LIFE SOLAR LSH5004826 User manual

HYBRID SOLAR INVERTER/CHARGER
3KVA 120Vac
USER MANUAL
Model LSH5004826

Table Of Contents
ABOUT THIS MANUAL....................................................................................................................................................1
Purpose............................................................................................................................................................................. 1
Scope.................................................................................................................................................................................1
SAFETY INSTRUCTIONS............................................................................................................................................... 1
INTRODUCTION...............................................................................................................................................................2
Features............................................................................................................................................................................ 2
Basic System Architecture..............................................................................................................................................2
Product Overview............................................................................................................................................................ 3
INSTALLATION.................................................................................................................................................................4
Unpacking and Inspection..............................................................................................................................................4
Preparation....................................................................................................................................................................... 4
Mounting the Unit............................................................................................................................................................4
Battery Connection..........................................................................................................................................................5
AC Input/Output Connection......................................................................................................................................... 6
PV Connection..................................................................................................................................................................8
Final Assembly................................................................................................................................................................. 9
Dry Contact Signal........................................................................................................................................................ 10
OPERATION.................................................................................................................................................................... 11
Power ON/OFF............................................................................................................................................................... 11
Operation and Display Panel....................................................................................................................................... 11
LCD Display Icons......................................................................................................................................................... 12
LCD Setting.................................................................................................................................................................... 14
Display Setting...............................................................................................................................................................23
Operating Mode Description........................................................................................................................................ 26
Fault Reference Code................................................................................................................................................... 29
Warning Indicator......................................................................................................................................................... 30
BATTERY EQUALIZATION..........................................................................................................................................31
SETTING FOR LITHIUM BATTERY.......................................................................................................................... 33
SPECIFICATIONS..........................................................................................................................................................38
Table 1 Line Mode Specifications................................................................................................................................38
Table 2 Inverter Mode Specifications.........................................................................................................................39
Table 3 Charge Mode Specifications.......................................................................................................................... 40
Table 4 General Specifications.................................................................................................................................... 40
TROUBLE SHOOTING.................................................................................................................................................. 41
Parallel Installation Guide........................................................................................................................................ 42
1. Instruction................................................................................................................................................................. 42
2. Package Contents..................................................................................................................................................... 42
3. Mounting the Unit.....................................................................................................................................................42
4. Wiring Connection.................................................................................................................................................... 43
5. Parallel Operation in Single phase......................................................................................................................... 45
6. Support 3-phase equipment................................................................................................................................... 48
7. Support split phase...................................................................................................................................................50
8. PV Connection........................................................................................................................................................... 51
9. LCD Setting and Display.......................................................................................................................................... 52
10. Commissioning........................................................................................................................................................54
11. Trouble shooting.....................................................................................................................................................55

1
ABOUT THIS MANUAL
Purpose
This manual describes the assembly, installation, operation and troubleshooting of this unit. Please read
this manual carefully before installations and operations. Keep this manual for future reference.
Scope
This manual provides safety and installation guidelines as well as information on tools and wiring.
SAFETY INSTRUCTIONS
WARNING: 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．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.
3．To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning.
Turning off the unit will not reduce this risk.
4．CAUTION – Only qualified personnel can install this device with battery.
5．NEVER charge a frozen battery.
6．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.
7．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.
8．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.
9．Fuse is provided as over-current protection for the battery supply.
10．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.
11．NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input
short circuits.
12．Warning!! 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.

2
INTRODUCTION
This is a multi-function inverter/charger, combining functions of inverter, MPPT 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

Inverter running without battery

Built-in MPPT solar controller
 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. It also includes following devices to
have a complete running system:

Generator or Utility.

PV modules (option)
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.
Figure 1 Hybrid Power System

3
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. Circuit breaker
12. RS232 communication port
13. Parallel communication port
(only for parallel model)
14. Dry contact (Optional)
15. USB communication port
16. RS485 communication port
17. Grounding
NOTE: For parallel model installation and operation, please check the parallel installation guide for the details.

4
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
Preparation
Before connecting all wirings, please take off bottom cover by removing two screws as shown below.
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.
 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 right 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.
IMPORTANT!
The installation location must be free from
dirt and dust and completely waterproof.
Failure to adhere to these installation
guidelines will void the warranty.
Outdoor installation is prohibited.

