Trane Modular Air Handler M-Series TEM6A0C36H

Belts readjusted without overtightening?

Fan belt tension checked three times during the first days of operation?

CAUTION: Belt Tension! Do not over-tension belts. Excessive belt tension will reduce fan and motor bearing life, accelerate belt wear and possibly cause shaft failure. Under tensioning belts is the primary cause of premature belt failure. Belts should not squeal at startup.

Belt tension rechecked after 8 hours, 24 hours, and 100 hours of operation and monthly thereafter?

Proper belt tension ensured based on motor horsepower requirement?

If the drive is changed from the original, proper belt tension estimated?

Correct operation tension for a V-belt drive ensured?

Unit observed weekly for any change in running condition and unusual noise?

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

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

Open any variable-air-volume terminals connected to the air handler

Operate the supply fan for 10 to 15 minutes

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

Warning: Use care in removing header plugs from Type P2, P4, and P8 coils. Over-torquing may result in twisted tubes

Remove the vent and drain plugs

Blow the coil out as completely as possible with compressed air

Fill and drain the coil several times with full strength glycol so that it mixes thoroughly with the water retained in the coil

Drain the coil out as completely as possible

To ensure no water remains in the coil, do not replace the vent and drain plugs until the coils are put back into service