Vaillant 0020230738 User manual

en Operating instructions
en Installation instructions
dk Betjeningsvejledning
dk Installationsvejledning
de Betriebsanleitung
de Installationsanleitung
es Instrucciones de funcionamiento
es Instrucciones de instalación
fr Notice d’emploi
fr Notice d’installation
hr Upute za korištenje
hr Upute za instaliranje
hu Kezelési útmutató
hu Szerelési útmutató
it Istruzioni per l'uso
it Istruzioni per l'installazione
mk Упатство за користење
mk Упатство за инсталација
nl Gebruiksaanwijzing
nl Installatiehandleiding
pl Instrukcja obsługi
pl Instrukcja instalacji
pt Manual de instruções
pt Manual de instalação
ru Руководство по эксплуатации
ru Руководство по монтажу
sk Návod na obsluhu
sk Návod na inštaláciu
sl Navodila za uporabo
sl Navodila za namestitev
sq Manuali i përdorimit
sq Udhëzuesi i instalimit
sr Uputstvo za rad
sr Uputstvo za instalaciju
en Country specifics and addresses
0020230738
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Tel. [phone]‑0 Fax [phone]‑2810
[email protected] www.vaillant.de

UNIDOMO®
www.unidomo.de
04621- 30 60 89 0
[email protected]
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a member of DAIKIN group
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  

en Operating instructions ....................................... 1
en Installation instructions ...................................... 8
dk Betjeningsvejledning ........................................ 19
dk Installationsvejledning...................................... 26
de Betriebsanleitung ............................................. 36
de Installationsanleitung........................................ 43
es Instrucciones de funcionamiento ................... 53
es Instrucciones de instalación ............................ 60
fr Notice d’emploi ................................................. 71
fr Notice d’installation........................................... 78
hr Upute za korištenje ............................................ 89
hr Upute za instaliranje ........................................... 96
hu Kezelési útmutató ............................................ 106
hu Szerelési útmutató ............................................ 113
it Istruzioni per l'uso .......................................... 123
it Istruzioni per l'installazione............................ 130
mk Упатство за користење .................................. 141
mk Упатство за инсталација ................................ 148
nl Gebruiksaanwijzing ........................................ 159
nl Installatiehandleiding...................................... 166
pl Instrukcja obsługi ............................................. 177
pl Instrukcja instalacji............................................ 184
pt Manual de instruções ..................................... 194
pt Manual de instalação....................................... 201
ru Руководство по эксплуатации ...................... 211
ru Руководство по монтажу ................................ 218
sk Návod na obsluhu ............................................ 229
sk Návod na inštaláciu .......................................... 236
sl Navodila za uporabo ........................................ 246
sl Navodila za namestitev .................................... 253
sq Manuali i përdorimit ......................................... 263
sq Udhëzuesi i instalimit........................................ 270
sr Uputstvo za rad ................................................ 280
sr Uputstvo za instalaciju...................................... 287
en Country specifics and addresses.............. 297

Contents
0020230756_00 0020230738 Operating instructions 1
Operating instructions
Contents
1 Safety.................................................................... 2
1.1 Action-related warnings ......................................... 2
1.2 Intended use.......................................................... 2
1.3 General safety information .................................... 2
1.4 Regulations (directives, laws, standards).............. 3
2 Notes on the documentation .............................. 4
2.1 Observing other applicable documents ................. 4
2.2 Storing documents................................................. 4
2.3 Validity of the instructions...................................... 4
3 Product description............................................. 4
3.1 Design of the PV electrical immersion heater........ 4
3.2 Design of the Energy Manager.............................. 4
3.3 Function................................................................. 4
3.4 CE label ................................................................. 5
4 Operation.............................................................. 5
4.1 Overview of the setting control functions............... 5
4.2 Flashing sequence for the PV electrical
immersion heater signal LED ................................ 5
4.3 Flashing sequence of the Energy Manager
signal LEDs............................................................ 6
5 Troubleshooting .................................................. 6
5.1 Detecting and rectifying faults ............................... 6
6 Care and maintenance ........................................ 6
6.1 Caring for the product............................................ 6
7 Decommissioning................................................ 6
7.1 Temporarily decommissioning the product............ 6
7.2 Permanently decommissioning the product........... 7
7.3 Recycling and disposal.......................................... 7
8 Guarantee and customer service....................... 7
8.1 Guarantee.............................................................. 7
8.2 Customer service................................................... 7

