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Originally Posted by TnNate1412

True there is nothing like learning from experience, but also, you have to make the mistakes to learn from them. I'm not trying to be negative, but some people get their hands on a set of gauges who shouldn't have access to them. Again, I'm not saying anything bad about anyone! Continue learning everyday.

this is experience.

True there is nothing like learning from experience, but also, you have to make the mistakes to learn from them. I'm not trying to be negative, but some people get their hands on a set of gauges who shouldn't have access to them. Again, I'm not saying anything bad about anyone! Continue learning everyday.

And at 59 I am still learning more every day..... When you quit learning, you quit breathing!

I figure at 69 I know just enough to be dangerous.

Originally Posted by Leo

The one thing I remember from high school chemistry (1969) was a sign the teacher had. "The more you know, the more you know you don't know." It is so true.

this is funny. i think this all the time. especially this week. i have been installing a packaged unit on my restaurant and am not good with duct design yet. years ago i would have just slapped it together and it would have worked fine. now i struggle because i know too much but yet not enough, not even close.

Originally Posted by ifIknew

When checking SH R22 with Sman3 is There a need to hook up on the high side also or could I just leave it off?

Reading this thread, I don't mean this in a negative way but the best thing you could do is has been stated above about membership as well as having some real on the job training and apprenticeship. From your posts you really have some things you should learn before you even hook gauges up on another unit.

You can learn a lot on this forum with pro membership but it's still no substitute for studying the trade books and having somebody to mentor/apprentice you. Good luck.

The one thing I remember from high school chemistry (1969) was a sign the teacher had. "The more you know, the more you know you don't know." It is so true.

When checking SH R22 with Sman3 is There a need to hook up on the high side also or could I just leave it off?

I do have a lot to learn I know enough to mess up something.

X2

Originally Posted by Brent Ridley

You sound like you have a lot to learn and that's perfectly fine. This site has a ton of great info and is an asset to anyone in the field. These are great questions.

Apply for a pro membership. You have enough posts. Once a pro, you gain access to all kind of technical information and we can discuss your questions in a more "technical friendly" setting.

Originally Posted by ifIknew

Is the outdoor dry bulb the same as outdoor ambient temp?

You sound like you have a lot to learn and that's perfectly fine. This site has a ton of great info and is an asset to anyone in the field. These are great questions.

Apply for a pro membership. You have enough posts. Once a pro, you gain access to all kind of technical information and we can discuss your questions in a more "technical friendly" setting.

For all intents and purposes... Yes


Sent from my van

Is the outdoor dry bulb the same as outdoor ambient temp?

Originally Posted by ifIknew

Just wondering I tried too charge r22 with sman3 just using pressure because I was'nt sur about the target SH it was late at night. IS that the same as taking my old gauges and charging low side pressure to 65degF?. Starting Pressure was 45psi Well my SH ended up as 1 and my pressue was at 58psi. Think I overcharged it am going back to check on the unit it has a small leak. What should my super heat be on r22?

Your required superheat is going to depend on the indoor wb and the outdoor db, usually somewhere between 12-20



Sent from my van

Just wondering I tried too charge r22 with sman3 just using pressure because I was'nt sur about the target SH it was late at night. IS that the same as taking my old gauges and charging low side pressure to 65degF?. Starting Pressure was 45psi Well my SH ended up as 1 and my pressue was at 58psi. Think I overcharged it am going back to check on the unit it has a small leak. What should my super heat be on r22?

I may have been on the wrong screen I will look

This is the first fieldpiece equipment I have ever bought and because of you guys exceptional I will be buying more

I work for Fieldpiece. Give us a call at 714 634 1844.. We'll walk you through a couple of tests to determine the issue and get it taken care of. Thanks!

-Russ

Are you sure you are on the temp screen (T1,T2) and not the other screens that calculate SH/SC , saturation temp or the input for target SH

Try swapping the probes to see if the problem is the probe or the head.