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Residential heating and air conditioning control system

  • US 5,181,653 A
  • Filed: 03/03/1992
  • Issued: 01/26/1993
  • Est. Priority Date: 03/03/1992
  • Status: Expired due to Term
First Claim
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1. A temperature control system for maintaining the temperature in each zone of a plurality of zones at predetermined set points for predetermined time periods by controlling the air flow into each zone comprising:

  • a master programmable thermostat positioned in a first zone and having a first damper associated therewith;

    at least one slave thermostat positioned in at least a second zone and having at least a second damper associated therewith;

    said master programmable thermostat having programming means for setting a first desired temperature to be maintained in said first zone and at least a second desired temperature to be maintained in at least a second zone, and for setting a first time period and at least a second time period for the respective desired temperatures, said programming means having means for setting a third desired temperature to be maintained in said first zone for a third time period and at least a fourth desired temperature to be maintained in said at least second zone for a fourth time period for controlling said first damper and said at least a second damper to control the air flow into the respective zones, andprogram temperature override means associated with said master programmable thermostat and said at least one slave thermostat for changing the current set desired temperature in a respective zone and only for the current programmed set time period, whereupon at the end of the current programmed set time period the next previously programmed set desired temperature and set time period will be maintained.

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