US PATENT SUBCLASS 165 / 210
.~.~.~ Heat balancing using waste heat or cold (e.g., heat reclaim, etc.)

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}
210.~.~.~ Heat balancing using waste heat or cold (e.g., heat reclaim, etc.)

DEFINITION

Classification: 165/210

Heat balancing using waste heat or cold (e.g., heat reclaim, etc.):

(under subclass 205) Subject matter wherein the heating and cooling system includes a means for utilizing excess heat or cold discharged at one location (e.g., radiation heat from light fixture, etc.) to reduce a heating or cooling requirement in another location (e.g., waste heat can be used to offset heating requirements in space heating, service water heating, air reheat in air conditioning systems, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

54, for heat exchange apparatus combined with wall, floor, or ceiling structure of a chamber; subclass 909 for regeneration heat exchange apparatus.

SEE OR SEARCH CLASS

62, Refrigeration,

95, for refrigeration process having plural cooling steps; digest 22 for refrigeration system having free cooling.

454, Ventilation,

294, for ventilation system having air passes over lamp; subclass 295 for ventilation system having ceiling type inlet airway and adjustable valve.