Viessmann VITOTRONIC 200 User manual

Operating instructions
for the system user
VIESMANN
Heating system and mechanical ventilation system with heat pump control unit
Vitotronic 200, type WO1C
VITOTRONIC 200
5790940 GB 1/2017 Please keep safe.

2
Please follow these safety instructions closely to
prevent accidents and material losses.
Safety instructions explained
Danger
This symbol warns against the risk of injury.
!Please note
This symbol warns against the risk of material
losses and environmental pollution.
Note
Details identified by the word "Note" contain additional
information.
Target group
These operating instructions are intended for system
users.
This appliance can also be operated by children of 8
years and older, as well as by individuals with reduced
physical, sensory or mental faculties or those lacking
in experience and knowledge, provided such individu-
als are being supervised or have been instructed in the
safe use of this appliance as well as in any risks aris-
ing from it.
!Please note
Supervise children in the proximity of the appli-
ance.
■Never permit children to play with the appli-
ance.
■Cleaning and maintenance must not be car-
ried out by unsupervised children.
Appliance connection
■The appliance may only be connected and commis-
sioned by authorised contractors.
■Observe the specified electrical connection require-
ments.
■Modifications to the existing installation may only be
carried out by authorised contractors.
Danger
Incorrectly executed work on the system can
lead to life-threatening accidents.
Work on electrical equipment must only be car-
ried out by a qualified electrician.
Work on the appliance
■All settings and work on the appliance must be car-
ried out as specified in these operating instructions.
Further work on the appliance may only be carried
out by authorised contractors.
■Never open the appliance.
■Never remove casings.
■Never change or remove attachments or fitted
accessories.
■Never open or retighten pipe connections.
Danger
Hot surfaces can cause burns.
■Never open the appliance.
■Never touch the hot surfaces of uninsulated
pipes and fittings.
In case of fire
Danger
Fires create a risk of burns.
■Switch the system OFF.
■Use a tested fire extinguisher, class ABC.
Safety instructions
For your safety
5790940

3
Conditions for siting
Danger
Easily flammable liquids and materials (e.g.
naphtha, solvents, cleaning agents, paints or
paper) can cause deflagration and fire.
Never store or use such materials in the installa-
tion room or in direct proximity to the heating
system.
!Please note
Unsuitable ambient conditions can lead to sys-
tem damage and can put safe operation at risk.
■Maintain the permissible ambient tempera-
tures as detailed in the operating instructions.
■Appliance for indoor installation:
–Avoid air contamination through halogenated
hydrocarbons (e.g. as in paints, solvents
and cleaning agents).
–Avoid continuously high humidity levels (e.g.
through continuous drying of washing).
Auxiliary components, spare and wearing parts
!Please note
Components that were not tested with the sys-
tem may cause system damage, or may affect
its functions.
Have all installation or replacement work carried
out by qualified contractors.
Safety instructions
For your safety (cont.)
5790940

