Warm Floors, Comfy Home.

The York® Affinity™ YACT provides comfortable and efficient forced air heating and cooling while also offering a radiant floor heat function. Now you can enjoy the comfort of warm floors in the basement and bathrooms while taking advantage of the savings associated with geothermal forced air for the rest of your home. The YACT does it all in one convenient package.


Geothermal heat pumps are much more efficient than traditional heating and cooling systems. The York Affinity YACT is rated with a 25.7 EER and 4.2 COP, which makes it one of the most available.

All-in-One with radiant heating

The YACT will provide heating, cooling, supplemental domestic hot water, and even radiant floor heating - all from a single unit. A variety of sizes 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.

Affordable peace of mind

York® Affinity™ YACT units come with warranties up to 10 years for parts and labor allowances. Other options are available, so see your York® Contractor for details.

Radiant Heating Capability

In addition to forced air heating and cooling, the YACT also offers the capability for in-floor radiant heat—all in one unit.

Blower Motor

A variable-speed ECM blower motor allows the unit to provide even comfort, quiet operation, and energy savings.

Hot Water Assist

The YACT features an optional hot water assist for domestic water. It utilizes any excess energy pulled from the earth to preheat your water and deliver it to your water heater.


A durable powder-coat finish is standard for long lasting beauty and protection. The unit is fully insulated with a cleanable, foil backed insulation and helps provide quiet operation.

Coated Air Coil

A corrosion resistant air coil increases equipment life. Its large size improves efficiency and provides better dehumidification during cooling.

Drain Pan

Electronic overflow protection is included to eliminate the possibility of condensate flooding. The drain pan is corrosion-proof and resists bacterial growth.


High efficiency scroll compressors are featured in the YACT Series for superb efficiency and reliability.


Added reliability and simple troubleshooting are accomplished through sophisticated microprocessor controls. Service messages are displayed through the thermostat.


This optional soft starter reduces start-up amperage by up to 60% of normal draw to reduce noise, eliminate light flicker, and increase compressor life.

LED Status Lights

Externally mounted status lights indicate normal operation or display faults and assist in troubleshooting.

Factory Quality

Quality checks are performed throughout the assembly process, and computer run-testing is done on every unit to ensure flawless startup and long-term reliability.


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

Dual Capacity Compressor
Proprietary Coating
Fan Motor
Variable Speed ECM Blower Motor
Hot Water Generation 
Optional - External mount pump
MERV 11 filter
Up to 10-Year Parts and Labor Allowance
3-6 ton
Efficiency Rating
23.7 EER / 4.3 COP
Energy Star