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Old 08-09-2019, 07:28 PM   #31
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Current Status


1) I have eliminated Bryant as a choice
2) The second Carrier quote is still pending. It has been a week since they did an on-site survey; Was hoping to have this back by now
3) No response as yet from either from Lennox and American-Standard local dealerships
4) Attached is the updated Carrier quote from my current HVAC provider - These are the folks I have my maintenance contract with
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Old 08-09-2019, 08:23 PM   #32
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Re: Feedback on Carrier AC Proposal please?


bryant and carrier are basically the same.

All the quotes you've posted are very expensive.

It's kind of hard to give advice when you're not really answering questions and we have no idea what controls the system has now, how the house is split into zones, heat loss/gain, the existing furnace* etc.

There's too much missing information here.

Maybe the modulating furnace is a good idea - aka zones are small to better match airflow to number of zones calling. (proprietary carrier zoning system needed to control it properly)

Or maybe it's a waste - not being worth the extra complexity.

*Existing furnace: If it's not affected by the bryant/carrier heat exchanger class action suite - ie mid efficiency it could have 5+ years left. Why change it because the compressor has failed?

You may be able to keep the furnace and control interface. The controller/main infinity stat in itself could be adding hundreds of dollars to the bid.

Possible a more generic 2-stage condenser will work nice with your current setup at a lower cost than the infinity. If you want the lowest repair costs I believe the lennox XC16 doesn't use a circuit board and has a simple, cheap to replace single speed fan motor.

I read through this (http://dms.hvacpartners.com/docs/100.../zone-01dg.pdf) and it looks like the outdoor unit doesn't need to be communicating.

It lists "performance series" ac as option, meaning any condenser which uses straight 24v signals may work if u have enough wires. performance series is non-communicating.
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I am not in the business of any trade I give advice on. I have non-professional hvac experience + good knowledge of theory. Attempt repairs at your own risk. Never jump out safeties - especially pressure switches - on a furnace for testing with fuel supply on; use a meter. Do not troubleshoot with live line voltage present unless there's no alternative.

Last edited by user_12345a; 08-09-2019 at 08:48 PM.
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Old 08-11-2019, 08:18 AM   #33
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Re: Feedback on Carrier AC Proposal please?


Quote:
Originally Posted by user_12345a View Post
bryant and carrier are basically the same.

All the quotes you've posted are very expensive.

It's kind of hard to give advice when you're not really answering questions and we have no idea what controls the system has now, how the house is split into zones, heat loss/gain, the existing furnace* etc.

There's too much missing information here.

Maybe the modulating furnace is a good idea - aka zones are small to better match airflow to number of zones calling. (proprietary carrier zoning system needed to control it properly)

Or maybe it's a waste - not being worth the extra complexity.

*Existing furnace: If it's not affected by the bryant/carrier heat exchanger class action suite - ie mid efficiency it could have 5+ years left. Why change it because the compressor has failed?

You may be able to keep the furnace and control interface. The controller/main infinity stat in itself could be adding hundreds of dollars to the bid.

Possible a more generic 2-stage condenser will work nice with your current setup at a lower cost than the infinity. If you want the lowest repair costs I believe the lennox XC16 doesn't use a circuit board and has a simple, cheap to replace single speed fan motor.

I read through this (http://dms.hvacpartners.com/docs/100.../zone-01dg.pdf) and it looks like the outdoor unit doesn't need to be communicating.

It lists "performance series" ac as option, meaning any condenser which uses straight 24v signals may work if u have enough wires. performance series is non-communicating.
As far as the cost... I took the suggestion that the Dealer is a important part of the decision.

I scanned the .pdf you referenced... Above my ability to understand! Maybe the function of my current controller would address your questions: https://www.utcccs-cdn.com/hvac/docs.../OMUIZ-3CA.pdf
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Old 08-11-2019, 08:19 AM   #34
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Re: Feedback on Carrier AC Proposal please?


