Vaillant flexoTHERM exclusive VWF 57/4 User manual

en Operating instructions
flexoTHERM exclusive
VWF 57 - 197/4, VWF 57 - 117/4 230V
0020213396_05 - 16.01.2023

2Operating instructions 0020213396_05
Operating instructions
Contents
1 Safety ............................................ 3
1.1 Intended use .................................. 3
1.2 General safety information............. 3
2 Notes on the documentation ...... 6
2.1 Observing other applicable
documents ..................................... 6
2.2 Storing documents......................... 6
2.3 Validity of the instructions .............. 6
3 System overview.......................... 6
3.1 Heat pump system design ............. 6
3.2 Display of the energy
consumption, energy yields and
efficiencies ..................................... 7
4 Product description..................... 7
4.1 Product design............................... 7
4.2 Serial number ................................ 7
4.3 Opening the front flap .................... 7
4.4 CE marking .................................... 8
4.5 Safety devices ............................... 8
5 Operation...................................... 9
5.1 Control panel ................................. 9
5.2 Operating concept ....................... 10
5.3 Basic display................................ 10
5.4 Menu display................................ 11
5.5 Operating levels........................... 11
5.6 Starting up the product ................ 11
5.7 Switching on the product ............. 11
5.8 Adjusting the target cylinder
temperature ................................. 11
5.9 Yield indicator .............................. 11
5.10 Displaying the Live Monitor.......... 12
5.11 Displaying the building circuit
pressure....................................... 12
5.12 Displaying the environment
circuit pressure ............................ 12
5.13 Reading the operating
statistics ....................................... 12
5.14 Setting the language.................... 12
6 Troubleshooting ........................ 12
7 Care and maintenance .............. 13
7.1 Fulfilling requirements for the
installation site ............................. 13
7.2 Caring for the product .................. 13
7.3 Reading maintenance
messages .................................... 13
7.4 Checking the system pressure .... 13
7.5 Checking the brine circuit's
filling pressure.............................. 13
8 Decommissioning...................... 14
8.1 Temporarily decommissioning
the product................................... 14
8.2 Protecting the product against
frost.............................................. 14
8.3 Permanently decommissioning
the product................................... 14
9 Recycling and disposal............. 14
9.1 Arranging disposal of the brine
fluid .............................................. 14
9.2 Arranging disposal of
refrigerant .................................... 14
10 Guarantee and customer
service ........................................ 14
10.1 Guarantee.................................... 14
10.2 Customer service......................... 15
Appendix ............................................... 16
A Overview of the end user
level............................................. 16

0020213396_05 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 heat pump system is in-
tended exclusively for domestic
use.
The heat pump system is in-
tended as a heat generator
with cooling function for closed
heating installations and for do-
mestic hot water generation.
Operating the pump outside
the application limits results in
the heat pump being switched
off by the internal control and
safety devices.
Cooling mode with radiator
heating systems is not permit-
ted since radiators do not have
an adequate heat transfer sur-
face area.
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 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-

4Operating instructions 0020213396_05
larly the "Safety" section and
the warnings.
▶Only carry out the activities
for which instructions are
provided in these operating
instructions.
1.2.2 Risk of death due to
explosive and flammable
materials
▶Do not use the product in
storage rooms that contain
explosive or flammable sub-
stances (such as petrol, pa-
per or paint).
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. Only authorised
competent persons or cus-
tomer services may modify
sealed components.
▶Do not make any changes:
–The product itself
–The product environment
–The brine fluid, air and elec-
tricity supply lines
–The drain pipework and
expansion relief valve for
the heat source circuit
–to constructional condi-
tions that may affect the
operational reliability of the
product
1.2.4 Risk of chemical burns
caused by brine fluid
The brine fluid ethylene glycol is
harmful to health.
▶Avoid contact with the skin
and eyes.
▶Always wear gloves and pro-
tective goggles.
▶Do not inhale or swallow.
▶Observe the safety data sheet
that accompanies the brine
fluid.
1.2.5 Risk of injury
from freezing caused
by touching refrigerant
The product is delivered with
an operational filling of R410A
refrigerant. Escaping refrigerant
may cause freezing if the exit
point is touched.
▶If refrigerant escapes, do not
touch any components of the
product.
▶Do not inhale any vapours or
gases that escape from the
refrigerant circuit as a result
of leaks.
▶Avoid skin or eye contact with
the refrigerant.
▶In the event of skin or eye
contact with the refrigerant,
seek medical advice.

