System Sensor B114Lp Users Manual

B114LP to the manual 294101c0-f111-44c9-b59d-0d387705d7f7

2015-02-02

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I56-0598-004R

INSTALLATION AND MAINTENANCE INSTRUCTIONS

B114LP Plug-in Detector Base

3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
www.systemsensor.com

For use with the following smoke detectors: US - 1151, 2151, 2151T;
CANADA - 1151A, 2151A, 2151TA; EUROPE - 1151E, 2151E
Specifications
Base Diameter:
Base Height:
Weight:
Mounting:

6.2 in (157 mm)
0.95 in (24 mm)
0.6 lb (274 g)
4˝ square box with or without plaster ring, minimum depth 1.5˝; 4˝ octagon box, minimum depth 1.5˝;
31⁄2˝ octagon box, minimum depth 1.5˝; 31⁄2˝ octagon box, minimum depth 1.5˝
Operating Temperature Range:
0°C to 49°C (32°F to 120°F)
Operating Humidity Range:
10% to 93% Relative Humidity Non-condensing
Electrical Ratings (includes base and detector)
System Voltage:
120 VAC, 60 Hz
Relay Contact Ratings Resistive Load:
Form A — 2.0A @ 30VAC/DC; Form C — 2.0A @ 30VAC/DC, 1.0A @ 125VAC
(If used, the RA400 Remote Annunciator and RTC operates within the specified detector system voltage)
Start-up Time (after 60 second reset): 36.0 seconds maximum
nect smoke detectors to control panels and accessory devices should be colorcoded to reduce the likelihood of wiring errors. Improper connections can
prevent a system from responding properly in the event of a fire.

Before Installing
Please thoroughly read the System Sensor manual I56-407, Guide for Proper
Use of System Smoke Detectors. This manual provides detailed information on
detector spacing, placement, zoning, wiring, and special applications, and is
available at no charge from System Sensor. (For installation in Canada, refer to
CAN/ULC-S524, Standard for the Installation of Fire Alarm Systems and CEC
Part 1, Sec. 32.)

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 in the base 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.

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

Figure 1. Terminal layout:

IMPORTANT: The detector used with this base must be tested and maintained
regularly following NFPA 72 requirements. The detector used with this base
should be cleaned at least once a year.

24VDC/24VAC
TERMINALS

General Description
The model B114LP detector base is designed for use with System Sensor model
2151 photoelectronic and 1151 ionization detector heads. This four-wire base is
equipped with screw terminals for the connection of power, ground, relay connections, and an optional RA400Z remote annunciator. It also includes a resistor that
limits current when the associated smoke detector is in the alarm state.

BASE
TERMINALS

STRIP GAUGE

2
3

8
9

Mounting
The detector base mounts directly to 31/2-inch and 4-inch octagon boxes and
4-inch square boxes, with or without plaster rings. To mount the base, remove
the decorative ring by rotating it in either direction to unhook the snaps before
separating the ring from the base. Use the screws supplied with the junction
box to attach the base to the box through the appropriate slots in the base.

10
11

TAMPER
RESISTANT TAB
12

13 14

C1025-00

Position the decorative ring around the base and rotate it in either direction
until the ring snaps into place (see Figure 2).

Figure 2. Mounting base to box:
SNAP ON
DECORATIVE
RING

BASE TERMINALS
NO.

FUNCTION

NO.

Remote Annunciator (+)

N.O.

Alarm Relay

Test Coil (+)

N.O.

Form A

Not Used

Initiation

Remote Annunciator (–)

Contacts

RTC (–)

N.O.

Alarm Relay

FUNCTION

Supervisory Relay

N.C.

Form C

N.O.

Form A Contacts

Auxiliary Contacts

SHORTING
SPRING

SCREWS

(NOT SUPPLIED)

DETECTOR
BASE

Installation Guidelines
Allowable loop resistance is an important specification for control panels as
well as for smoke detectors and their bases. The alarm system cannot be expected to operate correctly if system components have incompatible allowable
loop resistances. Therefore, before beginning installation, refer to the control
panel manufacturer’s loop resistance specification to ensure that it is listed as
compatible with the System Sensor base and smoke detector being installed.

BOX

(NOT SUPPLIED)

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 jurisdiction, using the proper wire size. The conductors used to conD150-02-00

SHORTING
SPRING

C0503-00

I56-0598-004R

Figure 3. Wiring diagram for a typical 120VAC detector system:
W
N APA451
–

BLACK LEADS
TRANSFORMER
PRIMARY

RELEASING
DEVICE

W
N APA451
–

BLACK LEADS
TRANSFORMER
PRIMARY

2
14

RELEASING
DEVICE

EOL

12
6

120
VAC

CONTROL
PANEL

120
VAC

ALARM INITIATION LOOP

SPECIFIED BY PANEL
MANUFACTURER

NOTE: ABOVE DIAGRAM SHOWS NFPA REQUIRED WIRING OF SUPERVISED SYSTEMS.
SCHEMATIC SHOWN BELOW FOR REFERENCE.

SUPERVISORY
RELAY
6

CONTROL
PANEL

ALARM
RELAY

SUPERVISORY
RELAY

10, 11

ALARM
RELAY

8, 9

EOL

10, 11
8, 9

C1040-00

Wiring Instructions
NOTE: Refer the manufacturer’s instructions for releasing device wiring.

This detector base can be made tamper resistant so the detector cannot be detached 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 detector mounting bracket (see Figure 4A), before installing the detector.

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 a wire under the clamp plate on each side of
the terminal screw and tighten the screw.

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 4A. Activating tamper-resistance feature:

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 convenient to do this. After the detector base is wired and attached to the electrical 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.

PLASTIC LEVER

USE SMA
PLASTIC

After all detector bases have been mounted, wired, and the wiring checked,
install the detector heads. The shorting spring in the base automatically disengages when the detector head is removed from the base. DO NOT remove the
LEVER
shorting spring since it reengages as the detector headPLASTIC
is turned
into the base,
completing the circuit.

BREAK TAB AT DOTTED LINE BY
TWISTING TOWARD CENTER OF BASE

C0130-00

Figure 4B. Removing the detector head from base:
USE SMALL-BLADED SCREWDRIVER TO PUSH
PLASTIC LEVER IN DIRECTION OF ARROW

Tamper-resistance Feature
NOTE: Do NOT use the tamper-resistance feature if theBREAK
System
XR2
TAB Sensor
AT DOTTED
LINE BY
TWISTING TOWARD CENTER OF BASE
Removal Tool will be used to remove detectors from the base.

C0130-00

Please refer to insert for the Limitations of Fire Alarm Systems
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.

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 to: System Sensor,

D150-02-00

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System Sensor B114Lp Users Manual

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