12
Fig. 6.12
•
Remove the four retention nuts (1,
fig. 6.12) of the heat exchanger
and remove heat exchanger (2, fig.
6.12).
•
Drain detached heat exchanger by
tilting it several times.
•
Close flow and return openings
with the transport plugs. Supplied
with new heat exchanger.
•
Place heat exchanger in the spare
part cardboard box.
•
Return removed heat exchanger to
Vaillant.
GW 902/0
