Bard 8603-033 Solenoid R-410A with a maximum operating range

with a maximum operating range safety margin up to 30 PSI

This SPST (Single Pole Single Throw) switch features a robust brass compression connection and is engineered to protect the heat exchanger by ensuring the burner only fires when adequate water pressure is detected

Specifically engineered for Honeywell PP901A and PP901B Series pressure regulators and controllers

By mixing hot water with cold at the source

While the XB-1019FW551B is specifically charged for R12 refrigerant

Bard 8603-033 Solenoid R-410A with a maximum operating rangeThe Bard 8603 033 Solenoid with End Switch is a critical direct replacement flow control component engineered specifically for Bard geothermal heat pump systems and water to air units. Designed for high reliability hydronic management, this 24V solenoid valve features an integrated end switch that provides essential feedback to the system controller, ensuring the compressor only engages once the valve has reached its full open position. This prevents