Brochure
5
Downow GDD Dimensions
80% Gas Furnace Downow
GDD80 Series High Efficiency Downflow Series
GDD80 Models -054A3 -072B4 -090B4 -108C5 -126D5
Input-BTUH 54,000 72,000 90,000 108,000 126,000
Heating Cap. BTUH 43,200 57,600 72,000 86,400 100,800
AFUE 80.0 80.0 80.0 80.0 80.0
Nominal Tons Cooling 3 4 4 5 5
Blower D x W 10 x 6 11 x 8 11 x 8 11 x 10 11 x 10
Motor HP-Speed-Type 1/3-4-PSC 1/2-4-PSC 1/2-4-PSC 3/4-4-PSC 1.0-4-PSC
Heating Speed* Med-Low Med-Low Med-Low Med-Low Med-Low
Cooling Speed* High High High High High
Motor FLA 4.80 8.20 8.20 13.75 13.75
Rated Ext. SP in W.C. 0.5 0.5 0.5 0.5 0.5
Temp. Rise Range oF 30-60 35-65 35-65 40-70 40-70
Shipping Weight (lbs) 100 110 115 125 145
GDD80 Models A B C D
-054A3 14
1
/4 10
3
/4 12
5
/8 12
7
/8
-072B4
17
1
/2 11
3
/4 15
7
/8 16
1
/8
-090B4
-108C5 21 14 19
3
/8 19
5
/8
-126D5 24
1
/2 15
1
/4 22
7
/8 23
1
/8
Downow GDD Models
Physical and Data Specications
* Factory setting
Gas connection for all models is 1/2” N.P.T.
WARNING
THIS FURNACE IS NOT APPROVED OR
RECOMMENDED FOR USE IN MOBILE HOMES