Project Name
Project Number
TEMF
Statement of Work
UFC 4-214-02, 24 Jul 03
10-9.3
Cooling towers. Each tower shall be the [induced] [forced] mechanical draft,
[crossflow] [or] [counterflow], factory fabricated, factory-assembled type. Towers shall conform
to NFPA 214. Fire hazard rating for plastic impregnated materials shall not exceed 25. Plastics
shall not drip or run during combustion. Determine ratings by ASTM E 84 or NFPA 255. Casing
shall be constructed Type 304 stainless steel or FRP. Basin shall be completely watertight and
constructed of Type 304 stainless steel or FRP. The fill shall be [PVC formed sheets arranged
in a honeycomb or waveform configuration] [or] [treated Douglas-fir, hemlock or redwood]. Fill
shall be removable or otherwise made accessible for cleaning. Provide space supports as
required to prevent sagging and misalignment, and provide for an even mixing of air and water.
Structural supports shall be provided in accordance with the recommendations of the
manufacturer of the tower unless otherwise indicated. Water distribution systems shall be
accessible and permit flexibility of operation. Systems shall be self-draining and nonclogging.
Provide drift eliminators in tower outlet to limit drift loss to not over 0.02 percent of specified
water flow. Fans shall be the [centrifugal] [or] [adjustable-pitch propeller] type, constructed of
Type 304 stainless steel, aluminum or an aluminum alloy, or FRP.
10-9.4
Closed circuit coolers. Casing shall be constructed of hot-dip galvanized steel with
fan section constructed of stainless steel. Coil and frame shall be steel and hot-dip galvanized
after fabrication. Access doors or panels suitably sized and located shall be provided for access
for cleaning, repair, or removal. Provide discharge damper controls to minimize heat loss during
reduced operation and electric heater in sump for freeze protection.
10-9.5
Evaporative condensers. Condenser shall be rated and tested in accordance with
requirements of ASHRAE 64. Condenser shall include fans, water pump with suction strainer,
electric motor and drive equipment, water eliminators if required, condensing coil, liquid receiver
if required, water pan or sump, spray nozzles or water-distribution pan, water strainer, water
make-up assembly, bleeder with flow valve of the needle valve type sized for the flow required
or a fixed orifice, enclosure with suitable access doors, and air-inlet and outlet openings. No
water shall carry over into the unit discharge outlet. Enclosure shall be constructed of [18 gauge
hot-dip galvanized steel] [aluminum], reinforced and braced. Access doors or panels suitably
sized and located shall be provided for access to water nozzles or distribution pan, coils, and
valves for cleaning, repair, or removal of the item.
10-9.6
[Manufacturer's multiyear compressor warranty. The Contractor shall provide a [5]
[10] year [parts only (excludes refrigerant)][parts and labor (includes refrigerant)] manufacturer's
warranty on the chiller compressor(s). This warranty shall be directly from the chiller
manufacturer to the Government and shall be in addition to the standard one-year warranty of
construction. The manufacturer's warranty shall provide for the repair or replacement of the
chiller compressor(s) that become inoperative as a result of defects in material or workmanship
within [5] [10] years after the date of final acceptance. When the manufacturer determines that
a compressor requires replacement, the manufacturer shall furnish new compressor(s) at no
additional cost to the Government. Upon notification that a chiller compressor has failed under
the terms of the warranty, the manufacturer shall respond in no more than [6] [24] [_____]
hours. Response shall mean having a manufacturer-qualified technician onsite to evaluate the
extent of the needed repairs. The warranty period shall begin on the same date as final
acceptance and shall continue for the full product warranty period.]
10-10
AIR DISTRIBUTION SYSTEMS. Provide duct systems conforming to the
recommendations of the SMACNA Duct Construction Standards including seal class
requirements. Fire dampers shall be provided where required by code. Balancing dampers shall
be provided at all branch takeoffs and for all supply outlets. Permanent access to dampers shall
SOW-96
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