Vaillant eloSTOR plus User manual

Installation and maintenance instructions
eloSTOR plus,
eloSTOR exclusive
VEN …
AT, DE
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Tel. [phone]‑0 Fax [phone]‑2810
[email protected] www.vaillant.de

Contents
2Installation and maintenance instructions eloSTOR plus, eloSTOR exclusive 0020244339_01
Contents
1 Safety.................................................................... 3
1.1 Intended use.......................................................... 3
1.2 General safety information .................................... 3
1.3 Regulations (directives, laws, standards).............. 4
2 Notes on the documentation .............................. 5
2.1 Observing other applicable documents ................. 5
2.2 Storing documents................................................. 5
2.3 Applicability of the instructions .............................. 5
3 Product description............................................. 5
3.1 Functional elements............................................... 5
3.2 Overview of the operator control elements............ 5
3.3 Information on the identification plate.................... 5
3.4 Installation location for the identification plate....... 6
3.5 CE label ................................................................. 6
4 Set-up.................................................................... 6
4.1 Checking the scope of delivery.............................. 6
4.2 Product dimensions ............................................... 6
4.3 Wall-mounting the product..................................... 7
5 Installation............................................................ 7
5.1 Establishing the water connection ......................... 7
5.2 Filling the product .................................................. 8
5.3 Electrical installation .............................................. 8
6 Start-up................................................................. 9
6.1 Setting the hot water temperature ......................... 9
6.2 Switching on .......................................................... 9
6.3 Handing the product over to the operator.............. 9
7 Troubleshooting .................................................. 9
7.1 Contacting your service partner............................. 9
7.2 Procuring spare parts ............................................ 9
8 Inspection and maintenance ............................ 10
8.1 Observing inspection and maintenance
intervals ............................................................... 10
8.2 Replacing the power supply cable....................... 10
8.3 Removing/installing the product casing............... 10
8.4 Descaling the direct electric domestic hot
water cylinder and electrical immersion
heater................................................................... 10
8.5 Cleaning the cold-water filter ............................... 10
8.6 Replacing the control and/or safety cut-out......... 10
9 Decommissioning.............................................. 11
9.1 Decommissioning the product ............................. 11
10 Customer service............................................... 11
10.1 Customer service................................................. 11
Appendix ............................................................................ 12
A Technical data.................................................... 12

Safety 1
0020244339_01 eloSTOR plus, eloSTOR exclusive Installation and maintenance instructions 3
1 Safety
1.1 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 product is designed only for use as an
open heat generator for hot water generation.
The direct electric domestic hot water cyl-
inder is designed to heat up potable water
in accordance with the applicable quality
standards. If the quality of the potable wa-
ter is poor, there is a risk of corrosion in the
product.
This product only works in conjunction with
low-pressure fittings.
The product is approved exclusively for ver-
tical installation on the wall.
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.
The use of the product in vehicles, such as
mobile homes and caravans, is not classed
as intended use. Units that are not classed
as vehicles are those that are installed in
a fixed and permanent location (known as
"fixed installation").
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.
1.2 General safety information
1.2.1 Risk caused by inadequate
qualifications
The following work must only be carried out
by 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.
1.2.2 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.
1.2.3 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:
▶Unplug the mains plug.
▶Or disconnect the product from the power
supply by switching off all power supplies
(electrical partition with a contact opening
of at least 3 mm, e.g. fuse or line protec-
tion switch).
▶Secure against being switched back on
again.
▶Wait for at least 3 minutes until the con-
densers have discharged.

1 Safety
4Installation and maintenance instructions eloSTOR plus, eloSTOR exclusive 0020244339_01
1.2.4 Material damage due to unsuitable
installation surface
The installation surface must be even and
have sufficient load-bearing capacity to sup-
port the operating weight of the product. An
uneven installation surface may cause leaks
in the product.
There is a risk of death if the connections are
subject to leaks.
▶Make sure that the product is positioned
flush against the installation surface.
▶Ensure that the installation surface has
sufficient load-bearing capacity to bear the
operating weight of the product.
1.2.5 Risk of being burned or scalded by
hot components
▶Only carry out work on these components
once they have cooled down.
1.2.6 Risk of scalding and material
damage due to escaping hot or cold
water
▶If you use plastic pipes for the hot or cold
water connection of the product, you must
only use pipes that are temperature-res-
istant up to 95 °C under a pressure of 1.0
MPa (10 bar).
1.2.7 Risk of material damage caused by
using an unsuitable tool
▶Use the correct tool to tighten or loosen
screw connections.
1.2.8 Risk of material damage caused by
frost
▶Do not install the product in rooms prone
to frost.
1.2.9 Material damage due to leaks
▶Ensure that there is no mechanical tension
on the supply lines.
▶Do not suspend any loads from the
pipelines (e.g. clothing).
▶If there are leaks in the water pipe
between the product and draw-off points,
close the cold water stop valve immedi-
ately.
▶Have the leak repaired by a competent
person.
1.2.10 Material damage when using a timer
If you are using a timer and a fault occurs,
this may lead to the safety cut-out being unin-
tentionally reset. If the product is unintention-
ally reset, this may lead to material damage
of the product.
▶Do not use a timer to control the product.
1.3 Regulations (directives, laws,
standards)
▶Observe the national regulations, stand-
ards, guidelines and laws.

