4.
MECHANICAL REQUIREMENTS. Mechanical equipment shall be provided as
indicated in equipment schedules in NAVFAC P-272, Part One. Mechanical
requirements are as follows:
a.
Heating. Heating shall be provided in accordance with NAVFAC
DM-3.3. Air curtain heaters shall be provided at the entrance doors at each
end of the material handling aisle.
b.
Ventilation. Ventilation shall be provided in accordance with
NAVFAC DM-3.3. Separate units shall provide properly heated and filtered
makeup air to the following areas with systems as described. The makeup air
units shall be interlocked to operate only when required by the system in the
shop.
(1)
Carpenter shop with central dust collection system.
(2)
Welding shop with welding booth.
(3)
Electrical shop with vented hood.
(4)
Paint shop with paint booth. Size unit so the supply air
quantity is 10 percent less than the spray booth exhaust, and so that the area
is maintained at a negative pressure in relation to the remainder of the
building. Ventilation shall comply with requirements in NFPA 33.
c.
Air Conditioning. Air conditioning shall be provided in shop
offices and administrative offices as allowed by policy in DOD 4270.1-M. Air
conditioning shall be provided in accordance with NAVFAC DM-3.3.
d.
Lighting. Plumbing shall be provided in accordance with NAVFAC
DM-3.1 and the following:
(1)
Water and drainage systems, including paint and solvent traps,
shall be provided for equipment in the following shops:
(a)
Welding shop water quench tank.
(b)
Paint shop spray booths.
(2)
Emergency shower and eyewash shall be provided for the pest
control shop.
e.
Compressed Air. Compressed air shall be provided in accordance
with NAVFAC DM-3.5. Low pressure compressed air at 125 psi shall be provided
to each shop with outlets located conveniently throughout the shop for
pneumatic tool use. Air compressor requirements are shown in equipment
schedules in NAVFAC P-272, Part One.
f.
Noise and Vibration Control. All mechanical systems and equipment
shall be designed to limit noise in accordance with NAVFAC DM-3.10.
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