Welcome Please read this manual thoroughly before installing and operating your new Kriëger® Power Inverter. This manual contains information you need to obtain the performance required for your application. Keep this manual for future reference. This Kriëger® Inverter converts low voltage, direct current (DC) to 110 volt modified sine wave (MSW) alternating current (AC).
WARNINGS: INVERTER OUTPUT This is a heavy-duty device that produces voltages similar to commercial AC power. Danger of shock or electrocution - treat inverter output the same as commercial AC power. Do not use the inverter near flammable materials or in any locations that may accumulate flammable fumes or gases. This is an electrical device that can briefly spark when electrical connections are made or broken. Do not allow water or other liquids to contact the inverter.
into AC receptacles to supply a low-voltage DC or AC output to the appliance. If the appliance label states that the charger or adapter produces a low-voltage DC or AC output (30 volts or less), there will be no problem powering that charger or adapter. Some fans with synchronous motors may slightly increase in speed (RPM) when powered by the inverter. This is not harmful to the fan or to the inverter.
Multiply: AC AMPS X 110 (AC voltage) = WATTS This formula yields a close approximation of the continuous load of your appliance. Multiply: WATTS X 2 = Starting Load for most appliances This formula yields a close approximation of the starting load of most appliances. Exceptions are motorized appliances such as pumps, freezers and air conditioners. These appliances can have startup loads of up to eight times the rated watts. Front Panel KR3000 / KR4000 A. LCD Digital Display (See LCD Diagram on Next Page).
LCD Diagram 1. Battery Level. 2. Output wattage (W) or input voltage display (VDC). 3. Warning indicator – a. High voltage b. Low voltage c. Voltage overload. 4. Temperature shutdown. Hardwire Instructions KR3000 / KR4000 First make sure unit is completely disconnected from any power source and main power is completely OFF. Begin by unscrewing the front plate which is located under the 2 x AC outlets at the front of the inverter.
The recommended Gauge wires are: KR3000: Jacketed No. 10 Gauge copper 2-wires KR4000: Jacketed No. 8 Gauge copper 2-wires Some installation codes are required and we recommend use of oilresistant cables rated for damp or wet locations. We would strongly recommend having this installed by a certified electrician since these wires will have a live current, if installed improperly, can be a fire or shock hazard.
Rear Panel KR3000 / KR4000 F. High-Speed Cooling Fans. When the temperature inside the inverter exceeds a preset limit, the Cooling Fans automatically turn on to cool the inverter. When the temperature reduces, the fans turn off. G. Positive Power Input Terminal. H. Negative Power Input Terminal. I. Remote Control Receptacle. J. Ground Terminal. K. Main Switch is used for complete shutdown of the inverter.
Sizing the Battery Bank To determine the minimum battery bank ampere-hour rating that you will need to operate appliances from the inverter, and any DC appliances powered by the battery bank, follow these steps: 1. List the maximum wattage that the inverter has to provide (as above). 2. Estimate the number of hours the appliances will be in use between battery recharges. This will differ depending on appliances.
Note: The type of batteries you use to power your high power inverter is important. Operating a high-power inverter will routinely discharge batteries and they will require frequent recharging. Batteries used to start engines are not designed to repeatedly charge and discharge. Kriëger® recommends using “deep-cycle” or “marine” rated batteries. Cable Gauges When connecting the inverter to a battery bank use the thickest stranded insulated copper wire available, in the shortest length practical.
CAUTIONS: • • • • • Loose connections can result in a severe decrease in voltage that can cause damage to cables and insulation. Failure to make correct polarity ( Pos, Neg ) connection between the inverter and the battery bank can result in blowing fuses in the inverter and can permanently damage the inverter. Damage caused by reversed polarity is not covered under the Kriëger® warranty.
Connecting the Inverter This inverter has two DC cable connections, one positive and one negative. The order of steps in the following procedure minimizes the danger of sparking near the battery bank. 1. Prepare all cable set ends with ring terminals at the battery ends. 2. Install one fuse holder with fuse in the Pos cable close to the battery bank end. 3. Make sure the inverter is OFF. 4. Ensure all appliance cords or extension cords are disconnected from the inverter. 5.
Television and Audio Suggestions Although all Kriëger® inverters are shielded and filtered to minimize signal interference, some interference with your television picture may be unavoidable, especially in weak signal areas. However, here are some suggestions that may improve reception: 1. First, make sure that the television antenna produces a clear signal under normal operating conditions. Also, ensure that the antenna cable is properly shielded and of good quality. 2.
How This Modified Sine Wave Power Inverter Works There are two stages in which this power inverter changes the 12 volt DC (or battery) power into 110v AC (household current). STAGE 1: This inverter uses a DC to DC converter to increase the DC input voltage from the battery to 145 volts DC. STAGE 2: The inverter then converts the high voltage DC into 110v AC (household current), using advanced MOSFET transistor in a full bridge configuration.
Troubleshooting PROBLEM: Output voltage below 100V AC Reason A “True RMS” voltage meter is required to properly measure output voltage of a modified wave inverter. Solution Test output voltage with a “True RMS” and the correct voltage will be displayed. PROBLEM: No Input Voltage Reason Solution Poor contact with battery terminals. Shut down inverter and disconnect. Clean terminals thoroughly and reconnect. Blown DC battery fuse(s). Turn off inverter. Fix problem.
Specifications: KR3000 Specifications Output Continuous Watts (W) Surge Capacity (Peak Power) Description 3000W + 10W (USB) 6000W Rated Input DC (V,A) Input Voltage Range Rated Frequency (Hz) Rated Output AC (V,A) Rates Output USB (V,A) No Load Current 12VDC, 322A 10.5 to 15.5 VDC +/- 0.3V 60 Hz±1 115V +/- 10%, 26A 4 * 5V/max. 2.1A (iPad) <0.9A DC Optimum Efficiency Fuse (A) Fuse Type Output Wave Form Max. Touch Temperature Operating Temperature 90% min.
Specifications: KR4000 Specifications Output Continuous Watts (W) Surge Capacity (Peak Power) Description 4000W +10W(USB) 8000W Rated Input DC (V,A) Input Voltage Range Rated Frequency (Hz) Rated Output AC (V,A) Rates Output USB (V,A) No Load Current 12VDC, 430A 10.5 to 15.5 VDC +/- 0.3V 60 Hz±1 115V +/- 10%, 34.8A 4 * 5V/max. 2.1A (iPad) <0.9A DC Optimum Efficiency Fuse (A) Fuse Type Output Wave Form Max. Touch Temperature Operating Temperature 90% min.
Warranty and Return Warranty by PowerBright What does this warranty cover? This Limited Warranty is provided by PowerBright and covers defects in workmanship and materials in your KR3000 / KR4000. This warranty period lasts for 36 months from the date of purchase at the point of sale to you, the original end user customer. Proof of purchase is required to make warranty claims.
some products, PowerBright maintains a network of regional Authorized Service Centers. Call PowerBright or check our website to see if your product can be repaired at one of these facilities. What does this warranty not cover? This Limited Warranty does not cover normal wear and tear of the product or costs related to the removal, installation, or troubleshooting of the customer's electrical systems. This warranty does not apply to, and PowerBright will not be responsible for, any defect in or damage to: 1.
REGARDING THE USE OF THE KRIËGER KR3000 / KR4000 IN CONNECTION WITH LIFE SUPPORT SYSTEMS OR OTHER MEDICAL EQUIPMENT OR DEVICES. Return Material Authorization Policy Before returning a product directly to PowerBright you must obtain a Return Material Authorization (RMA) number and the correct factory "Ship To" address. Products must also be shipped prepaid.