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How to replace filters and reset filter alarm
Introduction
This section describes how to replace filters
and reset the filter alarm.
The example shows an active filter alarm before
the unit has stopped due to extra 1000 hours
operation after filter alarm:
When?
The filters need to be replaced when the filter alarm buzzer starts to sound (acoustic
signal). The filter alarm will be activated after 3000 hours’ use, which corresponds to
approx. 4 months.
Important
Switch off all power supply before working on the unit
Make sure that all work has been performed before switching on the power again
Illustration
This drawing illustrates where to pull out
the filters
Replace filters
Follow these steps to replace the filters:
Step
Action
1
Reset the filter alarm (see instruction next page)
2
Switch off power to the unit
3
Open the front cover by loosening four thumbscrews. Lift off the front cover
completely
4
Remove the old filter by pulling it out
5
Insert the new filter, make sure that it is correctly positioned
6
Close the front cover and switch on power again
Continued overleaf
F7 cassette filter
G4 cassette filter
Summary of Contents for HRV 5
Page 1: ...Focus Trust Initiative HRV 5 Service manual DA GB DE No 039994 rev 2 0 08 03 2011...
Page 2: ...2005 layout...
Page 3: ...HRV 5 Service manual EN DA DE No 039994 rev 2 0 08 03 2011...
Page 54: ...52...
Page 104: ...52...
Page 138: ...36 Fortsetzung auf der n chsten Seite...
Page 148: ...46 Abmessungen Abbildung Die Abbildung zeigt die Abmessungen eines HRV 5...
Page 154: ...52 Firmenstempel Datum und Unterschrift...
Page 157: ...2005 layout...