Expert Power IVOCH2KW User manual

For Models:
IVOCH2KW / IVOCH3KW
Pure Sine Wave 2000W/3000W
Inverter-Charger
OWNER’S MANUAL
110V
12V

Warning
1) General Information
Product Overview
2) Introduction
3) Diagram
4) Technical Specs
5) Top Panel Overview
Wiring Guide
6) AC Wiring Connection
7) DC Wiring Connection
8) Grounding
AC/DC Operation
9) Basic Connection
10) Auto Transfer Switch
Alarms, Behavior, & Display
11) Alarms & Protections
12) LCD Display
13) Error Codes
Additional Support
14) Determining Battery Bank Size
15) Determining Inverter Size & Use
Pg. 2
Pg. 3
Pg. 4
Pg. 5 & 6
Pg. 6
Pg. 7
Pg. 7 & 8
Pg. 8
Pg. 9
Pg. 9 - 11
Pg. 12
Pg. 13
Pg. 14
Pg. 15 & 16
Pg. 16 - 20
Pg. 1
Table of Contents

Safety Information and Warnings
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%). Conrm 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. Conrm if the inverter can be connected with existing wiring. The AWG rating
should be sufcient 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.
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.
Pg. 2
WARNING
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.
PLEASE READ INSTRUCTIONS BEFORE CONTINUING
General Information

Introduction
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 efciency (90%〜98%)
• Intelligent CPU management
• Latest inverter technology
• Best electric components
ExpertPower 12V Inverter-Charger
Applications
Pg. 3
Product Overview
Home Power Tools
Office Equipment
Household Appliances
Kitchen Appliances
Industrial Equipment
Home Entertainment
Circular saws, drills, grinders, sanders, buffers, air
compressors, weed and hedge trimmers.
Computers, phones, monitors, printers, scanners, 3D
printers, fax machines, internet and Wi-Fi modems.
Vacuum cleaners, fans, clippers, electric shavers,
sewing machines, lights, washers and dryers.
Coffee makers, blenders, ice makers, toasters, electric
stoves, dish washers, refrigerators, and water pumps.
Metal halide lamps, high-pressure sodium lamp, air
compressors, and ventilation systems.
Televisions, blue-ray players, gaming consoles, stereos,
musical instruments, and satellite TV receivers.

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

Technical Specifications
Pg. 5
Rated Output Voltage
Output Voltage Range
Nominal Output Frequency
Efficiency
Safety Certifications
Communication Port
Cooling Activation
Operating Temperature Range
Storage Temperature Range
Operating Humidity Range
Noise
110Vac
±10% rms
50 / 60 ± 0.3Hz
>90%
CE / EMC / UL
RS232
Fan Activates According to Temperature Variations
32°F to 140°F
5°F to 140°F
5% to 95%
Max 60dB
Low Battery Alarm
Low DC Input Voltage Auto Shutoff
Low DC Input Voltage Recovery
10.5Vdc ± 0.3Vdc
10.0Vdc ± 0.3Vdc
12.0Vdc ± 0.3Vdc
High DC Input Voltage Auto Shutoff 16Vdc ± 0.3Vdc
High DC Input Voltage Recovery 15.5Vdc ± 0.3Vdc
Inverter
Overload
2200 - 2500W Inverter shutoff after 15
min.
2500 - 3000W Inverter shutoff after 60s.
3000W Inverter shutoff after 20s.
3300 - 3750W
3750 - 4500W
4500W
Behavior
2000W Model 3000W Model
≥98%
Pure Sine Wave
AC 75V to 135V
110Vac
92Vac ± 4%
97Vac ± 4%
127Vac ± 4%
122Vac ± 4%
50Hz / 60Hz (Auto Detect)
Pure Sine Wave
<5ms
<5ms
30A
Efficiency
Input Wave Type
Input Voltage Range
Nominal Input Voltage
Low Voltage Shutoff
Low Voltage Recovery
Over Voltage Shutoff
Over Voltage Recovery
Nominal Input Frequency
Output Wave Type
Transfer Time (AC to DC)
Transfer Time (DC to AC)
Automatic Transfer Switch
Inverter Specifications
Inverter Safety Specifications
AC Bypass Specifications
No Load / Idle Consumption 60W 90W
2000W Model 3000W Model

Pg. 6
2000W Model 3000W Model
40A 60A
According to the battery type
Circuit breaker
Charging Current
Theoretical Charge Voltage
Charging Circuit Protection
Charger Specifications
Top Panel Overview
Panel Components
AC Input LED light GREEN when shore power is connected.
AC Input
Inverter LED lights YELLOW when it is active.
Inverter
Charger LED lights GREEN when charging.
Charger
Alarm LED lights RED when fault is detected.
Alarm
Battery Type selector 0-9 (See Pg. 11).
Battery Type
Frequency Selector (See Pg. 11).
Priority Switch
SWITCH #1
SWITCH #2 AC/DC Priority Selector (See Pg. 11).
Switch to the next page on the LCD display.
Next Page

Pg. 7
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.
Wiring Guide
DC Wiring Connection
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.
Cable Size, Material, and Safety
Model
Wire Gauge / Min
Battery Voltage Fuse Size
0~3 ft 3~16 ft
2000W 12 Vdc
12 Vdc
300A
400A
0 AWG 3/0 AWG
3000W 3/0 AWG 4/0 AWG
AC Wiring Connection
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.
110V Single Phase
•Slightly unscrew the rst 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.
AC Terminal Block Wiring:
AC INPUT WIRE AC OUTPUT WIRE
SHORE POWER
AC APPLIANCES
AC BREAKER BOX
AC INPUT AC OUTPUT
110V Connection Guide
Live / Hot Neutral Earth / Ground

Connecting Battery Bank
Pg. 8
•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.
•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 remove
both washers.
Grounding Your Inverter
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.
Grounding Your System
•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.
•Attach the Battery Pack Cables to the
appropriate terminal, place washers
over the cable, and screw the bolt
back on rmly.
•Return the protective plastic cover and
fasten it back on with the plastic screw.

Basic Connection
Auto Transfer Switch
Pg. 9
Charging
&
Inverting
Inverter Charger
With
Transfer Switch
AC Breaker Box AC Load
Solar Panel
Solar Charge
Controller 12V Battery
Shore Power
DC Fuse Block DC Load
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 the
battery bank/solar will be converted into AC.
Below is a typical example of what the electrical system is like. Shore power also
known as AC Input ows 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 convert-
ed to AC while protected with battery specic fuses and breakers. The battery can be
charged utilizing solar panels in conjunction with a solar charger controller.
Inverter Charger
With
Transfer Switch
AC Breaker Box AC Load
12V Battery
Shore Power
DC Fuse Block DC Load
Solar Panel
Solar Charge
Controller
Charging
Inverting
Inverter Charger
With
Transfer Switch
AC Breaker Box AC Load
12V Battery DC Fuse Block DC Load
Solar Panel
Solar Charge
Controller
When shore power is CONNECTED
When shore power is DISCONNECTED
AC Priority (Recommended)
AC/DC Operation
•When shore power is connected, it will be utilized over the battery bank to power