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White-Rodgers Universal 2-Stage HSI Variable Speed Circulator Furnace Control Kit

Part 307934
MFG PART 21V51U-843
Brand White-Rodgers
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In lower 48 states
Non-returnable
Cannot be returned or exchanged
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About this item

  • Universal 2-Stage HSI Variable Speed (ECM) Circulator Furnace Control Kit
  • Reduces Inventory By Providing Maximum Control Replacement Coverage
  • 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
  • Factory Standard Safety Timings And Adjustable Fan Delay Options
  • Replaceable Automotive Style Fuse
  • Mfg #21V51U-843