CHG-120
Fire Control Instruments
14-16 Southwest Park
Westwood, MA 02090, USA
Phone: (781) 471-3000
FAX: (781) 471-3099
FCI P/N 9000-0572
CHG-120 Battery Charger
Instruction Manual
Document 52459
11/22/04 Revision:
PN 52459:A ECN 04-691
A
Fire Alarm System Limitations
While a fire alarm system may lower insurance
rates, it is not a substitute for fire insurance!
An automatic fire alarm system–typically made up of smoke
detectors, heat detectors, manual pull stations, audible warning devices, and a fire alarm control with remote notification
capability–can provide early warning of a developing fire.
Such a system, however, does not assure protection against
property damage or loss of life resulting from a fire.
The Manufacturer recommends that smoke and/or heat detectors be located throughout a protected premise following the
recommendations of the current edition of the National Fire
Protection Association Standard 72 (NFPA 72),
manufacturer's recommendations, State and local codes, and
the recommendations contained in the Guide for Proper Use
of System Smoke Detectors, which is made available at no
charge to all installing dealers. A study by the Federal Emergency Management Agency (an agency of the United States
government) indicated that smoke detectors may not go off in
as many as 35% of all fires. While fire alarm systems are designed to provide early warning against fire, they do not guarantee warning or protection against fire. A fire alarm system
may not provide timely or adequate warning, or simply may not
function, for a variety of reasons:
Smoke detectors may not sense fire where smoke cannot
reach the detectors such as in chimneys, in or behind walls, on
roofs, or on the other side of closed doors. Smoke detectors
also may not sense a fire on another level or floor of a building. A second-floor detector, for example, may not sense a
first-floor or basement fire.
Particles of combustion or "smoke" from a developing fire
may not reach the sensing chambers of smoke detectors because:
• Barriers such as closed or partially closed doors, walls, or
chimneys may inhibit particle or smoke flow.
• Smoke particles may become "cold," stratify, and not reach
the ceiling or upper walls where detectors are located.
• Smoke particles may be blown away from detectors by air
outlets.
• Smoke particles may be drawn into air returns before reaching
the detector.
The amount of "smoke" present may be insufficient to alarm
smoke detectors. Smoke detectors are designed to alarm at
various levels of smoke density. If such density levels are not
created by a developing fire at the location of detectors, the
detectors will not go into alarm.
Smoke detectors, even when working properly, have sensing
limitations. Detectors that have photoelectronic sensing
chambers tend to detect smoldering fires better than flaming
fires, which have little visible smoke. Detectors that have ionizing-type sensing chambers tend to detect fast-flaming fires
better than smoldering fires. Because fires develop in different ways and are often unpredictable in their growth, neither
type of detector is necessarily best and a given type of detector may not provide adequate warning of a fire.
Smoke detectors cannot be expected to provide adequate
warning of fires caused by arson, children playing with
matches (especially in bedrooms), smoking in bed, and violent
explosions (caused by escaping gas, improper storage of
flammable materials, etc.).
Heat detectors do not sense particles of combustion and alarm
only when heat on their sensors increases at a predetermined
rate or reaches a predetermined level. Rate-of-rise heat detectors may be subject to reduced sensitivity over time. For this
reason, the rate-of-rise feature of each detector should be tested
at least once per year by a qualified fire protection specialist.
Heat detectors are designed to protect property, not life.
IMPORTANT! Smoke detectors must be installed in the same
room as the control panel and in rooms used by the system for
the connection of alarm transmission wiring, communications,
signaling, and/or power. If detectors are not so located, a devel-
oping fire may damage the alarm system, crippling its ability to
report a fire.
Audible warning devices such as bells may not alert people if
these devices are located on the other side of closed or partly
open doors or are located on another floor of a building. Any
warning device may fail to alert people with a disability or those
who have recently consumed drugs, alcohol or medication.
Please note that:
• Strobes can, under certain circumstances, cause seizures in
people with conditions such as epilepsy.
• Studies have shown that certain people, even when they hear
a fire alarm signal, do not respond or comprehend the meaning of the signal. It is the property owner's responsibility to
conduct fire drills and other training exercise to make people
aware of fire alarm signals and instruct them on the proper
reaction to alarm signals.
• In rare instances, the sounding of a warning device can cause
temporary or permanent hearing loss.
A fire alarm system will not operate without any electrical
power. If AC power fails, the system will operate from standby
batteries only for a specified time and only if the batteries
have been properly maintained and replaced regularly.
Equipment used in the system may not be technically compatible with the control. It is essential to use only equipment
listed for service with your control panel.
Telephone lines needed to transmit alarm signals from a
premise to a central monitoring station may be out of service
or temporarily disabled. For added protection against telephone line failure, backup radio transmission systems are recommended.
The most common cause of fire alarm malfunction is inadequate maintenance. To keep the entire fire alarm system 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 shall be followed. Environments with large amounts of
dust, dirt or high air velocity require more frequent maintenance. A maintenance agreement should be arranged
through the local manufacturer's representative. Maintenance
should be scheduled monthly or as required by National and/
or local fire codes and should be performed by authorized professional fire alarm installers only. Adequate written records
of all inspections should be kept.
