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  1. dulenz

    Secondary Chilled water pump dp sensor position

    What about differential pressure sensor reset strategy (when you reset the set point on a differential pressure sensor until one of the control valves is fully open). Is that sort of control applicable in critical applications such as art galleries and museums? Anybody with actual experience?
  2. dulenz

    Secondary Chilled water pump dp sensor position

    When you say the furthest coil is it physically the furthest or hydraulically (index run)?
  3. dulenz

    Secondary Chilled water pump dp sensor position

    How do you calculate the best position for differential pressure sensor for controlling secondary chilled water pump and how do you determine actual set point? I am aware of various rules of thumbs (2/3 of the index run, index run, end of a riser etc.) and recommendations but would like to see...
  4. dulenz

    Chilled water buffer vessel

    If the primary circuit should contain at least minimum required chilled water volume (3.5-4.5 l per kW of refrigeration or whatever the manufacturer recommends), does that mean that most of the primary-secondary chilled water systems have buffer vessel because primary circuits are usually short...
  5. dulenz

    Chilled water buffer vessel

    Sorry, maybe I did not explain properly what I wanted English is a foreign language to me :) For example: if I have 100t chiller with 2 compressors. and Manufacturer recommends that minimum water content in the chilled water system should be 3gpm per ton so the questions are: 1. How much...
  6. dulenz

    Chilled water buffer vessel

    I would very much appreciate if somebody could help me with few questions. Chiller manufacturer recommends certain amount of water in the chilled water system per kw of installed capacity. Should I look at total kw of the chiller or total kw of the chiller divided by the number of compressors...

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