Buderus Logano GA124 Conversion Instructions page 13

Start-up instructions
23. Turn gas valve ON/OFF button clockwise to OFF
position.
24. Close main gas shut-off.
25. Disconnect heating system from the power supply
and set the thermostat to the lowest setting.
26. Remove pressure measuring nipple and pressure
gauge for measuring gas supply pressure and
manifold pressure from the gas valve and close the
openings with the screw plugs.
27. Repeat steps 1 to 10 (depending on the control) and
20 to restart the heating system. Check the screw
plugs for leaks with soap solution. If no leaks are
found, continue with step 31. If leaks are found,
close gas shut-off and switch ON/OFF button on gas
valve clockwise to the OFF position. Disconnect the
heating system from the power supply.
28. Seal leaks. Open gas shut-off and repeat step 24.
29. Carefully wipe away the soap solution to prevent
corrosion caused by the alkali content of the soap.
30. Check the function of the maximum aquasmart to
make sure that it switches off the boiler as soon as
the boiler water temperature set at the aquasmart is
reached. Record the result in the commissioning
protocol of the installation and maintenance
instructions.
31. Replace front panel of boiler.
We reserve the right to make any changes due to technical modifications.
Conversion instructions Logano GA124 special gas-fired boiler • Issue 2012/10
1
Fig. 15 Gas valve
1 ON/OFF button (at ON position)
4
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