Select Solar 05002MD03 Installation Manual

The Select Solar 05002MD03 is a high-efficiency monocrystalline solar panel designed for residential and commercial rooftop installations. This manual provides essential information for safe handling, mechanical and electrical installation, system configuration, commissioning, and maintenance. Below are key sections covering safety precautions, product overview, installation steps, wiring diagrams, troubleshooting, and warranty information.

Features at a Glance

Key components: High-efficiency monocrystalline silicon cells, anodized aluminum frame, tempered glass, junction box with bypass diodes, and MC4 compatible connectors.

Safety Precautions

Solar panels generate DC electricity when exposed to light. Incorrect installation or handling can result in electric shock, fire, or injury.

1. Installation must be performed by qualified personnel in accordance with local electrical codes.
2. Do not install under wet, windy, or low-visibility conditions.
3. Wear appropriate personal protective equipment (PPE): insulated gloves, safety glasses, non-slip footwear.
4. Cover the panel surface completely with an opaque material during electrical wiring to prevent current generation.
5. Do not stand or walk on the panels.
6. Do not modify, drill into, or disassemble the panel or junction box.

WARNING! DC voltages can be lethal. Ensure the system is completely disconnected and isolated before performing any work.

Unpacking & Inspection

Upon receipt, carefully inspect all components for shipping damage.

1. Unpack in a clean, dry area.
2. Check the panel for cracks in the glass, bent frame, or damaged junction box.
3. Verify the contents: Solar panel, junction box cover plug (if separate), documentation packet.
4. Do not install a damaged panel. Contact your supplier immediately.
5. Keep the packaging for possible future transport or warranty return.

CAUTION! Handle panels with care. Use two people to lift and avoid pinching fingers between panels or frames.

Mechanical Installation

Panels must be securely mounted to a structurally sound roof or ground-mount system rated for your local wind and snow loads.

1. Mounting System: Use compatible, corrosion-resistant mounting rails and clamps designed for the panel frame dimensions.
2. Orientation & Tilt: For optimal performance in the Northern Hemisphere, orient panels true South. Adjust tilt angle based on latitude (typically 20-40 degrees).
3. Mounting Steps:
   • Secure mounting rails to roof rafters or structure according to mount manufacturer's instructions.
   • Lift panel onto rails (use two people).
   • Attach panel to rails using mid-clamps and end-clamps. Do not overtighten (recommended torque: 20-25 Nm).
   • Maintain a minimum gap of 10-15mm between panels for thermal expansion and drainage.
4. Grounding: The frame must be properly grounded to an earth ground per local electrical code, typically using a grounding lug attached to the frame's grounding hole.

Tip: Plan the array layout beforehand to minimize cable runs and ensure proper ventilation behind panels.

Electrical Installation

All wiring must comply with national and local electrical codes (e.g., NEC in the USA). Use sunlight-resistant PV wire rated for the system's DC voltage and current.

1. String Configuration: Connect panels in series to achieve the required input voltage for your inverter. Do not exceed the inverter's maximum input voltage, especially considering cold-temperature voltage rise.
2. Wiring Steps:
   • Ensure all panels are covered and the inverter DC disconnect is OFF.
   • Connect the MC4 connectors: Male (positive) from one panel to Female (positive) of the next. Female (negative) to Male (negative). Listen for a click to confirm secure connection.
   • Route cables neatly along mounting rails using UV-resistant cable ties. Avoid sharp bends.
   • Bring the final positive and negative strings to the inverter's DC input terminals or a combiner box.
3. Polarity Check: Before connecting to the inverter, use a DC voltmeter to verify correct polarity and expected open-circuit voltage (Voc).

WARNING! Incorrect polarity can destroy the inverter. Double-check all connections.

System Configuration

Proper system design is critical for safety and performance.

• Inverter Compatibility: Ensure your inverter's MPPT voltage range matches the string's voltage under operating conditions.
• Fusing: Follow inverter and local code requirements for DC overcurrent protection (fuses/breakers) for each string.
• Disconnects: A readily accessible DC disconnect switch must be installed between the array and the inverter.
• Labeling: Clearly label all disconnects, junction boxes, and conduits with "PHOTOVOLTAIC SYSTEM" and warning signs indicating the presence of dual power sources (utility and solar).

Commissioning

Final checks before energizing the system.

1. Visually inspect the entire installation for secure mechanical mounting, proper cable routing, and tight connections.
2. Verify grounding continuity from each panel frame to the system ground.
3. Ensure the inverter AC disconnect is OFF and the utility grid is disconnected (if required by your interconnection agreement).
4. Remove covers from all panels.
5. Turn ON the DC disconnect switch. Observe the inverter for startup and error codes.
6. Turn ON the AC disconnect switch. The inverter should begin grid synchronization and start producing power.
7. Monitor the inverter's display or monitoring platform to confirm power generation.

Maintenance

Solar panels require minimal maintenance but periodic checks ensure long-term performance.

1. Cleaning: Clean the glass surface 1-2 times per year, or more frequently in dusty environments. Use water and a soft sponge or cloth. Do not use abrasive materials or harsh chemicals. Clean early in the morning or late in the evening when panels are cool.
2. Inspection: Periodically inspect for:
   • Dirt, debris, or bird droppings.
   • Physical damage to glass or frame.
   • Loose mounting hardware or wiring connections.
   • Corrosion on connectors or junction boxes.
   • Vegetation shading.
3. Monitoring: Regularly check system performance via the inverter's monitoring system to detect any significant output drops.

CAUTION! Do not spray cold water on hot panels, as thermal shock can crack the glass.

Specifications

• Model: 05002MD03
• Maximum Power (Pmax): 500W
• Open Circuit Voltage (Voc): 49.5V
• Short Circuit Current (Isc): 12.9A
• Voltage at Pmax (Vmp): 41.8V
• Current at Pmax (Imp): 12.0A
• Module Efficiency: >21.0%
• Power Tolerance: 0 ~ +5W
• Max Series Fuse Rating: 20A
• Fire Rating: Class C (IEC 61730)
• Warranty: 25-year linear power output warranty, 12-year product warranty.

Troubleshooting

Reset: Consult your inverter manual for reset procedures.

Warranty & Support

Select Solar warrants the 05002MD03 panel against defects in materials and workmanship for 12 years from the date of purchase. A separate 25-year linear power output warranty guarantees a minimum of 97% of rated power in the first year, declining to 85% in year 25. Warranty is valid only if installed by a certified professional according to this manual and local codes. Keep your original purchase receipt.

For Technical Support or Warranty Claims:
Select Solar Customer Service
Phone: 1-800-555-0123
Email: [email protected]
Website: www.selectsolar.com/support
Please have your panel serial number and proof of purchase ready.