92-24161-82-04
SUPERSEDES 92-24161-82-03
INSTALLATION INSTRUCTIONS
FOR HIGH EFFICIENCY CONDENSING GAS FURNACES
GF901U UPFLOW SERIES
GF901D DOWNFLOW/HORIZONTAL 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/Horizontal Models
Model Number Input (Btu) Tons Model Number Input (Btu) Tons
GF901U045AS36 45,000 3 GF901D045AS36 45,000 3
GF901U060AS36 60,000 3 GF901D060AS36 60,000 3
GF901U075AS36 75,000 3 GF901D075AS36 75,000 3
GF901U105AS60 105,000 5 GF0-1D105AS60 105,000 5
GF901U120AS60 120,000 5 GF901D120AS60 120,000 5
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