Siemens CP-48 Instruction Manual

P/N 315-083955-7
Operation, Installation, and Maintenance Manual
Model CP-48
Fire and Smoke Detection and Alarm System
Fire Safety
Siemens Building Technologies, Inc.
8 Fe nwood Road
Flo ham Pa k, New Je sey 07932
Siemens Building Technologies, Ltd.
2 Kenview Bouleva d
B ampton, Onta io L6T 5E4 CN
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2
1.0 INTRODUCTION
The Model CP-48 Control Panel is a single zone fire alarm
control unit, which may employ the specified ionization, thermal or
photoelectric type detector. This unit has een especially designed to
operate from a 48 volt DC power input source such as is availa le in
telephone community dial offices. The front cover contains a manual
fire alarm station and entry key lock. Displayed through the front cover
are the; Power On, Alarm, and Trou le Visual Indicators. Within
the control panel are a fire alarm Reset/Lamp Test switch, a switch to
silence the panel contained audi le alarm, two sets of isolated alarm
relay contacts, and one set of trou le relay contacts.
2.0 USER OPERATING INSTRUCTIONS FOR CP-48
(Refer to schematic on inside ack cover.)
2.1 Normal Stand-By Operation:
With panel connected to the 48 VDC Power Supply using the correct
polarity connection, and the initiating circuit terminated with the 1.8K
end of line resistor, the panel should display a normal condition with
only the visual Power indicator illuminated in the normal state.
An off normal position of the internal audi le alarm selector switch
when the panel is not in alarm condition will result in a trou le
condition.
An alarm condition may e cleared or reset y operating the momen-
tary Reset switch. The associated manual fire alarm station must
e returned to manual position efore the system will reset.
2.2 If Fire Alarm Sounds:
a. Notify the Fire Department. If the system is connected to the Fire
Department or a central station, this is done automatically y the
control equipment. Keep in mind that the Fire Department or
central station should e notified when resetting the system.
b. If fire is not apparent, DO NOT RESET SYSTEM. Locate the
detector initiating the alarm. The initiating detector will have the
ase indicating lamp energized.
c. After the fire is completely extinguished and all smoke and gases
are cleared from the area, reset the system y moving the Reset
Switch momentarily to the Reset position.
2.3 When rouble Condition Develops:
a. The trou le contacts will e in trou le state. Call your author-
ized Siemens Building Technologies, Inc. Representative. The
trou le should e diagnosed and corrected immediately.
2.4 Periodically esting the System: (Be sure to notify the
proper authorities prior to performing tests)
a. The system should e tested at regular intervals to insure
operational relia ility and optimum performance. To test the
system, activate at least one detector. An lonization detector may
e activated y lowing smoke into the screened cham er or
holding a lighted match a few inches elow it. Check that system
responds properly.
b. Reset the system.
c. This inspection should include checking the sensitivity of
every ionization detector using a sensitivity checker.
Figure 1
Model CP-48
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3
.0 INSTALLATION AND WIRING
The relia ility of any system depends to a great extent on the proper
installation of the control units, detectors, associated equipment, and
wiring. These instructions outline the requirements for a satisfactory
installation. Careful completion of each detail will provide an auto-
matic fire and smoke detection system that will e dependa le and
give relia le operation.
Connection instructions are mounted inside the chassis cover of the
CP-48. Additional wiring information is provided in this manual. Any
questions regarding the equipment or installation should e directed
to Siemens Building Technologies, Inc., or an authorized represen-
tative. Do not make any alteration without first consulting the a ove.
3.1 Mounting Control Units (Reter to Figure 2):
The Control Unit should e securely fastened to a shock and
vi ration free surface in a clean, dry area. It must e mounted
greater than 3 ft., ut less than 6 ft. from the floor. The location
should e easily visi le and readily accessi le for maintenance and
allow sufficient clearance to open the hinged front door.
Local regulations or codes generally require all wiring to, from, and
etween units to e carried in 1/2"-3/4" knockouts provided in the
top and ottom of the control unit. #18 AWG 300V insulation,
color coded wire is recommended for the detector circuits. A larger
size may e used if desired. For the DC power input use #14 AWG
300V wire.
