PN: 51315:A ECN 01-437 Battery Charger CHG-75 Document #51315 08/01/01 Revision: A
Fire Alarm System Limitations While a fire alarm system may lower insurance rates, it is not a substitute for fire insurance! An automatic fire alarm system–typically made up of smoke detectors, heat detectors, manual pull stations, audible warning devices, and a fire alarm control with remote notification capability–can provide early warning of a developing fire. Such a system, however, does not assure protection against property damage or loss of life resulting from a fire.
Installation Precautions Adherence to the following will aid in problem-free installation with long-term reliability: WARNING - Several different sources of power can be connected to the fire alarm control panel. Disconnect all sources of power before servicing. Control unit and associated equipment may be damaged by removing and/or inserting cards, modules, or interconnecting cables while the unit is energized.
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.
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.
Product Description Features Product Description SECTION 1 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.
Product Description Specifications 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.
Product Description LED Indicators 1.
Installation and Configuration Precautions Installation and Configuration SECTION 2 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.
Installation and Configuration Charger Configuration 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.
Installation and Configuration Mounting the Charger 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.
Installation and Configuration Mounting the Charger 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. Note: left and right side of backbox have same layout. mounting holes for CHG-75 bb55f.cdr mounting holes for AM-1 or VM-1 Figure 2.4 BB-55F Battery Box 2.4.
Installation and Configuration UL Power-limited Wiring Requirements 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 nonpowerlimited circuit wiring. Furthermore, all power-limited circuit wiring and nonpowerlimited circuit wiring must enter and exit the cabinet through different conduits. Examples are shown in the following illustrations.
Installation and Configuration Optional Voltmeter/Ammeter Installation 2.6 Optional Voltmeter/Ammeter Installation metertobb-55f.cdr 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. Figure 2.
Installation and Configuration Connecting AC Power to the Charger 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.
Installation and Configuration Connecting Batteries to the Charger 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.
Installation and Configuration Connecting Batteries to the Charger 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.
Installation and Configuration Connecting the Charger to a Load 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.
Installation and Configuration Connecting the Charger to a Load 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.
Installation and Configuration Connecting the Charger to a Load 2.9.3 Connecting the Charger to an MS-9600 The charger can be connected to an FACP power supply, such as an MS-9600, by disabling the local charger. The MS-9600 charger is disabled by cutting jumper JP3. To connect a charger to the MS-9600: 1. Disconnect all power (AC and DC) from the MS-9600 and CHG-75 2. Cut jumper JP3, which is located on the MS-9600 main circuit board, to disable the FACP battery charger 3.
Installation and Configuration Connecting the Charger to a Load 2.9.4 Connecting the Charger to Multiple Loads The CHG-75 charger can be connected to multiple loads, such as a main power supply, auxiliary power supply, auxiliary devices, etc., as illustrated in Figure 2.15. To connect the charger to multiple loads: 1. Connect the Battery + and Battery - terminals of an optional external device to the charger Output Circuit TB2, Terminal 3 (Out +) and Terminal 4 (Out -) 2.
Installation and Configuration Trouble Monitoring 2.10 Trouble Monitoring The CHG-75 charger has three connectors (J1, J2 & J3), a Form-C trouble relay (TB4) and an SLC (Signal Line Circuit - TB3) which can be used for trouble monitoring by an FACP. These connections are optional and, therefore, are not required for the proper operation of the charger. They are, however, necessary when the FACP is required to indicate a trouble condition for the charger.
Installation and Configuration Trouble Monitoring Trouble Monitoring Connections The following figure illustrates the various connections which can be made to allow trouble monitoring of the CHG-75. Any one or more of these connections can be made, depending on the capabilities of the host FACP.
Operation Powering the Charger Operation SECTION 3 3.1 Powering the Charger WARNING! Prior to applying power to the charger, perform the following check list: ❒ Follow the installation instructions described in the section titled "Installation and Configuration" on page 10 ❒ Verify the proper polarity on all connections between the charger and the batteries, loads and optional meters ❒ Make sure there are no short circuits between leads and between battery terminals.
Operation Normal Operation 3.3 Normal Operation SLC (if programmed and enabled) ✓ AC Power On ✓ Trouble System Trouble (with Master Trouble In Connected Short Circuit Ground Fault Battery Fault (low battery) Disconnected Battery AC Fail (with AC loss reporting delay enabled LED AC Fail Normal Operation While charging the batteries, the CHGING (charging) LED will turn on. When batteries are fully charged, the charger maintains a float charge of 27.6 VDC.
Index A AC LED 9 AC loss reporting delay 7 AC loss reporting delay 11 jumper selection 10 time selection 11 AC power see also primary power 16 addressing 11 example 11 addressing switches SW2 & SW3 11 AM-1 ammeter see also ammeter installation 15 ammeter 7 enable 12 installation 10, 15 B battery 7, 8 charger 8 connecting four batteries 18 connecting two batteries 17 connection to charger 17 interconnect cable 17, 18 lead-acid 7 output connector 8 replacement 9 battery cabinet 7 battery capacity 8 battery ch
AC 9 AC power 25 charging 9, 25 ground fault 9, 25 low battery 9, 25 normal operation 26 see also indicators 9 SLC communication 9, 25 status indicators 25, 26 trouble 9, 25 low battery LED 9 M maintenance charger 9 monitor module 11 monitoring trouble 23 mounting 7, 12 in BB-26 battery box 13 in BB55F battery box 13 in FACP 12 MS-9200 connecting charger 20 connection precaution 20 disabling onboard charger 20 MS-9600 connection to charger 21 onboard charger disable 21 N normal operation 26 O operation 25,
U UL power-limited wiring requirements 14 V VM-1 voltmeter see also voltmeter installation 15 voltmeter 7 voltmeter installation 15 CHG-75 PN 51315:A 08/01/01 29
Notes 30 CHG-75 PN 51315:A 08/01/01
Limited Warranty The manufacturer warrants its products to be free from defects in materials and workmanship for eighteen (18) months from the date of manufacture, under normal use and service. Products are date-stamped at time of manufacture. The sole and exclusive obligation of the manufacturer is to repair or replace, at its option, free of charge for parts and labor, any part which is defective in materials or workmanship under normal use and service.
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