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Inverex AEROX 1.2KW, AEROX 3.2KW,

AEROX 2.2KW Manual
Manuals / Brands / Inverex Manuals / Inverter / AEROX 1.2KW / User manual / PDF

Contents
1 SAFETY INSTRUCTIONS
2 INTRODUCTION
2.1 Features
2.2 Basic System Architecture
2.3 Product Overview
3 INSTALLATION
3.1 Unpacking and Inspection
3.2 Preparation
3.3 Mounting the Unit
3.4 Battery Connection
3.5 AC Input/Output Connection
3.6 PV Connection
3.7 Final Assembly
3.8 Communication Connection
4 OPERATION
4.1 Power ON/OFF
4.2 Operation and Display Panel
4.3 LCD Display Icons
4.4 LCD Setting
4.5 Display Setting
4.6 Operating Mode Description
4.7 Battery Equalization Description
4.8 Fault Reference Code
4.9 Warning Indicator
5 SPECIFICATIONS
6 TROUBLE SHOOTING
6.1 Warning code 02 is displayed in the LCD
6.2 Unit shuts down automatically during startup process
6.3 No response after power on
6.4 Mains exist but the unit works in battery mode
6.5 Buzzer beeps continuously and red LED is on
7 APPROXIMATE BACK-UP TIME TABLE
SAFETY INSTRUCTIONS

This chapter contains important safety and operating instructions. Read and keep
this manual for future reference.

1. Before using the unit, read all instructions and cautionary markings on the unit, the
batteries and all appropriate sections of this manual.

2.
To reduce risk of injury, charge only deep-cycle lead acid type rechargeable
batteries.
Other types of batteries may burst, causing personal injury and damage.
 3.
Do not disassemble the unit. Take it to a qualified service center when service or
repair is required.
Incorrect re-assembly may result in a risk of electric shock or fire.

4. To reduce risk of electric shock, disconnect all wirings before attempting any
maintenance or cleaning. Turning off the unit will not reduce this risk.

5.
Only qualified personnel can install this device with battery.

6. NEVER charge a frozen battery.

7. For optimum operation of this inverter/charger, please follow required spec to select
appropriate cable size. It's very important to correctly operate this inverter/charger.

8. Be very cautious when working with metal tools on or around batteries. A potential
risk exists to drop a tool to spark or short circuit batteries or other electrical parts and
could cause an explosion.

9. Please strictly follow installation procedure when you want to disconnect AC or DC

terminals. Please refer to INSTALLATION section of this manual for the details.

10. One piece of 150A fuse is provided as over-current protection for the battery supply.

11. GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a

permanent grounded wiring system. Be sure to comply with local requirements and
regulation to install this inverter.

12. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains
when DC input short circuits.

13.
Only qualified service persons are able to service this device. If errors still persist
after following troubleshooting table, please send this inverter/charger back to local
dealer or service center for maintenance.

INTRODUCTION

This is a multi-function inverter/charger, combining functions of inverter, solar charger

and battery charger to offer uninterruptible power support with portable size. Its
comprehensive LCD display offers user-configurable and easy-accessible button
operation such as battery charging current, AC/solar charger priority, and acceptable
input voltage based on different applications.

Features

Pure sine wave inverter

 Configurable input voltage range for home appliances and personal computers via
LCD setting

Configurable battery charging current based on applications via LCD setting

Configurable AC/Solar Charger priority via LCD setting

Compatible to mains voltage or generator power

Auto restart while AC is recovering

Overload/ Over temperature/ short circuit protection

Smart battery charger design for optimized battery performance

Cold start function

Basic System Architecture

The following illustration shows basic application for this inverter/charger (See Figure
1). It also includes following devices to have a complete running system:

Generator or Utility.

PV modules

Consult with your system integrator for other possible system architectures depending
on your requirements.
This inverter can power all kinds of appliances in home or office environment, including
motor-type appliances such as tube light, fan, refrigerator and air conditioner.

