Trane HTR2047 Crankcase Heater 322056-301 High-Temperature Rating: Class B insulation

High-Temperature Rating: Class B insulation allows for reliable operation in high-ambient outdoor environments

Multi-Refrigerant Compatibility: Designed as an "All Range" control compatible with R-12

preventing costly refrigerant loss or fluid bypass

Universal Application Range: Optimized for open high / open low switching

Trane HTR2047 Crankcase Heater 322056-301 High-Temperature Rating: Class B insulationThe Trane HTR2047 Crankcase Heater is a critical 120V, 150W component designed for industrial and commercial compressor protection. This heater maintains high oil temperatures to prevent harmful refrigerant migration and condensation within the crankcase during system off cycles. By ensuring the oil remains at an optimal viscosity, it prevents liquid slugging and ensures immediate lubrication of bearings and rotors during startup, which is essential