Cleaning the air filter
Clean the F750's air filter regularly, how often depends on the amount of
dust in the ventilation air. Select what is most suitable for your heat pump.
You will receive a reminder about filter cleaning in the display. The default
setting for the reminder is every three months, however, if the power to
F750 is interrupted the countdown begins again.
1.
Switch off the heat pump.
2.
Remove the upper front cover by pulling straight out.
3.
Pull out the filter cassette.
4.
Take out the filter and shake/vacuum off any dirt. Do not use water
or other liquids for cleaning.
5.
Check that the filter is not damaged.
6.
Carry out assembly in reverse order.
Even if the filter appears clean, dirt collects in it and this affects the effi-
ciency of the filter. Therefore, replace it after 2 years. New filters can be
ordered via the installer.
Check pressure
F750 has a pressure gauge which shows the heating system pressure. The
pressure should be between 0.5 and 1.5 bar, but varies during temperature
changes. If the pressure drops to 0 or rises to 2.5 frequently, contact your
installer for troubleshooting.
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