Product Overview
 1. LCD display

2. Status indicator

3. Charging indicator

4. Fault indicator

5. Function buttons

6. Power on/off switch

7. AC input

8. AC output

9. PV input

10. Battery input

11. Fuse or Circuit breaker

12. USB communication port

13. RS-232 communication port

INSTALLATION

Unpacking and Inspection

Before installation, please inspect the unit. Be sure that nothing inside the package is
damaged. You should have received the following items inside of package:

The unit x 1

User manual x 1

Communication cable x 2

Software CD x 1

Battery cable x 1 (only for 1.2KW/2.2KW models)

Power cord x 1 (only for 1.2KW/2.2KW models)

Preparation

Before connecting all wirings, please take off bottom cover by removing the screws
(2pcs for 1.2KW/2.2KW, 4pcs for 3.2KW) as shown above.

Mounting the Unit

Consider the following points before selecting where to install:

Do not mount the inverter on flammable construction materials.

Mount on a solid surface

Install this inverter at eye level in order to allow the LCD display to be read at all
times.
 For proper air circulation to dissipate heat, allow a clearance of approx. 20 cm to the
side and approx. 50 cm above and below the unit.

The ambient temperature should be between 0°C and 55°C to ensure optimal
operation.

The recommended installation position is to be adhered to the wall vertically.

Be sure to keep other objects and surfaces as shown in the diagram to guarantee
sufficient heat dissipation and to have enough space for removing wires.

SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-

COMBUSTIBLE SURFACE ONLY.

Install the unit by screwing two screws. It's recommended to use M4 or M5 screws.

Battery Connection

For safety operation and regulation compliance, it's requested to install a separate DC
over-current protector or disconnect device between battery and inverter. It may not be
requested to have a disconnect device in some applications, however, it's still
requested to have over-current protection installed. Please refer to typical amperage in
below table as required fuse or breaker size.
All wiring must be performed by a qualified personnel.

It's very important for system safety and efficient operation to use appropriate cable for
battery connection. To reduce risk of injury, please use the proper recommended cable
as below.

Recommended battery cable size:

Terminal
Model Typical Amperage Wire Size Dimensions Torque Value
Cable mm2
D (mm) L (mm)
1.2KW 114A
1 x 4AWG 25 / / 2~ 3 Nm
2.2KW 104A
3.2KW 148A 1 x 2AWG 38 8.4 39.2 5Nm

Battery connection for 1.2KW/2.2KW:

Please follow below steps to implement battery connection:

1. Remove insulation sleeve 18 mm for positive and negative conductors.

2. Suggest to put bootlace ferrules on the end of positive and negative wires with a
proper crimping tool.

3. 1.2KW model supports 12VDC system and 2.2KW model supports 24VDC system.
Connect all battery packs as below chart. It's suggested to connect at least 100Ah
capacity battery.
4. Insert the battery wires flatly into battery connectors of inverter and make sure the
bolts are tightened with torque of 2 Nm in clockwise direction. Make sure polarity at
both the battery and the inverter/charge is correctly connected and conductors are
tightly screwed into the battery terminals.
Recommended tool: #2 Pozi Screwdriver

Battery connection for 3.2KVA:

Please follow below steps to implement battery connection:

1. Assemble battery ring terminal based on recommended battery cable and terminal
size.

2. Connect battery packs with 24VDC system. It's suggested to connect at least 100Ah
capacity battery.

3. Insert the ring terminal of battery cable flatly into battery connector of inverter and
make sure the bolts are tightened with torque of 5 Nm. Make sure the polarity at both
the battery and the inverter/charge is correctly connected and ring terminals are
tightly screwed to the battery terminals.

Shock Hazard
Installation must be performed with care due to high battery voltage in series.

Before making the final DC connection or closing DC breaker/disconnector, be sure

positive (+) must be connected to positive (+) and negative (-) must be connected to
negative (-).

AC Input/Output Connection
Before connecting to AC input power source, please install a separate AC breaker
between inverter and AC input power source. This will ensure the inverter can be
securely disconnected during maintenance and fully protected from over current of AC
input. The recommended spec of AC breaker is 10A for 1.2KW, 20A for 2.2KW and 32A
for 3.2KW.

