Fire-Lite CHG-75 User manual

Battery Charger
CHG-75
PN: 51315:A ECN 01-437
Document #51315
08/01/01 Revision: A

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-75 PN 51315:A 08/01/01
Notes

CHG-75 P/N: 51315:A 08/01/01 5
SECTION 1: Product Description ........................................................................................................................7
1.1: Features .......................................................................................................................................................7
1.2: Specifications ..............................................................................................................................................8
1.3: LED Indicators ............................................................................................................................................9
1.4: Charger Maintenance ..................................................................................................................................9
SECTION 2: Installation and Configuration .......................................................................................................10
2.1: Precautions ..................................................................................................................................................10
2.2: Charger Connections, Jumpers and Switches..............................................................................................10
2.3: Charger Configuration.................................................................................................................................11
2.3.1: SW2 & SW3 SLC Addressing Switches...........................................................................................11
2.3.2: SW1 SLC Communication Enable Switch .......................................................................................11
2.3.3: AC Loss Reporting Delay - Central Station Applications ................................................................11
2.3.4: Ground Fault Detection Disable........................................................................................................12
2.3.5: AM-1 Ammeter Enable.....................................................................................................................12
2.4: Mounting the Charger .................................................................................................................................12
2.4.1: Mounting the Charger in an FACP....................................................................................................12
2.4.2: Mounting the Charger in a BB-55F Battery Box.............................................................................. 13
2.4.3: Mounting Charger in BB-26 Battery Box.........................................................................................13
2.5: UL Power-limited Wiring Requirements.....................................................................................................14
2.6: Optional Voltmeter/Ammeter Installation ...................................................................................................15
2.7: Connecting AC Power to the Charger .........................................................................................................16
2.8: Connecting Batteries to the Charger ...........................................................................................................17
2.8.1: Connecting Two Batteries .................................................................................................................17
2.8.2: Connecting Four Batteries.................................................................................................................18
2.9: Connecting the Charger to a Load...............................................................................................................19
2.9.1: Connecting the Charger to a Single Load .........................................................................................19
2.9.2: Connecting the Charger to an MS-9200............................................................................................20
2.9.3: Connecting the Charger to an MS-9600............................................................................................21
2.9.4: Connecting the Charger to Multiple Loads.......................................................................................22
2.10: Trouble Monitoring ...................................................................................................................................23
SECTION 3: Operation .........................................................................................................................................25
3.1: Powering the Charger..................................................................................................................................25
3.2: LED Status Indicators .................................................................................................................................25
3.3: Normal Operation........................................................................................................................................26
Table of Contents

6CHG-75 PN 51315:A 08/01/01
It is imperative that the installer understand the requirements of the Authority Having Jurisdiction
(AHJ) and be familiar with the standards set forth by the following regulatory agencies:
• Underwriters Laboratories Standards
• NFPA 72 National Fire Alarm Code
NFPA Standards
NFPA 72 National Fire Alarm Code
UL 864 Standard for Control Units for Fire Protective Signaling Systems
UL 1481 Power Supplies for Fire Protective Signaling Systems
Other:
EIA-485 Serial Interface Standard
NEC Article 250 Grounding
NEC Article 300 Wiring Methods
NEC Article 760 Fire Protective Signaling Systems
Applicable Local and State Building Codes
Requirements of the Local Authority Having Jurisdiction (LAHJ)
Before proceeding, the installer should be familiar with the following documents.

