Convert your old central air conditioner to a new one, only the outdoor unit. Save more than 50% on electricity bills. 1.5 ton for 1500 2 ton for 2000 2.5 ton for 2500 3 ton for 3000 We also offer converting a split air conditioner to a central concealed air conditioner without ducts, without breaking gypsum or walls, using the same split pipes.