Viessmann Vitodens 200-W System Service Instructions Manual

Add to my manuals
148 Pages

advertisement

Viessmann Vitodens 200-W System Service Instructions Manual | Manualzz

Service instructions

for contractors

Vitodens 200-W

Type WB2C, 45 and 60 kW

Wall mounted gas condensing boiler

Natural gas and LPG version

For applicability, see the last page

VITODENS 200-W

VIESMANN

5692 843 GB 1/2010

Please keep safe.

2

Safety instructions

Safety instructions

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 instructions are exclusively designed for qualified personnel.

■ Work on gas equipment must only be carried out by a qualified gas fitter.

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

■ The system must be commissioned by the system installer or a qualified person authorised by the installer.

Regulations

Observe the following when working on this system

■ all legal instructions regarding the prevention of accidents,

■ all legal instructions regarding environmental protection,

■ the Code of Practice of relevant trade associations,

■ all current safety regulations as defined by DIN, EN, DVGW, TRGI,

TRF, VDE and all locally applicable standards,

■ Gas Safety (Installation & Use) Regulations

– the appropriate Building Regulation either the Building regulations, the

Building Regulation (Scotland),

Building Regulations (Northern Ireland),

– the Water Fittings Regulation or

Water Bylaws in Scotland,

– the current I.E.E. Wiring Regulations.

If you smell gas

Danger

Escaping gas can lead to explosions which may result in serious injury.

■ Never smoke. Prevent naked flames and sparks. Never switch lights or electrical appliances 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 from outside the building.

■ Shut off the electricity supply to the building from a safe place

(outside the building).

Safety instructions

Safety instructions

(cont.)

If you smell flue gas

Danger

Flue gas can lead to life-threatening poisoning.

■ Shut down the heating system.

■ Ventilate the boiler room.

■ Close all doors leading to the living space.

Working on the system

■ When using gas as fuel, also close the main gas shut-off valve and safeguard against unauthorised reopening.

■ Isolate the system from the power supply and check that it is no longer 'live', e.g. by removing a separate fuse or by means of a main isolator.

■ Safeguard the system against unauthorised reconnection.

!

Please note

Electronic modules can be damaged by electro-static discharges.

Touch earthed objects, such as heating or water pipes, to discharge static loads.

Repair work

!

Please note

Repairing components which fulfil a safety function can compromise the safe operation of your heating system.

Replace faulty components only with original Viessmann spare parts.

Ancillary components, spare and wearing parts

!

Please note

Spare and wearing parts which have not been tested together with the heating system can compromise its function. Installing non-authorised components and non-approved modifications/conversion can compromise safety and may invalidate our warranty.

For replacements, use only original spare parts from Viessmann or those which are approved by

Viessmann.

3

Index

Index

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance..........................................

6

Further details regarding the individual steps.......................................................

8

Code 1

Calling up coding level 1...................................................................................... 41

General/Group "1"................................................................................................ 42

Boiler/Group "2".................................................................................................... 44

DHW/Group "3".................................................................................................... 45

Solar/Group "4".................................................................................................... 46

Heating circuit 1, heating circuit 2, heating circuit 3/Group "5"............................. 47

Code 2

Calling up coding level 2...................................................................................... 55

General/Group "1"................................................................................................ 56

Boiler/Group "2".................................................................................................... 65

DHW/Group "3".................................................................................................... 66

Solar/Group "4".................................................................................................... 69

Heating circuit 1, heating circuit 2, heating circuit 3/Group "5"............................. 76

Diagnosis and service scans

Calling up the service menu................................................................................. 86

Diagnosis.............................................................................................................. 86

Checking outputs (relay test)................................................................................ 92

Troubleshooting

Fault display......................................................................................................... 95

Fault codes........................................................................................................... 97

Repairs................................................................................................................. 109

Function description

Constant temperature control unit........................................................................ 117

Weather-compensated control unit...................................................................... 118

Internal extensions (accessories)......................................................................... 119

External extensions (accessories)........................................................................ 121

Control functions.................................................................................................. 125

Assigning the heating circuits to the remote control............................................. 132

Electronic combustion controller.......................................................................... 132

Designs

Connection and wiring diagram – internal connections ....................................... 134

Connection and wiring diagram – external connections....................................... 135

4

Index

Index

(cont.)

