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.