baltur TBG 450LX ME, Instruction Manual For Installation, Use And Maintenance

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If the air pressure switch does not detect a pressure greater than that
calibrated, the equipment runs through its cycle but does not switch
on the ignition transformer and does not open the gas valves and so
the burner “locks-out”.
To ensure the air pressure switch correct operation, with burner at
the minimum output, increase the adjustment value until reaching the
triggering value which must be followed by the immediate burner lock-
out.
To unblock the burner, press the special pushbutton and return the
pressure switch regulator to a suffi cient value in order to measure the
air pressure existing during the pre-ventilation phase.
Adjust the setting of the pressure switch to a level slightly below the
actual air pressure detected in fi rst stage operation. Release the bur-
ner and check that it starts up correctly.
GAS CONTROL PRESSURE SWITCHES
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-
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 (fl ame on) locks out the burner immedia-
tely.
REGULATION BEFORE IGNITING THE BURNER:
regulate the pressure switch for minimum pressure at the minimum
value of the scale, regulate the pressure switch for the maximum va-
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 (fl ame on), locks out the burner immediately.
The minimum value pressure switch stops the burner that remains
on standby until the pressure is restored within the values required
for operation.
After that, the burner re-starts in an autonomous way following the
ignition sequence.
• Check the activation of the fl ame detector (ionisation electrode) by
disconnecting the ionisation cable and connecting the burner.
• reposition the photocell;
• This test should also be conducted with the burner already on;
when extracting the photocell from its seat, the apparatus should
shut down immediately.
IMPORTANT
In case only one pressure switch is installed on the gas train, it
must be a pressure switch for minimum pressure.
• Check the triggering of the fl ame detector (ionisation electrode).
Disconnect the ionisation electrode lead and activate the burner.
The equipment must run through its cycle completely and, three
seconds after the ignition fl ame has formed, “lock-out”.Carry out
this check also when the burner is already on. Disconnecting the
ionisation electrode lead, the equipment must immediately go into
its “lock-out” action.
When fi rst switching on the burner it is essential to check that they
work properly.
FLAME SENSOR
The equipment must run through its cycle completely and, three se-
conds after the ignition fl ame has formed, “lock-out”.
• switch off the burner;
• reposition the photocell;
• This test should also be conducted with the burner already on;
when extracting the photocell from its seat, the apparatus should
shut down immediately.
34,50 ±1
0002950600_tav40
This test should also be conducted with the burner already on. The
apparatus should shut down immediately when the ionisation cable
is disconnected.
ROTARY COMPRESSOR
• The compressor starts together with the burner.
• When the burner stops the post-ventilation function is activated and
also the compressor remains in operation for 120 sec.
• Check that the compressed air pipe outlet is supplied during ope-
ration.
ENGLISH
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0006160281_202007