sol-ark 8K-2P-L Installation Manual
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sol-ark 8K-2P-L Installation Manual

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RESIDENTIAL
INSTALLATION GUIDE
USER MANUAL
February 7, 2023
1

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Summary of Contents for sol-ark 8K-2P-L

  • Page 1 RESIDENTIAL INSTALLATION GUIDE USER MANUAL February 7, 2023...
  • Page 2 STOP READ THE INSTRUCTIONS COMPLETELY BEFORE OPERATING THE EQUIPMENT. Check the grid type before turning ON the unit. Turn ON and program the unit using only batteries. The unit will be programmed in 120/240V Split phase at a Frequency of 60Hz, by default.

  • Page 3: Table Of Contents

    SOL-ARK 8K – Installation guide & manual DISCLAIMER ................................4 WARNING SYMBOLS .............................. 5 UPON RECEIVING SHIPMENT ..........................6 WIRE GAUGE GUIDE (COPPER) ..........................9 WIRING DIAGRAMS ............................. 10 GUI SCREENS ................................ 18 PHYSICAL INSTALLATION ............................. 21 ..............................21 NVERTER COMPONENTS .................................

  • Page 4: Disclaimer

    Use of such information shall be entirely at the user’s risk. Sol-Ark is not responsible for system failure, damage or injury resulting from improper installation of its products. Information in this manual is subject to change without notice.

  • Page 5: Warning Symbols

    Solar PV+/PV- are UNGROUNDED. Note, you may ground PV Racking/Mounts, but doing so directly to the Sol-Ark will likely result in damage in the case of a direct lightning strike to the PV array. DO NOT connect the grid to the Load Output Terminal Block.

  • Page 6: Upon Receiving Shipment

    A. The box should include all items shown in the component guide. B. If there are damages or missing parts, call immediately (USA) 972-575-8875 Ext. 2 Components guide. Object Description 8K-2P-L inverter Expansion plugs for concrete M8x80mm CAT 5E communication cable Allen key...
  • Page 7 February 7, 2023...
  • Page 8 Terminal “Load” 1.2 NM Terminal “Grid” 1.2 NM Terminal “Gen” 1.2 NM Neutral / Ground (busbar) 1.2 NM Cover Screws 3 NM Battery Connection 10 NM Do not use impact drivers to tighten any fasteners on the Sol-Ark. February 7, 2023...

  • Page 9: Wire Gauge Guide (Copper)

    Wire Gauge Guide (copper) * AC Input/Outputs : GRID-Breaker 50A MAX -> 50A passthrough , 6 AWG conductor. LOAD-Breaker 50A MAX -> 50A passthrough , 6 AWG conductor. *It is possible to use 10AWG conductors if using the inverter for grid sell only. *Wire gauge should be selected in compliance with your local electrical code.

  • Page 10: Wiring Diagrams

    Wiring Diagrams These Wiring Diagrams are examples of common use-cases for Sol-Ark inverters. Sol-Ark does not provide custom diagrams; however, you may contact support@sol-ark.com for any questions about existing Wiring Diagrams. Diagram 1 February 7, 2023...
  • Page 11 Diagram 2 Diagram 3 February 7, 2023...
  • Page 12 Diagram 4 February 7, 2023...
  • Page 13 Diagram 5 Diagram 6 February 7, 2023...
  • Page 14 Diagram 7 February 7, 2023...
  • Page 15 Diagram 8 February 7, 2023...
  • Page 16 Diagram 9 February 7, 2023...
  • Page 17 Diagram 10 February 7, 2023...

  • Page 18: Gui Screens

    GUI Screens Main Menus Basic Setup February 7, 2023...
  • Page 19 Battery Setup Limiter February 7, 2023...
  • Page 20 Grid Setup (All the values shown on this manual are meant for illustration purposes. If you do not know the appropriate setting, contact technical support). February 7, 2023...

  • Page 21: Physical Installation

    Physical installation Inverter components Table 1. Sol-Ark 8K-2P-L parts identification. Element Element PV disconnect WI-FI Dongle LCD screen Sensor input board Battery terminals (+|-) RJ45 port (Parallel A/Parallel B) RJ45 port (BMS) GRID terminal MPPT inputs GEN terminal (PV1+/PV1-) (PV2+/PV2-)

  • Page 22: Backup Circuits

    B. PROTECT LCD screen from direct exposure to UV light. C. Mount the Sol-Ark following figure (1.2), ensure Sol-Ark is level and sits properly. D. System weight= 32kg Securely attach to the wall. You may need expansion plugs-anchors for concrete. In case a different anchorage is required, it must be calculated to support the weight of the equipment.
  • Page 23 Figure (1.2) Wall mount. A. Use 2 to 4 screws + washers (choose screw length and surface type) to mount the French cleat. B. Mount the inverter in the correct position as shown in Figure (1.3). Figura (1.3) Orientación del equipo February 7, 2023...