Notes on the documentation 2
0020244339_01 eloSTOR plus, eloSTOR exclusive Installation and maintenance instructions 5
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 Applicability of the instructions
These instructions apply for the following products only:
Product article number
VEN 5/7-5_U 0010021140, 0010021141,
0010021142
VEN 5/7-5_O 0010021139
VEN 5/7-7_U 0010021138
VEN 5/7-7_U_S1 0010021424
3 Product description
3.1 Functional elements
Applicability: Installation above the work surface
AB
1
2
3
4
1 Heating coil
2 Inner vessel
3 Overheating protection
4 Temperature sensor
A Hot water outlet
B Cold water inlet
Applicability: Installation below the work surface
AB
1
2
3
4
1 Heating coil
2 Inner vessel
3 Overheating protection
4 Temperature sensor
A Hot water outlet
B Cold water inlet
3.2 Overview of the operator control elements
1
2
3
1 Temperature selector
2 Control light
3 Energy-saving operation
3.3 Information on the identification plate
Information on the
identification plate
Meaning
Serial number For identification purposes; 7th to 16th
digits = product article number
VEN ... System component for the domestic hot
water generation
eloSTOR Product designation
kW Nominal output
230 V 50 Hz Voltage –frequency
MPa Maximum pressure
IP (e.g. X4D) Degree of protection against water

4 Set-up
6Installation and maintenance instructions eloSTOR plus, eloSTOR exclusive 0020244339_01
3.4 Installation location for the identification
plate
Applicability: Installation above the work surface
1
1 Identification plate
Applicability: Installation below the work surface
1
1 Identification plate
3.5 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.
Applicability: eloSTOR plus
Quant-
ity Description
1Product
1Documentation records
1Low-pressure valve (depending on the unit variant)
1Wall-mounting base
Applicability: eloSTOR exclusive
Quant-
ity Description
1Product
1Documentation records
1Wall-mounting base
4.2 Product dimensions
Applicability: Installation above the work surface
h
c
f
g
d
b
e100
140
1/2"1/2"
Applicability: Installation below the work surface
g
fd
c
a
b
e
100
140
h
3/8"3/8"
Unit dimensions
5L O 5L U
Dimen-
sion (a)
−315 mm
Dimen-
sion (b)
400 mm 400 mm
Dimen-
sion (c)
419 mm 419 mm
Dimen-
sion (d)
240 mm 240 mm
Dimen-
sion (e)
70 mm 70 mm

Installation 5
0020244339_01 eloSTOR plus, eloSTOR exclusive Installation and maintenance instructions 7
5L O 5L U
Dimen-
sion (f)
218 mm 218 mm
Dimen-
sion (g)
232 mm 232 mm
Dimen-
sion (h)
335 mm 104 mm
4.3 Wall-mounting the product
1. Drill the holes in the wall for the rawl plugs.
Applicability: Installation above the work surface
A
B
▶Use the appropriate fixing material to secure the
product to the wall as shown in the illustration.
Applicability: Installation below the work surface
A
B
▶Use the appropriate fixing material to secure the
product to the wall as shown in the illustration.
Conditions: The load-bearing capacity of the wall is sufficient, The
fixing material may be used for the wall
▶Wall-mount the product as described.
Conditions: The load-bearing capacity of the wall is not sufficient
▶Ensure that wall-mounting apparatus on-site has a
sufficient load-bearing capacity. Use individual stands
or primary walling, for example.
▶Do not wall-mount the product if you cannot provide
wall-mounting apparatus with a sufficient load-bearing
capacity.
5 Installation
Danger!
Risk of scalding and/or risk of material
damage due to incorrect installation lead-
ing to escaping water.
Stresses in supply lines can cause leaks.
▶Install the supply lines without tension.
5.1 Establishing the water connection
Applicability: Installation above the work surface
1
2
3
4
1 Cold water inlet
2 Hot water flow
3 Cold water inlet
4 Power supply
▶Check the water pressure.
◁The water pressure is, at most, as great as the
max. permissible pressure.
–Water pressure: ≤0.5 MPa (≤5.0 bar)
▽If the water pressure is greater than the max. per-
missible pressure, install a domestic pressure reg-
ulator.

