Viessmann VITOCAL 300-A Installation And Service Instructions Manual page 71
Type awc-i-m, aw-o-m
compact heat pump with electric drive, 230 v~
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Also See for VITOCAL 300-A:
- Installation and service instructions manual (208 pages) ,
- Installation and service instructions for contractors (124 pages) ,
- Operating instructions manual (60 pages)
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Electrical connections in the control unit
Overview of the PCBs
Installed positions of the PCBs
A PCB 1 (cross connect PCB) with
control unit fuse
The terminal markings on the PCBs
(e.g. X1.2) are preceded by the num-
bers 1 to 3 (e.g. 3X1.2). These num-
bers are allocated to the 3 PCBs.
Example:
Installation sequence
(cont.)
B PCB 2 (main PCB)
C PCB 3 (sensor PCB)
71
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