LIVOLTEK GT1-1K6S1 User manual

The copyright of this munual belongs to Hangzhou Livoltek Power Co., td. Allrights
Copy Declaration
USER MANUAL
GT1 1.6K-10K
www.livoltek.com
1418-35 Moganshan Road, Hangzhou, 310011, China
[email protected]
reserved. All rights reserved. Without the written permission of the company,
Any unit or individual shall not extract or reproduce part or all of the contents of this
document, and shall not transmit it in any form. Ver.03
L

Table of Contents
1. About This Manual................................................................ 1
1.1 Scope .................................................................
1
1.2 Intended Audience ..............................................
1
1.3 Symbols Used .....................................................
1
1.4 How to use this manual .......................................
1
2. Safety .................................................................................
2
2.1 Product Description ............................................
2
2.2 Important Safety Instructions ...............................
2
2.3 Symbol on the Type Label
...................................
4
4. Scope of Delivery ..............................................................
10
3. Product Overview ................................................................
5
3.1 View of the Inverter ............................................
5
3.2 Dimension ........................................................
6
5. Mechanical Mounting .......................................................
12
5.1 Requirements for Mounting
.............................. 12
5.2 Mounting Instructions ...................................... 17
6. Electrical Connection ........................................................
18
6.1 PV Connection ................................................
19
6.2 Grid Output Connection ..................................
22
6.5 Wi-Fi Connection ............................................ 32
7. System Operation ............................................................. 36
7.1 Powering ON the Inverter ................................ 36
7.2 Powering OFF the Inverter ............................... 36
7.3 LEDs and Graphical Display ............................ 37
9. Troubleshooting ............................................................... 41
11. Dis c la i m e r........................................................................
6.3  ............................ 26
6.4  ......................................... 31
Earth Connection
Communication Connection
3.3 Terminal of the Inverter
.......................................
7
          ..............................................
9
3.4 System Dimension
12. Warranty Card Registration...............................................
8. Communication Mode Descript i o n .................................... 39
1 0 . Technical Data.................................................................
6.7 Installation Verication .................................... 35
6.6 AFCI (optional) ............................................... 34
45
51
53

1. About This Manual
1.1 Scope
This manual is valid for on-grid Inverter:
GT1-1K6S1 GT1-2K2S1 GT1-3KS1 GT1-3K3S1
GT1-3K6D1 GT1-4KD1 GT1-4K6D1 GT1-5KD1 GT1-6KD1
1.2 Intended Audience
The manual is intended for photovoltaic (PV) inverter operating personnel and
qualified electrical technicians. Any electrical installation and maintenance on
this inverter must be performed by qualied electricians by professional electrical
personnel who has obtained the license from local authorities.
1.3 Symbols Used
Safety instructions will be highlighted with the following symbols. These
important instructions must be followed during installation, operation and
maintenance of the inverter.
Symbol Description
Indicates a hazard with a high level of risk that, if not
avoided, will result in death or serious injury.
Indicates a hazard with a medium level of risk that, if
not avoided, could result in death or serious injury.
Indicates a hazard with a low level of risk that, if not
avoided, could result in minor or moderate injury.
Indicates a situation that, if not avoided, could result in
equipment or property damage.
1.4 How to use this manual
Read the manual and other related documents before performing any operation
on the inverter. Documents must be stored carefully and be available at all times.
The information in this manual is subject to change without notice. Please check
www.livoltek.com for more information.
1
GT1-7KT1 GT1-8KT1 GT1-9KT1 GT1-10KT1

