Goodman GDS8 Technical Manual page 21

BLOWER PERFORMANCE SPECIFICATIONS
Model
Motor
Speed
HIGH
GDS8 0403A*B* MED
MED-LO
LOW
HIGH
GDS8 0603A*B* MED
MED-LO
LOW
HIGH
GDS8 0804B*B* MED
MED-LO
LOW
HIGH
GDS81005C*B* MED
MED-LO
LOW
NOTES:
• CFM in chart is without filter(s). Filters do not ship with this furnace, but must be provided by the installer.
• All furnaces ship as hig-speed cooling. Installer must adjust blower cooling speed as needed.
• For most jobs, about 400 CFM per ton when cooling is desirable
• INSTALLATION IS TO BE ADJUSTED TO OBTAIN TEMPERATURE RISE WITHIN THE RANGE SPECIFIED ON THE RATING PLATE.
• The chart is for information only. For satisfactory operation, external static pressure must not exceed values shown on the rating plate. The shaded area
indicates ranges in excess of maximum static pressure allowed when heating.
• The dashed (---) areas indicate a temperature rise not recommended for this model.
• At higher altitudes, a properly de-rated unit will have approximately the same temperature rise at a particular CFM, while ESP at the CFM will be lower.
(CFM & Temperature Rise vs. External Static Pressure)
Tons AC EXTERNAL STATIC PRESSURE (Inches Water Column)
at 0.5" 0.1
ESP CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM
3.0 1 353 ---- 1290
2.5 1 183 25 1113
2.0 980 30 946
1.5 778 38 762
3.0 1 290 34 1236
2.5 1 139 39 1090
2.0 962 46 927
1.5 787 56 776
4.0 2 128 ---- 2063
3.5 1 840 ---- 1788
3.0 1 602 37 1558
2.5 1 277 46 1252
5.0 2 405 ---- 2361
4.0 1 880 39 1838
3.5 1 659 45 1630
3.0 1 472 50 1454
0.2 0.3 0.4
--- - 1246 ---- 1199
27 1098 27 1052
31 920 32 900
39 738 40 746
36 1194 37 1166
41 1035 43 1063
48 925 48 941
57 763 58 744
--- - 2001 ---- 1927
--- - 1745 ---- 1689
38 1543 38 1493
47 1244 48 1229
--- - 2250 ---- 2161
40 1794 41 1734
45 1587 47 1537
51 1404 53 1366
GDS8***B*
0.5 0.6
25 1149 26 1116 1 116 1099
28 1039 29 1006 1 012
33 896 33 885
40 738 40 717
38 1176 38 1166 1 108 1029
42 1063 42 1020
47 909 49 877
60 723 ---- 690
---- 1824 ---- 1726 1 628 1529
35 1625 36 1550 1 470 1364
40 1455 41 1402 1 328 1239
48 1214 49 1179 1 141 1079
----- 2037 36 1937 1 808 1689
43 1677 44 1568 1 510 1401
48 1492 50 1445 1 368 1287
54 1326 56 1300 1 228 1139
0.7 0.8
969
855 804
696 678
962 895
834 779
641 581
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