8
Step 3: Place the perforated screen
on the PolyKlean Blue pad.
Step 1: Start with the tank empty
and the HDPE grating exposed.
Step 2: Place the PolyKlean Blue
pad on the HDPE grating.
3.5 Preparation for filter installation:
In order to maximize
the life of the chemical filters and the particulate filters, it is
recommended that filter installation be the final installation task
before start-up and commissioning of the system. In preparation for
filter installation, it is recommended that the following be completed:
• Completely clean the system to remove all construction debris
and dirt, sweep and vacuum to remove visible dirt.
• Finalize and complete all caulking in the system.
• Finalize and complete all painting in the system.
It is recommended that all cleaning materials and paints used in the
system be free of solvents. If this is unavoidable it is recommended
that sufficient time be allowed for complete drying to occur and for
the VOCs to disperse before installing the filters. This process can
be accelerated by “blowing down” the system; i.e., operating the fan
without the filters to ventilate the system. Consult with your AAF
representative to obtain an appropriate product. Also, before
“blowing down” the system, check that it is safe to operate the
fan without the pressure load of the gas phase chemical filters.
Consult the AAF submittal drawing for pressure information.
3.6 Prefilter Installation:
A PolyKlean Blue filter pad shall be used
to prevent the build up of dust, grease, and water on the gas phase
chemical media.
Install the prefilters as shown in the sequence shown below.
For best results AAF recommends the use of the 2" thick PolyKlean
Blue filter media. Circular PolyKlean Blue pads will be cut with a
2" overlap.
Equipment Size
PolyKlean Blue Replacement Pad
Part Number
PS-200
358-012-024
PS-500
358-012-037
Remove the polypropylene perforated screen from the bottom of the
tank. Place the PolyKlean Blue pad directly onto the HDPE grating
at the bottom of the vessel. Ensure there are no gaps between the
filter pad and the side wall of the tank. Place the polypropylene
perforated screen on the PolyKlean Blue pad.
