Air Conditioner

With the XB300, you’ll find the quality, reliable performance you expect from a Trane system, in an entirely new compact design. There truly is a Trane for every home.

Find a dealer

Look for Savings & Offers in your area

Locate Energyguide Labels


One size doesn't always fit all—and neither does pricing. Visit our pricing page to learn more.


From ENERGY STAR® -qualified products to geothermal options, there are myriad ways for your HVAC system to be more energy and cost-efficient.

Efficiency (SEER):
up to 13.00

The energy savings mode automatically adjusts your thermostat to save both energy and money.

Energy Star:

Compact Design. Really Cool.

Durable construction and performance

Designed to be ultra-reliable year after year, the XB300 features Trane’s legendary Climatuff® compressor, known throughout the industry for its reliability. The XB300 also has the Trane Climatuff™ coil, made entirely of aluminum to resist corrosion from the elements.

Efficient performance

The XB300 offers one-third the refrigerant charge, which means it’s an environmentally friendly option. It also features Manual Charge Assist™, a Trane exclusive that helps ensure the most accurate refrigerant charge at installation, for optimum cooling performance and efficiency.

Economical operation and use of space

Increased efficiency may substantially lower home cooling costs. And since the XB300 is built to occupy a smaller footprint, it allows for easy installation even when space is at a premium.

Cleaner, healthier indoor air

Add Trane CleanEffects™ to your system for advanced air filtration that removes more dust, pollen and other irritants from conditioned air for a cleaner, healthier, more comfortable home.

Quick Comparison


50.0 Cost
82.5 Efficiency


30.0 Cost
72.5 Efficiency


20 Cost
65 Efficiency

Every Trane air conditioner is packed with high-quality components. Each helps ensure that time after time, your unit will provide total comfort your family can rely on. The XB300 includes:

Climatuff® compressor

All aluminum Climatuff™ coil

WeatherGuard™ fasteners

Glossy corrosion resistant finish

Heavy duty coil guard

Lighter, compact design

Manual Charge Assist™

XB300 air conditioner models (R-410A refrigerant)

Model Cooling Capacity (BTUH) Nominal Tons Height (in.) Width (in.) Depth (in.)
4TTM3018 18,000 1.5 29 25.5 23.5
4TTM3024 24,000 2 29 25.5 23.5
4TTM3030 30,000 2.5 29 25.5 23.5
4TTM3036 36,000 3 29 25.5 23.5
4TTM3042 42,000 3.5 29 29 28.5
4TTM3048 48,000 4 29 29 28.5
4TTM3060 60,000 5 29 29 28.5

Trane XB300 Registered Limited Warranty Details

To further its reliability, the XB300 comes with the Registered Limited Warranty of 10 years on the compressor, 10 years on the coil and 10 years on all other parts when registered within 60 days of installation.

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

An option to purchase transferability of your Registered Limited Warranty is available.

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

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