4
1. Introductory information Symbols ................................................................................................. 8
Intended use .......................................................................................... 8
Appliance description ............................................................................. 9
■Heat pump control unit ....................................................................... 9
■Heat pump types ................................................................................ 9
■Equipment and functions .................................................................... 10
■Mechanical ventilation systems .......................................................... 10
■Permissible ambient temperatures in the installation room ................ 11
■Outside temperature limits for air/water heat pumps / ........... 11
■Temperature limits for brine/water heat pumps and water/water heat
pumps ............................................................................................ 11
Commissioning ...................................................................................... 12
Terminology ........................................................................................... 12
Your system is preset at the factory ....................................................... 12
Energy saving tips ................................................................................. 13
Tips for greater comfort ......................................................................... 14
2. Operation Opening the control unit ......................................................................... 15
Programming unit .................................................................................. 15
■"Operating info" ................................................................................ 16
■Symbols on the display ....................................................................... 16
Standard menu ...................................................................................... 17
Extended menu ...................................................................................... 18
How to use the controls ......................................................................... 18
Operating program ................................................................................. 19
■Operating programs for heating, cooling, DHW, frost protection ........ 19
■Operating programs for ventilation ..................................................... 21
■Special operating programs ................................................................ 21
Time program ........................................................................................ 21
■Setting a time program using central heating/central cooling as an
example .............................................................................................. 22
■Setting the time program effectively ................................................... 23
■Deleting time phases .......................................................................... 23
3. Start-up/shutdown Starting the heat pump .......................................................................... 24
Shutting down the heat pump ................................................................ 25
■With frost protection ............................................................................ 25
■Without frost protection (shutdown) .................................................... 25
4. Central heating/central
cooling
Room temperature ................................................................................. 26
■Setting the standard room temperature for central heating/central
cooling ................................................................................................ 26
■Setting the reduced room temperature for central heating/central
cooling ................................................................................................ 26
Operating program ................................................................................. 26
■Setting the operating program for central heating/central cooling ...... 26
Time program ........................................................................................ 27
■Setting the time program for central heating/central cooling .............. 27
Heating system with heating water buffer cylinder ................................ 27
■Setting the time program for the heating water buffer cylinder ........... 27
Heating curve/cooling curve .................................................................. 28
■Setting curves for central heating/central cooling ............................... 28
Stopping central heating/central cooling ................................................ 29
Comfort function "Party mode" ............................................................ 29
■Setting "Party mode" for central heating/central cooling .................. 29
■Ending "Party mode" ........................................................................ 30
Energy saving function "Economy mode" ........................................... 30
■Setting "Economy mode" for heating ............................................... 30
■Ending "Economy mode" ................................................................. 31
Index
Index
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Energy saving function "Holiday program" ......................................... 31
■Setting the "Holiday program" for central heating/central cooling,
ventilation ........................................................................................... 31
■Changing "Holiday program" ........................................................... 32
■Cancelling or deleting the "Holiday program" .................................. 32
5. DHW heating DHW temperatures ................................................................................ 33
■Setting the standard DHW temperature ............................................. 33
■Setting the higher DHW temperature ................................................. 33
Operating program ................................................................................. 33
■Setting the operating program for DHW heating ................................ 33
Time program ........................................................................................ 33
■Setting the time program for DHW heating ......................................... 34
■Setting start optimisation .................................................................... 34
■Setting stop optimisation .................................................................... 35
■Setting a time program for the DHW circulation pump ....................... 35
DHW heating outside the time program ................................................. 35
■Starting "1x DHW heating" ............................................................... 35
Stopping DHW heating .......................................................................... 35
■You do not want to heat DHW, nor heat or cool the rooms: ................ 35
■You do not want to heat DHW, but do want to provide central heat-
ing: ...................................................................................................... 36
6. Heating system with elec-
tric booster heater
................................................................................................................ 37
7. Active cooling mode Enabling and blocking active cooling mode ........................................... 38
8. Air/water heat pumps Air/water heat pumps / .............................................................. 39
■Setting the time program for quieter operation ................................... 39
9. Mechanical ventilation Starting ventilation ................................................................................. 40
Stopping ventilation ............................................................................... 40
■Activating "Standby mode" ............................................................... 40
■Ending "Standby mode" ................................................................... 40
■Stopping ventilation to change the filters ............................................ 41
Operating program ................................................................................. 41
■Setting the operating program for ventilation ...................................... 41
Ventilation without heat recovery ........................................................... 41
■Setting the room temperature for ventilation ...................................... 41
■Setting the minimum temperature for ventilation ................................ 42
Time program ........................................................................................ 42
■Setting a time program for ventilation ................................................. 42
Comfort function "Intensive operation" ............................................... 43
■Setting "Intensive operation" for ventilation ..................................... 43
■Ending "Intensive operation" ........................................................... 43
Energy saving function "Economy mode" ........................................... 43
■Selecting "Economy mode" for ventilation ....................................... 43
■Ending "Economy mode" ................................................................. 44
Energy saving function "Holiday program" ......................................... 44
■Setting "Holiday program" for ventilation, central heating/central
cooling ................................................................................................ 44
■Changing "Holiday program" ........................................................... 44
■Cancelling or deleting the "Holiday program" .................................. 45
10. Power from a photovoltaic
system
Utilisation of power generated on site .................................................... 46
11. Smart Grid Utilising excess power ........................................................................... 47
12. Further adjustments Setting the display contrast .................................................................... 48
Index
Index
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Setting the display brightness ................................................................ 48
Setting names for heating/cooling circuits ............................................. 48
Setting the preferred heating/cooling circuit for the standard menu ...... 49
Setting the time and date ....................................................................... 49
Language selection ................................................................................ 49
Setting the temperature unit (°C/°F) ...................................................... 49
Restoring factory settings ...................................................................... 50
13. Calling up information Calling up information ............................................................................ 51
■Checking the solar energy yield ......................................................... 51
■Energy statement ............................................................................... 51
■Daily log .............................................................................................. 52
■Screed drying ..................................................................................... 52
Calling up messages ............................................................................. 54
14. Manual mode ................................................................................................................ 56
15. Special system versions ................................................................................................................ 57
16. What to do if... Rooms are too cold ................................................................................ 58
Rooms are too hot ................................................................................. 59
There is no hot water ............................................................................. 59
The DHW is too hot ............................................................................... 59
" " is flashing and "Note" is displayed ............................................... 60
" " is flashing and "Warning" is displayed .......................................... 60
" " is flashing and "Fault" is displayed ............................................... 60
"Power-OFF C5" is displayed ............................................................... 60
"External hook-up" is displayed .......................................................... 60
"External program" is displayed .......................................................... 60
"Controls locked out" is displayed ...................................................... 60
"A0 Vent.: check filter(s)" is displayed ................................................ 61
Doors/windows can only be opened with difficulty ................................. 61
Doors/windows bang when opened ....................................................... 61
17. Maintenance Cleaning the heating system ................................................................. 62
■Brine/water or water/water heat pumps .............................................. 62
■Air/water heat pumps .......................................................................... 62
■Air/water heat pumps with a plastic surface ....................................... 62
■Programming unit of the heat pump control unit ................................. 62
Heating system inspection and maintenance ........................................ 62
■DHW cylinder (if installed) .................................................................. 62
■Safety valve (DHW cylinder) ............................................................... 63
■Potable water filter (if installed) .......................................................... 63
■Damaged cables / lines ...................................................................... 63
Cleaning the mechanical ventilation system .......................................... 63
■Cleaning the supply air/extract air vents ............................................. 63
■Cleaning the kitchen extract air vent .................................................. 64
Cleaning or replacing filters ................................................................... 64
■Filters in the Vitovent 200-C ventilation unit ....................................... 65
■Filters in the Vitovent 200-W ventilation unit ....................................... 67
■Filters in the Vitovent 300-C ventilation unit ....................................... 69
■Filters in the Vitovent 300-F ventilation unit ........................................ 71
■Filters in the Vitovent 300-W ventilation unit ....................................... 72
■Replacing filters in the extract air valves ............................................ 75
■Resetting the service display .............................................................. 76
18. Appendix Refrigerant ............................................................................................. 77
Overview of extended menu .................................................................. 77
Terminology ........................................................................................... 84
■Defrosting ........................................................................................... 84
■Active cooling mode ("Active cooling") ............................................ 85
Index
Index
5790940

