Fan replacement
• Disconnect the power supply and close the gas cock ahead of the valve.
• Remove the fan electrical connections.
• Undo the screws "1" and gas pipe connection "2".
• Remove the venturi "3".
1
1
fig. 54
Replacing the pressure transducer
Before carrying out the following instructions it is advisable to protect the room and the
A
boiler's electrical box against accidental water spillage.
• Disconnect the power supply and close the gas cock ahead of the valve.
• Drain the water from the heating circuit.
• Remove the pressure transducer connector and retaining clip "1".
• Remove the pressure transducer "2".
326
2
2
1
fig. 56
cod. 3541V484 - Rev 02 - 01/2024
BlueHelix HiTech RRT H
fig. 55
EN