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Veteran techs will recognize this as the standard specification for various Heil
you may require a total internal kit
this intermittent pilot module ensures rapid flame establishment and efficient fuel combustion
reducing the need for frequent tension adjustments
Resideo ZD8X28TZ Damper 318423-701 Veteran techs will recognize thisThe Resideo ZD8X28TZ Damper is a precision engineered 8" Wide X 28" High Parallel Blade Zone Damper designed for high performance airflow management in heavy duty HVACR applications. Built with a solid extruded aluminum frame and parallel blades, this unit ensures a low leakage performance and structural rigidity required for high static pressure systems. The damper utilizes a reliable 24Vac synchronous motor mounted on the 28" side, operating as a