0020213396_05 Operating instructions 5
1.2.6 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.
1.2.7 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.
1.2.8 Risk of environmental
damage caused by
refrigerant
The product contains a refriger-
ant that must not be allowed to
escape into the atmosphere.
▶Ensure that a competent per-
son who is qualified to work
with refrigerants services the
product and, after decommis-
sioning, recycles or disposes
of it.
1.2.9 Avoid environmental
damage caused by
escaping refrigerant
The product contains the refri-
gerant R410A. The refrigerant
must not be allowed to escape
into the atmosphere. R410A is
a fluorinated greenhouse gas
covered by the Kyoto Protocol,
with a GWP of 2088 (GWP =
Global Warming Potential). If
this gas escapes into the atmo-
sphere, its impact is 2088 times
greater than the natural green-
house gas CO2.
Before the product is disposed
of, the refrigerant that is con-
tained in it must be completely
drained into a suitable vessel so
that it can then be recycled or
disposed of in accordance with
regulations.
▶Ensure that only officially cer-
tified competent persons with
appropriate protective equip-
ment carry out maintenance
work on the refrigerant circuit
or access it.
▶Arrange for the refrigerant
contained in the product to
be recycled or disposed of by
certified competent persons in
accordance with regulations.

6Operating instructions 0020213396_05
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:
Validity: Great Britain OR Ireland
Product
VWF 57/4
VWF 87/4
VWF 117/4
VWF 157/4
VWF 197/4
Validity: Great Britain OR Ireland
Product
VWF 57/4 230 V
VWF 87/4 230 V
VWF 117/4 230 V
3 System overview
3.1 Heat pump system design
A
B
A
B
3 1 2
4
1
2
5 1 2
The heat pump system consists of the
following components:
–Heat pump (1)
–System control (2) (from VRC 700)
–Outdoor temperature sensor with DCF
receiver
–System sensor, if required
–With ground heat source: Ground col-
lector (3)
–With air heat source (only products with
400 V): Air/brine collector(s) (4)

0020213396_05 Operating instructions 7
–With well water heat source: Ground
water module (5)
There is an opportunity for active cooling
to take place via circulation reversal for
the heat sources air, ground and ground
water.
Note
Approval from the water authorities
is required for operation with active
cooling using ground water as the
heat source.
3.2 Display of the energy
consumption, energy yields
and efficiencies
The product, the system control and the
app show approximate values for energy
consumption, energy yields and efficien-
cies, which are extrapolated based on cal-
culation algorithms.
The values that are displayed in the app
may differ from the other display options
due to staggered transfer intervals.
The determined values depend on:
–Installation and system of the heating
installation
–User behaviour
–Seasonal weather effects
–Various tolerances of unit-internal com-
ponents
The recording of the values only includes
the product in the factory-delivered condi-
tion. Supplementary accessories, even if
they are installed on the product, as well
as any other components in the heating
system and other external consumers, are
not part of the data recording.
Deviations between the determined values
and the actual values may be significant.
The determined values are therefore not
suitable for creating or comparing energy
billing, for example.
When replacing the PCB, the values for
energy consumption, energy yields and
efficiencies are reset in the heat pump's
control panel.
4 Product description
4.1 Product design
1
2
3
4
1 Front flap
2 Recessed
handle
3 Control elements
4 Plate showing
the serial num-
ber
The product contains fluorinated green-
house gases in a hermetically sealed
device.
4.2 Serial number
The serial number is located on a plate be-
hind the front flap. The 7th to 16th digits of
the serial number form the article number.
4.3 Opening the front flap
1. Take hold of the recessed handle in
the front flap on the left- or right-hand
side.
2. Pull the recessed handle.