There are two terminal blocks with "AC IN" and "AC OUT" markings. Please do NOT
mis-connect input and output connectors.

All wiring must be performed by a qualified personnel.

It's very important for system safety and efficient operation to use appropriate cable for
AC input connection. To reduce risk of injury, please use the proper recommended
cable size as below.

Suggested cable requirement for AC wires

Model Gauge Cable (mm2) Torque Value
1.2KW 16 AWG 1.5 0.6 Nm
2.2KW 14 AWG 2.5 0.6 Nm
3.2KW 12 AWG 4 1.2 Nm

Please follow below steps to implement AC input/output connection:

1. Before making AC input/output connection, be sure to open DC protector or

disconnector first.

2. Remove insulation sleeve 10mm for 5 conductors for 3.2K model and 7mm for 3
conductors for 1.2KW/2.2KW models.

3. For 1.2KW/2.2KW models, simply connect AC utility to AC input of the inverter with a
plug.
For 3.2KW models, insert AC input wires according to polarities indicated on terminal
block and tighten the terminal screws. Be sure to connect PE protective conductor (
) first.
→ Ground (yellow-green)
L → LINE (brown or black)
N → Neutral (blue)
 Be sure that AC power source is disconnected before attempting to hardwire it to
the unit.

4. Then, insert AC output wires according to polarities indicated on terminal block and
tighten terminal screws.
Be sure to connect PE protective conductor ( ) first.
→ Ground (yellow-green)
L → LINE (brown or black)
N → Neutral (blue)

5. Make sure the wires are securely connected.

Appliances such as air conditioner are required at least 2~3 minutes to restart because
it's required to have enough time to balance refrigerant gas inside of circuits. If a power
shortage occurs and recovers in a short time, it will cause damage to your connected
appliances. To prevent this kind of damage, please check manufacturer of air
conditioner if it's equipped with time-delay function before installation. Otherwise, this
inverter/charger will trig overload fault and cut off output to protect your appliance but
sometimes it still causes internal damage to the air conditioner.

PV Connection

Before connecting to PV modules, please install separately a DC circuit breaker

between inverter and PV modules.
It's very important for system safety and efficient operation to use appropriate cable for
PV module connection. To reduce risk of injury, please use the proper recommended
cable size as below.

Wire Size Cable (mm2) Torque value(max)

1 x 8AWG 10 1.6 Nm

When selecting proper PV modules, please be sure to consider below parameters:

1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit
voltage of inverter.

2. Open circuit Voltage (Voc) of PV modules should be higher than min. battery
voltage.

INVERTER MODEL 1.2KW 2.2KW 3.2KW

Max. PV Array Open Circuit Voltage 102Vdc
PV Array MPPT Voltage Range 15Vdc~80Vdc 30~80Vdc

Take 300Wp PV module as an example. After considering above two parameters, the
recommended module configurations listed as below table.

Maximum Power (Pmax) 300W For 1.2KW:

Max. Power Voltage Vmpp(V) 32V 2 sets in parallel
For 2.2KW:
Max. Power Current Impp(A) 9.4A
2 pieces in serial and 2 sets in parallel
Open Circuit Voltage Voc(V) 40V For 3.2KW:
Short Circuit Current Isc(A) 10A 2 pieces in serial and 3 sets in parallel

PV Module Wire Connection

Please follow below steps to implement PV module connection:

1. Remove insulation sleeve 10 mm for positive and negative conductors.

2. Suggest to put bootlace ferrules on the end of positive and negative wires with a
proper crimping tool.

3. Check correct polarity of wire connection from PV modules and PV input connectors.
Then, connect positive pole (+) of connection wire to positive pole (+) of PV input
connector. Connect negative pole (-) of connection wire to negative pole (-) of PV
 input connector. Screw two wires tightly in clockwise direction.
Recommended tool: 4mm blade screwdriver

Final Assembly

After connecting all wirings, please put bottom cover back by screwing the screws as
shown above.

