Lennox Refrigerant Detection System (RDS) Air Handler Sensor Kit
Cat # : 27J27
Model/Part # : 627407-01
This product is used in several different models.
Product Overview
Lennox offers a line of products that are compliant with 2025 EPA regulations for lower global warming potential (GWP) refrigerants. The Lennox choice of 2025 Compliant Refrigerant has a lower GWP than its predecessor and is formulated to provide excellent, reliable performance of your system for years to come. For more information visit 2025 Compliant Refrigerant Information.
All systems using the Low GWP refrigerant must be paired with a Refrigerant Detection System (RDS), which includes an RDS Sensor Kit and an RDS Blower Control Board.
This RDS Communicating Control Board is designed and tested specifically for Lennox Communicating systems.
Please refer to the Coil and AHU Flyer for ordering RDS components and installing the refrigerant versatile coils and air handlers.