Parts lists............................................................................................................ 137

Commissioning/service reports

............................................................................................................................. 142

Specification....................................................................................................... 143

Certificates

Declaration of conformity...................................................................................... 144

Manufacturer's certificate according to the 1st BImSchV [Germany]................... 144

Keyword index.................................................................................................... 145

5

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance

For further information regarding the individual steps, see the page indicated

Commissioning steps

Inspection steps

Maintenance steps Page

• •

• • •

• • •

• •

• •

• •

• •

• • •

• •

• • •

1. Opening the boiler..........................................................

8

2. Filling the heating system..............................................

9

3. Venting the boiler by flushing....................................... 10

4. Selecting the language (if required) – only for

weather-compensated control units............................. 10

5. Setting the time and date (if required) – only for

weather-compensated control units............................. 10

6. Venting the heating system........................................... 11

7. Filling the siphon with water......................................... 11

8. Checking all connections on the heating water side and DHW side for leaks

9. Checking the power supply connection

10. Designating heating circuits – only for weather-

compensated control units............................................ 12

11. Checking the gas type.................................................... 12

12. Gas type conversion (only for operation with LPG).... 13

13. Function sequence and possible faults....................... 13

14. Checking the static and supply pressure..................... 15

15. Setting the maximum output......................................... 17

16. Checking the balanced flue system for tightness

(annular gap check)........................................................ 18

17. Removing the burner and checking the burner gasket 19

18. Checking the burner gauze assembly & replacing if

required........................................................................... 21

19. Checking and adjusting the ignition and ionisation

electrodes........................................................................ 22

20. Cleaning the combustion chamber/heat exchanger

and installing the burner................................................ 22

6

Commissioning, inspection, maintenance

Steps - commissioning, inspection and…

(cont.)

Commissioning steps

Inspection steps

Maintenance steps Page

• •

• •

• •

• • •

• • •

• • •

• • •

• • •

21. Checking the condensate drain and cleaning the

siphon.............................................................................. 24

22. Checking the neutralising system (if installed)

23. Checking the diaphragm expansion vessel and

system pressure............................................................. 24

24. Checking the function of safety valves

25. Checking electrical connections for tightness

26. Checking gas equipment for tightness at operating

pressure .......................................................................... 25

27. Flue gas emissions test................................................. 25

28. Checking the external LPG safety valve (if installed)

29. Matching the control unit to the heating system ........ 27

30. Adjusting the heating curves (only for weather-

compensated control units)........................................... 34

31. Connecting the control unit to the LON system (only

for weather-compensated control units)...................... 37

32. Scanning and resetting the "Service" display............. 39

33. Instructing the system user........................................... 40

7

Commissioning, inspection, maintenance

Further details regarding the individual steps

Opening the boiler

4.

3.

2.

1.

2x

8

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Filling the heating system

!

Please note

Unsuitable fill water increases the level of deposits and corrosion and may lead to boiler damage.

■ Thoroughly flush the entire heating system prior to filling it with water.

■ Only use fill water of potable quality.

■ Soften fill water with a water hardness in excess of the following values, e.g.

with a small softening system for heating water (see the Viessmann Vitoset pricelist):

– Vitodens 200-W to 45 kW: 16.8 °dH (3.0 mol/m 3 )

– Vitodens 200-W from 60 kW and multi-boiler systems: 11.2 °dH

(2.0 mol/m 3 )

■ An antifreeze additive suitable for heating systems can be added to the fill water. The antifreeze manufacturer must verify its suitability.

1. Check the pre-charge pressure of the diaphragm expansion vessel.

2. Close the gas shut-off valve.

3. Fill the heating system at the boiler drain & fill valve A (on the connection set, accessories or on-site). Minimum system pressure > 1.0 bar.

