#12 is AAC's go to man on all things A/C

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#12

Joined Nov 30, 2010
18,224
All man A/C!
That's easy enough. Either the men change their natural metabolism rate or the women bring a sweater.:D

Actually, the idea that men should suffer just because women want to get their way with no effort at all, that is, by placing the entire burden on men, is a symptom of the hypergamous* belief system. "I am female and I want it, therefore men must give it to me." Air conditioners aren't sexist, nature is! Nature made people have different basal metabolism rates. When the workplace was mostly male**, the standards were set for the majority population. Now, there are more women with jobs. I don't know which is the majority population in that building, but people can't change their basal metabolism just because a woman (or a lot of women) want(s) them to.

*Hypergamy is being used to describe a cultural tendency to accede to women. This usage is so new that the online dictionaries do not know about it, yet. I think this started a very long time ago because women are mothers and their children learn that she is the authority figure, and she is almost always correct. When she isn't correct, she still has the most power in the relationship. Feminism encourages this system in the adult world, but it has its limits. "I'm female and I said so" is not the equality feminism pretends to desire, but I think it is a habit and a cultural norm.

** I say, "mostly male" as opposed to "male dominated" because men don't dominate places or people just by existing.

Domination is a word denoting power:
1.
a.
Control or power over another or others.
b. The exercise of such control or power.
1. the act of dominating or state of being dominated
2. authority; rule; control

I believe that pretending men dominate just by existing is a lie intended to validate an undeserved victim stance. It would be equally fallacious if the genders were reversed. Try this on: "The female dominated shopping district is an inherently hostile environment for men."

Hmmm...doesn't sound right, does it?
 

Thread Starter

#12

Joined Nov 30, 2010
18,224
So you're turning this into a project? You're going to design the new control system, PCB and all?
What project? I have done this job for so long that I have the schematic in my head. I can draw it from memory and I'm not going to make a circuit board. I'm going to do it in analog, so to speak. No digital chips, no DC power supplies. Just relays and some j-fet based timer circuits. All modular. Any part can be replaced for $10 and some of them can be bypassed while running to the parts store or waiting for Monday when the stores open. We don't need no stinkin' microprocessors, or the $100 price tag that comes attached to them and their proprietary software.:mad:

I've been threatening to amputate this MPU since the day I bought this A/C and this is the perfect stimulus to get me to act. Both of my boards are compromised, I can't buy some of the necessary parts, and I couldn't install a new board if I bought one. Can you think of a better reason to re-design it?
 

cmartinez

Joined Jan 17, 2007
8,838
What project? I have done this job for so long that I have the schematic in my head. I can draw it from memory and I'm not going to make a circuit board. I'm going to do it in analog, so to speak. No digital chips, no DC power supplies. Just relays and some j-fet based timer circuits. All modular.
I still don't have a clear picture of what you're planning to do... I'd be very interested in seeing the steps you're going to take to replace that board.
We don't need no stinkin' microprocessors
... said the Sierra Madre AC bandits...
 

Thread Starter

#12

Joined Nov 30, 2010
18,224
I still don't have a clear picture of what you're planning to do... I'd be very interested in seeing the steps you're going to take to replace that board.
I'll show you when I get time to make a .png of it.
Right now I have to run an errand for the wooden leg store. They can't get the Dr. to respond so I'm going to drive over there and stimulate him into doing the paperwork.:D
 

wayneh

Joined Sep 9, 2010
18,135
All man A/C!
LOL. Two comments from personal experience. 1. Those gals should ask their menopausal mothers for comment.

2. In my office, the women were always complaining about the temperature so our electrical guy installed a thermostat on the central post. The women were thrilled and the complaining stopped. Thing is, the thermostat didn't do anything! So it wasn't about the temperature, it was about the perception of having control. Decades later when the office was being rebuilt, I was the only one left to explain to the new electrician why there was an unconnected thermostat. Once I explained, he wasn't even a little surprised.
 

Thread Starter

#12

Joined Nov 30, 2010
18,224
I still don't have a clear picture of what you're planning to do... I'd be very interested in seeing the steps you're going to take to replace that board.
Here's the png. I have the 3 minute lockout circuit but I haven't designed the 3 minute fan persist circuit.

ps, @cmartinez The fault lock-out circuit is entirely my design. Most of the rest is a generic schematic used in hundreds of thousands of air conditioners. The (2) time delays were produced by the MPU but I can do them in analog. One of them protects the compressor from a locked rotor attempt to start and the other provides a tiny boost in efficiency by running the interior fan until the last drop of cold is sucked out of the evaporator coil. The alleged thermostat is a crude approximation of a real thermostat, but it should convey enough information about the switching functions. My house is so tight that I don't need the 10KW heat function, so I am cutting it down to 5KW. That eliminates a second stage, time delayed start up for the second 5KW nichrome heater.
 

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Thread Starter

#12

Joined Nov 30, 2010
18,224
Hi #12. Is there a way to send a Private message on this site. I am new to the site and I had a question for you.
I don't think you can do that with a zero post count.
I prefer technical conversations be held in public because that's what this site is for.
Now I will, "report" myself and ask the Moderators what the rules are for PM use.
 

bertus

Joined Apr 5, 2008
22,994
Hello,

New members with less than 10 posts can not start a conversation (PM).
They can respond to a conversation started by a senior member.

Bertus
 

ScottWang

Joined Aug 23, 2012
7,504
Hi #12. Is there a way to send a Private message on this site. I am new to the site and I had a question for you.
If you have any questions about EE that you want to ask then you can visit https://forum.allaboutcircuits.com/ and post your question on the forum to choose the one to match your question, if you have any questions about the rules of this site, please go to check
Terms of Service and Rules and User Agreement.

If you still can't get the answer then please post your question on Feedback and Suggestions.

Although we don't inhibit the member to ask the questions through PM, but the new members has a limited at least 10 post, otherwise you can't contact the other members through PM, and the best way is that you ask the questions on the forum in public, that's why this site created for, your any questions also could be other member's question and any reply from members or moderators can be other member's reference, so post your questions in public is the good way to go.
 

Thread Starter

#12

Joined Nov 30, 2010
18,224
I'm getting underwear ads everywhere I go.
Is that what it's like to have a "smart" phone?:)
You should be happy you aren't getting ads for, "male enhancement" products.:rolleyes::eek::D

And, thanks for the laugh. I needed one today.:)
Several hours on a ladder will give anybody, "second day sore" in their leg muscles.:(
 
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