2. Change over the rotational direc-
tion switch:
Switch position I for central heating
return from the left (delivered con-
dition).
Switch position II for central heat-
ing return from the right.
Checking the Vitotronic 200-H (accessories)
The Vitotronic 200-H is connected to the control unit via the LON system. To
test the connection, carry out a subscriber check at the boiler control unit (see
page 39).
Repairs
(cont.)
81
Troubleshooting
5692
779
GB
Summary of Contents for VITOLADENS333-F
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