What is the purpose of a condenser in an HVAC system?

The purpose of a condenser in an HVAC system is to eliminate heat from the refrigerant and convert it from a gas to a liquid. This process is crucial in the refrigeration cycle. When the refrigerant absorbs heat from the indoor environment, it evaporates and turns into a gas. The condenser, located typically outside the building, receives this gas and then allows it to release its heat to the outside air. As the refrigerant cools, it condenses back into a liquid state, making it ready to return to the evaporator coil and repeat the cycle.

The function of the condenser is key to maintaining the overall efficiency of the HVAC system. By removing the heat from the refrigerant, the system is able to produce the desired cooling effect inside the building. Without the effective operation of the condenser, the refrigerant would not undergo the necessary phase change, leading to a failure in the system’s ability to cool adequately.

The other possible answers do not accurately describe the primary role of the condenser in this context. The condenser's essential function in heat exchange and phase transition is what makes option B the correct choice.