8
Connection sizes for hydraulic connections
Pos.
Sym-
bol
Meaning
Connection to the internal unit
B
–
DHW
Rp
¾
C
–
DHW circulation
G 1
E
–
Cold water
Rp
¾
F
Liquid line
Type AWT/AWT-AC
Pipe
7
UNF thread
241.A04
6 mm
⅝
(Reducer
⅝
x
⁷
⁄
₁₆
supplied)
241.A05 to A13
10 mm
⅝
241.B10 to B16
10 mm
⅝
G
Hot gas line
241.A04
12 mm
⅞
(Reducer
⅞
x
¾
supplied)
241.A05 to A13
16 mm
⅞
241.B10 to B16
16 mm
⅞
H
Heating water flow
Cu 28 x 1 mm
K
Heating water return
Cu 28 x 1 mm
L
–
Solar circuit return
DN 20 pipe sleeve for multi connect system
M
–
Solar circuit flow
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
Preparing for installation
Requirements regarding on-site connections
(cont.)
5700 582 GB
Installation
