FoxESS H1 Series User manual

H1/AC1 SERIES
User Manual
In order to prevent improper operation before use, please carefully read this
manual.

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Table of Contents
1. Notes on This Manual.......................................................................................................................2
1.1 Scope of Validity .........................................................................................................................2
1.2 Target Group...............................................................................................................................2
1.3 Symbols Used ............................................................................................................................2
2. Safety ...............................................................................................................................................3
2.1 Appropriate Usage......................................................................................................................3
2.2 PE Connection and Leakage Current .........................................................................................4
2.3 Surge Protection Devices (SPDs) for PV Installation..................................................................4
3. Introduction.......................................................................................................................................5
3.1 Basic Features............................................................................................................................5
3.2 Dimensions.................................................................................................................................6
3.3 Terminals of Inverter ...................................................................................................................7
4. Technical Data ..................................................................................................................................8
4.1 PV Input (For Hybrid Only) .........................................................................................................8
4.2 Battery ........................................................................................................................................8
4.3 AC Output/Input ..........................................................................................................................9
4.4 EPS Output.................................................................................................................................9
4.5 Efficiency, Safety and Protection ..............................................................................................10
4.6 General Data ............................................................................................................................10
5. Installation ......................................................................................................................................11
5.1 Check for Physical Damage .....................................................................................................11
5.2 Packing List ..............................................................................................................................11
5.3 Mounting...................................................................................................................................12
6. Electrical Connection ......................................................................................................................14
6.1 PV Connection (For Hybrid Only) .............................................................................................14
6.2 Battery Connection ...................................................................................................................15
6.3 Grid Connection........................................................................................................................16
6.4 Earth Connection......................................................................................................................19
6.5 Communication Device Installation (Optional) ..........................................................................19
6.6 EPS Connection .......................................................................................................................26
6.7 Inverter Start-Up .......................................................................................................................28
6.8 Inverter Switch Off ....................................................................................................................28
7. Firmware Upgrading .......................................................................................................................29
8. Operation..........................................................................................................................................30
8.1 Control Panel............................................................................................................................30
8.2 Function Tree............................................................................................................................31
9. Maintenance.....................................................................................................................................31
9.1 Alarm List..................................................................................................................................31
9.2 Troubleshooting and Routine Maintenance ..............................................................................37
10. Decommissioning..............................................................................................................................38
10.1 Dismantling the Inverter .........................................................................................................38
10.2 Packaging...............................................................................................................................38
10.3 Storage and Transportation.............................................................................................38

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1. Notes on This Manual
1.1 Scope of Validity
This manual describes the assembly, installation, commissioning, maintenance and troubleshooting of
the following model(s) of Fox products:
H1- 3.0-EH1- 3.7-EH1- 4.6-EH1- 5.0-E H1- 6.0-E
AC1- 3.0-E AC1- 3.7-E AC1- 4.6-E AC1- 5.0-E AC1-6.0-E
Note: Please keep this manual where it will be accessible at all times.
1.2 Target Group
This manual is for qualified electricians. The tasks described in this manual only can be performed by
qualified electricians.
1.3 Symbols Used
The following types of safety instructions and general information appear in this document as described
below:
Danger!
“Danger” indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
Warning!
“Warning” indicates a hazardous situation which, if not avoided, could result in death
or serious injury.
Caution!
“Caution” indicates a hazardous situation which, if not avoided, could result in minor
or moderate injury.
Note!
“Note” provides important tips and guidance.
This section explains the symbols shown on the inverter and on the type label:
Symbols
Explanation
Symbol Explanation CE mark. The inverter complies with the requirements of the
applicable CE 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!