Features Product Description
CHG-75 PN 51315:A 08/01/01 7
SECTION 1 Product Description
The CHG-75 battery charger is designed to charge lead-acid batteries that provide
emergency standby power for an FACP (Fire Alarm Control Panel) and related
equipment. Two 12 volt batteries are used in series to supply a nominal 24VDC. The
battery charger is compatible with any FACP that uses lead-acid batteries with a rating
of 25 AH (Amp Hours) to 75 AH. The FACP must have a feature that allows the
disabling of the control panel battery charger.
The CHG-75 can be configured for 120 VAC operation or 220/240 VAC operation via
jumper selection.
1.1 Features
• 120 VAC or 220/240 VAC operation via JP1 jumper selection
• Charger capacity of 25 AH to 75 AH
• Mounts in a BB-26, BB-55F, MS-9600 and MS-9200 enclosure
• Screw terminal connection for battery
• F2, 15 amp replaceable fuse provides battery current-limiting, short circuit and
overload protection
• Screw terminal connection for battery backup to other equipment
• F3, 15 amp replaceable fuse provides current-limiting and overload protection
for output to connected equipment
• Fail-safe Form-C trouble relay rated for 2 amps @ 30 VDC (resistive)
• Ground fault detection circuit which can be disabled by cutting jumper JP2
• Battery and charger voltage supervision
• AC voltage supervision
• AC loss reporting delay option, jumper selectable for 8 or 16 hour delay
• Connectors for trouble input and trouble output which direct CHG-75 troubles to
FACP and allows daisy-chaining of external troubles through the charger without
affecting charger operation
• Master trouble input allows monitoring of another device or zone
• Connectors for optional AM-1 ammeter and VM-1 voltmeter
• LEDs for monitoring charger condition
• Screw terminal connection for SLC loop
• Direct SLC interface for charger trouble and/or AC loss reporting to the FACP

Product Description Specifications
8CHG-75 PN 51315:A 08/01/01
1.2 Specifications
Primary (AC) Power - TB1, Terminals 1 (Hot), 2 (Neutral) & 3 (Earth)
120 VAC, 60 Hz, 2.05 amps maximum
220/240 VAC, 50 Hz, 1.14 amp maximum (JP1 cut)
Fuse F1 - 6.25 amp (slow blow 3AG)
Wire size: minimum 14 AWG with 600 volt insulation
Secondary Power (Battery) Charging Circuit - TB2, Terminals 1 (+) & 2 (-)
Supports lead-acid batteries only
Float Charge Voltage: 27.6 VDC
Maximum Charge Current: 4.5 amps (peak)
Maximum Battery Capacity: 75 AH
Supervised and Current-limited: F2 - 15 amp replaceable fuse
24 VDC Secondary (Battery) Input Power
The CHG-75 current consumption from the battery is as follows:
• During AC Loss: 60 mA
• With AC Present: 0 mA
Note: use these values in battery calculations for host FACP
Battery Output - TB2, Terminals 3 (+) & 4 (-)
Provides battery backup connection to other loads
Current-limited: F3 - 15 amp replaceable fuse
SLC (Signal Line Circuit) Connector - TB3, Terminals 1(B+), 2(A+), 3(B-) & 4(A-)
Provides connection to an addressable FACP (Fire Alarm Control Panel) SLC loop. A
built-in addressable monitor module can be used to indicate a charger trouble condition
or loss of AC by programming the FACP to monitor the address assigned to the charger.
Voltage: 24 VDC nominal, 27.6 VDC maximum
Maximum Loop Current: 400 mA (short circuit) or 100 mA (normal)
Maximum Loop Resistance: 40 ohms
Supervised and Power-limited
Trouble Contact Rating - TB4, Terminals 1 (C), 2 (NO) & 3 (NC)
Fail-safe Form-C Relay Contacts: rated for 2 amps @ 30 VDC (resistive)
Trouble In and Out Connectors - J1 (In) & J2 (Out)
Trouble In is an open collector circuit which can be used to monitor trouble conditions
on other equipment. It can be connected to the trouble bus of a peripheral, such as a
power supply, which is compatible with open collector circuits.
Trouble Out can be used to send the Trouble In signal and/or charger trouble signal to a
monitoring circuit on an FACP (daisy chain).
Trouble In Master - J3
Circuit monitors trouble from other devices by looking for a ground condition. When
input is brought to ground potential, charger will operate trouble relay

