Viessmann VITODENS Bedienungsanleitung

Operating instructions

for the system user

VIESMANN

Heating system with Vitotronic 100 control unit, type HC2A

for constant temperature operation

VITODENS

5592 646 GB 1/2010 Please keep safe.

Please follow these safety instructions closely to prevent accidents and mate-

rial 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 envi-

ronmental pollution.

Note

Details identified by the word "Note" con-

tain additional information.

Target group

These operating instructions are for the

heating system user.

This unit is not designed to be used by

persons (including children) with limited

bodily, sensory or mental capacities, or

lacking experience and/or lacking knowl-

edge, 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 unit.

!Please note

Children should be supervised.

Ensure that children do not play

with the unit.

Danger

Incorrectly executed work on the

heating system can lead to life-

threatening accidents.

■ Work on gas appliances must

only be carried out by a regis-

tered gas fitter.

■ Work on electrical equipment

must only be carried out by a

qualified electrician.

If you smell gas

Danger

Escaping gas can lead to explo-

sions which may result in serious

injury.

■ Do not smoke. Prevent naked

flames and sparks. Never

switch lights or electrical appli-

ances ON or OFF.

■ Close the gas shut-off valve.

■ Open windows and doors.

■ Remove all people from the

danger zone.

■ Notify your gas or electricity

supplier and your heating con-

tractor from outside the build-

ing.

■ Shut off the electricity supply to

the building from a safe place

(outside the building).

Safety instructions

For your safety

5592 646 GB

If you smell flue gas

Danger

Flue gas can lead to life-threat-

ening poisoning.

■ Shut down the heating system.

■ Ventilate the boiler room.

■ Close all doors in the living

space.

In case of fire

Danger

Fire creates the risk of burning

and explosions.

■ Shut down the heating system.

■ Close the shut-off valves of the

fuel lines.

■ Use a tested fire extinguisher,

class ABC.

Boiler room requirements

!Please note

Incorrect ambient conditions can

lead to damage to the heating

system and put the safe opera-

tion at risk.

■ Ensure ambient temperatures

above 0 ºC and below 35 ºC.

■ Prevent air contamination by

halogenated hydrocarbons

(e.g. as contained in paints,

solvents or cleaning fluids) and

excessive dust (e.g. through

grinding/polishing work).

■ Avoid continuously high humid-

ity levels (e.g. through frequent

drying of washing).

■ Never close existing ventilation

apertures.

Ancillary components, spare and

wearing parts

!Please note

Components that are not tested

with the heating system may lead

to damage to the heating system,

or may affect their various func-

tions.

Installation or replacement work

must only be carried out by quali-

fied personnel.

Safety instructions

For your safety (cont.)

5592 646 GB

Introductory information

Commissioning..................................................................................................... 6

Your system is preset at the factory..................................................................... 6

Terminology.......................................................................................................... 6

Tips on saving energy.......................................................................................... 7

Operation

Controls................................................................................................................ 8

How to operate..................................................................................................... 9

Symbols................................................................................................................ 9

Start-up/shutdown

Starting the heating system.................................................................................. 10

Shutting down the heating system....................................................................... 11

■ With frost protection monitoring........................................................................ 11

■ Without frost protection monitoring (shutdown)................................................ 11

Central heating

Required settings for central heating.................................................................... 12

Setting the heating flow temperature.................................................................... 12

Setting the heating program (central heating)...................................................... 12

Setting the time program for central heating........................................................ 13

Stopping the central heating................................................................................. 14

Central heating comfort function.......................................................................... 15

DHW heating

Required settings (DHW heating)......................................................................... 16

Setting the DHW temperature.............................................................................. 16

Setting the heating program (DHW heating)........................................................ 16

Setting the time program for DHW heating.......................................................... 17

Switching off DHW heating................................................................................... 18

DHW heating comfort function (if available)......................................................... 19

Further adjustments

Setting the time and date..................................................................................... 20

Setting the temperature unit (°C/°F)..................................................................... 20

Restoring factory settings..................................................................................... 21

Scanning

Scanning information............................................................................................ 22

Scanning the service messages........................................................................... 23

Scanning fault messages..................................................................................... 24

Index

5592 646 GB

Multi-boiler systems

Special considerations for multi-boiler systems................................................... 26

Emissions test mode......................................................................................... 27

What to do if...

Rooms are too cold.............................................................................................. 28

Rooms are too hot................................................................................................ 29

There is no hot water............................................................................................ 29

The DHW is too hot.............................................................................................. 30

"ã" flashes on the display .................................................................................. 30

"E" flashes on the display .................................................................................. 30

"ë" flashes on the display .................................................................................. 31

Maintenance

Servicing............................................................................................................... 32

■ Cleaning............................................................................................................ 32

■ Inspection and maintenance............................................................................. 32

Keyword index.................................................................................................... 35

Index

Index (cont.)

