EcoFlow PowerOcean DC Fit Installation Guide

Introduction

This document provides the installation guide for the EcoFlow PowerOcean DC Fit. For the latest documentation, please scan the QR code or visit: https://enterprise.ecoflow.com/eu/documentation.

WICHTIG/IMPORTANT

• Read and follow the Installation Guide and Safety Instructions before assembling, operating, and maintaining the equipment.
• Images in this guide are for demonstration purposes only.

Safety Precautions

Safety Symbol Definitions:

• DANGER: Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.
• WARNING: Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.
• CAUTION: Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.
• NOTICE: Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury.

General Safety Instructions:

• DANGER: Do not work with power on during installation or maintenance.
• Personnel who plan to install, maintain, or perform electrical operations on the equipment must receive thorough training and be familiar with all necessary safety precautions and instructions.
• Personnel who plan to perform special operations should have the necessary local or national qualifications for tasks such as high-voltage operations, working at heights, and so on.
• Wear suitable personal protective equipment (PPE) for all professional or skilled work on the equipment.
• When the photovoltaic (PV) array is exposed to light, it supplies direct current voltage to the power conversion equipment (PCE).
• Do not touch the exposed electrical cable with bare hands.

System Components Diagram:

The EcoFlow PowerOcean DC Fit system includes:

• PV Storage Converter
• Battery Pack (expandable to 3 batteries)
• Battery Pack Base
• Adjustable Feet

Preparing Tools and Instruments

ESSENTIAL CABLES & CONNECTORS:

• Grounding cable (4 mm² copper conductor)
• Solar extension cable (4 mm² - 6 mm²)
• Shielded network cable (Cat 5e or higher)
• RJ45 connectors (Cat 5e or higher)
• Twisted pair cable (2*0.5 mm²)

ESSENTIAL TOOLS:

• Measuring tape
• Hammer drill (ø8 mm)
• Electrical screwdriver
• Torque socket (10 mm)
• Screwdriver (PH3)
• Mallet
• Wire stripper
• Crimping tool
• RJ45 crimping tool
• Cable cutter
• Marker
• Multimeter (DC voltage measurement range ≥ 1000V DC)
• Voltage pen
• Wrench (14 mm)
• Network cable tester
• Heat-shrink tubing
• Heat gun

PERSONAL PROTECTIVE EQUIPMENT AND OTHER OPTIONAL TOOLS:

• Safety goggles
• Safety shoes
• Safety gloves
• Dust mask
• Vacuum cleaner
• Step ladder

Package Inspection

NOTICE: Check if the deliverables are intact and complete. If any item is missing or damaged, contact the supplier. Retain the original packaging and documentation for further needs.

ECOFLOW POWEROCEAN PV STORAGE CONVERTER:

• A1 x1: EcoFlow PowerOcean PV Storage Converter
• A2 x1: Smart meter
• A3 x2: Solar connector spanner
• A4 x12: Solar connector (+)
• A5 x12: Solar connector (-)
• A6 x1: METER port connector (RS485)
• A7 x1: WAN port connector (Ethernet)
• A8 x4: Screws (M5*12)
• A9 x2: OT terminal & Grounding screw (M5*12)
• A10 x2: Screws (M5*12)

ECOFLOW POWEROCEAN LFP BATTERY PACK:

• B1 x1: EcoFlow PowerOcean LFP Battery
• B2 x2: Battery T-shaped / L-shaped mounting piece
• B3 x8: Screws (M5*12)

ECOFLOW POWEROCEAN LFP BATTERY BASE:

• C1 x1: Battery base
• C2 x4: Adjustable feet
• C3 x2: Expansion bolt (M6*60)
• C4 x1: Marking-off template

ECOFLOW Y-BRANCH SOLAR CONNECTOR:

• D x2

Installation Environment

WARNING: The installation and use environment must meet relevant international, national, and local standards for lithium batteries, and be in accordance with local laws and regulations.

NOTICE:

• When installing the equipment in a garage, keep it away from the driveway.
• The mounting structure where the equipment is installed must be fire resistant.
• Do not install the equipment on flammable building materials.
• Ensure that the installation surface is solid enough to bear the weight of the equipment.

