DAVES |
06-17-2022 01:53 PM |
Quote:
Originally Posted by Dr.Butler
(Post 2106815)
Hi all. So central AC is essentially a foreign concept to me. My unit is 15 years old but seems to be working fine, and I am of the mindset that if it is not broken..... BUT I notice that for example yesterday, I set the unit to 74 degrees. During the heat, it went up to 77 degrees. The house felt fine, but it seemed like the unit was not keeping up? By the evening it went back to 74. I recently had the unit inspected and topped off with the coolant. So I guess the question, is this essentially normal/expected behavior?
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OPINION MINE-The unit is sized to at max be able to reduce temperature by so many degrees. If, it is say 100 outside and you set your thermostat to 77 it likely cannot do that. Interesting, ac units are rated in tons. One ton AC has the cooling capacity of one ton of ice.
A too large AC will run less and thus leave the air cool but will not remove the humidity,
you end up with damp cool like a cave.
We use our AC a lot. If a heat pump as many of us have, including me, it runs all year
running one way to cool and n reverse to heat. Most everything has an expected life.
You buy a bulb and it says average life. No one tracks it, I may be wrong in that, but you, I expect around that. An ac in the villages lasts about 14 years some more some less. I buy spare bulbs, not expensive. Your AC time to be prepared. Replace it while it is still working. A decision to be made. The seer # is the efficiency number. Did it ever produce that laboratory number-few check or even know how to check. It is very doubtful your old unit is as efficient as it was and newer units are likely more efficient
so will save you on your electric bill.
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