8
Symbol Meaning
Connection to the internal unit
DHW cylinder flow (on the heating water
side)
G 1
¼
+
Heating water return and DHW cylinder re-
turn
G 1
¼
Heating water flow
G 1
¼
A
Cable entry < 42 V
—
B
Cable entry 400 V~/230 V~, > 42 V
—
1.
Prepare the connections on the heating water and
the DHW side.
Flush the heating system.
2.
Prepare the electrical connections.
Cable lengths in the internal/external unit plus wall clearance
Cables
Internal unit
External unit
Power cables
■
Heat pump control unit 230 V~
2.0 m
—
■
Compressor 230 V~/400 V~
—
1.5 m
Other connecting cables
■
230 V~, e.g. for circulation pumps
2.0 m
—
■
< 42 V, e.g. for sensors
2.0 m
—
BUS cable for internal/external unit
■
12 V
2.5 m
1.5 m
■
43 V
2.5 m
1.5 m
Recommended power cables
Internal unit
Type AWB/AWB-AC
201.B04 to B13, 201.C10 to C16
Heat pump control unit 230 V~
Cable cross-section
■
Without power-OFF
3 x 1.5 mm
2
■
With power-OFF
5 x 1.5 mm
2
Instantaneous heating water heater
Cable cross-section
■
400 V~
5 x 2.5 mm
2
■
230 V~
7 x 2.5 mm
2
Max. cable length
25 m
External unit 230 V~
Type AWB/AWB-AC
201.B04
201.B05
201.B07
201.B10
201.B13
Compressor
Cable cross-section
3 x 2.5 mm
2
3 x 2.5 mm
2
3 x 2.5 mm
2
3 x 2.5 mm
2
3 x 4.0 mm
2
Max. cable length
29 m
25 m
25 m
20 m
20 m
or
or
Cable cross-section
—
—
—
3 x 4.0 mm
2
3 x 6.0 mm
2
Max. cable length
—
—
—
32 m
30 m
Preparing for installation
Requirements regarding on-site connections
(cont.)
5700 542 GB
Installation
