Titus FFDE, Руководство по установке и эксплуатации

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Service: Removal and Replacement of FFDER & FFDERA Filters
WARNING
DISCONNECT THE UNIT FROM THE ELECTRICAL POWER
SOURCE BEFORE ATTEMPTING ANY SERVICE
WARNING
THE STANDARD FILTER IS PROTECTED WITH AN
EXTENDED METAL FACE SCEEN. 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
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 FFDER & FFDERA FILTERS:
Tools Required: Phillips Head Driver, Battery Operated Drill, 3/16” hex
head ball driver (2ea)
Step 1. With the power off, remove the diffuser screen by removing the 6
each 10-32x1/2 screws, then carefully place in a safe location.
Step 2.
Loosen the six 1/4x12 socket head screws far enough to rotate
the eight filter clips 90°. The filter may be loose enough to drop during
this operation. If not, 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 away from the seal, so that the gel remains in the
filter gel track.
Step 3. Carefully clean plenum assembly knife edge surface of residual
gel material.
Step 4. Inspect filter for visible damage, if damaged set aside for
replacement or repair.
Step 5. Inspect the gel seal, if reinstalling the removed filter. Determine
if the gel has lost its ability to seal (i.e. the gel should reform to cover the
track without voids or openings), if so repair the gel material or consider
replacement of filter.
Step 6. Place the filter evenly against the filter-sealing surface of the unit.
Reposition filter clips and screws. The clips should be rotated and angled
into place. It is recommended that four workers work on each corner of the
filter simultaneously, holding the filter seated into the track. Hand tighten
clips from opposite corners evenly until all clamps are tightened.
Step 7.
Reinstall diffuser screen by hand-tightening the screws.
Step 8. Determine if recertification or testing of replacement is required.
Step 9. Restore power to FFU and verify proper operation of FFU.
FFDR & FFDRA Filter Change
Fan Filter Unit
Filter
2-Piece Welded
Plenum Housing
Filter Clip and
Screw (typ 6)
Diffuser Screen
Screws (typ 6)
FFDR & FFDRA Filter Replacement
Filter
Filter Clip
Gel Track
Knife- Edge
Seal
Diffuser
Screen
10-32
PHP
Screws
¼ -20
Cap
Screw