Viessmann Vitocal 252-A Series - Page 86

86
Outdoor unit with 2 fans, types ...A16 to A19
72
2 3 4 5 6
CAN H
CAN L
GND
GN
WH
BN
CAN
WH
GN
BN
GND
Low -
High +
Fig. 66
Colour coding to IEC 60757:
BN Brown
GN Green
WH White
Electrical connections
Indoor/outdoor unit CAN bus communication cable… (cont.)
6222080
Installation