Viessmann Vitoligno 300-H Installation And Service Instructions For Contractors page 146

Connection and wiring diagram
PCB HKK 2.01
Fig. 90
HC 1: Flow temperature sensor, heating circuit 1
d-A
HC 2: Flow temperature sensor, heating circuit 2
d-S
or
TWE: Cylinder temperature sensor
TWE: Cylinder temperature sensor
d-D
or
SOL: Collector temperature sensor
or
HC 3: Flow temperature sensor, heating circuit 3
SOL: Cylinder temperature sensor, solar
d-F
SOL: Default speed for solar circuit pump
d;Ö
A Jumper for parameter settings, output
Factory setting: Closed (PWM), solar circuit pump
Information on the jumpers
Jumper 0-10 V
A
for output
d;Ö
PWM
System-specific slot assignment:
"System examples"
146
A
d;Ö
Jumper at top:
Voltage signal 0...10 V
Note
The slot assignment on this PCB may differ subject to
the system version.
0-10 V Jumper at bottom:
PWM signal
PWM