Arrived to replace leaking evaporator coil. Began by picking up coil from Apex and drove on site. Once on site I began by recovering just under 6lbs of r410a. After refrigerant was recovered I cut out the old coil and the old drier. The old coil was an N coil and the replacement was an A coil. The new coil was taller so I had to make some adjustments to the supply plenum but was able to make it fit. Once we brazed in the new coil and drier while flowing nitrogen I pressure tested the system with 400lbs of nitrogen and let it hold for 10-15 minutes while we checked for leaks. After confirming that the system had no leaks, I hooked up the vacuum and pulled a vacuum down to 320 microns. With the pump and hoses disconnected the system stayed pulled down to 400 microns for 10 minutes before we weighed in factory charge. The system calls code 9lbs and 12oz. We added a few ounces to account for the lineset length. We hooked back up the drains, flue pipe when all other secondary and tertiary