3.2 Power Requirements:
The Model CP-48 Control Unit is designed to e operated from a
48 VDC power source having the positive line grounded, such as
is availa le in telephone community dial offices. The 48 VDC input
powers all internal circuitry. The DC voltage may vary etween the
limits of 42 and 55 volts and the limits should not e exceeded. The
CP-48 Control Unit, ungrounded leg, must e connected through a
separate circuit reaker or fuse directly to the DC power supply. No
other equipment may e supplied from this separate circuit reaker
or fuse. Wire must e run continuously from power source to
terminals in Control Unit. Refer to Wiring Diagram (Figure 3) for
terminal connections.
3.3 Installation of Conduit and Outlet Boxes:
Install outlet oxes and run conduit etween oxes and control unit.
Use 4"x21/8" deep octagon oxes for ionization, photoelectric, flame,
and plug-in thermal detectors. Do not mount oxes in direct air flow
from air-conditioning or ventilating system supply registers.
The control unit, and all detectors and alarm circuit conduit, must e
properly grounded. Insure that all conduit has clean threads and
makes good electrical contact etween control unit and outlet oxes.
3.4 Installation of Detector Bases:
a. Wiring (Refer to Figure 3):
Run wire in accordance with wiring diagram. Use at least #18 AWG
300 volt insulation, color coded wire for the detector circuits. Wiring
etween control unit and first detector ase, and all su sequent
detector ases must e continuous; no splices, wire nuts, solder or
any other type connection is permissi le. On rare occasions an
exception may e necessary due to an extremely long run. In this
case, the splice must e soldered.
Figure 2
Mounting Data
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4
The wire interconnecting the detector ases is continuously super-
vised y a small electrical current flow through the circuit to the end-
of-line resistor (1.8K ohms) mounted in the ase of the last detector.
In order to keep this supervision complete, no parallel ranching of
wires is permissi le. Every ase, except the last one, will have one
set of incoming, and one set of outgoing wires.
b. Installing Bases:
Mount end-of-line resistor etween appropriate terminals of last ase
on circuit, as indicated on wiring diagram. Mount all ases to outlet
oxes. Manual Stations, Thermal Detectors, Air Duct Detectors, etc.,
are to e connected to the circuit at this time. Please refer to wiring
diagrams for specific equipment for connection details.
3.5 est of Wiring:
Note: It is suggested that electrical tests e conducted jointly y the
installer and the manufacturers technician or representative. Fifteen
(15) days prior written notice is requested so that the services of the
technician may e scheduled.
The installation of the wiring should be checked as follows:
a. Detectors should not e in their ases. Temporary jumpers
should e inserted appropriately in all ases. Install end-of-line
resistor to appropriate terminals of last detector on circuit.
Wiring from ases should NOT e connected to Control Panel
at this time.
b. Check the wiring of the detector circuit with ohmmeter. Resis-
tance reading etween wires normally connected to terminals 3
and 4 of the Control Panel should e approximately 1.8K ohms.
Short the detector lines together and megger the com ined lines
to chassis and conduit. There should e at least 10 meg resis-
tance reading etween wires and conduit or ground.
c. Connect wires to appropriate terminals of the Model CP-48. For
ase wiring, follow instructions included with ase.
d. The manufacturers service representative will then install
detectors and check sensitivity.
3.6 est for System Operation:
a. See that the CP-48 Control Unit is in normal stand y operation.
b. To test for supervision of initiating circuit, remove the detector
connected to the last device and check that proper trou le
indicators respond in the system. Re-connect detector.
c. To test operation of initiating circuit, actuate a detector. Check
that system fire indicators and alarm relay contacts respond to
the alarm.
d. Test operation of detector circuit, activate each detector and
manual station, one at a time, resetting each, and check that
detector ase lamp and the control unit alarm controls operate.
Each ionization detector may e activated y lowing smoke
into the cham er or holding a lighted match a few inches elow
it. The manual station on front panel should e checked
independently.
