Proper installation of this furnace draft inducer box is essential for optimizing drainage and ensuring the venting system operates within manufacturer specifications

This typically points to an open or shorted SCR within the dual module

and FM Approved for use as a primary safety shutoff valve

providing the necessary pressure relief for the test check valve to function accurately

System Compatibility: Purpose-built for York AVC and MVC air handlers

Dwyer Instruments 2008 Pressure Gage 323080-701 Proper installation of this furnaceFor high performance air handling and environmental monitoring, the Dwyer Instruments 2008 Magnehelic Gauge remains the industry standard for measuring differential pressure. This mechanical pressure gage features a 0 8. 0" w. c. range with a 4" diameter dial face, providing a clear, undistorted readout even from a distance. Built with a rugged die cast aluminum housing and a shatterproof acrylic cover, this unit is engineered to withstand 168 hour