TEMPERATURE CONTROL SYSTEMS: Why Don’t They Work ?
WHAT WENT WRONG? <ul><li>WILLIAM J. COAD </li></ul><ul><li>COAD ENGINEERING </li></ul>
Where We’ve Arrived: <ul><li>Digital control has replaced analog control with few exceptions </li></ul><ul><li>In the very...
Where We’ve Arrived: <ul><li>As a percentage of cost, software development, custom programming and commissioning have beco...
Benefits of Digital Controls <ul><li>They are information rich </li></ul><ul><li>They are infinitely flexible </li></ul><u...
The Solutions <ul><li>Eric Utterson </li></ul><ul><li>The Role of the Consulting Engineer </li></ul><ul><li>Harry Demetrul...
 
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Temperature Control Systems And Why They Dont Work

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Tech 1 - W J Coad
Technical Session from the 2006 ASHRAE Region VI CRC

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Temperature Control Systems And Why They Dont Work

  1. 1. TEMPERATURE CONTROL SYSTEMS: Why Don’t They Work ?
  2. 2. WHAT WENT WRONG? <ul><li>WILLIAM J. COAD </li></ul><ul><li>COAD ENGINEERING </li></ul>
  3. 3. Where We’ve Arrived: <ul><li>Digital control has replaced analog control with few exceptions </li></ul><ul><li>In the very near future, the “exceptions” will have been removed </li></ul><ul><li>Hardware is continually improving in reliability and capacity and decreasing in cost </li></ul>
  4. 4. Where We’ve Arrived: <ul><li>As a percentage of cost, software development, custom programming and commissioning have become much more significant than hardware </li></ul><ul><li>Many companies have seriously underestimated the need for and the cost of custom programming and system commissioning. As a result, most systems have failed to perform to their capability. </li></ul>
  5. 5. Benefits of Digital Controls <ul><li>They are information rich </li></ul><ul><li>They are infinitely flexible </li></ul><ul><li>They are expandable </li></ul>
  6. 6. The Solutions <ul><li>Eric Utterson </li></ul><ul><li>The Role of the Consulting Engineer </li></ul><ul><li>Harry Demetrulias </li></ul><ul><li>The Role of the T. C. Contractor </li></ul><ul><li>Jim Stueber </li></ul><ul><li>From an Owner’s Perspective </li></ul><ul><li>Jay Santos </li></ul><ul><li>Controls Commissioning </li></ul>

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