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Table 1 Heating and Cooling Performance for Selected Coils
At 500 FPM (2.54 m/s) and 10 FPI.
See notes for coil descriptions and rating conditions.
Notes
Note 1 - Air volume in CFM and cubic meters per hour for air speed of 500 fpm or 2.54 meter per second
through a large face area 1/2" tube diameter (Type A) coil for each air handler model.
See pages 42 & 43 for range of air volumes for each model.
Note 2 - Face area of large size 1/2" diameter tube coil for each air handler in square feet and square meters.
5/8" & 1" diameter tube coils have slightly smaller face areas. See page 42 & 43 for other coils.
Note 3 - Direct expansion halocarbon air conditioning in thousands of BTUH and kilowatts. Performance is for a
1/2" tube, 4 row, 10 FPI coil with 40°F. (4.4ºC.) evaporating temperature and entering air
temperatures at 80°F. (26.7ºC.) dry bulb and 67°F. (19.4ºC.) wet bulb. See pages 14, 15, and 21 for
other coils and conditions.
Note 4 - Halocarbon refrigerant gas heat reclaim (thousands of BTUH and kilowatts). Performance is for a 1/2"
tube, 3 row, 10FPI coil with a 50°F. TD (or 27.7 degrees centigrade of temperature difference)
between entering air and condensing temperature. See page 20 for other coils and conditions.
Note 5 - Chilled water air conditioning in thousands of BTUH or kilowatts. Performance is for a 5/8" tube, 6
row, 10FPI coil with 44°F. (6.7ºC.) entering water temperature. Entering air temperatures are 80°F.
(26.7ºC.) dry bulb and 67°F. (19.4ºC.) wet bulb. The fluid pressure drop is less than 25 feet (0.76
kilogram per square centimeter) and the water velocity is less than 6 fps (1.83 meters per second).
See pages 16,17,and 22 for other coils and conditions.
Note 6 - Hot water heating performance in thousands of BTUH or kilowatts. Performance is for a 5/8" tube, 2
row, 10 FPI coil with 200°F. (93.3ºC.) entering water temperature. The entering air temperature is 0°F.
(-18°C.). The fluid pressure drop is less than 25 feet (0.76 kilogram per square centimeter) and the water
velocity is less than 6 fps (1.83 meters per second). See pages 18, 19, and 23 for more coils.
Note 7 - Steam heating performance in thousands of BTUH or kilowatts. The coils are 5/8" tube, 1 row, and 10
FPI (coils for models 65 and 75 are 1" diameter tubes). The entering air temperature is 60°F. (15.6ºC.)
and the steam pressure is 5 psig (1.38 kilogram per square centimeter). See pages 18, 19, and 23 for
other coils and conditions.
Air Handler Performance - Quick Reference
Note 1 Note 2 Note 3 Note 4 Note 5 Note 6 Note 7
air volume at air handler DX air Refrigerant Chilled water Hot water Steam
Unit 500 fpm 2.54 m/s face area conditioning Heat reclaim A/C Heating Heating
Size CFM cu m/h SQ FT sq m MBH KW MBH KW MBH KW MBH KW MBH KW
03 1565 2659 3.13 0.29 58 17.0 50 14.7 73 21.4 177 51.9 93 27.3
06 2880 4893 5.76 0.54 110 32.2 92 27.0 136 39.9 341 99.9 179 52.4
08 3905 6635 7.81 0.73 150 44.0 124 36.3 179 52.5 452 132.4 254 74.4
10 4885 8300 9.77 0.91 190 55.7 156 45.7 229 67.1 548 160.6 317 92.9
12 6200 10534 12.40 1.15 241 70.6 198 58.0 286 83.8 684 200.4 395 115.7
14 7290 12386 14.58 1.36 284 83.2 232 68.0 328 96.1 812 237.9 465 136.2
18 8855 15045 17.71 1.65 345 101.1 282 82.6 418 122.5 1034 303.0 571 167.3
20 10025 17033 20.05 1.86 390 114.3 319 93.5 472 138.3 1162 340.5 651 190.7
26 13280 22563 26.56 2.47 520 152.4 423 124.0 616 180.5 1520 445.4 859 251.7
34 16825 28586 33.65 3.13 659 193.1 536 157.1 814 238.5 2026 593.6 1145 335.5
41 20365 34601 40.73 3.79 797 233.5 649 190.2 978 286.6 2406 705.0 1360 398.5
50 25313 43008 50.63 4.70 992 290.7 807 236.5 1196 350.4 2637 772.6 1586 464.7
65 32290 54861 64.58 6.00 1253 367.1 1029 301.5 1549 453.9 3798 1112.8 1848 541.5
75 37675 64011 75.35 7.00 1462 428.4 1200 351.7 1792 525.1 4407 1291.3 2156 631.7