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  • Item Code: 50M56U843
  • Brand: White-Rodgers
  • Unit Size: 1


The 50M56U-843 kit is a universal single stage HSI integrated furnace control that employs a microprocessor to continually monitor analyze and control the proper operation of the gas burner inducer and fan.


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    • 3 fan speeds - cool low heat and high heat speeds
    • Universal Hotrod nitride ignitor kit - 21D64-29 quick-select/quick connect wiring harnesses
    • Red LED diagnostic flash codes with stored fault recall
    • Low voltage fuse protection 3 A replaceable automotive type
    • -40 to 176 deg F operating
    • 0.8 sec flame establishing
    • 2 sec flame failure response
    • 120 V ignitor voltage

Tech Specs

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Accessory Type Integrated HIS Furnace Control Kit
Amperage Rating 0.45 A
Brand White-Rodgers
Depth 1-1/4 in
Domestic/Import Import
Electrical Connections 1/4 in Spade Terminal and Molex Plug
Gas Type Liquid Propane/Natural Gas
Height 7 in
Igniter Warm-Up Time 17 s
Lead Length 15-1/2 in
Mounting Type Surface
Probe Length 15-1/2 in
Type Universal
Voltage Rating 25 VAC
Width 5-1/4 in

Documents & Guides

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Specification Sheet