Description
The Daikin-McQuay 070902801 is an OEM crankcase heater designed to protect compressors in Daikin-McQuay HVAC systems from the damaging effects of refrigerant migration and liquid slugging during off-cycle periods. By maintaining the compressor crankcase at an elevated temperature, this heater prevents refrigerant from condensing and mixing with compressor oil — a leading cause of premature compressor failure.
Key Features
- OEM Daikin-McQuay replacement crankcase heater
- Rated voltage: 120V
- Rated wattage: 90W
- Prevents refrigerant migration into compressor oil during off-cycles
- Helps extend compressor service life and reduce costly failures
- Direct OEM replacement for compatible Daikin-McQuay equipment
Why Crankcase Heaters Matter
Refrigerant migration occurs when the system is off and ambient temperatures cause refrigerant vapor to condense inside the compressor crankcase. When the compressor starts, this refrigerant-oil mixture can cause hydraulic slugging, oil foaming, and bearing damage. Installing a properly rated crankcase heater is a critical preventive maintenance measure recommended by compressor manufacturers.
Application
- Designed for use with compatible Daikin-McQuay commercial HVAC and refrigeration equipment
- Ideal for rooftop units, chillers, and other systems requiring crankcase protection
- Suitable for use in both new installations and as a direct replacement part
Specifications
- SKU: 070902801
- Brand: Daikin-McQuay
- Voltage: 120V
- Wattage: 90W
- Type: Crankcase Heater
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