Ferroli BLUEHELIX TECH RRT 34 C Manual page 39

BLUEHELIX TECH RRT 34 C
Replacing the circuit board
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• Isolate the power supply and close the Gas isolation valve to the boiler.
• After lowering the PCB housing, lift the cover by pulling the tabs open "2".
• Remove all the electrical connections
• Remove the PCB by pulling the tabs open on the side & lifting it out "4".
• Insert the new PCB and reconnect the electrical connections.
To update the circuit board data, use the "KEY" device, following the instructions attached to the kit.
Electrode replacement or maintenance
• Isolate the power supply and close the Gas isolation valve to the boiler.
• Disconnect the white ignition lead from the PCB housing and remove the electrode by undoing the screws "1".
• Remove the exchanger cover and remove the burner (see fig. 43).
• Clean the electrode (see fig. 43).
• Refit the clean or new electrode and secure it with the 2 x screws "1" (ensure the gasket is replaced or not damaged).
• After securing in place, carefully check the distance between the electrodes (see fig. 43).
• Refit and secure the burner (see fig. 43) (ensure the burner insulation is not damaged otherwise it must be replaced).
• Refit and secure the burner cover (see fig. 43) (ensure the burner cover seal is not damaged & less than 5 years old).
• When installing / replacing the burner a combustion calibration must be carried out (See section 3 calibration pro-
cedure).
EN
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fig. 45
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fig. 46
cod. 3541O990 - Rev. 01 - 07/2018
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