INPUT
48V +7/-6 VDC,
500mA FUSE
INTERNALLY AT 2A
SUPERVISORY 12mA
ALARM 100mA MAX
SUPERVISED
DETECTOR LINES
21.5 VDC
ION OR PHOTO
DETECTOR
THERMAL DETECTOR
MANUAL STATION
TROUBLE
OPERATED
CONTACTS
RATED 1A
120 VAC/48 VDC
ALARM
OPERATED
CONTACTS
RATED 3A
120 VAC/48 VDC
1.8K, 1/2W, 5%
END OF LINE RESISTOR
NOTES:
1. Contacts are shown in normal supervisory
condition.
2. See wiring diagram of specific detector type
for proper screw terminal connections. Compat-
ible detectors are shown in the Table on page 5.
. Input voltage not to exceed 56 volts peak.
Figure
Wiring Diagram
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5
4.0 MAINTENANCE
Fire and Insurance authorities recommend annual inspection and
if necessary, service of fire protection equipment. To insure proper
and relia le operation, we recommend the following inspection and
testing annually y a qualified technician:
1. The detector head screen should e inspected for dust
accumulations and if excessive, contact your distri utor or
factory for service.
2. Activate a detector. Check that ase lamp operates and
that proper fire indications are given y the system. An
ionization detector may e activated y lowing smoke
into the screened cham er or y holding a lighted match
a few inches elow it.
3. Check the supervisory circuit y operating the Reset
Switch to the reset position. In this position, the system
should give the required trou le indications.
4. Check operation of each detector on circuit. Measure
sensitivityof each detector with appropriate sensitivity
checker.
5.0 TROUBLE SHOOTING THE SYSTEM
Perform checks in order following symptom noted. Refer to chart
for proper readings across specific terminals.
A trou le condition may result from any of the following conditions:
 Open circuit detector lines
 Input fuse open*
 Loss of input supply*
 Reset switch not in closed or normal position.
 Alarm silence switch in off normal or silenced position during
non-alarm condition.
*Note items 2 and 3 a ove.
These conditions cause a change of state of the trou le relay
contacts only and not a visual trou le indication.
Trou le Condition (Trou le contacts in trou le state):
1. Check main power; terminals 1 (+) to 2 (-).
2. Check fuse F1.
3. Check detector circuit voltage: terminals 3 (+) to 4 (-).
Alarm Condition (alarm contacts in alarm state) without symptoms
of fire:
a. Place Reset Switch in reset position and release.
b. If voltage terminals 3 (+) 4 (-) is less than 20 VDC, check
current terminal 3. If an excess of Normal range then check
detector circuit for alarmed detector, correct end of line resistor,
or shorted lines.
VO TAGE/CURRENT MEASUREMENT CHART
For DC voltage measurement on terminals noted in left hand
column, the positive terminal is listed first.
Terminals Voltage Current Mode
3+ 4- 20-23 VDC  Normal
1+ 2- 42-55 VDC  Normal
3  14-20 mA DC Normal
3  > 50 mA DC Alarm
DETECTORS
May use up to 30 detectors
(selected from any of the
compati le detectors listed at
the right) or may use shorting
devices, detector relays, or
remote lamps (Refer to the
related detector instructions).
*CP-48 is the compati ility identifier.
DETECTOR BASE INSTA ATION/
COMPATIBI ITY COMPATIBI ITY WIRING
IDENTIFIER IDENTIFIER INSTRUCTIONS
DI-3 DB-3S P/N 315-081943-15
DI-4A DB-4 P/N 315-085257-11
PE-3 DB-3S P/N 315-090875-6
COMPATIB E DETECTORS*
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CP-48 Schematic 530-083621 NOTES: 1. UNLESS OTHERWISE SPECIFIED, ALL RESISTOR VALUES
ARE IN Os (OHMS) 1/4W.
2. UNLESS OTHERWISE SPECIFIED, ALL CAPACITOR VALUES
ARE IN µFD (MICROFARADS).
. DIODES CR5-CR9 ARE IN400 . 4. KT/2 SHOWN ENERGIZED
KA/4 SHOWN DE-ENERGIZED.
CP-48 Schematic
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P/N 315-083955-7
Siemens Building Technologies, Inc.
8 Fe nwood Road
Flo ham Pa k, New Je sey 07932
Siemens Building Technologies, Ltd.
2 Kenview Bouleva d
B ampton, Onta io L6T 5E4 CN
Technical Manuals Online! - http://www.tech-man.com
firealarmresources.com