Daikin-McQuay 300047539 1/2×1/2″ 4 Ton Thermostatic Expansion Valve

Description

The Daikin-McQuay 300047539 is an OEM thermostatic expansion valve (TXV) engineered for precise refrigerant flow control in 4-ton HVAC systems. Featuring 1/2″ inlet and 1/2″ outlet connections, this valve delivers accurate superheat regulation to protect compressors and maximize system efficiency. Designed as a direct replacement for compatible Daikin-McQuay equipment, it ensures a reliable, drop-in fit with no field modifications required.

Key Features

• OEM Daikin-McQuay replacement thermostatic expansion valve
• 4-ton system capacity
• 1/2″ inlet x 1/2″ outlet connection size
• Precise superheat control for optimized refrigerant metering
• Protects compressor from liquid slugging and overheating
• Direct drop-in replacement for compatible Daikin-McQuay units
• Durable construction for long-lasting, reliable performance

Product Specifications

• Brand: Daikin-McQuay
• Part Number: 300047539
• Valve Type: Thermostatic Expansion Valve (TXV)
• Capacity: 4 Ton
• Inlet Connection: 1/2″
• Outlet Connection: 1/2″

Application

This TXV is designed for use in Daikin-McQuay residential and light commercial split systems and packaged units rated at 4 tons. It meters liquid refrigerant into the evaporator coil based on superheat feedback from the sensing bulb, maintaining optimal evaporator performance across varying load conditions. Always verify compatibility with your specific equipment model before installation.