Zeversolar Zeverlution Pro 33K. User manual

Installation and operating instructions V00 1
Contents
1 About this manual............................................................................................... 5
1.1 Validity........................................................................................................................5
1.2 Target group..............................................................................................................5
1.3 Symbols used in this manual....................................................................................6
2 Safety ..................................................................................................................7
2.1 Intended use............................................................................................................... 7
2.2 Safety standards...................................................................................................... 7
2.3 Important safety information..................................................................................8
2.4 Symbols on the type label..................................................................................... 10
2.5 Basic safety protection ........................................................................................... 11
3 Unpacking ..........................................................................................................12
3.1 Scope of delivery .....................................................................................................12
3.2 Checking the delivery ..............................................................................................12
4 Mounting............................................................................................................13
4.1 Ambient conditions...................................................................................................13
4.2 Mounting location ....................................................................................................15
4.3 Mounting the inverter with the wall bracket ........................................................ 16
5 Electrical Connection........................................................................................19
5.1 Safety....................................................................................................................... 19
5.2 System layout of inverters without integrated DC-switch...................................21
5.3 Overview of the electrical connection area..........................................................22
5.4 AC connection.........................................................................................................23
5.4.1 Conditions for the AC connection.......................................................................................... 23

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5.4.2 AC connection .................................................................................................................................23
5.4.3 Earthing protection ......................................................................................................................28
5.4.4 Residual current protection ....................................................................................................29
5.4.5 Overvoltage category................................................................................................................ 29
5.4.6 AC circuit breaker .........................................................................................................................30
5.5 DC connection ..........................................................................................................31
5.5.1 Conditions for the PV generator (DC) ..................................................................................31
5.5.2 Assembling the DC connectors............................................................................................ 32
5.5.3 Disassembling the DC connectors...................................................................................... 34
5.5.4 Connecting the PV array........................................................................................................... 36
6 Communication ................................................................................................ 38
6.1 Monitoring system ..................................................................................................38
6.2 Communication Connection ...................................................................................39
6.2.1 Communication Overview.......................................................................................................... 39
6.2.2 Connection type for RS485-HD............................................................................................ 40
6.2.3 Connection type for RS422..................................................................................................... 43
6.3 Updating the firmware via RJ45 ............................................................................47
6.4 Communication with a third party monitoring equipment ...................................47
7 Commissioning .................................................................................................48
7.1 Electrical checks......................................................................................................48
7.2 Mechanical checks..................................................................................................49
7.3 Start-Up...................................................................................................................49
8 Disconnecting the Inverter from Voltage Sources .......................................50
9 Operating ...........................................................................................................51
9.1 Overview of the control panel.................................................................................51
9.2 LED indicators.........................................................................................................52
9.3 Display messages...................................................................................................53

Installation and operating instructions V00 3
9.4 Display ....................................................................................................................55
9.4.1 Overview of menu structure...................................................................................................55
9.4.2 Initial page..........................................................................................................................................56
9.4.3 Unlocking page...............................................................................................................................56
9.4.4 Home page........................................................................................................................................56
9.4.5 Operation information.................................................................................................................57
9.4.6 Main menu.........................................................................................................................................58
9.4.7 Historical data .................................................................................................................................58
9.4.8 Event log............................................................................................................................................59
9.4.9 Date &Time setting ......................................................................................................................59
9.4.10 Language setting.........................................................................................................................60
9.4.11 Contrast setting.............................................................................................................................60
9.4.12 Safety regulations setting....................................................................................................... 61
9.4.13 Overload Setting.......................................................................................................................... 62
9.4.14 Active power control ................................................................................................................62
9.4.15 Reactive power control ........................................................................................................... 62
9.4.16 PV Mode Setting .......................................................................................................................... 63
9.4.17 EEG Setting...................................................................................................................................... 63
9.4.18 Communication Setting............................................................................................................ 64
9.4.19 Device information ..................................................................................................................... 64
9.4.20 Clear the historical data.........................................................................................................65
10 Technical data.................................................................................................66
10.1 DC input data ..........................................................................................................66
10.2 AC output data ......................................................................................................67
10.3 Safety protection................................................................................................. 68
10.4 General data ..........................................................................................................69
10.5 Efficiency...............................................................................................................70
10.6 Power reduction.....................................................................................................71
10.7 Tools and torque...................................................................................................72

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11 Troubleshooting .............................................................................................. 73
12 Maintenance .................................................................................................... 75
12.1 Replace the fuse.....................................................................................................75
12.2 Cleaning the contacts of the DC switch ...............................................................76
12.3 Cleaning the heat sink ...........................................................................................76
12.4 Maintaining the fans..............................................................................................76
13 Recycling and disposal ................................................................................... 78
14 Warranty......................................................................................................... 78
15 Contact ............................................................................................................ 79

Installation and operating instructions V00 5
1 About this manual
General Notes
The Zeverlution Pro 33K is a transformerless three-phase inverter with two MPP
trackers. It converts the direct current (DC) from a photovoltaic (PV) array to
grid-compliant alternating current (AC) and feeds it into the utility grid.
1.1 Validity
This manual describes the mounting, installation, commissioning and maintenance of
the following Zeversolar inverter: Zeverlution Pro 33K.
Observe all documentation that accompanies the inverter. Keep them in a convenient
place and available at all times.
1.2 Target group
This manual is for qualified electricians only who must perform the tasks exactly as
described.
All persons installing inverters must be trained and experienced in general safety
which must be observed when working on electrical equipment. Installation
personnel should also be familiar with local requirements, rules and regulations.

