Viessmann VITOCAL 300-G Operating Instructions Manual

Operating instructions

for the system user

Compact heat pump with electric drive

Single and two-stage, type BW/BWS, WW/WWS

VIESMANN

VITOCAL 300-G

5592 637 GB 11/2009 Please keep safe.

2

Safety instructions

For your safety

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 designed for system users.

This appliance is not designed to be used by persons (including children) with limited physical, sensory or mental capacities, or lacking experience and/or knowledge, unless they are supervised by a person responsible for their safety, or have received instructions from such a person as to how to use the appliance.

!

Please note

Children should be supervised.

Ensure that children never play with the appliance.

Danger

Incorrect work on the system can lead to life-threatening accidents.

Work on electrical equipment must only be carried out by a qualified electrician.

In case of fire

Danger

With fire there is a risk of burning.

■ Shut down the system.

■ Use a tested fire extinguisher, class ABC.

Installation room conditions

!

Please note

Incorrect ambient conditions can lead to system damage and can put the safe operation at risk.

■ Ensure ambient temperatures above 0 ºC and below 35 ºC.

■ Avoid air contamination through halogenated hydrocarbons (e.g. as in paints, solvents and cleaning agents).

■ Avoid continuously high humidity levels (e.g. through frequent drying of washing).

For your safety

(cont.)

Auxiliary components, spare and wearing parts

!

Please note

Components that are not tested with the system may cause system damage, or may affect its functions.

Installation or replacement work must only be carried out by qualified personnel.

Safety instructions

3

Index

Index

Introductory information

Device description................................................................................................

6

Commissioning.....................................................................................................

6

Your system is preset at the factory.....................................................................

7

Terminology..........................................................................................................

7

Energy saving tips................................................................................................

8

Operation

Controls................................................................................................................ 10

Menu.................................................................................................................... 11

How to use the controls........................................................................................ 13

Start-up/shutdown

Starting the heat pump......................................................................................... 16

Stopping the heat pump....................................................................................... 16

■ With frost protection monitoring........................................................................ 16

■ Without frost protection monitoring (shutting down the system)....................... 17

Central heating/cooling

Central heating/cooling......................................................................................... 18

Required settings (heating/cooling)...................................................................... 19

Selecting the heating/cooling circuit..................................................................... 19

Setting the room temperature............................................................................... 20

Enabling electric heater for central heating.......................................................... 20

Setting the heating/cooling operating program.................................................... 21

Setting the time program for heating/cooling........................................................ 21

Changing the heating curve................................................................................. 23

Enabling and disabling the active cooling mode.................................................. 24

Stopping the central heating/cooling.................................................................... 25

Comfort and energy saving functions

Selecting party mode............................................................................................ 26

Selecting economy mode..................................................................................... 27

Selecting the holiday program.............................................................................. 27

DHW heating

Required settings (DHW heating)......................................................................... 29

Setting the DHW temperatures............................................................................ 29

Enabling electric heater for DHW heating............................................................ 29

Setting the operating program for DHW heating.................................................. 30

Setting the time program for DHW heating.......................................................... 31

■ DHW heating outside the time program............................................................ 33

Setting the time program for DHW circulation pump............................................ 34

4

Index

Index

(cont.)

Switching off DHW heating................................................................................... 36

Heating water buffer cylinder

Setting a time program for the heating water buffer cylinder................................ 37

Further adjustments

Setting the display brightness.............................................................................. 39

Setting the display contrast.................................................................................. 39

Entering designations for the heating circuits....................................................... 39

Setting the time and date..................................................................................... 40

Language selection.............................................................................................. 40

Selecting a temperature unit (°C/°F).................................................................... 40

Restoring factory settings..................................................................................... 41

Scanning

Scanning information............................................................................................ 42

Scanning messages............................................................................................. 43

Manual mode ...................................................................................................... 45

What to do if...

Rooms are too cold.............................................................................................. 46

Rooms are too hot................................................................................................ 46

There is no hot water............................................................................................ 47

" " flashes and "Note" is displayed...................................................................... 47

" " flashes and "Warning" is displayed............................................................... 47

" " flashes and "Fault" is displayed..................................................................... 47

"Power-OFF C5" is displayed............................................................................... 48

"External program" is displayed........................................................................... 48

Maintenance

Servicing............................................................................................................... 49

■ Cleaning............................................................................................................ 49

■ Inspection and maintenance............................................................................. 49

Appendix

Menu overview..................................................................................................... 50

■ Standard menu................................................................................................. 50

■ Extended menu................................................................................................. 51

Terminology.......................................................................................................... 53

Keyword index .................................................................................................... 60

5

Introductory information

Device description

The Vitocal 300-G is a brine/water heat pump with electric drive. It can be operated in single stage (type BW/WW) or two-stage (type BW/WW + type BWS//

WWS) mode.

■ Heating circuits:

Up to 3 heating circuits (2 with mixers) can be heated.

■ Dual-mode:

The heat pump supports dual mode operation with an additional external heat source, e.g. oil condensing boiler.

■ Cooling:

The natural cooling and active cooling functions are supported if the required accessories are installed. Cooling is provided via a heating circuit, e.g.

underfloor heating circuit, or via a separate cooling circuit, e.g. chilled ceiling or fan convector.

■ DHW heating:

The control side of this equipment is prepared for DHW heating using an external DHW cylinder, and the control of a DHW circulation pump.

■ Heat pump control unit:

All connected components are operated and controlled via the integral heat pump control unit Vitotronic 200, type WO1A with plain text menus.

Note

These operating instructions also describe functions that are only available with accessories. These functions are not universally identified in each case.

The type and extent of menu entries in the heat pump control unit also depend on the equipment level of your heating system and the selected settings/adjustments on the heat pump control unit.

In case of questions relating to the extent of functions and accessories for your heat pump and your heating system, check with your local heating contractor.

Commissioning

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.

6

Introductory information

Your system is preset at the factory

At the factory, the heat pump control unit is set to "Heating and DHW" .

Your heating system is therefore ready for use:

Central heating/cooling

■ Your rooms are heated to 20 °C "Set room temperature" around the clock

(standard heating mode).

■ If a heating water buffer cylinder is installed, it will be heated.

■ Cooling will be switched OFF.

■ Your heating contractor can make further settings for you during commissioning.

You can change any settings individually at any time to suit your requirements (see chapter "Central heating/ cooling").

DHW heating

■ DHW is heated around the clock every day. DHW is heated to 50 °C.

■ Any installed DHW circulation pump is off.

■ Your heating contractor can make further settings for you during commissioning.

You can change any settings individually at any time to suit your requirements (see chapter "DHW heating").

Frost protection

■ Frost protection for your heat pump, the DHW cylinder and any heating water buffer cylinder that may be installed is enabled.

Winter/summertime changeover

■ This changeover is automatic.

Time and date

■ The day and time were set by your heating contractor during commissioning.

Power failure

■ All data is saved if there is a power failure.

Terminology

To provide you with a better understanding of the functions of your heat pump control unit, the appendix contains the chapter "Terminology" (see page 53).

7

Introductory information

Energy saving tips

C

D

B A

E

Utilise the setting options offered by the heat pump control unit A and by the remote control (if installed):

■ Never overheat your rooms. Every degree by which the room temperature is reduced saves up to 6% on heating costs.

Set your room temperature no higher than 20 ºC (see page 20).

■ Heat your rooms with the standard room temperature during the day and the reduced temperature at night. Set the time program for this. Select the time phases according to your needs, e.g. differently at the weekend to the weekdays (not for underfloor heating systems, see page 9).

■ For room heating or room cooling, select the heating program that meets your current requirements:

– For short absences (a couple of hours, e.g. shopping trips), select

"Economy mode" (not for underfloor heating systems, see page 9).

As long as economy mode is activated, the room temperature is reduced.

– If you are going away, set the "Holiday program" (see page 27).

As long as the holiday program is activated, the room temperature is reduced and DHW heating is OFF.

– In summer, if you do not want to heat any rooms but do need DHW, select the operating program "Only

DHW" (see page 30).

– If you don't want to heat the rooms and don't require DHW for an extended period, select the operating program "Standby mode" (see page 16).

■ Do not set the DHW cylinder temperature B too high (see page 29).

■ Only activate the DHW circulation pump for when DHW is drawn off regularly. Set the time program for this

(see page 34).

8

Energy saving tips

(cont.)

Information regarding heating systems with underfloor heating

Underfloor heating systems are slow, low temperature heating systems and only respond very slowly to short-term temperature changes.

■ Therefore, heating with the reduced room temperature at night and enabling of "Economy mode" during short absences do not result in significant energy savings.

■ As heat pumps are largely operated in conjunction with underfloor heating systems, no reduction of the room temperature is preset at the factory.

For additional energy saving functions of the heat pump control unit, please contact your heating contractor.

Further recommendations:

■ Correct ventilation.

Briefly open windows C fully and at the same time close thermostatic radiator valves D (if no domestic ventilation system is installed).

■ Close roller shutters (if installed) at dusk.

■ Set thermostatic valves D correctly.

■ Never cover radiators E or thermostatic valves D .

■ Controlled DHW consumption: A shower generally uses less energy than a bath.

Introductory information

9

Operation

Controls

You can change any settings on your heat pump centrally at the programming unit of the heat pump control unit.

If remote control units are installed in your rooms, you can also adjust the settings at the remote control units.

Pivoting up the top part of the control unit

Remote control operating instructions

D

C i

(

B A

Note

The top part of the control unit will latch in a specific position. You can change this position by pressing button C on the side.

A ON indicator " " (green)

B Fault indicator " « " (red)

C Button for changing the latching position

D Top part of the control unit with integrated programming unit

10

Operation

Controls

(cont.)

