Hydrotherm 02-1552 Gas Valve Freon drop-in replacement for the obsolete

drop-in replacement for the obsolete VAL3405 and is commonly found in Lochinvar Copper-Fin models such as the CBN0497

Ensure the arrow on the shell matches the direction of refrigerant flow toward the expansion device

How do I test this flame sensor in the field

This poppet-type pressure relief valve is specifically designed for residential applications

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Hydrotherm 02-1552 Gas Valve Freon drop-in replacement for the obsoleteThe Hydrotherm 02 1552 Gas Valve (also identified as 021552) is a heavy duty, 24V standing pilot natural gas valve engineered for precision fuel regulation in commercial and industrial boilers and furnaces. As a high capacity combination gas control, this unit integrates a safety shutoff, manual valve, dual automatic operators, and a pressure regulator into one compact housing. It is a direct OEM match for many Hydrotherm heating systems and cross