Technical data

29Installation and maintenance manual atmoCRAFT GB
6.2.5 Function check
To complete the gas setting it is necessary to carry out a
function check as follows:
• Open the gas-cock and start up the boiler as shown in
Chapter 6.
• Check the boiler and heating system for tightness.
Caution!
Also make sure that all the gas pressure
measuring nipples are tightly closed.
• Check the correct exhaust gas removal on the flow
safety device.
• Check the over-ignition and consistent flame structure
of the main burner.
6.2.6 Changeover from natural gas to liquid gas P
Changing the nozzles
1
2
Fig. 6.3 Changing the nozzles
• Turn the boiler off.
• Replace the ignition burner nozzle for natural gas (1)
by the nozzle for liquid gas P (1x24).
• Unscrew the burner nozzles for natural gas (2) and screw
in the burner nozzles for liquid gas P (165) gas-tight.
1
Fig. 6.4 Pipe connection with stop-cock
• Fit the pipe connection with stop-cock (1) onto the gas
fitting.
• Connect the supplied cable connection in accordance
with the circuit diagram.
Start-up and setting
Caution!
Observe the instructions for gas connection in
Chapter 6.2 in the installation instructions.
• Start the boiler up in accordance with Chapter 6 of the
installation instructions.
• Re-set the nozzle pressure in accordance with Chapter
6.2.3 of the installation instructions.
• Check all the screwed connections which have been
released and tightened again during the changeover
for tightness using leak testing spray.
• Stick the enclosed sticker “changed over to liquid gas”
onto the gas distributor pipe.
Note!
Keep the components removed during the
changeover and this fitting instruction for
possible future refitting.
Start-up 6