Trane Modular Air Handler M-Series TEM4A0C48S41SC

Type K cooling coils have removable headers for cleaning every three to six months

Note: Apply washers under the bolt heads. Bolts should be evenly tightened to 50 foot-pounds of torque, beginning in the center and working toward the outside

Enter the torque applied to the bolts

Sign off on the cooling coils cleaning

Inspect the unit casing for corrosion. If damage is found, clean and repaint the surface with a rust-resistant primer and vinyl chlorinated lacquer

Clean the fan wheels and fan shaft

Check damper linkages, set screws, and blade adjustment. Clean, but do not lubricate, the nylon damper rod bushings

Inspect electrical components and insulation

Rotate the fan wheel and check for obstructions in the fan housing. The wheel should not rub on the fan housing. Adjust the center if necessary and tighten wheel set screws to the proper torque

Lubricate motor bearings in accordance with motor manufacturer’s recommendations

CAUTION: Bearing Failure! Do not mix greases with different bases within the bearing. Mixing grease within the bearing may result in premature bearing failure

Table 19 on page 58 provides bearing set screw torque measurements

Ensure the grease used in electric motor bearings is not mixed with the grease used in fan bearings

See Table 21 for compatible greases and Table 22 for maximum grease capacity

Lubricate the bearing according to the motor manufacturer's recommendations and use the manufacturer-recommended grease

Refer to Table 23 for minimum torque of motor mounting and bearings bolts

Ensure fan bearings without lubrication lines are sealed bearings

Ensure fan bearings equipped with lubrication lines are lubricated with a lithium-based grease that conforms to NLGI No. 2 for consistency

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

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?