View Full Version : Pressure gauges
matt bauman
07-07-2010, 03:32 PM
I hooked up my gauges and after i let the system run for a little bit, i checked the gauges and they were buried? what could cause this? i dont know what im doing wrong. any advice?
saylor240
07-07-2010, 03:46 PM
Buried? I dont think it was running>>>> are you a tech?...
pdrake65
07-07-2010, 03:52 PM
Buried...in a vacuum? You sure you have the access ports opened? more details.
jpsmith1cm
07-07-2010, 04:29 PM
An evil dog has been running around trying to take my gauges.
I keep yelling at him.
Maybe he gave up and moved on.
:anyone:
crackertech
07-07-2010, 04:34 PM
With nothing in your profile I will assume your a DIY.And we don't give info out to DIY'S
matt bauman
07-07-2010, 04:50 PM
Buried? I dont think it was running>>>> are you a tech?...
not a tech yet, but have been going to school for two years now, im very capable of connecting the guages.
Yes it was running, i fliped the switch on the guage and both sides went clock wise til they were buried. You dont have any idea why?
matt bauman
07-07-2010, 04:53 PM
Buried...in a vacuum? You sure you have the access ports opened? more details.
yes the ports are open, if they werent, wouldnt there be no pressure reading?
crackertech
07-07-2010, 04:56 PM
Hey matt put some info in your profile you'll get more help here if we know a little something about you and what you do.
mallron
07-07-2010, 04:58 PM
22 gauges on a 410 system?
matt bauman
07-07-2010, 04:59 PM
With nothing in your profile I will assume your a DIY.And we don't give info out to DIY'S
whats a DIY?
spotts
07-07-2010, 05:02 PM
do it yo selffer.
cant wait to see where your gettin all that pressure. I think I know. :yes:
matt bauman
07-07-2010, 05:04 PM
22 gauges on a 410 system?
well i am using 22 guages, but the system is a Luxaire running a copeland compressor that is at least 20 years old so i took a stap at it and figured it was 22 there is no info on it because it is so old
matt bauman
07-07-2010, 05:06 PM
do it yo selffer.
cant wait to see where your gettin all that pressure. I think I know. :yes:
well at this point im going to school for it , im in my second year and plan on going to Ferris State in the fall, so im just getting as much experience as i can, doing odd jobs and such
tinner73
07-07-2010, 05:22 PM
you need more freeezone
Joe Harper
07-07-2010, 05:51 PM
This cant possibly end well...Im going home now..
crackertech
07-07-2010, 05:55 PM
Come on Joe stick around this could get interesting.
the dangling wrangler
07-07-2010, 06:02 PM
http://i29.tinypic.com/dvgcjb.gif
crackertech
07-07-2010, 06:05 PM
:LOL::cliff:
Home&Marine
07-07-2010, 06:41 PM
not a tech yet, but have been going to school for two years now, im very capable of connecting the guages.
Yes it was running, i fliped the switch on the guage and both sides went clock wise til they were buried. You dont have any idea why?
What Switch are you talking about? We have Lots of Ideas Why, what do you think? I'm betting the Compressor is running backwards. It would be the Second today.
matt bauman
07-07-2010, 06:50 PM
What Switch are you talking about? We have Lots of Ideas Why, what do you think? I'm betting the Compressor is running backwards. It would be the Second today.
not really a switch, the knob on the end of the hose that allows refrigerant to flow to the gauges. No the compressor is not running backwards atleast i dont think? How would that happen anyways?
Home&Marine
07-07-2010, 06:56 PM
not really a switch, the knob on the end of the hose that allows refrigerant to flow to the gauges. No the compressor is not running backwards atleast i dont think? How would that happen anyways?
http://squallyshowers.files.wordpress.com/2009/03/the-three-stooges.jpg?w=450
fotofx
07-07-2010, 10:01 PM
not a tech yet, but have been going to school for two years now, im very capable of connecting the guages.
Hmmm... That may not be a correct statement...
I vote for the compressor in reverse.. Maybe he should switch L1 to L2??
fotofx
07-07-2010, 10:04 PM
Two years in school... I wonder if they taught him yet about checking capacitors the old fashioned way like 9 volt batteries, with his tongue.
cg-vet
07-07-2010, 10:06 PM
Two years in school... I wonder if they taught him yet about checking capacitors the old fashioned way like 9 volt batteries, with his tongue.
