Viessmann Vitoclima 300-S Service Instructions For Contractors page 43

External units
Type OD306H
A Control PCB
B Compressor
C Choke coil
D Four-way reversing valve
E Defrost heater, 230 V~ (option)
F Fan
Connection and wiring diagrams
G 1 Temperature sensor at the heat
exchanger of the external unit
2 Compressor temperature sen-
sor
3 Outside temperature sensor
4 Suction gas temperature sensor
on the compressor
5 Processor temperature sensor
H Connection with internal device A
K Connection with internal device B
L Power supply, 230 V~, 50 Hz
43