VESDA LaserPLUS - 1.10 Powering Up

VESDA
®
LaserPLUS Product Guide
25
Note: If intelligent VESDA power supply is fitted it will report power failures (F15) on
VESDAnet. VLP & VLS with GPI terminals connected will maintain their aspirator
speed for an hour after the loss of mains power. After which, the aspirator speed will
be limited to 3000 rpm to conserve power.
1.10 Powering Up
A LaserPLUS detector must be powered up by VESDA accredited personnel only.
After installing the LaserPLUS detector it is necessary to power up the system.
The system takes approximately 15 seconds to power up.
If the system fails to power up, check all power wires are secured to its terminals and the
polarities of the power wires are correctly terminated.
On power up:
• The aspirator starts up and air is felt flowing out of the exhaust port
• If a programmer module is fitted, the word “VESDA” will be displayed
• If a Display Module is fitted, the following indicators are lit:
- Fire Alarm Threshold indicators
- Smoke Threshold indicators on bargraph
- Two digit numerical display
- Various fault indicators if there are any faults
- System OK indicator if there are no faults
If any of the above does not happen, contact your commissioning engineer or distributor to
troubleshoot.
Note: It is normal for the detector to display troubles immediately after power up. Reset
the detector by pressing the reset button on the front cover of the detector to unlatch
the relays and fault LEDs. The fault LEDs on the front cover will illuminate. Proceed
with the preliminary systems check.