40
External unit: Overview of connections
Opening external unit wiring chamber
Type AWT/AWT-AC
241.A04
241.A05/A07
241.A10/A13/B10/B13/B16
A
Fig. 31
A
Fig. 32
A
Fig. 33
A
Wiring chamber:
■
BUS connection to the internal unit
Note
Do not
interchange the BUS connection wires
between the internal and external units.
■
Compressor power supply
Connecting internal and external units
Type AWT/AWT-AC
241.A04
241.A05/A07
241.A10/A13
241.B10/B13/B16
230 V~
230 V~
230 V~
400 V~
A
B
12V COM
COM 43V
C N L
?
C
Fig. 34
12VCOM COM43V
COM
Ni
?
Li
N
0
L
0
A
C
B
?
Fig. 35
?
N L
?
N L
C2 C1
12VCOM COM43V
A
B
C
Fig. 36
?
N L
?
N L3
C2 C1
L2L1
12V COM
COM 43 V
A
B
C
Fig. 37
A
Wiring chamber, external unit: See page 40.
B
BUS cable between the external and internal unit
Recommended cable: 3 x 1.5 mm
2
The cores are
not
interchangeable.
C
AVI PCB in the internal unit: See page 33.
Note
Route BUS cable for internal/external unit in the
230 V~ voltage area.
Installation sequence
Electrical connection
(cont.)
5700 582 GB
Installation
