Vaillant uniSTOR VIH GB 3 BES Series User manual

en Operating instructions
uniSTOR
VIH GB .../3 BES
0020221762_03 - 08.07.2022

2Operating instructions 0020221762_03
Operating instructions
Contents
1 Safety ............................................ 3
1.1 Intended use .................................. 3
1.2 General safety information............. 3
2 Notes on the documentation ...... 5
2.1 Observing other applicable
documents ..................................... 5
2.2 Storing documents......................... 5
2.3 Validity of the instructions .............. 5
2.4 Benchmark..................................... 5
3 Product description..................... 6
3.1 Serial number ................................ 6
3.2 Information on the data plate ......... 6
3.3 CE marking .................................... 6
3.4 Hot Water Association ................... 6
4 Function........................................ 6
4.1 Setting the domestic hot water
temperature ................................... 6
4.2 Switching off the hot water
generation...................................... 6
5 Troubleshooting .......................... 6
5.1 Detecting and eliminating faults..... 6
6 Care and maintenance ................ 7
6.1 Maintenance .................................. 7
6.2 Caring for the product .................... 7
7 Decommissioning........................ 7
7.1 Temporarily decommissioning
the product..................................... 7
7.2 Permanently decommissioning
the product..................................... 7
8 Recycling and disposal............... 7
9 Guarantee and customer
service .......................................... 7
9.1 Guarantee...................................... 7
9.2 Customer service........................... 8
Appendix ................................................. 9
A Troubleshooting .......................... 9
Index ...................................................... 10

0020221762_03 Operating instructions 3
1 Safety
1.1 Intended use
There is a risk of injury or death
to the user or others, or of dam-
age to the product and other
property in the event of im-
proper use or use for which it
is not intended.
The product is intended as a
system component for domestic
hot water generation and stor-
age for closed central heating
installations.
Intended use includes the fol-
lowing:
–observance of the operating
instructions included for the
product and any other install-
ation components
–compliance with all inspection
and maintenance conditions
listed in the instructions.
This product can be used by
children aged from 8 years
and above and persons with
reduced physical, sensory or
mental capabilities or lack of
experience and knowledge if
they have been given supervi-
sion or instruction concerning
use of the product in a safe way
and understand the hazards in-
volved. 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 spe-
cified in these instructions, or
use beyond that specified in this
document, shall be considered
improper use. Any direct com-
mercial 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 Installation by skilled
tradesmen only
The installation, inspection,
maintenance and repair of the
product, as well as the gas ratio
settings, must only be carried
out by a competent person.
1.2.2 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 ap-
plicable documents, particu-
larly the "Safety" section and
the warnings.
▶Only carry out the activities
for which instructions are
provided in these operating
instructions.

4Operating instructions 0020221762_03
1.2.3 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 tamper-proof seals on
components.
▶Do not make any changes:
–The product itself
–The water and electricity
supply lines
–to the expansion relief valve
–to the drain pipework
–to constructional condi-
tions that may affect the
operational reliability of the
product
1.2.4 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 eliminated by a
competent person.
▶Adhere to the maintenance
intervals specified.
1.2.5 Risk of burns or scalding
caused by hot parts
Parts of the product become hot
during operation.
▶Only touch the product and its
parts once these have cooled
down.
1.2.6 Risk of material damage
caused by frost
▶Ensure that the heating in-
stallation always remains in
operation during freezing con-
ditions and that all rooms are
sufficiently heated.
▶If you cannot ensure the oper-
ation, have a competent per-
son drain the heating installa-
tion.

0020221762_03 Operating instructions 5
2 Notes on the
documentation
2.1 Observing other applicable
documents
▶Always observe all operating instruc-
tions enclosed with the installation com-
ponents.
2.2 Storing documents
▶Store these instructions and all other
applicable documents for further use.
2.3 Validity of the instructions
These instructions apply only to:
Product article number
Validity: Not Pre-plumbed
VIH GB 120/3
BES
0010019215
VIH GB 150/3
BES
0010019216
VIH GB 180/3
BES
0010019217
VIH GB 200/3
BES
0010019218
VIH GB 250/3
BES
0010019219
VIH GB 300/3
BES
0010019220
Product article number
Validity: Pre-plumbed
VIH GB 120/3
BES
0010019209
VIH GB 150/3
BES
0010019210
VIH GB 180/3
BES
0010019211
VIH GB 200/3
BES
0010019212
VIH GB 250/3
BES
0010019213
VIH GB 300/3
BES
0010019214
2.4 Benchmark
Vaillant is a licensed member of the
Benchmark Scheme which aims to im-
prove the standards of installation and
commissioning of domestic heating and
hot water systems in the UK and to en-
courage regular servicing to optimise
safety, efficiency and performance.
Benchmark is managed and promoted
by the Heating and Hotwater Industry
Council. For more information visit
www.benchmark.org.uk.
▶Please ensure that the installer has fully
completed the Benchmark Checklist on
the inside back pages of the installation
instructions supplied with the product
and that you have signed it to say that
you have received a full and clear ex-
planation of its operation. The installer
is legally required to complete a com-
missioning checklist as a means of
complying with the appropriate Build-
ing Regulations (England and Wales).
All installations must be notified to Local
Area Building Control either directly or
through a Competent Persons Scheme.
A Building Regulations Compliance Certi-
ficate will then be issued to the customer
who should, on receipt, write the Notifica-
tion Number on the Benchmark Checklist.
This product should be serviced regularly
to optimise its safety, efficiency and per-
formance. The service engineer should
complete the relevant Service Record on
the Benchmark Checklist after each ser-
vice.
The Benchmark Checklist will be required
in the event of any warranty.

