SOLIS S6 Series User manual

User Manual
for S6 Series Hybrid Inverter
Version 1.0, Release Date: 04,2023
Applicable models
S6-EH1P3K-L-PRO
S6-EH1P3.6K-L-PRO
S6-EH1P5K-L-PRO
S6-EH1P6K-L-PRO
S6-EH1P8K-L-PRO
Applicable System
Single phase system

Important Notes
Due to the product development,the product specifications and functions are subject to
change.The latest manual can be acquired via https://www.ginlong.com/global.
Every attempt has been made to make this document complete, accurate and up-to-date.
Individuals reviewing this document and installers or service personnel are cautioned,
however, that Solis reserves the right to make changes without notice and shall not be
responsible for any damages, including indirect, incidental or consequential damages
caused by reliance on the material presented including, but not limited to, omissions,
typographical errors, arithmetical errors or listing errors in the material provided in this
document.
Solis accepts no liability for customers' failure to comply with the instructions for
correct installation and will not be held responsible for upstream or downstream systems
Solis equipment has supplied.
The customer is fully liable for any modifications made to the system; therefore, any
hardware or software modification, manipulation, or alteration not expressly approved
by the manufacturer shall result in the immediate cancellation of the warranty.
Given the countless possible system configurations and installation environments, it is
essential to verify adherence to the following:
● There is sufficient space suitable for housing the equipment.
● Airborne noise produced depending on the environment.
● Potential flammability hazards.
● Solis will not be held liable for defects or malfunctions arising from:
● Improper use of the equipment.
● Deterioration resulting from transportation or particular environmental conditions.
● Performing maintenance incorrectly or not at all.
● Tampering or unsafe repairs.
● Use or installation by unqualified persons.
● This product contains lethal voltages and should be installed by qualified electrical
or service personnel having experience with lethal voltages.

01-04
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1.1 Product Overview
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1. Introduction
1.2 Inverter Wire Box and Connection Points
2. Safety & Warning
2.1 Safety
2.2 General Safety Instructions
4. Overview
4.1 Intelligent LED Indicators
3.9 Meter/CT Connection
3. Installation
3.1 Select a Location to Install the Inverter
3.2 Product Handling
3.4 Inverter Wiring Overview
3.6 PV Cable Installation
3.7 Battery Cable Installation
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07
2.3 Notice for Use
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3.5 Ground Cable Installation
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3.8 AC Wiring
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5. Commissioning
7. Troubleshooting ………………………………………………………………………………………………………………… 50
55
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8. Specifications
13
3.3 Mounting the Inverter
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35
5.1 Pre-Commissioning
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5.2 Power ON
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Contents
2.4 Notice for Disposal
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6. Maintenance
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6.1 Smart O&M ……………………………………………………………………………………………………………………………
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1.3 Product Features
1.4 Packaging
1.5 Tools Required for Installation
3.10 Inverter Communication
3.11 Diesel Generator Wiring
3.12 Parallel System Wiring
3.13 Inverter Remote Monitoring Connection
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4.2 Password Reset
41
5.3 Power OFF
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5.5 Initial set up
5.6 APP Interface
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9. Appendix - FAQs
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5.4 Log in the APP via Bluetooth

1. Introduction User Manual
1.1 Product Overview
The Solis S6-EH1P(3-8)K-L-PRO series is designed for residential hybrid systems.
The inverter can work with low-voltage lithium ion and Lead-acid batteries to maximize
self-consumption and provide backup power if the grid fails and there is not enough PV
power to cover load demand.
The S6-EH1P(3-8)K-L-PRO series consists of the following inverter models:
3kW,3.6kW,5kW,6kW,8kW
The 8K model is of different hardware and size from the 3-6K models.
The max.input strings number of 8K is 3,and the 3-6K is 2.
Figure 1.1
Front side view
Figure 1.2
Bottom side view
PV Module Input
DC Switch
Battery
Connection
COM
Port Antenna
COM1 COM2 COM3 GridLoadGen
LED Status Indicators
DC Disconnect Switch
Solis Data Logger (sold separately)
01