8Operating instructions 0020213396_05
4.4 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.
4.5 Safety devices
4.5.1 Frost protection function
The frost protection function for the system
is controlled via the system control. If the
system control fails, the heat pump guar-
antees limited frost protection for the heat-
ing circuit.
4.5.2 Protection against low heating
water pressure
This function continuously monitors the
pressure of the heating water in order to
prevent a possible loss of heating water.
4.5.3 Brine pressure detector
The brine pressure detector continuously
monitors the fluid pressure in the environ-
ment circuit in order to prevent a possible
shortage of fluid.
4.5.4 Freeze protection
This function prevents the evaporator from
freezing when the heat source temperat-
ure drops below a certain value.
The outlet temperature of the heat source
is constantly measured. If the outlet tem-
perature of the heat source falls below a
certain value, the compressor temporar-
ily switches off and displays a status mes-
sage. If this fault occurs three times in a
row, it is switched off and a fault message
is displayed.
4.5.5 Pump- and valve-blocking
protection system
This function prevents the pumps for heat-
ing water and brine and all diverter valves
from sticking. The pumps and the valves,
which were out of operation for 23 hours,
are switched on for 10 - 20 seconds, one
after the other.
4.5.6 High-pressure pressure switch
in the refrigerant circuit
The high-pressure pressure switch shuts
down the heat pump if the pressure in the
refrigerant circuit is too high. Following a
waiting period, the heat pump attempts
to start once more. After three failed start
attempts in succession, a fault message is
displayed.
–Max. refrigerant circuit pressure:
4.60 MPa (g) (46.00 bar (g))
–Waiting period: 5 minutes (after the first
occurrence)
–Waiting period: 30 minutes
(after the second and every further oc-
currence)
The fault counter is reset if both of the
following conditions are met:
–Heat requirement without switching off
prematurely
–60 minutes of uninterrupted operation
4.5.7 Hot gas thermostat in the
refrigerant circuit
The hot gas thermostat shuts down the
heat pump if the temperature in the re-
frigerant circuit is too high. Following a
waiting period, the heat pump attempts
to start once more. After three failed start
attempts in succession, a fault message is
displayed.
–Max. refrigerant circuit temperature:
135 ℃
–Waiting period: 5 minutes (after the first
occurrence)
–Waiting period: 30 minutes

0020213396_05 Operating instructions 9
(after the second and every further oc-
currence)
The fault counter is reset if both of the
following conditions are met:
–Heat requirement without switching off
prematurely
–60 minutes of uninterrupted operation
4.5.8 Safety cut-out (SCO) in the
heating circuit
If the temperature in the heating circuit
of the internal electric back-up heater
exceeds the maximum temperature, the
safety cut-out shuts down the electric
back-up heater as a securing measure.
Following a waiting period, another at-
tempt is made to start the electric back-up
heater. A fault message is displayed that
can only be reset by pressing the Reset
button or by switching the heat pump off
and on again.
–Max. heating circuit temperature: 85 ℃
5 Operation
5.1 Control panel
50 d
kWh
reset
1
2
3
4
6
7
8
9
5
1 Displays the
daily environ-
mental energy
yield
2 Display of the
current assign-
ment of the right-
hand selection
button
3 Left- and right-
hand selection
buttons
4 and but-
ton
5 Reset button
(restarts the heat
pump and sys-
tem control)
6 Access to the
menu for addi-
tional information
(press both se-
lection buttons at
the same time)
7 Display of the
current configur-
ation of the left-
hand selection
button
8 Displays the
symbols for the
current operating
mode of the heat
pump
9 Display

10 Operating instructions 0020213396_05
5.2 Operating concept
Control
element
Function
–Displaying the environmental
energy yield in heating mode,
domestic hot water mode and
cooling mode
–Cancelling a change to a set
value
–Going one selection level
higher
–Confirm the set value
–Going one selection level lower
+
at the
same
time
–Calling up the menu
or –Reducing or increasing the set
value
–Scrolling through menu entries
The current function of the and se-
lection buttons is shown on the display.
Adjustable values are always displayed as
flashing.
You must always confirm a change to a
value. Only then is the new setting saved.
You can press to cancel a procedure.
5.3 Basic display
50 d
kWh
Sym-
bol
Meaning Explanation
Compressor –Filled: Com-
pressor in op-
eration
–Not filled:
Compressor
not in
operation
Sym-
bol
Meaning Explanation
bar
Current filling
pressure of the
heating system
The dashed lines
show the permit-
ted range.
–Permanently
on: Filling
pressure in
the permitted
range.
–Flashing:
Filling pres-
sure outside
the permitted
range.
Pumps –Left continu-
ously on: Brine
pump in oper-
ation
–Right con-
tinuously on:
Heating pump
in operation
Auxiliary electric
heating
–Flashing: Aux-
iliary electric
heating in op-
eration
–+ : Aux-
iliary electric
heating act-
ive for heating
mode
–+ : Aux-
iliary electric
heating active
for hot water
handling mode
Green iQ mode –Product
equipped with
energy-saving
technology
Heating mode –Continuously
on: Heating
mode active
Cooling mode –Continuously
on: Cooling
mode active
(active or
passive)
Hot water gener-
ation
–Continuously
on: Hot water
handling mode
active

