Copeland 918-0056-21 Crankcase Heater 480V

The Copeland 918-0056-21 Crankcase Heater 480V is a component whose necessity can never be underestimated if one wants their Copeland 918-0056-21 refrigeration compressors in HVAC systems to last longer and lack reliability issues. This 480V AC powered heater has a power rating of 120 watts. This heater is placed near the crankcase and ensures that the lubricant remains within the optimum limits as well as preventing refrigerant migration during times when it is idle or when cold weather sets in. The crankcase temperature is kept higher than the boiling point of the refrigerant in order to reduce risks of damage from liquid slugging and to prevent liquid refrigerant from entering into the compressor on startup.