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Edmondson Supply will be closed May 24th 2024. Final guaranteed shipping time is 12pm EST Thursday, May 23rd. Regular shipping will resume Tuesday, May 28th.
Edmondson Supply Will Be Closed May 24th 2024. Final guaranteed shipping time is 12pm EST Thursday, May 23rd. Regular shipping will resume Tuesday, May 28th.

White-Rodgers 21M51U-843 Universal Two-Stage Integrated Furnace Control for PSC Blower Motors

Save 56%
Original price $568.32
Current price $248.64
SKU 21M51U-843
Currently 2 in stock.

White-Rodgers 21M51U-843 Universal Two-Stage Integrated Furnace Control for PSC Blower Motors


Universal two-stage furnace control kit includes 120 vac nitride ignitor 21d64-2 for 80v and 120 vac hot surface ignition and psc blowers, services Amana, Armstrong, Lennox, Trane, Goodman and York family brands replaces 50A51, 50M51 and 50M1 applications.

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
  • Diagnostic LED indicators streamline installation and system troubleshooting
  • 120V air cleaner output and 120V humidifier output up to 1 Amp max
  • Added dipswitches to trial for ignition and blower delays
  • Additional blower motor wire extensions
  • Trane ignitor mounting bracket is included

     

    Specifications: 

    Multiple Input Voltages:
    24 Vac, 120 Vac, 50/60 Hz
    Amp Rating: 14.5 FLA-25.0 LRA @ 120 Vac (Circulator Relay)
    Ambient Operating Temperature: -40 to 175 deg. F (-40 to 79 deg. C)
    Operating Humidity: 5% to 93% relative humidity (non-condensing)
    Accessories: Includes Ignitor
    Approvals: CSA (Canada & US)

                

    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

           

    21M51U-843 Sell Sheet

    Catalog Page

    Installation Instructions