LED Indicators Product Description
CHG-75 PN 51315:A 08/01/01 9
1.3 LED Indicators
LEDs are provided on the battery charger circuit board to monitor various conditions:
• AC LED - green LED indicates AC power is present
• Trouble LED - yellow LED turns on for charger troubles or trouble indication
from the Master Trouble Input
• Low Battery LED - yellow LED turns on when the battery voltage drops too low
• Charging LED - yellow LED indicates battery is being charged, turns off when
the CHG-75 is trickle charging
• Ground Fault LED - yellow LED turns on to indicate ground fault on the charger
• SLC Communication LED - green LED indicates SLC communication with
FACP
1.4 Charger Maintenance
The charger does not require regular maintenance. While installing the charger,
however, do not cut any jumpers when power is applied and 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 F2 and F3 (15 A, P/N:
12057) provide overload and reverse-polarity protection. Replace a blown
fuse with a fuse that has the same rating and type. Determine the cause of the
blown fuse.
✓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
batteries and all connections for loose wiring or short circuits.
✓Replacing Batteries - replace batteries only with the same charge rate and
capacity as the other batteries in the set. For example, if replacing one of four
25 AH batteries, make sure the replacement battery has the same charge rate
and capacity as the other three batteries.

Installation and Configuration Precautions
10 CHG-75 PN 51315:A 08/01/01
SECTION 2 Installation and Configuration
2.1 Precautions
Battery and Charger Precautions
When installing the CHG-75 battery charger, observe the following precautions:
❒Do not cut any jumpers when power is applied to the charger
❒Observe polarity when making connections
❒Do not connect the Battery Interconnect Cable until instructed
❒Mounting batteries requires proper mounting hardware. Follow the battery
manufacturer’s installation instructions
❒Be careful when lifting and handling batteries: batteries are heavy
❒Batteries, although sealed, contain sulfuric acid which can cause severe burns to
the skin and eyes, and can destroy fabrics. If contact is made with sulfuric acid,
immediately flush the skin or eyes with water for 15 minutes and seek immediate
medical attention
❒Charging batteries can cause flammable hydrogen gas
2.2 Charger Connections, Jumpers and Switches
The following figure illustrates all connections, jumpers and switches needed to
maintain, configure and operate the charger:
!
JP1
JP3
SW1
JP4
TB3 TB4
TB2
ENABLE
AC DELAY
16 HR
DELAY
TENS
ONES
CUT FOR
240VAC
GND FLT
DISABLE
A M-1 EN AB LE
ADDRESS
ON OFF
AM-1
JP5
JP2
F1 F2
J4
J1 J2 J3
F3
TB1
HOT
-
+
BATT
+ OUT TO FACP
-
EARTHNEUT
15 15
A- B- A+ B+ NC NO C
0
43
92
6
1
578
12
13
15
14
1011
0
43
926
1
578
12
13
15
14
1011
Figure 2.1 Charger Components
JP1 - In for 120VAC
Cut for 240VAC
Earth - TB1 Terminal 3
AC Neutral - TB1 Terminal 2
AC Hot - TB1 Terminal 1
(supervised)
SLC A- (TB3 Terminal 4)
SLC B- (TB3 Terminal 3)
SLC A+ (TB3 Terminal 2)
SLC B+ (TB3 Terminal 1)
(supervised & power-limited)
Relay*
Normally Closed (TB4 Terminal 3)
Normally Open (TB4 Terminal 2)
Common (TB4 Terminal 1)
J3 - Master Trouble In
J2 - Trouble Out
J1 - Trouble In
Low Battery - Yellow LED
Charging - Yellow LED
Trouble - Yellow LED
Ground Fault - Yellow LED
AC Power - Green LED
SLC Communication - Green LED
- Out to FACP (TB2 Terminal 4)
+ Out to FACP (TB2 Terminal 3)
- Battery, supervised (TB2 Terminal 2)
+ Battery, supervised (TB2 Terminal 1)
J4 Connector for AM-1 Ammeter
JP5 - Cut to Install AM-1
JP4 - Cut for 16 Hour AC Reporting Delay
JP3 - Cut for 8 or 16 Hour AC Reporting Delay
SW1 - On = SLC Communication Enabled
Off = SLC Communication Disabled
SLC Addressing Switches
SW2 Tens Switch
SW3 Ones Switch
CAUTION!
DO NOT Cut any Jumpers
if power is applied!
JP2 - Cut to
Disable
Ground Fault
Detection
chg75brd.cdr
*Relay is fail-safe and contact
designations are shown with power
applied and no troubles on the charger.

