UL1741 10KW Solar Off Grid Inverter

Specifications

• Model: GSI I 4K-12KW
• Type: Hybrid Solar Inverter

About This Manual

The purpose of this manual is to provide explanations and
procedures for installing, operating, and troubleshooting the GSI I
4K-12KW Hybrid Solar Inverter. Please read this manual carefully
before installations and operations. Retain this manual for future
reference.

Scope

This document defines the functional requirements of the GSI I
4K-12KW Hybrid Solar Inverter, intended for worldwide use in
electronic processing equipment. All manuals are applicable under
all operating conditions when installed in the End Use system
unless otherwise stated.

Important Safety Instructions

General Precautions:

1. Before using the unit, read all instructions and cautionary
   markings on:

2. The unit

3. The batteries

4. All appropriate sections of this manual

5. CAUTION –To reduce the risk of injury, charge only deep-cycle
   lead acid type rechargeable batteries or LiFePO4 batteries. Other
   types of batteries may burst, causing personal injury and
   damage.

6. Do not expose the unit to rain, snow, or liquids of any type.
   The unit is designed for indoor use only. Protect the unit from
   splashing if used in vehicle applications.

7. 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.

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

9. CAUTION –Battery are not already installed by the supplier.
   Only a qualified professional (e.g., service person) may install
   the Inverter.

10. WARNING: WORKING IN VICINITY OF A LEAD ACID BATTERY IS
    DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL
    OPERATION. Provide ventilation to outdoors from the battery
    compartment. The battery enclosure should be designed to prevent
    accumulation and concentration of hydrogen gas in pockets at the
    top of the compartment. Vent the battery compartment from the
    highest point. A sloped lid can also be used to direct the flow to
    the vent opening location.

11. NEVER charge a frozen battery.

12. No terminals or lugs are required for hook-up of the AC wiring.
    AC wiring must be no less than 10 AWG gauge copper wire details
    refer to table 2. Battery cables must be rated for 35mm or higher
    and should be no less than table 1. Crimped and sealed copper ring
    terminal lugs with a HRNB38-8 hole should be used to connect the
    battery cables to the DC terminals of the unit. Soldered cable lugs
    are also acceptable.

13. Be extra cautious when working with metal tools on or around
    batteries. The potential exists to drop a tool, shorting the
    battery terminals together.

Personal Precautions:

1. Someone should be within range of your voice to come to your
   aid when you work near batteries.

2. Have plenty of fresh water and soap nearby in case battery acid
   contacts skin, clothing, or eyes.

3. Wear complete eye protection and clothing protection. Avoid
   touching eyes while working near batteries.

FAQ

Q: Can I use any type of batteries with the GSI I 4K-12KW

Hybrid Solar Inverter?

A: No, you should only use deep-cycle lead acid type
rechargeable batteries or LiFePO4 batteries. Using other types of
batteries may cause personal injury and damage.

Q: Can I install the GSI I 4K-12KW Hybrid Solar Inverter

myself?

A: No, the installation of the inverter should be done by a
qualified professional (e.g., service person) to ensure proper
installation and safety.

Q: Can I expose the GSI I 4K-12KW Hybrid Solar Inverter to rain

or liquids?

A: No, the unit is designed for indoor use only. It should not
be exposed to rain, snow, or any type of liquids. If used in
vehicle applications, it should be protected from splashing.

Q: What precautions should I take when working near

batteries?

A: When working near batteries, make sure someone is within
range of your voice to come to your aid. Have fresh water and soap
nearby in case battery acid contacts your skin, clothing, or eyes.
Wear complete eye protection and clothing protection, and avoid
touching your eyes while working near batteries.

User Manual
GSI I 4K-12KW Hybrid Solar I nverter

CONTENTS

Inverter User M anual

ABOUT THIS MANUAL…………………………………………………………………………………………………………………1 Purpose ………………………………………………………………………………………………………………………………………. 1 Scope …………………………………………………………………………………………………………………………………………. 1 IMPORTANT SAFETY INSTRUCTIONS …………………………………………………………………………………………. 1 General Precautions …………………………………………………………………………………………………………………….. 1 Personal Precautions ……………………………………………………………………………………………………………………. 2 INSTALLATION …………………………………………………………………………………………………………………………… 3 Unpacking and Inspection ……………………………………………………………………………………………………………… 3 Basic Configuration ………………………………………………………………………………………………………………………. 3 Mounting the Unit …………………………………………………………………………………………………………………………. 4 Batteries ……………………………………………………………………………………………………………………………………… 4 Battery Cable Size ……………………………………………………………………………………………………………………….. 6 DC Disconnect and Over- Current Protection ……………………………………………………………………………………. 6 Battery Cable Connection ……………………………………………………………………………………………………………… 6 AC Cable Size………………………………………………………………………………………………………………………………7 AC Connections …………………………………………………………………………………………………………………………… 7 PV Connection …………………………………………………………………………………………………………………………….. 8 Generator start signal…………………………………………………………………………………………………………………….8 Machine panel introduction ……………………………………………………………………………………………………………. 9 OPERATION ……………………………………………………………………………………………………………………………… 11 LCD Panel and Configuration Switch …………………………………………………………………………………………….. 11 Setting Indicators ……………………………………………………………………………………………………………………….. 12 LCD display meaning ………………………………………………………………………………………………………………….. 15 Operating Indicators ……………………………………………………………………………………………………………………. 16 SPECIFICATIONS ……………………………………………………………………………………………………………………… 18 Standard model ………………………………………………………………………………………………………………………….. 18 Split phase model (USA) ……………………………………………………………………………………………………………… 21 Solar Charger……………………………………………………………………………………………………………………………..23 General Specifications ………………………………………………………………………………………………………………… 24 APPENDIX A …………………………………………………………………………………………………………………………….. 25 How to Select and Configure PV Panels ………………………………………………………………………………………… 25 APPENDIX B (Wi-Fi Plug Pro) ……………………………………………………………………………………………………. 27 Quick Installation Guideline…………………………………………………………………………………………………………..27 DISPOSAL ………………………………………………………………………………………………………………………………… 30

