the 35 percent design review.
**************************************************************************
Provide [surface] [flush] mounted bells suitable for use in an electrically
supervised circuit. Bells shall be 255 mm 10 inch vibrating type with a
sound output rating of at least 90 dBA at 3050 mm 10 feet when tested in
accordance with UL 464.
]2.2.19.5
Connections
Provide screw terminals for each notification appliance. Terminals shall
be designed to accept the size conductors used in this project without
modification.
[2.2.20
Valve Monitor Switches (Tamper Switches)
Provide a tamper switch for each fire protection system control valve.
Tamper switches shall be UL listed as "Extinguishing System Attachment" for
the location and type of valve supervised. The device shall contain double
pole, double throw contacts. Operation of the switch shall cause a
supervisory signal to be transmitted to the FACP upon not more than two
complete turns of the valve wheel or a closure of 10 percent, whichever is
less. Tamper switches shall be equipped with screw terminals for each
conductor.
][2.2.21
Waterflow Detectors
a.
[Provide vane type waterflow detectors for wet pipe sprinkler
systems. The device shall contain double pole, double throw
contacts. Equip the detector with a pneumatic time delay, field
adjustable from 0 to 90 seconds. The time delay shall be set
initially to [30] [45] [_____] seconds. The device shall be a UL
listed extinguishing system attachment rated for the particular
pressure and location at which it is installed. Flow switches
shall be equipped with screw terminals for each conductor.]
b.
Provide pressure type waterflow detectors for dry pipe sprinkler
systems. The device shall contain double pole, double throw
contacts. The device shall be a UL listed extinguishing system
attachment rated for the particular pressure and location at which
it is installed. Switch shall be equipped with screw terminals
for each conductor.
][2.2.22
Electromagnetic Door Holders
**************************************************************************
NOTE: Provide electromagnetic door holders only for
cross-corridor doors and for doors likely to be
propped open once construction is complete.
**************************************************************************
Where indicated on the drawings, provide magnetic fire door hold open
devices. The electromagnetic holding devices shall be designed to operate
on 120 VAC, and require not more than 3 watts of power to develop 172.4 kPa
25 psi of holding force. The initiation of any fire alarm shall cause the
release of the electromagnetic door holding device permitting the door to
be closed by the door closer. The device shall be UL listed based on UL 228
tests.
SECTION 13855N
Page 35
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