2.2 Important Safety Instructions
The safety instructions in this manual cannot cover all the precautions that
should be followed. Perform operations considering actual onsite
conditions. LIVOLTEK shall not be held liable for any damage caused by
violation of the safety instructions in this manual.
2.2.1 Personnel Safety
• The inverter must be installed, electrically connected, operated and
maintained by specially trained technician;
• The qualied technician must be familiar with the safety regulations of
electrical system, working process of PV power generation system, and
standards of local power grid;
• The technician must read through this User Manual carefully before
any operations.
2. Safety
2.1 Product Description
4
2.2.2 Inverter Protection
Do not disconnect the PV connectors when the inverter is running.
Ensure that there is no voltage or current before installing or disconnecting any
connectors.
All safety instructions, warning labels, and nameplate on the inverter should
not be removed or covered.
Do not touch any hot parts (such as the heat sink) during operation.
As soon as receiving the inverter please check if it is damaged during its
transportation. If yes, please contact your dealer immediately.
Only qualied personnel can change the country settings.
• Adequate ventilation must be provided for inverter installation location
Mount the inverter in vertical direction, and ensure that no objects block the
heat dissipation
LIVOLTEKGT1Series on-grid inverter, ideal for home, business and remote
locations. The inverter generates renewab le electricity from solar energy,
and provides Pure Sine Wave AC output for connected equipment.
Please read andfollowalltheinstructionsandcautionsontheinverterand
this user manualduringinstallation,operationormaintenance at all times. 
3
2
When the photovoltaic array is exposed to light, it supplies a dc voltage to this
equipment.
4
Hot surfaces – To reduce the risk of burns – Do not touch.
"Do not remove cover until 5 minutes after disconnecting all sources of supply."

The inverter complies with the requirements of the applicable CE guild lines.

UKCA mark.
The inverter complies with the requirements of the applicable UKCA guidelines.
UKNI mark.
The inverter complies with the requirements of the applicable UKNI guidelines.
Beware of hot surface.
The inverter can become hot during operation. Avoid contact during operation.
Danger of high voltages.
Danger to life due to high voltages in the inverter!

Danger.
Risk of electric shock!

Observe enclosed documentation.

The inverter can not be disposed together with the household waste.
Disposal information can be found in the enclosed documentation.
The inverter can not be disposed together with the household waste.
Disposal information can be found in the enclosed documentation.
Danger to life due to high voltage.
There is residual voltage in the inverter which needs 5 min to discharge.
Wait 5 min before you open the upper lid or the DC lid.
，
2.3 Symbol on the Type Label
Symbol Explanation
CE mark.
RCM remark.
SAA certication.
.
3.1 View of the inverter
3 Product Overview
Position
Designation
A
LED indicator
B
Label
View the GT1 Series on-grid inverter
AB
5
4
Direct Current (DC)
Alternating Current (AC)
Point of connection for grounding protection

，
A
B
Position
1.6~3.3kW
3.6~6.0kW
7.0~10.0kW
A
280mm
350mm
410mm
B
300mm
315mm
345mm
C
140mm
176mm
186mm
3.2 Dimension
GT1 series of single-phase grid-connected inverter has two external
Dimensions. 1.6~3.3kW power range belongs to one external
dimension; 3.6~6.0kW power range belongs to one external dimension.
See below for details:
1.6~3.3kW power section model: GT1-1K6S1、GT1-2K2S1、GT1-3KS1、
GT1-3K3S1；
3.6~6.0kW power section model: GT1-3K6D1、GT1-4KD1、GT1-4K6D1、
GT1-5KD1、GT1-6KD1；
3.3 Terminals of the inverter
A DC switch
B PV connection area
C Wi-Fi p o r t
E AC1-LCD and meter communication port
F Grid output port
D DRM port (apply to AS4777)
7
6
ON
OFF Grid
DRM
DC Switc h
LCD/Me ter
Wi-Fi/4G
PV1 PV2
+
-
+
-
AB
D
C
FE G
ON
OF F PV+
Gr id
DRM
PV-
DC S witch
LC D/Met er
Wi -Fi/4 G
AB
C
D
FE
G
G Earth port
C
GT1 1.6~3.3kW block diagram
GT1 3.6~6.0kW block diagram

A
C
D
F
E
G
GT1 7.0~10.0kW block diagram
B
A DC switch
B PV connection area
C Wi-Fi p o r t
E AC1-LCD and meter communication port
F Grid output port
D DRM port (apply to AS4777)
G Earth port
3.4 System Diagram
Solar Power available
DC distribution box
PV Array
Surge arrestor
Fuse AC
breaker
Load
Single phase meter
Electric meter
Electric Grid
AC
distribution
box
Surge arrestor
Fuse
DC breaker
Inverter
9
8

