McQuay Daikin 300047537 Valve

As a seasoned technician, you know that maintaining precise superheat is non-negotiable for system longevity. The McQuay Daikin 300047537 3 Ton Expansion Valve is a high-performance thermostatic expansion valve (TXV) engineered to regulate refrigerant flow with extreme accuracy. Built for 3-ton HVAC systems, this OEM Daikin replacement part features 1/2" x 1/2" ODF solder connections and a 5-foot capillary tube, ensuring the sensing bulb can be positioned optimally on the suction line. Utilizing a B30 bulb charge, this valve provides a responsive refrigerant flow control mechanism that protects the compressor from liquid slugging while maximizing evaporator efficiency. Whether you are performing a commercial HVAC repair or an industrial chiller maintenance task, the 300047537 delivers the reliable modulation required for high-efficiency air conditioners and heat pumps. This Daikin 3-ton TXV is the professional choice for restoring factory-spec performance in McQuay and Daikin equipment.

Key Benefits:

• Precise Superheat Control: The B30 charge and 5' capillary design ensure rapid response to load changes, maintaining optimal evaporator saturation.
• OEM Compatibility: Specifically designed as a direct Daikin 300047537 replacement for seamless fitment in 3-ton units.
• Durable Construction: High-grade materials designed to withstand the high-pressure demands of modern refrigerants in industrial HVAC applications.
• Optimized Efficiency: Improves system SEER/EER by preventing starved or flooded evaporator conditions.

Common Questions:

What are the connection sizes for the Daikin 300047537?
This valve uses 1/2 inch by 1/2 inch ODF (Outside Diameter Female) sweat connections for a secure, leak-free installation in the refrigerant line.

Can this TXV be used in both cooling and heat pump applications?
Yes, the McQuay 300047537 is designed for 3-ton systems and is compatible with both standard air conditioning and heat pump cycles, provided the capacity and refrigerant type match the system specifications.

How long is the capillary tube on this expansion valve?
The valve is equipped with a 5-foot (60-inch) capillary tube, offering ample length for proper bulb placement on the suction manifold to ensure accurate temperature sensing.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.