5
Install the unit by screwing three screws. It’s recommended to use M4 or M5 screws.
Battery Connection
CAUTION: 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.
Stripping Length:
WARNING! All wiring must be performed by a qualified personnel.
WARNING! 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 、stripping length(L2) and tinning length(L1)
as below.
Recommended battery cable 、stripping length (L2) and tinning length(L1):
Model
Maximum
Amperage
Battery
capacity
Wire Size
Cable
mm2
L1
(mm)
L 2
(mm)
Torque
value
3KVA
71A
100AH
4AWG
22
3
18
2~ 3 Nm
Please follow below steps to implement battery connection:
1. Remove insulation sleeve 18 mm for positive and negative cables based on recommended stripping
length.
2. Connect all battery packs as units requires. It’s suggested to use recommended battery capacity.
3. Insert battery cable flatly into battery connector of inverter and make sure the bolts are tightened
with torque of 2-3 Nm. Make sure polarity at both the battery and the inverter/charge is correctly
connected and battery cables are tightly screwed to the battery connector.

6
WARNING: Shock Hazard
Installation must be performed with care due to high battery voltage in series.
CAUTION!! Do not place anything between the flat part of the inverter terminal Otherwise,
overheating may occur.
CAUTION!! Do not apply anti-oxidant substance on the terminals before terminals are
connected tightly.
CAUTION!! 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
CAUTION!! 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 50A.
CAUTION!! There are two terminal blocks with “IN” and “OUT” markings. Please do NOT mis-connect input
and output connectors.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! 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
Torque Value
3KVA
10AWG
1.4~ 1.6Nm

7
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 six conductors. And shorten phase L and neutral conductor N 3 mm.
3. 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)
WARNING:
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)
Note:Important
When the inverter is working in battery mode or standby mode, neutral of output is connected to
grounding of AC output.
When the inverter is working in AC mode, neutral of output is disconnected to grounding of AC
output and connected to neural of AC input.
5. Make sure the wires are securely connected.
CAUTION: Important
Be sure to connect AC wires with correct polarity. If L and N wires are connected reversely, it may cause
utility short-circuited when these inverters are worked in parallel operation.
CAUTION: 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.

8
PV Connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter
and PV modules.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It'’ 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.
Model
Typical Amperage
Cable Size
Torque
3KVA
18A
12 AWG
1.4~1.6 Nm
PV Module Selection:
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.
Solar Charging Mode
INVERTER MODEL
3KVA
Max. PV Array Open Circuit Voltage
500DC
PV Array MPPT Voltage Range
120VDC~450VDC
Take the 330Wp PV module as an example. After considering above two parameters, the recommended module
configurations are listed in the table below.
Solar Panel Spec.
(reference)
- 330Wp
- Vmp: 33.25Vdc
- Imp: 9.925A
- Voc: 40.35Vdc
- Isc: 10.79A
- Cells: 60
SOLAR INPUT
Q'ty of
panels
Total input
power
Inverter
Model
Min in serial: 6 pcs, max. in serial: 12 pcs
6 pcs in serial
6 pcs
1980W
3KVA
10 pcs in serial
10 pcs
3300W
3KVA
12 pcs in serial
12 pcs
3960W
3KVA
6 pieces in serial and 2 sets in parallel
12 pcs
3960W
3KVA
8 pieces in serial and 2 sets in parallel
16 pcs
5280W
3KVA

9
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. Check correct polarity of connection cable from PV modules and
PV input connectors. Then, connect positive pole (+) of connection cable
to positive pole (+) of PV input connector. Connect negative pole (-) of
connection cable to negative pole (-) of PV input connector.
3. Make sure the wires are securely connected.
Final Assembly
After connecting all wirings, please put bottom cover back by screwing two screws as shown below.

10
Dry Contact Signal
There is one dry contact (3A/250VAC) available on the rear panel. It could be used to deliver signal to external
device when battery voltage reaches warning level.
Unit Status
Condition
Dry contact port:
NC & C
NO & C
Power Off
Unit is off and no output is powered.
Close
Open
Power On
Output is powered from Utility.
Close
Open
Output is
powered
from
Battery or
Solar.
Program 01
set as Utility
Battery voltage < Low DC warning
voltage
Open
Close
Battery voltage > Setting value in
Program 13 or battery charging
reaches floating stage
Close
Open
Program 01
is set as
SBU or SUB
or Solar
first
Battery voltage < Setting value in
Program 12
Open
Close
Battery voltage > Setting value in
Program 13 or battery charging
reaches floating stage
Close
Open

11
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.
LCD display
LED indicators
Function keys
LED Indicator
LED Indicator
Messages
Green
Solid On
Output is powered by utility in Line mode.
Flashing
Output is powered by battery or PV in battery mode.
Green
Solid On
Battery is fully charged.
Flashing
Battery is charging.
Red
Solid On
Fault occurs in the inverter.
Flashing
Warning condition occurs in the inverter.
Function Keys
Function Key
Description
ESC
To exit setting mode
UP
To go to previous selection
DOWN
To go to next selection
ENTER
To confirm the selection in setting mode or enter setting mode

12
LCD Display Icons
Icon
Function description
Input Source Information
Indicates the AC input.
Indicates the PV input
Indicate input voltage, input frequency, PV voltage, battery voltage and
charger current.
Configuration Program and Fault Information
Indicates the setting programs.
Indicates the warning and fault codes.
Warning: flashing with warning code.
Fault: lighting with fault code
Output Information
Indicate output voltage, output frequency, load percent, load in VA, load in
Watt and discharging current.
Battery Information
Indicates battery level by 0-24%, 25-49%, 50-74% and 75-100% in battery
mode and charging status in line mode.

