Fire-Lite CHG-120F Installation instructions

Battery Charger
CHG-120F
Installation & Operating Manual
Document 50888
03/21/2001 Rev: B
PN 50888:B0 ECN 01-155

LimWarLg.p65 01/10/2000
An automatic fire alarm system–typically made up of smoke
detectors, heat detectors, manual pull stations, audible warn-
ing 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 detec-
tors 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 Emer-
gency 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 de-
signed to provide early warning against fire, they do not guar-
antee 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 build-
ing. 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 be-
cause:
• 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 detectors 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 ion-
izing-type sensing chambers tend to detect fast-flaming fires
better than smoldering fires. Because fires develop in differ-
ent ways and are often unpredictable in their growth, neither
type of detector is necessarily best and a given type of detec-
tor 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 prede-
termined 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 pro-
tection 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 sys-
tem for the connection of alarm transmission wiring, communi-
cations, signaling, and/or power. If detectors are not so lo-
cated, a developing fire may damage the alarm system, crip-
pling 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 medica-
tion. 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 responsibil-
ity 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 com-
patible 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 tele-
phone line failure, backup radio transmission systems are rec-
ommended.
The most common cause of fire alarm malfunction is inade-
quate 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 stan-
dards. 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 mainte-
nance. 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 pro-
fessional fire alarm installers only. Adequate written records
of all inspections should be kept.
While a fire alarm system may lower insurance
rates, it is not a substitute for fire insurance!
Fire Alarm System Limitations

LimWarLg.p65 01/10/2000
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 equip-
ment 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 soft-
ware. Reacceptance testing is required after any change, ad-
dition or deletion of system components, or after any modifica-
tion, repair or adjustment to system hardware or wiring.
All components, circuits, system operations, or software func-
tions known to be affected by a change must be 100% tested.
In addition, to ensure that other operations are not inadvert-
ently affected, at least 10% of initiating devices that are not
directly affected by the change, up to a maximum of 50 de-
vices, must also be tested and proper system operation veri-
fied.
This system meets NFPA requirements for operation at
0-49°C/32-120°F and at a relative humidity of 85% RH (non-
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 nomi-
nal 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.
Like all solid state electronic devices, this system may
operate erratically or can be damaged when subjected to light-
ning-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 sus-
ceptibility 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 in-
serting 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 modifi-
cations, verify that they will not interfere with battery, trans-
former, 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 re-
moved 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.
Adherence to the following will aid in problem-free
installation with long-term reliability:
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.
FCC Warning
Installation Precautions

4CHG-120F Instruction 03/21/01 PN 50888:B0
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CHG-120F Instruction 03/21/01 PN 50888:B0 5
Table of Contents
1. Introduction to the Charger ................................................................................... 7
Overview................................................................................................................... 7
Figure 1: Charger Features .................................................................................. 7
Specifications ............................................................................................................ 8
Compliance with NFPA Codes and UL Standards ................................................... 8
Charger Maintenance ................................................................................................ 8
Table 1: Charger Specifications ......................................................................... 8
2. Installing the Charger............................................................................................. 9
Overview................................................................................................................... 9
Installation Precautions and Standards ..................................................................... 9
Battery Precautions............................................................................................... 9
Table 2: Installation Topics ................................................................................. 9
Installation Standards ......................................................................................... 10
Charger Connections, Jumpers, and Switches ........................................................ 10
Figure 2: Charger Connections, Switches, and Jumpers ................................... 10
Connecting AC Power to the Charger .................................................................... 11
Figure 3: Using SW1 to Select AC Voltage ...................................................... 11
Figure 4: Connecting AC Power to the Charger ................................................ 11
Connecting Batteries to the Charger ....................................................................... 12
Figure 5: Connecting 25 AH Batteries .............................................................. 12
Table 3: Connecting 25 AH Batteries ................................................................ 12
Figure 6: Connecting Four Batteries to a Charger ............................................. 13
Table 4: Connecting 55 AH Batteries ................................................................ 13
Mounting the Charger ............................................................................................. 14
Mounting the Charger into a CAB-A3F or CAB-B3F ....................................... 14
Figure 7: Mounting a Charger in a CAB-A3F or CAB-B3F ............................. 14
Mounting the Charger in a BB-55F Battery Box................................................ 15
Figure 8: Mounting a Charger in a BB-55F ...................................................... 15
Connecting the Charger to a Load .......................................................................... 16
Connecting the Charger to a Multiple Load -..................................................... 16
Figure 9: Typical Wiring of a Charger to a Multiple Load ............................... 16
Connecting the Charger to an MS-9200 -........................................................... 17
Figure 10: Typical Wiring of a Charger to an MS-9200 ................................... 17
Connecting the Charger to an MS-9600 -........................................................... 18
A charger can be connected to an MS-9600....................................................... 18
Figure 11: Typical Wiring of a Charger to an MS-9600 ................................... 18
Adding the Charger for Additional Current........................................................ 19
Figure 12: Typical Connections for Drawing Additional Current .................... 19
Configuring the Charger ......................................................................................... 20
Figure 13: Configuring the Charger .................................................................. 20
Delay loss of AC Reporting - ............................................................................. 20
Disable Ground Fault Detection -....................................................................... 20
Figure 14: Disabling Ground Fault Detection ................................................... 20
Trouble and Form-C Relay Connections (Optional) .............................................. 21
Figure 15: Connections for Optional Devices ................................................... 21
Table 5: Charger Trouble and Form-C Relay Connections ............................... 21

