I will be having a mini-split installed in a home theater I am building in a basement. I will also have a condensate pump installed since this is below grade.
I work in a public school district and walked into one of our computer labs today. I knew this lab was getting air conditioned and sure enough a mini-split had been installed on one wall about 8 feet in the air. The contractor who installed it was not finished yet and nowhere in site when I was there.
On the same wall, about a foot to the left and about a foot ABOVE the mini-split, there was a condensate pump mounted on the wall. This appeared to be a standard Little Giant condensate pump with holes for a drain line to run into, and spots to hook a vinyl hose for the pump. Sure enough there was a vinyl hose coming out of the pump and going up to where it excited the building. There was also a vinyl hose shoved into one of the tank holes that went behind the mini-split, presumably to the drain on the mini-split unit.
I always thought the drain line for a mini-split had to use gravity to get the water into the condensate pump. In other words, the condensate pump always had to be below the mini-split drain line itself.
How are they getting this setup I described to work? I could not ask the contractor since he was not there so I am hoping somebody can solve this mystery