For a window-type air conditioner located beside a glass window, where is the best location for the ACCU?

The best location for the air conditioning compressor unit (ACCU) is at the ledge because this placement ensures optimal airflow and functionality. By positioning the ACCU on the ledge outside the window, it can effectively expel heat generated by the air conditioning process. This location minimizes any potential obstruction to airflow that could occur if positioned too close to walls or other structures. Additionally, being at the ledge allows for easier access for maintenance and service without disrupting indoor activities.

Placing the ACCU inside the office would hinder its performance, as it would be trapped within the warm environment instead of allowing heat to escape outside. Choosing anywhere outside the office without considering specific conditions could lead to issues such as blockage from foliage, walls, or other obstructions that would affect efficiency. Selecting "none" would imply that there isn’t a viable location, which is not the case here since the ledge is well-suited for this purpose.