13
■
With flat roof installation, considerable wind loads
may occur, depending on the relevant wind zone and
the height of the building. Have the substructure
designed according to DIN 1991-1-4 by a specialist
design engineer.
■
The higher roof and wind loads must be taken into
account in the structural calculations and the fixture
system of the outdoor unit.
It is essential to comply with the specifications provi-
ded by the design engineer with regard to structural
calculations, distances from building edges and the
sound concept.
Pitched roof installation
Recommendation: Floorstanding, wall or flat roof
installation
If the outdoor unit is nevertheless installed on a
pitched roof, the same requirements apply as for flat
roof installation.
Siting
■
In accordance with EN 378-3, the outdoor unit may
only be installed in the open air.
■
Observe the information regarding noise levels.
Sound emission regulations (TA Lärm in Germany)
must be observed.
■
When siting the heat pump on the property, always
take into account the distances to neighbouring prop-
erties in accordance with local building regulations.
■
Do not install with the discharge side facing towards
the house wall or against the main wind direction.
■
During defrosting, cool vapour escapes from the air
discharge vents of the outdoor unit. This vapour dis-
charge must be taken into consideration during
installation (choosing the installation location, orien-
tation of the outdoor unit).
■
Provide wall outlets and protective conduits for refrig-
erant lines and electrical connecting cables without
moulded parts or changes of direction.
■
Provide equipment to protect the outdoor unit from
mechanical damage, e.g. impact damage from foot-
balls.
■
Take environmental and weather influences into
account when selecting 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 is essential to establish for the
case in question whether the installation is permissi-
ble under local garage and parking area regulations
(German regulations GaStellV, GaStplVO, BetrVO).
■
If required, provide impact protection to protect the
outdoor unit from damage. This impact protection
must be designed such that a strike by a vehicle at
the applicable maximum speed does not result in
damage to the refrigerant circuit.
■
Siting in underground car parks is not permissible.
Installation 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.
■
Incorporate the outdoor unit into the lightning protec-
tion system.
■
Consider 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 electric ribbon
heater for the condensate pan of the outdoor unit.
Floorstanding and wall installation:
■
Ensure that condensate can drain freely.
■
Allow condensate to soak away into a permanent
gravel bed under the outdoor unit.
Roof installation:
■
Allowing the condensate to drain freely onto the roof
surface is not permissible, as this may result in the
formation of layers of ice. Layers of ice on the roof
may prevent further condensate from draining freely,
resulting in increased roof loads.
■
Use an electric ribbon heater for the condensate
pipe.
■
To drain the condensate, connect the condensate
hose on the outdoor unit to an insulated condensate
pipe. The condensate pipe is part of the standard
delivery of the electric ribbon heater for the conden-
sate pipe.
If necessary, insert the condensate hose via a trap
insert.
Installation sequence
Installing the outdoor unit (cont.)
6199585
Installation
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