Quarterly Maintenance - FläktGroup MULTIMAXX HG Operation Manual

Maintenance
9.2

Quarterly maintenance

9.2.1 Replacing filter
Fig. 9-1: Filter replacement in the roof hood ZH#.35##
1
Fig. 9-2: Replacing the bag filter insert in the ZH#.36## bag filter
62
If an air-handling unit is fitted with a filter module, the filter insert must be checked for
clean condition. If there is a maximum pressure drop as defined by the project, the filter
insert must be replaced.
If the air-handling unit is fitted with a filter module and differential pressure switch, the
project-defined value must be set. The differential pressure switch is not adjusted by
the manufacturer. If the pressure loss reaches the set value, filter monitoring is acti-
vated at the OSHG 0.000M
(OSHG 0.EC0M). The filter insert should be exchanged.
To order the spare filter, please use the type code on page 3.
2
Pos. 1: Roof hood intake side
Pos. 2: Bag filter G2, G4 or F7
Remove the lateral screws (screws with a plastic
cap) and open the upper part of the roof hood.
2
Remove the filter insert and replace it. Close the
roof hood and tighten the screws.
1
Pos. 1: Roof hood intake side
Pos. 2: Bag filter G2, G4 or F7
Unlock the side panel of the filter section (1) by
slightly turning quick-action clamps by 90°,
open the panel and remove and replace the fil-
ter insert (2). After inserting the bag filter insert,
close the side part of the filter chamber and
secure it by turning the quick-release lock by
90°.
FläktGroup DC-2011-0141-GB 2021-01/R7 • Subject to modifications
MultiMAXX HG