EXPERTPOWER IVOCH3KW Pure Sine Wave Inverter Charger Owner’s Manual

12V – 110V  Pure Sine Wave 2000W/3000W
Inverter-Charger
For Models:
IVOCH2KW / IVOCH3KW

WARNING
PLEASE READ INSTRUCTIONS BEFORE CONTINUING
This manual contains important safety installation, and operation instructions for the ExpertPower Inverter-Charger. Please do not operate the Inverter- Charger without reading this manual first.

Wiring Guide

General Information
Safety Information and Warnings

The safety of the consumer has been considered prior to designing and creating this product. Please follow the user instructions carefully to operate and install this component to your power system. In order to prevent accidents and injuries please keep this manual for future reference.

1. The installation of the inverter should be done by professionals or under the assistance of a local dealer.
2. Verify whether the input DC voltage range meets voltage polarity requirements (12V±20%). Confirm whether the load device voltage is single-phase 100V ~ 120VAC; power should not be more than rated output power of the inverter.
3. Do not spill any liquid on the inverter, or use a damp cloth to wipe the inverter casing. Do not touch the unit’s terminals when running, especially with wet hands, otherwise electric shock injury can occur.
4.  If you need to change the operating environment, do not do so yourself. It should be done by professionals or with assistance from the supplier/local dealer.
5. The operating environment of the inverter should be well-ventilated with a temperature range of -4° to 113° F. Keep away from fuel sources and direct sunlight. Do not run in humid or dusty environments this can cause failures to occur. During operation, the inverter-charger will reach medium to high temperatures; this is normal. Remember to maintain proper ventilation during operation to keep the inverter-charger running in the best condition. To facilitate this, please keep a clean environment around the unit and DO NOT allow any vents or fans to be blocked.
6. Keep children away from this unit at all times. It is not a toy. Serious injury or death could occur if inappropriately handled.
7. Confirm if the inverter can be connected with existing wiring. The AWG rating should be sufficient for the loads that will be ran.
8. Do not open the inverter under any circumstances. Besides voiding the warranty, you are risking severe electric shock to yourself and others around you.

Product Overview

Introduction
ExpertPower 12V Inverter-Charger
Our inverter-charger is Pure Sine-Wave, Low-Frequency, and comes equipped with an On-board Intelligence System that handles most of the heavy lifting within your electrical system. The inverter converts 12 volt direct current (VDC) into 110 volt alternating current (VAC), or more commonly, the power you utilize at home through your wall outlets. A typical solar power system consists of a solar panel, solar charge controller, inverter, battery, and intermediary components such as fuses and breakers.
This inverter also has an Auto Transfer Switch also known as the Bypass Feature which allows the system to be used with or without batteries meaning it can depend solely on shore-power for all your AC and DC appliances.
Core Advantages:

• Low frequency – Heavy duty transformer
• High conversion efficiency (90% ∼ 98%)
• Intelligent CPU management
• Latest inverter technology
• Best electric components

Applications

| Home Power Tools| Circular saws, drills, grinders, sanders, buffers, air compressors, weed and hedge trimmers.
---|---|---
| Office Equipment| Computers, phones, monitors, printers, scanners, 3D printers, fax machines, internet and Wi-Fi modems.
| Household Appliances| Vacuum cleaners, fans, clippers, electric shavers, sewing machines, lights, washers and dryers.
| Kitchen Appliances| Coffee makers, blenders, ice makers, toasters, electric stoves, dish washers, refrigerators, and water pumps.
| Industrial Equipment| Metal halide lamps, high-pressure sodium lamp, air compressors, and ventilation systems.
| Home Entertainment| Televisions, blue-ray players, gaming consoles, stereos, musical instruments, and satellite TV receivers.

Inverter Diagram

Component Key

1. Top View
   A.| Terminals:
   1. Negative (-)
   2. Positive (+)
   ---|---
   B.| LCD Screen
   C.| Switch Panel Port
   D.| Status LEDs
   E.| Battery Type Multi-Switch
   F.| 50Hz/60Hz Switch & Priority Modes
   G.| Next Page Button
   H.| Mounting Brackets
2. Front View
   I.| Fan
   ---|---
   J.| RS232 Communication Port
   K.| Grounding Terminal
3. Switch Panel
   L.| Switch Panel LEDs
   ---|---
   M.| On/Off Switch
   N.| 26 ft Communication Cable
4. Back View
   O.| Inverter Output Protection
   ---|---
   P.| AC Outlets
   Q.| AC Terminal

Technical Specifications
Inverter Specifications

Inverter Safety Specifications

AC Bypass Specifications

Charger Specifications

Top Panel Overview

Panel Components

Wiring Guide

WARNING:
The output voltage of this unit must never be connected in its input AC terminal, overload or damage may result. Always switch on the inverter before plugging in any appliance.

