INSTALLATION | Preparing to install the appliance
982000-AIR-M2-M4-EN03.1 | www.ochsner.com 17
11_06_200_202_006
2
3
4
1
1 Flat roof
2 Refrigerant lines in open air (enclosed in thermal in-
sulation with UV protection)
3
2x concrete slabs attached with flexible adhesive (per
leg of the outdoor unit). The outdoor unit is affixed to
the concrete slabs
4 Anti-vibration mounts
When installing the outdoor unit on a freestanding car port,
a garage roof or a storage space roof, please note the
following:
»
Ensure that the outdoor unit is adequately secured,
paying regard to the wind load occurring at the instal-
lation location.
»
Take account of the concentrated load arising from
the dead weight of the outdoor unit (including the
roof fixings) and the surface load caused by possible
build-up of ice.
»
Ensure suitable structure-borne sound separation be-
tween the outdoor unit and the installation points on
the roof.
9.4 Preparing the refrigerant lines
i
Information
If the appliance, the refrigerant lines, the pipe fix
-
ings and the wall outlets are not installed correctly,
structure-borne sounds can be transmitted to the
building.
»
Ensure that the refrigerant lines are in-
stalled in a way that ensures insulation from
structure-borne noise. The system installer
carrying out the work is responsible for this.
Material damage
Use only copper pipes suitable for refrigerant
(DIN 12735-1). Thin-walled pipes run the risk of
bursting.
»
Please observe the stipulated diameters and
wall thicknesses of the copper pipes.
Material damage
Incorrect or premature opening of the pipe connec-
tions and cutting of the refrigerant lines can allow
dirt and moisture to enter the refrigerant circuit.
»
Do not open the connections on the indoor
or outdoor units until just before installing the
refrigerant lines.
»
Cut the refrigerant lines with a suitable pipe
cutter.
»
Prevent swarf from contaminating the pipe
connections and refrigerant lines.
»
Once cut, fill the refrigerant lines with a sub
-
stance such as nitrogen.
»
Keep the refrigerant lines closed until just be-
fore installation.
Pipe connections for the refrigerant lines (suction gas and
liquid lines) are supplied soldered closed, both for the in-
door unit and the outdoor unit. Appropriate copper pipes
for refrigerant lines are supplied sealed at both ends and
filled with nitrogen.
Please note the following with regard to routing of the re-
frigerant lines:
»
Keep to a minimum the distance between the indoor
and outdoor units, in order to minimise heat loss from
the refrigerant lines.
»
Select the installation sites for the indoor and outdoor
units such that the maximum permissible line lengths
and height differentials are not exceeded.
»
Avoid routing the lines in the vicinity of bedrooms.
The refrigerant in the lines can generate noise under
certain operational conditions.
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