V-TAC VT-66036103 User manual

INSTRUCTION MANUAL
HYBRID SOLAR INVERTER SINGLE PHASE
IN CASE OF ANY QUERY/ISSUE WITH THE PRODUCT, PLEASE REACH OUT TO US AT: [e-mail]
FOR MORE PRODUCTS RANGE, INQUIRY PLEASE CONTACT OUR DISTRIBUTOR OR NEAREST
DEALERS. V-TAC EUROPE LTD. BULGARIA, PLOVDIV 4000, BUL.L.KARAVELOW 9B
Thank you for selecting and buying V-TAC Product. V-TAC will serve you
the best. Please read these instructions carefully & keep this user manual
handy for future reference. If you have any another query, please contact
our dealer or local vendor from whom you have purchased the product.
They are trained and ready to serve you at the best.
INTRODUCTION
Multi-Language Manual QR CODE
Please scan the QR code to access the manual
in multiple languages.

WARNING
1. Please make sure to turn off the power before starting the installation.
2. Installation must be performed by a qualified electrician.
• "Danger" indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
• "Warning" indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
• "Caution" indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury..
• Danger to life due to high voltages in the inverter!
• All work must be carried out by qualified electrician.
• The appliance is not to be used by children or persons with reduced physical
sensory or mental capabilities, or lack of exrerience and knowledge, unless
they have been given supervision or instruction.
• Children should be supervised to ensure that they do not play with the
appliance.
• Danger of burn injuries due to hot enclosure parts!
• During operation, the upper lid of the enclosure and the enclosure body may
become hot.
• Only touch the lower enclosure lid during operation.
• Possible damage to health as a result of the effects of radiation!
• Do not stay closer than 20 cm to inverter for any length of time.
• Ensure input DC voltage ≤Max. DC voltage .Over voltage may cause perma-
nent damage to inverter or other losses, which will not be included in warran-
ty!
• Authorized service personnel must disconnect both AC and DC power from
inverter before attempting any maintenance or cleaning or working on any
circuits connected to inverter.
• Do not operate the in verter when the device is running
• 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.
• High leakage current! Earth connection essential before connecting supply.
Note！
• "Note" provides tips that are valuable for the optimal operation of our
product.
• Grounding the PV generator.
• Comply with the local requirements for grounding the PV modules and the PV
generator. It is recommends connecting the generator frame and other
electrically conductive surfaces in a manner which ensures continuous conduc-
tion and ground these in order to have optimal protection of system and
persons.
20
PAP