AC Wiring Connection

110V Single Phase
This connection method is completely optional. We recommend using 10 -12 AWG wires for AC terminal block connection. The diagram below shows an example of both AC input and output being used. This inverter charger can also be used with just AC input or output connection depending on your needs. Please contact our support team if you are unsure how to wire any part of your inverter.

AC Terminal Block Wiring:

• Slightly unscrew the first row of screws to open the wire clamp.
• Insert exposed wire segment into the bottom opening.
• Tighten the screw back in while the exposed wire segment is inserted. Ensure all wires are properly fastened.

DC Wiring Connection
Cable Size, Material, and Safety
It is recommenced that the battery bank be kept as close as possible to the inverter.
The following table is a suggested fuse and wiring guide for a 3 ft cable. If wiring is longer than 3 ft, please increase the diameter (AWG) of cable for stability and safety.

• The stability and safety of this product can be improved by using one shorter- thicker cable. Therefor, if in doubt, round up in wire size and keep the length as short as possible. Another important aspect of your power system is to take into consideration the cable material. We highly recommend that you use only coper cables for your wiring needs as they are the gold standard for this type of product.

Connecting Battery Bank

• Unscrew the top plastic screw on the protective plastic cover.
• Remove protective plastic cover to get access to the positive and negative terminals.
•  Unscrew the metal bolt and removeboth washers.
• Attach the Battery Pack Cables to the appropriate terminal, place washers over the cable, and screw the bolt back on firmly.
• Return the protective plastic cover and fasten it back on with the plastic screw.

Grounding Your Inverter

Grounding Your System
Grounding is an important step for any electrical system and is highly recommended.
Grounding your electrical system can help with safety and to prevent faults. It is also a requirement for certain Local and National Electric Codes (NEC). Please consult with NEC for more information on this subject regarding local regulations and suggestions.

• The recommended wire size for grounding this inverter is an 8 AWG copper wire.
• Connecting to ground must be done via the available grounding cables for house applications or to the metal frame of an RV for mobile home applications.

AC/DC Operation

Basic Connection
Below is a typical example of what the electrical system is like. Shore power also known as AC Input flows through the inverter-charger to provide AC power guarded by breakers or fuses while charging the battery bank. The same concept applies while under battery power, as the inverter will be powered by DC (battery) and then converted to AC while protected with battery specific fuses and breakers. The battery can be  charged utilizing solar panels in conjunction with a solar charger controller.

Auto Transfer Switch
AC Priority (Recommended)

When set to AC priority, you will draw from shore power and not the battery bank to  power the 110V appliances. When disconnected from shore power, DC power from thebattery bank/solar will be converted into AC.

• When shore power is connected, it will be utilized over the battery bank to power the inverter while simultaneously charging the battery bank this is also known as the bypass function. Charging can be turned off by setting Battery Type switch to 0 (See next page).
• When shore power is disconnected, the inverter automatically switches to solar/battery bank power in 5ms.
• When shore power is restored, the inverter will automatically switch the power source from battery bank to shore power in 5 ms.

DC Priority
When set to DC priority, the inverter will utilize the battery bank for electricity over shore power. When battery voltage gets too low, it will automatically switch to shore power if it is connected. Charging can be turned off by setting battery switch to 0 (See next page).

• AC loads will be powered by the battery with the inverter if battery voltage is higher than 11V.
• When battery voltage drops below 11V, the inverter automatically switches to shore power (if connected) and charges the batteries.
• When battery is charged to 13.5V, the inverter will automatically switch back to battery power.
• When shore power is not detectable and battery voltage is lower than 10V, the inverter will shut down. When shore power is detected again, the inverter will turn on automatically and switch to shore power and charge the battery or when battery is charged to 12V, inverter will automatically turn on and switch to battery power.

Battery Type Selections and Priority Switch
Different kinds of batteries have varying charging algorithms. In order to protect your power system, our inverter is designed to be suitable for a variety of different types of batteries. On the top of the inverter, you can choose the battery type to your needs using the Battery Type Dial and the Battery Type Settings Table below to ensure that your battery is with in optimal condition.

Using the Battery Type Dial:

• To move the dial use a small screwdriver, coin, or other at tool and insert it into the arrow shown on the left. Turn the screwdriver so that the arrow in the BAT Type Dial points to the desired Switch Setting shown below.

Battery Type Settings Table:

Using the Priority Switch:

• Use your fingernail, pen, or small enough object to change the switches to the desired priority.
  – Switch 1: Move to “ON” to set frequency to 60Hz. For 50Hz, set the switch back down (not usually used in the USA).
  – Switch 2: Move to “ON” to set priority to DC. For AC priority, set the switch back down (Recommended).

