Cb19-21 And Cbh19-21 Blower Performance; Cb19-26 And Cbh19-26 Blower Performance; Cb19-31 And Cbh19-31 Blower Performance; Cb19-41 And Cbh19-41 Blower Performance - Lennox CB19-21 Manual

Cb19 / cbh19 series up-flow, down-flow and horizontal blower coil units
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BLOWER DATA

CB19-21 AND CBH19-21 BLOWER PERFORMANCE

External Static
Air Volume at Various Blower Speeds
Pressure
High
in. wg.
Pa
cfm
L/s
0
0
855
405
.05
12
830
390
.10
25
800
380
.15
37
765
360
.20
50
730
345
.25
62
685
325
.30
75
640
300
.40
100
525
250
NOTE — All air data is measured external to unit.
Electric heaters have no appreciable air resistance.
For optional up-flow air filter resistance see separate table.

CB19-31 AND CBH19-31 BLOWER PERFORMANCE

External Static
Air Volume at Various Blower Speeds
Pressure
High
in. wg.
Pa
cfm
L/s
0
0
1400
660
.05
12
1370
645
.10
25
1335
630
.15
37
1290
610
.20
50
1240
585
.25
62
1190
560
.30
75
1130
535
.40
100
1000
470
.50
125
855
405
NOTE — All air data is measured external to unit.
Electric heaters have no appreciable air resistance.
For optional up-flow air filter resistance see separate table.
CB19-51 AND CBH19-51 BLOWER PERFORMANCE
WITH 208/230 VOLT MOTOR
External Static
Air Volume at Various Blower Speeds
Pressure
High
in. wg.
Pa
cfm
L/s
0
0
1950
920
.05
12
1910
900
.10
25
1870
880
.15
37
1830
865
.20
50
1780
840
.25
62
1730
815
.30
75
1680
795
.40
100
1570
740
.50
125
1410
665
NOTE — All air data is measured external to unit.
Electric heaters have no appreciable air resistance.
For optional up-flow air filter resistance see separate table.
CB19-65 AND CBH19-65 BLOWER PERFORMANCE
WITH 208/230 VOLT MOTOR
External Static
Air Volume at Various Blower Speeds
Pressure
High
in. wg.
Pa
cfm
L/s
0
0
2415
1140
.05
12
2360
1115
.10
25
2305
1090
.15
37
2245
1060
.20
50
2185
1030
.25
62
2130
1005
.30
75
2070
975
.40
100
1940
915
.50
125
1810
855
.60
150
1665
785
NOTE — All air data is measured external to unit.
Electric heaters have no appreciable air resistance.
For optional up-flow air filter resistance see separate table.
Medium
Low
cfm
L/s
cfm
L/s
630
295
530
250
625
295
525
250
620
295
520
245
610
290
515
245
595
280
505
240
570
270
490
230
535
250
465
220
425
200
365
170
Medium
Low
cfm
L/s
cfm
L/s
1270
600
1050
495
1250
590
1050
495
1220
575
1050
495
1190
560
1040
490
1150
545
1025
485
1110
525
1000
470
1060
500
970
460
945
445
885
420
815
385
765
360
Medium
Low
cfm
L/s
cfm
L/s
1640
775
1380
650
1620
765
1370
645
1600
755
1350
635
1580
745
1330
630
1550
730
1310
620
1520
715
1290
610
1490
705
1260
595
1400
660
1200
565
1280
605
1100
520
Medium
Low
cfm
L/s
cfm
L/s
2205
1040
1830
865
2165
1020
1815
855
2125
1005
1800
850
2085
985
1780
840
2040
965
1760
830
2000
945
1735
820
1950
920
1705
805
1845
870
1630
770
1725
815
1540
725
1585
750
1405
665

CB19-26 AND CBH19-26 BLOWER PERFORMANCE

External Static
Air Volume at Various Blower Speeds
Pressure
High
in. wg.
Pa
cfm
0
0
1150
.05
12
1105
.10
25
1065
.15
37
1020
.20
50
960
.25
62
905
.30
75
845
.40
100
680
NOTE — All air data is measured external to unit.
Electric heaters have no appreciable air resistance.
For optional up-flow air filter resistance see separate table.

CB19-41 AND CBH19-41 BLOWER PERFORMANCE

External Static
Air Volume at Various Blower Speeds
Pressure
High
in. wg.
Pa
cfm
0
0
1630
.05
12
1590
.10
25
1550
.15
37
1500
.20
50
1460
.25
62
1400
.30
75
1340
.40
100
1200
.50
125
1010
NOTE — All air data is measured external to unit.
Electric heaters have no appreciable air resistance.
For optional up-flow air filter resistance see separate table.
CB19-51 AND CBH19-51 BLOWER PERFORMANCE
WITH 460 VOLT (1 phase) MOTOR
External Static
Pressure
in. wg.
Pa
0
0
.05
12
.10
25
.15
37
.20
50
.25
62
.30
75
.40
100
.50
125
NOTE — All air data is measured external to unit.
Electric heaters have no appreciable air resistance.
For optional up-flow air filter resistance see separate table.
CB19-65 AND CBH19-65 BLOWER PERFORMANCE
WITH 460 VOLT (1 phase) MOTOR
External Static
Pressure
in. wg.
Pa
0
0
.05
12
.10
25
.15
37
.20
50
.25
62
.30
75
.40
100
.50
125
NOTE — All air data is measured external to unit.
Electric heaters have no appreciable air resistance.
For optional up-flow air filter resistance see separate table.
— 5 —
Medium
Low
L/s
cfm
L/s
cfm
545
1020
480
870
520
985
465
860
505
955
450
850
480
920
435
825
455
875
415
795
425
830
390
755
400
780
370
710
320
625
295
550
Medium
Low
L/s
cfm
L/s
cfm
770
1380
650
1130
750
1370
645
1150
730
1350
635
1160
710
1330
630
1160
685
1310
620
1160
660
1270
600
1150
630
1230
580
1130
565
1130
535
1050
475
960
455
890
Air Volume at Various Blower Speeds
High
Low
cfm
L/s
cfm
2020
955
1630
1950
920
1610
1920
905
1600
1870
880
1570
1820
860
1540
1770
835
1500
1710
805
1460
1590
750
1350
1430
675
1250
Air Volume at Various Blower Speeds
High
Low
cfm
L/s
cfm
2380
1125
2250
2340
1105
2180
2290
1080
2140
2250
1060
2110
2190
1035
2065
2130
1005
2015
2075
980
1970
1945
920
1860
1820
860
1760
L/s
410
405
400
390
375
355
335
260
L/s
535
545
545
545
545
545
535
495
420
L/s
770
760
755
740
725
710
690
635
590
L/s
1060
1030
1010
995
975
950
930
880
830

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