermo ON OR
3) Mode Change or Operation OFF by remote controller OR
* Backup Heater Turn ON/OFF all together according to the selected heater capacity.
Tank Temp.
Tank Water Set Temp.
65°C
Heat Pump
Operation
104
Backup
Heater
Operation
Time