Fire-Lite CHG-75 User Manual

PN: 51315:A ECN 01-437

Battery Charger

CHG-75

Document #51315

08/01/01 Revision:

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 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 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.

cated, a developing 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.

If detectors are not so lo-

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Installation Precautions

Adherence to the following will aid in problem-free installation with long-term reliability:

WARNING -

nected to the fire alarm control panel.

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 -

Changes.

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.

Several different sources of power can be con-

Disconnect all sources

System Reacceptance Test after Software

To ensure proper system operation, this product

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.

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.

Consult with the Techni-

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.

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Notes

4 CHG-75 PN 51315:A 08/01/01

Table of Contents

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

CHG-75 P/N: 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

Before proceeding, the installer should be familiar with the following documents.

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)

6 CHG-75 PN 51315:A 08/01/01

Features

Product Description

SECTION 1

1.1 Features

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.

• 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

CHG-75 PN 51315:A 08/01/01 7

Product Description

1.2 Specifications

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

8 CHG-75 PN 51315:A 08/01/01

LED Indicators

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:

Product Description

✓ Overload and reverse-polarity protection

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

make sure that corrosive effects to the batteries do not affect the charger or cabinet.

✓ Troubleshooting

loose connections. If you encounter problems, inspect the charger, the batteries and all connections for loose wiring or short circuits.

✓ Replacing Batteries

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.

- periodically inspect the batteries for corrosion and

- most problems with a charger are due to faulty batteries or

- replace batteries only with the same charge rate and

- fuses F2 and F3 (15 A, P/N:

CHG-75 PN 51315:A 08/01/01 9

Installation and Configuration

Precautions

SECTION 2

Installation and Configuration

2.1 Precautions

Battery and Charger Precautions

When installing the CHG-75 battery charger, observe the following precautions:

❒

cut any jumpers when power is applied to the charger

Do not

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:

CAUTION!

DO NOT

Cut any Jumpers

if power is applied!

JP1 - In for 120VAC Cut for 240VAC

JP1

CUT FOR 240VAC

Ground Fault - Yellow LED

SLC Communication - Green LED

SLC Addressing Switches

SW2 Tens Switch

TB1

HOT

SW3 Ones Switch

EARTHNEUT

Earth - TB1 Terminal 3 AC Neutral - TB1 Terminal 2 AC Hot - TB1 Terminal 1 (supervised)

*Relay is fail-safe and contact designations are shown with power applied and no troubles on the charger.

Figure 2.1 Charger Components

- Battery, supervised (TB2 Terminal 2)

+ Battery, supervised (TB2 Terminal 1)

J4 Connector for AM-1 Ammeter

JP4 - Cut for 16 Hour AC Reporting Delay

JP5 - Cut to Install AM-1

JP3 - Cut for 8 or 16 Hour AC Reporting Delay

SW1 - On = SLC Communication Enabled Off = SLC Communication Disabled

Low Battery - Yellow LED

Charging - Yellow LED

Trouble - Yellow LED

AC Power - Green LED

TENS

12 13

ONES

SLC A- (TB3 Terminal 4)

SLC B- (TB3 Terminal 3) SLC A+ (TB3 Terminal 2) SLC B+ (TB3 Terminal 1)

(supervised & power-limited)

Normally Closed (TB4 Terminal 3)

Normally Open (TB4 Terminal 2)

Common (TB4 Terminal 1)

- Out to FACP (TB2 Terminal 4)

+ Out to FACP (TB2 Terminal 3)

AM-1 ENABL E

ENABLE AC DELAY

JP4

JP5

J1 J2

JP2

ADDRESS

SW1

ON OFF

TB3

A- B- A+ B+

JP3

16 HR DELAY

TB4

NC NO C

Relay*

AM-1

TB2

BATT

OUT TO FA CP

GND FLT DISABLE

chg75brd.cdr

JP2 - Cut to Disable Ground Fault Detection

J3 - Master Trouble In J2 - Trouble Out J1 - Trouble In

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