Having problems with your Air Conditioners ?

I have a Carrier whole house Air Conditioner I want to replace. It is model 38EN048320. @ things: 1. What "ton" is that AC rated at? It's so old I can't find what size it is so hard to pick a replacement. 2. With todays models they are all high efficency, should I get the same size replacement or can you step down a notch based on the efficency in models made today? I know a contractor would figure this all out but I'm doing this job myself as I have done this before.


Answers :

1. 3 Ton Up To 4 Ton 
2. You should get the same size - high efficiency means that for the same heat extracted from the residence the unit consumes less electricity than an older one. How much less is explained in the ratings: if your present unit could be rated at G the new ones are rated at between C (for simpler and cheaper ones) to A (the best and most expensive ones).
If you live in the south then the high price of an A rated unit is worth paying - you will recoup the difference to a C unit in less than 5 years(or even faster if you shop around) from the savings on the electricity bill.

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