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LU91tech:

Yes, this is a new version compared to 2 others I commissioned less than 6 months ago - - -

Freonguy CM

Push It :

Yeah, it throws a guy for a loop, especially when you have worked on so many that were all the same ( in the pump down regard ).

After a long and hot installation, one system has no...

Gentle(persons):

Just got off the phone with Liebert - Tech Support.

Seems as though the ' pump down ' mode has been disabled for about a year or so, scrolls or Carlyle - I suppose they should...

Six:
As noted, AFTER 20 minutes of running, it still dumps the compressor immediately on shutting off the control OFF / ON @ the iCOM touch pad.
I have worked on / commissioned well over 200...

Greetings:

Just a brain picking exercise - ( I have been working on Lieberts for nearly 30 years - iCOM trained , couple of AM/AG training sessions etc. )

Just comissioning a VS053WUA000266A...

[QUOTE=SuperStar79;4402902]Im guessing the compressor blew a gasket.

SS79:
I 'll send you 5 bucks if the compressor really blew a gasket. Just doesn't happen.
Chillerwhisperer makes a good point...

[QUOTE=Tech Rob;14036911]Wow! Not many of them around! I think I have seen one or two in my travels. Oldest one I take care of at the moment is a 1991 model with the Level 10 controls. I upgraded...

ZW17:
I have a few 1989/1990 vintage units here and they all have the ' 00 ' board which is the version just after what you have - I have worked on units like the one you listed, but I am inclined...

Glennhvac:

Without getting in to it, what a bout a spring wound timer ( 15 minute version ).

It could be used to energize the CC, as it is rated for 230v, and you may even find one that handles...

Thanks Toptech!!

FreonguyCM

Thanks for the feedback so far gentlemen ( women ) - this Forum is a wealth of knowledge if we all share.

Freonguy CM

Boilerman:

We are located on the West Coast where it never gets really warm - yes, I was aware that the capacity drop was in the 5% range, but, in my situation, most of the equipment in the Mill...

Toptech:

Do you have the Copeland bulletin of which you refer to? Or it's number?

We have used it in 7 systems so far at the Mill I work at, with good results. All A/C systems - Six Lieberts...

Genduct:

Yes, the copper gets attacked - but to a lesser degree.

First off, copper and brass components turn black - a thick, scaly oxide forms, especially on suction lines where there is...

JSWIN:

I am at a Pulp and Paper Mill - all coils are Heresite coated, and, unfortunately all equipment comes with Silfos joints. THe H2S is the culprit to be sure - I suggest using Easy Flo 45 as...

Danny:

What exactly do you do now? I have been in the trade for over 30 years in Western Canada and cannot imagine doing it without doing gas work.

Do you have a gas ticket?

PM me if you...

Sorry, my bad - will get the proper designation -

Freonguy

I work at a Pulp and Paper Mill - we use activated carbon ( Westvaco ) units to neutralize chemicals.

I was once talking to a somewhat unsavoury chap - when he found out I worked at a P & P Mill,...

HVACkid:

What about ultra sonic? The ones sold by the HVAC wholesalers are fair at best; I am at a Pulp and Paper Mill where the instrumentation guys have a $2300.00 unit that is unbelievable -...

Thanks, and a good thread !!


Freonguy

Mr.Kev -

Agreed on the Bible - I have one to be sure.

Do you have a link for the rebuild manual? I have one, but it got badly water damaged and some of it is illegible.

As for the valve...

Yes, WD-40 works pretty well; laquer thinner works better, however, it is more toxic.
I too use never seize on the shafts - makes doing it the next time a nicer experience.

Freonguy

Captain 123

Sounds like you may have it - what I was going to throw in the ring was to reverse the direction of the compressor - I have, over the years , seen a few cases where the oil pump won't...

Pascone makes a good point - I have a Ritchie # 93560 @ 6CFM - really like it.

Use a good vacuum gauge, and above all - CHANGE THE OIL REALLY OFTEN - the pump lasts, and gives good performance.
...

Tassajara:

That should be enough - - -

I will look at the differences between the II and III - but what is there will likely suffice.

Thanks for the help!!

Freonguy