Inverter User M anual
ABOUT THIS MANUAL
Purpose
The purpose of this manual is to provide explanations and procedures for installing, operating and troubleshooting for the unit. This manual should be read carefully before installations and operations. Please retain this manual for future reference.
Scope
This document defines the functional requirements of the unit, intended for worldwide use in electronic processing equipment. All manuals are applicable under all operating conditions when installed in the End Use system, unless otherwise stated.
IMPORTANT SAFETY INSTRUCTIONS
WARNING: This chapter contains important safety and operating instructions. Read and keep this User Guide for future reference.
General Precautions
1. Before using the unit, read all instructions and cautionary markings on: (1) The unit (2) the batteries (3) all appropriate sections of this manual.
2. CAUTION –To reduce risk of injury, charge only deep-cycle lead acid type rechargeable batteries or LiFePO4 batteries. Other types of batteries may burst, causing personal injury and damage.
3. Do not expose the unit to rain, snow or liquids of any type. The unit is designed for indoor use only. Protect the unit from splashing if used in vehicle applications.
4. 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.
5. To reduce risk of electric shock, disconnect all wiring before attempting any maintenance or cleaning. Turning off the unit will not reduce this risk.
6. CAUTION –Battery are not already installed by the supplier only a qualified professional (e.g. service person) may install the Inverter.
7. WARNING: WORKING IN VICINITY OF A LEAD ACID BATTERY IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL OPERATION. Provide ventilation to outdoors from the battery compartment. The battery enclosure should be designed to prevent accumulation and concentration of hydrogen gas in “pockets” at the top of the compartment. Vent the battery compartment from the highest point. A sloped lid can also be used to direct the flow to the vent opening location.
8. NEVER charge a frozen battery. 9. No terminals or lugs are required for hook-up of the AC wiring. AC wiring must be no less than 10 AWG
gauge copper wire details refer to table 2. Battery cables must be rated for 35mm or higher and should be no less than table 1. Crimped and sealed copper ring terminal lugs with a HRNB38-8 hole should be used to connect the battery cables to the DC terminals of the unit. Soldered cable lugs are also acceptable. 10. Be extra cautious when working with metal tools on, or around batteries. The potential exists to drop a
1

Inverter User M anual
tool and short-circuit the batteries or other electrical parts resulting in sparks that could cause an explosion. 11. No AC or DC disconnects are provided as an integral part of this unit. Both AC and DC disconnects must be provided as part of the system installation. See INSTALLATION section of this manual. 12. Fuses are provided as the over current protection of the battery supply. 13. When PV module or panel is exposed to light, it starts to supply high DC voltage, be sure to turn off DC switch before commencing the maintenance, and make sure the cables from PV panel are properly sealed after disconnection. 14. GROUNDING INSTRUCTIONS -This battery charger should be connected to a grounded permanent wiring system. For most installations, the Ground Lug should be bonded to the grounding system at one (and only one point) in the system. All installations should comply with all national and local codes and ordinances. 15. AVOID AC output short-circuit; avoid DC input short-circuit and do not connect the mains while DC input short-circuit 16. Warning: The maintenance information is only for service persons, if the product is used in a manner which is not covered by the scope of warranty, the protection provided by the product may be impaired.
Personal Precautions
1. Someone should be within range of your voice to come to your aid when you work near batteries. 2. Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes. 3. Wear complete eye protection and clothing protection. Avoid touching eyes while working near batteries.
Wash your hands when done. 4. If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters eyes,
immediately flood eyes with running cool water for at least 15 minutes and get medical attention immediately. 5. Baking soda neutralizes lead acid battery electrolyte. Keep a supply on hand in the area of the batteries. 6. NEVER smoke or allow a spark or flame in vicinity of a battery or generator. 7. Be extra cautious when working with metal tools on, and around batteries. Potential exists to short-circuit the batteries or other electrical parts which may result in a spark which could cause an explosion. 8. Remove personal metal items such as rings, bracelets, necklaces, and watches when working with battery. Battery can produce short-circuit current high enough to weld a ring, or the like, to metal causing severe burns. 9. If a remote or automatic generator start system is used, disable the automatic starting circuit and/or disconnect the generator from its starting battery while servicing to prevent accidental starting during servicing.
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Inverter User M anual
INSTALLATION
Unpacking and Inspection
Carefully unpack the inverter/charger from its shipping carton. Verify all of items list below are present. Please call customer service if any items are missing.
The unit 1 user’s manual
Basic Configuration
GSII Series hybrid Inverter is designed to serve as a backup power supply for AC loads. The input power of GSII Series hybrid Inverter comes from PV system and AC grid which not only supply power to AC loads but also charge the battery bank when the power from AC grid or AC generator is present (also known as Line Mode).In the event of AC grid (or AC generator) outage, the AC loads can be alternatively powered by PV system (if the illumination is sufficient) and battery bank. The following illustrations show basic applications for GSII Series hybrid Inverter.
Figure 1. Typical Application of GSII series hybrid Inverter Note: Appliances like Air conditioner needs at least 3 minutes to restart in case of a power shortage occurs
in a way that the power turns off then back on again rapidly (time is required to balance the refrigerant gas in inside circuit); so in order to protect your Air conditioner, please consult the Air conditioner manufacturer whether they have already provided time delay function before installing. Otherwise, Inverter will trig overload fault and shut off its output to protect your appliance but sometimes it is not enough and your Air conditioner can be damaged internally beyond repair.
3

Mounting the Unit
Consider the following points before selecting where to install: 1 Do not mount the inverter on flammable construction Materials. 2 Mount on a solid surface 3 Install this inverter at eye level in order to allow the LCD display to be read at all times. 4 The ambient temperature should be between 0°C and 50°C to ensure optimal operation. 5 The recommended installation position is to be adhered to the wall vertically. 6 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.4
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY

Inverter User M anual

Batteries
The uni t support 24/48v batterybank. Please wire battery correctly. Before proceeding, ensure you have appropriate size batteries for this inverter. The unit can use flooded lead-acid, sealed GEL/AGM lead-acid batteries or LiFePO4 batteries so ensure that your batteries are in one of these categories. GSII inverter with built-in MPPT solar controller, for the battery and solar panel connection please refer to figure 2 and figure3. if with the built-in 48VDC MPPT 60A solar charge controller, then please configure solar panels not more than 3500W, otherwise it cannot reach the maximum charge current. Note: if you are using a gel battery or a deep cycle battery, please do not use ordinary lead-acid batteries
for use in solar energy systems. This is likely to damage the lead acid battery or to reach the desired effect. The battery must be wired to match with the DC input voltage. Recommend to use battery capacity more than 200AH.

