UFC 4-133-01N
24 February 2005
c.
ATCT cab HVAC system: The system will be located directly under
the tower cab level and consist of redundant HVAC equipment.
d. The pipe chase will be fire stopped at every floor. To prevent
freezing, the chase will be opened with louvers, one high and one
low between each floor. Provide supply grilles at every other
landing complete with fire dampers.
e. Heat and cool the elevator equipment. Consideration will be given
to ventilation air entering low and exiting high for cooling.
f.
Air-condition the corridor and electrical room.
g. Heat the stair pressurization room and vestibule.
h. Heat the fire pump room.
i.
Heat and air-condition the electronic spaces.
j.
Heat the vestibule.
k.
Air-condition the office and vestibule room.
l.
The janitor and toilet room will have ceiling-mounted exhaust fans
providing six air changes per hour minimum.
m. Air-condition and heat the Briefing room.
n. Heat the mechanical room.
o. Heat and air-condition the tower cab. The cab will also have a
smoke removal fan controlled from the cab.
p. An elevator shaft smoke damper will be provided to meet life-safety
criteria.
q. All critical spaces will have complete redundant system with
automatic primary and secondary control to be able to maintain
temperature and ventilation requirements.
r.
All mechanical units will have automatic thermostatic control
utilizing direct digital control.
s.
The first choice for the heating and cooling system will be a four-
pipe chilled and hot water distribution system with separate air
handlers for each zone or dehumidifying system.
t.
The chilled water system will consist of two parallel piped air-cooled
chillers, each designed for 60 percent of the total ATCT cooling
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