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1.3 Symbols used in this manual
The safety precautions and general information used in this manual are as follows:
DANGER indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
INFORMATION provides tips which are valuable for the optimal
installation and operation of the inverter.
NOTICE indicates a situation which, if not avoided, can result in property
damage.
CAUTION indicates a hazardous situation which, if not avoided, can result
in minor or moderate injury.
WARNING indicates a hazardous situation which, if not avoided, can result
in death or serious injury.

Installation and operating instructions V00 7
2 Safety
2.1 Intended use
1. Zeverlution Pro 33K is suitable for indoor and outdoor use.
2. Zeverlution Pro 33K must only be operated with PV arrays (PV modules and
cabling) of protection class II, in accordance with GB/T 20047.1. Do not connect
any sources of energy other than PV modules to the inverter.
3. Zeverlution Pro 33K inverters can only be connected with photovoltaic arrays
whose equivalent capacitance to ground is less than 2.0μF.
4. When the PV modules are exposed to light, a DC voltage is supplied to this
equipment.
5. When designing the PV system, ensure that the values comply with the
permitted operating range of all components at all times. The free design
program (http://www.zeverplan.com ) will assist you.
6. This inverter supports the grid forms shown in detail as follows: TN-S, TN-C,
TN-C-S, TT. In terms of TT, the effective value of UN_PE must be less than 20V.
Zeverlution Pro 33K
Transformer
TN-S
L1
N
L3
L2
PE
PE
Zeverlution Pro 33K
Transformer
TN-C
L1
PEN
L3
L2
PE
Zeverlution Pro 33K
Transformer
TN-C-S
L1
N
L3
L2
PE
PE
Zeverlution Pro 33K
Transformer
TT
L1
N
L3
L2
PE
2.2 Safety standards
Zeverlution Pro 33K inverter has obtained the Golden Sun Certificate awarded by
CQC. Zeverlution Pro 33K complies with the European standard of low voltage
appliance 2006/95/EC and EMC standard 2004/108/EC and it has a CE mark on the
label. For more information about safety standards in other countries and regions,
please visit the website: www.zeversolar.com.

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2.3 Important safety information
Risk of injury due to electric shock and fire caused by high leakage
current!
• The inverter must be reliably grounded in order to protect property
and personal safety.
Danger to life due to high voltages of the PV array!
When exposed to sunlight, the PV array generates dangerous DC voltage
which is present in the DC conductors and the live components of the
inverter. Touching the DC conductors or the live components can lead to
lethal electric shocks. If you disconnect the DC connectors from the
inverter under load, an electric arc may occur leading to electric shock
and burns.
•Do not touch non-insulated cable ends.
•Do not touch the DC conductors.
•Do not touch any live components of the inverter.
•Have the inverter mounted, installed and commissioned only by
qualified persons with the appropriate skills.
•If an error occurs, have it rectified by qualified persons only.
•Prior to performing any work on the inverter, disconnect it from all
voltage sources as described in this document (see Section 8
"Disconnecting the Inverter from Voltage Sources", page 50).

Installation and operating instructions V00 9
Grounding the PV array!
• Comply with local regulations for grounding the PV array. We
suggest that the frames of the PV modules must be reliably
grounded.
• Do not ground any of the terminals of the PV module strings.
Risk of injury due to hot heat sink!
• The heat sink may get hot during operation. Do not touch!

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2.4 Symbols on the type label
Symbol
Explanation
Beware of high voltage and operating current.
The inverter operates at high voltage and current. Work on the
inverter must only be carried out by skilled and authorized
electricians.
Beware of hot surfaces.
The inverter can get hot during operation. Avoid contact during
operation.
Do not dispose of this inverter with household waste.
For more information on disposal, please refer to Section 13
“Recycling and disposal”.
CE mark.
The inverter complies with the requirements of the applicable
EC guidelines.
Golden Sun Certificate awarded by CQC.
certification mark for solar energy product of CQC.
Capacitors discharge.
Before opening the covers, the inverter must be disconnected
from the grid and PV array. Wait at least 5 minutes to allow
the energy storage capacitors to fully discharge.
Refer to the manual accompanying the inverter.
Risk of danger, warning and caution.
Safety information important for human safety. Failure to
observe the safety information in this manual may result in
injury or death.

