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Author Topic: HVAC questions  (Read 1926 times)
Gavin_Sons
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Posts: 7109


VRCC# 32796

columbus indiana


« Reply #40 on: June 10, 2020, 12:10:26 PM »

Good job Jess. You spoke of AC units not working and mine crapped out last night. A quick check over and the trusty multimeter i found a bad capacitor that runs the compressor. Compressor was not turning on. A quick trip to town and $16.20 later had a new one. Got home installed it (about 2 minutes) and it is running great again. House is now 69 degrees. Beats the 78 it was at last night. Thanks for sending your AC problems my way  cooldude
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Wizzard
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Posts: 4043


Bald River Falls

Valparaiso IN


« Reply #41 on: June 10, 2020, 01:09:54 PM »

Good job Jess. You spoke of AC units not working and mine crapped out last night. A quick check over and the trusty multimeter i found a bad capacitor that runs the compressor. Compressor was not turning on. A quick trip to town and $16.20 later had a new one. Got home installed it (about 2 minutes) and it is running great again. House is now 69 degrees. Beats the 78 it was at last night. Thanks for sending your AC problems my way  cooldude

Those dang flux capacitors anyhow.  Grin
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VRCC # 24157
Jess from VA
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Posts: 30445


No VA


« Reply #42 on: June 10, 2020, 01:32:03 PM »

Thanks for sending your AC problems my way  

Hey, anything I can do for a brother I will do.   cooldude Grin

My AC died an honorable death (after 33 years' faithful service).  

My furnace might have gone a while longer, but the company gave a very decent discount to get it all done together.  And since my AC went out in 95*, it just stands to reason the furnace would go out at 15*.  And having construction going on at/in your house is always better one and done.

The guys that did the work were master craftsman, changed out all my old switches, fuse boxes to new, routed all wires, lines and vents/ducts far more tidy and tight than they were before.  Top notch brazing work.  And instead of having to take my furnace cover off, and remove the old and shove the new filter back inside the unit (with a crappy spring clip that never stayed put), I now have a simple filter slot right off the main cold air return.  The AC unit is amazingly quieter than the old one too.  And now I should be set (HVAC-wise) for the rest of my time on the planet.

I will be looking closely at my future electric bills to see if there is really any cost savings.  But reliability was the issue, not cost.

16 SEER



The last discussion I had with them was what all I needed to do for ongoing maintenance.  They said don't touch nothing, call us.  Really, for free?  They thought that was funny.

BTW, something I discovered during my week without any AC function at all:  At least in my 3-level split, just running my furnace fan continuous (with no heat) served to suck up the coolest basement floor air (though the main return) and spread it around the house.  This was far from AC quality cooling, but it stopped my upstairs living areas from gradually becoming 90*+ constant, like it had in the past (during long power outages).  And during that week, the high nighttime temps and humidity meant no blowing out the house heat with the upstairs windows open at night either.  

« Last Edit: June 10, 2020, 02:34:48 PM by Jess from VA » Logged
f6john
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Posts: 9372


Christ first and always

Richmond, Kentucky


« Reply #43 on: June 10, 2020, 03:31:42 PM »

My hvac story. Yesterday I noticed my unit was running but the thermostat temperature was steadily rising. My unit had been working flawlessly since we have been here A year ago but it is 20 years old. I went outside and everything is frozen over which in my past experience means low Freon. So I shut the unit off since it was done for the day. I couldn’t remember the last time I changed the filter So I pulled out the old one which was dirty (I’d seen worse) but what caught my attention was the fact that the filter had bowed up in the direction of the airflow. I put in a new filter and called the hvac repair company and they were able to come today.

My service guy tried to prepare me for the worst. Since my unit runs on R22 and R22 is not being manufactured anymore the cost from his company has risen to $95.00 a lb. he said some of his competitors were at $200.00 a lb. So after that he had me turn my unit back on. Long story short, the filter was the culprit restricting air flow past the a coil allowing it to freeze up.

He verified for me that I had a recently replaced fan on the outside unit and a recently replaced a coil on the inside unit. So I went from thinking I might have a bill in the hundred of dollars to a $75.00 service call.

Dodged a bullit, but still sitting on a time bomb. If I don’t spring any leaks I could get another 5 years or so of service out of this unit which would be great. New kitchen cabinets, countertops, appliances, and backsplash are draining me now but that will be the end of the big expenditures of my ongoing remodel.
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Jess from VA
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No VA


« Reply #44 on: June 10, 2020, 04:01:41 PM »

If it's not one thing.... it's another.



https://www.youtube.com/watch?v=9hYGtXIqDa0
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cookiedough
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Posts: 11689

southern WI


« Reply #45 on: June 12, 2020, 05:40:22 AM »

Good job Jess. You spoke of AC units not working and mine crapped out last night. A quick check over and the trusty multimeter i found a bad capacitor that runs the compressor. Compressor was not turning on. A quick trip to town and $16.20 later had a new one. Got home installed it (about 2 minutes) and it is running great again. House is now 69 degrees. Beats the 78 it was at last night. Thanks for sending your AC problems my way  cooldude

AC at 69 degrees in a house?   that is freezing COLD isn't it?  I have my AC set at 77 degrees and wife complains she is cold but is fine with me.  If I ever bump thermostat with AC on down to 76 degrees on the most horrible hot days is plenty cold enough for anyone to be comfy.

probably have jinxed myself now since my comfortmaker 2 ton unit for my small 1104 sq. ft house was new in 1993 still working...  Just replaced my new 1993 comfortmaker 80% efficiency gas furnance about 4 years or so ago bit the bullet cost me around 2 grand.  All they had to do really was remove the old unit which was starting to nickle and dime me and run new heat duct `15 feet and cut a hole in the wall to accept larger ductwork to outside and pretty much done in 2 hours tops with over 1 hour of that running duct work/cutting whole in outside wall.

