enphase IQ System Controller 3 Quick Install Manual
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Summary of Contents for enphase IQ System Controller 3
- Page 1 SC 2 0 0 D 111C240US 01 SC 2 0 0 G 111C240US 0 1 V E R SI O N 4. 0 APR I L 2023 PR E L I M INARY IQ System Controller 3/3G Quick Install Guide...
- Page 2 A third distributed energy resource (DER) port is dedicated to generator integration which is interlocked via hardware with the MID. IQ System Controller 3 supports additional IQ Battery 5P on the third DER port. To install the IQ System Controller and wall-mount bracket, read and follow all warnings and instructions in this guide and documents at enphase.com/support.
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Page 3: Table Of Contents
Scenario 1 Section B Mounting the breakers Full Energy Independence configuration Internal view of IQ System Controller 3/3G Whole Home backup with IQ System Controller 3 Wiring for service entrance Scenario 1a Install main and backup breakers Full Energy Independence configuration... -
Page 4: Whole Home Backup With Iq System Controller
With the flexibility offered by Enphase Energy System, customers can choose to install a system that caters to their current and future energy needs. The following illustrative scenarios showcase some of the capabilities: Scenario 1 Whole Home backup with IQ System Controller 3 This is the preferred configuration for the backup of the entire main load panel. -
Page 5: Scenario 1A
Additional wiring and components are required when integrating generators. Refer to the Generator integration page for technical briefs and guides This figure shows the system configuration. For wiring, https:/ /enphase.com/installers/storage/generator. follow the details in the wiring section. IQ System Controller 3/3G Quick Install Guide... -
Page 6: Scenario 2
Note: The System Shutdown Switch is not used for IQ6, IQ7, and M Series This figure shows the system configuration. For wiring, systems. Refer to the System Shutdown wiring section for details. follow the details in the wiring section. IQ System Controller 3/3G Quick Install Guide... -
Page 7: Scenario 2A
Additional wiring and components are required when integrating generators. Refer to the Generator integration page for technical briefs and guides This figure shows the system configuration. For wiring, https:/ /enphase.com/installers/storage/generator. follow the details in the wiring section. IQ System Controller 3/3G Quick Install Guide... -
Page 8: Scenario 3
Do not install a Sunlight Backup system for a whole home backup scenario. This configuration can only be supported with IQ8 Series Microinverters. This figure shows the system configuration. For wiring, follow the details in the wiring section. IQ System Controller 3/3G Quick Install Guide... -
Page 9: Scenario 3A
Additional wiring and components are required when integrating generators. Refer to the Generator integration page for technical briefs and guides This figure shows the system configuration. For wiring, https:/ /enphase.com/installers/storage/generator. follow the details in the wiring section. IQ System Controller 3/3G Quick Install Guide... -
Page 10: What's In The Box
Label Feed-through header with Cable Assy Header System Shutdown feed-through Cable assembly Enpower 200G R2 header with cable assembly Labels required as per NEC NEC Labels for Rapid Shutdown Label for Rapid Shutdown IQ System Controller 3/3G Quick Install Guide... -
Page 11: Tools/Additional Items Required
#10,1/4" or 5/16" lag bolts or screw 3" long (depending As required Provided by installer on attaching wall) for each wall-mount bracket Control wire As required Distribution/Enphase Store* * Enphase SKU for control cable: CTRL-SC3-NA-01 IQ System Controller 3/3G Quick Install Guide... -
Page 12: Section A
Do not install the product in a very dusty environment. -40°C • This product must not be installed at altitudes above 8,200 ft (2,500 m). • In flood-prone areas, ensure that the clearance from the ground is sufficient to avoid water ingress. IQ System Controller 3/3G Quick Install Guide... -
Page 13: Step 1: Minimum Clearance
Follow all local standards and regulations related to the mounting of an IQ System Controller. 6 i n 6 i n 6 i n 3 6 i 1 9 . 7 9 . 7 IQ System Controller 3/3G Quick Install Guide... -
Page 14: Step 2: Install The Mounting Bracket
Check with a structural engineer and local standards for local Controller is fully seated in the wall-mount bracket shelf. requirements. Use an appropriately sized washer for each of the screws. Provided in the accessory kit IQ System Controller 3/3G Quick Install Guide... -
Page 15: Step 3: Open The Dead Front
Philips screw #2 The ground connection to the dead front needs to be carefully disconnected before the dead front can be dismantled from the IQ System Controller. IQ System Controller 3/3G Quick Install Guide... -
Page 16: Section B
Mounting the breakers Internal view of IQ System Controller 3/3G The following figure shows the IQ System Controller 3/3G after the dead front is removed. It comes with an inbuilt neutral forming transformer, microgrid interconnection device, automatic transfer switch, and a panel board to mount plug-in type breakers. -
Page 17: Wiring For Service Entrance
Suitable for use as Service Equipment Main/Service Disconnect Suitable for use as Service Equipment Label If the IQ System Controller is NOT used as a service entrance equipment: • Remove the system bonding jumper wire Magnified view IQ System Controller 3/3G Quick Install Guide... -
Page 18: Install Main And Backup Breakers