• Prior to the application, please read this section carefully to ensure correct and safe
application. Please keep the user manual properly.
• Accesories only together with the inverter shipment are recommended here. Otherwise
may result in a risk of fire, electric shock, or injury to person.
• Make sure that existing wiring is in good condition and that wire is not undersized.
• Do not disassemble any parts of inverter which are not mentioned in installation guide.
It contains no user-serviceable parts. See Warranty for instructions on obtaining service.
Attempting to service the inverter yourself may result in a risk of electric shock or fire
and will void your warranty.
• Keep away from flammable, explosive materials to avoid fire disaster. The installation
place should be away from humid or corrosive substance.
• Authorized service personnel must use insulated tools when installing or working with
this equipment.
• PV modules shall have an IEC 61730 class A rating.
• Never touch either the positive or negative pole of PV connecting device.
• Strictly prohibit touching both of them at the same time.
• The unit contains capacitors that remain charged to a potentially lethal voltage after the
MAINS , battery and PV supply has been disconnected.
• Hazardous voltage will present for up to 5 minutes after disconnection from power
supply.
• CAUTION-RISK of electric shock from energy stored in capacitor, Never operate on the
inverter couplers, the MAINS cables, Battery cables, PV cables or the PV generator when
power is applied. After switching o ffthe PV , battery and Mains, always wait for 5minutes
to let the intermediate circuit capacitors discharge before unpluging DC ,battery inplug
and MAINS couplers.
• When accessing the internal circuit of inverter, it is very important to wait 5 minutes
before operating the power circuit or demounting the electrolyte capacitors inside the
device. Do not open the device before hand since the capacitors require time sufficiently
discharge!
• Measure the voltage between terminals UDC+ and UDC- with a multi-meter(impedance
at least 1Mohm) to ensure that the device is discharged before beginning work (35VDC)
inside the device.
Surge protection devices (SPDs) for PV installation
• Lightning will cause a 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 installa-
tions, especially in rural areas where electricity is usually provided by long overhead lines.
Surge may be included 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 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 ine accord-
ing l 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.
• 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 more than 30 volts.
• Anti-Islanding Effect Islanding effect is a special phenomenon that grid-connected PV
system still supply power to the nearby grid when the voltage loss is happened in the
power system. It is dangerous for maintenance personnel and the public. X1-Hybrid
series inverter provide Active Frequency Drift(AFD) to prevent islanding effect.
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≤240mA which automatically
disconnects the device in case of a fault. The device is intended to connect to a PV
generator with a capacitance limit of approx 700nf.
• Incorrect grounding can cause physical injury, death or equipment malfunction and
increase electromagnetic.
• Make sure that grounding conductor is adequately sized as required by safety regula-
tions.
• Do not connect the ground terminals of the unit in series in case of a multiple installa-
tion. This product can cause current with a d.c component, Where a residual current
operated protective (RCD) or monitoring (RCM) device 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 United Kingdom
• 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
60364-7-712.
• No protection settings can be altered.
• User shall ensur e that equipment is so installed, designed and operated to maintain at
all times compliance with the requirements of ESQCR22(1)(a). For Australia and New
Zealand
• Electrical installation and maintenance shall be conducted by licensed electrician and
shall comply with Australia National Wiring Rules. Battery Safety Instructions BD series
inverter should be worked with high voltage battery, for the specific parameters such as
battery type, nominal voltage and nominal capacity etc., please refer to section 4.3. As
accumulator batteries may contain potential electric shock and short-circuit current
danger, to avoid accidents that might be thus resulted, the following warnings should be
observed during battery replacement:
1: Do not wear watches, rings or similar metallic items.
2: Use insulated tools.
3: Put on rubber shoes and gloves.
4: Do not place metallic tools and similar metallic parts on the batteries.
5: Switch o ffload connected to the batteries before dismantling battery connection
terminals.
6: Only personal with proper expertise can carry out the maintenance of accumulator
batteries.

EXPLANATION OF SYMBOL
Symbol Explanation
CE mark.
The inverter complies with the requirements of the applicable CE
guildlines.
TUV certified.
RCM remark.
SAA certification.
Beware of hot surface. The inverter can become hot during operation.
Avoid contact during operation.
Danger of high voltages. Danger to life due to high voltages in the
inverter!
Danger.
Risk of electric shock!
The inverter can not be disposed together with the household waste.
Disposal information can be found in the enclosed documentation.
Do not operate this inverter until it is isolated from battery, mains
and on-site PV generation suppliers.
Danger to life due to high voltage. There is residual voltage existing
in the inverter after powering off, which needs 5 min to discharge.
• Wait 5 min before you open the upper lid or the DC lid.
Observe enclosed documentation.

This chapter follows the requirements of the European low voltage directives, which
contains the safety instructions and conditions of acceptability for the endues system,
which you must follow when installing, operating and servicing the unit. If ignored, physical
injury or death may follow, or damage may occur to the unit. Read this before you work on
the unit. If you are unable to understand the dangers, warnings, cautions or instructions,
please contact an authorized service dealer before installing. Operating and servicing the
unit. The Grid connected inverter meets the requirement stipulated in Low Voltage Directive
(LVD) 2014/35/EU and Electromagnetic Compatibility (EMC) Directive 2014/30/EU. The unit
is based on: EN 62109-1:2010;EN 62109-2:2011;IEC 62109-1(ed.1);
IEC62109-2(ed.1);EN 61000-6-3:2007+A:2011;EN 61000-6-1:2007;EN 61000-6-2:2005.
In case of installation in PV system, startup of the unit (i.e. start of designated operation)
is prohibited until it is determined that the full system meets the requirements stipulated in
EC Directive (2014/35/EU,2014/30/EU, etc.),The grid connected inverter leave the factory
completely connecting device and ready for connection to the mains and PV supply ,the
unit shall be installed in accordance with national wiring regulations. Compliance with
safety regulations depends upon installing and configuring system correctly, including using
the specified wires. The system must be installed only by professional assemblers who are
familiar with requirements for safety and EMC. The assembler is responsible for ensuring
that the end system complies with all the relevant laws in the country where it is to be
used. The individual subassembly of the system shall be interconnected by means of the
wiring methods outlined in national/inter national such as the national electric code (NFPA)
No.70 or VDE regulation 0107.
INTRODUCTION
Hybrid Inverter series is a high quality inverter which can convert solar ene rgy 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
feedin to public grid. Work mode depends on PV energy and user's preference. It can
provide power for emergency use during the grid lost by using the energy from battery and
inverter(generated from PV).
System Diagram 1 (applies to most countries )
meter

