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Let me get this straight. You're married. To a woman I'm guessing. And you're having 'fun' trolling forums? You sure know how to show your lady a good time.

Also, I don't bench the thing onto the roof :grin2:

Just did a compressor a week and a half ago that was 89 lb.s (Trane hermetic for a 5 ton condenser to be exact), and I got it up without a hitch. There was a second guy there, but he hooked it up on...

I read through all of this, and all I saw was 50 and 75 lbs, and mention of a crane, or two men. I agree, completely, that safety is of utmost importance, but come on. That's NOT heavy weight. Two...

I watched a video about pump seal replacement and saw some things in the video that I have never done (and I've replaced a lot of pump seals).
1. Adding liquid soap to the motor shaft to slip on the...

Please don't take my response the wrong way, but I have some questions.



How does power "seem" to be going to the compressor?



Could be open? You're posting this question on a public...

Always go by your subcooling to check charge (superheat will vary based on current load). A sight glass will flash sometimes at half capacity, it will also flash at first when a system has been off...

lol

So. I've never seen this before, and hopefully never will again.
I began a maintenance on a 1 year old BAC closed loop cooling tower, upon opening it up I was taken back by what I thought was a...

Yes, the dip switches are correct and haven't ever been changed, the rocker switch is puzzling me, it won't budge, so I cant access most of the operation setpoints. You are correct about it not being...

It's a x13650346-03 control panel, it's a black panel, has the 'J' setpoint knob on the left with the delta setpoint knob below it and a black rocker switch on the left to access service or operation...

Sorry, I completely forgot to list the year, it's a J92E82516. Yes, I drove the setpoint all the way up and it continues to chill the water until it hits the minimum leaving water temp. No .pdf is...

I have a Trane CGADC25GAGA1FGTW that I need a reference manual for if anyone can post one up, I would greatly appreciate it.
In the meantime, the problem I'm having is this chiller is not...

Thank you for the info...

Master License Exam Prep?
I have a question for those that have taken the exam (with or without taking a prep course). I'm at a point where I'm able to take my Masters exam, and looking into prep...

I have a question for those that have taken the exam (with or without taking a prep course). I'm at a point where I'm able to take my Masters exam, and looking into prep courses around here...

Thanks for all the great info guys. I did check the top port for the oil filter outlet and it was 215. My head I believe was around 245, so I am running about a 30 psi drop across the filter. I have...

Thank you very much, that makes complete sense now. Dammit, it took forever to get my mind wrapped around that, so the diagnostic isn't that the entering oil and saturated condensing temps are...

Yes, 14 was my measurement. 8 is what the system was saying, and it was staying pretty constant at that. I haven't checked the discharge superheat.
Now I'm getting mixed signals now on whether my...

The 14 degrees superheat was suction superheat.
I didn't notice any issues with floodback or with improper EEV function, circuit 1 sensors appeared to be reading accurately and the system never did...

I checked my other circuit (circuit 2) and I am running almost identical pressure/temperatures, the one thing that is different on circuit 2 is the entering oil temp is 140* with a 117* sat. cond...

Update: unit is now online, both circuits are running. Here are the readings for circuit 1 (the circuit that has been tripping on 'oil failure').
Compressor RLA average=91%
Entering oil temp=125*...

An update will be coming in the next couple of hours. Thanks for all the advice it's pointing me in the right direction.
I also noticed a post earlier where someone was talking about sweating LL...

I'll start with checking that this evening, I was there last week which is why I knew the charge (at that time) was good. However, I just had received emails regarding the faults it was logging,...

I have a Trane RTAA0904XJ01A3C0BG that has circuit 1 continuously tripping due to "Oil System Fault-ckt 1". Now, there has been no recent repairs done to this circuit which could have brought in any...

I agree with you on this, before I changed the EXV I was actually considering going to a txv with due to the price of the EXV, I also agree about the accumulator, but now that it is back up and...

Well. You guys were right, it was the sensors. They ohmed out fine, yet they were the problem. The board got delivered to me but I changed out the thermistors first, turned it on....runnin great....

Water flow is good, circuit b runs great until it eventually locks out on code 55, which is a variation of possible issues not pertaining to the refrigeration circuit. I'll start with the sensors,...

Are the only two sensors that would cause this the one sensing saturated temp on the barrel and the on on the compressor body?

Do you happen to have a reference chart for the dcv drop that I can check the temps the thermistors are sensing while it is running?

Yes, this is at factory charge at 122 lbs on that circuit of r-22 on that circuit.

Pressures: 160 head....5 suction . It starts at around 200/60, then slowly drops due to the EXV not opening.

I tried it with a variation, I hooked up a new sensor, left the old connected which senses the saturated refrigerant temp in the chiller barrel, left the new one hanging sensing outside air which...

Started having an issue with this chiller where the EXV was freezing up on circuit 'A', which is a tandem circuit, one of these 06Es was just replaced. Well, the EXV was freezing up then locking out...

Thats how every burnout should be handled....good practices. I also flush with Rx11 flush.

whats a "good" vacuum? and do you know this because he told you or you witnessed it? thats a blocked drier not a carrier issue. A good vacuum, if any at all was pulled. Either that or it was an...

Ok, I see now, I haven't seen those Eaton style high flow valves before, interesting.....appreciate the information....I am amazed though that the tool for that is $500. thanks

No, its ok, you didnt read the post right. Someone had come out saying the coil needed replaced because there was a restriction "in" the system, condensor side. But what I found was there was only a...

Whoever told you this doesnt know what they're talking about, try $35 made by JB, I got some .com stock I wanna sell ya

Ok, I'm confused, just to see if were on the same page.....all the refrigerant leaked out of this "schraeder port" well if this was a typical schraeder port then you could get this at any supply...

Funny story about that, had a customer came to me wanting a second opinion/quote on replacing her 10 ton rtpu. Said she had a company come out and told her the condenser coil was "restricted", and...

You shouldn't need a new coil, just the headers with the orifices that come off the header. Also, confused with the diagnosis, you say the bottom of the coil wasnt getting cold, then you said you...

This may not be conventional, but we had a system with a couple of chilled water coils had burst due to the unit being turned off and OA still coming in, one of the suggestions was to fill it with...

The dust in a room collects on the registers due to the air moving across the registers creates static energy which draws the dust particulates to it, I originally had thought that the dust was from...

This is what I've always been told

I'm heading to a centrifugal class in a couple of weeks to the McQuay plant, anyone have any suggestions on things I could ask, or issues with any particular equipment your having that I can ask for...

Oh thats my bad then, I've been told it's a phase out of the manufacturing of r-22 all together by 2010. My apologies.......bad information

I've never heard it talked about much on here, but I think its a good conversation piece.

How heavily do you think the complete phase out of r-22 in 3 years is going to affect our industry. I mean...

Just put one in the other day, the capacitors blew in them, found out from the office that this is the third one put in in 4 years. The motor took this one out, a 20hp internally shorted, it must...

Anyone here have problems with Yaskawa VFD's, specifically the P7??