Installation manual

Safety, Installation, and Operations Manual

Power Unlocked by Design

Table of Contents

Important Safety Information, Save These Instructions ........................................................................ 5

Read this First ........................................................................................................................... 5

Safety Instructions .................................................................................................................... 5

Product Labels ........................................................................................................................... 5

Safety and Advisory Symbols ....................................................................................................... 5

Safety Instructions ..................................................................................................................... 6

PV Rapid Shutdown Equipment (PVRSE) ........................................................................................10

The Enphase IQ System ..................................................................................................................11

How the Enphase IQ Microinverter for PowerXT

-R-AC Module Works ................................................12

System Monitoring ................................................................................................................12

Optimal Reliability .................................................................................................................12

Ease of Design ......................................................................................................................12

Planning for PowerXT

-R-AC Module Installation ...............................................................................13

Planning the Racking .................................................................................................................13

Grounding Considerations...........................................................................................................13

Branch Circuit Capacity ..............................................................................................................13

Utility Service Requirements .......................................................................................................13

Wire Lengths and Voltage Rise ..................................................................................................... 14

Lightning and Surge Suppression .................................................................................................14

Parts and Tools Required ................................................................................................................15

Enphase Equipment ...................................................................................................................15

Other Items ..............................................................................................................................15

Solaria PowerXT

-R-AC Module Installation ......................................................................................16

Step 1: Install an AC Junction Box ................................................................................................17

Step 2: Position the Enphase Q Cable. ...........................................................................................17

Step 3: Connect to a Junction Box . ............................................................................................... 18

Step 4: Terminate the Unused End of the Cable ...............................................................................18

Step 5: Prepare the AC Modules ...................................................................................................20

Step 6: Module Mounting ............................................................................................................21

Step 7: Use the Serial Number Labels to Create the Installation Map ...................................................25

Step 8: Connect the Microinverters as the AC Modules are Installed ...................................................26

Step 9: Manage the Cabling ......................................................................................................... 26

Step 10: Grounding ....................................................................................................................27

Step 11: Energize the System ......................................................................................................28

Step 12: Set Up and Activate Monitoring ........................................................................................29