5 Installation
8Installation and maintenance instructions eloSTOR plus, eloSTOR exclusive 0020244339_01
Applicability: Installation below the work surface
12
3
4
1 Cold water inlet
2 Hot water flow
3 Cold water inlet
4 Power supply
▶Check the water pressure.
◁The water pressure is, at most, as great as the
max. permissible pressure.
–Water pressure: ≤0.5 MPa (≤5.0 bar)
▽If the water pressure is greater than the max. per-
missible pressure, install a domestic pressure reg-
ulator.
1. Install the restrictor element.
◁The water flow rate is, at most, as great as the per-
missible pressure.
– ≤ 5 l/min
1
2
2. Connect the product to the low-pressure fitting.
–Tightening torque: ≤25 Nm (≤18.4 ft⋅lbf)
5.2 Filling the product
1. Open the cold water stop cock.
2. Fill the domestic hot water cylinder.
◁Always fill the direct electric domestic hot water cyl-
inder with water before you switch it on. The cylinder
is full when water escapes as you open the hot wa-
ter tap.
3. Keep the low-pressure fitting's outlet clear.
◁Do not connect any hoses or aerators to the fitting.
Applicability: eloSTOR plus
◁When the direct electric domestic hot water cyl-
inder is heating up, hot water may leak out of the
tap as a result of thermal expansion.
5.3 Electrical installation
Danger!
Risk of death from electric shock!
Touching live connections may cause serious
personal injury.
▶Disconnect the product from the power
supply by interrupting all power supply
sources.
▶Ensure that the product is disconnected
from the power supply.
▶Secure all of the supply lines and con-
nections in order to prevent the product
from being accidentally reconnected to
the power supply.
Danger!
Risk of material damage.
If you do not follow the installation steps, this
may result in damage to the product.
▶Do not connect the product to the power
mains until the direct electric domestic hot
water cylinder is filled with water.
1. Before the electrical installation, check whether local
mains voltage matches the specifications on the pro-
duct's identification plate.
TR
S
T
B
1
2
3
4
56
1 Mains connection line
with mains plug
2 Control light
3 Temperature control
4 Earth connection
5 Overheating protection
6 Heating coil
2. Plug the mains plug into an earthed socket outlet.
◁The plug socket must be freely accessible at all
times.

Start-up 6
0020244339_01 eloSTOR plus, eloSTOR exclusive Installation and maintenance instructions 9
6 Start-up
6.1 Setting the hot water temperature
1
2
3
4
5
6
1 Temperature selector
knob
2 Setting ring for the
temperature
3 Adjustment spindle
4 Notch for the setting at
85 °C
5 Notch for the setting at
40 °C
6 Notch for the setting at
60 °C
Warning.
Risk of being scalded by hot water
There is a risk of scalding at the hot water
draw-off points if the temperatures are
greater than 60 °C. Young children and
elderly persons are particularly at risk, even
at lower temperatures.
▶Select the hot water temperature so that
nobody is at risk.
1. Select a moderate set target temperature.
◁You can set the set target temperature to either
40 °C, 60 °C or 85 °C.
2. Remove the temperature selection knob (1).
3. Remove the adjusting ring (2) for the temperature se-
lection knob.
Conditions: Limiting the temperature to 40 °C
▶Slide the recess (5) for the setting ring onto the nose of
the temperature selection knob.
Conditions: Limiting the temperature to 60 °C
▶Slide the recess (6) for the setting ring onto the lug of
the temperature selection knob.
Conditions: Limiting the temperature to 85 °C (factory setting)
▶Slide the recess (4) for the setting ring onto the nose of
the temperature selection knob.
4. Fit the temperature selector knob with the setting ring
onto the adjusting spindle (3).
6.2 Switching on
1. Ensure that the direct electric domestic hot water cylin-
der has been filled.
2. Insert the mains plug into the wall socket.
3. Set the temperature selector knob to (E).
◁The indicator light lights up. It goes out as soon as
the set target temperature is reached.
6.3 Handing the product over to the operator
Explain to the operator how the safety devices work and
where they are located.
Inform the operator how to handle the product. Answer any
questions the operator may have. In particular, draw atten-
tion to the safety information which the operator must follow.
Inform the operator of the necessity to have the product
maintained according to the specified intervals.
Pass all of the instructions and documentation for the
product to the operator for safe-keeping.
7 Troubleshooting
7.1 Contacting your service partner
If you contact your service partner, you should, where pos-
sible, specify the type of fault that has occurred.
7.2 Procuring spare parts
The original components of the product were also certified
by the manufacturer as part of the declaration of conformity.
If you use other, non-certified or unauthorised parts during
maintenance or repair work, this may void the conformity of
the product and it will therefore no longer comply with the
applicable standards.
We strongly recommend that you use original spare parts
from the manufacturer as this guarantees fault-free and safe
operation of the product. To receive information about the
available original spare parts, contact the contact address
provided on the reverse of these instructions.
▶If you require spare parts for maintenance or repair
work, use only the spare parts that are permitted for the
product.