Charger Configuration Installation and Configuration
CHG-75 PN 51315:A 08/01/01 11
2.3 Charger Configuration
2.3.1 SW2 & SW3 SLC Addressing Switches
An addressable monitor module has been incorporated into the circuitry of the CHG-75
to allow a host FACP (Fire Alarm Control Panel) to monitor the charger condition via
its SLC. This monitor module will create an open circuit condition when any local
charger trouble occurs. If AC power is lost, the monitor module will create a short
condition which will be seen by the FACP immediately, even if AC delay is enabled.
By addressing and connecting the charger to an addressable control panel’s SLC, the
panel can be programmed to monitor this module for activation.
Rotary switches SW2 & SW3 are used to address the CHG-75 for connection to the
addressable control panel’s SLC. The switches must be set to a unique address which
has not been programmed for any other device on the SLC
To set the desired address, turn switch SW2 to the tens digit of the address and SW3 to
the ones digit of the address. For example, to set the charger to address 125, position
SW2 so the arrow points to 12 and position SW3 so the arrow points to 5.
In the following example, the power supply has been set to address 68, with SW2 Tens
switch pointing to 6and SW3 Ones switch pointing to 8.
2.3.2 SW1 SLC Communication Enable Switch
Slide switch SW1 is used to enable and disable the SLC communication between the
CHG-75 and the FACP. Positioning SW1 to the left (ON) will enable SLC
communication while positioning the switch to the right (OFF) will disable
communication. Refer to Figure 2.1 on page 10, for the location of switch SW1.
Note that if the FACP has been programmed to monitor the charger via the SLC,
positioning SW1 to the right (OFF) position will disable SLC communication between
the charger and control panel, causing the FACP to indicate a communication fault for
the charger address.
2.3.3 AC Loss Reporting Delay - Central Station Applications
If a Digital Alarm Communicator (DACT) is being used, the reporting of an AC loss
condition to a Central Station must be delayed. This will delay the activation of the
trouble bus and Form-C trouble contacts when the AC fails. The charger can be
configured for an 8-hour or 16-hour delay as follows:
1. JP3 - Cut jumper JP3 to enable a delay in reporting AC loss
2. JP4 - Leave jumper JP4 in to delay AC loss reporting for 8 hours
Cut jumper JP4 to delay AC loss reporting for 16 hours
Refer to Figure 2.1 on page 10, for location of the jumpers.
TENS
ONES
0
43
92
6
1
578
12
13
15
14
10
11
0
43
926
1
578
12
13
15
14
1011
Figure 2.2 CHG-75 Addressing
SW2
SW3
chg75add.cdr

Installation and Configuration Mounting the Charger
12 CHG-75 PN 51315:A 08/01/01
2.3.4 Ground Fault Detection Disable
Cut jumper JP2 to disable reporting of a local ground fault condition. The charger’s
ground fault detection circuit might be disabled when the charger is connected to
equipment with its own ground fault detection circuit to prevent competition between
the two circuits. Note that Ground Fault detection is required in Canada. Refer to
Figure 2.1 on page 10, for location of the jumper.
2.3.5 AM-1 Ammeter Enable
Cut jumper JP5 to enable the operation of the AM-1 Ammeter when installed on the
CHG-75 charger. Refer to Figure 2.1 on page 10, for location of the jumper.
2.4 Mounting the Charger
2.4.1 Mounting the Charger in an FACP
The CHG-75 can be mounted in the bottom of the MS-9600 backbox, using the self-
tapping screws included with the charger. In a similar fashion, the supplied nuts can be
used to mount the charger to pem studs located in the bottom of the MS-9200 backbox.
A separate battery box must be used to house the batteries when employing these
configurations. Figure 2.3 illustrates the CHG-75 mounting location in the MS-9600.
The pem studs are located in the same area in the MS-9200 backbox .
Note: The CHG-75 must be mounted in the same room and within 20 feet of the FACP.
+BAT TERY -
LCD D ISPL AY
KEYPAD I/F
S ECU RITY O PT BD
OPT DACT
HOT
CB1
J3
J12
J2
TB1 TB2
TB3
JP3
JP2
SW1
JP5
JP6
J17 J16
J6 J8
J7
J10 J11
CUT TO
DISABLE
LOCAL
CHARGER
DISABLE
GND
FLT
CUT TO
MONITOR 4XTM
OPT S LC
4XTM O P T B D
TB4 TB5 TB6 TB7 TB8
NEUT EARTH
Figure 2.3 MS-9600 Backbox
mounting holes for CHG-75
MS-9600 FACP
9600powr.cdr

