T
H E
P O W E R
F A M I L Y
(C) IDM ENERGIESYSTEME GMBH
Installation instructions Terra CL
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Interior installation
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5.6. Noise
Noise level in the installation room depends on
various factors such as room size, absorption
capacity, refl
ection, free noise propagation, etc.
For this reason, it is important that the heat pump
is situated as far as possible from noise-sensitive
areas. A noise-insulating door should be fi tted.
The night-time reduction in the fan speed means that
noise can be reduced by up to 4 dB. Noise level on
the inlet and exhaust air openings are also reduced
by approx. 4 dB when using air shafts or ducts.
In case of exterior installation, the installation of the
heat pump in a corner can lead to a higher noise level.
Superposition of the sound waves means that noise
level can increase up to 3 dB.
5.7. Installation space
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The TERRA heat pumps should be
installed in a frost-proof room. (Room
temperature should be between 5°C
and 35°C)
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In case of a fl oating fl oor screed the screed and
the sound damping around the heat pump have
to be omitted.
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Heat pumps should not be installed in wet rooms
or in potentially dust or explosion-endangered
rooms.
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Gas from refrigerants in plant rooms must not es-
cape into vicinal rooms, stair rooms, courtyards,
walks or into the drainage system of the building.
The gas has to be channelled off safely.
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In case of danger, the plant room has to be eva-
cuated immediately.
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For powering off the cooling facility, a remote
power-off switch has to be installed nearby the
door of the plant room.
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In case a natural ventilation is not possible, a
mechanical ventilation has to be provided. A
mechanical ventilation has to be equipped with
an independent emergency control outside of the
machine room near the door.
