Cabin side. You can see the divider that keeps the cool and warm air separate.
The metal duct directs a large portion of the cool air to the outside through a 2" hole.
The problem with using a 5000 BTU AC in a teardrop is that
it's just way
overpowered for the space so it cools really fast but won't pull out the
humidity very well.
My solution was to "detune" the AC by venting away a
portion of the cool air and using that air to cool the
outside coils. This causes the AC to run for a much longer time and that allows
the humidity to get pulled out.
First the cabin side. I hid the AC in the rear bulkhead
between my cabinets.
The room air is pulled in from the underside of the cabinets and the cool
air is pushed out through the top. The two areas are separate so none of
cool air goes back into the air intake. Photos.
Cabin side. You can see the divider that keeps the cool and warm air separate.
The metal duct directs a large portion of the cool air to the outside through a
2" hole.
Here the cover is in place. The vent is held in place with
velcro so I just pull it off to get access to the controls.
The Tabasco part is off a slot machine and is just for decoration.
The rough opening on the galley side.
AC in place. You can see the hole that vents out some of the cool air above the
AC.
Here I have dividers in place to separate the cool and warm sides of the AC.
The area to the right and top of the AC is for the cool air intake. The left
side is for the warm air outlet.
With the top cover in place. That seals up the cool air part above the AC.
Bottom cover in place. I have the vents installed upside down
because I liked the looks better and it directs the warm air up.
This is a close up of the Tabasco sign I'm putting in the back for decoration.
Tabasco sign installed. Again I made a plywood frame for it. (10/02/2009)
Test today 09/05/2009
Outside temp at start 73.2 Humidity at 71
Outside temp a stop 73.5 Humidity at 70
Inside temp at start 75.2 Humidity at 63
Inside temp at stop 55.2 Humidity at 60