Mercedes-Benz Energy Storage Home User manual

Mercedes-Benz Energy Storage Home
Manual

Table of contents
1. General instructions 4
1.1 Applicability of these instructions 4
1.2 Correct use 4
1.3 Ambient conditions 4
1.4 Target group 4
1.5 Warranty 5
1.6 Signposting within the text 5
1.7 Rating plate 5
2. Safety instructions 6
2.1 General safety instructions 6
2.2 Personal protective equipment (PPE) 8
2.3 Room signage 8
3. Product description 9
3.1 Supplied module components 9
3.2 Inverter 10
3.3 Distances 11
3.4 Connections 11
4. Installation 12
4.1 Set-up 13
4.1.1 Upright Installation 13
4.1.1.1 Base 13
4.1.1.2 Fastening installation rail (upright) 13
4.1.1.3 Installing initial energy storage
module 13
4.1.1.4 Installing additional energy storage
modules 14
4.1.2 Wall assembly 14
4.1.2.1 Installing installation rail (wall) 14
4.1.2.2 Install energy storage modules 14
4.1.2.3 Installing base cover 15
4.2 Connecting up a unit 15
4.2.1 Protective earth 15
4.2.2 Positive terminal 16
4.2.3 Negative terminal 16
4.2.4 Communication link 17
4.3 Connecting the module to the inverter 17
4.3.1 Positive terminal and protective earth 17
4.3.2 Negative terminal and RJ45 ribbon cable 18
4.4 Connecting up two units 18
4.5 System cover 19
4.6 Trunking cover 19
5. Starting up 20
6. Dismantling 20
6.1 Switching off 21
6.2 Dismantling 21
7. Maintenance and faults 22
7.1 Maintenance 22
7.2 Faults 22
8. Cleaning 22
9. Storage 22
10. Transport 23
11. Disposal 23
12. Technical data 23
12.1 General data 23
12.2 Recommended operational limits 24
12.3 Emergency shutdown safety limits 24
13. Personal data sheet 25

1. General instructions
•Pleasereadthewholeofthismanualbeforeinstallingand
starting to use the system.
•Pleasefollowthesafetyinstructionsatalltimes.
•Thismanualispartoftheproduct.Keepitsafeforfuture
use or subsequent owners.
•Theratingplateandwarningplatesmustremainattached
to the product at all times.
1.1 Applicability of these instructions
These instructions apply exclusively to the Mercedes-Benz
Energy Storage Home Gen.1.5 produced by Deutsche
ACCUMOTIVEGmbH&Co.KG.
1.2 Correct use
The Mercedes-Benz Energy Storage Home is a compact
modular energy storage system. The product is designed
to optimize the self-consumption of energy and provide
an alternative source of power. It can be operated using
one of the inverters approved by Deutsche ACCUMOTIVE
GmbH&Co.KG.Uptofourenergystoragemodulescan
be connected in parallel to form a single unit. The largest
possible configuration comprises two such units connected
in parallel via an external distribution box. The system must
be installed in compliance with the specified ambient condi-
tions [1.3 Ambient conditions; S.4].
Use the product exclusively in accordance with the instruc-
tions given in this manual and the standards and guidelines
prevailing locally. Any use contrary to these provisions and
the stated operating limits is prohibited and will invalidate
the warranty.
Non-compliance with the operating instructions is not per-
mitted except with the separate, written approval of
DeutscheAccumotiveGmbH&Co.KG.
1.3 Ambient conditions
The Mercedes-Benz Energy Storage Home has the following
installation requirements:
•Mustbeinstalledinsideabuilding(butnotinlivingareas).
•Installinawell-ventilatedlocation.
•Max.heightabovesealevel2,000m.
•Ambienttemperaturebetween+6 °Cand+44 °C.
•Max.relativehumidity85 %(non-condensing).
•Thefloorandwallwheretheenergystoragemoduleis
installed must be non-flammable (cement or stone).
•Donotinstallinareassubjecttofireorexplosionhazard.
•Forwallassembly,thewallshouldbeabletobearatleast
four times the total weight (energy storage module incl.
accessories).
•Donotinstallinproximitytohighlyflammablematerials.
•Theroomshouldbeseparatedfromtherestofthebuilding
by means of an F30 fire door.
•Werecommendequippingtheinstallationzonewithasmoke
detector and fire extinguisher to permit early detection and
extinguishing of any fires breaking out in the vicinity of the
energy storage module.
•Donotinstallinacorrosiveenvironmentoranenvironment
containing harmful gases (salts and ammonia).
•Thebuildingitishousedinmustprovideprotectionagainst
direct lightning strikes.
•Mustbeprotectedfromexternalhazardssuchasfire,
water, tremors or vibration.
•Donotinstallinareasatriskofflooding.
•Mustbeprotectedagainstaccessbyunauthorisedper-
sons.
•Mustbeprotectedfromextremeenvironmentalconditions
such as strong sunlight, high or low temperatures and
atmospheric pollution.
•Donotinstallclosetowaterpipesorhoses.
•Keepawayfromsteamproducedbywashingmachines,
driers, saunas or similar.
1.4 Target group
Users
People who use the Mercedes-Benz Energy Storage Home.
They must be instructed by a trained person in how to ope-
rate the unit, handle batteries and electrical appliances and
the risks involved. They must have read and understood the
whole of this document and must at all times comply with
every aspect of it, in particular the safety instructions.
Trained electricians
Persons possessing suitable knowledge and experience in
the fields of electricity and electronics. Their professional
training, experience and knowledge must enable them to
comply with relevant regulations, assess work and detect
potential hazards. They must have read and understood the
whole of this document and must at all times comply with
every aspect of it, in particular the safety instructions.
4

