32
Wiring chamber, top
F3
Fig. 28
A
Power supply for power circuit (compressor)
3 x 400 V/50 Hz (only type BW 302.D180 and
BW 302.D230, see also pos.
M
in Fig. 29)
B
Message and safety connections (safety chain)
with distribution terminals
C
Terminal strip for system components (consumers)
3 x 400 V~/230 V~ (for connection, see separate
"Connection and wiring diagram".)
Switched phase can be used for on-site system
components. Observe max. output.
D
Contactors for primary and secondary pumps
E
EEV PCB
F
X24 Slot for LON communication module
G
Controller and sensor PCB (Heat pump control
unit)
H
F3 Fuse 6.3 A (slow)
K
Main PCB with expansion PCB
L
X31 Coding card slot
Installation sequence
Electrical connections
(cont.)
5838144
Installation
Summary of Contents for Vitocal 300-G Pro BW 302.D090
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