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General| Model | CG80UB |
|---|---|
| Efficiency Rating | 80% AFUE |
| Stages | Single-stage |
| Blower Motor Type | PSC |
| Ignition Type | Hot Surface Ignition |
| Heat Exchanger Material | Aluminized steel |
| Fuel Type | Natural Gas or Propane |
| Dimensions | Varies by model |
| Filter Type | Standard |
| Warranty | 5-Year parts warranty |
Installation instructions must be placed conspicuously near the furnace.
Details on horizontal installation for specific G1N80BR/CG80RB and G1N80BT/CG80TB models.
All models are suitable for closet or utility room installation. The furnace must be installed so that electrical components are protected from water.
Definition of an unconfined space and requirements for sufficient infiltration air for combustion.
Definition of a confined space and requirements for combustion air supply.
Excessive exposure to contaminated combustion air requires specific guidelines for safe operation.
Category I furnaces must be vented vertically or nearly vertically. Common and multistory venting is permitted.
This furnace can be sidewall (horizontally) vented with a listed sidewall venter.
When supply ducts extend outside the furnace space, return air must be handled by sealed ducts.
Details on horizontal installation for specific G1N80BR/CG80RB and G1N80BT/CG80TB models.
May be installed on supply plenum or coil cabinet if on non-combustible floor.
Filters should be checked regularly; disposable filters replaced, permanent filters cleaned.
Installation must conform to local codes and utility regulations for gas piping.
Furnace must be grounded and wired per local codes or NEC/CSA standards. Observe polarity.
Install thermostat on inside wall, away from drafts and direct sun. Set anticipator to match control circuit draw.
Connect lowest speed motor tap to 'CONT' terminal for continuous low-speed blower operation.
Terminals are provided for connecting a 120-volt humidifier to the blower control board.
Terminals are provided for connecting a 120-volt electronic air cleaner to the blower control board.
Blower control board supports 'twinning' of furnaces with a thermostat. Accessory kit required.
Describes the heating, fan 'on', and cooling sequences based on thermostat calls and control board logic.
Details operation of pressure switch, rollout switch, primary limit, auxiliary limit, and interlock switches.
Procedure for checking and adjusting gas input pressure to match rating plate specifications.
Check and adjust blower speed to maintain temperature rise within the specified range.
Furnace approved for 0-4500 ft. Adjustments needed for 4500-7500 ft.
Observe burner flames for proper blue color and appearance, checking for impingement.
Blower and induced draft motors are pre-lubricated but require periodic cleaning.
Visual checks and sequence review before troubleshooting using fault codes.
Control stores last five fault codes. Button to display and clear history.
List of available repair parts and ordering information.
