but the thermostat must be operational for the system to safely manage the cycle automatically

and KeepRite furnace platforms

this bi-metal thermal control ensures that blowers and burners are deactivated during potential overheat conditions

For any application exceeding 3 feet

Lennox 38M74 TXV 320788-702 but the thermostat must beThe Lennox 38M74 Thermal Expansion Valve (TXV) is a critical refrigeration metering component designed for high capacity 6 ton R 410A systems. Engineered for precise superheat control, this OEM Lennox TXV features an inlet and outlet configuration of 3 8" x 1 2" ODF (Sweat) connections, facilitating a secure, leak free integration into the liquid line. The included 30 inch capillary tube and sensing bulb allow for responsive modulation of refrigerant