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  1. Trigout

    Retrofitting or Replacement of Large Capacity Chillers

    Bigger dilema with the larger chillers than the smaller ones. imok2 is still correct that you need to do a cost comparison for the two options. You should include estimated operating costs for both options. Hopefully your contractor for the chillers will have some efficiency figures for the...
  2. Trigout

    Oil recovery problem in water cooled centrifugal chillers

    For the oil level going low you will need to add an artificial load. tombmech is correct that you may not need much more load to keep the oil level from going low. We had purg units on all centrifugals and I suggest you try to get funding for them.
  3. Trigout

    Retrofitting or Replacement of Large Capacity Chillers

    What size are the chillers and how many? imok2 has a great suggestion. I am not an expert but have spent many years maintaining chillers for air washers and process chilled water. imok2 is correct in the assumption that "usually" the maintanence on chillers is at best adequate. If the units are...
  4. Trigout

    One or two HVAC units?

    I must agree also that two units is preferred. You don't give square footages of the upstairs and down but you will be much happier with the management of temperature and humidity by having two units. What you were told about one unit being capable of handling the load of both stories is true...
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