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■System version ................................................................................... 85
■Operating program ............................................................................. 85
■Operating status ................................................................................. 85
■Pressure imbalance ............................................................................ 85
■Utilisation of power generated on site ................................................ 85
■Electric booster heater ........................................................................ 86
■Enthalpy heat exchanger .................................................................... 86
■Power-OFF ......................................................................................... 87
■Underfloor heating .............................................................................. 87
■Reduced noise operation .................................................................... 87
■Heating mode/cooling mode ............................................................... 87
■Heating curve/cooling curve ............................................................... 88
■Heating/cooling circuits ....................................................................... 90
■Heating circuit pump ........................................................................... 90
■Instantaneous heating water heater ................................................... 90
■Heating water buffer cylinder .............................................................. 90
■Cascade ............................................................................................. 91
■Controlled mechanical ventilation ....................................................... 91
■Cooling mode ..................................................................................... 92
■Cooling functions ................................................................................ 93
■Cooling curve ...................................................................................... 93
■Cooling circuit ..................................................................................... 93
■Output matching ................................................................................. 93
■Ventilation ........................................................................................... 93
■Mixer ................................................................................................... 94
■Room temperature .............................................................................. 94
■Smart Grid (SG) .................................................................................. 94
■Safety valve ........................................................................................ 95
■Secondary pump ................................................................................ 95
■Solar circuit pump ............................................................................... 95
■Cylinder primary pump ....................................................................... 95
■Drinking water filter ............................................................................. 96
■Evaporator .......................................................................................... 96
■Compressor ........................................................................................ 96
■Condenser .......................................................................................... 96
■Heat pump cascade ............................................................................ 96
■Weather-compensated heating/cooling mode .................................... 96
■Domestic ventilation ........................................................................... 96
■Time program ..................................................................................... 96
■DHW circulation pump ........................................................................ 97
■Two-stage heat pumps ....................................................................... 97
System equipment and functions ........................................................... 97
Information on disposal .......................................................................... 98
■Disposal of packaging ........................................................................ 98
■Final decommissioning and disposal of the heating system ............... 98
19. Keyword index ................................................................................................................ 99
Index
Index (cont.)
5790940

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Symbol Meaning
Reference to other document containing
further information
1.
Step in a diagram:
The numbers correspond to the order in
which the steps are carried out.
Warning of material losses and environ-
mental pollution
Live electrical area
Pay particular attention.
■Component must audibly click into place.
or
■Acoustic signal
■Fit new component.
or
■In conjunction with a tool: Clean the sur-
face.
Dispose of component correctly.
Dispose of component at a suitable collec-
tion point. Do not dispose of component in
domestic waste.
Appliance types
Symbol Meaning
Content only applies to brine/water heat
pumps.
Content only applies to air/water heat
pumps.
Content only applies to air/water heat
pumps with separate indoor/outdoor units.
Intended use
The appliance is only intended to be installed and
operated in sealed unvented heating systems that
comply with EN 12828, with due attention paid to the
associated installation, service and operating instruc-
tions.
Depending on the version, the appliance can only be
used for the following purposes:
■Central heating
■Central cooling
■DHW heating
The range of functions can be extended with additional
components and accessories.
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Commercial or industrial usage for a purpose other
than central heating/cooling or DHW heating shall be
deemed inappropriate.
Incorrect usage or operation of the appliance (e.g. the
appliance being opened by the system user) is prohibi-
ted and will result in an exclusion of liability. Incorrect
usage also occurs if the components in the heating
system are modified from their intended function.
Note
The appliance is intended exclusively for domestic or
semi-domestic use, i.e. even users who have not had
any instruction are able to operate the appliance
safely.
Introductory information
Symbols
5790940

