Fronius Symo Hybrid 3.0, Installation Instructions Manual, Page: 3 / 40

Contents
Installation location and position 4
Explanation of safety notices 4
Safety 4
Proper use 5
Choosing the location of the inverter 6
Installation position of inverter 8
Fitting the inverter mounting bracket 10
Safety 10
Selecting wall plugs and screws 10
Recommended screws 10
Opening the inverter 10
Do not warp or deform the mounting bracket 11
Fitting the mounting bracket to a wall 12
Installing the mounting bracket on a mast or beam 12
Fitting the mounting bracket to metal supports 13
Connecting the inverter to the public grid (AC side) 14
Safety 14
Monitoring the grid 14
AC terminals 15
Type of AC cable 15
Preparing the aluminium cables for connection 15
Cross section of the AC cable 16
Requirements for the neutral conductor 16
Connecting the inverter to the public grid (AC) 16
Routing the AC cables 17
Maximum fuse rating on alternating current side 18
Connecting solar module strings to the inverter 19
Safety 19
General comments regarding solar modules 20
DC terminals 20
Connecting aluminium cables 20
Do not ground the poles of the solar modules 21
Solar module strings - checking the polarity and voltage 21
Connecting solar module strings to the inverter (DC) 21
Routing the DC cables 23
Connecting the battery to the inverter 25
Connecting the battery DC cables to the inverter 25
Overview of Fronius Energy Package DC cabling 27
Connecting the Modbus cables to the inverter 27
Terminating resistor for Modbus cable 28
Attaching the inverter to the mounting bracket 30
Attaching the inverter to the mounting bracket 30
Starting for the first time 32
Starting the inverter for the first time 32
Activating the emergency power function 34
Prerequisites for emergency power mode 34
Accessing the CONFIG menu 34
Selecting alternative (emergency power) setup 35
Fronius Ohmpilot and emergency power mode 35
Installing Fronius system monitoring – Overview 36
Safety 36
Starting for the first time 36
Information to help you work through the Solar Web wizard 38
Notes regarding maintenance 39
Maintenance 39
Cleaning 39
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