Air Filter And Access; Description; Replacing The Air Filter - Carrier 42BJ ICM Installation Manual

Individual comfort module for variable air flow systems

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Air filters should be changed regularly. How often this is

needed depends on the cleanliness of the working environment

and the rate at which the filter becomes clogged.

If clogged filters are not changed they can increase the

pressure drop, trapped dust particles may be given off and

entrained in the air supply, and the general performance of the

ICM may be degraded as the air flow reduces.

NOTE:

The condensate drain pan is located at the suction end of the

fan, and could therefore overflow if the air filter became

clogged. This is because the partial vacuum inside the unit

could stop the condensate from draining normally.

10.2.1 - Access from the side

To access the filter, open the latch, open the hinged access

door and remove the filter from its housing by releasing the

two clips which hold it in place.

When replacing the filter, make sure that the sealing gasket is

against the internal metal housing.

10.2.2 - Access from above or below

In these situations the filter is installed in a removable plug-in

unit. To replace the filter assembly, disengage the two latches

and withdraw the plug-in unit. Remove the old filter and insert

a new one ensuring that the sealing gasket is against the

internal metal housing.

NOTE:

When installing an ICM in a ceiling void, check that no

T-bars will obstruct access to the filter or prevent the plug-in

unit from being withdrawn.

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