Conversion to propane 3
7
We reserve the right to make any changes due to technical modifications.
Conversion instructions Logano GA124 special gas-fired boiler • Issue 2012/10
20. Turn gas burner 180° and unscrew bottom burner
box panel.
21. Install the new main gas orifices and copper
gaskets. Check with Tab. 1 that the correct
orifices for operation of the boiler are installed.
22. Screw bottom burner box panel into place again.
Replacing pilot gas orifice
23. Unscrew ignition pilot line from pilot burner.
24. Remove pilot orifice.
25. Place the new BBR 12 pilot orifice in the pilot burner.
26. Screw the pilot line to the pilot burner unit.
27. Check that the pilot burner unit is correctly seated
compared to the main burner.
28. Install gas burner in boiler in reverse order of
removal. Tighten the fixing nuts well.
Make sure that the front edge of the burner box
cover ( Fig. 8, page 8) is properly engaged in the
sealing grommets ( Fig. 8, page 8).
Fig. 6 Removing gas burner
1 bottom burner box panel
Orifices sizes for propane
Model GA124 -17 GA124 -23 GA124 -30
Orifice size 175 160 160
Number 234
Tab. 1 Orifice sizes
USER NOTE
The orifice sizes are for installations
between 0 and 8500 feet above see level.
Follow the "Conversion instructions for
high altitudes" for installations between
8501 and 12000 feet above sea level.
Fig. 7 Pilot burner
1 Ignition cable
2 Pilot burner
3 Main burner
4 Pilot orifice
5 Pilot gas line
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