Guage readings

[uson]

Im trying to interpret superheat from the discharge and suction guages. If the discharge is reading high, how do you interpret superheat from this reading? What varibles must you first know in order to interpret superheat?

[return fan]

check amazon.com for this book, better to read for yourself manytimes

Refrigeration and Air Conditioning Technology, 5E (Hardcover)
by Bill Whitman, Bill Johnson, John Tomczyck

[psychometric]

What is it that you do for a living

[re2ell]

Originally posted by uson
Im trying to interpret superheat from the discharge and suction guages. If the discharge is reading high, how do you interpret superheat from this reading? What varibles must you first know in order to interpret superheat?



uson, you'd better research superheat a little bit. pick yourself up an Alco pocket pressure-temperature chart, you will find the instructions for obtaining superheat there.

[jimbob73]

Originally posted by psychometric
What is it that you do for a living

Hopefully not HVAC

[enart9591]

uson, you sound like your new to the industry. My advise to you is to either go to school for basic refrigeration theory (classroom or correspondence) or step away from the unit.

[uson]

Nice crowd. Thanks but no thanks for the "help". I asked an engineer at work, he provided a much better answer than any of you. I suggest you hit the books as well. I dont need to provide you with any information about what I do for a living. I was always told there is no such thing as a dumb question. I dont touch the machine so there is no risk of an accident.
Im sure your going to huff and puff and get your panties all in a wad, but thats how people like you (losers) react. I dont have much tolerance for such types. If your not going to provide the answer Im looking for, then Im going to look elsewhere. Ive wasted too much time with people who want to withhold information because the same thing was done unto them and they want you to experience that as well.

[RichardL]

With such an attitude as that Uson, it is very unlikely you will be obtaining a great deal of our dark & deep trade secrets.
These guys share with their "Peers" almost any thing asked of them...
You Sir, have alienated at least one on these pages by your attitude & response to one of "My" peers.

[razorback]

Good-bye.

[metalguy]

In order to get superheat, read the suction gauge. Then read what the corresponding temperature is from a temperature/pressure chart to get the corresponding temperature. Don't rely on the gauges for the temp because they aren't that accurate.

Measure the temperature of the suction line as it leaves the evaporator (best method). The difference is the superheat.

Some techs take shortcuts by taking the temp reading at the condenser. On long lines, you may pick up 2-3 additional degrees (or more) so don't do it.

[return fan]

i thought i gave good advice, all the answers to your questions and other questions are in the book i recommended

[uson]

Apologies to all those I offeneded, however responses like "step away from the machine" or "I hope your not working in HVAC" do me no good. I have to occasionally take chiller readings and Im not clear on how to interpret them. Some of the other operators are not as well. I asked an engineer to clear it up for me.

[paidpiper]

Uson is right, why are a group of professionals being so unprofessional in the thread instead of answering the question.

[techrider]

uson
You can e-mail me and I'll help if I can. Address is in my profile.

[enart9591]

technically, I said, "step away from the unit" not the machine. It was my way of saying that the question you are asking shows that you do not have any basic refrigeration theory and attempting to learn that theory on a chat site is unrealistic.

[uson]

unit or machine...same thing just semantics. Thanks anyway and for all those who were sincere in their help, its appreciated.