3 Amp 120V Ignition & Furnace Controls 7-1/10 in.

Part #W21M51U843  |  Item #4081229  |  Manufacturer Part #21M51U-843

$ 322.55 EACH


7-1/10 in

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Product Details

  • Two stage gas valve output
  • Features 3A fuse protection
  • Tri-color LED furnace status lights
  • Auto second stage delay, dipswitch selectable
  • Historical Fault Retrieval by Pushbutton
  • Kit includes 50M51-843 control module, universal 120V nitride igniter kit, and installation instructions with OEM cross-reference
  • Flame current measurement points
  • Pressure switch inputs and monitoring


AMP: 3

Brand Model Compatibility: Lennox G320-9 Series Furnaces

Control Board Type: Ignition & Furnace

Depth: 1-1/4 in

Height: 8 in

Length: 5-1/4 in

Volts: 120V

Width: 7-1/10 in