UFC 4-133-01N
24 February 2005
load. Alternate operation of chillers automatically, on a regular
basis, when load is less than 60 percent. Consider cold storage in
minimize power peaks. One chilled water circulation pump for each
chiller, plus a manifold spare pump will be provided. The spare
pump will automatically come on line to act as a redundant pump
for either chiller system.
u. Provide fuel oil or gas operated boiler-heating system designed to
accommodate the largest heating load anticipated. Provide two
circulation pumps, each designed for 100 percent of the total
building-heating load. Design the pump controls to regulate the
pumps as primary and secondary with each pump alternating as
the primary.
2-5.5
Plumbing.
a. Provide drainage from the elevator pit.
b. Provide freeze proof hose bib at the exterior door to the tower cab
catwalk and at the exterior of the ground floor of the ATCT.
c.
In Fire Pump/Mechanical Room, provide floor sink and reduced
pressure backflow preventer for domestic water system. Provide a
duplex pump system and tanks to provide ample pressure for tower
domestic system if the domestic system does not have adequate
pressure.
d. On Mechanical Equipment floor, provide floor sink for equipment.
e. Provide floor sink for fire system maintenance and back flow
preventer drainage.
f.
Provide floor drain for condensation. Provide deionization system
for ultrasonic humidifier in the Electronic Equipment Rooms and
ATC Cab.
g. Provide house vacuum outlet at electronic equipment floors, break
room, and tower cab. Design central vacuum system to have
minimum velocity in piping of 4,500 ft. per minute (FPM). Hoses
will be 50.8 mm (2 in) diameter with 150 SCFM, 7.62 m (25 ft) long
with tool attachments rated for 3.5 in. Hg.
h. Provide floor-mounted mop sink, floor drain, hot water heater, and
central vacuum system.
i.
At briefing room: Provide kitchen-type sink and electric water
cooler.
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