1.2 Inverter Wire Box and Connection Points
Name Description
2. COM1
3. COM2
1. DC Switch
7. PV Module Input
4. COM3
5. Load
6. Grid
8. Battery Connection
9. COM Port
10. Antenna
This is the DC disconnect switch for the PV
Conduit for AC conductors to backup loads panel should be connected here
Conduit for AC conductors to the main service panel should be connected here
1. Introduction User Manual
PV Module Input
DC Switch
Battery
Connection
COM
Port Antenna
COM1 COM2 COM3 GridLoadGen
RS485 and CAN communication cables and parallel cables should go through these
RS485 and CAN communication cables and parallel cables should go through these
Conduit for CT conductors should be connected here
Conduit for PV conductors should be connected here
Conduit for Battery conductors should be connected here
Solis data logger gets connected here-only USB version of the loggers will work
Extends the range of the inverter Bluetooth signal(for system commissiong
02

User Manual
1.3 Product Features
Integrated 2 MPPTs with 2(3-6K)/3(8K) strings, suitable for residential rooftop
installations with multiple array orientations.
Compatible with multiple brands of battery models giving customers multiple battery
options.
Safety protection with integrated AFCI function,which actively detects arc faults in the
PV Array.
Exquisite LED Indicators with built in Bluetooth to provide local operation without
Internet.
Highly Flexible
Supports up to 6 unit in parallel on Grid and Backup.Suitable for small to medium level
commercial energy storage systems.
Controllable and Upgraded via the SolisCloud APP to avoid site visits.
Integrating AC coupling function with PV grid-connected inverters.
Supports 6 customized charge and discharge time set with defined charging source.
Supports self of use/feed in priority/peak-shaving/off-grid and other working modes to
meet different application scenarios.
Supports battery saving mode to reduce the battery consumption down to 0W during
night time standby period.
Outstanding Performance
Up to 16A(3-6K)/32A (8K)of MPPT current input to support 182/210mm solar panels.
Supports 1.6 DC:AC ratio to connect more PV capacity to the energy storage system.
Up to 135A/6K,190A/8K max.charge/discharge rating with industry highest level 8kW of
backup loads support capability.
UPS level switching time(<4ms)supporting critical loads all the time.
High PV charge efficiency to prevent excess PV loss.
Support Generator connection with multiple input methods.
Intelligent Function
Safe&Reliable
Safety protection with integrated AFCI function, which actively detects arc faults in the
PV Array.
1. Introduction
03

User Manual
Back plate x1 Fastening screw x2 DC connector x 2
1.4 Packaging
Please ensure that the following items are included in the packaging with your machine:
If anything is missing, please contact your local Solis distributor.
Parallel communication
Cable x1(1m)
Quick Installation Manual x1
Quick
Installation
Manual
WiFi/GPRS Stick x1
Bluetooth ntenna x1A
Battery Temperature Sensor
able 3mC ( ) x1 L-Shaped Wrench x1
RJ45 connector x5
Inverter x1
CT x1
1. Introduction
1.5 Tools Required for Installation
Torqx T20 Screwdriver Wire Strippers 12AWG to 6AWG Wire Strippers 20AWG to 10AWG
Drill and Impact Driver
Multimeter (AC/DC amps)
Channel Locks Smart Phone
Torque Wrench Screwdriver
Technician Screwdriver Crimping Tool
04

2. Safety & Warning User Manual
2.1 Safety
The following types of safety instructions and general information appear in this
document as described below:
CAUTION
“Caution” indicates a hazardous situation which if not avoided, could result
in minor or moderate injury.
WARNING
“Warning” indicates a hazardous situation which if not avoided, could result
in death or serious injury.
DANGER
“Danger” indicates a hazardous situation which if not avoided, will result in
death or serious injury.
NOTE
“Note” provides tips that are valuable for the optimal operation of your
product.
2.2 General Safety Instructions
WARNING
Electrical installations must be done in accordance with local and national
electrical safety standards.
WARNING
Do not connect PV array positive (+) or negative (-) to ground, doing so could
cause serious damage to the inverter.
WARNING
Only devices in compliance with SELV (EN 69050) may be connected to the
RS485 and USB interfaces.
WARNING
Do not touch any internal parts until 5 minutes after disconnection
from the utility grid, PV array, and battery.
WARNING: Risk of fire
Despite careful construction, electrical devices can cause fires.
Do not install the inverter in an area containing flammable materials
or gases.
Do not install the inverter in a potentially explosive atmosphere.
05

