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

Page: 79 / 116

NATURAL GAS IGNITION AND REGULATION
• Turn the switch (1) on the control panel to the “O” position (open).
• Turn the fuel change-over switch to the “GAS” position.
• Check that there is water in the boiler and that the gate valves of
the system are open.
• Make sure that the combustion products may be freely vented
through the boiler and flue dampers.
• Make sure that the mains voltage corresponds to the manufactu-
rer's requirements and that all electrical connections made at the
installation site are effected properly as illustrated in our wiring dia-
gram.
• Bleed out the air contained in the gas piping, with due precautions
and with doors and windows open.
• Open the union on the pipe near the burner and then open slightly
the gas shut-off cocks.
• Wait the time necessary for the gas in the room to disperse outside.
Re-connect the burner to the gas pipeline.
• Install a pressure gauge with adequate scale on the pressure outlet
of the gas pressure switch.
• With the switch on the burner panel at the position “0” and the main
switch on, check, closing the contactor manually, that the motor ro-
tates in the right direction. If necessary, swap the two power cables
for the motor around to change the direction of rotation.
• If using the inverter, see the specific instructions in the quick guide.
• Turn the main switch (1) to position "I" (closed) to supply power to
the equipment.
• Close the thermostatic line by setting switch (2) to position "I" (clo -
sed).
• If thermostats or pressure switches (safety and boiler) are closed
as well, the burner operating cycle will start.
• To adjust the minimum and maximum burner flow rate, refer to the
nozzle return flow/pressure diagram.
• Keep an indicative value of O2 between 3,5 - 4 %.
• When the burner is working at its "minimum" output, adjust the air
in the proper quantities to ensure a good combustion.
• After adjusting the air for the operation at the "minimum" output,
increase the power and proceed to define the operating curve as
described in the equipment manual.
• Check the combustion using the specific instrument at all interme -
diate points on the modulation curve.
• Having finished the air and gas flow adjustment, check the actual
gas flow rate by reading the meter. Avoid keeping the burner run -
ning if the heating capacity is greater than the maximum amount
allowed for the boiler, to avoid damaging it.
H1
H2
H7
H8
H10
H11
FUSE
F 6.3 A
S1 S24 S6
GAS
OIL
I
O
I
O
GAS
OIL
1
2
3
5
7
8
10
6
4
9
0002951050N7
1 Main switch ON - OFF
2 Thermostatic line switch
3 Display
4
Appliance shut-down indicator light
5 Power LED
6 Fan block
7 Gas operation light
8 Liquid fuel operation indicator light
9 Pump motor lock
10 Fuel switch (gas/liquid fuel)
21 / 56
0006160357_202106
ENGLISH