33
■ The external unit is pre-filled with
refrigerant R410A.
■ Install oil lift bends (see illustration)
into the vertical lines in the following
cases:
– In heating mode, if the internal unit
is installed higher than the external
unit.
– In cooling mode, if the internal unit is
installed lower than the external unit.
Routing refrigerant lines
Vitocal 242-S, type AWT-AC
241.A04
241.A07
241.A10
241.A13
Refrigerant lines
Min. line length
3 m
3 m
3 m
3 m
Max. line length
20 m
30 m
30 m
30 m
Max. height differential internal
unit – external unit
10 m
15 m
15 m
15 m
Note
No topping up is required for line lengths
between 3 and 12 m.
5000
5000
B
C
D
E
A
Example: type AWT-AC 241.A07
A
Internal unit
B
External unit
C
Liquid line
Installation sequence
Connecting refrigerant lines
5623 661 GB
Installation