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12.7.3 Internal Heater Control at Tank Mode
Internal heater turn ON condition:
1) Internal Heater select for Tank heater by remote controller
2) Tank Heater select ON by user.
3) Backup 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 Tempe [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.
65°C
Time
Tank Temp.
Tank Water Set Temp.
Backup
Heater
Operation
Heat Pump
Operation