13
Load Information
Indicates overload.
Indicates the load level by 0-24%, 25-49%, 50-74% and 75-100%.
0%~24%
25%~49%
50%~74%
75%~100%
Mode Operation Information
Indicates unit connects to the mains.
Indicates unit connects to the PV panel.
Indicates load is supplied by utility power.
Indicates the utility charger circuit is working.
Indicates the DC/AC inverter circuit is working.
Mute Operation
Indicates unit alarm is disabled.

14
LCD Setting
After pressing and holding ENTER button for 3 seconds, the unit will enter setting mode. Press “UP” or “DOWN”
button to select setting programs. And then, press “ENTER” button to confirm the selection or ESC button to
exit.
Setting Programs:
Program
Description
Selectable option
01
Output source priority: To
configure load power
source priority
Solar first
Solar energy provides power to
the loads as first priority.
If solar energy is not sufficient to
power all connected loads,
battery energy will supply power
the loads at the same time.
Utility provides power to the loads
only when any one condition
happens:
- Solar energy is not available
- Battery voltage drops to either
low-level warning voltage or the
setting point in program 12.
Utility first (default)
Utility will provide power to the
loads as first priority.
Solar and battery energy will
provide power to the loads only
when utility power is not
available.
SBU priority
Solar energy provides power to
the loads as first priority.
If solar energy is not sufficient to
power all connected loads, battery
energy will supply power to the
loads at the same time.
Utility provides power to the loads
only when battery voltage drops to
either low-level warning voltage or
the setting point in program 12.
SUB priority
Solar energy is charged first and
then power to the loads.
If solar energy is not sufficient to
power all connected loads, Utility
energy will supply power to the
loads at the same time.

15
02
Maximum charging
current: To configure total
charging current for solar
and utility chargers.
(Max. charging current
= utility charging
current + solar
charging current)
10A
20A
30A
40A
50A
60A (default)
70A
80A
03
AC input voltage range
Appliances (default)
If selected, acceptable AC input
voltage range will be within
90-280VAC.
UPS
If selected, acceptable AC input
voltage range will be
within 170-280VAC.
Generator
If selected, acceptable AC input
voltage range will be within 170-
280VAC and compatible with
generators.
Note: Because generators are
unstable, maybe the output of
inverter will be unstable too.
04
Power saving mode
enable/disable
Saving mode disable
(default)
If disabled, no matter connected
load is low or high, the on/off
status of inverter output will not be
effected.
Saving mode enable
If enabled, the output of inverter
will
be off when connected load is
pretty low or not detected.
05
Battery type
AGM (default)
Flooded
User-Defined
If “User-Defined” is selected,
battery charge voltage and low
DC cut-off voltage can be set up
in program 26,
27 and 29.
06
Auto restart when overload
occurs
Restart disable (default)
Restart enable
07
Auto restart when over
temperature occurs
Restart disable (default)
Restart enable

16
08
Output voltage
110V
120V (default)
115V
09
Output frequency
50Hz (default)
60Hz
10
Auto bypass
When selecting “auto”, if
the mains power is normal,
it will automatically bypass,
even if the switch is off.
manual(default)
auto
11
Maximum utility charging
current
2A
10A
20A
30A (default)
40A
50A
60A
70A
80A
12
Setting voltage point
back to utility source
when selecting “SBU
priority” or “Solar first” in
program 01.
Available options in 48V models:
Setting range is from 44.0V to 57.2V for 48v model, but the
setting value must be less than the value of program13.
44V
45V
46V (default)
47V
48V
49V
50V
51V
52V
53V
54V
55V

17
Available options in 24V models:
Setting range is from 22.0V to 28.6V for 24v model, but the
setting value must be less than the value of program13.
22 V
23V (default)
24 V
25 V
26V
27 V
13
Setting voltage point back
to battery mode when
selecting “SBU priority” or
“Solar first” in program
01.
Available options in 48V models:
Setting range is from 48V to full (the value of program26-
0.4V), but the setting value must be more than the value of
program12.
Battery fully charged
(default)
48V
49V
50V
51V
52V
53V
54V
55V
56V
57V
58V
59V
60V
61V
62V