Programming unit

Flow temperature

Heating/cooling

DHW

Solar energy

Information

Select with

40°C i

(

Note

The programming unit can also be used in a wall mounting base near the boiler. This is available as an accessory. Ask your heating contractor about this.

This takes you to the previous step in the menu or cancels a setting that has been started.

Cursor keys

To scroll in the menu or set values.

"Help" menu

OK Confirms your selection or saves the setting.

Calls up the help text relevant to the selected menu point.

Calls up the "Extended menu".

This displays a short guide giving an explanation of the controls and information about heating circuit selection (see page 19).

Call up the short guide as follows:

■ Screensaver is active (see page 13):

Press .

■ You will be somewhere in the menu:

Keep pressing until the "Standard menu" appears (see page 12).

Call up the "Help" menu option.

Menu

You have two control levels available, the "Standard menu" and the "Extended menu".

11

Operation

Menu

(cont.)

Standard menu

Flow temperature

Heating/cooling

DHW

Solar energy

Information

Select with

40°C i

(

In the "Standard menu", you can adjust and scan the settings used most frequently :

■ Adjusting the room temperature

■ Selecting the operating program

■ Setting the comfort function "Party mode"

■ Selecting the energy saving function

"Economy mode"

■ Adjusting the DHW temperature

■ Starting once-only DHW heating

■ Scanning the solar yield

■ Scanning information

– Temperatures, e.g. outside or collector temperature

– Operating state of pumps, compressor and cooling function

– Seasonal performance factors

(SPF)

■ Selecting manual mode

■ Scanning information, warning and fault messages

The menu overview can be found on page 50.

You call up the "Standard menu" as follows:

■ Screensaver is active:

Press any key.

■ You will be somewhere in the menu:

Keep pressing until the "Standard menu" appears.

12

Operation

Menu

(cont.)

Extended menu

Menu

Heating/cooling

DHW

System

Information

Select with i

(

In the "Extended menu", you can adjust and scan the settings from the control unit's range of functions used less frequently , e.g. holiday program and time programs.

The menu overview can be found on page 51.

You call up the "Extended menu" as follows:

■ Screensaver is active:

Press any key and then .

■ You will be somewhere in the menu:

Press .

How to use the controls

The screensaver will be active if you have not adjusted any settings on the programming unit for a few minutes.

Press OK . This takes you to the "Standard menu" (see page 12).

13

Operation

How to use the controls

(cont.)

A

Flow temperature

Heating/cooling

DHW

Solar energy

Information

Select with

40 °C i

A Dialogue line

The selected menu option is highlighted white.

The dialogue line then shows the necessary instructions.

The following example shows the setting procedure with the various dialogue lines.

14

How to use the controls

(cont.)

Flow temperature

Heating/cooling

DHW

Solar energy

Information

Select with

40°C i

(

Heating circuit 1

Set room temp.

Heating program

Party mode

Economy mode

Select with

OK

OK

20°C

ß

(

Ú Ú

Ú

Select heating circ Ù HC2 Ú

Heating circuit 2

Was selected

Heating circuit 2

Set room temp.

Heating program

Party mode

Economy mode

Select with

Ù Ù

HC2

Ú

20°C

ß

(

OK

Set room temperature

20°C

HC1

Change with

Set room temperature

V or

( v

HC1

22°C

OK Accept with

Set room temperature

OK

22°C

Adopted

HC1

Heating circuit 1

Set room temp.

Heating program

Party mode

Economy mode

Select with

Ù HC1 Ú

ß

(

Operation

15

Start-up/shutdown

Starting the heat pump

Vorlauftemperatur

Heizung/Kühlung

Warmwasser

Solarenergie

Information

Wählen mit

40°C i

(

A

D C

B

A Cover flap

B ON/OFF switch " "

1. Switch ON the power supply, e.g. at a separate MCB/fuse or a main isolator.

2. If the control unit is closed, pivot the top of the control unit up (see page 10).

3. Open cover flap A to gain access to the ON/OFF switch.

C ON indicator " " (green)

D Fault indicator " « " (red)

4. Switch ON the system ON/OFF switch " " .

After a short time, the "Standard menu" is displayed (see page 12).

Your heat pump and, if installed, your remote control units are now ready to operate.

Stopping the heat pump

With frost protection monitoring

For every heating circuit, select the operating program "Standby mode" .

16

Start-up/shutdown

Stopping the heat pump

(cont.)

Standard menu

1.

"Heating" or "Heating/cooling"

2. Select a heating/cooling circuit or the separate cooling circuit (see page 19).

3.

"Heating program"

4.

"Standby mode"

■ No central heating.

■ No cooling.

■ No DHW heating.

■ Frost protection for your heat pump, the DHW cylinder and any heating water buffer cylinder that may be installed is active.

Note

At temperatures below

−

20 °C, the frost protection of the heat pump, the

DHW cylinder and the heating water buffer cylinder is only ensured if an instantaneous heating water heater is installed (on site).

Note

The circulation pumps are briefly started every 24 hours to prevent them from seizing up.

End operating program "Standby mode"

Select another operating program.

Standard menu

1.

"Heating" or "Heating/cooling"

2. Select a heating/cooling circuit or the separate cooling circuit (see page 19).

3.

"Heating program"

4.

"Only DHW" (no central heating or central cooling) or

"Heating and DHW" (central heating and DHW heating) or

"Heating/cooling and DHW" (central heating/cooling and DHW heating) or

"Cooling" (cooling via a separate cooling circuit and DHW heating)

Without frost protection monitoring (shutting down the system)

1. Switch the ON/OFF switch " "

OFF.

2. Isolate the heat pump from its main power supply, e.g. at a separate

MCB/fuse or a main isolator.

3. If outside temperatures of below

3 °C are expected, please take appropriate measures to protect the heat pump and the heating system from frost. If necessary, contact your heating contractor.

Note

After an extended shutdown, it may be necessary to reset the date and time

(see page 40).

17

Central heating/cooling

Central heating/cooling

Central heating

■ Central heating is only activated if the outside temperature falls below the heating limit. The heating limit can be set by your local heating contractor.

Cooling via a heating/cooling circuit

■ Cooling via the heating circuit, e.g. an underfloor heating system (see page 57) only occurs when the outside temperature has exceeded the cooling limit. The cooling limit can be set by your local heating contractor.

Cooling via a separate cooling circuit

■ Cooling with a separate cooling circuit, e.g. chilled ceiling or fan convector

(see page 57) occurs independently of the outside temperature. The cooling capacity is automatically regulated so that the selected set room temperature is achieved (room temperaturedependent cooling operation, see page 58).

This enables a separate cooling circuit to provide cooling all year round, e.g.

for a storage room.

Note

No time program can be set for the separate cooling circuit.

Cooling functions

Subject to the accessories installed, the heat pump supports the natural cooling and active cooling functions.

■ In natural cooling mode, the lower temperatures underground are transferred directly to the heating circuit or the separate cooling circuit. This function is very efficient as it only requires the operation of the circulation pumps.

■ If the natural cooling capacity is insufficient and the required accessories are installed, the control unit can automatically switch to the active cooling mode. The heat pump will start in addition to the circulation pumps resulting in higher electricity costs. For this reason, the active cooling function must be enabled once separately (see page 24).

18

Central heating/cooling

Required settings (heating/cooling)

If you want central heating or central cooling, check the following points:

■ Have you selected the heating or cooling circuit?

For settings, see chapter "Selecting the heating/cooling circuit or a separate cooling circuit".

■ Have you set the required room temperature?

For settings, see page 20.

■ Have you set the correct operating program?

For settings, see page 21.

■ Have you set the required time program?

For settings, see page 21.

Selecting the heating/cooling circuit

Central heating can be split over several heating circuits (heating circuit 1, 2 or 3).

Cooling results either through one of these heating circuits or via a separate cooling circuit.

For all settings relating to central heating/cooling, first select the heating/cooling circuit or the separate cooling circuit to which your changes should apply.

Example:

■ "Heating circuit 1" is the heating circuit for the rooms occupied by you.

■ "Heating circuit 2" is the heating circuit for the rooms of a separate apartment.

■ "Cooling circuit SKK" represents a fan convector in a storage room.

Heating circuit 1

Set room temp.

Heating program

Party mode

Economy mode

Select with

Ù

21°C

ß

(

Ú

Ú

Select heating circ

Heating circuit 2

Was selected

Ù Ú

At the factory, the heating/cooling circuits are designated "Heating circuit

1" ( HC1 ), "Heating circuit 2" ( HC2 ),

"Heating circuit 3" ( HC3 ) and the separate cooling circuit with "Cooling circuit SKK" ( SKK ).

These factory-set designations can be changed (see page 39). In place of, for example "Cooling circuit SKK" , the modified designation "Storage" will be displayed.

19

Central heating/cooling

Selecting the heating/cooling circuit

(cont.)

Note

The abbreviated designations "HC1",

"HC2", "HC3" and "SKK" cannot be modified.

Setting the room temperature

Setting the room temperature for standard heating or cooling mode

Factory setting: 20 °C

Standard menu

1.

"Heating" or "Heating/cooling"

2. Where appropriate, select a heating/ cooling circuit or separate cooling circuit.

3.

"Set room temp"

4. Set the required value.

Setting the room temperature for reduced heating mode (night setback)

Factory setting: 16 °C

Extended menu

1.

2.

"Heating" or "Heating/cooling"

3. Where appropriate, select the heating/cooling circuit.

4.

"Set red. room temp."

5. Set the required value.

The room will be heated to this temperature if:

■ The operating status "Reduc." has been activated in the time program

(see page 23).

■ The holiday program has been started

(see page 27).

