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Old 01-13-2019, 06:20 PM   #1
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Preferred make of A/C for a replacement?


Looking for you pros preferred A/C make for a replacement air conditioner & air handler? thanks
PS: pros & cons
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Old 01-13-2019, 06:56 PM   #2
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Re: Preferred make of A/C for a replacement?


There’s no real answer to your question-

https://www.angieslist.com/articles/...vac-brands.htm

Focus on the installer and how well they do their job. This will be what determines how well your unit runs.
Make sure-
They run a load calculation to determine proper size.
They evaluate the duct system.
They install the unit per manufacturer instructions.
They properly commission the equipment once installed.

In the end, a lot of the different brands have the exact same parts inside. Not manufacturer specific parts like a vehicle would.
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Old 01-14-2019, 03:50 AM   #3
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Re: Preferred make of A/C for a replacement?


For the most part, we all have our favorite brand. But one will like York while another likes Carrier, and another Trane, etc.
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Old 01-14-2019, 06:45 AM   #4
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Re: Preferred make of A/C for a replacement?


Quote:
Originally Posted by beenthere View Post
For the most part, we all have our favorite brand. But one will like York while another likes Carrier, and another Trane, etc.
So if the info in roughnecks link is correct, most or all of these different brands use third party equipment to make their A/C systems. If this is correct, there must be another reason that one installer likes one brand over another?
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Old 01-14-2019, 07:37 AM   #5
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Re: Preferred make of A/C for a replacement?


Quote:
third party equipment
Certainly. Why would you set up an operation to manufacture evaporators when the market already exists and you can buy them from another party cheaper. It doesn't degrade the quality. I am certain these third party manufacturers would not stay in business providing many parts for many concerns if they didn't have a good quality control.

I bought my Trane XL 15 (I think) for many reasons. Gossamer type fan which is quite efficient and quiet. You can't hear it at 25 feet. Double coils. But mainly for the way the exhaust is set up. Like the pictures in the Angie's List article, note the hard top with angled exhaust? That keeps snow and ice from forming on your blades and then sending the ice through your coils when it starts up. Silly? Probably, but it made sense to me, as my old unit failed due to ice being slung through the coils.
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Old 01-14-2019, 07:55 AM   #6
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Re: Preferred make of A/C for a replacement?


Quote:
Originally Posted by chandler48 View Post
Certainly. Why would you set up an operation to manufacture evaporators when the market already exists and you can buy them from another party cheaper. It doesn't degrade the quality. I am certain these third party manufacturers would not stay in business providing many parts for many concerns if they didn't have a good quality control.

I bought my Trane XL 15 (I think) for many reasons. Gossamer type fan which is quite efficient and quiet. You can't hear it at 25 feet. Double coils. But mainly for the way the exhaust is set up. Like the pictures in the Angie's List article, note the hard top with angled exhaust? That keeps snow and ice from forming on your blades and then sending the ice through your coils when it starts up. Silly? Probably, but it made sense to me, as my old unit failed due to ice being slung through the coils.
Please don't read into my "third party equipment" comment that it is a criticism.

I'm just trying to find the best option for me & am looking for some common sense reasons for choosing one make over another.

You gave me a common sense reason for going with Trane & if I was in an area that got snow & ice I would definitely keep your reason in mind but in south Florida that is not a concern. Thanks
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Old 01-14-2019, 08:06 AM   #7
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Re: Preferred make of A/C for a replacement?


Most of the reason for choosing one brand over another is a good supply of parts and support in your area.
This is especially important if your going with high end stages/modulating equipment with a lot of proprietary parts.
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Old 01-14-2019, 08:19 AM   #8
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Re: Preferred make of A/C for a replacement?