B3
4 Scope of Delivery
A B C D
E F G H
I
N(optional)
K L
Item QTY Designation
A 1 Inverter
B 1 Bracket
C 3 Expansion screws for fixing mounting bracket
E 1/2/3
F
G
H RJ45terminal
J
K
AC1-LCD (optional)
Note: ” Represents the difference in accessories, “GT1-1.6~3.3kW has a pair
Grid terminal(only apply to GT1.6~6.0kW)
L Wi-Fi
Certicatecard/ User manual /Quick installation guide
Smart Meter (optional)
I
M5 Screw for xing the inverter /Earth screw
of PV,GT1-3.6~6.0kW had two PV GT1-7.0~10.0kW had three PV., The
PV ( p 1/2/3 , negative*1/2/3) pin angle ositive*
PV ositive*terminal( p 1/2/3 , negative*1/2/3)
☆
☆
D 1/2/3
installation guide for details respectively.
☆
11
10
Quick Installation Guide
GT1 Series 1.6KW-6.0KW
The copyright of this munual belongs to Hangzhou Livoltek Power Co., td. Any corpo -
ration or individual should not lagiarize, partially or fully copy, and no reproduction or
distribution of it in any from or by any means. All rights reserved.
Copy Declaration
Ver.00
USE R MANUA L
GT1 1.6K-6K
1
1
2
1
1
1
1
J
M(optional)
O-shapedterminal(onlyapplytoGT17.0~10.0kW)
3
Waterproof Cover(only applytoGT17.0~10.0kW)
1
M
N
The installation and operation of optional parts, please check the corresponding

3
5 Mechanical Mounting
5.1 Requirements for Mounting
Make sure there is no electrical connection before installation.
•In order to avoid electric shock or other injury, make sure that holes will
not be drilled over any electricity or plumbing installations.
•Always follow the instructions when moving and positioning the inverter.
•Improper operation may cause injuries or serious wounds. In the case
of poor ventilation, the system performance may compromise.
5.1.1 Location Requirements
Select an optimal mounting location for safe operation, long service life and
expected performance. During the installation and operation process, please
the inverter in don't install the inverter where people may touch its casing
and radiator, because these parts will be very hot during operation.
5.1.2 Environment Requirements
The inverter must be installed in a ventilated environment to ensure good
heat dissipation. Make sure the installation site meets the following
conditions:
•
Not in areas where highly ammable materials are stored.
• Not in potential explosive areas.
• Not in the cool air directly.
• Not near the television antenna or antenna cable.
• Not higher than altitude of about 4000m above sea level.
• Not in environment of precipitation or humidity (＞95%).
• Under good ventilation condition.
• The ambient temperature in the range of -30℃ to +60℃.
• The slope of the wall should be within ±5°.
• The wall hanging the inverter should meet conditions below:
• The wall must be solid enough to bear the weight of the inverter.
• Do not install the inverter on a wall made of gypsum boards or similar
materials with weak sound insulation to avoid noise disturbance in a
residential area.
No direct sunlightNo rain exposureNo snow layup
DirectsunlightRain exposureSnow lay up
•
13
12

800
1
5.1.3 Angle and Space Requirements
Never install the inverter horizontally, or with a forward tilt or with a backward
tilt or even with upside down. The horizontal installation can result in damage
to the inverter. Install the inverter upright or at a maximum back tilt of 15
degrees to facilitate heat dissipation.
300mm
300mm
500mm
600mm
500mm
Position Min Distance
Left
Right
Up
Down
Forward
Reserved space dimensions of installation
Reserve enough space when installing inverter (at least 300mm) for heat dissipation.
The distance of installation space for multiple inverter is as follows:
≥500mm
≥600mm
≥300mm≥300mm
≥300mm ≥300mm ≥300mm
≥300mm
≥300mm
≥300mm
≥ 0 0mm1 0 ≥ 00mm10
≥600mm
≥600mm
≥500mm
≥500mm
≥15°
15
14
√×√