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Danger.
Risk of electric shock!
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.
Read the manual.
Product should not be disposed as household waste.
2. Safety
2.1 Appropriate Usage
H1/AC1 series inverters are designed and tested in accordance with international safety
requirements. However, certain safety precautions must be taken when installing and operating this
inverter. The installer must read and follow all instructions, cautions and warnings in this installation
manual.
-All operations including transport, installation, start-up and maintenance, must be carried out by
qualified, trained personnel.
-The electrical installation & maintenance of the inverter shall be conducted by a licensed
electrician and shall comply with local wiring rules and regulations.
-Before installation, check the unit to ensure it is free of any transport or handling damage, which
could affect insulation integrity or safety clearances. Choose the installation location carefully
and adhere to specified cooling requirements. Unauthorized removal of necessary protections,
improper use, incorrect installation and operation may lead to serious safety and shock hazards
or equipment damage.
-Before connecting the inverter to the power distribution grid, contact the local power distribution
grid company to get appropriate approvals. This connection must be made only by qualified
technical personnel.
-Do not install the equipment in adverse environmental conditions such as in close proximity to
flammable or explosive substances; in a corrosive or desert environment; where there is
exposure to extreme high or low temperatures; or where humidity is high.
-Do not use the equipment when the safety devices do not work or are disabled.
-Use personal protective equipment, including gloves and eye protection during the installation.
-Inform the manufacturer about non-standard installation conditions.
-Do not use the equipment if any operating anomalies are found. Avoid temporary repairs.
-All repairs should be carried out using only approved spare parts, which must be installed in
accordance with their intended use and by a licensed contractor or authorized Fox service
representative.
-Liabilities arising from commercial components are delegated to their respective manufacturers.

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-Any time the inverter has been disconnected from the public network, please be extremely
cautious as some components can retain charge sufficient to create a shock hazard. Prior to
touching any part of the inverter please ensure surfaces and equipment are under touch safe
temperatures and voltage potentials before proceeding.
2.2 PE Connection and Leakage Current
-The end-use application shall monitor the protective conductor by residual current operated
protective device (RCD) with rated fault current Ifn≤280mA which automatically disconnects the
device in case of a fault.
-DC differential currents are created (caused by insulation resistance and through capacities of
the PV generator). In order to prevent unwanted triggering during operation, the rated residual
current of the RCD has to be min 240mA. The device is intended to connect to a PV generator
with a capacitance limit of approx. 700nf.
WARNING!
High leakage current! Earth connection essential before connecting supply.
-Incorrect grounding can cause physical injury, death or equipment malfunction and increase
electromagnetic interference.
-Make sure that grounding conductor is adequately sized as required by safety regulations.
-Do not connect the ground terminals of the unit in series in case of a multiple installation. This
product can cause current with a DC component, where a residual current operated protective
device (RCD) or monitoring device (RCM) is used for protection in case of direct or indirect
contact, only an RCD or RCM of type B is allowed on the supply side of this product.
For UK
-The installation that connects the equipment to the supply terminals shall comply with the
requirements of BS 7671.
-Electrical installation of PV system shall comply with requirements of BS 7671 and IEC
60634-7-712.
-No protection settings can be altered.
-User shall ensure that the equipment is so installed, designed and operated to maintain at all
times compliance with requirements of ESQCR22(1)(a).
For AU
-Electrical installation and maintenance shall be conducted by licensed electrician and shall
comply with Australia National Wiring Rules.
2.3 Surge Protection Devices (SPDs) for PV Installation
WARNING!
Over-voltage protection with surge arresters should be provided when the PV power system is
installed. The grid connected inverter is not fitted with SPDs in both PV input side and mains side.
Lightning will cause damage either from a direct strike or from surges due to a nearby strike.
Induced surges are the most likely cause of lightning damage in majority or installations, especially

