IQ Load Controller Installation

ManualsBrandsEnphase ManualsAccessoriesIQ Load Controller with 2 Circuit Relay Contactors

INSTALLATION REFERENCE SHEET

Model number: EP-NA-LK02-040

Install an IQ Load Controller with the Enphase

Storage System

The Enphase IQ Load Controller, when used in conjunction with the IQ System Controller, enables control of up to two dedicated loads or shedding of up to two

solar circuits when operating in an off-grid mode with the Enphase Energy System. To install the IQ Load Controller, read and follow all warnings and instruc-

tions in this guide. Safety warnings are listed on the back of this guide. If you do not fully understand any of the concepts, terminology, or hazards outlined in

these instructions, refer installation to a qualied electrician or installer. These instructions are not meant to be a complete explanation of a renewable energy

system. All installations must comply with national and local electrical codes. Professional installation is recommended.

The IQ Load Controller is an outdoor-rated, NRTL-certied NEMA type 4X enclosure with a DIN rail that contains two contactors, a power supply, wire for con-

trol connections and other wiring accessories. Use the IQ Load Controller for controlling dedicated, heavy, split-phase loads or for solar circuit shedding when

solar power exceeds allowed solar to storage ratios. Heavy loads are those that exceed the power or surge capabilities of your energy management system.

The IQ Load Controller supports control of 2 split-phase loads i.e., loads wired L1-L2 and running at 240V nominal AC voltage or 4 loads running at 120V nomi-

nal AC voltage.

IMPORTANT: The Enphase IQ Load Controller is an accessory for the IQ System Controller. The IQ System Controller is required to control loads or shed

excess solar circuits using the IQ Load Controller.

For more details, refer to the load control technical brief available at: https://enphase.com/installers/storage/load-control

service names are the trademarks of Enphase Energy, Inc. Data subject to change. Rev05-11-23-2021

Summary of content (5 pages)

PAGE 1
INSTALL ATION REFERENCE SHEE T Model number: EP-NA-LK02-040 Install an IQ Load Controller with the Enphase Storage System The Enphase IQ Load Controller, when used in conjunction with the IQ System Controller, enables control of up to two dedicated loads or shedding of up to two solar circuits when operating in an off-grid mode with the Enphase Energy System. To install the IQ Load Controller, read and follow all warnings and instructions in this guide.
PAGE 2
EP-NA-LK02-040 PREPARATION A ) Download the Enphase Installer App version 3.X mobile app and open it to log on to your Enphase App account. You will require this application to commission and program IQ System Controller to work with the load control box. To download, go to enphase.com/toolkit.
PAGE 3
D ) Test the Low Voltage Connections NOTE: For the purpose of the low voltage wiring connections test described next, please ensure you connect the feed-through headers to the NC contacts. Post completion of this test, for the actual system commissioning, you may choose either NC or NO ports available on the IQ System Controller. At this point, you have completed all the low voltage wiring connections. Conduct the following test to ensure everything has been correctly wired so far.
PAGE 4
INSTALLATION - PART 3 1 Testing the IQ Load Controller with the IQ System Controller Once the complete circuit has been wired, perform the below checks to A ) Validation of Auxiliary contacts using Enphase Installer App Go to the ‘Live Status Screen’ in step 7 of system commissioning for validating the auxiliary contact connection. Follow the workflow and check that the system is behaving as expected. For more details, please refer to the technical brief( available at: https://enphase.
PAGE 5
D ) Connect the AC lines of the Contactors Once the above test has successfully been performed, complete the circuit by following the below steps: 1) Connect the 2 wires from L1 & L3 of the contactors to a double pole breaker on the combiner. 2) Connect the 2 wires from T1 & T3 of the contactor to the PV. Contactor wiring diagram for PV shedding RMA instructions for the load control box A ) Enphase Store provides an option for a 30 days no questions asked return.