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As to your first question as to the part winding start the same a Y-Delta the answer is No. A Part winding start on say a 60hp compressor has 2 identical motors rated @30HP each that are brought on with a brief time delay between the two. It was just one of the many...many ways of achieving the "Incremental Start" requirements that many of the larger cities imposed on motors greater than 20HP. As far as getting the suction-discharge service valves to hold you can try to open and close them "Several" times each in an attempt to clean off the valve seats....Sometimes it works....sometimes it does'nt. When the Worthington plant in Decatur Alabama closed in the 70's I was with the company that bought all the remaining 3V and 4V carcasses and brought several tractor trailer loads back to Atlanta. Unlike the Big Trane "E" models the big 4V had the capability of using an extended stroke crankshaft for lower temp. operation.

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worthington

I am starting to work on one of these same machines that you have discussed here. I am wondering if this was one of those that has been mentioned which was water cooled and has been converted. I thought that i was looking at a reciever but it had two 2 1/2" and one 3" pipe copnected to one end which have been cut off. I thought that it had been a subcooler only but now I think (prompted by your comments) that it was a water cooled machine at one time.

I am trying to isolate the machine into sections and using nitrogen to determine where the leak is that dumped the charge.

What is making the gurgling noise when I put nitrogen into the (receiver) or (old water cooled condenser ) ??? It sounds like water but the pipes have been cut for years and I can see the tubes that run through the barrel. NO noise is coming out there (using an ultrasonic) . It has two contactors and is a part winding start. Is this the same as a y/delta starter ? I see a time delay relay set at 6 minutes. you would not want the starter to delay for 6 minutes before going on full voltage run , would you ? I think it should be set at about a half a second. I don't know what other purpose that the delay relay would be for. Iwill have to check howit is wired tomoprrow.

Any tips her would be helpful as I have not worked on many chillers. 3 I think and not very extensively.

How can I get the service valves to seat fully ? they are leaking through enough to mess up my pressure tests.

Thanks,

John

Sounds cool. This one is ll solenoid though. It may have had the suction device that you describe originally but it was converted from water cooled to dx probably 20 years or so ago.

I gotta' ask something...Does your unit have a liquid-line solenoid or does it use the expansion valve to pump down via a small 3-way solenoid that either puts the suction pressure or discharge pressure on the equalizer line on the expansion valve for the pumpdown cycle. Worthington was the only manufacturer to use that tecnique on their recip chillers..
Just wondering if your chiller had that Lil' feature....

Originally Posted by auwing

Hey guys,

I have one of these that i am trying to find sme info on.
Model # lvs-401640-u
compressor #2vxhm8
can you still get parts if so where. What tonage is the unit?

Parts. Yes still available. Info also available. Where you at. The one in the pics is also a 2vx. Got er running today, whew!!!!!!!!!! I know I explained it to the customer that I could make no guarantees but I still wanted it to work out, going back in the morn to check on er. Mo pix coming soon, I have to clean up my mess first.

Hey guys,

I have one of these that i am trying to find sme info on.
Model # lvs-401640-u
compressor #2vxhm8
can you still get parts if so where. What tonage is the unit?

Originally Posted by wolfdog

That was unnecessary. Hope it made you feel better.

Hold onto the smiley face, you'll need it later.

Just having some fun. Not meaning to insult you at all. I would not be rebuilding this if the customer had not opted to do so and I will not, and do not in any way own this compressor and it has been made clear to them fully that I in no way guarantee the future of this machine beyond its working condition now, (its broke).

If it dont work after all this crap than assume that I have removed the u and only..... yeah you get it.

It will be interesting to see how it plays out. Today I began reassembling even though I did not have a couple gaskets and as I put the cylinder wall in it felt a little strange and sure enough the internal o ring for the loader housing was caught in the liner wall and sheared in 2, so I had to get an o-ring. Other than that it is going smooth so far and even better the customer asked me to get a price on a new chiller system in case this dont work or fails in the near future.

I may need a smiley face to borrow in the very and I mean very near future, but I covered my arse on this one.

That was unnecessary. Hope it made you feel better.

Hold onto the smiley face, you'll need it later.

Originally Posted by wolfdog

You're fixin' to own that compressor.
The last Worthington I opened up was the same thing and ended up pulling it out for a rebuild.

You assume that I have not fully disclosed this info with my customer. They were given the options and they chose to make the repairs with no guarantee that it will not break a week from now. SEE WHAT HAPPENS WHEN YOU ASSUME only this time you left out the last 2 letters.

Originally Posted by blackbelt3677

Pics of the entire unit!! please

Parts on order more pics coming soon.

You're fixin' to own that compressor.
The last Worthington I opened up was the same thing and ended up pulling it out for a rebuild.

So my fondest memories of these things are trying to rebuild them in place while they were hotter than (Oh Well)!. If I remember them does that make me an Old son a B?

Pics of the entire unit!! please

More.
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More Pics as promised.
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Originally Posted by Chiller Guy

As I recall, triggerhappy is not mistaken. These compressors operated much like the big iron Trane (Mod E & F) and could incorporate pneumatic unloading using that port. Otherwise it was left open to the atmosphere.

As I found while talking to the guy at the local reman shop. He told me Trane bought or borrowed this design later on their compressors. He also did say that they were without a doubt almost bullet proof. Unless you flood the crap out of them with the loader. I think that is what happened to this one.

Today I pulled off the plate and while cleaning the inside gasket surface on the manifold I thought I knocked a piece of gasket material in the sump, even though I was using plastic wrap to prevent it from getting in there. I then shined my light in and found a piece of a broken connecting rod cap in the oil sump. Now I get to replace the piston, connecting rod and cylinder sleeve. Lucky me, I always get the fun stuff, actually I am kinda having fun with this one. I will post some pics a little later, I have to sort them out after I take em off my cell.

Originally Posted by triggerhappy

I used to work for a Worthigton dealer back in the day.

If I am not mistaken we used to use the port that you are talking about to hook to a pneumatic receiver controller for external capacity control.(I am sure that is no real help in this case but may be of interest)

That is really cool. Load unload based on actual load, what a concept. Pneumatics, by far the most dependable accurate controls to date, dang hacks and ill maintenance ruined them.

As I recall, triggerhappy is not mistaken. These compressors operated much like the big iron Trane (Mod E & F) and could incorporate pneumatic unloading using that port. Otherwise it was left open to the atmosphere.