US PATENT SUBCLASS 165 / FOR 113
.~.~ Correlation of plural zone controls and central system control (165/22)

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

FOR 104  DF  AUTOMATIC CONTROL (165/13) {2}
FOR 105  DF  .~ Heating and cooling (165/14) {14}
FOR 113.~.~ Correlation of plural zone controls and central system control (165/22)

DEFINITION

Classification: 165/FOR.113

Foreign art collections wherein the interaction of the individual controls for a plurality of zones effects a

control action on a central heating and cooling system.