Aaon HVAC Unit RN-006-1-0-CA

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

Filter Inspection and Replacement

Open access door and pull filters straight out to inspect all of the filters

Inspect the following filters for replacement

Replace filters with the size indicated on each filter or as shown in the tables below

Is the arrow on the replacement filters pointing towards the blower?

Ensure all access doors are securely closed after replacement

Check all electrical connections

Inspect the unit for any visible damage

Test the unit's operational functionality

Record any issues found during inspection

Verify that all safety features are operational

Check that all the parts are in place

Ensure the furnace is turned off and cool before inspection

Verify that the gas supply is shut off

Flue Product Carrying Areas Inspection

Inspect flue product carrying areas for blockages or damage

Are all flue product carrying areas in good condition?

Inspect main burners for signs of wear or damage

Measure the current sub-cooling temperature

Measure the current superheat temperature

Is the system overcharged or undercharged?

Is the sub-cooling temperature too high and evaporator fully loaded?

Reduce the amount of refrigerant in the system to lower the sub-cooling

Has the need for cleaning been confirmed by a qualified service agency?

Has consultation with an AAON Service representative been completed?

Ensure cleaning is performed by a qualified service agency.

Describe any issues identified during cleaning.

Is the unit operating correctly after cleaning?