Operation
TThe Xtralis Model VPS-VEA-115UL and VPS-VEA-230UL are power supplies that convert a 120VAC / 60Hz or
230VAC / 50Hz respectively input to 24VDC nominal output (see specifications). They are intended for use in applications
requiring UL Listing for Fire Protective Signaling. The units must be installed in accordance with the National Electric Code
(NFPA70), the National Fire Code (NFPA72), and all other applicable local codes necessary for compliance with the local
authority having jurisdiction.
Space is provided in the VPS-VEA-115UL and VPS-VEA-230UL power supply cabinet for up to two 12V / 35AH or
36AH batteries (configured for 24V). For a larger standby capacity in a single VESDA-E VEA installation or when more than
one VESDA-E VEA detector is to be powered, use model VEA-BAT battery enclosure to house up to two 12V / 35AH or
36AH batteries or use a UL1481, ULC-S527 or UL864 Listed enclosure
.
Operation Overview
The VPS-VEA-115UL and VPS-VEA-230UL is a power supply intended to power the VESDA-E VEA Detector Base
Unit plus up to two (2) VESDA-E VEA Detector Stacks (see battery table). A power failure indication is provided via a
dry relay contact (Form C) which transfers due to:
1. AC input loss,
2. a low AC input voltage,
3. a loss of battery voltage,
4. a short circuit of the battery leads or
5. a short circuit of any of the DC power outputs.
Refer to the wiring diagram located on the VEA unit for proper connections.
Note
: The screw terminals can accommodate up to two wires each, provided the wires sit under the terminal
clamp on opposite sides of the screw.
Power Supply Capacity and Recommended Battery Requirements
Battery requirements and recommendations for typical power supply loads.
VESDA-E VEA Configuration
Power Supply/Alarm Load
24 hours of standby operation and 30
minutes of alarm
Base Configuration 1xVEA-040-A00/A10 +
1x VER-A40-040-STX
1A/1.8A
24V/35AH or 36AH
Add 1xVEA-020/040-STX + 1xVER-A40-040-
STX to the Base Configuration
1.9A/3.4A
24V/70AH or 72AH
Add 2xVEA-020/040-STX + 2xVER-A40-040-
STX to the Base Configuration
2.8A/5A
24V/105AH or 108AH
For use with the Listed VESDA-E VEA Detector Base Units and VESDA-E VEA Detector Stacks
Max. charging current 5.3A. Max. AMP/HOUR capacity battery for charging 108AH.
Input
VPS-VEA-115UL:
120VAC / 2.0A/60Hz
VPS-VEA-230UL:
230VAC / 1.0A/50Hz
In-rush:
4.1A
Input Fuse
5A / 250V, Bussman P/N SR-5. To replace fuse (F1), disconnect power to unit, wait 5 seconds, remove fuse by lifting
it. Insert new fuse into its socket.
Output
27VDC / 2.8A
Continuous, 27VDC / 5A alarm
Installation Instructions for
VESDA Power Supply Model VPS-VEA-115UL and VPS-VEA-230UL
