Ductless A/C and Heating Units

Our heating and ductless air conditioner system works as part of a multi-split unit. This ductless heating and cooling system offers flexible mounting options and versatile, high-efficiency heating and cooling for precise comfort with minimum ductwork.

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Efficiency(%): 16 SEER


Ductless System

Composed of three main components—an indoor unit consisting of a coil and a fan, an outdoor compressor unit and a remote control—most ductless A/C and heating units are connected by refrigerant lines and require minimum ductwork. This heating and ductless air conditioner system can be mounted on the wall or in the ceiling.

Efficient Comfort

Trane’s ductless A/C and heating units have Seasonal Energy Efficiency Ratings (SEER) ranging from 16.00 to 22.00, making our ductless heating and cooling systems remarkably efficient and environmentally friendly.

Quiet Operation

Specially designed air vents efficiently reduce sound to provide quiet comfort as low as 26db, for whisper-quiet operation.

Design Flexibility

Since there is minimum ductwork to install, it’s easy to add Trane’s reliable ductless heating and cooling to any home, in any room desired. It’s an economical and efficient option for homes without an existing ducted system or when adding extensive ductwork may be impractical or too expensive.

Every Trane heating and ductless air conditioner system consists of an indoor and an outdoor unit. Trane indoor units feature:

Quiet Operation

Specially designed air vent efficiently reduces operation noise to provide quiet comfort, as low as 29 dB.

Fresh Air Supply

Designed to exchange fresh air from outside to indoors improving the air quality of the room.

Compact Design

The compact construction and simple structure make the cassette and concealed models easy to install and maintain.

Built-in Drain Pump

Easily drain condensation from either unit with the built-in drain pump. The maximum drain pipe height is 3.3 feet (1 m).


You set the time for the unit to operate automatically when you want.

Wireless remote control

Each ductless heating and air conditioning unit is controlled with a wireless remote control (purchased separately) so you can easily control your system from anywhere in the room. The "I feel" function enables the system to sense temperature at the remote control, rather than a thermostat.

4MXD8 Ductless Heating and Cooling Systems

4MXD8 Cooling BTUH Heating BTUH SEER
4MXD8509A10N0AA 8,500 9,500 16
4MXD8512A10N0AA 11,900 13,100 16
4MXD8518A10N0AA 15,300 18,700 16
4MXD8521A10N0AA 20,400 22,600 16
4MXD8524A10N0AA 23,800 27,400 16

Trane 4MXD8 Registered Limited Warranty Details

5-year Registered Limited Warranty on compressor and functional parts.

If the product is not registered within 60 days of installation, Trane’s Base Limited Warranty terms will apply.

Optional Extended Warranties are available. Extended Warranties can pay for labor and other costs not covered by manufacturer's limited warranty.

Ask your dealer for full warranty information at time of purchase. Warranties are for residential use only. Some exclusions may apply.

Register within 60 days of installation to activate warranty. Residential use only. Some exclusions may apply. Call 1-800-554-6413 or Register Online.