Viessmann Vitoclima 300-S Service Instructions For Contractors page 42

Connection and wiring diagrams
Internal devices
(cont.)
G Temperature sensor at the heat
exchanger of the internal device
H MegaTool (not available)
K Connection with external unit
Colour coding to DIN IEC 60757
BK Black
BN Brown
BU Blue
GNYE Green/Yellow
GY Grey
42
L Remote control receiver with
LEDs and user interface
M Power supply, 230 V~, 50 Hz
N Fan
First floor Orange
RD Red
VT Violet
WH White