Data Sheet for Product

Page 14 of 19 Siemens Industry, Inc.
Table 3. Hot Water Reheat Coil Capacities.*
UNIT SIZE 12 UNIT SIZE 12
1-Row Coil 2-Row Coil
GPM
Airflow, CFM
Waterside
GPM
Airflow, CFM
Waterside
Head Head
400 600 800 1200 1600 2000 2500 Loss 400 600 800 1200 1600 2000 2500 Loss
Heating Capacity (MBH) (ft.wg.) Heating Capacity (MBH) (ft.wg.)
2.0 17.9 21.5 24.1 27.9 30.7 32.8 34.8 0.55 2.0 28.1 34.8 39.8 46.9 51.9 55.5 59.1 0.45
3.0 18.8 22.9 25.9 30.5 33.8 36.3 38.9 1.21 3.0 29.9 37.7 43.8 52.7 59.1 64.0 68.8 0.99
4.0 19.4 23.7 27.0 31.9 35.6 38.5 41.4 2.11 4.0 30.9 39.4 46.0 56.1 63.4 69.2 75.0 1.74
5.0 19.7 24.2 27.7 32.9 36.8 39.9 43.0 3.24 5.0 31.5 40.5 47.5 58.3 66.4 72.8 79.2 2.68
6.0 20.0 24.6 28.1 33.6 37.6 40.9 44.2 4.61 6.0 32.0 41.2 48.6 59.9 68.5 75.4 82.3 3.83
7.0 20.1 24.8 28.5 34.1 38.3 41.7 45.1 6.22 7.0 32.3 41.8 49.4 61.1 70.1 77.3 84.7 5.17
9.0 20.4 25.2 29.0 34.8 39.2 42.8 46.4 10.11 9.0 32.8 42.5 50.4 62.9 72.4 80.1 88.1 8.45
10.0 20.4 25.3 29.1 35.0 39.4 43.0 46.7 11.22 10.0 32.9 42.8 50.8 63.5 73.2 81.2 89.3 10.37
Air Side Pressure Drop (Inches WC) Air Side Pressure Drop (Inches WC)
0.02 0.04 0.07 0.15 0.24 0.36 0.52 0.05 0.10 0.16 0.32 0.51 0.74 1.08
UNIT SIZE 12 UNIT SIZE 12
3-Row Coil 4-Row Coil
GPM
Airflow, CFM
Waterside
GPM
Airflow, CFM
Waterside
Head Head
400 600 800 1200 1600 2000 2500 Loss 400 600 800 1200 1600 2000 2500 Loss
Heating Capacity (MBH) (ft.wg.) Heating Capacity (MBH) (ft.wg.)
1.5 33.1 40.4 45.5 52.0 56.1 58.9 61.5 0.37 2.0 39.3 49.5 56.7 66.3 72.3 76.5 80.3 0.40
3.0 37.3 47.9 55.9 67.3 75.3 81.2 86.9 1.40 4.0 43.0 56.9 67.7 83.7 95.0 103.5 111.6 1.55
4.0 38.5 50.0 59.0 72.4 82.0 89.3 96.5 2.44 5.0 43.8 58.5 70.2 88.0 101.0 110.9 120.6 2.40
5.0 39.2 51.4 61.1 75.7 86.5 94.9 103.2 3.76 6.0 44.3 59.6 72.0 91.1 105.3 116.4 127.3 3.42
6.0 39.7 52.3 62.5 78.1 89.8 99.0 108.1 5.34 8.0 45.0 61.0 74.3 95.2 111.2 123.9 136.7 5.96
7.0 40.0 53.0 63.5 79.9 92.2 102.1 111.9 7.22 9.0 45.2 61.5 75.1 96.6 113.2 126.6 140.1 7.51
9.0 40.5 54.0 65.0 82.4 95.7 106.5 117.4 11.73 10.0 45.4 61.9 75.7 97.8 114.9 128.8 142.9 9.22
10.0 40.7 54.3 65.5 83.3 97.0 108.1 119.5 14.42 12.0 45.6 62.5 76.7 99.6 117.6 132.3 147.3 13.16
Air Side Pressure Drop (Inches WC) Air Side Pressure Drop (Inches WC)
0.08 0.15 0.24 0.47 0.77 1.11 1.62 0.10 0.20 0.32 0.63 1.02 1.49 2.16
UNIT SIZE 14 UNIT SIZE 14
1-Row Coil 2-Row Coil
GPM
Airflow, CFM
Waterside
GPM
Airflow, CFM
Waterside
Head Head
500 800 1200 1700 2200 2700 3400 Loss 500 800 1200 1700 2200 2700 3400 Loss
Heating Capacity (MBH) (ft.wg.) Heating Capacity (MBH) (ft.wg.)
1.0 20.0 23.8 26.9 29.5 31.2 32.5 33.9 0.20 1.5 32.3 40.0 46.4 51.5 55.0 57.5 60.1 0.33
2.0 23.4 28.9 33.8 38.1 41.2 43.6 46.3 0.76 3.0 37.6 48.8 59.1 68.1 74.7 79.8 85.2 1.27
3.0 24.8 31.1 36.9 42.2 46.1 49.2 52.7 1.65 4.0 39.1 51.6 63.4 74.0 81.9 88.2 95.0 2.21
4.0 25.6 32.4 38.8 44.6 49.0 52.6 56.6 2.87 5.0 40.2 53.4 66.3 78.0 87.0 94.1 102.0 3.41
5.0 26.1 33.2 40.0 46.2 51.0 54.8 59.2 4.41 6.0 40.9 54.7 68.3 81.0 90.7 98.5 107.2 4.85
6.0 26.4 33.7 40.8 47.3 52.4 56.5 61.2 6.26 7.0 41.4 55.7 69.9 83.2 93.5 101.8 111.3 6.55
8.0 26.9 34.5 41.9 48.9 54.3 58.7 63.8 10.92 9.0 42.1 57.0 72.1 86.4 97.6 106.8 117.3 10.65
10.0 27.2 35.0 42.6 49.8 55.5 60.1 65.5 16.80 10.0 42.4 57.5 72.9 87.6 99.1 108.6 119.5 13.09
Air Side Pressure Drop (Inches WC) Air Side Pressure Drop (Inches WC)
0.02 0.04 0.08 0.14 0.22 0.31 0.46 0.04 0.09 0.17 0.30 0.46 0.65 0.96
* Notes:
All capacities are based on 180°F entering water temperature and 55°F entering air temperature. For other air and water inlet
temperature conditions, use the correction factors shown in Table 4 to multiply the given heating capacity for each size.
1 MBH = 1000 BTU/Hr. MBH Required = 0.00108 × CFM × Temp. Rise