enphase IQ System Controller 2 User Manual

26
IQ System Controller 2 Quick Install Guide
There are multiple scenarios for CT wiring. For a complete
description, refer to IQ Gateway QIG.
Place the Consumption CTs as shown below for:
• Whole home backup
• Partial home backup with Power Control Systems (PCS) for
Main Panel Upgrade (MPU) avoidance
• Any system with generator integration
For PCS setup, refer to the Enphase Installer App.
IQ Gateway Terminal Block
Not used
White
Blue
White
Blue
Relay contacts
(if needed)
CU, C, AWG MIN
MEAS CAT III
OVC III
PD, B
OVC II
NLL
P
Production
Digital Input
1234 NO
REF CCommon
Relay
Consumption
C C
If PCS is used, place the following label on the dead front with the
PCS setting lled in the blank space.
When installing a generator, the generator CTs should be paralleled
to the Consumption CTs wiring using a Wago nut.
CT wiring
Section C - Wiring
If using PCS - after placing the Consumption CTs and wiring to the
IQ Gateway, the following label has to be pasted on the CTs.
This sensor is part of a Power Control System. Do not remove
or disable. Replace with same type and rating.
THE MAXIMUM CURRENT BACKFED BY THIS SYSTEM TO THE MAIN PANEL MAY BE
CONTRTOLLED ELECTRONICALLY. REFER TO MANUFACTURER’S INSTRUCTIONS
FOR MORE INFORMATION
PCS CONTROLLED CURRENT SETTINGS: AMPS
Consumption CTs are placed on L1 and L2 main
wiring to IQ System Controller 2.
For partial home backup systems without
generator integration and without PCS for MPU
avoidance, place the CTs on L1 and L2 between
the meter and the main panel.
If you are using CT-200-SPLIT, ensure the CT has
“Service Entrance Rated” label on it.

enphase IQ System Controller 2 Specifications

General

Brand	enphase
Model	IQ System Controller 2
Category	Controller
Language	English