9
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 RSRE Gel Seal 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 RSRE Filters:
Tools Required: Phillips head screwdriver, 3/16” ball driver hex head wrench
Step 1.
Remove the diffuser screen by removing the six 10-32x1/2 screws.
Step 2.
Loosen the six 1/4x20 socket cap head screws far enough to rotate the filter clip 90°. The filter will not drop during this
operation. Slowly pull the filter away from the knife-edge seal, taking care not to touch the filter face during this operation. It
is important to pull the filter slowly and evenly away from the seal so that the gel remains in the filter gel track.
Step 3.
Inspect filter for visual damage. If damaged, set aside for replacement or repair.
Step 4.
Inspect the gel seal if reinstalling the removed filter. Determine if the gel has lost its ability to seal. If so, have a certified
professional replace the missing, dried out, and/or severely damaged gel.
Step 5.
Place the filter evenly against the filter plenum housing of the RSRE unit. Install filter clips and screws. The clips
can be rotated and angled into place. Using the clips as a lever, the filter can be seated. It is recommended to work either
clockwise or counter-clockwise around the filter and raise the filter into the gel.
Step 6.
Reinstall screen. Reinstall and hand-tighten diffuser screen screws. Avoid overtightening the screen hardware.
WARNING
DISCONNECT THE UNIT FROM THE ELECTRICAL
POWER SOURCE BEFORE ATTEMPTING
ANY SERVICE.
WARNING
THE RSRE 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.
FILTER PLENUM
(DOWN STREAM)
1/4-20 CAP SCREW
FILTER CLIP
SCREEN HARDWARE:
#10-32x1/2 PHP SCREW
#10 NYLON WASHER
GEL TRACK
PLENUM KNIFE EDGE
FILTER PLENUM
(UP STREAM)
GEL SEAL FILTER
PERFORATED DIFUSSER
SCREEN
SCREEN HARDWARE
FILTER CLIP
1/4-20 CAP SCREW
2-PIECE WELDED
FILTER PLENUM
HOUSING
FAN FILTER UNIT
GEL SEAL FILTER
Figure 7 - RSRE Filter Replacement
FILTER MEDIA
PERFORATED DIFUSSER SCREEN
Figure 7: RSRE Filter Replacement
Innovators in Clean Air Technology | www.envirco.com | Installation, Operation & Maintenance