WFCO WF-5110H - User Manual

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Summary

Important Safety Instructions

General Safety Precautions

General safety precautions for the inverter, covering exposure, wiring, and hazardous locations.

Battery Safety Precautions

Safety measures when working with batteries, including acid contact and avoiding sparks.

Electrical Performance Specifications

Rear Panel Interface

AC Output Fuse Information

Details the AC output fuse specifications, manufacturer, and replacement precautions.

Remote Port and Battery Terminals

Describes the remote port for control units and the connection for battery terminals.

Front Panel Interface

Ventilation and AC Input

Guidelines for proper ventilation clearance and connecting the AC input source.

Installation

AC Safety Grounding

Instructions for AC input and output grounding, including neutral grounding and GFCI requirements.

Ground Fault Circuit Interrupters (GFCI)

Requirements and recommendations for GFCI protection for AC output circuits.

AC and DC Wiring Connections

Hard-wire Installation

Steps and specifications for connecting AC output wiring in hard-wire configurations.

DC Wiring and Fusing

Recommendations for DC wiring, cable gauge, length, and battery cable fusing.

Operation

Controls and Indicators

Explanation of the ON/OFF switch, LED indicators (battery, AC input, failure), and LCD display.

Warranty Information

Warranty Terms and Limitations

Details the limited warranty period, coverage, exclusions, and limitations for the power inverter.

Warranty Service Procedure

Outlines the process for obtaining warranty service, including obtaining an RGA number.

Summary

Important Safety Instructions

General Safety Precautions

General safety precautions for the inverter, covering exposure, wiring, and hazardous locations.

Battery Safety Precautions

Safety measures when working with batteries, including acid contact and avoiding sparks.

Electrical Performance Specifications

Rear Panel Interface

AC Output Fuse Information

Details the AC output fuse specifications, manufacturer, and replacement precautions.

Remote Port and Battery Terminals

Describes the remote port for control units and the connection for battery terminals.

Front Panel Interface

Ventilation and AC Input

Guidelines for proper ventilation clearance and connecting the AC input source.

Installation

AC Safety Grounding

Instructions for AC input and output grounding, including neutral grounding and GFCI requirements.

Ground Fault Circuit Interrupters (GFCI)

Requirements and recommendations for GFCI protection for AC output circuits.

AC and DC Wiring Connections

Hard-wire Installation

Steps and specifications for connecting AC output wiring in hard-wire configurations.

DC Wiring and Fusing

Recommendations for DC wiring, cable gauge, length, and battery cable fusing.

Operation

Controls and Indicators

Explanation of the ON/OFF switch, LED indicators (battery, AC input, failure), and LCD display.

Warranty Information

Warranty Terms and Limitations

Details the limited warranty period, coverage, exclusions, and limitations for the power inverter.

Warranty Service Procedure

Outlines the process for obtaining warranty service, including obtaining an RGA number.

The WF-5100 Series is a 1000 Watt pure sine wave power inverter designed for use in Recreational Vehicles (RVs), marine applications, and other settings where a clean 115Vac voltage supply is required. This inverter functions as a standalone power unit with AC run-through capabilities, ensuring a continuous and stable power supply for electronic appliances.

Function Description

The primary function of the WF-5100 Series inverter is to convert DC power from batteries into 115Vac, 60Hz pure sine wave AC power. This pure sine wave output (with a Total Harmonic Distortion, THD, of less than 3%) is crucial for operating higher-end electronic equipment, as it mimics the quality of power provided by utility companies.

A key feature of this inverter is its automatic transfer switch. When 115Vac utility power is available and connected to the inverter, the utility power flows directly through the inverter to the connected appliances. This is referred to as the "run-through mode." Should the 115Vac utility power be interrupted or cut off, the inverter automatically switches to "invert mode," drawing power from the connected batteries and converting it to 115Vac. This transfer happens very quickly, within 2 milliseconds, ensuring an interruption-free power supply for sensitive equipment. Once the 115Vac utility power is restored, the inverter seamlessly switches back to the run-through mode. It's important to note that a battery must be connected for the run-through function to operate.

The inverter is available in different input voltage configurations: 12Vdc input for models WF-5110H and WF-5110G, and 24Vdc input for models WF-5120H and WF-5120G. All models provide a 115Vac, 60Hz output.

There are also two versions regarding output wiring:

Hard-wired outputs: Models WF-5110H and WF-5120H are designed for permanent electrical connections.
GFCI Receptacles: Models WF-5110G and WF-5120G feature Ground Fault Circuit Interrupter (GFCI) receptacles, offering a safe and convenient way to plug appliances directly into the inverter.

