I bought a carieer(1.5T) A/c in 2007. I am NOT at all happy with the product.Right from the day 1 it never worked properly. There is near zero cooling effect any/every time I call the service guys they fill the gas(filled it twice) do the water servicing but nothing seems to be effective.
I would NOT recommend CArieer A/C. The only thing the Carieer guys are good is having a great false reputation for themselves. Their products until 2005 were very standard. My uncle has an A/C bought in 2004 and it works like magic.
He too bought another Carieer in 2006 and got screwed-up big time. I have a Voltas windows a/c and man it works just amazing. I would recommend Voltas, it might consume little more comfort but you have peace of mind and totality of happiness. Go Back Carieer(piece of sh**). Please think twice thrice before you buy Carieer Air conditioners