Mounting the Charger Installation and Configuration
CHG-75 PN 51315:A 08/01/01 13
2.4.2 Mounting the Charger in a BB-55F Battery Box
The CHG-75 can mount in a BB-55F Battery Box at the location indicated in Figure
2.4. Use the supplied self-tapping screws to secure the charger to the backbox.
2.4.3 Mounting Charger in BB-26 Battery Box
The CHG-75 can mount in a BB-26 Battery Box at the location indicated in Figure 2.5.
Use the supplied nuts to secure the charger to the backbox mounting studs.
Figure 2.4 BB-55F Battery Box
mounting holes for CHG-75
mounting holes for AM-1 or VM-1
Note: left and right side of
backbox have same layout.
bb55f.cdr
Figure 2.5 BB-26 Battery Box
mounting studs for CHG-75
mounting hole for AM-1 or VM-1
Note: left and right side of
backbox have same layout.
bb26.cdr

Installation and Configuration UL Power-limited Wiring Requirements
14 CHG-75 PN 51315:A 08/01/01
2.5 UL Power-limited Wiring Requirements
Power-limited and nonpower-limited wiring must remain separated in the cabinet. All
power-limited circuit wiring must remain at least 0.25” away from any nonpower-
limited circuit wiring. Furthermore, all power-limited circuit wiring and nonpower-
limited circuit wiring must enter and exit the cabinet through different conduits.
Examples are shown in the following illustrations. Your specific application may
require different conduit knockouts to be used. Any conduit knockouts may be used.
For power-limited applications, use of conduit is optional.
+BATTERY -
LCDDISPLAY
KEYPAD I/F
1
2
3
HOT
CB1
J3
J12
TB1 TB2
JP4
J6 J8
J7
NEUT EARTH
*
0 #
PRS TUV WXY
QZ
-/.
78 9
RECALL
HOLD2 SEC
RESET
MODE
JP1
JP3
SW 1
JP4
TB3 TB4
TB2
ENABLE
AC DELAY
16 HR
DELAY
TEN S
ONES
CU T FO R
240VAC
GND FLT
DISABLE
AM-1ENABLE
ADDRESS
ON OFF
AM-1
JP5
JP2
F1 F2
J4
J1 J2 J3
F3
TB1
HOT
-
+
BATT
+ OUT TO FACP
-
EARTHNEUT
15 15
A- B- A+ B+ NC NO C
0
43
92
6
1
57
8
12
13
15
14
1011
0
43
926
1
578
12
13
15
14
1011
JP1
JP3
SW 1
JP4
TB3 TB4
TB2
ENABLE
AC DELAY
TENS
ONES
CUT FO R
240 VAC
GND FLT
DISABLE
ADDRESS
ON OFF
AM-1
JP5
JP2
F1 F2
J4
J1 J2 J3
F3
TB1
HOT
-
+
BATT
+ OU T TO FA CP
-
EARTHNEUT
15 15
A- B- A + B+ NC N O C
0
439 2
6
1
578
12
1315
14
1011
0
439 26
1
578
12
1315
14
1011
Figure 2.6 UL Power-limited Wiring Examples
MS-9600 FACP
BB-55F
nonpower-limited circuit
nonpower-limited circuit
nonpower-limited circuit
power-limited circuit
power-limited circuit
nonpower-limited circuit
nonpower-limited circuit
BB-26
power-limited circuit
nonpower-limited circuit
nonpower-limited circuit
nonpower-limited circuit
nonpower-limited circuit
chg7to96.cdr
bb55fchg.cdr
chg7bb26.cdr

