SMA SUNNY BOY 3000TL Single Tracker User manual

SB25-30TLST-21-IA-en-12 | IMEN-SBTLST-21 | Version 1.2
EN
PV Inverter
SUNNY BOY 2500TLSingleTracker
SUNNYBOY3000TLSingleTracker
Installation Manual

SMA Solar Technology AG Table of Contents
Installation Manual SB25-30TLST-21-IA-en-12 3
Table of Contents
1 Information on this Document. . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1 Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 Qualification of Skilled Persons . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3 Scope of Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 Sunny Boy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Symbols on the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.5 Electronic Solar Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.6 Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.7 Slot for Communication Interface . . . . . . . . . . . . . . . . . . . . . . . 21
4.8 Slot for Multi-Function Interface . . . . . . . . . . . . . . . . . . . . . . . . 22
4.9 Operating Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.10 Grid Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.11 Varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.2 Selecting the Mounting Location. . . . . . . . . . . . . . . . . . . . . . . . 23

Table of Contents SMA Solar Technology AG
4 SB25-30TLST-21-IA-en-12 Installation Manual
5.3 Mounting the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.2 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 28
6.3 Connection to the Electricity Mains (AC) . . . . . . . . . . . . . . . . . 29
6.3.1 Conditions for the AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3.2 Connecting the Inverter to the Electricity Mains (AC) . . . . . . . . . . . . . . . . . . 32
6.3.3 Additional Earthing of the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.4 Connecting the PV Array (DC) . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.4.1 Conditions for DC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.4.2 Assembling the DC Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4.3 Disassembling the DC Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.4.4 Connecting the PV Array (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.5 Setting the Country Standard and Display Language . . . . . . . 43
6.5.1 Checking the Country Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.5.2 Setting the Country Standard and Language using the
Rotary Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.6 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.6.1 Interface for RS485 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.6.2 Setting the Bluetooth NetID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.6.3 Multi-Function Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.1 Commissioning the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.2 Display Messages during the Start-up Phase . . . . . . . . . . . . . . 52
7.3 Self-Test in Accordance with CEI 0-21 for Plants ≤ 6 kW. . . . 53
7.3.1 Starting the Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.3.2 Abortion of the Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.3.3 Restarting the Self-Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.4 Deactivating Protective Conductor Monitoring. . . . . . . . . . . . . 54

SMA Solar Technology AG Table of Contents
Installation Manual SB25-30TLST-21-IA-en-12 5
8 Opening and Closing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
8.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
8.2 Disconnecting the Inverter from Voltage Sources . . . . . . . . . . . 56
8.3 Closing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
9 Maintenance and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 61
9.1 Cleaning the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.2 Checking Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.3 Checking the Electronic Solar Switch for Wear . . . . . . . . . . . . 61
10 Slot for SD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
11.1 LED Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
11.2 Event Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
11.3 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
11.4 DC Current after AC-side Disconnection. . . . . . . . . . . . . . . . . . 74
11.5 Checking the PV Array for Earth Faults . . . . . . . . . . . . . . . . . . . 75
11.6 Checking the Function of the Varistors . . . . . . . . . . . . . . . . . . . 77
12 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
12.1 Dismantling the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
12.2 Replacing the Enclosure Lid . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
12.3 Packing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
12.4 Storing the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
12.5 Disposing of the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
13 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
13.1 DC/AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
13.1.1 Sunny Boy 2500TL Single Tracker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
13.1.2 Sunny Boy 3000TL Single Tracker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
13.2 General Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Table of Contents SMA Solar Technology AG
6 SB25-30TLST-21-IA-en-12 Installation Manual
13.3 Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
13.4 Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
13.5 Climatic Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
13.6 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
13.7 Electronic Solar Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
13.8 Torques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
13.9 Earthing Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
13.10 Data Storage Capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
14 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
15 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

SMA Solar Technology AG Information on this Document
Installation Manual SB25-30TLST-21-IA-en-12 7
1 Information on this Document
1.1 Validity
This document is valid for the following device types:
• SB 2500TLST-21
• SB 3000TLST-21
1.2 Target Group
This document is for skilled persons. Only skilled persons with appropriate qualification are allowed
to perform the tasks set forth in this document (see Section 2.2 "Qualification of Skilled Persons"
(page11)).
1.3 Additional Information
Additional information is available at www.SMA.de/en.
Title Document type
Miniature Circuit-breaker Technical information
Measured Values, Operating Parameters, and Event Messages Technical description
SMA Bluetooth ‒ SMA Bluetooth® Wireless Technology in
Practice
Technical information
SMA Bluetooth® Wireless Technology Technical description
Module Technology Technical information
Capacitive Leakage Currents Technical information

