Goodman Gas Furnace GCSS920804CNAA

Connect a monometer to the outlet tap at the gas valve before adjusting the pressure regulator.

Measure the current manifold pressure.

Is the manifold pressure within 3 inches water column of 3.5 inches for natural gas or 10 inches for propane gas?

Adjust the pressure regulator direction

Propane Gas Specific Instructions

Ensure no unit gas valve regulator is used for propane gas.

Adjust the second stage supply line pressure regulator to 10 inches water column with all other gas consuming appliances running.

Ensure the air cleaner is installed in the correct position (not with the access door facing down).

Verify the air cleaner is located in the return air duct next to the blower compartment.

Electronic Air Cleaner Inspection

Inspect the accessibility of the electronic air cleaner for periodic inspection and cleaning.

Check the pre-filters for cleanliness and clean if necessary.

Inspect the electronic cells for cleanliness and clean if necessary.

Ensure the media air cleaner is accessible for periodic inspection and replacement of the filter cartridge.

Ensure the new filter is of the same type and size

Verify system operation after filter maintenance

Ensure all other gas appliances are turned off

Ensure the heating cycle has been in operation for at least fifteen minutes

Record the time taken for the hand on the cubic foot dial to make one complete revolution

Calculate the cubic feet of gas consumed per hour using the gas rate chart

Enter the calorific value of the gas (BTU per cubic foot)

Calculate the BTU input by multiplying the cubic feet of gas consumed per hour by the calorific value

Disconnect all power before servicing or installing the unit

Inspection of Furnace Components

Inspect the flue pipe system for blockage and/or leakage

Inspect the combustion air intake pipe system for blockage and/or leakage

Inspect the heat exchanger for corrosion and/or buildup

Inspect the burners for proper ignition, burner flame, and flame sense

Inspect the drainage system for blockage and/or leakage