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in rural areas where electricity is usually provided by long overhead lines. Surges may impact on
both the PV array conduction and the AC cables leading to the building. Specialists in lightning
protection should be consulted during the end use application. Using appropriate external lightning
protection, the effect of a direct lightning strike into a building can be mitigated in a controlled way,
and the lightning current can be discharged into the ground.
Installation of SPDs to protect the inverter against mechanical damage and excessive stress include
a surge arrester in case of a building with external lightning protection system (LPS) when
separation distance is kept. To protect the DC system, surge suppression device (SPD type2) should
be fitted at the inverter end of the DC cabling and at the array located between the inverter and the
PV generator, if the voltage protection level (VP) of the surge arresters is greater than 1100V, an
additional SPD type 3 is required for surge protection for electrical devices.
To protect the AC system, surge suppression devices (SPD type2) should be fitted at the main
incoming point of AC supply (at the consumer’s cutout), located between the inverter and the
meter/distribution system; SPD (test impulse D1) for signal line according to EN 61632-1. All DC
cables should be installed to provide as short a run as possible, and positive and negative cables of
the string or main DC supply should be bundled together.
Avoiding the creation of loops in the system. This requirement for short runs and bundling includes
any associated earth bundling conductors. Spark gap devices are not suitable to be used in DC
circuits once conducting; they won’t stop conducting until the voltage across their terminals is
typically below 30 volts.
3. Introduction
3.1 Basic Features
H1/AC1 series is high-quality inverters which can convert solar energy to AC energy and store energy
into battery. The inverter can be used to optimize self-consumption, store in the battery for future use or
feed-in to public grid. Work mode depends on PV energy and user’s preference.
•System advantages:
-Advanced DSP control technology.
-Utilizes the latest high-efficiency power component.
-Advanced anti-islanding solutions.
-IP65 protection level.
-Max. Efficiency up to 97.8%. EU efficiency up to 97.0%. THD<3%.
-Safety & Reliability: Transformerless design with software and hardware protection.
-Export limitation (CT/Meter/DRM0/ESTOP).
-Power factor regulation. Friendly HMI.
-LED status indications.
-LCD display technical data, human-machine interaction through four touch keys.
-PC remote control.

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•Work modes:
Work modes
Description
Self-use
(with PV Power)
Priority: load>battery>grid
The energy produced by the PV system is used to optimize self-consumption.
The excess energy is used to charge the batteries, then exported to gird.
Self-use
(without PV Power)
When no PV supplied, battery will discharge for local loads firstly, and grid will
supply power when the battery capacity is not enough.
Feed in priority
Priority: load>grid>battery
In the case of the external generator, the power generated will be used to supply
the local loads firstly, then export to the public grid. The redundant power will
charge the battery.
Force time use
Priority: battery>load>grid (when charging)
Priority: load>battery>grid (when discharging)
This mode applies the area that has electricity price between peak and valley.
User can use off-peak electricity to charge the battery.
The charging and discharging time can be set flexibly, and it also allows to
choose whether charge from the grid or not.
Back up mode
When the grid is off, system will supply emergency power from PV or battery
to supply the home loads (Battery is necessary in EPS mode).
3.2 Dimensions

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3.3 Terminals of Inverter
Note: Only authorized personnel are permitted to set the connection.
Item
Description
A
DC Switch (For Hybrid Only)
B
PV1 (For Hybrid Only)
C
PV2 (For Hybrid Only)
D
Battery Connector
E
METER/CT/RS485
F
Ethernet
G
BMS
H
DRM
I
BACK-UP
J
USB
K
AC Connector
L
Waterproof Lock Valve
M
WiFi / GPRS
N
COM
O
Grounding Screw

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4. Technical Data
4.1 PV Input (For Hybrid Only)
Model
H1-3.0-E
H1-3.7-E
H1-4.6-E
H1-5.0-E
H1-6.0-E
PV
Max. recommended DC power [W]
3900
4680
5980
6500
7800
Max. DC voltage [V]
600
Nominal DC operating voltage [V]
360
Max. input current
(input A / input B) [A]
A:13.5 / B:13.5
Max. short circuit current
(input A / input B) [A]
A:15 / B:15
Max. inverter backfeed current to
the array [mA]
0
MPPT voltage range [V]
80-550
80-550
80-550
80-550
80-550
Start-up voltage [V]
75
75
75
75
75
No. of MPP trackers
2
2
2
2
2
Strings per MPP tracker
1
1
1
1
1
DC switch
Optional
4.2 Battery
Model
H1-3.0-E
AC1-3.0-E
H1-3.7-E
AC1-3.7-E
H1-4.6-E
AC1-4.6-E
H1-5.0-E
AC1-5.0-E
H1-6.0-E
AC1-6.0-E
BATTERY
Max. charge current [A]
40
Max. discharge current [A]
40
Communication interfaces
CAN / RS485
Reverse connect protection
Yes

