Ultima Compact™
Chillers
20 Ultima Compact 30-150kW Technical Manual 9690553 V1.2.0_10_2019
Design Features and Information
Sound Data
Measurement of Sound Data
All sound data quoted has been measured in the third-octave band limited values, using a Real Time Analyser calibrated
sound pressure meter in accordance with BS EN ISO9614:2009.
The Global sound data quoted is valid for noise
emitted in the horizontal plane in all directions.
All Sound Power Levels quoted are calculated from measured sound presure according to BS EN ISO9614:2009.
Sound Pressure Levels are calculated from sound power using the expanded parallelpiped method according to BS EN
ISO9614:2009.
Resultant performance figures obtained from test will be proven to not differ from the claimed figures by more than the
allowable deviations specified in table 7 of section VII of Eurovent RS 6/C/003-2016 (A-weighted sound power; +3dBA).
Sound Directivity
The global sound measurements quoted in the following tables
do not
incorporate any directivity or denote any sound
level heard at any given position surrounding the chiller, rather they represent the total sound level radiating from the
chiller in
all directions in the horizontal plane
from source.
Using the adjustment factors from the map below, specific directional sound power levels can be derived from the global
sound power data.
-11
-11
-4.0
-4.0
71 dB(A)
71 dB(A)
78 dB(A)
78 dB(A)
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