DeutscheACCUMOTIVEGmbH&Co.KGprovidesaten-
year warranty for each individual module of your energy
storage system. If you would like to make a claim to this
manufacturer’s warranty, we would like to ask that you com-
plete and submit the warranty card to the manufacturer as
soon as your energy storage system has been installed and
is ready for operation. This is a mandatory prerequisite for
the manufacturer’s warranty to enter into force.
The warranty card is enclosed with the Warranty Terms and
Conditions. Your country-specific Warranty Terms and Condi-
tions are available at:
www.mercedes-benz-energy.com/support
Please note that you need to send in an additional filled-in
warranty card to the manufacturer for each newly purchased
module for your energy storage system if you would like to
extend the manufacturer’s warranty to these new modules.
Text Use Example
[Reference; X] Cross-reference within this document, giving the
section name and page number after the semicolon [Montage;p. 11]
Warning! Warnings relating to safety matters which must be
complied with Never lean over the banister!
Information Information which is important but not safety-
related Wash your hands before eating.
(1) ....
•....
(2)
(3)
•....
Operating instructions with a fixed sequence and
outcome(•...)
(1) Press on button.
•Pressonbutton.
(2) Enter username and password.
(3)SelectOKtoconfirm.
•Userisloggedon.
The rating plate provides information regarding the primary technical data on your Mercedes-Benz Energy Storage Home.
It is located beneath the right-hand trunking cover of the energy storage module.
Abbreviation Meaning Abbreviation Meaning
SN Serial number Weight Weight of an individual module
Date Date of manufacture HWVersion Hardware status
UNBattery’s nominal voltage SWVersion Software status
C Battery capacity QVersion Quality status
E Energy content of battery
1.5 Warranty
1.6 Signposting within the text
1.7 Rating plate
Symbol Name Explanation
CE marking Manufacturer’s declaration of conformity concerning compliance with all CE-
relevant regulations.
Consult manual Informs you that the manual and the safety instructions it contains must be read
and complied with.
EU Batteries Act label Warning that batteries must be collected separately and not disposed of in
domestic refuse.
5
Mercedes-Benz Energy Storage Home Manual | General instructions