Usage Features

The WF-5100 Series inverter is designed for user-friendly operation with several features enhancing its usability:

Continuous Power Output: It provides a continuous output of 1000 Watts, suitable for a wide range of electronic appliances.
Fast Transfer Time: The built-in 2-millisecond transfer time ensures that sensitive equipment remains operational without interruption during power source transitions.
Microprocessor Control: An advanced microprocessor facilitates a friendly interface with the user, managing the inverter's operations efficiently.
Dual AC Outlets/Hardwire Options: Users can choose between models with dual AC GFCI outlets for direct plug-in convenience or hardwire AC connection options for integrated systems.
LCD Display: An LCD display provides real-time information on all operational statuses, allowing users to monitor the inverter's performance at a glance.
ON/OFF Switch: A dedicated ON/OFF switch controls the inverter's control circuit. When turning on the inverter and connecting multiple appliances, it is recommended to turn on appliances separately after the inverter is active to avoid a sudden surge of starting current.
LED Indicators: The inverter includes several LED indicators for quick status checks:
- Yellow LED: Indicates battery backup status.
- Green LED: Indicates AC input status.
- Red LED: Indicates an inverter failure.
Input Voltage Ranges: The inverter operates within specific DC input voltage ranges: 10 to 15.0 VDC for 12V models and 20 to 30.0 VDC for 24V models.
Cooling Fan: A loading-controlled cooling fan helps maintain optimal operating temperatures, ensuring efficient and reliable performance.

Maintenance Features

The WF-5100 Series inverter incorporates several protection mechanisms to ensure safe operation and minimize maintenance needs:

Battery Protection: Includes protections against both over-voltage and under-voltage conditions for the battery, safeguarding the battery's lifespan and the inverter's operation.
Over Temperature Protection: Automatically shuts down or reduces output if the inverter's internal temperature exceeds safe limits, preventing damage from overheating.
Overload Protection: Protects the inverter from damage if the connected load exceeds its rated capacity.
Short Circuit Protection: Guards against damage from short circuits in the output wiring.
Ground Fault Protection: Models with GFCI receptacles provide ground fault protection, enhancing user safety by detecting and interrupting ground faults.
Reverse Polarity Protection: Protects the inverter from damage if the battery connections are accidentally reversed.
AC Output Fuse: Features a 15A/600VAC AC output fuse for over-current protection, which is user-replaceable.
Ventilation: Proper ventilation is crucial for the inverter's performance. Users should ensure at least 2 to 3 inches of clearance for airflow and avoid obstructing the ventilation openings. The inverter should not be installed in zero-clearance compartments to prevent overheating.
AC Input Protection: The AC input can handle up to 120Vac, 60Hz, 12 Amps Max.
Fuse Information: For AC output fuse replacement, specific information is provided: Manufacturer: LITTELFUSE INC, Model Number: KLDR15, Fuse Size: 10.3*38.1mm, Rating: 15A/600VAC. It is crucial to turn off the power switch before replacing the fuse and to use only the specified type and rate fuse for continued fire protection.
DC Wiring Recommendations: Recommendations are provided for DC wiring, emphasizing the use of high-quality copper wiring, keeping cable length as short as possible, and using adequate gauge cables to prevent performance decrease.
Battery Cable Fusing: A UL-listed DC-rated slow-blow fuse must be installed in the positive battery cable, within 18 inches of the battery, to protect both the battery and cables. Failure to install this fuse will void the warranty and may cause damage to the inverter and battery.
Safety Grounding: Detailed instructions for AC safety grounding are provided, ensuring proper connection to incoming AC utility sources and loads. The neutral conductor of the AC output is automatically connected to the safety ground during inverter operation, conforming to National Electrical Code requirements.
GFCI Requirements: For Recreational Vehicles in North America, GFCI protection is required for all branch circuits connected to the AC output hardwire. Specific GFCI receptacle types are recommended (GENERAL PROTECHT GROUP INC, Type DG15 or AMERICAN ELECTRIC DEPOT INC, Type G1501) to ensure proper operation.
Remote Port: The inverter includes a remote port for connecting an RJ-11 wired remote control unit, offering convenient control from a distance.
Chassis Ground Terminal: A chassis ground terminal is provided for connecting to earth, further enhancing safety.

The WF-5100 Series inverter is designed with safety and reliability in mind, incorporating multiple protective features and clear guidelines for installation and operation to ensure a long and trouble-free service life.