Eaton’s installation manual for screw recommendation Torx - T20 Torx - T20 13.3 lb.in 13.3 lb.in Screw part of Screw part of Eaton breakerkit Eaton breaker kit IQ System Controller 3/3G Quick Install Guide... -
Page 19: Breakers For Iq8 Systems Without Generator
Section B - Mounting the breakers Breakers for IQ8 Systems without generator The IQ System Controller 3 comes pre-installed with a quad breaker for the neutral forming transformer (NFT) and IQ Gateway. Siemens breaker The hold-down kit for the breakers is factory installed in the IQ System Controller 3. -
Page 20: Breakers For Iq8 Systems With Generator
Breakers for IQ8 Systems with generator IQ System Controller 3G allows for generator integration with the Enphase Energy Systems. The breaker on the bottom right slot of the panel board can be sized and used to integrate the generator. Siemens breaker... -
Page 21: Section C
C O N D U I T L O C AT I O N M A I N B A C K U P L O A D S D E R Bottom Left wall Right wall IQ System Controller 3/3G Quick Install Guide... -
Page 22: Der Wiring
10 - 14 14 -10 6 - 8 Neutral and ground bar – small holes 10 - 14 #10-32 UNF 4 - 6 Neutral lugs 300 kcmil - 6 " 2 - 3 IQ System Controller 3/3G Quick Install Guide... -
Page 23: Aux Wiring: System Shutdown Switch
Section C - Wiring Aux wiring: System Shutdown Switch Aux wiring 1: Enphase System Shutdown Switch wiring (compliance requirement) The IQ System Controller meets UL1741 PV RSE and NEC Rapid Shutdown requirements for IQ8 Microinverters. The System Shutdown Switch is the rapid shutdown initiator. The System Shutdown Switch ensures a single point of initiation per NEC 2020. -
Page 24: Aux Wiring: Iq Load Controller
IQ Load Controller to be installed on the site. For detailed wiring instructions, refer to the IQ Load Controller QIG. NOTE: Control lines to headers support 28 AWG and 16 AWG wire gauges. IQ System Controller 3/3G Quick Install Guide... -
Page 25: Aux Wiring: Generator Control
Section C - Wiring IQ System Controller 3G - Aux wiring: Generator control An auto-start generator can be integrated with the Enphase Energy • For 2-wire autostart generators, wire the System without the need for any external automatic transfer switch generator I/O port in IQ System Controller 3G (ATS). -
Page 26: Main/Supply Side Wiring
Neutral and ground bar – large holes 5/16"-24 UNF 10 - 14 6 - 8 Neutral and ground bar – small holes 10 - 14 #10-32 UNF Neutral lugs 300 kcmil - 6 " IQ System Controller 3/3G Quick Install Guide... -
Page 27: Backup Loads Wiring
Neutral and ground bar – large holes 5/16"-24 UNF 10 - 14 6 - 8 Neutral and ground bar – small holes 10 - 14 #10-32 UNF Neutral lugs 300 kcmil - 6 " IQ System Controller 3/3G Quick Install Guide... -
Page 28: Ct Wiring
IQ Gateway Terminal Block • Any system with generator integration AWG MIN MEAS CAT III OVC III PD, B For PCS setup, refer to the Enphase Installer App. OVC II Blue White Purple Brown Black Battery CT is placed on L2 wire from IQ Battery. -
Page 29: Wiring Control (Ctrl) Cable To Headers
CTRL cable. NOTE: The control cable required for IQ Battery 5P, IQ Combiner 5/5C and IQ System Controller 3/3G must be compliant with UL 3003, UL 1277, and UL 83 standards. Enphase has validated performance using the Enphase control cable. Enphase cannot guarantee performance when a third-party control cable is used. -
Page 30: Control (Ctrl) Wiring Between System Components
NOTE: Ensure the following guidelines are followed to avoid failures during system commissioning: • The same conduits can be used for power and control wire routing only when using an Enphase CTRL cable i.e., CTRL-SC3-NA-01. • One header with termination resistor should be installed on each component that is at the extreme end of the control network. - Page 31 Section C - Wiring Sequence 1b: IQ Combiner 5/5C → IQ System Controller 3 → IQ Battery(s) 5P (This is only applicable to IQ System Controller 3 where the third DER port can be used for additional batteries) NOTE: Total length of CTRL wiring across the system cannot exceed 250 feet to ensure the system operates as per specifications.
- Page 32 Section C - Wiring Sequence 3: IQ System Controller 3/3G → IQ Combiner 5/5C → IQ Battery(s) 5P NOTE: Total length of CTRL wiring across the system cannot exceed 250 feet to ensure the system operates as per specifications. Here is a table providing termination resistor locations for the above...
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Page 33: Close And Energize Iq System Controller
IQ Batteries. Enphase Energy System. Reconnect the dead front ground cable to the grounding Once connected to the IQ Gateway, refer to the Enphase bar. Place the dead front using the 5 reserved screws. Installer App help topics for more information. -
Page 34: Safety
Safety IMPORTANT SAFETY INSTRUCTIONS. SAVE THESE INSTRUCTIONS. This guide contains important instructions that you must follow during the installation and maintenance of the IQ System Controller 3/3G. Failing to follow any of these instructions may void the warranty (enphase.com/warranty). In Case of Fire or Other Emergency DANGER: Risk of electric shock. -
Page 35: Revision History
R E V I S I O N D AT E D E S C R I P T I O N Added “Control (CTRL) wiring between system components” section. 140-00271-04 April 2023 Editorial updates. Previous releases IQ System Controller 3/3G Quick Install Guide... - Page 36 IQSC-3G-IG-0062-04-EN-US-2023-04-28 © 2023 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and certain other marks listed at https:/ /enphase.com/trademark-usage-guidelines are trademarks of Enphase Energy, Inc. in the US and other countries. Data subject to change. IQ System Controller 3/3G Quick Install Guide...
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