Project Name
Project Number
UEPH Complex
Statement of Work
26 November 2001
offeror.] Units shall be self-contained, single stage, weather- resistant type, and shall conform
to UL 507 and UL 746C. The fan shall be centrifugal type and shall be complete with motor,
drive equipment, and vibration-isolation supports between motor and fan housing on single
phase motors. Water distributor or rotary wheel motor shall be provided with a time delay in the
fan circuit to allow media to be thoroughly wetted before air flow starts. Manual or automatic
reset type thermal overload protection shall be provided. Evaporative cooler fans shall have air
delivery ratings based on AMCA 210 tests by an AMCA approved laboratory. An ultraviolet
retarding agent shall be part of or applied on exterior nonmetallic components susceptible to
ultraviolet degradation from sun rays and conforming to UL 746C. Evaporative media shall be
specifically manufactured for use with evaporative coolers. Media shall be honeycombed type,
fabricated such that no moisture entrainment shall occur. Face velocities shall be limited to
those recommended by media manufacturer. Indirect coolers shall consist of an air-to-air heat
exchanger, water distribution header, scavenger fan and motor, recirculating water pump,
supplemental cooling coil (as required), drain, overflow and makeup water lines and an
accessible damper to allow change-over from heating to cooling. Cooler shall be drainable, and
shall be provided with a mounting frame.
10-5.5
Unit heaters. Units shall be horizontal or vertical air discharge types complete with
fans, [electric] [hot water] [steam] coils, housing and discharge vanes or diffuser.
10-5.6
and enclosures. Enclosures shall be constructed of sheet steel not less than 20 gauge.
10-5.7
Cabinet heater. Units shall be complete with fans, heating elements and enclosing
cabinets. Heating elements shall be constructed of cast iron or of nonferrous material. Cabinets
shall be constructed of sheet steel not less than 20 gauge.
10-5.8
Convectors. Units shall be complete with heating elements and enclosing cabinets
having bottom recirculating opening, manual control damper and top supply grille. Heating
elements shall be constructed of cast iron or of nonferrous alloys. Cabinets shall be constructed
of black sheet steel not less than 20 gauge.
10-6
AIR DISTRIBUTION TERMINAL UNITS. Minimum equipment efficiencies shall be
in accordance with DOE Buying Energy Efficient Products Recommendations ( refer to
10-6.1
Fan coil units. Base units shall include galvanized coil casing, coil assembly drain
pan valve and piping package, air filter, fans, motor, fan drive, and motor switch, plus an
enclosure for cabinet models and casing for concealed models. Outside air can not be supplied
directly through unit. Room fan-coil units shall be certified as complying with ARI 440, and shall
meet the requirements of UL 1995. Enclosures shall be fabricated of not lighter than 18 gauge
steel, reinforced and braced. Front panels of enclosures shall be removable and provided with
1/2 inch thick dual density fibrous glass insulation. Access doors or removable panels shall be
provided for piping and control compartments. Duct discharge collar shall be provided for
concealed models. Enclosures shall have easy access for filter replacement. Fans shall be
galvanized steel or aluminum, multiblade, centrifugal type. Disassembly and re-assembly shall
be by means of mechanical fastening devices and not by epoxies or cements. Coils shall
seamless copper tubing, with copper or aluminum fins mechanically bonded or soldered to the
tubes. Drain and drip pans shall be sized and located to collect all water condensed on and
dripping from any item within the unit enclosure or casing. Drain pans shall be constructed of
not lighter than 21 gauge steel, galvanized after fabrication, thermally insulated to prevent
SOW-132
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