Description
The Daikin-McQuay 112056402 is a genuine OEM crankcase heater engineered to protect compressor integrity in Daikin-McQuay HVAC systems. Operating at 120 volts and rated at 70 watts, this crankcase heater maintains the compressor oil at an elevated temperature during off cycles, preventing refrigerant from migrating into and diluting the lubricating oil — a leading cause of compressor failure and reduced system efficiency.
Installing a properly rated crankcase heater is a critical preventive maintenance measure for any commercial or residential refrigeration or air conditioning system. By keeping the oil warm, it ensures proper lubrication is available immediately upon compressor startup, reducing wear and extending the service life of the compressor.
Key Features
- Genuine Daikin-McQuay OEM replacement part
- Operating voltage: 120V
- Power rating: 70 Watts
- Prevents refrigerant migration into compressor oil during off cycles
- Reduces compressor wear at startup for extended equipment life
- Direct OEM replacement for compatible Daikin-McQuay equipment
Application
Designed as a direct OEM replacement for compatible Daikin-McQuay HVAC and refrigeration equipment. Always verify compatibility with your specific unit model before installation. Consult the equipment service manual or contact your Daikin-McQuay distributor to confirm fitment.
Why Crankcase Heaters Matter
During extended off periods — especially in cold ambient conditions — refrigerant can migrate to the compressor sump and dissolve into the oil. When the compressor restarts, this refrigerant-oil mixture can cause slugging, foam, and accelerated bearing wear. A crankcase heater eliminates this risk by continuously warming the oil reservoir, ensuring reliable, long-lasting compressor operation.
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