Mini-Split Airconditioners

Not sure about mounting them into RV's that the roll down the road, but here in our park in Nevada there about 3 stationary 5th wheels that have them installed. And when the day comes when my 15 BTU unit quits I'll be installing one myself.

Actually it is a matter of length. We just had a two unit system installed and the installer told me if we didn’t have a 25 foot minimum run he would have to bury some outside. A shorter run will cause the inverter to cycle too often. He mentioned that the house he just bought has the problem because of a poor installation and he needs to fix it. Another issue with our system is it uses flared fittings rather than soldered and they would never hold up. The ducted mini-splits are great systems and can be squeezed anywhere and are really quiet. This was our second installation with the previous one in a 150 year old house.

Dave

rk911 wrote:
we had a mini-split installed at the house last year to warm/cool our enclosed porch. the unit came with and required ~25' of hose and cable. the installer said that the mfg (Daikin) install instructions state that the hoses and cables cannot be shortened or lengthened. We were able to stuff the excess hose and cable into a space above a closet. Not sure if this is the case with all mini-splits but anyone interested should be sure to ask.

I suspect it's not an issue of length but the tubing is part of the sealed coolant circuit...the manufacture likely doesn't want to deal with people breaking the seal and then they can't get it resealed and recharged.

Related to that, how will the fittings hold up bouncing down the road...if it's a trailer put at a permanent site and rarely moved, it's probably OK but if there is a lot of towing I would bet the manufacturer isn't going to warranty failures.

I would question going with a 12k btu unless it's a small trailer. Standard RV units start at 13.5k with 15k btu often failing to keep up with a single unit.

Finally, what are the power specs. I suspect, you won't see a dramatic reduction in amps when running at full power.

rk911 wrote:
we had a mini-split installed at the house last year to warm/cool our enclosed porch. the unit came with and required ~25' of hose and cable. the installer said that the mfg (Daikin) install instructions state that the hoses and cables cannot be shortened or lengthened. We were able to stuff the excess hose and cable into a space above a closet. Not sure if this is the case with all mini-splits but anyone interested should be sure to ask.

Yes they all that we have been around are 25 feet. No design to be un connected once installed or the ones we have done. Also ensure they are 110v and not 220v ones.

I have to wonder how long the fittings will hold up to the rigors of road travel. The old fashioned rooftop has minimal tubing and I believe directly soldered connections.
The mini is going to have a dozen or more feet of tubing and a bunch of connections.

Just pondering, no direct experience.

we had a mini-split installed at the house last year to warm/cool our enclosed porch. the unit came with and required ~25' of hose and cable. the installer said that the mfg (Daikin) install instructions state that the hoses and cables cannot be shortened or lengthened. We were able to stuff the excess hose and cable into a space above a closet. Not sure if this is the case with all mini-splits but anyone interested should be sure to ask.

I've seen a few installations on the WEB of Mini Split on RV's. I have given some thought to it also and I like the idea of them. Ones that I have seen were installed on Travel Trailers and looked Great. I'm sure you can find Pic on the Web....

clicky: https://www.ebay.com/itm/25-Seer-12000-BTU-Ductless-Mini-Split-AC-Air-Conditioner-Energy-Star-110V-WIFI/183226616042