System Sensor Model 1400 detector mounting bracket, Tamper-resistantFeature, Mounting

Figure 1. Surface mounting of Model 1400 detector on 3-1/2 and 4 inch octagonal box:

S0139-00

Figure 2. Model 1400 detector mounting bracket:

TAMPER

RESISTANT

TAB

TO MAKE DETECTOR TAMPER RESISTANT,

BREAK OFF TAB EXTENSION

Smoke detectors and alarm system control panels have specifications for allowable loop resistance. Consult the control panel manufacturer’s specifications for the total loop resistance allowed for the control panel being used before wiring the detector loops.

Begin electrical connections by stripping about 3⁄8″ insula- tion from the end of the wire. Then, slide the bare end of the wire under the clamping plate and tighten the clamping plate screw. A wiring diagram for a typical 2-wire detector system is shown in Figure 3.

NOTE: Break the wire at each terminal to ensure that the connections are supervised. 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 which contains a current list of UL-listed control units and detectors. A copy of this list is available from System Sensor upon request.

Tamper-resistant Feature

This detector includes a tamper-resistant feature that effec- tively prevents removal of the detector without the use of a tool. To make the detector tamper-resistant, break off

AT SCRIBED LINE

Mounting

S0140-00

the smaller tab at the scribed line on the tamper resistant tab, on the detector mounting bracket (see Figure 2), then install the detector. To remove the detector from the bracket once it has been made tamper resistant, use a small screw-

Each 1400 detector is supplied with a mounting bracket kit that permits the detector to be mounted:

1.Directly to a 31⁄2 inch or 4 inch octagonal, 11⁄2 inch deep electrical box, or

2.To a 4 inch square electrical box by using a plaster ring with the supplied mounting bracket kit.

Installation Wiring Guidelines

All wiring must be installed in compliance with the National Electrical Code and all applicable local codes and any special requirements of the authority having jurisdic- tion, using the proper wire size. The conductors used to connect smoke detectors to control panels and accessory devices should be color-coded to reduce the likelihood of wiring errors. Improper connections can prevent a system from responding properly in the event of a fire.

For signal wiring (the wiring between interconnected detectors), it is recommended that the wire be no smaller than AWG 18. However, the screws and clamping plate can accommodate wire sizes up to AWG 12. The use of twisted pair wiring for the power (+ and –) loop is recommended to minimize the effects of electrical interference.

driver to depress the tamper-resistant tab located in the slot on the mounting bracket and turn the detector coun- terclockwise for removal.

Installation

WARNING

Disconnect the power to the alarm system control unit before installing detectors.

1.Wire the detector following the installation guidelines.

2.Line up arrows on the detector with the arrows on the mounting bracket.

3.Rotate the detector clockwise until it clicks into place.

4.After all detectors have been installed, apply power to the control unit.

5.Test the detector as described under TESTING.

6.Reset the detector at the system control panel.

7.Notify the proper authorities that the system is in opera- tion.

D400-07-00 2 I56-279-05R