5.2 Mounting Instructions
Installation Tools (recommended but not limited to the following ones):
Protective glasses and gloves, Marker, Measuring tape, Multi-meter, Wire crimper,
Stripping pliers, Screwdriver, Manual wrench, Hammer drill and drill bit, etc.
Mounting the Inverter
Step1: Drill holes on the wall
• Locate the appropriate drilling holes and mark it with a marker pen.
• Drill holes with driller, make sure the holes are deep enough (at least50mm)
to support the inverter.
Step 4: Electrical Connection
Please refer to the operating instructions in the next chapter.
Step 2: Install the inverter to the wall
Insert the expansion tubes into the holes and hang the back plate, Then tighten
the screws to install it.
Bit Φ10
Hammer drill
Wire stripper
Multifunction terminal
crimpingtool (RJ45)
Multimeter
Tape ruler
Protective glasses Dustproof Cover
Rubber hammer
OT terminals
press clamp
Euro terminal
Spirit level\Marker
DC Voltage
(Range ≥1100V DC) crimping tool Diagonalpliers
Step 3: Installation Self-tapping screw
Hang the inverter on the back panel and lock the side with screws.
(torque: 1.5N·m)
17
16

8
Danger to life due to a high voltage inside the inverter!
•The PV string will generate lethal high voltage when exposed to sunlight.
•Before starting electrical connections, disconnect the DC and AC circuit
breakers and prevent them from inadvertent reconnection.
•Ensure that all cables are voltage free before performing cable
connection.
•Any improper operations during cable connection can cause device
damage or personal injury.
•Only qualied personnel can perform cable connection.
•All cables must be rmly attached, undamaged, properly insulated
and adequately dimensioned.
•Comply with the safety instructions related to the PV strings and the
regulations related to the utility grid.
•All electrical connections must be inaccordance with local and national
standards.
6 Electrical Connection
This chapter mainly describes the cable connections of the system.
Prior to any electrical connections, keep in mind that the inverter has dual
power supplies. It is mandatory for the qualied personnel to wear personal
protective equipments (PPE) during the electrical work.
::
Please refer to the Technical Data in chapter 9 for voltage and current
limits.
• Since the inverter is transformerless, please do not ground either output
of the PV panels. Ground the panel frames.
• Before connecting to PV modules, please install separately a DC circuit
breaker between inverter and PV modules.
• To avoid any malfunction, do not connect any PV modules with possible
current leakage to the inverter. For example, grounded PV modules will
cause current leakage to the inverter. When using CIGS modules, please
be sure NO grounding.
•
It's requested to use PV junction box with surge protection. Otherwise, it
will cause damage on inverter when lightning occurs on PV modules.
Procedure
Model Wire Size Cable
12AWG 2.5-4mm²
• Use IEC61730 class-A Rating PV modules.
• When exposed to light, PV panels will generate DC voltage.
• Turn off the DC circuit breaker before connecting any wiring.
• All wiring must be performed by a qualied personnel.
• It's very important for system safe ty and efcient operation to use
appropriate cable for PV module connection. To reduce risk of injury,
please use the proper recommended cable size as below
6.1 PV Connection
Please only use the PV connectors from the accessory box for connection. Before
connecting, please make sure:
• The voltage, current and power ratings of the panels to be connected
within the allowable range of the inverter. Ensure polarity is correct.
12AWG 2.5-4mm²
1.6~3.3kW
3.6~6.0kW
DANGER
WARNING
NOTICE
WARNING
If the inverter is equipped with a three-level lightning protection device,
12AWG 2.5-4mm²
7.0~10.0kW
19
18

1
-24
Wiring Connection
Please follow below steps to implement PV module connection:
Step1: Remove an appropriate length of the insulation layer from the
positive and negative power cables using a wire stripper.
Step2. Insert the exposed areas of the positive and negative power cables
into the metal terminals of the positive and negative connectors respectively
and crimp them using a crimping tool.
Step 6. 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.
24
Firmly
Crimped
PV+
PV-
Insert the cable through the fastening head and the opposite plug.
Note that the red and black lines correspond to differentof plugs. Finally,
force the cable pair into the plug, will a "click" sound, which indicates that
the connection is complete.
Step 5. Tighten the fastening head and into insert the corresponding positive and
negative (PV-/PV+) ports of the inverter.
Step 3. Tighten the PV pin needle and the wiring harness to make the connection
Negative
Positive
Positive terminal
Negative terminal
tight without looseness
Step 4. The PV joint is divided into 2 parts - the plug and the fastening head.
Click!
Click!
Click!
Click!
GT1-1.6~3.3kW
5~7mm
GT1-3.6~6.0kW
This unit is not provided with a GFDI device. This inverter controller
must be used with an external GFDI device as required by the article
690 of the National Electrical Code for the installation location.
WARNING
•
GT1-7.0~10.0kW
21
20

