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12.1.7 Heat + Tank Mode Operation
Setting 1: When Heating priority is set by control panel:
1 3 ways valve control:
o 3 ways valve switch to room side during External Room Thermo ON OR Solar 3 ways valve ON OR
Tank Thermo OFF time, and switch to tank side at External Room Thermo OFF AND Solar 3 ways valve
OFF
2 Heat pump operation control:-
o During External Room Thermo ON time: (When room thermo ON, heat pump must operate to room
side)
Heat pump operate follow normal operation at room side
o During External Room Thermo OFF time:
Switch 3 ways valve to tank side, IF
Under Solar Priority Set condition:
o Tank temperature < Tank THERMO ON TEMP AND Solar Valve OFF
Under Solar Priority Not Set condition:
o Tank temperature < Tank THERMO ON TEMP
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