Installation
3
Replacing the Heating Return Connection Pipe
1.
Loosen screw, remove plug-in
connector and connector pipe
.
2.
Loosen connector and remove
condensate pipe
.
3.
Dismantle the vent system, loosen
the two screws on the vent pipe
adaptor
and remove adaptor.
4.
Remove the plug-in connector and
dismantle the return pipe
.
5.
Loosen the mounting bracket nuts
and remove the heat exchanger
.
6.
Loosen screw and remove plug-in
connector
from the heat
exchanger
.
7.
Attach new plug-in connector
to
heat exchanger
using screw.
8.
Reassemble the boiler in reverse
order. Pay extra attention to correct
installation of gasket
G
onto the
heat exchanger
when
reinstalling the vent pipe
adaptor
.
9.
Fill the boiler with water, flush and
check for leaks.
Vitodens 100
Installation and Service
Instructions
Use new gaskets and pipe sealing
compound on all gas and water pipe
connections
.
Lubricate all hot water O-rings with
supplied lubricant.
E
A
F
C
B
D
G
IMPORTANT
Gas leaks can lead to explosions.
Check gas pipe seals to ensure that
there are no leaks.
WARNING
