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Pressure switch assembly for a furnace

  • US 20080127962A1
  • Filed: 12/01/2006
  • Published: 06/05/2008
  • Est. Priority Date: 12/01/2006
  • Status: Active Grant
First Claim
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1. A pressure switch assembly for use with a furnace controller having a first input and a second input, the pressure switch assembly comprising:

  • a first pressure switch configured to actuate at a first combustion pressure level and connected to the first input;

    a second pressure switch configured to actuate at a second combustion pressure level; and

    a third pressure switch configured to actuate at a third combustion pressure level,wherein pressure signals provided on the second input from at least one of the second pressure switch and the third pressure switch are used by the furnace controller to derive actuation states of the second and third pressure switches.

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