Outdoor Temperature; Internal Wiring Diagram - Viessmann Vitocontrol-S, WB2 Installation, Start-Up And Service Instructions Manual

Internal Wiring Diagram

12VAC
TR
120VAC
L G N L
L G N
Power supply, 120 VAC,
7 A, 1 PH
Supply pump, 120 VAC,
6.3 FLA
Dry contact, 120/24 V, 5 A
compiled failure alarm
Outdoor temperature sensor
14
G N
M
Common supply temperature
sensor
Party switch (dry contact)
External heat demand
(dry contact)
KM-BUS
Viessmann-BUS
I
I
F1 Fuse 0.63 A/250 V, time
delay
F2 Fuse 6.3 A/250 V, time delay