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High Head Pressure? What have I gotten myself into!

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Discussion starter · #21 ·
I'm sorry you take offense to my replies as they are not directed at the ones who have provided the much appreciated information, but rather at the ones who have been unhelpful and provided smartass comments that I did not ask for or wish to hear.
 
#22 ·
ZeroTolerance said:
Thank you. I will replace the fan, then take pressure readings to see if that resolved the problem.
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Zero,
Please do not leave mad that would be counter productive. Let us know what the outcome is. You being new here its easy to get the wrong impression of these guys. Believe it or not most of them are more then willing to lend you a hand. After reading your last posts we now know a little more about you. Every day DIYERS come here looking for advice. How is one to know from just one post. Get your post count to 15 and get Pro Membership. Our family is waiting to extend a hand. :CU:
 
Discussion starter · #23 ·
Thanks VTP I appreciate that. I'm not going anywhere. I can take the abuse and dish it right back, as I have to with many of my subs until they push me to the point of me no longer using them. Its part of the job.
 
#24 ·
I was at a nationwide chain for dinner the other night. I ordered a chesseburger, medium well. Since i am an hvac tech, I had a pocket thermometer, and since the burger looked really pink, i checked the inside temp of the meat. It was rare. It was not what i ordered, so since cookng isnt rocket science, i decided to go back into the kitchen and cook it correctly myself. Boy did they get pissed. The district manager scolded me, because of things like liability of a nonemployee using their kitchen equipment, the dangers of cooking with unclean hands, the fact that a kitchen in genral is a busy place, and so on. Wait, I cook at home and havent had a problem, why is it a problem for me to cook here? next time, i will bring my own food, cook it here, and just pay for use of the gas and plate rental. He WAS NOT AMUSED!! I then wnet online to ask question at the national chain restaurant cooking website and boy di they blast me for even going there. They must be a group of a holes right?
 
#25 ·
Name calling is not very profesional. The class that you took for your Universal 608 card deals with refrigerant recovery only. It was not meant to be an apprenticeship class that takes 4 years. Again, this site is for profesionals to learn from and help other profesionals.
 
#26 ·
ZeroTolerance said:
A/C is not rocket science maybe that is why people are so reluctant to help, cause they are afraid others will get into the business. I have repaired my home A/C unit and friends/family A/C units and they are still running strong. Making sure to replace the filter drier every time I evac the system and follow the proper procedures to repair a system. I know the procedures on how to repair a unit checking temps/pressures, checking amps of fans and compressors, checking electrical (system getting signal from thermostat), charging the system (weigh in method on critical units, approach method, subcooling, superheat), charging only liquid when using near azeotropic (even ones with lower glide temps that tend not to fractionate - R-404, etc), zeotropic, and azeotropic (R-500 series even though they tend not to fractionate) blends, using vapor or liquid charging when using a single compound refrigerant "R22, R12,and R134" being sure to throttle it in as a liquid when the system is running on the suction side to not blow the compressor), brazing (replacing system components), checking the system for leaks using a halide detector, soap bubbles, or other, purging the system with nitrogen and adding R-22 to find leaks, vacuuming the system (triple vacuum method, etc), recovering refrigerant (push-pull method, liquid method, vapor method, etc), checking proper CFM, etc; I just do not know how to tell if a TXV/TEV or capillary is clogged or a filter drier, etc. But I dont need to explain myself all I was looking for was a simple quick answer to my problem.

I'll figure it out
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You say that you can do all these things and imply by doing so that you are intimately familiar with the processes and practices that each entails. Yet you can't figure out that cutting the airflow in half on your condenser is going to cause the head pressure to go up. Then you have the audacity to call me and those who share my point of view smartasses when we point out that something may be lacking where your proficiency in this field is concerned and it would probably be in your best interest to get some experienced help.

You're correct in saying that hvac/r isn't rocket science, but by doing so you are implying that any idiot (i.e.: *******) can do this. So my question to you is, if any idiot can do this...........................well?
 
