27
Torque for refrigerant lines
Type AWBT(-M)/
AWBT(-M)-E-AC
Line
Connection to the
outdoor unit
Torque in Nm
221.C04
221.C06
Liquid line
7
6 mm
⁷
⁄
₁₆
UNF
14 to 18
Hot gas line
7
12 mm
¾
UNF
50 to 62
221.C08
221.C10
221.C13
221.C16
Liquid line
7
10 mm
⅝
UNF
33 to 42
Hot gas line
7
16 mm
⅞
UNF
63 to 77
Connection to the indoor unit
C
D
C
D
D
C
2x
1.
2.
3.
Fig. 24
C
Liquid line
D
Hot gas line
Note
The refrigerant lines of the indoor unit are filled with
nitrogen; positive pressure 1 to 2 bar (0.1 to 0.2 MPa).
1.
Undo the nuts from connections
C
(liquid line) and
D
(hot gas line) of the refrigerant lines.
Types 221.C04 and 221.C06:
Replace nuts with union nuts supplied (indoor unit):
■
⅝
UNF for liquid line
■
⅞
UNF for hot gas line
Connect supplied reducer with copper seal ring.
Types 221.C08 to 221.C16:
Slide the nuts onto the relevant refrigerant lines
from the outdoor unit.
!
Please note
Contamination (e.g. metal swarf) or moisture
in the refrigerant lines will cause the appli-
ance to malfunction.
Point the pipe openings downwards or tem-
porarily plug them.
Installation sequence
Connecting the refrigerant lines
(cont.)
51
17 700 GB
Installation
