Panasonic ADC0916H9E8 Manuel D'installation page 452

Auto
24. Outdoor temp. for (Heat to Cool)
Set outdoor temp that switches from heating to cooling by Auto setting.
Setting range is 5°C ~ 25°C
Timing of judgement is every 1 hour
25. Outdoor temp. for (Cool to Heat)
Set outdoor temp that switches from Cooling to Heating by Auto setting.
Setting range is 5°C ~ 25°C
Timing of judgement is every 1 hour
Tank
26. Floor operation time (max)
Set max operating hours of heating.
When max operation time is shortened, it can boil the tank more frequently.
It is a function for Heating + Tank operation.
27. Tank heat up time (max)
Set max boiling hours of tank.
When max boiling hours are shortened, it immediately returns to Heating
operation, but it may not fully boil the tank.
28. Tank re-heat temp.
Set temp to perform reboil of tank water.
(When boiled by heat pump only, (51°C – Tank re-heat temp) shall become
max temp.)
Setting range is -12°C ~ -2°C
29. Sterilization
Set timer to perform sterilization.
1 Set operating day & time. (Weekly timer format)
2 Sterilization temp (55~75°C  If use back-up heater, it is 65°C)
3 Operation time (Time to run sterilization when it reached setting temp
5min ~ 60min)
User shall set whether to use or not to use sterilization mode.
28
Initial setting: 15°C
Initial setting: 10°C
Initial setting: 8h
Initial setting: 60min
Initial setting: -8°C
Initial setting: 65°C 10min
Heat
Outdoor temp. rising
Cool
15°C
Heat
Outdoor temp. dropping
Cool
10°C
Heat
30min ~ 10h
Heat
5min ~ 4h
-12°C ~ -2°C
②
① ③
Tank
Tank