23
■
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 the 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, indoor unit
–
out-
door 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 the refrigerant lines
5776 028 GB
Installation
Summary of Contents for AWT 221.A04
Page 77: ...77 Maintenance Checking the fuses cont 5776 028 GB Maintenance...
Page 87: ...87 Indoor unit parts lists Indoor unit hydraulics cont 5776 028 GB Components...
Page 90: ...90 Indoor unit parts lists Indoor unit cylinder cont 5776 028 GB Components...
Page 137: ...137 Wind direction 11 Wind loads 11 Keyword index Keyword index cont 5776 028 GB...
Page 138: ...138 5776 028 GB...
Page 139: ...139 5776 028 GB...