6Operating instructions 0020221762_03
3 Product description
3.1 Serial number
1
You can find the serial number on the data
plate (1), which is located on the cylinder
below the electronics box.
3.2 Information on the data plate
The data plate is attached to the product at
the factory.
The data plate keeps record of the country
in which the product is to be installed.
This product meets the requirements of
standard EN 12897:2016.
3.3 CE marking
The CE marking shows that the products
comply with the basic requirements of the
applicable directives as stated on the de-
claration of conformity.
The declaration of conformity can be
viewed at the manufacturer's site.
3.4 Hot Water Association
Vaillant is a full member of the Hot Water
Association and promotes the scheme
in association with its cylinder range.
Details are available on the web site
www.vaillant.co.uk
4 Function
4.1 Setting the domestic hot water
temperature
Condition: With control
▶Observe the instructions for the control.
Depending on the control, you can set
the domestic hot water temperature on
the control.
Condition: Without control
▶Consult your competent person to ad-
just the domestic hot water temperature
on the cylinder.
4.2 Switching off the hot water
generation
▶Switch off the heat generator or the hot
water generation at the heat generator
or at the controller.
5 Troubleshooting
5.1 Detecting and eliminating
faults
▶If problems occur whilst operating the
product, you can carry out certain self-
checks with the aid of the table in the
appendix.

0020221762_03 Operating instructions 7
Troubleshooting (→Page 9)
▶If the product is not functioning cor-
rectly, even though you have checked
the points listed in the table, con-
tact a competent person to carry out
troubleshooting.
6 Care and maintenance
6.1 Maintenance
An annual inspection of the product carried
out by a competent person is a prerequis-
ite for ensuring that the product is perman-
ently ready and safe for operation, reliable,
and has a long working life.
6.2 Caring for the product
▶Clean the casing with a damp cloth and
a little solvent-free soap.
▶Do not use sprays, scouring agents,
detergents, solvents or cleaning agents
that contain chlorine.
7 Decommissioning
7.1 Temporarily decommissioning
the product
▶Temporarily decommission the product
only if there is no risk of frost.
▶Switch off the heat generator or the hot
water generation at the heat generator
or at the controller.
7.2 Permanently decommissioning
the product
▶Employ a competent person to perman-
ently decommission the product.
8 Recycling and disposal
▶The competent person who installed
your product is responsible for the dis-
posal of the packaging.
Disposing of the product
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 collec-
tion centre for waste electrical or elec-
tronic equipment.
Disposing of batteries
If the product contains batteries that
are labelled with this mark:
▶In this case, dispose of the batteries at
a collection point for batteries.
◁Prerequisite: The batteries can be
removed from the product without
causing any destruction. Otherwise,
the batteries are disposed of to-
gether with the product.
▶In accordance with the legal regula-
tions, used batteries must be returned
since batteries may contain substances
that are harmful to health and the envir-
onment.
9 Guarantee and customer
service
9.1 Guarantee
Vaillant provide a full parts and labour
guarantee for this appliance - please see
guarantee card for details.
The appliances must be installed in ac-
cordance with The Water Regulations of:
–England and Wales: Water (supply and
fittings) Regulations 1999 within Eng-
land and Wales
–Scotland: The Water Byelaws

8Operating instructions 0020221762_03
–Eire: Compliance with IS standards and
Local Council regulations
Compliance with the Building regulations:
–England and Wales
–Scotland
–Northern Ireland
–Eire
Terms and conditions apply to the guaran-
tee, details of which can be found on the
guarantee registration card included with
this appliance.
Failure to install and commission this ap-
pliance in compliance with the manufac-
turer’s instructions will invalidate the guar-
antee (this does not affect the customer’s
statutory rights).
9.2 Customer service
For contact details for our customer ser-
vice department, you can write to the ad-
dress that is provided on the back page, or
you can visit www.vaillant.co.uk.

0020221762_03 Operating instructions 9
Appendix
A Troubleshooting
Fault Solution
Leak at the product If possible, catch
the liquid in a vessel
and inform a com-
petent person.
A fault code ap-
pears on the con-
troller.
Inform a competent
person.
Hot water temperat-
ure too low.
Check the hot water
temperature setting
on the controller
and check whether
the heat generator
has been switched
on. If the problem
persists, inform a
competent person.
Leak at the expan-
sion relief valve.
Inform a competent
person.

10 Operating instructions 0020221762_03
Index
A
Article number .......................................... 6
B
Battery ...................................................... 7
C
CE marking............................................... 6
D
Data plate ................................................. 6
Decommissioning .................................... 7
Permanently ......................................... 7
Disposal.................................................... 7
Documents ............................................... 5
F
Frost ......................................................... 4
I
Intended use............................................. 3
Isolator devices ........................................ 7
M
Maintenance......................................... 4, 7
P
Product
Permanently decommissioning ............ 7
R
Recycling.................................................. 7
Repair....................................................... 4
S
Serial number ........................................... 6
Setting the cylinder temperature .............. 6
Switching off ............................................. 7
T
Troubleshooting........................................ 6