25
Insulation against noise and vibrations for line entry above ground level
D
B
C
A
Fig. 22
A
Pipe bends for vibration compensation
B
Pipe clips with EPDM lining
C
Line entry, e.g. KG conduit with thermal insulation
D
Indoor/outdoor unit bus cable and outdoor unit
power cable
Observe the following during installation:
■
Wall outlet:
–
No wall outlet where load bearing sections, lintels,
damp proofing elements (e.g. vapour barriers), etc.
are located.
–
No structure-borne noise transmission, i.e. avoid
contact between metal (refrigerant line) and the
building structure.
■
Routing the cables and lines:
–
Route cables and refrigerant lines separately.
–
Route the refrigerant lines with pipe bends. This
reduces the transmission of vibrations to the pipe
wall.
–
Mount pipe clips with soft elastic lining (EPDM)
directly downstream of the pipe bends.
■
Securing the lines:
–
Secure the lines using only pipe clips with soft
elastic insulating lining (EPDM).
–
Only mount pipe clips on components with a mass
per unit area
≥
250 kg/m
2
.
–
Do not install the lines on partition walls or ceilings
to rooms that require a low noise level (e.g. bed-
rooms).
■
Insulate all lines.
Installation sequence
Connecting the refrigerant lines
(cont.)
51
17 700 GB
Installation
