Daikin-McQuay TX3N4 TXV

The Daikin-McQuay TX3N4 TXV is a thermostatic expansion valve service component designed for R-410A HVAC systems. The TX3N4 is identified as a 3-ton non-bleed R-410A TXV kit, with applications commonly covering the 2.5 to 3 ton capacity range.

The valve regulates liquid refrigerant flow into the evaporator according to system operating conditions. Proper refrigerant metering helps maintain the required evaporator superheat and supports efficient heat transfer as system load changes.

The TX3N4 R-410A expansion valve is intended for compatible Daikin and McQuay equipment where this specific TXV is called for. Contractors should verify the complete equipment model and serial number before ordering. TXV selection should not be based on tonnage alone because refrigerant type, evaporator coil design, and equipment configuration must also match.

Key Benefits

• Manufacturer: Daikin-McQuay
• Part Number: TX3N4
• Product Type: Thermostatic Expansion Valve (TXV)
• Refrigerant: R-410A
• Application: 2.5–3 Ton
• Nominal Capacity: 3 Ton
• Configuration: Non-Bleed
• Controls refrigerant flow into the evaporator
• Helps maintain proper evaporator superheat
• Responds to changing system load conditions
• Designed for compatible Daikin-McQuay HVAC equipment

Common Questions

What refrigerant is the TX3N4 designed for?
The TX3N4 is designed for R-410A refrigerant systems.

What tonnage is the Daikin-McQuay TX3N4 used with?
It is commonly listed for 2.5 to 3 ton applications, with Daikin documentation identifying it as a 3-ton TXV kit.

Is the TX3N4 a non-bleed TXV?
Yes. The TX3N4 is identified as a non-bleed R-410A thermostatic expansion valve kit.

Can I select this TXV based only on system tonnage?
No. Always verify the equipment model and serial number. Refrigerant type, evaporator coil, capacity, and system configuration must match the TXV application.

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.

TX3N4 is the cross for 0151M00074