Instruction manual

43
NOTES:
1. CFM in chart is without filters. Filters do not ship with this
furnace, but must be provided by the installer. If the furnace
requires 2 return filters, this chart assumes both filters are
installed.
2. All furnaces ship as high-speed cooling and medium-speed
heating. Installer must adjust blower cooling and heating
speed as needed.
WGFM1950704CXA
(MED-HI)
High 4.0 2,069 29 1,965 30 1,871 32 1,756 34 1,661 36
1,549 1,415 1,275
Med 3.5 1,752 34 1,724 34 1,667 36 1,603 37 1,488 40
1,402 1,290 1,082
Med-Lo 3.0 1,437 41 1,437 41 1,417 42 1,369 43 1,320 45
1,256 1,140 984
Low 2.5 1,184 50 1,177 50 1,161 51 1,132 52 1,095 54
1,047 928 837
WGFM1950904CXA
(MED-HI)
High 4.0 1,970 40 1,874 42 1,757 45 1,667 48 1,566 51
1,431 1,334 1,182
Med 3.5 1,713 46 1,650 48 1,572 50 1,510 52 1,418 56
1,313 1,211 1,079
Med-Lo 3.0 1,439 55 1,412 56 1,370 58 1,327 60 1,260 63
1,166 1,078 956
Low 2.5 1,183 67 1,155 69 1,122 74 1,108 72 1,062 75
1,011 931 816
WGFM1950905DXA
(MED-HI)
High 5.0 2,147 37 2,114 37 2,057 39 2,030 39 1,978 40
1,889 1,784 1,713
Med 4.0 1,675 47 1,686 47 1,640 48 1,623 49 1,557 51
1,501 1,455 1,360
Med-Lo 3.5 1,489 53 1,470 54 1,436 55 1,4099 56 1,361 58
1,318 1,243 1,130
Low 3.0 1,307 61 1,265 63 1,234 64 1,203 66 1,168 68
1,096 1,053 991
WGFM1951155DXA
(MED-HI)
High 5.0 2,134 46 2,103 47 2,029 48 1,941 51 1,906 51
1,818 1,733 1,625
Med 4.0 1,678 58 1,643 60 1,643 60 1,577 62 1,527 64
1,489 1,423 1,339
Med-Lo 3.5 1,453 68 1,440 68 1,426 69 1,363 72 1,349 73
1,314 1,253 1,205
Low 3.0 1,259 78 1,239 79 1,220 80 1,181 83 1,159 85
1,118 1,082 1,015
WFD1950453BXA
(MED-HI)
High 3.0 1,415 28 1,352 30 1,290 31 1,196 34 1,127 36
1,035 936 825
Med 2.5 1,221 33 1,178 34 1,127 36 1,073 38 1,007 40
932 834 733
Med-Lo 2.0 1,034 39 1,000 40 976 41 935 43 881 46
818 733 662
Low 1.5 860 47 845 48 812 50 783 51 740 54
682 619 534
WFD1950703BXA
(MED-HI)
High 3.0 1,431 42 1,368 44 1,296 47 1,228 49 1,150 53
1,055 962 860
Med 2.5 1,212 50 1,182 51 1,138 53 1,091 55 1,019 59
944 871 769
Med-Lo 2.0 1,002 60 978 62 956 63 921 66 878 69
825 738 647
Low 1.5 813 74 805 75 790 76 759 80 726 83
689 644 605
WFD1950704CXA
(MED-HI)
High 4.0 1,755 34 1,674 36 1,632 37 1,510 40 1,423 42
1,325 1,241 1,116
Med 3.5 1,656 36 1,585 38 1,536 39 1,429 42 1,355 45
1,268 1,145 1,059
Med-Lo 3.0 1,551 39 1,488 41 1,427 42 1,353 45 1,290 47
1,195 1,100 1,017
Low 2.5 1,286 47 1,258 48 1,241 49 1,185 51 1,112 54
1,067 983 886
WFD1950904CXA
(MED-HI)
High 4.0 1,734 46 1,652 49 1,578 51 1,508 53 1,413 57
1,336 1,248 1,154
Med 3.5 1,642 49 1,558 52 1,487 54 1,418 57 1,336 60
1,243 1,164 1,039
Med-Lo 3.0 1,522 53 1,458 55 1,396 58 1,321 61 1,253 64
1,182 1,101 986
Low 2.5 1,287 63 1,244 65 1,184 68 1,148 70 1,098 73
1,034 ‘953 849
WFD1950905DXA
(MED-HI)
High 5.0 2,189 37 2,109 38 2,025 40 1,948 41 1,862 43
1,757 1,644 1,537
Med 4.0 1,885 43 1,831 44 1,776 45 1,711 47 1,637 49
1,539 1,453 1,346
Med-Lo 3.5 1,665 48 1,627 50 1,584 51 1,524 53 1,462 55
1,400 1,323 1,220
Low 3.0 1,474 55 1,440 56 1,401 57 1,356 59 1,310 61
1,255 1,193 1,109
Blower Performance Data
CFM and Temperature Rise vs. External Static Pressure
Model—Heating
Speed as Shipped
Motor
Speed
Tons
AC at
0.5"
ESP
External Static Pressure (Inches Water Column)
0.1 0.2 0.3 0.4 0.5
0.6 0.7 0.8
CFMRiseCFMRiseCFMRiseCFMRiseCFMRise
CFM CFM CFM