Viessmann VITOCAL 300-A Installation And Service Instructions Manual page 72
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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Installation sequence
Electrical connections in the control unit
3X1.2: Terminal 2 of terminal strip
X1 on PCB 3
1X1.?: Any earth terminal of term-
inal strip X1 on PCB 1
1X2.N: Any neutral conductor term-
inal of terminal strip X2 on
PCB 1
PCB 1 (cross connect PCB)
X1 Terminal for earth conductor incl.
feed
X2 Terminal for neutral conductor
incl. feed
X3 Terminal for power supply to the
control unit and auxiliary compo-
nents
72
(cont.)
X5 Terminal for electrical connecting
cable (control cable)
F1 Fuse for control unit and control
panel control circuit
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