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The effect of static pressure, filter and electric heater resistance is included in the air volumes listed.
First stage cooling air volume is 70% of COOL speed setting. .
Continuous blower speeds are adjustable to 28%, 38%, 70% and 100% of COOL speed setting (default setting is 38%).
Lennox Harmony IIIt Zone Control applications
CBX40UHV-036 BLOWER MOTOR WATTS AT +" (Plus) AHC SETTING (Adjust Jumper at +" Setting)
AHC JUMPER SPEED
POSITIONS
HEAT SPEED
TAP 1
TAP 2
TAP 3
TAP 4
COOL SPEED
TAP 1
TAP 2
TAP 3
TAP 4
CBX40UHV-036 BLOWER MOTOR WATTS AT NORM" AHC SETTING ( Adjust" Jumper at NORM Setting)
AHC JUMPER SPEED
POSITIONS
HEAT SPEED
TAP 1
TAP 2
TAP 3
TAP 4
COOL SPEED
TAP 1
TAP 2
TAP 3
TAP 4
CBX40UHV-036 BLOWER MOTOR WATTS AT −" (Minus) AHC SETTING ( Adjust" Jumper at −" Setting)
AHC JUMPER SPEED
POSITIONS
HEAT SPEED
TAP 1
TAP 2
TAP 3
TAP 4
COOL SPEED
TAP 1
TAP 2
TAP 3
TAP 4
CBX40UHV-042 BLOWER PERFORMANCE
ADJUST JUMPER SETTING
+
NORM
–
NOTES
The effect of static pressure, filter and electric heater resistance is included in the air volumes listed.
First stage cooling air volume is 70% of COOL speed setting. .
Continuous blower speeds are adjustable to 28%, 38%, 70% and 100% of COOL speed setting (default setting is 38%).
Lennox Harmony IIIt Zone Control applications
CBX40UHV
minimum blower speed is 380 cfm.
MOTOR WATTS @ VARIOUS EXTERNAL STATIC PRESSURES − IN. WG.
0
0.1
0.2
189
223
253
238
273
295
279
322
348
327
387
427
130
157
184
183
211
232
248
284
315
347
376
418
MOTOR WATTS @ VARIOUS EXTERNAL STATIC PRESSURES − IN. WG.
0
0.1
0.2
146
173
199
186
234
241
226
263
281
261
296
321
98
117
143
144
168
197
198
227
265
255
285
313
MOTOR WATTS @ VARIOUS EXTERNAL STATIC PRESSURES − IN. WG.
0
0.1
0.2
110
139
161
182
210
236
175
193
224
199
234
257
86
102
124
103
130
148
144
163
192
196
224
255
0 through 0.80 in. w.g. External Static Pressure Range
HEAT SPEED
1
2
3
CFM
CFM
CFM
1100
1320
1540
1000
1200
1400
900
1080
1260
minimum blower speed is 450 cfm.
Page 5
0.3
0.4
0.5
271
306
323
316
349
375
384
420
463
451
489
537
212
237
263
261
296
314
349
366
407
464
495
531
0.3
0.4
0.5
225
257
279
264
296
319
304
341
371
355
389
423
165
185
216
223
250
272
279
307
340
346
386
418
0.3
0.4
0.5
185
213
234
252
293
315
257
294
312
291
309
333
143
165
193
172
192
219
216
250
275
287
306
339
AHC JUMPER SPEED POSITIONS
4
1
CFM
CFM
1760
1100
1600
1000
1440
900
0.6
0.7
0.8
359
377
409
417
439
473
486
525
550
566
600
643
284
307
346
342
368
396
441
473
509
566
608
632
0.6
0.7
0.8
304
330
364
340
371
395
393
435
456
450
489
519
247
267
301
299
332
356
363
397
431
454
483
527
0.6
0.7
0.8
263
291
312
336
356
393
330
350
382
366
395
423
218
246
270
248
277
309
294
322
357
371
395
429
COOL SPEED
2
3
4
CFM
CFM
CFM
1320
1540
1760
1200
1400
1600
1080
1260
1440
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