Quote:
Originally Posted by roughneck View Post
Most of the reason for choosing one brand over another is a good supply of parts and support in your area.
This is especially important if your going with high end stages/modulating equipment with a lot of proprietary parts.
That makes sense but how can I possibly know that info? Thanks

PS: At this point I am leaning towards a 3.5 Ton Lennox but have not made a final decision yet.
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Old 01-14-2019, 08:27 AM   #9
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Re: Preferred make of A/C for a replacement?


Ask your installer how Lennox support is in your area. Are parts stocked in case of breakdowns? Or must they be ordered?
And in a separate topic, how have you determined 3.5 tons is required?
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Old 01-14-2019, 08:38 AM   #10
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Re: Preferred make of A/C for a replacement?


Quote:
Originally Posted by roughneck View Post
Ask your installer how Lennox support is in your area. Are parts stocked in case of breakdowns? Or must they be ordered?
And in a separate topic, how have you determined 3.5 tons is required?
Not that I do not trust any installer but I'm guessing they would all give me the same answer to your suggested question.

I have been told my present system is 3.5 tons & it is the original unit & I went to the link below that has a chart with house size & area in the country to give a rough guess on what size I need & it suggests 3.5 ton also. If you scroll down on that link you will see a chart. I fall into the red zone & 1801 to 2100 sf size house. My house is 1840 sf.

https://michaelbluejay.com/electricity/hvac-sizing.html
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Old 01-14-2019, 08:39 AM   #11
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Re: Preferred make of A/C for a replacement?


If our unit ever needs replaced my tech says it will be a American Standard if I choose his company. I mentioned Lenox and according to him they kind of have their nose in the air which makes it difficult for parts etc. unless -dues- are paid, so to speak.
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Old 01-14-2019, 08:42 AM   #12
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Re: Preferred make of A/C for a replacement?


There is no such chart that exists.
That’s a huge unit for a home of that size. And a bigger unit is not better.
The only way to size equipment is via-
Manual J for heat loss and gain.
Manual S for equipment selection.
Manual D for duct design.

http://efficientcomfort.net/assets/d...ty_Control.pdf

http://efficientcomfort.net/assets/d...ent_Sizing.pdf

http://efficientcomfort.net/assets/d...s_Properly.pdf

http://efficientcomfort.net/assets/d...ign_Issues.pdf

How much did your current unit run on extremely hot days?

That method 2 on that link......that’s about as incorrect as you can get.
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Old 01-14-2019, 09:21 AM   #13
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Re: Preferred make of A/C for a replacement?


Method #2 in the link couldn't have gotten it any any more accurate for our house. We have a 2.5 ton and needed a 3 ton in order to not have uncomfortable days in the cooling mode.
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Old 01-14-2019, 09:21 AM   #14
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Re: Preferred make of A/C for a replacement?


Quote:
Originally Posted by roughneck View Post
There is no such chart that exists.
Thatís a huge unit for a home of that size. And a bigger unit is not better.
The only way to size equipment is via-
Manual J for heat loss and gain.
Manual S for equipment selection.
Manual D for duct design.

http://efficientcomfort.net/assets/d...ty_Control.pdf

http://efficientcomfort.net/assets/d...ent_Sizing.pdf

http://efficientcomfort.net/assets/d...s_Properly.pdf

http://efficientcomfort.net/assets/d...ign_Issues.pdf

How much did your current unit run on extremely hot days?

That method 2 on that link......thatís about as incorrect as you can get.

Can I assume that since we bought the house brand new in 2009, the correct size unit was installed by the builder? Would the builder not have to of followed code? Thanks
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Old 01-14-2019, 09:27 AM   #15
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Re: Preferred make of A/C for a replacement?


Quote:
Originally Posted by dommm View Post
Can I assume that since we bought the house brand new in 2009, the correct size unit was installed by the builder? Would the builder not have to of followed code? Thanks
No, you cannot assume.
How did the unit run when it was extremely hot outdoors? Did it cycle? Or run constantly?
Can you hear and feel the indoor blower operate?
Does your home feel drafty?
Code for sizing is extremely regional, many areas still have no code for such things.
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