2.2.1.1 Replacing the fuse
To replace the fuse, complete the following steps:
1. At the breaker, remove the AC power from the control unit.
2. Remove the insulating cover of the FACU. The insulating cover has a high voltage warning on the front.
3. Open the flap cover and remove the AC mains wiring connected to TB1.
4. Remove the fuse F1 from the fuse holder and check if the fuse is blown.
5. If the fuse is blown, replace it with a fuse that has the following ratings:
- Voltage: 350 VAC
- Current: 4 A
- The fuse must be type 209 by Littlefuse.
Note: Only a qualified service technician can replace the fuse with the specified rating 350 VAC and 4 A.
6. Connect to the mains and reattach the safety cover before switching on the mains.
2.2.2 Battery specification
Note: Only use sealed lead acid batteries.
Maximum battery charger capacity: 12.7 Amps Hours
The 2004-9101 FACU can hold a maximum of two 12 VDC, 7 Ah batteries.
The dimensions for a single battery must be within: 151 mm x 65 mm x 94 mm (L x W x H).
Batteries up to 12.7 Ah require an external battery cabinet: 4009-9801.
2.2.2.1 Replacing the batteries
1. If the AC power fails, the system operates from standby batteries only for a specified time and only if the batteries are properly
maintained and replaced regularly.
2. This system meets NFPA requirements for operation at 32ºF to 120ºF (0ºC to 49ºC), up to 93% relative humidity at 90ºF (32ºC).
However, the useful life of the system's standby batteries and the electronic components may be adversely affected by extreme
temperature ranges and humidity.
To replace the batteries, complete the following steps:
1. Remove the AC power at the breaker from the control unit.
2. Remove the insulating cover of the FACU. The insulating cover has a high voltage warning on the front.
3. Remove the red wire from the positive terminal of the battery.
4. Remove the black wire from the negative terminal of the second battery.
5. Replace the batteries with new batteries that have the correct Ah rating.
page 8 579-1402 Rev B
2004 Foundation Series Fire Alarm Control Unit Installation Guide
To Next Page
Loading...
