Description
Used. Green Energy company gives a 12 month guarantee

- Overview
The SMA Sunny Mini Central SMC 7000HW is a high-performance 7 kW single-phase PV inverter designed for commercial and small utility-scale solar systems. It converts DC power from solar modules into AC power suitable for grid connection at 220 V single-phase.

Key features include:

Integrated Maximum Power Point Tracking (MPPT) for efficient energy harvest

High efficiency and reliability for long-term operation

Grid-compliant with European and international standards

- Safety Instructions
Installation and maintenance must be performed by qualified personnel.

Always disconnect DC and AC supply before servicing.

Wait at least 5 minutes after shutdown before opening the inverter (capacitors may retain charge).

Ensure proper grounding (PE connection).

Do not operate in explosive, flammable, or excessively humid environments.

Follow local electrical codes and utility regulations.

- System Requirements
Single-phase 220 V AC grid connection

PV array voltage within inverter DC limits

Appropriate DC isolator and AC circuit breaker installed

Adequate ventilation around the unit

- Installation
A. Mounting
Secure the inverter on a solid vertical wall or suitable mounting structure.

Maintain recommended clearance (≈30 cm) around the unit for ventilation and service access.

Ensure stable environmental conditions (temperature, humidity, dust).

B. DC Connection
Turn off AC and DC disconnects.

Connect PV strings to the inverter DC terminals, observing correct polarity.

Ensure that string voltages fall within the inverter's input range.

C. AC Connection
Connect L (live), N (neutral), and PE (ground).

Verify terminal torque according to manufacturer instructions.

Install a suitable AC protection device (circuit breaker or fuse).

- Startup Procedure
Turn on the DC isolator.

Turn on the AC breaker.

The inverter performs a self-test.

Display shows initialization → grid check → power production.

When grid parameters are verified, inverter begins feeding power.

- Display & Operation
Typical display information:

PV voltage and current

AC output voltage and current

Active and reactive power

Total energy produced (kWh)

Status messages and fault codes

Buttons allow:

Viewing system status

Accessing production data

Reviewing fault history

- Monitoring & Communication
The Sunny Mini Central SMC 7000HW may include:

RS-485 interface for SMA data communication

Optional SMA WebConnect or Bluetooth module for remote monitoring

Integration with SMA Sunny Portal for energy management and diagnostics

- Maintenance
Inspect air inlets and outlets periodically (every 6–12 months).

Remove dust using compressed air (do not use liquids).

Check cable connections annually.

Review fault log regularly.

No internal serviceable parts for users.

- Common Fault Codes
Fault Possible Cause Action
Grid Fault Voltage/frequency out of range Check grid supply
DC Overvoltage PV string voltage too high Adjust string configuration
Isolation Fault Grounding problem Inspect PV wiring
Overtemperature Poor ventilation Improve airflow or relocate inverter
If errors persist, contact SMA-certified service personnel.

- Shutdown Procedure
Turn off AC breaker.

Turn off DC isolator.

Wait 5 minutes before any maintenance or inspection.

Technical Summary
Rated Power: 7 kW

Input: DC from PV modules (check nameplate for voltage range)

Output: Single-phase 220 V AC

MPPT: Integrated

Protection: IP65 (model dependent)

Cooling: Natural convection or fan-assisted (depending on variant)