The Trane HTR15180 Crankcase Heater is a 90W, 200V heating component designed for compatible Trane HVAC systems. It mounts around or near the compressor crankcase and provides controlled heat to keep refrigerant and compressor oil warm during shutdown periods. Commonly used in air conditioners, heat pumps, and refrigeration equipment, it helps reduce refrigerant migration and oil dilu... https://www.partshnc.com/trane-htr15180-crankcase-heater-200v-90w