Chapter 3: Commissioning
28 LaserSense Nano Aspirating Smoke Detector Installers Handbook
Introduction
This chapter covers the commissioning procedures for the detector.
Commissioning strategy initially depends upon the environment in which the
detector is installed. For instance, the test for a computer room (in a relatively
clean environment) would be very different from, say, a flour mill, with a high
level of airborne particulate content.
A widely accepted standard for computer rooms or EDP areas is British Standard
BS6266, equipment overheating at a stage well before combustion. To perform
the test electrically overload a 1‑metre length of PVC insulated wire of 10/0.1mm
gauge for one minute using an appropriate power supply. The detector has two
minutes from the end of the wire burn to give an alarm indication.
For areas with higher levels of background particulate matter testing
methodology would be similar to that of standard point detectors.
Commissioning should only be done by factory-trained technicians in accordance
with applicable standards.
Precommissioning preparation
Commissioning should be performed after all construction has been completed
and cleaned of any lingering post-construction dirt. If ambient monitoring
conditions are recorded before the installation is cleaned up, they may not
accurately reflect actual normal operating conditions that need to be used as
reference data for follow-up maintenance procedures and tests.
Commissioning checklist
The following brief checklist allows quick setup of the detector. This procedure
will be adequate for most standard installations.
Caution: Ensure all wiring connections are checked prior to powering up the
detector. Incorrect wiring of the detector will cause permanent damage to the
detector.
1. Before powering up the detector, visually check all cabling to ensure correct
connection. If wire identification is not immediately clear (e.g., by use of different
colored wires or wire identification sleeves), an electrical check should be
made.
2. Disconnect the detector from the fire control unit, if applicable.
3. Power up the detector and wait for the 15 minute FastLearn cycle to finish.
The OK LED will be steadily lit when complete.
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