When it is time to clean, an alarm indication occurs is displayed. Factory setting
for alarm indication is every three months.
1.
Set the switch to .
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 efficiency
of the filter. Therefore, replace it after 2 years. New filters can be ordered via
the installer.
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Check pressure
F470 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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NIBE™ F470Chapter 2 | The heat pump – the heart of the house20
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