WIRINg INSTRUCTIONS

NOTE: Refer 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.

from the end of each wire. Slide a wire under the clamp plate on each side of

the terminal screw and tighten the screw.

If the base is being installed in a zoned system, check the zone wiring before

installing the smoke detector head. The built-in shorting spring makes it con-

venient to do this. After the detector base is wired and attached to the electri-

cal box, position the shorting spring against terminal 3. Use the slot in the

retaining clip to hold the spring against the terminal, as shown in Figure 1.

This shorts the negative-in and negative-out leads so that loop wiring can be

tested for continuity. Do NOT remove the shorting spring from the base when

continuity tests are completed.

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

NOTE: Do NOT use the tamper-resistance feature if the System Sensor XR2

Removal Tool will be used to remove detectors from the base.

This detector base can be made tamper resistant so the detector cannot be de-

tached without the use of a tool. To make the base tamper resistant, break off

the smaller tab at the scribed line on the tamper-resistance tab, on the detec-

tor mounting bracket (see Figure 4A), before installing the detector.

To remove the detector from the base after it has been made tamper resistant,

remove the decorative ring by rotating it in either direction and pulling it away

from the base. Then, insert a small screwdriver (Figure 4B) into the notch

and press the plastic lever toward the mounting surface. Rotate the detector

counterclockwise and remove.

fIgURE 3. WIRINg DIAgRAM fOR A TyPICAL 120VAC DETECTOR SySTEM:

fIgURE 4A. ACTIVATINg TAMPER-RESISTANCE fEATURE:

fIgURE 4B. REMOVINg ThE DETECTOR hEAD fROM BASE:

C1040-00

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

BLACK LEADS

TRANSFORMER

PRIMARY

120

VAC

BLACK LEADS

TRANSFORMER

PRIMARY

120

VAC

C0130-00

D150-02-00

2

I56-0598-004R

©2007 System Sensor

ThREE-yEAR LIMITED WARRANTy

System Sensor warrants its enclosed smoke detector base to be free from defects in ma-

terials 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 au-

thority 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 manu-

facture. After phoning System Sensor’s toll free number 800-SENSOR2 (736-7672) for a

Return Authorization number, send defective units postage prepaid to: System Sensor,

Repair Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174. Please

include a note describing the malfunction 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.

Please refer to insert for the Limitations of Fire Alarm Systems

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

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