what type of combo heat/ac unit to buy - unit on it's last leg...

Old 02-03-12, 06:36 AM
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Location: North Carolina
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what type of combo heat/ac unit to buy - unit on it's last leg...

So, our combo unit seems to be limping along. As you'll see below, there's been quite a bit of maintenance done the past two years. The heat went out again today, so I'm preparing for the worst this time (it was serviced just two weeks ago, when they replaced the gas valve).

I'm looking for advice on what type of unit / manufacturer is "best". As noted below, our unit is a combination gas pack/AC unit.

What exactly should I look for in a new unit?

We had a quote done a few months ago (as we knew the unit was on it's last leg) from one company. They recommended installing an American Standard unit (model# 4YCY4042B1096A). The total cost (install, labor, materials, and removal of the old unit) was $7500.

Another suggested installing a Rheem 3 1/2 ton 14 seer unit. Their quote was $7300 (that included enlarging the ducting from a distribution box to our master BR, which is always cooler/hotter than the rest of the house).

Are these (Rheem/American Standard) reputable manufacturers, and does the price being quoted seem reasonable?

Here's other info requested by one of the forum's stickys:

We live in North Carolina in a 2100 sq. ft. house (it's a ranch, but it does have a bonus room over the garage.

We have pretty mild winders (typically lows in the upper 20's and highs in the 50's).

The existing unit is a Carrier combination gas heating/electric cooling). The model# is 48GS-042090301. It's 10 years old.

We use a digital thermostat from Honeywell.

Maintenance performed since we've owned the house (we bought it in July 2009):

Oct. 16, 2009 - replaced run capacitor

Dec. 11, 2010 - Inducer was not running at full strength. Tech found swollen capacitor that he replaced.

Jan. 10, 2011 - found bad inducer assembly. Replaced motor, wheel, Hall effect sensor housing, 4uF capacitor.

Aug. 1, 2011 - gas pack froze up. Added two pounds of freon.

Jan. 26, 2012 - replaced gas valve

Feb. 3 2012 - to be determined later today....

Thanks in advance,

Old 02-03-12, 12:59 PM
hvactechfw's Avatar
Join Date: Jan 2011
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this forum is not about price...............That varies by location and contractor. Get mutliple quotes.

It is the opinion of most pro's on this forum that manufacturer matters much less than proper installation.

Carrier is a reputable manufacturer as well. Things happen along the road of life of the equipment and you will have intermittent breakdowns along the way no matter who the manufacturer is. Those breakdowns can often be avoided with a good maintenance plan where a tech can check the system and find small problems before they become breakdowns.

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