Lennox 11Y30 Thermal Expansion Valve Ton TXV - 4 R410A

The Lennox 11Y30 is a thermostatic expansion valve (TXV) designed for 4-ton residential and commercial HVAC systems using R410A refrigerant. This precision-engineered valve regulates the flow of refrigerant into the evaporator coil, ensuring optimal system performance and efficiency in air conditioning and heat pump applications.

Key Features:

• Designed for 4-ton capacity air conditioning and heat pump systems
• Compatible with R410A refrigerant (Puron)
• Thermostatic control maintains proper superheat for maximum efficiency
• Precision metering ensures consistent refrigerant flow
• Durable construction for reliable long-term performance
• Essential component for achieving 14 SEER or higher efficiency ratings

Thermal expansion valves are critical for maintaining proper system operation by automatically adjusting refrigerant flow based on cooling load demands. The 11Y30 provides superior temperature control while maximizing energy efficiency and preventing compressor damage from liquid refrigerant slugging. This genuine Lennox replacement part ensures compatibility and performance with Lennox HVAC equipment.