The FK4 fan coil, working with your heat pump or air conditioner, provides premium comfort and superior efficiency with its variable speed operation. The Electronically Commutated Motor (ECM) and Easy Select Board combine to generate noticeably warmer air during the heating season than a standard heat pump system. During the summer months, the FK4 can be teamed up with Carrier's Thermidistat^TM Control to enhance your comfort by removing up to 30 times more humidity from the air in your home than a standard heat pump system. One of the quietest fan coils available, the FK4 almost silently improves your comfort so you can enjoy the peace and quiet of custom made indoor weather year after year.

For truly remarkable comfort all year long, create an IdealHumidity System with the addition of a humidifier, our exclusive Thermidistat^TM Control and a Carrier air conditioner or heat pump. The Carrier IdealHumidity System works all day and all night to control both temperature AND humidity for the ultimate in comfort. Other systems rely on heating or cooling to control humidity. IdealHumidity from Carrier is the ONLY system that controls humidity even when the indoor temperature does not require heating or cooling operation. Ask your Carrier dealer for details.

Carrier designed the FK4 fan coil to increase the performance of your heat pump or air conditioner. Offering superior comfort and extra energy efficiency, the FK4 fan coil is an excellent component of any indoor weather system. It is driven by a variable speed ECM motor that slowly and gradually gains the speed needed to keep you comfortable, eliminating operational noise and hot or cold blasts from the registers. Plus the continuous fan mode allows you to keep air circulating when you're not heating and cooling your home. The result is enhanced comfort. It can actually improve the efficiency ratings of most air conditioning and heat pump systems. The heavy-duty insulation and ECM motor reduce the operational noise so you can relax in quiet comfort. Relay controlled heaters provide additional heat during extreme winter weather and the Thermostatic Expansion Valve (TXV) improves energy efficiency and reduces operating costs with precise refrigerant control.

The FK4 is an investment in your family's comfort. That's why we build our equipment to last. The FK4 fan coil is designed to deliver long-lasting comfort with Carrier's high-quality components. The sturdy cabinet construction protects the entire unit. The FK4 is a versatile, energy-efficient fan coil designed to increase the performance and longevity of your indoor weather equipment. Ask your Carrier dealer about custom made indoor weather for your home.