Because they should have just a little knowledge on what a gauge is, how to hook up a reclaim machine anything more then nothing. And no you can't learn a lot in 6 months, but it at least will make...
Type: Posts; User: steve36558
Because they should have just a little knowledge on what a gauge is, how to hook up a reclaim machine anything more then nothing. And no you can't learn a lot in 6 months, but it at least will make...
Anyone can take the required EPA refrigerant handlers card as it stands. They should require a min of 6 months training, before someone can take the test.
The sizing depends on how its sold. You can size it to handle so much hot food or so many times entering in the cooler/freezer. A lot of choices to design build. Phx is pushing a fast pull down on...
Also seen a limit switch that the door frame has to be cool before it turns on heat.
Can't fix stupid !!!
Yes too large is no better the too small of a motor, you need to match the name plate amps as close as possible.
Yeah you guys are right. I prolly didn't read enough into the question. Non condensible could be anything other then refrigerant in the system. A wet sight glass just usally means it did get wet...
yes
Match your evap cooler to about 1400 cfm and finish out the rest with fresh from your A/C. You never want to blow air from a kichen to the dining room because of smoke. Make the air from the A/C...
After working in the trade repairing bars and restaurants for 10 years 1 thing I found out is that a LOT of owners talk to each other. Sometimes you have to take in the shorts a little to keep face....
Then use the Honeywell 8000 pro Residential. A little cheaper with a lot of options.
Replace motor with a size closer to the ampage your running.
Agreed... cut the pigtail off until you can fix it proper
Sounds like amps were too high to burn a motor that quick. The amps need to be equal or a little less of motor name plate amps. He can adjust the amperage by moving the blade in differant locations...
I guess the real question is what is the air making up? Like the name said Make up air, so it's replacing air removed from the building. Where is the air venting into? If it's doing a short...
There should be enough out gas not to have to worry about pulling a vacuum. But I still need to ask....why can't you recover the gas? how are you going to un pinch the lines to flow proper? If...
I know the POE oil loves to attract moisture. Maybe because it has a better glide factor going on. I posted a follow up in pro chiller for you.
Could it be possibly because the POE oil cleaned any or all of the sludge left from the C oil? I'm guessing a mineral based oil? POE is a great cleaner, used to have fun converting mineral to POE...
We had the same issue with our YS 300t S2 Yorks on oil return until I found the build sheet that wants 80 degree condenser water. So I moved it up from 76 to 80 and the oil return problems went...
Suction line is ok, liquid line is a little small. 1/2" should be used and suction traped every 10' to 12' of rise. The traps are mainly for poil return, so if it depends on how the compressors are...
Couldn't you just use 2 and 3 stage tstats and run them thru a couple simple relays? Either add a xformer in each unit or 1 large enough to run all the controls? Honeywell 8000 series is a good lil...
90 degrees is no big deal, being most coolers are designed to handle 95. If you are sure you have the correct TEV then if its adjustable, open the feed some to increase flow thru the coil and get...
Sorry I didn't see what the amp rating on your current motor was? I always sized my motors to match ampeage as close as possible to unit name plate amps. OEM does strange designs on their motors to...
Ummmm... no...lol.. what is the name plate FLA? If your close to being under then fan blade is correct. If there is not enough load a motor will over heat. Check voltage, connections, make sure...
On the face of the relay you will see a black silcone spot, under that is the scew that holds the case together for the start relay. Check the contacts, they might be pitted and some sand cloth...
WIF can suck in a lot of moisture from a room really quick. If the defrost termination is temperature make sure the kilxon is at the farthest point away from the closest heating elements. That...
I agree with John, start relay hangs up too long will blow a start cap.
I know several ( 5 or 6 that I know of)markets here in Phoenix had removed them after a year in service. Units weren't keeping water condensers clean enough so the pulled them.
We can go round and round on what might be needed to fix this problem, but the best start is to just a box load and compare to what you have in equipment. Your supply house can give you what the BTU...
I think your thinking a very high superheat at the coil. We don't have a lot of humidity out here in Phx most of the time, (today 108 degrees,5% humidty @25 DP)so need to run a fairly dry coil (like...
With the old location there prolly was a higher heat load because of it's location. It does sound like a over sized unit at this point because of it's new location and loss of possible heat load....
The system does have a design factor on TD, but if the SH is high you get a dry coil causing more sensible heat and a low SH will give you a wet coil causing to pull more latent to dehumidify. In...
You can change your humidity levels by changing your superheat at the coil. If you run a 20 degree TD you will not dehumidify as well as if you ran a 10 degree TD. Longer on time will also help...
POE oil is a great cleaner. You will get sludge in your system. You just have to keep changing filters until it's clean, also it's a good idea if it's a TXV system have a screen style body to clean...
One thing nice with the VFD's if you don't have enough pressure at your low setting it is an easy change to get a good balance! Good luck.
Make sure your changing all the oil in your pump. I have had really wet systems that the pump oil was so bad even the oil in the cartridge was enough to turn the oil white after a couple mins. Try...
One thing also is to check if it really is draining by adding water to the pan and see what happens. Also a trick I use is to suck the water out of a condensate drain with a wet/dry vac vs blowing. ...
There could be several issues happening.. like, low charge, plates seperated, water slowly draining passed dump valve, water float set too low. Are there any cubes a good size?
Freeze damage, like someone said try to get the line to slope out to it's drain so it can't have water in the line next time.
Stage them with 2 tstats and change lead lag after a couple months.
Where is the tube ending up at?.
Ok I started a forum in the pro section. :cheers:
I want to thank you for this web site. I've been a guest menber since 2004 and have posted several suggestions over the years to help other techs. I've been in the in the refrigeration trade since...
Well tried to unload while it was running and it wouldn't. It shut off on "water too cold" error and trying to start it @ 95% open slide, motor wasn't doing to good. After I get the gas out(so I...
Have a pair of Timberland Pro seris steel toe. I'm 6'3" 240#, have them for a year and wear them daily on concrete! No real wear showing on soles yet. Water proof, oil skid resisant, and electric...
Well I sumitted to pro status, we'll see in a couple of days. In the mean time I am pulling out the gas, because if it has been failing for a while, now is the weather to try to fix it while we have...
I had a feeling you were going to say that. The slide valve is stuck at 95% for 18 hours now (with the unit in the off position). This is a problem that has been going on for over a year now and...
Does anyone know if the refrigerant gas is connected to the area were the slide valve cover is? Or can I just isolate the valves and recover what is in there? I want to inspect the slide valve. ...
Common on R134 freezer units with POE oil getting way too hot over long period of time. I found it common on BEV Air freezers that had dirty or low air movement across the condenser coil. Need to...
It cleans all the years of build up of wax and sludge and plugs txv screens, plugs filters, many oil filter changes, oil pick up screens in compressors. Seems never ending.