Lennox CBX40UHV Series Installation And Service Procedure page 7

CBX40UHV­048 AND CBX40UHV-060 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 450 cfm.
S
Lennox Harmony III™ Zone Control applications - minimum blower speed if 450 cfm.
CBX40UHV‐048 and CBX40UHV-060 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‐048 and CBX40UHV-060 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
"HEAT" Speed
1 2
cfm cfm
1850 1960 2090
1705 1800 1900
1560 1625 1720
Motor Watts @ Various External Static Pressures - in. wg.
0 0.1 0.2
418 478 539
492 540 585
594 645 721
653 713 755
312 342 373
407 459 503
581 646 691
646 695 746
Motor Watts @ Various External Static Pressures - in. wg.
0 0.1 0.2
325 366 404
369 421 465
436 488 540
523 581 636
226 259 293
312 355 382
388 421 482
538 599 647
Jumper Speed Positions
3 4
cfm cfm cfm
2150 1625
2005 1425
1770 1205
0.3 0.4
551 599
642 684
762 811
809 861
414 443
552 591
737 792
804 873
0.3 0.4
444 475
516 560
586 621
684 738
322 350
423 450
523 564
686 718
Page 7
"COOL" Speed
1 2 3
cfm cfm
1820 2055
1625 1805
1375 1555
0.5 0.6
646 675
732 761
863 874
909 941
475 512
627 670
826 863
900 934
0.5 0.6
520 566
587 616
671 710
789 816
387 413
492 520
606 641
792 820
4
cfm
2145
2005
1725
0.7 0.8
704 748
797 834
918 976
974 1028
558 587
718 752
900 942
976 1032
0.7 0.8
598 636
666 717
743 789
852 894
446 472
570 615
695 741
853 888