When I regained consciousness, I said to myself "Yep, that capacitor is good"
ryan1088
07-07-2010, 10:11 PM
not really a switch, the knob on the end of the hose that allows refrigerant to flow to the gauges. No the compressor is not running backwards atleast i dont think? How would that happen anyways?
I think this happens to me once in a while when I have amnesia from the call before. Takes a minute to figure out then you cuss yourself. :censored: :beat:
jpsmith1cm
07-07-2010, 10:16 PM
Remove one hose and see what happens.
fotofx
07-07-2010, 10:19 PM
Remove one hose and see what happens.
I think he should remove both hoses and NOT see what happens..
tinner73
07-07-2010, 10:20 PM
Remove one hose and see what happens.
:ditto: you have too many hoses.
fotofx
07-07-2010, 10:24 PM
:ditto: you have too many hoses.
So really what you are saying is he is totally hosed..
jpsmith1cm
07-07-2010, 10:25 PM
I think he should remove both hoses and NOT see what happens..
What fun would that be?
jpsmith1cm
07-07-2010, 10:26 PM
So really what you are saying is he is totally hosed..
Maybe he's just a hoser.
matt bauman
07-07-2010, 10:27 PM
Is anyone on here capable of any worthwhile advice... or just so confused and dont want to admit they dont know , so instead they come up with some very bad jokes??
fotofx
07-07-2010, 10:30 PM
Is anyone on here capable of any worthwhile advice... or just so confused and dont want to admit they dont know , so instead they come up with some very bad jokes??
Sorry Matt, This is a public forum with strict rules about DIY. Get your post count up and apply for pro membership and we will be able to help in a non public area. We don't want to give any advice that could get you or someone else who is reading this hurt.
jpsmith1cm
07-07-2010, 10:35 PM
Is anyone on here capable of any worthwhile advice... or just so confused and dont want to admit they dont know , so instead they come up with some very bad jokes??
I will give you some very good advice.
Read this.
http://hvac-talk.com/vbb/showpost.php?p=1724874&postcount=1
Read it twice if you have to.
Yes, we sometimes give newbies a hard time, and we try to avoid putting info out there for DIYers to use.
We also like to have precise information in order to give you more precise help. If you tell me what the pressure gauges read and what refrigerant is in the unit, along with some temps, we have a LOT better chance of helping you rather than telling us that the gauges were 'buried'.
crackertech
07-07-2010, 10:36 PM
:ditto:
matt bauman
07-07-2010, 10:44 PM
I will give you some very good advice.
Read this.
http://hvac-talk.com/vbb/showpost.php?p=1724874&postcount=1
Read it twice if you have to.
Yes, we sometimes give newbies a hard time, and we try to avoid putting info out there for DIYers to use.
We also like to have precise information in order to give you more precise help. If you tell me what the pressure gauges read and what refrigerant is in the unit, along with some temps, we have a LOT better chance of helping you rather than telling us that the gauges were 'buried'.
Its R-22, I am definately a newbie but this is the field im going in as well, so im trying to learn all I can but this sight seeems to make it very hard. Its an old system, im basically just practicing on it. When I say the guages are buried , Im sayin the low side swings to 350psi and the high side swings to 500psi. I know this system is low on refrigerant but I dont know why im getting these readings.
matt bauman
07-07-2010, 10:47 PM
Sorry Matt, This is a public forum with strict rules about DIY. Get your post count up and apply for pro membership and we will be able to help in a non public area. We don't want to give any advice that could get you or someone else who is reading this hurt.
ok, can you tell me what you mean by getting my post count up? sorry, u can see im pretty new to this sight...
crackertech
07-07-2010, 10:47 PM
Its R-22, I am definately a newbie but this is the field im going in as well, so im trying to learn all I can but this sight seeems to make it very hard. Its an old system, im basically just practicing on it. When I say the guages are buried , Im sayin the low side swings to 350psi and the high side swings to 500psi. I know this system is low on refrigerant but I dont know why im getting these readings.
And the plot thickens.
matt bauman
07-07-2010, 10:48 PM
Sorry Matt, This is a public forum with strict rules about DIY. Get your post count up and apply for pro membership and we will be able to help in a non public area. We don't want to give any advice that could get you or someone else who is reading this hurt.
