System Sensor B114LP User manual

D150-02-00 1 I56-598-03R
B114LP Plug-in Detector Base
For use with the following smoke detectors:
IN US: 1151, 2151
IN CANADA: 1151A, 2151A
IN EUROPE: 1151E, 2151E
INSTALLATION AND MAINTENANCE INSTRUCTIONS
3825 Ohio Avenue
St. Charles, Illinois 60174
1-800-SENSOR2, FAX: [phone]
Before Installing
Please thoroughly read the System Sensor manual I56-407,
Guide for Proper Use of System Smoke Detectors. This man-
ual 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.)
NOTICE: This manual should be left with the owner/user
of this equipment.
IMPORTANT: The detector used with this base must be
tested and maintained regularly following NFPA 72 require-
ments. The detector used with this base should be cleaned
at least once a year.
Specifications
Base Diameter: 6.2 inches (157 mm)
Base Height: 0.95 inches (24 mm)
Weight: 0.6 lb. (274 g)
Mounting: 4-inch square box with or without plaster ring. Min. depth–1.5 inches
4-inch octagon box. Min. depth–1.5 inches
Operating Temperature Range: 0° to 49°C (32° to 120°F)
Operating Humidity Range: 10% to 93% Relative Humidity, Noncondensing
Electrical Ratings - includes base and detector
System Voltage: 120 VAC, 60 Hz
Relay Contact Ratings
Resistive or Inductive (60% power factor) load
Form A: 2.0A @ 30VAC/DC
Form C: 2.0A @ 30VAC/DC
0.6A @ 110VDC
1.0A @ 125VAC
Start-up Time: 36.0 Seconds maximum
(After 60 second reset)
General Description
The model B114LP detector base is designed for use with
System Sensor model 2151 photoelectronic and 1151 ioniza-
tion 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 asso-
ciated smoke detector is in the alarm state.
Mounting
The detector base mounts directly to 3-1/2 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.
See Figure 2. Position the decorative ring around the base
and rotate it in either direction until the ring snaps into
place.

D150-02-00 2 I56-598-03R
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 cor-
rectly 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.
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 jurisdic-
tion, using the proper wire size. 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.
For signal wiring (the wiring between interconnected detec-
tors), 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 rec-
ommended to minimize the effects of electrical interference.
Wiring Instructions
NOTE: Refer the manufacturer’s instructions for releasing
device wiring.
NOTE: To ensure that electrical connections are super-
vised, 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" (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.
SNAP ON
DECORATIVE
RING
SCREWS (NOT
SUPPLIED)
DETECTOR
BASE
BOX (NOT
SUPPLIED)
SHORTING
SPRING
Figure 2. Mounting base to box:
Base Terminals
No. Function
1Remote Annunciator (+)
2 Not used
3 Not used
4 Remote Annunciator (–)
5 Not used
6 N.O. Supervisory Relay
7 N.O Form A Contacts
8 N.O. Alarm Relay
9 N.O. Form A
10 C. Initiation
11 C. Contacts
12 N.O. Alarm Relay
13 N.C. Form C
14 C. Auxiliary Contacts
Figure 1. Terminal layout:
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D150-02-00 3 I56-598-03R
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 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 disengages 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.
1
2
34
5
89101112
13
14
REMOTE
ANNUNCIATOR
ALARM INITIATION LOOP
RELEASING
DEVICE
–
67
CONTROL
PANEL
BLACK LEADS
TRANSFORMER
PRIMARY
120
VAC
(+)
(–)
1
2
34
5
89101112
13
14
REMOTE
ANNUNCIATOR
RELEASING
DEVICE
–
67
120
VAC
(+)
(–)
EOL
SPECIFIED
BY PANEL
MANUFACTURER
CONTROL
PANEL
SUPERVISORY
RELAY
ALARM
RELAY
SUPERVISORY
RELAY
ALARM
RELAY
EOL
SPECIFIED
BY PANEL
MANUFACTURER
NOTE: ABOVE DIAGRAM SHOWS NFPA REQUIRED WIRING OF SUPERVISED
SYSTEMS. SCHEMATIC SHOWN BELOW FOR REFERENCE.
Figure 3. Wiring diagram for a typical 120VAC detector system:
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 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 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.
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.
Figure 4A. Activating tamper-resistance feature: Figure 4B. Removing the detector head from base:

D150-02-00 4 I56-598-03R
© 2001 System Sensor
Three-Year Limited Warranty
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, represen-
tative, 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, 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 consequen-
tial 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 limita-
tion 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