LimWarLg.p65 01/10/2000
Installation Precautions
Adherence to the following will aid in problem-free
installation with long-term reliability:
WARNING - Several different sources of power can be con-
nected to the fire alarm control panel. Disconnect all sources
of power before servicing. Control unit and associated equipment may be damaged by removing and/or inserting cards,
modules, or interconnecting cables while the unit is energized.
Do not attempt to install, service, or operate this unit until this
manual is read and understood.
CAUTION - System Reacceptance Test after Software
Changes. To ensure proper system operation, this product
must be tested in accordance with NFPA 72 Chapter 7 after
any programming operation or change in site-specific software. Reacceptance testing is required after any change, addition or deletion of system components, or after any modification, repair or adjustment to system hardware or wiring.
All components, circuits, system operations, or software functions known to be affected by a change must be 100% tested.
In addition, to ensure that other operations are not inadvertently affected, at least 10% of initiating devices that are not
directly affected by the change, up to a maximum of 50 devices, must also be tested and proper system operation verified.
This system meets NFPA requirements for operation at
0-49° C/32-120° F
condensing) at 30° C/86° F. However, the useful life of the
system's standby batteries and the electronic components
may be adversely affected by extreme temperature ranges
and humidity. Therefore, it is recommended that this system
and all peripherals be installed in an environment with a nominal room temperature of 15-27° C/60-80° F.
Verify that wire sizes are adequate for all initiating and
indicating device loops. Most devices cannot tolerate more
than a 10% I.R. drop from the specified device voltage.
and at a relative humidity of 85% RH (non-
Like all solid state electronic devices, this system may
operate erratically or can be damaged when subjected to lightning-induced transients. Although no system is completely
immune from lightning transients and interferences, proper
grounding will reduce susceptibility. Overhead or outside
aerial wiring is not recommended, due to an increased susceptibility to nearby lightning strikes. Consult with the Techni-
cal Services Department if any problems are anticipated or
encountered.
Disconnect AC power and batteries prior to removing or inserting circuit boards. Failure to do so can damage circuits.
Remove all electronic assemblies prior to any drilling, filing,
reaming, or punching of the enclosure. When possible, make
all cable entries from the sides or rear. Before making modifications, verify that they will not interfere with battery, transformer, and printed circuit board location.
Do not tighten screw terminals more than 9 in-lbs.
Over-tightening may damage threads, resulting in reduced
terminal contact pressure and difficulty with screw terminal
removal.
Though designed to last many years, system components
can fail at any time. This system contains static-sensitive
components. Always ground yourself with a proper wrist strap
before handling any circuits so that static charges are removed from the body. Use static-suppressive packaging
to protect electronic assemblies removed from the unit.
Follow the instructions in the installation, operating, and
programming manuals. These instructions must be followed
to avoid damage to the control panel and associated
equipment. FACP operation and reliability depend upon
proper installation by authorized personnel.
FCC Warning
WARNING: This equipment generates, uses, and can
radiate radio frequency energy and if not installed and
used in accordance with the instruction manual, may
cause interference to radio communications. It has
been tested and found to comply with the limits for class
A computing device pursuant to Subpart B of Part 15 of
FCC Rules, which is designed to provide reasonable
protection against such interference when operated in a
commercial environment. Operation of this equipment in
a residential area is likely to cause interference, in which
case the user will be required to correct the interference
at his own expense.
Canadian Requirements
This digital apparatus does not exceed the Class A
limits for radiation noise emissions from digital
apparatus set out in the Radio Interference Regulations
of the Canadian Department of Communications.
Le present appareil numerique n'emet pas de bruits
radioelectriques depassant les limites applicables aux
appareils numeriques de la classe A prescrites dans le
Reglement sur le brouillage radioelectrique edicte par le
ministere des Communications du Canada.
LimWarLg.p65 01/10/2000
Notes
Table of Contents
Introduction to the Charger ....................................................................................... 1
Overview................................................................................................................... 1
Specifications............................................................................................................ 2
Compliance with NFPA Codes and UL Standards ................................................... 2
Charger Maintenance ................................................................................................ 2
Installing the Charger................................................................................................. 3
Overview................................................................................................................... 3
Installation Precautions and Standards ..................................................................... 3
Battery Precautions............................................................................................... 3
Installation Standards............................................................................................ 4
Charger Connections, Jumpers, and Switches .......................................................... 4
Connecting AC Power to the Charger ...................................................................... 5
Connecting Batteries to the Charger ......................................................................... 6
Mounting the Charger ............................................................................................... 8
Mounting the Charger into a CAB-X3 Series Cabinet ......................................... 8
Mounting the Charger into a BB-55 Battery Box................................................. 9
Connecting the Charger to a Load .......................................................................... 10
Connecting the Charger to a Multiple Load ....................................................... 10
Adding the Charger for Additional Current.........................................................11
Configuring the Charger ......................................................................................... 12
Delay loss of AC Reporting................................................................................ 12
Disable Ground Fault Detection ......................................................................... 12
Trouble and Form-C Relay Connections (Optional) .............................................. 13
Installing Optional Meters ...................................................................................... 14
Installing an AM-1.............................................................................................. 14
Installing a VM-1................................................................................................ 14
Operating the Charger.............................................................................................. 15
Overview................................................................................................................. 15
Starting the Charger ................................................................................................ 15
Understanding the LED Status Indicators............................................................... 15
Normal Operation ................................................................................................... 16
CHG-120 Instruction 11/22/04 PN: 52459:A FCI P/N:9000-0572 v
Notes
vi CHG-120 Instruction 11/22/04 PN: 52459:A FCI P/N:9000-0572
Note: Throughout this manual,
the term “charger” refers to a
CHG-120.