6CHG-120F Instruction 03/21/01 PN 50888:B0
Installing Optional Meters ...................................................................................... 22
Installing an AM-1.............................................................................................. 22
Table 6: Optional Meters ................................................................................... 22
Figure 16: Mounting an AM-1 or VM-1 to a BB-55F Battery Box .................. 22
Installing a VM-1 - ............................................................................................. 23
Installing an MPM-3........................................................................................... 23
Figure 17: Mounting an MPM-3 ....................................................................... 23
3. Operating the Charger.......................................................................................... 25
Overview................................................................................................................. 25
Starting the Charger ................................................................................................ 25
Understanding the LED Status Indicators............................................................... 25
Figure 18: LED Status Indicators ...................................................................... 25
Normal Operation ................................................................................................... 26
Table 7: LED Status Indicators ......................................................................... 26

CHG-120F Instruction 03/21/01 PN 50888:B0 7
1. Introduction to the Charger
Overview
The CHG-120F 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 in a CAB-A3F or
CAB-B3F Cabinet or in a BB-55F 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 55 AH batteries, and 38 hours to charge
120 AH batteries. Refer to “Specifications” on page 8 for details.
Figure 1 identifies features of the charger:
Figure 1 Charger Features
Note: Throughout this
manual, the term “charger”
refers to a CHG-120F.
Note: For detailed descriptions of charger connections, jumpers, and
switches, see “Charger Connections, Jumpers, and Switches” on page 10.
Voltage Selection
Switch for 120 VAC or
240 VAC operation
15 A replaceable fuses provide
short circuit and overload
protection
Optional Ammeter
connection
Nine LED status
indicators
Open collector trouble daisy
chain connections
External trouble
input
25 AH – 120 AH
battery connections
Form-C trouble relay to
other devices
Heavy duty primary
AC power
connections
Two output circuits to
load (power supply,
auxiliary power supply,
amplifiers, etc.)

Introduction to the Charger Specifications
8CHG-120F Instruction 03/21/01 PN 50888:B0
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 reporting delay for loss of AC (8 or 16 hours)
Specifications
Table 1 contains electrical specifications for the charger:
Compliance with NFPA Codes and UL Standards
The charger complies with the following standards:
• NFPA 72 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 12057)
provide 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.
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 - Replacement batteries must have the same charge rate and capacity
as other batteries in the set. For example, if replacing one of four 55 AH batteries, make
sure the new battery has the same charge rate and capacity as the other three batteries.
Primary AC power in (TB1) 120 VAC, 60 Hz, 2 A
240 VAC, 50 Hz, 1 A
24 VDC Secondary input power
(use in battery calculations for FACP)
60 mA - current draw with
AC power loss
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

