Markel 43560001 Control 318820-201 maintenance-friendly alternative to traditional air

maintenance-friendly alternative to traditional air chambers that eventually waterlog and fail

Common Questions: Is a terminal adapter required for the 3RV2031-4JA10

or a failing switch diaphragm

Check terminal connections for high resistance and ensure the sensor leads are not run in the same conduit as high-voltage line power

Direct OEM Alignment: Eliminates the guesswork of aftermarket universal blades

Markel 43560001 Control 318820-201 maintenance-friendly alternative to traditional airThe Markel 43560001 Control is a heavy duty, factory specified Fan Delay Purge Control designed specifically for the 3480 and RCH Series commercial recessed ceiling heaters. Engineered with an L115 20F thermal switch, this component manages the critical purge cycle by delaying fan deactivation after the heating element cycles off. This thermal management ensures that residual heat is fully dissipated from the element, protecting the internal