providing the millivolt output required for various gas control systems

By centralizing these HVAC control board connections

The Armstrong Furnace H2TXV03 TXV Valve is a high-precision thermostatic expansion valve designed to regulate refrigerant flow with industrial accuracy

This vent safety switch features a fixed temperature setting of 280°F (L280)

8-Ton Rating: Sized perfectly for mid-range residential air handlers and evaporator coils to ensure balanced heat exchange

Trane SWT2074 Limit Switch 320819-301 providing the millivolt output requiredThe Trane SWT2074 Limit Switch is a critical electromechanical safety control engineered for high precision temperature monitoring in Trane HVAC systems, including furnaces and air handlers. Designed with a bimetallic strip mechanism, this high limit switch is calibrated to trigger at 175F (L175) with a 30F differential, ensuring the system shuts down the gas valve or heating elements if internal temperatures exceed safe operating parameters. This OEM