Viessmann Vitoclima 300-S Service Instructions For Contractors page 37

Internal devices
(cont.)
Wall mounted device, type W305H
A Connection with external unit
B Display PCB
C Control PCB
D Fan
E Room temperature sensor
F Temperature sensor at the heat
exchanger of the internal device
Colour coding to DIN IEC 60757
BK Black
BN Brown
BU Blue
GNYE Green/Yellow
Connection and wiring diagrams
G Ioniser
H Electrostatic filter
K Stepper motor for air flap
L Stepper motor for air flap
M On-site time switch (option)
N Power supply, 230 V~, 50 Hz
GY Grey
RD Red
WH White
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