Resideo V8044A1010 Valve 318172-701 while 780-781 is the Robertshaw

while 780-781 is the Robertshaw manufacturer number for the same control board

we recommend using this HVAC pressure switch to ensure the 650/500 setpoints remain exactly as the manufacturer intended for specific Trane HVAC parts compatibility

The feedback signal (Terminal U) allows your building automation system (BAS) to verify the actual position of the damper

It connects via a standard six-wire RJ-11 jack

Reliable Filtration: Protects sensitive metering devices from internal debris and sludge

Resideo V8044A1010 Valve 318172-701 while 780-781 is the RobertshawThe Resideo V8044A1010 is a heavy duty 3 way diverting zone valve engineered specifically for demand side control in closed loop hydronic heating and cooling systems. Built with a rugged brass body and a stainless steel stem, this 24Vac motorized valve directs water flow from a common inlet to either of two outlets. It features a 1 2 inch sweat connection and a high torque spring return mechanism, ensuring the valve defaults to the closed position