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Heat pump control unit
The Vitotronic 200 heat pump control unit, type WO1C
controls all functions of your heating system with heat
pump and mechanical ventilation.
The heat pump control unit may be installed in different
locations depending on the type of heat pump: see
page 15.
■At the front of the heat pump
■At the top of the heat pump
■In a separate enclosure on the wall
Heat pump types
Air/water heat pumps
Air/water heat pumps utilise energy from the ambient
air to generate heat. To achieve this, a fan draws the
ambient air through a heat exchanger (evaporator). In
the evaporator, the thermal energy from this ambient
air is transferred to the refrigerant circuit. Here, the
temperatures necessary for central heating and DHW
heating are generated. The refrigerant circuit is driven
by the compressor.
To provide central cooling, the refrigerant circuit oper-
ates in reverse. Heat is extracted from your rooms and
transferred to the ambient air via the evaporator.
Note
Air/water heat pumps can have two stages. Two-stage
air/water heat pumps have 2 compressors which can
be activated individually or simultaneously subject to
the requested heating output.
Air/water heat pumps are available in the following
casing/installation versions:
Heat pump for indoor installation
■All of the heat pump components, including the heat
pump control unit, are housed in a casing and instal-
led inside the building. The outdoor air is brought to
the heat pump and returned to the outside via an air
duct system.
Heat pump for outdoor installation
■All of the heat pump components, except for the heat
pump control unit, are housed in a casing that is
installed outside the building. The heat pump control
unit is mounted inside the building. The heat pump is
hydraulically connected to the heating system of the
building.
Air/water heat pumps with separate indoor/outdoor
units
The outdoor unit is installed outside the building or fit-
ted to the outside of the building. Heat is obtained from
the ambient air in the outdoor unit.
The indoor unit, including the heat pump control unit, is
installed inside the building and transfers the heat to
the heating system.
The indoor and outdoor units are connected to each
other hydraulically and electrically.
Brine/water heat pumps
Brine/water heat pumps utilise geothermal energy to
generate heat. The geothermal energy is transferred to
the refrigerant circuit using a heat transfer medium
(brine). Here, the temperatures necessary for central
heating and DHW heating are generated. Here too, a
compressor drives the refrigerant circuit.
To provide central cooling, the heat pump extracts heat
from your rooms and transfers it to the ground.
Brine/water heat pumps are installed inside the build-
ing.
Note
Brine/water heat pumps can have two stages. Two-
stage brine/water heat pumps have 2 compressors
which can be activated individually or simultaneously
subject to the requested heating output.
Depending on heat pump type, the two compressors
can be installed in a single casing or in 2 adjacent cas-
ing units. Both compressors are controlled by one heat
pump control unit.
Water/water heat pumps
Water/water heat pumps utilise e.g. groundwater to
generate heat, following the same principle as brine/
water heat pumps. The energy from the groundwater
reaches the refrigerant circuit via a heat transfer
medium.
With auxiliary components, a brine/water heat pump
can be used as a water/water heat pump.
Water/water heat pumps are installed inside the build-
ing.
Introductory information
Appliance description
5790940

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Equipment and functions
The heat pump types differ in their equipment levels:
■DHW cylinder
■Electric booster heater (instantaneous heating water
heater)
■High efficiency circulation pumps
■…
The heat pump types differ in the available functions:
■Number of heating circuits
■Solar DHW heating
■Central cooling
■Noise reduction
■Output control
■Utilisation of power generated on site
■Utilisation of excess power from the grid (Smart Grid)
■…
Your contractor will have listed the equipment and
functions of your heating system in the form on
page 97.
Mechanical ventilation systems
Mechanical ventilation systems provide controlled ven-
tilation of detached houses or apartments.
If your Viessmann system includes mechanical ventila-
tion, the central ventilation unit can be controlled and
operated by the heat pump control unit.
Ventilation operation adapts automatically to your
requirements via a time program. "Economy mode"
and the "Holiday program" help you to save energy.
With "Intensive operation", you increase the air
changes in the building and quickly expel odours and
moisture to the outside.
The following central ventilation units are supported:
Vitovent 200-C
Vitovent 200-C is suitable for detached houses or
apartments with up to 120 m2 of living space.
Vitovent 200-C meets the requirements for passive
house use.
The ventilation unit can either be mounted on a wall or
installed on the ceiling.
As well as being controlled by the heat pump control
unit, ventilation can also be activated by a switch or
button (bathroom switch) connected to the ventilation
unit, e.g. if you need the highest ventilation level for a
short period.
Vitovent 200-W
Vitovent 200-W is suitable for detached houses or
apartments with up to 230 m2 of living space.
This ventilation unit is mounted on a wall.
To prevent moisture damage to the building, the venti-
lation unit adjusts the air changes automatically,
depending on the relative humidity in your rooms
(accessories required).
Vitovent 300-C
Vitovent 300-C is suitable for detached houses or
apartments with up to 90 m2 of living space.
Vitovent 300-C meets the requirements for passive
house use.
The ventilation unit can either be mounted on a wall or
installed on the ceiling.
To ensure good air quality in your building, the ventila-
tion unit adjusts the air changes automatically, depend-
ing on the relative humidity and/or carbon dioxide con-
centration in your rooms (accessories required).
Vitovent 300-F
Vitovent 300-F is suitable for detached houses or
apartments with up to 180 m2 of living space.
Vitovent 300-F meets the requirements for passive
house use.
This ventilation unit is installed near the heat pump
control unit.
To ensure good air quality in your building, the ventila-
tion unit adjusts the air changes automatically, depend-
ing on the relative humidity and/or carbon dioxide con-
centration in your rooms (accessories required).
In addition to actual mechanical ventilation, your rooms
can also be supplied with heat from the heat pump via
the ventilation system. This method of heating the sup-
ply air can be used as the sole heat source in buildings
with very good thermal insulation. For supply air heat-
ing, your contractor will have connected the ventilation
unit to heating circuit HC1 of your heat pump. This
means heating circuit HC1 is then a ventilation heating
circuit.
Vitovent 300-W
Vitovent 300-W is suitable for detached houses or
apartments with up to 370 m2 of living space.
Introductory information
Appliance description (cont.)
5790940

