Viessmann Vitoligno 250-S Installation And Service Instructions For Contractors page 18

Installation sequence
Electrical connections
Plug a;A : Buffer cylinder control valve
Fig. 12 Max. 0.5 A
Plug : Buffer cylinder sensor
)
A
B
C
Fig. 13
Buffer cylinder sensor, bottom (Pt1000)
A
Buffer cylinder sensor, centre (Pt1000)
B
Buffer cylinder sensor, top (Pt1000)
C
Plug : Outside temperature sensor
!
A
Fig. 14
Pt1000
A
18
(cont.)
181
9
1