Enabling electric heater for central heating

If the heat pump alone cannot achieve the selected set room temperature, an

(on-site) instantaneous heating water heater can be started automatically to boost central heating.

The constant use of an instantaneous heating water heater results in higher power consumption, which therefore requires it to be enabled.

Extended menu

1.

2.

"System"

3.

"Heating with electro"

Note

Using the same menu sequence, you can stop the instantaneous heating water heater from boosting central heating at any time.

20

Central heating/cooling

Setting the heating/cooling operating program

Factory setting: "Heating and DHW" or

"Heating/cooling and DHW"

Standard menu

1.

"Heating" or "Heating/cooling"

2. Select a heating/cooling circuit or the separate cooling circuit.

3.

"Heating program"

4.

"Heating and DHW" , "Heating/cooling and DHW" or "Cooling"

■ The rooms of the selected heating/ cooling circuit are heated or cooled in accordance with the parameters for room temperature and time program.

■ A separate cooling circuit is constantly cooled.

■ DHW is heated in accordance with the parameters for the DHW temperature and time program.

Setting the time program for heating/cooling

Note

No time program can be set for any separate cooling circuit.

■ The time program for central heating/ cooling is made up of time phases. Set an operating status for each time phase ( "Reduc." , "Normal" , "Fixed val." , see page 23).

At the factory, central heating is set to operate 24/7 ( one time phase from

0:00 to 24:00 h for every day of the week with the operating status "Normal" ). This setting is suitable for operation with underfloor heating systems

(see page 9).

■ You can select up to 8 time phases.

Set the start and end points for each time phase. Rooms are neither heated nor cooled between these time phases; only frost protection is active.

■ You can set the time program individually .

When making adjustments, bear in mind that your heat pump requires some time to heat or cool the rooms to the required temperature.

■ In the "Advanced menu", you can scan the current time program under "Information" (page 42).

Settings in the extended menu:

1.

2.

"Heating" or "Heating/cooling"

3. Where appropriate, select the heating/cooling circuit.

4.

"Heating time program" or

"Time prog htg cool."

5. Select the part of the week or day.

6. Select a time phase !

to ( . The selected time phase is illustrated by a white bar inside the time diagram.

21

Central heating/cooling

Setting the time program for heating/cooling

(cont.)

7. Set the start and end points for the relevant time phase. The length of the white bar inside the time diagram is matched accordingly (see the following example).

8. Select the required operating status.

The individual operating status is displayed by bars of different heights inside the time diagram (see the following example).

Note

Where several time phases overlap, the operating status with the highest bar takes priority.

Example:

■ Time program for Monday to Sunday

( "Mo-Su" )

■ Time phase !

:

0:00 to 8:30 h: "Reduc."

■ Time phase ?

:

8:30 to 12:10 h: "Normal"

■ Time phase § :

13:00 to 18:30 h: "Reduc."

■ Time phase $ :

20:00 to 22:00 h: "Fixed value"

■ Time phase % :

22:00 to 24:00 h: "Reduc."

!

?

§

Heating/cooling Mo-Su

$ %

HC1

Note

There will be no central heating/cooling between the time phases; only frost protection monitoring.

Example:

You want to set the same time program for every day except Monday:

Select the period "Monday–Sunday" and set the time program.

Then select "Monday" and set the time program for this.

Note

If you want to terminate the setting process prematurely, keep pressing until the required display appears.

Deleting a time phase

■ Set the time for the end point to the same time that was set for the start point.

or

■ For the start time, select a time prior to

00:00 h.

The display shows the selected time phase " - - : - ".

HC1

0 2 4 6 8 10 12 14 16 18 20 22 24

?

- -:- - - -:- u

---

§ - -:- - - - -:- u

Change with

---

(

0 2 4 6 8 10 12 14 16 18 20 22 24

!

00:00 - 08:30 u

Reduc.

?

08:30 - 12:10 u

Select with

Normal

(

Heating/cooling Mo-Su

22

Central heating/cooling

Setting the time program for heating/cooling

(cont.)

Operating status for heating/cooling

The different operating statuses indicate how the central heating/cooling is implemented via a heating/cooling circuit.

"Normal"

Central heating/cooling is implemented with the standard room temperature (see page 20). The flow temperature is automatically matched to the outside temperature.

"Reduc."

Central heating is implemented with the reduced room temperature (see page 20). The flow temperature is automatically matched to the outside temperature.

Note

In the "Reduc." operating status, a cooling operation via a heating/cooling circuit is not possible.

"Fixed val."

Central heating is implemented, independently of the outside temperature, with the maximum permissible flow temperature; cooling with the minimum flow temperature.

Factory settings:

■ Max. flow temperature for heating: 60 °C

■ Min. flow temperature for cooling:

10 °C

Your heating contractor may have adjusted these values.

Changing the heating curve

The heating characteristics of your system are affected by the slope and the level of the selected heating curve . Further information about the heating curve can be found under "Terminology" on page 54.

Note

No heating curve is stored if room temperature-dependent control was installed for the selected heating/cooling circuit. Your local heating contractor will be able to provide you with further information in this connection.

Factory settings:

■ Slope: 0.6

■ Heating curve level: 0

■ Standard room temperature (set value): 20 ºC

■ Reduced room temperature (set value): 16 ºC

Extended menu:

1.

2.

"Heating" or "Heating/cooling"

3. Select the heating circuit, if necessary.

4.

"Heating curve"

23

Central heating/cooling

Changing the heating curve

(cont.)

5.

"Slope" or "Level"

Note

Tips on when and how you change the heating curve slope and level are displayed by pressing ?.

6. Set the required value.

Example:

Changing the heating curve slope to

1.1.

A diagram shows the change in the heating curve as soon as you alter the value for the slope or level.

Depending on various outside temperatures (shown on the horizontal axis), the assigned set flow temperatures for the heating circuit are highlighted white.

Note

Setting the slope or level of the heating curve too high or too low will not result in damage to your heat pump or your heating system.

Heating curve

100 °C

HC1

20 10

35 °C

0

Slope

Change with

43 °C

-10

49 °C

-20

55 °C

(

-30

1.1

Enabling and disabling the active cooling mode

If the natural cooling capacity is insufficient, the heat pump control unit can start active cooling for cooling via a heating circuit or a separate cooling circuit.

For this, the heat pump requires electrical energy (see page 18). To prevent this from being activated without your agreement, the cooling function has to be enabled once .

Extended menu

1.

2.

"Heating/cooling"

24

3. Where appropriate, select the heating/cooling circuit.

4.

"Active cooling mode"

Note

Using the same menu sequence, you can disable the active cooling mode at any time.

Stopping the central heating/cooling

Standard menu

1.

"Heating" or "Heating/cooling"

2. Where appropriate, select a heating/ cooling circuit or the separate cooling circuit.

3.

"Heating program"

4.

"Only DHW" (no central heating/cooling, only frost protection monitoring) or

"Standby mode" (no central heating/ cooling, only frost protection monitoring)

Central heating/cooling

25

Comfort and energy saving functions

Selecting party mode

With this comfort function, you can change the room temperature of a heating/cooling circuit for a few hours, e.g. if guests stay a little longer in the evening.

You do not have to change any existing control settings.

■ The rooms are heated or cooled to the required temperature.

■ DHW is heated to the set standard

DHW temperature. The DHW circulation pump is switched on.

■ If your heating contractor has not set up anything different, initially the DHW is heated to the selected set temperature, before central heating/cooling commences.

Standard menu

1.

"Heating" or "Heating/cooling"

2. Where appropriate, select the heating/cooling circuit.

3.

"Party mode"

Heating circuit 1

Set room temp.

Heating program

Party mode

Economy mode

Select with

20 °C

Ù

HC1

ON

Þ

Ú

4. Set the required room temperature for party mode.

Party mode

(

HC1

Change with

Ending the party mode

(

■ Automatically after 8 hours or

■ Automatically when the system switches to standard heating/cooling mode in accordance with the time program or

■ Set "Party mode" to "OFF" .

26

Selecting economy mode

To save energy, you can reduce the room temperature in standard heating mode, for example, if you leave the house for a few hours.

Note

Cooling via a heating circuit stops in economy mode.

Standard menu

1.

"Heating" or "Heating/cooling"

2. Where appropriate, select the heating/cooling circuit.

3.

"Economy mode"

Heating circuit 1

Set room temp.

Heating program

Party mode

Economy mode

Select with

Ù

HC1

Ú

ON

â

(

Comfort and energy saving functions

Ending economy mode

■ Automatically when the system switches to "Reduc." operating status in accordance with the time program, or

■ Set "Economy mode" to "OFF" .

Selecting the holiday program

To save energy, for example over long holidays, you can enable the holiday program.

The heat pump control unit is set up so that the holiday program applies to all heating circuits.

Depending on the operating program selected (see page 21), the holiday program may have different effects:

■ Heating program "Heating and

DHW" or "Heating/cooling and

DHW" :

– The rooms are heated to the specified reduced room temperature (see page 20).

– Cooling via one heating circuit has been switched OFF ; a separate cooling circuit continues to be cooled.

– DHW heating is switched OFF; the frost protection monitoring for the

DHW cylinder is active.

27

Comfort and energy saving functions

Selecting the holiday program

(cont.)

■ Heating program "Only DHW" :

Only frost protection for the heat pump, DHW cylinder and heating water buffer cylinder (if installed) is enabled for all heating circuits.

Extended menu:

1.

2.

"Heating" or "Heating/cooling"

3.

"Holiday program"

Holiday program

Leaving date:

Date

Return date:

Date

Change with

HC1

Tu 24.02.2009

We 25.02.2009

(

4. Set the required departure and return dates.

Cancelling or deleting the holiday program

Extended menu

1.

