AAF International PORTA Scrubber - Manual (Page 6)

3.7 Installation of Media in the PORTA-Scrubber
There are several varieties of chemical media. Each media is
designed to remove a specific contaminant, or group of
contaminants. The arrangement of media in the scrubber is
significant. Media bed #1 is located closest to the inlet. Review
the drawing and ensure media is being placed in the correct bed.
Respirator masks, chosen in accordance with the safety
instructions found in the MSDS for the chemical media, are
required to be worn by all personnel during the media installation
process, as well as all other personal safety equipment listed
on the MSDS.
Installing Media by Carton:
Loosen latch and remove top hatch. Gradually pour the media in
a controlled manner. Avoid causing significant impact loading by
gradually metering the media into the PORTA-Scrubber. Media
should be filled no higher than 4 inches from the tank lid.
3.8 Latches on Tank Cover
Place the cover on the PORTA-Scrubber tank and latch the cover
as shown.
3.9 Fans
Sometimes the PORTA-Scrubber may be supplied with an
externally mounted blower. See the AAF drawing for information
and details. Blowers can be fitted with an optional power cord
with a 115-volt plug.
CAUTION: All electrical work must be carried out in accordance
with all appropriate governing electrical codes and standards.
3.10 Standard Motors
Model
Voltage Hertz Phase Horsepower
PS-200 115-230 60 1 0.5
PS-500 115-230 60 1 3.0
WARNING: All electrical work has the potential to cause shock,
injury, and even death. Disconnect all power whenever working
on the system. Only qualified electrical personnel should work
on the system at any time.
Provide an appropriate power supply as specified in the submittal
information.
CAUTION: Use of the incorrect line voltage may result in
irreparable damage to electrical components.
4.0 Start-Up Instructions
Immediately on start-up, examine the filter system for any
apparent air leaks or other anomalies. Air leaks may be detected
by noise or by use of a synthetic smoke puffing device at the
external joints and seams of the filter system installation.
Correct or repair any discrepancies, as necessary. Repeat this
examination after 24 hours of operation and again after one
week of operation.
5.0 Maintenance
5.1 PolyKlean Blue filter
A PolyKlean Blue pad has been included as part of the system.
Under normal conditions, the filter can be expected to last for
between 10 and 12 months before reaching its final recommended
capacity loading (see the AAF drawings for details). However, this
may vary under heavier or lighter particulate loading conditions.
At an air velocity of 75 feet per minute the 2˝ deep PolyKlean
Blue pad can be expected to have an initial pressure drop in
the range of less than 0.1˝ water gauge. The recommended final
pressure drop is 1.0 in. w.g.; however, it is recommended that the
PolyKlean Blue pad be replaced whenever new chemical media
is installed.
5.2 Chemical Media Monitoring
A discussion of sophisticated chemical media monitoring is
beyond the scope of this manual. At its most simple, when the
system is used to remove nuisance odors, the time to change
out the chemical media is when the odor begins to be regularly
detected on the clean side of the system. In more stringent
applications, active real time electronic and passive coupon
corrosion monitoring systems are available to determine the
performance of the system. The remaining life of the media can
be determined by taking a sample of media and returning it to
AAF for analysis. Consult with your AAF representative regarding
active and passive monitoring systems and media sampling for
remaining life analysis.
5.3 Removal and Replacement of Particulate and Gas Phase
Chemical Media
Before removing activated carbon media, it is recommended the
media bed be grounded to release any electrostatic discharge.
Removal of filters will be the reverse of the installation process
described earlier in this manual. Filter and media replacement
will be carried out exactly the same as at initial installation
detail with use of manual or pneumatic methods. Reference
appropriate safety precautions related to specific gases being
handled at the facility and any operation instructions developed
during the design phase of the project.
5.4 Disposal of Used Filters
Used chemical filtration media and particulate filters shall be
packaged and disposed of in full accordance with all required
and applicable laws and regulations. Consult with local
environmental control authorities such as local, state, and
federal EPA & OSHA authorities for direction. Material Safety
Data Sheets (MSDS) are available on all products supplied by
AAF. Contact your AAF representative for further information.
5.5 Cover Lid Sealing Gaskets
The proper maintenance of the cover lid sealing gaskets is
critical to the performance of the system. Check the gaskets
carefully whenever the gas-phase chemical filters are replaced.
If gaskets are worn, frayed, or damaged in any way they should
be replaced. Check the seal between the lid and the tank
whenever new SAAF chemical media is installed.
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