you should adjust the air pressure to match your boiler fill valve setting (typically 12–15 PSI) while the tank is empty or isolated from system pressure

No Power Required: Mechanical vapor tension operation ensures consistent monitoring during power outages

High-Current Capacity: Maintains a 35-amp contact rating at 480 VAC

Direct Drive Compatibility: Matches factory specifications for 1/2" shaft furnace blower motors

While the frame size may match

Ranco V1-408060-170 Reversing Valve 30067439-890 you should adjust the airThe Ranco V1 408060 170 Reversing Valve is a technical essential for technicians servicing residential and light commercial heat pump systems, including window units, unitary, and split systems. This 4 way reversing valve operates under the full pressure of the heat pump system, utilizing a 4 way pilot valve to provide positive reversals even at low pressure differentials. Engineered for precision, it features a 1 2" suction connection and a 3 8"