I understand that this is a public sight and you dont want people to get hurt, but how would telling me why im getting these reading get anyone hurt? i didnt ask to tell me what to do, just why is this happening?
fotofx
07-07-2010, 10:58 PM
Matt, just attaching gauges can be VERY dangerous. You only need 15 posts to apply for pro membership. You are almost there. If your gauges are actually showing what you say they are, then something has caused the pressures to be extremely higher then what the system was designed for. Any number of things at this point could occur that may well leave you permanently disabled or worse. In my opinion you should get someone with experience to look at it. Even if you watch, it would be allot safer.
matt bauman
07-07-2010, 11:01 PM
Matt, just attaching gauges can be VERY dangerous. You only need 15 posts to apply for pro membership. You are almost there. If your gauges are actually showing what you say they are, then something has caused the pressures to be extremely higher then what the system was designed for. Any number of things at this point could occur that may well leave you permanently disabled or worse. In my opinion you should get someone with experience to look at it. Even if you watch, it would be allot safer.
bad compressor?
fotofx
07-07-2010, 11:04 PM
I really hate to even ask this but do you know how many amps the compressor is drawing? How about a model number? Temps?
matt bauman
07-07-2010, 11:11 PM
I really hate to even ask this but do you know how many amps the compressor is drawing? How about a model number? Temps?
lol dont worry, electrical is more my field, i have it all written down but its all in my truck
matt bauman
07-07-2010, 11:12 PM
I really hate to even ask this but do you know how many amps the compressor is drawing? How about a model number? Temps?
which temps?
do you have your EPA certs?
matt bauman
07-07-2010, 11:17 PM
do you have your EPA certs?
sure do bud...universal
fotofx
07-07-2010, 11:19 PM
Matt, Have you covered pressure/temperature charts in school yet?
matt bauman
07-07-2010, 11:21 PM
Matt, Have you covered pressure/temperature charts in school yet?
yes. im only one class from my associates.. i just need this duct construction class and im off to Ferris
sure do bud...universal
:eek2: ok get the info everyones asking for... apply for PRO member status and your questions shall be answered.....
fotofx
07-07-2010, 11:26 PM
Again, considering this is an open forum...
A few thoughts.. OK maybe a hint..
Refrigerant
Temperature
Pressure
If you know two of them, you know what the third SHOULD be.. (Usually).
If the third is not right then one of the others is not right.
fotofx
07-07-2010, 11:28 PM
http://chaosandoldnight.files.wordpress.com/2008/03/the-riddler.jpg
spotts
07-08-2010, 12:56 AM
Again, considering this is an open forum...
A few thoughts.. OK maybe a hint..
Refrigerant
Temperature
Pressure
If you know two of them, you know what the third SHOULD be.. (Usually).
If the third is not right then one of the others is not right.
:angel:
pdrake65
07-08-2010, 04:40 PM
Its R-22, I am definately a newbie but this is the field im going in as well, so im trying to learn all I can but this sight seeems to make it very hard. Its an old system, im basically just practicing on it. When I say the guages are buried , Im sayin the low side swings to 350psi and the high side swings to 500psi. I know this system is low on refrigerant but I dont know why im getting these readings.
Have you verified your readings using a different set of guages? I would be EXTREMLY careful on this one. Your pressure is off the charts.
cg-vet
07-08-2010, 07:47 PM
Have you verified your readings using a different set of guages? I would be EXTREMLY careful on this one. Your pressure is off the charts.
I've had that happen before. Put the guages on and the high side gauge sprung on me making me think I had high head pressure. Told the customer I would have to come back due to prior service commitment. Put my gauges on at the next service call and see the same pressure reading. Oops. First customer was greatly relieved to find out there was no problem.
supertek65
07-08-2010, 07:55 PM
SWITCH??
not a tech yet, but have been going to school for two years now, im very capable of connecting the guages.
Yes it was running, i fliped the switch on the guage and both sides went clock wise til they were buried. You dont have any idea why?
fotofx
07-08-2010, 08:46 PM
I've had that happen before. Put the guages on and the high side gauge sprung on me making me think I had high head pressure. Told the customer I would have to come back due to prior service commitment. Put my gauges on at the next service call and see the same pressure reading. Oops. First customer was greatly relieved to find out there was no problem.
