Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 85

1-8. Noise Criterion Curves Low Silhouette Ducted (Type F1) MODEL : S-26PF1U6 SOUND LEVEL : HIGH 34 dB(A), NC 22 / LOW 27 dB(A), NC 18 CONDITION : 4.9 ft. directly below unit SOURCE : 208 - 230 V, 1 Phase, 60 Hz 1. Specifications MODEL : S-36PF1U6 SOUND LEVEL : HIGH 38 dB(A), NC 30 / LOW 31 dB(A), NC 21 CONDITION : 4.9 ft. directly below unit SOURCE : 208 - 230 V, 1 Phase, 60 Hz OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar) OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar) 60 60 50 NC-50 50 NC-50 40 NC-40 40 NC-40 30 NC-30 30 NC-30 20 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NC-20 20 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NC-20 1 NOISE 10 63 125 250 500 1000 2000 4000 8000 NOISE 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz 1761_U_I BAND CENTER FREQUENCIES, Hz 1762_U_I 1-77