Symbol Name Explanation
RCM label Decleration of conformity with all EMC- relevant australian regulations.
Li-ion
International recycling
label
This means that batteries need to be separated from normal household waste
and recycled; they cannot be disposed of with normal household waste.
Certification by TÜV
Rheinland
This means that the product has been tested by TÜV Rheinland LGA Products
GmbH and fulfills the defined criteria.
2. Safety instructions
Please comply with the safety instructions laid down in this chapter during all work on or with this product in order to avoid
personalinjury,damagetopropertyorharmtotheenvironment.Pleasereadthischaptercarefullyandfollowthesafety
instructions at all times!
DANGER
Fire hazard
Mechanical damage to the energy storage module may cause internal or external short circuits. These lead
to high compensating currents which may result in fire. In liquid or steam form the electrolyte used is highly
flammable.
•Neverforceopentheenergystoragemodule!
•Placethemoduleinalocationwhereitissafefromvandalism!
•Besuretoavoidmechanicaldamage!
•Makesureitisnotinstalledinareasofhighfireloadingorclosetofiresources!
•IfpossibleswitchoffyourMercedes-BenzEnergyStorageHomeshoulditsufferdamage!
•Intheeventofafireleavethedangerzoneimmediatelyandcallthefirebrigade!
DANGER
Arc flash hazard
If wires connected to the active system become detached, their high energy content means there is a high risk
of arc flash. Arc flash poses a threat to life and limb.
•Wiresmustbecorrectlyattached(maintenance-freeandstrain-relieved)!
•Wiresmayonlybeconnectedordisconnectedwiththepoweroff(beforestartinguporafterswitchingoff)!
2.1 General safety instructions
6

DANGER
Electrolyte escape hazard
The electrolyte used, Selectilyte P-0063 (200 ml per cell), is harmful to health if it comes into contact with
skin, being capable of causing severe acid burns and serious eye damage. It can also cause allergic skin
reactions and cancer. It is toxic to the environment, particularly water organisms, and has long-term harmful
effects.
•Contactwithescapedelectrolytemustbeavoidedatallcosts!
•Leavethedangerzoneimmediately!
•Preventtheelectrolyteescapingintotheenvironment!
•Neverforceopentheenergystoragemodule!
•Aftercontactwithskinorhairremovecontaminatedclothingimmediatelyandwashorshowerskinwith
copious quantities of water!
•Aftercontactwithyoureyesgentlyrinsetheminwaterforseveralminutes.Ifwearingcontactlenses
remove them and rinse them thoroughly!
•Aftercontact,callthepoisoninformationcentreoryourdoctorimmediately!
•SuitablePPEshouldbewornwhileremovingescapedelectrolyte!
[2.2 Personal protective equipment (PPE); S.8]
WARNING
Falling module hazard
Energystoragemodulesareheavyenoughtoinjurebodypartsordamageobjectseveniffallingfromalow
height.
•Wearsuitableprotectiveequipmentwhentransportingorassemblingenergystoragemodules!
[2.2 Personal protective equipment (PPE); S.8]
•Usethehandlesprovidedwhenliftingandcarryingtheenergystoragemodules!
•Duringinstallationtakecaretofollowtheinstructionsgiveninthismanual![4.Installation;S.12]
•Forsafetyreasons,anymodulesthathavefallencannotbereused!
CAUTION
Electrostatic discharge hazard
As a rule, electrostatic discharges do not cause harmful current surges. However, they may startle you,
leading to the risk of an accident or damage to electronic equipment.
•BeforetouchingtheMercedes-BenzEnergyStorageHomeduringassemblyormaintenancework,either
earth all tools or wear ESD-appropriate protective equipment (gloves as a minimum)!
•Beawareofyoursurroundings!
•Duringinstallationtakecaretofollowtheinstructionsgiveninthismanual![4.Installation;S.12]
CAUTION
Lightning strike hazard
The system is not protected against the lightning strikes to be expected in outdoor areas. These could lead
to damage to the energy storage module, rendering it dangerous.
•Thebuildingaroundtheoperatingroommustbeprotectedagainstdirectlightningstrikes!
7
Mercedes-Benz Energy Storage Home Manual | Safety instructions

Transport
Safety shoes (toe protection, anti-slip)
Gloves (Protection Index class 2 as a minimum, see EN 374)
Installation, maintenance and dismantling
Safety shoes (toe protection, anti-slip)
ESD gloves
Removal of electrolyte or liquid acid
Sealed safety glasses/goggles or a visor
Long-sleeved protective clothing
Acid-resistant safety shoes or rubber boots
For contact with batteries, electrical insulating gloves (according to IEC 60903, Class 0, Category R, certified according to
IEC 61482-1-2, Class 2 or EN 61482-1-2, Class 2)
Where there is no battery contact, nitrile chemical protection gloves
For fire-fighting
Breathing apparatus not dependent on surrounding atmosphere
Chemical protection clothing
CAUTION
Water damage hazard
If moisture, for instance in the form of splashes, steam, condensation, etc., penetrates the housing, there is a
risk of severe impairment to the system’s functioning and damage to all its components.
•Onlyassembleandinstallindrysurroundings.[1.3Ambientconditions;S.4]
•AvoidthedirectpenetrationofmoistureintotheMercedes-BenzEnergyStorageHomeorcontactwith
steam from washing machines, driers, saunas or similar. (Maximum contamination level 2)!
•Neverinstallincloseproximitytowallsthroughwhichwaterpipesortubespass!
2.2 Personal protective equipment (PPE)
2.3 Room signage
Labeling Description
Put up the following symbol (supplied with the module) in the operating room. In the event of an
incident, such as a fire, the sign will warn the emergency services that batteries are present in the
room.
8

