AAF International PRU - Manual (Page 3)

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stacked. Particulate and gas-phase filters shall not be stacked more
than three (3) cartons high to prevent crushing. Only particulate filters
shall be stacked on particulate filters, and gas-phase filters on
gas-phase filters. The gas-phase filters ship inside a carton enclosed
in transparent protective plastic. Under no circumstances shall the
filters be removed from this plastic protection until immediately prior
to installation.
Filter products shall not be stored in areas where they may become
contaminated by chemicals, either acids or alkalis, in liquid, vapor, or
gaseous form.
1.3 Product Descriptions
1.3.1 Recirculation Unit (RU): Each RU will be received
individually mounted on a shipping pallet and wrapped in plastic for
protection during shipping. Refer to the product drawings submitted
on the order for details. The RU is typically supplied in one style,
the Type HD. This refers to style of SAAF Cassette gas-phase chemical
filter that can be accommodated in the unit (see 1.3.2 for details).
1.3.2 Gas-phase Chemical Filter Cassettes: Gas-phase filter
cassettes are shipped in cartons and plastic bags. The carton
shown below contains a single 6" high x 24" wide x 18" deep Type
MD cassette which is supplied as two (2) 6" high x 12" wide x 18"
deep half-cassettes. An HD cassette carton will contain a single 12"
high x 24" wide x 12" deep cassette which is supplied as two (2)
12 " wide x 12" deep half-cassettes.
Recirculation Unit, Model RU2000V with tracking to accommodate four (4) HD cassettes.
Typical Recirculation Unit.