Unirac?

Re: Unirac?

Unirac makes a few different systems.

Using the Solarmount, you have some kind of footing. This could be just the L-foot, but is more likely a standoff, then an L-foot on top of that. You could also you another brand of footing like Quickmount and put Unirac rails on that.

After the footing you mount the rails to the L-feet. If the rails are long, you use a splice kit.

You put the modules on top of the rail. In a top mounted system you use clamps that attach to the rail and squeeze down on the module frames when you tighten them. In a bottom mounted system you use bolts through the existing holes in the module frames.

That's a general description. Any specific questions?

Re: Unirac?

A lot of times instead of mounting the L-foot directly to the roof it will sit on top of a stand off like this.

http://www.unirac.com/images/gallery/sunframe-attachment-2.jpg

I don't have a good picture of this, but for the top mount there's a little channel on top of the rail. You insert a strange bolt that can go into the channel and when you twist it it can't come out. You can twist it back to remove it, but when you tighten the nut above the clamps it will stay in there an hold the modules down with pressure.

http://www.solarcapitalist.com/unirac_clamps.jpg

http://www.myrealtypage.com/images/alan/solar4.jpg