Enphase Microinverter Manual
Table Of Contents
- Important Safety Information
- The Enphase IQ System
- Planning for Microinverter Installation
- Parts and Tools Required
- Enphase Microinverter Installation
- Step 1: Position the Enphase Q Cable
- Step 2: Position the Enphase Q Aggregator or Junction Box
- Step 3: Mount the Microinverters
- Step 4: Create an Installation Map
- Step 5: Manage the Cabling
- Step 6: Connect the Microinverters
- Step 7: Terminate the Unused End of the Cable
- Step 8: Complete Installation of the Enphase Q Aggregator or Junction Box
- Step 9: Connect the PV Modules
- Step 10: Energize the System
- Set Up and Activate Monitoring
- Troubleshooting
- Technical Data
IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation
© 2020 Enphase Energy Inc. All rights reserved. 141-00047-01
43
Sample Wiring Diagram
D
C
B
A
B
A
1
3
4
5
678
1
2
3
4
56
78
D
C
JUNCTION BOX
NEUTRAL
GROUND
AC DISTRIBUTION PANEL
OR SUBPANEL
ONE 2-POLE 20 AMP
CIRCUIT BREAKER
PER BRANCH CIRCUIT
IQ ENVOY
TO METER
OR AC DISTRIBUTION
PANEL
Q CABLE
BLACK - L1
RED - L2
TERMINATOR CAP
INSTALLED ON
END OF CABLE
IMPORTANT: Make sure to measure the line-to-line and the line-to-neutral voltage
of all service entrance conductors prior to installing any solar equipment. The voltages
for the microinverters should be within the following ranges:
- 240 VAC: line to line: 211 to 264 VAC, line to ground: 106 to 132 VAC.
- 208 VAC: line to line: 183 to 229 VAC, line to ground: 106 to 132 VAC.
NOTE: Ground PV modules according to local requirements.
ENPHASE IQ 7, IQ 7+, IQ 7A, and IQ 7X MICROINVERTER
FIELD WIRING DIAGRAM
© 2019 Enphase Energy Inc. All rights reserved
METER
UP TO 16 IQ 7 MICROS, 13 IQ 7+ MICROS, 11 IQ 7A MICROS,
or 12 IQ 7X MICROS PER 240 AC BRANCH CIRCUIT
NOTE: The IQ 7 Micro, the IQ 7+ Micro, the IQ 7A Micro, and the IQ 7X Micro have integrated ground and double
insulation, so no GEC or EGC is required. The DC circuit is isolated and insulated from
ground and meets the requirements of NEC 690.35