System Sensor B501A, B501-WHITE, B501-BL, B501-IV Installation And Maintenance Instructions Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

TAMPER PROOF

CAUTION: DO NOT LOOP WIRE

(+)

6581 Kitimat Road, Unit 6, Mississauga, Ontario L5N-3T5

B501A Plug-in Detector Base

SPECIFICATIONS

Base Diameter: 4.0 inches (10.2cm)
Base Height: .74 inches (18.8 mm)
Operating Temperature: Refer to applicable sensor Operating Temperature Range using the Base/Sensor Cross Reference Chart at
www.systemsensor.com

Electrical Ratings – includes base and detector

Operating Voltage: 15 to 32 VDC
Standby Current: 150µA

BEFORE INSTALLING

Please read the System Smoke Detectors Application Guide, which provides
detailed information on detector spacing, placement, zoning, wiring, and spe­cial applications. Copies of this application guide are available from System
Sensor. CAN/ULC-S524 guidelines should be observed.

NOTICE: This manual should be left with the owner/user of this equipment.

IMPORTANT: The detector used with this base must be tested and main-

tained regularly following CAN/ULC-S536 requirements. The detector should
be cleaned at least once a year.

GENERAL DESCRIPTION

The B501A is a plug in detector base intended for use in an intelligent system
with screw terminals provided for power (+) and (–), and remote annunciator
connections. Communication takes place over the power (+) and (–) lines.

BASE TERMINALS
No. Function

1 Power (–), Remote Annunciator (–)

2 Power (+)

3 Remote Annunciator (+)

FIGURE 1. TERMINAL LAYOUT:

TERMINAL 2

TERMINAL 3

TAB

TERMINAL 1

For signal wiring (the wiring between interconnected detectors and modules),
it is recommended that the wiring be no smaller than 18 AWG (0.823 square
mm). Wire sizes up to 12 AWG (3.31 square mm) may be used with the base.

Alarm system control panels have specifications for allowable loop resis­tance. Consult the control panel specifications for the total loop resistance
allowed before wiring the detector loops.

Make wiring connections by stripping about 3⁄8 inch (10 mm) of insulation from
the wire end (use strip gauge molded in base). Then slide the wire under the
clamping plate and tighten the clamping plate screw. Do not loop the wire
under the clamping plate. (see Figure 3)

Check the zone wiring of all bases in the system before installing the detec­tors. This includes checking the wiring for continuity, correct polarity, ground
fault testing and performing a dielectric test.

The base includes an area for recording the zone, address, and type of de­tector to be installed at that location. This information is useful for setting the
detector head address and for verification of the detector type required for
that location.

Once all detector bases have been wired and mounted, and the loop wiring
has been checked, the detector heads may be installed in the bases.

FIGURE 2. TYPICAL WIRING DIAGRAM FOR 2-WIRE LOOP:

REMOTE

ANNUNCIATOR

+ -

(+)

2

3

1

1-800-SENSOR2, FAX: [phone]

www.systemsensor.ca

UNDER TERMINAL 1 OR 2.
BREAK WIRE RUN TO PROVIDE
SUPERVISION OF CONNECTIONS.

2

3

1

3

2

1

MOUNTING

This detector base mounts directly to 50 mm, 60 mm, and 70 mm centers.

INSTALLATION AND WIRING GUIDELINES (SEE FIGURE 2)

All wiring must be installed in compliance with all applicable local codes and
any special requirements of the local authority having jurisdiction. Proper wire
gauges should be used. 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.

SS-450-004 1 I56-1042-004

C0131-01

(–)

CONTROL PANEL

(–)

ULC LISTED COMPATIBLE

FIGURE 3.:

CLASS A OPTIONAL WIRING

C0133-01

C0473-00

TAMPER-RESIST FEATURE

SCREWDRIVER TO PRESS PLASTIC LEVER
IN DIRECTION OF ARROW

STRIPPED WIRE

WIRE WITH SPADE LUG

NOTE: Do not use the tamper-resist feature if the removal tool is to be used.

The detector base includes a tamper-resist feature that prevents removal of
the detector without using a small screwdriver or similar tool.

To activate this feature, use needle-nose pliers to break the tab on the detec­tor base as shown in Figure 4A. Then, install the detector.

To remove the detector from the base once the tamper-resist feature has
been activated, insert a small-bladed screwdriver into the small hole on the
side of the base and push the plastic lever away from the detector head (see
Figure 4B). This allows the detector to be rotated counterclockwise for re­moval.

The tamper-resist feature can be defeated by breaking and removing the
plastic lever from the base. However, this prevents the feature from being
used again.

FIGURE 4A. ACTIVATING TAMPER-RESIST FEATURE:

PLASTIC LEVER

BREAK TAB AT DOTTED LINE BY
TWISTING TOWARD CENTER OF BASE

C0132-00

FIGURE 4B. REMOVING DETECTOR HEAD FROM BASE:

USE SMALL-BLADED SCREWDRIVER TO PRESS
PLASTIC LEVER IN DIRECTION OF ARROW

FIGURE 5. CONNECTION TO REMOTE ANNUNCIATOR TERMINAL:

C0116-00

REMOTE ANNUNCIATOR (RA400ZA/RA100ZA)

The remote annunciator is connected between terminals 1 and 3 using the
spade lug terminal packed with the remote annunciator. The spade lug termi­nal is connected to the base terminal as shown in Figure 5.

It is not acceptable to have three stripped wires under the same wiring termi­nal unless they are separated by a washer or equivalent means. The spade
lug supplied with the model RA400ZA/RA100ZA is considered an equivalent
means. See Figure 2 for proper installation.

Please refer to Insert for the Limitations of Fire Alarm Systems

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

SS-450-004 2 I56-1042-004
©2011 System Sensor

C0132-01

THREE-YEAR LIMITED WARRANTY

to: System Sensor, Repair Department, RA #__________, 6581 Kitimat Road, Unit 6,
Mississauga, Ontario L5N-3T5. 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.