System Sensor B116LP User manual

D150-01-00 1 I56-599-03R
B116LP 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, which pro-
vides detailed information on detector spacing, placement,
zoning, wiring, and special applications. Copies of this
manual are available at no charge from System Sensor. (For
installation in Canada, please refer to CAN4-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
Specifications
Base Diameter: 6.2 inches (157 mm)
Base Height: 0.95 inches (24 mm)
Weight: 0.3 lb. (130 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
3-1/2 inch-octagon box. Min. Depth–1.5 inches
50 mm box
60 mm box
70 mm box
Operating Temperature Range: 0° to +49°C (32° to 120°F) US and Canadian Installations
10°to 60°C (14° to 140°F) European Installations
Operating Humidity Range: 10% to 93% Relative Humidity
Electrical Ratings – includes base and detector
System Voltage: 24 VDC
Maximum Ripple Voltage: 4 Volts peak to peak
Start-up Capacitance: 0.02µF Maximum
Standby Ratings: 15 VDC Minimum
35 VDC Maximum
120 µA Maximum
Alarm Ratings: 8 V Minimum at 16 mA
12 V Maximum at 100 mA
(Alarm current MUST be limited to 100 mA maximum by the control panel.)
Relay Contact Ratings:
Resistive or Inductive (60% power factor) Load
Form C:* 2.0A @ 30 VAC/DC
0.6A @ 110 VDC
1.0A @ 125 VAC
Reset Voltage: 1.4 VDC Minimum
Reset Time: 0.3 Seconds Maximum
Start-up Time: 34.0 Seconds Maximum
*For Canadian installations relay contact ratings are 2.0A @ 30 VAC/DC.
tested and maintained regularly following NFPA 72 require-
ments. The detector used with this base should be cleaned
at least once a year.
General Description
The model B116LP plug-in detector base is used with
System Sensor model 1151, 1151A, and 1151E ionization
detector heads and model 2151, 2151A, and 2151E photo-
electronic detector heads. The capability of plugging these
detectors into a variety of special bases makes them more
versatile than equivalent direct-wired models. Refer to the
System Sensor catalog for other available plug-in detector
bases.

D150-01-00 2 I56-599-03R
The B116LP base is intended for use in 2-wire systems,
with screw terminals provided for power and relay contact
connections. These bases MUST be current limited by the
system control panel in the alarm state.
Mounting
This detector base mounts directly to 3-1/2-inch and 4-
inch octagon boxes, and 4-inch square boxes (with or with-
out plaster rings). To mount, remove decorative ring by
turning it in either direction to unhook the snaps, then sep-
arate the ring from the base. Install the base to the box
using the screws supplied with the junction box and the
appropriate mounting slots in the base. Place decorative
ring onto base, then turn in either direction until the ring
snaps in place (see Figure 1).
Installation Guidelines
All wiring must be installed in compliance with the
National Electrical Code and the local codes having
jurISdiction. Proper wire gauges should be used. The con-
ductors used to connect smoke detectors to control panels
and accessory devices should be color-coded to prevent
wiring mistakes. Improper connections can prevent a sys-
tem from responding properly in the event of a fire.
For signal wiring (the wiring between inter-connected
detectors), it is recommended that the wire be no smaller
than 18 gauge. Wire sizes up to 12 gauge may be used with
the base. For best system performance, the power (+) and
(–) loop wires should be twisted pair and installed in sep-
arate grounded conduit to protect the loop from extraneous
electrical interference.
Smoke detectors and alarm system control panels have
specifications for allowable loop resistance. Consult the
control panel manufacturer’s specifications for the total
loop resistance allowed for the particular model control
panel being used before wiring the detector loops.
Locate installations where normal ambient temperatures do
not exceed 100°F.
Wiring Instructions
For system supervision — For terminals 2, 3, and 5 do not
use looped wire under terminals. Break wire run to provide
system supervision of connections.
Wire connections are made by simply stripping insulation
from the end of the wire, sliding the bare end of the wire
under the clamping plate, and tightening the clamping
plate screw. Use the strip gauges molded into the inside
CAUTION
and underside of the base for ease of wiring to terminals 1
through 5, and to terminals 12 through 14, respectively.
System Sensor smoke detectors and mounting bases are
marked with a compatibility identifier located as the last
digit of a five digit code stamped on the back of the prod-
uct. Connect detectors/mounting bases only to compatible
control units as indicated in System Sensor’s compatibility
chart which contains a current list of UL listed control units
and detector head/base combinations. A copy of this list is
available from System Sensor upon request.
The zone wiring of the detector base should be checked
before the detector heads are installed in them. To make
this possible, this base contains a special spring-type short-
ing jumper. After a detector base is properly wired and
mounted on an electrical box, make sure that the jumper
spring is in contact with the base of Terminal 3. This tem-
porary connection shorts the positive-in and positive-out
leads and permits the wiring of the loop to be checked for
continuity.
SNAP ON
DECORATIVE
RING
SCREWS (NOT
SUPPLIED)
DETECTOR
BASE
BOX (NOT
SUPPLIED)
SHORTING
SPRING
Figure 1. Mounting base to box:
A78-1175-01

CAUTION
Once all the detector bases have been wired and mounted,
and the loop wiring has been checked, the detector heads
may be installed in the bases. The shorting spring in the
base will disengage automatically when the detector head
is removed from the base. DO NOT remove the shorting
spring since it reengages as the detector head is fully
turned into the base, completing the circuit.
Tamper-resistance Feature
Do NOT use the tamper-resistance feature if the XR2
Removal Tool will be used.
This detector base includes a tamper-resistance feature that
prevents removal of the detector without the use of a tool.
To activate this feature, break off the tab on the detector
base shown in Figure 3A, then install the detector. To
D150-01-00 3 I56-599-03R
Figure 2. Typical wiring diagram:
(+) POWER LOOP
2-WIRE CONTROL PANEL
(–) POWER LOOP
3
2
4
5
11213
14 COM CONTACT
N.C. AUXILIARY
N.O. FORM C
E
O
L
CLASS A OPTIONAL WIRING
A78-1577-00
remove the detector from the base once the tamper-resist-
ance feature has been activated, place a small-bladed
screwdriver into the small hole on the side of the base and
push plastic lever away from the detector head (see Figure
3B). This will allow the detector to be rotated counter-
clockwise for removal.
NOTE: Head removal after the tamper-resistance feature
has been activated requires removal of the decora-
tive ring.
The tamper-resistance feature can be defeated by breaking
and removing the plastic lever from the base, however this
prevents using the feature again.
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.
A78-1175-03
Figure 3B. Removing detector head from base:Figure 3A. Activating tamper-resistance feature:

D150-01-00 4 I56-599-03R
© 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