Xtralis VESDA VLC-400, Руководство по эксплуатации продукта

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VESDA by Xtralis VESDA VLC-400 Product Guide
www.xtralis.com 3
1 Introduction
1.1 Scope
This manual provides instructions on how to install, commission and operate the VESDA VLC-400 (Apollo). It
outlines the pipe configurations permissible, power supply requirements, and installation. This manual
presents some basic rules for achieving a conservative pipe work layout that will perform satisfactorily in the
vast majority of applications. It does not provide information on how to design and verify customised pipe
work configurations. Pipe work designs that exceed these pre-verified rules are often possible and may even
result in improved performance but these must always be verified using the ASPIRE2 pipe-modeling software
that should only be used by VESDA accredited installers.
This document provides brief details on how the Xtralis VSC software is used to configure the detector. It
does not describe how to use Xtralis VSC to configure custom alarm thresholds, interrogate event logs and
smoke trends stored in the detector, set the internal clock and generally access the extensive features of the
VESDA VLC-400 detector.
This document is intended for proficient installation engineers who are familiar with the commissioning of an
Apollo Fire Detection System but have limited experience with the installation of VESDA systems.
1.2 Overview
The VESDA VLC-400 is a derivative of the standard VESDA VLC product family, with the primary difference
being that it communicates directly on the Apollo loop.
VESDA VLC detectors provide Very Early Warning of potential fire conditions by drawing air samples through
25mm pipe up to 80m long (two pipes of up to 50m may also be used when branched within 4m of the
detector). Smoke is sampled through holes in the pipe and transported to the detector by an integrated
aspirator or fan. Holes are positioned according to the application and often follow the spacing of standard
conventional point detectors. Where necessary sampling points can be constructed using capillary
extensions. Refer to Section 5.4 on page 21 for more information.
The Apollo version of the VESDA VLC acts as an optical smoke detector on the Apollo loop and reports
directly to the Fire Alarm and Control Panel (FACP). It is compatible with Apollo XP95 and Discovery Fire
Alarm Control Panels (FACP).
In keeping with the Apollo XP95 protocol the VESDA VLC-400 reports the analogue value over the Apollo
Loop - with a count of 55 corresponding to the Fire Condition. As a Discovery Detector the detector operates
in one of 5 sensitivity modes. The threshold associated with each mode is independently configurable using a
PC running Xtralis VSC with the default settings as mentioned in Section 2.5.6 on page 13.
The detector also supports AutoLearn, which may be invoked for a period of up to 14 days using Xtralis VSC.
At the end of the AutoLearn period the sensitivity of all 5 modes is set to the AutoLearn result. Refer to Section
8.7 on page 31 for further information.
The VESDA VLC-400 incorporates a loop isolator, provides support for an external LED and has a
configurable relay onboard.