CHG-120F Instruction 03/21/01 PN 50888:B0 9
2. Installing the Charger
Overview
This section contains instructions and illustrations for installing the charger, divided into
the following topics:
Installation Precautions and Standards
Battery Precautions When installing the charger, observe the following precautions:
Observe polarity when making connections.
Do not connect the Battery Interconnect Cable until instructed.
Batteries, although sealed, contain hazardous acid chemicals.
Charging batteries can cause flammable hydrogen gas.
Take care when handling batteries: batteries are heavy—Be careful when lifting and
handling them.
Mounting batteries requires proper mounting hardware. Follow the battery
manufacturer’s installation instructions
Section Topic(s) Covered Page
Installation Precautions and
Standards
Precautions to take when installing the charger and
recommended installation standards.
9
Charger Connections,
Jumpers, and Switches
Location and references to connections, jumpers, and
switches used to configure, maintain, and operate the
charger.
10
Connecting AC Power to
the Charger
How to connect AC power to the charger. 11
Connecting Batteries to the
Charger
How to connect batteries to the charger in two
configurations: using two batteries and using four
batteries.
12
Mounting the Charger How to mount the charger to a CAB-A3F or CAB-B3F.
How to mount the charger to a BB-55F.
14
Connecting the Charger to
a Load
Instructions and illustrations for wiring a charger to a
multiple load and for wiring a charger for a large
system installation.
16
Configuring the Charger Configuring the charger for the following options:
Delaying loss of AC reporting (DACT); and
Disabling ground fault detection
20
Trouble and Form-C Relay
Connections (Optional)
Instructions and illustrations for connecting the
following:
Open Collector Trouble In (JP5)
Trouble Out (JP4)
Master Trouble In (JP6)
Form-C Trouble Relay (TB3)
21
Installing Optional Meters How to install an optional ammeter, voltmeter, or both. 22
Table 2 Installation Topics
!

Installing the Charger Charger Connections, Jumpers, and Switches
10 CHG-120F Instruction 03/21/01 PN 50888:B0
Installation Standards An installer should be familiar with the following standards:
• NEC Article 300 Wiring Methods.
• NEC Article 760 Fire Protective Signaling Systems.
• Applicable Local and State Building Codes.
• Requirements of the Authority Having Jurisdiction.
Charger Connections, Jumpers, and Switches
Figure 2 illustrates all connections, jumpers, and switches needed to maintain, configure,
and operate the charger:
Figure 2 Charger Connections, Switches, and Jumpers
TB1 – AC Power (120 VAC
or 240 VAC (see
“Connecting AC Power to
the Charger” on page 11)
SW1 – Voltage Selection
Switch for selecting 120
VAC or 240 VAC operation
(See Figure 3 on page 11)
Resistor R104 – Cut to
disable ground fault
detection (refer to “Disable
Ground Fault Detection -”
on page 20)
LED Status Indicators – Nine LEDs to
indicate status of the charger (see
“Understanding the LED Status
Indicators” on page 25)
Resistor R100 – Used
with JP8 to delay loss of
AC reporting (refer to
“Delay loss of AC
Reporting -” on page 20)
JP4 – Open Collector Trouble Out
and JP5 – Open Collector Trouble In
[see “Trouble and Form-C Relay
Connections (Optional)” on page 21]
JP6 – Master Trouble In
[see “Trouble and Form-C
Relay Connections
(Optional)” on page 21]
TB3 – Form-C Trouble Relay
(see “Trouble and Form-C
Relay Connections
(Optional)” on page 21)
JP3 (AM-1 connector) and JP9 for
enabling an optional AM-1
ammeter. (see “Installing an AM-1”
on page 22)
Fuses F1, F2, and F3 – Replaceable
plugged fuses (see “Charger
Maintenance” on page 8)
TB2 – Output Circuits
1 and 2 (see
“Connecting the
Charger to a Load” on
page 16)
TB2 – Battery
Connections (see
“Connecting Batteries
to the Charger” on
page 12)
AC Primary On Charger Trouble Earth Ground Fault Hi Charge Lo Charge 27V (battery voltage >27 VDC) 25V (battery voltage between 25-27 VDC) 23V (battery voltage between 23-25 VDC) Low Battery (battery less than 23 VDC)

