and WB series units utilizing a direct mount flame sensor

This motor must pull a vacuum to close the pressure switch before the burners ignite

allowing it to control up to four compressors or five fans depending on the configuration and step-control logic selected

Heavy-duty forged brass construction prevents distortion during high-heat brazing and silver soldering

is the industrial standard for self-powered gas control systems

Trane VAL8707 Expansion Valve 322056-301 and WB series units utilizingThe Trane VAL8707 Expansion Valve is a critical OEM refrigerant metering device engineered for high precision flow control in 2 ton residential and light commercial systems. This thermostatic expansion valve (TXV) features a 3 8 inch inlet by 1 2 inch outlet configuration, designed to optimize heat transfer across the evaporator coil by maintaining consistent superheat levels. By accurately modulating refrigerant mass flow, the VAL8707 prevents liquid