Variable Primary Controller For HVAC Air Cooled Plant Automation (Intellicon 2000)


  • Chillers and pumps as well as Air Handling Units must be connected in parallel.
  • Each chiller must have a differential pressure sensor connected across inlet and outlet.
  • The pumping system must have a differential pressure sensor across inlet and outlet headers.
  • A differential pressure sensor will be placed between inlet and outlet of each zone served by the plant.
  • Electrically actuated chiller isolating valves are required for each chiller in the system.
  • An electrically actuated bypass valve must be provided between the outgoing flow to the zones and incoming flow to the pumping system and

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