AAF International PORTA Scrubber - Manual (Page 5)

3.4 General Filter System Installation
3.4.1 Installing the PORTA-Scrubber: Keeping the
PORTAScrubber on its shipping pallet, move it to its final
installation location. Remove the plastic wrapping and straps
that secure the PORTA-Scrubber to its pallet.
WARNING: The tank lid will not support the weight of the
unit. Any attempt to support the unit from the tank lid may
result in serious equipment damage and severe personal
injury. Do not walk on the top of the unit or use the top for
storage of materials.
3.4.2 Locating, Mounting, and Supporting the
PORTA-Scrubber: Position the PORTA-Scrubber in its final
installation location. The support surface under the base of the
frame shall be level, smooth, clean, and dry. The location shall
not be subject to standing water or flooding. The circumference
of the tank base shall be fully supported. Adjust the supports
so that the base is level in all directions.
Provision for the anchoring hardware, support cradles, or any
other supporting component will be the responsibility of the
installer or others. These items will not be supplied by AAF
unless noted specifically in the AAF quotation and in the
accepted customer purchase order.
3.4.3 Connection of inlet and outlet ducts: Inlet and outlet
ducts, when required, shall be connected to the inlet and outlet
faces of the housing.
WARNING: The housing is not designed to support the
weight of the inlet and outlet ducts. All ducts shall be
supported independently of the housing. Any attempt to
support the ducts from the housing may result in serious
equipment damage and severe personal injury.
3.4.4 Sealing the inlet and outlet duct connections: A
flexible coupling with stainless steel clamps is provided. All
other provisions of the inlet and outlet ducts, the connecting
hardware for the inlet, and the gaskets or caulk will be the
responsibility of the installer or others. These items will not be
supplied by AAF unless noted specifically in the AAF quotation
and in the accepted customer purchase order.
Caulk generously, between the flanges of the connecting ducts
and the housing to prevent air leaks. Any caulk used shall be
a long life, flexible, non-drying caulking material. The caulk
supplier shall ensure that the caulk shall meet the customer
specifications for the application in which it is being used.
CAUTION: Many installations prohibit the use of certain
caulking materials such as Silicone. The use of materials
containing VOCs should also be avoided as they may have
a negative effect on the life of the gas-phase filters.
3.5 Preparation for filter installation: In order to maximize the
life of the chemical filters and the particulate filters, it is recom-
mended 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 BlueReplacement 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.
Step 1: Start with the
tank empty and the
HDPE grating exposed.
Step 2: Place the
PolyKlean ™ Blue pad
on the HDPE grating.
Step 3: Place the
perforated screen
on the PolyKlean ™
Blue pad.
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