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CONTROL SYSTEM FOR ENVIRONMENTAL CONDITIONING UNITS

  • US 3,797,560 A
  • Filed: 06/21/1972
  • Issued: 03/19/1974
  • Est. Priority Date: 06/21/1972
  • Status: Expired due to Term
First Claim
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1. A control system for operating a plurality of heating and cooling units comprising:

  • command means for producing a heating or cooling command;

    counter means for counting up and down;

    counter control means responsive to said command means for controlling siad counter means to count up, count down, reset to a null state, and maintain a given count;

    pulsing means for transmitting periodic pulse to said Counter means; and

    , air conditioning control means for controlling said heating and cooling units in response to said counter means'"'"''"'"' output.

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