Communication Connection

Please use supplied communication cable to connect to inverter and PC. Insert bundled
CD into a computer and follow on-screen instruction to install the monitoring software.
For the detailed software operation, please check user manual of software inside of CD.

OPERATION
Power ON/OFF

Once the unit has been properly installed and the batteries are connected well, simply
press On/Off switch (located on the button of the case) to turn on the unit.

Operation and Display Panel

The operation and display panel, shown in below chart, is on the front panel of the
inverter. It includes three indicators, four function keys and a LCD display, indicating the
operating status and input/output power information.

LED Indicator
LED Indicator Messages
Solid On Output is powered by utility in Line mode.
Green
Flashing Output is powered by battery or PV in battery mode.
Solid On Battery is fully charged.
Green
Flashing Battery is charging.
Solid On Fault occurs in the inverter.
Red
Flashing Warning condition occurs in the inverter.
Function Keys
Function Key Description
ESC To exit setting mode
SCROLL To go to next selection
ENTER To confirm the selection in setting mode or enter setting mode

LCD Display Icons

LCD Setting

After pressing and holding " " button for 3 seconds, the unit will enter setting mode.
Press " " button to select setting programs. And then, press " " button to confirm
the selection or " " button to exit.
Setting Programs:
Display Setting

The LCD display information will be switched in turns by pressing " " button. The
selectable information is switched as the following table in order.
Operating Mode Description

LCD
Operation mode Description
display

Charging
by utility
and PV
energy.

Standby mode Charging

Note: by utility.
*Standby mode: The inverter is not No output is supplied by the unit
turned on yet but at this time, the but it still can charge batteries.
inverter can charge battery without AC
output.
 Charging
by PV
energy.

No
charging.

Charging
by utility
and PV
energy.
Fault mode
Note:
*Fault mode: Errors are caused by PV energy and utility can
Charging
inside circuit error or external reasons charge batteries.
by utility.
such as over temperature, output short
circuited and so on.

Charging
by PV
energy.

No
charging.

Charging
by utility
and PV
energy.
The unit will provide output
power from the mains. It will
Line Mode
also charge the battery at line
mode. Charging
by utility.
 Power from
battery and
The unit will provide output PV energy.
Battery Mode power from battery and PV
power.

Power from
battery
only.

Battery Equalization Description

Equalization function is added into charge controller. It reverses the buildup of negative
chemical effects like stratification, a condition where acid concentration is greater at the
bottom of the battery than at the top. Equalization also helps to remove sulfate crystals
that might have built up on the plates. If left unchecked, this condition, called sulfation,
will reduce the overall capacity of the battery. Therefore, it's recommended to equalize
battery periodically.

How to Apply Equalization Function

You must enable battery equalization function in monitoring LCD setting program 30
first. Then, you may apply this function in device by either one of following methods:

1. Setting equalization interval in program 35.

2. Active equalization immediately in program 36.

When to Equalize
In float stage, when the setting equalization interval (battery equalization cycle) is
arrived, or equalization is active immediately, the controller will start to enter
Equalize stage.

Equalize charging time and timeout

In Equalize stage, the controller will supply power to charge battery as much as
possible until battery voltage raises to battery equalization voltage. Then, constant-
 voltage regulation is applied to maintain battery voltage at the battery equalization
voltage. The battery will remain in the Equalize stage until setting battery equalized
time is arrived.

However, in Equalize stage, when battery equalized time is expired and battery
voltage doesn't rise to battery equalization voltage point, the charge controller will
extend the battery equalized time until battery voltage achieves battery equalization
voltage. If battery voltage is still lower than battery equalization voltage when
battery equalized timeout setting is over, the charge controller will stop equalization
and return to float stage.

Fault Reference Code

Fault Icon
Fault Event
Code on

02 Over temperature

03 Battery voltage is too high

04 Battery voltage is too low

Output short circuited or over temperature is detected by internal

05
converter components.

