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triggers instant “lock” stop of the burner. Release the burner
by pushing the appropriate button and readjust the pressure
switch to an adequate value to detect the existent air pressure
during the pre-ventilation phase.
12) The pressure switches for checking gas pressure (minimum
and maximum) prevent the burner from operating when gas
pressure is between the expected values. The specific function
of the pressure switches clearly reveals that the pressure
switch for controlling minimum pressure must use the contact
which is closed when the pressure switch detects a pressure
value above the value it is set to, while the pressure switch
for controlling maximum pressure must use the contact that
is closed when the pressure switch detects a pressure lower
than the value it is set to. Minimum and maximum gas pressure
switches must be set when the burner is tested. Setting depends
on pressure detected from time to time. Tripping of any of the
gas pressure switches (in the sense of opening the circuit) will
therefore prevent the equipment and therefore the burner from
working. When the burner is working (flame on), tripping the
gas pressure switches (opening the circuit) will shut down the
burner immediately. When testing the burner, it is very important
to check that the pressure switches are working properly. By
using the adjustment devices, it can be verified whether the
pressure switch that stops the burner actually operates (i.e.
opens the circuit).
13) Verify the flame detector operation as follows:
- disconnect the wire coming from the ionization electrode,
- Start up the burner;
- The equipment will complete the control cycle and after
two seconds will lock the burner due to the lack of ignition
flame;
- switch off the burner;
- Re-connect the wire to the ionization electrode.
This test should also be conducted with the burner already on;
the equipment should “lock” immediately when the wire from
the ionization electrode is disconnected.
14) Check the proper function of the boiler thermostats or pressure
switches (when triggered they must stop the burner).
!
Check that ignition occurs normally since if the mixer is
not positioned correctly, it may happen that the speed
of the delivery air is so high that ignition is difficult.
If this happens, the mixer must be shifted back by
degrees until it is in a position in which ignition occurs
normally, and this new position can be regarded as the
final position.
Remember that for the ignition flame, it is better to limit the
amount of air to the amount strictly indispensable to ensure
safe ignition even in the most difficult cases.
MANUAL BURNER OPERATION INSTRUCTIONS
Combustion may be checked throughout the entire modulation range
by controlling the “BT 3xx” equipment manually. Use the modulation
connector (A) as in the figure, supplied with the burner. Insert the
connector (A) into the 4-pole plug, use the + or - button to increase
or decrease the gas or air supply.
After completing the check, remove the connector (A) from the plug
to restore automatic modulation operation.
Summary of Contents for btg 15 me
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Page 42: ...18 22 0006081529_201201 ESPA OL ESPA OL...
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Page 44: ...20 22 0006081529_201201 ESPA OL ESPA OL...
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Page 64: ...18 22 0006081529_201201 FRAN AIS FRAN AIS...
Page 65: ...19 22 0006081529_201201 FRAN AIS FRAN AIS...
Page 66: ...20 22 0006081529_201201 FRAN AIS FRAN AIS...
Page 68: ...22 22 0006081529_201201 FRAN AIS FRAN AIS...
Page 86: ...18 22 0006081529_201201 T RK E...
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Page 92: ...2 22 0006081529_201201 PYCCK BALTUR I a b c a b c d e f g...
Page 93: ...3 22 0006081529_201201 PYCCK 2 RC a b c d e a b a b c d I...
Page 100: ...10 22 0006081529_201201 PYCCK 12 13 14 BT 3xx...
Page 104: ...14 22 0006081529_201201 N 0002934540 Manutenz 2 Manutenz 1 Manutenz 3 PYCCK 3 4 1 2 3 3...
Page 106: ...16 22 0006081529_201201 8721 2 ioniz_BT3xx PYCCK 1 30 30 1 4 1 4 A...
Page 107: ...17 22 0006081529_201201 PYCCK 1 2 1 2 1 2 3 1 2 3 1 1 AD PE SS PN 40 40 1 2 3 4 18...
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