Installation, Operation and Maintenance Instructions
Table of Contents
1.0 Introduction
1.1 About this document
1.2 Packaging and shipping, receiving and inspection,
handling, and storage
1.3 Product descriptions
1.4 Product model designations
1.5 Product drawings
1.6 Assembly — general comments
1.7 Related system equipment
2.0 Principles of Operation
3.0 Installation Instructions
3.1 Space requirements
3.2 Foundations and anchoring
3.3 Typical Front Access Housing (FAH) details
3.4 General filter bank erection procedure
3.5 Preparation for filter installation
3.6 Gas phase chemical filter installation
3.7 Prefilter installation
3.8 Pressure gauge
3.9 After-filters
5.4 Removal and replacement of particulate and gas phase
chemical filters
5.5 Disposal of used filters
5.6 Gaskets
5.7 General system maintenance
6.0 Troubleshooting
6.1 High pressure drop reading across the filter system
6.2 Visible discharge of particulate
6.3 Odors and smells
7.0 Spare Parts List
8.0 Equipment Characteristics, Operating Weights, and
Shipping Weights
1.0 Introduction
1.1 About this Document
This document contains the information necessary to properly receive,
assemble, install, operate, and maintain the AAF Front Access
Housing (FAH) filter bank and filters. The purchaser, installer, and
operator of the filter system MUST read and comply with this
document in its entirety prior to installation of the equipment and its
operation. Failure to comply with the requirements of this manual may
void the product warranty.
4.0 Start-up Instructions
5.0 Maintenance
5.1 Prefilter
5.2 After-filter
5.3 Gas phase filter monitoring
CAUTION
These instructions are specific to the AAF Front Access Housing
(FAH) filter bank and filters. All ancillary tasks including, but not
limited to, electrical and mechanical work, equipment handling, and
safety procedures must be performed in accordance with industry
accepted practice and all relevant local, state, and federal
government codes, laws, and policies.
1.2 Packaging and Shipping, Receiving and Inspection, Handling
and Storage
1.2.1 Packaging and Shipping: Unless otherwise defined in the
purchase order and agreed by AAF, the FAH and filters are
packaged for domestic transit and shipped FOB the AAF factory.
The method of shipment will be as specified in the customers
purchase order to AAF.
1.2.2 Receiving and Inspection: Obtain a copy of the purchase
order, the product drawing that was submitted by AAF in
association with the order, and a copy of the bill of lading, along
with any other shipping papers. Upon receipt of the equipment, or
any part thereof, these documents shall be used to ensure that the
correct product has been received.
For maximum protection, complete the following steps upon receipt
of the FAH filter bank and filters:
— Inspect the shipment and all associated documentation. Notify
the carrier immediately if there is any visible damage to the
packaging or the equipment, or a discrepancy in the shipping
papers and, if necessary, file an immediate claim with the carrier
against such damage or discrepancy.
— Confirm that the equipment received agrees with the contents
of the shipping papers.
— Confirm that the shipping documents agree with the purchase
order. Refer to the product drawing submitted for the order as
necessary.
— If it is determined that any equipment ordered on the purchase
order has not been delivered and is not accounted for in the
shipping papers contact AAF international immediately by calling
1-800-477-1214. Reference the AAF control number which will
be listed on the shipping papers.
Each shipment may include:
— Individually packaged Front Access Housings.
— Packaged particulate filters.
— Packaged gas phase chemical filter cassettes.
Note that the housings and the particulate and gas phase filters
may ship from different locations and be received at different times.
At all times the equipment shall be protected from exposure to weather.
The equipment shall be stored in a clean, dry, temperature controlled
environment. All items shall be stored on pallets so that they are
elevated above grade. The Front Access Housings and particulate and
gas phase filters shall not be stacked more than three (3) cartons high
to prevent crushing. Only FAH shall be stacked on FAH, particulate
filters 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 Front Access Housing (FAH): Each FAH will be received
individually in a carton. Depending on the quantity supplied, these
cartons may be palletized and banded together. The FAH is supplied
in three styles: Type MD, Type HD, or Type CG (as shown at top of
page 3) and will be the full size 2 high x 2wide housings shown, or
depending on the size of the filter bank required, may include half
size housings. Half size housings are available in half height (1 high
x 2wide) or half width (2high x 1wide) sizes, except for the Type
CG which is only provided in the half width size. Half size housings
hold half the number of gas phase cassettes as full size housings
and use half size particulate filters.
Any particular filter bank will be assembled using only one type of
housing (Type MD, Type HD or Type CG). Housing types will never
be mixed in a single filter bank.
1.3.2 Gas Phase Chemical Filter Cassettes: Gas phase filter
cassettes are shipped in cartons and plastic bags. The carton
shown 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.
1.2.3 Handling and Storage: Following receipt, inspection, and
acceptance of the equipment, and prior to assembly and installation,
the FAH and the particulate and gas phase filters shall be handled
with great care. The components shall be retained and stored in their
protective packaging until immediately prior to installation. Care shall
be taken to ensure that the packages are not dropped or subjected to
any impact loads.
2
Model FAH-202-2P-MD housing holds
four (4) MD cassettes.
Model FAH-202-2P-HD housing holds
two (2) HD cassettes.
The three (3) types of gas phase chemical filter cassettes that can be
supplied are as follows:
Model FAH-202-2P-CG housing holds
two (2) CG cassettes.
Leaving air face of the housings is shown.
6 high x 24 wide x 18 deep Type MD cassette ships in two halves.
12 high x 24 wide x 12 deep Type HD cassette ships in two halves.
24 high x 12 wide x 12 deep Type CG cassette ships in one piece.
