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21V51U-843 White Rodgers Furnace Board Control Kit for Goodman B1809927S

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Product Description

White Rodgers Furnace Board Part number 21V51U-843.

This is a Universal Two-Stage HSI Integrated Variable Speed (ECM) Circulator Furnace Control Kit.

16-pin variable speed circulator output for ECM (Electronically Commutated Motor), dipswitch selectable for OEM applications two-speed inducer output, 2-stage gas valve output
Pushbutton fault history retrieval.
Furnace status LED tri-color (green, red and amber).
Heat fan off delay (dipswitch selectable), fan on delay for cooling.
Auto second stage delay (dipswitch selectable).
120 VAC humidifier output/120 VAC electronic air cleaner output.

120 VAC Ignitor Output
120 VAC Two-Speed Inducer Output
120 VAC Humidifier Output
120 VAC Electronic Air Cleaner Output
2-Stage Gas Valve Output
16-Pin Variable Speed Circulator Output
OEM Application Dipswitch Selectable
Fuse Protection 3 Amp
Furnace Status LED Tri-Color (Green, Red and Amber)
CFM LED (Green)
Heat Fan OFF Delay (Dipswitch Selectable)
Fan ON Delay for Cooling
Auto Second Stage Delay (Dipswitch Selectable Mode)
Historical Fault Retrieval by Pushbutton
YLO, Y, W, W2, R, G, C, O, BK/DS/Dehum Terminals
Pressure Switch Inputs and Monitoring
Flash Microprocessor with Non-Volatile Memory
Flame Current Measurement Points

All White-Rodgers 50V51-XXXs
and 50V61-XXXs Two-Stage HSI Systems
with 80V or 120V Ignitor.

18M9901, 20300002, 20300004, 20300006, 49M5901, 50V51-243, 50V51-288, 50V51-289, 50V51-290, 50V51-507, 50V61-120, 50V61-143, 50V61-288, 50V61-289, 50V61-507, B1809925, B1809927, B1809927S, CNT03078, D156245P01, D34142P01, PCB00106, PCB00106S, PCBBF106, PCBBF106S, PCBBF107S, X13650840010.

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