A C package unit is a self-contained air conditioning system that is designed to cool a single room or a small area. It is typically installed on the roof or outside wall of a building and is composed of two parts: an outdoor condenser and an indoor evaporator. The condenser is responsible for cooling the air and transferring the heat to the outside environment, while the evaporator is responsible for distributing the cooled air into the room. The package unit is a great option for those who want to cool a single room or a small area without having to install a full-sized air conditioning system. It is also a cost-effective option for those who don’t want to spend a lot of money on a full-sized system. The package unit is easy to install and maintain, and it can be used to cool a single room or a small area quickly and efficiently.