1 Safety
2Operating instructions 0020230738 0020230756_00
1 Safety
1.1 Action-related warnings
Classification of action-related warnings
The action-related warnings are classified in
accordance with the severity of the possible
danger using the following warning signs and
signal words:
Warning symbols and signal words
Danger!
Imminent danger to life or risk of
severe personal injury
Danger!
Risk of death from electric shock
Warning.
Risk of minor personal injury
Caution.
Risk of material or environmental
damage
1.2 Intended use
There is a risk of injury or death to the user or
others, or of damage to the product and other
property in the event of improper use or use
for which it is not intended.
The PV electrical immersion heater is only
designed for increasing the energy efficiency
of photovoltaic installations. It can therefore
only be switched on or off via the Energy
Manager.
The Energy Manager is an analyser that de-
termines the electrical measured values at
the point of connection and provides these
via LAN, WLAN or RS485.
The Energy Manager is NOT an electricity
counter for active consumption within the
meaning of the EU directive 2004/22/EC
(MID); it must only be used for internal ac-
counting purposes.
Intended use includes the following:
–observance of the operating instructions
included for the product and any other
system components
–compliance with all inspection and main-
tenance conditions listed in the instruc-
tions.
This product can be used by children aged
from 8 years and above and persons with
reduced physical, sensory or mental capabil-
ities or lack of experience and knowledge if
they have been given supervision or instruc-
tion concerning use of the product in a safe
way and understand the hazards involved.
Children must not play with the product.
Cleaning and user maintenance work must
not be carried out by children unless they are
supervised.
Any other use that is not specified in these
instructions, or use beyond that specified in
this document shall be considered improper
use. Any direct commercial or industrial use
is also deemed to be improper.
Caution.
Improper use of any kind is prohibited.
1.3 General safety information
1.3.1 Danger caused by improper
operation
Improper operation may present a danger to
you and others, and cause material damage.
▶Carefully read the enclosed instructions
and all other applicable documents, par-
ticularly the "Safety" section and the warn-
ings.
▶Only carry out the activities for which in-
structions are provided in these operating
instructions.
1.3.2 Risk of material damage caused by
frost
▶Ensure that the heating installation always
remains in operation during freezing con-
ditions and that all rooms are sufficiently
heated.
▶If you cannot ensure the operation, have a
competent person drain the heating install-
ation.
1.3.3 Risk of death due to changes to the
product or the product environment
▶Never remove, bridge or block the safety
devices.
▶Do not tamper with any of the safety
devices.
▶Do not damage or remove any seals on
components.
▶Do not make any changes:

Safety 1
0020230756_00 0020230738 Operating instructions 3
–The product itself
–The water and electricity supply lines
–to the expansion relief valve
–to the drain pipework
–to constructional conditions that may
affect the operational reliability of the
product
1.3.4 Risk of injury and material damage
due to maintenance and repairs
carried out incorrectly or not carried
out at all
▶Never attempt to carry out maintenance
work or repairs on your product yourself.
▶Faults and damage should be immediately
rectified by a competent person.
▶Adhere to the maintenance intervals spe-
cified.
1.4 Regulations (directives, laws,
standards)
▶Observe the national regulations, stand-
ards, guidelines and laws.

2 Notes on the documentation
4Operating instructions 0020230738 0020230756_00
2 Notes on the documentation
2.1 Observing other applicable documents
▶You must observe all operating instructions enclosed with
the system components.
2.2 Storing documents
▶Keep this manual and all other applicable documents
safe for future use.
2.3 Validity of the instructions
These instructions apply only to:
Product article number
PV electrical immersion
heater including Energy
Manager
0020230738
3 Product description
The product consists of a screw-in heating element (elec-
trical immersion heater) and an Energy Manager (installed
in the control cabinet/fuse box), which regulates the heating
output depending on the electrical energy that is available
(e.g. from a photovoltaic installation).
3.1 Design of the PV electrical immersion
heater
4
2
3
5
1
1 Data plate (under the
cover)
2 Electrical immersion
heater
3 Domestic hot water
temperature setting
control
4 Signal LED
5 Cylinder
3.2 Design of the Energy Manager
2
4
5
6
7
8
1
3
1 Energy Manager
2 RS485 connection
3 Identification plate
4 LAN connection
5 Reset button
6 RS485 signal LED
communication
7 LAN signal LED
8 Operating status of
the signal LED for the
Energy Manager
The software that is installed on the Energy Manager can
measure and visualise the use of electricity from the network
(energy supply company) and the feed-in into the network
(e.g. via the photovoltaic installation). The visualisation is
available in a web interface and in apps for iOS and Android
(see the separate user manual for the Energy Manager's
user interface).
3.3 Function
The Energy Manager monitors the excess electricity from re-
newable power generation (e.g. the photovoltaic installation),
visualises and saves the energy balance, and sends the data
to the PV electrical immersion heater, which converts the
energy that is available in 500 W increments (up to 3500 W)
into thermal energy in a controlled fashion.
The data that the Energy Manager collects regarding the
installation's energy production may differ from the data from
the main energy counter.
The PV electrical immersion heater only heats with excess
electricity that it has generated itself and that would be fed
back into the energy supply company's network if there was
no PV electrical immersion heater. The PV electrical immer-
sion heater continuously receives the information that suffi-
cient current is available for activating one, two or three heat-
ing circuits (3500 W in total) from the Energy Manager. As
soon as another consumer is switched on and electricity that
was not generated by the PV electrical immersion heater
is available, the PV electrical immersion heater regulates
its power downwards in stages and switches its immersion
heater circuits off entirely.
The PV electrical immersion heater is switched off when
there is no longer any excess electricity available or when
the maximum water temperature in the cylinder, which is set
via the setting control on the PV electrical immersion heater,
is reached.
Switch-on and switch-off times that are adjusted to the
power of the three immersion heater circuits apply here. One
immersion heater circuit remains switched on for at least
10 seconds before it can be switched off. If the photovoltaic

