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Number:
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SP-525-1
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Product:
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DriPak
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Effective:
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9-19-96
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Specifications for Extended Surface Filters Non-Supported Pocket Type, U.L. Class 1 and 2:
1.0 SCOPE
This specification covers extended surface non-supported pocket filters which are a component of heating, ventilating and air conditioning systems.
2.0 PURPOSE
The purpose of this specification is to establish performance characteristics and identify physical properties that are necessary for proper filter performance. Conformance to all items in the specification is the responsibility of the bidder.
3.0 PERFORMANCE CHARACTERISTICS
3.1 Filters of the size, air flow capacity and nominal efficiency shall meet the following rated performance specifications based on the ASHRAE 52.1-92 test method. Performance tolerance specified in Section 7.4 of the Air-Conditioning and Refrigeration Institute (ARI) Standard 850-93 shall apply to the performance ratings. All testing is to be conducted on filters with a nominal 24"x24" header dimension.
For information on specific sizes and/or efficiencies, call 1-888-223-2003, or email .
| Nominal Average Dust Spot Efficiency |
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| Nominal Size (Width x Height x Depth) |
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| Rated Air Flow Capacity (CFM) |
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| Final Resistance (In W. G.) |
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| Rated Initial Resistance (In W. G.) |
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| Rated Average Atmospheric Dust Spot Efficiency |
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| Rated Dust Holding Capacity (Grams) |
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| Gross Media Area (Sq. Ft.) |
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3.2 The filters shall be approved and Listed by Underwriters' Laboratories, Inc. Class 1 or 2 when tested according to U. L. Standard 900 and CAN 4-5111.
3.3 The supplier shall agree to have a representative make on-site inspections on a quarterly basis. The purpose of this inspection is to insure that the filters are functioning properly.
4.0 BID ATTACHMENTS
4.1 One (1) ASHRAE 52.1-1992 test report from an independent, commercially operated test lab or a test lab covered by an ISO 9000 quality/business system with documented operating procedures including an audited calibration system. The filter models tested must be acquired on the open market by the test lab. The supplier shall grant permission to the test lab which conducts the ASHRAE tests to verbally verify the test results to the purchaser on request.
5.0 PHYSICAL CHARACTERISTICS
5.1 Each filter shall consist of a rigid, corrosion resistant metal header, with a double U-design profile for added pocket support. The corners of the header frame must have an overlapping tab, to prevent the potential for air bypass through the mitered corner. The media pockets are secured around metal mouthrings, which are then inserted into the header. For added security, a layer of adhesive is applied around the perimeter of the mouthring to bond the assembly. The mouthrings shall be formed with an L - shaped bar of rolled steel to keep the ring firmly lodged inside of the header, and to prevent flexing and buckling during inflation. The individual mouthrings are then mechanically adhered to the adjacent mouthring to form a unitized filter assembly. A small amount of adhesive is applied to the backside of the header corner, to eliminate the potential of media wear and tear. The use of staples, metal clips or plastic fasteners is unacceptable in the construction of the filter.
5.2 The filter media shall consist of fine fiberglass media with a high strength, spunbonded synthetic scrim backing for class 2 and a fire retardent nonwoven backing for class 1.
5.3 The media blanket will be formed into pockets by an alternating span stitch dividing the pocket into a series of channels. Each channel line shall be sealed with a thermoplastic sealant to prevent leakage. The pocket shall be dynamically balanced to allow full inflation without touching adjacent pockets.
6.0 PACKAGING AND IDENTIFICATION
Packaging shall provide adequate protection against damage or deterioration during shipment and allow complete identification of both the filters and the shipping container.
6.1 Each filter must be marked with the following
6.1.1 The name or tradename of the product
6.1.2 U.L. official listing mark including notation of class
6.1.3 Name of Manufacturer
6.2 Shipping containers shall be marked with all items specified in 6.1.
7.0 APPROVED INTERNATIONAL QUALITY SYSTEM
7.1 The manufacturer shall have implemented, or be in process of implementing, an approved international quality system based on ISO 9000 at the facility manufacturing this product.
7.1.1 If manufacturer has implemented an approved international quality system, the manufacturer shall make available documentation showing third party certification of same.
7.1.2 If manufacturer is in process of implementing an approved international quality system, manufacturer shall submit evidence illustrating progress towards compliance. Evidence is defined as a timetable for implementation plus one or more operating procedures.
7.2 If requested, manufacturer shall make available their procedures describing the monitoring of their Approved Vendors List (AVL).
7.3 If requested, manufacturer shall make available a copy of their Corporate Quality Manual.
7.4 Manufacturer shall provide evidence of a corporate quality policy which must be signed by an officer of the company.
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