RSR ECM
Fan/Filter Unit
Installation and Operation Manual
Doc. 1788-25
©
Copyright 2018 Terra Universal Inc.
All rights reserved
Revised November 2019
Terra Universal, Inc. • TerraUniversal.com • 800 S. Raymond Ave. • Fullerton, CA 92831 • TEL: (714) 578-6000 • FAX: (714) 578-6020
2
Replacing the Filters
The Room-Side Replaceable FFU is designed so that the HEPA or ULPA filter can be
replaced from inside the cleanroom without breaching the controlled environment. The
filter assembly is separate from the fan module, which stays in place in the ceiling grid.
Follow these instructions to replace the filter.
A)
First, you must remove the stainless steel screen covering the filter that is held in
place with friction catches (Photo 1). This screen protects the filter from damage
and enhances airflow uniformity.
Photo 1
: Friction catches hold the screen to the fan module housing.
B)
Next, rotate the metal tabs that help hold the HEPA filter in place (see Photo 3).
Photo 3
: Filter-face grille’s metal tabs.
C)
Gently let the used filter drop down, and set aside. The filter assembly is
surrounded by a channel containing gel seal. Wipe any residual gel from the
knife-edge of the fan module still in the ceiling to prepare for the replacement
filter. Position your new filter carefully before pushing into place; the knife-edge of
the fan module should be centered in the channel (equal amounts of gel on both
sides). Photo 4 shows the gel-filled channel of the RSR filter.
Photo 4
: Gel-filled channel of RSR filter.
D)
Rotate the metal tabs so that they lock in the new HEPA filter.
E)
Reinstall the stainless steel screen by pushing up on the friction catches until the
screen clicks into place.
F)
To replace the pre-filter located at the top of the fan module, slide the old filter out
of the two tracks holding it in place on top of the FFU and then slide in the new
pre-filter.
