Copeland 918-0518-02 Crankcase Heater 200W 480V

The Copeland 918-0518-02 Crankcase Heater is an electrical device with a power rating of 200 watts and 480 volts that maintains a predetermined temperature in the crankcase of the refrigeration or air conditioning system compressor. When doing so it can prevent the compressor oil from becoming too viscous during the off-cycle especially within cold climates through conversion of electrical current to heat. Increased friction and wear on compressor components due to thickened oil leads to reduced efficiency and duration. In addition, crankcase heaters are essential in preventing condensation formation inside the crankcase which can lead to corrosion. Generally, they are installed on the outside surface of a compressor crankcase where they rely on conduction for their thermal transfer; these devices are most often utilized in commercial refrigeration systems as well as air conditioning units which are located amidst low temperatures.