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Air routing
when installing air | water heat
pumps externally, there are generally
no problems associated with
routing the air. However, prevent
the discharge of cold air towards
neighbouring properties (patios,
balconies). Also prevent air being
directed immediately at house or
garage walls. Pay particular attention
to noise pollution. Prior to installation,
consider the sound propagation,
whether towards neighbouring
properties or towards your own home.
never install the heat pump
immediately adjacent to living
rooms or bedrooms. insulate pipes
through walls and ceilings against
structure-borne noise transmission.
the heat pumps are characterised
by their particularly quiet operation.
nevertheless, incorrect installation
can, under unfavourable conditions,
lead to unwanted high noise levels.
observe the following for external
installations:
Plants can reduce reflections that
may occur, for example when
installing the equipment between
two walls.
Avoid installation on large floor
areas off which sound can bounce.
installation between two closed
walls as well as in corners and
corners can lead to higher noise
levels, as these surfaces can act
as sound reflectors and should
therefore be avoided.
reductions in noise levels can
be achieved through on-site
deflectors.
Sound pressure level
at 5 m
distance
at 10 m
distance
wPl 10
43 db(A)
37 db(A)
wPl 13
43 db(A)
37 db(A)
wPl 18
43 db(A)
37 db(A)
wPl 23
43 db(A)
37 db(A)
wPl 33
43 db(A)
37 db(A)
SoUnd EmISSIonS
Acoustic measures
lawn areas and shrubs can contribute
to the reduction of noise. Avoid
installation on hard floor areas.
large floor areas of which sound can
bounce can act as reflectors and can
raise sound levels by up to 3 db(A)
compared with an installation on
insulated floors.
Direct noise propagation when
installing heat pumps outside can be
impeded by on-site deflectors. noise
levels can be reduced by walls, fences,
palisades etc.
A noise reduction of 2 db(A) can be
achieved with the wPl 13/18/23/33 by
using a duct silencer.
Part no. 18 53 25 (wPl 13/18/23)
Part no. 18 53 70 (wPl 33)
As for all heating systems, the transfer
of structure-borne noise through
heating pipes to brickwork and
radiators should be prevented. Heat
pumps should therefore be connected
to the heat distribution system via
flexible hoses, flexible connections of
pipework to walls and ceilings and
flexible routing of pipework through
walls and floors.
Summary of Contents for Heat pumps
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