TECHNICAL INFORMATION FOR Whirlpool® HVAC DEALERS AND DISTRIBUTORS

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Furnaces - WFD19 Downflow, Multi-Speed Gas Furnace

The Whirlpool® WFD19 93% AFUE Downflow, Multi-Speed Gas Furnace features a patented aluminized-steel tubular heat exchanger and durable Silicon Nitride Hot Surface Ignition system.

Standard Features

  • Patented heavy duty dual-diameter tubular heat exchanger with lifetime limited warranty plus 10-year limited furnace replacement warranty
  • Two-stage gas valve with revolutionary new convertible technology that allows installer to activate the two-stage valve with the flip of a dipswitch
  • Silicone Nitride igniter with patented adaptive learning control for maximum igniter life
  • Furnace control board with self-diagnostics, color-coded low-voltage terminals, and provisions for electronic air cleaner and 24-volt humidifiers
  • Control board stores the last five diagnostic codes in memory; simple push-button activation outputs the fault history to a flashing red LED
  • Low constant fan allows the homeowner to activate the low heat speed to efficiently circulate air throughout the home
  • Self-adjusting feature automatically adjusts to high or low stage based on outside temperature without an outdoor temperature sensor
  • Dual-certified for sealed combustion direct vent (2-pipe) or non-direct vent (1-pipe) applications
  • All models comply with California NOx emissions standards
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