ECM MOTOR FAN CALIBRATION TABLE
CFM vs VDC (Imperial Units)
MODEL SERIES: 35S, 35SST UNIT SIZE 3 - 1/2 H.P. 277 VAC. Version F, 10.29.01
FAN POWERED TERMINAL UNIT ECMCT-1
CFM PWM 0-10 CFM PWM 0-10 CFM PWM 0-10 CFM PWM 0-10
VDC VDC VDC VDC VDC VDC VDC VDC VDC
INPUT INPUT INPUT INPUT
000480 3.50 2.45 816 7.00 4.90 1114 10.50 7.36
136 0.10 0.06 491 3.60 2.52 824 7.10 4.97 1123 10.60 7.43
144 0.20 0.13 501 3.70 2.59 833 7.20 5.04 1131 10.70 7.50
152 0.30 0.20 512 3.80 2.66 841 7.30 5.11 1140 10.80 7.57
161 0.40 0.27 522 3.90 2.73 850 7.40 5.18 1149 10.90 7.64
170 0.50 0.34 533 4.00 2.80 859 7.50 5.25 1158 11.00 7.71
179 0.60 0.41 543 4.10 2.87 867 7.60 5.32 1166 11.10 7.78
188 0.70 0.48 553 4.20 2.94 876 7.70 5.39 1175 11.20 7.85
197 0.80 0.55 563 4.30 3.01 884 7.80 5.46 1184 11.30 7.92
207 0.90 0.62 573 4.40 3.08 893 7.90 5.53 1193 11.40 7.99
216 1.00 0.69 584 4.50 3.15 901 8.00 5.60 1201 11.50 8.06
226 1.10 0.76 594 4.60 3.22 909 8.10 5.67 1210 11.60 8.13
236 1.20 0.83 603 4.70 3.29 918 8.20 5.74 1219 11.70 8.20
246 1.30 0.90 613 4.80 3.36 926 8.30 5.81 1228 11.80 8.27
256 1.40 0.97 623 4.90 3.43 935 8.40 5.89 1236 11.90 8.34
267 1.50 1.04 633 5.00 3.50 943 8.50 5.96 1245 12.00 8.41
277 1.60 1.11 643 5.10 3.57 952 8.60 6.03 1254 12.10 8.48
288 1.70 1.18 652 5.20 3.64 960 8.70 6.10 1262 12.20 8.55
298 1.80 1.25 662 5.30 3.71 968 8.80 6.17 1271 12.30 8.62
309 1.90 1.32 671 5.40 3.78 977 8.90 6.24 1279 12.40 8.69
319 2.00 1.39 681 5.50 3.85 985 9.00 6.31 1288 12.50 8.76
330 2.10 1.46 690 5.60 3.92 994 9.10 6.38 1296 12.60 8.83
341 2.20 1.53 699 5.70 3.99 1002 9.20 6.45 1305 12.70 8.90
352 2.30 1.60 709 5.80 4.06 1011 9.30 6.52 1313 12.80 8.97
362 2.40 1.67 718 5.90 4.13 1019 9.40 6.59 1321 12.90 9.04
373 2.50 1.75 727 6.00 4.20 1028 9.50 6.66 1329 13.00 9.11
384 2.60 1.82 736 6.10 4.27 1036 9.60 6.73 1337 13.10 9.18
395 2.70 1.89 745 6.20 4.34 1045 9.70 6.80 1345 13.20 9.25
406 2.80 1.96 754 6.30 4.41 1053 9.80 6.87 1353 13.30 9.32
416 2.90 2.03 763 6.40 4.48 1062 9.90 6.94 1361 13.40 9.39
427 3.00 2.10 772 6.50 4.55 1071 10.00 7.01 1368 13.50 9.46
438 3.10 2.17 781 6.60 4.62 1079 10.10 7.08 1376 13.60 9.53
448 3.20 2.24 789 6.70 4.69 1088 10.20 7.15
459 3.30 2.31 798 6.80 4.76 1097 10.30 7.22
470 3.40 2.38 807 6.90 4.83 1105 10.40 7.29
THIS UNIT HAS BEEN FACTORY SET AT ____________ CFM.
RE-CALIBRATION IS NOT REQUIRED UNLESS THE ZONE DESIGN AIRFLOW REQUIREMENT HAS CHANGED.
FOR CALIBRATION INSTRUCTIONS, REFER TO BULLETIN WWECM. CAUTION IF CALIBRATING IN SHADED
AREA. AT LOW VOLUMES, VARIATIONS IN FLOW FROM COOLING TO HEATING MAY BE GREATER THAN
5%. AT HIGH VOLUMES, NOISE MAY BE EXCESSIVE.
SUBJECT TO CHANGE WITHOUT NOTICE
A. Sample VDC vs. CFM Chart