1. Originally Posted by 21degrees
You know if you talk to yourself you might get better results. hacks only call other people hacks. Lets post pictures and see who is a hack.

You'll see why you are a hack.

2. ## Super heat is fixed

I always thought the super heat is fixed to approximately 8 to 12 degrees on TXVs systems. I do check dry bulb and wet bulb and then look at pressures using slide ruler and find what my sub cooling is. If it is a service call I will look at super heat For trouble shooting.
The reason I had a response like the one you see is I hate ignoran people. As far as 20* that is only on real hot days where you can achieve 20 * delta t

[QUOTE=mark beiser;1858928]So you don't take important diagnostic readings because you are in to much of a hurry?
You try to achieve a 20º td through the indoor coil based on what?
Do you actually take the airflow readings, return air DB and WB readings, and do the calculations to determine that the 20º td is appropriate? Or is it just a number you picked for all conditions?

3. Originally Posted by 21degrees
I always thought the super heat is fixed to approximately 8 to 12 degrees on TXVs systems. I do check dry bulb and wet bulb and then look at pressures using slide ruler and find what my sub cooling is. If it is a service call I will look at super heat For trouble shooting.
The reason I had a response like the one you see is I hate ignoran people.
It's only fixed between 8 and 12 if it's working correctly. When charging, you should be looking at both sides of the refrigerant circuit.

Step 1 - Verify airflow using the appropriate instrument.

Step 2 - Obtain Evap EWB, EDB, LWB, LDB

Step 3 - Obtain superheat and subcooling readings

Step 4 - Adjust charge as necessary.

As far as 20* that is only on real hot days where you can achieve 20 * delta t
It's 69&#176;F right now. There's a 22&#176;F DB dT across my indoor coil. I assure you the charge is dead nuts.

DB dT will lie to you if that's what you're using as a test without measuring WB.

Skipping any of those steps makes any adjustment of charge a guess.

4. if your not taking the time to check both sc and sh along with everything else your not doing a very good job. Maybe if you take off the running shoes and learn to walk before you run, you'd be more valuable in this industry. We already have enough problems with blow and go techs as it is.

What the hell does posting pics have to do with being a hack anyway? Maybe if you were applying you skills down here in south texas where we actually have some heat and humidity you'd have a better understanding of the various conditions that affect the refrigeration system.

5. ## What is it with you people from texas

Don't just read 1 post and jump all over a guy. I said I don't check super heat on new construction because that was the way I was taught. Just like your mother told you not to be shy because she wasn't. I was wrong and I will talk to instructor and ask why. As for high humidty, bring it on increase mt sales. Texas don't worry so much about what others do. Look after yourself.

6. Originally Posted by Texas-Tech
if your not taking the time to check both sc and sh along with everything else your not doing a very good job. Maybe if you take off the running shoes and learn to walk before you run, you'd be more valuable in this industry. We already have enough problems with blow and go techs as it is.

What the hell does posting pics have to do with being a hack anyway? Maybe if you were applying you skills down here in south texas where we actually have some heat and humidity you'd have a better understanding of the various conditions that affect the refrigeration system.

texas-tech, northern guys have their own set of challenges that you may or may not have seen.if you come and see -40 you may see a new set of challenges yourself.although i may not agree with 21degrees on some of his views but just because you have heat and humidity does't entitle you to be arrogant.you may yourself learn about various conditions that affect the refrigeration system

7. Originally Posted by cold in alberta
texas-tech, northern guys have their own set of challenges that you may or may not have seen.if you come and see -40 you may see a new set of challenges yourself.
I'll take hot summers and mild winters, you guys can keep the cold.

If I was ever exposed to -40&#186;, I think my thick Texas blood would freeze instantly, and I would fall over dead.

I do see a lot of things done here with the installation and repairs made on gas furnaces that often make me think that it is a good thing that furnace is being used in an area with mild temps, cuz someone would die if it had to run for long at a time...

8. lol-my sister lives in houston-i wish she had more room for another family of 4

9. that's funny. It hit 65 today and I was sweating my butt off!! I would have to get an office job in Texas!!

10. 66 right now and im in shorts and no shirt-lmfao

11. ## I am using superheat now

I have been told by more than 1 person that you can charge a residential systems with just using sub cool. But from this day forward I will be using superheat and sub cooling. I just hate it when a guy calls you a hack because you don't know better. Call me an idiot but don't call me a hack.

12. Originally Posted by 21degrees
I have been told by more than 1 person that you can charge a residential systems with just using sub cool. But from this day forward I will be using superheat and sub cooling. I just hate it when a guy calls you a hack because you don't know better. Call me an idiot but don't call me a hack.
My apologies.

You're an idiot.

Sorry. Couldn't resist.

Glad you were able to learn something.

13. And I do apologize for the name calling. Totally unnecessary on my part.

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