，
6.2 Grid Output Connection
Take out the Grid connector parts from the packaging. And ensure the
information below before connecting the inverter to the grid:
Suggested cable requirement for Grid wires
It's very important for system safety and efcient operation to use appropriate
cable for Grid input connection. To reduce risk of injury, please use the proper
recommended cable size as below.
Procedure:
• ①Remove the cable jacket by 50~60mm.
•
Insert the conductors to the corresponding terminal and crimp them.
•
Pull cables outward to check whether they are rmly installed.
• The grid voltage and frequency must be in the permissible range.
• An external AC breaker inverter andmust be installed between
This will ensure the inverter can be securely disconnectedduring
maintenance and fully protected from over current of Grid input.
• All wiring must be performed by a qualied personnel.
•
protector or disconnection rst.
• Disconnect the circuit breaker and secure it against reconnection.
::
Model Wire Size Cable Breaker Torque Valu (max)
12AWG
2.5-4mm² 25A 1.2N·m
32A 1.2N·m
10AWG 4-6mm²
GT1-1.6~3.3kW
GT1-3.6~6.0kW
WARNING
Before making Grid input/output connection, be sure to open DC
Grid input power source.
40A 1.5N·m
8AWG
GT1-7KT1
40A 1.5N·m
8AWG
GT1-8KT1
60A 1.5N·m
8AWG
GT1-9KT1
60A 1.5N·m
8AWG
GT1-10KT1
8-10mm²
8-10mm²
8-10mm²
8-10mm²
Step 2: Installing the Grid Connector
• Insert the corresponding L/N/PE and use the matching tools to lock it, then
tighten the threaded sleeve.(torque: )
Note: The place where the device needs to be fastened during installation
needs to hear “click” sound to conrm that it is locked.
1.2N·m
N
L
PE
GT1-1.6~3.3kW and GT1-3.6~6.0kW series Grid connection are as
follows: Step1: Assembling the Grid Connector .
②Strip the wire insulation by 5~7 mm.
•
.
-24
Firmly
Crimped
5~7mm
②
5~7mm 60~65mm
①
②
23
22

• Finally, insert it into the Grid port on the bottom frame of the inverter, and
GT1-1.6~3.3kW GT1-3.6~6.0kW
tighten it.
GT1-7.0~10.0kW series PV connection are as follows:
Step3: Remove the cable jacket and strip 60~65mm, And strip wire insulation
Step4: Insert the conductors to the corresponding terminal and crimp them.
Pull cables outward to check whether they are rmly installed
by 7-10mm.
7-10mm
Step1:First pull out waterproof plug of the Grid Cover.
Step2:And pass the Grid harness through the Grid cover.
Step5: Tighten the L/N/PE screws of Grid respectively, and then fasten Grid Cover.
GT1-7.0~10.0kW
GT1-7.0~10.0kW
7~10mm
60~65mm
①
②
(torque:)
1.5N·m
②
25
24