11
Vitovent 300-W meets the requirements for passive
house use.
This ventilation unit is mounted on a wall.
To ensure good air quality in your building, the ventila-
tion unit adjusts the air changes automatically, depend-
ing on the relative humidity and/or carbon dioxide con-
centration in your rooms (accessories required).
Permissible ambient temperatures in the installation room
!Please note
The appliance may develop faults if it is oper-
ated outside the specified temperature ranges.
Ensure that the specified temperature range is
maintained in the installation room.
Appliance Ambient temperature
Min. Max.
Heat pumps installed inside the building
■Brine/water and water/water heat pumps including heat pump control unit 0 °C 35 °C
■Vitocal 200-A air/water heat pump including heat pump control unit 5 °C 30 °C
■Indoor units of air/water heat pumps with separate indoor/outdoor units 0 °C 35 °C
■All other air/water heat pumps including heat pump control unit 0 °C 35 °C
Heat pump control units fitted inside the building
■Separate heat pump control units of air/water heat pumps for outdoor instal-
lation
0 °C 35 °C
Central ventilation units
■All types 2 °C 35 °C
Outside temperature limits for air/water heat pumps /
Air/water heat pumps utilise outdoor air as the heat
source. They only operate efficiently within certain out-
side temperature limits, e.g. between –20 °C and
+35 °C. If the outdoor air exceeds the upper tempera-
ture limit or falls below the lower temperature limit,
these heat pumps temporarily shut down. You will see
a message about this on the heat pump control unit.
In order to meet the heat demand for central heating
and DHW heating outside the temperature limits, the
heat pump control unit automatically switches on the
available auxiliary heaters as required, e.g. electric
booster heater.
Note
You must enable electric booster heaters for heat gen-
eration: see page 37.
Once the outside temperature is back within the tem-
perature limits, the heat pump is automatically ready
for operation again.
Temperature limits for brine/water heat pumps and water/water heat pumps
With brine/water heat pumps and water/water heat
pumps, the heat is transferred to the heat pump via the
heat transfer medium (brine). As heat sources, the
ground and groundwater remain at an almost constant
temperature level throughout the year. It is therefore
extremely unlikely that the permissible temperature
limits for brine entry into the heat pump will be excee-
ded or undershot.
If your brine/water heat pump or water/water heat
pump shuts down due to excessively high or low brine
inlet temperatures, there may be a fault. You will see a
message about this on the heat pump control unit. In
such cases, inform your local contractor.
Introductory information
Appliance description (cont.)
5790940

12
The commissioning and matching up of the heat pump
control unit to local conditions and to the structural
characteristics of the building, plus the instruction of
the user in operating the system, must be carried out
by your heating contractor.
Note
These operating instructions also describe functions
that are only available on some heat pump models or
only with accessories. These functions are not specifi-
cally identified.
Your contractor will have listed the equipment and
functions of your heating system in the form on
page 97.
For questions relating to the extent of functions and
accessories for your heat pump and your heating sys-
tem, check with your contractor.
Terminology
To provide you with a better understanding of the func-
tions of your heat pump control unit, some terminology
is explained.
The terms are marked as follows:
Further information can be found in chapter
"Terminology" in the appendix.
Your system is preset at the factory
Your heating system is preset at the factory and is
therefore ready for operation:
Central heating/central cooling
■Your home will be heated to 20 °C from 00:00 to
24:00 h "Set room temperature" (standard room
temperature).
■If a heating water buffer cylinder is installed, this
heating water buffer cylinder will be heated.
■Active cooling mode is blocked: see page 38.
DHW heating
■The DHW is heated every day from 00:00 to 24:00 h
to 50 °C "Set DHW temperature".
■Any installed DHW circulation pump is switched off.
■The electric booster heater, if installed, is enabled:
see page 37.
Frost protection
■Frost protection is ensured for your heat pump, DHW
cylinder and any heating water buffer cylinder that
may be installed.
Note
In the following cases, frost protection is only guar-
anteed with an auxiliary heater (on site):
–Air/water heat pumps:
At temperatures below −15 °C
–When there is a heat pump fault
Auxiliary heaters may include instantaneous heating
water heaters or oil/gas boilers.
Mechanical ventilation with Viessmann ventilation
unit
■From 00:00 to 24:00 h: Mechanical ventilation in the
"Standard" operating status
Wintertime/summertime changeover
■This changeover is automatic.
Date and time
■The date and time were set by your contractor.
You can change the settings at any time to suit your
individual requirements.
Power failure
All settings are saved if there is a power failure.
Introductory information
Commissioning
5790940

