McQuay MLCV Spécifications télécharger pdf (Page 30)

31

0

10

20

30

40

50

60

70

125 250 500 1000 2000 4000 8000

Octave-band frequency (Hz)

Sound pressure level (dB, re f 20 Pa)

NC-40

NC-35

NC-20

NC-45

NC-50

S- Hi fan

Low f an

Hi g h fan

Mediumfan

NC-30

NC-25

M easu red in anech o ic ro o m at 1 .4m b e low t he centre o f the un it

Tes ted with 2m length du ct at th e air di scharge outlet and a ir return inlet

0

10

20

30

40

50

60

70

125 250 500 1000 2000 4000 8000

Octave-band frequency ( Hz)

Sound pressure level (dB, re f 20 Pa)

NC-40

NC-35

NC-30

NC-20

NC-45

NC-50

S- Hi fan

Low f an

Hi g h fan

NC-25

Medium

M easu red in anech o ic ro o m at 1 .4m be low the centre o f t he un it

Tes ted with 2m length du ct at th e a ir di scha rge o utlet and a ir r eturn inlet

MCC028C/CR NC Curves

MCC030C/CR NC Curves

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