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lrbarone · Jan 16, 2009, 09:55 AM

Hello,

I have a two year old Trane packaged system (XB13, model 2YCC3024, 2.0 tons) that is blowing the heat at 77 degrees. Needless to say, in this cold, that means the house is around 60 degrees. The unit runs constantly, and we do not have an emergency heat setting. It is one of two units in my home, and is the downstairs unit. Each floor is roughly 1200 square feet. The upstairs unit is in the attic, is 11 years old, blows at 114 degrees, and works perfectly keeping the upstairs at 68 degrees. Repairman was out and could not find anything./Any ideas what might be causing this?

Any help or ideas are appreciated. Thanks!

hvac1000 · Jan 16, 2009, 12:00 PM

You need to find a repair person who knows what they are doing.
It could be many things

Is the heat pump running outside?
Did the repairman check the operating pressures? And if so what were they?
If you do not have a emergency heat setting do you know if you have a electric furnace or air handler? If so then when you turn the heat up the electric heat will come on.

The temperature should be blowing a bit more than 77 degrees but it is all a guessing game as to what could be wrong with out some facts

wmproop · Jan 16, 2009, 07:07 PM

I looked up your numbers,, and found that you have a gas package unit with 2 ton air, I`m thinking the 2 ton air might be a little small for a 12,000 sq. foot area but it doesn`t say what the btu`s of the furnace is, the furnace could also be a little to small,, but all this is really according to where you live and the insulation condition of your home,, did it heat satisfactory last winter?,

hvac1000 · Jan 16, 2009, 07:12 PM

2 ton for 1200 sq ft is 600 sq ft per ton. Marginal at best for A/C but what are the BTU's of the furnace. I was thinking this was electric to start with a heat pump when I saw the 77 degree statement.

lrbarone · Jan 16, 2009, 09:41 PM

Yes it has heated fine for two seasons. The unit in the downstairs is two tons. The upstairs is too. I would think that 4 tons would be enough for 2500 square feet.

lrbarone · Jan 16, 2009, 09:43 PM

But maybe not...

lrbarone · Jan 16, 2009, 10:03 PM

Heating output BTU reads 32,000

lrbarone · Jan 16, 2009, 10:04 PM

It also says it is a forced air furnace.

hvac1000 · Jan 17, 2009, 02:37 AM

We have no idea where you live so who knows how much heat you need or exactly what you seasonal temps are.

32,000 BTU per unit is 64,000 BTU total is not a lot of heat for 2500 square foot in my area.

I believe you are a bit short on unit size but you need to have a manual J performed to find out for sure.

lrbarone · Jan 17, 2009, 03:26 PM

Originally Posted by hvac1000

We have no idea where you live so who knows how much heat you need or exactly what you seasonal temps are.

32,000 BTU per unit is 64,000 BTU total is not a lot of heat for 2500 square foot in my area.

I believe you are a bit short on unit size but you need to have a manual J performed to find out for sure.

WOW--Did you call that one!! Thank you SO MUCH! I found a technician who said the unit was simply too small, and that the installer had the gas pressure setting incorrect. He said the gas pressure setting was at 5 1/2 inches, vs. 3 1/2 where it should be. He made the correction, and two hours later, the house its at 68 degrees. :)

We are in TN, and normally don't see zero degrees here. The tech said honestly, he would buy a couple of space heaters and pull them out for the once or twice a year it gets cold. Other than that we would be fine once he made the adjustment.

Thank you for your help! You guys were awesome!

hvac1000 · Jan 17, 2009, 10:19 PM

Now you know what the problem is and it is good that the service man came and checked the gas pressure going into the unit and made the proper adjustments. Electric space heaters are good to help out when it gets real cold. If you have a Meijer Store near you they are having 50% off Sunday and Monday on all there electric space heaters and if you have there credit card or sign up for one you get a extra 15% off on top of that. I am retired from the HVAC game and I do not work for Meijer but I saw there ad and those are pretty cheap prices for electric heaters.

If you have problems with your HVAC just stop by and ask questions. Someone is always around.

MarkwithaK · Jan 17, 2009, 10:24 PM

Now that the problem has been solved, what the hell kind of a term is 'lukewarm' anyway? I know what it implies but damn.

hvac1000 · Jan 17, 2009, 10:35 PM

It is kind of like tepid. Isn't you got no education? LOL

wmproop · Jan 17, 2009, 10:38 PM

Lukewarm

Adjective
1. moderately warm; "he hates lukewarm coffee"; "tepid bath water"
2. feeling or showing little interest or enthusiasm; "a halfhearted effort"; "gave only lukewarm support to the candidate" [syn: halfhearted]

Did this help?, lol,:):):)

MarkwithaK · Jan 17, 2009, 11:04 PM

No. It most certainly did not! I know what it means, what I want to know is who in the hell is Luke and what does his warmth level matter? ;)

hvac1000 · Jan 17, 2009, 11:06 PM

You do not remember Star Wars. That is the Luke part. Now there is also a Luke in the bible so try not to get them confused.

MarkwithaK · Jan 17, 2009, 11:11 PM

Well what if he had the flue and was running a fever? Wouldn't that askew the very definition of the term?

wmproop · Jan 17, 2009, 11:20 PM

Originally Posted by MarkwithaK

No. It most certainly did not! I know what it means, what I want to know is who in the hell is Luke and what does his warmth level matter? ;)

Luke was one of Christs deciples. He wrote the 3rd book in the NT. I believe before meeting Jesus he was a docter. I also don`t believe he is in hell, he is in heaven, so he would be neither cold or hot, he would be (warm) and comfortable

So just maybe where the term ,(lukewarm) comes from

MarkwithaK · Jan 17, 2009, 11:22 PM

Eh, I prefer the Skywalker analogy. :p

Oh, good name for a band!

hvac1000 · Jan 17, 2009, 11:23 PM

he would be (warm) and comfortable

Hense (Luke warm). Now we figured it out.