AAF International SAH - Manual (Page 10)

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Repeat the process of prefilter installation until all tracks are filled with
prefilters.
3.7 Gas-phase Chemical Filter Installation: The following
instructions are specific to the installation of the Type MD gas-phase
chemical filter cassettes into an SAH-XXX-2P-MD-2P-6F housing.
Unless specifically mentioned otherwise, the procedure for installing
the Type HD and Type CG cassettes will be exactly the same.
3.7.1 Preparing the Cassette for Installation: Remove the
cassette from its carton and plastic bag. You will notice that each
cassette or half-cassette is accompanied by a plastic bag
containing loose gaskets (see top right). These are supplied
specifically for use when the cassette is to be installed into an AAF
Side Access Housing. These gaskets are critical for the sealing of
the gas-phase cartridges to prevent by-pass of contaminated air
around the filters.
Step 2: Slide the prefilter in as far as it will go.
Step 3: The installed prefilter.
Type MD half-cassette with butterfly and
side gaskets.
Type HD half-cassette with butterfly and
side gaskets.
Install the gaskets onto the cassettes and half-cassettes. The following
pictures show the installation of gaskets onto a Type HD half-cassette.
The process will be similar for the Type MD and Type CG cassettes.
Side gaskets:
Step 1: Remove the paper strip on the back of the black gasket to expose the adhesive.
Step 2: Locate the gasket on the leaving air side of the half-cassette along the edge of
the cassette side plate. A gasket location guide has been formed into the side plate.
The gasket should be located to the outside of this line.
(Note the Type CG cassette is not shown.)