Figure 2. 24V Battery system 4

Inverter User M anual Figure 3. 48V Battery system
Figure 4. Single MPPT 60A charging 24V Battery system Figure 5. Single MPPT 60A charging 48V Battery system Figure 6. Dual MPPT 60A charging 48V Battery system Figure 7. Dual MPPT 60A charging 48V Battery system 5

Inverter User M anual

Battery Cable Size

Below table 1 you can find information for recommended battery cable and terminal.

Table 1. Recommended battery cable and terminal size

Model Number

DC

Typical

Battery

1~3 m

0.5 m

Voltage Amperage Capacity one-way one-way

Cable Terminal

4KW

24V

195A

200AH

50mm2

35mm2

RNB60-8/RNB38-8

5KW

24V

240A

200AH

75mm2

50mm2

RNB80-8/RNB60-8

6KW

24V

295A

200AH

75mm2

50mm2

RNB80-8/RNB60-8

4KW

48V

98A

200AH

25mm2

25mm2

RNB22-8/RNB22-8

5KW

48V

120A

200AH

25mm2

25mm2

RNB22-8/RNB22-8

6KW

48V

145A

200AH

35mm2

25mm2

RNB38-8/RNB22-8

8KW

48V

195A

200AH

50mm2

35mm2

RNB60-8/RNB38-8

10KW

48V

240A

200AH

75mm2

50mm2

RNB80-8/RNB60-8

12KW

48V

295A

200AH

75mm2

50mm2

RNB80-8/RNB60-8

DC Disconnect and Over-Current Protection
For safety and to comply with regulations, battery over-current protection and disconnect devices are required. Fuses and disconnects must be sized to protect the DC cable size used, and must be rated for DC operation. Do not use devices rated only for AC service ­ they will not function properly. Note: that some installation requirements may not require a disconnect device, although over-current protection is still required.
Battery Cable Connection
Observe Battery Polarity! Place the ring terminal of DC cable over the bolt and directly against the unit’s battery terminal. Tighten the M8 screw with 6-10 Nm. Do not place anything between the flat part of the Backup System terminal and the battery cable ring terminal or overheating may occur. DO NOT APPLY ANY TYPE OF ANTI-OXIDANT PASTE TO TERMINALS UNTIL AFTER THE BATTERY CABLE WIRING IS TORQUED!! WARNING: Shock Hazard Installation must be performed with care for the high battery voltage in series.

Caution!! Do NOT place anything between battery cable ring terminals and terminals on the inverter. The terminal screw is not designed to carry current. Apply Anti-oxidant paste to terminals AFTER terminals have been screwed. Verify that cable lugs are flush with the battery terminals. Tighten battery cables to terminals (6-10 Nm). Before making the final DC connection or closing DC breaker/disconnect or, be sure Positive (+) must be connected to positive (+) and negative (-) must be connected to Negative (-).

6

Inverter User M anual

AC Cable Size

Before wiring the input and output of inverter, refer to table 2 for minimum recommended cable size and

torque value

Table 2. Recommended cable size and torque value for AC wire

Model Number 4KW 230Vac

Typical Amperage
32A

AC Input

12AWG

4mm2

AC Output

12 AWG

4mm2

Torque value 1.5~2.0 Nm

5KW 230Vac

40A

10AWG

6mm2

12 AWG

4mm2

1.5~2.0 Nm

6KW 230Vac

50A

10AWG

6mm2

12 AWG

4mm2

1.5~2.0 Nm

4KW 120Vac

60A

8AWG

10mm2 10 AWG

6mm2

2.0~2.5 Nm

8KW 230Vac

5KW 120Vac

70A

8AWG

10mm2 10 AWG

6mm2

2.0~2.5 Nm

10KW 230Vac

6KW 120Vac

80A

6AWG

16mm2

8AWG

10mm2

2.0~2.5 Nm

12KW 230Vac

AC Connections

Installation should be done by a qualified electrician. Consult standards code for the proper wire sizes, connectors and conduit requirements. On the left of rear chassis is the AC hardwire cover. Two three-station terminal block is provided to make the AC connections. The terminal block is used to hardwire the AC input, AC output, and ground. The National Electrical Code requires that an external disconnect switch be used in the AC input wiring circuit. The AC breakers in a sub panel will meet this requirement.

Figure 8. AC Cable Connect to unit

Figure 9. AC Cable Connect to unit(Split phase model)

Step 1: Disconnect the unit from the battery by removing the battery cables. Turning off the unit before

disconnect from the battery.

Step 2: Following the wiring guide located in the AC input wiring compartment as figure 8, connect the GND

(green/yellow), L (brown), and N (blue) wires from the AC input (utility, generator, etc) to the

terminal block. (Figure 9, Please do not connect the neutral line to the split phase model,

connect the HOT1 (brown), and HOT2 (red) wires from the AC input (utility, generator, etc) to

the terminal block.)

Caution!! Be sure that AC source is disconnected before attempting to hardwire it to the unit. 7

Inverter User M anual

Step 3: Connect the AC Line output wiring to the terminal marked AC Line (output), following the wiring guide inside the compartment. Torque the wires into the terminal block.
Step 4: Lock the AC covers.

