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10/19 IOM-92LFDFINST
Nailor Industries Inc. reserves the right to change any information concerning product or specification without notice or obligation.
LAY-IN CEILING INSTALLATION PROCEDURE:
The Laminar Flow HEPA Diffuser is fully assembled from the factory with the exception of the HEPA filter which is shipped
separately.
NOTE:
These instructions are for a T-bar lay-in ceiling. Some installations require custom mounting and/or custom diffusers.
In those cases be sure to seal the unit to the ceiling and seal all penetrations through the plenum walls.
Step 1
Carefully remove the unit from the shipping carton and inspect for damage that may have occurred during shipping.
If shipping damage is found, do not install. Call the manufacturer to report damage.
Step 2
Wipe down unit to remove shipping dust and debris.
Step 3
Using a flat screw driver, release the face frame by rotating the four (4) fasteners a quarter-turn counter clock-wise.
Unhook the safety cables from the filter clips. Set the frame aside.
Step 4
Raise unit into ceiling and lower onto gasketed opening. Gasket should be a closed-cell material approved for the
environmental conditions. It is recommended to further support the unit from above using the tabs welded to the
plenum.
Step 5
Install the HEPA filter per the "Removal and Replacement of the HEPA Filter with Gel Seal" section on page 6.
Step 6
Wait at least 30 minutes after filter install and ensure there is a positive pressure in the room before performing
any challenge leak testing.
Step 7
Raise the face frame back into place, re-attach the safety chains, and secure quarter-turn fasteners.
