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Number:
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SP-735-4
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Product:
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VariCel
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Effective:
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9-10-99
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Specifications for Extended Surface Air Filters, Supported Pleat Type:
1.0 SCOPE
This specification covers extended surface supported pleat type air filters which are a component of air conditioning, heating and ventilating 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" face dimension.
For information on specific sizes and/or efficiencies, call 1-888-223-2003, or email .
| 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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| Gross Media Area (Sq. Ft.) |
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3.2 The filters shall be approved and Listed by Underwriters' Laboratories, Inc. Class 1 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
Each filter shall consist of a pleated media pack contained in galvanized steel cell sides. The filters shall be capable of operating at temperatures up to 350 degrees F. The filters must either fit without modification or be adaptable to the existing holding frames. If adapters are required, they must be included in the total bid price and notation of this requirement made on the bid form.
5.1 Size
The filters shall be supplied with the following nominal dimensions (width x height x depth):
______________ ______________ ______________ ______________
5.2 Cell Sides and Header
The filter cell sides and header shall be constructed of 30 gauge galvanized steel. The header and cell sides must be of unitized design, where the cell sides are interlocked with the header along the entire perimeter of the filter. This is to provide maximum sealing around the filter, eliminating the potential for air bypass. To further seal the contact between the header and cell sides, a small piece of tape is applied at each corner of the filter to eliminate any bypass that may occur. The rear flanges of the cell sides should also be crimped to eliminate sharp edges and riveted to eliminate air bypass. One half inch wide bars of 20 gauge steel are riveted to the air leaving side of the filter to add supplemental support to the media pack.
5.3 Media
The media shall be made of micro glass fibers with a water repellent binder. The media shall be a dual density construction, with coarser fibers on the air entering side and finer fibers on the air leaving side.
5.4 Separators
The media shall be pleated using corrugated aluminum separators. The edges of the separators shall be rolled over, to prevent any accidental abrasion or cutting of the media.
- Media Pack
During the pleating of the media, a small amount of adhesive is applied to each separator, which bonds the adjacent media to the separator. The provides a rigid media pack, that minimizes any shifting or excessive movement of the pack which could damage the media. A layer of lofted, high efficiency media is applied between the media pack and the cell sides at the top and bottom of the filter. This provides a sealant for air bypass, as well as a cushion for the media pack during any shipping or handling. The media is glued along the sides of the filter to prevent air bypass.
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 Rated average ASHRAE efficiency.
6.1.3 Nominal filter size.
6.1.4 Means of identifying air flow direction of the filter when installed.
6.1.5 Underwriters Laboratories, Inc. official mark identifying a Class 1 classification.
6.1.6 Name of manufacturer.
6.2 Shipping containers must be marked with the following information:
6.2.1 The name or tradename of the product.
6.2.2 Rated average ASHRAE efficiency.
6.2.3 Nominal filter size.
6.2.4 Quantity of filters per carton.
6.2.5 Name of manufacturer.
7.0 APPROVED INTERNATIONAL QUALITY SYSTEM
7.1The 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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