Carrier 5H40381 Crankcase Heater 115 Volt 200 Watt

Carrier 5H40381 Crankcase Heater is a 115-volt, 200-watt heating assembly designed for Carrier's 5H open-drive compressors, specifically the 5H40, 5H46, 5H60, and 5H66 models. The heater element included in this package is HT31AR200, a 6-inch-long unit rated for 115V and 200W, built to fit inside the compressor crankcase. Its purpose is to prevent the accumulation of liquid refrigerant in the crankcase during shutdown, which can dilute the compressor oil and complicate cold-start operation. This accurately matched accessory is identified by Carrier as a crankcase heater package for the 5H family, ensuring compatibility with the listed model ranges and providing a reliable heat source to maintain crankcase temperature when the compressor is idle. In refrigeration and air conditioning installations that use Carrier 5H series compressors, including commercial and industrial systems, this 115V, 200W heater helps protect compressor health by maintaining a controlled crankcase environment during off cycles.