content by volume; 2 coats, 0.038 mm 1 1/2 mils minimum dry film
thickness per coat.
PART 3
EXECUTION
3.1
PREPARATION
Provide storage for equipment and materials at the project site.
Parts
shall be readily accessible for inspection, repair, and renewal.
Protect
materials and equipment from weather.
3.2
INSTALLATION
Install air distribution equipment as indicated and in accordance with the
manufacturer's instructions. Provide clearance for inspection, repair,
replacement, and service. Electrical work shall conform with NFPA 70and
Division 16, "Electrical." Provide overload protection in the operating
disconnect switches and magnetic starters. Locate air intake of air
handling equipment at a minimum of 8 meters 25 feet from industrial stacks,
bathroom vents, and sanitary risers. Prevailing wind direction shall not
be used as justification for placing air intake closer than 8 meters 25
feet of exhaust stacks. Locate annunciator panel in maintenance office or
foreman's office.
3.2.1
Fans
Install with resilient mountings, flexible electrical leads, and flexible
connections between fan inlet and discharge ductwork. Provide [fixed]
sheaves required for final air balance and safety screen where inlet or
outlet is exposed.
3.2.2
Air Handling Units
Install assembled units on vibration isolators [and isolate fan section
with flexible duct connections]. Bolt sections together in high pressure
units. Pipe drain pan to the nearest floor drain.
3.2.3
Power Ventilators
Secure [roof] [wall] exhausters with [cadmium plated steel] [aluminum]
[stainless steel] lag screws to [roof curb] [structure]. Extend ducts to
[roof] [wall] exhausters into [roof curb] [structure]. Counterflash duct
to [roof] [wall] opening.
3.2.4
Room Air-Induction Units
Level and shim units and anchor to structure. Center units under windows.
[Where multiple units occur over windows, divide element into equal
segments, centered under each window.] Extend cabinet enclosure
wall-to-wall unless otherwise indicated. Support cabinet enclosures from
wall mounting strip or attach direct to wall and floor. For units butted
against walls, provide wall angles and trim pieces. Provide radiator
valves on coil supply and return piping, easily accessible manual air vent
at high points, and control valves.
3.3
FIELD QUALITY CONTROL
Schedule and administer specified tests. Provide personnel, instruments,
and equipment for such tests. Correct defects and repeat the respective
SECTION 15720N
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