Air conditioner mod?

AC is my business

Yes, increasing air flow across the coil will reduce head pressure, thus reduce suction pressure making the air colder, to a point. I'd like to see accurate before/after air flow readings, not "modeled" with a little 12 volt fan. CFM and static pressure (that's the pressure loss across the louvers he's reducing) are not a linear relationship. The proof really is in the reduction of head pressure and there is no before/after reading.

I found a big installation error on my last rig and this reminds me to check this one. When they installed the ducted conversion on my last one they did not seal the supply and return plenums properly, meaning a lot of air was just short cycling between supply and return, not getting to the space. Took some foil tape and sealed between the two plenums and it helped A LOT!

sjturbo wrote:
My bad! Here is the link https://www.youtube.com/watch?v=aWUqQnEw-8Y. Hope this gets you there. I live in extreme heat although I rarely RV in it! I just thought if any one else had tried it they could offer a second opinion. It technically makes sense but does it really make much of a difference was my question.

clicky: https://www.youtube.com/watch?v=aWUqQnEw-8Y

Thanks SoundGuy. I checked out the discussion link but it did not answer my question.

My bad! Here is the link https://www.youtube.com/watch?v=aWUqQnEw-8Y. Hope this gets you there. I live in extreme heat although I rarely RV in it! I just thought if any one else had tried it they could offer a second opinion. It technically makes sense but does it really make much of a difference was my question.

sjturbo wrote:
I recently saw a ytube vid on cutting out the plastic "grill" on the fan output side of the condenser and replacing it with metal lath to improve air flow and thus improving the efficiency of the air conditioner. Has anyone tried this? And did you notice any difference?

Recent discussion ...

https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/29723690/srt/pa/pging/1/page/1.cfm

Do you have the exact name of the video or the link to it?
Pat

I also watched that video and it makes sense. I'm not in extreme heat so it's not something I'm going to do but when replacing my AC unit I found two things which probably helped my system a lot. One issue was the loose divider baffle between the warm and cold sides and the tubes where they connect to the duct vents letting cool air into the roof cavity.

On my old girl I figured it was mainly age related but the more you look at RV construction it would be easy to believe they come from the factory that way.