Optional Voltmeter/Ammeter Installation Installation and Configuration
CHG-75 PN 51315:A 08/01/01 15
2.6 Optional Voltmeter/Ammeter Installation
An ammeter (AM-1) or voltmeter (VM-1) can be installed for use with the CHG-75
charger. If installing an AM-1 or VM-1, mount the meter to a BB-26 or BB-55F battery
box as illustrated below.
VM-1 Voltmeter Connections - the VM-1 can be installed on the CHG-75 to provide a
visual indication of the battery/charger voltage. When the battery is disconnected, the
voltmeter measures charger voltage only. The VM-1 can mount to a BB-26 or BB-55F
battery box. To connect the VM-1 to the CHG-75:
✓Connect the VM-1 positive lead to TB2 Out (+)
✓Connect the VM-1 negative lead to TB2 Out (-)
✓Mount the VM-1 into a mounting slot on the front of the battery box
AM-1 Ammeter Connections - the AM-1 can be installed on the CHG-75 to provide a
visual indication of the charger current. The AM-1 can mount to a BB-26 or BB-55F
battery box. To connect the AM-1 to the CHG-75:
✓Cut jumper JP5 on the CHG-75
✓Connect the AM-1 harness to connector J4 on the CHG-75. Be sure to
observe polarity
✓Mount the AM-1 into a mounting slot on the front of the battery box
Figure 2.7 Mounting AM-1 or VM-1 on BB-55F Battery Box
metertobb-55f.cdr
JP4
TB4
TB2
ENABLE
AC DELAY
16 HR
DELAY
GND FLT
DISABLE
AM-1 ENABLE
AM-1
JP5
JP2
F2
J4
J1 J2 J3
F3
-
+
BATT
+ OUT TO FACP
-
15 15
NC NO C
AM-1
VM-1
Figure 2.8 Wiring AM-1 or VM-1 to CHG-75
+
-
+ AM-1
- AM-1
+ VM-1
- VM-1
To Load/FACP
- Out
+ Out
chg75amvm.cd

Installation and Configuration Connecting AC Power to the Charger
16 CHG-75 PN 51315:A 08/01/01
2.7 Connecting AC Power to the Charger
CAUTION! Disconnect all sources of power before making any connections, cutting
any jumpers or servicing the charger.
AC power connections are made to TB1 of the CHG-75 battery charger. Primary power
source for the CHG-75 is 120 VAC, 60 HZ, 2.05 amps or, if JP1 is cut, 220/240 VAC,
50 Hz, 1.14 amps. Run a pair of wires (with ground conductor) from the protected
premises main breaker box to TB1. As per National Electric Code, use 14 AWG (1.6
mm O.D.) or heavier gauge wire with 600 volt insulation.
The following figure illustrates the steps for connecting the charger to the main AC
power source.
EARTH (ground)
HOT EARTH
NEUT
HOT EARTH
NEUT
HOT EARTH
NEUT
HOT EARTH
NEUT
Figure 2.9 Connecting AC Power
Step 1: Remove the plastic insulating
cover from TB1.
Step 2: Connect the Earth ground line
to TB1 Terminal 3.
Step 3: Connect the Primary
Neutral line to TB1 Terminal 2
Step 4: Connect the Primary Hot line to
TB1 Terminal 1. Check all connections,
then replace the plastic insulating cover.
TB1 TB1
Plastic
insulating
cover
EARTH (ground)
TB1
EARTH (ground)
NEUTRAL (line in)
TB1
NEUTRAL (line in)
HOT (line in)

Connecting Batteries to the Charger Installation and Configuration
CHG-75 PN 51315:A 08/01/01 17
2.8 Connecting Batteries to the Charger
Batteries ranging from 25 AH to 75 AH can be connected to the charger. This section
provides illustrations and instructions for connecting two or four batteries.
2.8.1 Connecting Two Batteries
The following steps must be followed when connecting two batteries to the charger:
1. Remove all power sources to the charger
2. Connect the battery negative (-) cable to TB2, Terminal 2 on the charger (labeled
BATT -) as illustrated in Figure 2.10
3. Connect the battery positive cable to TB2, Terminal 1 on the charger (labeled
BATT +) as illustrated in Figure 2.10
4. Do not connect the Battery Interconnect Cable at this time. Proceed to the
section titled "Powering the Charger" on page 25
TB2
P4
P3
JP5
TB1
F1CB1
JP2
JP1
P5
P7
R27
P2
EARTH GND AC NEUTRAL AC HOT
+ 24R C OMM O N + 24 C OMMO N
POWER LIMITED
MPS- 2 4AE PC C REV __ _
MPS- 2 4AP CC REV ___
MPS24A.
-
+
-
+
JP1
JP3
SW 1
JP4
TB3 TB4
TB2
ENABLE
AC DELAY
16 HR
DELAY
TENS
ONES
CU T F OR
240VAC
GND FLT
DI SAB LE
AM-1 ENABLE
ADDRESS
ON OFF
AM-1
JP5
JP2
F1 F2
J4
J1 J2 J3
F3
TB1
HOT
OUT +
BAT + OUT
-
BAT -
EARTH
NEUT
15 15
A- B - A+ B+ NC NO C
0
43
92
6
1
578
12
13
15
14
10
11
0
43
926
1
578
12
13
15
14
10
11
BAT + BAT -
Figure 2.10 Connecting Two 25 AH Batteries
Power Supply
CHG-75
25 AH
12V
25 AH
12V
Battery
Interconnect
Cable *
Battery +
Battery -
Out +
Out -
-
+
*Do not connect the Battery Interconnect Cable at this time.
Refer to "Powering the Charger" on page 25.
!
AC Power
Hot
Neutral
Earth
Battery
Terminal
chg7mp2f.cdr

