White-Rodgers Universal Two-stage HSI Integrated 3-Speed (PSC) Circulator Furnace Control Kit

Universal Two-stage HSI Integrated 3-Speed (PSC) Circulator Furnace Control Kit

White-Rodgers furnace controls include the 21M51U-843 universal two-stage his integrated furnace control kit which includes the module and igniter kit, replacing White-Rodgers 50M51-242 and 50M61-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
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)
Historical fault retrieval by pushbutton
YLO, Y, W1, W2, R, G, C, TWIN terminals
Pressure switch inputs and monitoring
Flash microprocessor with non-volatile memory
Flame current measurement points
Replaces: White-Rodgers 50M51-242 and all 50M61-xxx’s Two-Stage HSI systems with 80V or 120V Igniter
Easy Install Kit includes everything you need for quick and accurate replacement:
Ignition Control Module
Universal 120V Nitride Igniter Kit – 21D64-2
Installation Instructions and OEM Cross-Reference

Specifications:

Operating Temperature Range: -40° to 175°F (-40° to 80°C)
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.

Additional White-Rodgers Links
View the Manufacturer Warranty
Browse all White-Rodgers Products
White-Rodgers Furnace Controls Collection

Specifications