LED Indicator
Condition
1-3 The battery charge current is too high.
1-4 The battery charge current is low while the charger output current control is MAXed.
BATTERY LOW (no CHARGER
FAULT)
The unit is operating from battery and the battery voltage is below 21 V OR The unit is
operating from AC power and the battery voltage is below 24 V.
BATTERY LOW and CHARGER
FAULT
The battery impedance exceeds the acceptable limit. Install new batteries.
BATTERY DISCON
Standby batteries are disconnected.
HEARTBEAT
The power supply is functioning.
DC OUT ON
The 24V DC supply is supplying power to the load.
Connecting Standby Batteries
The XT+ provides connections for two standby batteries. If your required battery capacity exceeds the space
available in the cabinet, an appropriately-sized auxiliary UL listed battery cabinet suitable for fire alarm service
will be required. If needed, install that cabinet (wired close-nippled) adjacent to the unit to minimize battery lead
length.
WARNING!
Battery terminal shorts can cause a fire or an explosion. Do not permit battery terminals to short
while connecting standby batteries. Handle standby batteries with care.
1. Place two 12 VDC, VRLA, rechargeable, standby
batteries in the base of the cabinet.
2. Orient terminals of the standby batteries so that the
positive ( + ) terminal of one standby battery is facing
the negative ( - ) terminal of the other.
3. Connect the black wire of the power supply to the
negative ( - ) terminal of Battery 1.
4. Connect the red wire of the power supply to the pos-
itive ( + ) terminal of Battery 2.
5. Connect the jumper wire from the ( + ) of Battery 1
to the ( - ) of Battery 2.
Installation
VES Fire Detection Systems
XT+ Releasing Control Unit Installation Manual
Version 1.00 | December 2018 | MAN-1252VES
Page 23
