baltur TBG 35 MC, Installation, Use And Maintenance Instruction Manual

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ENGLISH
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0006160096_201612
OPERATING DESCRIPTION
The gas flow regulation in the first and second stage is carried out
by a streamlined valve activated by the electric servomotor -7.The
movement of the air shutter -8 is caused by the rotation of the ser-
vomotor -7 through the lever system -1.For the adjustment of the
air shutter position according to the power burned in the first and
second stage, consult section: “Ignition and regulation” .If when
the main switch is turned on, the thermostats are on, the voltage
reaches the control box which starts the burner.
This turns on the fan motor for pre-ventilation of the combustion
chamber. The rotation of the control servomotor -7, which acti-
vates the gas throttle and the air shutter, through the action of
leverage -1, in the open position corresponding to the second fla-
me.At the end of the pre-ventilation phase, the gas throttle and
the air shutter are returned to the ignition position (Cam IV), then
the ignition transformer -2 comes on and, 3 seconds later, the gas
valves open.
The presence of the flame, detected by the control device, permi-
ts continuation and completion of ignition, turning off the ignition
transformer. Then passing on to the second stage of power throu-
gh the progressive opening of the gas throttle and the air shutter
at the same time.At the moment in which the demand for heat
from the system is satisfied, the boiler thermostat will intervene
and shut down the boiler. The air shutter, through the rotation of
the servomotor, will reach the closed position when inactive.In the
event that the control device does not detect the presence of a fla-
me, the control box activates a “safety lock-out” within 3 seconds
of the opening of the main gas valve.In “safety lock-out” mode the
valves are closed again immediately. To release the control box
from its safety position, press the reset button -9.