D2CND0 D2CND0 D2TND0
D2TND0 D2TND024A4AA
Wall-mounted condensing boiler
ESIE17-09 / 2017.11
Servicing manual
21
•
Isolate the appliance from power supply and closedown
the gas valve.
•
Drain the water from the boiler ( refer to Section 4.1 ).
•
Open the appliance (refer to Section 4.2 ).
•
Remove the left cover of the boiler ( unscrew the screws
that connects hermetic cabin and left cover)(1).
•
Undo the screws which connect expansion vessel and
flow hydroblock (2).
•
Disconnect the expansion vessel hose by using wrench
(3).
4.10
Expansion Vessel Removal
•
Undo the screws which connect expansion vessel and
hermetic cabinet (4).
•
Take out the expansion vessel from the appliance by slid
-
ing movement (5).
4 Part replacement
(3)
(2)
•
Re-assemble in reverse order.
(5)
(4)
(1)
