McQuay MCW1000D, Technical Manual

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6
Sound Pressure Level
NOTES:
1. MICROPHONE POSITION: 1M IN FRONT OF THE UNIT AND 1M BELOW THE VERTICAL CENTER LINE OF THE UNIT.
2. THE SOUND LEVEL IS TESTED UNDER 11.5DBA BACKGROUND NOISE IN A BAFFLE CHAMBER WITH ESP OF 50 PA
AND 75PA.
3. THE NOMINAL AIR FLOW, POWER INPUT AND CAPACITY TEST IS UNDER THE POWER SUPPLY OF 220V/1PH/50HZ.
ESP 50Pa 75Pa
UNIT SPEED
1/1 Octave Sound pressure level(dBA, ref 20μPa)
Overall
dB(A)
1/1 Octave Sound pressure level(dBA, ref 20μPa)
Overall
dB(A)
63 125 250 500 1k 2k 4k 8k 63 125 250 500 1k 2k 4k 8k
200D
HIGH 18 27 37 39 39 33 24 15 43.4 22 28 37 39 38 33 26 17 43.5
MEDIUM 18 27 35 37 38 32 22 14 42.3 19 30 37 38 38 32 25 16 42.9
LOW 16 24 32 35 34 28 17 12 38.9 16 24 34 35 34 27 19 12 39.6
300D
HIGH 16 29 36 38 38 34 24 15 43.3 18 30 36 38 39 37 33 24 44.1
MEDIUM 16 27 35 37 37 33 23 15 42.1 17 29 35 37 38 36 31 22 43.1
LOW 15 25 32 34 33 29 19 13 38.7 16 28 33 35 36 33 26 17 40.8
400D
HIGH 19 31 40 42 41 38 28 18 46.5 19 32 39 41 41 38 32 25 46.2
MEDIUM 18 31 40 41 40 37 27 17 45.9 19 32 39 41 40 37 29 20 45.9
LOW 17 30 37 39 38 34 23 15 43.4 18 30 37 39 38 35 25 17 43.8
500D
HIGH 21 31 41 42 41 38 29 20 46.9 21 30 40 41 41 38 32 24 46.6
MEDIUM 21 31 40 42 41 38 28 19 46.5 21 31 40 41 40 38 31 23 46.2
LOW 18 29 38 40 39 35 25 16 44.4 20 30 38 40 38 36 28 19 44.6
600D
HIGH 22 31 41 42 43 40 30 20 48.0 24 32 42 42 43 40 32 23 48.3
MEDIUM 22 31 41 42 43 40 30 19 47.6 24 32 42 42 42 39 31 22 47.9
LOW 19 30 38 39 40 37 26 15 44.7 23 31 40 41 41 37 28 19 46.2
800D
HIGH 24 34 43 47 45 41 31 24 50.5 24 35 43 47 44 41 33 27 50.4
MEDIUM 23 33 43 46 44 40 31 24 50.1 23 35 43 46 44 41 33 26 50.0
LOW 22 32 41 45 43 39 29 21 48.6 23 34 42 45 43 39 31 24 49.1
900D
HIGH 22 35 43 44 43 40 31 21 49.0 23 36 44 44 43 40 31 20 49.2
MEDIUM 22 35 42 44 43 40 30 20 48.6 23 35 43 44 43 40 31 20 48.8
LOW 21 33 40 42 41 38 28 17 46.7 22 35 42 42 41 38 29 18 47.4
1000D
HIGH 24 36 43 43 45 39 31 21 49.2 25 35 43 43 45 40 31 21 49.4
MEDIUM 24 36 43 43 44 39 31 21 49.0 23 36 43 43 44 39 31 20 49.1
LOW 22 35 41 42 42 36 28 18 47.1 23 34 41 42 43 37 29 18 47.4
1200D
HIGH 28 35 45 48 51 44 37 29 53.9 29 35 46 48 51 45 37 30 54.0
MEDIUM 26 34 44 47 50 43 36 28 53.2 26 34 45 47 50 44 36 29 53.3
LOW 23 31 40 44 46 39 30 22 49.5 27 31 41 45 47 39 31 22 49.9
1400D
HIGH 27 38 45 47 50 45 41 36 53.7 27 39 45 47 50 45 41 36 53.6
MEDIUM 26 38 44 46 50 44 40 35 53.1 27 38 45 46 49 44 40 35 53.0
LOW 23 34 41 43 46 41 36 29 49.6 24 36 41 44 47 41 37 30 50.3