enphase SC200D111C240US01 Quick Install Manual
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enphase SC200D111C240US01 Quick Install Manual

Iq system controller 3/3g
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M ODE L N UMBE RS-
S C 2 0 0 D 111C240US 01
S C 2 0 0 G 111C240US 0 1
V E R SI O N 9. 0
J U N E 2 0 24
IQ System Controller 3/3G Quick Install Guide
1

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  • Page 1 IQ System Controller 3/3G Quick Install Guide Scan the QR code to access the latest document M ODE L N UMBE RS- S C 2 0 0 D 111C240US 01 S C 2 0 0 G 111C240US 0 1 V E R SI O N 9. 0 J U N E 2 0 24 IQ System Controller 3/3G Quick Install Guide...
  • Page 2 IQ System Controller 3/3G. The Enphase IQ System Controller 3/3G supports a 240 V L-L/120 V L-N split phase supply (i.e., two phases that have a phase angle of 180 degrees). For use with grid supplies other than a split phase, an appropriate external transformer must be provided to convert the incoming supply from the utility to a split phase supply.

  • Page 3: Table Of Contents

    Table of contents Scenario 1 Section B Full Energy Independence configuration Mounting the breakers Whole home backup with IQ System Controller 3 Internal view of IQ System Controller 3/3G Wiring for service entrance Scenario 1a Install mains and backup breakers Full Energy Independence configuration Breakers for IQ8 Systems without generator Whole home backup with IQ System Controller 3G...

  • Page 4: Whole Home Backup With Iq System Controller 3

    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

    System Shutdown Switch wiring section for details. follow the details in the wiring section. Additional wiring and components are required when integrating generators. Refer to the Generator integration page for technical briefs and guides enphase.com/installers/storage/generator. IQ System Controller 3/3G Quick Install Guide...

  • Page 6: Scenario 2

    Scenario 2 Partial home backup with IQ System Controller 3 This is the preferred configuration for partial home backup with PV and IQ Batteries. The microinverter ranges supported in this configuration are IQ8, IQ7, IQ6, or M Series. Check for Compatibility. Wi-Fi/Ethernet &...

  • Page 7: Scenario 2A

    System Shutdown Switch wiring section for details. follow the details in the wiring section. Additional wiring and components are required when integrating generators. Refer to the Generator integration page for technical briefs and guides enphase.com/installers/storage/generator. IQ System Controller 3/3G Quick Install Guide...

  • Page 8: Scenario 3

    Scenario 3 Partial home backup with Sunlight Backup This is the preferred configuration for partial home backup using only IQ8 PV, i.e., Sunlight Backup. IQ Battery can be integrated with IQ System Controller 3 based on the homeowner’s needs. It is recommended that installers use two IQ Load Controllers for load control to ensure seamless backup of essential loads using IQ8 Microinverters.

  • Page 9: Scenario 3A

    System Shutdown Switch wiring section for details. follow the details in the wiring section. Additional wiring and components are required when integrating generators. Refer to the Generator integration page for technical briefs and guides enphase.com/installers/storage/generator. IQ System Controller 3/3G Quick Install Guide...

  • Page 10: Compatibility

    Compatibility Applicable for whole home backup and partial home backup (scenarios 1 and 2 ) with IQ Battery 5P B AT T E R Y C T ( C T- C O N S U M P T I O N C T L O A D C O M M S - 2 0 0- S P L I T O R...
  • Page 11 Compatibility Applicable for whole home backup and partial home backup (scenarios 1a and 2a) C O N S U M P T I O N C T B AT T E R Y C T ( C T- G E N E R ATO R C T C O M M S - ( C T- 2 0 0 - S P L I T S Y S T E M...
  • Page 12 Compatibility Applicable for Sunlight Backup (scenario 3) C O N S U M P T I O N C T ( C T- 200 - S P L I T S Y S T E M C O M B I N E R / C O M M S K I T 2 M I C R O I N V E R T E R L O A D C O N T R O L L E R...

