Durable Construction: Forged brass body with NBR seals ensures chemical compatibility with LP gas
providing the rigidity required to maintain accurate positioning under air pressure loads
Inconsistent downstream pressure is often caused by a clogged sensing line or a dirty strainer
The Trane VAL7360 is a precision-engineered thermostatic expansion valve (TXV) engineered specifically for 2-ton high-efficiency HVAC systems
Utilizing the Robertshaw 1751-721 ensures that the microamp signal from the sensor probe is accurately delivered to the module
Carrier HK42FZ020 Control Board 320819-301 Durable Construction: Forged brass bodyThe Carrier HK42FZ020 Control Board is a critical OEM replacement part designed for two stage gas furnace systems. This furnace circuit board serves as the central logic unit, managing the complex sequence of operations for high efficiency heating cycles. Engineered for Carrier, Bryant, and Payne equipment, it replaces previous iterations like the HK42FZ019, providing reliable control over the inducer motor, hot surface igniter, and blower motor