SolarCity H6 - Page 4

H6 Hybrid Inverter - Installation & Operation Guide
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3.6 - Whole-Home Backup at the Main Panel ..................................................................35
3.6.1 - Mechanical Interlock Kit on the Main Panel......................................................35
3.6.2 - Mechanical Interlock Kit on a Separate Manual Transfer Switch.......................36
3.6.3 - Sources for MIK and MTS Products................................................................. 37
3.7 - External Components............................................................................................. 37
3.7.1 - PV Array ......................................................................................................... 37
3.7.2 - Battery Pack ..................................................................................................38
3.7.3 - Back-up Electrical Panel.................................................................................39
3.7.4 - Main Electrical Panel ...................................................................................... 41
3.8 - Fireman Switch and Rapid Shutdown......................................................................42
3.8.1 - Components ..................................................................................................42
3.8.2 - System Diagram .............................................................................................43
3.8.3 - Fireman Switch Sequence ..............................................................................44
3.8.4 - DC Disconnect Switch Sequence ....................................................................45
4 - Installation .....................................................................................47
4.1 - Visual Inspection....................................................................................................48
4.2 - Selecting a Location ..............................................................................................48
4.3 - Mounting the Inverter ............................................................................................50
4.3.1 - Installing the Inverter Mounting Bracket ...........................................................51
4.3.2 - Hanging the Inverter ......................................................................................52
5 - Electrical Connections.....................................................................55
5.1 - System Wiring Diagrams.......................................................................................... 57
5.2 - Wiring Box Cover ...................................................................................................59
5.2.1 - Remove Wiring Box Cover ............................................................................... 59
5.2.2 - Refit Wiring Box Cover ...................................................................................60
5.3 - Conduit Plugs and Fittings.......................................................................................61
5.4 - Grounding Connections......................................................................................... 62
5.5 - Using the Spring Clamp Connectors ....................................................................... 62
5.6 - PV Connections ..................................................................................................... 63
5.6.1 - Limitations.....................................................................................................64
5.6.2 - Wiring ...........................................................................................................64
5.7 - Battery Pack Connections ......................................................................................65
5.7.1 - Wiring ............................................................................................................ 65
5.7.2 - Fuses.............................................................................................................66
5.7.3 - Communications............................................................................................66
5.8 - AC Voltage ............................................................................................................ 67
5.8.1 - Output to Grid ............................................................................................... 67
5.8.2 - Utility Back-Feed (OCPD) Circuit Breaker........................................................68
5.8.3 - Output to Backup Load Center.......................................................................68
5.9 - Communications ................................................................................................... 69
5.9.1 - ZigBee & Gateway...........................................................................................69
5.9.2 - Integrated Revenue Grade Meter (RGM) ..........................................................69
5.9.3 - PV-Only Charging...........................................................................................69