Lennox CBX40UHV Series Installation And Service Procedure page 5

CBX40UHV­036 BLOWER PERFORMANCE
0 through 0.80 in. W.g. External Static Pressure Range
"AJUST"
Jumper Setting
+
NORM
-
NOTES:
S
The effect of static pressure, filter and electric heater resistance is included in the air volumes listed.
S
First stage cooling air volume is 70% of COOL speed settings. Continuous fan speed is approximately 28%, 38%, 70% and 100% (Jumper
selectable) of the same second­stage COOL speed selected, minimum 380 cfm.
S
Lennox Harmony III™ Zone Control applications - minimum blower speed if 380 cfm.
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
"HEAT" Speed
1 2
cf cf cfm
1230 1335 1445
m m
1120 1215 1315
1010 1185 1200
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
Jumper Speed Positions
3 4
cfm
1545 900
1400 810
1265 730
0.3 0.4
271 306
316 349
384 420
451 489
212 237
261 296
349 366
464 495
0.3 0.4
225 257
264 296
304 341
355 389
165 185
223 250
279 307
346 386
0.3 0.4
185 213
252 293
257 294
291 309
143 165
172 192
216 250
287 306
Page 5
"COOL" Speed
1 2 3
cf cf cfm
1225 1380
m m
1125 1275
1000 1135
0.5 0.6
323 359
375 417
463 486
537 566
263 284
314 342
407 441
531 566
0.5 0.6
279 304
319 340
371 393
423 450
216 247
272 299
340 363
418 454
0.5 0.6
234 263
315 336
312 330
333 366
193 218
219 248
275 294
339 371
4
cfm
1545
1400
1265
0.7 0.8
377 409
439 473
525 550
600 643
307 346
368 396
473 509
608 632
0.7 0.8
330 364
371 395
435 456
489 519
267 301
332 356
397 431
483 527
0.7 0.8
291 312
356 393
350 382
395 423
246 270
277 309
322 357
395 429