GMSS92 Technical Manual
AIRFLOW DATA
*MSS92
0.6 0.7 0.8
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM CFM CFM
High 3 1,498 N/A 1,446 N/A 1,368 N/A 1,302 N/A 1,227 N/A 1,145 1,059 954
Med 2.5 1,223 N/A 1,182 N/A 1,153 30 1,099 31 1,051 32 982 901 813
Med-Lo 2 983 35 971 35 945 36 919 37 878 39 813 746 659
Low 1.5 816 42 794 43 758 45 734 46 678 50 637 597 523
High 3 1,494 N/A 1,428 36 1,362 38 1,294 39 1,231 42 1,162 1,076 972
Med 2.5 1,203 42 1,178 43 1,147 45 1,101 46 1,045 49 986 927 831
Med-Lo 2 977 52 965 53 939 54 904 57 866 59 801 763 639
Low 1.5 801 64 786 65 751 N/A 714 N/A 714 N/A 680 635 596
High 3 1,459 47 1,397 49 1,339 51 1,270 54 1,202 57 1,107 1,049 952
Med 2.5 1,191 57 1,166 58 1,137 60 1,086 63 1,033 N/A 973 889 797
Med-Lo 2 985 N/A 967 N/A 932 N/A 900 N/A 859 N/A 805 731 620
Low 1.5 808 N/A 785 N/A 758 N/A 726 N/A 679 N/A 629 590 513
High 5 2,115 N/A 2,050 N/A 1,973 35 1,915 36 1,810 38 1,695 1,587 1,467
Med 4 1,802 38 1,739 39 1,725 40 1,665 41 1,612 42 1,532 1,443 1,320
Med-Lo 3.5 1,517 45 1,509 45 1,496 46 1,475 46 1,441 47 1,388 1,304 1,205
Low 3 1,213 56 1,225 56 1,216 56 1,194 57 1,179 58 1,135 1,084 1,005
High 5 2,284 30 2,231 31 2,170 31 2,103 32 2,037 33 1,945 1,836 1,750
Med 4 1,865 37 1,869 36 1,775 38 1,732 39 1,684 40 1,619 1,548 1,480
Med-Lo 3.5 1,594 43 1,571 43 1,530 45 1,492 46 1,454 47 1,414 1,355 1,293
Low 3 1,411 48 1,366 50 1,325 51 1,296 53 1,251 54 1,200 1,147 1,096
High 5 2,082 41 1,997 43 1,943 44 1,847 46 1,749 49 1,669 1,560 1,443
Med 4 1,823 47 1,782 48 1,711 50 1,659 51 1,574 54 1,513 1,402 1,305
Med-Lo 3.5 1,565 54 1,545 55 1,529 56 1,487 57 1,441 59 1,365 1,287 1,196
Low 3 1,261 N/A 1237 N/A 1,242 N/A 1,216 N/A 1,179 N/A 1,145 1,098 1,034
High 5 2,137 40 2,073 41 2,031 42 1,949 44 1,879 45 1,811 1,734 1,625
Med 4 1,793 48 1,754 49 1,704 50 1,648 52 1,590 54 1,534 1,451 1,371
Med-Lo 3.5 1,558 55 1,518 56 1,477 58 1,425 60 1,376 62 1,316 1,242 1,170
Low 3 1,370 62 1,325 64 1,288 N/A 1,237 N/A 1,191 N/A 1,134 1,086 1,024
High 5 2,256 45 2,192 47 2,133 48 2,054 50 1,986 51 1,907 1,834 1,718
Med 4 1,805 57 1,762 58 1,722 59 1,677 61 1,618 63 1,563 1,507 1,441
Med-Lo 3.5 1,565 65 1,513 N/A 1,480 N/A 1,415 N/A 1,392 N/A 1,346 1,269 1,198
Low 3 1,368 N/A 1,326 N/A 1,278 N/A 1,238 N/A 1,208 N/A 1,165 1,093 1,052
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.
• 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
*MSS92
0402BNA
*MSS92
0603BNA
*MSS92
0803BNA
*MSS92
0804CNA
*MSS92
0805CNA
*MSS92
1004CNA
*MSS92
1005CNA
*MSS92
1205DNA
0.4 0.5
(CFM & Temperature Rise vs. External Static Pressure)
• 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.
• 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
rating plate.
Motor
Speed
Tons AC¹ 0.1 0.2 0.3Model
External Static Pressure, (Inches Water Column)