3. Product description
3.1 Supplied module components
The Mercedes-Benz Energy Storage Home is a compact, modular system, which enables you to optimise your personal energy
consumption.Itoffersapoweroutputrangingfrom2.5kWforasingleenergystoragemoduleto20 kWforasystemcomprising
eight energy storage modules.
The Mercedes-Benz Energy Storage Home comes with the following components. On delivery, check that all components are
present and undamaged. In the event of defects or missing parts please contact your reseller or installer.
System cover
1 1x System cover
2 2x Expanding rivets
3 1x RJ45 terminating resistor
4 1x RJ45 ribbon cable
5 1x Warning sticker
6 2x HV cable (25mm²) for inverter (2m)
7 1x Protective earth conductor for inverter (2m)
8 1x RJ45 cable for inverter (2m)
1
2
34
5
6 7 8
Energy storage module
1 1x Energy storage module
2 2x Energy storage module trunking covers
3 2x Screws for trunking covers
4 1x Protective earth
5 2x Screws for protective earth
6 1x HVcable+terminal(red)
7 1x HV cable – terminal (black)
8 1x RJ45 cable (angled)
9 1x Manual
1
2
3
45
6 7
8
9
Handbuch Mercedes-Benz
Energiespeicher
9
Mercedes-Benz Energy Storage Home Manual | Product description

3.2 Inverter
The Mercedes-Benz Energy Storage Home can only be ope-
rated using an inverter that has been approved by Deutsche
ACCUMOTIVEGmbH&Co.KG:Thereisatableofapproved
inverters available at:
www.mercedes-benz-energy.com/support
To prevent harm to people or damage to the energy
storage system, only use approved inverters.
Base (upright installation)
1 1x Base
2 2x Trunking covers for bases
3 2x Screws for trunking cover
4 1x Protective earths
5 2x Screws for trunking covers
1
23
4
5
Floor cover (wall installation)
1 1x Floor cover
2 2x Expanding rivets
1
2
1 2
Installation rails
1 2x Installation rail (wall)
1 2x Installation rail (upright)
The installation rails are supplied according to the number
of energy storage modules and the installation type
(upright or wall installation).
10

3.3 Distances
790 mm
500 mm
300 mm
870 mm
200 mm200 mm
300 mm
390 mm
362 mm
790 mm
500 mm
300 mm
870 mm
200 mm200 mm
300 mm
390 mm
362 mm
370 mm
Freestanding
Wall-mounted
3.4 Connections
CON2
CON3
11
Mercedes-Benz Energy Storage Home Manual | Product description

4. Installation
Target group
Trained electrician wearing PPE for installation[2.2 Personal protective equipment (PPE); S.8]
Tools required
13 open-ended spanner
Screwdriver(6.5 mmslot,insulated)
Screwdriver (TX 20)
Hexkey(4 mmund3 mm)
DANGER
Arc flash hazard
If wires connected to the active system become detached, their high energy content means there is a high
risk of arc flash. Arc flash poses a threat to life and limb.
•Wiresmustbecorrectlyattached(maintenance-freeandstrain-relieved)!
•Wiresmayonlybeconnectedordisconnectedwiththepoweroff(beforestartinguporafterswitching
off)!
WARNUNG
Falling module hazard
Energystoragemodulesareheavyenoughtoinjurebodypartsordamageobjectseveniffallingfromalow
height.
•Wearsuitableprotectiveequipmentwhentransportingorassemblingenergystoragemodules!
[2.2 Personal protective equipment (PPE); S.8]
•Usethehandlesprovidedwhenliftingandcarryingtheenergystoragemodules!
•Duringinstallationtakecaretofollowtheinstructionsgiveninthismanual.[4.Installation;S.12]
•Forsafetyreasons,anymodulesthathavefallencannotbereused!
CAUTION
Electrostatic discharge hazard
As a rule, electrostatic discharges do not cause harmful current surges. However, they may startle you,
leading to the risk of an accident or damage to electronic equipment.
•EarthtoolspriortotouchingtheMercedes-BenzEnergyStorageHomesystemorwearESD-compliant
protective equipment (gloves at the very least)!
•Beawareofyoursurroundings!
•Duringinstallationtakecaretofollowtheinstructionsgiveninthismanual!
[4. Installation; S.12]
12

