Can a portable air conditioner be used in a wall enclosed encasement?

Using a portable air conditioner in a wall-enclosed encasement is not recommended, as it requires proper airflow and ventilation to function effectively. Enclosing it may restrict air intake and exhaust, leading to overheating and reduced efficiency. Additionally, the condensation from the unit needs to be properly drained, which may be challenging in a confined space. It's best to place the unit in an open area where it can operate safely and efficiently.