So, I am in the process of installing a new ductless mini split Pioneer air conditioner, similar to this one. One of the steps involved was to set-up these mounting brackets to the exterior of concrete foundation wall, where the condenser will be secured. Unfortunately the mounting brackets came without any installation instructions so it took a bit of figuring out. Took about an hour and it was a pretty easy job.
Tools I needed:
Masonry drill bit 1/2 inch size
Socket wrench with deep 17mm socket (or possibly 11/16in would have also worked)
Socket wrench 9/16 inch
Wrench 9/16 inch
1. I unpacked the brackets and laid them out. The kit included the mounting brackets, masonry/concrete expansion anchors, rubber pads, bolts nuts and washers.
2. I measured the required distances from the side walls and any other objects as per condenser manufacturer’s instructions (mine was at least 12 inches away from the walls or obstructions). Then I put first bracket against the wall and mark the hole openings on the concrete. Measured the distance between the mounting “feet” of my condenser (mine was 18 inches across). Using a level, I drew two horizontal lines from markings I just made on the wall and marked the holes for the second bracket (18 inches away). Finally I drilled the holes using hammer drill and 1/2 masonry bit.
3. After holes were drilled, I Inserted concrete anchors in them, put up the brackets against it and tightened with provided washers and bolts using 17mm deep socket wrench (11/16 inch should have also worked but I only had metric with deep sockets). I tightened all bolts gradually before finally tightening them firmly. Level placed across the two brackets helped to ensure they were both plumb and level.
4. Next I secured the brackets in open position using provided bolts, plastic and metal washers (to prevent rusting bolts against metal washers) and nuts. I needed a 9/16 inch wrench for that
5. Next, using included longer bolts and washers I put rubber paddings – for now held by friction only.
6. While aligning properly, I carefully placed the condenser on the rubber pads with bolts protruding through the holes, placed metal washers, then plastic washers and finally tightened with bolts using 9/16 inch wrench, while holding the bolts with 9/16 inch socket wrench .
This part of the installation was complete and I was ready for next phase.