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sol-ark 15K-2P-N Installation Manual And User's Manual

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INSTALLATION GUIDE
AND USER MANUAL
Sol-Ark 15K-2P-N
RESIDENTIAL
NORTH AMERICA

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Summary of Contents for sol-ark 15K-2P-N

  • Page 1 INSTALLATION GUIDE AND USER MANUAL Sol-Ark 15K-2P-N RESIDENTIAL NORTH AMERICA...
  • Page 2 Copyright 2025 Sol-Ark LLC | SK140-0001-004 ©...
  • Page 3 By using the product, users acknowledge their understanding of these disclaimers and agree to use the product at their own risk. Sol-Ark reserves the right to update or modify product information, specifications, and guidelines without prior notice.

  • Page 4: Table Of Contents

    2.8 Integrating Sensors and Accessories ..................................20 2.9 Limit Sensors (CT sensors) ......................................24 2.10 Emergency Stop and Rapid Shutdown ..................................26 2.11 Powering-up and Testing the Sol-Ark ..................................28 2.12 Power Cycle Sequence ....................................... 29 3. User Interface ..........................30 3.1 LED Indicators ..........................................
  • Page 5 15K Installation Guide | SK140-0001-004...

  • Page 7: Important Safety Instructions

    Warnings Read this entire document before installing or using the Sol-Ark 15K-2P-N inverter. Failure to follow any of the instructions or warnings in this document can result in electrical shock, serious injury, or death. Damage to the 15K-2P-N inverter is also possible, potentially rendering it inoperable.

  • Page 8: Before You Start

    Lead Acid battery types, including but not limited to Flooded Lead Acid [FLA], Gel, and AGM battery types, often require specific charging methods or work best in certain conditions. The Sol-Ark inverter may not meet such requirements, or it may require modification to the Sol-Ark’s charging and discharging parameters.

  • Page 9: Sol-Ark: At A First Glance

    The box should include all items shown in the component guide. If there is damage or missing parts, immediately call the phone number (USA) +1 (972) 575-8875 Ext. 2. COMPONENT GUIDE The Sol-Ark 15K-2P-N system includes the following components: Component Description...
  • Page 10 3x MPPT inputs Parallel RJ45 ports (90A) GEN terminal BMS RJ45 ports (RS485 / CAN) (200A) LOAD terminal (200A) LOAD breaker (200A) GRID terminal Wi-Fi / Ethernet dongle GROUND / NEUTRAL Busbars ON / OFF Button Copyright © 2025 Sol-Ark LLC...

  • Page 11: Specifications

    1.2 Specifications Temperature derating AC: 75°C – 82°C. Shutdown @82°C 15K Installation Guide | SK140-0001-004...
  • Page 12 PV Arc Fault Detection — NEC 690.11 Integrated PV Input Lightning Protection Integrated PV String Input Reverse Polarity Protection Integrated Copyright © 2025 Sol-Ark LLC AC Output Breaker - 200A Integrated Surge Protection DC Type II / AC Type II...

  • Page 13: Connection Requirements

    1.3 Connection Requirements 1. Sol-Ark 15K-2P-N Torque Values for Terminals Do not use impact drivers to tighten any fasteners on the Sol-Ark Terminal / Breaker Torque [in-lb] Torque [Nm] “LOAD” 165 in-lb 18.6 Nm “GRID” 165 in-lb 18.6 Nm “GEN”...
  • Page 14 [10 mm] 1 in 5/8 in [25.4 mm] [16 mm] 1/4 in [6.35 mm] 4/0 AWG max 4/0 AWG max 10 AWG max 23 AWG max CT Sensors (Included) “ [35 mm] 10 ft [3 m] Copyright © 2025 Sol-Ark LLC...

  • Page 15: Installation

    "GRID" terminal. • An external disconnect must be installed between the interconnection and the Sol-Ark. Size the disconnect according to code. • Connect the "LOAD" output to the Essential Loads Panel. Follow electric code to select proper wire gauge.

  • Page 16: Mounting The Sol-Ark

    National Electrical Code®, paragraph 110.26 and Canadian Electrical Code® CSA C22.1 are adhered to. • The Sol-Ark 15K-2P-N is a NEMA 3R - IP65 enclosure that is rated for outdoor installation but can also be installed indoors. •...
  • Page 17 • Mount the inverter in the optimal orientation as shown below. 15K Installation Guide | SK140-0001-004...

