Do you have a question about the Goodman GRL SERIES and is the answer not in the manual?
Symbol indicates important safety information in instructions.
Key warnings regarding fire, explosion, and carbon monoxide poisoning risks.
Specific safety precautions for furnace placement in garages or mobile homes.
Details minimum clearances to combustibles and accessibility for service.
Diagram and list identifying major components of the upflow furnace.
Guidelines for proper duct sizing, installation, and airflow for optimal furnace operation.
Instructions for performing temperature rise checks to ensure correct airflow.
Procedure for changing blower speeds to meet installation requirements.
Instructions for installing vent and combustion air piping systems.
Instructions for installing vent pipes for non-direct and direct vent systems.
Specifies minimum clearances for vent termination locations on buildings.
Details on direct vent installations, including guidelines, terminations, and air supply.
Procedures for connecting the furnace to the gas supply line.
Information on converting the furnace for LP gas and high altitude installations.
Instructions for measuring and adjusting gas supply and manifold pressures.
Guidelines for making safe and correct electrical connections to the furnace.
Instructions for wiring thermostats and optional accessories like air cleaners.
Details on operating twinned furnaces using single or two-stage thermostats.
Guidelines for converting natural gas furnaces for high altitude operation.
Step-by-step instructions for safely starting up the furnace for the first time.
Guidance on checking and adjusting furnace input rates for natural and LP gas.
Details on locating, maintaining, and replacing furnace air filters.
Recommendations for routine maintenance and annual inspections for safe operation.
A chart to diagnose and resolve common furnace operational problems.