indicate when batteries are manually placed on a high rate of charge as
part of the unit assembly if a high-rate switch is provided.
2.5
MANUAL ACTUATION STATIONS
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NOTE: Where there is no room flooding or no raised
floor space, omit requirement for separate actuation
stations.
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Provide actuation stations for systems at the exits from the protected
areas. Operation of a manual station shall cause the control panel to go
into full alarm condition and discharge Halon into the protected area
following the adjustable time delay. [Provide separate, clearly labelled,
manual stations for control of underfloor discharge and room flooding.]
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 or orange. Warning signs shall be placed at each
station indicating that operation of the station will cause immediate Halon
discharge. Where building fire alarm pull stations are also mounted at the
exits from the protected areas, they shall be separated from Halon
actuation stations by at least one meter 3 feet horizontally, labels shall
be provided to clearly distinguish building fire alarm stations from Halon
stations and stations shall be of different colors.
2.6
SMOKE DETECTORS
Designed for detection of abnormal smoke densities by the [ionization]
[photoelectric] principle. Necessary control and/or power modules required
for operation of the device shall be integral with the main control panel.
Detectors shall be compatible with main control panel provided and shall be
suitable for use in a supervised circuit. Detectors shall not draw power
from the initiating circuit. Operating power shall be taken from a
separate supervised power supply circuit. Malfunction of the electrical
circuitry to the detector or its control or power units shall result in the
operation of the system trouble devices. Detectors shall not be
susceptible to operation by changes in relative humidity. Each detector
shall contain a visible indicator lamp that shall show when the unit is
activated. Each detector shall be the plug-in type in which the detector
base contains screw terminals for making all wiring connections. Remote
indicator lamp shall be provided for each detector that is located above
suspended ceilings, beneath raised floors or otherwise concealed from view.
2.6.1
Ionization Detectors
Multiple chamber type which is responsive to both visible and invisible
products of combustion. The sensitivity of each detector shall be field
adjustable to compensate for the conditions under which it is to operate.
2.6.2
Photoelectric Detectors
Operate on a multiple cell concept using a light-emitting diode (LED) light
source. Failure of the LED shall not cause an alarm condition but shall
operate the detector trouble indicating lamp.
SECTION 13966N
Page 16
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