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AAON M3 Series Indoor Air Handlers Unit Yearly Maintenance

The AAON M3 Series Indoor Air Handlers Unit Yearly Maintenance is a standard procedure that checks the operation quality of the machines components. Maintain the quality of you Air Handler by following this procedure.
MaintainX
04/26/2021

AAON M3 Series Indoor Air Handlers Unit Yearly Maintenance

79 steps
The AAON M3 Series Indoor Air Handlers Unit Yearly Maintenance is a standard procedure that checks the operation quality of the machines components. Maintain the quality of you Air Handler by following this procedure.
  • Blower Assembly

  • Coils/Drain Pans

  • E-Coated Coil Cleaning

  • WARNING! Electric shock hazard. Shut off all electrical power to the unit to avoid shock hazard or injury from rotating parts

  • CAUTION! High velocity water from a pressure washer or compressed air should only be used at a very low pressure to prevent fin and/or coil damages. The force of the water or air jet may bend the fin edges and increase airside pressure drop. Reduced unit

  • CAUTION! Harsh chemicals, household bleach, or acid cleaners should not be used to clean outdoor or indoor e-coated coils. These cleaners can be very difficult to rinse out of the coil and can accelerate corrosion and attack the e-coating. If there is dir

  • Recommended Coil Cleaner

  • The following cleaning agent, assuming it is used in accordance with the manufacturer’s directions on the container for proper mixing and cleaning, has been approved for use on e-coated coils to remove

  • Recommended Chloride Remover

  • Remove Barrier

  • Apply CHLOR*RID DTS

  • Rinse

  • Winterizing Coils

  • Removing Coils

  • CAUTION!Take care that the coil is not dropped or knocked over. This could damage the coil fins, or cause a leak in the coil.

  • Figure 35 - Coil Removal

  • Doors/Panels

  • Note: For safety, inside-opening doors are used in positive pressure sections and outside-opening doors are used in negative pressure sections. The opening direction of doors cannot be changed.

  • WARNING! Shut off power to unit and wait for fans to stop turning before removing an access panel. To make sure the unit is not pressurized, open door opposite the access panel. Serious injury can result from removing a panel under positive pressure.

  • Figure 36 - Access Door/Panel Removal

  • Outside Opening Door and Panel

  • Figure 37 - Access Door

  • Filters

Source: Aaon