Viessmann Vitopend 100-W Installation And Service Instructions Manual page 56

Commissioning, inspection, maintenance
Further details regarding the individual steps
2. Remove 2 screws from each of the
left and right combustion chamber
side panels A. Remove combus-
tion chamber side panel A.
3. Pull out plug B.
4. Remove pipe clip C.
5. Undo union nut D.
Note
When undoing the fitting, counter-
hold the torque with a second
open-ended spanner.
56
(cont.)
6. Pull out heat exchanger E.
7. Clean heat exchanger E if
required, with compressed air or a
soapy solution and flush with clean
water.
8. Install heat exchanger E in
reverse order using new gaskets.