Sunforce 37010 Manual

The Sunforce 37010 is a 12-Volt, 400-Watt Modified Sine Wave Power Inverter designed for mobile, RV, marine, and remote power applications. It converts DC battery power to standard household AC power, featuring two AC outlets, overload protection, low/high voltage alarms, thermal protection, and a cooling fan. Ideal for powering electronics, tools, and appliances up to 400 watts. Below are key sections for safety, features, installation, operation, specifications, and troubleshooting.

Features at a Glance

Key components: Modified Sine Wave Inverter, DC Input Cables with Alligator Clips, AC Outlets, Cooling Fan, Protection Circuitry, Status Indicators.

Feature	Description
Power Output	400 Watts Continuous, 800 Watts Peak Surge
Waveform	Modified Sine Wave
Input Voltage	12V DC
Output Voltage	120V AC, 60Hz
AC Outlets	Two Standard 3-Prong (NEMA 5-15R)
Protections	Overload, Short Circuit, Over-Temperature, Low/High Voltage
Indicators	Power On, Overload, Low/High Voltage Alarms
Cooling	Thermally Controlled Fan
Efficiency	Up to 90%
Dimensions	Compact Metal Housing

Installation

Unpack and inspect contents. Ensure proper ventilation.

1. Connect to Battery: Attach RED alligator clip to positive (+) terminal, BLACK clip to negative (-) terminal of 12V battery.
2. Secure Inverter: Mount in a dry, well-ventilated location away from heat sources and flammable materials.
3. Ground Connection: For safety, connect the grounding terminal (if provided) to a proper earth ground.
4. Verify Polarity: Double-check connections to avoid reverse polarity damage.

WARNING! Risk of electric shock and fire. Ensure all connections are tight and correct. Do not install near fuel or explosive vapors.

First-Time Setup

After installation, power on the inverter and test with a small load.

1. Power On: Connect to battery; the Power LED should illuminate.
2. Initial Load Test: Plug in a low-wattage device (e.g., 60W bulb) to verify operation.
3. Check Alarms: Ensure no alarm LEDs (Overload, Low/High Voltage) are active under no-load condition.
4. Monitor Temperature: Allow fan to operate; ensure inverter remains cool during initial run.

CAUTION! Do not exceed the continuous power rating. Start with minimal load to confirm proper function.

Specifications

• Model: Sunforce 37010
• Continuous Power: 400 Watts
• Peak Power: 800 Watts
• Input Voltage Range: 10.5 - 15.5V DC
• Output Voltage: 120V AC ±10%
• Frequency: 60Hz ±3Hz
• Efficiency: >85% typical
• No-Load Current Draw: <0.5A
• Low Voltage Alarm: 10.5V ±0.5V
• High Voltage Shutdown: 15.5V ±0.5V
• Operating Temperature: 32°F to 104°F (0°C to 40°C)
• Protections: Overload, Short Circuit, Over-Temperature, Reverse Polarity
• Dimensions (LxWxH): Approx. 9.5" x 5" x 3"

Controls and Indicators

Front/Rear Panel: Power Switch, LED Indicators, AC Outlets, DC Input Terminals.

LED Indicators: POWER ON (Green), OVERLOAD/FAULT (Red), LOW VOLTAGE (Red), HIGH VOLTAGE (Red).

Operation: Switch ON to activate inverter. LEDs indicate status: Green = Normal operation; Red = Fault condition (refer to manual). Cooling fan operates automatically based on temperature. No user-adjustable settings; all protections are automatic.

Connecting Devices

Connect standard 120V AC devices to the outlets. Ensure total load does not exceed 400 watts continuous.

1. Check Device Rating: Verify wattage of each device (e.g., laptop = 60W, TV = 100W).
2. Power Sequence: Turn inverter ON first, then plug in device.
3. Surge Consideration: Account for startup surges (e.g., motors); ensure peak rating (800W) is not exceeded.
4. Unplugging: Turn device off before unplugging from inverter.

Tip: Not suitable for sensitive medical equipment or devices requiring pure sine wave. Check device compatibility.

Operation Guidelines

Designed for intermittent use with appropriate loads.

1. Monitor Battery: Use with a adequately charged 12V battery (deep cycle recommended).
2. Avoid Overload: Do not exceed 400W continuous. If Overload LED lights, immediately reduce load.
3. Ventilation: Ensure fan vents are unobstructed; do not cover inverter.
4. Shutdown: Turn inverter OFF when not in use to minimize no-load battery drain.
5. High/Low Voltage: If alarm activates, check battery voltage and charging system.
6. Runtime: Depends on battery capacity (Ah) and load wattage. Calculate: Runtime (hours) ≈ (Battery Ah * 10) / Load Watts.

WARNING! Do not use with high-drain appliances like hair dryers, microwaves, or space heaters unless wattage is confirmed within limits. Risk of damage or fire.

Safety Features

Built-in Protections: Overload/Short Circuit (shuts off output, resets when cleared), Over-Temperature (fan activation, shutdown if critical), Low Battery Voltage (audible alarm and/or shutdown at ~10.5V), High Battery Voltage (shutdown at ~15.5V), Reverse Polarity (fuse protected).

Care & Maintenance

Keep unit clean and dry. Inspect periodically.

1. Cleaning: Unplug from battery. Use dry cloth to wipe exterior. Do not use liquids or solvents.
2. Connections: Check battery clips and terminals for corrosion; clean with wire brush if needed.
3. Vents: Ensure cooling fan vents are free of dust and debris.
4. Storage: Store in a cool, dry place if not in use for extended periods.

CAUTION! Do not open the casing. No user-serviceable parts inside. Refer servicing to qualified personnel.

Regulatory Information

FCC Compliance: This device complies with Part 15 of the FCC Rules. Operation is subject to interference acceptance. UL/CUL Listed or ETL Certified (check specific model). Copyright © Sunforce Products Inc. For support, visit www.sunforceproducts.com or contact customer service at 1-800-667-8727.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No Power LED	Battery dead/disconnected, Blown fuse	Check battery voltage and connections; inspect/replace DC input fuse.
Overload LED On	Connected load too high	Immediately reduce total load below 400W; wait for reset.
Low Voltage Alarm	Battery voltage below 10.5V	Recharge or replace battery; check connections.
High Voltage Alarm	Battery voltage above 15.5V	Check vehicle charging system; disconnect until voltage normalizes.
Inverter shuts down	Over-temperature, Severe overload	Allow to cool; ensure ventilation; reduce load and restart.
Device not working	Incompatible device, Overload	Test with simple resistive load (lamp); device may require pure sine wave.
Fan not running	Normal at low load, Faulty fan	Fan activates at high temperature. If overheats and fan is off, discontinue use.

Reset: Disconnect from battery for 30 seconds to reset protection circuits.

Service: 1-800-667-8727; www.sunforceproducts.com