Operation 4
0020230756_00 0020230738 Operating instructions 5
installation no longer provides sufficient excess energy, it
may be the case that the immersion heater circuit is oper-
ated for a maximum of 10 seconds with energy from the
energy supply company before the PV electrical immersion
heater is switched off.
If the PV electrical immersion heater has been switched,
it remains switched off for a minimum of 110, 170 or
230 seconds, depending on the power, before it can be
switched on again.
Example: Even if the Energy Manager reports a feed-in of
1000 W to the PV electrical immersion heater, the 1000 W
immersion heater circuit remains switched off for at least
170 seconds as soon as it is switched on and then off again,
before it can heat again.
For safety reasons, the Energy Manager must continuously
communicate with the PV electrical immersion heater via
the RS485 interface. If communication no longer takes
place after 10 seconds, the PV electrical immersion heater
switches the immersion heater circuits off and displays the
status "No connection" (operating status signal LED lights up
permanently in red).
3.4 CE label
The CE label shows that the products comply with the basic
requirements of the applicable directives as stated on the
identification plate.
The declaration of conformity can be viewed at the manufac-
turer's site.
4 Operation
4.1 Overview of the setting control functions
Setting control position Function
OFF
The heating is not switched on
when there is a requirement
for the Energy Manager via the
RS485 interface. It is also not
switched on when the cylinder
temperature falls below the frost-
protection temperature.
Frost protection activated. Heat-
ing output is 0 W. If the cylinder
temperature falls below 4 °C
±3 K, the status display flashes
orange for 9 seconds. Pause.
The PV electrical immersion
heater heats with 500 W power
until the cylinder temperature of
8 °C ±3 K is exceeded.
The max. cylinder temperature
is limited to approx. 40 °C. Upon
request by the Energy Manager,
the PV electrical immersion
heater heats with the power
that is possible depending on
the excess electricity until the
maximum cylinder temperature
of 40 °C is reached.
Setting control position Function
The max. cylinder temperature
is limited to approx. 60 °C. Upon
request by the Energy Manager,
the PV electrical immersion
heater heats with the power
that is possible depending on
the excess electricity until the
maximum cylinder temperature
of 60 °C is reached.
The max. cylinder temperature
is limited to approx. 80 °C. Upon
request by the Energy Manager,
the PV electrical immersion
heater heats with the power
that is possible depending on
the excess electricity until the
maximum cylinder temperature
of 80 °C is reached.
4.2 Flashing sequence for the PV electrical
immersion heater signal LED
Flashing
sequence
Meaning Required activity
Off The PV electrical immer-
sion heater is in the OFF
operating mode or no
mains voltage is present.
If required, switch
on the power
supply and the
PV electrical
immersion heater.
Flashes or
lights up per-
manently or-
ange
The PV electrical immer-
sion heater is in the frost
protection mode.
No activity re-
quired.
Lights up per-
manently
green or
flashes rhyth-
mically
Permanently on: Commu-
nication with the Energy
Manager is working. The
heating output is 0 W
(heating off).
Flashing rhythms display
the current heating out-
put. The flashing period is
approx. 10 seconds:
–1 x green flash, 9-
second pause: 500 W
–2 x green flash,
8-second pause:
1000 W
–3 x green flash,
7-second pause:
1500 W
–4 x green flash,
6-second pause:
2000 W
–5 x green flash,
5-second pause:
2500 W
–6 x green flash,
4-second pause:
3000 W
–7 x green flash,
3-second pause:
3500 W
No activity re-
quired.

