Desa MASTER BG 100 Manuel De L'utilisateur page 9

Instruction Manual there is an envelope, which contains a spare
choke and an adhesive label that indicates the type of gas that
the burner should use.
INSTRUCTIONS FOR USE
SWITCHING ON
• Set the control knob (2) to position "0".
• Turn on the disconnecting switch on the electric switchboard.
• If the unit is operated manually turn the control knob to
burner starts up, the combustion chamber heats up and then
the fan starts.
• If the unit operates automatically set the room thermostat to the
desired level and turn the control knob (2) to
now start and stop automatically.
• If the heater doesn't start after you have completed the above
operations consult the Troubleshooting section of this manual.
TURNING OFF
WarningNever stop the heater by simply turning off the
disconnecting switch on the electric switchboard. The
electrical supply must only be disconnected when the fan
has come to a complete stop.
In manual operation turn control knob (2) to "0" or turn off control
in automatic operation.
The burner stops while the fan turns itself on and off until the
combustion chamber has completely cooled down.
VENTILATION
When the control knob is turned to the symbol
operates in continuous fan mode.
MAINTENANCE
Warning: Qualifi ed personnel must carry out the following
operations.
Warning: Before carrying out any maintenance operation
the heater must be disconnected from the mains. There-
fore:
• Stop the machine as instructed above
• Turn off the disconnecting switch on the electric
switchboard.
• Wait until the heater has cooled down.
CLEANING THE HEAT EXCHANGER AND THE COM-
BUSTION CHAMBER
For the heater to operate effi ciently the heat exchanger and
combustion chamber must be cleaned after a period of prolon-
ged use and more frequently if too much soot builds up. Soot
builds up when there is not enough chimney draft, when the fuel
is of very poor quality, when the burner is regulated incorrectly
or when the heater is switched on and off too frequently. If the
heater starts vibrating when it is turned on there is probably too
much soot.
To get at the internal parts of the heat exchanger (1), remove
the burner (2), take off the upper back panel (3), the exchanger
inspection panels (4) and the baffl e plates (5). Clean out soot or
extraneous material with a vacuum cleaner or tube cleaner.
CLEANING THE FAN
Remove any dirt or extraneous material from the mesh of the
aspiration grill (6) and if necessary clean the propeller with an
air-suction tool.
CLEANING THE BURNER
For the heater to work effi ciently the burner must be serviced re-
gularly by an Authorized Service Technician. All cleaning, servi-
cing and regulation operations must be carried out as indicated
in the Burner Instruction Manual.
.The
: the heater will
TRANSPORTING AND MOVING THE HEATER
To move or transport the heater, place it on a raised base and lift
with by a forklift truck.
the heater
Warning: Before moving the unit:
• Turn it off as indicated above.
• Disconnect electricity by pulling out the plug.
• Wait until the heater cools down
• Never try to lift the heater manually. Doing so could result
in physical injury.
WARMLUFTERHITZER
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Fig. 5