28
Siting
■
In accordance with EN 378-3, the outdoor unit may
only be installed in the open air.
■
The refrigerant circuit in the outdoor unit contains
easily flammable refrigerant belonging to safety
group A3 according to ANSI/ASHRAE Standard 34.
Therefore a safety zone is defined in the immediate
vicinity of the outdoor unit, in which special require-
ments apply: See chapter "Safety zone".
■
Observe the information regarding noise levels.
Sound emission regulations (TA Lärm in Germany)
must be observed.
■
When siting the heat pump, always take into account
the distances to neighbouring properties in accord-
ance with local building regulations.
■
Do not install with the discharge side facing towards
the house wall or the main wind direction.
■
During defrosting, cool vapour escapes from the out-
door unit air discharge vents. This vapour discharge
must be taken into consideration during installation
(choosing the installation location, orientation of the
heat pump).
■
Provide wall outlets and protective conduits for the
hydraulic connection lines and electrical connecting
cables without moulded parts or changes of direc-
tion.
Building entry points, whether below or above
ground level, must be sealed in accordance with cur-
rent engineering standards. Safety zone require-
ments must be observed in all cases.
■
Provide equipment for the protection of the outdoor
unit against mechanical damage e.g. Impact damage
from footballs.
■
Take environmental and weather influences into
account in the selection of the installation location,
e.g. flooding, wind, snow, ice damage, etc. Install
suitable protection equipment if required.
Siting in garages, multi-storey car parks and car
parking areas:
■
Prior to installation, it must be established for the
case in question whether the installation is permissi-
ble under local garage and parking area regulations
(German regulations GaStellV, GaStplVO, BetrVO).
■
Systems with refrigerants belonging to safety
group A3 must be fitted with impact protection. This
impact protection must be designed so that a strike
by a vehicle at the applicable maximum speed does
not result in damage to the refrigerant circuit.
■
Mark the outdoor unit safety zone with prohibition
notices to identify ignition sources.
■
Siting in underground car parks is not permissible.
Siting in coastal areas: Distance < 1000 m
■
In coastal areas salt and sand particles in the air
increase the likelihood of corrosion:
Site the heat pump where it is protected from direct
onshore wind.
■
If necessary provide a wind break on site. Observe
the minimum clearances to the heat pump: See
chapter "Minimum clearances".
Weather influences
■
Observe wind loads when installing the unit on sites
exposed to the wind.
■
Fit the pipework exposed to the outdoor air outside
the support for floorstanding installation (accesso-
ries) with adequately thick thermal insulation in
accordance with the German Buildings Energy Act
(GEG): See the following table.
Pipework inter-
nal
7
Min. thickness of thermal insu-
lation layer with
λ = 0.035 W/(m·K)
≤ 22 mm 40 mm
> 22 mm 60 mm
λ Thermal conductivity
■
The thermal insulation must be UV-resistant.
■
If a design casing for the support for floorstanding
installation (accessories) is used:
For pipework inside the support, use the thermal
insulation supplied.
■
Incorporate the outdoor unit into the lightning protec-
tion system.
■
Note the heat absorbed (heating mode) and heat
emitted (cooling mode) by the appliance when
designing weatherproofing measures or an enclo-
sure.
Condensate
In regions where the outside temperature is often
below 0 °C, we recommend installing an electrical rib-
bon heater (accessories) for the condensate pan of the
outdoor unit. For types ...-AF an electric ribbon heater
is factory-fitted.
Siting the outdoor unit
Installation information (cont.)
6222080
Installation
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