4. Close boiler drain & fill valve A.

A

9

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Venting the boiler by flushing

A

1. Close the shut-off valves on the heating water side.

2. Connect the drain hose at boiler drain

& fill valve B (on the connection set, accessories or on-site).

3. Open valves A and B and vent using mains pressure until no more air noise is audible.

4. Close valves A and B and open the heating water shut-off valves.

B

Selecting the language (if required) – only for weather-compensated control units

Note

At the commissioning stage, the display is in German (default setting)

Extended menu:

1. å

2. "Settings"

3. "Language"

Sprache

Deutsch

Cesky

Dansk

English

Wählen mit Ø

DE

CZ

DK

GB

ç

4. Set the required language with / .

Setting the time and date (if required) – only for weather-compensated control units

During commissioning, or after prolonged time out of use, the time and date need to be reset.

Extended menu:

1. å

2. "Settings"

10

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

3. "Time / Date"

Venting the heating system

1. Close the gas shut-off valve and switch the control unit ON.

2. Activate venting program (see next steps).

Note

For function and sequence of the

venting program, see page 127.

3. Check the system pressure.

Activating venting program with weather-compensated control units:

1. Press OK and å simultaneously for approx. 4 s.

2. "Service functions"

Filling the siphon with water

4. Set current time and date.

3. "Venting"

4. Terminating venting program:

Press OK or ä.

Activating venting program with constant temperature control units:

1. Press OK and å simultaneously for approx. 4 s.

2. Select Ú "5" and confirm with OK.

When the venting program is activated, "EL on" is shown on the display.

3. Terminating venting program:

Press ä.

1. Remove retaining clip A and pull out insert B.

2. Fill siphon C with water and reassemble.

Note

Install the supply hose the correct way round.

A B C

11

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Designating heating circuits – only for weather-compensated control units

In the delivered condition, the heating circuits are designated "Heating circuit

1", "Heating circuit 2" and "Heating circuit 3" (if installed).

If the system user prefers, the heating circuits can be designated differently to suit the specific system.

Checking the gas type

Enter names for heating circuits:

Operating instructions

The boiler is equipped with an electronic combustion controller that adjusts the burner for optimum combustion in accordance with the prevailing gas quality.

■ Consequently, for natural gas there is no adjustment required across the entire

Wobbe index range.

The boiler can be operated in the Wobbe index range 9.5 to 15.2 kWh/m

3

(34.2 to

54.7 MJ/m 3 ).

■ Convert the burner for operation with LPG (see "Gas type conversion" on

page 13).

1. Determine the gas type and Wobbe index by asking your local gas supply utility or LPG supplier.

2. Convert the burner for operation with

LPG (see page 13).

3. Record the gas type in the service

report on page 142.

12

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Gas type conversion (only for operation with LPG)

A

1. Set adjusting screw A at the gas train to "2".

2. Switch ON/OFF switch "8" ON.

Function sequence and possible faults

Control unit issues a heat demand yes

Fan starts no

Display no

After approx. 51 s fault F9

3. Select the gas type in coding address

"82":

■ Call up code 2.

■ Call up "General" (weather-compensated control units) or

Group "1" (constant temperature control units).

■ In coding address "11", select value "9".

■ In coding address "82", select value "1" (LPG operation).

■ In code "11" select value

≠ "9".

■ End service functions.

4. Open the gas shut-off valve.

5. Affix label "G 31" (included with the technical documentation) in a clearly visible position, near the gas train on the cap panel.

Measures

Increase set value and ensure heat is drawn off

Check the fan, fan connecting cables, power at the fan and fan control

13

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.) yes

Ignition no

Fault EE Check the ignition module (control voltage 230 V across plugs

"X2.1" and "X2.2") yes

Gas train opens no

Fault EE Check the gas train

(control voltage

230 V); check the gas supply pressure yes

Ionisation current builds

Symbol A no Fault EE Check the ionisation electrode adjustment and the gas line for airlocks yes

Burner in operation no Stops below the set boiler water temperature and restarts immediately

Check the flue gas system for tightness (flue gas recirculation), check the gas flow pressure

14

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.) yes

Automatic calibration of the combustion controller no Fault Eb Initiate a heat draw-off. Switch the boiler OFF and

ON again.