PV Connection

CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter and PV modules. WARNING! 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. Table 3. Recommended cable size and torque value for PV wire

Use position of wire rod

Wire Size

Cable (mm2)

Torque value (max)

Connection of PV to combiner box

12AWG

4mm2

1.5~2.0 Nm

Connection from combiner box to Inverter

8AWG

10mm2

2.0~2.5 Nm

WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable: single crystalline, poly crystalline with class A-rated and CIGS 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.

CAUTION: It’s requested to use PV junction box with surge protection. Otherwise, it will cause damage on inverter when lightning occurs on PV modules.

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.

Table 4. MPPT input voltage range

INVERTER MODEL

GSII4~12KW

Max. PV Array Open Circuit Voltage

78Vdc for 24Vdc

155Vdc for 48Vdc

PV Array MPPT Voltage Range

32Vdc~75Vdc for 24Vdc

Refer to Appendix A for configuration information of PV panel.

65Vdc~145Vdc for 48Vdc

Generator start signal

Two schemes can send signal to start the generator. Either scheme is selectable by users to start the generator. 1. Start the generator while battery low. 2. Start the generator while mains power unavailable.

8

Machine panel introduction
Figure 9. 4KW-6KW Front panel Figure 10. 4-6KW Back panel

Inverter User M anual
Explain: A. Battery Positive B. Battery Negative C. Terminal block D. AC input switch E. AC output switch F. On / off switch G. Grounding terminal H. RS- 232Optional I. SNMP interfaceOptional J. Remote switch and remote LCD
Optional K. DC FAN L. Generator start signal M. HOT1 Output Current circuit
breaker N. AC FAN

Figure 11. 4-6KW Split phase model Back panel 9

Figure 12. 8KW-12KW Front panel Figure 13. 8-12KW Back panel

Inverter User M anual
Explain: A. Battery Positive B. Battery Negative C. Terminal block D. AC input switch E. AC output switch F. On / off switch G. Grounding terminal H. RS- 232Optional I. SNMP interfaceOptional J. Remote switch and remote LCD
Optional K. DC FAN L. Generator start signal M. HOT1 Output Current circuit
breaker N. AC FAN

Figure 14. 8-12KW Split phase model Back panel 10

OPERATION
LCD Panel and Configuration Switch

Inverter User M anual

Table 5: configuration button function

Switch

Description

CONF

long press “1S” button to enter the setting interface

Left ­ Right SELECT

Left-right SELECT button can be used for selecting different contents( Voltage, frequency, charging current…)

Up ­ Down SELECT ENTER

Up ­ down SELECT button can be used for selecting parameter on the function setting mode Confirm, data save function
MPPT charging voltage selection switch

PV1_SET

Set the charging voltage of MPPT1 through the selector switch

PV2_SET

Set the charging voltage of MPPT2 through the selector switch

LED PV1-LED

LED Indicator Description
GREEN LED Lighting on PV1 normal

PV2-LED

GREEN LED Lighting on PV2 normal

AC-LED

GREEN LED lighting on AC Mode

Battery-LED

YELLOW LED lighting on Battery Inverter Mode

Alarm-LED

RED LED lighting on Fault

11

Inverter User M anual

Setting Indicators

Table 6: MPPT configuration option(PV1_SET and PV2_SET)

Selector switch gear
0

Boost Voltage 48Vdc 24Vdc 56.4V 28.2V

Float Voltage

48Vdc 54.8V

24Vdc 27.4V

Battery type recommended AGM1

1

56.8V 28.4V 55.2V 27.6V AGM2(default)

2

58.8V 29.4V 58.0V 29.0V 16 string LiFePO4 battery pack

3

58.0V 29.0V 57.6V 28.8V 16 string LiFePO4 battery pack

4

57.2V 28.6V 56.4V 28.2V 16 string LiFePO4 battery pack

5

55.2V 28.4V 54.4V 27.2V 15 string LiFePO4 battery pack

6

54.4V 27.2V 54.0V 27.0V 15 string LiFePO4 battery pack

7

53.6V 26.8V 52.8V 26.4V 15 string LiFePO4 battery pack

8

62.0V 31.0V 60.4V 30.2V other

9

58.4V 29.2V 56.8V

Table 7: Inverter configuration option

NO.

Description

28.4V other Selectable option

1 Input voltage range Setting

Wide/Normal(default)

2 Output voltage Setting 3 Output frequency Setting 4 AC charging voltage setting

208/220/230(default)/240Vac Split phase model:240(default) 50(default)/60Hz/Automatic
Split phase model:60(default) AC charge off, b1(default), b2, b3, b4, b5, b6, b7, b8

5 AC Charger current Setting

16A/32A/48A/64A(default)/80A

DC priority / AC priority / intelligent 6
mode selection setting Battery low voltage shutdown point 7 setting DC conversion voltage point setting 8 Switch from battery mode to AC mode Generator startup operation time 9 setting( unit: minute)
10 Battery capacity setting

DC mode priority / AC mode priority(default), Intelligent mode
38.0V/40.0V(default)/42.0V/44.0V/46.0V/47.2Vdc
40.0V/42.0V/44.0V(default)/46.0V/48.0V/50.0Vdc
30/60/90/120(default)/150/180/210/240/ 270/300/330/360 65/80A/00/150/200/250/300/400(default)/500/600/8 00AH

12

1. Input voltage range setting

Inverter User M anual

Narrow range mode (default) 2. Output voltage setting
3. Output frequency setting

Wide range mode Set output voltage into 208Vac Set output voltage into 220Vac Set output voltage into 230Vac (default) Set output voltage into 240Vac
Set output frequency into 50Hz (default)

Set output frequency into 60Hz

4. AC charging voltage setting

Set output frequency to adaptive, The output frequency in battery mode is subject to the mains input frequency
Turn off AC charging

