Installation Procedure; Step 1 - Measure Ac At The Electrical Utility Connection - enphase M215 Installation And Operation Manual

Installation Procedure

Installing the Enphase Microinverter System involves several key steps. Each step listed below is detailed in
the following pages.
Step 1 – Measure AC at the Electrical Utility Connection
Step 2 – Install the AC Branch Circuit Junction Box
Step 3 – Position the Enphase Engage Cable
Step 4 – Attach the Microinverters to the PV Racking
Step 5 – Dress the Enphase Engage Cable
Step 6 – Connect the Microinverters
Step 7 – Terminate the Unused End of the Engage Cable
Step 8 – Connect the Engage Cable to AC Junction Box(es)
Step 9 – Ground the System
Step 10 – Complete the Installation Map
Step 11 – Connect the PV Modules
Step 12 – Build the Virtual Array
WARNING: DO NOT connect Enphase Microinverters to the utility grid or energize the AC
circuit(s) until you have completed all of the installation procedures as described in the
following sections.
Step 1 – Measure AC at the Electrical Utility Connection
Measure AC line voltage at the electrical utility connection to confirm that it is within range. Acceptable
ranges are shown in the following table.
Single-phase 240 Volt AC
L1 to L2
L1, L2 to neutral
Three-phase 208 Volt AC
L1 to L2 to L3
L1, L2, L3 to neutral
NOTE: Check the labeling on the Engage Cable drop connectors to be sure that the cable
matches the electrical utility service at the site. Use 208 VAC (208 VAC three-phase) Engage
Cable at sites with three-phase 208 VAC service, or use 240 VAC Engage Cable at sites
with 240 VAC single-phase service. Use 240 VAC cable at sites with 208 single-phase
service.
9
211 to 264 VAC
106 to 132 VAC
183 to 229 VAC
106 to 132 VAC
Copyright  2012 Enphase Energy
M215 Installation and Operation
141-00012 Rev 04