Connecting AC Power to the Charger Installing the Charger
CHG-120F Instruction 03/21/01 PN 50888:B0 11
Connecting AC Power to the Charger
Caution: Before connecting AC power to the charger—make sure to set the Voltage Select
Switch (SW1) on the charger (Figure 2) to match your AC power source (120 VAC or 240
VAC). Figure 3 shows the voltage selection positions for SW1:
Figure 3 Using SW1 to Select AC Voltage
Figure 4 shows the steps for connecting the charger to the main AC power source.
Figure 4 Connecting AC Power to the Charger
SW1 set to 120 VAC
operation
SW1 set to 240 VAC
operation
Note: The charger is rated
for120VACor240VAC
operation. Therefore, 115V
on SW1 indicates 120 VAC
operation; and 230V,
indicates 240 VAC
operation.
Step 1: Remove the plastic insulating cover
from TB1.
Step 2: Connect the Earth ground line to
TB1.
Step 3: Connect the Primary Neutral line to
TB1.
Step 4: Connect the Primary Hot line to TB1.
Check all connections, then replace the
plastic insulating cover.
TB1
Plastic
insulating cover
(PN 02114)
TB1
Earth ground (EARTH)
TB1
Earth ground (EARTH)
Neutral line in (NUTRL)
Earth ground (EARTH)
Neutral line in (NUTRL)
Primary Hot line in (HOT)
TB1

Installing the Charger Connecting Batteries to the Charger
12 CHG-120F Instruction 03/21/01 PN 50888:B0
Connecting Batteries to the Charger
Overview - 25 AH –120 AH batteries can be connected to the charger. This section
provides illustrations and instructions for connecting two batteries or for connecting four
batteries.
Connecting Two Batteries - Figure 5 illustrates how to connect two 25 AH batteries to
the charger:
Figure 5 Connecting 25 AH Batteries
Table 3 contains instructions for connecting batteries to the charger:
Warning: Do not
connect the Battery
Interconnect Cable
at this time.
Refer to “Starting the
Charger” on page 25.
!
TB2
Step Action
1 Remove all power sources to the charger.
2 Connect the battery negative cable to the TB2 terminal (on the charger)
labeled “Battery –” as shown in Figure 5.
3 Connect the battery positive cable to the TB2 terminal (on the charger)
labeled “Battery +” as shown in Figure 5.
4 Proceed to the section “Connecting the Charger.” Do not connect the Battery
Interconnect Cable at this time—refer to “Starting the Charger” on page 25.
Table 3 Connecting 25 AH Batteries

Connecting Batteries to the Charger Installing the Charger
CHG-120F Instruction 03/21/01 PN 50888:B0 13
Connecting Four Batteries - Figure 6 illustrates how to connect four 55 AH batteries to
the charger:
Figure 6 Connecting Four Batteries to a Charger
Table 4 contains instructions for connecting four batteries to the charger:
Warning: Do not
connect the Battery
Interconnect Cable
at this time.
Refer to “Starting the
Charger” on page 25.
!
TB2
Step Action
1 Remove all power sources to the charger.
2 Tie the batteries in pairs by connecting the battery negative terminals and the
battery positive terminals as shown in Figure 6.
3 Connect the battery negative cable to the TB2 terminal (on the charger) labeled
“Battery –” as shown in Figure 6.
4 Connect the battery positive cable to the TB2 terminal (on the charger) labeled
“Battery +” as shown in Figure 6.
5 Proceed to the section “Connecting the Charger.” Do not connect the Battery
Interconnect Cable at this time—refer to “Starting the Charger” on page 25.
Table 4 Connecting 55 AH Batteries

Installing the Charger Mounting the Charger
14 CHG-120F Instruction 03/21/01 PN 50888:B0
Mounting the Charger
Mounting the Charger into a CAB-A3F or CAB-B3F A charger can be mounted into the
bottom row of a CAB-A3F or CAB-B3F Cabinet, as long as the charger is within 20 feet of
the load. Typically, a charger mounts into the lower right corner of the CAB-A3F or
CAB-B3F—next to the power supply (Figure 7, position 2). If using an additional
CAB-A3F or CAB-B3F, the charger can be mounted in the lower left corner (Figure 7,
position 2). Figure 7 shows the two mounting positions of a charger in a CAB-A3F or
CAB-B3F.
Figure 7 Mounting a Charger in a CAB-A3F or CAB-B3F
To mount a charger in a CAB-A3F or CAB-B3F Cabinet, follow these instructions:
Position 1: Lower right corner. Position 2: Lower left corner.
Step Action
1 Align the charger chassis mounting slots with the mounting holes in the cabinet. If
mounting in position 2, place the charger chassis on the mounting hooks in the cabinet.
2 Insert the self-tapping screws through the charger chassis mounting slots and into the
mounting holes in the cabinet.
3 Tighten the self-tapping screws.
Mounting
hooks
Self-tapping screw Chassis mounting slot

