baltur TBG 45 P, Instruction Manual

Page: 53 / 72

• Open the manual regulator for supplying gas for the second flame
(main flame) of the quantity deemed necessary.
• Now switch the burner on again, turning off the master and control
panel switch. The burner switches on and automatically activates
the second flame (main flame). Check the combustion parameters
with specific instruments, correcting, if necessary, the gas and air
supply as indicated in points 4 and 5.
• Use the adjuster to set the correct flow rate for the second flame as
required for the specific case. You must not keep the burner running
if the capacity is greater than the maximum amount permitted for
the boiler, or there is a risk it could be damaged. It is therefore best
to stop the burner immediately after the two meter readings.
• Subsequently, with the burner at maximum supply required by the
boiler, check the combustion with the special instruments and if
necessary change the adjustment previously carried out (air and
possibly gas) with just the visual check (CO2 max. = 10 % O2 min
=3% - CO max. = 0.1%)
• The air pressure switch prevents the opening of the gas valves if
the air pressure is not the foreseen one. The pressure switch must
therefore be adjusted to intervene closing the contact when the air
pressure in the burner reaches a sufficient value. 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 correct working of the air pressure switch,
you must, with burner on and with first flame only ,
increase the regulation until it is triggered and immediately locks-
out the burner. To release the burner, press the release button and
adjust the pressure switch to a sufficient level to detect the existing
air pressure during the pre-ventilation stage.
• The gas control pressure switch (minimum) prevents burner
operation when gas pressure is not the foreseen one. It is clear
from the specific function of the pressure switches that the control
pressure switch for minimum pressure must make use of the
contact that is closed when the pressure switch detects pressure
greater than that for which it is regulated.
• The adjustment of the minimum gas pressure switch must therefore
be carried out when the burner is started up, in accordance with the
pressure that is found at the time. The triggering (i.e. the opening
of the circuit) of any of the pressure switches when the burner is
running (flame on) causes the burner to stop immediately. When
first switching on the burner it is essential to check the correct
working of the pressure switch.
• Check the triggering of the flame detector (ionisation electrode).
Disconnect the jumper between terminals 30 and 31 on the printed
circuit board and switch on the burner. The equipment must run
through its cycle completely and, three seconds after the ignition
flame has formed, “lock-out”. This check must also be carried out
when the burner is already on. Disconnecting the 30 and 31 jumper,
the equipment must immediately go into its “lock-out” action.
• Check the efficiency of the thermostats or boiler pressure switches
(they should shut down the burner when triggered).
CAUTION / WARNINGS
Check that the ignition takes place properly. If the mixer is too
far forward, the high air flow can make ignition difficult. If this
happens, the mixer must be gradually shifted back until it is in a
position in which the best ignition is obtained. Fix this position.
We remind you that is preferable, in the case of the small flame,
to limit the quantity of air to the lowest amount possible needed
for safe ignition, even in the most difficult circumstances.
17 / 34
0006160178_202211
ENGLISH