where is txv bypass at exactly??????

[resolutetech]

hey guys where is the bypass located around the txvs on the units i look at? i always see them in my ac books there they are with oneway valves allowing refrigerant flow around the inactive txv, but i never see em on the systems. are they internal? does an inactive txv allow refrigerant to flow backwards through its self?

[tinknocker service tech]

it is the little tube coming off the side of the valve and going to the suction line
your profile says nate certified for ac and heat pumps
so much for nate

[lumpyokc]

i believe its not even a bypass tube.. its an equalazation tube to open the valve

[karsthuntr]

I think resolutetech is talking about a HP txv.

On a heatpump the txv has an internal bypass so the refer will flow through without restriction. Not all txv's are the same and some must have an external check vave so the refer will bypass the txv.

[dorrmann]

Wow...someone doesn't think too much of NATE, do you? lol.

The little tube that you refer to, Tinknocker, is the equalization tube as lumpy said.

Resolutetech, if you are looking at a straight AC TXV, then it doesn't have a bypass. Bypasses are used for heatpumps. Some have them internally, and some require another tube going from the inlet of the TXV to the outlet with a check valve inside the tube.

[tinknocker service tech]

i know i was being sarcastic sorry

[NormChris]

Originally posted by tinknocker service tech
it is the little tube coming off the side of the valve and going to the suction line
your profile says nate certified for ac and heat pumps
so much for nate


That is not a bypass, it is an external equalizer only used on some valves. So, tinknocker do you know what it is for and when such an externally equalized valve is applied to a system?

[hvac-tech-lane]

Originally posted by NormChris

Originally posted by tinknocker service tech
it is the little tube coming off the side of the valve and going to the suction line
your profile says nate certified for ac and heat pumps
so much for nate


That is not a bypass, it is an external equalizer only used on some valves. So, tinknocker do you know what it is for and when such an externally equalized valve is applied to a system?
Thank you norm, lets put on our thinking caps and learn something here.externally/internally equalized, distrubtors, hard shutoff, start components, 3 txv/tev operating forces etc...

[wormy]

I think I might be able to actually post a reply without making a ten page report muahahaha..... but then again...
the link I'm fixin to give will make up for it :D

http://www.hvacmechanic.com/trouble_shooting/sm01,02-5.pdf
Scroll down to page 42

[dorrmann]

Here's the clickable link to wormy's thing.

http://www.hvacmechanic.com/trouble_shooting/sm01,02-5.pdf

[tinknocker service tech]

resolutetech
Professional Member


i am sorry for any sarcasum and for putting you down in any way. no excuse but was drunk and had no reason to take it out on you or any one else in here
after three years of hard times and not making enough at the end of the week i finaly gave in on the fight and was declared chapter 7. lost every thing i work hard for for thirty years and took it out in so again i am truely sorry
this has been a rough trade and i am not sure as of right now if i will be in it much longer. dont know how to post my credintials through have tried so when i have a chance i will post the in the other fourom
norm
bypass
simpley put right or wrong
equalizises the enternal of the valve so the pin can move and fluckuate evenly. works at the bottom of the pin and helps it open and close. if the schader core is not remove in the bipasport on suction line you will find the suction and liquid pressures riase and fall equaly as the valve opens and closes. reason all it is doing is opening and closeing not flucuateing and controling super heat
it is internal equalation on the internel of the valve
hope i put it close enough to for an exceptaple explaintion

[wormy]

Tin

My prayers go out for you and your family in the struggles you are facing.
When faced with problems, there are several ways to approach the solution. Beer and whiskey run downhill, and they'll only take you down with it.
Here's a link to some people who will help get you on the right path not only financially, but also help in more ways than you can imagine. I hope you seriously consider
looking into this.

http://www.crown.org/financialwisdom/church/budgetcoach.asp

[tinknocker service tech]

wormy ty. firt time in my life believe it or not i ever got drunk and passed out. man aint worth it
head is killing me and didnt make a differance wow what a supprize heheh
i will lok into you site
as far as this trade i will see what i decide
3 and 4 day work weeks spring and fall feast and fathum just not sure.
untill i do get it together again this is my last post
thanks to all

[beenthere]

Good Luck Tin.

[resolutetech]

hey im not offended. im here to learn. i am talking about a heat pump txv.

the external equalizer line allows the txv to have the pressure just past the bulb on the suction line as the force along with the spring force to counter the force from the bulb. its used when there is a large drop in pressure across an equalizer and large coil this keeps the coil from starving.

[wormy]

resolute

Get those brain cells to churnin.

What does the valve do if the suction line (sensing bulb) is cold and low pressure? Does it open or close?

What does the valve do if the sensing bulb is real hot and high pressure?

