Honeywell FireLite BEAM355, Installation And Maintenance Instructions Manual

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line of sight to the transmitter/receiver unit. The maximum tolerance for non-
perpendicular mounting locations is 10°. See Figure 5b. If the reflector cannot
be mounted within 10° of the transmitter/receiver unit then the multi-mount
kit (BEAMMMK) or the heavy-duty multi-mount kit (6500-MMK) may be used
to provide greater angular adjustment of the transmitter/receiver unit. If the
perpendicular plane of the reflector cannot be mounted within 10° of the op-
tical line of sight then the multi-mount kit can be used for the reflector. See
BEAMMMK or 6500-MMK instructions.
To aid in locating the reflector in the alignment mirror at long distances a
bright orange sticky backed piece of paper is provided. Remove the protective
backing from the orange sticker. Temporarily affix the orange paper next to
the reflector using the sticky backing of the paper. The location of the sticky
paper is not critical. It may be placed anywhere near the reflector as long as it
not covering the reflective surface of the reflector. This sticky paper should be
removed once the installation is completed.
fiGuRE 5A. REflEcToR MounTinG GuiDElinES
WA
LL
REFLECT
OR
ACCEPTABLE MOUNTING
LOCATIONS FOR REFLECTOR
10
10
C0258-00
fiGuRE 5B. REflEcToR MounTinG GuiDElinES
10 MAXIMUM
OPTICAL LINE OF SIGHT
REFLECTOR
C0259-00
MounTinG conSiDERATionS foR SinGlE EnDED BEAM DETEcToRS
There must be a permanent clear line of vision between the detector and the
reflector. Reflective objects must not be near the line of vision between the
detector and reflector. Reflective objects too near to the line of sight can reflect
the light beam from the transmitter to the receiver. If this occurs, the detector
will not be able to distinguish these reflections from those of the reflector and
the protected space will be compromised. Reflective objects should be a mini-
mum of 15 inches (38.1cm) from the line of sight between the detector and
reflector. In cases where reflective objects cannot be avoided, the complete re-
flector blockage test can be used to determine if the installation is acceptable.
See Testing and Maintenance Section of this manual.
Light sources of extreme intensity such as sunlight and halogen lamps, if di-
rected at the receiver, can cause a dramatic signal change resulting in fault
and alarm signals. To prevent this problem direct sunlight into the transmitter/
receiver unit should be avoided. There should be a minimum of 10° between
the pathway of the light source and detector and the line of sight between
detector and reflector.
Operation of the detector through panes of glass should be avoided. Since
single ended beam detectors operate on a reflection principle, a pane of glass
perpendicular to the line of sight between the detector and the reflector can
reflect the light beam from the transmitter to the receiver. If this occurs, the
detector will not be able to distinguish these reflections from those of the re-
flector and the protected space will be compromised.
Panes of glass will also absorb some of the light as it passes through it. This
absorption of light will reduce the acceptable installed distance between the
detector and the reflector.
In cases where operation through panes of glass cannot be avoided some spe-
cific installation practices can help to minimize the effects of the glass. These
practices include: avoid penetration of multiple panes of glass, position the
glass so that it is not perpendicular to the line of sight between the detector
and the reflector, (A minimum of 10° off perpendicular should be considered),
and make certain that the glass is smooth, clear and mounted securely. The
complete reflector blockage test can be used to determine if the installation is
acceptable. See Testing and Maintenance Section of this manual.
Where high ceilings (in excess of 30 feet or 9.1 meters) are present additional
beam smoke detectors mounted at multiple heights may be required to detect
smoke at lower levels. See the Detector Placement section in this installation
manual.
wiRinG inSTAllATion GuiDElinES
Always install all wiring in compliance with the National Electrical Code, and/
or the applicable local codes, and any special requirements of the local au-
thority having jurisdiction. Proper wire gauges and suitable means for strain
relief should be used. The conductors used to connect beam smoke detectors
to control panels and accessory devices should be color-coded to reduce the
likelihood of wiring errors. Improper connections can prevent a system from
responding properly in the event of a fire.
Installation wire used for the beam detector shall be no smaller than 22 AWG
(1.0 mm2). For best system performance, all wiring should be twisted pair and
installed in separate grounded conduit. Do NOT mix fire system wiring in the
same conduit as any other electrical wiring. Shielded cable may be used to
provide additional protection against electrical interference.
When installing the beam smoke detector in applications where the head unit
will be mounted to either a wall or the ceiling using the multi-mount kits
(BEAMMMK or 6500-MMK) flexible conduit will be used. The surface mount
kits (BEAMSMK or 6500-SMK) and multi-mount kits (BEAMMMK or 6500-
MMK) must be installed with the cable before wiring the unit, according to
the instructions supplied with the kit.
When the detector has been mounted over a recessed junction box, all wiring
should be routed out of the box and behind the detector to the bottom of the
detector where the terminal blocks are located. When installing the wiring
in the junction box be sure to leave enough wire in the box to connect to the
terminal blocks. (Approximately 9 inch (23cm) of wire outside of the junction
box will be required for proper installation). All wiring to the detector is done
via pluggable terminal blocks. In order to properly make electrical connec-
tions strip approximately 1/4 inch (6mm) of insulation from the end of the
wire, sliding the bare end of the wire under the clamping plate screw.
Figure 6 shows all the wiring connections to the transmitter/receiver unit.
Figure 7 shows the proper wiring diagram for either class A or class B opera-
tion. Figure 8 shows the connections that are necessary when using one of
the optional remote test stations. Figure 9 shows the remote output for alarm
indication.
WARNING:
Disable the zone or system before applying power to the beam
detector to prevent unwanted alarms. When applying power to
the beam detector before the alignment procedure has been com-
pleted the detector may enter alarm or fault.
F300-29-00 4 I56-2425-007R