Table of Contents
Advertisement
Model
Motor
Number
Speed
CFM
RPM
Low
Watts
Amps
CFM
RPM
30
Middle
Watts
Amps
CFM
RPM
High
Watts
Amps
CFM
RPM
Low
Watts
Amps
CFM
RPM
36
Middle
Watts
Amps
CFM
RPM
High
Watts
Amps
--- Shaded boxes represent airflow outside the required 300-450 cfm/ton.
NOTES:
1. Airflow based upon dry coil at 230V with no electric heat, no filter.
2. Airflow is equivalent for front or bottom return configurations.
3. SCFM is nearly the same with cooling performance airflow, the gap is in the 1 to 2%.
The air distribution system has the greatest effect on airflow. The duct system is totally controlled by the contractor. For this reason, the contractor
should use only industry-recognized procedures.
Duct design and construction should be carefully done. System performance can be lowered dramatically through bad planning or workmanship.
Air supply diffusers must be selected and located carefully. They must be sized and positioned to deliver air along the perimeter of the space. If
they are too small for their intended airflow, they become noisy. If they are not located properly, they cause drafts. Air grilles must be properly sized
to carry air back to the blower.If they are too small, they also cause noise.
The installers should balance the air distribution system to ensure proper quiet airflow to all rooms in the home. This ensures a comfortable living
space.
0[0]
0.1[.02] 0.2[.05]
903
997
948
755
789
817
305
295
287
1.53
1.51
1.49
1187
1125
1076
916
875
899
324
339
331
1.67
1.66
1.64
1195
1306
1249
956
968
982
427
417
409
2.20
2.18
2.16
1007
1106
1056
818
843
868
371
361
349
1.62
1.58
1.53
1153
1269
1213
920
933
947
410
401
391
1.79
1.74
1.70
1375
1320
1267
986
996
1007
461
450
440
2.01
1.96
1.92
CFM(Watts)
External Static Pressure-Inches W.C.[kPa]
0.24[.06] 0.3[.07] 0.4[.10] 0.5[.12] 0.6[.15] 0.7[.17] 0.8[.20]
891
861
809
828
846
870
283
278
271
1.48
1.47
1.46
1055
1021
974
924
935
952
321
317
309
1.63
1.62
1.61
1166
1132
1069
987
994
1007
406
400
391
2.15
2.15
2.13
990
960
918
878
893
916
346
338
328
1.52
1.49
1.44
1131
1097
1069
956
965
982
385
380
368
1.67
1.65
1.60
1248
1204
1142
1011
1018
1030
436
427
416
1.90
1.87
1.81
-
-
760
903
-
-
263
-
-
1.44
-
-
912
-
-
-
-
967
-
-
302
1.59
-
-
1008
937
860
1015
1027
1041
384
375
363
2.11
2.09
2.07
-
-
857
941
-
-
316
-
-
1.4
-
-
-
-
973
997
-
-
357
-
-
1.55
-
-
1082
1011
919
1040
1051
1063
402
388
376
1.76
1.70
1.65
-
-
-
-
-
-
-
-
759
1054
351
2.05
-
-
-
-
-
-
-
-
801
1079
358
1.57
9
Hide quick links:
Advertisement
Table of Contents
