7.3. Replacing the filter cartridges
Replacing the filter cartridges becomes necessary when the filter cartridges are saturated with dirt in a
manner that despite of the cleaning the filter alarm is triggered again at very short intervals or
permanently. (The filter alarm is described in chapter “Cleaning the filter cartridges”.)
CAUTION
Whirling up dust is possible due to the polluted filter cartridges.
The filter cartridges must be cleaned before being replaced. This is done by carrying out 3
manual cleanings via the unit control (see separate operating instructions). The filter unit
must be switched off beforehand but without disconnecting the unit from the power supply.
After the cleaning, disconnect the filter unit from the power supply and secure it against
being switched on again. After cleaning the filter cartridges wait about 5 minutes before
opening the service door of the filter housing.
We recommend to pretreat new filter cartridges with filter aid (e.g. precoat) before the first
commissioning. Refer to the chapter "Precoating new filter cartridges".
●
The changing of the filter cartridges must be carried out by two people.
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Before changing the filter cartridges hold ready an appropriate container (e.g. PE bag) for
disposal.
The polluted filter cartridges must be packed into an appropriate container
(e.g. PE bag). PE bags are optionally available (see list of spare parts)! We recommend
having disposal bags in stock.
●
Open the service door of the filter cartridges.
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