0020213396_05 Operating instructions 11
Sym-
bol
Meaning Explanation
F. X X X
Fault in the
product
–Appears in-
stead of the
basic display,
may be an ex-
planatory plain
text display
The basic display shows you the product's
operating mode. If you press a selection
button, the activated function is displayed
in the display.
You can switch back to the basic display
by:
–Pressing to exit the selection levels
–Or not pressing any button for longer
than 15 minutes.
If there is an error message present, the
basic displays switches to the error mes-
sage.
5.4 Menu display
Xxxx
Xxxxxxxxxxx
Xxxx Xxxxxxx
Xxxxxxxxxx
xxxxxx Xxxxxxx
1
4
3
2
1 Scroll bar
2 Current assign-
ment of the se-
lection buttons
3 Selection level
list entries
4 Selection level
You can find an overview of the menu
structure in the appendix.
5.5 Operating levels
The product has two operating levels.
The operating level for the end user shows
the information and offers setting options
that do not require any special prior know-
ledge.
The operating level for the competent per-
son is protected by a code.
Overview of the end user level
(→Appendix A)
5.6 Starting up the product
▶Only start up the product once the cas-
ing has been completely closed.
5.7 Switching on the product
▶Use the partition that is installed on-site
(e.g. fuses or power switches) to switch
on the product.
5.8 Adjusting the target cylinder
temperature
In order to achieve energy-efficient do-
mestic hot water generation predominantly
from the energy extracted from the envir-
onment, the factory setting for the desired
domestic hot water temperature must be
adjusted on the system control.
▶To do this, adjust the target cylinder
temperatures (Desired DHW circuit
temperature) to between 50 and 55 °C,
for example.
◁Depending on the source of energy
obtained from the environment, do-
mestic hot water outlet temperat-
ures of between 55 and 62 °C are
reached.
Note
Make sure your installation's
anti-legionella function is work-
ing correctly. If you decrease the
cylinder temperature, the risk of
legionella spreading increases.
Activate the anti-legionella time
programme in the system con-
trol and configure the settings.
5.9 Yield indicator
Displays the environmental energy yield as
a cumulative value for a time period of a
day, a month and the total for the heating,
domestic hot water generation and cooling
operating modes.
Displays the working figure for a time
period of a month and the total for the
heating and domestic hot water generation
operating modes. The working figure is

12 Operating instructions 0020213396_05
the ratio of thermal energy generated
to the operating current used. Monthly
values may vary considerably since, for
example, in the summer only domestic
hot water generation is used. A large
number of factors influence this estimate,
e.g. the type of heating installation (direct
heating mode = low flow temperature or
indirect heating mode via buffer cylinder
= high flow temperature). This figure may
therefore deviate by up to 20%.
The working figures only record the power
consumption of internal components, not
of external components such as external
heating circuit pumps, valves, etc.
5.10 Displaying the Live Monitor
Menu →Live Monitor
You can use the Live Monitor to view the
current status of the product.
5.11 Displaying the building circuit
pressure
Menu →Live Monitor→Building circuit
pressure
You can use this function to display the
current filling pressure in the heating in-
stallation.
5.12 Displaying the environment
circuit pressure
Menu →Live Monitor→Environment
circuit pressure
You can use this function to display the
current filling pressure in the environment
circuit.
5.13 Reading the operating
statistics
Menu →Information →Heating op.
hours
Menu →Information →DHW operating
hours
Menu →Information →Cooling op.
hours
Menu →Information →Total operating
hours
You can use this function to display the
operating hours for heating mode, for do-
mestic hot water mode, for cooling mode
and for overall operation.
5.14 Setting the language
Menu →Default settings →Language
You can use this function to set the de-
sired language.
6 Troubleshooting
Note
If the heat pump has switched off
automatically due to a fault, the
system control can be used to ac-
tivate a limp home mode with the
electric back-up heater.
If several faults occur at the same time,
the display shows the corresponding fault
messages for two seconds each in alterna-
tion.
F.714 Environment circuit: Pressure too
low
If the filling pressure falls below the min-
imum pressure, the heat pump will be
switched off automatically.
–Minimum brine fluid pressure:
≥0.05 MPa (≥0.50 bar)
–Min. brine fluid operating pressure:
≥0.07 MPa (≥0.70 bar)
▶Inform your competent person so that
he can top up the brine fluid.
F.723 Building circuit: Pressure too low
If the filling pressure falls below the min-
imum pressure, the heat pump will be
switched off automatically.
–Min. heating circuit pressure:
≥0.05 MPa (≥0.50 bar)
–Min. heating circuit operating pressure:
≥0.07 MPa (≥0.70 bar)

