2.5
PIPING SUPERVISION
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NOTE: Include for projects involving pre-action
sprinkler piping systems or pneumatic detection
systems only.
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[Pre-action sprinkler piping] [and] [pneumatic detection system] shall be
supervised. A break in the piping or tubing systems resulting in loss of
pneumatic pressure shall result in the activation of a trouble signal.
Provide a silencing switch which transfers trouble signals to an indicating
lamp and arrange so that correction of the trouble condition will
automatically transfer the trouble signal from the indicating lamp back to
the trouble signal until the switch is restored to normal position.
2.6
MANUAL RELEASE STATIONS
Provide overhead system, [and] [monitor nozzle] release stations where
shown and separate hose station release stations at each hose station.
Stations shall be of a type not subject to operation by jarring or
vibration. Stations shall have a dual action release configuration to
prevent accidental system discharge. Break-glass-front stations are not
permitted; however a pull lever break-glass-rod type is acceptable. Station
color shall be red. Station shall provide positive visible indication of
operation. Restoration shall require use of a key or special tool. Place
warning signs at each station indicating that operation of the station will
cause immediate AFFF discharge. Where a building fire alarm pull station
is also mounted in the vicinity of a foam release station, separate the
stations by at least one meter 3 feet horizontally. Provided permanent
engraved rigid plastic or metal labels to clearly distinguish foam release
stations from building fire alarm stations, and to indicate the function of
each foam release station. Stations shall be weatherproof type.
2.7
HEAT DETECTORS
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NOTE: Select the type of heat detector most suited
for application or design. Do not use rate-of-rise
detectors in areas subject to rapid temperature
changes (e.g. near unit heaters, etc.). Consult the
Division Fire Protection Engineer.
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Designed for detection of fire by [combination fixed temperature
rate-of-rise] [rate compensating] principle. Locate detectors in
accordance with their listing by UL or FM and the requirements of NFPA 72,
except provide at least two detectors in all rooms of 56 sq meters 600
square feet or larger in area. Temperature rating of detectors shall be in
accordance with NFPA 72. Reduce heat detector spacing in areas with
ceiling heights exceeding 3 meters 10 feet, in accordance with NFPA 72. No
detector shall be located closer than 305 mm 12 inches to any part of any
lighting fixture nor closer than 610 mm 24 inches to any part of an air
supply diffuser. Detectors, located in hazardous locations as defined by
NFPA 70, shall be types approved for such locations. Provide with terminal
screw type connections. Removal of detector head from its base shall cause
activation of system trouble signal. Detectors shall be weatherproof type.
SECTION 13958N
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