  • Page 24: Integrating Batteries (Sol -Ark 8K-2P-Lmust Be Off)

    All inverters in a parallel system MUST connect to a single battery bank, otherwise the inverters will not function properly. b. Do not use separate battery banks in parallel systems. Sol-Ark 8K-2P-L is a 48v nominal system. Do not connect the inverter to any other battery configuration.
  • Page 25 Grounding connection: It is essential to add a grounding connection directly into the frame, with the goal of protecting the end user in case if experiencing a failure from the original ground conductor. NOTE When system installed off-grid scenarios, the neutral must be connected to ground.

  • Page 26: Integrating A Generator

    Low=220V”. Voltages in the “Normal Connect” section are L-N. Sol-Ark will not charge the batteries using the generator unless the “Start V” or “Start %” condition is fulfilled. The start condition either V or % will light up in white depending on which control mode is selected under “Battery Setup” → “Use Batt V Charged”...
  • Page 27 This is how many amps (DC) you can push into the battery from generator power. To ensure you do not overload a small generator, you will want to adjust the GEN or GRID Start A value. If connecting more than one Sol-Ark in parallel, multiply the GEN or GRID Start A value by the # of Sol-Arks for actual current value into the battery bank.

  • Page 28: Integrating Sensors And Accessories

    If “TOU” (Time Of Use) is enabled, it is necessary to select “Charge” to kick on the generator. BMS Port (CAN/RS485) • It is used to connect the battery in closed loop communication with the Sol-Ark 8k-2P-L (review our “Battery Communications Integration Guide” on the Sol-Ark website at www.Sol-Ark.com/support). •...

  • Page 29: Powering-Up And Testing The Sol-Ark

    1. “TURN ON” the external battery disconnect. 2. Make sure that Sol-Ark 12k-3P-L is properly connected to the batteries, solar panels, grid, etc. 3. “TURN ON” the external disconnect switch that feeds the GRID terminals and “ URN ON” the external GRID breaker that feeds the GRID terminal.
  • Page 30 A. Turn “ON” the Battery switch located on the battery module or pack (if using a lithium battery). B. Turn “ON” the external Battery disconnect (if you have one). C. The voltage applied to the Sol-Ark battery terminals must be between 43V - 60V Provide Power to Sol-Ark 8k-2P-L A.

  • Page 31: Wi-Fi / Internet Connection

    B. Insert the ethernet cable through the plastic enclosure and connect the cable to the RJ45 port as shown in the Figure (7.2). C. Reassemble the dongle housing and plug the dongle into Sol-Ark as shown in the Figure (7.2), secure it with screws. You will see solid red and green lights after a couple of minutes.

  • Page 32: Ip Address Setup (Pc Or Smart Phone)

    IP address setup (PC or smart phone) Connect to the Dongle Network A. On your Smart Phone or Computer go to: Settings → Wi-Fi → Select the EAP-XXXXX network → Password= 12345678 (Dongle network does not provide internet, it is just a communication bridge between your device and the dongle).
  • Page 33 “Login” to Web Portal using ANY Search Browser A. Once your device is connected to the dongle, open any browser (Safari, Google, Chrome, etc.) B. On the address bar (http://..), type the following IP address: 10.10.10.1 as shown in the Figure (7.6). If you can’t access the configuration page, try again with a computer.
  • Page 34 Click on SAVE to save your information as shown in the Figure (7.8). NOTE: If successful you should see a red and green light on the dongle showing a solid connection, Figure (7.9). LED: Connected to Sol-Ark and has power. GREEN LED: Connected to router and server. Figure (7.8) Save information...
  • Page 35 App for Smart Phone (PV Pro). iPhone: (PV Pro) Android Figure (7.10) IOS app Figure (7.11) Android app Installers It is recommended that the installer creates the plant and share it later with MANAGER permission to the owner of the system. Once created, the installer or the homeowner can share the plant and assign Manager permissions on “My Plants”...
  • Page 36 Create an Account and Sign In Type your E-mail and After filling the form, click Password to SIGN IN. SIGN UP. Add a Plant Scan the QR code or type manually the S/N and KEY. Select (…), then click CREATE PLANT. On Plant Type, always select Energy Storage (DC Coupling).
  • Page 37 If Wi-Fi paired with IP Address (10.10.10.1 method) – select DONE. Remote Monitoring On PV Pro (PowerView)-( https://pv.inteless.com Energy Attention Generation. If you are installing parallel systems, DO NOT create a plant for each inverter. Create one plant for the Master unit.
  • Page 38 It takes about 60 sec for the lights to turn on (red and established. green lights) after setup. LED: Connected to Sol-Ark and has power. GREEN LED: Connected to Internet and Server. FLASHING GREEN LED: Connected to router but not into the server (usually a VPN or Firewall issue).

