Description
The Trane HTR9493 is a belt-type crankcase heater engineered to protect refrigeration compressors from the damaging effects of refrigerant migration during off-cycle periods. By maintaining the crankcase oil at a temperature above the surrounding ambient, this heater prevents liquid refrigerant from mixing with compressor oil — a leading cause of compressor failure and costly system downtime.
Why Crankcase Heaters Matter
During extended off cycles, refrigerant can migrate into the compressor crankcase and dilute the lubricating oil. When the compressor restarts, this refrigerant-oil mixture can cause slugging, bearing wear, and premature compressor failure. Installing a properly rated crankcase heater is one of the most cost-effective preventive maintenance steps an HVAC technician can take to extend compressor life.
Product Specifications
- Brand: Trane
- Part Number: HTR9493
- Heater Type: Belt Type
- Voltage: 460 Volts
- Wattage: 160 Watts
Key Features & Benefits
- Belt-type design wraps securely around the compressor crankcase for consistent, even heat distribution
- Rated at 460V to match commercial and light-industrial HVAC system electrical requirements
- 160-watt output provides reliable heating capacity to prevent refrigerant migration
- OEM Trane part ensures proper fit and performance on compatible Trane equipment
- Helps extend compressor service life and reduce the risk of costly compressor failures
- Easy field installation — wraps around the compressor body without special tools
Application
The HTR9493 is designed for use with compatible Trane commercial HVAC and refrigeration systems. Always verify compatibility with your specific equipment model before installation. Consult Trane documentation or your local distributor for approved applications.
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