OO-A-373D
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.
3.4 Description. The unit shall be a single package type, consisting of one or more factory-made assemblies combined into a single package, and shall be rated, tested and certified, where applicable, in accordance with ARI standards. The unit shall mainly consist of expansion device(s), evaporator or cooling coil(s), compressor(s), condenser(s), air moving and filtering equipment, and cabinet. Where applicable, the unit may also include a heating function. The unit shall be complete with all necessary valves, tubing, piping, motors, wiring, controls, and accessories for a complete and operating unit. The unit shall be factory charged with refrigerant and oil. The basic unit shall be completely assembled and ready for operation when shipped from the factory. Field installation shall require only setting in place and connection to ducts, electrical power, water, heating source, conditioned space controls, and drains as required. Field installation of operating controls and accessories as required herein, is permitted.
3.4.1 Types.
3.4.1.1 Type SP-A. Type SP-A units shall be suitable for outdoor or indoor installation within a conditioned space as specified (see 6.1.1 and 6.2).
3.4.1.2 Type SP-W. Unless otherwise specified (see 6.1.2 and 6.2), type SP-W units shall be suitable for indoor installation. The unit shall be designed for use either with city water, cold well water, or a cooling tower water system, and shall be capable for handling a range in water pressure between 30 pound-force per square inch (psi) (207 kilopascal (kPa)) and 75 psi
(517 kPa).
3.4.1.3 Type SPY-A. Unless otherwise specified (see 6.1.3 and 6.2), type SPY-A units shall be suitable for outdoor installation and have provisions for hot water, steam, gas, or electric heating with heating capacity in Btu/hr (W) as specified (see 6.1.3 and 6.2).
3.4.2 Styles.
3.4.2.1 Style A. Style A units shall provide free delivery of air to the conditioned space and shall be equipped with a plenum chamber and grilles (see 6.1.4).
3.4.2.2 Style B. Style B units shall have provisions for connecting the unit to a duct system
(see 6.1.5).
3.5 Codes and standards. The unit shall conform to requirements of UL 484, UL 1995, ARI 210/240, ARI 270, and ARI 360 as applicable.
3.5.1 Compliance. Prior to approval of the first shipment, the contractor shall submit for the approval of the contracting officer, or his authorized representative, satisfactory evidence that the
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