25
Tighten nuts with the following torque:
Type AWT/AWT-AC
Line
Connection to ex-
ternal unit
Torque in Nm
221.A04
Liquid line
7
6 mm
⁷
⁄
₁₆
UNF
14 to 18
Hot gas line
7
12 mm
¾
UNF
50 to 62
221.A05
Liquid line
7
10 mm
⅝
UNF
33 to 42
Hot gas line
7
16 mm
⅞
UNF
63 to 77
221.A07
Liquid line
7
10 mm
⅝
UNF
33 to 42
Hot gas line
7
16 mm
⅞
UNF
63 to 77
221.A10
Liquid line
7
10 mm
⅝
UNF
33 to 42
Hot gas line
7
16 mm
⅞
UNF
63 to 77
221.A13
Liquid line
7
10 mm
⅝
UNF
33 to 42
Hot gas line
7
16 mm
⅞
UNF
63 to 77
221.B10
Liquid line
7
10 mm
⅝
UNF
33 to 42
Hot gas line
7
16 mm
⅞
UNF
63 to 77
221.B13
Liquid line
7
10 mm
⅝
UNF
33 to 42
Hot gas line
7
16 mm
⅞
UNF
63 to 77
221.B16
Liquid line
7
10 mm
⅝
UNF
33 to 42
Hot gas line
7
16 mm
⅞
UNF
63 to 77
Connection to the internal unit
Note
We recommend using the pipe bends supplied for con-
necting the refrigerant lines. Depending on the installa-
tion conditions, it may also be possible to connect the
refrigerant lines directly without bends.
!
Please note
Contamination (e.g. metal swarf) or moisture in
the copper pipes of the refrigerant lines will
cause the appliance to malfunction.
Hold the pipe openings downwards or tempora-
rily plug them.
Note
■
The refrigerant lines of the internal unit are charged
with nitrogen; positive pressure 2 bar (0.2 MPa).
■
If Euro flanged adaptors are used, braze the solder
connections using a shielding gas.
Installation sequence
Connecting refrigerant lines
(cont.)
5700 562 GB
Installation