8 Inspection and maintenance
10 Installation and maintenance instructions eloSTOR plus, eloSTOR exclusive 0020244339_01
8 Inspection and maintenance
8.1 Observing inspection and maintenance
intervals
Proper regular inspections (once a year) and maintenance
(depending on the result of the inspection, but at least once
every two years) combined with the exclusive use of genuine
spare parts are decisive factors in ensuring smooth opera-
tion and long working life for the product.
We recommend taking out an inspection or maintenance
contract.
Inspection
The inspection is intended to determine the actual condition
of a product and compare it with the target condition. This is
done by measuring, checking and observing.
Maintenance
Maintenance is required in order to eliminate any deviations
of the actual condition from the target condition. This is nor-
mally done by cleaning, setting and, if necessary, replacing
individual components that are subject to wear.
8.2 Replacing the power supply cable
Note
To avoid danger, if the power supply cable is
damaged, it must be replaced by the manufac-
turer, their responsible customer service depart-
ment or suitably qualified persons.
▶Replace it in accordance with the recommendations for
the power supply connection.
8.3 Removing/installing the product casing
C
B
A
1. Undo the screw (A) between the hydraulic connections.
2. Remove the temperature selector knob (B).
3. Remove the front casing (C).
4. When fitting the casing, carry out the steps described
above in reverse.
8.4 Descaling the direct electric domestic hot
water cylinder and electrical immersion
heater
1. Check whether the inner vessel in the direct electric
domestic hot water cylinder has any depositions.
◁Clean the vessel mechanically if it contains depos-
itions.
2. Remove the electrical immersion heater.
3. Check the condition of the electrical immersion heater.
◁If required, dip the electrical immersion heater as
far as the flange into a descaling agent in order to
descale it.
8.5 Cleaning the cold-water filter
Applicability: eloSTOR exclusive
1
1. Visually inspect the cold-water filter (1) in the cold water
connection for dirt and scale.
◁If there is dirt or scale deposition, remove the cold-
water filter to clean it.
2. Put the cold-water filter back into its mount.
3. Connect the product to the cold water inlet.
8.6 Replacing the control and/or safety cut-out
1. Disconnect the product from the power mains and make
sure that it cannot be switched back on again.
2. Remove the product casing.
3. Check the condition of the temperature control.
◁Replace the temperature control when it is out of
operation.
4. Check the condition of the temperature cut-out.
◁Replace the temperature cut-out when it is out of
operation.
5. Install the product casing.
6. Connect the product to the power supply.

Decommissioning 9
0020244339_01 eloSTOR plus, eloSTOR exclusive Installation and maintenance instructions 11
9 Decommissioning
9.1 Decommissioning the product
▶Disconnect the product from the power mains.
▶Close the cold water stop valve.
▶Close the domestic hot water stopcock.
▶Remove the water connections.
▶Drain the product.
10 Customer service
10.1 Customer service
Applicability: Austria, Vaillant
Vaillant Group Austria GmbH
Clemens-Holzmeister-Straße 6
1100 Wien
Österreich
E-Mail Kundendienst: [email protected]
Internet Kundendienst: http://www.vaillant.at/werkskunden-
dienst/
Telefon: 05 7050‑2100 (zum Regionaltarif österreichweit, bei
Anrufen aus dem Mobilfunknetz ggf. abweichende Tarife -
nähere Information erhalten Sie bei Ihrem Mobilnetzbetrei-
ber)
Der flächendeckende Kundendienst für ganz Österreich ist
täglich von 0 bis 24 Uhr erreichbar. Vaillant Kundendienst-
techniker sind 365 Tage für Sie unterwegs, sonn- und feier-
tags, österreichweit.
Applicability: Germany, Vaillant
Auftragsannahme Vaillant Kundendienst: 021 91 5767901