• "Danger" indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
• "Warning" indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
• "Caution" indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury..
• Danger to life due to high voltages in the inverter!
• All work must be carried out by qualified electrician.
• The appliance is not to be used by children or persons with reduced physical
sensory or mental capabilities, or lack of exrerience and knowledge, unless
they have been given supervision or instruction.
• Children should be supervised to ensure that they do not play with the
appliance.
• Danger of burn injuries due to hot enclosure parts!
• During operation, the upper lid of the enclosure and the enclosure body may
become hot.
• Only touch the lower enclosure lid during operation.
• Possible damage to health as a result of the effects of radiation!
• Do not stay closer than 20 cm to inverter for any length of time.
• Ensure input DC voltage ≤Max. DC voltage .Over voltage may cause perma-
nent damage to inverter or other losses, which will not be included in warran-
ty!
• Authorized service personnel must disconnect both AC and DC power from
inverter before attempting any maintenance or cleaning or working on any
circuits connected to inverter.
• Do not operate the in verter when the device is running
• 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.
• High leakage current! Earth connection essential before connecting supply.
Note！
• "Note" provides tips that are valuable for the optimal operation of our
product.
• Grounding the PV generator.
• Comply with the local requirements for grounding the PV modules and the PV
generator. It is recommends connecting the generator frame and other
electrically conductive surfaces in a manner which ensures continuous conduc-
tion and ground these in order to have optimal protection of system and
persons.
System Diagram 2 (applies to wiring rules AS/NZS_3000:2012 for Australia and New Zealand )
Note!
• The instrument and switch in the above figure are provided by users
Hybrid Inverter provides multiple work modes based on different requirements.
Work Modes
meter
Inverter
PV Grid
EPS
Inverter
PV Grid
EPS
Inverter
PV
BAT EPS
Inverter
PV
BAT EPS
1.When PV, Grid, Battery is available:
A. Solar energy provides power to the loads as first priority, if solar energy is
sufficient to power all connected loads, solar energy excess power will
provides to charge battery, and then redundant power will feed to grid.
B. Solar energy provides power to the loads as first priority ,if solar energy is
not sufficient to power all connected loads, battery energy will supply power to the
loads at the same time.
C. Solar energy provides power to the loads as first priority ,if solar energy and
battery are not sufficient to power all connected loads, utility energy (Main Grid)
will supply power to the loads with solar energy at the same time.
2 .When PV, Grid is available（without battery):
A. Solar energy provides power to the loads as first priority ,if solar energy is
sufficient, the excess power will feed to grid.
B. Solar energy provides power to the loads as first priority, if solar energy is not
sufficient to power all connected loads, Grid energy will supply power to the loads
at the same time.
3 .When PV, Battery is available（Grid is disconnected):
A. Solar energy provides power to the loads as first priority ,if solar energy is
sufficient to power all connected loads, solar energy will provides to chargeb
battery.
B. Solar energy provides power to the loads as first priority ,if solar energy is not
sufficient to power all connected loads, battery energy and solar energy will supply
power to the loads at the same time.
Inverter
PV
BAT
Grid
EPS
Inverter
PV
BAT
Grid
EPS
Inverter
PV
BAT
Grid
EPS
Work modes : Self-use

