Trane VAL19949 Thermostatic Expansion Valve 3 Ton R410A 3/8" x 1/2"

The Trane VAL19949 is a thermostatic expansion valve (TXV) designed for residential and light commercial HVAC systems using R410A refrigerant. This precision-engineered valve regulates refrigerant flow into the evaporator coil, ensuring optimal system efficiency and performance for 3-ton cooling applications.

Key Specifications:

• Cooling capacity: 3 tons (36,000 BTU/hr)
• Refrigerant type: R410A
• Inlet connection: 3/8" ODF (flare)
• Outlet connection: 1/2" ODF (flare)
• Brass construction for durability and corrosion resistance
• Factory-calibrated power assembly for precise superheat control

Features & Benefits:

• Maintains proper superheat to protect compressor from liquid slugging
• Improves system efficiency by optimizing refrigerant flow
• Direct OEM replacement for Trane and American Standard systems
• Compatible with air conditioning and heat pump applications
• Reduces temperature fluctuations for improved comfort

This TXV is a critical component in maintaining proper refrigerant charge and system performance. The valve automatically adjusts refrigerant flow based on evaporator load conditions, ensuring consistent cooling capacity while preventing compressor damage from improper refrigerant return.