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• The air pressure switch prevents the opening of the gas valves if
the air pressure is not the foreseen one. The pressure switch must
be adjusted to intervene closing the contact when the air pressure
in the burner reaches a sufficient value.
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TBG 650-750LX MC
0002950400N1
1
Control box
2
Air pressure switch
3
Ignition transformer
4
Motor contactor
5
Thermal relay
6 Timer
7
Synoptic panel
The gas pressure control switches (minimum and maximum) prevent
the burner from operating when gas pressure does not lie between
the expected range.
The minimum value pressure switch makes use of the NO (normally
open) contact which is closed when the pressure switch detects a
pressure higher than its own setting.
The maximum pressure switch uses the NC (normally closed) contact
that is closed when the pressure switch detects a pressure lower than
the value it is set to.
Adjustment of minimum and maximum pressure values on the pres
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sure switches must be performed when testing the burner, on the
basis of the pressure measured in each case.
The triggering (opening of the circuit) of any of the pressure switches
when the burner is running (flame on) locks out the burner immedia
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tely.
When first switching on the burner it is essential to check that they
work properly.
regulate the pressure switch for minimum pressure at the minimum
value of the scale, regulate the pressure switch for the maximum va
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lue at the maximum value of the scale.
REGULATION AFTER THE BURNER CALIBRATION:
The pressure switches are connected so that the triggering (opening
of the circuit) of any of the pressure switches when the burner is run
-
ning (flame on), locks out the burner immediately.
ENGLISH
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0006160271_202007
Содержание TBG 450LX MC
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