baltur TBG 900 MC, Инструкция по установке, использованию и обслуживанию

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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.
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 pres-
sure 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 pressu -
re 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 immediately.
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 value
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 running
(flame on), locks out the burner immediately.
When temperature or pressure returns below the shut-down device
tripping value, the burner is activated once again according to the pro -
gram described in the previous section.
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 igni -
tion sequence.
IMPORTANT
In case only one pressure switch is installed on the gas train, it
must be a pressure switch for minimum pressure.
0002939600
IONISATION CURRENT MEASUREMENT
The maximum ionisation current value required for a correct operation
of the equipment is indicated in the wiring diagram.
The burner provides a significantly higher current and therefore does
not normally require any checks at all.
To measure ionisation current, connect a microammeter in series with
the ionisation electrode cable as shown in the figure.
PIN 2
X10-05
ioniz_LME73
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ENGLISH