0020213396_05 Operating instructions 13
▶Inform your competent person so that
he can top up the heating water.
F.1120 immersion heater: Phase failure
The product has an internal circuit breaker
which switches off the heat pump in the
event of short circuits or the failure of one
(product with 230 V power supply) or sev-
eral (product with 400 V power supply)
current-carrying phases.
If the electric back-up heater is defective,
the Anti-legionella function is not guaran-
teed.
▶Inform your competent person so that
they can eliminate the fault and reset
the internal circuit breaker.
7 Care and maintenance
7.1 Fulfilling requirements for the
installation site
The installation site must be dry and frost-
proof throughout.
Condition: Outdoor air heat source
The air/brine collector is designed to be
operated with outdoor air. The air intake
and blow-off route of the outdoor unit must
be kept clear at all times in order to guar-
antee that the air can flow unhindered and
as intended. Vegetation and, in winter,
snowfall, must be cleared.
You are not permitted to make any sub-
sequent structural alterations which
may result in a reduced room volume
or a change to the temperature at the
installation site.
7.2 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.
7.3 Reading maintenance
messages
If the symbol is shown in the display,
the product requires maintenance work or
the product is in restricted mode (comfort
protection). The product is not in fault
mode; it continues to operate.
Regardless of maintenance messages
appearing on the display, it is advisable
to have a competent person carry out
an inspection every year and mainten-
ance every two years in order to keep the
product in good working order.
▶Consult a competent person.
Condition:Lhm. 37 is displayed
The product is in Comfort protection mode.
The product has detected a permanent
fault and continues to run with restricted
comfort.
7.4 Checking the system pressure
1. Check the filling pressure of the heat-
ing installation every day for a week
after initial start-up and maintenance
work, and then twice a year.
–Min. heating circuit operating pres-
sure: ≥0.07 MPa (≥0.70 bar)
2. Inform your competent person so
that he can add heating water and in-
crease the filling pressure.
7.5 Checking the brine circuit's
filling pressure
1. Check the brine circuit's filling pres-
sure at regular intervals. Read the
brine circuit's filling pressure in the
heat pump's display.
–Brine fluid operating pressure
range: 0.07 to 0.20 MPa (0.70 to
2.00 bar)
2. Inform your competent person so that
he can add brine and increase the
filling pressure.

14 Operating instructions 0020213396_05
8 Decommissioning
8.1 Temporarily decommissioning
the product
▶Use the partition that is installed on-
site (e.g. fuses or power switches) to
disconnect the product from the power
supply.
8.2 Protecting the product against
frost
▶Observe the requirements for the
installation site for the product.
(→Section 7.1)
8.3 Permanently decommissioning
the product
▶Have a competent person perman-
ently decommission and dispose of the
product.
9 Recycling and disposal
Validity: Great Britain OR Ireland
Disposing of the packaging
▶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.
9.1 Arranging disposal of the brine
fluid
The product is filled with the brine fluid
ethylene glycol, although when using
ground as the heat source, aqueous
solutions of propylene glycol may also be
used as an alternative. Ethylene glycol is
harmful to health.
▶Brine fluid must only be disposed of by
a qualified competent person.
9.2 Arranging disposal of
refrigerant
The product is filled with R410A refrigerant
which must not be released into the atmo-
sphere.
▶Refrigerant must only be disposed of by
a qualified competent person who holds
a refrigerant-handling certificate.
10 Guarantee and customer
service
10.1 Guarantee
Validity: Great Britain OR Ireland
Vaillant provides a full parts and labour
guarantee for this appliance for the dura-
tion as shown on the enclosed registration
card which must be fully completed and
returned within 30 days of installation. All
appliances must be installed by a suitably
competent person fully conversant and
in accordance with all current regulations
applicable to the appliance type installa-
tion. In the case of gas appliances the Gas