• Prior to the application, please read this section carefully to ensure correct and safe
application. Please keep the user manual properly.
• Accesories only together with the inverter shipment are recommended here. Otherwise
may result in a risk of fire, electric shock, or injury to person.
• Make sure that existing wiring is in good condition and that wire is not undersized.
• Do not disassemble any parts of inverter which are not mentioned in installation guide.
It contains no user-serviceable parts. See Warranty for instructions on obtaining service.
Attempting to service the inverter yourself may result in a risk of electric shock or fire
and will void your warranty.
• Keep away from flammable, explosive materials to avoid fire disaster. The installation
place should be away from humid or corrosive substance.
• Authorized service personnel must use insulated tools when installing or working with
this equipment.
• PV modules shall have an IEC 61730 class A rating.
• Never touch either the positive or negative pole of PV connecting device.
• Strictly prohibit touching both of them at the same time.
• The unit contains capacitors that remain charged to a potentially lethal voltage after the
MAINS , battery and PV supply has been disconnected.
• Hazardous voltage will present for up to 5 minutes after disconnection from power
supply.
• CAUTION-RISK of electric shock from energy stored in capacitor, Never operate on the
inverter couplers, the MAINS cables, Battery cables, PV cables or the PV generator when
power is applied. After switching o ffthe PV , battery and Mains, always wait for 5minutes
to let the intermediate circuit capacitors discharge before unpluging DC ,battery inplug
and MAINS couplers.
• When accessing the internal circuit of inverter, it is very important to wait 5 minutes
before operating the power circuit or demounting the electrolyte capacitors inside the
device. Do not open the device before hand since the capacitors require time sufficiently
discharge!
• Measure the voltage between terminals UDC+ and UDC- with a multi-meter(impedance
at least 1Mohm) to ensure that the device is discharged before beginning work (35VDC)
inside the device.
Surge protection devices (SPDs) for PV installation
• Lightning will cause a 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 installa-
tions, especially in rural areas where electricity is usually provided by long overhead lines.
Surge may be included 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 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 ine accord-
ing l 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.
DIMENSION
1.When PV, Grid, Battery is available:
A. On charge time, solar energy will charge battery as first priority. The excess
energy will supply power to the loads.If solar energy is sufficient to supply loads
and charge battery,and If there's still some extra energy, then the excess power
will feed the power to grid
B. On charge time, solar energy will charge battery as first priority.then the excess
solar energy will supply power to loads.If solar energy is not sufficient to charge
battery and supply loads, grid will supply all the connected loads with solar energy
together.
C. On discharge time, solar energy provides power to the loads as first
priority, if solar energy is sufficient to supply loads ,and if there's still some
extra energy from solar energy ,then the excess power and battery will
deliver the power to the grid at the same time.
D. In the period of no charge or discharge, the solar power supply loads at
first priority , excess energy to the grid.
2. When Grid, Battery is available(PV is disconnected):
A. On charge time, grid will charge battery and supply power to the
connected loads at the same time.
B. On discharge time, if load power is less than battery power, battery will
supply power to loads as first priority, the excess power will be feed to grid.
C. On discharge time, if load power is more than battery power, battery and
grid will supply power to the loads at the same time.
Work modes : Peak shift
1.When PV, Grid, Battery is available:
A. Solar energy will charge battery as first priority, if solar energy is excess,
the excess power will supply load. If there's still some extra energy, then the
excess power will feed the power to grid .
B. Solar energy will charge battery as first priority, if solar energy is excess,
the excess power will supply load.If solar energy is not sufficient to charge
battery and supply loads, grid will supply power to loads.
2. When Grid,Battery is available（PV is disconnected):
Grid will supply power to load and charge battery at the same time.
Work modes : Bat priority
Inverter
PV
BAT EPS
Grid
Inverter
PV
BAT EPS
Inverter
PV
BAT EPS
Grid
Grid
Inverter
PV
BAT EPS
Grid
Inverter
BAT EPS
Grid
Inverter
BAT EPS
Grid
Inverter
BAT EPS
Grid
Inverter
BAT EPS
Grid
Inverter
BAT EPS
Grid
PV
Inverter
BAT EPS
Grid
PV

