Sunpower SPR-E-Flex-110 Safety And Installation Instructions

The Sunpower SPR-E-Flex-110 is a high-efficiency, flexible solar panel designed for marine, RV, and specialty applications. It features durable construction, lightweight design, and high power output in low-light conditions. Below are key sections for safety warnings, product overview, installation procedures, electrical connections, maintenance, and troubleshooting.

1. Safety Warnings and Precautions 2. Product Overview 3. Installation Requirements 4. Mounting Instructions 5. Electrical Connections 6. Commissioning and Testing 7. Maintenance Guidelines 8. Technical Specifications 9. Warranty Information 10. Troubleshooting

Safety Warnings and Precautions

Key safety considerations: Electrical hazards, mechanical risks, and environmental conditions.

Hazard	Precaution
Electrical Shock	Disconnect all power sources before installation or maintenance
High Voltage	Panels generate DC voltage when exposed to light; cover with opaque material during installation
Fire Risk	Ensure proper wiring and use recommended fuses/breakers
Mechanical Injury	Wear protective gloves; panel edges may be sharp
Environmental Exposure	Install in well-ventilated areas; avoid standing water
Chemical Exposure	Do not puncture or burn panel; may release hazardous materials
Weight Hazard	Panel is lightweight but requires secure mounting
Tool Safety	Use insulated tools for electrical work
Weather Conditions	Do not install during rain, snow, or high winds
System Compatibility	Use only with compatible charge controllers and inverters

Product Overview

Unpack and inspect contents. Verify all components are present and undamaged.

Panel: SPR-E-Flex-110 flexible solar panel with junction box.
Mounting hardware: Adhesive strips or mechanical fasteners (depending on kit).
Wiring: MC4 connectors pre-attached with weatherproof seals.
Documentation: This manual and warranty card.

WARNING! Do not bend panel beyond specified radius (typically 30°). Handle with care to avoid micro-cracks.

Installation Requirements

Ensure proper site selection and preparation before installation.

Location: Select area with maximum sunlight exposure, minimal shading.
Surface: Clean, dry, and structurally sound (roof, deck, or curved surface).
Orientation: Angle panel toward equator (south in northern hemisphere).
Clearance: Maintain 3-4 inches behind panel for airflow and cooling.
Tools: Drill, screwdriver, wire cutters, multimeter, sealant (if required).

CAUTION! Verify surface can support panel weight and wind loads. Consult structural engineer if unsure.

Mounting Instructions

Panel Type: Flexible, lightweight solar panel.
Dimensions: Approximately 59 x 26 inches (varies by model).
Weight: ~4.5 lbs (2 kg).
Cell Technology: SunPower Maxeon® cells.
Power Output: 110W nominal.
Voltage: 12V nominal (Vmp ~18V, Voc ~22V).
Connectors: MC4 (IP67 rated).
Temperature Range: -40°F to +185°F (-40°C to +85°C).
Warranty: 25-year power output, 5-year product.

Electrical Connections

Access electrical terminals via junction box on panel rear. Front Panel: N/A (no controls).

System Components: Solar panel, charge controller, batteries, inverter, fuses, disconnect switches.

Wiring: Use UV-resistant, stranded copper wire (minimum 10 AWG for <10 ft). Connections: Positive (red MC4) to charge controller PV input positive; Negative (black MC4) to controller PV input negative. Grounding: Bond panel frame to system ground per NEC Article 690.

Commissioning and Testing

Verify all connections before applying load.

Turn off all system components before connecting panel.
Check polarity: Multimeter should show positive DC voltage (18-22V) in sunlight.
Connect to charge controller following manufacturer instructions.
Monitor initial performance: Voltage and current should match specifications.

Tip: Test system with multimeter before finalizing installation.

Maintenance Guidelines

Supports long-term operation with minimal maintenance.

Cleaning: Use soft cloth and mild soap solution; rinse with water.
Inspection: Check monthly for debris, shading, or physical damage.
Connections: Verify tightness and weatherproofing every 6 months.
Performance: Monitor output; significant drops may indicate issues.
Storage: If removing, store in dry, cool location away from direct sunlight.

WARNING! Do not use abrasive cleaners or high-pressure water. Do not walk on panel.

Technical Specifications

Closed Circuit: Panel produces power when connected to load. Open Circuit: Panel voltage present with no load. Bypass Diodes: Integrated for partial shading tolerance.

Warranty Information

Unplug system before cleaning. Use soft cloth only; no harsh chemicals.

CAUTION! Do not apply weight or sharp objects to panel surface.

Troubleshooting

UL 1703 certified; complies with safety standards for flat-plate photovoltaic modules. Copyright © SunPower Corporation; trademarks of SunPower Corp. For support, visit www.sunpower.com or contact 1-800-786-7693.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No output voltage	Shading, bad connections, damaged panel	Check for shading; verify connections with multimeter; inspect for physical damage.
Low power output	Dirty surface, partial shading, high temperature	Clean panel; remove shading objects; ensure proper ventilation.
MC4 connectors overheating	Loose connections, undersized wiring	Tighten connections; verify wire gauge meets specifications.
Panel delamination	Manufacturing defect, extreme stress	Contact SunPower support for warranty evaluation.
Water ingress in junction box	Seal failure, improper installation	Re-seal with appropriate weatherproofing; ensure gaskets are intact.

Reset: Disconnect and reconnect all electrical connections.

Service: 1-800-786-7693; www.sunpower.com