Boost.V/Float .V 56.0V/54.8V (28.0V/27.4V)

Boost.V/Float .V 58.4V/57.6V (29.2V/28.8V)

Boost.V/Float .V 57.6V/57.2V(28.8V/28.6V)

Boost.V/Float .V 56.8V/56.0V(28.4V/28.0V)

Boost.V/Float .V 54.8V/54.0V(27.4V/27.0V)

Boost.V/Float .V 54.0V/53.6V(27.0V/26.8V)

Boost.V/Float .V 53.2V/52.4V(26.6V/26.2V)
De sulphation cycle, Boost.V 62.0V (31.0V), Float .V 4 hours then off Note: b-1 is a AGM/GEL(default), b-3 is a 16S LiFePO4(default), b-6 is a 15S LiFePO4(default), The values in parentheses in the table refer to the 24V battery system.
13

Inverter User M anual

5. AC Charger current setting

Set AC charging current into 80A (50A) Set AC charging current into 64A (40A) (default) Set AC charging current into 48A (30A)

Set AC charging current into 32A (20A) Set AC charging current into 16A (10A) Maximum rated charge current can be divided into 5 different stall for adjusting.

6. DC priority / AC priority / intelligent mode selection setting

AC mode priority (default)

DC mode priority

Intelligent mode

7. Battery low voltage shutdown point setting

DC voltage is lower than 38.0V (19.0V) DC voltage is lower than 40.0V (20.0V) (default) DC voltage is lower than 42.0V (21.0V)

DC voltage is lower than 44.0V (22.0V) DC voltage is lower than 46.0V (23.0V)

DC voltage is lower than 47.2V (23.6V) 8. DC conversion voltage point settingSwitch from battery mode to AC mode
DC voltage is lower than 40.0V (20.0V)

DC voltage is lower than 42.0V (21.0V) DC voltage is lower than 44.0V (22.0V) (default)
DC voltage is lower than 46.0V (23.0V)

DC voltage is lower than 48.0V (24.0V)
DC voltage is lower than 50.0V (25.0V) Note: This function is only effective in DC priority and intelligent mode.
The values in parentheses in Table 7 and 8 refer to the 24V battery system. 14

9. Generator startup operation time setting

Inverter User M anual (default)

Setting the operating time for generator startup. 10. Battery capacity setting

(default)

Setting the correct user access battery capacity is conducive to the inverter to display the battery capacity more accurately.
LCD display meaning
Table 8: display meaning Inverter normal work
Line mode is enabled
PV input is connected
Battery backup mode is enabled
Bypass mode is enabled This icon is showed when there is a fault event. The number is the fault code which can be referred to specific fault event (please refer to Section “Table 6 Fault code meaning”). AC Icon Bypass Icon
15

Inverter User M anual
AC Voltage and Frequency display The load icon and level bar indicates the loading level (0~100%), Loading display Level of remaining battery capacity, Battery voltage PV (Solar system) PV (Solar system) input voltage PV (solar system) input current PV (Solar system) power generation display MPPT solar charger normal working Inverter

Operating Indicators
AC Mode:

AC+PV Mode:

DC Mode:

PV Mode:

Alternating display of AC voltage and frequency, battery voltage and battery capacity every 5 seconds 16

Fault Mode: The upper left corner of the LCD shows the fault code and buzzer ringing.

Inverter User M anual

Table 9: Fault code meaning

Fault code

Fault

Over temperature,

fan fault 1
(alarm light on)

Overload 2
(alarm light on) Output short circuit (alarm light on) 3

Over temperature

4

(alarm light on)

Low battery voltage

5

(alarm light on)

Reverse input 6
(alarm light on) Semi-wave short 7 circuit(unusual load) Over charge 8 (alarm light on) Battery over voltage 9 (alarm light on)

Reason and Solution Inverter operate environment is very bad, insufficient ventilation and indoor temperature is very high. Close the inverter and wait for 10 minutes, after inverter cool, start again, if fan fault, please replace with a new fan. Connecting load power is over than inverter’s rated power, if reduce the load equipments quantity, inverter will work again. Close the inverter and disconnect all load equipment, inspect load equipments if any of them had fault or internal short circuit, then start the inverter again. If still fault, please consult with manufacture. Inverter operate environment is very bad, insufficient ventilation and indoor temperature is very high. Close the inverter and wait for 10 minutes, after inverter cool, start again. Battery damage; Battery deeply discharged, so need to charge again; battery problem, please replaces the battery. Inverter charger no work, please consult manufacture. Connect input and output again in correct way.
The connecting load power is over than inverter’s rated power, after reduce load equipments quantity, inverter will work again. Battery type selection incorrect; Charger damage, please consult manufacture for help. Check if battery bank dc voltage is corresponding to this inverter requested dc voltage.

17

Inverter User M anual

SPECIFICATIONS

Standard model

Table 10: Line Mode Specifications MODEL

GSII 4~12KW

Rated power

4 ~ 6KW (120Vac)

4 ~ 12KW (230Vac)

Input Voltage Waveform

Sine wave(Utility or Generator)

Nominal Input Voltage

120Vac(L+N)

230Vac(L+N)

Low Line Disconnect

85Vac±4%(NOR) 80Vac±4%(WID)

180Vac±4%(NOR) 140Vac±4%(WID)

95Vac±4%(NOR)

190Vac±4%(NOR)

Low Line Re-connect

85Vac±4%(WID)

150Vac±4%(WID)

Note: 1.NOR setting can be used for general electrical appliance 2. WID setting can be used only for some special load, Such as lamp, fan.

