32
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
Wiring chamber, front
Fig. 24
Note
Diagram without terminal covers (see also page 70)
M
■
ON/OFF switch (all types)
■
Power supply, power circuit, compressor
3 x 400 V/50 Hz (only type BW 301.C090,
BW 301.C120, BW 302.C090, BW 302.C110 and
BW 302.C140, see also pos.
A
in fig. 23)
N
MCB/fuse, power circuit, compressor 2 (only type
BW 302.C090, BW 302.C110, BW 302.C140,
BW 302.C180 and BW 302.C230)
P
MCB/fuse, power circuit, compressor 1
R
Soft starter, compressor 2 (only type
BW 302.C090, BW 302.C110, BW 302.C140,
BW 302.C180 and BW 302.C230)
S
MCB/fuse, power circuit, system components (con-
sumers at terminal strip
C
T
MCB/fuse, control circuit (see separate "Connec-
tion and wiring diagram")
U
Soft starter, compressor 1
Terminal strip for system components
■
Primary pump(s):
On-site connection, see separate "Connection and
wiring diagram".
Factory wiring on main and expansion PCB (termi-
nals 211.1, 224.2), see separate "Connection and
wiring diagram".
■
Secondary pump(s):
On-site connection, see separate "Connection and
wiring diagram".
Factory wiring on main and expansion PCB (termi-
nals 211.2, 224.3), see separate "Connection and
wiring diagram".
Installation sequence
Electrical connections
(cont.)
5787 232 GB
Installation
Содержание BW 301.C090
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