  • Page 13: Specifications

    200 A Maximum overcurrent protection device rating for generator circuit 80 A (IQ SC 3G only - SC200G111C240US01) 2x 80 A (IQ SC3 - SC200D111C240US01), Maximum overcurrent protection device rating for storage circuit 1x 80 A (IQ SC3G - SC200G111C240US01 )

  • Page 14: Mechanical Specifications

    Mechanical specifications D E S C R I P T I O N VA L U E Dimensions (WxHxD) 50 cm x 91.6 cm x 24.6 cm (19.7 in x 36 in x 9.7 in) Weight 39.4 kg (87 lb) Normal operation temperature range -40°C to 50°C (-40°F to 122°F) Maximum altitude...

  • Page 15: What's In The Box

    What’s in the box IQ System Controller 3/3G Wall-mounting bracket System Shutdown Switch Comes pre-wired with 4 x 20 ft. color-coded wires. Accessory kit I T E M N A M E I T E M C AT E G O R Y D E S C R I P T I O N Q U A N T I T Y Filler Cover Mounting BKT-L 200G Enpower...

  • Page 16: Tools/Additional Items Required

    Distribution/Enphase Store** * Additional two current transformers (CTs) are required with IQ System Controller 3G (generator support) ** Enphase SKU for control cable: CTRL-SC3-NA-01 WARNING: Do not use power tools for electrical connections. IQ System Controller 3/3G Quick Install Guide...

  • Page 17: Section A

    Section A Mounting the product Plan a location for the IQ System Controller • IQ System Controller is NEMA type 3R rated and can be mounted indoors and outdoors. Install the unit where it is not exposed to direct rainfall. •...

  • Page 18: Mounting The Product

    Section A - Mounting the product Step 1: Minimum clearance This product must be installed with clearance at the left, right, top, bottom, and front of the product, as shown in the figure. Follow all local standards and regulations related to mounting an IQ System Controller.

  • Page 19: Step 2: Install The Mounting Bracket

    Section A - Mounting the product Step 2: Install the mounting bracket Install the mounting bracket and mount the IQ System Controller • The IQ System Controller weighs 39.4 kg (87 lb) and will as per the following instructions: require two people to lift the unit. •...

  • Page 20: Step 3: Open The Dead Front

    Section A - Mounting the product Step 3: Remove the door • Pinch the lock pin on the top hinge section. • Lift the door upside down to remove it. WARNING: Equipment damage if a recommended practice is not followed. Risk of equipment damage.

  • Page 21: Section B

    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. Hold-down kit Load center for Main lugs...

  • Page 22: Mounting The Breakers

    Section B - Mounting the breakers Wiring for service entrance If the IQ System Controller is used as service entrance equipment: • Do not remove the green-colored system bonding jumper. Grounding Electrode Terminal • Paste labels provided in the accessory kit. Grounding Electrode Terminal Label Magnified view...

  • Page 23: Install Mains And Backup Breakers

    Section B - Mounting the breakers Install mains and backup breakers If breakers are being installed for mains and backup connections, E N P H A S E B R E A K E R S K U E ATO N B R E A K E R PA R T the lugs should be removed, and the breakers should be installed.

  • Page 24: 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. The hold-down kit for the breakers is factory-installed in the IQ System Controller 3. Loosen the screw (use Phillips head screwdriver #1) and pull the hold-down kit arm up to install the breakers.

  • Page 25: Breakers For Iq8 Systems With Generator

    Section B - Mounting the breakers 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.
  • Page 26 Section B - Mounting the breakers Breaker for NFT and IQ Gateway The IQ System Controller 3 comes pre-installed with a quad breaker (Siemens or Eaton) for the neutral forming transformer (NFT) and IQ Gateway. Siemens breaker NFT pre-wired to 40 A terminal of the quad breaker. Connect IQ Gateway L1 and L2 to the 20 A L1 and L2 terminals of the quad breaker, respectively.

  • Page 27: Section C

    Section C Wiring Drill conduits Drill conduit entry holes as needed and install conduit grounding lugs for each opening. Be sure to reseal unused conduit entry holes with sealing plugs. Mains supply conductors should enter the IQ System Controller from the bottom or bottom-left side. Backup load conductors should enter the IQ System Controller from the bottom or bottom-right side.

