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I am relocating to Columbia, SC in June 2014 from California. I have 20 years experience in the commercial/industrial field.

I have experience in the Pharmaceutical industry where I was the lead...

I too am looking for the XPSI Manual. I would like to leave it for the new owners as we are shuttering our facility and have removed our BMS system for one of our buildings from our company servers...

My other tech didn't scroll through the rest of the alarms, so these may be related...the space pressure sensor has failed, so will replace that as soon as it comes in. Also, there is an ECEM...

I have a CV Trane Intellipak that has an EF failure. I get this alarm even after power down/power up, and it shows up right after boot up, then cycles the exhaust dampers fully open. Not sure why I...

Not doing it for the money, that is for sure, but I believe I can get more bang for my buck back there. Housing is far more affordable, and for what I paid for my house out here, which doesn't even...

Thanks...Yes, I know the Bay Area has a high pay scale, not expecting to make the same out there. Just want to get out of California...the sooner the better...sucks to make the money I do and always...

Yea, tried that...except the parts houses...

I went on Indeed.com and emailed 4 employers that have jobs posted and asked them...not a single response...not asking for specifics...just a...

So no one knows what the approx pay scale is?

Carrier too agrees with failing valves, so will be replacing the compressor. I am sure that some will say I should just replace the valves, but this is a criticial piece of equipment, so since I...

Compressor is an 06D, and unloader is set 60ish/7.5ish. It is unloading if I adjust, based on amp draw, and is currently running fully loaded. Just not sure if it were leaking by enough to cause it...

Also, 1 mechanical unloader which appears to be working properly, but was wondering what the effect on the sysyem that would have if it were failing or leaking by. Amp draw indicates that head is...

I have reposted this in the correct forum, didn't realize I was in hte wrong one...

But to address the 2 replies...

"What is your delta t, are you having problems maintaning temp in space? ...

Originally posted in the wrong forum....


I have a Carrier 12 ton split system. Original issue was bubbles in the sight glass, SC and SH also indicated low charge.

Charged system to clear...

Current employer is closing our facility by Dec 2013. I lived in Charlote for a couple of years in the 90's, and I still have friends & family in the surrounding areas.

I live in California and...

I have a Carrier 12 ton split system. Original issue was bubbles in the sight glass, SC and SH also indicated low charge.

Charged system to clear sight glass. Ambient temp at troubleshooting...

I am moving to the Columbia, SC area in 2014. Can anyone tell me what the pay scale is for the area with the following experience?

18 years heavy/light commercial & industrial HVAC/R as a service...

I am monitoring temps at coil outlet, and near compressor. The fluke clamps won't work on lines larger than 7/8" I think, and the suction line on this circuit is 1 7/8" I think. That is why I wrap...

I also wrap my thermocouple with a piece of rubber strap, then electrical tape that for a fully insulated and tight thermocouple contact to the refrigerant line. Since the rubber strap wraps around...

I did valve off the suction line a little at a time open and closed, foaming was still present, and since there was no oil pressure drop from start up through settling in, it would give me the...

The outcome was that oil pressures was pretty stable at about 40 psi, and since there doesn't seem to be a definative answer, I am just going to accept it's foamy oil personality and call it good. ...

R-22 refrigerant...and the foam is not just a little foam on top, the complete sight glass is foamed...

I am limited on what I can do on this system as it is for our clean room and it is temperature/humidity critical. In other words, if I throw the temps off in the clean room, we would have to stop...

All readings were taken with compressor fully loaded and compressor 1 was off line so that I could get as much load on the new compressor as possible.

I agree with the liquid refrigerant theory,...

There is no oil cooler, have to check sump temp, oil level is at most 1/3 when not foaming, crancase heater is insertion type at bottom of sump, the standard semi hermetic type CCH.

I was told...

I just replaced a Copeland short head compressor with a new tall head compressor. Compressor had a failed valved which destroyed the top of the piston. During diagnostic, oil pressure was good at...