Press reset button

R.

For further fault details, see page 95.

Checking the static and supply pressure

Danger

CO build-up as a result of an incorrect burner setup can have serious health implications.

Carry out a CO test prior to and after work on gas equipment.

Operation with LPG

Flush the LPG tank twice during commissioning/replacement. Vent the tank and gas supply lines thoroughly after flushing.

1. Close the gas shut-off valve.

A

2. Release screw A inside test nipple

"PE" on the gas train, but do not remove it; then connect the pressure gauge.

3. Open the gas shut-off valve.

4. Measure the static pressure and record it in the service report on

page 142.

Set value: max. 57.5 mbar.

15

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

5. Start the boiler.

Note

During commissioning, the boiler can enter a fault state because of airlocks in the gas line. After approx. 5 s, press R to reset the burner.

6. Check the supply (flow) pressure. Set values:

■ Natural gas 20 mbar

■ LPG 50 mbar

Note

Use suitable test equipment with a resolution of at least 0.1 mbar to measure the supply pressure.

7. Record the actual value in the service report.

Take the action shown in the following table.

8. Shut down the boiler, close the gas shut-off valve, remove the pressure gauge and close test nipple A with the screw.

9. Danger

Gas escaping from the test nipple leads to a risk of explosions.

Check for tightness.

Open the gas shut-off valve, start the boiler and check for tightness at test nipple A.

16

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Supply (flow) pressure for natural gas

below 15 mbar

Supply (flow) pressure for LPG

15 to 25 mbar above 25 mbar

Measures

below 42.5 mbar Do not start the boiler. Notify your gas supply utility or LPG supplier.

42.5 to 57.5 mbar Start the boiler.

above 57.5 mbar Install a separate gas pressure governor upstream of the system and regulate the pre-charge pressure to 20 mbar for natural gas or 50 mbar for LPG. Notify your gas supply utility or LPG supplier.

Setting the maximum output

You can limit the maximum output for heating operation. The limit is set via the modulation range. The max. adjustable heating output is limited upwards by the boiler coding card.

Weather-compensated control unit:

1. Press OK and å simultaneously for approx. 4 s.

2. "Service functions"

3. "Max. output"

4. "Change?" Select "Yes".

A value flashes on the display (e.g.

"85"). In the delivered condition, this value represents 100 % of rated output.

5. Select required value.

Constant temperature control unit:

1. Press OK and å simultaneously for approx. 4 s.

2. Select Ú "3" and confirm with OK.

A value flashes on the display (e.g.

"85") and "A" appears. In the delivered condition, this value represents

100 % of rated output.

3. Select required value and confirm with OK.

17

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Checking the balanced flue system for tightness (annular gap check)

A

A Combustion air aperture

We recommend that your heating engineer carries out a simple leak/tightness test during the commissioning of your system. For this, it would be sufficient to check the CO

2

or O

2

concentration in the combustion air at the annular gap of the balanced flue pipe.

The flue pipe is deemed to be gas-tight if the CO

2

concentration in the combustion air is no higher than 0.2 % or the

O

2

concentration is at least 20.6 %.

If actual CO

2

values are higher or O

2

values are lower, then pressure test the flue pipe with a static pressure of 200 Pa.

For balanced flue systems tested together with the wall mounted gas fired boiler, the requirement for a tightness test during commissioning by the flue gas inspector is not applicable.

18

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Removing the burner and checking the burner gasket

L

K

G

F

D

B

H

E

C

A

19

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

1. Switch OFF the main power supply and the ON/OFF switch at the control unit.

2. Close the gas shut-off valve and safeguard against reopening.

3. Pivot control unit A forward.

4. Remove cover panel B.

5. Pull cables from fan motor C, gas train D, ignition unit E, earth tab

F and ionisation electrode G.