13
Central heating/central cooling
■Standard room temperature ("Set room tempera-
ture"): see page 26.
Do not overheat your home. Every degree of room
temperature reduction saves up to 6 % on your heat-
ing bills.
Never set your standard room temperature higher
than 20 °C.
■Time program: see page 27.
Heat your home to the standard room temperature
during the day and the reduced temperature at night
(not suitable for underfloor heating). Set the time pro-
gram for this.
■Heating curve/cooling curve: see page 28.
The heating curve enables you to individually adjust
the heating system to the actual heat demand in your
home. If set correctly, your rooms will be heated to
the standard room temperature all year round. The
same applies to the cooling curve.
■Operating program
If you do not require central heating or cooling, select
one of the following operating programs:
–"Only DHW": see page 33.
If you require no heating for your home in summer,
but you require DHW.
–"Standby mode": see page 25.
If you don't need to heat your home and don't
require DHW for long periods.
■Short absence: see page 30.
Reduce the room temperature, for example when
you go on a shopping trip (not suitable for underfloor
heating systems). For this, select "Economy
mode".
■Holiday: see page 31.
If you are going away, set the "Holiday program":
The room temperature is reduced and DHW heating
is turned off. In connection with a ventilation unit, a
lower ventilation level will be selected.
■Ventilation
Close the thermostatic valves when venting/airing.
Open windows fully for a short time (if no mechanical
ventilation system has been installed).
■Roller shutters
Close roller shutters (if installed) at dusk.
■Thermostatic valves
Ensure that thermostatic valves are properly adjus-
ted. Ask your contractor about this if necessary.
■Radiators
Never cover radiators or thermostatic valves.
DHW heating
■DHW circulation pump: see page 35.
Only activate the DHW circulation pump for periods
in which DHW is regularly drawn off. Set the time
program for this.
■DHW consumption
Consider showering instead of running a bath. A
shower generally uses less energy than a full bath.
Mechanical ventilation (in conjunction with a venti-
lation unit)
■Short absence: see pages 41 and 43.
If you are going out for a while, for example on a
shopping trip, reduce the ventilation level. For this,
select "Economy mode" or the "Standard opera-
tion" operating program.
■Holiday: see page 44.
If you are going away, set the "Holiday program".
The ventilation level is reduced. The room tempera-
ture is reduced and DHW heating is turned off.
Utilisation of power generated on site (in conjunc-
tion with a photovoltaic system)
■Use the power generated by your photovoltaic sys-
tem for your heating system: see page 46.
Utilising excess power (Smart Grid)
■Utilise free or cheap excess power from the power
supply utility for your heating system: see page 47.
For additional energy saving functions of the heat
pump control unit, please contact your contractor.
Introductory information
Energy saving tips
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14
Central heating/central cooling
■Standard room temperature ("Set room tempera-
ture"): see page 17.
Select your individual preferred temperature in the
standard menu at any time.
■Preferred heating/cooling circuit: see page 49.
If your heating system comprises several heating cir-
cuits, you can input the important settings for a pre-
ferred heating/cooling circuit directly in the standard
menu.
■Time program: see page 27.
Make use of the time program. In the time program,
you can set time phases with different room temper-
atures, for example different temperatures for day
and night time.
■Heating water buffer cylinder (if installed): see
page 27.
Set the time program for the heating water buffer cyl-
inder so there is always sufficient heat for your heat-
ing circuits, for example to bridge power-OFF times
imposed by your local power supply utility.
■Electric booster heater (if installed): see page 37.
Enable the electric booster heater. Set the time pro-
gram for this. The electric booster heater starts auto-
matically if large amounts of heat are suddenly
required.
■"Active cooling mod.": see page 38.
After enabling active cooling mode, a high cooling
capacity is available for centrally cooling your home,
if required.
■Heating curve/cooling curve: see page 28.
The heating curve enables you to individually adjust
the heating system to the actual heat demand in your
home. If set correctly, your preferred temperature will
be achieved all year round. The same applies to the
cooling curve.
■"Party mode": see page 29.
Select "Party mode" if you want to heat your home
to a different temperature than the one set in the
time program.
Example: late in the evening, the reduced room tem-
perature is set by the time program. Your guests stay
longer.
DHW heating
■Time program: see pages 33 and 35.
Use the time program for DHW heating. Adjust the
DHW heating to suit your requirements, so that more
hot water is available in the mornings than during the
day, for example.
Use the time program for the DHW circulation pump.
During the selected time phases, DHW is available
at the draw-off points at the required temperature.
■"Start optimisation": see page 34.
The start optimisation ensures that your DHW cylin-
der will be heated to the selected temperature at the
beginning of any heating phase.
■"Stop optimisation": see page 35.
The stop optimisation ensures that your DHW cylin-
der will be heated to the selected temperature at the
end of any heating phase.
■Once-only DHW heating: see page 35.
With "1x DHW heating" the heat pump will immedi-
ately heat up the DHW cylinder, independent of any
time program.
■Electric booster heater (if installed): see page 37.
Enable the electric booster heater. Set the time pro-
gram for this. The electric booster heater starts auto-
matically, if the heat pump on its own cannot heat up
the DHW cylinder quickly enough, for example dur-
ing the power-OFF times enforced by the local power
supply utility.
Mechanical ventilation (in conjunction with a venti-
lation unit)
■"Intensive operation": see page 43.
"Intensive operation" enables you to increase the
air change rate in your home, for example when
cooking.
Quieter operation of air/water heat pumps
■Quieter operation: see page 39.
Select the time program for quieter operation,
for example in order to reduce the noise level of your
air/water heat pump at night.
Introductory information
Tips for greater comfort
5790940

