Description
The Copeland 918-0028-17 is a genuine OEM crankcase heater engineered to protect Copeland scroll compressors from the damaging effects of refrigerant migration and liquid slugging. By maintaining the compressor crankcase at an elevated temperature during off-cycles, this heater prevents liquid refrigerant from accumulating in the compressor oil, safeguarding critical internal components and extending compressor service life.
Why Crankcase Heaters Matter
During extended off-cycles — especially in cold ambient conditions — refrigerant can migrate into the compressor crankcase and mix with the lubricating oil. When the compressor restarts, this refrigerant-oil mixture can cause violent foaming, oil loss, and mechanical damage. A properly functioning crankcase heater eliminates this risk by keeping the oil warm and refrigerant-free, ensuring reliable start-ups and long-term compressor health.
Key Features
- Genuine Copeland OEM replacement crankcase heater
- Designed specifically for compatible Copeland scroll compressor models
- Prevents refrigerant migration into crankcase oil during off-cycles
- Reduces risk of liquid slugging and compressor damage on startup
- Helps maintain proper oil viscosity and lubrication integrity
- Direct OEM fit for simplified installation and reliable performance
Application
This crankcase heater is intended for use with compatible Copeland compressors in commercial and residential HVAC and refrigeration systems. Always verify compatibility with your specific compressor model before installation. Consult the Copeland product documentation or your distributor for cross-reference and application guidance.
Installation Notes
- Energize the crankcase heater for a minimum of 12–24 hours before initial compressor startup
- Ensure heater is de-energized only when the compressor is running
- Follow all applicable local electrical codes and manufacturer guidelines during installation
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