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4.3 AC Output/Input
Model
H1-3.0-E
AC1-3.0-E
H1-3.7-E
AC1-3.7-E
H1-4.6-E
AC1-4.6-E
H1-5.0-E
AC1-5.0-E
H1-6.0-E
AC1-6.0-E
AC OUTPUT
Nominal AC power [VA]
3000
3680
4600
5000
6000
Max. apparent AC power
[VA]
3300
3680/4048 (1)
4600/5060 (2)
5500
6000/6600 (4)
Rated grid voltage
(AC voltage range) [V]
220 / 230 / 240 (180 to 270)
Rated grid frequency [Hz]
50 / 60, ±5
Nominal AC current [A]
13
16
20
21.7
26.1
Max. AC current [A]
14.4
16/17.6(3)
22
23.9
26.1/28.7 (5)
Inrush current
9.6A@50us
Maximum output fault
current[A]
130A@ 10us
Maximum output over
current protection(A)
35
36.7
45.8
47.7
57.4
Displacement power factor
0.8 leading to 0.8 lagging
Total harmonic distortion
(THDi, rated power)
<3%
AC INPUT
Max. AC power [VA]
3000+4000
(Bypass)
3680+4000
(Bypass)
4600+5000
(Bypass)
5000+5000
(Bypass)
6000+6000
(Bypass)
Max. AC current[A]
31.8
34.9
43.7
45.5
54.6
Rated grid voltage
(AC voltage range) [V]
220 / 230 / 240 (180 to 270)
Rated grid frequency [Hz]
50 / 60, ±5
Note: [1] 3680 for G98,4048 for other country, [2] 4600 for VDE-AR-N 4105,5060 for other country
[3] 16for G98,17.6 for other country, [4][5] for Italy and Thailand.
4.4 EPS Output
Model
H1-3.0-E
AC1-3.0-E
H1-3.7-E
AC1-3.7-E
H1-4.6-E
AC1-4.6-E
H1-5.0-E
AC1-5.0-E
H1-6.0-E
AC1-6.0-E
EPS OUTPUT (WITH BATTERY)
Max. EPS power [VA]
5000
5000
6000
6000
6000
EPS rated voltage[V], Frequency [Hz]
230VAC, 50 / 60
EPS peak power[W]
6000,60s
7200,60s
Max. EPS current [A]
21.7
21.7
26.1
26.1
26.1
Switch time [s]
<20ms
Total harmonic distortion
(THDv, linear load)
<2%
Compatible with the generator
Yes

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4.5 Efficiency, Safety and Protection
Model
H1-3.0-E
AC1-3.0-E
H1-3.7-E
AC1-3.7-E
H1-4.6-E
AC1-4.6-E
H1-5.0-E
AC1-5.0-E
H1-6.0-E
AC1-6.0-E
EFFICIENCY
MPPT efficiency
99.90%
99.90%
99.90%
99.90%
99.90%
Euro-efficiency
97.00%
97.00%
97.00%
97.00%
97.00%
Max. efficiency
97.80%
97.80%
97.80%
97.80%
97.80%
Max. battery charge efficiency
(PV to BAT) (@full load)
98.50%
98.50%
98.50%
98.50%
98.50%
Max. battery discharge efficiency
(BAT to AC) (@full load)
97.00%
97.00%
97.00%
97.00%
97.00%
Standby consumption [W] (Idle)
<3
STANDARD
Safety
IEC62109-1 /-2 / IEC62040/
EMC
EN 61000-6-1 / EN 61000-6-2 / EN 61000-6-3
Certification
G98 / G99 / AS4777.2-2015 / EN50549-1 / CEI 0-21 / VDE-AR-N
4105 / NRS097-2-1 and so on
4.6 General Data
Dimensions (WxHxD) [mm]
430*410*178
Weight [kg]
23
Cooling concept
Natural
Topology
Non-Isolated
Communication
Ethernet, Meter, WiFi/GPRS/LAN (optional), DRM, USB, CT
LCD display
Backlight 16*4 character
ENVIRONMENT LIMIT
Ingress protection
IP65
Protective Class
Class I
Operating temperature range [°C]
-25…... +60°C (derating at +45°C)
Humidity [%]
0～100 (non-condensing)
Altitude [m]
<2000
Storage temperature [°C]
-40…... +70°C
Noise emission(typical) [dB]
<40
Over voltage category
III(AC), II(DC)