06 Output voltage is abnormal.

07 Overload time out

08 Bus voltage is too high

09 Bus soft start failed

12 NTC temperature sensor on the heatsink is failed

Warning Indicator
Warning Icon
Warning Event Audible Alarm
Code flashing
1. No beep when temperature is in high
Temperature of inverter level. 2. Beep once every 0.5 second
02
inside is high when temperature is increased to close
to over-temperature protection.

03 Battery is over-charged Beep once every second

04 Low battery Beep once every second

07 Overload Beep once every 0.5 second

10 Output power derating Beep twice every 3 seconds

Battery equalization None

Communication error
20 between MPPT SCC None
board and main board
MPPT solar charger
board cannot match with
21 main board even None
communication is
normal.

SPECIFICATIONS

Table 1 Line Mode Specifications

INVERTER MODEL 1.2KW 2.2KW 3.2KW
Input Voltage Waveform Sinusoidal (utility or generator)
Nominal Input Voltage 230Vac
170Vac± 7V (UPS);
Low Loss Voltage
90Vac± 7V (Appliances)
180Vac± 7V (UPS);
Low Loss Return Voltage
100Vac± 7V (Appliances)
High Loss Voltage 280Vac± 7V
High Loss Return Voltage 270Vac± 7V
Max AC Input Voltage 300Vac
Nominal Input Frequency 50Hz / 60Hz (Auto detection)
Low Loss Frequency 40± 1Hz
Low Loss Return Frequency 42± 1Hz
High Loss Frequency 65± 1Hz
High Loss Return Frequency 63± 1Hz
Output Short Circuit Protection Circuit Breaker
>95% ( Rated R load, battery full
Efficiency (Line Mode)
charged )
10ms typical (UPS);
Transfer Time
20ms typical (Appliances)

Output power derating:

When AC input voltage drops to 170V, the output
power will be derated.

Table 2 Inverter Mode Specifications

INVERTER MODEL 1.2KW 2.2KW 3.2KW
Rated Output Power 1.2KVA/1.2KW 2.2KVA/2.2KW 3.2KVA/3.2KW
Output Voltage Waveform Pure Sine Wave
Output Voltage Regulation 230Vac± 5%
Output Frequency 50Hz
Peak Efficiency 93%
Overload Protection 5s@≥130% load; 10s@105%~130% load
Surge Capacity 2* rated power for 5 seconds
Nominal DC Input Voltage 12Vdc 24Vdc 24Vdc
Cold Start Voltage 11.5Vdc 23.0Vdc 23.0Vdc
@ load <
11.5Vdc 23.0Vdc 23.0Vdc
Low DC Warning 50%
Voltage @ load ≥
11.0Vdc 22.0Vdc 22.0Vdc
50%
@ load <
11.7Vdc 23.5Vdc 23.5Vdc
Low DC Warning 50%
Return Voltage @ load ≥
11.5Vdc 23.0Vdc 23.0Vdc
50%
@ load <
10.7Vdc 21.5Vdc 21.5Vdc
50%
Low DC Cut-off Voltage
@ load ≥
10.5Vdc 21.0Vdc 21.0Vdc
50%
High DC Recovery Voltage 15Vdc 30Vdc 32Vdc
High DC Cut-off Voltage 16Vdc 31Vdc 33Vdc
No Load Power Consumption <25W

Table 3 Charge Mode Specifications

Utility Charging Mode
INVERTER MODEL 1.2KW 2.2KW 3.2KW
Charging Algorithm 3-Step
20Amp 25Amp (@VI/P
AC Charging Current (Max)
(@VI/P=230Vac) =230Vac)
Flooded
14.6 29.2
Bulk Charging Battery
Voltage AGM / Gel
14.1 28.2
Battery
Floating Charging Voltage 13.5Vdc 27Vdc

Charging Curve

MPPT Solar Charging Mode

INVERTER MODEL 1.2KW 2.2KW 3.2KW
Max. PV Array Power 700W 1400W 1800W
Charging Current 50Amp 50Amp 65Amp
PV Array MPPT Voltage Range 15Vdc~80Vdc 30~80Vdc
Max. PV Array Open Circuit
102Vdc
Voltage
Max Charging Current
60Amp 80Amp
(AC charger plus solar charger)

