Description
The Copeland 918-0088-04 is a genuine OEM crankcase heater engineered to protect Copeland compressors from the damaging effects of refrigerant migration and oil dilution during off-cycle periods. By maintaining the crankcase at an elevated temperature, this heater prevents liquid refrigerant from mixing with compressor oil, ensuring reliable lubrication and smooth startups — especially in low-ambient or cold-weather installations.
Why Crankcase Heaters Matter
During compressor off cycles, refrigerant can migrate into the crankcase and dissolve into the lubricating oil. On startup, this refrigerant-oil mixture can cause slugging, bearing wear, and premature compressor failure. A properly functioning crankcase heater is a critical line of defense for any refrigeration or air conditioning system.
Key Features
- Genuine Copeland OEM replacement crankcase heater
- Designed to prevent refrigerant migration into compressor oil
- Helps ensure reliable cold-weather and low-ambient startups
- Reduces risk of compressor slugging and bearing damage
- Direct OEM fit for compatible Copeland compressor models
- Supports extended compressor service life and system efficiency
Applications
- Commercial and residential air conditioning systems
- Refrigeration equipment using Copeland compressors
- Heat pump systems in low-ambient environments
- Any application requiring crankcase oil temperature protection
Installation Notes
Always de-energize the system before replacing a crankcase heater. Allow adequate warm-up time (typically 4–12 hours) before starting the compressor after installation or after an extended shutdown period. Consult the Copeland compressor service manual for specific installation guidance and wattage requirements for your application.
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