6. Release gas supply pipe fitting H.

7. Undo six screws K and remove the burner.

!

Please note

To prevent damage, never touch the mesh of the burner gauze assembly.

8. Check burner gasket L for damage and replace if required.

20

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Checking the burner gauze assembly & replacing if required

F E D

4x

C B

3x

A

1. Remove electrodes A.

2. Undo three retaining clips B at thermal insulation ring C and remove thermal insulation ring C.

3. Release four Torx screws D and remove burner gauze assembly E.

4. Remove old burner gauze assembly gasket F.

5. Insert a new burner gauze assembly with a new gasket and secure with four Torx screws.

Note

Torque: 4.5 Nm

6. Refit thermal insulation ring C and electrodes A.

21

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Checking and adjusting the ignition and ionisation electrodes

6 +2

0

+0,5 0

14

±1

A A B

A Ignition electrodes B Ionisation electrode

1. Check the electrodes for wear and contamination.

2. Clean the electrodes with a small brush (not with a wire brush) or sand paper.

!

Please note

Do not damage the wire gauze.

3. Check the electrode gaps. If the gaps are not as specified or the electrodes are damaged, replace the electrodes together with new gaskets and adjust them as required. Tighten the electrode fixing screws with 2 Nm.

Cleaning the combustion chamber/heat exchanger and installing the burner

!

Please note

Scratches on parts that are in contact with flue gas can lead to corrosion.

Never use brushes to clean the heat exchanger.

22

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

A

1. Use a vacuum cleaner to remove residues from heat exchanger A inside the combustion chamber.

23

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

2. If required, spray slightly acidic, chloride-free cleaning agents based on phosphoric acid (e.g. Antox 75 E) onto heat exchanger A and let the solution soak in for approx. 20 min.

3. Thoroughly flush heat exchanger A with water.

4. Install the burner and torque screws diagonally with 12 Nm.

6. Check the gas connections for tightness.

Danger

Escaping gas leads to a risk of explosion.

Check all fittings for gas tightness.

7. Connect the electrical cables/leads to each corresponding component.

5. Fit the gas supply pipe with a new gasket. Torque fittings with 15 Nm.

Checking the condensate drain and cleaning the siphon

A B C

1. Remove retaining clip A and pull out insert B.

2. Clean siphon C and check that the condensate can drain off freely.

3. Fill siphon C with water and reassemble.

Note

Never twist the supply hose during assembly.

Checking the diaphragm expansion vessel and system pressure

Note

Carry out this test on a cold system.

1. Drain the system or close the cap valve on the diaphragm expansion vessel and reduce the pressure until the pressure gauge indicates "0".

2. If the pre-charge pressure of the diaphragm expansion vessel is lower than the static system pressure, top up with nitrogen until the pre-charge pressure is raised by 0.1 to 0.2 bar.

24

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

3. Top up your heating system with water until the filling pressure of a cooled system is 0.1 to 0.2 bar higher than the pre-charge pressure of the diaphragm expansion vessel.

Permiss. operating pressure: 4 bar

Checking gas equipment for tightness at operating pressure

Danger

Escaping gas leads to a risk of explosion.

Check gas equipment for tightness.

Note

For the tightness test, use only suitable and approved leak detecting agents (EN

14291) and devices. Leak detecting agents with unsuitable constituents (e.g.

nitrites, sulphides) can lead to material damage.

Remove residues of the leak detecting agent after testing.

Flue gas emissions test

The electronic combustion controller automatically ensures an optimum combustion quality. Only the combustion values need to be checked during commissioning and maintenance. For this, check the CO

2

or O

2

content. For a description of the electronic

combustion controller functions, see page 132.

Note

Operate the appliance with uncontaminated combustion air to prevent operating faults and damage.