High Line Disconnect

136Vac±4%(NOR) 140Vac±4%(WID)

270Vac±4%(NOR) 270Vac±4%(WID)

High Line Re-connect

131Vac±4%(NOR) 135Vac±4%(WID)

260Vac±4%(NOR) 260Vac±4%(WID)

Max AC Input Voltage

150VAC

270VAC

Nominal Input Frequency

50Hz/60Hz (Auto detection)

Low Line Frequency Disconnect

40±0.3Hz for 50Hz50±0.3Hz for 60Hz

Low Line Frequency Re-connect

41±0.3Hz for 50Hz51±0.3Hz for 60Hz

High Line Frequency Disconnect

55±0.3Hz for 50Hz68±0.3Hz for 60Hz

High Line Frequency Re-connect

54±0.3Hz for 50Hz67±0.3Hz for 60Hz

Output Voltage Waveform

Same as Input Waveform

Output Short Circuit Protection

Air switch

Efficiency (Line Mode)

98%

Transfer Time Note: NOR ­ Normal range; WID-Wide range.

15ms (Typical) 20ms max(WID)

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Inverter User M anual

Table 11: Invert Mode Specifications

POWER MODEL

GSII4K-48 GSII5K-48 GSII6K-48 GSII8K-48 GSII10K-48 GSII12K-48

MODEL Output Voltage Waveform

GSII4K-24-60A, GSII5K-24-60A, GSII6K-24-60A, GSII4K-24-120A, GSII5K-24-120A, GSII6K-24-120A, GSII4K-48-60A, GSII5K-48-60A, GSII6K-48-60A, GSII8K-48-60A, GSII10K-48-60A, GSII12K-48-60A. GSII4K-48-120A, GSII5K-48-120A, GSII6K-48-120A, GSII8K-48-120A, GSII10K-48-120A, GSII12K-48-120A.
Pure Sine Wave

Rated Output Power

4000W 5000W 6000W 8000W 10KW

12KW

Power Factor
Nominal Output voltage Minimum Peak Output Voltage at Rated Power Output Frequency(Hz)

0.9 – 1.0 110/120/130Vac; 220/230/240Vac 120Vac for 4~6KW; 230Vac for 4~12KW

95Vac for 120Vac; >200Vac for 230Vac
50Hz / 60Hz ± 0.3Hz

Output Voltage Regulation

±10%

Nominal Efficiency

87% (@Normal DC Input; >60% R load)

Over-Load Protection Capable of starting electric motor

105% <load<125%, beeps 0.5s every 1s, and Fault after 60s. Load>125%, beeps 0.5s every 1s, and Fault after 20s.
YES

Output Short Circuit Protection Power saver

Current limit (Fault after 6s); Air switch. Load35 ±10W (Enabled on”P/S auto”setting of Remote control

DC voltage

Nominal DC Input Voltage Min DC start voltage Low DC Alarm Low DC Shut-down Low DC Shut-down Recovery High DC Shut-down High DC Shut-down Recovery

24.0Vdc (4~6KW) 22.0 ± 0.4Vdc 21.0 ± 0.4Vdc
20.0 ± 0.4Vdc(Can set) 22.0 ± 0.4Vdc 32.0 ± 0.4Vdc 31.0 ± 0.4Vdc

48.0Vdc (4~12KW) 44.0 ± 0.6Vdc 42.0 ± 0.6Vdc
40.0 ± 0.6Vdc(Can set) 44.0 ± 0.6Vdc 64.0 ± 0.6Vdc 62.0 ± 0.6Vdc

19

Inverter User M anual

Table 12: AC Charger Mode Specifications Nominal Input Voltage

120Vac(L+N)

230Vac(L+N)

Input Voltage Range High Voltage Disconnect High Line Re-connect Low Voltage Disconnect Low Line Re-connect Nominal Output Voltage

95 ~135Vac(NOR)

190 ~260Vac(NOR)

80 ~135Vac(WID)

140 ~260Vac(WID)

140Vac±4%(NOR)

270Vac±4%(NOR)

140Vac±4%(WID) 135Vac±4%(NOR) 135Vac±4%(WID)

270Vac±4%(WID) 260Vac±4%(NOR) 260Vac±4%(WID)

90Vac±4%(NOR) 75Vac±4%(WID) 95Vac±4%(NOR)

180Vac±4%(NOR) 150Vac±4%(WID) 190Vac±4%(NOR)

80Vac±4%(WID)

140Vac±4%(WID)

According to the battery type

Nominal Charge Current

24Vdc 4~6K Max=70A 48Vdc 4~6K Max=50A 48Vdc 8~12K Max=80A

Charge current tolerance

±5A

Over Charge Protection

Bat. V 31.0Vdc, Fault, Buzzer alarm for 24Vdc Bat. V 61.0Vdc, Fault, Buzzer alarm for 48Vdc (beeps 0.5s every 1s & fault after 60s)

Charge Algorithm

Three stage:
Boost CC (constant current stage) Boost CV (constant voltage stage) Float (constant voltage stage)

Note: NOR ­ Normal range; WID-Wide range

20

Inverter User M anual

Split phase model (USA)
Table 13: Line Mode Specifications MODEL

GSII 4~12KW (Split phase)

Rated power

4 ~ 12KW(Split-phase)

Input Voltage Waveform

Sine wave(Utility or Generator)

Nominal Input Voltage Low Line Disconnect
Low Line Re-connect
High Line Disconnect High Line Re-connect Max AC Input Voltage

240Vac(HOT1+HOT2) 180Vac±4%(NOR) 140Vac±4%(WID) 190Vac±4%(NOR) 150Vac±4%(WID)
Note: 1.NOR setting can be used for general electrical appliance 2. WID setting can be used only for some special load, Such as lamp, fan.
270Vac±4%(NOR) 270Vac±4%(WID) 260Vac±4%(NOR) 260Vac±4%(WID)
270VAC

Nominal Input Frequency Low Line Frequency Disconnect Low Line Frequency Re- connect High Line Frequency Disconnect High Line Frequency Re-connect Output Voltage Waveform Output Short Circuit Protection Efficiency (Line Mode) Transfer Time Note: NOR ­ Normal range; WID-Wide range.

