Panasonic WH-MHF09G3E5 Service Manual page 51

Heat + Tank Mode (Heating priority set)
Under Solar Priority Set Condition:
Room Thermo
On
Off
3 ways valve
On
Off
Heat Pump
On
Off
Water Pump
On
Off
Backup Heater
On
T1
Off
Booster Heater
On
Off
Solar Request
On
Off
Solar Valve
On
Off
Under Solar Priority Not Set Condition:
Room Thermo
On
Off
3 ways valve
On
Off
Heat Pump
On
Off
Water Pump
On
Off
Backup Heater
On
T1
Off
Booster Heater
On
Off
Solar Request
On
Off
Solar Valve
On
Off
Room
Thermo OFF
Tank Heat Pump
Tank Heat Pump
Thermo Off
Thermo On
T2
Room
Thermo OFF
Tank heat pump
Thermo OFF
T2
Solar Request
ON
T2
Solar Request ON
T1 = Backup heater delay time
T1
T1 = Backup heater delay time
51
Room Thermo On,
switch to room side
Solar Request
OFF
T2 = Booster heater delay time
Tank heat pump
Thermo OFF
T2
Solar Request
OFF
T2 = Booster heater delay time