Installation and operating instructions V00 11
2.5 Basic safety protection
We provide the following safety protection:
1）Over-voltage, under-voltage protection;
2）Over-frequency, under-frequency protection;
3）Over-temperature monitoring;
4）Residual current monitoring;
5）Insulation monitoring;
6）Active islanding protection (non-utility type);
7）Low voltage ride through (Utility type);
8）Output DC component test.

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3 Unpacking
3.1 Scope of delivery
Object
Description
Quantity
A
Inverter
1
B
Wall mounting bracket
1
C
Mounting accessory kit
1
D
Documentation
1
E
DC connecter(positive)
8
F
DC connecter(negative)
8
A B C
D E F
3.2 Checking the delivery
Check the delivery for completeness and visible external damage, such as cracks in
the enclosure or in the display. Inform the responsible shipping company
immediately or contact your distributor if anything is damaged or missing.

Installation and operating instructions V00 13
4 Mounting
4.1 Ambient conditions
1. The mounting location must be inaccessible to children.
2. The mounting location should be dry, freely and safely accessible at all times
without the need for any auxiliary equipment.
3. Mount the inverter in areas where it cannot be touched inadvertently.
4. The mounting method and location must be suitable for the inverter's weight and
dimensions.
5. The ambient temperature should be below 40°C to ensure optimal operation.
6. In living areas, do not mount the unit on plasterboard walls or similar to avoid
audible vibrations. The inverter can make noises when in use which may be
perceived as a nuisance in a living area.
7. Observe the minimum clearances to walls, other inverters, or objects as shown
in the diagram in order to ensure sufficient heat dissipation and sufficient space
for maintaining the inverter.
clearances for one inverter
Direction
Min. clearance
for multiple
inverters
Min. clearance
for a single
inverter
above
200mm
200mm
below
500mm
500mm
sides
600mm
600mm
spacing
1000mm

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Recommended clearances for multiple inverters installation
8. Avoid exposing the inverter to direct sunlight, rain and snow to ensure optimal
operation and extend service life. It is recommended to mount the inverter
under the shaded site of the building or to mount an awning or a protection
cover above the inverter.
9. Do not put any objects above the inverter.

Installation and operating instructions V00 15
4.2 Mounting location
1. Mount the inverter vertically or tilted backwards at a maximum angle of 15°.
The wall should be suitable for the weight of the inverter over a long time.
2. Never mount the inverter tilted forward or sideways.
3. Never mount the inverter horizontally.
4. Mount the inverter at eye level to allow operating status to be read at all times.
5. The electrical connection area must point downwards.
Danger to life due to fire or explosion!
• Do not mount the inverter on flammable construction materials.
• Do not mount the inverter in areas where flammable materials are
stored.
• Do not mount the inverter in areas where there is a risk of explosion.

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Risk of injury when lifting the inverter, or if it is dropped!
When mounting, at least two persons are needed, take into account that
the inverter weighs approximately 58kg.
4.3 Mounting the inverter with the wall bracket
Mounting procedure:
1. Use the wall bracket as a drilling template and mark the positions of the drill holes
on the wall, drill 6 holes as required using a drill with Ø10 mm bit. The holes must
be approximately 70 mm deep. Keep the drill perpendicularto the wall, and hold
the drill steady to avoid tilted holes.
2. Insert six wall plugs into the holes in the wall with a rubber hammer and fix the
wall bracket to the wall by tightening six hexagon screws, using a socket wrench
•Before inserting the wall plugs, measure the depth and distance of the
holes.
•If the measured values do not meet the hole requirements, redrill the
holes.

Installation and operating instructions V00 17
SW10.
3. Mount the inverter onto the wall bracket.
If the inverter is to be transported and lifted with a crane, screw two eye bolts M10
(provided by installer) into the threads which are located on the top of the inverter.

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Check if the hook on the top of the wall bracket is in position after mounting
the inverter onto the wall bracket.
4. Secure the inverter to the wall bracket using four M5 screws on both
sides to prevent the inverter from accidently slipping off. Screwdriver
type: T25, Torque: 2.5Nm.
Dismantle the inverter in reverse order.

Installation and operating instructions V00 19
5 Electrical Connection
5.1 Safety
Risk of injury due to electric shock!
• All electrical connections must be connected in accordance with
national and local electrical standards, and obtaining approval from
local grid operator.
Danger to life due to high voltages of the PV array!
When exposed to sunlight, the PV array generates dangerous DC voltage
which is present in the DC conductors and the live components of the
inverter. Touching the DC conductors or the live components can lead to
lethal electric shocks. If you disconnect the DC connectors from the
inverter under load, an electric arc may occur leading to electric shock
and burn.
•Do not touch non-insulated cable ends.
•Do not touch the DC conductors.
•Do not touch any live components of the inverter.
•Have the inverter mounted, installed and commissioned only by
qualified persons with the appropriate skills.
•If an error occurs, have it rectified by qualified persons only.
•Prior to performing any work on the inverter, disconnect it from all
voltage sources as described in this document (see Section 8
"Disconnecting the Inverter from Voltage Sources", page 50).