Buderus Logano GC124 II/SP Installation And Service Instructions Manual page 27

Placing the heating system in operation
Verifying the appliance
Main gas orifice identification
Boiler size 18
Natural gas 285
LP 180
Tab. 7 Main gas orifice identification. These parts are only
valid for the U.S.A. from 0-8500ft in elevation.
3. Fill heating system and bleed the complete system
including all radiators and zones.
4. Open front door ( Fig. 19).
Testing gas train for leaks
5. Open gas manual shut off in the gas line.
6. Check all gas connections and pipes to the gas
valve for leaks using soapy water. If no leaks are
found, continue at step 8. If any leaks are found,
close gas manual shut off.
7. Seal leaks and repeat at step 6.
8. Wait five (5) minutes until all gas has dissipated.
Check for odor of gas around the heating system.
This test must also be conducted at floor level,
because some gas types are heavier than air and
may accumulate at floor level.
9. Follow the safety information on the following pages.
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Gas Boiler Logano GC124 II/SP • Issue 07/2006
25 32
275 270
175 170
Fig. 19 Opening front door
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