and HC21ZE117 without mounting bracket adjustments

Simple Two-Wire Integration: Designed for rapid field replacement with standard wiring protocols for fast turnarounds

it features an adjustable differential pressure range of 4

The Lennox 39W70 Expansion Valve is a critical OEM replacement part designed for precise refrigerant flow control in high-performance HVACR systems

Resideo V8043B1019 Valve R-407A and HC21ZE117 without mounting bracketThe Resideo V8043B1019 is a heavy duty, 2 way normally open zone valve designed for precision flow control in closed loop hydronic heating systems. Engineered with a 1 2" sweat connection, this motorized valve utilizes a 24VAC spring return actuator to ensure the valve reverts to its open position during power loss or thermostat signal interruption. Built for long term field reliability, the unit features a forged brass body, a stainless steel stem,