Installation guide

Page 7
Installation
2841 E. Industrial Drive Springfield, MO 65802-6310 800-641-4282
XR5FC/XR5SL Installation Guide
Secondary Power Supply
6.1 Battery terminals 3 and 4
Connect the black battery lead to terminal 4 on the panel and then to the negative terminal of the battery.
The negative terminal connects to the enclosure ground internally through the XR5FC and XR5SL panel
circuit board. Connect the red battery lead to terminal 3 on the panel and then to the positive terminal of the
battery. Observe polarity when connecting the battery.
The XR5FC and XR5SL panels are capable of recharging two 7.0Ah batteries (14 Amp/hours) within 24
hours.
Do not use battery backup with 24 VDC input: Do not connect batteries to the XR5FC and XR5SL panels
when powering the panels with 20 to 28.2 VDC voltage from a Fire Alarm Control Panel (FACP). The
XR5FC and XR5SL panels use the backup battery capability of the FACP for their standby requirements.
Use sealed lead-acid batteries only: Use the DMP Model 367, 12 VDC 7.0Ah sealed lead-acid
rechargeable battery. Batteries supplied by DMP or manufactured by Eagle Picher or Yuasa have been
tested to ensure proper charging with DMP products.
GEL CELL BATTERIES CANNOT BE USED WITH THE XR5FC AND XR5SL.
6.2 Earth ground
Terminal 4 of the XR5FC and XR5SL panels must be connected to earth ground using 14 gauge or larger
wire to provide proper transient suppression. DMP recommends connecting to a metal cold water pipe or
ground rod only. Do not connect to electrical conduit or a telephone company ground.
6.3 Replacement period
DMP recommends the battery be replaced every 3 to 5 years under normal use.
6.4 Discharge/recharge
The battery charging circuit on the XR5FC and XR5SL panels float charge at 13.9 VDC at a maximum
current of 1.2 Amps using the Model 320 Transformer. The total current available is reduced by the
combined auxiliary current draw from terminals 6, 7, 15, 17, 19, and 21. The various battery voltage levels
are listed below:
Battery Trouble: Below 11.9 VDC
Battery Restored: Above 12.6 VDC
6.5 Battery supervision
The XR5FC and XR5SL panels test the battery once every hour when AC power is present on terminal 1
and 2. The test lasts for five seconds and consists of the panels putting a load on the battery. If, during the
test, the battery voltage falls below 11.9 VDC a low battery is indicated. The test is then repeated every two
minutes until the battery charges above 12.6 VDC, the battery restored voltage.
If the low battery does not recharge and is replaced with a fully charged battery, the charged battery will not
be detected until the next two minute test is done.
If AC power fails during normal system operation, a low battery is indicated any time the battery voltage
falls below 11.9 VDC.