Gas and Oil Home Heating Furnaces - Expectations
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paud
07-03-03, 04:24 PM
This is not really a do it yourself question, but I want to ask it anyway.
I recently had my entire 30 year old heating and cooling system replaced with a new 2.5 ton Carrier Puron air conditioner (38TXA), with a variable speed furnace (58CVA). I live in Northeastern Oklahoma. My house has about 1300 sq feet of living space. It does have very poor insulation.
Now when in the afternoon with the temperature at between about 95 and 100 degrees, I cannot keep the house any cooler than 76 degrees.
Does this sound correct? I had to spend quite a bit on this new system and was hoping for it would be able to keep the house cooler than this. WHere my expectations too high?
I recently had my entire 30 year old heating and cooling system replaced with a new 2.5 ton Carrier Puron air conditioner (38TXA), with a variable speed furnace (58CVA). I live in Northeastern Oklahoma. My house has about 1300 sq feet of living space. It does have very poor insulation.
Now when in the afternoon with the temperature at between about 95 and 100 degrees, I cannot keep the house any cooler than 76 degrees.
Does this sound correct? I had to spend quite a bit on this new system and was hoping for it would be able to keep the house cooler than this. WHere my expectations too high?
hvac4u
07-03-03, 07:15 PM
was a heat calculation done on your home? if the unit is operating properly, it could be undersized. puron with variable speed is, in my opinion the cadillac. i have a puron 4 ton VS AHU with the 2 speed 17 SEER outdoor unit, and we can hang meat!! :D what is the temp difference between supply and return?
paud
07-03-03, 08:46 PM
I don't think a heat calculation was done. The 30 year old unit it was replacing was 2.5 tons and all i gave them was the my square footage of about 1300.
I'm not sure how best to check the temp drop, but the difference between the temp at return air and a couple of the supplies is about 15 degrees.
It doesn't really feel like it is blowing very hard out of most of the supply vents.
I'm not sure how best to check the temp drop, but the difference between the temp at return air and a couple of the supplies is about 15 degrees.
It doesn't really feel like it is blowing very hard out of most of the supply vents.
410a
07-03-03, 10:18 PM
Paud
In most areas we select equipment to hold a home at 75 degrees on a "design" day. Design conditions for Tulsa are 98 degrees with a 22 degree daily swing.
If your system holds 76 at 100, your system is within normal design parameters. If you wanted something more than that, you should have said so to the contractor. If your contractor did not run a load calculation, then he was guessing that the equipment he selected would do the job. He has nothing to prove that the equuipment is correct.
Several air conditioning businesses in this area offer a 100% Satisfaction Guarantee. Tell your contractor that you are not happy and you want him to do something about it.
I hope he guessed right on the size of your heater:eek:
In most areas we select equipment to hold a home at 75 degrees on a "design" day. Design conditions for Tulsa are 98 degrees with a 22 degree daily swing.
If your system holds 76 at 100, your system is within normal design parameters. If you wanted something more than that, you should have said so to the contractor. If your contractor did not run a load calculation, then he was guessing that the equipment he selected would do the job. He has nothing to prove that the equuipment is correct.
Several air conditioning businesses in this area offer a 100% Satisfaction Guarantee. Tell your contractor that you are not happy and you want him to do something about it.
I hope he guessed right on the size of your heater:eek: