BLUEHELIX TECH RRT 24 H
185
EN
cod. 3541C661 - Rev. 00 - 10/2018
Replacing the main exchanger
A
Before carrying out the following instructions it is advisable to protect the room and the boiler’s electrical box
against accidental water spillage.
fig. 40- Main exchanger
•
Disconnect the power supply and close the gas cock ahead of the valve
•
Disconnect the fume sensor connector
•
Disconnect the fan connector
•
Disconnect the connector of the ignition electrode connected to the board.
•
Drain the water from the boiler heating circuit.
•
Extract the flue connection (concentric or accessory for separate ducts)
•
Remove the fan
•
Remove the clips of the two pipes on the exchanger, pump and hydraulic unit
•
Remove the 2 top
screws “5”
securing the exchanger to the frame (fig. 40)
•
Loosen the 2 bottom
screws “5”
securing the exchanger to the frame (fig. 40)
•
Remove the exchanger
•
Fit the new exchanger on the bottom
screws
“5”
•
For assembly, proceed in reverse order
1
2
1
2
1
3
5
5
5
6
4
1
5