CO

2

or O

2

content

The CO

2

content must be within the following limits (upper and lower output):

■ 7.7 to 9.2 % for natural gas E and LL

■ 9.3 to 10.9 % for LPG P

For all gas types, the O

2

content must be between 4.4 and 6.9 %.

If the actual CO

2

or O

2

values lie outside their respective ranges, check the balanced

flue system for tightness, see page 18.

Note

During commissioning, the combustion controller carries out an automatic calibration.

Only test the emissions approx. 30 s after the burner has started.

25

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

A

1. Connect a flue gas analyser at flue gas aperture A on the boiler flue connection.

2. Open the gas shut-off valve, start the boiler and create a heat demand.

3. Select the lower output (see

page 26).

4. Check the CO

2

content. Should the actual value deviate from the above ranges by more than 1 %, implement

steps from page 25.

5. Enter actual values into the service report.

6. Select the upper output (see

page 26).

7. Check the CO

2

content. Should the actual value deviate from the above ranges by more than 1 %, implement

steps from page 25.

8. After testing, press OK.

9. Enter actual values into the service report.

26

Selecting the upper/lower output for weather-compensated control units:

1. Press OK and å simultaneously for approx. 4 s.

2. "Actuator test"

3. Select the lower output:

Select "Start base load" and confirm with OK.

4. Select the upper output:

Select "Start full load" and confirm with OK.

Selecting the upper/lower output for constant temperature control units:

1. Press OK and å simultaneously for approx. 4 s.

"Ü" flashes on the display.

2. Select Ú " " and confirm with OK.

The display shows "I" and "on" flashes.

3. Select the lower output:

Press OK, "on" will be displayed permanently.

4. Select the upper output:

Press ä.

5. Select "2" with Ú and confirm with

OK.

6. Exit output selection with ä.

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Matching the control unit to the heating system

The control unit must be matched to the equipment level of the system. Various system components are recognised automatically by the control unit and the relevant codes are adjusted automatically.

■ For the selection of an appropriate scheme, see the following diagrams.

■ For coding steps, see page 41.

System version 1

One heating circuit without mixer A1 with/without DHW heating, with/without low loss header

7 7

1

2

8

5

6 qP

4 3

9

ID: 4605139_1001_01

1 Vitodens 200-W

2 Outside temperature sensor (only for weather-compensated control units) or

Vitotrol 100 (only for constant temperature control units)

3 Heating circuit pump

4 Circulation pump for cylinder heating

5 DHW cylinder

6 Cylinder temperature sensor

7 Heating circuit without mixer A1

(heating circuit 1)

8 Heating circuit pump A1

9 Low loss header qP Flow temperature sensor, low loss header

27

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Function/system components

Operation with LPG

System without low loss header and without DHW circulation pump:

Circulation pump for cylinder heating, connection at internal extension H1 or H2

System with low loss header and without DHW circulation pump:

Heating circuit pump A1 connection at extension

AM1, terminal A1

Circulation pump for cylinder heating, connection at extension AM1, terminal A2

System with low loss header and with DHW circulation pump:

Heating circuit pump A1 connection at extension

AM1, terminal A1

Circulation pump for cylinder heating, connection at extension AM1, terminal A2

DHW circulation pump connection at internal extension H1 or H2

Code

Adjust Delivered con-

82:1

dition

82:0

53:3 53:1

34:2

34:2

33:1

34:0

33:1

34:0

53:1

28

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

System version 2

One heating circuit with mixer M2 with system separation, with/without DHW heating, with/without low loss header

7 7

5

1

2

8

9 qP qQ

8

9 qP qQ

6 qP qW

M qR qP qW

M

4

3 qE

ID: 4605013_1001_01

1 Vitodens 200-W

2 Outside temperature sensor

3 Boiler circuit pump

4 Circulation pump for cylinder heating

5 DHW cylinder

6 Cylinder temperature sensor

7 Heating circuit with mixer M2 (heating circuit 2)

8 Temperature limiter for limiting the maximum temperature of underfloor heating systems

9 Flow temperature sensor M2 qP Heating circuit pump M2 qQ Heat exchanger for system separation qW Extension kit for one heating circuit with mixer M2 qE Low loss header qR Flow temperature sensor, low loss header

