Viessmann VITODENS 343-F WS4A Installation And Service Instructions Manual page 12

Preparing for installation
Preparing the installation of the compact boiler
1. Fit the retaining clip to the back
panel.
2. Secure the elbow fitting to the pre-
assembled drain pipe.
Note
The drain line may be fitted either
on the r.h. or the l.h. side to suit
local conditions.
Connecting the condensate hose
1. Pull the drain hose from the open-
ing and route as backup loop
(siphon).
2. Fill approx. 100 ml water into the
drain hose.
12
(cont.)
3. Fit the drain pipe to the elbow fit-
ting.
4. Connect the drain pipe to the on-
site drain connection.
3. Connect the drain hose to the on-
site drain connection.
Note
Test for leaks prior to finalising the
positioning.
4. Push the boiler against the wall.