Powering Up; Preliminary System Check - VESDA VLQ-100 Product Manual

VESDA by Xtralis
4.5

Powering Up

After installing the detector it is necessary to power up the system. The power up sequence lasts
approximately two minutes.
The VESDA VLQ detector does not have a power switch, i.e it is hard wired to a 24 VDC supply and it is
assumed that the power supply has been installed as per manufacturers instructions in accordance with local
electrical codes.
If the system fails to power up, check all power wires are secured to their terminals and that the polarity is
correct.
On power up:
The Power LED illuminates and the detector runs a series of self-diagnostic and lamp tests.
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If there is a fault, the Fault LED illuminates. To identify the fault, check the fault code on the display
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panel or within the Xtralis QSC software.
The aspirator starts.
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It is normal for the detector to display faults immediately after the first power up. Reset the detector using the
Xtralis QSC software or the reset button on the detector. This will unlatch the relays and turn off the Fault
LED. Any remaining faults will cause the Fault LED to illuminate again. Proceed with the preliminary system
check.
4.6

Preliminary System Check

A preliminary system check is required after installing the VESDA VLQ detector, before it is commissioned for
use. The check can be conducted by using buttons on the detector or by connecting to the detector using the
Xtralis QSC software. The preliminary systems check includes:
Normalizing the air flow. Activate the normalization process using the N button on the detector or by
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using Xtralis QSC.
Conducting a basic smoke test.
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Check interface to FACP, i.e. verify alarm and fault conditions.
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VESDA VLQ Product Guide
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