Notifier CHG-120 User Manual download pdf

DN-6040:A2 • 10/18/2012 — Page 1 of 2

CHG-120

Battery Charger

Power Supplies

DN-6040:A2 • E-191

General

The CHG-120 is a state-of-the-art battery charging system

designed for use with NOTIFIER Fire Alarm Control Panels

(FACPs). It is designed to charge lead-acid batteries between

25 and 120 ampere-hours (AH).

Features

• Charges sealed lead-acid batteries.

• Automatic float-type battery charger.

• Rated for batteries of 25 to 120 ampere-hours.

• Obtains full float voltage within 48 hours.

• For use on any 24-volt FACP which can handle the speci-

fied batteries and can disable the local charger.

• AC Fail delay (central station applications) per latest NFPA

requirements.

• Form-C Trouble contact.

• Dual outputs, for easy load distribution.

• Diagnostic LEDs:

– Primary AC On

– Charger Trouble.

– Ground Fault.

– Hi Charge.

– Lo Charge.

– Battery Voltage Level (3 LEDs).

– Low Battery.

• Black or red NFS-LBB(R) battery cabinet (optional).

• Field-selectable input voltage, 120 VAC or 230 VAC.

• Charges:

– 26 AH batteries within 9 hours.

– 55/60 AH batteries within 20 hours.

– 120 AH batteries within 38 hours.

NOTE: Values per NOTIFIER testing.

Construction and Operation

The CHG-120 consists of a PC board and mounting chassis.

Charging current is provided automatically when the battery

voltage falls below the charger’s output voltage.

Applications

Use the CHG-120 when batteries required for standby are

rated between 25 to 120 AH.

CHG-120 Specifications

Primary AC (TB1):

– 115 VAC, 60 Hz, 2 A.

– 230 VAC, 50 Hz, 1 A.

Form-C relay (TB3): 5 A at 30 VDC.

Float charge voltage: 27.6 VDC.

Maximum charging current: 4.5 A.

Fuses F1-F3: 15 A.

Battery sizes: 26 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.

Installation

The CHG-120 has a variety of mounting options. It can be

mounted in either a CAB-4 Series backbox or remotely in the

NFS-LBB Battery Backbox. Install the CHG-120 within 20 feet

(6.096 m) of the main FACP.

When mounting in a CAB-4 Series backbox:

• The CHG-120 can be mounted in the main power supply

position, on the lower left of the CAB-4 Series backbox.

• Using self-tapping screws, the CHG-120 can be mounted in

the lower right position (normally, where the batteries are

mounted) of the CAB-4 Series backbox.

When mounting remotely in the NFS-LBB:

• The CHG-120 mounts in the left position of the backbox.

NOTE: Only one 55 AH battery or two 26 AH batteries will mount

with the charger board in the NFS-LBB.

NFS-LBB Battery Box Battery Configurations: The battery

backbox can mount configurations of batteries as follows:

• Without CHG-120 mounted internally:

– Up to two 26 AH batteries.

– Up to two 55/60 AH batteries.

– One 100 AH battery.

• With CHG-120 mounted internally:

– Up to two 26 AH batteries.

– One 55/60 AH battery.

– One 100 AH battery.

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Battery Charger 1
CHG-120 Features 2

Summary of Contents

Page 1 - Battery Charger

DN-6040:A2 • 10/18/2012 — Page 1 of 2CHG-120Battery ChargerPower SuppliesDN-6040:A2 • E-191GeneralThe CHG-120 is a state-of-the-art battery charging s

Page 2 - CHG-120 Features

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Notifier CHG-120 User Manual

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