15
The heat pump control unit may look different depend-
ing on the type of heat pump.
Control unit at the front of the heat pump
14°C 21°C
Fig. 1
Control unit at the top of the heat pump
BA
Fig. 2
ATop part of control unit with programming unit
BPushbutton for changing the angle
Control unit as a separate enclosure on the wall
Fig. 3
Note
■For air/water heat pumps installed outside the build-
ing.
■Brief operating instructions can be found on the back
of the flap. To open, pull the top edge of the flap for-
ward.
Programming unit
You can change all heat pump control unit settings
centrally at the programming unit.
If remote controls are installed in your rooms, you can
also adjust the settings at these remote controls.
Remote control operating instructions
Operation
Opening the control unit
5790940

16
14°C 21°C
Fig. 4
Takes you to the previous step in the menu or
cancels a setting that has been started.
Cursor keys
Scrolls through the menu or adjusts values.
OK Confirms your selection or saves the setting
made.
Calls up "Operating info" (see following chapter)
or additional information on the selected menu.
Calls up the extended menu.
2 control levels are available:
■The standard menu: see page 17.
■The extended menu: see page 18.
Note
The screensaver is activated if you have not made
any adjustments on the programming unit for a few
minutes: see page 18.
"Operating info"
The display shows brief instructions on how to operate
the appliance.
How to call up "Operating info":
■Screensaver is active; see page 15:
Press .
■From anywhere in the menu:
Press repeatedly until the standard menu is
shown: see page 17.
Press .
Symbols on the display
These symbols are not always displayed, but appear
subject to the system version and the operating condi-
tion.
Displays:
Frost protection is active.
Central heating to standard room temperature
Central heating with reduced room temperature
Party mode is active for central heating.
Economy mode is active for central heating.
In conjunction with a solar thermal system:
Solar circuit pump is running.
Compressor is running.
For brine/water and water/water heat pumps:
Primary pump is running.
For air/water heat pumps:
Fan is running.
Instantaneous heating water heater is active (elec-
tric booster heater).
In conjunction with a cooling circuit:
Cooling mode is active.
In conjunction with a photovoltaic system:
Utilisation of power generated on site is active.
In conjunction with a special connection to the
power supply utility (Smart Grid):
The heat pump start characteristics are influenced
by the power supply utility. Power-OFF or utilisation
of excess power is active.
Heating/cooling circuits::
HC... Heating circuit ...
or
Heating/cooling circuit ...
SKK Separate cooling circuit
Operating programs:
■Operating programs for heating, cooling, DHW:
, , , :
Explanation of symbols: see page 19.
■Operating programs for ventilation:
Ventilation levels
0
to
4
, depending on the selec-
ted operating program: see page 21.
Operation
Programming unit (cont.)
5790940

17
Ventilation levels (in conjunction with a ventilation
unit):
0
No ventilation
1
Minimum air flow rate
2
Reduced air flow rate
3
Standard air flow rate
4
Maximum air flow rate
2
Frost protection for the ventilation unit is active.
Symbol using ventilation level 2 as an example
2
Preheating coil for the ventilation unit, if installed,
is switched on. Symbol using ventilation level 2
as an example
Ventilation unit has been shut down at the
ON/OFF switch or the mains plug has been dis-
connected.
Messages: see page 54.
Fault
Warning
Note
Standard menu
In the standard menu, you can make and check the
following settings for the preferred heating/cooling cir-
cuit D:
■Set room temperature
■Operating program
Call up the standard menu as follows:
■Screensaver is active; see page 18:
Press OK.
■If you are in the extended menu, see page 18:
Keep pressing until the standard menu appears.
B
C
A
40°CFlow temperature
14°C 21°C
HC1
D
Fig. 5
AOperating program for the preferred heating/cool-
ing circuit (D)
BCurrent outside temperature
CSet room temperature for the preferred heating/
cooling circuit (D)
DPreferred heating/cooling circuit: see page 49.
Not shown if only one heating/cooling circuit is
installed.
Note
■In the case of special system versions, the standard
menu may differ from the display shown here: see
chapter "Special system versions" on page 57.
■The settings for the preferred heating/cooling circuit
can also be adjusted in the extended menu: see
page 18.
■The settings for any other connected heating/cooling
circuits can only be adjusted in the extended menu.
■The settings for ventilation (if installed) can only be
adjusted in the extended menu.
■Your contractor can block operation for the standard
menu. In such cases, you will not be able to make
adjustments in either the standard menu or the
extended menu. "Controls locked out" is dis-
played.
Setting the standard temperature for the preferred
heating/cooling circuit
Press the following keys:
1. / for the required value
2. OK to confirm
Setting the operating program for the preferred
heating/cooling circuit
Press the following keys:
1. / for the required operating program
2. OK to confirm
Operation
Programming unit (cont.)
5790940

