Nordyne 80+ AFUE Two, Installation Instructions Manual

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AIRFLOW DATA
*SA - UPFLOW / HORIZONTAL GAS FURNACES - 80% AFUE,
Model
Number
Heating
Input
(Btuh)
Motor
Speed
External Static Pressure (Inches Water Column)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise
SA045(†)-23A
Bottom Retur
n
45,000
High* 1,260 26 1,205 28 1,145 29 1,080 31 1,025 33 960 35 890 37 825 40
Med-High 955 35 950 35 940 35 935 36 925 36 860 39 800 42 725 46
Med-Low** 825 40 800 42 760 44 730 46 690 48 650 51 600 56 530 63
Low 655 51 630 53 610 55 580 57 550 61 520 64 480 69 435 77
SA045(†)-23A
Side Retur
n
45,000
High* 1,350 25 1,290 26 1,225 27 1,155 29 1,100 30 1,025 33 950 35 885 38
Med-High 1,025 33 1,015 33 1,005 33 1,000 33 990 34 920 36 855 39 775 43
Med-Low** 885 38 855 39 815 41 780 43 740 45 695 48 640 52 565 59
Low 700 48 675 49 655 51 620 54 590 56 555 60 515 65 465 72
SA054(†)-23A Bottom Retur
n
54,000
High* 1,260 32 1,205 33 1,145 35 1,080 37 1,025 39 960 42 890 45 825 48
Med-High** 955 42 950 42 940 43 935 43 925 43 860 47 800 50 725 55
Med-Low 825 48 800 50 760 53 730 55 690 58 650 62 600 67 530 75
Low 655 61 630 63 610 66 580 69 550 73 520 77 480 83 435 92
SA054(†)-23A
Side Retur
n
54,000
High* 1,350 30 1,290 31 1,225 33 1,155 35 1,100 36 1,025 39 950 42 885 45
Med-High** 1,025 39 1,015 39 1,005 40 1,000 40 990 40 920 43 855 47 775 52
Med-Low 885 45 855 47 815 49 780 51 740 54 695 58 640 63 565 71
Low 700 57 675 59 655 61 620 65 590 68 555 72 515 78 465 86
SA072(†)-24B
Bottom Retur
n
72,000
High* 1,685 32 1,640 33 1,605 33 1,565 34 1,515 35 1,475 36 1,415 38 1,345 40
Med-High 1,330 40 1,295 41 1,275 42 1,245 43 1,215 44 1,185 45 1,135 47 1,070 50
Med-Low** 1,175 45 1,155 46 1,125 47 1,100 48 1,075 50 1,045 51 1,010 53 955 56
Low 930 57 895 60 885 60 850 63 825 65 800 67 770 69 740 72
SA072(†)-24B
Side Retur
n
72,000
High* 1,770 30 1,720 31 1,685 32 1,645 32 1,590 34 1,550 34 1,485 36 1,415 38
Med-High 1,400 38 1,360 39 1,340 40 1,310 41 1,275 42 1,245 43 1,190 45 1,125 47
Med-Low** 1,235 43 1,215 44 1,180 45 1,155 46 1,130 47 1,100 48 1,060 50 1,005 53
Low 975 55 940 57 930 57 890 60 865 62 840 63 810 66 775 69
SA090(†)-24B
Bottom Retur
n
90,000
High* 1,610 41 1,575 42 1,530 44 1,485 45 1,440 46 1,385 48 1,340 50 1,275 52
Med-High** 1,295 51 1,260 53 1,235 54 1,220 55 1,175 57 1,135 59 1,095 61 1,015 66
Med-Low 1,155 58 1,130 59 1,100 61 1,070 62 1,035 64 1,015 66 965 69 920 72
Low 880 76 860 78 830 80 800 83 765 87 740 90 675 99 660 101
SA090(†)-24B
Side Retur
n
90,000
High* 1,690 39 1,655 40 1,610 41 1,560 43 1,510 44 1,455 46 1,405 47 1,340 50
Med-High** 1,360 49 1,325 50 1,300 51 1,280 52 1,235 54 1,190 56 1,150 58 1,065 63
Med-Low 1,215 55 1,190 56 1,155 58 1,125 59 1,090 61 1,065 63 1,015 66 965 69
Low 925 72 900 74 870 77 840 79 800 83 775 86 710 94 695 96
SA072(†)-35C Bottom Retur
n
72,000
High* 1,950 27 1,865 29 1,790 30 1,715 31 1,630 33 1,550 34 1,475 36 1,390 38
Med-High 1,860 29 1,780 30 1,710 31 1,635 33 1,575 34 1,500 36 1,415 38 1,325 40
Med-Low** 1,300 41 1,240 43 1,200 44 1,160 46 1,120 48 1,065 50 995 54 910 59
Low 1,165 46 1,115 48 1,060 50 1,025 52 985 54 940 57 890 60 825 65
SA072(†)-35C
Side Retur
n
72,000
High* 2,030 26 1,940 27 1,860 29 1,785 30 1,695 31 1,615 33 1,535 35 1,445 37
Med-High 1,935 28 1,850 29 1,780 30 1,700 31 1,340 40 1,560 34 1,470 36 1,380 39
Med-Low** 1,350 40 1,290 41 1,250 43 1,205 44 1,165 46 1,110 48 1,035 52 945 56
Low 1,215 44 1,160 46 1,105 48 1,065 50 1,025 52 980 54 925 58 860 62
SA072(†)-35C Side + Bottom
or 2 Sides
72,000
High* 2,050 26 1,960 27 1,880 28 1,800 30 1,710 31 1,630 33 1,550 34 1,460 37
Med-High 1,955 27 1,870 29 1,800 30 1,715 31 1,655 32 1,575 34 1,485 36 1,390 38
Med-Low** 1,365 39 1,300 41 1,260 42 1,220 44 1,175 45 1,120 48 1,045 51 955 56
Low 1,225 44 1,170 46 1,115 48 1,075 50 1,035 52 985 54 935 57 865 62
Table 4. Maximum Airfl ow and Temperature Rises (°F) - Upfl ow/Horizontal Gas Furnaces