Alarms, Behavior, & Display

Alarm Indications

Fault| 2000W Model| 3000W Model| Audio Alarm Behavior| Alarm LED
---|---|---|---|---
Inverter Overload| 2200 – 2500W| 3300 – 3750W| Beeps every 1s after 14 min., and inverter shutoff after the 15th min.| None
 2500 – 3000W|  3750 – 4500W| Beeps every 1s, and inverter shutoff after 60s.
3000W| 4500W| Beeps every 1s, and inverter shutoff after 20s.
Low Battery Voltage|  Buzzer beeps every 5s.| ON
High Battery Voltage Buzzer|  beeps every 5s. Then inverter shutoff after 60s.| ON
Over-Temperature| When heat sink temperature goes over 221°F buzzer beeps every 5s.| Flashes

Fan Protection

Over Temperature Protection| When heat sink temperature goes over 221ºF, the inverter shuts down after 30 seconds.
---|---
Back-Feed Protection| Yes
Recover From Fault Shutoff| Restarts the inverter.

LCD Display
LCD Will Display as Follows:

Error Codes
Interpreting Faults
Faults can occur for a variety of reasons. When an error is detected the inverter charger will show a fault code. Use the fault code and reference the table below to troubleshoot the error. If the fault persists please feel free to contact us for support.

Fault Status Table:

Additional Support

Determining Battery Bank Size
Battery Bank — Size and Example
To select the correct battery bank size you must determine the amount of total watts (load) and how long the load needs to operate. This can vary depending on your needs, applications, and appliances.

1. Estimate Wattage (Load) — Appliances to be Powered
   NOTE: This is a general Running Watt guide. Be sure to verify the correct Power Consumption & Surge of your appliances.

2. Example for Determining Battery Sizes2
   Battery Size: The total Watt Hours (WH) determines the size of the battery.
   • A watt-hour is the Voltage (V) multiplied by the Current (Amps) that the battery can provide during a period of use known as Amp Hours (AH).
   • Using the equation below multiply the Volts (V) of your battery by the Amp Hours (AH) of each battery to determine total Watt Hours (WH).In this example we used one 12V 100Ah battery to determine its Watt Hours.
   (For more than one battery use: WH x the number of batteries)
   For an example of a rough estimate on appliance runtime, use the provided information above in conjunction with the example of 12V applications table on the next page.

3. Examples With 12V 100Ah Battery
   Example of Appliance RuntimesAPPLIANCES| RUNNING
   WATTS| ESTIMATED RUNTIME
   (100AH / 1280WH)| ESTIMATED RUNTIME
   (2 X 100AH / 2560WH)
   ---|---|---|---
   Lights| 60W| 21.3 Hrs| 42.6 Hrs
   Fan| 40W| 32 Hrs| 64 Hrs
   42” LED TV| 100W| 12.8 Hrs| 25.6 Hrs

Use the equation below to determine the amount of hours an appliance can run based on the battery WH and the appliances’ Watts:In this example we also used one 12V 100Ah battery (1280WH) & Lights at 60W.
(For a more accurate runtime use the Wattage stated on your appliances’ label.)

Determining Inverter Size & Use
Inverter – Size, Appliance Variables, & Surge
Our inverters are rated to handle specific surge or starting watts for large or heavy duty appliances. To select the appropriate inverter for your system you also need to take into consideration its Rated Continuous Power and Peak / Surge Power. For the best operation of your appliances you will need to understand Appliance Variables such as duty cycles or variable active running times, and Starting Surges.
Furthermore, you must also take into consideration the Inverters’ Idle Power Consumption and include this in your total power draw from your Battery Bank.

1. Selecting Inverter Size – Idle, Rated, and Surge Power
   Model| Idle Power Consumption| Rated Continuous Power| Peak / Surge Power
   ---|---|---|---
   IVOCH2KW| 60W| 2000W| 6000W
   IVOCH3KW| 90W| 3000W| 9000W
2. Appliance Variables
   Duty Cycles: All appliances have operation behaviors but most commonly run on a constant wattage consumption. Other appliances function on variables that change there power consumption. Variables can be environment temperature, specific conditions, set or automatic functions. These are known as Duty Cycles or Power Cycles which is the fraction of a period that the appliance is active. Simply put, a duty cycle is the ratio of the active time of an appliance in comparison to the total time period it is in use.
   Example of RV Appliances With Duty CyclesAPPLIANCES| RATED WATTS| EXAMPLE OF
   DUTY CYCLES| ESTIMATED ENERGY
   CONSUMPTION
   ---|---|---|---
   Refrigerator| 700W| 40%| 280W
   Heater| 1800W| 60%| 1080W
   AC| 1200W| 60%| 720W

