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PACKAGED AIR CONDITIONING UNITS <br />Section 15855 <br />15-1207 <br />B. Handle air conditioning units carefully to avoid damage to components, enclosures, and finish. <br />Do not install damaged components; replace and return damaged components to air <br />conditioning unit manufacturer. <br />PART 2 - PRODUCTS <br />2.01 GENERAL: <br />A. Extent of air conditioning unit work is indicated by Drawings and schedules and by requirements <br />of this section. Each unit shall include fan system, gas heat exchanger, cooling and <br />dehumidifying coil, evaporator coil drain pan, foil -faced thermal insulation, economizer, and any <br />other equipment specified or scheduled, all manufactured by one manufacturer. <br />B. The single -packaged units shall be a standard product of a firm regularly engaged in the <br />manufacture of heating/cooling equipment. <br />C. The equipment shall be shipped completely factory assembled, pre -charged, piped, and wired <br />internally ready for field connections. <br />D. Provide thermal overload protected motors. <br />E. Manufacturer shall test operate system at the factory before shipment. <br />F. Unit shall be U.L. listed. <br />G. All wiring shall be in compliance with Current NEC Codes. <br />H. Acceptable manufacturers: <br />1. Carrier LC Series for 3-7.5 Tons <br />2. Carrier HC Series for 25 Ton <br />3. Or equal by: <br />a. Trane <br />b. American Standard <br />c. York <br />2.02 PACKAGED AIR CONDITIONING UNITS 3 THRU 5 TONS: <br />A. Cooling System: <br />1. The total certified cooling capacity shall not be less than scheduled. <br />2. Units to have two stage scroll compressors with crankcase heaters, and multi speed ECM <br />condenser fan motors. <br />3. The compressor power input shall not exceed that of the unit specified. <br />4. The coils shall be non-ferrous construction with aluminum fins mechanically bonded to <br />durable copper tubes. <br />a. Evaporator coils shall be leak tested to 150 psig, pressure tested to 450 psig, and <br />qualified to UL 1995 burst test at 1,775 psig. <br />b. Condenser coils shall be leak tested to 150 psig, pressure tested to 650 psig, and <br />qualified to UL 1995 burst test at 1980 psig. <br />2 <br />