10
1874
1904
1295
1448
1523
1598
1673
1748
1908
600
677
42
149
681
A
B
C
D
E
A BC D E
FG
A
B
C
D
E
FG
110
38
H
H
150
225
300
375
450
148
148
209
C DE
G
F
A B
Fig. 1
A
Heating water return G 1¼ (female thread)
B
Cold water G ¾ (female thread)
C
DHW circulation G ¾ (female thread)
D
DHW G ¾ (female thread)
E
Heating water flow G 1¼ (female thread)
F
Liquid line: See following table.
G
Hot gas line: See following table.
H
Cable entry for electrical cables on the back of the
appliance:
■
Extra low voltage (ELV) leads < 42 V
■
Power cables 400 V~/230 V~
Requirements for on-site connections
Indoor unit
6199592
Installation