What is the temp of the sensing bulb and pressure that the equalizer tube seeing during heat pump operation?


After answering those questions and it 'clicks'... go here...
http://www.cfcc.edu/faculty/jpadgett/Unit%2024%20Expansion%20Devices.htm

[Mr Bill]

Originally posted by wormy
Tin
My prayers go out for you and your family in the struggles you are facing.
When faced with problems, there are several ways to approach the solution. Beer and whiskey run downhill, and they'll only take you down with it.
Here's a link to some people who will help get you on the right path not only financially, but also help in more ways than you can imagine. I hope you seriously consider
looking into this.
http://www.crown.org/financialwisdom/church/budgetcoach.asp




Wormy, as one brother to other brother, I sincerely appreciate your stand.
and Tin don't be so hard on yourself we all "at least us" are going through some tough times and the only thing that has help my company through all this is my faith number one and my belief that the Lord does not want me in debt, yes rent, food, gas you know these things are a given, but one of the guys that started with me last summer got out and hustled and made a ton didn't save bought a house, new truck, and he went into a deep depression during the winter and melted down a few credit cards, I tried to tell him to cool it and put back for the winter but he would not listen. I have been in this business for over 27 years and had "many" tough times but I learned from them and become a better manager of my finances this has become a very competitive business from when I started out, but most people out there are like Doctors are to us we don't like to change, and they will refer you and stick with you as long as you are honest and sincere with them as we have always been. I never got into this business to make a killing I got into it because I loved this business and I love to help folks out in need when I can, I worked for a boss in the early 70's that had the attitude if someone was hot and broke well "to bad" and I think God he was that way because that is why I am in my own business today, we all struggle with lots of everyday grinds of life but we must continue to fight during the hard times and learn how to live during these times, I used to tell folks we eat beans during the winter and steak in the summer so don't expect to keep your head above the water going into winter with a steak attitude I have seen many competitor fall with that attitude.

[tinknocker service tech]

hi
first i would like to thank all of you for your kind words and thoughts. i was supprized and they did make me feel better about myself. boss got word of me thinking about getting out and he and i talked for a long time about it.
we have become good friends over the years and i hate that man when he is right. he showed me letters he has recieve over the years about me from coustomers. a drawer full he said about two a month. told me if i left for another co. he could dael with it but to leave the trade it would be a mistake. he said he was impressed i was able to hold it together this long and should have done it ten years ago
when i got devorsed instead of beating a dead horse and carring all that det for so long from her. i may not be all that smart compared to some but i am a good tech and installer. the coustomers think so to i guess
god has a funny way of showing things and doing things
it would seem to be the best thing to happen after all
every thing left over from my marrage and devorse is no longer a burdon on me and my new relationship. now i can put it asise and move on the right way with out any thing from the past getting in the way. sucks being stuborne
found a place to move and the owner is a good friend that needs a tenent at least for a year. got a lot of support from some of my other friends like you also understand and say the same thing as my boss. go figure who knew not me
god does things strange but he does them
thank you all

[wormy]

Tin,

I was wondering if you were able to contact anyone at the web site I mentioned.

I listen to their radio program everyonce in a while.
They talk about how alot of people see filing for bankrupcy
to be the end of their problems, but its actually not.
If you haven't talked to them yet, I highly recommend it.
It would give you an awesome insite to get things back
on the right track.

Sounds like God's showed you a glimpse of what he could do
and how he could pull people together to help you out.

[tinknocker service tech]

wormy
i have
my email is in my profile if you like
there has been a lot of emotional support given from a few good friends and from my church. this is why my outlook is brighter and no it is not going to be easy but at least it will be a start not an end

[wormy]

Great to hear the good news.
Didnt' realize that was your email adress.
Thought it was a web address that led nowhere hehe.

Take care and hang in there. :)

[thehumid1]

Originally posted by tinknocker service tech
it is the little tube coming off the side of the valve and going to the suction line
your profile says nate certified for ac and heat pumps
so much for nate

LMAO I second that.

But I have a question wouldn't a TEV be a valve with no equalization as opposed to the TXV an externally equalized valve or am I destroying NATE's reputation too?

[Edited by thehumid1 on 05-06-2005 at 02:18 PM]

[mdman]

Originally posted by wormy
resolute

Get those brain cells to churnin.

What does the valve do if the suction line (sensing bulb) is cold and low pressure? Does it open or close?

What does the valve do if the sensing bulb is real hot and high pressure?

What is the temp of the sensing bulb and pressure that the equalizer tube seeing during heat pump operation?


After answering those questions and it 'clicks'... go here...
http://www.cfcc.edu/faculty/jpadgett/Unit%2024%20Expansion%20Devices.htm

I check out that URL, very good outlines. Did you attend Cape Fear? Wasn't that a horror movie title?

md