Environmental Requirements:

• AVOID DIRECT SUNLIGHT, RAIN, OR SNOW
• WELL-VENTILATED AREA
• VERTICAL POSITION (87°~93°)
• AVOID UNEVEN GROUND
• AVOID DIRECT HEAT DISSIPATION TO INVERTER
• AVOID UNSTABLE SURFACES
• AVOID PIPES AND CABLES
• IP65
• ALTITUDE: ≤3000 m
• HUMIDITY: 4%-100% RH
• TEMPERATURE: -20°C~50°C
• DISTANCE FROM THE SEA: >500 m

Areas to Keep Away From:

• Solvent
• Gasoline
• Heat source
• Moisture
• Explosive material
• Flammable material
• Infrared radiation

NOT INTENDED FOR MOBILE SCENARIOS

NOT INTENDED FOR IMPORTANT DEVICES

Installation Space

WARNING: Reserve enough clearance around equipment to ensure sufficient space for installation and heat dissipation.

NOTICE: Reserve enough space on both sides of the equipment to facilitate the locking operation of the screws.

Required Clearances:

• Side clearance: ≥300 mm
• Top clearance: ≥300 mm
• Bottom clearance: ≥300 mm
• Front clearance: ≥300 mm
• Wall mounting bracket height: 65-85 mm

Dimensions:

• Height: 683 mm
• Width: 679 mm
• Depth: 201 mm

System Installation

DANGER: When drilling screw holes, avoid the water pipes and power cables buried in the wall and under the floor.

CAUTION: When moving heavy equipment, assign enough personnel (two or more). When moving the battery pack, hold the handles on top of it.

NOTICE: Install the provided adjustable feet to level the battery base if needed.

Installing Battery Base

Without adjustable feet:

1. Attach component C1 (Battery base) to the wall.
2. Drill pilot holes (ø8 mm) at the marked positions, ensuring a depth of 60-70 mm.
3. Insert expansion bolts (C3 x2) into the pilot holes.
4. Secure the battery base using screws (C4 x1) and a torque of 5.0 N-m.

With adjustable feet:

1. Attach component C1 (Battery base) to the wall.
2. Install adjustable feet (C2 x4) into the base.
3. Drill pilot holes (ø8 mm) at the marked positions, ensuring a depth of 60-70 mm.
4. Insert expansion bolts (C3 x2) into the pilot holes.
5. Secure the battery base using screws (C4 x1) and a torque of 5.0 N-m. Adjust the feet to level the base.

Installing Battery Pack

1. Prepare the battery pack (B1 x1) and mounting pieces (B2 x2).
2. Attach the mounting pieces to the battery pack.
3. Secure the mounting pieces to the battery pack using screws (B3 x4) with a torque of 1.3 N-m.
4. Connect the battery pack to the battery base.
5. Secure the battery pack to the base using screws (B3 x8) and torque specifications: 5.0 N-m for the lower screws and 2.5 N-m for the upper screws.

Installing PV Storage Converter

1. Mount the PV Storage Converter (A1) onto the battery base or wall.
2. Secure the converter using screws (A8 x4) with a torque of 1.3 N-m.

Installing Protective Earthing Conductor

DANGER: Grounding terminals should be fully connected.

1. Prepare the PE cable (4 mm² copper conductor). Strip the cable ends to expose the core (L = L1 + 3 mm).
2. Slide heat-shrink tubing over the cable.
3. Attach an OT terminal to the cable end using a crimping tool.
4. Use a heat gun to shrink the tubing over the terminal.
5. Connect the prepared PE cable to the PE busbar on the EcoFlow PowerOcean DC Fit using screws (A9 x2) with a torque of 1.3 N-m.

Electrical Connection

EcoFlow PowerOcean PV Storage Converter

BATTERY SWITCH:

• ON: EcoFlow PowerOcean DC Fit stores excess electricity generated by solar panels and supplies it to the home load when solar power is insufficient.
• OFF-BYPASS: EcoFlow PowerOcean DC Fit does not function as a power storage or backup unit. Electricity produced by solar panels goes directly to a solar inverter through the converter.

Wi-Fi antenna is located on the converter.

Connection Ports:

1. For solar (PV) strings connection
2. For solar (PV) inverter connection
3. For smart meter connection
4. For Ethernet connection (Optional)
5. For protective earthing (PE) conductor connection

BATTERY ON/OFF: Long press to turn on or off the EcoFlow PowerOcean DC Fit.