These units are about 15 years old by the way...

I only considered the downsize because of the higher insulation rating of the 1 hp motors and the numerous fan motor failures. I have only been...

acwizard, I am glad you have had good luck with your experiences with Energy Lab units, but of the 7 that we have here, they were not built well.

We had compressor failures, stacked coils with...

I just installed a new semi hermetic compressor for the second time in 6 months (2nd burnout).

I changed the oil on the last compressor, put in 2 bottles of acid neutrilizer, changed out the...

OK, too clear some things up...it is not a Carrier, believe it or not, there is another manufacturer that is even a bigger pile of $#*@, they are Energy Labs. If you have never heard of them,...

I am trying to figure out if these chillers have a minimum run time. We have a new machine that has tight tolerences on the chilled water supply and I am getting complaints about too much of a...

Coils are layered, and we are humidity controlled for our clean rooms only. The office units we could care less about as for humidity levels.

I have not actually not checked oil pressures when...

I have 3 questions:

How do you size a c/fan motor correctly? I have similiar units with 2 differant condenser fan motor sizes. One uses a 1 HP, one uses a 1.5 HP. The fan blades are bigger on...

I have a Bohn air handler with a stacked DX coil (M# RT26BMA). A new Carrier condensing unit (M# 38AH-028-610AA) was installed to replace the Bohn (M#RCD24RD) condensing unit (before my time). Both...

Thanks all for the info, but still unsure...

It will be re-pipied over head. The rise from the A/H to the top of the run is 5 ft. My understanding was that risers and traps are only required for...

Can anyone direct me to a website or link where I can get some good info on proper refrigerant line installation or give me some direction?

I have a 40 ton Mammoth air handler with a Carrier...

The units are sitting on I-Beams and I believe that they are structural. A super structure was built on the roof, so they are actually raised off of the roof by about 4 feet, and that is what the...

Boxcars are packaged units...

I have numerous "Energy Labs" box car units. All of them but 1 have 2 compressors with unloaders. A couple of the units have multiple head/unloaders.

The current staging in Comp 1, Comp 2,...

I have a Mammoth Model Number - CLDSFBEFP-702-78-VAV Serial number - 387-01-01 boxcar unit. The frame rails under the wet end are severely rusted and has some rather large holes in the frame rails....

I have 4 Trane Intellipak box car units with 4 scroll compressors each. The only differance between the 4 units is date of manufacture. On the 2 older units, amp draws are good across the board.
...

The compressor runs fine, no issues. It has 2 unloaders, and there is no temperature variances when the compressor is fully loaded. I just did a leak repair and the compressor pumped the low side...

I have a Mammoth unit with 2 Discus compressors. The primary compressor oil and refrigeration sight glass are clear as a bell. The #2 compressor however has very dirty oil. You can't see to the...

Yea, I have heard the Raleigh has a few pharma companies and will likely be looking in that area as well. I lived in Charlotte for a couple of years in the early 90's and still have a couple of...

I am hoping to relocate from California to the Charlotte, NC area in about 2 years. Does anyone have any suggestions for good locations to live with good schools?

Also, I am currently the lead...

WOW!! Talk about going off on a tangent...ha ha, but WOW!! What a lot of good information...

Anyway, to update on my original problem...the pressure drop is related to 2 things...

1. We have...

I have a Carrier 80 ton chiller. Is there a rule of thumb, max pressure drop across barrel on the fluid side, not the refrigerant side?

I currently have about 16 psi drop across barrel (54/38)...

Could the unit be oversized? With some of the crap I have here, it is a very good possibility. This unit is for the 2nd floor and is the same size as the first floor with the same size pulleys on...

Yes, visually verified that all IGV operational and closed. Verified duct pressure with Dwyer Mag, they both read the same (new transducer so I would expect that anyway)

Nothing obvious with fire...

just to update...this unit got put on the back burner so I have no new updates. Boss says it is cooling and leave it alone for now...Thanks for all the posts...

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