Service manual

Trouble shooting manual EN E000129004
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1.3. Nomenclature
Fig 2
1 Frame
2 Cover
3 Control panel
4 Control panel cover
1.4. Cover removal
Warning: isolate the boiler from the mains
electricity supply before removing any covering or
component.
For all the checks and maintenance operations it is
necessary to remove the cover.
To remove the cover:
1. Turn the hexagonal nut F (fig 3) counter-clockwise and
free the hook from the boiler frame.
Fig 3
2. Pull the bottom of the cover until the control panel is
completely out of the cover, than lift the cover and free it
from the hooks G (fig 4) placed on the top of the boiler.
3. Re-assemble in reverse order.
Fig 4
1.5. Emptying the main circuit
1. Open the c.h. flow and return valves.
2. Open the control valve used for the filling of the c.h.
circuit drain cock and drain the boiler.
3. Drain completely the boiler by turning the knob of the
fill and relief valve.
1.6. Emptying the direct hot water circuit
Turn off the d.h.w. inlet isolating valve; turn on the hot
water taps and any drain cocks.
1.7. Control panel
Warning: isolate the boiler from the mains
electricity supply before removing any covering or
component.
To gain access to the parts located behind the control
panel proceed as follows:
1 Remove the cover (section 1.3).
2 Remove the screw H (fig 5) and lower the control panel.
Fig 5
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4