• Avoiding the creation of loops in the system.
• 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 more than 30 volts.
• Anti-Islanding Effect Islanding effect is a special phenomenon that grid-connected PV
system still supply power to the nearby grid when the voltage loss is happened in the
power system. It is dangerous for maintenance personnel and the public. X1-Hybrid
series inverter provide Active Frequency Drift(AFD) to prevent islanding effect.
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≤240mA which automatically
disconnects the device in case of a fault. The device is intended to connect to a PV
generator with a capacitance limit of approx 700nf.
• Incorrect grounding can cause physical injury, death or equipment malfunction and
increase electromagnetic.
• Make sure that grounding conductor is adequately sized as required by safety regula-
tions.
• Do not connect the ground terminals of the unit in series in case of a multiple installa-
tion. This product can cause current with a d.c component, Where a residual current
operated protective (RCD) or monitoring (RCM) device 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 United Kingdom
• 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
60364-7-712.
• No protection settings can be altered.
• User shall ensur e that equipment is so installed, designed and operated to maintain at
all times compliance with the requirements of ESQCR22(1)(a). For Australia and New
Zealand
• Electrical installation and maintenance shall be conducted by licensed electrician and
shall comply with Australia National Wiring Rules. Battery Safety Instructions BD series
inverter should be worked with high voltage battery, for the specific parameters such as
battery type, nominal voltage and nominal capacity etc., please refer to section 4.3. As
accumulator batteries may contain potential electric shock and short-circuit current
danger, to avoid accidents that might be thus resulted, the following warnings should be
observed during battery replacement:
1: Do not wear watches, rings or similar metallic items.
2: Use insulated tools.
3: Put on rubber shoes and gloves.
4: Do not place metallic tools and similar metallic parts on the batteries.
5: Switch o ffload connected to the batteries before dismantling battery connection
terminals.
6: Only personal with proper expertise can carry out the maintenance of accumulator
batteries.
Note!
1.The Update port: For on-premises upgrades.
2.The BMS port: BMS communication for lithium batteries.
3.The CT port: For external grid side CT to detect current size.
4.The DRM port, CAN port, NTC port and DRY IO port: Reserved port,
temporarily unavailable
TERMINAL OF PV INVERTER
TECHNICAL DATA
1. DC input
Object Description Object Description
A/B Ba�ery +/Ba�ery - HGrid current / DRY IO
C/D PV1+/PV1- MUSB port for upgrading
J/K PV2+/PV2- NPOWER CAN /LEAD-NTC
EDC switch IPressure valve
FWiFi port for external WiFi OEPS output
LReserved port PGrid output
GDRM/BMS PGrid output
Max. recommended DC power [W] 4600
Max. DC voltage[V] 500
Norminal DC operating voltage[V] 360
MPPT voltage range [V] 125-500
MPPT voltage range@full load [V] 150-500
Max. input current [A] 14/14
Max. short circuit current [A] 14/14
Start input voltage [V] 125
Start output voltage [V] 150
No. of MPP trackers 2
Strings per MPP tracker 1
Backfeed current to PV array 0
DC disconnection swtich /
MODEL VT-66036103
4600
500
360
125-500
150-500
14/14
14/14
125
150
2
1
0
/
VT-66036103
4600
500
360
125-500
150-500
14/14
14/14
125
150
2
1
0
/
VT-66036103
A B C D EFG H I
M
A
K L NOP
com

AC OUTPUT/INPUT
BATTERY PARAMETER
Norminal AC power[VA] 3000/3600
Max. apparent AC power[VA] 3000/3600
Rated grid voltage(range)[V] 230 (176 to 270)
Rated grid frequency[Hz] 50/60
Norminal AC current[A] 13/16
Max.AC current[A] 13/16
Displacement power factor 0.8 leading...0.8 lagging
Total harmonic distortion(THDI) < 2%
Load control optional
Norminal AC power[VA] 3000/3600
Rated grid voltage(range)[V] 230(176 to 270)
Rated grid frequency[Hz]
Norminal AC current[A] 13/16
50/60
Max.AC current[A] 13/16
Displacement power factor 0.8 leading...0.8 lagging
AC inrush current 35
MODEL
AC OUTPUT
VT-66036103
AC INPUT
Ba�ery type Lithium ba�ery
Ba�ery voltage range[V] 42-59
Recommended ba�ery voltage[V] 48
Max. charge/discharge current[A] 95/76.6
Peak charge/discharge current[A] 95/76.6
Communication interfaces CAN/RS485/WIfI/LAN/DRM
Reverse connect protection Yes
MODEL VT-66036103