  • Page 18: Integrating Batteries

    C. Battery breakers must be OFF when wiring. If your battery bank does not have internal breakers, maintain the necessary safety measures when handling. The 15K-2P-N reaches a max battery charge/discharge of 275A if using both sets of battery terminals. If only one set of terminals is used, the max battery charge/discharge will be limited to 160A Sol-Ark 15K-2P-N is a 48V nominal system.
  • Page 19 Multi-Terminal Installation The two battery input terminals of the 15K-2P-N will parallel batteries internally to ensure a common connection between battery banks and simplify battery installations. If a charge / discharge rate of 275A is needed, the batteries must be connected to both input terminals.
  • Page 20 Ah @48V # of batteries Voltage per Battery Ah per battery Max Charge / Discharge (A) (Chain of 4 batteries of 12V in series) 230Ah 230Ah 100A 230Ah 460Ah 200A 230Ah 690Ah 275A 230Ah 920Ah 275A Copyright © 2025 Sol-Ark LLC...

  • Page 21: Battery Communication

    2.3 Battery Communication RJ-45 Configurations The Sol-Ark 15K-2P-N inverter achieves battery communications through a single RJ-45 port labeled “Battery CANBus”. This port combines the RS-485 and CANBus pin configurations shown below. Both “Modbus RS485” and “Battery CANBus” ports are capable of Modbus communication.

  • Page 22: Connecting Pv Modules

    E.M.P Systems Only – Suppressor Installation If you purchased your system with Lightning / EMP Hardening, most of the protection is within the Sol-Ark. However, additional EMP suppressors are included to protect home appliances and solar panels. The Sol-Ark 15K-2P-N includes: •...
  • Page 23 AC Coupling The Sol-Ark 15K-2P-N is a system that supports the addition of AC coupled solar panels. The max solar input power can be expanded by coupling micro or string inverters into the “GEN” or “LOAD” terminals. A full AC coupled solar system is not recommended as power control and monitoring is limited.

  • Page 24: Integrating A Generator

    00 | 00 min in the "Generator Exercise Cycle Day & Time" option. Improve the Generator & Sol-Ark Compatibility Navigate through the menus and program the following settings to improve the Sol-Ark and generator compatibility and operating range to avoid frequent disconnections.

  • Page 25: Grid Peak Shaving

    “A” is how many amps (DC) are supplied to the battery from a generator. Adjusting and limiting the GEN or GRID “A” value will ensure that small generators are not overloaded when charging the battery bank. If connecting more than one Sol-Ark in parallel, multiply the Gen or Grid “A”...

  • Page 26: Integrating Sensors And Accessories

    Secure with tape and place away from the battery terminals to prevent overheating. • This sensor has no polarity. The temperature sensor helps perform voltage charging adjustments and capacity calculations due to changes in temperature. • Lithium Batteries DO NOT require our external temperature sensor. Temperature sensor Copyright © 2025 Sol-Ark LLC...
  • Page 27 Wi-Fi dongle (antenna) BMS Port (CAN/RS485) • This port is used to set up a Lithium Battery in closed-loop communication with the Sol-Ark 15K-2P-N. (See the Battery Communications Integration Guide on the Sol-Ark website at www.sol-ark.com/battery-partners). • You must use an RJ45 connector.
  • Page 28 D. 1 medium black filter ring for the grid port (outside diameter 59mm) Install Filter Rings A Pass the BMS 485/CAN communication line through filter ring A and wrap it four times. Pass the Meter-485 communication wires through filter ring A and wrap them around four times. Copyright © 2025 Sol-Ark LLC...
  • Page 29 Install Filter Rings B For each of the three filter rings B: wrap the wires around it twice, then thread the end of the wires through the filter ring. Do this for each of the components below. • Batt _ Temp _ in (1,2), CT_L1_in (3,4), CT_L2_in (5,6): Wrap these wires around one filter ring B. •...

