22
■
The external unit is pre-charged with refrigerant
R410A.
■
In the following cases, fit oil lift bends in the rising
pipe:
–
In heating mode, if the internal unit is installed
higher than the external unit: See diagram below.
–
In cooling mode, if the internal unit is installed
lower than the external unit.
Routing refrigerant lines
Type AWT/AWT-AC
221.A04
221.A05
221.A07
221.A10
221.B10
221.A13
221.B13
221.B16
Refrigerant lines
Min. line length
3 m
3 m
3 m
3 m
3 m
3 m
Max. line length
20 m
30 m
30 m
30 m
30 m
30 m
Max. height differential internal unit
–
exter-
nal unit
10 m
15 m
15 m
15 m
15 m
15 m
Note
No topping up is required for line lengths between 3
and 12 m.
Internal unit above external unit
Internal unit below external unit or at same level
5000
5000
A
B
D
E
C
D
Fig. 14
C
A
B
D
Fig. 15
Note
Both diagrams illustrate heating mode.
A
Internal unit
B
Hot gas line
C
Liquid line
D
External unit
E
Oil lift bends
Installation sequence
Connecting refrigerant lines
5700 562 GB
Installation