  • Page 39: Programming Guide

    Programming Guide February 7, 2023...

  • Page 40: Main Screen (Touchscreen)

    Main Screen (Touchscreen) Hold 4 sec to force Settings Grid usage graph Smart Loads PV power Detailed generation voltage screen graph DC solar power production Battery power Grid power Load power Sell (-) / Buy (+) consumption Charge (-) / Discharge (+) Figure (8.1) Main screen Detailed voltage screen •...
  • Page 41 • AC Temp = Temperature of AC conversion side. o Batt → AC o PV → AC • Note: Opposite values in “Grid” or “HM” “GRID” Column = power in the grid. indicate incorrectly installed CT sensors. o If selling to the Grid, Watts = negative (-) o If buying from the Grid, Watts = positive (+) o HM = power detected by the external current sensors.

  • Page 42: Basic Setup

    LOAD terminal of the Sol-Ark. The default value is always the maximum output of the inverter production. Grid Peak Shaving: Sets the Sol-Ark's threshold to begin contributing power from batteries to keep the power drawn from the grid below that value. Auto detect home Limit Sensor: Command that helps to detect the correct polarity from the CTs sensors.

  • Page 43: System Alarms

    Parallel Parallel Enable whenever you have more than one system connected – one unit needs to be set as a “Master”, the second one as a “Slave”, and so forth. MODBUS SN : Identification number for each system configured in Figure (9.3) Parallel setup parallel (1,2,3,4,n).
  • Page 44 Charge Float V : Voltage that the system maintains in the batteries once they are fully charged. Absorption V : Voltage that the system uses to charge the batteries. • Absorption will stop at 2% of the capacity of the battery bank and then drop to float.
  • Page 45 Batt Resistance : Internal resistance in mOhms from the battery bank. Used in % SOC batt calculations. Batt Charge Efficiency : Value provided by battery manufacturer. Used in % SOC batt calculations. Batt Empty V : Sets the empty voltage, associates a voltage to 0% charge. This value determines the lowest % SOC limit. Smart Load - (GEN terminal) A.
  • Page 46 3. The loads shown by the system will be the addition of the main service panel + critical loads panel. 4. This system work mode is MANDATORY with parallel Sol-Ark systems – allows an optimal power distribution between the inverters.
  • Page 47 The 6-time intervals MUST follow a chronological order. Power(W): This is the maximum discharge power (adjustable in Watts) the Sol-Ark will draw from the battery during the time intervals. Batt: Voltage or percentage battery state-of-charge at which the system stops using the batteries.

  • Page 48: Grid Setup

    Other GEN Connect to Grid Input: Enable this option if you have a generator wired up into the “GRID” terminal. Zero Export Power: Minimum power imported from the grid having loads connected, this option will avoid the sell back to the grid from the inverter if there is not a permit to sell back or net metering agreement, it can be set between 1 –...
  • Page 49 Connect Normal connect: Protect parameters for the grid, this can only be used with “General Standard”. The voltages shown in this menu correspond to L-N voltage (the maximum difference grid voltage value is +/- 10V). Reconnect: Protect parameters for the grid after a grid disconnect.

  • Page 50: Limiter Sensors (Ct Sensors)

    “GRID” terminal. CT Ratio Set the CT ratio. The Sol-Ark CT ratio is 2000/1. DO NOT change this value or you will lose the warranty for the inverter. Parallel systems 120V/240V Split phase •...

  • Page 51: Automatic Ct's Limit Sensors Configuration

    Automatic CT’s Limit Sensors Configuration “Auto detect Home Limit Sensors” This option requires batteries, AC coupled inverters need to be OFF during the detection test. If this test is done with connected AC-coupled systems, you will need to do a factory reset. Install the CT sensors as described in “Wiring Diagrams”...

