GMSS92 Technical Manual

AIRFLOW DATA
9
*CSS92
0.6 0.7 0.8
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM CFM CFM
High 3 1,400 N/A 1,331 N/A 1,263 N/A 1,189 N/A 1,106 31 1,020 941 843
Med 2.5 1,204 N/A 1,176 N/A 1,121 30 1,072 32 1,002 34 927 853 740
Med-Lo 2 1020 33 998 34 968 35 923 37 880 39 820 739 652
Low 1.5 841 41 827 41 797 43 766 44 727 47 680 634 556
High 3 1,668 31 1,335 38 1,288 40 1,207 42 1,133 45 1,061 955 845
Med 2.5 1,224 42 1,182 43 1,139 45 1,088 47 1,015 50 948 859 759
Med-Lo 2 1030 50 1005 51 988 52 942 54 893 57 830 751 666
Low 1.5 859 60 830 62 815 63 789 65 751 N/A 693 629 556
High 4 1,770 39 1,645 41 1,610 42 1,528 45 1,437 47 1,340 1,251 1,141
Med 3.5 1,690 40 1,615 42 1,531 45 1,470 46 1,393 49 1,308 1,196 1,099
Med-Lo 3.0 1,612 42 1,540 44 1,472 46 1,398 49 1,306 52 1,223 1,132 1,010
Low 2.5 1,396 49 1,339 51 1,304 52 1,250 55 1,170 58 1,092 1,010 906
High 4 1,793 48 1,699 50 1,610 53 1,533 56 1,461 58 1,363 1,247 1,146
Med 3.5 1,693 50 1,622 53 1,552 55 1,467 58 1,390 61 1,320 1,205 1,083
Med-Lo 3.0 1,632 52 1,546 55 1,493 57 1,415 60 1,332 64 1,257 1,148 1,054
Low 2.5 1,429 60 1,380 62 1,334 64 1,258 N/A 1,199 N/A 1,136 1,041 942
¹ at 0.5" ESP
Note s
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.
*CSS92
1005CNA
• 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,
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.
*CSS92
0402BNA
*CSS92
0603BNA
*CSS92
0804CNA
(CFM & Temperature Rise vs. External Static Pressure)
Model
Motor
Speed
Tons AC¹
External Static Pressure, (Inches Water Column)
0.10.20.30.40.5