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Data
CAB-PRC001-EN 21
Hot Water
Coils
Heating performance is based on 70 F (21 C) entering air temperature, 180 F (82 C) entering hot water temperature with a 30 F (-1 C)
∆T. All performance measured on high speed tap, zero ESP, and a throwaway filter.
Table PD-6. High Static Motor, Group 2
Heating
Unit CFM TMBH GPM WPD 115V 230V 277V
Size Coil (L/s) (TkW) Q/ITD (L/s) (kPa) Watt Watt Watt
2 2H 256 (121) 16.6 (4.9) 0.15 1.11 (0.07) 5.2 (15.5) 145 145 145
3H 250 (118) 20.9 (6.1) 0.19 1.39 (0.09) 11.8 (35.3) 145 145 145
4H 234 (111) 22.0 (6.5) 0.20 1.47 (0.09) 3.3 (9.9) 145 145 145
3 2H 330 (156) 21.5 (6.3) 0.20 1.43 (0.09) 9.2 (27.4) 140 140 140
3H 309 (146) 25.3 (7.4) 0.23 1.68 (0.11) 3.7 (11.1) 145 140 135
4H 290 (137) 27.6 (8.1) 0.25 1.84 (0.12) 5.4 (16.3) 145 140 135
4 2H 367 (173) 24.6 (7.2) 0.22 1.64 (0.10) 3.0 (8.9) 170 180 170
3H 440 (208) 36.0 (10.5) 0.33 2.40 (0.15) 8.0 (23.8) 210 210 210
4H 416 (196) 39.5 (11.6) 0.36 2.63 (0.17) 11.8 (35.3) 210 210 210
6 2H 610 (288) 40.5 (11.9) 0.37 2.70 (0.17) 8.8 (26.4) 245 240 240
3H 704 (332) 55.3 (16.2) 0.50 3.68 (0.23) 5.2 (15.4) 320 320 320
4H 662 (312) 61.1 (17.9) 0.56 4.07 (0.26) 7.2 (21.5) 320 320 320
8 2H 834 (394) 52.7 (15.5) 0.48 3.51 (0.22) 4.3 (12.7) 320 320 320
3H 815 (385) 66.9 (19.6) 0.61 4.46 (0.28) 8.1 (24.1) 320 320 320
4H 775 (366) 73.7 (21.6) 0.67 4.91 (0.31) 11.3 (33.8) 320 320 320
10 2H 1029 (486) 67.0 (19.6) 0.61 4.46 (0.28) 7.3 (21.8) 415 420 410
3H 1117 (527) 91.0 (26.7) 0.83 6.06 (0.38) 15.9 (47.4) 530 530 530
4H 1057 (499) 100.0 (29.3) 0.91 6.66 (0.42) 22.3 (66.6) 530 530 530
12 2H 1175 (554) 78.0 (22.8) 0.71 5.19 (0.33) 10.3 (30.8) 490 500 490
3H 1242 (586) 101.5 (29.8) 0.92 6.77 (0.43) 12.8 (38.4) 530 530 530
4H 1181 (557) 113.0 (33.1) 1.03 7.53 (0.47) 14.9 (44.6) 530 530 530
Note:
1. CFM = Cubic feet per minute
2. TMBH = Total capacity (MBH)
3. GPM = Gallons per minute
4. WPD = Water pressure drop (feet of water)
5. Q/ITD = MBH (kW)/(Entering water temperature - Entering air temperature) when DT and GPM (L/s) remain constant. To determine heating capacities at a different entering water
temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
6. Medium and low speed capacities are approximately 80 percent and 60 percent respectively of the high speed capacity.
7. High static motors need the appropriate length of duct to prevent poor acoustical applications.
Table PD-5. High Static Motor, Group 1
Heating
Unit CFM TMBH GPM WPD 115V 230V 277V
Size Coil (L/s) (TkW) Q/ITD (L/s) (kPa) Watt Watt Watt
2 2H 287 (135) 17.9 (5.3) 0.16 1.19 (0.08) 6.0 (17.8) 145 145 145
3H 282 (133) 22.9 (6.7) 0.21 1.52 (0.10) 13.8 (41.2) 145 145 145
4H 260 (123) 23.9 (7.0) 0.22 1.59 (0.10) 3.8 (11.5) 145 145 145
3 2H 365 (172) 23.0 (6.7) 0.21 1.53 (0.10) 10.3 (30.8) 140 140 140
3H 343 (162) 27.3 (8.0) 0.25 1.82 (0.11) 4.3 (12.8) 145 140 135
4H 318 (150) 29.7 (8.7) 0.27 1.98 (0.12) 6.2 (18.6) 145 140 135
4 2H 396 (187) 26.0 (7.6) 0.24 1.73 (0.11) 3.3 (9.8) 170 180 170
3H 484 (228) 38.6 (11.3) 0.35 2.57 (0.16) 9.1 (27.0) 210 210 210
4H 453 (214) 42.2 (12.4) 0.38 2.81 (0.18) 13.4 (39.9) 210 210 210
6 2H 668 (315) 43.1 (12.6) 0.39 2.87 (0.18) 9.9 (29.5) 245 240 240
3H 780 (368) 59.5 (17.4) 0.54 3.96 (0.25) 5.9 (17.7) 320 320 320
4H 725 (342) 65.6 (19.2) 0.60 4.37 (0.28) 8.2 (24.6) 320 320 320
8 2H 907 (428) 55.7 (16.3) 0.51 3.71 (0.23) 4.7 (14.2) 320 320 320
3H 886 (418) 71.2 (20.9) 0.65 4.74 (0.30) 9.1 (27.1) 320 320 320
4H 835 (394) 78.3 (22.9) 0.71 5.22 (0.33) 12.7 (37.8) 320 320 320
10 2H 1117 (527) 70.8 (20.7) 0.65 4.71 (0.30) 8.1 (24.1) 415 420 410
3H 1230 (580) 97.6 (28.6) 0.89 6.50 (0.41) 18.1 (54.0) 530 530 530
4H 1152 (544) 107.1 (31.4) 0.97 7.13 (0.45) 25.3 (75.6) 530 530 530
12 2H 1270 (600) 82.2 (24.1) 0.75 5.48 (0.35) 11.4 (34.0) 490 500 490
3H 1350 (637) 108.0 (31.6) 0.98 7.19 (0.45) 14.5 (43.2) 530 530 530
4H 1274 (601) 120.0 (35.2) 1.09 7.83 (0.51) 10.5 (31.4) 530 530 530