Riello 46662X Installation, Use And Maintenance Instructions page 32

3.4 Accessibility to the interior of the combustion head
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• Switch off the electrical power.
• Remove the fixing screws 11).
• Remove the 8 fixing screws 1) and the protections 3-4).
• Unscrew the locknuts 6) and release the tie rod 7, open the air suction duct 12) on the hinge after disconnecting it from ventil
connection.
• Disconnect the electrode wires 2) of ignition pilot 14).
• Disconnect the ignition pilot 14) unscrew the connector 15).
• Unscrew the screw 8) with pressure gauge.
• Extract the internal part 13) of the combustion head.
• With burner closed, the accessibility to the interior combustion head is possible by removing the cover 12).
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CHAPTER Installation
Fig. 11