Complete Compiled Specification.pdf - Peck Ormsby Construction

AIR HANDLING UNIT: (AHU-1)
Part 1 — General
1.01 QUALITY ASSURANCE
A. Manufacturer Qualifications:
Company specializing in manufacturing the products specified in this section with minimum of five
years documented experience.
B. Units shall be manufactured in a facility registered to ISO 9001:2000 manufacturing quality standard.
C. Air-handling unit assembly shall have UL 1995 certification for safety.
D. Coil performance shall be certified in accordance with ARI Standard 410.
E. Air-handling unit shall be ARI 430 listed and meet NFPA 90A requirements.
1.02 DELIVERY, STORAGE AND PROTECTION
A. All indoor units, painted or unpainted, shall be completely shrink-wrapped from the factory for
protection during shipment. Tarping of bare units is unacceptable.
B. Inspect for transportation damage and store in clean dry place and protect from weather and
construction traffic. Handle carefully to avoid damage to components, enclosures, and finish.
1.03 START-UP REQUIREMENTS
Do not operate units until ductwork is clean, filters are in place, bearings lubricated, condensate properly
trapped, piping connections verified and leak tested, belts aligned and tensioned, all shipping braces
have been removed, and fan has been test run under observation.
Part 2 — Products
2.01 GENERAL DESCRIPTION
A. Units shall ship in the number of sections necessary to meet project requirements.
B. Unit shall be factory-supplied, central station air handler. The air-handling unit shall consist of a fan
with the following factory-installed components as indicated on the equipment schedule.
1. Filter/Mixing Box Section including outside air dampers, return air dampers, filter racks, filter
access door, and filters (to include an additional set to be left with the owner).
2. Hot water coil.
3. Chilled water coil with stainless steel condenser drain pan and connection.
4. Fan section with plenum fan.
.
2.02 CASING
A. Construction:
1. Unit shall be constructed of a complete frame with easily removable panels. Removal of any
panel shall not affect the structural integrity of the unit. Single height coil sections shall have
removable frame sections to facilitate vertical coil extraction.
2. All units shall be supplied with 16-gage, G-90 galvanized steel base rails. Bolt-on legs are
NOT acceptable. Perimeter 10-gage lifting lugs for overhead lifting shall be provided on each
section. Slinging units in place of lifting lugs shall not be acceptable.
3. Unit shall be thermally broken to minimize the conduction path from the inside of the casing
to the outside.
4. Casing panels (top, sides, and bottom) shall be constructed of galvanized steel, and shall
have one of the following exterior finishes as specified:
a. Pre-painted with a baked enamel finish passing 500-hour salt spray test (ASTM B-117) for
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SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION March 2, 2009
HEATING-COOLING 15700-8