Since last I posted... I have spoke to both American-Standard and Lennox dealers... I am not impressed! So I am removing them as options.
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Old 08-11-2019, 08:21 AM   #35
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Re: Feedback on Carrier AC Proposal please?


Second Carrier proposal received. The pricing is more attractive. 2-year labor included, instead of a 1-year with the first Carrier proposal.

Although the dealer/company will be new to me, they have been referred to me by my local HVAC guy; Who does my plumbing and other HVAC stuff on my other properties. So...
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Old 08-11-2019, 08:24 AM   #36
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Re: Feedback on Carrier AC Proposal please?


Here is the current proposal I am considering. As the last proposal may be the final proposal... Please scrutinize it using your expertise. Thanks!
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Old 08-11-2019, 11:01 AM   #37
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Re: Feedback on Carrier AC Proposal please?


It's just like the others - equipment models spec'ed out.

I know almost nothing about the house, climate, zoning setup, etc. What can I say?


This isn't like buying a television.

The link does confirm the zoning system is by bryant/carrier and to switch the brand of the furnace you would have to go with something else. Generic one is inferior to what you have - lennox and i think trane have their equivalent proprietary systems.



It looks like they're trying to exchange like for like. 80 000 btu heat and 3 ton cooling may not even be correct for the house and duct system, diminishing benefit of 2 stage or modulating stuff.
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Last edited by user_12345a; 08-11-2019 at 11:07 AM.
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Old 08-11-2019, 11:26 AM   #38
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Re: Feedback on Carrier AC Proposal please?


Is the existing equipment zoned? How many zones are there?
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Old 08-11-2019, 07:21 PM   #39
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Re: Feedback on Carrier AC Proposal please?


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Is the existing equipment zoned? How many zones are there?
Four-zones
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Old 08-11-2019, 07:35 PM   #40
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Re: Feedback on Carrier AC Proposal please?


Is the existing equipment already zoned? Is the duct able to handle 4 zones?
Is the duct installed correctly with return air in each zone?
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Old 08-16-2019, 08:02 AM   #41
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Two-stage and Modulating


I believe I read about "two-stage" and "modulating". If the AC is two-stage, need thoughts on a two-stage or modulation furnace?
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Old 01-07-2020, 08:47 PM   #42
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Carrier Infinity Selected!


I'm hoping you-all are still following this thread? I have been using my new Infinity system since September... I have some questions:

1) Operation explanation of the differences/perceptions of the two-stage and modulation options?
2) Anyone familiar with the term "blow-out" as it relates to a Carrier multi-zone system?
3) CARRIER EXPERTS: My old Infinity system had a "Zone-off" function; It appears the new Infinity does not have this function. Thoughts?
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Old 01-08-2020, 12:02 AM   #43
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Re: Feedback on Carrier AC Proposal please?


Last year we bought new systems for both our NY and FL homes and we paid a lot less money. NY was AC and furnace, FL was heat pump. NY was $5000, FL was $6200.

Last edited by Old Thomas; 01-08-2020 at 12:08 AM.
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Old 01-08-2020, 05:25 AM   #44
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Re: Feedback on Carrier AC Proposal please?


Quote:
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Last year we bought new systems for both our NY and FL homes and we paid a lot less money. NY was AC and furnace, FL was heat pump. NY was $5000, FL was $6200.
Did you get a deluxe system, or just a plain Jane system?
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Old 02-02-2020, 03:28 PM   #45
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Disappointed in Carrier


Well... I'm back to vent. I'm disappointed in Carrier. Regarding the "Zone-Off" function (above). The Carrier folks report since I am unhappy that the zone-off function is not available in the new system, I should consider their 100% satisfaction guarantee, and have their system replaced with another manufacture's system. Also, they were quick to "throw the <dealer> under the bus"; Carrier is putting the blame on my dealer that they did not inform me that the zone-off function is not available in the new Infinity system. I have yet to read Carrier’s “replace” guarantee… But, I’m sure it’s not written in my favor.
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