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

7

Sound data

7 - 1 Sound pressure spectrum

2
7
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.
ERHQ011AAW1*
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.
64
• Outdoor units • ERHQ011-016AAW1
ERHQ011AAW1*
HEATING
Octave band center frequency (Hz)
COOLING
Octave band center frequency (Hz)
TM
• Altherma • Outdoor units
ERHQ014AAW1*
HEATING
Octave band center frequency (Hz)
Measuring location (discharge side)
ERHQ014AAW1*
COOLING
Octave band center frequency (Hz)
Measuring location (discharge side)
ERHQ016AAW1*
HEATING
Octave band center frequency (Hz)
3TW57919-2
ERHQ016AAW1*
COOLING
Octave band center frequency (Hz)
3TW57919-1