Trane Modular Air Handler M-Series TEM4B0C37M31SA

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

Inspect coils for dirt build-up

Disconnect all electrical power to the unit

Use a soft brush to remove loose debris from both sides of the coil

Install a block-off to prevent spray from going through the coil and into a dry section of the unit and/or system ductwork

Mix a high-quality coil cleaning detergent with water according to the manufacturer’s instructions

Place the mixed solution in a garden pump-up sprayer or high-pressure sprayer

Maintain minimum nozzle spray angle of 15 degrees

Spray perpendicular to the coil face

Keep the nozzle at least 6 inches from the coil

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?

Kept the new bag filters folded and slid each filter into the filter rack, pushing them tightly against the unit?

Note: The pleats should be in the vertical position

If using the optional pre-filters, replaced them on the appropriate filter rack?

If fixed and adjustable block-offs are provided with the unit, 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

Closed and secured the access door?

CAUTION: Coil Freezeup! Properly drain and vent coils when not in use. Trane recommends glycol protection in all possible freezing applications. Use a glycol approved for use with commercial cooling and heating systems and copper tube coils. Failure to do so may result in equipment damage

Flush the coil with glycol if coils will be exposed to temperatures below 35 degrees

Install field-fitted drains and vents to permit winterization of coils not in use and to assist in evacuating air from the water system during startup

If draining is questionable because of dirt or scale deposits inside the coil, fill the coil with glycol before the heating season begins

Enter the Service Model No of Coil

Winterize all coils in a given coil module

Sign off on the coil winterization

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. Failure to secure drive sheaves or disconnect power before servicing could result in death or serious injury.

Disconnect all electrical power to the unit

Wearing the appropriate personal protective equipment, remove any contamination

Vacuum the section 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

Immediately rinse the affected surfaces thoroughly with fresh water and a fresh sponge to prevent potential corrosion of metal surfaces

Allow the unit to dry completely before putting it back into service

Be careful any contaminated material does not contact other areas of the unit or building. Properly dispose of all contaminated materials and cleaning solution

Inspect fan motors periodically for excessive vibration or temperature