Mounting the Charger Installing the Charger
CHG-120F Instruction 03/21/01 PN 50888:B0 15
Mounting the Charger in a BB-55F Battery Box A charger can be mounted in a
BB-55F battery box, provided the BB-55F is within 20 feet of the load. Note that a charger
takes up half the space in the BB-55F. This means there will be space remaining for only
two 25 AH batteries in the BB-55F. Figure 8 illustrates the mounting position of a charger
in a BB-55F.
Figure 8 Mounting a Charger in a BB-55F
To mount a charger in a BB-55F battery box, follow these instructions:
Step Action
1 Align the charger chassis mounting slots with the mounting holes in the BB-55F.
2 Insert the self-tapping screws through the charger chassis mounting slots and into the
mounting holes in the BB-55F.
3 Tighten the self-tapping screws.
Optional bracket for
mounting an optional
AM-1 or VM-1
Self-tapping screws
Self-tapping screw Chassis mounting slot

Installing the Charger Connecting the Charger to a Load
16 CHG-120F Instruction 03/21/01 PN 50888:B0
Connecting the Charger to a Load
This section provides four applications for connecting a charger to a load. While
connecting a charger to a load, observe the following precautions:
• Make sure all power has been removed from the charger and the load.
• Observe polarity when making connections.
Connecting the Charger to a Multiple Load - A charger can be connected to multiple
loads, such as a main power supply, auxiliary power supply and so forth, as illustrated in
Figure 9.
Figure 9 Typical Wiring of a Charger to a Multiple Load
To connect a charger as shown in Figure 9, follow these steps:
Step Action
1 Connect the battery+ and battery– terminals of the power supply to the charger
output circuit (TB2: Out 1+ and Out 1–) as shown in Figure 9.
2 Connect the battery+ and battery– terminals of an optional external device to the
charger output circuit (TB2: Out 2+ and Out 2–) as shown in Figure 9.
3 Connect the batteries to the charger (for battery connections see Figure 5 or
Figure 6).
Note: Figure 12 is a wiring
diagram which illustrates
the connection of a load to
battery terminals in order
to obtain additional
current.

Connecting the Charger to a Load Installing the Charger
CHG-120F Instruction 03/21/01 PN 50888:B0 17
Connecting the Charger to an MS-9200 - A charger can be connected to an MS-9200
(requires MS-9200 circuit board #71741, or later) by disabling the local charger by cutting
jumper JP1 as illustrated in Figure 10.
Figure 10 Typical Wiring of a Charger to an MS-9200
WARNING! Do not attempt to connect the CHG-120F to the older version MS-9200 FACP
main circuit board #03317, which does not allow disabling of the FACP battery charger (no
JP1 jumper). System damage will result.
To connect a charger as shown in Figure 10, follow these steps:
Step Action
1 Cut jumper JP1, on the MS-9200 main circuit board (#71741, available June 1, 1998)
only, to disable the FACP battery charger.
2 Cut the battery cable connected to J2 on the MS-9200 and wire nut to wires connected
to the charger output circuit (TB2: Out 1+ and Out 1–) as shown in Figure 10. Be
certain to observe polarity.
3 If needed, connect the battery+ and battery– terminals of an optional external device
to the charger output circuit (TB2: Out 2+ and Out 2–) as shown in Figure 10.
4 Connect the batteries to the charger (for battery connections see Figure 5 or Figure 6).
Cut JP1
MS-9200
CHG-120F
- +
!

