Quote:
Originally Posted by T-Bolt
What problems? My A/C doesn't work so I was going to move it above the windshield then have it charged. As it is only needed while driving it makes sense to have it up front with the driver and family not 20' back.
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Not with a window-shaker mounted over the windshield. First, there is the issue of creating a quality seal to prevent air and rain from getting around it and inside while driving. Window shakers are also designed to exhaust the condenser coil heat outward through the condenser coil, and mounting them in a roof cap facing inward to blow cool air inside will trap this heat in the condenser coil. Reason being the fan cannot overcome the force of the air rushing against it. This will cause system overheating, which leads to getting overpressurized and ultimately can cause massive failure.
To simplify this for easier understanding, refrigeration systems (air-conditioning is a form of refrigeration) simply remove heat from intake air crossing the evaporator coil and exhaust that heat from the condenser coil. Systems are designed to be operated under certain conditions and in a certain orientation for a reason. More often than not, relocation and orientation changes can cause major problems because heat is not being exhausted properly, if at all.
I'm not saying it can't be done with a window shaker at all. I have seen expedited trucks that mounted a window shaker out the back of the sleeper and ran a quiet generator on the catwalk behind the cab, thus maintaining condenser heat exhaust airflow. But if mounted over the windshield blowing in, you will likely have to modify the unit to compensate for this, removing the factory condenser fan and replacing it with one that blows the opposite direction. Even then, you still have the issue of maintaining a good seal around it to keep the elements out. I explain this in another thread where someone did exactly what I am describing without modifying for the orientation, and had problems, outlined here...
https://www.skoolie.net/forums/f51/d...ion-29149.html