Neighbor's condenser under our bedroom windows
I realize that nobody wants to get involved in this, but our next-door neighbor has moved his condenser between our houses (which are on 50' lots) and directly under our bedroom windows. So, his unit is about 5' from our house! He runs his AC 24/7 and we Might put ours on maybe 6 times during the summer! He insists that we won't be bothered by the noise, but already I'm bothered by his lack of concern for our relationship. Is there some kind of rule (or guideline?) for the best placement of an a/c condenser unit? Any guidance on where to look will be much appreciated!