5 Troubleshooting
6Operating instructions 0020230738 0020230756_00
Flashing
sequence
Meaning Required activity
Flashes green
without paus-
ing
The set max. water
temperature has been
reached.
Wait until the cyl-
inder has cooled
or draw domestic
hot water. After
cooling the cylin-
der and switch-
ing the PV elec-
trical immersion
heater back on,
the display lights
up red for a short
period (up to max.
1 min.). This is not
an error!
Flashes or
lights up per-
manently red
An error has occurred.
A serious error has oc-
curred.
Inform a compet-
ent person.
4.3 Flashing sequence of the Energy Manager
signal LEDs
Flashing sequence Meaning
Operating status signal LED
Lights up green Energy Manager switched on
Slowly flashes green Energy Manager starts
Flashes quickly and
uniformly in green
Firmware update is running
Flashes green in
pulses
Reset button acknowledgement
Lights up red A fault has occurred
Lights up orange Bootloader active
LAN signal LED
Off No LAN connection
Lights up green LAN connection active
Flashes green Network activity
RS485 signal LED communication
Off PV electrical immersion heater not de-
tected
Flashes green for two
minutes
Initial connection set-up for the initial
start-up of a PV electrical immersion
heater
Briefly flashes orange Verify the connection to the PV elec-
trical immersion heater when restarting
the Energy Manager
Flashes or lights up
green
Communication with the PV electrical
immersion heater
5 Troubleshooting
5.1 Detecting and rectifying faults
Conditions: Domestic hot water temperature does not reach the set tem-
perature
▶Insufficient excess energy from the photovoltaic installa-
tion is available to heat up the cylinder to the temperat-
ure that is set on the PV electrical immersion heater.
Conditions: The signal LED on the PV electrical immersion heater flashes
or lights up red
▶Inform a competent person.
Conditions: The operating status signal LED on the Energy Manager
lights up red
▶Inform a competent person.
Conditions: The RS485 communication signal LED on the Energy Man-
ager is off
▶Inform a competent person.
6 Care and maintenance
6.1 Caring for the product
Conditions: PV electrical immersion heater
Caution.
Risk of material damage caused by un-
suitable cleaning agents.
▶Do not use sprays, scouring agents, de-
tergents, solvents or cleaning agents that
contain chlorine.
▶Clean the casing on the PV electrical immersion heater
with a damp cloth and a little solvent-free soap.
Conditions: Energy Manager
▶Disconnect it from the power supply.
▶Only clean the Energy Manager with a dry cloth.
7 Decommissioning
7.1 Temporarily decommissioning the product
1. Set the settings control for the PV electrical immersion
heater to the "OFF" position.
2. Ensure that sufficient frost protection is guaranteed.

Guarantee and customer service 8
0020230756_00 0020230738 Operating instructions 7
7.2 Permanently decommissioning the product
▶Have a competent person permanently decommission
the product.
7.3 Recycling and disposal
If the product is labelled with this mark:
▶In this case, do not dispose of the product with the
household waste.
▶Instead, hand in the product to a collection centre for
waste electrical or electronic equipment.
If the product contains batteries that are labelled with
this mark, these batteries may contain substances that are
hazardous to human health and the environment.
▶In this case, dispose of the batteries at a collection point
for batteries.
8 Guarantee and customer service
8.1 Guarantee
For information on the manufacturer's guarantee, please
write to the contact address that is provided in the appendix.
8.2 Customer service
The contact details for our customer service are provided in
the appendix or on our website.

Contents
8Installation instructions 0020230738 0020230756_00
Installation instructions
Contents
1 Safety.................................................................... 9
1.1 Action-related warnings ......................................... 9
1.2 Intended use.......................................................... 9
1.3 General safety information .................................... 9
1.4 Regulations (directives, laws, standards)............ 10
2 Notes on the documentation ............................ 11
2.1 Observing other applicable documents ............... 11
2.2 Storing documents............................................... 11
2.3 Validity of the instructions.................................... 11
3 Product description........................................... 11
3.1 Design of the PV electrical immersion heater...... 11
3.2 Design of the Energy Manager............................ 11
3.3 CE label ............................................................... 11
4 Set-up.................................................................. 11
4.1 Checking the scope of delivery............................ 11
4.2 Required accessories .......................................... 12
5 Installation.......................................................... 12
5.1 Removing the inspection opening ....................... 12
5.2 Installing the PV electrical immersion heater....... 12
5.3 Establishing the power supply ............................. 13
5.4 Connecting the power supply to the PV
electrical immersion heater.................................. 13
5.5 Connecting the RS485 data cable to the PV
electrical immersion heater.................................. 13
5.6 Installing the Energy Manager............................. 14
5.7 Connecting the RS485 data cable to the
Energy Manager .................................................. 15
6 Start-up............................................................... 15
6.1 Starting up the PV electrical immersion heater .... 15
6.2 Starting up the Energy Manager.......................... 15
7 Troubleshooting ................................................ 16
7.1 Eliminating faults.................................................. 16
7.2 Releasing the safety cut-out after shutdown ....... 16
7.3 Restarting the Energy Manager........................... 17
7.4 Resetting the Energy Manager to factory
settings ................................................................ 17
8 Decommissioning.............................................. 17
8.1 Decommissioning the product ............................. 17
8.2 Recycling and disposal........................................ 17
9 Customer service............................................... 17
9.1 Customer service................................................. 17
10 Technical data.................................................... 17
10.1 Technical data for the PV electrical immersion
heater................................................................... 17
10.2 Technical data for the Energy Manager .............. 18

