Johnson Controls T-4002-303 Conversion Kit R-410A Actuators must be purchased separately

Actuators must be purchased separately based on your specific signal requirement (0-10 Vdc or 24 Vac floating)

High Voltage Threshold: Rated for 440V

By monitoring liquid line temperature or pressure across up to three circuits

making it suitable for hazardous or high-spec commercial HVACR installations

Key Benefits Universal Compatibility: Serves as a direct Lennox replacement part for numerous Aire-Flo

Johnson Controls T-4002-303 Conversion Kit R-410A Actuators must be purchased separatelyThe Johnson Controls T 4002 303 Conversion Kit is a professional grade solution designed for upgrading or replacing legacy pneumatic thermostats in commercial HVAC systems. This Direct Acting kit features a standard 55 85F dial range, providing precise pneumatic control within tight tolerances for optimized building automation. Engineered to replace Honeywell, Robertshaw, or older Johnson Controls models, the T 4002 303 streamlines the retrofitting