Carrier's FA4 fan coil combines with the heat pump or air conditioner to provide custom made indoor weather. As an integral part of a heat pump or an air conditioning system, Carrier's fan coils are designed to improve the airflow in your home and provide comfortable heating and cooling when you need it most. Matching your system with the proper Carrier fan coil will also enhance the heat transferring process so you can enjoy maximum comfort and energy savings. Available in an embossed cabinet for upflow, downflow and horizontal applications, the FA4 is a smart choice for homeowners who appreciate the comfort, reliability and overall value of Carrier products. 1.   Heavy-duty, foil-faced cabinet insulation results in quiet comfort, making your indoor weather even more ejoyable. 2.   Thermostatic Expansion Valve (TXV) precisely meters the system's liquid refrigerant, ensuring efficient, reliable operation. That transates into performance you can count on. 3.   Control Board manages the fan coil to ensure proper operation. 4.   Patented plastic drain pan allows condensate to drain completely, resulting in enhanced air quality. This also minimizes mold, mildew and corrosion. 5.   Copper tube, aluminum fin coils reliably transfer heat out of your home in the summer and release heat during winter to keep you comfortable regardless of the season. 6.   Durable motor moves air across the coil and into your home. Quiet comfort and corrosion resistance is the result of foil-faced insulation (not shown). This insulation reduces operational noise and prevents condensate build-up on the unit for added corrosion resistance and improved air quality. Enhanced performance of your outdoor unit can be attributed to the accurate refrigerant metering capabilities of our AccuRater~. Extra warm winters are yours to enjoy with our factory or field-installed electric resistance heaters. Durability and air quality are both improved with proper drainage through our corrosion-resistant pan.