Trane Modular Air Handler M-Series TEM4A0C43M41SB

WARNING: Hazardous Service Procedures! The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical, mechanical or other potential safety hazards. Always refer to the safety warnings provided throughout this manual concerning these procedures.

WARNING: Rotating Components! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/ tagout procedures to ensure the power can not be inadvertently energized. Secure drive sheaves to ensure rotor cannot freewheel.

Clean or replace air filters if clogged or dirty; coat permanent filters with oil after cleaning; and, change bag filters when pressure drop is 1 in. wg

Relubricate fan bearings if necessary

Check and adjust fan belt tension

Sign off on the monthly air handler maintenance

Warning: Disconnect all electrical power to the unit before starting

Disconnected all electrical power to the unit

Removed the dirty filters and block-offs from their installed position

New bag filters slid into the filter rack, pushing them tightly against the unit

Note: The pleats should be in the vertical position

Using the optional pre-filters?

Replaced pre-filters on the appropriate filter rack

Slid the fixed block-offs into the filter track before the adjustable block-off

Note: The adjustable block-off should always be installed last, next to the access door

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

Refer to Table 19 on page 58 for bearing set screw torque measurements

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

Refer to 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

Check if 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

Steps to replace throwaway filters

Steps to clean permanent filters

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