Cable Requirements:

• 1. PV input cable: 4 mm² - 6 mm² conductor
• 2. Inverter connection cable: 4 mm² - 6 mm² conductor
• 3. Smart meter communication cable: Twisted-pair cable 2*0.5 mm²
• 4. Ethernet cable: Cat 5e or higher shielded network cable
• 5. PE cable: 4 mm² copper conductor

Connecting to PV System

DANGER:

• Power off the solar inverter from all voltage sources (both DC and AC sides) and disconnect it from the grid.
• If the PV string has no DC breaker or isolator to shut off DC input, do not cut all PV cables at once.
• Check if all equipment, components, cables, and terminals are in good condition.
• Do not hold the leads from "PV+" and "PV-" on the solar panels at the same time. The solar panels will generate lethal high voltage when exposed to sunlight.
• All terminals must be connected in the correct polarity to prevent damage to the system or risk of electric shock. Always connect positive (+) to positive (+) and negative (-) to negative (-).
• The DC input voltage and the short-circuit current of each PV string input must not exceed Max Input Voltage and Isc PV (Absolute Maximum).
• The impedance between the positive/negative terminals of the PV strings and earth should be larger than 1MΩ. Do not connect the PV strings to earthing or grounding conductor.

WARNING: Use the solar connectors provided in the package. Do not cross-mate solar connectors of different manufacturers.

NOTICE:

• To prevent lightning damage to the converter, add a surge protection switch at the PV junction box (if applicable).
• Avoid connecting any solar panels with a risk of leakage current to the converter.
• Avoid mixing solar panels that have different electrical characteristics to one PV string input. Also, avoid connecting solar panels with different orientations or angles.
• After the solar connectors have snapped into place, always check if the connection is secure.

Procedure:

1. Check the BATTERY SWITCH status on the converter (should be OFF-BYPASS).
2. De-energize all electrical equipment. All switches connected to the existing solar power system should be OFF status. (Diagram shows DC Breaker, PV Switch, and AC Breaker in OFF position).
3. Cut existing solar cables (PV1, PV2).
4. Prepare solar connectors for the PV strings and the inverter.
5. Connect the extension cables to the PV string and the solar inverter using solar connectors (A4, A5, A3). Ensure correct polarity and strip cable ends to 15-20 mm.
6. Check the polarities of the connection cables using a multimeter. Voltage should be ≤1000V. If the multimeter displays a negative value, reverse the leads. If it displays over 1000V, remove some solar panels.
7. Connect the prepared cables to the converter's PV input terminals (PV1, PV2). Ensure correct polarity. Use the provided solar connector spanner to remove or remake connections if needed.
8. For inverters supporting single PV string input, use the EcoFlow Y-branch Solar Connector (D) for connection.
9. For inverters supporting multiple PV strings (≥ 2 strings) in one input, avoid paralleling the EcoFlow PowerOcean DC Fit with a PV string to prevent potential damage to solar panels.

Connecting Smart Meter

NOTICE: Use the smart meter provided in the package.

1. Connect the RS485 A and RS485 B wires to the smart meter terminals, stripping the cable ends to 10-15 mm.
2. Connect the other ends of the wires to the corresponding terminals on the converter.

Wiring Diagram (Smart Meter Terminals):

• Converter Side:
• Terminal 3: Load L1
• Terminal 6: Load L2
• Terminal 9: Load L3
• Terminal 10: Load N
• Terminal 24: RS485 A
• Terminal 25: RS485 B
• Smart Meter Side:
• Terminal 1: Grid L1
• Terminal 4: Grid L2
• Terminal 7: Grid L3
• Terminal 10: Grid N

Connecting to the Internet

NOTICE: Use Cat 5e or higher rating shielded network cable.

Method 1: Via a Wired Network

1. Connect one end of the network cable (A7) to the WAN port of the converter.
2. Ensure both ends of the network cable use the T568B wiring standard (straight-through cable). Strip cable ends to 10-20 mm.
3. Test the network cable connection using a cable tester. Ideal connection shows LEDs lighting up in sequence. Incorrect wiring standards or poor connections will be indicated by different LED patterns.

Method 2: Via a Wireless Network

Adjust the Wi-Fi antenna and refer to the System Commissioning section to connect the device to a wireless network.

Wiring Diagrams:

Wiring diagram (three-phase): Shows connections between PV, DC Fit, INV, RS485 A/B, Utility Meter, Breaker, Fuse, Grid, and Load. For three-phase house wiring, always adhere to this diagram, irrespective of the inverter type.