2. Safety & Warning User Manual
CAUTION
The PV conductors are energized with high voltage DC when the PV
modules are exposed to sunlight.
CAUTION
The surface temperature of the inverter can reach up to 75℃ (167℉).
To avoid risk of burns, do not touch the surface of the inverter while it is
operating. The inverter must be installed out of direct sunlight exposure.
WARNING
To reduce the risk of fire, over-current protective devices (OCPD) are
required for all circuits connected to the inverter.
The DC OCPD shall be installed per local requirements. All photovoltaic
source and output circuit conductors shall have isolators that comply with
the NEC Article 690, Part II.
All Solis single phase inverters feature an integrated DC disconnect switch.
CAUTION
Risk of electric shock, do not remove the cover. There are no serviceable
parts inside, refer servicing to qualified and accredited service technicians.
NOTE
PV modules used with inverter must have an I EC 61730 Class A rating.
WARNING
Operations must be accomplished by a licensed electrician or a
person authorized by Solis.
WARNING
Installer must wear personal protective equipment during the
entire installation process in case of electrical hazards.
WARNING
The AC Backup Port of the inverter cannot be connected to the grid.
WARNING
Please refer to the product manual of the battery before installation
and configuration to the inverter.
Systems using this product shall be designed and built in
accordance with the NEC & local electrical codes & standards.
06

2. Safety & Warning User Manual
2.3 Notice for Use
The inverter has been constructed according to he applicable safety and technical
guidelines, use the inverter in installations that meet the following specifications only:
1. Permanent installation is required.
2. The electrical installation must be compliant with all local and national regulations &
standards.
3. The inverter must be installed according to the instructions stated in this manual.
4. The inverter must be installed according to the inverter technical specifications.
2.4 Notice for Disposal
This product shall not be disposed of with household waste.
It must be segregated and brought to an appropriate disposal facility
to ensure proper recycling.
This is to be done in order to avoid negative impacts on the environment
and human health.
Local waste management rules shall be observed and respected.
07

User Manual
WARNING: Risk of fire
Despite careful construction, electrical devices can cause fires.
Do not install the inverter in areas containing highly flammable materials
or gases.
Do not install the inverter in potentially explosive atmospheres.
The mounting structure where the inverter is installed must be fireproof.
3. Installation
3.1 Select a Location to Install the Inverter
When selecting a location for the inverter, the following criteria should be considered:
Exposure to direct sunlight may cause output power derating due to overheating
It is recommended to avoid installing the inverter in direct sunlight. The ideal location is
one where the ambient temperature does not exceed 40°C (140°F)
It is also recommended to install the inverter somewhere the rain and snow will not land
directly on it. The ideal installation location is on a north-facing wall under an eave.
Figure 3.1 Recommended Installation locations
≥15°
Indoor Direct Sun
Shade Cover
Shade Cover
Direct Rain
Rating
NEMA 4X
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User Manual
3. Installation
When selecting a location for the inverter, consider the following:
The temperature of the inverter heat-sink can reach 167°F.
The ambient temperature and relative humidity of the installation environment should
meet the following requirements:
If multiple inverters are installed on site, a minimum clearance of 12 inches should be kept
between each inverter and all other mounted equipment. The bottom of the inverter should be
at least 20 inches above of the ground or floor.
The LED status indicator lights located on the inverter's front panel should not be blocked
Adequate ventilation must be present if the inverter is to be installed in a confined space.
CAUTION: Hot Surface
Made of non-inflammable materials
Max. load bearing capacity ≥ 4 times of inverter weight
3.1.2 Consult technical data
Consult the technical specifications sections at the end of this manual for additional environmental
condition requirements (temperature range, altitude, etc.)
This model of Solis inverter must be mounted vertically (90 degrees or backwards less than or
equal to 15 degrees from 90 degrees straight up).
3.1.3 Angle of installation
3.1.1 Clearances
Figure 3.3 Load bearing structure
Load bearing surface:
Figure 3.2 Installation environment conditions
Max: +60℃
+140℉
Max: -40℃
-40℉
Max.RH : 100%
(non-condensing)
09