50Hz/60Hz (Auto detection) 40±0.3Hz for 50Hz50±0.3Hz for 60Hz 41±0.3Hz for 50Hz51±0.3Hz for 60Hz 55±0.3Hz for 50Hz68±0.3Hz for 60Hz 54±0.3Hz for 50Hz67±0.3Hz for 60Hz
Same as Input Waveform Air switch >98%
15ms (Typical) 20ms max(WID)

21

Inverter User M anual

Table 14: Invert Mode SpecificationsSplit phase model

GSII4K-24-60A-SP GSII5K-24-60A-SP

GSII6K-24-60A-SP

GSII4K-48-60A-SP GSII5K-48-60A-SP

GSII6K-48-60A-SP

MODEL

GSII4K-48-120A-SP GSII5K-48-120A-SP GSII6K-48-120A-SP

GSII8K-48-60A-SP GSII10K-48-60A-SP GSII12K-48-60A-SP

GSII8K-48-120A-SP

Output Voltage Waveform

Rated Output Power(total power)

4000W

GSII10K-48-120A-SP Pure Sine Wave 5000W

GSII12K-48-120A-SP 6000W

Rated Output Power (Split phase model)

HOT1-N:2000W HOT2-N:2000W HOT1-HOT2:4000W

HOT1-N:2500W HOT2-N:2500W HOT1-HOT2:5000W

HOT1-N:3000W HOT2-N:3000W HOT1-HOT2:6000W

Rated Output Power(total power)

8000W

10KW

12KW

Rated Output Power (Split phase model)

HOT1-N:4000W HOT2-N:4000W HOT1-HOT2:8000W

HOT1-N:5000W HOT2-N:5000W HOT1-HOT2:10KW

HOT1-N:6000W HOT2-N:6000W HOT1-HOT2:12KW

Load instructions for split phase models

HOT1 load> HOT2 load, HOT1-N must be used preferentially for single load, The total load connected shall not be greater than the rated power of the inverter.

Power Factor

0.9 – 1.0

Nominal Output voltage

120V/240V

Minimum Peak Output Voltage at Rated Power

200Vac

Output Frequency(Hz)

50Hz / 60Hz ± 0.3Hz

Output Voltage Regulation

±10%

Nominal Efficiency

87% (@Normal DC Input; >60% R load)

Over-Load Protection

105% <load<125%, beeps 0.5s every 1s, and Fault after 60s. Load>125%, beeps 0.5s every 1s, and Fault after 20s.

Capable of starting electric motor Output Short Circuit Protection

YES Current limit (Fault after 10s), Air switch

DC voltage

Nominal DC Input Voltage Min DC start voltage Low DC Alarm Low DC Shut-down Low DC Shut-down Recovery High DC Shut-down High DC Shut-down Recovery

24.0Vdc (4~6KW) 22.0± 0.4Vdc 21.0 ± 0.4Vdc
20.0 ± 0.4Vdc(Can set) 22.0 ± 0.4Vdc 32.0 ± 0.4Vdc 31.0 ± 0.4Vdc

48.0Vdc (4~12KW) 44.0± 0.6Vdc 42.0 ± 0.6Vdc
40.0 ± 0.6Vdc(Can set) 44.0 ± 0.6Vdc 64.0 ± 0.6Vdc 62.0 ± 0.6Vdc

22

Inverter User M anual

Table 15: AC Charger Mode SpecificationsSplit phase model

Nominal Input Voltage Input Voltage Range High Voltage Disconnect

240Vac(HOT1+HOT2) 194 ~258Vac(NOR) 160 ~265Vac(WID) 265Vac±4%(NOR) 265Vac±4%(WID)

High Line Re-connect

258Vac±4%(NOR) 258Vac±4%(WID)

Low Voltage Disconnect Low Line Re-connect

194Vac±4%(NOR) 160Vac±4%(WID) 199Vac±4%(NOR) 165Vac±4%(WID)

Nominal Output Voltage Nominal Charge Current Charge current tolerance Over Charge Protection

According to the battery type
24Vdc 4~6K Max=70A 48Vdc 4~6K Max=50A 48Vdc 8~12K Max=80A
±5A
Bat. V 61.0Vdc, Fault, Buzzer alarm for 48Vdc (beeps 0.5s every 1s & fault after 60s)

Charge Algorithm

Three stage:
Boost CC (constant current stage) Boost CV (constant voltage stage) Float (constant voltage stage)

Note: NOR ­ Normal range; WID-Wide range

Solar Charger

Table 16: Solar Charger Mode Specifications Rated Battery voltage

24VDC

48VDC

Rated charge current Input voltage range PV charging starting voltage

60A 32~75Vdc PV.VBat.V+5.0V

60A 65~145Vdc PV.VBat.V+5.0V

Optimum operating voltage

55Vdc

110Vdc

Max. PV open circuit array voltage
Max. recommended input power (W) Dual MPPT charger Dual MPPT charging current Dual MPPT Max. recommended input power (W)

78Vdc 1750W
YES 120A (60A+60A)
3500W (1750W+1750W)

160Vdc 3500W
YES 120A (60A+60A)
7000W (3500W+3500W)

23

General Specifications

Table 17: General Specifications

General Specifications

Indicators Protections

LED+LCD Display Low battery, over charging, over load, over temp.

Remote control

YES

Operating Temperature Range Storage temperature

0°C ~ 50°C -15ºC ~ 60ºC

Operation humidity
Earthing ABYC standard (Optional)

5% ~ 95% (non-condensing) Follow customer requirement Inverter mode: the neutral and the earth joined ; Line mode: the neutral and the earth separated. Use a Relay to realize the function.

