Description
The Daikin-McQuay 031780500 is an OEM replacement TXV (Thermostatic Expansion Valve) power head featuring a 5-foot capillary tube, engineered to restore precise refrigerant metering performance in compatible Daikin-McQuay commercial HVAC and refrigeration systems.
Product Overview
The power head is the sensing and actuating assembly of a thermostatic expansion valve. It responds to suction line temperature changes detected by the remote bulb and capillary, modulating refrigerant flow to maintain proper superheat at the evaporator outlet. Replacing a worn or failed power head — rather than the entire TXV assembly — is a cost-effective way to restore system efficiency and protect the compressor from liquid slugging or excessive superheat.
Key Features
- OEM Daikin-McQuay replacement power head for compatible TXV assemblies
- 5-foot capillary tube for flexible remote bulb placement
- Designed for precise superheat control and stable refrigerant metering
- Direct OEM replacement for reduced installation time
- Helps protect compressor from liquid slugging and high superheat conditions
Application
- Compatible with select Daikin-McQuay commercial HVAC and refrigeration equipment
- Suitable for use in systems requiring TXV power head replacement
- Verify compatibility with your specific unit model before ordering
Why Choose OEM Parts?
Using genuine Daikin-McQuay replacement components ensures proper fit, function, and system reliability. OEM parts are manufactured to the same specifications as the original equipment, minimizing the risk of compatibility issues and callback visits.
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