5592 646 GB

The commissioning and matching of the

control unit to local conditions and build-

ing characteristics, as well as instructing

the user in the operation of the system,

must be carried out by your heating con-

tractor.

As the operator of new combustion

equipment, you may be obliged to notify

your local flue gas inspector [check local

regulations]. Your local flue gas inspec-

tor will also inform you [where appropri-

ate] about work he may be required to

carry out on your combustion equipment

(e.g. regular checks, cleaning).

Your system is preset at the factory

The control unit is preset to " " at the

factory for central heating and DHW

heating.

Your heating system is therefore ready

for use:

Central heating

■ The rooms are heated in accordance

with the settings on your control unit

and room temperature control unit.

■ Your heating contractor can make fur-

ther settings for you during commis-

sioning.

You can change any settings individu-

ally at any time to suit your require-

ments (see chapter "Central heating").

DHW heating

■ The DHW is heated up to 50 °C.

■ Your heating contractor can make fur-

ther settings for you during commis-

sioning.

You can change any settings individu-

ally at any time to suit your require-

ments (see chapter "DHW heating").

Frost protection

■ Your boiler and DHW cylinder are pro-

tected against frost.

Power failure

■ All data is saved if there is a power

failure.

Terminology

To provide you with a better understand-

ing of the functions of your control unit,

the appendix contains the chapter "Ter-

minology" (see page 33).

Introductory information

Commissioning

5592 646 GB

Use the adjustment options on control

unit A and the room temperature con-

trol unit:

■ Never overheat your rooms. Every

degree by which the room temperature

is reduced saves up to 6% on heating

costs.

Never set your room temperature

higher than 20 °C (see page 12).

■ Never set the DHW temperature too

high (see page 16).

■ Select the heating program that meets

your current requirements:

– In the summer, if you do not want to

heat any rooms but require hot

water, select the " " heating pro-

gram (see page 16).

– If you do not want to heat any rooms

and require no hot water for a pro-

longed period of time, select the

" " heating program (see

page 11).

Further recommendations:

■ Correct ventilation/airing.

Briefly open windows B fully and at

the same time close the thermostatic

valves C.

■ Close roller shutters (if installed) at

dusk.

■Set thermostatic valves C correctly.

■Never cover radiators D or thermo-

static valves C.

■ Controlled DHW consumption: A

shower generally uses less energy

than a full bath.

Introductory information

Tips on saving energy

5592 646 GB

You can change the settings for your

heating system centrally at the program-

ming unit.

If you have a room temperature control

unit installed in your rooms, you can also

change the settings on the room temper-

ature control unit.

Room temperature control unit

operating instructions

Note

The programming unit can be placed in

a wall mounting base. This is available

as an accessory. Ask your heating con-

tractor about it.

4 8°C

s A

Takes you one step back in the

Cursor keys

To scroll in the menu or set values

OK Enables you to confirm your selec-

tions or setting

No function

Enables you to call up the menu for

settings and scanning

Operation

Controls

5592 646 GB

Standard display

æè

4 8°C

spA

Press . This takes you to the menu for

settings and scanning.

Symbols

These symbols are not always dis-

played, but appear subject to the system

version and the operating state. Flashing

displays indicate that modifications can

be made.

Central heating

DHW heating

Information

Emissions test mode

Additional settings

Setting the time or time program

Setting the date

Heating program

Frost protection (standby mode)

DHW heating

Central heating and DHW heat-

ing

Comfort mode for central heat-

ing

COMF Comfort mode for DHW heating

ECO Without comfort mode for DHW

heating

Messages

Service message

The service interval has expired

Fault message

Fault message for burner

Displays

Temperature

Monitoring frost protection

Central heating

Heating circuit pump running

Cylinder primary pump running

Burner running

Factory setting

Operation

How to operate

5592 646 GB

123

bar

C D

4 8°C

s A

AFault indicator (red)

BON indicator (green)

CReset button

DON/OFF switch

EPressure gauge

1. Check the heating system pressure

at the pressure gauge. The system

pressure is too low if the indicator

points to the area below 1.0 bar. In

this case, top up with water or notify

your local heating contractor.

2. For open flue operation:

Check that the ventilation apertures

of the installation room are open and

unrestricted.

Note

With open flue operation, the com-

bustion air is drawn from the installa-

tion room.

3. Open the gas shut-off valve.

Note

Ask your heating contractor to

explain the positioning and handling

of these components.

4. Switch ON the power supply, e.g. at

a separate MCB/fuse or a main iso-

lator.

5. Switch system ON/OFF switch " "

ON.

After a short while, the standard dis-

play appears and the green ON indi-

cator illuminates. Your heating sys-

tem and room temperature control

unit (if connected) are now ready for

operation.

Start-up/shutdown

Starting the heating system

5592 646 GB

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