 
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Gavin_Sons
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Posts: 7109


VRCC# 32796

columbus indiana


« Reply #46 on: June 12, 2020, 01:53:24 PM »

Good job Jess. You spoke of AC units not working and mine crapped out last night. A quick check over and the trusty multimeter i found a bad capacitor that runs the compressor. Compressor was not turning on. A quick trip to town and $16.20 later had a new one. Got home installed it (about 2 minutes) and it is running great again. House is now 69 degrees. Beats the 78 it was at last night. Thanks for sending your AC problems my way  cooldude

AC at 69 degrees in a house?   that is freezing COLD isn't it?  I have my AC set at 77 degrees and wife complains she is cold but is fine with me.  If I ever bump thermostat with AC on down to 76 degrees on the most horrible hot days is plenty cold enough for anyone to be comfy.

probably have jinxed myself now since my comfortmaker 2 ton unit for my small 1104 sq. ft house was new in 1993 still working...  Just replaced my new 1993 comfortmaker 80% efficiency gas furnance about 4 years or so ago bit the bullet cost me around 2 grand.  All they had to do really was remove the old unit which was starting to nickle and dime me and run new heat duct `15 feet and cut a hole in the wall to accept larger ductwork to outside and pretty much done in 2 hours tops with over 1 hour of that running duct work/cutting whole in outside wall.

 

Not freezing at all. If i have AC I'm going to use it. My house stays at 68-72 year round.
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scooperhsd
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Posts: 5720

Kansas City KS


« Reply #47 on: June 12, 2020, 02:38:51 PM »

You like making the Electric Utility RICH Smiley
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Jess from VA
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Posts: 30445


No VA


« Reply #48 on: July 27, 2020, 09:12:37 PM »

Well, I thought I would do a brief after-action report on this thread.

Last month's electric bill seemed a bit lower than normal for this time of year, but the new AC unit was only in for some of the month, and the temps weren't terribly hot.

My July electric bill, for what is likely the hottest month ever since I've lived here ('92), is $65.  I would have expected a bill of at least $110.  It's been 93 to 98 nearly every day this month, and the AC is running all the time.  That is a very nice cost savings (though it's not going to pay the dang thing off any time soon).  

I diddled with my thermostat with the new AC for a few days, but found a good constant setting that is comfortable and leave it there.

However, when we get the occasional nasty thunder and lightening storms with wind coming through, I crank the thing down cold and leave it until it blows through.  If we do lose power, I have a cool house for several hours longer than I would otherwise.  
« Last Edit: July 27, 2020, 09:14:24 PM by Jess from VA » Logged
cookiedough
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Posts: 11689

southern WI


« Reply #49 on: July 28, 2020, 04:00:47 PM »

didnt you get a new thermostat where you can program at least MOnday thru Friday and Saturday and Sunday separately in 4 different periods during the day? Mine is from HOneywell a Chronotherm III from 1993 and I bet when we were working in the office not running anything much in terms of heat and AC we saved a ton not running anything while not home 10 hours per day.

I just noticed my AC unit yesterday not super hot out 88 or so was running for a very long time so who nows is from 1993 a Comfortmaker 2 ton unit.  blows out cold still just seems to run longer who knows?  House set at 77 degrees is plenty cold in here when it shuts off would hate to have the house temp on AC under 76 degrees would be wearing my winter coat, no joke.   

My heat is set at 68 degrees normally if home during cold winters,  most like 70 and above but not me. 
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Rams
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Posts: 16262


So many colors to choose from yet so few stand out

Covington, TN


« Reply #50 on: July 28, 2020, 05:00:30 PM »

During our renovation and addition, we replaced the two 2 ton units, they were old and not very efficient.   One of them had been repaired numerous times just in the three months prior to starting our project.    Since we added on, we needed a bigger unit for the upstairs but due to the pricing of the units, we went with a 3 ton down stairs and a 4 ton upstairs.    We also foam insulated the entire roof and all the new walls.

If we want to, we could hang beef and keep it cold in here.   We're still not through with the construction issues for the electric bill but the construction is now finished so next month should give us a good idea as to what it will cost to keep it comfortable.    For some reason, construction/sheet rockers, painters, plumbers and electricians don't know how to close doors or windows.   tickedoff

Rams  crazy2
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VRCC# 29981
Learning the majority of life's lessons the hard way.

Every trip is an adventure, enjoy it while it lasts.
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