baltur TBG 45 P, Instruction Manual For Installation, Use And Maintenance

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DESCRIPTION OF TBG 45P - 60P OPERATION
When the main switch and the I/O switch START/STOP switch on the
electrical panel are on, if the thermostats are on, voltage will reach
the command and control device, which starts up the burner (led 7
switches on).
This turns on the fan motor for pre-ventilation of the combustion
chamber. At the same time, the servomotor commanding the air lock
opens in the position corresponding to the second flame, so pre-ven -
tilation takes place with the air lock in the second flame position.
At the end of the pre-ventilation phase, the air lock is returned to the
first flame position, then the ignition transformer comes on and, 2
seconds later, the gas valves open.
The main valve, which has two stages, has a device for adjusting gas
delivery for the first and second flame.
The air damper is operated by a specific electric servomotor (see
SERVOMOTOR ADJUSTMENT CAMS). Keep in mind that when
the burner is locked out because the thermostat is tripped, the ser -
vomotor returns the air lock to the closed position. The presence of
the flame, detected by the control device, permits continuation and
completion of ignition, turning off the ignition transformer. The second
flame then comes on (combustion air is increased and the second
stage of the main valve opens).
If there is no flame, the appliance shuts down in "safety lock-out"
mode (led 8 switches on) within 3 seconds of the opening of the first
flame on the main valve.
In “safety lock-out” mode the valves are closed again immediately.
To release the appliance from safety lock-out mode, press button Re -
set button on the electrical panel.
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