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Fox ESS US Series Quick Installation Manual

Energy storage system
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US Series Energy Storage System
Quick Installation Guide
Issue: V1.8a
Date: 2024-11-19
FOXESS CO., LTD.

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Summary of Contents for Fox ESS US Series

  • Page 1 US Series Energy Storage System Quick Installation Guide Issue: V1.8a Date: 2024-11-19 FOXESS CO., LTD.
  • Page 2 Notice Notice 1. The information in this document may not be modified, copied or reproduced, in whole or in part, without the prior written permission of FOXESS CO., LTD. All informa- tion in this document is provided to the best of our knowl- edge and efforts, but does not constitute a warranty of any kind, express or implied.
  • Page 3 1.2 FOX Hub G2 Package Box FOX Hub G2 Inverter Bracket SUITABLE FOR USE AS SERVICE EQUIPMENT ONLY The mounting bracket for the demonstration is aligned with IN USA WHEN EQUIPPED the inverter mounting bracket. WITH MAIN BREAKER SERVICE DISCONNECT FOX Hub G2 10-200-21212-00 DESC...
  • Page 4 Quick Installation Guide DESC DESC Expansion Tube & Set Screw Expansion Screw Fixing Bracket Waterproof Cover Footstand RJ45 Communication Cable Junction Box (BMS-inverter) (9.8ft) Grounding Cable (9.8ft) Plug DC Output Cable (9.8ft) Cable Gland Quick Installation Guide For CS : Quick Installation Guide...
  • Page 5 Required Tools Insulating Safety Dust Mask Helmet Steel Toe Gloves Goggles Boots Phillips-Head Flat-Head Wire Stripper Electric Drill Adjustable Screwdriver Wrench Screwdriver Hole Punch Level Tape Sleeve Hex Wrench Phone Multimeter DANGER: Special care must be taken to protect personal safety. PPE must be worn during transfer and installation.

  • Page 6: Installation Steps

    Installation Steps 3.1 Installation Environment Shelter Shelter Shelter 3.2 System Installation Space FOX Hub G2 FOX Inverter#1 FOX Inverter#2 FOX Inverter#N(≤4) Recommended Recommended Recommended 12in.(300mm) 12in.(300mm) 12in.(300mm) 8in.(200mm) 8in.(200mm) 8in.(200mm) Recommended Recommended Recommended 10.3in.(260mm) 10.3in.(260mm) 10.3in.(260mm) Recommended 41in.(1040mm) Battery Battery Battery 33in.(840mm) 7 Layers...
  • Page 7 Notice Steps ② ③ ① 65-70mm Deep Φ8mm ⑤ ④ 3.4 FOX Hub G2 Installation ① ② FOX Hub G2 45-50mm Inve rter Bra cke t The mou ntin Deep g bra cke t for dem ons trat ion is alig ned the inve rter with mou ntin g bra...

