Goodman GDS8 Technical Manual page 20

BLOWER PERFORMANCE SPECIFICATIONS
Model
Motor
Speed
HIGH
GDS8 0403A*A* MED
MED-LO
LOW
HIGH
GDS8 0603A*A* MED
MED-LO
LOW
HIGH
GDS8 0804B*A* MED
MED-LO
LOW
HIGH
GDS81005C*A* 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.
20
(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 25 1290
2.5 1 183 28 1113
2.0 980 34 946
1.5 778 43 762
3.0 1 290 40 1236
2.5 1 139 46 1090
2.0 962 54 927
1.5 787 66 776
4.0 2 128 31 2063
3.5 1 840 36 1788
3.0 1 602 42 1558
2.5 1 277 52 1252
5.0 2 405 35 2361
4.0 1 880 45 1838
3.5 1 659 51 1630
3.0 1 472 58 1454
0.2 0.3 0.4
26 1246 27 1199
30 1098 30 1052
35 920 36 900
44 738 45 746
42 1194 43 1166
48 1035 50 1063
56 925 56 941
67 763 68 744
32 2001 33 1927
37 1745 38 1689
43 1543 43 1493
53 1244 54 1229
36 2250 38 2161
46 1794 47 1734
52 1587 54 1537
59 1404 61 1366
GDS8***A*
0.5 0.6 0.7
28 1149 29 1116 1 116 1099
32 1039 32 1006 1 012
37 896 37 885 855
45 738 45 717 696
44 1176 44 1166 1 108 1029
49 1063 49 1020 962
55 909 57 877 834
70 723 72 690 641
35 1824 37 1726 1 628 1529
39 1625 41 1550 1 470 1364
45 1455 46 1402 1 328 1239
54 1214 55 1179 1 141 1079
39 2037 42 1937 1 808 1689
49 1677 51 1568 1 510 1401
55 1492 57 1445 1 368 1287
62 1326 64 1300 1 228 1139
0.8
969
804
678
895
779
581