Table 4 General Specifications

INVERTER MODEL 1.2KW 2.2KW 3.2KW
Operating Temperature
-10°C to 50°C
Range
Storage temperature -15°C~ 60°C
Humidity 5% to 95% Relative Humidity (Non-condensing)
103 x 225 x 103 x 245 x 118.3 x 285 x
Dimension (D*W*H), mm
320 330 360.4
Net Weight, kg 4.6 5.3 7.6

TROUBLE SHOOTING

Explanation / Possible
Problem LCD/LED/Buzzer What to do
cause
No beep but it
shows warning
1. Remove the
Warning code 02 in the loads.
code 02 is LCD.
Temperature of inverter inside 2. Reduce the
displayed in Beep once every is high.
0.5 second and it operation
the LCD
shows warning environment
temperature.
code 02 in the
LCD.
Unit shuts
down LCD/LEDs and 1. Re-charge
automatically buzzer will be battery.
The battery voltage is too low
during active for 3
(<1.91V/Cell) 2. Replace
startup seconds and then
complete off. battery.
process

1. Contact repair
center for
replacing the
No response 1. The battery voltage is far fuse.
after power No indication. too low. (<1.4V/Cell)
on 2. Re-charge
2. Internal fuse tripped. battery.

3. Replace
battery.
 Input voltage is
Check if AC
displayed as 0 on
breaker is tripped
the LCD and Input protector is tripped
and AC wiring is
green LED is
connected well.
flashing.

1. Check if AC
wires are too
thin and/or too
Mains exist long.
but the unit
works in 2. Check if
Green LED is Insufficient quality of AC generator (if
battery mode flashing. power. (Shore or Generator) applied) is
working well or
if input voltage
range setting is
correct. (UPS →
Appliance)

Change output
Green LED is Set "Solar First" as the priority
source priority to
flashing. of output source.
Utility first.
When the unit
is turned on,
Check if battery
internal relay LCD display and
Battery is disconnected. wires are
is switched on LEDs are flashing
connected well.
and off
repeatedly
Reduce the
Overload error. The inverter is
connected load by
overload 105% and time is
switching off some
up.
equipment.

Fault code 07 If PV input voltage is higher

Reduce the
than specification, the output
number of PV
power will be derated. At this
modules in series
time, if connected loads are
or the connected
higher than derated output
load.
power, it will cause overload.
Check if wiring is
connected well
Output short circuited.
and remove
abnormal load.
Fault code 05
Buzzer Temperature of internal Check whether the
beeps converter component is over air flow of the unit
continuously 120°C. is blocked or
and red LED whether the
Internal temperature of ambient
is on Fault code 02 inverter component is over temperature is too
100°C. high.
Return to repair
Battery is over-charged.
center.

Fault code 03 Check if spec and

The battery voltage is too quantity of
high. batteries are meet
requirements.

1. Reduce the
Output abnormal (Inverter connected load.
Fault code 06 voltage below than 190Vac or
is higher than 260Vac) 2. Return to repair
center

Return to repair
Fault code 08/09 Internal components failed.
center.

APPROXIMATE BACK-UP TIME TABLE

Model Load Backup Time @ 12Vdc 100Ah Backup Time @ 12Vdc 200Ah
(VA) (min) (min)
100 618 1235
200 259 594
300 155 396
400 109 271
500 87 210
1.2KW 600 65 177
700 57 139
800 49 109
900 43 96
1000 38 85
1200 26 71
200 587 1235
400 256 587
 600 155 393
800 109 263
1000 87 210
2.2KW 1200 65 177
1400 56 139
1600 50 109
1800 43 96
2000 31 85
2200 28 78
300 393 843
600 155 393
900 95 233
1200 72 157
1500 52 127
3.2KW 1800 44 98
2100 30 84
2400 26 73
2700 23 57
3000 20 51
3200 14 47

Note: Backup time depends on the quality of the battery, age of battery and type of
battery.
Specifications of batteries may vary depending on different manufacturers.