3.1.6 Flammable substances
Do not install near flammable substances. Maintain a minimum distance of three meters
(10 feet) from such substances.
3.1.7 Living area
Do not install in a living area where the prolonged presence of people or animals is expected.
Depending on where the inverter is installed (for example: the type of surface around the
inverter, the general properties of the room, etc.) and the quality of the electricity supply, the
sound level from the inverter can be quite high.
3.2 Product Handling
Figure 3.4 Handles used to move the inverter shown circled in red - one per side
3.1.5 Air circulation
Do not install in small, closed rooms where air cannot freely circulate.
To prevent overheating, always ensure that the air flow around the inverter is not blocked.
Please review the instruction below for handling the inverter:
1. The red circles below denote cutouts on the product package.
Push in the cutouts to form handles for moving the inverter (see Figure 3.4).
2. Two people are required to remove the inverter from the shipping box. Use the handles
integrated into the heat sink to remove the inverter from the carton.
3. When setting the inverter down, do it slowly and gently. This ensures that the internal
components and the outer chassis do not take any damage.
3.1.4 Avoiding direct sunlight
Installation of the inverter in a location exposed to direct sunlight should to be avoided.
Direct exposure to sunlight could cause:
Power output limitation (with a resulting decreased energy production by the system).
Premature wear of the electrical/electromechanical components.
Premature wear of the mechanical components (gaskets) and user interface.
User Manual
3. Installation
10

Visibility of the LED indicator lights should be considered.
Adequate ventilation around the inverter must be provided.
NOTE
Nothing should be stored on top of or placed against the inverter.
The inverter must be mounted vertically with a maximum incline of +/- 5 degree.
Exceeding this may cause the output power to derate.
Figure 3.5 Inverter Mounting Clearances
Mount the inverter on a wall or structure capable of bearing the weight of the machine.
3.3 Mounting the Inverter
User Manual
3. Installation
To avoid overheating, always make sure the flow of air around the inverter is not
blocked. A minimum clearance of 250mm should be kept between inverters or
objects and 800mm clearance between the bottom of the machine and the ground.
≥250mm ≥250mm
≥500mm
≥800mm
≥1200mm
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User Manual
3. Installation
12
The inverter shall be mounted vertically.
The steps to mount the inverter are listed below:
1. Select the mounting height of the bracket and mark the mounting holes.
For brick walls, the position of the holes should be suitable for the expansion bolts.
WARNING:
The inverter must be mounted vertically.
Once a suitable location has be found accordingly to 3.1 using figure 3.6 mount the wall
bracket to the wall.
Dimensions of mounting bracket:
Figure 3.6 Inverter wall mounting
unit:mm
Figure 3.7 Wall Mount Bracket
2. Lift up the inverter (be careful to avoid body strain), and align the back bracket on the
inverter with the convex section of the mounting bracket. Hang the inverter on the
mounting bracket and make sure the inverter is secure (see Figure 3.7)
3-OB11*6.8
407.5
358
322
180 177 222
Φ6.8

Connection Points
From the PV array to the DC+
and DC- terminals in the inverter
From the battery (+) and (-) terminals to
the inverter BAT+ and BAT- terminals
From the OCPD in the main service panel to
the AC-GRID L1 and L2 terminals
From the backup loads subpanel OCPD to
the inverter AC-BACKUP L1 and L2 terminals
From the main service panel ground bar to
the ground bar inside the inverter wire box
PV DC connection
to the inverter
Battery DC connection
to the inverter
Inverter AC connection
to the main service panel
Inverter AC connection
to the backup subpanel
PV Cables
Battery Cables
AC Grid Cables
AC Backup Cables
Ground Cables
From meter to terminal Meter_A and
Meter_B. For more details, refer to
figure 4.2.2 Installing the energy meter
From battery to terminal CAN-L and
CAN-H. For more details, refer to
figure 4.2.3 Installing the battery
USB COM port at the bottom of the inverter
(For more details, please refer to the
Solis data logger product manual)
Communication
between inverter & meter
Communication between
the inverter & the battery
Monitoring of the system
on SolisCloud
Meter RS 485 cable
Battery CAN cable
Data Logger
(Optional)
Grounding conductors
for the system
Purpose
NOTE
Conductor dimensions and OCPD sizing to be determined in accordance
with the national electrical code (NEC) and local standards.
3.4 Inverter Wiring Overview
User Manual
3. Installation
The Appendix section of this manual contains single-line wire diagrams that show how
the equipment interconnects. Please use the single-line diagram when planning the
conduit paths and determining the wire requirements.
13

