Trane Modular Air Handler M-Series ТЕМ6АОВЗОН

The process of cooling and dehumidification produces condensate that must be continuously removed from the air-handling unit. The section of the unit from the entering air side of the cooling coil to the leaving edge of the drain pan is considered to be the "wet" section of the unit. Other potentially "wet" sections are immediately downstream of a humidifier and/or an outside air intake section

Wet interior unit insulation can become an amplification site for microbial growth (mold), which may cause odors and damage to the equipment and building materials. If there is evidence of microbial growth on the interior insulation, the insulation should be removed and replaced prior to operating the system

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/ tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury

Did you close the outdoor air dampers?

Did you turn off the cooling coil?

Did you open any variable-air-volume terminals connected to the air handler?

Did you operate the supply fan for 10 to 15 minutes?

Did you rotate inlet guide vanes full open to full close?

Note: Air movement discourages water condensation and hastens re-evaporation of any condensate that does happen to form. This simple preventative measure effectively combats microbial growth and curbs moisture-related deterioration of air-handling components.

Sign off on the air handler maintenance

Check fan bearing grease line connections. Lines should be tight to the bearings

Check bearing and motor bracket bolt torque and bearing setscrew torque

Align fan and motor sheaves. Tighten sheave set screws to the proper torque

Inspect coils for dirt build-up

Inspect and clean drain pans every three to six months

WARNING: No Step Surface! Do not walk on the sheet metal drain pan. Walking on the drain pan could cause the supporting metal to collapse. Failure of the drain pan could result in death or serious injury

The condensate drain pan and drain line must be checked to assure the condensate drains as designed. This inspection should occur a minimum of every six months or more often as dictated by operating experience

If evidence of standing water or condensate overflow exists, identify and remedy the cause immediately

Disconnect all electrical power to the unit

Wearing the appropriate personal protective equipment, remove any standing water

Scrape solid matter off of the drain pan

Vacuum the drain pan with a vacuum device that uses high-efficiency particulate arrestance (HEPA) filters with a minimum efficiency of 99.97 percent at 0.3 micron particle size

Thoroughly clean any contaminated area(s) with a mild bleach and water solution or an EPA-approved sanitizer specifically designed for HVAC use

Warning: Ensure to wear appropriate PPE during the cleaning process.

Tubes cleaned with a nylon or wire brush if fouled?

Note: Do not replace the header covers until the coils are put back into service to ensure no water remains in the coil.

New gaskets used when the coils are put back into service?

Enter the torque applied to the bolts (ft-lbs)