Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 84
Noise Criterion Curves, Ceiling Type T1, 208 - 230 V, 1 Phase, 60 Hz
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1-8. Noise Criterion Curves Ceiling (Type T1) MODEL : S-26PT1U6 SOUND LEVEL : HIGH 40 dB(A), NC 34 LOW 36 dB(A), NC 26 CONDITION : Distance 3.3 ft., Under the unit 3.3 ft. SOURCE 60 : 208 - 230 V, 1 Phase, 60 Hz 1. Specifications MODEL : S-36PT1U6 SOUND LEVEL : HIGH 46 dB(A), NC 39 LOW 37 dB(A), NC 31 CONDITION : Distance 3.3 ft., Under the unit 3.3 ft. SOURCE 60 : 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) 50 NC-50 40 NC-40 1 30 NC-30 APPROXIMATE THRESHOLD OF 20 HEARING FOR CONTINUOUS NOISE NC-20 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz 1221_X_I MODEL : S-42PT1U6 SOUND LEVEL : HIGH 47 dB(A), NC 40 LOW 38 dB(A), NC 32 CONDITION : Distance 3.3 ft., Under the unit 3.3 ft. SOURCE 60 : 208 - 230 V, 1 Phase, 60 Hz 50 NC-50 40 NC-40 30 NC-30 APPROXIMATE THRESHOLD OF 20 HEARING FOR CONTINUOUS NOISE NC-20 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz 2113_X_I OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar) 50 NC-50 40 NC-40 30 NC-30 APPROXIMATE THRESHOLD OF 20 HEARING FOR CONTINUOUS NOISE NC-20 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz 2114_X_I 1-76