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https://hvac-talk.com/vbb/showthread.php?1112111-Oil-Loss-on-York-YK-chiller caan we take a minute to just read this... shutdown is even mispelled the same way, totally a copy paste job.

not that it matters now but after reading the whole post he probably took the temps too close to when he washed the coil and the water had it colder than ambient.

who are we to judge if the customer likes it...

with "silica" now you have to

sounds like its time to get the electricians involved.

If its filled with concrete your going to want to have it cored or it will look bad. If you don't have it cored you might want to build a box around the hole to cover it up.

shit happens. Some years ago I condemned a compressor that had gone off on thermal overload because I read it was grounded with my meter and later found out the unit was leaking. Luckily I put in for...

yeah and with the high superheat that comes from a restriction and the 80 degree house your line was frosting.

Several of your comments are snide. Your battery wasnt the cause of your meter being in Celsius you being an idiot was. Put the meter in Fahrenheit next time and stop acting like people are morons...

I feel like you answered very few peoples questions... also just own up to it. You had it set to the wrong temp, its okay. You didn't give a subcool so how have you determined restriction? what kind...

my meter. my meter. and my meter. I have a few of them and i love them all, fluke 902fc and a temp clamp and my fluke 1587 megger... without proper test equipment you can misdiagnose so whatever it...

well played....
didn't even occur to me since I almost never work on anything using a piston except some bard units a few years ago.

I assume thats what he meant

depending on how bad the compressor sounded it could be the compressor valves have been beat up and slugged with liquid since its a recip

Well there is a thread somewhere that claims that it is but I will find it somehow eventually I would just like to avoid spending the money on it like I have with everything else I have needed, not...

m-tool or basically just hvac-pro dx9100 and hyperterminal. i only sent in yesterday or the day before and it says weeks so.

I have all the stuff to hook up to the old stuff at this point (I still need to go get a dongle or portable router or whatever you want to call it that will talk to bacnet MS/TP) just need the...

probably going to have to go back and look but there is a chance someone wired all the wires into the thermostat and several are not being used.

more like that whiny lady Hilary that keeps coming back like the clap... we get it, you lost.

yes when the refrigerant leaves the compressor it comes out a superheated vapor then stays at pretty much the same pressure desuperheats condenses and subcools past the bubble point... so as long as...

if your trying to figure out the discharge superheat or suction side superheat your looking at dew point bc thats where the liquid begins to accumulate if your looking at the subcooling your looking...

he said fruit vegetable chiller he has to mean large refrigerator or freezer I would think and I have seen plenty.

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if your going to buy a vacuum pump you might as well go with a 7 cfm name brand and buy a good one because your going to use it for a long time, also if you cheap out and buy one that breaks you...

They are going to tell you this is not a DIY website you should go ahead and call somebody to come look at this, best bet is to call a commercial refrigeration company not a residential company even...

https://www.youtube.com/watch?v=oqQgWvBX9_0
you could watch this he plays with a motor for you to see the difference its pretty bad.

welcome to houston... local 211, you can call tuesday let them know your a vet take a math test they can help you find a job or you can call a few contractors and try to get hired on before they can...

why do you have a heat pump if they want electric heat? if its never going to turn the heat pump on a transformer to hold the valve on cold, then red to t-stat and y coming back... or a different...

thermostat
I took a call because of no cooling the thermostat was turned off. when i told the guy that was the only problem after checking out the unit to be sure he told me he couldnt believe it...

If your already a service tech and know a few controls guys you can start by getting ahold of like a UNT or DX9100 that come off of a job and then getting the stuff to hook up and play with it at the...

Yes but don't be so quick to blame the schrader nitrogen test or at the very least use a micron gauge when pulling vacuum to verify that the system isn't still leaking.

there have been working flow meters and they were inline orifice plates where you measured the pressure drop across them and did the calculations or using pressure drop across valves using the cv...

if thats the way the switch works shouldnt there be an operator saying less than and more than those tempertures because otherwise the switch shouldnt know which is which and also its still written...

can you put 40 FCU on the same transformer?? seems like alot but i dont do much install. I have also never seen a fan coil unit every 3 feet thats one and a half tiles away which would be unheard of

well to me it looks like they are adding and subtracting because a thermistor will show 69.9 so you dont want the heat to kick on and they are bypassing real PID looping by just saying wait 1.5...

Not a big programmer so i cant help much but cant you drop in Boolean logic to make sure the cooling and heating don't both show true at the same time and if they do then you throw an alarm or if the...

its more difficult when your writing programs or troubleshooting something, you sound like you've done some programming or at least want to sound like you have and that might help you a little bit...

I have taken a few small controls classes mostly dealing with legacy Metasys and carrier I-vu stuff. They gave us controls manuals and stuff and I have been coming across a lot of UNTs and DX9100...

Not sure where this is going on but that sounds like your at another mom and pop union shop. I work Union and have never heard of another union company working this way. Some of them make you do some...