Aaon Packaged Rooftop Unit RNA-040-D-0-3-HABT-00A

Confirm that a qualified service technician is performing the inspection

Inspection of Flue Product Carrying Areas

Inspect all flue product carrying areas of the furnace for blockages or damage

Are all flue product carrying areas in good condition?

Inspect main burners for proper operation and cleanliness

Are the main burners operating safely and efficiently?

Ensure the fan is not running and at normal operating temperature

Add grease to the bearings until seals are purged

Select the grease used for lubrication

Rinse the coil completely with water

Use a hard spray but be careful not to bend or damage the fins

Spray from the fan side of the coil

Spray and rinse the coil from the face

Is the water pressure below 689.5 kpa (100 psi)?

Is the nozzle 15.25 centimeters (6 in.) and perpendicular to the coil face?

Ensure the unit is turned off before starting

Shut off all electrical power to the unit to avoid shock hazard or injury from rotating parts

Select the allowed chemical cleaners to use

Ensure water pressure does not exceed 689.5 kpa (100 psi)

Maintain a minimum distance of 15.25 centimeters (6 inches) from the coils while cleaning

Is the water aimed perpendicular to the coils?

Inspection of Purge Sector Condition

Check the condition of the purge sector

Verify the rigidness of the purge sector

Measure the distance of the sector against the recovery wheel matrix

Is the distance within the acceptable range?

Use compressed air to clean the purge sector if required