BLUEHELIX TECH RRT 24 C
39EN
cod. 3541P250 - Rev. 01 - 07/2018
Replacing the circuit board
fig. 45
• 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
fig. 46
• 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).
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General
Weight and Dimensions