1. Introduction to the Charger
Overview
The CHG-120 battery charger is designed to charge lead-acid batteries that provide
emergency standby power for a Fire Alarm Control Panel (FACP). Two 12-volt batteries
are always used in series to supply 24 VDC nominal. The following list gives answers to
some common questions about the charger:
• What types of FACPs can be used with the charger? Any 24 VDC FACP that uses
lead-acid 25 AH to 120 AH batteries and that has the feature to disable the FACP
battery charger.
• Where does the charger mount? You can mount the charger into a CAB-X3 Series
Cabinet or into a BB-55 Battery Box.
• How many outputs does the charger provide? The charger provides two output
circuits for connection to multiple loads (such as a power supply, amplifier, auxiliary
amplifier, and so forth).
• What options are available with the charger? You can configure the charger to
disable the charger’s ground fault detection, to delay AC loss reporting (8 or 16 hours),
and to operate with 120 VAC or 240 VAC.
• How long does it take the charger to charge batteries? Typically, it takes 9 hours to
charge 25 AH batteries, 20 hours to charge 60 AH batteries, and up to 48 hours to
charge 120 AH batteries. Refer to “Specifications” on page 2 for details.
Figure 1 identifies features of the charger:
Note: For detailed descriptions of charger connections, jumpers, and
switches, see “Charger Connections, Jumpers, and Switches” on page 4.
Heavy duty primary
AC power
connections
Voltage Selection Switch
for 120 VAC or 240 VAC
operation
15 A replaceable fuses provide
short circuit and overload
protection
Nine LED status
indicators
Open collector trouble daisy chain
connections
External trouble
input
Form-C trouble relay to
other devices
Two output circuits to
load (power supply,
auxiliary power supply,
amplifiers, etc.)
25 AH – 120 AH battery
connections
Optional Ammeter
connection
Figure 1 Charger Features
CHG-120 Instruction 11/22/04 PN: 52459:A FCI P/N:9000-0572 1
Introduction to the Charger Specifications
The charger also provides the following features:
• AM-1 ammeter (0-10A) ordered separately
• VM-1 voltmeter (0-50 V) ordered separately
• Disable local ground fault detection
• Selectable loss of AC delay (8 or 16 hours)
Specifications
Table 1 contains electrical specifications for the charger:
Primary AC power in (TB1) 120 VAC, 60 Hz, 2 A
240 VAC, 50 Hz, 1 A
Form-C relay (TB3) 5 A at 30 VDC
Float charge voltage 27.6 VDC
Maximum charging current 4.5 A
Fuses F1-F3 (PN 12057) 15 A
Battery sizes 25 AH to 120 AH
Charging Time (to charge two fully discharged
batteries
25 AH – 9 hours
55 AH/60 AH – 20 hours
120 AH – 38 hours
Table 1 Charger Specifications
Compliance with NFPA Codes and UL Standards
The charger complies with the following standards:
• NFPA 72-1993 National Fire Alarm Code
• UL 864 Standard for Control Units for Fire Alarm Systems and UL 1481 Power
Supplies for Fire Alarm Systems
• CAN/ULC-S527-M87
Charger Maintenance
The charger does not require regular maintenance. While installing the charger, however,
make sure to maintain proper polarity when connecting power leads and battery
connections. To ensure optimal operation of the charger, observe the following:
Overload and reverse-polarity protection Fuses F1, F2 and F3 (15 A, PN
overload and reverse-polarity protection. Replace a blown fuse with a fuse with the same
rating and type.
Periodic Inspection Periodically inspect the batteries for corrosion and make sure that
corrosive effects to the batteries do not affect the charger or cabinet.
12057) provide
Troubleshooting Most problems with a charger are due to faulty batteries or loose
connections. If you encounter problems, inspect the charger, the battery, and all
connections for loose wiring or short circuits.
Replacing Batteries Only replace batteries with the same charge rate and capacity as
other batteries in the set. For example, if replacing one of four 60 AH batteries, make sure
the replacement battery has the same charge rate and capacity as the other three batteries.
2
CHG-120 Instruction 11/22/04 PN: 52459:A FCI P/N:9000-0572
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