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I n s t a l l a t i o n , O p e r a t i o n , & M a i n t e n a n c e M a n u a l
MAC 10
®
LEAC2
Fan Filter Unit
■
Service: Removal and Replacement of Standard HEPA/ULPA Filters
Note:
All filters should be visually inspected for freight damage before installation. It is necessary to use two workers when
removing the filter and for installation to avoid twisting or separation of the media seals. Handle the filter only by the frame
and never place anything on the upstream filter side of the filter. Additionally, it is important to keep the filter level to prevent
any shearing force on the media itself.
For Standard Filters:
Tools Required: Phillips head screwdriver, rivet hand tool, Ø5/32 aluminum rivet grip range .126-.187
Step 1.
Remove unit from ceiling.
Step 2.
Remove the eight screws holding the HEPA/ULPA filter to the lid assembly.
Step 3.
Lift the lid assembly off the HEPA/ULPA filter. (See Figure 6.) Discard the used filter as per requirements of the
applicable regulations.
Note:
Before replacing with a new HEPA/ULPA filter, carefully inspect the new filter for any visual damage. Also, inspect the
gasket in the “tee” bar to ensure a tight seal. Replace as necessary.
Step 4.
Install rivets in ends to plug unused holes.
Step 5.
Replace with the new HEPA/ULPA filter and complete by reversing the above steps.
WARNING
DISCONNECT THE UNIT FROM THE ELECTRICAL
POWER SOURCE BEFORE ATTEMPTING
ANY SERVICE.
WARNING
THE STANDARD FILTER IS PROTECTED WITH AN
EXPANDED METAL FACE SCREEN. THIS IS
NEVER TO BE USED TO HANDLE THE FILTER.
IT IS ONLY FOR PROTECTION AGAINST AN
ACCIDENTAL TOUCH OF THE FILTER.
ONLY HANDLE THE FILTER BY THE FRAME.
Ø5/32 RIVET (6X)
(NONE ON 2X2)
#8x3/8 FLAT HEAD PHILLIPS SHEET METAL SCREW
2X4 & 2X3.5 = 10X; 2X3 & 2X2 = 8X
LID ASSEMBLY
STD FILTER
Figure 6 - Standard Filter Replacement
Figure 6: Standard Filter Replacement
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