Allto Solar SE-US-120W-F User Manual

The Allto Solar SE-US-120W-F is a 120W monocrystalline solar panel designed for residential and commercial use, featuring high-efficiency PERC cells, IP67 waterproof rating, corrosion-resistant aluminum frame, and compatibility with various mounting systems. It operates under standard test conditions (STC) with a maximum power output of 120W. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Monitoring System 8. Safety Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Monocrystalline PERC solar cells, Junction Box with bypass diodes, MC4 connectors, Aluminum frame, Tempered glass.

Feature	Description
Cell Type	Monocrystalline PERC
Maximum Power (Pmax)	120W
Open Circuit Voltage (Voc)	22.4V
Short Circuit Current (Isc)	7.14A
Maximum Power Voltage (Vmp)	18.6V
Maximum Power Current (Imp)	6.45A
Frame Material	Anodized aluminum alloy
Junction Box	IP67 rated with bypass diodes
Connectors	MC4 compatible
Weight	7.5 kg (16.5 lbs)

Installation

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

Choose location: Select area with maximum sunlight exposure, minimal shading.
Mounting: Use compatible racking system; secure with provided bolts.
Electrical connection: Connect panels in series/parallel as per system design using MC4 connectors.
Grounding: Connect grounding wire to frame grounding point.

WARNING! Install during daylight only. Use proper personal protective equipment (PPE). Ensure mounting structure can support panel weight and wind loads.

First-Time Setup

After physical installation, verify electrical connections.

Check polarity: Ensure positive (+) and negative (-) connections are correct.
Connect to charge controller/inverter: Follow manufacturer's instructions for your specific system.
Initial test: Monitor voltage and current output to verify proper operation.
System configuration: Set up monitoring device if applicable.

CAUTION! Do not connect or disconnect under load. Cover panel with opaque material during electrical work.

Specifications

Model: SE-US-120W-F
Maximum Power (Pmax): 120W
Cell Efficiency: >21%
Power Tolerance: 0 ~ +3%
Operating Temperature: -40°C ~ +85°C
Maximum System Voltage: 1000V DC (UL)
Maximum Series Fuse Rating: 15A
Fire Rating: Class C (UL 790)
Warranty: 25-year linear power output, 10-year product

Controls and Settings

This panel has no user controls. System performance is managed through connected charge controller or inverter.

Monitoring: Use compatible monitoring system to track: Voltage (V), Current (A), Power (W), Energy production (kWh).

Angle Adjustment: For fixed-tilt systems, optimal angle varies by location and season. Consult solar angle calculator for your latitude.

Connecting Devices

Series Connection: Connect positive of one panel to negative of next to increase voltage. Parallel Connection: Connect positives together and negatives together to increase current.

Ensure all devices are turned off before making connections.
Use only MC4 compatible connectors and UV-resistant cabling.
Include appropriate overcurrent protection (fuses/breakers) in system design.
Connect to charge controller first, then to battery bank (if off-grid).

Tip: Label all cables for easy identification during maintenance.

Monitoring System

For optimal performance monitoring, connect to compatible monitoring device.

Data collection: Monitoring device records voltage, current, power, and energy.
Performance analysis: Check for deviations from expected output.
Fault detection: Alerts for shading, soiling, or connection issues.
Remote access: Some systems offer smartphone app or web portal.

WARNING! Only qualified personnel should install monitoring equipment that requires direct electrical connection.

Safety Features

Bypass Diodes: Integrated in junction box to minimize power loss from shading. Frame Grounding: Dedicated point for safety grounding. IP67 Rating: Protection against dust ingress and temporary immersion.

Care & Cleaning

Regular cleaning maintains optimal performance. Use soft brush or cloth with water. For stubborn dirt, use mild soap solution.

CAUTION! Do not use abrasive materials or high-pressure water. Clean during cool hours (early morning or evening) to avoid thermal shock.

Regulatory Information

UL 1703 certified. Complies with FCC Part 15 Class B. CE marked for European market. Copyright © 2023 Allto Solar; trademarks of Allto Solar Technologies, Inc. For support, visit www.alltosolar.com or contact 1-800-555-ALLTO.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No output power	Shading, dirty panel, disconnected cable	Remove shading objects, clean panel surface, check all connections.
Low power output	Partial shading, soiling, aging	Clean panel, check for obstructions, verify system age vs. expected degradation.
Hot spots on panel	Bypass diode failure, cell damage	Contact qualified technician for inspection and possible replacement.
Water ingress in junction box	Damaged seal	Disconnect from system and contact support for repair.
Physical damage to glass	Impact from hail or debris	Stop using immediately; panel may need replacement.

Reset: Disconnect and reconnect all cables after ensuring no fault conditions.

Service: 1-800-555-ALLTO; www.alltosolar.com