Viessmann Vitoclima 300-S Service Instructions For Contractors page 39

Internal devices
(cont.)
M Stepper motor for horizontal air
flap
N Condensate pump
Colour coding to DIN IEC 60757
BK Black
BN Brown
BU Blue
Connection and wiring diagrams
O Interface RS485
P On-site time switch (option)
GNYE Green/Yellow
GY Grey
RD Red
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