#27 ·
I am headed to lunch. On my way to the sandwich shop, i will be stopping at the supermarket to pick up a quarter pound of ham, and two slices of cheese, this way, I can make my sandwich using my own meat purchased locally and save markup on the meat and cheese. I wil; use their roll, as they only pay fiftee ncents each, and surely wont charge me more than a quarter. the lettuce, tomatoes and onions dont cost much so i will pay for them as well. doing this saves me a lot of money on my daily lunch costs, plus, making sandwiches isnt really rocket science, so why should i pay them full price? i am sure the owner of the sandwich shop will be happy to get my business though, as you know times are tght. at least he gets something....
 
#28 ·
Thanks you guys, I can always count on you to raise my spirits. I was getting kinda down from trying to instruct an "exuberant" apprentice who wants to know all the answers now so that he doesn't have to think when I came across this thread. Very timely indeed. I appreciate so much the fact that someone like Klove takes the time to participate not only in the pro forums but in these open forums. I have learned a great deal from him and others and that learning has meshed nicely with my training and decades in the field. I send my apprentices here in their spare time to learn a little but it's the rare one that takes the time to go through the educational forums without a paycheck attached. I agree that the first step is to get some training appropriate to HVAC service if that is what you are taking on. That is the starting point, then you need to work with someone who has experience, grow your own knowledge base and apply what you have learned in the field. Sending someone untrained in HVAC to repair and recharge a unit seems foolhardy, once it is charged there are many parameters to review to ensure that it is operating efficiently. Not realizing that a failed condenser fan could be causing a high pressure problem is kind of a red flag that there may be some holes in your knowledge, not specifically but fundamentally.
 
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#29 ·
ZeroTolerance said:
Listen... I did not ask for a step by step DIY instruction booklet.

And Home & Marine if its been working for 8+ years and just went bad I super highly doubt its the wiring.

A/C is not rocket science maybe that is why people are so reluctant to help, cause they are afraid others will get into the business. I have repaired my home A/C unit and friends/family A/C units and they are still running strong.

I'll figure it out
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Go For It. I have no idea why you Wasted your time coming here to ask. I'll speak for a bunch of us, but we are absolutely not concerned about you taking any of our business... You are going to make business for us.

Good luck on solving your problem!

P.S. I never said it was the wiring. If you knew anything about 3 phase power you'd know what I was referring to. From your original post, I thought you Replaced the CFM but farther down, not yet.
 
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#30 ·
Welcome to the club

ZeroTolerance said:
I'm sorry you take offense to my replies as they are not directed at the ones who have provided the much appreciated information, but rather at the ones who have been unhelpful and provided smartass comments that I did not ask for or wish to hear.
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Zero-

Consider yourself initiated. Until you get your 15 posts and apply for pro membership you can expect this kind of treatment. Not only do we want to ensure that you are really part of this trade, we want to make sure that your skin is thick enough to survive these forums. They are no for the faint-at-heart.

I personally do not disagree with what you are doing or trying to do. I do not find fault with you trying to learn the HVAC trade and better yourself and expand your knowledge base. What you are running into is the rules of this particular forum.

I think that if you would take a step back for a moment and read the rules of this site, you would gain an appreciation of where some of these guys are coming from. They are not trying to keep you out. Remember that what gets posted here is visible to the whole world. Any homeowner, no matter how mechanically uninclined they might be can read this and attempt to repair his own equipment and injure himself or others.

The way to get your questions answered in a manner that you might expect is to get your post count up and apply for pro membership so that this discussion can be posted in a non-public forum where we all can learn.

We are actually here to help you. We also hope that you can add to our community here as well. You just need to prove that you are one of us.

Hope this helps to get things in perspective.
 
Discussion starter · #31 ·
I solved the problem. Thanks for the advice :) Units running nicely

I know a bad condenser fan causes head pressure but I did not know it could increase it drastically by 125-150PSIG
And yes there is voltage on all 3 legs

Joemach - I now understand and have read the rules, but people don't have to be dicks about them. A simple "I'm sorry, we do not offer that advice to the public" would have been nice. Also my dad was raised in Midway, PA. Go STEELERS!
 
