Dimplex LST050 Operating Instructions Manual page 3

WARNING – THIS APPLIANCE MUST BE EARTHED
The electrical installation must be carried out by a competent electrician, and be
in strict accordance with the current I.E.E. Regulations for Electrical Equipment in
Buildings. The wires in this mains lead are coloured in accordance with the following
code:
GREEN AND YELLOW:
BLUE:
:
BROWN
BLACK
- see also 'Pilot Wire Connection'.
The heater is fi tted with a length of fl exible cable type H05VV-F size 4 x 1.0mm
connection to the fi xed wiring of the premises through a suitable connection box
positioned adjacent to the heater.
A means for disconnection must be incorporated in the fi xed wiring of the premises
in accordance with the wiring rules. The supply circuit to the heater must incorporate
a double pole isolating switch having a contact separation of at least 3mm.
Pilot Wire Connection
The BLACK control wire is designed to carry a signal from a wall mounted Dimplex
programmer. If a programmer is not being used, the pilot wire should be isolated in
accordance with the current IEE Wiring Regulations.
IMPORTANT - DO NOT
with the installation of the pilot wire(s) as when switching to background (setback)
they become energised at 240V although only at a current of less than 100mA. In
every case a suitable means of isolation must be provided for the pilot wire and
marked to indicate that two sources of supply may be present at the heater. Where
pilot wires are installed separately from the heater fi nal sub-circuit they should be
protected, double insulated and carry their own integral earth continuity conductor.
Supplementary Earth Bonding
Should Equipotential Earth Bonding be required the earthing conductor in the supply
cord is deemed to provide the supplementary bonding connection (see Regulation
544.2.5, 17th Edition I.E.E. Wiring Regulations).
Please note that lit cigarettes, candles and oil burners, combined with the
convection effect of electric heaters can cause soot deposits to build up on the
surface directly above and to the sides of the heater. This is not a fault of the
heater. Extensive burning of candles or smoking in the operating environment of
this product can produce heavy discolouration within a few months of use.
EARTH
NEUTRAL
LIVE
PILOT WIRE
connect the BLACK pilot wire to earth. Care should be taken
2 for
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