3.5 Ground Cable Installation
1. It is recommended to use copper wire for the chassis ground. Either solid conductor or
stranded wire is acceptable. Refer to local code standard for wire sizing.
2. Attach OT terminal: M4.
To connect the grounding terminal on the heat sink, please follow the steps below:
A
B
IMPORTANT
3. Strip the ground cable insulation to a suitable length. (see Figure 3.9)
4. Crimp a ring connector onto the cable and then connect it to the chassis ground terminal
Figure 3.9 External Grounding Conductor Terminal
For multiple inverters in parallel , all inverters should be connected to the
same ground point to eliminate the possibility of a voltage potential existing
between inverter grounds.
User Manual
3. Installation
An external ground connection is provided at the right side of inverter.
Prepare OT terminals: M4. Use proper tooling to crimp the lug to the terminal.
Connect the OT terminal with ground cable to the right side of inverter. The torque is 2N.m.
Earth wire
Earth wire
M4 Screw removed
Torque: 2N.m
14
Figure 3.8 Connect the external grounding conductor

User Manual
3. Installation
15
3.6 PV Cable Installation
Negative terminal
Positive terminal
Before connecting inverter, please make sure the PV array open circuit
voltage is within the limit of the inverter.
Please use approved DC cable for PV system.
4.0~6.0 4.0（12AWG）
(12~10AWG)
Cable type
Cross section（mm²）
Range
Industry generic P V cable
Recommended value
1. Select a suitable DC cable and strip the wires out by 7±0.5mm. Please refer to the table
below for specific specifications.
7±0.5mm
2. Take the DC terminal out of the accessory bag, turn the screw cap to disassemble it,
and take out the waterproof rubber ring.
Nut Waterproof collar
Figure 3.10
Figure 3.11
Before connection, please make sure the polarity of the output voltage of
PV array matches the“DC+”and“DC-”symbols.

User Manual
3. Installation
16
Negative terminal
Positive terminal
3. Pass the stripped DC cable through the nut and waterproof rubber ring.
4. Connect the wire part of the DC cable to the metal DC terminal and crimp it with a special
DC terminal crimping tool.
Negative terminal
Positive terminal
Squeeze
5. Insert the crimped DC cable into the DC terminal firmly, then insert the waterproof rubber
ring into the DC terminal and tighten the nut.
Tighten
After you hear a "click", pull gently to check for a firm engagement.
Click
Negative terminal
Positive terminal
Figure 3.12
Figure 3.13
Figure 3.14

User Manual
3. Installation
17
6. Measure PV voltage of DC input with multimeter, verify DC input cable polarity.
7. Connect the wired DC terminal to the inverter as shown in the figure, and a slight
"click" is heard to prove the connection is correct.
+
-
CAUTION:
If DC inputs are accidently reversely connected or inverter is faulty or not
working properly, it is NOT allowed to turn off the DC switch. Otherwise it
may cause DC arc and damage the inverter or even lead to a fire disaster.
The correct actions are:
*Use a clip-on ammeter to measure the DC string current.
*If it is above 0.5A, please wait for the solar irradiance reduces until the
current decreases to below 0.5A.
*Only after the current is below 0.5A, you are allowed to turn off the DC
switches and disconnect the PV strings.
* In order to completely eliminate the possibility of failure, please disconnect
the PV strings after turning off the DC switch to aviod secondary failures due
to continuous PV energy on the next day.
Please note that any damages due to wrong operations are not covered in
the device warranty.
Figure 3.15
Figure 3.16
Click