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7. Frost protection Setting
• This function performs operation with the minimum capacity (target water temperature:15°C) to prevent pipes
from freezing in case the unit is not used for a long period due to absence.
• Cancel schedule timer to start Frost protection operation. When Frost protection is operated with schedule timer
on, it may stop during its operation.
• The minimum capacity can be changed, ask the installation company to make the required changes to the
settings.
• This function takes precedence over the Night setback operation that is set separately.
• Start the heating operation before making the setting.
It may not be able to go to the setting screen immediately after start. In that case, select “Frost protection” again
after tens of seconds.
1 Press the [ ] / [ ] button to select “Frost protection” on the
MENU screen, then press the [ ] button.
2 Press the [ ] button to select “ON” on the Frost protection
screen, then press the [ ] button.
3 The temperature indication change to “F” and mark appears on
the top screen.
• When the set period has passed, the Frost protection operation ends
automatically.
MENU(2/2)
Frost protection
Setting
Information
SET
Anti bacteria
Power consumption
ZONE1
HOT WATER
HEAT/COOL HOT WATER
MON