Buderus GB162-80 kW, Инструкция по эксплуатации

Страница: 8 / 12

3
Liquid Propane conversion
Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications! 8
Fig. 13 Measuring the gas supply pressure
B
Press on the control panel cover to open it.
Fig. 14 Opening the control panel
B
Switch on the boiler by setting the main switch to
position “1” (
Æ
fig. 1, page 5).
B
Press the “Chimney Sweep”
d
button and hold it for
approx. 2 seconds until the display shows a decimal
point.
B
Measure the gas connection pressure as soon as the
“Burner” LED lights and enter this value in the start-up
report.
The inlet gas pressure must be:
• for natural gas - min. 7.0 to 10.5 inch W.C. (17.4 to
26.1 mbar), nominal supply pressure 8.0 inch W.C.
(19.9 mbar)
• for LPG - min. 8.0 to 13.0 inch W.C. (19.9 to
32.3 mbar), nominal supply pressure 11.0 inch W.C.
(27.4 mbar).
B
Press repeatedly the “Service”
e
button until the
temperature indication is displayed.
B Press the “Chimney Sweep”
d
button to end the
measurement procedure.
B
Close the gas shut-off valve.
B Remove the connection hose again and tighten the
screw plug on the testing nipple.
B
Open the gas shut-off valve again.
3.5 Checking and adjusting the gas/air
ratio
B
Switch off the boiler using the main switch.
B
Loosen the screw plug on the measuring nipple for the
burner pressure by 2 rotations (
Æ
fig. 15, [1]).
B
Set the pressure gauge to 0.
B Use a hose to connect the plus terminal of the pressure
gauge to the burner pressure measuring nipple
(
Æ
fig. 15, [2]).
Fig. 15 Checking the gas/air ratio
B
Switch on the boiler using the main switch.
B Press the “Chimney Sweep”
d
button and hold it for
approx. 2 seconds until the display shows the decimal
point.
B
Press and hold the “Chimney Sweep”
d
and “Service”
e
button, for approx. 5 seconds, until the display
shows “Lxx” (e. g. L80).
B
Set the boiler to partial load “L25” for the 80 kW or
“L20” for the 100 kW boiler.
B Pressing the “Chimney Sweep”
d
button for higher
values or the “Reset”
c
button for lower values.
B
Read out the differential pressure.
The differential pressure (p
Gas
– p
Air
) must be
-0.02 inch W.C. (-5 Pa) (±0.02 inch W.C. = ± 5 Pa)
(read-out on pressure gauge: -0.04 – 0 inch W.C. =
-10 – 0 Pa).
B
Enter the value measured in the start-up report.
1
2
6720615033-017.1TD
6720615033-018.1TD
B
Contact the relevant gas utility company if
the required inlet gas pressure is not
available.
B
Install a gas pressure regulator before the
gas burner fitting if the supply pressure is
too high.
1
2
6720615033-019.1TD