He said BOTH gauges went full over. Cant imagine both going at the same time.
the dangling wrangler
07-08-2010, 08:47 PM
SWITCH??
What, you mean you don't have switches on your gauges?
Pascone10
07-08-2010, 09:06 PM
What, you mean you don't have switches on your gauges?
I have buttons, Does that count?:yes:
supertek65
07-08-2010, 09:06 PM
i guess i am just tooo old and not up or down with the modern lingo and tools of the trade?????????????:couch:
What, you mean you don't have switches on your gauges?
supertek65
07-08-2010, 09:10 PM
http://www.dojoperformance.com/images/arming-switch-20317-main.jpg
What, you mean you don't have switches on your gauges?
the dangling wrangler
07-08-2010, 09:26 PM
http://www.dojoperformance.com/images/arming-switch-20317-main.jpg
That's one good lookin' switch, if I do say so.
supertek65
07-08-2010, 09:28 PM
no seriously!!!!!!!!!!!!
that is a sexy switch!!
think ill order one:couch:
That's one good lookin' switch, if I do say so.
the dangling wrangler
07-08-2010, 09:30 PM
no seriously!!!!!!!!!!!!
that is a sexy switch!!
think ill order one:couch:
Glad I wasn't the only one that thought that.
tiger man
07-08-2010, 09:34 PM
i believe that the compressor is out on thermal overload, based on the vague description by matt
fotofx
07-08-2010, 09:39 PM
i believe that the compressor is out on thermal overload, based on the vague description by matt
Uhhh... No..
supertek65
07-08-2010, 09:44 PM
UHHHHHHHHHHHHHHHHHHH NOOOOOOO!!!!!!!!!!!!!!!!
LOL!!!!!!!!!!!!!!!!!!!!!!!!!!!!:playing:
Uhhh... No..
fotofx
07-08-2010, 09:46 PM
i believe that the compressor is out on thermal overload, based on the vague description by matt
Let me point something out... Most analog gauges will read up to 500 psi on the high side. If the compressor was on thermal the pressures would equalize. Meaning that both low and high would have to be over 500.
Unless this R22 system is Satan's I don't think he would have the required temp to equalize at over 500.
supertek65
07-08-2010, 09:51 PM
is that when you turn on the switch?????????????:playing:
Let me point something out... Most analog gauges will read up to 500 psi on the high side. If the compressor was on thermal the pressures would equalize. Meaning that both low and high would have to be over 500.
Unless this R22 system is Satan's I don't think he would have the required temp to equalize at over 500.
fotofx
07-08-2010, 09:53 PM
is that when you turn on the switch?????????????:playing:
The hell with the switch... At 500 static, I RUN....
jpsmith1cm
07-08-2010, 09:56 PM
The hell with the switch... At 500 static, I RUN....
Not too fast, it's liable to be pretty hot....
Maybe smarter to not get close to a system that is that hot.
ConnieB
07-08-2010, 09:59 PM
Hi I have a question....I know this is a pro site, and I would appreciate a little understanding if possible. We just purchased a Lennox XC13 after three weeks it froze up. The installers came out and fused it with 21/2 lbs of freon. The not even a week later (last night) the pressure went to 160/550 according to the installer the high pressure switch went out on it. He said he reset it to 150/375 and by passed the switch. And will have to come out tomorrow and install a new switch. Would it be possible for someone to tell me why a switch would go bad on a brand new unit not even a month old. I couldn't really understand (language barrier, don't speak spanglish) but it sounded like the installer told me that the air outside was TOO HOT so the compressor switched off??? It was late so I couldn't get anyone from the office (or manager) on the phone. Just trying to figure out if we may have a bad unit. Thanks for any input.
fotofx
07-08-2010, 10:00 PM
Not too fast, it's liable to be pretty hot....
Maybe smarter to not get close to a system that is that hot.
