WW-F-2743A
3.2 Standard commercial product. The furnaces shall, as a minimum, be in accordance with the requirements of this specification and shall be the manufacturer's standard commercial product. Additional or better features which are not specifically prohibited by this specification but which are a part of the manufacturer's standard commercial product, shall be included in the furnaces being furnished. A standard commercial product is a product which has been sold or is being currently offered for sale on the commercial market through advertisements or manufacturer's catalogs or brochures and represents the latest production model.
3.3 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2.1.
3.4 Materials. Materials used shall be free from defects which would adversely affect the performance or maintainability of individual components or of the overall assembly. Materials not specified herein shall be of the same quality used for the intended purpose in commercial practice. Unless otherwise specified herein, all equipment, material, and articles incorporated in the work covered by this specification are to be new and fabricated using materials produced from
recovered materials to the maximum extent possible without jeopardizing the intended use. The term "recovered materials" means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials. Unless otherwise specified, none of the above shall be interpreted to mean that the use of used or rebuilt products is allowed under this specification.
3.5 Interchangeability. All units of the same classification furnished with similar options under a specific contract shall be identical to the extent necessary to ensure interchangeability of component parts, assemblies, accessories, and spare parts.
3.6 System of measurement. The dimensions used in this specification are not intended to preclude the use of the metric system of measurement in the fabrication and production of the material, individual parts, and finished product, provided form, fit, and function requirements are satisfied.
3.7 Codes and standards. Forced-circulation furnaces and unit heaters furnished under this specification shall meet the requirements of the following codes and standards to the extent specified:
a. Type I, group 1, oil-fired units shall meet the requirements of UL 727, including the burners and controls. Burners shall be of the high pressure or low pressure type with direct spark ignition and primary safety controls in accordance with UL 296. Vaporizing type burners shall not be permitted.
b. Type I, type II, group 1 and group 2, gas-fired units shall meet the requirements of
ANSI Z21.47 and shall be A.G.A. design certified as complete units, including the burners and controls. Ignition systems shall be of the hot-surface or direct spark, intermittent or interrupted types. Gravity furnaces and continuous pilots shall not be permitted.
6
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business