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  1. #14
    Join Date
    Mar 2004
    Location
    ottawa canada
    Posts
    2,022
    If you'd like we can talk about why the purifiers had to have a maximum pumpout timer incorporated into their design

    The purpose of the pumpout limit is to alert the operators to the fact that the purge can no longer keep up with the allowable amount or that the small amount of purging has suddenly increased to alert you/them that more attention to the chiller is required .
    I set them as low as I possibly can, some as low as ten minutes but where they are on Yorks I set them at 100 to allow for the inevitable shaft seal leakage when the seal is not kept wet .
    Clearly Klove I think you should study the purifier more closely . It along with the Earthwise are the most efficient purges on the market period .
    As for the purifier pumping liquid ..........I have yet to see one do it ..

    And lets not forget about the TurboGaurds "free pumpouts" at start up to compensate for off cycle air infiltration ?????
    Last edited by Healey Nut; 08-09-2011 at 09:03 PM.
    The 64 roars to life Whoo hoo ...shes a rolling chassis .
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
    Best Austin Healey In Show twice in 2013 .....All those hrs paid off .

  2. #15
    Join Date
    Mar 2010
    Location
    Va.
    Posts
    180
    There is a high liquid level cutout switch to shut the Trane purge down if does fill up with liquid. Thats why I have no problem letting the purge run over night. The Adaptiview option is also a nice option for those chillers that are off for an extended period of time.

  3. #16
    Join Date
    May 2011
    Location
    North FL.
    Posts
    204
    Really G, your really try to argue about two different style purges. Come on, if i remember right. Way back when the epa made all the changes, that guzzler of a purge was i think (could be wrong), the only purge system that had to make no changes. none, notta. But how about them reliable belt driven super high maint fricks' . And every style since. Sorry to tell ya< hands down, I have work on ten times the amount of the purges your pushing. They are job security. the turbo guard is the most maint free and reliable and eff. not saying there the most eff. Not knocking any purge just letting you know. The purifier is like a cute little car compared to the turbo guard 3/4 ton 4x4 Diesel.

  4. #17
    Join Date
    Mar 2010
    Location
    Va.
    Posts
    180
    The Adaptiview option is also a nice option for those chillers that are off for an extended period of time.


    The Adaptive mode is a nice feature not Adaptiview. I'm glad I caught that before I got nailed on that one.

  5. #18
    Join Date
    Jan 2005
    Location
    Houston TX
    Posts
    873

    Purifier purge Adaptive Mode

    Phisher-That is a great operating mode as long as that chiller runs on a regular basis. However, if you have a very large plant with chiller that sit idle for extended periods due to extensive redundancy you could have a chiller full of air and never know until it's too late. Here in Houston at our medical center we have a plant that has 9 Trane 1200 ton chillers. Even now in this high heat there may be only 6 chillers running and rotation is monthly so the idle chillers just sit there in adaptive mode. When swapped over several chillers will extend above the 10 minute pump out limit demanded by the chief engineer. In adaptive it is all based on purge history and if it has no purge pump out time while operating for a month, it won't purge while it's idle as you are not moving any vapor around or displacing liquid. I finally sat down with the chief and we now run all the purifier purges in the "on' mode and now average 2 minutes a day on the worst one. Trane's work especially well with the PP, Yorks and Carriers (the older ones) not so much as most of them will contaminate the heat exchanger with moisture. I have installed large driers (for minimum pressure drop) ahead of the purge in the larger vapor line and got a lot of moisture out that way, but it has to be at a place your at on a regular basis so you can keep an eye on the refrigerant flow. The ironic part is they may have moisture flowing along with the refrigerant, but they can also have little to no pump out time. I've seen it happen. -Geo
    Once in a while everything falls into place and I am able to move forward, most of the time it just falls all over the place and I can't go anywhere-GEO

  6. #19
    Join Date
    Mar 2004
    Location
    ottawa canada
    Posts
    2,022
    [QUOTE The purifier is like a cute little car compared to the turbo guard 3/4 ton 4x4 Diesel.[/QUOTE]

    Yep and just just like a 4X4 3/4 ton diesel the Turboguard chugs a whole lot of fuel !!!!!!
    It may meet the EPA regs in the US but doesnt even come close to meeting the regs for Canada . Were a lot more strict here , no leak rates allowed etc etc
    The 64 roars to life Whoo hoo ...shes a rolling chassis .
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
    Best Austin Healey In Show twice in 2013 .....All those hrs paid off .

  7. #20
    Join Date
    May 2011
    Location
    North FL.
    Posts
    204

    Thumbs up

    Roger, Roger

  8. #21
    Join Date
    Jan 2009
    Location
    Not in Iran
    Posts
    1,076
    Yep and just just like a 4X4 3/4 ton diesel the Turboguard chugs a whole lot of fuel !!!!!!


    diesel does suck a he** lot of fuel., lol
    no signature blast'em man blast'em
    !!!KILL THE TERRORIST!!!

  9. #22
    Join Date
    May 2011
    Location
    North FL.
    Posts
    204
    I guess you can say it does, when you compare it to a highbred. But ponies to ponies, weight to weight ratio vs output and performance. Any condition, little bit of moisture or heavy rain, sleet or snow. The turbo guard will pull any load. When most others can't come out and play!

  10. #23
    Join Date
    Oct 2004
    Location
    ca
    Posts
    69
    i also would not let a portable purge operate unattended,if you dehydrated the mach properly you should use the on board york [pos] purge to remove any non-con and air.i just pullled off a york purge and replaced it with trane earthwise,really like that set up.also if in doubt you can limit your purge count to reduce the risk of ref loss.
    good luck

  11. #24
    Join Date
    May 2011
    Location
    ZA
    Posts
    12
    An interesting topic but the fact that you're knocking each other's preferred purge units is really just a tad silly. My experience has been with York and a little bit of Carrier. The sampling is from the top of the condenser - are the other purge units not the same? If they are, what would be the point of running a purge during the off cycle? Just recently I came across an old (19DG?) Carrier with a retrofitted purge unit and I must tell you that I saw no sense in running it during the off cycle.

    I've also seen mention of shaft seals leaking. Why, if the shafts have been correctly aligned? That is certainly is not something that I've experienced. But I was always very particular about alignment.

    Like I said, an interesting topic and good to see your enthusiasm.

  12. #25
    Join Date
    Mar 2004
    Location
    ottawa canada
    Posts
    2,022
    and a little bit of Carrier.

    Dont get us going on Prevent !!!!!!!!!!

    what would be the point of running a purge during the off cycle?

    same as running it with the chiller on

    I've also seen mention of shaft seals leaking. Why,

    York shaft seals are designed to leak .
    The 64 roars to life Whoo hoo ...shes a rolling chassis .
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
    Best Austin Healey In Show twice in 2013 .....All those hrs paid off .

  13. #26
    Join Date
    Jul 2011
    Location
    Columbus, Ohio
    Posts
    136
    I never understood the sense in running the purge during the off cycle. Seems to me most of the air would be at the top of the valute. With the pick up tube being in the condenser what good does it do. Mechanical purges work on superheat and require a load on the coil from the refrigerant flow. If the unit is at zero pressure or in a vacume the flow is decreased to the purge chamber and thereby the superheat is low, causing it to pump out refrigerant.
    The turbo gaurd is a good purge until it breaks. That little oil pump on the newer style is $3300.00 and is a bear to change out. I can see why they get replaced with mechanical style purges.

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