LaserFOCUS VLF-500 Product Guide VESDA
®
22
1.5 Commissioning
General
The VESDA LaserFOCUS has been designed to simplify commissioning processes. The
AutoLearn function allows the unit to assess its environment and setup appropriate alarm and
flow thresholds. The unit may also be programmed through VESDA System Configurator (VSC)
software, for all programmable settings. For further information see Factory Defaults on page 34.
Note: Detectors should be commissioned with a smoke test.
Prior to commissioning the detector, check:
1. That the power is connected and on.
2. That the pipe network is clean and correctly fitted with all joints correctly seated and sealed
(except the endcaps and pipe which enters the detector which must not be glued).
3. That the exhaust deflector is fitted.
For code-specific information, see Codes and Standards Information for Air Sampling Smoke
Detection on page iv.
Figure 22 - Interface display
Note: It is important that the protected area is working under normal operating conditions
when operating the AutoLearn processes.
Note: AutoLearn functions can be de-activated by a second press of the appropriate
button this will leave the thresholds at their default settings and not at the settings
prior to AutoLearn.
AutoLearn Smoke
AutoLearn Smoke is initiated by pressing the recessed button numbered 1, which is located
under the field service access door.
During the AutoLearn Smoke process, the VESDA LaserFOCUS determines the average smoke
and peak smoke obscuration levels and sets suitable alarm thresholds for the operating
environment. This process will minimize false alarms due to normal environment smoke variations.
A
B
C
D
Legend
A AutoLearn Smoke button.
B AutoLearn Smoke indicator
C AutoLearn Flow indicator
D AutoLearn Flow button
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