- Goodman Mfg. Co. LP. Furnace User Manual
BLOWER PERFORMANCE SPECIFICATIONS
12
1. CFM in chart is without filters(s). Filters do not ship with this furnace, but must be provided by the installer. If the furnace requires two
return filters, this chart assumes both filters are installed.
2. All furnaces ship as high speed cooling. Installer must adjust blower cooling speed as needed.
3. For most jobs, about 400 CFM per ton when cooling is desirable.
4. INSTALLATION IS TO BE ADJUSTED TO OBTAIN TEMPERATURE RISE WITHIN THE RANGE SPECIFIED ON THE RATING PLATE.
5. The chart is for information only. For satisfactory operation, external static pressure must not exceed value shown on rating plate. The
shaded area indicates ranges in excess of maximum external static pressure allowed when heating. The data for 0.6" w.c. to 0.8" w.c.
is shown for air conditioning purposes only.
6 The dashed (---) areas indicate a temperature rise not recommended for this model.
7. The above chart is for U.S. furnaces installed at 0-4000 feet. At higher altitudes, a properly derated unit will have approximately the
same temperature rise at a particular CFM, while the ESP at that CFM will be lower.
Tons AC
at 0.5" 0.6 0.7 0.8
ESP CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM
HIGH 3.0 1352 --- 1318 --- 1260 --- 1202 --- 1128 --- 1044 955 853
GKS90453BX* MED 2.5 1214 --- 1172 --- 1123 --- 1064 --- 1012 --- 938 859 741
(LOW) MED-LO 2.0 997 --- 994 --- 960 35 923 36 884 38 817 741 611
LOW 1.5 757 44 753 44 734 45 704 47 674 49 620 524 438
HIGH 3.0 144936140937132639127341120143119411361018
GKS90703BX* MED 2.5 119243117244114145109447104649 973904793
(MED-HI) MED-LO 2.0 981 53 962 54 943 55 917 56 888 58 830 764 665
LOW 1.5 750 --- 730 --- 714 --- 692 --- 657 --- 620 570 502
HIGH 4.0 2069 --- 1965 --- 1871 --- 1756 --- 1661 --- 1549 1415 1275
GKS90704CX* MED 3.5 1752 --- 1724 --- 1667 --- 1603 --- 1488 35 1402 1290 1082
(LOW) MED-LO 3.0 14373614373614173613693813203912561140984
LOW 2.5 1184 44 1177 44 1161 44 1132 46 1095 47 1047 928 837
HIGH 4.0 1970---187435175738166740156642143113341182
GKS90904CX* MED 3.5 1713 39 1650 40 1572 42 1510 44 1418 47 1313 1211 1079
(MED-LO) MED-LO 3.0 14394614124713704813275012605311661078956
LOW 2.5 1183 56 1155 57 1122 59 1108 60 1062 62 1011 931 816
HIGH 5.0 2147 --- 2114 --- 2057 --- 2030 --- 1978 --- 1889 1784 1713
GKS90905DX* MED 4.0 1675 40 1686 --- 1640 40 1623 41 1557 43 1501 1455 1360
(MED-LO) MED-LO 3.5 148945147045143646140947136149131812431130
LOW 3.0 13075112655212345412035511685710961053991
HIGH 5.0 213440210340202942194144190644181817331625
GKS91155DX* MED 4.0 1678 51 1643 52 1643 52 1577 54 1527 56 1489 1423 1339
(MED-HI) MED-LO 3.5 145358144059142659136362134963131412531205
LOW 3.0 1259 67 1239 68 1220 70 1181 --- 1159 --- 1118 1082 1015
BLOWER PERFORMANCE
0.1 0.2 0.3 0.4 0.5
(CFM & Temperature Rise vs. External Static Pressure)
Model
Heating Speed
As Shipped
Motor
Speed
EXTERNAL STATIC PRESSURE (Inches Water Column)
()