SS-GMS8 www.goodmanmfg.com 7
PRODUCT SPECIFICATIONS
BLOWER PERFORMANCE SPECIFICATIONS
(CFM & Temperature Rise vs. External Static Pressure)
Model
Motor
Speed
Tons
AC¹
External Static Pressure, (Inches Water Column)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM CFM CFM
GMS8
0453ANB*
(Med)²
High 3.0 1,555 --- 1,511 --- 1,459 --- 1,392 --- 1,344 25 1,279 1,201 1,120
Med 2.5 1,165 28 1,123 30 1,100 30 1,090 30 1,048 32 1,017 970 903
Med-Lo 2.0 927 36 907 37 889 37 863 38 853 39 822 800 746
Low 1.5 699 47 694 48 668 50 645 51 636 52 592 566 524
GMS8
0703ANB*
(Med)²
High 3.0 1,437 36 1,310 39 1,295 40 1,310 39 1,273 41 1,202 1,129 1,039
Med 2.5 1,127 46 1,100 47 1,095 47 1,075 48 1,050 49 1,018 967 904
Med-Lo 2.0 895 --- 917 --- 878 --- 867 --- 853 --- 830 786 743
Low 1.5 694 --- 681 --- 663 --- 640 --- 625 --- 591 562 522
GMS8
0704BNB*
(Med)²
High 4.0 2,234 23 2,151 24 2,076 25 1,990 26 1,897 27 1,803 1,710 1,569
Med 3.5 1,676 31 1,653 31 1,648 31 1,581 33 1,555 33 1,492 1,414 1,352
Med-Lo 3.0 1,342 38 1,335 39 1,321 39 1,313 39 1,291 40 1,261 1,215 1,149
Low 2.5 1,089 47 1,085 48 1,078 48 1,071 48 1,057 49 1,040 986 932
GMS8
0904BNB*
(Med)²
High 4.0 2,182 --- 2,127 31 2,056 32 1,974 33 1,895 35 1,809 1,715 1,588
Med 3.5 1,645 40 1,628 40 1,615 40 1,597 41 1,541 43 1,491 1,440 1,350
Med-Lo 3.0 1,320 49 1,305 49 1,310 49 1,310 50 1,295 51 1,267 1,217 1,139
Low 2.5 1,063 60 1,061 60 1,057 61 1,056 61 1,039 61 1,025 1,005 948
GMS8
0905CNB*
(Med)²
High 5.0 2,334 --- 2,334 --- 2,284 --- 2,135 --- 2,051 35 1,910 1,748 1,605
Med 4.0 1,754 39 1,735 39 1,728 40 1,685 40 1,628 42 1,551 1,469 1,346
Med-Lo 3.5 1,367 47 1,380 47 1,371 47 1,374 48 1,335 50 1,293 1,246 1,165
Low 3.0 1,098 58 1,109 59 1,109 59 1,088 60 1,066 62 1,050 998 916
GMS8
1155CNB*
(Med)²
High 5.0 2,481 --- 2,395 35 2,288 37 2,217 38 2,076 41 1,999 1,858 1,732
Med 4.0 1,738 49 1,732 49 1,709 50 1,686 50 1,639 52 1,585 1,492 1,385
Med-Lo 3.5 1,364 62 1,378 62 1,372 62 1,372 62 1,350 63 1,313 1,261 1,125
Low 3.0 1,137 --- 1,142 --- 1,140 --- 1,114 --- 1,090 --- 1,056 954 860
GMS8
1405DNB
(Med)²
High 5.0 2,554 41 2,435 43 2,375 44 2,240 47 2,152 49 2,002 1,883 1,744
Med 4.0 1,846 57 1,773 59 1,762 60 1,712 61 1,672 63 1,583 1,526 1,442
Med-Lo 3.5 1,520 69 1,500 70 1,483 --- 1,470 --- 1,435 --- 1,373 1,308 1,245
Low 3.0 1,301 --- 1,274 --- 1,260 --- 1,231 --- 1,207 --- 1,177 1,093 931
* Low NOx model available.
¹ at 0.5” ESP
² Heating speed as shipped
Notes:
CFM in chart is without fi lter(s). Filters do not ship with this furnace, but must be provided by the installer. If the furnace requires two return
fi lters, this chart assumes both fi lters are installed.
All furnaces ship as high-speed cooling and medium-speed heating. Installer must adjust blower cooling and heating 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.
This chart is for information only. For satisfactory operation, external static pressure should not exceed value shown on the rating plate.
The shaded area indicates ranges in excess of recommended maximum heating static pressure.
The dashed (----) areas indicate a temperature rise not recommended for this model.
The above chart is for U.S. furnaces installed at 0-2000 feet. At higher altitudes, a properly derated unit will have approximately the same
temperature rise at a particular CFM, while ESP at the CFM will be lower.
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