Riello Burners 3433785, Инструкции по установке, использованию и обслуживанию

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5893
9
SPRAY TEMPERATURE ADJUSTMENT
Thermostat for adjustment - maximum value - minimum value
Adjustment thermostat: it prevents the burner start up if the fuel temperature has not reached the required val-
ue for a good spray as indicated in the diagram below.
Example: fuel oil with viscosity of 7 °E at 50 °C is pre-heated to approximately 110 °C.
The thermostat has to be generally set at a value higher than the required one. (120° C indicated on the knob
to get approx. 100° C at the nozzles).
The value read has to be done after some minutes of performance and later the necessary adjustments could
be carried out.
Minimum value contact thermostat: it intervenes by stopping the burner if the fuel temperature decreases un-
der the value necessary for a good combustion.
Maximum value thermostat: it switches off the resistances when in case of failure of the adjustment thermostat,
the temperature increases inside the pre-heater.
In case of abnormal temperature, make sure of the regular functioning of control thermostat and of the resist-
ance in contact with the probe of the thermostat.
NOTICE
If the pre-heater thermostat or the resistance con-
tacting the probe should be replaced, the probe has
to be positioned in contact with the resistance and
with the pipe of the last aluminium plate, after loos-
ening of the fixing screws of the aluminium plate,
see drawing. -
If during the operation exceptional changes or too
much high temperatures should be detected, verify
the continuity of the resistance, using and ohmme-
ter, contacting the temperature probe (approxi-
mately 35 Ohm).
Spray temperature
Vi
sc
os
it
y a
t 50
° C
Sheath for
thermometer
Adjusting knob
of thermostat
Pre-heater
Purge
Aluminium
plate
Tubes into aluminium plate
Resistance
Thermostat probe