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

Disconnect and lock-out all power and gas

Check for foreign objects in housing, fan, and ductwork

Has the water supply been shut off?

Have all exposed lines been drained?

Clean all interior parts of any mineral deposits or foreign materials

Inspect for worn or non-functioning parts

Replace any worn or non-functioning parts

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

Clean oil and dust from the wheel

Lock-out the gas supply to the unit

Lock-out the electrical power to the unit

Check for sediment in the circulating fluid

Check for corrosive products in the circulating fluid

Check for biological contaminants in the circulating fluid

Describe corrective measures taken

Lock-out the gas supply to the unit

Lock-out the electrical power to the unit

Brush the media lightly with a soft bristle brush while flushing with water

Is there a large amount of mineral build-up?

Action for large mineral build-up

Is the replacement media from the same manufacturer?