Information on this Document SMA Solar Technology AG
8 SB25-30TLST-21-IA-en-12 Installation Manual
1.4 Symbols Used
The following types of safety precautions and general information appear in this document:
Nomenclature
The following nomenclature is used in this document:
DANGER!
DANGER indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING!
WARNING indicates a safety precaution 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.
NOTICE!
NOTICE indicates a situation which, if not avoided, could result in property damage.
Information
Information provides tips that are valuable for effective installation and operation of the
product.
☑ This symbol indicates the result of an action.
Complete designation Designation in this document
Sunny Boy 2500TL Single Tracker/
Sunny Boy 3000TL Single Tracker
Inverter, product
Electronic Solar Switch ESS
SMA Bluetooth® Wireless Technology Bluetooth

SMA Solar Technology AG Information on this Document
Installation Manual SB25-30TLST-21-IA-en-12 9
Abbreviations
Abbreviation Designation Explanation
AC Alternating Current ‒
AF Width Across Flats The distance between two parallel flat
surfaces ("flats") of a screw head.
DC Direct Current ‒
EC European Community ‒
LED Light-Emitting Diode ‒
MPP Maximum Power Point ‒
MSL Mean Sea Level ‒
NetID Network Identification Identification number for SMA Bluetooth
network
PE Protective Earth Protective conductor
PV Photovoltaics ‒
VDE Verband der Elektrotechnik
Elektronik Informationstechnik e.V.
Association for Electrical, Electronic and
Information Technologies

Safety SMA Solar Technology AG
10 SB25-30TLST-21-IA-en-12 Installation Manual
2 Safety
2.1 Intended Use
The Sunny Boy is a PV inverter, which converts the direct current of the PV array to grid-compliant
alternating current and feeds it into the electricity grid.
Principle of a PV plant with this Sunny Boy
The Sunny Boy is suitable for indoor and outdoor use.
The Sunny Boy may only be operated with PV arrays (PV modules and cabling) of protection class II.
The PV modules must be suitable for use with the Sunny Boy and must have been released by the
module manufacturer.
It is only permissible to use PV modules with large capacities to earth if their coupling capacity does
not exceed 1.4 μF.
All components must remain within their operating ranges at all times.
For safety reasons, it is not permitted to modify the product or install components that are not explicitly
recommended or distributed by SMA Solar Technology AG for this product.
Only use the Sunny Boy in accordance with the information provided in the enclosed documentation.
Any other use may result in personal injury or property damage.
• Do not mount the inverter on flammable construction materials.
• Do not mount the inverter in areas where highly flammable materials are stored.
• Do not mount the inverter in a potentially explosive atmosphere.

SMA Solar Technology AG Safety
Installation Manual SB25-30TLST-21-IA-en-12 11
The enclosed documentation is an integral part of this product.
• Read and observe the documentation.
• Keep the documentation in a convenient place for future reference.
2.2 Qualification of Skilled Persons
The work described in this document must be performed by skilled persons only. Skilled persons must
have the following qualifications:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing and using electrical
devices and plants
• Training in the installation and commissioning of electrical devices and plants
• Knowledge of all applicable standards and directives
• Knowledge of and adherence to this document and all safety precautions
2.3 Safety Precautions
DANGER!
Danger to life due to high voltages in the inverter
High voltages which may cause electric shocks are present in the conductive parts of the
inverter.
• Prior to performing any work on the inverter, disconnect the inverter on the AC and
DC sides (see Section 8.2 "Disconnecting the Inverter from Voltage Sources"
(page56)).
DANGER!
Risk of burns due to electric arc
To prevent arcing when disconnecting cables in the PV array, the ESS and DC connectors
must be removed from the inverter, or the external DC switch-disconnector must be
switched off and the DC connectors must be removed from the inverter before performing
any work on the PV array.
• Before starting work on the PV array, always disconnect the inverter on the AC and
DC sides (see Section 8.2 "Disconnecting the Inverter from Voltage Sources"
(page56)).
• Attach the enclosed warning label "Risk of burns from electric arc" so that it is clearly
visible on the external AC disconnection device.

