Panasonic WH-SDF09C3E5 Service Manual page 66

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