The White-Rodgers 21M51U-843 Universal Integrated Furnace Control Kit is designed to replace most White-Rodgers 50A51, 50M51, and 50M61 and other two-stage HSI controls with 80V or 120V ignitor. Includes 120V Nitride Ignitor 21D64-2 for 80V And 120V Hot Surface Ignition and PSC Blowers. Whether you’re a homeowner, an HVAC technician, or a contractor, this kit streamlines furnace control upgrades and replacements. Replaces R43207-001 and 50M61-843.
Cross Reference: Amana/Goodman 10207708 10207712 10207713 20300001 20300003 50A51-215 50A51-225 50A51-235 50M61-288 50M61-289 PCB00114 PCB00115 PCB00116 PCBBF114 PCBBF114S PCBBF115 PCBBF115S PCBBF116 PCBBF116S PCBBF120S PCBBF125. Armstrong 43207001 44957001 50A51-210 50A51-211 R43207001 R44957001. Johnstone L39-373 L39-376 L42-300 L42-301 L42-302. Lennox Industries 100869-03 18M3401 39M26 46M9901 50M61-120 63W26 83L9301 Y4151. Trane/ American Standard 1006225 1148167 21M51-495 50A51-405 50A51-495 50M51-495 50M61-495 CNT01308 CNT02184 CNT03077 CNT05122 CNT06424 CNT07566 CNT1308 CNT2184 CNT6424 D330934P01 D330937P01 D340021P01 D341418P01 D341418P02 D344301P01 KIT15943 KIT17858 X13650839010 White-Rodgers 21M51U-843 50M61-843. York International 18381 18384 265903 449573 50A51-242 50A51-243 50M51-242 542767 67298 872670 S1-03101290000 S1-03101909000 S1-03102954000 S1-03103009000 S1-03109117000 S1-03109168000 S1-33102954000 S1-33103009000 S1-33109117000 S1-33109168000.