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 (d) An alarm signal shall be transmitted to the
FACP to charge the pre-action sprinkler
system in the protected area.
Upon actuation of a manual station, all functions under a and
C.
b above shall occur, including the time delayed discharge.
Manual release station shall be dual action type.
A pressure switch shall be connected to the FACP to sound a
d.
building general alarm but shall not initiate discharge
sequence nor shut down any equipment.
On Air Force projects only, an abort switch shall be provided
e.
and shall be located within the protected area. No abort
switch will be included in Navy projects unless specifically
directed by PACNAVFACENGCOM Code 408.
CO2 SYSTEMS: CO2 systems are not substitutes for required
3.2
sprinkler protection in accordance with DOD criteria.
SUPPLY OF C02:
3.3
Reserve Supply of C02: Provide an in-place complete reserve
3.3.1
supply of CO2 for each system. On Navy projects, this reserve supply shall
be connected through a main/reserve transfer switch. On Air Force projects,
the reserve supply need not be connected.
co2 Supply: Locate CO2 supply cylinders outside of, but
3.3.2
adjacent to or as close as possible to the area(s) being protected. All CO2
cylinders shall be the standard 75 lbs. size.
MANUAL STATIONS: All manual stations shall be distinct (i.e.,
3.4
signs, color and action) from manual building fire alarm stations and stations
for other extinguishing systems.
CO2 HOSE REELS: No new CO2 hose reels shall be installed in
3.5
any building. Existing CO2 hose reels shall be removed when remodeling.
3.6
SYSTEM PIPING:
Cleaning Pipes: Before final testing, swab with alcohol all
3.6.1
system pipes to remove all oil within the pipes. Include this in the
specification.
CO2 Piping Pressure Test: Specify 1000 psi pressure test for
3.6.2
CO2 piping. No more than 150 psi shall be lost in 2 minutes. Include this
in the specification.
CONTROL PANELS: Control panels for CO2 systems shall be
3.7
equipped with separate alarm silence switches for pre-alarm and discharge
alarm circuits.
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