Category: tools & home improvement > building supplies > heating & cooling > furnace parts & accessories
| Brand: White-Rodgers
| Merchant: Build.com UPC: 786710540714
White-Rodgers, 21V51U-843, Control Switch, Furnace Controls, Part, Hot Surface Igniter, Universal Two-stage HSI Integrated Variable Speed (ECM) Circulator Furnace Control Kit White-Rodgers furnace controls include the 21V51U-843 universal two-stage his integrated furnace control kit which includes the module and igniter kit, replacing White-Rodgers 50V51-xxx and 50V61-xxx's two-stage his systems with 80 v or 120 v igniters. Features: 120 VAC Igniter 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 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) 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 Replaces: White-Rodgers 50V51-xxx and all 50V61-xxxs Two-Stage HSI systems with 80V or 120V Igniter Specifications: Operating Temperature Range: -40 to 175F (-40 to 80C) Humidity Range: 5% to 93% relative humidity (non-condensing) Gases Approved: Natural, Manufactured, Mixed, Liquefied Petroleum and LP Gas/Air Mixtures are all approved for use Dimensions: 5-1/4"W x 8"H x 1-1/4"D White-Rodgers, a recognized leader in climate control solutions, celebrates 75 years of business in 2012. Experience, integrity and customer service are still the tenets that mark this great company. From the humble beginnings of two engineers collaborating to solve the control problem of the day, to being the answer for your climate control needs, White-Rodgers is the respected name among industry professionals and home owners alike.