How do I verify a failing HK06WC069 pressure switch

it is compatible with CFC

As a high-efficiency ECM motor featuring an integrated control module

verify that the sensor resistance matches the TD114J remote selector or integral amplifier dial to prevent system calibration errors

facilitating straightforward electrical integration within watertight or explosion-proof enclosures

Watts 0276050 Valve 326010-701 How do I verify aThe Watts 0276050 is a high capacity boiler pressure relief valve from the rugged 174A Series, engineered for heavy duty protection in hot water heating and domestic supply systems. This 1 1 4 inch valve is factory calibrated to a 125 PSI set pressure, delivering a substantial relief capacity of 5,370,000 BTU Hr. Built with a durable bronze body and a stainless steel spring, it utilizes a non mechanical seat to disc alignment that prevents sticking or