System Sensor B404B User Manual

Page 2

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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
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 can be made tamper resistant so it cannot be removed
without the use of a tool. To make the base tamper resistant, simply break off
the tab on the base (see Figure 4A), before installing the detector.

1

2

3

4

5

8 9

10

11

12

13

14

6

7

(+)

(–)

1

2

3

4

5

8 9

10

11

12

13

14

6

7

(+)

(–)

EOL

BLACK LEADS

TRANSFORMER

PRIMARY

REMOTE

ANNUNCIATOR

RELEASING

DEVICE

REMOTE

ANNUNCIATOR

RELEASING

DEVICE

120

VAC

120

VAC

CONTROL

PANEL

CONTROL

PANEL

ALARM INITIATION LOOP

EOL

SPECIFIED BY PANEL

MANUFACTURER

NOTE: ABOVE DIAGRAM SHOWS NFPA REQUIRED WIRING OF SUPERVISED SYSTEMS.

SCHEMATIC SHOWN BELOW FOR REFERENCE.

SUPERVISORY

RELAY

SUPERVISORY

RELAY

ALARM

RELAY

ALARM

RELAY

fIgURE 3. TypICAL WIRINg DIAgRAM fOR 120VAC DETECTOR SySTEMS:

C0564-00

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

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

Please refer to insert for the Limitations of Fire Alarm Systems

D450-04-00

2

I56-0375-006R

©2009 System Sensor

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,

ThREE-yEAR LIMITED WARRANTy

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.

To remove the detector from the base after it has been made tamper resistant,
insert a small screwdriver (please 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.

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