Viessmann VITODENS 050-W Installation And Service Instructions Manual page 78

Designs
Connection and wiring diagrams
Programming unit
A
B
C
D
E
Power supply
A
Gas pressure switch (accesso-
B
ries)
Outside temperature sensor
C
(accessories)
78
F
(cont.)
Room temperature controller
D
(accessories)
Time switch or wireless receiver
E
(accessories)