ARENA 30 C
33
Fan
• Isolate gas and electricity supplies
• Remove the lower protection plate and jacket
• Remove the ignition device “A” (fig. 26) from the valve body, removing the fastening screw “B” (fig. 25)
• Unscrew the union nut between the gas valve and the gas inlet pipe
• Remove the flexible inlet air pipe from the Venturi mouthpiece on the fan
• Unscrew the four nut “A” fixing the fan (fig. 25)
•
Unscrew the fastening screws “C” (fig. 24) and remove the Venturi unit + gas valve
Burner and electrodes
• Follow the “cleaning procedure” at page 29 from 1 to 8 to remove the burner assembly
• Carefully remove the hexagonal ceramic fibre
• To change the burner, remove the three fastening screw “A” (fig. 26)
• To change electrodes, unscrew the two screws to the supporting plate and remove it. Undo the brass nuts,
to electrodes “B” (fig. 27). Reassemble reverce order.
DHW Heat exchanger
• Isolate gas, electricity and water supplies
• Remove the lower protection plate and jacket. Slide forward the control panel.
• Drain water from DHW and CH circuits
• Unscrew the four A nuts connecting the heat exchanger and remove it
A
A
A
B
Fig. 25
Fig. 26
Summary of Contents for ARENA 30 C
Page 31: ...ARENA 30 C 31 fig 23g fig 23f fig 23h N O ...
Page 43: ......
