In this project an air conditioner was fabricated using R-410a as refrigerant and its COP is calculated. CFCs have been phased out, except for essential users, HCFCs are to be eliminated by 2020, because of their ozone depletion potential.This generates a need the investigation zero potential (ODP) refrigerants or blends.R410A among newer brand blend, with ODP. The biggest difference R22 pressu...