AC temps ?

[ci4mynewf]

Like most people say is to keep it on, close all shades, pull the upper bunk curtains, cover the door window and I also put a small fan in the back to blow air forward.

[solocanoejake]

Forgot to mention fans. A pedestal fan in the living room and the a/c- heater fan run constantly too.

[Camper_bob]

Originally Posted by ralett

We just got back from 7 days in 115+ temps at the Colorado River. We did this trip last year and could not get our 2018.5 Seneca below 90 degrees inside until the sun went down. Even then, it ran in the high 80's inside with both ACs running on Hi Cool.

I went though all the threads referenced earlier and fixed all the plenum/ducting issues on our AC units (the install was completed jacked with the plenum separator on the front AC unit laying almost flat, blocked ducts, torn plenum liners, etc.). Making these fixes made a huge difference.

I also rigged up a portable AC unit (10K) which sits between the front seats and ducts out through the passenger window. I set this up once we were parked and ran a separate 120 AC cord to the power box.

With that setup, we ran 73 degrees inside the rig when it was 115+ outside, and we had full sun, no shade at all, with the rig parked facing south.

At night, with an outdoor low temp in the high 80's, the rear AC unit was off more than it was on. The front units ran all night long.

My take is in the extreme heat, the Senecas just need more AC in the front to keep the rig really cool.

How did you rig the exhaust? Did you "fabricate" something to limit leakage out of an open window?

[ralett]

Yes. I cut a piece of 1/2 plywood and a piece of 3/4" foam insulation board roughly the shape of the window. The foam board is attached to the plywood. This assembly sits on the outside up against the rubber window gasket to form an air seal. I use a couple of 1" x 2" hardwood pieces on the inside with all-thread rod, washers & nuts to draw the outside piece tight against the window gasket. A hole is cut in the plywood/foam board for the AC exhaust duct to vent outside. I also have the power cord running to the outside via a small hole drilled in the plywood/foam board. The only real draw back is the door won't open when this is installed but I only use it when parked.

[Packerbacker_TX]

Originally Posted by Midnightmoon

The differential is measured from input air temp. Normally, output should be in the 20 degree +/_ range from that input air temp.

Nuff Said!! Nice job Midnightmoon!