The S1-031-03010-000 is the factory-authorized York control board replacement for discontinued part numbers including S1-331-03010-000

This unit is the direct technical replacement for the 3100A-15Q1

Key Benefits Precise Calibration: Factory-calibrated to 1

A 3-flash signal typically indicates an ignition lockout

Dual Sensing Options: Supports both local (single rod) and remote (dual rod) flame sensing to fit various burner configurations

Daikin-McQuay 111011001 Valve 321894-706 The S1-031-03010-000 is the factory-authorizedThe Daikin McQuay 111011001 Hot Gas Bypass Valve is a critical OEM replacement part designed for precision capacity control in commercial HVACR systems. Engineered to modulate refrigerant flow, this hot gas bypass valve maintains evaporator pressure and prevents coil freeze up during low load conditions, ensuring stable suction pressure across varying thermal demands. Built with a rugged brass body, the 111011001 valve features a 7 8 ODF sweat