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VAV-PRC011M-EN 29

Single-Duct VAV Terminal Units

Table 13. Heating capacity (MBh) - inlet size 16 (I-P)

Water

Pressure

Drop (ft)

Airflow (cfm)

Rows gpm 600 1000 1400 1800 2200 2600 3000 3400 3800 4000

1-Row

Capacity

MBH

2.0 1.25 32.86 40.56 46.53 51.24 55.14 58.43 61.26 63.73 65.91 66.90

3.0 2.59 35.44 44.58 51.72 57.88 63.13 67.69 71.71 75.30 78.52 80.01

4.0 4.37 36.88 46.94 54.96 61.77 67.89 73.31 78.17 82.55 86.54 88.40

5.0 6.56 37.79 48.47 57.10 64.53 71.08 77.08 82.54 87.51 92.07 94.22

6.0 9.15 38.43 49.55 58.62 66.50 73.50 79.83 85.69 91.11 96.12 98.48

7.0 12.13 38.90 50.34 59.76 67.98 75.33 82.01 88.14 93.85 99.20 101.74

8.0 15.50 39.26 50.96 60.64 69.13 76.76 83.73 90.13 96.07 101.63 104.31

2-Row

Capacity

MBH

5.0 1.08 54.27 73.74 87.13 96.97 104.54 110.57 115.52 119.66 123.18 124.76

7.0 2.04 56.31 78.10 93.71 105.54 114.88 122.47 128.80 134.16 138.78 140.87

9.0 3.29 57.49 80.68 97.71 110.87 121.41 130.09 137.39 143.64 149.07 151.53

11.0 4.82 58.26 82.39 100.40 114.50 125.90 135.38 143.41 150.32 156.36 159.10

13.0 6.64 58.80 83.61 102.34 117.13 129.19 139.27 147.86 155.28 161.80 164.76

15.0 8.73 59.20 84.53 103.81 119.14 131.70 142.26 151.29 159.12 166.01 169.16

17.0 11.10 59.51 85.24 104.96 120.71 133.69 144.62 154.01 162.18 169.38 172.67

19.0 13.75 59.76 85.82 105.88 121.99 135.30 146.55 156.23 164.67 172.13 175.55

21.0 16.67 59.96 86.29 106.65 123.04 136.63 148.14 158.07 166.75 174.43 177.95

23.0 19.86 60.13 86.68 107.28 123.92 137.75 149.49 159.63 168.51 176.37 179.98

3-Row

Capacity

MBH

5.0 1.33 61.29 85.48 102.45 115.01 124.69 132.40 138.70 143.95 148.40 150.39

7.0 2.48 63.23 90.09 109.84 125.00 137.04 146.85 155.04 161.98 167.96 170.65

9.0 3.98 64.32 92.75 114.23 131.08 144.70 155.97 165.49 173.65 180.74 183.95

11.0 5.80 65.01 94.49 117.14 135.17 149.91 162.24 172.73 181.80 189.73 193.33

13.0 7.95 65.50 95.71 119.21 138.10 153.68 166.80 178.04 187.80 196.38 200.30

15.0 10.42 65.85 96.62 120.76 140.31 156.53 170.28 182.10 192.42 201.51 205.68

19.0 16.32 66.35 97.88 122.93 143.42 160.58 175.22 187.91 199.04 208.91 213.44

21.0 19.73 66.52 98.33 123.71 144.55 162.06 177.05 190.06 201.50 211.66 216.33

23.0 23.46 66.67 98.71 124.37 145.51 163.31 178.58 191.87 203.57 213.98 218.78

4-Row

Capacity

MBH

5.0 1.58 68.18 97.68 118.67 134.16 146.01 155.34 162.90 169.14 174.39 176.72

7.0 2.93 69.98 102.65 127.23 146.24 161.34 173.61 183.79 192.38 199.73 203.02

9.0 4.67 70.95 105.42 132.20 153.46 170.73 185.04 197.09 207.41 216.34 220.38

11.0 6.79 71.56 107.19 135.42 158.23 177.03 192.81 206.25 217.86 228.00 232.60

13.0 9.27 71.98 108.41 137.68 161.62 181.55 198.43 212.93 225.53 236.60 241.66

15.0 12.12 72.28 109.31 139.35 164.14 184.95 202.68 218.00 231.39 243.21 248.62

17.0 15.33 72.53 110.00 140.64 166.09 187.59 206.01 221.99 236.02 248.45 254.15

19.0 18.89 72.69 110.54 141.66 167.65 189.70 208.68 225.21 239.76 252.70 258.64

21.0 22.80 72.84 110.98 142.50 168.93 191.44 210.88 227.86 242.86 256.21 262.36

23.0 27.07 73.01 111.35 143.19 169.99 192.89 212.71 230.08 245.45 259.17 265.50

Notes:

1. Fouling Factor = 0.00025 °F·ft²·h/Btu

2. Capacity based on 55°F entering air temperature and 180°F entering water temperature.

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 157 158

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