92-24161-65-02
SUPERSEDES 92-24161-65-01
INSTALLATION INSTRUCTIONS
FOR INDUCED DRAFT GAS FURNACES
GMUH UPFLOW/HORIZONTAL SERIES
GMDA DOWNFLOW SERIES
HEAT CONTROLLER
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/Horizontal Models Downflow Models
Model Number Input (Btu) Tons Model Number Input (Btu) Tons
GMUH50-E3A 50,000 3 GMDA50-E3A 50,000 3
GMUH75-E3A 75,000 3 GMDA75-E4A 75,000 4
GMUH75-E4A 75,000 4 GMDA75-E3A 75,000 3
GMUH100-E3A 100,000 3 GMDA100-E3A 100,000 3
GMUH100-E4A 100,000 4 GMDA100-E5A 100,000 5
GMUH100-E5A 100,000 5 GMDA125-E5A 125,000 5
GMUH125-E5A 125,000 5 GMDA150-E5A 150,000 5
GMUH150-E5A 150,000 5
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