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The A22-1112 is a "No Off" model
Key Benefits for Field Installation Direct OEM Replacement: Engineering match for S1-031-00863-000
as well as MSR and HS oil burner models
using this OEM York S1-024-26024-000 ensures the pick-up and drop-out voltages exactly match the compressor motor characteristics of the specific York unit
ensuring the inducer motor establishes proper draft before allowing the ignition sequence to proceed
Maxitrol M420B-1/2 Valve 30067439-890 The A22-1112 is a "NoThe Maxitrol M420B 1 2 is a professional grade modulating gas valve engineered for atmospheric burners and indirect fired heating systems. Designed specifically for integration with the Maxitrol Selectra Series 94 and A200 electronic modulation systems, this 1 2" NPT valve provides precise, infinite flame adjustment to maintain tight temperature tolerances. The "B" designation indicates that both sides are fitted for low fire adjustment, allowing