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57
Drain Valve Installation
In order to prevent damage during shipping, the drain valve assembly has not been
installed. If desired, the valve should be installed after the cabinet is in its final location.
To install the valve assembly, follow these steps:
Note: The work surface is heavy. Use caution when handling it.
4.
Lift the work surface out of the biosafety cabinet by lifting on the knobs at the front
of the work surface. Steady the work surface while pulling it straight out the front of
the cabinet.
5.
Using a putty knife, remove and discard the stainless steel cover that is sealed over
the drain mounting holes. Scrape out remaining sealant that is around the holes.
6.
Apply a light coating of silicone sealant (user supplied) to the mounting surface of
the drain assembly. Attach the drain assembly under the bottom of the cabinet as
shown in Figure 3-3. Wipe off any excess sealant from the cabinet bottom. Ensure
that the center drain hole is unobstructed.
7.
Make sure the drain valve is in the closed position.
8.
Reinstall the work surface.
9.
Allow the silicone sealant to cure for at least eight hours before exposing it to liquid.
NOTE: The drain valve assembly attaches to the underside of the cabinet bottom.
Apply a light coat of silicone sealant to this surface
of the connector, aligning the three holes in the
connector with the three holes in the biosafety
cabinet liner.
Figure 3-3