2.

"Heating"

3.

"Holiday program"

4.

"Delete program"

28

DHW heating

Required settings (DHW heating)

If you want DHW heating, check the following points:

■ Have you set the required DHW temperature?

For settings, see page 29.

■ Have you set the correct operating program?

For settings, see page 30.

■ Have you set the required time program?

For settings, see page 31.

Setting the DHW temperatures

Standard DHW temperature

Standard menu

1.

"DHW"

2.

"Set DHW temp"

3. Set the required value.

Setting a second DHW temperature

You can specify a second temperature

(Set temperature 2) for DHW heating.

■ By selecting the operating status

"Temp. 2" in the DHW time program, you can heat the DHW to that set value

(see page 31).

■ The "Set temperature 2" is the set value for heating the DHW once (see page 33) and for the manual operation (see page 45).

Extended menu

1.

2.

"DHW"

3.

"Set temperature 2"

4. Set the required value.

Enabling electric heater for DHW heating

If the heat pump cannot achieve the selected DHW temperature, an instantaneous heating water heater (on site) can be started automatically to boost DHW heating.

The constant use of an instantaneous heating water heater results in higher power consumption, which therefore requires it to be enabled.

29

DHW heating

Enabling electric heater for DHW heating

(cont.)

Extended menu

1.

2.

"DHW"

3.

"DHW with e heating"

Note

Using the same menu sequence, you can stop the instantaneous heating water heater from boosting DHW heating at any time.

Setting the operating program for DHW heating

Standard menu

1.

"Heating" or "Heating/cooling"

2. Where appropriate, select the heating/cooling circuit.

3.

"Heating program"

4.

"Heating and DHW" (with central heating) or

"Heating/cooling and DHW" (with central heating/cooling) or

"Cooling" (with cooling via a separate cooling circuit) or

"Only DHW" (without central heating/ cooling)

30

DHW heating

Setting the time program for DHW heating

■ The time program for DHW heating is made up of time phases. Set an operating status for each time phase

( "Top" , "Normal" , "Temp. 2" , see page 32).

At the factory, DHW heating is set to operate 24/7 ( one time phase from

0:00 to 24:00 h for every day of the week with the operating status "Top" ).

■ You can select up to 8 time phases.

Set the start and end points for each time phase. Between these time phases, no DHW is heated; only the frost protection for the DHW cylinder is active.

■ You can set the time program individually .

When setting time programs, note that your heat pump requires some time to heat the DHW cylinder to the required temperature. Accordingly, set the start and end times correspondingly earlier or use the functions "Start optimisation" (see page 33) and "Stop optimisation" (see page 33).

■ In the "Advanced menu", you can scan the current time program under "Information" (see page 42).

Settings in the extended menu:

1.

2.

"DHW"

3.

"DHW time prog"

4. Select the part of the week or day.

5. Select a time phase !

to ( . The selected time phase is illustrated by a white bar inside the time diagram.

6. Set the start and end points for the relevant time phase. The length of the white bar inside the time diagram is matched accordingly (see the following example).

7. Select the required operating status.

The individual operating status is displayed by bars of different heights inside the time diagram (see the following example).

Note

Where several time phases overlap, the operating status with the highest bar takes priority.

Example:

■ Time program for Monday ( "Mo" )

■ Time phase !

:

5:30 to 8:00 h: "Normal"

■ Time phase ?

:

8:00 to 14:00 h: "Top"

■ Time phase § :

16:30 to 17:30 h: "Temp. 2."

■ Time phase $ :

17:30 to 22:00 h: "Normal"

31

DHW heating

Setting the time program for DHW heating

(cont.)

!

?

Time prog. DHW

§ $

Mo

The display shows the selected time phase " - - : - ".

Time prog. DHW Mo-Su

0 2 4 6 8 10 12 14 16 18 20 22 24

!

05:30 - 08:00 u

Normal

?

08:00 - 14:00 u

Select with

Top

(

0 2 4 6 8 10 12 14 16 18 20 22 24

?

- -:- - - - -:- u

---

§ - -:- - - - -:- u

Change with

---

(

Note

There will be no DHW heating between the time phases; only frost protection for the DHW cylinder.

Example:

You want to set the same time program for every day except Monday:

Select the period "Monday–Sunday" and set the time program.

Then select "Monday" and set the time program for this.

Note

If you want to terminate the setting process prematurely, keep pressing until the required display appears.

Deleting a time phase

■ Set the time for the end point to the same time that was set for the start point.

or

■ For the start time, select a time prior to

00:00 h.

Operating status for heating the DHW cylinder

The different operating statuses indicate how the DHW cylinder heating is implemented.

"Normal"

The entire volume of the DHW cylinder is heated to the standard DHW temperature (see page 29).

"Top"

The upper section of the DHW cylinder

(approx. 50 l) is heated to the standard

DHW temperature (see page 29), e.g. in case of low DHW demand.

"Temp. 2"

The entire volume of the DHW cylinder is heated to the second set temperature

(see page 29), e.g. to kill off bacteria.

32

DHW heating

Setting the time program for DHW heating

(cont.)

Start optimisation

Start optimisation ensures that DHW is available at the required temperature at the beginning of a time phase.

Note

This function is only active if a time program has been set.

Extended menu:

1.

2.

"DHW"

3.

"Start optimisation"

Example:

From 06:00 h you require hot water for showering.

You set the start of the time phase to 6 o'clock. With the start optimisation, DHW heating automatically starts a little earlier, so that hot water is available at the required temperature at 6 o'clock.

Stop optimisation

The stop optimisation ensures that the

DHW cylinder is always fully heated at the end of the time phase with the operating status "Normal" .

Note

This function is only active if a time program has been set.

Extended menu:

1.

2.

"DHW"

3.

"Stop optimisation"

DHW heating outside the time program

You can start DHW heating immediately either with the "DHW heating once only" or with the "Comfort function"

("Party mode") independently of the time program.

DHW heating once only

DHW is heated once to the "Set temperature 2" (see page 29).

Standard menu

1.

"DHW"

2.

"1 x DHW heating"

Note

Heating DHW once only terminates automatically when the "Set temperature

2" has been reached.

DHW heating with the comfort function ("Party mode")

The DHW cylinder will be heated to the standard DHW temperature if the comfort function ("Party mode") has been started (see page 26).

33

DHW heating

Setting the time program for DHW heating

(cont.)

Standard menu

1.

"Heating" or "Heating/cooling"

2. Where appropriate, select the heating/cooling circuit.

3.

"Party mode"

Setting the time program for DHW circulation pump

Further information about the DHW circulation pump can be found under "Terminology" on page 59.

■ The time program for the DHW circulation pump is made up of time phases. Set an operating status for each time phase ( "5/25 cyc." , "5/10 cyc." ,

"ON" , see page 35).

At the factory, no time phases for the

DHW circulation pump are set, i.e. the

DHW circulation pump is switched off.

■ You can select up to 8 time phases.

Set the start and end points for each time phase. The DHW circulation pump remains off in between time phases.

■ In the "Advanced menu", you can scan the current time program under "Information" (see page 42).

Note

Also, enabling the DHW circulation pump is only advisable for those times when DHW is actually drawn.

Settings in the extended menu:

1.

2.

"DHW"

3.

"DHW circ time prog"

4. Select the part of the week or day.

5. Select a time phase !

to ( . The selected time phase is illustrated by a white bar inside the time diagram.

34

6. Set the start and end points for the relevant time phase. The length of the white bar inside the time diagram is matched accordingly (see the following example).

7. Select the required operating status.

The individual operating status is displayed by bars of different heights inside the time diagram (see the following example).

Note

Where several time phases overlap, the operating status with the highest bar takes priority.

Example:

■ Time program for Monday ( "Mo-Su" )

■ Time phase !

:

6:00 to 9:00 h: "ON"

■ Time phase ?

:

11:00 to 13:00 h: "5/10 cyc."

■ Time phase § :

18:00 to 22:30 h: "5/25 cyc."

DHW heating

Setting the time program for DHW circulation…

(cont.)

!

?

§

Time prog. DHW circulat. Mo-Su

The display shows the selected time phase " - - : - ".

Time prog. DHW circulat. Mo-Su

0 2 4 6 8 10 12 14 16 18 20 22 24

!

06:00 - 09:00 u

ON

?

11:00 - 13:00

Continue u

5/10 cyc.

OK

0 2 4 6 8 10 12 14 16 18 20 22 24

?

- -:- - - -:- u

---

§ - -:- - - - -:- -

Change with u

---

(

Note

The DHW circulation pump remains off in between time phases.

Example:

You want to set the same time program for every day except Monday:

Select the period "Monday–Sunday" and set the time program.

Then select "Monday" and set the time program for this.

Note

If you want to terminate the setting process prematurely, keep pressing until the required display appears.

Deleting a time phase

■ Set the time for the end point to the same time that was set for the start point, or

■ For the start time, select a time prior to

00:00 h.

Operating status for DHW circulation pump

The different operating statuses indicate when the DHW circulation pump runs.

"5/25 cyc."

The DHW circulation pump starts twice per hour for 5 min (pause duration 25 min).

"5/10 cyc."

The DHW circulation pump starts four times per hour for 5 min (pause duration

10 min).

"ON"

The DHW circulation pump runs constantly.

35

DHW heating

Switching off DHW heating

You do not want to either heat DHW nor heat or cool your rooms.

Standard menu

1.

"Heating" or "Heating/cooling"

2. Where appropriate, select a heating/ cooling circuit or the separate cooling circuit.

3.

"Heating program"

4.

"Standby mode" (frost protection monitoring)

5. Repeat steps 1 to 4 for all heating/ cooling circuits and the separate cooling circuit.

You do not want to heat DHW, but you do want to heat or cool the rooms.