  • Page 28: Der Wiring

    Section C - Wiring DER wiring Connect the DER (IQ Battery, IQ Combiner/Solar, and generator) wires to the lugs at the bottom, as indicated in the following images. Refer to the wiring table and torque recommendation before connecting the wires. Refer to local codes for any specific local requirements. IQ System Controller 3: IQ System Controller 3G: additional IQ Battery...

  • Page 29: Aux Wiring: System Shutdown Switch

    Section C - Wiring Aux wiring: System Shutdown Switch Enphase System Shutdown (SSD) 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 30 Section C - Wiring Aux wiring: System Shutdown Switch NOTE: An improved SSD header kit allows for the co-location of SSD wiring and AC power conductors in a single conduit, eliminating the need for separate conduits. WARNING: To prevent water ingress, do not use the top conduit entry on System Shutdown Switch.
  • Page 31 Section C - Wiring Aux wiring: System Shutdown Switch IQ System Controller 3/3G units may get stuck in a System Shutdown or rapid shutdown state, preventing system provisioning. Either follow the wiring tests for the SSD switch in the ON position or the wiring tests for the SSD switch in the OFF position. Wiring test for SSD switch in the ON position Ensure the SSD Switch is in the ON position.
  • Page 32 Section C - Wiring Aux wiring: System Shutdown Switch Wiring test for SSD Switch in the OFF position Ensure the SSD Switch is in the OFF position. Ensure the IQ System Controller is powered ON from any of the sources. Set the multimeter to measure DC voltage.

  • Page 33: Aux Wiring: Iq Load Controller

    Section C - Wiring Aux wiring: IQ Load Controller Up to two IQ Load Controllers, each enabling fine-grained, circuit-level control for 2x 240 V or 4x 120 V essential load circuits, can be integrated with the IQ System Controller. Each 240 V load can be controlled independently, but the 120 V loads can be controlled in groups of up to two loads.
  • Page 34 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 35: Mains/Supply Side Wiring

    Section C - Wiring Mains/supply side wiring The mains wiring is the final step in the installation process. The wiring is similar for both whole home and partial home ba ckup. When using Eaton CSR mains breaker 300 kcmil-14 AWG 300 kcmil-2 AWG 1/0-14 AWG 1/4"...

  • Page 36: Backup Loads Wiring

    Section C - Wiring Backup loads wiring 300 kcmil-14 AWG 300 kcmil-2 AWG 1/0-14 AWG 1/4" AW G TO R Q U E ( L B . I N ) 300 kcmil-2 300 kcmil-14 AWG 300 kcmil-6 AWG 1/0-14 AWG 3/8"...
  • Page 37 The configuration is applicable for a storage breaker position not connected to an IQ Battery on the IQ System Controller 3. The IQ System Controller 3 is capable of supporting a total backup loads below 64A by utilizing the empty storage breaker slots on the load center. Wi-Fi/Ethernet &...
  • Page 38 The configuration is applicable for a storage or generator breaker position not connected to an IQ Battery or a generator on the IQ System Controller 3G. The IQ System Controller 3G is capable of supporting a total backup loads below 64A by utilizing the empty storage/generator breaker slots on the load center. Wi-Fi/Ethernet &...

  • Page 39: Ct Wiring

    Section C - Wiring CT wiring There are multiple scenarios for CT wiring. Refer to CT wiring scenarios. For more description, refer to the IQ Gateway Quick Install Guide. For PCS setup, refer to the PCS section. Place the Consumption CTs as shown for: •...
  • Page 40 Section C - Wiring CT wiring scenarios Scenario 1: CT wiring for IQ Battery on both IQ Battery and DER ports (IQ System Controller 3 only) Power IQ Gateway from 20 A terminals of the quad breaker at NFT and IQ Gateway position. Main (NFT pre-wired to 40 A terminals of the quad breaker).
  • Page 41 Section C - Wiring Scenario 1: CT wiring for IQ Battery on both IQ Battery and DER ports (IQ System Controller 3 only) Battery CT will be placed on the L2 wire from the IQ Battery port and the DER port. L2 of IQ Battery and DER port shall be paralleled using one Battery CT.
  • Page 42 Section C - Wiring Scenario 2: CT wiring for IQ Battery on IQ Battery port and Generator on DER port (IQ System Controller 3G only) Power IQ Gateway from 20 A terminals of the Quad breaker at NFT and IQ Gateway position. (NFT pre-wired to 40 A terminals Main of the Quad breaker).

