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Type: Posts; User: dave1234

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  1. Replies
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    That is true. So if where in 100% hgbp and our...

    That is true. So if where in 100% hgbp and our recips are suction gas cooled we can only hope it doesn't run overheated?funny I went from flooding to overheating compressors. Ice makes a convincing...
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    539

    Yes I'm sure there's no intention to alter the...

    Yes I'm sure there's no intention to alter the piping and it'll still be distrod directly after the TXV. The idea is more precise dat control only. The DHRE works just fine and serves its purpose-...
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    I see this in precision cooling apps- CRACS. And...

    I see this in precision cooling apps- CRACS. And in my mind they're scrolls. Comfort cooling hardly demands such precise DAT. I realize the TXV will throttle back but if we're running hot gas were...
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    But I like the old one... Ha

    But I like the old one... Ha
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    539

    Systems already have hot gas and have been in...

    Systems already have hot gas and have been in service for almost 20 years. Some consultant recommends this fancy new hgbp for more precise dat control during DX season. My fear is too much hot gas...
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    A hot gas valve that will modulate based on DAT...

    A hot gas valve that will modulate based on DAT for more precise dat control won't to much hit gas flood evap
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    539

    Yes two circuits 40 ton each one with hot gas

    Yes two circuits 40 ton each one with hot gas
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    539

    Hot gas bypass and slugging

    As part of renovations a "mechanical enginerring consultant" recommends putting some sort of digital hot gas bypass to let the compressors run at next to nothing capacity. It is always fashionable to...
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    912

    I totally agree that to open again for minor...

    I totally agree that to open again for minor repair and replace new dryer is pointless and waste of time. As far as the HH driers and 404 I was referring to retrofit scenerios and the fact that the...
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    912

    That's another cause for discussion sporlan...

    That's another cause for discussion sporlan literature speaks of HH driers basically for removal of parafin wax as in lowtemp 404 retrofits but I hear guys talk about using them after a burnout...
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    912

    If out of shear bored em I can see baking it. I...

    If out of shear bored em I can see baking it. I think I small purge while I rebuild a solenoid will keep it plenty dry- something that should be done anyways
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    Because I've read on this very site dudes- and...

    Because I've read on this very site dudes- and here's one I don't understand- baking an old dryer in the oven to save the $25 cost of a new dryer. That's one I don't get- I'm suggesting a more...
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    "Drying" a drier

    Long story short after replacing a drier the other day I realized I need to open the system for repair again briefly. Was thinking of placing a heat lamp above the dryer while it evacuates again to...
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    I could be dead wrong here but it's a data center...

    I could be dead wrong here but it's a data center and I believe it may be on ups already
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    York chiller YLAA101 takes down BACNET

    Have a York YLAA101HE46X chiller. Everytime the facility does a load transfer gen test all devices go offline. Isolated problem to the chiller which uses BACNET gateway. Have to cycle control power...
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    My main point was regarding hairline cracks in...

    My main point was regarding hairline cracks in commercial equipment absolutley an atmospheric vented fan temp or time on would expose a co risk- on say a a continuos fan Rtu with induced draft if the...
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    [QUOTE=VTP99;17620201] 10-15lbs at least

    10-15lbs at least
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    The line "worked well" was in reference to the...

    The line "worked well" was in reference to the retrofit procedure. I knew it was wrong hence spending my "off" time - as if there really was such a thing- dwelling on stuff. I was more less intrigued...
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    I regress I have heard of dual pressure...

    I regress I have heard of dual pressure headmasters- if I remember right U break off one of the bulb stubs
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    So wouldn't just charging to clear site glass...

    So wouldn't just charging to clear site glass with cond coil wide open have an overcharge condition in the warmer weather
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    I've never heard of such a thing

    I've never heard of such a thing
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    Wrong headmaster / overcharge?

    Retrofitted a system from 502 to 404. Worked well- noticed headmaster after the fact hidden behind receiver of course- to be an r12 flavor- yeah that not gonna work. Thinking of just returning with a...
  23. So simply put we can gage refrigerant capacity by...

    So simply put we can gage refrigerant capacity by the differance between when the low temp low pressure liquid and the boiling point - as once the gas is superheated its ability to absorb any more...
  24. I understand the glide but I've heard 134 been...

    I understand the glide but I've heard 134 been called low capacity and it is not a blend
  25. What is meant by a refrigerant has low capacity

    Maybe a dumb question but the title says it all.. What is meant by a refrigerant has less capacity i.e 12 vs 134vs mp39 just throwing them out there for the sake of example- I realize different gases...
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