Then Carry Out Start-Up Procedures - Buderus Logano G234X Installation And Maintenance Instructions Manual

6.5

Then carry out start-up procedures.

The following commissioning work must be performed
regardless of the control unit type.
7. Look at the pilot burner through the inspection hole [1]
in the burner cover.
Fig. 32 Inspection hold in the burner cover
1 Inspection hole
8. Turn gas valve ON/OFF switch [1] counterclockwise to
ON position.
9. The burner control unit must generate ignition sparks
towards the pilot burner. The pilot flame must appear
and then ignite the main burner.
If the main burner does not ignite, close the gas shut-
off. Disconnect heating system from the power supply
and inform your customer service technician or LP gas
company.
10. If the main burner has ignited, the gas valve must be
checked for leaks with soap solution. If no leaks are
found, continue with step 12.
11. If leaks have been found, switch the ON/OFF switch
on the gas shut-off valve [1] clockwise to the OFF
position. Disconnect heating system from the power
supply and set the thermostat to the lowest setting.
Seal the leaks. Repeat steps 1 and 2.
For aquastat control units, continue with steps 3
and 4.
For Logamatic 2000 control units, continue with
steps 5 and 6.
Then repeat steps 7 to 10 regardless of the control
unit in use.
Logano G234X - Technical specifications are subject to change without prior notice.
Commissioning the heating system
Fig. 33 Gas valve
1 ON/OFF button (at ON position)
2 Screw plug for gas connection pressure test port
3 Safety screw for nozzle pressure setting
4 Screw plug for nozzle pressure test port
5 Safety screw for ignition nozzle pressure setting
12. Check the supply gas pressure while the boiler is
operating. The connection pressure for natural gas
must be between 7 and 10.5 inches W.C. (17.4 to
26.2 mbar) and between 11 and 13 inches W.C. for
propane gas (27.4 to 32.4 mbar). Record the values
measured in the commissioning log (
Boiler Natural Gas
capacity
[Inch
W.C.] [mbar]
38 3.0 7.6
45 4.1 10.4
55 4.6 11.5
64 4.4 10.9
Tab. 11 Nozzle pressure
6
page 35).
Propane
[Inch
W.C.] [mbar]
10.6 26.5
10.5 26.2
10.3 25.8
10.3 25.9
31