LCD display connection diagram:
Step 1: The communication interface between the inverter and the external LCD
screen is LCD, with an RJ45 connector. Insert the RJ45 connector into the port
marked "LCD" on the inverter and tighten the cover.
Step 2: Plug the other end of the RJ45 cable into the port of the external
LCD screen.
LCD Connector Pin Denition:
1、 GND
2、X
3、X
4、485B1
5、485A1
6、X
7、X
8、+12V
6.3.2 External LCD Display control panel (Optional)
LCD Display indicates the operating status and input/output power the
information of the inverter. And the system parameters can also be set on it.
Please follow user manual of LCD Display panel for the detailed wire connection.
7
6
8
Meter connection diagram:
Step 1: The communication interface between the inverter and the Meter , with an
Rj45 connector. Insert the RJ45 connector into the port marked "Meter " on the
inverter and tighten the cover.
Step 2: Plug the other end of the RJ45 cable into the port of the Meter.
6.3.1 MeterConnection (Optional)
Surge arrestor
Fuse
AC breaker
Load
Single phase meter
Electric meter
Electric Grid
AC distribution box
Please note that the meter brand required by Livoltek must be used.
GT1 series single-phase grid-connected inverters should work with electric meter or
current sensors to monitor household electricity consumption and limit the inverter’s
output power to the mains. In addition, the electricity meter can transmit the
relevant electricity consumption data to the inverter or platform, which is convenient
for users to read at any time.
Meter Connector Pin Denition:
1、 X
2、485A2
3、X
4、X
5、X
6、X
7、485B2
8、X
7
6
8
6.3 CommunicationConnection (Optional)
27
26

6.3.4 Communication connection
Unscrew the screw and take off the cover, you see that are two RJ45 ports.
Pass the wire harness through the cover with the waterproof plug, and then strip
the wire. Stripping requirements: 5-7mm.
DRM Connector Pin Denition:
1、 DRM1/5
2、DRM2/6
3、DRM3/7
4、DRM4/8
5、3.3V
6、DRM0
7、3.3V
8、GND
7
6
8
Corresponding access according to the line sequence requirements of the RJ45
specication of the interface, and use a crimping tool to press it.
6.3.3 DRMconnection(Apply to AS.4777)
Gt1 series single-phase grid-connected inverters should work with electric meter or
current sensors to monitor household electricity consumption and limit the inverter’s
output power to the mains. In addition, the electricity meter can transmit the
relevant electricity consumption data to the inverter or platform, which is convenient
for users to read at any time.
DRM requirements:
Mode
DRM0 Operation disconnect device
Do not generate power
Do not generate more than 75% of rated power AND
Sink reactive power if capable
Requirement
DRM5
Do not generate more than 50% of rated power
Increase power consumption
(subject to constraints from other active DRMs)
Do not consume more than 75% of rated power AND
Source reactive power if capable
DRM6
DRM7
DRM8 Increase power generation
(subject to constraints from other active DRMs)
Do not consume power
Do not consume more than 50% of rated power
DRM1
DRM2
DRM3
DRM4
DRM Connector Pin Denition:
1、 DRM1/5
2、DRM2/6
3、DRM3/7
4、DRM4/8
5、3.3V
6、DRM0
7、3.3V
8、GND
7
6
8
5~7mm
(torque:1.2N·m)
29
28

• Earth connection essential before connecting supply
• Be sure that AC power source is disconnected before attempting to
hardwire i t to the unit.
Good grounding is good for resistance to surge voltage shocks and
improves EMI performance.Therefor,beforeconnectingAC，DCand
communicationcables,you need to ground the wires.
Forasingle inverter, simply ground the PE cable; For multi-inverter, the
PE cables for all inverters need to connected to the same grounded
copper strip to ensure an equipotential connection.
WARNING
NOTICE
6.4 Earth connection(mandatory requirement)
Step1: prepare a one-core wire, strip it 5-7mm and crimp the incoming
Step2: Then insert it through earth terminal and use a crimping tool to press
it tightly；
5-7mm
Meter Connector Pin Denition:
1、 X
2、485A2
3、X
4、X
5、X
6、X
7、485B2
8、X
7
6
8
LCD Connector Pin Denition:
1、 GND
2、X
3、X
4、485B1
5、485A1
6、X
7、X
8、12V
7
6
8
GT1 series inverter support the connection of meter, and the PIN connected to
meter is:2/7.
GT1 series inverter support the connection of external LCD, and the PIN for
connected to external LCD is: 1/4/5/8.
Correspondingly insert the DRM\LCD\Meter port, and lock the cover.
(torque:1.2N·m) (torque:1.5N·m)
，
Procedure:
::
Model Wire Size Cable Torque Valu (max)
12AWG 2.5-4mm² 1.5N·m
1.5N·m
12AWG
2.5-4mm²
1.6~3.3kW
3.6~6.0kW
Earth terminal；
If the PV end of the inverter is not connected with earth, the inverter will
turn on a red light inspect and report Earth Fault. this inverter
complies with IEC 62109-1 clause 13.9 for earth fault alarm monitoring
•
•
•
1.5N·m
12AWG
2.5-4mm²
7.0~10.0kW
31
30

