Sound Data; Sound Pressure Spectrum - Daikin Altherma ERHQ006-008AD Technical Data Manual

7

Sound data

7 - 1 Sound pressure spectrum

ERHQ006AA
HEATING
Octave band center frequency (Hz)
Notes:
1 Data is valid at free field condition (measured in a semi-anachoic room)
2 dBA = A-weighted sound power level (A-scale according to IEC)
3 Reference acoustic pressure 0dB = 20μPa
4 If sound is measured under actual installation conditions, the measured
value will be higher due to environmental noise and sound reflections.
ERHQ006AA
COOLING
Octave band center frequency (Hz)
Notes:
1 Data is valid at free field condition (measured in a semi-anachoic room)
2 dBA = A-weighted sound power level (A-scale according to IEC)
3 Reference acoustic pressure 0dB = 20μPa
4 If sound is measured under actual installation conditions, the measured
value will be higher due to environmental noise and sound reflections.
• Outdoor units • ERHQ006-008AD
Measuring location (discharge side)
Measuring location (discharge side)
TM
• Altherma • Outdoor units
ERHQ007AA
HEATING
Octave band center frequency (Hz)
ERHQ007AA
COOLING
Octave band center frequency (Hz)
ERHQ008AA
HEATING
Octave band center frequency (Hz)
ERHQ008AA
COOLING
Octave band center frequency (Hz)
3TW57557-1A
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