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Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Planning
5
!
IMPORTANT
The sound propagation can be facilitated or reduced by selecting the installation location. Avoid
setting up on reverberant floor surfaces. Sound propagation can be reduced further by construction
obstacles, but the air flow should not be hindered.
Choice of the blowing direction of the outdoor or mono-bloc unit should preferably be towards the
road, because neighbouring rooms requiring protection rarely face in this direction.
If in doubt, use an acoustician’s services.
5.2.2
Installation of a bi-bloc system
A bi-bloc system consists of an outdoor unit and an indoor unit (hydrokit or All in One unit).
Depending on the power output and model, the outdoor unit has one or two fans and thus their
installed size differs (→
).
In general, the following points should be remembered regarding the distance between outdoor unit
and indoor unit of a bi-bloc system:
● If the length of the refrigerant pipes is greater than the pre-filled pipe length of the
device (10 m), the quantity of additional refrigerant stated in the technical data must
4.6.2.3 Technical Data (bi-bloc systems), p. 40
).
●
The maximum length of the refrigerant pipes between indoor and outdoor unit is 25,
30 or 50 m, depending on the model (→
4.6.2.3 Technical Data (bi-bloc systems),
). This value must not be exceeded.
●
The minimum length of the refrigerant pipes between indoor and outdoor unit is 3 m
and must not fall below that value.
● The maximum elevation difference between indoor and outdoor unit is 20 or 30 m,
depending on the model (→
4.6.2.3 Technical Data (bi-bloc systems), p. 40
value must not be exceeded.
● The wall thickness of the copper tubes for the refrigerant pipes must be larger than
0.8 mm.
