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Autocycling control circuit for heating and/or air conditioning systems

  • US 4,174,807 A
  • Filed: 08/10/1978
  • Issued: 11/20/1979
  • Est. Priority Date: 08/10/1978
  • Status: Expired due to Term
First Claim
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1. An autocycling control circuit means for automatically controlling the activation of a heating system comprising, in combination,(a) first and second thermostat means, said second thermostat being set at a higher temperature than said first thermostat,(b) means for continuously coupling said first thermostat means to said heating system for continually maintaining a minimum temperature in accordance with the setting of said first thermostat, and(c) programmable timer means for selectively controlling the coupling of said second thermostat to said heating system during settable, predetermined time intervals,(d) said programmable time means including a control means coupled to said second thermostat for selectively enabling and disabling said second thermostat during said predetermined time intervals in accordance with whether said second thermostat is calling for heat.

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