The Lennox 25V02 uncased aluminum upflow evaporator coil is engineered for high-efficiency R-454B dedicated systems in residential and light commercial applications. Designed for 4 to 5 ton cooling capacities, this CK40 / CK40UT-50/60C coil uses an R454B-optimized TXV to ensure precise refrigerant control, stable operation, and improved seasonal efficiency. Its durable aluminum construction provides excellent corrosion resistance, reduced maintenance, and long service life. Ideal for new installations or equipment upgrades requiring compatibility with modern low-GWP refrigerants.

 

Key Features:

• Compatible with 4 to 5 ton cooling systems
• R-454B dedicated design for modern low-GWP refrigerants
• TXV included for accurate refrigerant metering and improved efficiency
• Uncased aluminum coil for durable, corrosion-resistant performance
• Upflow configuration for easy installation in vertical HVAC setups
• Suitable for CK40 and CK40UT-50/60C applications

 

Specifications:

 

• Application: Upflow evaporator coil
• Refrigerant Type: R-454B dedicated
• Cooling Capacity: 4 to 5 tons
• Coil Type: Uncased aluminum coil
• Metering Device: Factory-installed TXV for R-454B
• Compatibility: CK40 and CK40UT-50/60C models
• Configuration: Upflow (vertical)
• Material: All-aluminum construction for corrosion resistance
• Refrigerant Circuit: Optimized for low-GWP refrigerant performance
• Use Case: Residential or light commercial HVAC systems
• Installation: For use with R454B condensing units and air handlers
• Efficiency Support: Provides stable refrigerant control and improved SEER2 performance
• Maintenance: Aluminum design reduces risk of formicary corrosion
• Coil Orientation: Suitable for furnace-mounted vertical applications