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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
Summary of Contents for GMDA
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