6.5 Wi-Fi Connection
The inverter provides a Monitoring module port, which can transmit data of the
inverter to the monitoring website via Wi-Fi. (If necessary, purchase
products from Livoltek)
Monitoring module connection diagram:
Wi-Fi module implements communication with Cloud server through wireless or
Ethernet network to monitor inverter's data status. For more details, refer to Wi-Fi
Product Application Manual.
Sept 1: Disassemble Livoltek's Wi-Fi accessories, andopenthewaterproofplug
Step 2: Install the Wi-Fi module at the corresponding position in the inverter, and
buckle tightly, you mainly need to hear a ”click”;
Please go to the Livoltek APP or the external LCD screen to connect to the
Internet and set it up. For specic details, please refer to the WiFi user manual.
Livoltek
Router
8
0
80
oftheWi-Fi portontheinverter;
GT1-1.6~3.3kW GT1-3.6~6.0kW
GT1-7.0~10.0kW
3332

6.7 Installation Verication
Check the following items after the inverter is installed.
• No other objects put on the inverter.
• All screws especially the screws used for electrical connections are tightened.
• The inverter is installed correctly and securely.
• Ground, AC, DC and Communications cables are connected tightly correctly
and securely.
• Check there is no open circuit or short circuits at AC and DC terminals using
multi-meter.
• Idle terminals are sealed.
• All safety warning symbols are intact and complete on the inverter.
6.6 AFCI (Optional)
If an arc fault error occurs, follow the steps below to troubleshoot the
AFCI fault and restart the inverter.
Do not turn off AFCI permanently.
Warning
Arc-Fault Arc-Fault circuit interrupter (AFCI) refers to a photovoltaic module or
cable that is not properly connected or damaged, and may produce an arc.
According to UL 1699B:2018, the inverter has an arc detection and interrupt
identication system, which produces an arc situation, and the inverter must trip
within the specied time, and can only be manually reset to ensure the safety of
the user's life and property. GT1 series inverter this function is turned on by default,
if you do not need this function, you can log on to the Livoltek APP, cloud platform,
local Bluetooth or external LCD display box to turn off .
(go to the "Advanced Settings" interface, select "AFCI function> Setting>Disable")
6.6.1 AFCI fault alarm cleared
GT1 series has an automatic clearance mechanism for AFCI alarms. If an alarm is
triggered less than 4 times in a 24-hour period and lasts less than 5 minutes, the
inverter will automatically clear the alarm. If more than 5 consecutive alarms are
triggered within 24 hours, the GT1 series inverter lock protection. Manual
intervention is required to manually clear the alarm and restore the normal
operation of the inverter.
When "AFCI Fault" is prompted, an arc has occurred in the PV system. The inverter
will trip and shut down.
When "AFCI self-test fault" is prompted, an arc occurs in the PV system self-test.
Inverter retest start.
How do I manually remove alarms?
Method 1: Livoltek App / Livoltek Cloud Platform / Local Bluetooth /
External LCD Display Box.
Log in to the Livoltek app /Livoltek cloud platform/ external LCD display
box, the main menu enters the "Settings > Advanced Settings" interface,
click "Restart".
Method 2: Put the DC and AC switches of the inverter in the "OFF" position.
Wait for the screen to turn off.
Check the wiring of the PV assembly, if there is a switch in the front stage of
the PV, you need to check whether the switch wiring is abnormal.
After troubleshooting, reboot the inverter and place the DC and AC switches in the
"ON" position.
If the system fault display is not eliminated, please contact customer service;
After the circuit breaker or open and close between the inverter and the
Remark
power grid, the inverter will start the countdown self-test, and the self-test
will jump out "AFCI self-test..." After the self-test is normal, it can be
connected to the power grid.
•
•
•
•
Menu Setting Advanced Setting Restart
ON
OFF
DC Switc h
ON
OFF
DC Switc h
ON
OFF
DC Switc h
ON
OFF
DC Switc h
35
34