Wiring diagram (single-phase): Shows connections between PV, DC Fit, INV, RS485 A/B, Utility Meter, Breaker, Fuse, Grid, and Load. For single-phase house wiring.

Installation Review

Check the following items to ensure proper installation:

• Equipment: All equipment is installed correctly and securely.
• Cable routing: Cables are routed properly as required by the home owner.
• Cable connection: All electrical cables are connected correctly and securely.
• Grounding: The grounding terminals are connected securely.
• Switch: All switches connected to the system are in off status.
• Unused terminal and port: Unused terminals and ports are covered with watertight caps.
• Environment: The installation space is proper, and the installation environment is clean and tidy.

System Power-On

1. Turn on the existing solar power system (PV Switch, DC Breaker, AC Breaker to ON).
2. Turn the BATTERY SWITCH on the converter to the ON position and verify the third-party solar inverter is functioning properly.
• NOTICE: If the inverter is not functioning, check hardware connections, look for an "Insulation Fault" message on the inverter, and contact EcoFlow technical support if issues persist.
3. Press and hold the BATTERY ON/OFF button on the converter for about 5 seconds. Wait until the LEDs light up and then flash twice, indicating a successful system power-on.

System Power-Off

1. Shut down the EcoFlow PowerOcean DC Fit via the EcoFlow app.
2. Turn the BATTERY SWITCH on the converter to the OFF-BYPASS position.
3. Press and hold the BATTERY ON/OFF button on the converter for about 10 seconds.
4. Wait until the LEDs are completely off, indicating a successful system power-off.

LED Indicators

System Reminder:

• LED Status: Solid White (On) / Flashing White (On)
• Description: The converter is energized by a DC voltage source (PV or battery pack), but the system is not functioning or is not completely powered off. To turn on: Press and hold BATTERY ON/OFF for 5 seconds. To power off: Turn BATTERY SWITCH to OFF-BYPASS.

Discharge Status:

• LED Status: Bars indicating battery level.
• Battery Level: <5%, 5%-25%, 25%-50%, 50%-75%, 75%-100%.

Charge Status:

• LED Status: Bars indicating charge level.
• Description: 0%-25%, 25%-50%, 50%-75%, 75%-99%, 100%.

Faulty Status:

• LED Status: Various flashing patterns.
• Description: Abnormal system installation, abnormal smart meter communication, battery faulty, converter faulty, abnormal IoT communication, abnormal battery communication, abnormal converter communication.

If the LED displays a faulty status, visit the EcoFlow / EcoFlow Pro app to retrieve the error code.

System Commissioning

NOTICE: Images may vary from app versions.

1. INSTALL ECOFLOW PRO APP (FOR INSTALLER)

Scan the QR code or download at: https://download.ecoflow.com/ecoflowproapp

2. LOG IN & REGISTER

Enter the installer account and password.

3. ADD SYSTEM

Tap Add System or '+' to automatically search for Bluetooth devices nearby, and select EcoFlow PowerOcean DC Fit to bind. You can find the device serial number (S/N) on the product nameplate. If a firmware update prompt appears, follow it to upgrade the device before proceeding.

4. COMMISSIONING

After binding the device successfully, the device enters the commissioning process.

Step 1: Internet Setup

• Tap Internet setup to start network configuration.
• Via a wireless network: Select Wi-Fi, enter the wireless network name and password.
• Via a wired network: Select Ethernet to set IP mode (IPV4 only, DHCP or Static IP).

Step 2: Home Settings

Tap Home Settings to set necessary parameters like Location and Timezone.

Step 3: Device Settings

Tap Device Settings to set necessary parameters like Brand, Model, MPPT voltage, Maximum input voltage (DC), and Rated output power (DC). Ensure settings match the inverter's nameplate specifications.

Step 4: Grant User Access

Tap Grant user access to generate an accessing QR code for the home owner. The QR code updates every 3 minutes.

5. CUSTOMER SERVICE (FOR USER)

Help the home owner to download the EcoFlow app and bind the device.

Step 1: Install EcoFlow App

Scan the QR code or download at: https://download.ecoflow.com/app

Step 2: Scan user grant QR code

Home owner scans the system QR code displayed on the installer's phone using the EcoFlow App to bind the device.