2. Titel des Vortrages 01/2007 The following slides explain the commissioning of a FRONIUS IG inverter. Please note that each slide is provided with sound. Please switch on your loudspeakers and press the keys at the bottom of each slide to proceed.

3. © Fronius 01/2006 Commissioning a FRONIUS IG inverter Mount the FRONIUS IG on the wall First, mount the wall bracket. Hang the FRONIUS IG Inverter on it. Fix the inverter to the wall bracket with the 2 screws on the bottom. For multiple inverter systems, please provide an air space between inverters of at least 6 inches.

4. © Fronius 01/2006 Commissioning a FRONIUS IG inverter Open up the Faceplate Open up the 4 screws of the faceplate in order to get into the connection area. Please remove the display ribbon cable carefully.

5. © Fronius 01/2006 Commissioning a FRONIUS IG inverter Electrical Installation - DC Make sure that both internal disconnects are in the off (down) position. Connect DC positive to the left and DC negative to the right on the DC Terminal block as shown. After tightening the screws to fix the cables in place, measure to verify that the DC voltage is between 150V and 500 Volts. Please check the polarity* * Reverse polarity may damage the inverter. FRONIUS warranty doesn´t cover damage caused by inappropriate installation.

6. © Fronius 01/2006 Commissioning a FRONIUS IG inverter Electrical Installation - AC Make sure that both internal disconnects are in the off (down) position. Connect phase 1 to the left side of the AC disconnect as shown. Connect phase 2 to the right side of the AC Disconnect. After tightening the cables, please measure and verify the AC voltage* on the lower screws of the AC disconnect. * The AC voltage should be between 215V to 260V for the 240V units and between 185V and 225V for 208V units.

7. © Fronius 01/2006 Commissioning a FRONIUS IG inverter Close the Faceplate Connect the ribbon cable of the display carefully to the inverter. Tighten the 4 screws in order to mount the faceplate. Turn the internal DC and AC disconnects on (up). If the DC breaker trips open or if the display does not light up, turn the unit off and check for reverse polarity on the DC inputs.

8. © Fronius 01/2006 Commissioning a FRONIUS IG inverter FRONIUS technical support For more information please dont hesitate to contact FRONIUS technical support phone: 810 220 4414 fax: 810 220 4424 pv-us-support@fronius.com www.fronius-usa.com