Hydrolevel 500 Boiler Low Water Cut-OffThe Hydrolevel 500 Boiler Low Water Cut Off delivers reliable boiler protection for commercial systems. The Hydrolevel 500 combines heavy duty construction with precise control to prevent dry firing in large boilers. Designed for heavy duty service, this low water cut off uses a SPDT switch, 24V AC input, and a 16 Amp relay. It supports water based media up to 250F and 160 psi, meeting ASME CSD 1, UL, and CSA standards for safe commercial operation.

this burner control combines reliability with clear system/self-diagnostic capabilities for quick trouble shooting and ongoing performance

Use this essential gas boiler part to restore accurate temperature management

Field Controls 46257300 Combustion Air System Relay is a rugged

IP67 protection

End switch: No end switch

it stabilizes ignition

single-phase unit runs on 115V and includes a 25-foot power cord for flexible placement

With straightforward installation as a direct replacement

Honeywell ML6161A2017

5–150 psi hot water

Type: Filter Paper designed for precise sampling and clean media

and -40 to 150°F temperature range support reliable installation in heating