AM, EM, AQ, BA, ASW - IOM
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Ing.Ji
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í Jiránek
1.3.2 Mechanical installation
The inner unit of the Heat Pump should be located in a detached room – a machinery room.
In the case the room is next to protected areas (bedroom, children rooms etc.), the wall
between must be made as sound-proof, minimum sound reduction of 30dBA. It is also not
recommended to install fixtures of piping system or circulating pumps etc. on the dividing wall.
Make sure to always check the noise values of heat pumps in the catalogue sheets and verify
the installation area for acoustically protected areas.
Always check the load capacity compared with the unit weight. If necessary, build a concrete
base. Do not position the units on light structures as floor heating etc.
Do not position the Heat Pumps in higher floors of the building, we recommend installation in
the lowest floor – on solid ground. Installation in higher floors can cause transfer of vibrations to
the heated building.
The units have adjustable legs which allow for balancing of minor uneveness and inclination (up
to 20 mm) of the floor.
1.3.3 Minimum Inner Volume of the Machinery Room
Each area for installation has to be inspected with regard to the refrigerent charge of the Heat
Pump. Permitted limit is 0,3kg refrigerant/m3 of the room volume. This is important due to safety
in the case of refrigerant leakage. For approximate minimum room volumes for MasterTherm
heat pumps see table below:
Heat Pump
-
AQ17-30 AQ37-45 AQ60-90 AM, EM
LM
AQxxD
Refrigerant Charge
kg
1.8
2.2
3.0
5.7
4.5
12
Min. Room Volume
m3
6.0
7.3
10.0
19.0
15.0
40.0
In the case the room volume does not reach the values from the table, please see EN378. In
most cases the room must be ventilated and a special equipment operating guideline
established. Problems usually occur with DirectMaster units which have big volume of
refrigerant.