Efficiency, Safety and Protection (apply to version E,I)
Efficiency, Safety and Protection (apply to version E,I)
MPPT efficiency 99.90%
Euro efficiency 97%
Max. efficiency 97.60%
Max. Ba�ery charge efficiency 95%
Max. Ba�ery discharge efficiency 95%
Over/under voltage protection YES
DC isolation protection YES
Monitoring ground fault protection YES
Grid protection YES
DC injection monitoring YES
Back feed current monitoring YES
Residual current detection YES
Anti-islanding protection YES
Over load protection YES
Over heat protection YES
VT-66036103
Safety & Protection
MODEL
EPS rated power[VA] 3000/3600
Max. EPS power[VA] 3000/3600
EPS rated voltage, Frequency 230VAC, 50/60Hz
EPS rated current[A] 13/16
Max. EPS current[A] 13/16
Switch time[s] <500ms
Total harmonic distortion(THDv) <2%
Parallel operation Yes
Compatible with the generator Yes(signal provided only)
VT-66036103MODEL

General Data (apply to version E,I)
Dimension [W/H/D](mm) 550*520*200
Dimension of packing [W/H/D](mm) 665*635*330
Net weight [kg] 25
Gross weight [kg] 31
Installation Wall-mounted
Operating temperature range[℃]-25~+60 (derating at 45)
Storage temperature [℃]-25~+60
Storage/Operation relative humidity 4%~100% (Condensing)
Altitude [m] <2000
Ingress Protection IP65(for outdoor use)
Protective Class Ⅰ
Night-time consumption <3W
Over Voltage Category Ⅱ(MAINS),Ⅱ( PV, Ba�ery)
Pollution Degree II
Cooling Nautral
Noise level ＜40dB
Inverter Topology non-isolated
Communication interface CAN/RS485/WIfI/LAN/DRM
VT-66036103MODEL

TOOLS REQUIRED FOR INSTALLATION
INSTALLATION
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.
PACKING LIST
Open the package and take out the product, please check the accessories first.
The packing list shown as below.
Installation tools: crimping pliers for binding post and RJ 45, screwdriver, manual wrench etc
Object Description
AInverter
BBracket
CExpansion screws and pan-head screws
DPV connectors (2*positive, 2*negative)
EAC terminals
FPV pin connectors (2*positive, 2*negative)
GWifi module (optional)
HGPRS module (optional)
IUser manual
B C D
E F I
GH
A

SPACE REQUIREMENT
Step 1: Screw the wall bracket on the wall
1.1. Place the bracket on the wall and mark down the position of the 4 holes.
1.2. Drill holes with driller, make sure the holes are deep enough (at least 60mm) to
support the inverter.
1.3. Install the expansion tubes in the holes, and tighten them. Then install the wall
bracket with the expansion screws.
Step 2: Place the inverter on the wall mounted bracket by holding the handle on the side.
Step 3: Tighten the fixing screws on both sides of the inverter.
Step 4: If necessary, costomer can install an anti-theft lock on the left-bottom of the
inverter.
Position Min.size
Left 300mm
Right 300mm
Top 300mm
Bo�om 300mm
Front 300mm
Table Available Space Size
300mm 300mm
300mm
300mm
Step 1

ELECTRICAL CONNECTION
Electrical connection diagram
Step 2
Step
4
Step 3,
GRID
L
N
PE
Grid side
Home Load
Meter
Main Breaker
AC Breaker
On Grid Breaker
CT
Pv1 PV2
PV Breaker
PV Breaker
Lithium BAT(48V)
BAT Breaker
(PV MAX:500V)
.
.
.
..
.
.
.
--
-
-
EPS Grid
PV
BAT
Loads
EPS
Breaker
CT

GRID CONNECTION AND EPS CONNECTION
Hybrid inverter are designed for single phase grid. Voltage is 220/230/240V, frequency is
50/60Hz. Other technical requests should comply with the requirement of the local public
grid.
Micro-breaker should be installed between inverter and grid, any load should not be
connected with inverter directly.
Step1. Check the grid voltage.
1.1 Check the grid voltage and compare with the permissive voltage range (Please refer to
technical data).
1.2 Disconnect the circuit board from all the phases and secure against re-connection.
Step2. Remove the waterproof lid from the grid port on the inverter.
Step3. Make AC and EPS wires.
3.1 Choose the appropriate wire(Cable size: refer to Table 1).
3.2 Reserve about 60mm of conductor material sectional area and remove 10mm of
insulation from the end of wire.
terminal and tighten the screws with a hexagonal wrench.
3.3 Separate the docking screw cap of the AC terminal from the housing portion and insert
stripped wires into AC
3.4 Tighten the docking screw cap and housing portion of the AC terminal.
Step4.
Connect the AC connector to the GRID port of the inverter and tighten the screw cap .
Connect the LOAD connector to the EPS port of the inverter and tighten the screw cap .
Table 1 Cable and Micro-breaker recommended
MODEL VT-66036103
E VERSION CABLE 4-5 mm²
E VERSION MICRO-BREAKER 20A
I VERSION CABLE 8-10mm²
I VERSION MICRO-BREAKER 50A

