92-24161-80-01
SUPERSEDES 92-24161-80-00
INSTALLATION INSTRUCTIONS
FOR INDUCED DRAFT GAS FURNACES
GF801U UPFLOW/HORIZONTAL SERIES
GF801D DOWNFLOW SERIES
U.L. recognized fuel gas and CO (carbon monoxide) detectors are recommended in
all applications, and their installation should be in accordance with the
manufacturer’s recommendations and/or local laws, rules, regulations, or customs.
Upflow Models Downflow Models
Model Number Input (Btu) Tons Model Number Input (Btu) Tons
GF801U050AS36 50,000 3 GF801D050AS36 50,000 3
GF801U075AS48 75,000 4 GF801D075AS36 75,000 3
GF801U100AW48 100,000 4 GF801D100AW48 100,000 4
GF801U125AS60 125,000 5 GF801D125AS60 125,000 5
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