Installation - Tyco FlameVision FV300 SERIES User Manual

INSTALLATION

6. INSTALLATION
6.1 GENERAL
The FV300 Series detectors may be surface mounted or may use the FV300 adjustable mounting
bracket.
On the FV311 series, all electrical connections are made via terminal blocks inside the detector
rear housing. Two 20mm cable entries are provided. On the FV312 series, electrical connections
are made through the FlameVision Exe junction box, selecting the appropriate circuits required.
Guidance on mounting and wiring the detectors is given below.
6.2 MOUNTING A DETECTOR
6.2.1 GENERAL
The location of each detector should have been determined at the system design stage according to
the principles detailed in the System Design Information section and marked on the site plan.
The actual mounting position must, however, be decided during the installation and in choosing the
position, the following principles together with the original system requirements should be
followed.
6.2.2 CHOICE OF MOUNTING POSITION
The following points must be observed when choosing the mounting position:
a) The detector should not be installed where it may be subject to mechanical or
thermal stresses or where it may be attacked by existing or foreseeable aggressive
substances.
b) The detector must be positioned such that a clear line of sight is provided to all
parts of the risk area. Roof trusses, pipework, supporting columns etc. in front of
the detector can cause significant shadowing and should be avoided.
c) If supervision of an area immediately below the detector is required, it is essential
that the angle between the detector and the horizontal is not less than 50°.
d) The detector should not be sited in a position where it will be continuously
subject to water drenching. The FlameVision Weather hood should be use to
protect the detector from heavy downpours that may be frequent in certain
climates.
e) In outdoor installations, in areas of high solar radiation, some form of sunshade
is recommended to prevent excess heating of the detector. The FlameVision
Weather hood can provide protection against direct sun.
f) The detector should not be sited in a position in which it will be subject to severe
icing.
g) Where a certain amount of icing or water condensation can occur, it is
recommended that the window de-mister be selected. See the System Deign
Information section for additional power requirement.
h) The detector must be mounted on a stable structure that is readily and safely
accessible for maintenance staff.
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