  • Page 30: Limit Sensors (Ct Sensors)

    The CT sensors (or limit sensors) enhance system capabilities by enabling the use of the system work modes known as “Limited Power to Home” (Meter Zero) and “Grid Peak-Shaving”. The CTs will measure and calculate total load demand which the Sol-Ark 15K-2P-N will then use to accurately supply and offset all existing loads (Meter Zero).
  • Page 31 • Only one pair of CT sensors must be wired to the designated “Master” inverter. • CT sensors are essential for multi-Sol-Ark systems as “Limited Power to Home” mode is highly recommended. CT Sensors for 120V/208V Three-Phase • Install CT1 on L1 and CT2 on L2 of inverter 1. Program inverter 1 to Master, Phase A.

  • Page 32: Emergency Stop And Rapid Shutdown

    The (B, B) emergency stop pins of the Sol-Ark 15K-2P-N are an ordinarily open contact that triggers rapid shutdown (RSD) when closed. RSD will cut all power, including the Sol-Ark’s internal power supply and stop all AC outputs. The internal 12Vdc (-3%) power supply of the Sol-Ark (pins 15 &...
  • Page 33 Option 2: RSD transmitter draws greater than 100mA If a transmitter is equal to or more than the maximum 100mA limit, it can still be integrated into the Sol-Ark inverter through an external power supply connected to the “LOAD” output.

  • Page 34: Powering-Up And Testing The Sol-Ark

    Do not ground PV+ or PV-. Verify polarity in each PV string. Backward polarity will measure 0Vdc by the Sol-Ark and will cause long term damage. PV alone turns LCD screen only. Inverter requires grid and/or batteries to operate, otherwise an “OFF” message will appear.

  • Page 35: Power Cycle Sequence

    TURN OFF the battery breakers. Wait a moment (~1 min) to ensure the inverter is completely de-energized. Make sure that the Sol-Ark is properly connected to the batteries, solar panels, “GRID”, “GEN”, and “LOAD”. Reverse the steps to turn ON the Sol-Ark.

  • Page 36: User Interface

    Normal Alarm Green Green Green → DC Solar Panels connected → Grid is connected → Sol-Ark is fully energized* → Alarm state. Check the alarms menu. and providing voltage. and providing voltage. and inverting power. Home Screen→ → “System Alarms”...

  • Page 37: Main Menus

    3.2 Main Menus Main Screen Hold 4 s to force Smart PV power generation graph Grid usage graph Loads Settings Details Screen Solar power production Grid power Load power Battery power Sell (-) / Buy (+) consumption Charge (-) / Discharge (+) 15K Installation Guide | SK140-0001-004...
  • Page 38 • Battery temperature will measure 25°C by default if the battery sensor is not connected. • DC Temp: Sol-Ark 15K-2P-N does not have internal DC temperature sensors. Temperature reading can be ignored. • AC Temp: Internal AC conversion side temperature.
  • Page 39 System Setup Menu Information provided by the BMS (3,4) 15K Installation Guide | SK140-0001-004...

  • Page 40: Basic Setup

    UPS Time: Backup transfer time to essential loads upon grid disconnection. Default value of 5ms. Factory reset Restrictions: Changes to these settings must be previously authorized by Sol-Ark technical support agents. Parallel Parallel: Enables communications between parallel inverters. “Master” and “Slave” inverters must be programmed.

  • Page 41: Battery Setup

    Refer to section 2.12 for power cycle instructions. BMS Lithium Batt: Allows closed-loop communication with our tested batteries included in our “Battery Integration Guide”. Refer to www.sol-ark.com/battery-partners for complete list of compatible batteries. Activate Battery: This option MUST be selected if the system has batteries, especially Lithium batteries.
  • Page 42 Disable and press OK to disengage. The generator will not provide power during this test if grid power is available. The gen must be in automatic mode if applicable and must have a two-wire start (dry-contact, normally open) connected to the Sol-Ark.
  • Page 43 To use the “GEN” terminal as an AC coupling input for micro inverters or string inverters, enable " �� For AC Coupled Input to Gen”. In off-grid systems, the Sol-Ark will use frequency shifting to control the AC coupled solution based on the battery SOC. The meaning of “Smart Load OFF Batt” and “Smart Load ON Batt” will change in this mode.

