Old Trace model 2012SB (I think)

[LilMT]

Hey all,
A friend bought a small off grid place that had a system installed when they purchased.
They have upgraded but kept all of the old equipment.
I believe the one piece is and inverter/charger. The Trace 2012SB.
I was wondering if anyone knows where I might be able to find a manual for it?
We have another neighbor that weekends and would like to try the system out but I want to test it out first. 

I have attached a couple of poor pictures.   

Thanks all.