GiveMeLiberty wrote:Okay, so here's what I'm planning to do, install a window unit in the space between the headboard and the front of the teardrop with a cargo door behind the condenser. All hidden, nothing sticking out and cargo door open when using the AC. I have plenty of room, but I was wondering if anyone has done this and were they successful in getting the condensate to drain away without any issues. My plans are to build a waterproof compartment with a drain that will drip underneath the camper. I may make a fiberglass containment with a recessed trough to channel the water to the drain. Any ideas or comments would be greatly appreciated!
Thanks,
Duane
* My window unit A/C is completely hidden (mounted in the rear bulkhead between the sleeping quarters and the galley/storage space), and doesn't need the rear hatch open to run (the hatch is closed & locked at night). Though I built a drain pan with hose leading below the floor, I've never detected any moisture in either, so my LG lw5012J unit must be producing little or no condensate).
* As stated above, my window A/C unit never drips, which sorta makes me mad because of the effort I put into fabricating (of waterproof material) a drain pan with attached outlet for overflow, but I didn't expect it to, anyway. It's an LG 5k unit, and since I already had experience using an 8k btu LG A/C in my wife's old home office, I knew that there would likely be little condensate drippage, if any. But, I did drill a 1/4" drain hole just to be safe, even though my LG lw5012J unit didn't require one (as opposed to a similar model lw5012).

- LG model lw5012J airconditioning unit.JPG (57.87 KiB) Viewed 765 times
* The way I enclosed the exhaust and routed it out to the right in an insulated duct may explain some of the reason for no excess moisture. The exhaust enclosure retains enough heat to evaporate excess (not being used to cool the coils via the inner fan), but having a high flow inline axial fan in the duct expels the retained heat fast enough to prevent moisture build-up and/or thermal shutdown.
http://www.tnttt.com/viewtopic.php?f=21&t=54945&hilit=thermal* In any case, the A/C system works fine, never drips, and was worth the time invested in it, though the right angle ducting could've been replaced with a box attached to the rear hatch, with exhausting louvers thru it (so it would still function at night with the hatch closed). Sure, I lost the "galley" function of my rear storage space, but I prefer to prepare and cook food on the side of my 4x8 trailer, which is partially covered (4' deep x 8' length area) by my canopy, anyway.

installed in rear bulkhead
right angle vent boot attached
8" diameter outlet, to be reduced to 6" ducting
drain pan and overflow outlet tube
as completed (at first)
as it is now, years later