Fire-Lite CHG-120F — remote battery charging system for Fire-Lite fire alarm control panels, for sealed lead-acid batteries of 25 to 120 ampere-hours.
The charger inside a control panel caps standby battery size. Where more capacity is needed than the panel can carry, the local charger is disabled and this automatic float-type charger maintains the set instead, reaching full float voltage within 48 hours.
- Battery sets of 25 AH to 120 AH; dual outputs for load distribution
- Float charge voltage 27.6 VDC; maximum charging current 4.5 A; 15 A fuses
- Primary AC selectable, 115 VAC 60 Hz 2 A or 230 VAC 50 Hz 1 A
- Form C trouble relay 5 A at 30 VDC, with AC fail delay for central station reporting
- Two fully discharged batteries charge in 9 hours at 25 AH, 20 at 55, 38 at 120
- Mounts in a BB-55F or red BB-55FR backbox; UL 864 and UL 1481, UL S1287
Fitting the board inside a BB-55F costs battery space: the box then takes one 55 AH battery or two 26 AH, not two 55 AH. The smaller Fire-Lite CHG-75 covers 25 to 75 AH with SLC trouble monitoring instead of dual outputs; neither data sheet names the other.
Documents
FAQ
When is the CHG-120F needed?
When the standby batteries are rated between 25 and 120 AH. It works with any 24-volt panel that can handle the batteries and can disable its local charger.
Where does it mount?
Remotely in the BB-55F (or red BB-55FR) battery backbox, in the left position, within 20 feet of the main FACP.
Which batteries fit with the charger in the BB-55F?
Up to two 26 AH batteries, one 55 AH battery, or one 100 AH battery. Without the charger inside, the box takes two 55 AH batteries.
How long does charging take?
Two fully discharged batteries charge in about 9 hours at 25 AH, 20 hours at 55/60 AH and 38 hours at 120 AH.
