Panasonic WH-MHF09G3E5 Service Manual page 48


Water Inlet Thermo Condition
Heat pump THERMO OFF TEMP:
o
1. Water inlet temperature > 65°C for continuous 60 seconds, heat pump OFF.
Heat pump THERMO ON TEMP:
o
1. Heat pump THERMO ON TEMP = Water inlet temperature < 65°C.

Booster heater control
Booster heater turns ON and OFF follow normal operation.
o
Booster heater turns ON condition:
o
1. During start up time (initialization), Booster heater turns ON after DELAY TIMER.
2. When tank temperature lower than HEATER ON TEMP.
3. 20 minutes from previous heater OFF.
Booster heater turns OFF CONDITION:
o
1. When tank temperature higher than tank set temperature for continuous 15 seconds.

Solar 3-way valve
Solar pump operates follow solar operation specification.
o

2 way valve closes

Other
Indoor backup heater cannot be ON during tank mode only.
o
Tank mode
3 way valve
Tank side
on
off
Heat Pump
on
off
Booster Heater
on
off
ID Water Pump
on
off
Booster Heater
Delay Time
Tank set Temp. = 65°C
Tank Thermo OFF
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