$e soils Auto-transformer quick installation guide 1. Introduction This quick installation guide is prepared for the auto-transformer used with hybrid inverter in a split phase system. The backup port of the hybrid inverter has a rated output AC voltage of Z40VAC L1-L2. Ifa 120V backup load is connected in the system, the auto-transformer can be installed to the backup port to create the L1-N-L2 connection thus supporting 120V loads with L-N or L-N.