Installation and Configuration Connecting Batteries to the Charger
18 CHG-75 PN 51315:A 08/01/01
2.8.2 Connecting Four Batteries
The following steps must be followed when connecting four batteries to the charger:
1. Remove all power sources to the charger
2. Connect the batteries in pairs by connecting the battery negative terminals and
the battery positive terminals as illustrated in Figure 2.11
3. Connect the battery negative (-) cable to TB2, Terminal 2 on the charger (labeled
BATT -) as illustrated in Figure 2.11
4. Connect the battery positive cable to TB2, Terminal 1 on the charger (labeled
BATT +) as illustrated in Figure 2.11
5. Do not connect the Battery Interconnect Cable at this time. Proceed to the
section titled "Powering the Charger" on page 25
TB2
P4
P3
JP5
TB1
F1CB1
JP2
JP1
P5
P7
R27
P2
EARTH GND AC NEUTRAL AC HOT
+24R COMMON +24 COMMON
POWER L IMITED
MPS-24AEPCC REV ___
MPS-24 APCC REV ___
MPS24A.
-
-
+
+
-
-
+
+
JP1
JP3
SW 1
JP4
TB3 TB4
TB2
ENABLE
AC DELAY
16 HR
DEL AY
TENS
ONES
CU T FO R
240VAC
GND FLT
DISABLE
AM-1 ENABLE
ADDR ESS
ON OFF
AM-1
JP5
JP2
F1 F2
J4
J1 J2 J3
F3
TB1
HOT
OUT +
BAT + OUT
-
BAT -
EARTHNEUT
15 15
A- B- A+ B+ NC NO C
0
43
92
6
1
578
12
13
15
14
1011
0
43
926
1
578
12
13
15
14
10
11
BAT + BAT -
Figure 2.11 Connecting Four Batteries to the Charger
Power Supply
CHG-75
25 AH
12V
25 AH
12V
Battery
Interconnect
Cable*
Battery +
Battery -
Out +
Out -
-
+
25 AH
12V
25 AH
12V
*Do not connect the Battery Interconnect Cable at this time.
Refer to "Powering the Charger" on page 25
!
AC Power
Hot
Neutral
Earth
Battery
Terminal
chg7m42f.cdr
Battery
Interconnect
Cable*

