GMH95 & GCH95
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SS-GMH95
www.goodmanmfg.com
11/12
Supersedes 9/12
Standard Features
• Dual-diameter tubular heat exchanger
• Two-stage gas valve convertible technology allows installer
to activate the two-stage valve with the flip of a dipswitch
• 110V Silicon Nitride igniter designed for long igniter life
• Furnace control board with self-diagnostics, color-
coded low-voltage terminals, and provisions for
electronic air cleaner and 24-volt humidifiers
• Control board stores the last five diagnostic codes
in memory; simple push-button activation out-
puts the fault history to a flashing red LED
• Low constant fan allows homeowner to activate the low
heat speed to efficiently circulate air throughout the home
• Self-adjusting feature automatically adjusts to
high- or low-stage operation based on outside tem-
perature without an outdoor temperature sensor
• Dual-certified for sealed combustion direct vent (2-pipe)
or non-direct vent (1-pipe) applications
• All models comply with California NOx emissions standards
Contents
Nomenclature ....................................... 2
Product Specifications .......................... 3
Dimensions ........................................... 5
Airflow Data ...........................................7
Wiring Diagrams ................................... 9
Accessories ...........................................11
Cabinet Features
• Fully insulated, heavy-gauge steel cabi-
net with durable baked-enamel finish
• Foil-faced insulation lines the heat exchanger
• Designed for multi-position installation:
GMH95: upflow, horizontal left or right;
GCH95/GCH9: downflow, horizontal left or right
• Easy-to-install top venting is standard; alternate flue/vent
located on the right (GMH95)
• Airtight solid bottom for side-return applications and easy-cut
tabs for effortless removal in bottom air inlet applications
• Convenient left or right connection
for gas and electric service
• Coil and furnace fit flush for most installations
* Complete warranty details available from your local dealer or at www.goodmanmfg.com. To receive the Lifetime Heat
Exchanger Limited Warranty (good for as long as you own your home), 10-Year Unit Replacement Limited Warranty and 10-
Year Parts Limited Warranty, online registration must be completed within 60 days of installation. Online registration is not
required in California or Québec.
