Duomo BX444-Mc Manual de instalación y uso - Página 5
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Typical Wiring Schematic for BX444-Mc
Electrical Installation
The BX444-Mc is a safety device designed to give audible
alarms and
automatically
isolation of associated gas safety shut off valves in the event of
a gas leak or build up of toxic gases. The sensors can be
located up to 100m from the gas detector. Cable size should
be 1mm2 CSA. If the sensor cables are run separately in
specific conduit it is not essential to use screened cable but
if the cables are routed through conduit or trunking
containing other wiring the use of screened cable is advisable.
The wiring should be performed by a qualified person in
accordance with current regulations. The plug-in terminal rail
makes installation easy and quick. Do not mount close to any
heat source or in an area where moisture is likely to effect
operation. The IP rating of this unit is IP44. Sensors should
be positioned as shown below. If you require any guidance
on this please call Duomo technical support on 01905
797989.
Carbon
Monoxide
w: www.duomo.co.uk
-
provide
latched
Installing A Sensor
The sensors must be mounted as shown below with
the sintered head pointing vertically down. When
electrical
replacing sensors never seperate a sensing head from
its PCB. The sensor will have been calibrated using
this particular board and therefore will not function
correctly with any other.
SGM595
autosetting
Important Notes
Always check the wiring before powering up the
system.
Do not test this sensor with anything other than
Duomo
section for further information). Concentrations
above this will damage the sensor and shorten
sensor life. The installation of this gas detector does
not release the user from observing all the
regulations
installation and and the use of gas appliances; the
ventilation
elimination
accordance with the local recommendations,
regulations and bylaws. For any damage caused to
people, property or animals resulting from incorrect
connection, installation or application of this gas
detector Duomo will not be held responsible or liable.
To ensure correct function after installation Duomo
provide a commissioning service using calibrated test
gases. For this service call 01905 797989.
-
t: 01905 797989
-
ON
test
gas
(see
'BX444-Mc Operation'
concerning
the
of
the
environment
of
combustion
f: 01905 774296
|
characteristics,
and
the
products
in
© Duomo (UK) Ltd. 2016