  • Page 44: Limiter

    3.5 Limiter The Sol-Ark 15K-2P-N inverter will simultaneously utilize different available power sources to satisfy load demand in the electrical service panels (essential loads panel / main service panel). The following work modes let you determine how generated power is utilized.
  • Page 45 Limited Power to Home + Grid Sell: This mode will NOT limit solar production to home demand. In this mode, the inverter delivers power to the “LOAD” terminal (essential loads panel) + excess power to the “GRID” terminal (main service panel AND grid). The Sol-Ark will monitor grid sell and load consumption simultaneously (with +/ - 3% error from CT sensors).
  • Page 46 “GRID” loads cannot be measured, only the total output through the “GRID” terminal. This mode is recommended for single inverter systems or for whole-home backup installations. Limited Power to Load + Grid Sell Copyright © 2025 Sol-Ark LLC...
  • Page 47 Default and recommended option. Sets the solar power priority of the system to charge batteries first. Do NOT change unless instructed by Sol-Ark technical support. Load First: Sets the solar power priority of the system to cover loads demand first and deliver remaining power to batteries.

  • Page 48: Grid Setup

    Output V: Tap and use navigation arrows to cycle through different nominal grid voltage levels. Grid level must be selected according to nominal grid voltage. Ouput V+: Allows fine voltage modifications to the Output V to ensure proper nominal voltage. Copyright © 2025 Sol-Ark LLC...
  • Page 49 LF1/LF2/LF3: Under frequency protection point. F(W) F(W): Enables the use of Frequency-Watt. The Sol-Ark regulates its power output to the grid as a function of the frequency to support grid stabilization during over and under-frequency conditions. Droop F: Percentage of inverter’s nominal power increase / decrease per Hert (Hz).

  • Page 50: Installation Tips

    DO NOT check the "Parallel" box in systems with multiple inverters and no battery bank. Settings: → Basic Setup → Parallel Tab→ Parallel Tap the battery Icon to access the “Details Screen” and verify grid parameters and power import / export. Copyright © 2025 Sol-Ark LLC...

  • Page 51: Battery Charge Controller

    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.

  • Page 52: Grid Compliance Settings

    57.50Hz 108.0V 57.50Hz HECO Grid Compliance Verification for Sol-Ark In cases where HECO compliance requirements are mandated, it’s essential to program the following grid parameters according to the HECO specifications. Follow the next GUI screens, program the settings, and verify alignment with HECO compliance.

  • Page 53: Parallel Systems

    Tech Support for assistance: support@sol-ark.com Parallel systems REQUIRE a joint battery bank. If you do not have a battery, keep all Sol-Ark inverters OUT of parallel and set every System to “Grid Sell” Mode. D. All INPUTS/OUTPUTS must be shared among ALL parallel inverters, except for DC solar inputs.
  • Page 54 Parallel Systems Sol-Ark 15K-2P-N @ 120/240V Split-Phase Continuous output power Max. Grid Continuous output power Peak power 10 sec # of inverters in parallel with batteries (kW) Passthrough Current with PV (kW) (kVA) 1000 1200 1400 1600 1800 2000 2200...

  • Page 55: Parallel Systems Programming Sequence

    Parallel setup tab Parallel Configuration (Example on a 3 Phase System-Balanced). Phase A-B-C A 3-Phase balanced system requires at least 3 Sol-Ark Units. Programming and wiring should follow the graphics below. A B | A B B C | B C...
  • Page 56 A B | A B A B | A B A B | A B 2 inverters @ 120/208V using 3 phases of 3 (Unbalanced) A B | A B B C | B C Copyright © 2025 Sol-Ark LLC...

  • Page 57: Three-Phase Systems

    Troubleshooting Guide with Phase Sequence If the screen of the Sol-Ark inverter shows the error shown below, ensure the phase sequence follows AB-BC-CA convention. The message “Grid Phase Wrong” is displayed when the inverter does not detect the correct phase sequence. This situation can cause overloads faults in the system (F18, F26, F34) even with the “LOAD”...
  • Page 58 If an inverter goes into a fault state, all other units will stop and follow. The system will automatically self-reboot. If the system faults 5 consecutive times, it will stop completely and it will require a manual restart. See section “2.12 Power Cycle Sequence” on page 29 for detailed instructions. Copyright © 2025 Sol-Ark LLC...

