8
C
DHW circulation
D
Opening for 230 V cables
E
Cold water
F
Liquid line
G
Hot gas line
H
Heating water flow
K
Heating water return
L
Solar circuit return
M
Solar circuit flow
Connection sizes for hydraulic connections
Pos.
Sym-
bol
Meaning
Connection
B
–
DHW
Rp ¾
C
–
DHW circulation
G 1
E
–
Cold water
Rp ¾
F
Refrigerant lines from/to
the external unit:
■ Liquid line
7
connection pipe:
(supplied pipe bends)
10 mm
UNF thread:
⅝
For type AWT-AC 241.A04, a reduction
from 10 to 6 mm is necessary down-
stream of the pipe bend (reducer ⅝ to
⁷
⁄
₁₆
supplied).
G
■ Hot gas line
7
connection pipe:
(supplied pipe bends)
16 mm
UNF thread:
⅞
For type AWT-AC 241.A04, a reduction
from 16 to 10 mm is necessary down-
stream of the pipe bend (reducer ⅞ to
¾ supplied).
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 sys-
tem
M
–
Solar circuit flow
1.
Prepare the connections on the heat-
ing water and the DHW side.
Flush the heating system.
2.
Prepare the electrical connections.
Preparing for installation
Requirements regarding on-site connections
(cont.)
5623 661 GB