Standard menu

1.

"Heating" or "Heating/cooling"

2. Where appropriate, select a heating/ cooling circuit or the separate cooling circuit.

3.

"Heating program"

4.

"Heating and DHW" (central heating and DHW heating) or

"Heating/cooling and DHW" (central heating/cooling and DHW heating) or

"Cooling" (cooling via a separate cooling circuit).

5.

to the "standard menu".

6.

"DHW"

7.

"Set DHW temperature"

8. Set 10 °C.

36

Heating water buffer cylinder

Setting a time program for the heating water buffer cylinder

■ The time program for the heating water buffer cylinder is made up of time phases. Set an operating status for each time phase ( "Top" , "Normal" , "Fixed val." , see page 38).

At the factory, heating water buffer cylinder is set to the operating status

"Normal" 24/7 ( one time phase from

0:00 to 24:00 h for every day of the week).

■ You can select up to 8 time phases.

Set the start and end points for each time phase. Between these time phases, the heating water buffer cylinder is not heated; only the frost protection for the heating water buffer cylinder is active.

■ You can set the time program individually .

When setting time programs, note that your heat pump requires some time to heat the heating water buffer cylinder to the required temperature.

■ In the "Advanced menu", you can scan the current time program under "Information" (see page 42).

Settings in the extended menu:

1.

2.

"System"

3.

"Buffer cyl time program"

4. Select the part of the week or day.

5. Select a time phase !

to ( . The selected time phase is illustrated by a white bar inside the time diagram.

6. Set the start and end points for the relevant time phase. The length of the white bar inside the time diagram is matched accordingly (see the following example).

7. Select the required operating status.

The individual operating status is displayed by bars of different heights inside the time diagram (see the following example).

Note

Where several time phases overlap, the operating status with the highest bar takes priority.

Example:

■ Time program for Monday ( "Mo-Su" )

■ Time phase !

:

6:00 to 9:00 h: "Normal"

■ Time phase ?

:

10:00 to 17:00 h: "Top"

■ Time phase § :

17:00 to 22:00 h: "Fixed value"

!

?

Time prog. buffer cyl.

§

Mo-Su

0 2 4 6 8 10 12 14 16 18 20 22 24

?

10:00 - 17:00 u

§ 17:00 - 22:00

Select with u

Top

Fixed value

(

Note

There will be no heating of the heating water buffer cylinder between the time phases; only frost protection monitoring.

37

Heating water buffer cylinder

Setting a time program for the heating water…

(cont.)

Example:

You want to set the same time program for every day except Monday:

Select the period "Monday–Sunday" and set the time program.

Then select "Monday" and set the time program for this.

Note

If you want to terminate the setting process prematurely, keep pressing until the required display appears.

Deleting a time phase

■ Set the time for the end point to the same time that was set for the start point, or

■ For the start time, select a time prior to

00:00 h.

The display shows the selected time phase " - - : - ".

Time prog. buffer cyl.

Mo-Su

0 2 4 6 8 10 12 14 16 18 20 22 24

?

- -:- - - -:- u

§ - -:- - - - -:- u

Change with

---

---

(

Operating status for the heating water buffer cylinder

The different operating statuses indicate how the heating water buffer cylinder heating is implemented.

"Normal"

The entire volume of the heating water buffer cylinder is heated to the highest set flow temperature for all connected heating circuits.

The set flow temperature of a heating circuit results from the heating curve, the outside temperature and the required room temperature.

"Top"

The top section of the heating water buffer cylinder is heated to the highest set flow temperature for all connected heating circuits. A smaller volume of heating water is then available.

"Fixed val."

The entire volume of the heating water buffer cylinder is heated to a fixed temperature set by your heating contractor.

You can use this operating status, for example to heat up the heating water buffer cylinder with economical night tariff power.

Note

Above a certain outside temperature, the heating water buffer cylinder will also no longer be heated in the operating status

"Fixed val.". The stopping limit can be adjusted by your local heating contractor.

38

Further adjustments

Setting the display brightness

If you would like the texts in the menu to be more clearly legible, change the brightness for "Control" .

You can also alter the screensaver brightness.

Extended menu

1.

2.

"Settings"

3.

"Brightness"

4.

"Control" or "Screensaver"

5. Set the required brightness.

Setting the display contrast

Extended menu

1.

2.

"Settings"

3.

"Contrast"

4. Set the required contrast.

Entering designations for the heating circuits

You can designate all heating/cooling circuits and the separate cooling circuit individually. The abbreviations "HC1" ,

"HC2" , "HC3" and "SKK" will be retained.

Extended menu

1.

2.

"Settings"

3.

"Heating circuit designation"

4.

"Heating circuit 1" , "Heating circuit

2" , "Heating circuit 3" or "Cooling circuit SKK"

5. You can select the required character using " ( " .

6.

" Ø " takes you to the next character.

7. Press OK to accept all selected characters at once and simultaneously exit this menu.

Example:

Designation for Heating circuit 2: Apartment

Heating circuit 2 f g e d c

Change with

HC2

(

39

Further adjustments

Entering designations for the heating circuits

(cont.)

Heating circuit 2 HC2

The menu shows "Apartment" for Heating circuit 2.

Apartment

Adopted

Set room temp.

Heating program

Party mode

Economy mode

Select with

Ù

HC2

Ú

22 °C

ß

(

Setting the time and date

The time and date are factory-set. If your heat pump has been shut down for a long time, it may be necessary to set the time and date.

Extended menu

1.

2.

"Settings"

3.

"Time / Date"

4. Set the time and date.

Language selection

Extended menu

1.

2.

"Settings"

3.

"Language"

4. Select the required language.

Selecting a temperature unit (°C/°F)

Factory setting: °C

Extended menu

1.

2.

"Settings"

40

3.

"Temperature unit"

4. Select "Degrees Celsius °C" or

"Degrees Fahrenheit °F" .

Further adjustments

Restoring factory settings

You can restore all modified factory settings for each heating or cooling circuit, the DHW heating and other system settings separately.

System settings

Extended menu

1.

2.

"Settings"

3.

"Standard setting"

4.

"System"

The following settings are reset:

■ Language (will only become effective after the heat pump has been switched

OFF and ON again)

DHW heating

Extended menu

1.

2.

"Settings"

3.

"Standard setting"

4.

"DHW"

The following settings and values are reset:

■ Standard set DHW temperature

■ Set temperature 2

■ Time program for DHW heating

■ Time program for DHW circulation pump

■ Instantaneous heating water heater is enabled for DHW heating

■ Start and stop optimisation are switched OFF

Electric heater

Extended menu

1.

2.

"Settings"

3.

"Standard setting"

4.

"Electric heater"

The following settings are reset:

■ Instantaneous heating water heater is enabled for central heating

Heating/cooling circuits

Extended menu

1.

2.

"Settings"

3.

"Standard setting"

4.

"Heating circuit 1" , "Heating circuit

2" or "Heating circuit 3"

The following settings and values are reset:

■ Standard room temperature

■ Reduced room temperature

■ Time program for central heating/cooling

■ Comfort function temperature ("Party mode")

■ Holiday program is deleted

■ Heating curve slope and level

Cooling

Extended menu

1.

2.

"Settings"

3.

"Standard setting"

4.

"Cooling"

The following values are reset:

■ Standard room temperature for the separate cooling circuit

41

Scanning

Scanning information

Subject to the connected components and settings made, you can scan current temperatures and settings, time programs and operating states.

You can scan information in the "Standard menu" and in the "Extended menu".

Standard menu

1.

"Information"

2. Select the required scan.

All information is listed in the menu overview (see page 50).

Note

Information relative to the heating/ cooling circuits about the current operating program and the current operating status set via the time program is then displayed.

The designation is displayed if heating/cooling circuits have been designated (see page 39).

Extended menu

This menu divides the information into categories. All information regarding these individual categories are shown in the menu overview (see page 51).

■ "System"

■ "Heating circuit 1"

■ "Heating circuit 2"

■ "Heating circuit 3"

■ "Cooling circuit SKK"

■ "DHW"

■ "Solar"

■ "Heat pump"

■ "Daily log" (see page 42)

Note

The designation is displayed if heating/ cooling circuits have been designated

(see page 39).

Extended menu

1.

2.

"Information"

3. Select the group.

4. Select the required scan.

Scanning in conjunction with solar thermal systems

Standard menu

"Solar energy"

The solar energy yield for the past 7 days is displayed in a diagram.

The flashing line in the diagram indicates that the current day is not yet complete.

Solar energy

4.0

0

We Th Fr Sa Su Mo Tu We kWh We 18.02.09

Select with

1.3

Note

Further information regarding the solar circuit, e.g. for the current collector temperature, can be found under "Informa-

tion" in the "Solar" category.

Daily log

The daily log lists the following information for each calendar week ("calendar week") in tabular form "CW" :

42

Scanning

Scanning information

(cont.)

■ "T.in" : Average brine temperature on entry into the heat pump

■ "T.out" : Average brine temperature on exiting the heat pump

■ "HP1" : Hours run, heat pump stage one

■ "HP2" : Hours run, heat pump stage two

■ "AC" : Hours run, active cooling

■ "NC" : Hours run, natural cooling

Note

This information will be retained even if the heat pump control unit develops a fault.

Daily log

CW T.in T.out HP1 HP2 AC NC

12

13

14 7.5

4.5

15

16

17

18

7.2

7.8

7.0

6.9

6.8

7.2

4.3

4.7

3.3

3.1

3.0

4.4

123

113

103

93

97

89

133

37

21

15

9

10

28

45

0

0

4

0

0

2

0

15

12

18

10

11

12

5

Select with

Extended menu

1.

