Great balance of performance and price point.

The York® LX YLF benefits from technology that’s been refined through 30 years of research, engineering advancements, and manufacturing experience. The YLF utilizes two-stage scroll compressors and 5-speed ECM blowers to provide high efficiency performance and quiet operation—all at a great price point.


Geothermal heat pumps are much more efficient than traditional heating and cooling systems. The York® LX YLF is rated with an impressive 22.3 EER and 4.1 COP, which makes it one of the most efficient dual stage units on the market. Efficiency translates into savings.


One York® geothermal heat pump will provide heating, cooling, and supplemental hot water for your home. A variety of sizes and configurations are available, so no matter your home or climate, a geothermal heat pump will work for you.

Cost effective

Geothermal heat pumps are so efficient that any added cost over traditional equipment is usually recovered in just a few years. And because they have a lifespan of 20-25 years, your investment will last longer and your return on investment will grow year by year.

Environmentally responsible

Since our units don’t burn expensive, polluting fossil fuels, they’re the most environmentally responsible options available today. Replacing a furnace and/or air conditioner with geothermal can minimize acid rain threats, air pollution, and the greenhouse effect.


No combustion or flames are used to operate a geothermal heat pump, making it a safe choice for your home and family. Our systems merely move heat to and from the ground rather than by burning natural gas, propane, or oil.

Peace of mind maintenance

York® geothermal heat pumps are virtually maintenance free. When installed properly, the buried loop will last for generations. And the other half of the operation—the unit’s fan, compressor and pump—is housed indoors, protected from the harsh weather conditions.

Dual capacity compressor

Allows the unit to operate at two speeds rather than running at one high speed all the time. The LX™ YLF can operate more frequently in a lower speed to satisfy the needs of your home while saving energy.


Sophisticated Aurora controls provide easy-to-use but extensive troubleshooting capabilities as well as advanced two-way communication between components.

Blower motor

A 5-Speed ECM blower motor comes standard in the LX YLF to provide quiet operation, high efficiency, and comfort.

Aurora Interface Diagnostic port

Technicians can diagnose and service your system without even opening the unit by utilizing the external communication port and interface tool.


Lengthen the lifetime of your system and compressor with the optional IntelliStart soft starter. This accessory decreases start-up amperage by up to 70% and reduces light flicker.

Coated Coaxial Heat Exchanger

Coaxial heat exchanger life is extended by our proprietary coating that protects against condensation at temperatures below 50°F.

Hot Water Generation

A hot water assist option preheats your water and delivers it to your hot water heater. The longer the unit operates, the greater the amount of hot water generated.

All-Aluminum Air Coil

Aluminum air coils are standard in the YLF providing durability and extended system life.


A professional grade powder-coat finish provides long-lasting beauty and protection. The unit is fully insulated with cleanable foil-backed insulation that ensures quiet operation.

Flanges, Filter, and Filter Rack

High-strength duct flanges come standard, while optional MERV 8 filter with rack or rails is available.


All York® geothermal units utilize R-410A refrigerant, which is friendly to the environment.

Dual Capacity Compressor
All-aluminum Air Coil
Fan Motor
5-speed ECM Blower Motor
Aurora Base Controls
Hot Water Generation 
Optional - Internal mount pump
Optional MERV 8
5 Years Refrigeration Components/2 Years All Parts with option to buy-up to 5 Years on All Parts
2-6 ton
Efficiency Rating
22.3 EER / 4.1 COP
Energy Star
All Models