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VAV-PRC011M-EN 49

Single-Duct VAV Terminal Units

Table 33. Sound noise criteria (NC)

Discharge

1,2,4

Radiated

1,2,4

Inlet

Size (in)

Inlet Pressure (Ps)

3,5

Inlet Pressure (Ps)

3,5

CFM l/s 0.5” 1.0” 1.5” 2.0” 3.0” 0.5” 1.0” 1.5” 2.0” 3.0”

80 38 21 25 31 34 -- 16 27 35

120 57 25 30 34 38 -- 19 28 35

150 71 25 32 35 38 38 -- 20 24 30 36

225 106 32 38 44 45 18 23 32 38

130 61 -- 21 28 33 -- -- 24 33

200 94 19 25 32 34 -- 16 26 33

250 118 21 28 31 34 37 -- 19 23 27 35

350 165 24 33 38 40 18 21 30 35

200 94 -- 21 29 34 -- 16 26 34

200 142 18 23 31 35 15 20 27 35

400 189 18 26 31 33 37 18 22 25 30 35

500 236 23 28 35 39 21 25 32 36

350 165 -- 23 31 37 -- 16 27 39

520 245 17 25 34 37 -- 21 28 38

700 330 18 26 31 34 38 18 24 27 32 37

900 425 21 27 36 39 24 27 32 37

550 260 -- 19 26 30 15 22 27 34

820 387 -- 22 29 33 16 23 30 35

1100 519 17 25 29 31 35 20 25 28 32 36

1400 661 21 27 33 37 25 30 34 38

800 378 -- 17 27 29 -- 20 27 34

1200 566 -- 21 29 34 16 23 31 35

1600 755 15 23 29 32 36 22 27 32 34 37

2000 944 19 27 34 36 27 32 39 42

1100 519 -- 18 31 32 -- 21 31 35

1600 755 -- 19 30 36 17 23 33 38

2100 991 17 24 28 31 33 20 26 31 34 38

3000 1416 24 30 37 38 28 34 39 40

1400 661 -- 18 31 36 -- 23 32 37

2100 991 -- 20 30 36 17 23 31 37

2800 1321 18 24 27 31 33 23 25 30 32 36

4000 1888 26 30 36 37 30 33 37 37

24 x 16

2700 1274 26 31 35 38 33 36 41 45

4000 1888 30 35 40 43 38 43 47 50

5300 2501 30 37 40 44 46 37 47 49 50 52

6000 2832 30 37 44 47 37 47 51 53

7500 3540 30 37 45 49 38 46 55 56

8000 3776 30 37 45 49 38 46 56 57

Notes:

1. "--" represents NC levels below NC 15.

2. NC Values are calculated using modeling assumptions based on AHRI 885-2008-02 Addendum.

3. Data at 1.5" inlet pressure constitute AHRI 880-2011 Standard Rating Conditions

Where Ps is the inlet static pressure minus discharge static.

5. Data at 0.5", 1.0", 2.0"& 3.0" are application ratings, these ratings are outside the scope of the certification program.

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 157 158

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