There are some additional requirements that most of the people do not pay attention to when installing a new air conditioner, whilst, in fact, such those things can also be the causes of problems with the air conditioner if no if not installed properly. That is why it is better to call a professional like the www.airconservicing.org/ to do the installment. They know all the things to do to properly install the air conditioner.
One of the things is to make a hole in the wall to match the pipe. You need to discover the best point for the hole to the exterior by an opening in the mounting box. You should also consider the length of the pipe and the distance required to reach the unit outside. Then, you can drill a hole diameter of 3 “(7.5 cm) into the wall. The hole should have sloping down towards the exterior to ensure sufficient drainage soa that you can enter the outskirts of the pipe into the hole.