  • Page 52: Installation Tips

    “Gen” terminal. C. When off-grid, there is no need for a transfer switch. Connect the load output of the Sol-Ark to the whole home. D. Do not use “Grid Sell” mode Off-Grid. Only Limited power to load (default) in systems with only 1 inverter, and Limited Power to Home with paralleled in E.

  • Page 53: Batteries

    Figure (12.1) Charge controller curve Absorption Stage When the battery has reached the absorption voltage setpoint, the Sol-Ark inverter uses constant-voltage regulation to maintain battery voltage at the absorption setpoint, preventing overheating and excessive battery gassing. The battery is allowed to come to a full state of charge at the absorption voltage setpoint. Absorption lasts until batteries charge at 98% of the programmed Ah size.
  • Page 54 Sol-Ark PCC-230 (AGM) Examples of TOU (Time Of Use) Batt Capacity: 230Ah x #Parallel_Batteries Table (1) TOU Example (1 parallel = 4 Batt in series, 2 = 8 Batt, 3 = 12 Batt, 4 =16 Batt) Time Watts Charge Sell...

  • Page 55: Note For Battery Communication With Modbus/Canbus

    Modbus map available upon request for reading operations only (contact technical support). RJ45 configurations: RS485 PORT CAN PORT RS485 Meter_CON CANH CANL RS485A RS485B Figura 13.1 RJ45 port configuration. Battery integration guide can be found in: www.sol-ark.com/support/ February 7, 2023...

  • Page 56: Parallel Systems

    D. Parallel systems REQUIRE a joint battery bank. If you do not have a battery, keep all Sol-Ark's out of parallel and set Figura 13.1 Pantalla de Ajustes every System to Grid Sell Mode. E. All INPUTS/OUTPUTS must be shared among all inverters, Figure (13.1) Firmware Version...
  • Page 57 Parallel systems Sol-Ark 8K-2P-L @ 120V/240V outputs # of inverters in Continuous Continuous Grid Peak power 5 parallel output power output power “Pass hrough” with PV (kW) with batteries (KVA) (kW) Parallel systems Sol-Ark 8K-2P-L @ 120V/208V 3Phase # of inverters in...
  • Page 58 Parallel configuration ( ). Phase A-B-C Example on a 3 phase System-Balanced A 3 phase balanced system required 3 units at least, as it is shown in Figure (13.2), each inverter will be in charge if a phase. Figure (13.2) 3 Phase configuration. In 3 phase systems we can use 2 phases out of 3 in case of not receiving a balanced System see pg.

  • Page 59: Phase Configuration In Parallel Systems

    3 Phase configuration in parallel systems 1 inverter @120V/208V 3 phase 2 inverters @ 120V/208V 3 phase using 2 phases out of 3 using 2 phases out of 3 Figure (13.3) 3 phase programming Figura (13.4) 3 phase programming 2 inverters @ 120V/208V 3 phase using 3 phases out of 3 Figure (13.5) 3 phase programming February 7, 2023...

  • Page 60: Troubleshooting Guide With Phase Sequence

    Troubleshooting guide with phase sequence. If the screen of your Sol-Ark inverter shows the error shown in Figure (13.6), ensure the phase sequence follows A-B-C convention. The message “Grid Phase Wrong” is displayed when the inverter does not detect the correct phase rotation.

  • Page 61: Troubleshooting Guide

    • Check to make sure your generator is compatible with Auto Start • Make sure that the Auto Gen Start wire is adequately connected to the Sol-Ark 8K and the generator Normal LED isn't on • Sol-Ark 8K is in pass-through-only mode, only a Grid connection.
  • Page 62 System is beeping • Check the System Alarms menu to see which alarm has been triggered. Most alarms will self-reset. • There is no battery connected. If not using a battery, select “No Battery” and disable “Activate Batt” in Batt menu.

  • Page 63: Sol -Ark 8K-2P-Lerror Codes

    Sol-Ark 8K-2P-L error codes February 7, 2023...

  • Page 64: Install Verification Checklist

    A. Battery icon screen, showing a table of detailed voltages. This checklist must be filled out B. Sol-Ark 8K with batteries and the user wiring area and submitted to register your 5. Load and solar test warranty. Please visit: A.

  • Page 65: Limited Warranty: Sol-Ark 8K-2P-L

    This warranty applies to the original Sol-Ark Product purchaser and is transferable only if the Product remains installed in the original use location. Please call Sol-Ark to let us know if you are selling your Home and give us name and contact of the new owner.

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