Velociti® Series
ATD-L2F, ATD-RL2F
Description
Addressable Thermal Sensor
The Gamewell-FCI Velociti® Series, addressable plug-in
thermal sensors with integral communication provide fea-
tures that surpass conventional sensors. Point ID capabil-
ity allows each sensor’s address to be set, providing exact
locations for pinpointing alarm locations and for selective
maintenance. ATD thermal sensors use an innovative ther-
mistor sensing circuit to produce 135°F/57°C fixed-temper-
ature (ATD-L2F). The ATD-RL2F provides a combination
15°/minute rate-of-rise with 135° fixed thermal detection
that is included in a low-profile package. The ATD-HL2F
provides fixed high-temperature detection at 190°F/88°C.
These thermal sensors provide cost-effective, addressable
property protection in a variety of applications.
ATD-L2F
The Velociti® Series uses a communication protocol that
substantially increases the speed of communication
between the sensors and Gamewell-FCI analog address-
able fire alarm controls. These devices operate in a
grouped fashion. If one of the devices in the group has a
status change, the panel’s microprocessor stops the group
poll and concentrates on the single device. The net effect
is response speed up to five times greater than earlier
designs.
Features
•
•
•
Sleek, low-profile design
Visual rotary switch addressing
Built-in functional test switch activated by an external
magnet
Installation
ATD plug-in sensors use a separate base to simplify instal-
lation, service, and maintenance. A special tool allows
maintenance personnel to plug-in and remove sensors
without using a ladder.
•
Bicolor LEDs flash green whenever the sensor is
addressed, and light steadily red on alarm*
Optional relay, isolator, or sounder bases
Low standby current
•
•
•
•
•
Mount the base on a box which is at least 1.5" (3.8 cm)
deep. Suitable mounting base boxes include:
Addressable communication
•
•
•
•
4.0" (10.2 cm) square box.
Stable communication technique with noise immunity
Optional remote, single-gang LED accessory
(RA-400Z)
3.5" (8.9 cm) or 4.0" (10.2 cm) octagonal box.
Single-gang box (except relay or isolator base).
With B501BH or B501BHT base, use a 4.0" (10.2 cm)
square box.
•
Suitable for installation in ducts
•
With B224RB or B224BI base, use a 3.5" (8.9 cm)
octagonal box, or a 4.0" (10.2 cm) octagonal or square
box.
Note: *Only the red LED is operative in panels that do not operate
in Velociti® mode.
NOTE: Because of the inherent supervision provided by
the SLC, end-of-line resistors are not required. Wiring “T-
taps” or branches are permitted for Style 4 (Class “B”)
wiring.
An ISO 9000-2000 Company
SIGNALING
Velociti® and E3 Series® are registered trademarks of Honeywell
International Inc.
FM
MEA
UL® is a registered trademark of Underwriters Laboratories Inc.
APPROVED
Approved
S2332 3023594 219-02-E Vol.VI 07270-0694:256
GAMEWELL-FCI
12 Clintonville Road, Northford, CT 06472-1610 USA • Tel: (203) 484-7161 • Fax: (203) 484-7118
Specifications are for information only, are not intended for installation purposes, and are subject to change without notice. No responsibility is assumed by Gamewell-FCI for their use.
©2008 by Honeywell International Inc. All rights reserved.
www.gamewell-fci.com
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