As a direct replacement for 5H73034

this inverter power board is model-specific

125-inch spark gap design between the high-voltage rod tip and the burner ground

or visible leaks around the pump flange and motor housing

Reliable signal transmission is essential for maintaining proper combustion blower operation and system efficiency throughout the heating cycle

Dwyer Instruments CS-1 Pressure Switch 321702-401 As a direct replacement forThe Dwyer Instruments CS 1 Pressure Switch is a technical grade diaphragm pressure switch engineered for precision vacuum pressure monitoring in commercial and industrial HVACR environments. Built for reliability, this unit handles an adjustable vacuum range from 1" to 30" Hg (25. 4 to 762 mm Hg), providing versatile control for vacuum pump systems and process automation. The fixed deadband is set at 1. 5" Hg (38 mm Hg), which prevents rapid cycling