2.

"Information"

3.

"Daily log"

(

Scanning messages

In case of special events or operating states in connection with your heat pump or heating system, the heat pump control unit displays information, warning or fault messages.

Apart from a plain text message, e.g.

"Warning" the associated symbol flashes on the display.

Note

Warning

Fault: The (red) fault indicator on the control unit also flashes (see page 10).

1. Pressing OK provides you with additional information regarding the displayed message.

Note

Outside temp sensor

Power-OFF

Acknowledge with OK

18

C5

2. You can scroll through the list of messages. In conjunction with each message, the header shows whether it is an information, warning or fault message.

43

Scanning

Scanning messages

(cont.)

Pressing ?

provides you with the following information regarding the selected message:

■ Date and time when the message occurred for the first time.

■ Note about the heat pump characteristics and those of the heating system.

■ Tips on which steps you can take yourself before notifying your heating contractor.

3. Make a note of the message text and the message code to the right of it. In this example: "Outside temp sensor

18" and "Power-OFF C5" (see page 48).

This enables the heating contractor to be better prepared for the service call and may save additional travelling costs.

4. If you want to acknowledge all messages, follow the instructions in the menu. If you do not want to acknowledge the messages, press ä .

The entry "Note" , "Warning" or

"Fault" will be adopted into the

"Standard menu" as well as into the

"Extended menu" as the first entry.

Note

■ If you have connected up signalling equipment (e.g. an alarm) for fault messages, this is deactivated when the fault message is acknowledged.

■ If the fault can only be rectified at a later date, the fault message is displayed again the next day and the signalling equipment (if installed) is switched on again.

■ If you acknowledge the fault message

"Heat pump A9", central and DHW heating will be provided by the instantaneous heating water heater (on site) alone. As this is associated with high electricity costs, we recommend having the heat pump checked by your local heating contractor as quickly as possible.

Calling up acknowledged messages

1. Call up the "Standard menu" or the

"Extended menu".

2. Select "Note" , "Warning" or

"Fault" .

Flow temperature

Fault

Heating/cooling

DHW

Solar energy

Continue with

Note "Power-OFF C5"

40 °C

OK

This is not a fault (see page 48).

44

Manual mode

In manual mode, central heating and

DHW heating are implemented independently of the time programs:

■ Unregulated heating with a set flow temperature of 45 °C.

■ DHW heating with "Set temperature

2" (see page 29).

■ No cooling.

Note

Use the manual mode only after checking with your local heating contractor.

1. Call up the "Standard menu".

2. Select "Manual mode" .

Manual mode

45

What to do if...

Rooms are too cold

Cause

The heat pump is switched OFF.

Heat pump control unit or remote control incorrectly adjusted.

DHW cylinder is being heated.

"Note" played.

, "Warning" or "Fault" is dis-

Remedy

■ Switch the ON/OFF switch " " ON

(see figure on page 10).

■ Switch ON the mains isolator, if installed (outside the boiler room).

■ Reset the MCB in the power distribution board (main domestic MCB).

Check and correct settings if required:

■ "Heating and DHW" or

"Heating/cooling and DHW" must be set up (see page 21).

■ Room temperature (see page 20).

■ Time (see page 40).

■ Time program central heating/cooling

(see page 21).

■ Time program heating water buffer cylinder (see page 37).

Wait until the DHW cylinder has been heated up.

If necessary, reduce the amount of hot water being drawn.

Scan the type of fault and acknowledge it

(see page 44). If necessary, notify your heating contractor.

Rooms are too hot

Cause

Heat pump control unit or remote control is incorrectly adjusted.

"Note" played.

, "Warning" or "Fault" is dis-

Remedy

Check and correct settings if required:

■ Room temperature (see page 20).

■ Time (see page 40).

■ Time program central heating/cooling

(see page 21).

■ Time program heating water buffer cylinder (see page 37).

Scan the type of fault and acknowledge it

(see page 44). If necessary, notify your heating contractor.

46

What to do if...

There is no hot water

Cause

The heat pump is OFF.

Heat pump control unit or remote control incorrectly adjusted.

"Note" played.

, "Warning" or "Fault" is dis-

Remedy

■ Switch the ON/OFF switch " " (see page 10) ON.

■ Switch ON the mains isolator, if installed (outside the boiler room).

■ Reset the MCB in the power distribution board (main domestic MCB).

Check and correct settings if required:

■ DHW heating must be enabled (see page 30).

■ DHW temperature (see page 29).

■ Time program DHW heating (see page 31).

■ Time (see page 40).

Scan the type of fault and acknowledge it

(see page 44). If necessary, notify your heating contractor.

" " flashes and "Note" is displayed

Cause

Reference to a special event or operating state of the heat pump or heating system.

Remedy

Proceed as described on page 43.

" " flashes and "Warning" is displayed

Cause

Warning in connection with a special event or operating state of the heat pump or heating system.

Remedy

Proceed as described on page 43.

" " flashes and "Fault" is displayed

Cause

Heat pump or heating system fault.

Remedy

Proceed as described on page 43.

47

What to do if...

"Power-OFF C5" is displayed

Cause

This message is displayed whilst the power supply is blocked by the power supply utility.

Remedy

No measures required.

The heat pump restarts automatically in accordance with the selected operating program as soon as the power supply utility restores the power supply.

"External program" is displayed

Cause

The operating program set at the heat pump control unit was changed over by the Vitocom 100 communication interface.

Remedy

You can change the heating program.

Follow the instructions in the menu.

48

Maintenance

Servicing

Cleaning

All equipment can be cleaned with a commercially available domestic cleaning agent (non-scouring).

Inspection and maintenance

The inspection and maintenance of a heating system is specified by the Energy Saving Order [EnEV - Germany] and the DIN 4755, DIN 1988-8 and EN 806 standards.

Regular maintenance ensures trouble-free, energy-efficient and environmentally responsible heating. For this, we strongly advise you to arrange an inspection and maintenance contract with your local heating contractor.

DHW cylinder

The DIN 1988-8 and EN 806 specify that maintenance and cleaning should be carried out no later than two years after commissioning and thereafter as required.

Only a qualified heating contractor should clean the inside of a DHW cylinder and the DHW connections.

Refill any water treatment equipment

(e.g. a lock or injection system) in good time, if such equipment is installed in the cold water supply of the DHW cylinder.

In this connection, observe the manufacturer's instructions.

We recommend that the correct function of the sacrificial anode is checked annually by your heating contractor.

The anode function can be checked without interrupting the system operation.

The heating contractor will check the earth current with an anode tester.

Safety valve (DHW cylinder)

The safety valve function should be checked every six months by venting, either by the system user or the local heating contractor. The valve seat may become contaminated (see the valve manufacturer's instructions).

Potable water filter (if installed)

To maintain high hygienic standards, proceed as follows:

■ Replace filter element on non-back flushing filters every six months (visual inspection every two months).

■ On back flushing filters, back flush every two months.

49

Appendix

Menu overview

Standard menu

(see page 12)

Standard menu

Fault

Warning

Note

Heating

Heating/cooling

HC1/2/3 or

SKK

Set room temp

Operating program

Party mode

Economy mode

DHW

Set DHW temp

1x DHW heating

Heating and DHW

Heating/cooling and DHW

Cooling

Only DHW

Standby mode

Solar energy

Help

Manual mode

Information

Outside temp

Compressor

Heating circuit 1 HC1

Act room temp HC1

Heating circ pump HC1

Heating circuit 2 HC2

Act room temp HC2

Actual flow temp HC2

Heating circ pump HC2

Heating circuit 3 HC3

Act room temp HC3

Actual flow temp HC3

Heating circ pump HC3

Act room temp SKK

Actual flow temp cool.

Natural cooling

Active cooling

DHW

DHW temperature

Cylinder primary pump

DHW circulation

Collector temp

Set DHW temperature

SPF heating

SPF DHW

SPF overall

50

Appendix

Menu overview

(cont.)

Extended menu

(Press (see page 13)

Extended menu

Fault

Warning

Note

Heating

Heating/cooling System Settings

HC1/2/3 or

SKK

DHW Information

Set room temperature

Set red. room temp

Operating program

Party mode

Economy mode

Heating time program

Time prog htg cool.

Holiday program

Heating curve slope

Active cooling mode

Set

DHW temperature

1x DHW heating

Time prog. DHW

DHW circ time prog

DHW with e heating

Start optimisation

Stop optimisation

Set temperature 2

Buffer cyl time program

Heating with electro

Heating and DHW

Heating/cooling and DHW

Cooling

Only DHW

Standby mode

A

Time / Date

Language

Contrast

Brightness

Temperature unit

Heating circuit designation

Standard setting

System

DHW

Electric heater

Heating circuit 1

Heating circuit 2

Heating circuit 3

Cooling

Control

Screen saver

A Continued in the following diagram

51

Appendix

Menu overview

(cont.)

Extended menu

Fault

Warning

Note

Heating

Heating/cooling

DHW

Outside temp

Mixed flow temp

Operating status system

Heating season

Cooling period

Buffer cylinder

Operating status buffer cyl.

Buffer cyl. time prog

External heat source

Central fault

Op. status swimming pool

Subscriber no.

Ext. hook-up 0..10V

Time

Date

Building drying days

Operating program

Time prog htg cool.