  • Page 59: Mysolark: Remote Monitoring

    Insert the ethernet cable through the plastic enclosure and connect the cable to the RJ45 port. C. Reassemble the dongle housing and plug the dongle into the Sol-Ark, securing it with screws. You will see solid red and green lights after a couple of minutes.
  • Page 60 A. Download and install the “MySolArk” app for android or apple smartphones. QR codes are provided below. Google Play Store MySolArk Apple App Store Create a MySolArk account and log in. Sign Up E-mail & verification Code Login Copyright © 2025 Sol-Ark LLC...
  • Page 61 C. Create the Plant. For Installers: Installers are advised to first create the plant and configure the system before sharing it with the owner. After creating and configuring the plant, the installer can share and grant manager permissions to the owner by navigating to “My Plants”...
  • Page 62 Step 2: Configure Wi-Fi network though MySolArk Configure Wi-Fi network. Turn inverter ON Accept conditions Connection Password to power dongle E4A0## E4A0## EAP- EAP- Connect Confirm Wi-Fi network E4A0 EAP- EAP- Copyright © 2025 Sol-Ark LLC...
  • Page 63 Note: The Wi-Fi configuration tool can be accessed at any other time by tapping “Me” at the bottom right corner, then “Tools” and finally “Wi-Fi configuration”. STEP 3 shows an alternative method of connecting the Wi-Fi dongle to a local network through an IP address.
  • Page 64 Internet browser IP address b) Wi-Fi network scan If the connection is successful, you will see the following LED indicators. SOLID: Connected and powered by the Sol-Ark inverter. SOLID: Connected to the router and to MySolArk. INTERMITTENT : Connected to the router but not to the server (usually a VPN or Firewall problem).

  • Page 65: Led Indicator And Troubleshooting

    6.2 LED Indicator and troubleshooting When both the red and green LEDs on the Wi-Fi dongle are consistently illuminated, it signifies normal operation, while flashing indicates data transmission. If this isn't the case, reference the next table of LED indications for troubleshooting and corrective measures. LED: Device communication indicator.

  • Page 66: Wiring Diagrams

    7. Wiring Diagrams The following diagrams are general use cases. Installers are reminded that adherence to local electrical codes and regulations is mandatory. While these diagrams offer general guidance, they may not encompass all variations and specifics required by local codes. Consult with relevant authorities and ensure compliance before proceeding with any installation.

  • Page 78: Troubleshooting Guide

    • Verify Neutral wire connection (0Vac referenced to GND) • Check the programmed frequency, and verify the Sol-Ark measures 120V between L and N • If the system is overloading, verify that proper phase sequence between “GRID” and “LOAD” terminals...
  • Page 79 The Batt SOC% is not reaching 100% • The Sol-Ark might be in the calibration phase and estimating the battery SOC. We suggest waiting three full days to let the unit go through the 4-stage charging curve to converge to an accurate percentage •...

  • Page 80: Sol-Ark Error Codes

    20%, or Lithium BMS has shut down. If battery settings are incorrect, this can also happen. Sol-Ark is programmed to BMS Lithium Battery Mode but cannot communicate with a BMS. BMS_Communication Fault BMS_Err_Stop is enabled, but cannot communicate with a battery BMS Gen_Volt_or_Fre_Fault Generator Voltage or Frequency went outside the allowable range.

  • Page 81: Warranty Verification Checklist

    13. For Off-Grid systems: The mode “General Standard” is programmed and the V & f ranges are increased  14. When “�� Grid Sell” is enabled, the Sol-Ark sells power back to the grid (negative HM measurements for L1, L2) ...
  • Page 82 Any other event not foreseeable by Sol-Ark LLC Sol-Ark LLC liability for any defective Product, or any Product part, shall be limited to the repair or replacement of the Product, at Sol-Ark LLC discretion. Sol-Ark LLC does not warrant or guarantee workmanship performed by any person or firm installing its Products. This warranty does not cover the costs of installation, removal, shipping (except as described below), or reinstallation of Products or parts of Products.

  • Page 83: Gui Screens

    10. GUI Screens Main Menu Basic Setup 15K Installation Guide | SK140-0001-004...

  • Page 84: Copyright © 2025 Sol-Ark Llc | Sk140-0001-004

    Batt Setup Limiter Copyright 2025 Sol-Ark LLC | SK140-0001-004 ©...
  • Page 85 Grid Setup 15K Installation Guide | SK140-0001-004...
  • Page 86 Copyright 2025 Sol-Ark LLC | SK140-0001-004 ©...

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