Airflow Data - Nordyne SC Installation Instructions Manual

MAXIMUM AIRFLOW & TEMPERATURE RISES (
Model Number
& Motor
Heating Input Speed
(Btuh)
*
High
SC038D-23A
Med-High
Bottom Return
**
Med-Low
(38,000)
Low
*
High
SC038D-23A
Med-High
Side Return
**
Med-Low
(38,000)
Low
*
High
SC054D-24B
Med-High
Bottom Return
**
Med-Low
(54,000)
Low
*
High
SC054D-24B
Med-High
Side Return
**
Med-Low
(54,000)
Low
*
High
SC072D-24B
**
Med-High
Bottom Return
Med-Low
(72,000)
Low
*
High
SC072D-24B
**
Med-High
Side Return
Med-Low
(72,000)
Low
*
High
SC072D-35C
**
Med-High
Bottom Return
Med-Low
(72,000)
Low
*
High
SC072D-35C
**
Med-High
Side Return
Med-Low
(72,000)
Low
*
High
SC072D-35C
**
Med-High
Side + Bottom
or 2 Sides
Med-Low
(72,000)
Low
*
High
SC090D-35C
**
Med-High
Bottom Return
Med-Low
(90,000)
Low
*
High
SC090D-35C
**
Med-High
Side Return
Med-Low
(90,000)
Low
*
High
SC090D-35C
**
Med-High
Side + Bottom
or 2 Sides
Med-Low
(90,000)
Low

Airflow Data

*SC SERIES UPFLOW / HORIZONTAL FURNACES
External Static Pressure (Inches Water Column)
0.1 0.2
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise
1,245 26 1,200 27 1,150
1,115 29 1,075 30 1,030
785 41 770 42 745
645 50 630 51 610
1,330 — 1,285 25 1,230
1,195 27 1,150 28 1,100
840 39 825 39 800
680 48 675 48 655
1,550 30 1,520 30 1,485
1,250 37 1,220 38 1,200
935 49 910 51 880
720 — 690 — 655
1,630 — 1,595 — 1,560
1,315 35 1,280 36 1,260
980 47 955 48 925
755 — 725 — 690
1,590 39 1,550 40 1,525
1,260 49 1,240 49 1,220
1,125 55 1,110 55 1,085
895 — 865 — 830
1,670 37 1,630 38 1,600
1,325 46 1,300 47 1,280
1,180 52 1,165 53 1,140
940 — 910 — 870
1,895 — 1,790 — 1,720
1,775 35 1,710 36 1,650
1,255 49 1,200 51 1,155
1,140 54 1,100 56 1,065
1,970 — 1,865 — 1,780
1,845 — 1,780 — 1,715
1,305 47 1,250 49 1,200
1,185 52 1,145 54 1,110
1,990 — 1,880 — 1,805
1,865 — 1,795 — 1,735
1,320 46 1,260 49 1,215
1,200 51 1,155 53 1,120
2,155 36 2,090 37 2,015
2,015 38 1,960 39 1,920
1,705 45 1,675 46 1,640
1,410 54 1,390 55 1,365
2,240 — 2,175 35 2,100
2,095 37 2,040 38 2,000
1,775 43 1,740 44 1,705
1,465 52 1,445 53 1,420
2265 — 2,195 35 2,115
2,115 36 2,060 37 2,015
1,790 43 1,760 44 1,725
1,480 52 1,460 53 1,435
Table 6. *SC Upflow / Horizontal Furnaces
0
0.3 0.4 0.5
28 1,100 29 1,050 31
31 990 33 935 35
43 720 45 680 48
53 580 — 555 —
26 1,175 28 1,125 29
29 1,060 31 1,000 32
40 770 42 730 44
49 620 52 600 54
31 1,450 32 1,410 33
38 1,170 39 1,140 40
52 850 54 815 56
— 620 — 585 —
— 1,525 30 1,480 31
37 1,230 37 1,200 38
50 890 52 855 54
— 650 — 615 —
40 1,475 42 1,425 43
50 1,185 52 1,160 53
57 1,050 58 1,025 60
— 795 — 775 —
38 1,550 40 1,495 41
48 1,245 49 1,220 50
54 1,100 56 1,075 57
— 935 — 815 —
36 1,630 38 1,550 40
37 1,550 40 1,470 42
53 1,105 56 1,050 58
58 1,025 60 980 63
— 1,695 36 1,615 38
36 1,615 38 1,530 40
51 1,150 53 1,090 56
55 1,065 58 1,020 60
— 1,710 36 1,630 38
35 1,630 38 1,545 40
50 1,160 53 1,105 56
55 1,075 57 1,030 60
38 1,960 39 1,910 40
40 1,860 41 1,805 42
47 1,590 48 1,555 49
56 1,330 58 1,310 59
37 2,040 38 1,985 39
38 1,935 40 1,875 41
45 1,655 46 1,615 47
54 1,385 55 1,360 56
36 2,060 37 2,005 38
38 1,955 39 1,895 40
44 1,670 46 1,635 47
53 1,400 55 1,375 56
F) FOR
0.6 0.7
985 33 920 35
880 37 815 40
640 51 595 54
525 — 480 —
1,055 31 985 33
940 34 875 37
685 47 640 51
560 — 515 —
1,360 34 1,300 35 1,255
1,105 42 1,065 43 1,010
785 59 735 —
550 — 520 —
1,430 32 1,365 34 1,320
1,160 40 1,120 41 1,060
825 56 775 59
580 — 545 —
1,380 44 1,325 46 1,240
1,110 55 1,085 57 1,030
990 — 940 —
750 — 693 —
1,450 42 1,390 44 1,300
1,165 53 1,140 54 1,080
1,040 59 985 —
790 — 730 —
1,445 42 1,330 46 1,225
1,385 44 1,290 48 1,180
1,000 61 925 —
930 — 870 —
1,505 41 1,385 44 1,275
1,440 43 1,340 46 1,230
1,040 59 965 64
965 64 905 —
1,510 41 1,400 44 1,285
1,455 42 1,355 45 1,240
1,050 58 970 63
975 63 915 —
1,835 42 1,755 44 1,660
1,755 44 1,695 45 1,615
1,495 51 1,435 53 1,340
1,275 60 1,235 62 1,210
1,910 40 1,825 42 1,725
1,825 42 1,765 43 1,680
1,555 49 1,490 51 1,335
1,325 58 1,285 60 1,260
1,930 40 1,845 42 1,745
1,845 42 1,780 43 1,695
1,570 49 1,510 51 1,410
1,340 57 1,300 59 1,270
0.8
865 37
740 44
530 —
420 —
925 35
790 41
560 —
450 —
37
46
680 —
485 —
35
43
715 —
510 —
49
60
865 —
665 —
47
57
910 —
640 —
50
52
830 —
805 —
48
50
865 —
840 —
48
49
875 —
845 —
46
47
57
63
44
46
57
61
44
45
54
60
35