Description
The Trane HTR71646 is an OEM crankcase heater engineered to protect refrigerant compressors from the damaging effects of refrigerant migration and liquid slugging during off-cycle periods. By maintaining a consistent heat level around the compressor crankcase, this heater helps ensure reliable startups and extends the service life of the compressor.
Key Specifications
- Brand: Trane
- Part Number: HTR71646
- Wattage: 70–75W
- Voltage: 460–480V
- Type: Crankcase Heater
Features & Benefits
- Prevents refrigerant migration into compressor oil during off cycles
- Reduces risk of liquid slugging and compressor damage at startup
- Designed for high-voltage commercial HVAC applications (460–480V)
- OEM Trane replacement part for precise fit and reliable performance
- Helps maintain compressor efficiency and longevity
Application
The HTR71646 is designed for use in commercial HVAC systems where compressor protection is critical. Operating at 460–480V, it is suited for three-phase commercial equipment commonly found in light commercial and commercial rooftop, split, and chiller applications. Always verify compatibility with your specific Trane equipment model before installation.







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