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

9020-0620 Rev. C3 page 1 of 2

ATD-L2F, ATD-RL2F

Addressable Thermal Sensor

Description

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.

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.

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.

Mount the base on a box which is at least 1.5" (3.8 cm)

deep. Suitable mounting base boxes include:

• 4.0" (10.2 cm) square box.

• 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.

• 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: 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.

International Inc.

Features

• Sleek, low-profile design

• Visual rotary switch addressing

• Built-in functional test switch activated by an external

magnet

• Bicolor LEDs flash green whenever the sensor is

addressed, and light steadily red on alarm*

• Optional relay, isolator, or sounder bases

• Low standby current

• Addressable communication

• Stable communication technique with noise immunity

• Optional remote, single-gang LED accessory

(RA-400Z)

• Suitable for installation in ducts

Note: *Only the red LED is operative in panels that do not operate

ATD-L2F

An ISO 9000-2000 Company

APPROVED

FM

3023594

SIGNALING

07270-0694:256

S2332

MEA

Approved

219-02-E Vol.VI