#32 ·
Thanks for sharing the result

ZeroTolerance said:
I solved the problem. Thanks for the advice :) Units running nicely

I know a bad condenser fan causes head pressure but I did not know it could increase it drastically by 125-150PSIG
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Glad to hear that you got it going.

Something learned !
 
#33 ·
ZeroTolerance said:
Joemach - I now understand and have read the rules, but people don't have to be dicks about them. A simple "I'm sorry, we do not offer that advice to the public" would have been nice. Also my dad was raised in Midway, PA. Go STEELERS!
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So we've gone from ******** to smartasses to dicks in the length of one thread. We're evolving rather quickly, wouldn't you say? And all because you're not proficient enough to figure out that cutting half of your airflow will cause the head pressure to rise dramatically.

After the way you've handled things here, I'm beginning to understand why you had to be a do-it-yourselfer..........................
 
Discussion starter · #34 ·
They all correlate except ********. I just know AL to be the capital of ********, but I would like to retract that comment as you might not be one and got heated when that was written. As I should have remained professional but was caught up in the moment. :beat:.

Say what you want. I'm here to learn and feel I have a pretty good understanding on HVAC-R equipment. I just need to fine-tune my knowledge. And you know what? I now know that a single bad condenser fan can drastically increase head pressure. :)
 
#35 ·
VTP99 said:
Time,
I don't believe your first line but i do believe the rest. You must admit its easy to be exuberant in this line of work. :yes:
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No, I actually did stop reading at that point. I didn't have the time or the patience to read further, and I thought I would have a better chance of remaining cordial if I stopped right there, so I did.

And while the fan did get replaced and "no harm done," I have to say that we should resist the multiple temptations, whether we are "regular members" or "pro members," to give too much instruction in the open forums. The truth is that none of us know this guy, nor anything about him. The fact is that this could have turned out differently, and while not our "fault," that proverbial fan can throw that stuff in all directions.

Heck, let the guy get qualified and we can do this stuff in Pro Technical.

JMHO.
 
#36 ·
ZeroTolerance said:
I just know AL to be the capital of ********,...
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I was given a very good piece of philosophy once by a wise old man and I feel compelled to pass it along to you at this time: "When one finds oneself in a hole, it's best if one stops digging."

You just don't have a clue as to when to shut up, do you? You call me a *******, a smartass, and a dick, and now you're going to start making disparaging remarks about the residents of an entire state!!! All because you don't know how to fix an air conditioner!!

How is it that you "just know" that Alabama is the "capital of ********", oh Wise One? Why don't you enlighten us poor ol' uneducated, dirt road, backwoods hillbillies by tellin' us where you came up with this incredibly stupid statement. It's hard for me to believe that there's actually a legitimate company out there that would have a manager working for them that would even contemplate making a comment such as this, much less one that would put their mouth in gear while their brain was still at home in the bed and actually say it. You've taken childishness to a whole new level from anything I've seen here before.

Ball's in your court, scooter. Come up with somethin' good so you can show us how superior folks from Texas are.......
 
#38 ·
Im surprised no one touched on the evacuation process. So after the four years of apprenticeship and 10 years in the trade I now know that 2 hours is a good rule of thumb for proper evacuation and you dont really need this micron gauge after all.:couch:
 
#39 ·
cooks services said:
Im surprised no one touched on the evacuation process. So after the four years of apprenticeship and 10 years in the trade I now know that 2 hours is a good rule of thumb for proper evacuation and you dont really need this micron gauge after all.:couch:
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Very astute observation. I think this point falls under the heading of "Am I truly qualified to be doing this type work?".
 
Discussion starter · #40 ·
The system was left open to the environment for quite some time before I got to it and the moisture content in Dallas is rather high. So with all those variables in place, and me not owning a $250 micron gauge to tell me if the system has gotten down to 500 microns, I figured 2 hours at a 35Hg vacuum would suffice, maybe should have let it run for 3. This along with a fieldpiece HG1 will be my next investments. Already have about 2grand invested in tools, gotta take it slow.
 
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