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5. Installation
5.1 Check for Physical Damage
Make sure the inverter is intact during transportation. If there is any visible damage, such as cracks,
please contact your dealer immediately.
5.2 Packing List
Open the package and take out the product, please check the accessories first. The packing list shown
as below.
A B C D E
K L M N O
F G H I J
P
Object
Quantity
Description
Object
Quantity
Description
A
1
Inverter
I
1
Earth terminal
B
1
Bracket
J
1
Communication connector
C
4
PV connectors (for hybrid only)
(2*positive, 2*negative)
K
1
Product manual
D
4
PV pin contacts (for hybrid only)
(2*positive, 2*negative)
L
1
Quick installation guide
E
2
AC connectors
M
1
CT (with 10m cable)
F
2
Battery connectors
(1*positive, 1*negative)
N
1
CT extension connector
G
2
Battery pin contacts
(1*positive, 1*negative)
O
1
WiFi/LAN/GPRS (Optional)
H
5
Expansion tubes&
Expansion screws
P
1
Meter (Optional)

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5.3 Mounting
•Installation Precaution
Make sure the installation site meets the following conditions:
-Not in direct sunlight.
-Not in areas where highly flammable 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 2000m above sea level.
-Not in environment of precipitation or humidity (> 95%).
-Under good ventilation condition.
-The ambient temperature in the range of -25°C to +60°C.
-The slope of the wall should be within +5*.
-The wall hanging the inverter should meet conditions below:
1. Solid brick/concrete, or strength equivalent mounting surface;
2. Inverter must be supported or strengthened if the wall's strength isn't enough (such as wooden wall,
the wall covered by thick layer of decoration).
Please avoid direct sunlight, rain exposure, snow laying up during installation and operation.
•Space Requirement
•Mounting Steps
Tools required for installation:
-Manual wrench;
-Electric drill (drill bit set 8mm);
-Crimping pliers;
-Stripping pliers;
-Screwdriver.
Position
Min Size
Left
30cm
Right
30cm
Top
30cm
Bottom
30cm
Front
30cm

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Step 1: Fix the bracket on the wall
Choose the place you want to install the inverter. Place the bracket on the wall and mark the position of
the 5 holes from bracket.
Drill holes with electric drill, make sure the holes are at least 50mm deep, and then tighten the expansion
tubes.
Insert the expansion tubes into the holes and tighten them. Install the bracket with the expansion screws.

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Step 2: Match the inverter with wall bracket
Hang the inverter over the bracket, slightly lower the inverter, and make sure the 2 mounting bars on the
back are fixed with the 2 grooves from bracket properly.
6. Electrical Connection
6.1 PV Connection (For Hybrid Only)
Step 1: PV String Connection
H1 series inverters can be connected with 2-strings of PV modules. Please select suitable PV modules
with high reliability and quality. Open circuit voltage of module array connected should be less than 600V,
and operating voltage should be within the MPPT voltage range.
Note!
Please choose a suitable external DC switch if the inverter does not have a built-in DC switch.
Warning!
PV module voltage is very high and within a dangerous voltage range, please comply with the
electric safety rules when connecting.
Warning!
Please do not make PV positive or negative to ground!
Note!
PV modules: Please ensure they are the same type, have the same output and specifications,
are aligned identically, and are tilted to the same angle. In order to save cable and reduce DC
loss, we recommend installing the inverter as near to the PV modules as possible.

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Step 2: PV Wiring
•Turn off the DC switch.
•Choose 12 AWG wire to connect the PV module.
•Trim 6mm of insulation from the wire end.
•Separate the DC connector (PV) as below.
•Insert striped cable into pin contact and ensure all conductor strands are captured in the pin contact.
•Crimp pin contact by using a crimping plier. Put the pin contact with striped cable into the
corresponding crimping pliers and crimp the contact.
•Insert pin contact through the cable nut to assemble into back of the male or female plug. When you
feel or hear a “click” the pin contact assembly is seated correctly.
•Unlock the DC connector
- Use the specified wrench tool.
- When separating the DC + connector, push the tool down from the top.
- When separating the DC - connector, push the tool down from the bottom.
- Separate the connectors by hand.
6.2 Battery Connection
•Turn off the DC switch.
•Choose 10 AWG wire to connect the battery.
•Trim 6mm of insulation from the wire end.

