2400AT Ver la hoja de datos (PDF) - Systemsensor advanced ideas.

Número de pieza

componentes Descripción

Fabricante

2400AT

Direct Wire Photoelectronic with Fixed Heat Smoke Detectors

Systemsensor advanced ideas. 

Figure 1. Flush mounting of detector on 4-inch

octagonal box:

Figure 2. Detector mounting bracket:

TAMPER

RESISTANT

TAB

A78-1394-00

Installation Wiring Guidelines

All wiring must comply with the National Electrical Code

and the applicable local codes, and any special require-

ments of the authority having jurisdiction, using the proper

wire gauges. The conductors used to connect smoke detec-

tors to control panels and accessory devices should be

color-coded to reduce the likelihood of wiring errors. Im-

proper connections can prevent a system from responding

properly in the event of a fire.

For signal wiring (wiring between interconnected detec-

tors), wiring no smaller than AWG 18 is recommended. The

clamping plates in the base can accept wire sizes up to

AWG 12. For best system performance, the power (+and –)

loop wires should be twisted pair and installed in separate

grounded conduit or shielded cable to protect the loop from

extraneous electrical interference. If a cable shield is pro-

vided, the shield connection to and from the detector must

be made continuous by using wire nuts, crimping, or sol-

dering, as appropriate for a reliable connection.

Wire connections are made by stripping about 3/8” insula-

tion from the end of the wire, sliding the bare end of the

wire under the clamping plate, and tightening the clamping

plate screw. Do NOT loop the wire under the terminals.

System Sensor smoke detectors are marked with a compat-

ibility identifier located as the last digit of a five-digit code

stamped on the back of the product. Connect detectors only

to compatible control units as indicated in System Sensor’s

compatibility chart. This chart contains a current list of UL-

TO MAKE DETECTOR TAMPER RESISTANT,

BREAK OFF TAB EXTENSION

AT SCRIBED LINE

A78-534-00

listed control units and detector combinations and is avail-

able from System Sensor upon request.

CAUTION

Dust covers provide limited protection against airborne

dust particles during shipping. Dust covers MUST be re-

moved before the smoke detectors can sense smoke. Re-

move sensors before beginning remodeling or heavy

construction.

Tamper-resistance Feature

The Tamper Resistant Tab, in the detector mounting

bracket, can make the detector tamper-resistant by making

it necessary to use a pocket screwdriver, or similar tool, to

detach the detector from the bracket.

To make the detector tamper-resistant, use needle-nose pli-

ers to break the smaller tab at the scribed line on the

Tamper Resistant Tab. Figure 2 shows the location of this

tab on the detector mounting bracket.

To remove a detector from the bracket after it has been

made tamper-resistant, use a pocket screwdriver, or other

similar tool, to depress the Tamper Resistant Tab, in the slot

on the mounting bracket, and rotate the detector counter-

clockwise.

Testing

NOTE: Before testing, notify the proper authorities that the

smoke detector system is undergoing maintenance

and, therefore, the system will be temporarily out

of service. Disable the zone or system undergoing

maintenance to prevent unwanted alarms.

Figure 3. Wiring diagram for 2400AT detector with two-wire control panel:

D400-03-00

2

I56-287-02

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