  • Page 8: Battery Installation

    Suggestion: the height difference between the highest installation holes of the FOX Hub G2 and the highest installation holes of the inverter bracket is 3.5in. (89.3mm). Installation Holes of the FOX Hub G2 Inverter Bracket 13.5in. 16in. 3.5in. 5.2in. 19.3in. 3.5 Battery Installation ②...
  • Page 9 The FOX Hub G2 may not come with the capability to connect to smart ② circuit and generator. Please refer to the checkmarks on the shipping mark of the FOX Hub G2. If "smart circuit" or "generator" is checked, the FOX Hub G2 comes with the corresponding functions.
  • Page 10 Whole-home Backup (AC Couple) Main Power Cable Communication Cable Auxiliary Power Cable (Optional) Standby GEN CT (in Solar CT(in Solar PV Panel Generator FOX Hub G2) FOX Hub G2) Inverter Smart Loads (Optional) Load Grid FOX Hub G2 Main Panel Backup Loads Utility Grid CT Utility...
  • Page 11 4.2 Partial-home Backup Partial-home Backup (DC Couple) (FOX Hub G2 as Service Panel) Main Power Cable Communication Cable Auxiliary Power Cable Standby GEN CT Generator (in FOX Hub G2) Smart Loads (Optional) (Optional) Load Grid Utility Backup Loads Grid CT Subpanel Utility Meter...
  • Page 12 Partial-home Backup (DC Couple) (FOX Hub G2 not as Service Panel) Main Power Cable Communication Cable Auxiliary Power Cable Standby GEN CT (in Generator FOX Hub G2) Smart Loads (Optional) (Optional) Load Grid Subpanel Backup Utility Main Panel Utility Grid CT Loads Meter (in Main...
  • Page 13 Partial-home Backup (AC Couple) (FOX Hub G2 as Service Panel) Main Power Cable Communication Cable Auxiliary Power Cable Smart Loads (Optional) PV Panel Solar Solar CT (in FOX Inverter Hub G2) Load Grid Utility Backup Loads Subpanel Utility Grid CT(in Meter FOX Hub G2) FOX Hub G2...
  • Page 14 Partial-home Backup (AC Couple) (FOX Hub G2 not as Service Panel) Main Power Cable Communication Cable Auxiliary Power Cable PV Panel Solar Solar CT Smart Loads (Optional) Inverter (in FOX Hub G2) Load Grid Subpanel Backup Utility Utility Main Panel Grid CT Loads Meter...
  • Page 15 System Wiring Steps 5.1 FOX Hub G2 Overview Terminal Blocks Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator Smart Circuit Terminals (Optional) Grid Relay Existing Solar Terminal FOX Inverter Terminal Standby Backup Load Generator Terminal Terminal (Optional) Non-backup Load Terminal Ground Neutral Bar Kit...
  • Page 16 5.2 Is the FOX Hub G2 Installed as Service Panel? ① When the FOX Hub G2 is used as the service panel, a. main breaker and line side barriers (Eaton TICSR300C) need to be installed; Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator...
  • Page 17 ② When the FOX Hub G2 is not used as the service panel, bonding jumper needs to be removed. Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator Remove ③ Recommended Breaker Models Circuit Compatitable Breaker CH230, CH235, CH240, CH245, CH250, CH260, CH270, CH280, CHF230, CHF235, CHF240, CHF245, CHF250, BR230, Smart Circuit BR240, BR250, BR260, BR270, BR280, BR290, BRH230,...
  • Page 18 ④ NEC 2023 Requirement of Current rating: 1. 705.12 (b)(1): bus bar rating shall not less than main breaker rating + breaker of other power source (125% of power source output). 2. 705.12 (b)(2): only two power sources: primary power source is located on opposite end of other power source. bus bar rating x 120% shall not less than main breaker rating + breaker of another power source (125% of power source output).
  • Page 19 5.3.2 The FOX Inverter Connections to the FOX Hub G2 (One FOX Inverter) Inverter 3/4’’ 6 AWG 3/4’’ 6 AWG 3/4’’ 6 AWG 3/4’’ 6 AWG FOX Hub G2 Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator...
  • Page 20 5.3.3 The FOX Inverter Connections to the FOX Hub G2 (2 to 4 FOX Inverters) FOX Hub G2 Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator Combiner Panel (Prepared by Customer) 1.4N.m L2 L1 L2 L1 L2 L1 L2 L1 Inverter #1 Inverter #2...
  • Page 21 No. of Parellel Inverters Wire Gauge (Combiner Panel—Inverter) 2 Inverters 6 AWG 3 Inverters 6 AWG 6 AWG 4 Inverters 5.3.4 Backup Loads Connections to the FOX Hub G2 FOX Hub G2 Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator 3/4’’...
  • Page 22 5.3.5 Non-backup Loads Connections to the FOX Hub G2 FOX Hub G2 Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator 3/4’’ 6 AWG - 250 kcmil 3/4’’ 6 AWG - 250 kcmil 3/4’’ 6 AWG - 250 kcmil 3/4’’...
  • Page 23 5.3.6 The Grid AC Power Connections to the FOX Hub G2 3/4’’ 3/4’’ 6 AWG - 4/0 AWG 6 AWG - 250 kcmil 3/4’’ 3/4’’ 6 AWG - 4/0 AWG 6 AWG - 250 kcmil 3/4’’ 3/4’’ 6 AWG - 4/0 AWG 6 AWG - 250 kcmil 3/4’’...
  • Page 24 5.3.7 The Existing Solar Inverter Connections to the FOX Hub G2 or main panel (Optional) FOX Hub G2 Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator 3/4’’ 6 AWG - 1/0 AWG 3/4’’ 6 AWG - 1/0 AWG 3/4’’...
  • Page 25 5.3.8 The Smart Loads Connections to the FOX Hub G2 (Optional) 3/4’’ 3/4’’ 6 AWG - 2/0 AWG 6 AWG - 1/0 AWG 3/4’’ 3/4’’ 6 AWG - 2/0 AWG 6 AWG - 1/0 AWG FOX Hub G2 FOX Hub G2 Solar CT Grid CTs Solar CT...
  • Page 26 5.3.9 The Standby Generator Connections to the FOX Hub G2 (Optional) FOX Hub G2 Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator 3/4’’ 6 AWG - 250 kcmil 3/4’’ 6 AWG - 250 kcmil 3/4’’ 6 AWG - 250 kcmil 3/4’’...
  • Page 27 5.4 Inverter Power Cable Wiring 5.4.1 The Battery Connections to the Inverter Inverter BAT+ BAT- 1A+ 1A- 1B+ 1B- 2+ 2- 3+ 3- Battery 3/16’’ 6 AWG 3/16’’ 6 AWG 3/16’’ 10 AWG...
  • Page 28 5.4.2 The PV Panels Connections to the Inverter Turn off the DC switch before connection. Inverter 1A+ 1A- 1B+ 1B- 2+ 2- 3+ 3- BAT+ BAT- 3/16’’ 10 AWG 3/16’’ 10 AWG PV Panels If there are ≤ 3 PV strings, 3 PV strings are preferentially connected to terminals 1A+, 1A-, 2+, 2-, 3+, 3-.
  • Page 29 12V GND A1 B1 H1 L1 COM-OUT Hub-Power FOX Hub G2 12V GND A1 B1 H1 L1 COM-OUT COM-IN Hub-Power FOX Inverter #1 A1 B1 H1 L1 COM-OUT COM-IN FOX Inverter #2 A1 B1 H1 L1 A1 B1 H1 L1 COM-OUT COM-IN FOX Inverter #3...
  • Page 30 NOTE: ① In the last inverter in the communication chain, plug the 4-pin P5 socket with two terminating 120Ω resistors. ② The twisted cables use shielded twisted pair with drain wire. ③ The maximum cable lengths between FOX Hub G2 and FOX Invert- er #1, between FOX inverters, and between the battery and FOX inverter are 50m, 5m, and 50m, respectively .
  • Page 31 NOTE: If the generator is connected to the FOX hub G2, the system needs to include batteries. 5.5.2.2 Control Type: Dry Contact ① Dry contact normally open generator Generator 24-16 AWG If a TRANSFER signal exists COM2 GND TRAN TRANRES Generator Generator P9 remains...
  • Page 32 Dry contact normally closed generator ② Generator 24-16 AWG If a TRANSFER signal exists COM2 GND TRAN TRANRES Generator Generator P9 remains unconnected. Solar CT Grid CTs Hub-Power COM-OUT COM-IN E-STOP Generator Generator FOX Hub G2 If the generator’s battery needs our system to charge it, ③...
  • Page 33 Providing 240 VAC Generator Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator FOX Hub G2...
  • Page 34 5.6 CT Wiring Solar CT Wiring (Only for AC Couple) · Solar CT Solar Inverter FOX Hub G2 Main Panel I* I Solar CT Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator FOX Hub G2...