29

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Function/system components Code

Adjust Delivered con-

82:1

dition

82:0 Operation with LPG

System only with one heating circuit with mixer with extension kit for mixer (without unregulated heating circuit)

■ with DHW cylinder

■ without DHW cylinder

System without DHW circulation pump

Circulation pump for cylinder heating, connection at internal extension H1 or H2

System with DHW circulation pump

Circulation pump for cylinder heating, connection at extension AM1, terminal A1

DHW circulation pump connection at extension AM1, terminal A2

00:4

00:3

53:3

33:2

00:6

00:5

53:1

33:1

34:0

30

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

System version 3

One heating circuit without mixer, one heating circuit with mixer M2 (with extension kit), one heating circuit with mixer M3 (with extension kit) and low loss header (with/without DHW heating)

7 9 qR qE qP

1

2

5

6 qT qZ qU

M qO

8 qW

M qQ

4 3 qI

ID: 4605141_1001_01

1 Vitodens 200-W

2 Outside temperature sensor

3 Boiler circuit pump

4 Circulation pump for cylinder heating

5 DHW cylinder

6 Cylinder temperature sensor

7 Heating circuit without mixer A1

(heating circuit 1)

8 Heating circuit pump A1

9 Heating circuit with mixer M2 (heating circuit 2) qP Flow temperature sensor M2 qQ Heating circuit pump M2 qW Extension kit for one heating circuit with mixer M2 qE Heating circuit with mixer M3 (heating circuit 3) qR Temperature limiter for limiting the maximum temperature of underfloor heating systems qT Flow temperature sensor M3 qZ Heating circuit pump M3 qU Extension kit for one heating circuit with mixer M3 qI Low loss header qO Flow temperature sensor, low loss header

31

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Function/system components Code

Adjust Delivered con-

82:1

dition

82:0 Operation with LPG

System only with two heating circuits with mixer with extension kit for mixer (without unregulated heating circuit)

■ with DHW cylinder

■ without DHW cylinder

System without DHW circulation pump

Heating circuit pump A1 connection at extension

AM1, terminal A1

Circulation pump for cylinder heating, connection at extension AM1, terminal A2

System with DHW circulation pump

Heating circuit pump A1 connection at extension

AM1, terminal A1

Circulation pump for cylinder heating, connection at extension AM1, terminal A2

DHW circulation pump connection at internal extension H1 or H2

00:8

00:7

34:2

34:2

00:10

00:9

33:1

34:0

33:1

34:0

53:1

32

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

System version 4

Multi-boiler system with several heating circuits with mixer and low loss header

(with/without DHW heating)

2 3 qW

9

8 qE qR

1 1

5

6 qI qQ

M qP qT qZ

M

7

4 4 qU

ID: 4605016_1001_01

1 Vitodens 200-W

2 Vitotronic 300-K

3 Outside temperature sensor

4 Boiler circuit pump

5 DHW cylinder

6 Cylinder temperature sensor

7 Circulation pump for cylinder heating

8 Heating circuit with mixer M2 (heating circuit 2)

9 Flow temperature sensor M2 qP Heating circuit pump M2 qQ Extension kit for one heating circuit with mixer M2

Required coding

Multi-boiler system with Vitotronic 300-K qW Heating circuit with mixer M3 (heating circuit 3) qE Temperature limiter for limiting the maximum temperature of underfloor heating systems qR Flow temperature sensor M3 qT Heating circuit pump M3 qZ Extension kit for one heating circuit with mixer M3 qU Low loss header qI Flow temperature sensor, low loss header

Address

01:2

33

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Note

Codes for multi-boiler system, see

Vitotronic 300-K installation and service instructions

Adjusting the heating curves (only for weather-compensated control units)

The heating curves illustrate the relationship between the outside temperature and the boiler water or flow temperature.

To put it simply, the lower the outside temperature, the higher the boiler water or flow temperature.

