White-Rodgers 21M51U-843 Two-Stage HSI Integrated Furnace Control Board, 3 Speed (PSC)

White-Rodgers 21M51U-843 Universal Two-Stage HSI Integrated 3-Speed (PSC) Circulator Furnace Control Kit Includes HotRod™ Universal Ignitor Kit – 21D64-2. Electronic air cleaner Yes Humidifier Yes Twin Yes Features • 120 VAC Ignitor Output • 120 VAC Two-Speed Inducer Output • 120 VAC Humidifier Output • 120 VAC Electronic Air Cleaner Output • 120 VAC 3-Speed PSC Circulator Output • 2-Stage Gas Valve Output • Fuse Protection – 3 Amp • 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 Mode)…