Thread: XDX

**sigma** · 04-27-2002, 11:33 PM

At the last RSES meeting we had a lecture on
Xstream Valve System. I wander if anyone had chance
to see them in the field and do they really work?
Thanks.

**condenseddave** · 04-27-2002, 11:58 PM

I've seen the powerpoint that they put out, claiming to end world hunger, bring peace to the middle East, make the power company PAY you to use their electric, etc.

The same was said of the Heatcraft Beacon when it was introduced. More empirical data is required.

**sigma** · 04-28-2002, 12:17 AM

I see that I am not the only sceptic here.
Dave, thanks for your opinion.

**supplymike** · 04-28-2002, 04:26 PM

I will get a big post on here for how they worked on a job that was recently installed. I will post it as soon as I can. they are not cheap. on this job. They work great

**Dowadudda** · 05-01-2002, 09:01 PM

How do they work is my question, I just saw one of these things. one of my guys came in with some literarture on it but it seems I can't find any that knows much about these things. I'll betchya its a secret right??

**Diceman** · 05-01-2002, 09:43 PM

on the X-Files the other night, they used it to turn human beings into alien zombies, weird.

**sigma** · 05-01-2002, 09:59 PM

From what I understand, the valve is made the way that liquid passing through, starts to spin do to vortex effect.
Spinning liquid coats whole wall inside evaporator tube versus flowing on the bottom of tube in conventional system.
This flow pattern increases area of contact with liquid, which leeds to:
smaller temperature difference from the beginning to the end of coil.
reduced numbers of defrost cycles,
reduced power consumption,
and what Dave have said already.
Hope that Supplymike will shine more light on it.

**condenseddave** · 05-28-2002, 01:05 AM

Sir Michael,

How'd it go???

**supplymike** · 08-04-2002, 04:08 PM

Well, I finally have an answer on this job, here were the job specs. The XDX valve was installed on 2 - 15HP kramer Thermobank systems. we applied the XDX on one of the coils as a test. the application: 28-32 Meat chill room.
The product was entering at a temp of 103°. at a 90-95% RH
Before the XDX valve was installed the coil had to be defrosted every 2 hours. One day later, after checking the opration everything was operating well. there was 6° superheat at the coil and 25° at the compressor. we attempted to reduce the superheat further. the tech at the jobsite got the superheat at the coil to 4°-5° and 18°-20° superheat at the compressor. he left the settings at that point, because in his attempt to lower the superheat lower we only had 10° superheat at the compressor during low load conditions so he raised it back up a few degrees. the increase in system capacity has helped to remove more heat from the product and also to improve the product quality.
right now the system can run all day during production without a defrost. and we have it set at a defrost every 10 hours.
they are elated with this system. I hope this describes the capabilities of this valve. there are reps all over the country selling this product. you can check it out at http://www.xdxusa.com.

**wrytious** · 04-29-2003, 06:03 PM

Anyone see this XDX?
I saw Carrier stocks it now in refrigeration catalogue...
A guy I know saw defrost reduced from 4 each day to 1.
I saw it in a store door freezer that used to have frost and snow every where... now its gone!
I heard that Abbott Labs is buying it...
How does it work?

**icemeister** · 04-29-2003, 07:29 PM

I like Dave's word of the day..."empircal". Notice it has no B or S in it. This vortex thing, I assume, is actually improved distributor performance, No?

I'm resistant to change, still an old New Englander at heart I guess. I look at this stuff like the Beacon, Hy-Save LPAs and Bohnimizer systems...big promises and big price tags. I can't see this creating at revolution in this business, although it's technically interesting and I'd like to learn more.

Where's Andy to give us comment on this one?

**condenseddave** · 04-29-2003, 11:06 PM

Originally posted by icemeister
I like Dave's word of the day..."empircal". Notice it has no B or S in it. This vortex thing, I assume, is actually improved distributor performance, No?

I'm resistant to change, still an old New Englander at heart I guess. I look at this stuff like the Beacon, Hy-Save LPAs and Bohnimizer systems...big promises and big price tags. I can't see this creating at revolution in this business, although it's technically interesting and I'd like to learn more.

Where's Andy to give us comment on this one?

Yeah, I'd like to hear his take on this.

As far as frost on product in a glass door freezer, well, someone who knows what causes that must've been there and fixed the problem.

I doubt the XDX would stop that. It will, however, I hear, cure cancer in lab rats.

**wrytious** · 05-02-2003, 04:08 PM

Check out this article.
I was looking for them at xdx.com, its xdxusa.com ... someone posted it right, I just read it wrong...

http://xdxusa.com/forum/attachment.p...03ec&postid=50

more info on this site than I've seen , if you dig... And this article says that Commonwealth Edison or Excelon endorses them.

As for the frost going away... They talk about having a liquid film wall, and an evaporator that barely changes from inlet to outlet so you don't build all of your frost in on place

Thread: XDX

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Supplymike is a dealer for them.

I saw one

WELL?????????????????????/

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