The heat pump system contains a fan that forces room air through an evaporator (1). The evaporator contains a liquid refrigerant that extracts heat from the ambient air as it evaporates. As the refrigerant warms it changes into a gas.
The warm gaseous refrigerant passes through the compressor (2) which increases its pressure. As the pressure increases, the temperature of the refrigerant rises until the refrigerant becomes hot.
The hot refrigerant then passes through the condenser (3), which is wrapped around the water tank. Because heat travels from hot to cold, the refrigerant transfers its heat to the water.
The refrigerant, which is now super-cool liquid, then passes through an expansion valve (4), where it becomes a gas again and the process begins anew.
The Accelera® uses environmentally-friendly R134a for its refrigerant.
Regional incentives for the Accelera® are available in many locations. The U.S. Department of Energy’s Database of State Incentives for Renewables & Efficiency website has up-to-date details at: http://www.dsireusa.org/