Set room temp

Act room temp

Set red. room temp

Heating curve

Heating circuit pump

Holiday program

Mixer

Flow temperature

Active cooling

Natural cooling

System

System

Heating circuit 1

Heating circuit 2

Heating circuit 3

Cooling circuit SKK

DHW

Solar

Heat pump

Daily log

Compressor

Primary source

Secondary pump

Valve heating/DHW

Compr. hours run

Compressor starts

Inst.water htr.st.1

Inst.water htr.st.1

Inst.water htr.st.2

Inst.water htr.st.2

SPF heating

SPF DHW

SPF overall

Collector temp

Solar DHW

Solar energy

Collector circuit pump

Reheat suppression

A Continuation of previous diagram

Information

A

Settings

Operating program

Set room temp

Act room temp

Flow temperature

Active cooling

Natural cooling

Operating program

DHW time prog

DHW circ time prog

DHW

Cylinder prim pump

DHW circ pump

1x DHW heating

Cylinder reheating

Cylinder reheating

52

Appendix

Terminology

Setback mode (reduced heating mode)

See "Reduced heating mode".

Standby mode

Central heating/cooling and DHW heating are switched OFF, but frost protection monitoring is still active.

Active cooling mode

In active cooling mode, the temperature of the heat transfer medium cooled underground is reduced even further before it is transferred to the heating/ cooling circuits. As a result, the cooling capacity available is significantly higher compared to natural cooling (see page 57). The electricity demand is comparatively high as the heat pump is operated in addition to the circulation pumps.

Heating program

With the heating program you determine whether you heat/cool your rooms and heat DHW or only heat DHW. Frost protection monitoring remains active if you shut down the heat pump via the heating program.

You can select the following heating programs:

■ "Heating and DHW" or

"Heating/cooling and DHW"

Rooms are heated or cooled; DHW is heated.

■ "Cooling"

The separate cooling circuit is cooled;

DHW is heated.

■ "Only DHW"

DHW is heated but central heating is not active.

■ "Standby mode"

Frost protection for the heat pump, the

DHW cylinder and heating water buffer cylinder (accessory) is active; no central heating/cooling, no DHW heating.

Note

No heating program is available for central heating without DHW heating. If you require central heating, hot water is generally also required.

However, if you just want central heating, select the operating program "Heating

and DHW" or "Heating/cooling and

DHW" and set the DHW temperature to

10 °C (see page 36). This means that you will not heat DHW unnecessarily but the DHW cylinder is protected against frost.

Operating status

The operating status indicates in what way a function or component is operated.

53

Appendix

Terminology

(cont.)

For central heating the operating statuses are differentiated, for example, by different temperature levels. In addition, the operating statuses for DHW heating take into account what temperature sensors are used to regulate the cylinder temperature. For example, this enables

DHW cylinders to be heated completely or only in their upper section.

For pumps, the operating status can specify whether constant running or running for a specific period is required.

The times for the operating status changeover are defined when the time programs are set.

Extension kit for heating circuit with mixer

Assembly (accessory) for controlling a heating circuit with mixer.

See "Mixer".

Heating/cooling curve

Heating and cooling curves illustrate the relationship between the outside temperature, room temperature (set value) and the (heating circuit) flow temperature.

Heating curve:

■ The lower the outside temperature, the higher the flow temperature in the heating circuit.

Cooling curve:

■ The higher the outside temperature, the lower the flow temperature in the cooling circuit.

In order to guarantee sufficient heat at any outside temperature, the conditions of your building and your heating system must be taken into consideration. For this you can adapt the heating curve (see page 23).

The cooling curve can be set by your local heating contractor.

Example:

The illustrated heating curves apply subject to the following settings:

■ Heating curve level = 0

■ Standard room temperature (set value) = 20 ºC

54

Appendix

Terminology

(cont.)

Slope

35

60

50

40

30

90

80

70

20

15

10

10

5

0

For outside temperature − 14 °C :

A Underfloor heating, slope 0.2 to 0.8

B Low temperature heating, slope 0.8 to 1.6

Factory-set, the slope = 0.6 and the level

= 0.

-10 -20 -30

-14

Outside temperature in °C

0.6

0.4

0.2

1.2

1.0

0.8

B

A

55

Appendix

Terminology

(cont.)

110

3.5

1.4

A

B

35

Flow temperature in °C

C

Outside temperature in °C

0.2

-20

5

A Changing the slope:

The steepness of the heating curves changes.

B Changing the level:

The heating curves are shifted parallel in a vertical direction.

C Changing the standard room temperature (set value):

The heating curves are offset along the axis "Set room temperature".

56

Appendix

Terminology

(cont.)

Heating/cooling circuits and separate cooling circuit

■ Heating circuit

A heating circuit is a sealed circuit between the heat pump and consumers (radiators), in which the heating water circulates.

A heating system may have several heating circuits, e.g. one heating circuit for the rooms occupied by you and one heating circuit for the rooms of a separate apartment.

■ Cooling circuit

When cooling via a heating circuit, e.g.

underfloor heating system, we refer to a cooling circuit.

■ Separate cooling circuit

A separate cooling circuit is a sealed circuit that supplies a cooling appliance such as, for example, a fan convector or a chilled ceiling. Heating is not possible with a separate cooling circuit.

Heating circ pump

Circulation pump for the circulation of the heating water in the heating/cooling circuit.

Heating water buffer cylinder

Thermal energy for central heating can be stored in a heating water buffer cylinder. This safeguards the heat supply for all connected heating circuits even when the heat pump is not operational for longer periods, e.g. during a power-OFF period.

Actual temperature

Current temperature at the time of the scan, e.g. actual DHW temperature.

Mixer

A mixer mixes the heated heating water with the cooled water returning from the heating circuit. The water heated to the right temperature in line with demand is delivered into the heating circuit by the heating circuit pump. The heat pump control unit adjusts the heating circuit flow temperature via the mixer to the various conditions, e.g. different outside temperature.

When cooling via a heating circuit, e.g.

underfloor heating system, the mixer serves to maintain the temperature above the condensation point of the ambient air (dew point). This prevents the formation of condensate.

Natural cooling

With this function, the temperature level of the ground is transferred directly to the heating/cooling circuits. Compared to active cooling mode (see page 53), the available cooling capacity is lower in natural cooling mode. As the heat pump is off, this function is very energy-efficient and therefore suitable for permanent cooling.

Standard heating/cooling mode

When you are in the house during the day, you can heat or cool the rooms in standard heating or cooling mode. Set the periods (time phases) using the time program for central heating/cooling.

57

Appendix

Terminology

(cont.)

Standard room temperature

Set the standard room temperature when you are in the house during the day

(see page 20).

Room temperature-dependent heating or cooling mode

With room temperature-dependent operation a room will be heated or cooled until the selected set room temperature has been reached. For this, a separate temperature sensor must be installed in a room.

The heating output or cooling capacity are regulated independently of the outside temperature.

Reduced heating mode

When you are out or during the night, you can heat the rooms with the reduced room temperature (setback mode). Set the time periods using the time program for heating/cooling. With underfloor heating systems, energy savings are insignificant in reduced heating mode

(see page 9).

In reduced mode, cooling is disabled.

Reduced room temperature

When you are out or during the night, set a reduced room temperature (see page 20). See also "Reduced heating mode".

Safety valve

Safety device that must be installed by your heating contractor in the cold water pipe. The safety valve opens automatically to prevent excess pressure in the

DHW cylinder.

The heating circuits and the solar circuit are also equipped with safety valves.

Secondary pump

The secondary pump transports the heating water from the heat pump into the heating system and, in heating systems with heating water buffer cylinder, initially into the buffer cylinder.

Solar circuit pump

In conjunction with solar thermal systems.

The solar circuit pump transports the cooled heat transfer medium from the

DHW cylinder indirect coil to the collectors.

Set temperature

Default temperature that should be reached by heating or cooling, e.g. set

DHW temperature.

Cylinder primary pump

Circulation pump for heating the DHW in the DHW cylinder.

58

Terminology

(cont.)

Potable water filter

Device that removes solids from the water. The potable water filter is installed in the cold water pipe upstream of the

DHW cylinder or the instantaneous water heater.

Compressor

Central assembly of a heat pump. The compressor raises the refrigerant to the temperature level required for the heating operation.

Weather-compensated heating or cooling mode

In weather-compensated mode, the flow temperature is controlled subject to the outside temperature. This means that no unnecessary heat or cooling capacity is generated to heat or cool the rooms to the set room temperature you selected.

The outside temperature is captured and transferred to the heat pump control unit by a sensor fitted outside the building.

DHW circulation pump

The DHW circulation pump transfers the hot water in a circular line between the

DHW cylinder and the draw-off points

(e.g. hot water tap). This makes hot water available quickly at the draw-off point.

Appendix

59

Keyword index

Keyword index

A

Active cooling...............................18, 53

■ Disabling.........................................24

■ Enabling..........................................24

Active cooling mode...........................53

Actual temperature.............................57

Average brine temperature................43

B

Brine temperature..............................43

C

Central cooling

■ Heating program.............................21

■ Required settings............................19

■ Start................................................19

■ Without DHW heating.....................36

Central heating 18

■ Factory settings................................7

■ Heating program.............................21

■ Required settings............................19

■ Room temperature..........................20

■ Start................................................19

■ Stopping.........................................25

■ Time program.................................21

■ With electric heater.........................20

■ Without DHW heating.....................36

Changeover

■ Winter/summertime..........................7

Changing heating characteristics.......23

Circulation pump 8

■ Factory setting..................................7

Cleaning.............................................49

Cold rooms.........................................46

Comfort function party mode..............26

Commissioning................................6, 7

Compressor.......................................59

Controls..............................................10

Control system...................................13

Cooling

■ Disabling.........................................24

■ Enabling..........................................24

■ Factory settings................................7

■ Via a separate cooling circuit..........18

■ Via the heating/cooling circuit.........18

Cooling capacity.................................18

Cooling circuit....................................57

Cooling curve.....................................54

Cooling function

■ Natural cooling................................57

Cooling functions...............................18

Cooling limit.......................................18

Cooling mode

■ Active cooling.................................53

■ Operating status.............................23

■ Standard...................................20, 57

Cursor keys........................................11

Cylinder primary pump.......................58

D

Daily log.............................................42

Date...............................................7, 17

Deleting a time phase......22, 32, 35, 38

Designating heating circuits...............39

DHW circulation pump 59

■ Factory settings..............................34

■ Operating status.............................35

■ Time program.................................34

DHW consumption...............................9

DHW cylinder, operating status.........32

DHW demand, low.............................32

DHW heating 7, 29, 36

■ Factory setting..................................7

■ Heating program.............................30

■ In party mode..................................33

■ Once only.......................................33

■ Outside the time program...............33

■ Set DHW temperature 2.................29

■ Setting the temperature..................29

■ Standard DHW temperature...........29

■ Time program.................................31

■ With an electric heater....................29

60

Keyword index

Keyword index

(cont.)