Safety 1
0020230756_00 0020230738 Installation instructions 9
1 Safety
1.1 Action-related warnings
Classification of action-related warnings
The action-related warnings are classified in
accordance with the severity of the possible
danger using the following warning signs and
signal words:
Warning symbols and signal words
Danger!
Imminent danger to life or risk of
severe personal injury
Danger!
Risk of death from electric shock
Warning.
Risk of minor personal injury
Caution.
Risk of material or environmental
damage
1.2 Intended use
There is a risk of injury or death to the user or
others, or of damage to the product and other
property in the event of improper use or use
for which it is not intended.
The PV electrical immersion heater is only
designed for increasing the energy efficiency
of photovoltaic installations. It can therefore
only be switched on or off via the Energy
Manager.
The Energy Manager is an analyser that de-
termines the electrical measured values at
the point of connection and provides these
via LAN, WLAN or RS485.
The Energy Manager is NOT an electricity
counter for active consumption within the
meaning of the EU directive 2004/22/EC
(MID); it must only be used for internal ac-
counting purposes.
Intended use includes the following:
–observance of accompanying operating,
installation and servicing instructions for
the product and any other system compon-
ents
–installing and fitting the product in accord-
ance with the product and system approval
–compliance with all inspection and main-
tenance conditions listed in the instruc-
tions.
Intended use also covers installation in ac-
cordance with the IP class.
Any other use that is not specified in these
instructions, or use beyond that specified in
this document shall be considered improper
use. Any direct commercial or industrial use
is also deemed to be improper.
Caution.
Improper use of any kind is prohibited.
1.3 General safety information
1.3.1 Risk caused by inadequate
qualifications
Applicability: Not for Russia
The following work must only be carried out
by competent persons who are sufficiently
qualified to do so:
Applicability: Russia
The following work must only be carried out
by Vaillant-certified competent persons who
are sufficiently qualified to do so:
–Set-up
–Dismantling
–Installation
–Start-up
–Inspection and maintenance
–Repair
–Decommissioning
▶Observe all instructions that are included
with the product.
▶Proceed in accordance with the current
technology.
▶Observe all applicable directives, stand-
ards, laws and other regulations.
1.3.2 Risk of death from electric shock
There is a risk of death from electric shock if
you touch live components.
Before commencing work on the product:
▶Disconnect the product from the power
supply by switching off all power supplies
at all poles (electrical partition with a con-

1 Safety
10 Installation instructions 0020230738 0020230756_00
tact opening of at least 3 mm, e.g. fuse or
line protection switch).
▶Secure against being switched back on
again.
▶Check that there is no voltage.
1.3.3 Risk of material damage caused by
frost
▶Do not install the product in rooms prone
to frost.
1.3.4 Risk of being burned or scalded by
hot components
▶Only carry out work on these components
once they have cooled down.
1.3.5 Risk of material damage caused by
using an unsuitable tool
▶Use the correct tool to tighten or loosen
screw connections.
1.3.6 Risk of death due to lack of safety
devices
The schematic drawings included in this doc-
ument do not show all safety devices re-
quired for correct installation.
▶Install the necessary safety devices in the
system.
▶Observe the applicable national and inter-
national laws, standards and guidelines.
1.4 Regulations (directives, laws,
standards)
▶Observe the national regulations, stand-
ards, guidelines and laws.

Notes on the documentation 2
0020230756_00 0020230738 Installation instructions 11
2 Notes on the documentation
2.1 Observing other applicable documents
▶You must observe all the operating and installation in-
structions included with the system components.
2.2 Storing documents
▶Pass these instructions and all other applicable docu-
ments on to the system operator.
2.3 Validity of the instructions
These instructions apply only to:
Product article number
PV electrical immersion
heater including Energy
Manager
0020230738
3 Product description
The product consists of a screw-in heating element (PV elec-
trical immersion heater) and an Energy Manager (installed
in the control cabinet/fuse box), which regulates the heating
output depending on the electrical energy that is available
(e.g. from a photovoltaic installation).
3.1 Design of the PV electrical immersion
heater
1
2
4
3
67
9
10
8
5
11
1 Insulating element for
the upper half-ring
2 Inspection opening seal
3 Immersion heaters
4 Reducing flange, pre-
installed with seal to the
screw head
5 PG screwed connection
for the electrical con-
nection
6 Insulating element for
the lower half-ring
7 Insulating sleeve for the
immersion heater head
8 Signal LED
9 PG screwed connection
for the RS485 data
cable
10 Setting control
11 Data plate
3.2 Design of the Energy Manager
6
1
2
4
7
8
9
10
3
5
1 Outputs: Phases L1, L2,
L3
2 RS485 connection
3 Identification plate
4 LAN connection
5 Neutral conductor N
input
6 Inputs: Phases L1, L2,
L3
7 Reset button
8 RS485 signal LED
communication
9 LAN signal LED
10 Operating status of
the signal LED for the
Energy Manager
The software that is installed on the Energy Manager can
measure and visualise the use of electricity from the network
(energy supply company) and the feed-in into the network
(e.g. via the photovoltaic installation). The visualisation is
available in a web interface and in apps for iOS and Android
(see the specific operation instructions for the Energy Man-
ager's user interface).
3.3 CE label
The CE label shows that the products comply with the basic
requirements of the applicable directives as stated on the
identification plate.
The declaration of conformity can be viewed at the manufac-
turer's site.
4 Set-up
4.1 Checking the scope of delivery
▶Check that the scope of delivery is complete and intact.
Number Designation
1PV electrical immersion heater
1Reducing flange
1 Inspection opening seal
1 Energy Manager
1 Plug-in RS485 spring terminal block
1Operating and installation instructions

