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1️⃣ 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

2️⃣ 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.

3️⃣ 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

4️⃣ Installation

A. Mounting

1. Secure the inverter on a solid vertical wall or suitable mounting structure.

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

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

B. DC Connection

1. Turn off AC and DC disconnects.

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

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

C. AC Connection

1. Connect L (live), N (neutral), and PE (ground).

2. Verify terminal torque according to manufacturer instructions.

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

5️⃣ Startup Procedure 🚀

1. Turn on the DC isolator.

2. Turn on the AC breaker.

3. The inverter performs a self-test.

4. Display shows initialization → grid check → power production.

5. When grid parameters are verified, inverter begins feeding power.

6️⃣ 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

7️⃣ 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

8️⃣ 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.

9️⃣ Common Fault Codes

If errors persist, contact SMA-certified service personnel.

🔟 Shutdown Procedure

1. Turn off AC breaker.

2. Turn off DC isolator.

3. 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)

• Certifications: CE, UL, VDE