Feb 2-3, 2013 (8 hours) I worked with installing the Flightline AC system firewall pass thru. I finally decided on the best location for the pass thru that was different from most all other RV10 installations based upon my location of the firewall battery, master contact relay, and future battery pass thru. I drilled the thru holes and then applied Bio-therm and attached the pass thru to firewall. I then installed the battery pas thru located very near the same locations since I had all the required tools in hand. I then installed the two different size hose on the aft size of the firewall. I once again used a different configuration than most other installations because of the pass thru locations. I used two 45* hose attachments on the aft side and two 90* hose attachments forward of the firewall. I installed the crimp clamp on the aft side of the firewall and re-situated the hose that run aft to the AC unit.
I received the evaporator core that will be mounted on the inside of the baggage bulkhead. This “again” is not done as others have done before since the idea is to help move the weight more forward and also to place the intake of the evaporator directly into the “conditioned air” environment. There had been reports of other installs that were not able to keep the system tightly sealed and thus caused poor performance of the AC system. This different install will certainly create new install challenges but I think overall this will work well. I will need to trim the Aerosport overhead so the evaporator will slide up into it for better alignment. A shroud duct will need to be made to cover and join together the area. Further updates to come.