Goodman GMVM with a 18 seer HP with matched cased coil. The outlet of the furnace and therefore inlet and outlet of the cased coil are square with .25". Does it matter regarding airflow or anything else if the coil is placed on top of the furnace 90 degrees or 180 degrees rotated? The installer wants to do this for ease of the AC line. Access to the doors of both the furnace and the coil will be fine. Thanks, Mike.