US PATENT SUBCLASS 165 / 209
.~.~.~ Supervisory central control means overrides zone controller

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
209.~.~.~ Supervisory central control means overrides zone controller

DEFINITION

Classification: 165/209

Supervisory central control means overrides zone controller:

(under subclass 205) Subject matter including a master control means capable of overruling the operation of at least two of the area control means.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation,

1, for zone control for heating and cooling medium; subclass 47 for high and low temperature alternate control devices; subclass 51 for distance-adjusted control devices.