Connecting the Charger to a Load Installation and Configuration
CHG-75 PN 51315:A 08/01/01 19
2.9 Connecting the Charger to a Load
This section provides three 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.
2.9.1 Connecting the Charger to a Single Load
The CHG-75 is designed to provide additional charging capability to an existing FACP
power supply. The charger can be connected to a single power supply as illustrated in
Figure 2.12.
To connect the charger to a single load:
1. Connect the Battery (+) and Battery (-) terminals of the power supply to the
CHG-75 Output Circuit TB2, Terminal 3 (Out +) and Terminal 4 (Out -) as
illustrated in Figure 2.12
2. Connect the batteries to the CHG-75 (refer to Figure 2.10 or Figure 2.11)
TB2
P4
P3
JP5
TB1
F1CB1
JP2
JP1
P5
P7
R27
P2
EARTH GND AC NEUTRAL AC HOT
+24R COMMON +24 COMMON
POWER L IMIT ED
MPS- 24 AE PC C R EV __ _
MPS- 24 AP CC REV ___
MPS24A.
JP1
JP3
SW 1
JP4
TB3 TB4
TB2
ENABLE
AC D ELAY
16 HR
DELAY
TENS
ONES
CU T FO R
240V AC
GND FLT
DISABLE
AM-1 ENABLE
ADDRESS
ON OFF
AM-1
JP5
JP2
F1 F2
J4
J1 J2 J3
F3
TB1
HOT
OUT +
BAT + OUT
-
BAT -
EARTHNEUT
15 15
A- B- A+ B+ NC NO C
0
43
92
6
1
578
12
13
15
14
1011
0
43
926
1
578
12
13
15
14
1011
BAT + BAT -
Figure 2.12 Typical Charger Wiring to Single Load
Power Supply
CHG-75
Battery +
Battery -
Out +
Out -
AC Power
Hot
Neutral
Earth
Battery
Terminal
Battery -
Battery +
chg7pwrs.cdr

Installation and Configuration Connecting the Charger to a Load
20 CHG-75 PN 51315:A 08/01/01
2.9.2 Connecting the Charger to an MS-9200
The charger can be connected to an FACP power supply, such as an MS-9200, by
disabling the local charger. The MS-9200 charger is disabled by cutting jumper JP1.
WARNING ! Do not attempt to connect the CHG-75 to older versions of the MS-9200
FACP main circuit board, which does not allow disabling of the FACP battery charger
(no JP1 jumper). System damage will result.
To connect a charger to the MS-9200:
1. Disconnect all power (AC and DC) from the MS-9200 and CHG-75
2. Cut jumper JP1, which is located on the MS-9200 main circuit board, to disable
the FACP battery charger
3. Disconnect the battery ends of the battery cable connected to J2 on the MS-9200.
Cut off the battery connectors and strip the ends of the wire.
4. Connect the stripped wire ends to the CHG-75 Output Circuit TB2, Terminal 3
(Out +) and Terminal 4 (Out -) as illustrated in Figure 2.13. Be certain to observe
proper polarity.
5. Connect the batteries to the charger (refer to Figure 2.10 and Figure 2.11).
24V U NR EG 24 V N O NRS 24 V R ST BELL 2 POWER BELL 1 POWER SUPV ALAR M TROUBLE PC/PRINTER
TE RM CO M M
GND FAULT
DISABLE
TR AN SFO R M ER 1
TRANSFO RMER 2
- +
BATT ER Y
TROUBL E
RS-232
PC/PRINTER
RS-485
TERM.MODE
+ - + - + -
B+ A+ A - B- B+ A+ A - B- NO C NO NC C NO NC C A B B+ A+ B- A-
1 COM M 2
ACS SHIELD SLC SLC
OUT+ IN+ OUT- IN-
T
B
4
T
B
2
T
B
1
T
B
3
T
B
7
T
B
5
T
B
6
J16
J6
JP3
JP1
CAUTION
HIGH VOLTA GE
J3
TB8
J19
J17
JP4
SW 1
SW 3
SW 2
CAUTION!
HIGH VOLTAGE
-
+
-
+
JP1
JP3
SW 1
JP4
TB3 TB4
TB2
ENABLE
AC DELAY
16 HR
DELAY
TE NS
ONES
CU T FO R
240VAC
GND FLT
DISABLE
AM-1 ENABLE
ADDRESS
ON OFF
AM-1
JP5
JP2
F1 F2
J4
J1 J2 J3
F3
TB1
HO T
OUT +
BAT + OUT
-
BAT -
EARTHNEUT
15 15
A- B- A+ B+ NC NO C
0
43
926
1
578
12
13
15
14
10
11
0
43
926
1
578
12
13
15
14
10
11
Figure 2.13 CHG-75 Wiring to MS-9200
Battery -
Battery +
+
+
-
-
+
-
Battery
Interconnect
Cable*
MS-9200
CHG-75
25 AH
12V
25 AH
12V
AC Power
Hot
Neutral
Earth
Out -
Out +
Cut JP1 for this
application
chg79200.cdr