0020213396_05 Operating instructions 15
Safety (Installation and Use) Regulations
1998, and the manufacturer’s instructions.
In the UK competent persons approved at
the time by the Health and Safety Execut-
ive undertake the work in compliance with
safe and satisfactory standards. Installers
should also be fully conversant with and
competent with all necessary electrical and
building regulations that may apply to the
installation.
In addition all unvented domestic hot water
cylinders must be installed by a compet-
ent person to the prevailing building regu-
lations at the time of installation (G3). All
appliances shall be fully commissioned in
accordance with our installation manual
and Benchmark commissioning check list
(this will be included within the installa-
tion manual). These must be signed and
given to the user for safe keeping during
the hand over process. Installers should
also at this time advise the user of the an-
nual servicing requirements and advise of
appropriate service agreement.
Terms and conditions do apply to the guar-
antee, details of which can be found on the
registration card included with this appli-
ance. In order to qualify for guarantee after
one year the appliance must be serviced
in accordance with our installation manual
servicing instructions. The benchmark ser-
vice history should be completed. Note -
all costs associated with this service are
excluded from this guarantee.
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).
10.2 Customer service
Validity: Great Britain OR Ireland
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.

16 Operating instructions 0020213396_05
Appendix
A Overview of the end user level
Setting level Values Unit Increment, se-
lect
Factory
setting
Setting
Min. Max.
Yield indicator →
Energy yield: Day,
Heating
Cumulative
value
kWh
Energy yield: Day, Do-
mestic hot water
Cumulative
value
kWh
Energy yield: Day,
Cooling
Cumulative
value
kWh
Energy yield: Month,
Heating
Cumulative
value
kWh
Working figure: Month,
Heating
Cumulative
value
Energy yield: Total,
Heating
Cumulative
value
kWh
Working figure: Total,
Heating
Cumulative
value
Energy yield: Month,
Domestic hot water
Cumulative
value
kWh
Working figure: Month,
Domestic hot water
Cumulative
value
Energy yield: Total,
Domestic hot water
Cumulative
value
kWh
Working figure: Total,
Domestic hot water
Cumulative
value
Live Monitor →
Current status mes-
sage(s)
Current value
Building circuit pres-
sure
Current value bar
Environment circuit
pressure
Current value bar
Switch-on delay Current value min
Target flow temp. Current value ℃
Current flow temp. Current value ℃
Energy integral Current value °min
Environment circuit
inlet temperature
Current value ℃
Environment circuit
outlet temperature
Current value ℃
Cooling capacity Current value kW

0020213396_05 Operating instructions 17
Setting level Values Unit Increment, se-
lect
Factory
setting
Setting
Min. Max.
Electrical power con-
sumption
Current value kW Total power
consumption of
the heat pump
without any ex-
ternal compon-
ents connected
(as supplied).
Immersion heater
power
Current value kW
Information →
Contact details Phone number
Serial number Permanent
value
Operating hours total Cumulative
value
h
Hours heating Cumulative
value
h
DHW operating hours Cumulative
value
h
Cooling op. hours Cumulative
value
h
Default settings →
Language Current lan-
guage
Languages avail-
able for selection
02 English
Display contrast Current value 1 25
15 40
Resets →
Reset anti-cycl. time –Cancel reset
anti-cycl. time?
Yes/No

Supplier
Vaillant Ltd.
Nottingham Road Belper Derbyshire DE56 1JT
Telephone [phone]
[email protected] www.vaillant.co.uk
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Tel. [phone] Fax [phone]
[email protected] www.vaillant.de
© These instructions, or parts thereof, are protected by copyright and may be
reproduced or distributed only with the manufacturer's written consent.
Subject to technical modifications.
0020213396_05