  • Page 35: Standby Generator

    · GEN CTs Wiring (Optional) GEN CTs Standby Generator FOX Hub G2 White Blue White Blue Solar CT Grid CTs Hub-Power COM-OUT E-STOP Generator Generator COM-IN FOX Hub G2...
  • Page 36 Grid CTs Wiring · Grid CTs Utility FOX Hub G2 Main Panel I1* I1 I2* I2 Grid CTs Solar CT Grid CTs E-STOP Generator Generator Hub-Power COM-IN COM-OUT FOX Hub G2...
  • Page 37 5.7 Battery Communication Wiring Inverter Communication Cable Battery...
  • Page 38 5.8 E-STOP Wiring E-STOP FOX Hub G2 Solar CT Grid CTs Hub-Power COM-IN COM-OUT E-STOP Generator Generator E-STOP GND E-STOP Step 1: remove the jumper on the P6 socket of the FOX Hub G2. Step 2: connect the pins 1 and 2 of the P6 to the E-STOP. WARNING: Do not remove the jumper on the P6 socket of the FOX inverter.

  • Page 39: System Turn On

    LAN Installation: insert the network cable into the Smart WiLAN, and · connect the Smart WiLAN to the FOX Hub G2. FOX Hub G2 System Turn on Please refer to the following steps to switch on the system. 1. Ensure all cables are connected properly. 2.
  • Page 40 Commissioning Step 1: Search for FoxCloud US and download the app. Or, scan the QR code to download the app. After the APP is installed, the FoxCloud US icon is displayed on the home screen. FoxCloud US Step 2: , and tap “Wifi Configuration”.
  • Page 41 Step 3: Scan the QR code on the Smart WiLAN, or enter the SN code, and then tap “confirm”. Input the house router WiFi’s information. Light indication on the Smart WiLAN Indicator Status Instructions Blinking Not connected to the server Red light Connected to the server Solid on...
  • Page 42 Step 5: The installers sign in to bind the end user’s inverter. Scan the QR code or manually enter the inverter SN on the right side of FOX Hub G2 or either FOX inverter. Step 6: Check system performance via the end user’s account.
  • Page 43 Step 7: Use the checklist below to make sure the necessary items are com- pleted. Status Item Necessary or Optional (√ if completed) 1. Time Zone Necessary 2. Energy Mode Necessary Optional 3. Parallel Inverter (Only needed when the number of inverters >1) 4.
  • Page 44 Item 1: Set up the time zone via Item 2: Configure the energy the end user’s account. management mode via the end user’s account. Item 3: Set the number of parallel inverters via the installer’s account. ② ③ ④ Select Hub ①...
  • Page 45 Item 4: Set the zero back-feed via the installer’s account. ② Select Hub ③ ① Item 5: Set the grid code of each inverter via the installer’s account. ② ③ ④ Select “Shutdown” ⑤ Select your own country ①...
  • Page 46 Item 6: Set the time plan of the smart loads via the installer or end user’s account. • The installer’s account ② Select Hub ① • The end user’s account...
  • Page 47 Item 7: Set the solar inverter power via the installer’s account (Existing inverter only). ② ③ Select Hub ① Item 8: Set the charge by grid value via the installer’s account. ② ③ Select Hub ① ④ V1.7 10-203-00277-07...

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