5 Installation
12 Installation instructions 0020230738 0020230756_00
4.2 Required accessories
For connecting to the Energy Manager via LAN:
–1 x network cable, CAT 5e, RJ45
For the RS485 connection between the PV electrical immer-
sion heater and the Energy Manager:
–Cable cross-section: 0.25 to 1.5 mm²
–Cable type: Four-core, rigid or flexible, twisted in pairs,
shielded
–Max. length 10 m
–Alternative: CAT 5e cable
–Nominal voltage/conductor insulation: 300 V RMS
5 Installation
Caution.
Risk of material damage caused by corro-
sion and short circuit caused by incorrect
earthing
If you insert an electrical immersion heater
into the cylinder, the existing external voltage
may build up electrical potential in the water,
which may result in the electromechanical
corrosion of the electrical immersion heater.
▶Ensure that both the domestic hot water
and cold water pipes are directly connec-
ted to the cylinder via an earth cable to the
main earth rail.
▶You must also ensure that the electrical
immersion heater is also connected to the
main earth rail via the earthing terminal.
Only qualified electricians may carry out the electrical install-
ation.
The PV electrical immersion heater must only be installed
horizontally. Vertical installation is not permitted.
Use a power supply cable that is permitted for a temperature
of 80 °C for the electrical connection of the PV electrical im-
mersion heater.
Ensure that the domestic hot water cylinder is filled before
you start up the PV electrical immersion heater.
To ensure that the PV electrical immersion heater can work
for many years, the following minimum quality is recommen-
ded for the fresh water: Chloride content < 120 mg/l, water
hardness < 2.4965 mmol/l (< 14°dH;< 24.987°fH; < 140 mg
CaCO/l; < 249.87 mg CaCO₃/l; < 249.87 ppm (mg CaCO₃/l)).
If the water hardness is higher, we recommend using a water
softener.
5.1 Removing the inspection opening
1
2
3
4
5
6
1. Disconnect the domestic hot water cylinder from the
power supply, if required.
2. Drain the domestic hot water cylinder.
3. Remove the insulating elements (5) and (6).
4. Remove the screws (4) for securing the cover (3) for the
inspection opening (1).
5. Remove the cover and seal (2).
5.2 Installing the PV electrical immersion
heater
1. Use the new seal that is supplied for the inspection
opening.

Installation 5
0020230756_00 0020230738 Installation instructions 13
Danger!
Risk of material damage caused by over-
tightening the thread
The reducing flange is pre-installed with a
specific torque on the thread of the electrical
immersion heater, meaning that the drilling
hole pattern and immersion heaters are at the
ideal distance from each other. If you further
tighten the reducing flange on the thread
for the electrical immersion heater, this may
damage the thread.
▶Install the electrical immersion heater with
pre-installed reducing flange as supplied.
2. Install the PV electrical immersion heater as shown.
3. Tighten the screws on the reducing flange in a cross-
wise pattern.
5.3 Establishing the power supply
The external power supply cable must be earthed and con-
nected with the correct polarity and in accordance with the
valid regulations.
▶For the wired power supply, install an all-pole partition
from the network with a contact opening width of at least
3 mm per pole (e.g. fuses or power switches).
–16 A fuse protection
5.4 Connecting the power supply to the PV
electrical immersion heater
1 2
4 3
1. Remove the rotary knob (4) from the setting control.
2. Remove the four hex screws (3).
3. Remove the connector housing (1) and the seal (2).
L1 N
1
2
3
4. Guide the cable (2) through the power supply open-
ing and into the housing, and secure it using the PG
screwed connection (1).
–Recommended tightening torque: ≤6.0 Nm
5. Connect the conductors to the terminal block (3).
5.5 Connecting the RS485 data cable to the PV
electrical immersion heater
C
(GND)
BAD
1
2
1. Guide the RS485 cable through the opening in the con-
nector housing (1).
2. Connect the conductors to the terminal block (2), as
shown.
3. Allow one side of the cable shield to make contact with
GND (C) on the side of the PV electrical immersion
heater.
1 2
4 3
4. Fit the seal (2) and connector housing (1), and install
the four hex screws (3).

