Question about Carrier 38CKC042 Air Conditioner

# What is the tonage of this unit? - Carrier 38CKC042 Air Conditioner

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12,000 BTU equals 1 ton of cooling
24,000 BTU equals 2 ton of cooling
30,000 BTU equals 2 1/2 tons and so on

024
030
042
048-4tons
060-5ton

Posted on Jun 15, 2010

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That is a 3 1/2 ton unit.

Posted on Jun 02, 2010

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Posted on Jan 02, 2017

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### Central air unit

Make sure you let the blower run for a while after it freezes to make sure there is no more ice. Then run the unit. Check the refrigerant lines the large copper line that has insulation on it should be cold to the touch. If it runs for 10 minuits and is barely cold or warm you are low on refrigerant. If its starts out nice and clod then check your filter and retun ductwork for blockage you should not have noisy return air vents or that can indicate you have too small a return.

Also are the outdoor unit and indoor coil a match? Same tonage?
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it cold be different problems.
1-check for any air leaks around the house.
2-check the return box and see if have any opening and seal the holes.
3-check the insulation on the attic or any motor that takes the heat out the attic.
4-check if the unit is under tonage each tonage mean a 400 sf per ton.
5-check if the air handler coil is not dirty and enought air going thru the coil.
6-check the pressure of the condenser unit if have the rigth presures.
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