Had a helper once that was leak testing a system with me. I set the nitrogen regulator and just wanted him to open the valve when I got upstairs. When he opened the valve he saw the pressure drop so he turned the regulator up. :oops:
Near as I could tell we had about 1000 psi in that thing.. Found the leak though..
jpsmith1cm
07-08-2010, 10:02 PM
Hi I have a question....I know this is a pro site, and I would appreciate a little understanding if possible. We just purchased a Lennox XC13 after three weeks it froze up. The installers came out and fused it with 21/2 lbs of freon. The not even a week later (last night) the pressure went to 160/550 according to the installer the high pressure switch went out on it. He said he reset it to 150/375 and by passed the switch. And will have to come out tomorrow and install a new switch. Would it be possible for someone to tell me why a switch would go bad on a brand new unit not even a month old. I couldn't really understand (language barrier, don't speak spanglish) but it sounded like the installer told me that the air outside was TOO HOT so the compressor switched off??? It was late so I couldn't get anyone from the office (or manager) on the phone. Just trying to figure out if we may have a bad unit. Thanks for any input.
Yes.
Call a real contractor. Sounds like you have landed yourself a hack.
Good luck.
jpsmith1cm
07-08-2010, 10:02 PM
Had a helper once that was leak testing a system with me. I set the nitrogen regulator and just wanted him to open the valve when I got upstairs. When he opened the valve he saw the pressure drop so he turned the regulator up. :oops:
Near as I could tell we had about 1000 psi in that thing.. Found the leak though..
I can't get my regulator over 500#
fotofx
07-08-2010, 10:02 PM
Hi I have a question....I know this is a pro site, and I would appreciate a little understanding if possible. We just purchased a Lennox XC13 after three weeks it froze up. The installers came out and fused it with 21/2 lbs of freon. The not even a week later (last night) the pressure went to 160/550 according to the installer the high pressure switch went out on it. He said he reset it to 150/375 and by passed the switch. And will have to come out tomorrow and install a new switch. Would it be possible for someone to tell me why a switch would go bad on a brand new unit not even a month old. I couldn't really understand (language barrier, don't speak spanglish) but it sounded like the installer told me that the air outside was TOO HOT so the compressor switched off??? It was late so I couldn't get anyone from the office (or manager) on the phone. Just trying to figure out if we may have a bad unit. Thanks for any input.
Could be a multitude of things. If you do not have faith in the tech, call them and get a supervisor out.
supertek65
07-08-2010, 10:03 PM
watch this utube video
go to 4 min 08 seconds :couch::pop::pop::pop:
The hell with the switch... At 500 static, I RUN....
fotofx
07-08-2010, 10:05 PM
I can't get my regulator over 500#
If I turn mine in all the way it seems to go wide open. Always thought that was kind of strange.
fotofx
07-08-2010, 10:05 PM
watch this utube video
go to 4 min 08 seconds :couch::pop::pop::pop:
Link missing..
Bart Vaio
07-09-2010, 12:57 PM
If the tech's name is "Unit" then yes you might have a bad unit. You might want a second look at this new install.
Sarwiz
07-09-2010, 01:51 PM
To ConnieB: your "tech" is not a tech, but a hack! Get someone out there that has a clue (would NEVER bypass a high pressure switch, for one...).
To Matt: your terminology makes you sound like a DIY'er, and I just recently was in an accelerated training environment and we used the correct terminology there at all times. If you are that close to your "associates", you should know that switches apply to electrical (primarily) and "valves" apply to fluid or vapor movement. I have "valves" on the end of some of my hoses, and LLF's on the rest. There are no switches involved in a guage manifold (unless maybe a digital one, but don't have one yet). If pressures are "maxxing out" on the guages, they should have taught you in troubleshooting 101 what the cause would be. I am also a student, and just this year got my 608 universdal and 609 certs. but have been on the warmer end of hvac for about 15 years on and off. I don't work in the trades , but as a building "engineer" for a branch of the govt, and am receiving some excellent training from them. I have read this post in it's entirety, and you should go back and read markettech's ( http://hvac-talk.com/vbb/showpost.ph...74&postcount=1 ) post about 4 more times. I am also working on getting my post count up to apply for pro membership. These guys here really do know their stuff, but I appreciate them not just giving it out to every DIY'er that comes along. Respect them, do what they say, go pro, then your questions will be answered. :bhave:
ConnieB
07-09-2010, 04:44 PM
Thank you Swariz. We contracted a reputable company for the install or thought we did. I took the first pro's advice after they sent 3 "hacks" and requested a supervisor. He is here as I type so we will see...... Connie
pdrake65
07-09-2010, 06:47 PM
Hmmm. I seem to see alot of people who aren't qualified to do this kind of work giving alot of hard working people issues (can't say "hack" because i'll get in trouble again!)
It gets me frustated in many ways.
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