Envirco MAC-T Ceiling Grid System - Manual (Page 7)

MAC-T Ceiling Grid System
2” Heavy Duty for Cleanroom
7 Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance
I n s t a l l a t i o n & S e r v i c e M a n u a l
■ Installation of Light and Filter Fixtures
Once the ceiling grid is installed, the fixture installation can begin. If “lay-in” light fixtures are to be used, they should be installed
first in order to make the wiring easier. Once the light fixtures are in place and wired, the filter modules can be installed. This is
done by pushing the filter fixture through the grid at an angle and then lowering them until they nest in place. After all the filter
modules are in place, the blank ceiling panels are installed. Installation of Ceiling Tiles Blank panels are placed in the grid
opening after the gasket is in place. Special cuts can be made by measuring from the center line of the grid and deducting 7/8”
from that dimension, (see chart below). For example, a 24 1/2” x 48 1/2” grid centerline would take a blank 23 5/8” x 47 5/8”
in size. If the blank panel hold down clips are utilized, a minimum of six (6) clips per 2’ x 4’ blank panel are required. The clips
are secured to the T-Grid extrusions utilizing a 1⁄4”-20 bolt.
Center Line of Grid - 24 1⁄2” x 48 1⁄2”
Module, Fixture, and Ceiling Tile Size - 23 5/8”x 47 5/8”
CAUTION: Be extremely careful when installing HEPA filters. Be careful not to touch the face of the filter (bottom of
the fixture). This can cause damage to the HEPA filter unit and may need replacing.
■ Sealing Wall Angle
This is a simple process utilizing an approved construction sealant. A bead of sealant is placed at the corner of the wall angle
and existing wall on the room side. The sealant should be applied to assure an airtight seal.
■ Maintenance
Prior to completing the installation, a final inspection and wipe-down should take place. Wipe the panels and extrusions with
an approved cleanroom alcohol wipe. If any chemicals are to be utilized, spot check with extra materials prior to use to insure
that the finish of the wall system is not damaged.
Cleaning of the Envirco MAC-T Ceiling Grid requires the use of non-shedding, cleanroom approved wipers and a solvent of
isopropyl alcohol diluted with distilled water.