ENGLISH
15 / 34
0006160209_201702
OPERATING DESCRIPTION
The gas train supplied is composed of an ON/OFF safety valve
and a single stage slow opening main valve.
The gas flow adjustment in the first and second stage is carried
out by a streamlined butterfly valve (6) activated by the electric
servomotor (7).
The movement of the air damper is caused by the rotation of the
servomotor (7) through the lever and tie rod system (34).
For the adjustment of the air damper position according to the
power burned in the first and second stage, consult section:
“Ignition and adjustment”.
If when the main switch is turned on (1), the thermostats are on,
the voltage reaches the control box which starts the burner (2).
This turns on the fan motor for pre-ventilating the combustion
chamber.
At the same time the command servomotor (7) rotates, bringing
the streamlined gas throttle (6) and the air damper (8), by means
of a lever system, to the opening position corresponding to the
second flame.
The pre-ventilation phase comes only with the air gate in the
second flame position.
At the end of pre-ventilation, the gas throttle and the air damper
are returned to the ignition position, then the ignition transformer
turns on and the gas valves open.
The presence of the flame, detected by the control device, permits
continuation and completion of ignition, turning off the ignition
transformer.
Then passing on to the second stage of power through the
progressive opening of the gas throttle and the air damper 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 damper, 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 flame, the control box activates a “safety shut down” (10) within
3 seconds from the opening of the main gas valve. In “safety lock-
out” mode the valves are closed again immediately.
To release the equipment from its safety position, press the
release button (10).
7
6
34
0002937650
8
MV
GAS
1
3
9
10
2
1
6
4
5
sinottico_TBG1
100MC
1 ON / OFF main switch
2 Voltage warning light
3 AUTOMATIC - MANUAL operation selector
4 Ignition transformer warning light
5 Gas valve warning light
6 Fan motor thermal relay activation warning light (if installed)
9 MIN - MAX power selector
10 Reset button with lock warning light
Summary of Contents for TBG 800 MC
Page 2: ......
Page 32: ...ITALIANO 30 34 0006160209_201702 SCHEMI ELETTRICI ...
Page 33: ...ITALIANO 31 34 0006160209_201702 ...
Page 34: ...ITALIANO 32 34 0006160209_201702 ...
Page 35: ...ITALIANO 33 34 0006160209_201702 ...
Page 66: ...ENGLISH 30 34 0006160209_201702 WIRING DIAGRAMS ...
Page 67: ...ENGLISH 31 34 0006160209_201702 ...
Page 68: ...ENGLISH 32 34 0006160209_201702 ...
Page 69: ...ENGLISH 33 34 0006160209_201702 ...
Page 71: ......