Appendix
12 Installation and maintenance instructions eloSTOR plus, eloSTOR exclusive 0020244339_01
Appendix
A Technical data
Technical data –General
VEN 5/7-5 O VEN 5/7-5 U VEN 5/7-7 U VEN 5/7-7 U S1
Product type Direct electric do-
mestic hot water cyl-
inder with system for
supplying a draw-off
point.
Direct electric do-
mestic hot water cyl-
inder with system for
supplying a draw-off
point.
Direct electric do-
mestic hot water cyl-
inder with system for
supplying a draw-off
point.
Direct electric do-
mestic hot water cyl-
inder with system for
supplying a draw-off
point.
Type of installation Setting up above the
work surface
Setting up below the
work surface
Setting up below the
work surface
Setting up below the
work surface
Inside of the cylinder Plastic Plastic Plastic Plastic
Operating mode Single-circuit unit Single-circuit unit Single-circuit unit Single-circuit unit
Recommended tap fitting Available from the
unit supplier
Available from the
unit supplier
Available from the
unit supplier
Available from the
unit supplier
Nominal capacity 5 l 5 l 5 l 5 l
Maximum temperature at the out-
let
80 ℃80 ℃80 ℃80 ℃
Energy-saving mode 60 ℃60 ℃60 ℃60 ℃
Temperature limit possible –40 ℃
–60 ℃
–40 ℃
–60 ℃
–40 ℃
–60 ℃
–40 ℃
–60 ℃
Mixed water volume at 40 °C * 9.5 l 9.5 l 9.5 l 9.5 l
Maximum operating pressure 0 MPa
(0 bar)
0 MPa
(0 bar)
0 MPa
(0 bar)
0 MPa
(0 bar)
Product dimensions, width 240 mm 240 mm 240 mm 240 mm
Product dimensions, depth 232 mm 232 mm 232 mm 232 mm
Product dimensions, height 400 mm 400 mm 400 mm 400 mm
Weight when filled with water 8 kg 7.95 kg 7.95 kg 7.95 kg
* The mixed water volume with an operating temperature of 40 °C results from adding cold water to the water in the cylinder,
which has a temperature of 65 °C, when the unit is ready to operate.
Technical data –Electrics
VEN 5/7-5 O VEN 5/7-5 U VEN 5/7-7 U VEN 5/7-7 U S1
Electric connection 230 V / 50 Hz 230 V / 50 Hz 230 V / 50 Hz 230 V / 50 Hz
Energy consumption in standby
mode/24 hours 0.225 kWh 0.218 kWh 0.218 kWh 0.218 kWh
Level of protection IP 24 D IP 24 D IP 24 D IP 24 D
Safety Radio-shielded, does
not affect the mains
supply
Radio-shielded, does
not affect the mains
supply
Radio-shielded, does
not affect the mains
supply
Radio-shielded, does
not affect the mains
supply
Nominal output 2 kW
(2.7 hp)
2 kW
(2.7 hp)
2 kW
(2.7 hp)
1 kW
(1.3 hp)

0020244339_01 05.04.2017
Supplier
Vaillant Deutschland GmbH & Co.KG
Berghauser Str. 40 D-42859 Remscheid
Telefon [phone]‑0 Telefax 021 91 18‑2810
Auftragsannahme Vaillant Kundendienst 021 91 5767901
[email protected] www.vaillant.de
Vaillant Group Austria GmbH
Clemens-Holzmeister-Straße 6 1100 Wien
Telefon 05 7050 Telefax 05 7050‑1199
Telefon 05 7050‑2100 (zum Regionaltarif österreichweit, bei Anrufen aus dem Mobilfunknetz ggf. abweichende
Tarife - nähere Information erhalten Sie bei Ihrem Mobilnetzbetreiber)
[email protected] [e-mail]
www.vaillant.at www.vaillant.at/werkskundendienst/
© These instructions, or parts thereof, are protected by copyright and may be reproduced or distributed only with
the manufacturer's written consent.
We reserve the right to make technical changes.
0020244339_01