5 Installation
14 Installation instructions 0020230738 0020230756_00
–Recommended tightening torque: ≤1.9 Nm
5. Use the PG screwed connection to secure the cable.
–Recommended tightening torque: ≤6.0 Nm
6. Fit the rotary knob (4) on the setting control.
5.6 Installing the Energy Manager
In accordance with its classification into overvoltage cat-
egory III, the Energy Manager must only be connected in
the sub-distribution or electric circuit distribution on the con-
sumer side downstream of the energy supply company's
energy counter.
The Energy Manager must only be installed in approved
buildings or electric distributors, meaning that the connec-
tions for the outer and neutral conductors are located down-
stream of a cover or touch protection.
The Energy Manager is supplied with power via the outer
conductor L1. As a minimum, the outer conductor L1 and the
neutral conductor N must be connected so that the unit can
be switched on.
The fuse protection must not exceed 32 A. Use an external
current transformer for higher currents.
The Energy Manager must be connected to lines with a
cross-section of at least 10 mm²and whose length must not
exceed 1 m.
The end user must be able to switch off the Energy Manager
so that it is voltage-free using a freely accessible counter
fuse or an additional off switch.
Before carrying out any installation and/or maintenance
work, switch off the electric distributor so that it is voltage-
free, and secure it against being unintentionally switched
back on again.
If you want to permanently route a network cable, comply
with the stipulated minimum clearances between the network
cable and the mains-voltage-carrying installation compon-
ents or use suitable insulation.
▶Install the Energy Manager on the top hat rail in the elec-
tronics box in close proximity to the connections that are
to be measured.
5.6.1 Connecting the Energy Manager for direct
measurement
L1
L1
L2
L2
L3
L3
L1
L1
L2
L2
L3
L3 N
L1
Reset
OUT L2 L3
IN L1 L 2 L 3 N
L1 L2 L3
L1 L 2 L 3 N
2
3
4
5
1
6
1 Consumer
2 Energy Manager
3 Off switch
4 Energy counter from the
energy supply company
5 Counter fuses 3 x 63 A
6 Public power grid
230 V/400 V
1. Connect the conductor to the Energy Manager as
shown in the connection diagram.
–With a three-phase power grid, connect the outer
conductors L1, L2 and L3 and the neutral conductor
N.
–With a single-phase power grid, connect the outer
conductor L1 and the neutral conductor N.
2. Observe the permissible tightening torque for the screw
terminals.
–Tightening torque for screw terminals: 2.0 Nm
5.6.2 Connecting the Energy Manager for indirect
measurement
Conditions: Currents higher than 63 A present
▶Use external current transformers (bar-type or folding
current transformer).
▶Connect the Energy Manager for indirect measurement;
see the enclosed installation instructions for the Energy
Manager from B-control or the download area on the
website www.b-control.com.

Start-up 6
0020230756_00 0020230738 Installation instructions 15
5.7 Connecting the RS485 data cable to the
Energy Manager
In the connection area for the RS485 interface on the Energy
Manager, you must ensure, from a mechanical point of view,
that individual conductors for the connection cable have a
clearance of at least 10 mm from current-carrying parts.
The connection cable must be routed separately from the
power supply cables in the manifold and on the installation
section.
(GND)
CBAD
▶Connect the conductors for the RS485 data cable to the
PC spring terminal block as shown.
–Two conductors drilled in pairs with A to A and two
conductors drilled in pairs with B to B
–Shielding or separate conductor as GND (C) to C
▶Insert the PC spring terminal block into the bush on the
Energy Manager as shown.
6 Start-up
6.1 Starting up the PV electrical immersion
heater
1. Fill the domestic hot water cylinder.
2. Check the inspection opening for leaks.
C
A
B
3. Install the insulating elements.
4. Switch on the power supply.
5. Use the setting wheel to set the temperature to which
you want to heat up the PV electrical immersion heater.
6.2 Starting up the Energy Manager
Note
After connecting the Energy Manager to the PV
electrical immersion heater via the RS485 data
cable, it takes approx. two minutes for the Energy
Manager to establish communication with the PV
electrical immersion heater.
1. Cover the Energy Manager with the cover or the contact
protection for the sub-distribution.
2. Only start up the Energy Manager with a PC/notebook
and not via the smartphone app.
3. Download the "Double tip" operating instructions for the
user interface of the Energy Manager (incl. PV electrical
immersion heater) from the product page at: www.b-
control.com.
4. You must work through the installation assistant for the
Energy Manager in order to trigger a restart with the
parameters that are entered and to trigger a scan of the
RS485 connection. Enter at least the date and time.
5. Switch off the power supply to the sub-distribution.
Conditions: Connection via LAN
▶Connect the network cable to the network connection for
the Energy Manager.
▶Connect the other end of the network cable to a
router/switch or directly to the PC/notebook.
▶Supply the sub-distribution with electricity again.
◁The signal LEDs for the Energy Manager light up
during the start-up procedure.
▶Open a browser and enter "b-control-em.local" into
the browser's address line in order to call up the user
interface; refer to the downloaded operating instructions.
Conditions: Calling up via the UPnP function
▶Open the file explorer and select the "Network" item
below the drives.
◁The Energy Manager is displayed in addition to other
network devices such as printers.
▶Double-click on the device symbol with the name B-
control-EM to open the browser with the user interface;
refer to the downloaded operating instructions.
Conditions: Calling up via the name resolution
▶Enter the URL "http://b-control-em.local" in the browser's
address line.
▶Press the Enter key.
◁The Energy Manager's user interface opens; refer to
the downloaded operating instructions.
▽The user interface for the Energy Manager does not
open; see Troubleshooting.

