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System Overview

The All in One 2 is a fully integrated AC-coupled energy storage system consisting of:

• AIO2 inverter with built-in 13.5 kWh LFP battery
• MPPT Unit (6-channel PV input)
• Gateway 2 for multi-load control and backup
• Optional expansion batteries (up to 2 additional units)

The system supports flexible on-grid, off-grid, and hybrid operation with generator control, EV charger integration, and smart load functionality.

Key Features

• 13.5 kWh internal battery with scalable storage
• Supports up to 6 PV strings via MPPT module
• Full home backup when paired with Gateway 2
• Supports generators with remote start
• Built-in WiFi, BLE, and 4G connectivity
• Modular terminals for easier installation
• Supports ECO, TOU, off-grid, and islanding modes

Safety Requirements

• Only qualified installers may install or maintain the system.
• The AIO2 contains high-voltage components and presents electrical shock risk.
• Do not work on the system during rain, snow, lightning, or high winds.
• The unit must be grounded before any other connection is made.
• Never connect the MPPT Unit to wind or hydro systems—PV only.
• Do not open the casing; no user-serviceable parts are inside.

System Components

• AIO2: Integrated inverter + battery, AC terminal block, battery breaker, communication ports.
• MPPT Unit: 6 independent PV channels, 600 V max input.
• Gateway 2: Critical, smart, and general load management, generator input, EV charger input.
• Expansion Battery: 260–346 VDC, 13.5 kWh variant available.

Operating Modes

• Standby Mode: Powered but not actively working.
• On-Grid Mode: Normal operation, supports grid + solar + battery.
• Off-Grid Mode: Powers loads without the grid using battery and PV.
• Fault Mode: System halts to protect hardware and displays an error.

Main Work Modes

Daytime Mode

• Supplies power to local loads first.
• Charges battery with surplus solar.
• Exports excess energy to the grid.

Night-Time Mode

• Battery supplies loads to reduce peak pricing.
• Optional off-peak charging if allowed by tariff.
• Generator support if grid is unavailable.

Island Mode

During a grid outage, the system automatically switches to off-grid supply. The Gateway 2 manages critical and general loads based on battery SOC.

Demand Response Mode

Supports remote control by a grid services provider (optional integration).

Installation Requirements

• Install vertically on a non-flammable, load-bearing wall (minimum 120 mm depth).
• Maintain required clearances:
  • Top: 300 mm
  • Bottom: 250 mm
  • Sides: 250 mm
• Ambient temperature must remain below 40°C for optimal performance.
• Do not install near antennas or flammable materials.

Installation Steps — AIO2 & MPPT

1. Mark drill holes using mounting bracket template.
2. Drill to 75 mm depth and fix expansion bolts.
3. Remove battery pack from packaging.
4. Mount AIO2 on bracket; adjust support feet to level.
5. Insert internal battery module and secure front cover.
6. Place MPPT Unit on top and secure with screws.

Installation Steps — Gateway 2

1. Mark wall, drill mounting holes, and secure bracket.
2. Hang Gateway 2 and fasten screws.
3. Maintain clearance for cooling.

Electrical Connections

AIO2 AC Connection

• Use minimum 10 mm² cable for AC output.
• Strip 12 mm and connect via waterproof gland to AC WAGO block.

MPPT PV Connection

• Use 4–6 mm² PV cable depending on run length.
• Max PV voltage: 600 V.
• PV input uses MC4 connectors — do not mix types.

Gateway 2 AC Connections

• Generator: Connect via suitable over-current protection (max 32 A).
• PV Inverter: Connect to designated WAGO via OCPD.
• Parallel Input: Up to 3× AIO2 systems supported.
• Critical Load: Max 32 A via suitable breaker.
• Smart Load: Enabled when export >1 kW.
• EV Charger: Feed via 40 A Type A RCD, 6 mm² cable.
• General Load: Typically 16–25 mm², via suitable breaker.

Communication Connections

The system uses multiple ports depending on configuration:

• RS485 for meters
• Gateway-to-AIO2 LAN
• USB port for firmware
• 4G / WiFi antennas
• DRM input (Australia)

Wireless Connectivity

The inverter includes built-in WiFi, BLE, and 4G. Default setup uses 4G, with WiFi configured during commissioning.

System Commissioning

Pre-Commissioning Checks

• Verify all AC/DC connections are secure and correctly polarised.
• Check correct earthing on all components.
• Ensure PV strings fall within Voc/ISC limits.
• Ensure Gateway 2 wiring matches load design.

Startup Procedure

1. Switch on AC breaker.
2. Turn on both PV DC switches (MPPT channels 1–3 and 4–6).
3. Turn on battery breakers (AIO2 + expansions).
4. Inverter starts automatically when PV > 80 V and battery > 254 V.

Shutdown Procedure

1. Open AC breaker.
2. Turn off battery breakers.
3. Turn off PV switches.
4. Wait until LEDs go out (up to 5 minutes).

Maintenance

• Clean external surfaces using a dry or slightly damp cloth.
• Inspect heat sink and fan regularly.
• Cycle DC isolator annually to clean contacts.
• Ensure adequate airflow and clear dust/debris.

Troubleshooting

The manual includes a comprehensive fault list. Common issues include:

• Grid voltage/frequency faults: Check supply and grid code.
• PV isolation faults: Check grounding and humidity conditions.
• Battery communication faults: Verify BMS cable and connector seating.
• Meter comms loss: Check RS485 polarity and cable type.

System Removal & Disposal

1. Follow full shutdown procedure.
2. Disconnect all AC, DC, and communication cables.
3. Remove cable glands, internal battery, and mounting bracket.
4. Dispose according to regional electrical waste regulations.