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  1. #14
    Join Date
    May 2001
    Location
    Western Wa
    Posts
    1,838
    I like to add a drier to the liquid return from the purge, if possible.
    God Bless our Veterans

    God Bless the USA

  2. #15
    Join Date
    Jun 2009
    Location
    Florida
    Posts
    540
    Quote Originally Posted by heavymetaldad View Post
    it's off on another job at the far end of town. it was a 480 water heater, with a small 120 pump and control circuit, all mounted on a 2 wheeler. needs a 480v, 30a 3phase and 120v,15a single circuits. when it comes back, i'll make a list and snap a coupla pics.
    i do have a cold trap at my job site. that i can make a material list and provide pics
    I used a Prevac portable at Trane. Nice unit, except you could only use it on 480 unless you changed out the transformer and PC board and we had a few machines that were 208, with no 480 close by. I'd like to set one up for dual voltage for those times I come across another 208 machine. Maybe use a multitap transformer with an access panel to change the voltage and learn to live with the lower heat output when necessary. I'd like to know who supplies the hotbox for Prevac.
    Low Pressure Forever!

    If you know heavy metal, you can work anywhere-Dave Andreson

    Anchors Aweigh my boys, Anchors Aweigh!
    Farewell to foreign shores, We sail at break of day. Through our last night on shore, Drink to the foam. Until we meet once more. Here's wishing you a happy voyage home!

  3. #16
    Join Date
    Aug 2009
    Location
    Seattle Area
    Posts
    58
    Quote Originally Posted by ChillerWisperer View Post
    I used a Prevac portable at Trane. Nice unit, except you could only use it on 480 unless you changed out the transformer and PC board and we had a few machines that were 208, with no 480 close by. I'd like to set one up for dual voltage for those times I come across another 208 machine. Maybe use a multitap transformer with an access panel to change the voltage and learn to live with the lower heat output when necessary. I'd like to know who supplies the hotbox for Prevac.
    I've used the pressurizer from reftec and it is great because the heater can be wired up to 230 or 480. It's a little spendy buy is well worth it if you were not going to build one and just spend the money. The pump is 115 so as long as there's 230 or 480 avail for the heater you're set.


    http://www.reftec.com/shop/category.aspx?catid=4
    Last edited by NWMech; 08-16-2009 at 10:11 PM. Reason: Add Link

  4. #17
    Join Date
    Jun 2009
    Location
    Florida
    Posts
    540
    Quote Originally Posted by NWMech View Post
    I've used the pressurizer from reftec and it is great because the heater can be wired up to 230 or 480. It's a little spendy buy is well worth it if you were not going to build one and just spend the money. The pump is 115 so as long as there's 230 or 480 avail for the heater you're set.


    http://www.reftec.com/shop/category.aspx?catid=4
    That is a nice little unit. And Reftec is right down the road from here...I've been to their new place at Lakewood Ranch and it's a clean setup. I'll check into it. Thanks.
    Low Pressure Forever!

    If you know heavy metal, you can work anywhere-Dave Andreson

    Anchors Aweigh my boys, Anchors Aweigh!
    Farewell to foreign shores, We sail at break of day. Through our last night on shore, Drink to the foam. Until we meet once more. Here's wishing you a happy voyage home!

  5. #18
    Join Date
    Jun 2009
    Location
    Florida
    Posts
    540
    Quote Originally Posted by ChillerWisperer View Post
    I'm pushing for a portable boiler to leak check machines and getting some flak about it.
    First job I get sent on to leak check a chiller, I ask my boss: "so where's the boiler" He says the customer has one onsite that I can use. When I get there, this is what I found:

    Low Pressure Forever!

    If you know heavy metal, you can work anywhere-Dave Andreson

    Anchors Aweigh my boys, Anchors Aweigh!
    Farewell to foreign shores, We sail at break of day. Through our last night on shore, Drink to the foam. Until we meet once more. Here's wishing you a happy voyage home!

  6. #19
    Join Date
    Mar 2004
    Location
    ottawa canada
    Posts
    2,063
    So when the "home made" boilers explode and you or someone else gets hurt or worse and the appropriate authorities investigate and find that the "home made" boiler has no ESA or CSA approval stickers on it . WHO'S A$% is on the line ????????????????????????????????????????????????
    JMHO........
    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
    Dec 2008
    Location
    Dixiana, AL
    Posts
    2,610
    Quote Originally Posted by ChillerWisperer View Post
    First job I get sent on to leak check a chiller, I ask my boss: "so where's the boiler" He says the customer has one onsite that I can use. When I get there, this is what I found:

    Sometimes there's a great chasm between knowing and understanding.

  8. #21
    Join Date
    Sep 2008
    Location
    Mesquite Tx.
    Posts
    373
    www.hotwaterheater.com

  9. #22
    Join Date
    Jun 2009
    Location
    Florida
    Posts
    540
    Double bogey, thanks for the link.

    Don't worry, I didn't actually use it. The customer had it hooked up when I got there, but I disconnected it and found a hot water source close by that I could use (boiler room was next door).
    Low Pressure Forever!

    If you know heavy metal, you can work anywhere-Dave Andreson

    Anchors Aweigh my boys, Anchors Aweigh!
    Farewell to foreign shores, We sail at break of day. Through our last night on shore, Drink to the foam. Until we meet once more. Here's wishing you a happy voyage home!

  10. #23
    Join Date
    Jul 2006
    Posts
    6,536
    When i was a second year apprentice i tried to vacum up some with a shop vac,great learning experience.whistle1
    You sure are cocky for a starving pilgrim.

  11. #24
    Join Date
    Sep 2008
    Location
    Mesquite Tx.
    Posts
    373
    I have used the heaters lots. They don't have any fusing so it is kind of spooky. But you can't beat a boiler. You gotta make sure you don't go too fast. Once heated a CVHE500 with R-11 to 8 lbs in 2 minutes. Scared me I thought it would get the rupture disc before I got it shut down. The stress coulbn't have been good for it. We converted it later, that was 15 years ago, I think it is still running.

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