Trane Modular Air Handler M-Series TEM4A0C48S41SC

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

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

CAUTION: Microbial Growth! 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.

WARNING: Hazardous Voltage! 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.

WARNING: Hazardous Chemicals! Coil cleaning agents can be either acidic or highly alkaline. Handle chemical carefully. Proper handling should include goggles or face shield, chemical resistant gloves, boots, apron or suit as required. For personal safety refer to the cleaning agent manufacturer's Materials Safety Data Sheet and follow all recommended safe handling practices. Failure to follow all safety instructions could result in death or serious injury.

Is the internal insulation clean and dry?

Is there evidence of contamination in either the wet or dry sections?

Is there microbial growth on a non-porous insulating surface?

Is the drain line open following the cleaning process?

Is the unit dry before putting it back into service?

Are all panels and parts replaced and electrical power restored to the unit?

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.

When possible, disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing.

Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized.

When necessary to work with live electrical components, have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks.

Failure to follow all of the recommended safety warnings provided, could result in death or serious injury.

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.

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.

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.

Fan sections of air handlers inspected?

Evidence of microbial growth (mold) found?

If evidence of microbial growth (mold) is found, identify and remedy the cause immediately.

All electrical power to the unit disconnected?

Appropriate personal protective equipment worn?

Section vacuumed 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?

Any contaminated area(s) thoroughly cleaned with a mild bleach and water solution or an EPA-approved sanitizer specifically designed for HVAC use?