White-Rodgers™ 21M51U-843 Universal Two-Stage Furnace Control, 24 VAC, 14.5 A

Item Features

• Reduces inventory by replacing most White-Rodgers 50A51, 50M51, and 50M61 and other two-stage HSI controls with 80V or 120V ignitor.
• Includes a universal 120V nitride ignitor to allow replacement of 80V and 120V controls
• Added dipswitches to trial for ignition and blower delays
• Additional blower motor wire extensions
• Trane ignitor mounting bracket is included
• Thermostat Inputs R,C,W1,W2,YLo,Y,G