4.1.1.3 Installing initial energy storage module
(1) Use the slots and bolts provided to attach the initial en-
ergy storage module to the installation rail (upright).
The attached energy storage module must be fitted flush
with the base underneath.
(2) Screw the nuts tight onto the bolts.
•Initialenergystoragemoduleinstalled.
4.1 Set-up
3
4
1
1
2
4
4
1
2
1
2
4.1.1.1 Base
(1) Place the base on the floor.
(2) Lay a spirit level on the base.
(3)Usethehexkey(4 mm)toadjusttheheightofthefeet.
(4) Fasten the feet with the aid of the nuts.
•Baseinstalled.
The Mercedes-Benz Energy Storage Home Gen.1.5 is designed for upright installation and wall installation. Up to four
individual energy storage modules may be stacked vertically on top of each other. If installing five or more energy storage
modules, a second unit will have to be assembled. Only use the original parts supplied for installation!
To ensure stable installation check that the base is
horizontally aligned!
4.1.1.2 Fastening installation rail (upright)
(1) Attach the installation rail (upright) to the unit by inserting
the bolts into the slots in the base and energy storage
module.
(2) Screw the nuts tight onto the bolts.
(3) Position the unit against the wall.
(4) Use appropriate screws and dowels to fasten the instal-
lation rail (upright) to the wall to prevent the unit from
tipping over.
•Installationrails(upright)mountedandfastened
to the wall.
Fasten the installation rail (upright) to the wall to
prevent accidental displacement of the unit!
4.1.1 Upright Installation
The underside of the energy storage module exactly fits
onto either the top of the base or the top of another
module.
13
Mercedes-Benz Energy Storage Home Manual | Installation

4.1.1.4 Installing additional energy storage modules
(1) Use the slots and bolts provided to fasten the second
energy storage module to the installation rail (upright).
The additional energy storage module must be fitted flush
with the module underneath.
(2) Screw the nuts tight onto the bolts.
(3) Repeat the process until all the energy storage modules
have been attached to the installation rails (upright).
Remember that the maximum unit height is four energy
storage modules.
•Energystoragemodule(s)nowinstalled.
1
2
1
2
The installation rails (upright) exactly match the number
of energy storage modules supplied. If you wish to extend
your Mercedes-Benz Energy Storage Home system, you
will need additional installation rails.
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1
1
1
4.1.2.1 Installing installation rail (wall)
(1) Attach the installation rails (wall) to the wall. Use all
the holes provided in the installation rail and ensure a
minimum spacing of 50 cm to the base (bottom of the
installation rail [wall]).
•Installationrail(wall)installed.
Make sure that the rails are firmly attached to the
wall. The wall should be able to bear the total weight.
4.1.2 Wall assembly
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3
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1
2
4
4
4.1.2.2 Install energy storage modules
The installation rail (wall) provided is only designed for
the exact number of energy storage modules. If you want
to extend your Mercedes-Benz Energy Storage Home,
you will need another installation rail.
(1) Use the slots and bolts provided to fasten the bottom-most
energy storage module to the installation rail (wall).
(2) Screw the nuts tight onto the bolts.
(3) Use the slots and bolts provided to fasten the second
energy storage module to the installation rail (wall). The
energy storage module added should be placed flat on
top of the module beneath.
(4) Screw the nuts tight onto the bolts.
(5) Repeat the process until all the energy storage modules
have been attached to the installation rail (wall). Take note
of the maximum installation height of four energy storage
modules.
•Energystoragemodule(s)installed.
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4.2 Connecting up a unit
With two or more energy storage modules, the protective earth, the positive and negative terminals and the communication
link between the energy storage modules must be connected up, beginning with the bottom energy storage module. Only use
the original parts provided for the installation!
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1
4.1.2.3 Installing base cover
A separate cover is provided for the base.
(1) Attach the base cover to the bottommost energy storage
module vertically from the bottom.
(2) Attach the base cover to the left and right of the energy
storage module using expanding rivets.
•Basecoverinstalled.
4.2.1 Protective earth
In the case of wall assembly, start with the first energy
storage module as there is no base used.
(1) Screw the protective earth onto the base.
(2) Screw the other end of the same cable onto the energy
storage module above.
(3) Repeat the process until all the energy storage modules
are connected in sequence with the protective earth.
•Protectiveearthnowconnected.
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3
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3
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Mercedes-Benz Energy Storage Home Manual | Installation

