Pittway System Sensor B501 User manual

D550-02-00 1 I56-357-04
B501 Plug-in Detector Base
A Division of Pittway
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
provides detailed information on detector spacing, place-
ment, zoning, wiring, and special applications. Copies of
this manual are available at no charge from System Sensor.
General Description
This plug-in detector base is used with System Sensor 200
and 500 Series detectors.
The B501 base is intended for use in an intelligent system
with screw terminals provided for power (+) and (–), and
remote annunciator connections. The communication takes
place over the power (+) and (–) lines.
Base Terminals
No. Function
1 Power (–), Remote Annunciator (–)
2 Power (+)
3 Remote Annunciator (+)
3
2(+)
1(-)
BASE
TERMINALS
TAMPER PROOF
TAB
SHIELD
Figure 1. Terminal layout:
Specifications
Diameter: 4.0 inches (10.2cm)
Mounting: 50mm, 60mm, and 70mm centers
Electrical Ratings – includes base and detector
Voltage Range: 15-32 VDC
Standby Current (nominal): 150µA at 24 VDC
Power-Up Surge at
Maximum Rated Voltage: 1.5mA–Sec.
LED Current (nominal): 6mA at 24 VDC
A78-1318-04
INSTALLATION AND MAINTENANCE INSTRUCTIONS
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D550-02-00 2 I56-357-04
Wiring Installation Guidelines (See Figure 2)
All wiring must be installed in compliance with the Na-
tional Electrical Code and the local authority having juris-
diction. Proper wire gauges should be used. The
conductors used to connect the smoke detectors to control
panels and accessory devices should be color-coded to pre-
vent wiring mistakes. Improper connections can prevent a
system form responding properly in the event of a fire.
For signal wiring (the wiring between interconnected de-
tectors and modules), it is recommended that the wiring be
no smaller than 18 gauge (1.0 square mm). Wire sizes up
to 12 gauge wire (2.5 square mm) may be used with the
base. For best system performance, the power (+) and (–)
loop wires should be twisted pair or shielded cable in-
stalled in separate grounded conduit to protect the loop
from extraneous electrical interference. If a cable shield is
provided, the shield connection to and from the base must
be continuous by using wire nuts, crimping, or soldering as
appropriate for a reliable connection.
Wire Connections are made by simply stripping about 3/8”
of insulation from the end of the wire (use strip gauge
molded in base), sliding the bare end of the wire under the
clamping plate and tightening the clamping plate screw. Do
not loop the wire under the clamping plate.
The zone wiring of the detector base should be checked
before the detector heads are installed in them. The wiring
should be checked for continuity, polarity in the base, and
dielectric tests.
Figure 2. Typical wiring diagram for 2-wire loop:
The base contains a label to write the zone, address, and
type of detector to be installed at that location. This infor-
mation is used to set the address of the detector head that
will later be plugged into the base and to verify the type re-
quired for that location.
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D550-02-00 3 I56-357-04
STRIPPED WIRE
WIRE WITH
SPADE LUG
Figure 4. Connection to remote annunciator terminal:
Figure 3A. Activating tamperproof feature: Figure 3B. Removing detector head from base:
Tamperproof Feature
This detector base also includes an optional tamperproof
feature that when activated prevents removal of the detec-
tor without the use of a tool.
To activate this feature, simply break off the tab on the de-
tector base shown in Figure 3A, and install the detector. To
remove the detector from the base once the tamperproof
feature has been activated, place a small-bladed screw-
driver into the small hole on the side of the base and push
the plastic lever away from the detector head (see Figure
3B). This will allow the detector to be rotated counterclock-
wise for removal.
The tamperproof feature may be defeated by breaking and
removing the plastic lever from the base, however this pre-
vents ever using the feature again.
Remote Annunciator (RA400)
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 4.
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 RA400 is considered an equivalent means. See
Figure 2 for proper installation.
A78-1473-00
A78-1468-02
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D550-02-00 4 I56-357-04
© System Sensor 1999
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, representa-
tive, dealer, or employee of the Company has the authority to increase or
alter the obligations or limitations of this Warranty. The Company’s obli-
gation 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 pe-
riod commencing with the date of manufacture. After phoning System
Sensor’s toll free number 800-SENSOR2 (736-7672) for a Return Authori-
zation 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 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 negli-
gence or fault. Some states do not allow the exclusion or limitation of inci-
dental 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.
The smoke detector used with this base is designed to activate and ini-
tiate emergency action, but will do so only when it is used in conjunction
with an authorized fire alarm system. This detector must be installed in
accordance with NFPA standard 72.
Smoke detectors will not work without power. AC or DC powered
smoke detectors will not work if the power supply is cut off.
Smoke detectors will not sense fires which start where smoke does not
reach the detectors. Smoldering fires typically do not generate a lot of
heat which is needed to drive the smoke up to the ceiling where the
smoke detector is usually located. For this reason, there may be large de-
lays in detecting a smoldering fire with either an ionization type detector
or a photoelectric type detector. Either one of them may alarm only after
flaming has initiated which will generate the heat needed to drive the
smoke to the ceiling.
Smoke from fires in chimneys, in walls, on roofs or on the other side of a
closed door(s) may not reach the smoke detector and alarm it. A detector
cannot detect a fire developing on another level of a building quickly or at
all. For these reasons, detectors shall be located on every level and in
every bedroom within a building.
Smoke detectors have sensing limitations, too. Ionization detectors and
photoelectric detectors are required to pass fire tests of the flaming and
smoldering type. This is to ensure that both can detect a wide range of
types of fires. Ionization detectors offer a broad range of fire sensing capa-
bility but they are somewhat better at detecting fast flaming fires than
slow smoldering fires. Photoelectric detectors sense smoldering fires better
than flaming fires which have little, if any, visible smoke. Because fires de-
velop in different ways and are often unpredictable in their growth, nei-
ther type of detector is always best, and a given detector may not always
provide early warning of a specific type of fire.
In general, detectors cannot be expected to provide warnings for fires re-
sulting from inadequate fire protection practices, violent explosions, es-
caping gases which ignite, improper storage of flammable liquids like
cleaning solvents which ignite, other similar safety hazards, arson, smok-
ing in bed, children playing with matches or lighters, etc. Smoke detectors
used in high air velocity conditions may have a delay in alarm due to dilu-
tion of smoke densities created by frequent and rapid air exchanges. Addi-
tionally, high air velocity environments may create increased dust
contamination, demanding more frequent maintenance.
To keep your equipment in excellent working order, ongoing maintenance
is required per the manufacturer’s recommendations and UL and NFPA
standards. At a minimum, the requirements of Chapter 7 of NFPA 72, the
National Fire Alarm Code, shall be followed. A preventative maintenance
agreement should be arranged through the local manufacturer’s represen-
tative. Though smoke detectors are designed for long life, they may fail at
any time. Any smoke detector, fire alarm equipment, or any component of
that system which fails shall be repaired or replaced as soon as possible.
WARNING
The Limitations of Property Protection Smoke Detectors
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