The Copeland 918-0043-01 Belt Crankcase Heater 70W 480V is a reliable heating accessory designed for Copeland compressors used in refrigeration and HVAC systems. It prevents refrigerant migration and oil dilution during off cycles by maintaining the proper temperature within the compressor crankcase. https://www.partshnc.com/belt-480v-70w-crankcase-htr