US PATENT SUBCLASS 165 / 208
.~.~.~ Central system prioritizes heating and cooling requests from zones

Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

200  DF  WITH TIMER, PROGRAMMER, TIME DELAY, OR CONDITION RESPONSIVE CONTROL {14}
201  DF  .~ Having heating and cooling capability {13}
205  DF  .~.~ Plural temperature regulators for plural zones {8}
208.~.~.~ Central system prioritizes heating and cooling requests from zones

DEFINITION

Classification: 165/208

Central system prioritizes heating and cooling requests from zones:

(under subclass 205) Subject matter including a common supply source capable of supplying heated or cooled air to each of said distinct areas; the area control means of each of said distinct areas each supplying a control signal to said common supply source; and wherein said common supply source includes signal accepting means to analyze the signals from the distinct areas to decide which of the areas will be first heated or cooled.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation,

1, for zone control for heating and cooling medium; subclass 49.3 for electrically actuated ventilator; and subclass 49.4 for pneumatically actuated ventilator; subclass 51 for distance-adjusted control devices.