4.2.2 Positive terminal
(1) Insert the HV cable (red) into the positive terminal of
the feed-through terminal block of the bottom-most
energy storage module. Screw it tight (tightening torque
4–4.5 Nm).
(2) Insert the other end of the same HV cable (red) into the
positive terminal of the feed-through terminal block of the
energy storage module above and screw it tight (tighten-
ingtorque4–4.5 Nm).
(3) Repeat the process until all the energy storage modules
are attached to the positive terminal.
•positiveterminalnowconnected.
The positive terminal of the feed-through terminal block is
markedwith‘ + ’.
4.2.3 Negative terminal
(1) Insert the negative terminal of the HV cable (black) into
the negative terminal of the feed-through terminal block
of the energy storage below and screw it tight (tightening
torque4–4.5 Nm).
(2) Insert the other end of the same HV cable into the
negative terminal feed-through terminal block of the
energy storage module above it and screw it tight (tight-
eningtorque4–4.5 Nm).
(3) Repeat the process until all the energy storage modules
are attached to the negative terminal.
•negativeterminalnowconnected.
The negative terminal of the feed-through terminal block is
markedwith‘ - ’.
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3
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4.3 Connecting the module to the inverter
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2
4.3.1 Positive terminal and protective earth
(1) Srcew the protective earth into the upper energy storage
module.
(2)InserttheHVcable(25 mm²,positiveterminal)intothe
positive terminal on the upper energy storage module’s
feed-through terminal block and screw it tight (tightening
torqueof4–4.5 Nm).
•ProtectiveearthandHVcable(25 mm²,positivetermi-
nal) for inverter now now connected.
This steps described in this section refer to the wiring for the Mercedes-Benz Energy Storage Home only. In order to connect
the inverter, please refer to the installation instructions provided with your specific inverter.
The positive terminal on the feed-through terminal block is
markedwith‘ + ’.
Note that the cables to the inverter must be at-
tached to the wall in order to relieve the strain on it!
4.2.4 Communication link
(1) Insert the RJ45 cable into the upper RJ45 connection
socket on the bottom energy storage module.
(2) Insert the other end of the same cable into the lower RJ45
connection socket on the energy storage module above.
(3) Repeat the process until all the energy storage modules are
connected with each other via RJ45 cables.
(4) Insert the RJ45 terminating resistor into the lowest free
RJ45 connection socket on the bottom energy storage
module.
•Communicationlinkconnected.
The RJ45 connection sockets on the energy storage system
are each marked, the upper socket with ‘CON2’ and the
lower socket with ‘CON3’.
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4
3
3
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Mercedes-Benz Energy Storage Home Manual | Installation