  • Page 43: Wiring Control (Ctrl) Cable To Headers

    IQ Combiner 5/5C, and IQ System Controller 3/3G must be compliant with UL 3003, UL 1277, and UL 83 standards. The Enphase control cable (SKU: CTRL-SC3-NA-01) with optimal impedance to ensure control communication has been validated for optimal system performance. Third-party cables may not have the correct characteristic impedance and consequently may not work for reliable control communication.

  • Page 44: Control (Ctrl) Wiring Between System Components

    • 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. NOTE: Ensure the following guidelines are followed to avoid failures during system commissioning: •...
  • Page 45 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. WARNING: The drain wire should only be terminated on one end of the control wiring between the system components.
  • Page 46 Section C - Wiring Sequence 3: IQ System Controller 3/3G → IQ Combiner 5/5C → IQ Battery(s) 5P NOTE: The total length of CTRL wiring across the system cannot exceed 250 feet to ensure the system operates as per specifications. WARNING: The drain wire should only be terminated on one end of the control wiring between the system components to prevent ground loops.

  • Page 47: Section D

    Backfeed allowed = ((120% of busbar rating) - Ampacity of the overcurrent protection device protecting the busbar)/125%. Battery import-only mode for Enphase Energy System: This feature ensures the IQ Battery 5P never exports any power to the grid. This applies regardless of the configured battery smart profile, i.e., self-consumption, full backup, or savings (time of use) with optimization.

  • Page 48: Setting Up Pcs On-Site During Commissioning

    Section D - PCS Setting up PCS on-site during commissioning Ensure the availability of the following Enphase products as required on-site to implement PCS. P R O D U C T S K U IQ System Controller 3/3G SC200D111C240US01, SC200G111C240US01...
  • Page 49 The label is provided as part of the IQ System Controller Literature kit. CT LABEL Recommended area to affix: On the CTs Use the site configurations section in the Enphase Installer App to define the PCS settings for the site. IQ System Controller 3/3G Quick Install Guide...

  • Page 50: Close And Energize Iq System Controller

    If you plan to commission the system, follow the instructions ensure that the DC switches on all IQ Batteries are turned in the Enphase Installer App to provision and energize the off to avoid the depletion of charge on the IQ Batteries.

  • Page 51: Safety

    DANGER: Risk of electric shock. Risk of fire. Do not attempt to repair the IQ System Controller. Tampering with or opening the IQ System Controller NOTE: During use, storage, and transport, keep the IQ System Controller: will void the warranty. If the IQ System Controller fails, contact Enphase • Properly ventilated Support for assistance at enphase.com/support.

  • Page 52: Addendum A: Wire Sizes And Tightening Torque

    Addendum A: Wire sizes and tightening torque T I G H T E N I N G TO R Q U E W I R E S I Z E W I R E   M I N I M U M C I R C U I T W I R E T Y P E ( N * M / I N * L B S )

  • Page 53: Revision History

    Revision history R E V I S I O N D AT E D E S C R I P T I O N • UL compliance related changes. 140-00271-09 June 2024 • Updated the “Backup loads wiring” section. 140-00271-08 December 2023 •...
  • Page 54 IQSC-3G-QIG-140-00271-09-EN-US-2024-06-04 © 2024 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and certain other marks listed at enphase.com/trademark-usage-guidelines are trademarks of Enphase Energy, Inc. in the U.S. and other countries. Data subject to change. IQ System Controller 3/3G Quick Install Guide...

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