18
In the extended menu, you can adjust and call up all
the settings from the heat pump control unit range of
functions, e.g. holiday program and time programs.
You can find the menu overview from page 77.
Call up the extended menu as follows:
■If the screensaver is active:
Press OK and then .
■From anywhere in the menu:
Press .
Note
Your contractor can block operation for the extended
menu. In this case, you can only call up messages
(see page 51) and, in exceptional cases, activate
manual mode (see page 56). Use manual mode only
after consulting your contractor.
Menu
Manual mode
Continue with
System
DHW
Heating/cooling
OK
F
i
Fig. 6
FDialogue line
How to use the controls
The screensaver will become active if you have not
adjusted any settings on the programming unit for a
few minutes. The display brightness is reduced.
Screensaver
14°C 21°C
B
C
Fig. 7
BCurrent outside temperature
CSet room temperature
1. Press OK.
This takes you to the standard menu: see page 17.
2. Press .
The selected menu point is highlighted in white.
This takes you to the extended menu: see
page 18.
Instructions on what to do are provided in dialogue
line F: see diagram 6 on page 18.
You can input the central heating/central cooling set-
tings for every heating/cooling circuit. It is therefore
necessary to select the required heating/cooling circuit
prior to inputting the settings (e.g. room temperature).
The following diagram shows how to input settings,
using the set room temperature setting as an example.
The diagram shows the setting with and without select-
ing the heating circuit, as well as various dialogue
lines.
Operation
Extended menu
5790940

19
Vv
or
OK
Ú
OK
OK
Heating circuit 1
Economy mode
ÙÚ
Party mode
HC1 Htg circuit selection ÙÚ
HC2
Was selected
Heating circuit 2
Set room temperature HC1
20 °C
Change with (
Set room temperature HC1
22 °C
Adopt with OK
Set room temperature HC1
22 °C
Adopted
ê
ê
ÙÚ
HC1
Heating circuit 2
Economy mode
ÙÚ
Party mode
HC1
Continue with OK
ê
ê
ÙÚ
HC2
Set red. room temp
Set red. room temp
Set room temperature
Set room temperature
Vv
or
OK
Set room temperature HC2
20 °C
Change with (
Set room temperature HC2
22 °C
Adopt with OK
Set room temperature HC2
22 °C
Adopted
OK / /
v v
Heating circuit 1
Economy mode
Party mode
HC1
Continue with OK
ê
ê
Set red. room temp
Set room temperature
/
v v
OK
OK
40 °CFlow temperature
HC1
14 °C 21 °C
Menu
DHW
Continue with OK
Manual mode
System
Heating/cooling
i
Select with (
Fig. 8
Operating program
Operating programs for heating, cooling, DHW, frost protection
Only central heating
Heat/cooling circ System version with DHW heating System version without DHW heating
Symbol Operating program Symbol Operating program
Heating circuit
"HC1", "HC2",
"HC3"
"Standby mode" "Standby mode"
"Only DHW" — —
"Heating and DHW"
(Factory setting)
"Htg"
Operation
How to use the controls (cont.)
5790940

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Central heating and central cooling
Heat/cooling circ System version with DHW heating System version without DHW heating
Symbol Operating program Symbol Operating program
Heating/cooling cir-
cuit
"HC1", "HC2",
"HC3"
"Standby mode" "Standby mode"
"Only DHW" — —
"Heating/cooling and DHW"
(Factory setting)
"Heating/cooling"
Separate cooling
circuit
"SKK"
"Standby mode" "Standby mode"
"Only DHW" — —
"Cooling and DHW"
(Factory setting)
"Cooling"
Functions of the operating programs
Central heating/central cooling and DHW heating
Symbol Operating program Function
"Heating and DHW" ■The rooms of the selected heating circuit are heated in accordance
with the room temperature and time program specified: see chapter
"Central heating/central cooling".
■DHW is heated in accordance with the DHW temperature and time
program specified: see chapter "DHW heating".
"Heating/cooling and
DHW"
■The rooms of the selected heating/cooling circuit are heated/cooled in
accordance with the room temperature and time program specified:
see chapter "Central heating/central cooling"
■DHW is heated in accordance with the DHW temperature and time
program specified: see chapter "DHW heating".
"Cooling and DHW" ■The rooms in the separate cooling circuit are cooled constantly. You
cannot set a time program.
■DHW is heated in accordance with the DHW temperature and time
program specified: see chapter "DHW heating".
DHW heating
Symbol Operating program Function
"Only DHW" ■DHW is heated in accordance with the DHW temperature and time
program specified: see chapter "DHW heating".
■No central heating/central cooling
■Frost protection for the heating water buffer cylinder (if installed) is ac-
tive.
Central heating/central cooling
Symbol Operating program Function
"Htg" ■The rooms of the selected heating circuit are heated in accordance
with the room temperature and time program specified: see chapter
"Central heating/central cooling".
"Heating/cooling" ■The rooms of the selected heating/cooling circuit are heated/cooled in
accordance with the room temperature and time program specified:
see chapter "Central heating/central cooling".
"Cooling" ■The rooms in the separate cooling circuit are cooled constantly. You
cannot set a time program.
Operation
Operating program (cont.)
5790940