Performance Climate Changer® Air Handlers Sizes 3-120 for Indoor and Outdoor Units - Yearly Maintenance Checklist

Maintenance checklist

• Inspect the unit casing for corrosion. If damage is found, clean and repaint.

• Clean the fan wheels and shaft. See “Fans,” p. 160 for more information.

• Inspect and clean drain pans.

• Check damper linkages, set screws, and blade adjustment. Clean, but do not lubricate, the nylon damper rod bushings.

• Clean damper operators.

• Inspect electrical components and insulation.

• Inspect wiring for damage.

• Rotate the fan wheel and check for obstructions. The wheel should not rub. Adjust the center if necessary.

• Lubricate motor bearings in accordance with motor manufacturer’s recommendations (see “Motor Bearing Lubrication,” p. 161 for more information)

• Check condition of gasketing and insulation around unit, door and dampers.

• Examine flex connections for cracks or leaks. Repair or replace damaged material.