Installing the Charger Connecting the Charger to a Load
18 CHG-120F Instruction 03/21/01 PN 50888:B0
Connecting the Charger to an MS-9600 - A charger can be connected to an MS-9600
as illustrated in Figure 11.
Figure 11 Typical Wiring of a Charger to an MS-9600
To connect a charger as shown in Figure 11, follow these steps:
Step Action
1 Cut jumper JP3, on the MS-9600 main circuit board to disable the FACP battery
charger.
2 Connect the battery cables between TB2 (+ and –) on the MS-9600 and the CHG-
120F charger output circuit (TB2: Out 1+ and Out 1–) as shown in Figure 11. Be
certain to observe polarity.
3 If needed, connect the battery+ and battery– terminals of an optional external device
to the charger output circuit (TB2: Out 2+ and Out 2–) as shown in Figure 11.
4 Connect the batteries to the charger (for battery connections see Figure 5 or Figure 6).
+BATTERY-
LCD DISPLAY KEYPADI/F
SECURITYO PT BD
OPT DACT
HOT
CB1
J3
J12
J2
TB1 TB 2
TB3
JP3
JP2
SW1
JP5
JP6
J17 J16
J6 J8
J7
J10 J11
CUT TO
DISABLE
LOCAL
CHARGER
DISABLE
GND
FLT
CUT TO
MONITOR4X TM
OPT SLC
4XTM O PT BD
TB4 TB 5 TB6 TB 7 TB8
NEUT EARTH
Battery –
25 AH
(12 V)
25 AH
(12 V)
–+–+
TB2
TB1
–
+
–
+
–
+
Battery +
Battery Interconnect Cable
Charger
To A u x il ia r y
Equipment
AC Power In
Neut Grd
Hot
Out 2 -
Out 1 +
Out 1 -
Out 2 +
MS-9600
+ –
Cut JP3
9600chgf.cdr

Connecting the Charger to a Load Installing the Charger
CHG-120F Instruction 03/21/01 PN 50888:B0 19
Adding the Charger for Additional Current Due to internal fuses, the maximum alarm
current that can be drawn from the batteries and passed through the charger’s two output
circuits is limited to 10 amps maximum (each circuit). The PS-12600 batteries, however,
are capable of supplying up to 45 amps of current in alarm. The remaining 25 amps of
alarm current can be drawn directly from the battery terminals to supply Notification
Appliance Circuits, control modules and other alarm devices as illustrated in Figure 12
Figure 12 Typical Connections for Drawing Additional Current
To connect a charger as shown in Figure 12, follow these steps:
Step Action
1 Connect the Battery+ and Battery– terminals of the power supply to the charger
Battery output (TB2: Batt 1+ and Batt 1–) as shown in Figure 12.
2 Connect the Battery+ and Battery– terminals of the first auxiliary device to the
charger output circuit (TB2: Out 2+ and Out 2–) as shown Figure 12.
3 Connect the Battery+ and Battery– terminals of the second auxiliary device to the
charger output circuit (TB2: Out 1+ and Out 1–) as shown in Figure 12.
4 Connect the Battery+ and Battery– terminals of the third auxiliary device to the
batteries as shown in Figure 12.
5 Connect the batteries to the charger.

Installing the Charger Configuring the Charger
20 CHG-120F Instruction 03/21/01 PN 50888:B0
Configuring the Charger
The charger can be configured to do the following:
• Receive 120 VAC or 240 VAC input power (see Figure 3 on page 11).
• Delay AC loss reporting (for Central Station applications); and
• Disable charger ground fault detection.
Figure 13 shows how to configure the charger for delaying the loss of AC reporting and for
disabling ground fault detection:
Figure 13 Configuring the Charger
Delay loss of AC Reporting - If using a Digital Alarm Communicator (DACT), you must
delay the reporting of an AC loss condition to a central station. This delays activation of the
trouble bus and Form-C trouble contacts when AC fails. You can configure the charger for
an 8-hour or a 16-hour delay as follows:
• 8-hour delay – Cut and remove jumper JP8 on the charger (Figure 13).
• 16-hour delay – Cut jumper JP8; then, cut and remove resistor R100 (Figure 13).
Disable Ground Fault Detection - To disable local (charger) earth fault detection, cut
and remove resistor R104 (Figure 13). Figure 14 contains a simplified block diagram that
shows ground fault detection disabled on a charger connected to a power supply:
Figure 14 Disabling Ground Fault Detection
Delay loss of AC (16 hrs)
cut and remove R100, in
addition to cutting JP8
Disable ground fault detection
cut and remove R104
Delay loss of AC (8 hrs) cut only JP8
On the charger,
disable ground fault
detection (cut R104).
Charger
MPS-24F/
On MPS-24F or
MPS-24AF, enable
ground fault
detection.
MPS-24AF