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  • Users: johnhjo
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  1. johnhjo

    evaporative condensor

    Hi, does anybody has any experience with it?. I saw one in china refrig expo. it is said to have good kw / tonr. but instead of loosing water/day what other drawback of this chiller?. and why branded chiller such trane, york, carrier, etc not producing this kind of chiller?
  2. johnhjo

    R123 chiller

    Hi, I would like to know how big is R123 chiller selling in US? is there any reference about percentage of selling yearly in website?. And how does montreal protocol affect future selling for R123 chiller?.
  3. johnhjo

    corrosive water pipe

    Hi, I have installed galvanize (medium type) pipe in office building. Within 3 months most part of pipe leaking. I cut them apart, found lots of sediment and corrosive cavity inside pipe. Finally, I get water sample and analyze it with result: - Mg : 14.1 miligram / liter - Ca : 47.3 miligram...
  4. johnhjo

    Kyoto Protocol

    Hi, Does any body know Refrigerant gas phase out schedule based on Kyoto protocol?
  5. johnhjo

    time to melt 1 ton ice

    Hi, I would like to know how much time is gonna take to melt 1 ton of ice in different kind of outside temperature. Is there any formula/reference/table I could learn from?. Assuming under normal pressuree ( 1 atm ) and no other heat source. Thank you.
  6. johnhjo

    need feedback mcquay chiller

    my client asking for mcquay because of its lowest price. Does anybody had experience with McQuay screw WSC 079 - 087 and/or centrif AGS 400. I need opinion about them; How reliable?, is it good or bad.

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