Step3
Step4
Cable Size: Refer to Tabel 4(page 24)
Note: Connect the AC connector to the GRID into grid interface.
60mm
10mm
EPS GRID
PV CONNECTION
Select PV modules with excellent function and reliable quality. Open-circuit voltage of
module arrays connected in series should be <Max. DC input voltage;operating voltage
should be conformed to MPPT voltage range.
MODEL VT-66036103 VT-66036103 VT-66036103
Max. DC Voltage (V) 500 500 500
MPPT Voltage Range(V) 125-500 125-500 125-500
Warning!
PV module voltage is very high, which already achieve dangerous voltage range,
please comply with electric safety rules when connecting.
Please do not make PV positive or negative ground!

plug pin contact cable nut
Step2
10mm
12AWG
insert
Step3
Step4
Step5
CONNECTION STEPS:
Step 1. Checking PV module to ensure PV is in open circuit state and ensure the PV+ and
PV- ports of the PV string are correct.
Step 2. Separating the DC connector.
Step 3. Wiring
3.1 Choose the 12 AWG wire to connect with the cold-pressed terminal.
3.2 Remove 10mm of insulation from the end of wire.
3.3 Insert the insulation into pin contact and use crimping plier to clamp it.
Step 4. Insert pin contact through the cable nut to assemble into back of the male or female
plug. When
you feel or heard a “click” sound the pin contact assembly is seated correctly.
Step 5. Plug the PV connector into the corresponding PV connector on inverter.

Battery Connection
Note
1.Before choosing battery, please note the maximum voltage of battery can not exceed 59V
and the rated voltage of battery can not exceed 48V, and the battery communication
should be compatible with Hybrid inverter.
2.Before connecting to battery, please install a nonpolarized DC(125A) breaker to make
sure inverter can be securely disconnected during maintenance.
3.The connecting cable between the battery and the inverter shall be at least 4AWG.
4.The battery communication can only work when the battery BMS is compatible with the
inverter.
5.To replace the battery, you need to turn off all switches and unplug the system communi-
cation line.
6.All the above wiring and operations must be carried out after the whole machine is
powered down, and all of them need professional personnel to complete
Power Connection Steps:
Step 1. Choose the 4AWG wire and strip the cable to 15mm.
Step 2. Select two O-terminals with an aperture of M6.
Step 3. Insert the stripping line into the O-terminal and clamp it with a crimping clamp.
Step 4. Remove waterproof cover plate.
Step 5. Disassemble the waterproof connector and pass the cable through the waterproof
connector.
Step 6. Connect the cable to the terminal of the inverter .
Step 7. Assemble waterproof connectors and waterproof covers plate.
Step1,2,3.
Step 4. Step 5.
Step 6, 7.
BAT
Note
Positive and negative lines are not allowed to reverse.
The positive pole on the left and the negative pole on the right.

Communication interface definition
BMS PIN Definition
Communication interface between inverter and battery is RS485 or CAN with a RJ45
connector.
The wiring sequence of the crystal head conforms to the 568B standard: orange
white, orange, green white, blue, blue white, green, brown white and brown.
DRY_IO (RJ45 PIN) Definition
Reserved dry contact interface of the inverter.
WiFi And GPRS Connection(optional)
Inverter provides a WiFi port which can collect data from inverter and transmit it to
monitoring-website by WiFi.
Step1. Plug Wifi into “COM” port at the bottom of the inverter.
Step2. Build the connection between the inverter and router.
Step3. Create a user account online. (Please check the WiFi user manual for more
details).
DRM Connection
DRM is provided to support several demand response modes by emitting control
signals as below.
Note: Only PIN6(DRM0) is available now, and other PIN functions are being devel-
oped.
18
BMS_CANH BMS_CANL
Definition
23 4 56 7 81 PIN
BMS_485A BMS_485B
GND
Definition
CAN
Rs485
.
18
DRM0 GND GND
12345678
18
COM1 NO 1 COM2
DI 1 DI 2
NC 1 NO 2
12345678
NC 2