Safety SMA Solar Technology AG
12 SB25-30TLST-21-IA-en-12 Installation Manual
WARNING!
Risk of electric shock if DC connectors are pulled out under load
If you disconnect the DC connectors from the inverter under load, an electric arc may
occur, causing electric shock and burns.
• If the inverter is not equipped with an Electronic Solar Switch and the regulations in
the country of installation require an external DC switch-disconnector, you must install
an external DC switch-disconnector.
• Switch off the AC miniature circuit-breaker and disconnect the inverter on the DC side
before pulling out the DC connectors.
CAUTION!
Risk of burns due to hot enclosure parts
Some parts of the enclosure may become hot during operation.
• Do not touch any parts other than the lower enclosure lid of the inverter during
operation.
NOTICE!
Water and dust intrusion can damage the inverter.
If the inverter is not equipped with an ESS, the electronics in the inverter comply with degree
of protection IP65 when closed. If the inverter is equipped with an ESS, the electronics in
the inverter comply with degree of protection IP65 when the inverter is closed and with the
ESS plugged in. The inverter is then protected against dust and water intrusion. The inverter
connection area complies with degree of protection IP54. It is protected against interior
dust deposits and splash water from all angles.
• When the ESS is not plugged in, measures must be taken to protect the inverter
against dust and water.
• Replug the ESS after carrying out any work on the inverter.
Earthing of the PV array
Comply with local regulations for the earthing of the modules and the PV array.
SMA Solar Technology AG recommends connecting the array frame and other electrically
conductive surfaces so that there is continuous conduction, and earthing them in order to
ensure maximum protection for property and persons.

SMA Solar Technology AG Scope of Delivery
Installation Manual SB25-30TLST-21-IA-en-12 13
3 Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage. Contact your
specialist dealer if the delivery is incomplete or you find any damage.
Object Quantity Description
A1 Sunny Boy
B1 Wall mounting bracket
C2 Positive DC connector
D2 Negative DC connector
E4 Sealing plugs for the DC connectors
F1 Installation manual
G1User manual
H1 Set of documents with explanations and certificates
I1 Supplementary sheet with inverter default settings
K1 Warning label "Risk of burns from electric arc" for the disconnection device
on the AC side.
ABCE
H
FG
IK
_
+
D

Product Description SMA Solar Technology AG
14 SB25-30TLST-21-IA-en-12 Installation Manual
4 Product Description
4.1 Sunny Boy
The Sunny Boy is a PV inverter, which converts the direct current of the PV array to grid-compliant
alternating current and feeds it into the electricity grid.
*optional
Item Description
AType label
BLEDs
CDisplay
DElectronic Solar Switch*
ELower enclosure lid
FUpper enclosure lid

SMA Solar Technology AG Product Description
Installation Manual SB25-30TLST-21-IA-en-12 15
4.2 Symbols on the Inverter
Symbol Description Explanation
Inverter This symbol defines the function of the green LED.
It indicates the operating state of the inverter.
Observe the
documentation.
This symbol defines the function of the red LED. It
indicates a fault or disturbance. Please read the
manual to find information on how to remedy the
fault or disturbance.
Bluetooth This symbol defines the function of the blue LED. It
indicates that communication via Bluetooth is
activated.
QR Code® for
SMA bonus
programme
For information on the SMA bonus programme,
see www.SMA-Bonus.com.
NOTICE, danger! Observe the connection requirements for a
second protective conductor 6.3.1 "Conditions
for the AC Connection" (page29).
Danger to life due to
high voltages in the
inverter
The capacitors in the inverter may be charged
with very high voltages.
• Disconnect the inverter from voltage
sources (see Section 8.2) and wait
5 minutes before opening the upper lid, in
order to allow time for the capacitors to
discharge.

Product Description SMA Solar Technology AG
16 SB25-30TLST-21-IA-en-12 Installation Manual
4.3 Type Label
The type label uniquely identifies the inverter. The type label is located on the right-hand side of the
enclosure.
The information on the type label is intended to help you use the inverter safely and receive targeted
customer support from the SMA Service Line. The type label must remain permanently attached to the
inverter.
Item Description Explanation
ADate Inverter manufacture date (year-month-day)
BDevice-specific
characteristics
‒
CAdditional information Field for additional information, e.g. information
on country-specific standards
DSerial No. Inverter serial number
EModel Device type

