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Thermostat operable from various power sources

  • US 6,886,754 B2
  • Filed: 06/03/2003
  • Issued: 05/03/2005
  • Est. Priority Date: 06/03/2003
  • Status: Expired due to Fees
First Claim
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1. A thermostat comprising:

  • a heating transformer power terminal;

    a heating load terminal;

    a common terminal; and

    a power source selector configurable to operate the thermostat from alternating-current voltage provided between the common terminal and the heating load terminal when the power source selector is in a first position, and to operate the thermostat from alternating-current voltage provided between the heating transformer power terminal and the heating load terminal when the power source selector is in a second position.

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