7 Troubleshooting
16 Installation instructions 0020230738 0020230756_00
7 Troubleshooting
7.1 Eliminating faults
Conditions: The signal LED on the PV electrical immersion heater is off
▶Check the power supply.
▶Release the safety cut-out. (→Page 16)
Conditions: The signal LED on the PV electrical immersion heater lights
up permanently red
▶Communication via the RS485 data cable is disrupted.
Mechanically check the connection for correct terminat-
ing resistors and correct interface parameters (Modbus).
Conditions: The signal LED on the PV electrical immersion heater flashes
slowly red (without pausing)
▶Use the Energy Manager's user interface to read the
message memory for the PV electrical immersion
heater; refer to the downloaded operating instructions.
▶A temporary fault is usually present, e.g. if the temper-
ature of the PCB is too high. Wait until the cause of the
fault is no longer present.
◁The signal LED stops flashing.
▽The signal LED does not stop flashing.
▶Replace the PV electrical immersion heater.
Conditions: The signal LED on the PV electrical immersion heater flashes
rapidly red (with a three-second pause)
▶Switch off the power supply and switch it on again after
five seconds.
▶If the fault occurs again, replace the PV electrical immer-
sion heater.
Conditions: The operating status signal LED on the Energy Manager is
off.
▶Check the power supply for the Energy Manager.
Conditions: The operating status signal LED on the Energy Manager
flashes or lights up red
▶Restart the Energy Manager. (→Page 17)
Conditions: The RS485 communication signal LED on the Energy Man-
ager is off
▶Check the RS485 data connection to the PV electrical
immersion heater.
Conditions: The LAN signal LED on the Energy Manager is off
▶Check whether the network cable is correctly connected
to the network connection.
▶Connect the Energy Manager to the same router/switch.
Conditions: The user interface for the Energy Manager does not open
▶Download the "B-control Finder" from the product page
under: www.b-control.com.
7.2 Releasing the safety cut-out after shutdown
Caution.
Risk of material damage caused by over-
heating!
If the fault that caused the product to shut
down is not rectified, the product may be-
come damaged.
▶Do not switch the safety cut-out back on
until the cause of the fault that triggered
the safety cut-out has been eliminated.
1. Switch off the power supply.
2. Remove the insulating elements from the PV electrical
immersion heater.
1
24 356
3. Remove the rotary knob (2) from the setting control.
4. Undo the PG screwed connection (3) on the RS485
data cable.
5. Remove the four hex screws (1).
6. Remove the connector housing (4) and the seal (5).
7. Push in the release button for the safety cut-out (6).
8. Fit the seal and the connector housing, and install the
four hex screws.
9. Tighten the PG screwed connection on the RS485 data
cable.
10. Fit the rotary knob on the setting control.
11. Install the insulating elements.
12. Switch on the power supply.

Decommissioning 8
0020230756_00 0020230738 Installation instructions 17
7.3 Restarting the Energy Manager
1
▶Press and hold the reset button with a pointed object for
at least six seconds.
◁The operating signal LED slowly flashes green.
7.4 Resetting the Energy Manager to factory
settings
▶Press the reset button with a pointed object for between
two and six seconds.
◁The network settings are restored.
8 Decommissioning
8.1 Decommissioning the product
1. Disconnect the RS485 connection to the PV electrical
immersion heater on the Energy Manager.
2. If required, uninstall the Energy Manager.
3. Switch off the power supply to the PV electrical immer-
sion heater.
4. Disconnect the power supply.
5. Drain the domestic hot water cylinder.
6. Remove the electrical immersion heater.
7. Install the seal and inspection-opening cover.
8. Install the cover for the inspection opening.
8.2 Recycling and disposal
Disposing of the packaging
▶Dispose of the packaging correctly.
▶Observe all relevant regulations.
9 Customer service
9.1 Customer service
The contact details for our customer service are provided in
the appendix or on our website.
10 Technical data
10.1 Technical data for the PV electrical
immersion heater
PV
Elektroheizstab,
0,5 ... 3,5 kW
Nominal output ≈3.5 kW
Permissible environmental
temperature during operation
0 … 40 ℃
Permissible air humidity in % < 75 (long-term
storage); < 95
(during transport)
Recommended max. water
hardness for potable water
≤14 °dH
Temperature adjustment
range (boiler)
40 … 75 ℃
Permissible temperature for
the water storage
7 … 85 ℃
Domestic hot water operat-
ing temperature
65 ℃
Max. cylinder temperature for
potable water
≤95 ℃
Max. operating pressure for
potable water
≤1 MPa
(≤10 bar)
Min. frost-protection temper-
ature
≥4℃
Max. temperature of the
screw head
≤95 ℃
Max. temperature of the im-
mersion heater surface
≤150 ℃
Max. electrical loading of the
surface
Max. 14.1 W/cm³
Insert length (immersion
depth)
450 mm
Insert diameter ≈36.5 mm
Diameter of the immersion
heaters
6.5 mm
Immersion heater material 2.4858/In-
coloy 825
Immersion heater head ma-
terial
1.4404
Width across flats of the im-
mersion heater head
WAF 60 mm
Threaded connection G 1 1/2 B inch
Recommended tightening
torque for the immersion
heater head
90 … 100 Nm
Length of the immersion
heater head
≈160 mm
Connector housing material PA6 GF30
Net weight of the immersion
heater head
1.28 kg