SMA Solar Technology AG Product Description
Installation Manual SB25-30TLST-21-IA-en-12 17
Symbols on the Type Label
Symbol Description Explanation
Danger to life due to high
voltages
The inverter operates at high voltages. All work
on the inverter must be carried out by skilled
persons only.
Risk of burns from hot
surfaces
The inverter can get hot during operation. Avoid
contact during operation. Allow the inverter to
cool down sufficiently before carrying out any
work. Wear personal protective equipment such
as safety gloves.
Observe the
documentation.
Observe all documentation that is supplied with
the inverter.
Without transformer The inverter does not have a transformer.
DC Direct current
AC Alternating current
Degree of protection: IP54 The inverter is protected against interior dust
deposits and against splash water from all
angles.
Outdoor The inverter is suitable for outdoor installation.
Proper disposal The inverter must not be disposed of together with
the household waste.
CE marking The inverter complies with the requirements of the
applicable EC directives.
Device class label The product is equipped with a wireless
component that complies with the harmonised
standards.
RAL quality mark for solar
products
The inverter complies with the requirements of the
German Institute for Quality Assurance and
Labelling.
Certified safety The inverter complies with the requirements of the
European Equipment and Product Safety Act.
Australian mark of
conformity
The inverter complies with the requirements of the
applicable Australian guidelines.
IP54

Product Description SMA Solar Technology AG
18 SB25-30TLST-21-IA-en-12 Installation Manual
4.4 Display
The display shows the current operating data of the inverter (e.g. status, power, input voltage) as well
as faults and disturbances.
Item Designation Explanation
APower Displays the current power
BDay Displays the amount of energy fed in so far today
CTotal Total amount of energy fed in until now
DActive functions The symbols indicate which communication or power
regulation functions are enabled.
EPhase assignment Shows assignment of the inverter to a phase. It is also
used to indicate external power limitation.
FElectricity grid event number Event number of a disturbance in the electricity grid
GOutput voltage/
output current
The display alternately shows the output voltage and
the output current of the inverter.
HInverter event number Event number of a device disturbance
IInput voltage/input current The display alternately shows the input voltage and
the input current of the inverter.
KPV array event number Event number of a disturbance in the PV array
LText line The text line shows event messages or instructions.
MPower and yield curve The diagram shows the changes in power over the
last 16 feed-in hours or the energy yields over the last
16 days. Tap the display once to switch between
views.
kVAr
kVArh
kWh
MVArh
MWh
kW
kWh
A
B
C
D
E
F
G
H
K
L
M
I
t/hday

SMA Solar Technology AG Product Description
Installation Manual SB25-30TLST-21-IA-en-12 19
Symbols on the Display
Symbol Description Explanation
Tap symbol You can operate the display by tapping it:
• Tapping once: the backlight switches on or the
display scrolls to the next display message.
• Tapping twice: the display shows, in succession,
the firmware version, the serial number or
description of the inverter, the Bluetooth NetID,
the set country standard and the display
language.
Telephone receiver Device disturbance present.
Contact the SMA Service Line.
Spanner Disturbance which can be resolved on-site.
Bluetooth Bluetooth communication is enabled.
Bluetooth connection Bluetooth connection to other devices is active.
Multi-function relay The multi-function relay is active.
Temperature symbol The power of the inverter is limited due to excessive
temperature.
Power limitation External active power limitation via the
Power Reducer Box is active.
PV array ‒
Inverter ‒
Grid relay If the grid relay is closed, the inverter feeds power into
the grid. If the grid relay is open, the inverter is
disconnected from the grid.

Product Description SMA Solar Technology AG
20 SB25-30TLST-21-IA-en-12 Installation Manual
4.5 Electronic Solar Switch
The ESS is an optional DC load disconnect unit. The ESS prevents electric arcs from forming when you
remove the DC connector.
When plugged in, the ESS forms a conductive path between the PV array and the inverter. Removing
the ESS interrupts the electric circuit and allows you to safely disconnect the DC connectors from the
inverter.
Electricity grid ‒
Item Description Explanation
APlug ‒
BSafety precautions
sticker
• Never operate the inverter without the lower enclosure
lid in place.
• Observe all documentation that accompanies the
inverter.
CESS sticker • When the ESS is plugged in, the DC electric circuit
remains closed.
• To interrupt the DC electric circuit, you first need to
perform steps 1 and 2.
• Remove the ESS.
• Remove all DC connectors.
Symbol Description Explanation
B
A
C