Quote:
| Originally Posted by Nevil David,
With respect to choosing between direct expansion (DX) or Chilled water (CHW) systems I would suggest a chilled water system. The reason is that with a DX requries refirgerant piping to each unit, and in case you have a leak you're likely to loose the refrigerant charge. You'll then need to locate the leak, repair and refil the system ( expensive and time consuming).
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Not to mention that the freon gas does not support life, is heavier than air so it tends to stay in the space that the leak occured in.