Audible Noise Cooling
MODEL

65dB max

Forced air, variable speed fan

GSII4K-60A-24

GSII5K-60A-24

GSII4K-60A-48

GSII5K-60A-48

Size (LWH mm)

572397205mm

572397205mm

Net weight (Kg)

33.0kg

36.0kg

MODEL

GSII4K-120A-48

GSII5K-120A-48

Size (LWH mm)

572441205mm

572441205mm

Net weight (Kg)

36.5kg

39.5kg

MODEL

GSII8K-120A-48

GSII10K-120A-48

Size (LWH mm)

642449220mm

642449220mm

Net weight (Kg)

57.0kg

33.0kg

MODEL

GSII4K-60A-48-SP

GSII5K-60A-48-SP

Size (LWH mm)

582397205mm

582397205mm

Net weight (Kg)

33.0kg

36.0kg

MODEL

GSII4K-120A-48-SP

GSII5K-120A-48-SP

Size (LWH mm)

582441205mm

582441205mm

Net weight (Kg)

36.5kg

39.5kg

MODEL

GSII8K-120A-SP

GSII10K-120A-SP

Size (LWH mm)

652449220mm

652449220mm

Net weight (Kg)

57.0kg

62.5kg

Product specifications are subject to change without further notice.

24

Inverter User M anual
GSII6K-60A-24 GSII6K-60A-48 572397205mm
39.0kg GSII6K-120A-48 572441205mm
42.5kg GSII12K-120A-48 642449220mm
36.0kg GSII6K-60A-48-SP 582397205mm
39.0kg GSII6K-120A-48-SP
582441205mm 42.5kg
GSII12K-120A-SP 652449220mm
71.5kg

Inverter User M anual

APPENDIX A

How to Select and Configure PV Panels

The following parameters can be found in each PV panel’s specification:

· Pmax: Max output power (W) · Voc: open-circuit voltage (V) · Isc: short- circuit current (A)

· Vmp: max power voltage (V) · Imp: max power current (A)

PV panels can be connected in series or parallel in order to obtain the desired output voltage and current which meets the inverter’s allowed range.

Example 1 – How to connect 24V 5000W model to PV panels with the following parameters?

· Pmax: 260W · Voc: 37.7V · Isc: 8.89A

· Vmp: 30.9V · Imp: 8.42A

( 1) The max. PV input power for 24V 5000W model is 1750W,

1750W / 260W = 6.73 min. 6 PV panels shall be connected

( 2) Best Operating Voltage Range is 32~75V,

75V/30.9V =2.43 max. number of PV panel in series is 2.

( 3) Max. input charging current is 60A,

60A/8.42A = 7.13 max. number of PV panel in parallel is 7.

( 4) Taking (1)~(3) into consideration, the optimized configuration is 2 PV panels in series as a string and 3 strings in parallel, as shown below.

(5) Check again the Voc and Isc of PV string, Voc of string is 2 x 37.7V=75.4V < 78.0V (Max. PV Input Voltage) OK
Isc of string is 3 x 8.89A = 26.7A < 60A (Max. PV Input Current) OK
25

Inverter User M anual

Example 2 – How to connect 48V 10KW model to PV panels with the following parameters?

· Pmax: 260W

· Vmp: 30.9V

· Voc: 37.7V

· Imp: 8.42A

· Isc: 8.89A

( 1) The max. PV input power for 48V 10KW model is 3500W,

3500W / 260W = 13.46min. 13 PV panels shall be connected.

( 2) Best Operating Voltage Range is 60~145V,

145V/30.9V = 4.69 max. Number of PV panel in series is 4.

( 3) Max. input charging current is 60A,

60A/8.42A = 7.13 max. Number of PV panel in parallel is 7.

(4) Taking (1)~(3) into consideration, the optimized configuration is 4 PV panels in series as a string, and 3
strings in parallel (as shown below).

Considering the parameters of solar panels, the total power of practical application is about 3500W
(5) Check again the Voc and Isc of PV string,
Voc of string is 4 x 37.7V = 150.8V < 155V (Max. PV Input Voltage) OK Isc of string is 3 x 8.89A =26.67A < 60A (Max. PV Input Current) OK Isc of string is 4 x 8.89A =35.56A < 60A (Max. PV Input Current) OK

26

Inverter User M anual
APPENDIX B (Wi-Fi Plug Pro)
Quick Installation Guideline
1. Installation
Take out the Wi-Fi module packaging box and first confirm whether the contents of the Wi-Fi module are correct. The list is As shown below:

Wi-Fi module packaging

Wi-Fi Module Item List

After checking the module list, install the Wi-Fi module antenna, and install it according to the following

diagram.

Wi-Fi Plug Pro Find the installation interface of the Wi-Fi module – RS232 interface on the inverter, and RS232 indicates the location in the figure below.
Wi-Fi Module installation location

Insert the Wi-Fi module into the RS232 interface, fix and lock both sides with screws, and the Wi-Fi module is installed OK.

27

2. Wireless Router Connection 2.1 Download APP
Scan the QR Code on the right side and download the APP.

Inverter User M anual

SmartESS(iOS)

SmartESS(Android)
2.2 Connect Wi-Fi Datalogger
Select the same number of Wi-Fi Plug Pro PN to connect on your Phone WLAN. (InitialPassword:12345678)
Open the APP, tap the Wi-Fi Config button to enter this page.

2.3 Network Setting
Then tap the Network Setting button. According to the prompts, type in the information to finish the network setting. After the Wi-Fi Plug Pro is restarted, reconnect the Wi-Fi which connected by step 2.1.

28

3. Create Account And Add Datalogger

Inverter User M anual

3.1 Create Account
Open the APP, tap the Register button to enter this page. According to the prompts, type in the information to create an account.

3.2 Add Datalogger
Login the account and click the Datalogger button. Tap the “” button on the top-right corner of the Datalogger page. Scan the PN on the Wi-Fi Plug Pro, or input it manually. According to the prompts, type in the information to finish add datalogger.

29

Inverter User M anual
DISPOSAL
In the event the product reaches the end of its service life, please contact the local dealer for disposal instructions.
The product must not be disposed of with the household waste.
Disposal of the product at the end of its service life shall be done in accordance with applicable disposal regulations for electronic waste. When there is a difference between the data in the manual and the measured data of the product during continuous product updates, the product shall prevail.

Version00

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614-00041-00

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