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•Separate the DC connector (battery) as below.
Plug Pin contact cable nut
•Insert striped cable into pin contact and ensure all conductor strands are captured in the pin contact.
•Crimp pin contact by using a crimping plier. Put the pin contact with striped cable into the
corresponding crimping pliers and crimp the contact.
•Insert pin contact through the cable nut to assemble into back of the male or female plug. When you
feel or hear a “click” the pin contact assembly is seated correctly.
•Unlock the DC connector
- Use the specified wrench tool.
- When separating the DC + connector, push the tool down from the top.
- When separating the DC - connector, push the tool down from the bottom.
- Separate the connectors by hand.
6.3 Grid Connection
Step 1: Grid String Connection
H1/AC1 series inverters are designed for single-phase grid. Voltage range is 220/230/240V; frequency is
50/60Hz. Other technical requests should comply with the requirement of the local public grid.
Note:
1. If you don't use the back-up function or use on-grid power to charge the battery, the wiring
conduct core section can use 4-6mm2.
2. A micro-breaker for max output overcurrent protection device shall be installed between inverter
and grid, and the current of the protection device is referred to the table above, any load SHOULD
NOT be connected with the inverter directly.
Model
H1-3.0-E
AC1-3.0-E
H1-3.7-E
AC1-3.7-E
H1-4.6-E
AC1-4.6-E
H1-5.0-E
AC1-5.0-E
H1-6.0-E
AC1-6.0-E
Cable (AC)
8.0mm²
8.0mm²
8.0mm²
8.0mm²
10.0mm²
Cable (BACK-UP)
4.0mm²
4.0mm²
6.0mm²
6.0mm²
6.0mm²
Micro-Breaker
50A
50A
63A
63A
63A

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Step 2: Grid Wiring
•Check the grid voltage and compare with the permitted voltage range (refer to technical data).
•Disconnect the circuit-breaker from all the phases and secure against re-connection.
•Trim the wires:
- Trim all the wires to 52.5mm and the PE wire to 55mm.
- Use the crimping pliers to trim 12mm of insulation from all wire ends as below.
Note: Please refer to local cable type and color for actual installation.
A. BACK-UP Wiring
•Separate the BACK-UP plug into three parts as below.
- Hold middle part of the female insert, rotate the back shell to loosen it, detach it from female inset.
- Remove the cable nut (with rubber insert) from the back shell.
•Slide the cable nut and then the back shell onto the cable.
•Push the threaded sleeve into the socket, tighten up the cap on the terminal.
•Push the threaded sleeve to connection terminal until both are locked tightly on the inverter.
L: Brown/Red Wire
N: Blue/Black Wire
PE: Yellow & Green Wire

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•Loosen the cap on the terminal, pull the threaded sleeve out of the socket.
B. AC Wiring
•Separate the AC plug into three parts as below.
- Hold middle part of the female insert, rotate the back shell to loosen it, detach it from female inset.
- Remove the cable nut (with rubber insert) from the back shell.
•Slide the cable nut and then the back shell onto the cable.
•Push the threaded sleeve into the socket, tighten up the cap on the terminal.
•Push the threaded sleeve to connection terminal until both are locked tightly on the inverter.
•Remove the AC connector: Press the bayonet out of the slot with a small screwdriver or the unlock
tool and pull it out, or unscrew the threaded sleeve, then pull it out.

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6.4 Earth Connection
Screw the ground screw with screwdriver as shown below:
6.5 Communication Device Installation (Optional)
H1/AC1 series inverter are available with multiple communication options such as WiFi, LAN, GPRS,
RS485 and Meter with an external device.
Operating information like output voltage, current, frequency, fault information, etc., can be monitored
locally or remotely via these interfaces.
•WiFi/LAN/GPRS (Optional)
The inverter has an interface for WiFi/LAN/GPRS devices that allow this device to collect information
from inverter; including inverter working status, performance etc., and update that information to
monitoring platform (the WiFi/LAN/GPRS device is available to purchase from your local supplier).
Connection steps:
1. For GPRS device: Please insert the SIM Card (please refer to the GPRS product manual for more
details).
2. For LAN device: Please complete the wiring between router and LAN device (please refer to the LAN
product manual for more details).
3. Plug the WiFi/LAN/GPRS device into “WiFi/GPRS” port at the bottom of the inverter.
4. For WiFi device: Connect the WiFi with the local router, and complete the WiFi configuration (please
refer to the WiFi product manual for more details).
5. Set-up the site account on the Fox monitoring platform (please refer to the monitoring user manual
for more details).