4.4 Connecting up two units
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4.3.2 Negative terminal and RJ45 ribbon cable
(1)InserttheHVcable(25 mm²,negativeterminal)intothe
negative terminal of the feed-through terminal block of
the topmost energy storage module and screw it tight
(tighteningtorqueof4–4.5 Nm).
(2) Insert the RJ45 ribbon cable into the upper RJ45 connec-
tion socket on the upper energy storage module.
•HVcable’snegativeterminal(25 mm²)andRJ45ribbon
cable for inverter or system cover now connected.
The negative terminal on the feed-through terminal block
ismarkedwith‘ - ’.TheupperRJ45connectionsocketis
marked with the word ‘CON2’.
Note that the cables to the inverter must be at-
tached to the wall in order to relieve the strain
on it!
(1) Connect the individual units as described in the section
‘Connecting the module to the inverter’. [4.3 Connecting
the module to the inverter; S.17]
(2)NextconnecttheHVcable(25 mm²)inparallel (not in
series) in a distribution box.
(3)UseanHVcable(50 mm²)toconnectthedistributionbox
with the inverter.
(4) Insert the RJ45 cable into the upper RJ45 connection
socket on the second unit’s upper energy storage module.
(5) Insert the other end of the same cable into the lower
RJ45 connection socket on the first unit’s lower energy
storage module. The first unit does not have a terminating
resistor.
•Thetwounitsarenowconnected.
ThedistributionboxandtheHVcable(50 mm²)arenot
supplied with the Mercedes-Benz Energy Storage Home.
You should replace the RJ45 ribbon cable for the second
unit with a longer RJ45 cable (not supplied).
Note that the cables in the distribution box must be
connected in parallel!
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4
2
1
3
3
4.5 System cover
(1) Insert the RJ45 ribbon cable into the RJ45 connection
socket inside the system cover.
(2) Place the system cover on top of the upper energy
storagemodule,runningtheHVcable(25 mm²,positive
terminal) and the protective earth through the left-hand
slotinthesystemcoverandtheHVcable(25 mm²,
negative terminal) through the right-hand slot.
(3) Use the expanding rivets to fasten the system cover
to the right- and left-hand sides of the energy storage
module.
•Systemcovernowmounted.
(4) Insert the RJ45 cable for communication with the inverter
into the RJ45 connection socket on top of the system
cover.
•Communicationlinkwiththeinverternowconnected.
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2
3
4
4
(1) Insert the groove on the trunking cover base into the
tongue on the base.
(2) Press the trunking cover onto the base.
(3)Usethehexkey(3 mm)toscrewthetrunkingcovertight.
(4) Repeat the process to attach the energy storage module
trunking cover to the energy storage module.
(5) Repeat the process on both sides of the Mercedes-Benz
Energy Storage Home modules until all trunking covers
have been mounted.
•Trunkingcoversnowmounted.
4.6 Trunking cover
In the case of wall assembly, start with the initial energy
storage module as there is no base used.
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Mercedes-Benz Energy Storage Home Manual | Installation

5. Starting up
6. Dismantling
DANGER
Arc flash hazard
If wires connected to the active system become detached, their high energy content means there is a high risk
of arc flash. Arc flash poses a threat to life and limb.
•Wiresmustbecorrectlyattached(maintenance-freeandstrain-relieved)!
•Wiresmayonlybeconnectedordisconnectedwiththepoweroff(beforestartinguporafterswitchingoff)!
WARNING
Falling module hazard
Energystoragemodulesareheavyenoughtoinjurebodypartsordamageobjectseveniffallingfromalow
height.
•Wearsuitableprotectiveequipmentwhentransportingorassemblingenergystoragemodules!
[2.2 Personal protective equipment (PPE); S.8]
•Usethehandlesprovidedwhenliftingandcarryingtheenergystoragemodules!
•Duringinstallationtakecaretofollowtheinstructionsgiveninthismanual![4.Installation;S.12]
•Forsafetyreasons,anymodulesthathavefallencannotbereused!
The inverter used with the Mercedes-Benz Energy Storage
Home determines how it is started up for the first time. For
this reason, refer to ‘Recommended procedure for setting up
the system,’ which is enclosed, for further information. Make
sure you have the correct documentation for your inverter.
The user should absolutely not connect, power up,
or perform similar actions on their own. If you had
successfully commissioned the Mercedes-Benz
Energy Storage Home, yet now you think something
isdefective,orevenjustsuspectit,becauseit
disconnected from the grid or powered down (due
to a malfunctioning inverter, power outage, defective
cables, for example), you should contact your sales
representative or installation technician.
CAUTION
Electrostatic discharge hazard
As a rule, electrostatic discharges do not cause harmful current surges. However, they may startle you,
leading to the risk of an accident or damage to electronic equipment.
•BeforetouchingtheMercedes-BenzEnergyStorageHomeduringassemblyormaintenancework,either
earth all tools or wear ESD-appropriate protective equipment (gloves as a minimum)!
•Beawareofyoursurroundings!
•Duringinstallationtakecaretofollowtheinstructionsgiveninthismanual!
[4. Installation; S.12]
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