4
Operation
The compressor in the outdoor unit is operated by
means of regulating the control board in the out-
door unit. The chapter on "Regulation" in the
manual for the outdoor unit must therefore be
observed.
Help save on energy consumption in stand-by
mode! If the device, system or component is
not in use, we recommend disconnecting the
power supply. Components with a safety func-
tion is excluded from our recommendation!
5
Installation instructions for qualified personnel
5.1 Important notes prior to instal-
lation
n
Observe the operating manuals for the indoor
unit and the outdoor unit when installing the
entire system.
n
Transport the unit in its original packaging as
close as possible to the installation location.
You avoid transport damage by doing so.
n
Check the contents of the packaging for com-
pleteness and check the unit for visible trans-
port damage. Report any damage immediately
to your contractual partner and the shipping
company.
n
Lift the unit on the corners and not on the
refrigerant or condensate drainage connec-
tions.
n
The refrigerant piping (liquid and suction pipe),
valves and connections must be insulated to
make them vapour diffusion proof. If necessary
also insulate the condensate drainage line.
n
Select an installation location which allows air
to freely flow through the air inlet and outlet
Chapter 5.5 ‘Minimum clearances’
n
Do not install the unit in the immediate vicinity
of devices which generate intensive thermal
radiation. Installation in the vicinity of thermal
radiation reduces the unit output.
n
Only open the shut-off valves on the refrigerant
piping after installation is complete.
n
Seal off open refrigerant piping with suitable
caps or adhesive strips to prevent the infiltra-
tion of moisture and never kink or compress
the refrigerant piping.
n
Avoid unnecessary bends. This minimises the
pressure loss in the refrigerant piping and
ensures that the compressor oil can flow back
without obstruction.
n
Only use the union nuts supplied with the
refrigerant piping. These should only be
removed shortly before connecting the refrig-
erant piping.
n
Install all electrical wiring in accordance with
applicable DIN and VDE standards.
n
Ensure the electrical cables are properly con-
nected to the terminals. Otherwise there is a
risk of fire.
NOTICE!
Select the installation site such that persons in
the vicinity are not disturbed by the operating
noise generated (see TA noise).
NOTICE!
Different refrigerant pipes are required
depending on the cooling capacity of the out-
door unit and the indoor unit.
21
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