Carrier Infinity Systems advice

11 years ago

I am considering 2 slightly differnet Carrier Infinity systems. They are as follows:

Size/Brand: 3 ton/ Carrier Infinity

Model: 25HNB936A003/ FE4ANF003

SEER: 18

Size/Brand: 3 ton/ Carrier Infinity

Model: 25HNB936A003/FE4ANB006

SEER: 19

The Infinity 25HNB936A003 is listed as a 19 SEER, yet the contractor list it as 18 SEER when using the FE4ANF003

air handler, but 19 SEER when using the FE4ANB006 air handler.

The home is 6 yrs old, 1600 sq. ft, located in Edgewater, FL. FPL give at $880 rebate on 18 SEER, while a 19 SEER has a $1005 rebate.

The 19 SEER system is $375 more after the higher rebate.

Is it worth the extra money? Is the SEER values correct? If the FE4ANB006 air handler a benefit or actually too much CFM? Any insight, advise, comments?

Thanks!

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Comments (6)

fsq4cw
11 years ago
Maybe it's just me, but I think your contractor needs to have his head examined to propose theFE4ANB006 with that HP, unless I'm missing something!

SR
Joebie57
Original Author
11 years ago
fsq4cw - Thanks for your quick response. Can you expand upon your answer a bit? Is the SEER value based upon the condenser unit and air handler together? I am not an HVAC guy but everything did not sound right. This is a major purchase and I only have 1 chance to do it right. I need to make a decision quickly as my current 6 year old Amana system had a compressor failure. (I just bought the home in April.)

Joebie57
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Not a pro, but I just replaced two 6 year old Amana units (made by Goodman). We'd already paid for multiple repairs adn were hoping to go a bit longer but our hand was forced when we discovered a Puron compressor was replaced with an R22 compressor and the coil was contaminated. There was also a question about whether the furnace was properly sized -- I got different answers on that and didn't verify for myself before deciding we were not going throw good money after bad. I now have two Infinity systems with the touch thermostats. I don't know how much difference there is in the touch controllers, but they are nice. I really like that I can easily read them in the dark rather than having to close a door and turn a light on when DH is sleeping. I like how smoothly the systems run and how evenly they cool. You will never miss that blast of hot air when an AC kicks on, we can set the system to dry the air or to cool to temp. The controls are easy to use and while we do have the ability to set them remotely with a phone app, we haven't needed to yet. Nice to know we can I suppose, but that wasn't a selling feature. Large and easy to read even in the dark may matter more for us.
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That seems cheap as I have a lesser system and paid more in NC. I have the seer 15/16 and I don't believe they make a 17 although I could be wrong. Of course my system is a little bigger so maybe the price is pretty similar. We have a humidifier only on the first floor. The thought is that humidity tends to be the same throughout a house. Well - I am working on this because it is a little dry upstairs. But that is very common practice and I am just picky. The slave zoning stats read the humidity. The master zoning stat does not display the humidity but I suspect it reads it. Is a ventilator an air handler? What are your electric rates, because we share nearly the same climate and a heat pump is a good idea with a quick payback (which of course depends on the price of NG). No question, good insurance for a spike in NG prices. Anyway, if your electric rates are in the $.10 range, then you should upgrade to heat pumps. If you share DC's rates, then maybe stick with what you have. Although no one knows what the future holds. I'm assuming this includes duct work? I paid $20k for new construction, 4 ton for first floor and 3 ton upstairs. Heat pumps. NG backup on first floor. Zoning upstairs.
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mike_home
11 years ago
Here is what I found on the AHRI Directory site. Both coils appear to be valid matches for the heat pump. The FEANB006 coil has better SEER (19) and HSPF (10.0) over the FEANB003 coil. This means you will be savings some energy costs in summer and winter.

arirefnumber ModelNumber CoilModelNumber Capacity95FHigh EER95F SEER HighHeat47F HSPF LowHeat17F
4642895 25HNB936A**30 FE4AN(B,F)003+UI 34600 13.00 18.00 36400 9.50 21600
4642353 25HNB936A**30 FE4ANB006+UI 36600 13.70 19.00 37400 10.00 22000
5538986 25HNB936A**31 FE4AN(B,F)003+UI 35600 13.20 18.00 36400 9.20 22400
5538697 25HNB936A**31 FE4ANB006+UI 36600 13.70 19.00 37400 10.00 22800
fsq4cw
11 years ago
That's the 'theoretical' spec for this match. Personally I would not do a retrofit this way in my own home. I would prefer the F'003 'Sloped' coil with the cfm range between 200-1400cfm than the F006 'A' coil with the cfm range between 500-2000cfm. I feel this would provide better utility with a 3-ton HP and I prefer the way condensate drops out of the 'Sloped' coil to the 'A' coil.

Sometimes you have to read beyond the specs. This is my interpretation, analysis and conclusion, however it's not the only one possible. I would only install the F006, maybe, if I were going to later put an addition on the house.

Why not just install a Carrier Greenspeed system?

SR
Joebie57
Original Author
11 years ago
I'm looking for the best option that is the most cost effective. I think the Carrier Greenspeed system is a sizable cost increase. Can you comment on the cost increase? Not sure if I would ever utilize the low temp heating benefit of the Greenspeed since I'm in Edgewater, FL (Near Daytona). Are there other benefits that I'm not aware of?

I'm leaning towards the 003 system and it seems to be your choice, which helps.

Thanks!
fsq4cw
11 years ago
Since you live in FL you may be quite right regarding the price increase of the Greenspeed since heating is not a priority.

Greenspeed advantages may include quieter operation, less wear due to ability to operate at slower speeds, possibly even better humidity control and less costly to run. Whether this trumps the cost increase is certainly questionable. You could press for a fair price to consider the Greenspeed upgrade and the new Infinity WiFi thermostat as well if it's available.

Don't forget the Carrier Fall rebates! That alone may provide a $230 advantage for the Greenspeed than for the 25HNB combo rebate.

Don't forget to discuss the 10-year parts and labor warranties!

SR

Carrier Infinity Systems advice

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Carrier Infinity Systems advice

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