APA451
RELEASING
DEVICE
1
6
7
8 9
10
11
12
13
14
2
3
4
5
APA451
RELEASING
DEVICE
1
6
7
8 9
10
11
12
13
14
2
3
4
5
W
N
–
W
N
–
CONTROL
PANEL
ALARM INITIATION LOOP
NOTE:
ABOVE DIAGRAM SHOWS NFPA REQUIRED WIRING OF SUPERVISED SYSTEMS.
SCHEMATIC SHOWN BELOW FOR REFERENCE.
EOL
CONTROL
PANEL
SPECIFIED BY PANEL
MANUFACTURER
SUPERVISORY
RELAY
SUPERVISORY
RELAY
ALARM
RELAY
ALARM
RELAY
EOL
6
7
10, 11
8, 9
10, 11
8, 9
6
7
24VDC/24VAC
TERMINALS
24VDC/24VAC
TERMINALS
FIGURE 3. TYPICAL WIRING DIAGRAM FOR 24VAC RMS/DC DETECTOR SYSTEMS:
C0668-00
WIRING INSTRUCTIONS
NOTE:
Refer to the manufacturer’s instructions for releasing device wiring.
NOTE:
To ensure that electrical connections are supervised, do NOT loop
wires under terminals 8, 9, 10, and 11. Cut the wire at each terminal.
To make electrical connections, strip approximately
3
/
8
inch (1 cm) insulation
from the end of each wire, slide the bare wire end under the clamping plate,
and tighten the clamping plate screw. Use the strip gauges molded into the
inside and underside of the base for ease of wiring to terminals 1 and 4, and
to terminals 6 through 14, respectively.
The zone wiring of the detector base should be checked before installing the
smoke detector heads. The base contains a built-in shorting spring to make
this possible. After the detector base is wired and mounted to an electrical
box, position the shorting spring against terminal 3. This temporary connec-
tion energizes the supervisory relay and permits the wiring of the loop to be
checked for continuity.
After all detector bases have been mounted, wired, and the wiring checked,
install the detector heads. The shorting spring in the base automatically disen-
gages when the detector head is removed from the base. DO NOT remove the
shorting spring since it reengages as the detector head is turned into the base,
completing the circuit
TAMPER-RESISTANCE FEATURE
This detector base also includes an optional tamper-resistant feature that
when activated prevents removal of the detector without the use of a tool.
System Sensor warrants its enclosed smoke detector base to be free from defects in mate-
rials and workmanship under normal use and service for a period of three years from date
of manufacture. System Sensor makes no other express warranty for this smoke detector
base. No agent, representative, dealer, or employee of the Company has the authority to
increase or alter the obligations or limitations of this Warranty. The Company’s obligation
of this Warranty shall be limited to the repair or replacement of any part of the smoke
detector base which is found to be defective in materials or workmanship under normal
use and service during the three year period commencing with the date of manufacture.
After phoning System Sensor’s toll free number 800-SENSOR2 (736-7672) for a Return
Authorization number, send defective units postage prepaid to: Honeywell, 12220 Rojas
FIGURE 4A. ACTIVATING TAMPER-RESISTANCE FEATURE
FIGURE 4B. REMOVING DETECTOR HEAD FROM BASE
PLASTIC LEVER
BREAK TAB AT DOTTED LINE BY
TWISTING TOWARD CENTER OF BASE
USE SMALL-BLADED SCREWDRIVER TO PUSH
PLASTIC LEVER IN DIRECTION OF ARROW
C0130-00
THREE-YEAR LIMITED WARRANTY
Drive, Suite 700, El Paso TX 79936, USA. Please include a note describing the malfunc-
tion and suspected cause of failure. The Company shall not be obligated to repair or
replace units which are found to be defective because of damage, unreasonable use,
modifications, or alterations occurring after the date of manufacture. In no case shall the
Company be liable for any consequential or incidental damages for breach of this or any
other Warranty, expressed or implied whatsoever, even if the loss or damage is caused by
the Company’s negligence or fault. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation or exclusion may not apply
to you. This Warranty gives you specific legal rights, and you may also have other rights
which vary from state to state.
PLASTIC LEVER
BREAK TAB AT DOTTED LINE BY
TWISTING TOWARD CENTER OF BASE
USE SMALL-BLADED SCREWDRIVER TO PUSH
PLASTIC LEVER IN DIRECTION OF ARROW
C0130-00
To make the base tamper resistant, simply break off the tab on the base (see
Figure 4A
), before installing the detector.
To remove the detector from the base after it has been made tamper resistant,
insert a small screwdriver (see
Figure 4B
) into the small hole and press the
plastic lever away from the detector. Rotate the detector counterclockwise and
remove.
NOTE:
Head removal after activating the tamper-resistance feature first re-
quires removal of the decorative ring.
2
I56-2169-002R
©2016 System Sensor. 06-10