1.3.3 Particulate filters: Particulate filters will typically be AAF
PerfectPleat¤pleated filters. Depending on the size of the filter
frame ordered 24 high x 24 wide x 2 deep full size filters, 24
high x 12 wide x 2 deep, or 12 high x 24 wide x 2 deep half size
filters may be supplied. PerfectPleat 2 deep filters are packaged
12 to a carton.
3
1.4 Product Model Designations
The FAH model is designated as follows:
FAH - 202 — 2P — MD
Supports Type MD cassettes
Supports a 2 deep particulate pre-filter,
if required.
Copies of the appropriate drawings will have been supplied as part of
the AAF submittals in response to the purchase order. Obtain and
review these drawings before proceeding with the assembly and
installation of the filter bank. The assembled filter bank drawings
include the following details for filter bank sizes 102 (1 high x 2 wide)
through 812 (8 high x 12wide):
— Overall filter bank dimensions
— Shipping weights
— Operating weights
— Sizes and quantities of Front Access Housings required
— Sizes and quantities of filters required
— Details of the gas phase chemical media supplied
— Details of the particulate filters supplied
— Pressure losses across the filter bank at nominal airflow design
velocities
— Installation and assembly details
1.6 Assembly — General Comments
As indicated previously, the individual components that will comprise
the filter bank will ship separately and will be required to be
assembled and installed on site. Refer to Section 3.0, Installation
Instructions, of this manual for further detailed instructions. Consult
with an experienced installer to obtain an accurate estimate of the
time, personnel, and equipment resources and tools that will be
required to complete the assembly and installation of the filter bank.
Site assembly will be limited to moving and lifting individual
components with a maximum weight of approximately 55 pounds (25
kg), riveting or screwing components together, and caulking.
Completion of the following preparations and provision of the following
items will be the responsibility of the installer or others:
— Site preparation
— Stainless steel rivets, as required
— Caulk, as required
— Sheet metal, or other duct, as required
— Sheet metal perimeter blank-off panels, as required
These items will not be supplied by AAF unless noted specifically in
the AAF quotation and in the accepted customer purchase order.
Details of the assembled filter banks are shown on the following
AAF drawings:
In general, assembly of the filter bank will consist of the following:
— Preparation of the installation location
— Transportation of all components to the installation location
— Unpacking the Front Access Housings
— Assembling and installing the Front Access Housings
— Sealing the filter bank perimeter to prevent by-pass of unfiltered air
— Unpacking gas phase chemical filter cassettes
— Installing gas phase chemical filter cassettes
— Unpacking particulate filters
— Installing particulate filters
— Cleaning the site
— Start-up and commission of the filter system
1.7 Related System Equipment
Ventilation systems will often include other equipment including but
not limited to:
— Fan(s)
— Dampers
— Weather louvers
— Air tempering equipment
— Other filter banks
— Instrumentation
— Electronic instrumentation and controls
— Ductwork
Neither the interface of these items with the filter system supplied by
AAF, nor the installation, operation and maintenance of these items is
covered in this manual.
Whether these items are supplied by AAF or by others, consult the
documentation specific to these products for appropriate instructions.
2.0 Principles of Operation
An understanding of the design and operating principle of the Front
Access Housings with Gas Phase Chemical Filters is useful for
effective installation, operation and maintenance. The system is
intended to remove gaseous contaminants from intake, re-circulated,
or discharged ventilation air. Examples of such contaminants may be
nuisance odors and smells that may cause domestic and
neighborhood discomfort and reduce workplace productivity, or harmful
gases that may cause damage to health, plant and product in industrial
applications. The heart of the system is the AAF SAAF Cassette. This
is a high impact plastic frame that supports various types of dry,
granular, chemical media between perforated screens that allow air to
move through the filter. The SAAF Cassette is designed to support the
chemical media in a V-bank configuration of media beds that maximizes
the media exposed to the air stream, reduces the air stream velocity
through the media bed, maximizes energy efficiency, and maximizes the
removal of contaminants and the life of the product. The method of
contaminant removal is through a combination of the physical property of
adsorption and the chemical process of oxidation. AAF offers a variety of
impregnated and un-impregnated dry granular media to handle a wide
range of contamination problems. For more information on AAFs gas
phase air cleaning products contact your AAF representative.
The AAF Front Access Housing (FAH) is one of the various framing
and support systems designed to support the SAAF Cassette in the
air stream and to allow easy installation, operation and maintenance
of the system.
3.0 Installation Instuctions
Consult the product drawing(s) submitted on this order before
proceeding.
3.1 Space Requirements: Aminimum of 24 clear space must be
available at the rear, or downstream side, of the filter bank and 36
clear space at the front, or upstream side, of the filter bank for access
to perform routine maintenance. Additional space may be required for
inlet and outlet ductwork.
3.2 Foundations and Anchoring: The foundation must be designed to
be adequate to support the filter bank operating weight, and any
seismic, live or other loads (if any), with a sufficient factor of safety as
determined to comply with the requirements of all applicable governing
codes, standards, and laws. Ensure that the foundation surface is level
and smooth before proceeding. The filter frame is designed for
operation in indoor locations without any unusual loading condition,
other than the static loading from the filters and the pressure loss
across the filter bank. For this reason, the lower housings are not
intended to be anchored to the foundation. If anchors are used the
installer shall ensure that the anchor heads do not interfere with the
installation of the lowest tier of gas phase filter cassettes. If the frame
bank is required to withstand unusual or dynamic loads, then special
anchoring arrangements featuring removable supports may be required.
5
Loading...
+ 11 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.