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F. Cooling tower performance, winterization (heaters) and noise
analysis.
G. Sound attenuation for fans, ductwork and terminals.
H. Steam PRVs, by-passes and safety valves.
I. Typical catalog cuts of major equipment.
7.8 EQUIPMENT LOCATION AND INSTALLATION
A. GENERAL: Equipment shall be located to be accessible for
installation, operation and repair. Mechanical spaces shall be of
suitable size to permit inspection and access for maintenance, and to
provide space for future equipment when required. The effect that
equipment noise or vibration might have on areas adjacent to, above,
and below equipment shall be considered. Location of equipment remote
from sound sensitive areas should be emphasized. Design shall comply
with specified room sound ratings.
B. HVAC EQUIPMENT: Air handling units and similar equipment shall be
housed in a mechanical equipment room or in a mechanical penthouse
building. Penthouse type of fully weatherized roof top units
constructed in standard sections of modules would be acceptable in
lieu of the mechanical equipment rooms or mechanical penthouses.
These units shall provide access sections for walk through servicing,
maintenance, and shall ensure that the piping connections and
electrical conduits are fully enclosed within the units. The designer
shall ensure close coordination with the architecture and structural
disciplines for issues, such as, aesthetics, operating weight, shaft
locations, etc., while selecting the roof top units.
C. COORDINATION: Coordinate and make provisions for all necessary
stairs, cat walks, platforms, steps over roof mounted piping and
ducts, etc., that will be required for access, operation and
maintenance. Access to roofs by portable ladder is not acceptable.
D. COOLING TOWERS: Select and locate cooling towers to avoid problems
with esthetics, noise, vibrations, air recirculation or drift.
Include a noise analysis of the proposed cooling tower relative to
adjacent occupancies and consider alternative cooling tower
selections if necessary to meet noise level of 60 dB(A) at 15 m (50
ft) which may be lowered for critical locations. Consider provisions
for security and maintenance lights and receptacles. Provide a
permanent service platform and ladders for access to cooling tower
basin access doors.
E. LOUVERS: The outside air intake and exhaust air louvers shall be
located to avoid health hazards, nuisance odors, and reduction in
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