DHW heating once only.....................33

DHW pasteurisation...........................32

DHW temperature..........................8, 29

Dialogue line......................................13

Disabling

■ Active cooling mode.......................24

Display

■ Setting the brightness.....................39

■ Setting the contrast.........................39

E

Economy mode..............................8, 27

Enable

■ Instantaneous heating water heater.............................................20

Enabling

■ Active cooling mode.......................24

■ Instantaneous heating water heater.............................................29

Energy saving

■ Tips...................................................8

Energy saving function.......................27

■ Economy mode...............................27

■ Holiday program.......................27, 28

Energy saving tips................................8

Extended menu

■ Control............................................13

■ Menu structure................................51

■ Scanning information......................42

Extension kit.......................................54

External operating program...............48

F

Fault ã ..............................................47

Fault message

■ Acknowledge..................................43

■ Scan...............................................43

Fault messages

■ Calling up........................................44

Filter for potable water.......................59

Frost protection 22

■ Factory setting..................................7

Frost protection monitoring....16, 25, 36

G

Glossary.............................................53

H

Heating and DHW................................7

Heating circ pump..............................57

Heating circuit....................................57

Heating circuit designation.................39

Heating circuit designations...............39

Heating circuit selection.....................11

Heating circuit with mixer...................54

Heating curve 54

■ Changing........................................23

■ Level...............................................23

■ Setting............................................23

■ Slope..............................................23

Heating curve level......................23, 54

Heating curve slope.....................23, 54

Heating limit.......................................18

Heating mode

■ Operating status.............................23

■ Reduced.........................................58

■ Standard...................................20, 57

Heating operation

■ Reduced.........................................20

Heating program 53

■ Cooling...........................................53

■ DHW...............................................53

■ DHW heating..................................30

■ For central cooling..........................21

■ For central heating..........................21

■ Heating, cooling and DHW.............53

■ Heating and DHW...........................53

■ Standby mode..........................17, 53

Heating water buffer cylinder.........7, 57

■ Operating status.............................38

■ Time phases...................................37

■ Time program.................................37

Help....................................................11

Help text.............................................11

Holiday program.............................8, 27

■ Enable............................................27

■ Terminating.....................................28

61

Keyword index

Keyword index

(cont.)

Hot rooms..........................................46

Hours run...........................................43

How to use the controls.....................13

I

Information

■ Scanning.........................................42

■ Solar thermal system......................42

Inspection...........................................49

Instantaneous heating water heater...17

■ For central heating..........................20

■ For DHW heating............................29

K

Keys...................................................11

Killing off bacteria...............................32

L

Language selection............................40

Low DHW demand.............................32

M

Main isolator.......................................17

Maintenance......................................49

Maintenance contract.........................49

Manual mode.....................................45

Max. flow temperature for heating.....23

Menu

■ Extended menu..............................13

■ Help................................................11

■ Standard menu...............................12

■ Structure.........................................50

■ Where to find the controls...............11

Menu structure

■ Extended menu..............................51

Message

■ Fault ã ...........................................43

■ Note................................................43

■ Power-OFF C5.........................44, 48

■ Warning..........................................43

Min. flow temperature for cooling.......23

Mixer..................................................57

Mounting base...................................11

62

N

Natural cooling.............................18, 57

No hot water.......................................47

Note 47

■ Acknowledge..................................43

■ Calling up........................................44

■ Power-OFF C5.........................44, 48

■ Scan...............................................43

O

ON/OFF switch..................................17

Operating status...........................23, 53

■ 5/10 cyc..........................................35

■ 5/25 cyc..........................................35

■ DHW circulation pump....................35

■ DHW cylinder..................................32

■ DHW heating..................................31

■ Fixed val...................................23, 38

■ Heating water buffer cylinder..........38

■ Normal................................23, 32, 38

■ ON..................................................35

■ Reduc.............................................23

■ Temp. 2..........................................32

■ Top...........................................32, 38

Operation sequence...........................13

P

Party mode.........................................26

Pivoting up the top part of the control unit.....................................................10

Potable water filter.............................59

Power failure........................................7

Power-OFF C5.............................44, 48

Power-OFF time...........................44, 48

Power supply.....................................16

Power supply blocked........................44

Power supply utility......................44, 48

Keyword index

Keyword index

(cont.)

Programming unit...................10, 11, 13

Pump

■ Cylinder heating..............................58

■ DHW...............................................58

■ DHW circulation..............................59

■ Heating circuit.................................57

■ Secondary circuit............................58

■ Solar circuit.....................................58

R

Reduced heating mode......................58

Reduced room temperature.........20, 58

Remote control...................................10

Removing faults.................................46

Reset..................................................41

Reset electric heater settings

■ Electric heater.................................41

Resetting the system settings............41

Restoring factory settings..................41

Restoring the settings

■ Cooling...........................................41

■ DHW...............................................41

■ Heating circuit.................................41

■ System............................................41

Rooms too cold..................................46

Rooms too hot....................................46

Room temperature

■ Factory settings..............................20

■ For reduced heating mode.............20

■ For standard heating/cooling mode 20

■ Reduced.........................................58

■ Setting............................................20

■ Standard.........................................58

Room temperature-dependent control................................................23

Room temperature-dependent cooling mode..................................................18

Room temperature-dependent operation............................................58

S

Safety valve.......................................58

Saving energy....................................27

Scan

■ Information......................................42

■ Notes, warning and fault messages.......................................43

■ Operating states.............................42

■ Solar thermal system......................42

■ Temperatures.................................42

Scanning messages...........................43

Scanning operating states.................42

Scanning solar energy.......................42

Scanning temperatures......................42

Screensaver.................................11, 13

Secondary pump................................58

Selecting the cooling circuit...............19

Selecting the heating circuit...............19

Separate cooling circuit......................57

Service...............................................49

Servicing............................................49

Setback mode....................................53

Set room temperature........................20

Set temperature.................................58

Settings

■ Central cooling................................19

■ Central heating...............................19

■ Date and time.................................40

■ DHW heating..................................29

■ Language........................................40

■ Temperature unit............................40

Setting the brightness........................39

Setting the contrast............................39

Setting the date..................................40

Setting the DHW temperature............29

Setting the time..................................40

Shutdown

■ Heat pump......................................16

Shutting down

■ Heat pump......................................17

Shutting down the heat pump............16

Shutting down the system..................17

Solar circuit pump..............................58

Solar thermal system

■ Scanning information......................42

Standard cooling mode................20, 57

63

Keyword index

Keyword index

(cont.)

Standard DHW temperature..............29

Standard heating mode......7, 20, 57, 58

Standard menu 13

■ Control............................................12

■ Instructions.....................................13

■ Menu structure................................50

■ Scanning information......................42

■ Standard menu...............................50

Standard room temperature...........7, 20

Standard settings...............................41

Standby mode........8, 16, 17, 25, 36, 53

Starting

■ Central cooling................................19

■ Central heating...............................19

■ DHW heating..................................29

■ Frost protection monitoring.............16

■ Heat pump......................................16

■ Standby mode................................16

Start optimisation.........................31, 33

Stop optimisation.........................31, 33

Stopping

■ Central heating...............................25

■ DHW heating..................................36

■ Economy mode...............................27

■ Holiday program.............................28

Summertime changeover.....................7

Switching off

■ Comfort function.............................26

Switching on

■ Comfort function.............................26

T

Temperature

■ Actual temperature.........................57

■ DHW...............................................29

■ DHW temperature 2........................29

■ Setting............................................20

■ Set value.........................................58

Temperature unit................................40

Terminating

■ DHW heating..................................36

■ Economy mode...............................27

Terminology.......................................53

Time 17

■ Factory setting..................................7

Time phase

■ DHW circulation pump....................34

Time phases

■ Central heating...............................21

■ DHW heating..................................31

■ Heating water buffer cylinder..........37

Time program

■ Central heating...............................21

■ DHW circulation pump....................34

■ DHW heating..................................31

■ Heating water buffer cylinder..........37

V

Ventilation............................................9

W

Wall mounting base...........................11

Warning message

■ Acknowledge..................................43

■ Calling up........................................44

■ Scan...............................................43

Water too cold....................................47

Weather-compensated operation.......59

Where to find the controls..................10

Winter/summertime changeover..........7

Wintertime changeover........................7

64

65

66

67

Your contact

Contact your local contractor if you have any questions regarding the maintenance and repair of your system. You may, for example, find local contractors on the internet under www.viessmann.com.

Viessmann Werke GmbH&Co KG

D-35107 Allendorf

Telephone: +49 6452 70-0

Fax: +49 6452 70-2780 www.viessmann.com

Viessmann Limited

Hortonwood 30, Telford

Shropshire, TF1 7YP, GB

Telephone: +44 1952 675000

Fax: +44 1952 675040

E-mail: [email protected]

68