Viessmann VITOCAL 300-A Installation And Service Instructions Manual page 173

Type awc-i-m, aw-o-m compact heat pump with electric drive, 230 v~
Table of Contents

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Overview of the PCBs and connection options
Sensors and KM BUS on PCB 3 (sensor PCB)
Pos. Sensor / KM BUS
e¢Q
KM BUS
Connection and wiring diagrams
(cont.)
Type
ID
KM BUS
Terminals
3X1.25
3X2.25
173

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