*The Duty Cycle in this table is just an example and does not reflect the actual duty cycles of any appliance. Actual appliance duty cycles can sometimes be extremely varied and thus can only be estimated.
(For a more accurate runtime find the duty cycle or operation habits stated on your appliances’ label.)![EXPERTPOWER IVOCH3KW Pure Sine Wave Inverter Charger

• Duty Cycle](https://manuals.plus/wp-content/uploads/2023/12/EXPERTPOWER- IVOCH3KW-Pure-Sine-Wave-Inverter-Charger-Duty-Cycle.jpg)In this example we used the AC with 1200W and 60% Duty Cycle.
  To get a more accurate runtime you must take into consideration the efficiency of the inverter which is 90%. To do this, take the calculated Energy Consumption of your appliance and apply it to the equation below: NOTE: Efficiency of the inverter also needs to be considered which is 90% when inverting 12V to 110V.
  (The Inverter’s 90% efficiency is represented by “1.1” in the equation as Efficiency Rate.)

  3. Starting / Surge Watts
     Starting Surges: An initial surge of electrical power that lasts for less than a second but is necessary for appliance start up and operation. Starting surges can typically be found on appliances with motors or compressors, they are usually 2 to 3 times the appliance’s rated running watts.
     • Common appliances that have these surges and or intermittent run times are Air  Conditioners, Heaters, Refrigerators, Microwaves, etc…
     Example of RV Appliances Surge Watts**| APPLIANCE| RATED WATTS| SURGE WATTS**| *DUTY CYCLES
     ---|---|---|---|---
     RV Essentials| 4 Light Bulbs (75W)| 300| 300| 100%
     Electric Water Heater (6 Gal.)| 1440| 1440| 100%
     Fan| 200| 200| 100%
     Furnace Fan (1/3 HP)| 700| 1400| 100%
     RV Roof-Top AC (11,000 BTU)| 1010| 3030| 60%
     RV Roof-Top AC (13,500 BTU)| 1500| 4500| 60%
     RV Roof-Top AC (15,000 BTU)| 2000| 600| 60%
     Space Heater| 1800| 5400| 60%
     Water Pump| 60| 60| 100%
     Personal| Blow Drier (Hair)| 1250| 1250| 100%
     Electric Blanket| 100| 100| 50%
     Shaver| 35| 35| 100%
     Vacuum| 1100| 1100| 100%
     Kitchen| Blender| 350| 500| 100%
     Coffee Maker| 800| 800| 100%
     Crockpot| 250| 250| 100%
     Deep Fryer| 1200| 1200| 100%
     Electric Fry Pan| 1200| 1200| 100%
     Electric Grill| 1650| 1650| 100%
     Microwave| 800| 2400| 100%
     Toaster| 850| 850| 100%
     Refrigerator (4.8 cu ft)| 60| 180| 40%
     Refrigerator (8 cu ft)| 150| 450| 40%
     Entertainment| CD/DVD/Blu-ray Player| 50| 50| 100%
     Laptop| 20| 20| 100%
     Printer| 35| 35| 100%
     Satellite Dish & Receiver| 50| 50| 100%
     Stereo| 500| 500| 100%
     Television (19 in)| 30| 250| 100%
     Television (27 in)| 450| 450| 100%

*The Duty Cycle in this table is just an example and does not reflect the actual duty cycles of any appliance. Actual appliance duty cycles can sometimes be extremely varied and thus can only be estimated.

4. Calculate Your Appliances
   Use the table below to keep a record of your appliances energy consumption.

APPLIANCES| RATED WATTS| SURGE WATTS| *DUTY CYCLES| TIME PER DAY (HR)| ENERGY CONSUMPTION
(WH / DAY)
---|---|---|---|---|---
Example| TV| 100| 100| 100%| 2| 200
Fridge| 60| 120| 40%| 24| 576
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
TOTAL ENERGY CONSUMPTION PER DAY:|
(WH / DAY)

12V DC APPLIANCES:
Energy Consumption (WH/Day) = Rated Watts x Duty Cycles% x Time Per Day (Hr)
110V AC APPLIANCES:
Energy Consumption(WH/Day)= Rated Watts x 1.1 x Duty Cycles% x Time Per Day (Hr)
NOTE: Efficiency of the inverter also needs to be considered for 110V appliances.
(The Inverter’s 90% efficiency is represented by “1.1” in the equation as Efficiency Rate.)

Notes
………………………………………

FOR SUPPORT
Address: 6437 Alondra Blvd Paramount, CA 90723
Phone: 562-630-3002
Fax: 562-630-3006
Email: support@expertpower.us
Website: ExpertPower.us

References

• ExpertPower Direct | ExpertPower Direct

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