Greenheck Make-Up Air Unit IGX-P120-H22-MF-E

Visual Inspection of Heat Exchanger

Inspect the heat exchanger for cracks

Inspect the tubes for discoloration

Is the airflow across the heat exchanger adequate?

Is the blower operating properly?

Lock-out the gas supply to the unit

Lock-out the electrical power to the unit

Check for oil accumulation on the wheel

Check for dust accumulation on the wheel

Ensure the motor is powered off and disconnected from the power source

Gather necessary cleaning materials (cloth, brush, etc.)

Clean the exterior surfaces of the motor to remove dust and grease build-up

Ensure no water or solvents have entered the motor or bearings

Verify that the motor housing is free of dust and grease

Confirm that the motor bearings have not been sprayed with water, steam, or solvents

Turn off electrical supply to the unit

Turn off gas supply to the unit

Disconnect the union between manifold and gas valve

Remove burner manifold and burner assembly

Inspect orifices and burners for debris

Clean orifices and burners as necessary

Lock-out the gas supply to the unit

Lock-out the electrical power to the unit

Clean exterior surfaces of the motor

Ensure no water or solvents enter the motor or bearings

Does the motor have grease fittings?

Grease the motor according to manufacturer's recommendations