10
AIR DELIVERY - POWER DRAW (WATTS)**
Unit
Operating Mode
CFM Airflow
External Static
External Static Pressure (ESP)
Size
Setting
Pressure Range*
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
040-14
POWER DRAW (WATTS)**
††
Low Heat
585
†
0-0.60
55
71
91
108
129
147
High Heat
800
0-1.0
97
119
141
165
187
209
230
252
274
292
††
1-1/2-Ton Cooling
525
0-0.50
‡
49
63
75
94
107
††
2-Ton A/C Cooling
700
0-0.90
‡
67
92
117
134
159
186
216
239
267
296
2-1/2-Ton A/C Cooling
875
0-1.0
112
138
164
188
210
236
256
275
295
317
3-Ton A/C Cooling
1050
0-1.0
167
202
233
263
288
307
334
364
388
417
3-1/2-Ton A/C Cooling
1225
0-1.0
232
266
308
341
380
413
448
491
524
561
Maximum
1400
0-1.0
317
379
425
475
527
535
542
546
551
563
060-14
††
Low Heat
500
†
0-0.50
43
55
70
83
97
High Heat
1065
0-1.0
150
175
200
234
264
292
321
352
378
408
††
1-1/2-Ton A/C Cooling
525
0-0.50
‡
46
62
74
91
104
††
2-Ton A/C Cooling
700
0-0.50
‡
69
86
105
124
138
2-1/2-Ton A/C Cooling
875
0-1.0
‡
101
126
154
179
202
226
248
267
287
313
3-Ton A/C Cooling
1050
0-1.0
149
174
199
233
263
291
320
351
377
407
3-1/2-Ton A/C Cooling
1225
0-1.0
210
248
278
312
344
384
418
449
476
503
Maximum
1400
0-1.0
311
341
384
420
455
495
529
568
602
612
080-14***
††
Low Heat
720
†
0-0.50
80
95
118
142
168
High Heat
1500
0-1.0
442
507
519
527
535
543
550
557
564
572
††
1-1/2-Ton A/C Cooling
525
0-0.50
‡
50
63
80
96
111
††
2-Ton A/C Cooling
700
0-0.50
‡
73
94
113
133
156
2-1/2-Ton A/C Cooling
875
0-1.0
‡
102
133
161
191
218
241
268
291
320
348
3-Ton A/C Cooling
1050
0-1.0
‡
168
206
240
273
299
324
356
385
418
460
3-1/2-Ton A/C Cooling
1225
0-1.0
‡
245
277
317
355
394
431
481
522
558
568
Maximum
1400
0-1.0
‡
376
422
478
520
527
537
544
553
560
568
080-20***
††
Low Heat
705
†
0-0.50
76
90
112
129
149
High Heat
1500
0-1.0
381
432
478
511
564
610
650
688
732
761
††
2-Ton A/C Cooling
700
0-0.50
‡
76
89
109
127
148
††
2-1/2-Ton A/C Cooling
875
0-0.50
‡
113
136
157
178
208
3-Ton A/C Cooling
1050
0-1.0
‡
158
191
213
239
266
300
326
351
392
425
3-1/2-Ton A/C Cooling
1225
0-1.0
‡
227
262
294
322
360
390
432
459
501
538
4-Ton A/C Cooling
1400
0-1.0
‡
298
340
384
417
458
493
534
574
607
647
5-Ton A/C Cooling
1750
0-1.0
587
631
664
724
772
815
861
907
943
988
Maximum
2000
0-1.0
839
911
973 1029 1066 1104 1134 1149 1170 1182
100-20***
Low Heat
920
†
0-1.0
113
136
159
186
221
243
263
285
316
340
High Heat
1525
0-1.0
378
419
448
486
518
561
606
650
696
730
††
2-Ton A/C Cooling
700
0-0.50
‡
74
89
109
126
146
††
2-1/2-Ton A/C Cooling
875
0-0.50
‡
99
124
147
168
200
3-Ton A/C Cooling
1050
0-1.0
‡
144
177
207
229
258
288
319
350
385
415
3-1/2-Ton A/C Cooling
1225
0-1.0
‡
189
223
268
306
346
377
399
447
488
517
4-Ton A/C Cooling
1400
0-1.0
‡
283
328
360
400
439
474
510
541
575
598
5-Ton A/C Cooling
1750
0-1.0
502
558
602
657
715
754
797
847
889
930
Maximum
2000
0-1.0
766
819
887
947
991 1030 1065 1101 1129 1152
120-20
Low Heat
1180
†
0-1.0
162
194
228
265
297
325
363
392
432
459
High Heat
1885
0-1.0
547
607
652
715
756
816
870
912
958 1000
††
2-Ton A/C Cooling
700
0-0.50
‡
72
89
113
128
146
††
2-1/2-Ton A/C Cooling
875
0-0.50
‡
98
119
140
163
187
3-Ton A/C Cooling
1050
0-1.0
‡
126
156
194
221
249
279
307
327
351
381
3-1/2-Ton A/C Cooling
1225
0-1.0
‡
178
211
253
284
314
352
382
424
455
494
4-Ton A/C Cooling
1400
0-1.0
‡
257
310
348
388
421
458
488
528
557
591
5-Ton A/C Cooling
1750
0-1.0
‡
461
498
552
618
665
711
760
800
847
888
6-Ton A/C Cooling
2100
0-1.0
794
867
931
996 1042 1092 1135 1152 1124 1098
Maximum
2100
0-1.0
592
673
746
811
885
935
994 1026 1102 1129
* Actual external static pressure (ESP) can be determined by using the fan laws (CFM 2 proportional to ESP); such as,
a system with 1750 CFM at 0.5 ESP would operate at high-heating airflow of 1500 CFM at 0.37 ESP and low-heating airflow
of 705 CFM at 0.08 ESP.
†
Low heat CFM when low-heat rise adjustment switch (SW1-3) and comfort/efficiency adjustment switch (SW1-4) on
control center are OFF.
‡
Ductwork must be sized for high-heating CFM within the operational range of ESP.
** Wattage data provided is for the circulating blower with bottom return and does not include draft inducer, accessories,
or gas controls.
††
Operation within the blank areas of the chart is not recommended because high-heat operation will be above 1.0 ESP.
*** All airflows on 21 in. casing size furnaces are 5 percent less on side return only installations.