Amana ACSS920402BN Technical Manual page 9

AIRFLOW DATA
Motor
Model Tons AC¹
Speed
High 3
*CSS92
Med 2.5
0402BNA
Med-Lo 2
Low 1.5
High 3
*CSS92
Med 2.5
0603BNA
Med-Lo 2
Low 1.5
High 4
*CSS92
Med 3.5
0804CNA
Med-Lo 3.0
Low 2.5
High 4
*CSS92
Med 3.5
1005CNA
Med-Lo 3.0
Low 2.5
¹ at 0.5" ESP
Notes
• CFM in chart is w ithout filter(s). Filters do not ship w ith this furnace, but must be provided by the installer. If the
furnace requires tw o return filters,
• All furnaces ship as high-speed cooling and medium-speed heating. Installer must adjust blow er cooling & heating speed as needed.
• For most jobs, about 400 CFM per ton w hen cooling is desirable.
• INSTALLATION IS TO BE ADJUSTED TO OBTAIN TEMPERATURE RISE WITHIN THE RANGE SPECIFIED ON THE RATING PLATE.
• This chart is for information only. For satisfactory operation, external static pressure should not exceed value show n on the
ti l t
• The above chart is for U.S. furnaces installed at 0-2000 feet. At higher altitudes, a properly derated unit w ill have
approximately the same temperature rise at a particular CFM, w hile ESP at the CFM w ill be low er.
(CFM & Temperature Rise vs. External Static Pressure)
External Static Pressure, (Inches Water Column)
0.1 0.2
CFM Rise CFM Rise
1,400 N/A 1,331 N/A 1,263
1,204 N/A 1,176 N/A 1,121
1020 33 998 34
841 41 827 41
1,668 31 1,335 38
1,224 42 1,182 43
1030 50 1005 51
859 60 830 62
1,770 39 1,645 41
1,690 40 1,615 42
1,612 42 1,540 44
1,396 49 1,339 51
1,793 48 1,699 50
1,693 50 1,622 53
1,632 52 1,546 55
1,429 60 1,380 62
0.3 0.4
CFM Rise CFM Rise
N/A 1,189 N/A 1,106
30 1,072 32
968 35 923 37
797 43 766 44
1,288 40 1,207 42
1,139 45 1,088 47
988 52 942 54
815 63 789 65
1,610 42 1,528 45
1,531 45 1,470 46
1,472 46 1,398 49
1,304 52 1,250 55
1,610 53 1,533 56
1,552 55 1,467 58
1,493 57 1,415 60
1,334 64 1,258 N/A 1,199
*CSS92
0.5 0.6 0.7
CFM Rise CFM CFM
31 1,020 941
1,002 34 927 853
880 39 820 739
727 47 680 634
1,133 45 1,061 955
1,015 50 948 859
893 57 830 751
751 N/A 693 629
1,437 47 1,340 1,251 1,141
1,393 49 1,308 1,196 1,099
1,306 52 1,223 1,132 1,010
1,170 58 1,092 1,010 906
1,461 58 1,363 1,247 1,146
1,390 61 1,320 1,205 1,083
1,332 64 1,257 1,148 1,054
N/A 1,136 1,041 942
0.8
CFM
843
740
652
556
845
759
666
556
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