room requirements. Typically, indoor spaces housing
liquid chilling equipment must meet the mechanical
room requirements defined in ASHRAE 15.
ASHRAE 15 refers to a mechanical room as a machinery
room, however, the terms are synonymous. On
mechanical room design, ASHRAE 15 touches on
criteria concerning chiller placement, ventilation
design, door and passageway restrictions,
refrigerant monitoring, open-flame devices,
pressure-relief and purge piping. In addition to
mechanical room design, ASHRAE 15 also touches on
criteria concerning refrigerant piping, signs,
self-contained breathing apparatus (SCBA), and
miscellaneous installation restrictions. (SCBAs
cannot be considered MCA funded items and are
therefore not included in this specification.)
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2.1
STANDARD COMMERCIAL PRODUCTS
Materials and equipment shall be standard products of a manufacturer
regularly engaged in the manufacturing of such products, which are of a
similar material, design and workmanship. The standard products shall have
been in satisfactory commercial or industrial use for 2 years prior to bid
opening. The 2 year use shall include applications of equipment and
materials under similar circumstances and of similar size. The 2 years
experience shall be satisfactorily completed by a product which has been
sold or is offered for sale on the commercial market through
advertisements, manufacturer's catalogs, or brochures. Products having
less than a 2 year field service record shall be acceptable if a certified
record of satisfactory field operation, for not less than 6000 hours
exclusive of the manufacturer's factory tests, can be shown. Products
shall be supported by a service organization, as specified in the
Submittals paragraph. System components shall be environmentally suitable
for the indicated locations.
2.2
NAMEPLATES
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NOTE: In a salt water environment, substitute
acceptable non-corroding metal such as but not
limited to nickel-copper, 304 stainless steel, or
monel. Aluminum is unacceptable. Nomenclature (or
system identification) should be established by the
designer.
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Major equipment including chillers, compressors, compressor drivers,
condensers, liquid coolers, receivers, refrigerant leak detectors, heat
exchanges, fans, and motors shall have the manufacturer's name, address,
type or style, model or serial number, and catalog number on a plate
secured to the item of equipment. Plates shall be durable and legible
throughout equipment life and made of [anodized aluminum] [stainless steel]
[_____]. Plates shall be fixed in prominent locations with nonferrous
screws or bolts.
SECTION 15620A
Page 16
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