System Sensor 1400 - Manual (Page 2)

D400-07-00 2 I56-279-05R
Mounting
Each 1400 detector is supplied with a mounting bracket kit
that permits the detector to be mounted:
1. Directly to a 3
1 ⁄
2
inch or 4 inch octagonal, 1 1 ⁄
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.
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
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-
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.
S0139-00
TAMPER
RESISTANT
TAB
TO MAKE DETECTOR TAMPER RESISTANT,
BREAK OFF TAB EXTENSION
AT SCRIBED LINE
Figure 2. Model 1400 detector mounting bracket:
Figure 1. Surface mounting of Model 1400 detector
on 3-1/2 and 4 inch octagonal box:
S0140-00