Viessmann Vitoligno 300-C Installation And Service Instructions Manual page 35

Electrical connections
Outside temperature sensor connection
Plug : Outside temperature sensor
!
Fig. 25
Assignment
1
2
Buffer temperature sensor connection
Plug : Buffer temperature sensors
)
Fig. 26 Connection for 5 buffer temperature sensors
Plug assign- Function with 5 sensors
ment )
1 Buffer temperature sensor 1 (top)
2 Buffer temperature sensor 2
3 Buffer temperature sensor 3
4 Buffer temperature sensor 4
5 Buffer temperature sensor 5
6 GND (for all 5 sensors)
Connecting heating circuits, solar circuit, DHW heating, etc.
Various parts of a heating system can be connected to
the boiler control unit. The associated appliances can
be directly connected to the HKK PCB or to extension
kits (via KM-BUS).
(cont.)
Function
Ai
GND
Additional information
Pt1000
—
Additional infor-
mation
Optional
Optional
!
Please note
Incorrect connections may cause malfunctions.
Observe the instructions provided in this chap-
ter.
Installation sequence
Sensor type
Pt1000
Pt1000
Pt1000
Pt1000
Pt1000
—
35