The room temperature, again, depends on the boiler water or the flow temperature.

Note

If the heating system includes heating circuits with mixers, then the flow temperature of the heating circuit without mixer is higher by a selected differential

(8 K in the delivered condition) than the flow temperature of the heating circuits with mixers.

The differential temperature can be changed at coding address 9F.

Settings in the delivered condition:

■ Slope = 1.4

■ Level = 0

34

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

35

Slope

50

Boiler water or flow temperature in °C

40

30

90

80

70

60

20

15

10

10

5

5 0 -5 -10 -15 -20 -25

Outside temperature in °C

-30

1.4

1.2

1.0

0.8

0.6

0.4

0.2

B

A

A Heating curve slope for underfloor heating systems

B Heating curve slope for low temperature heating systems (according to the Energy Savings Order [Germany])

35

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Changing the slope and level

90

3.5

Adjusting the set room temperature

Standard room temperature

90

A

A

B

1.4

C 26 + 20

B

-20

Boiler water or flow temperature in °C

+20 -20

Outside temperature in °C

0.2

D E

A Changing the slope

B Changing the level (vertical parallel offset of the heating curve)

Extended menu:

1. å

2. "Heating"

3. Select heating circuit.

4. "Heating curve"

5. "Slope" or "Level"

6. Select heating curve according to the system requirements.

Example 1: Adjustment of the standard room temperature from 20 to 26°C

A Boiler water temperature or flow temperature in °C

B Outside temperature in °C

C Set room temperature in °C

D Heating circuit pump "OFF"

E Heating circuit pump "ON"

Adjustment of the standard room temperature:

Operating instructions

36

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Reduced room temperature

90

A

C

+20 14 5

C Set room temperature in °C

D Heating circuit pump "OFF"

E Heating circuit pump "ON"

Adjustment of the reduced room temperature:

Operating instructions

D

B

-20

E

Example 2: Adjustment of reduced room temperature from 5 °C to 14 °C

A Boiler water temperature or flow temperature in °C

B Outside temperature in °C

Connecting the control unit to the LON system (only for weathercompensated control units)

The LON communication module

(accessories) must be plugged in.

Installation instructions

LON communication module

Note

The data transfer via LON can take several minutes.

Single boiler system with

Vitotronic 200-H and Vitocom 300

(example)

Set the LON subscriber numbers and further functions via code 2 (see the following table).

Note

In the same LON system, the same number cannot be allocated twice.

Only one Vitotronic may be programmed as fault manager.

37

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Boiler control unit Vitotronic 200-H Vitotronic 200-H Vitocom

LON

Subscriber no. 1

Code "77:1"

Control unit is fault manager

Code "79:1"

Control unit transmits the time

Code "7b:1"

Control unit transmits outside temperature

Set code "97:2"

LON subscriber fault monitoring

Code "9C:20"

LON

Subscriber no. 10

Code "77:10"

Control unit is not fault manager

Code "79:0"

The control unit receives the time

Set code "81:3"

The control unit receives the outside temperature

Set code "97:1"

LON subscriber fault monitoring

Code "9C:20"

LON

Subscriber no. 11

Set code "77:11"

Control unit is not fault manager

Code "79:0"

The control unit receives the time

Set code "81:3"

The control unit receives the outside temperature

Set code "97:1"

LON subscriber fault monitoring

Code "9C:20"

Subscriber no.

99

Device is fault manager

Device receives the time

Carrying out a LON subscriber check

Communication with the system devices connected to the fault manager is tested with a subscriber check.

Preconditions:

■ The control unit must be programmed as fault manager (code "79:1")

■ The LON subscriber number must be programmed in all control units (see

page 38)

■ The LON subscriber list in the fault manager must be up to date (see

page 38)

2. "Service functions"

3. "Subscriber check"

Carrying out a subscriber check:

1. Press OK and å simultaneously for approx. 4 s.

38

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

4. Select subscriber (e.g. subscriber

10).

The subscriber check for the selected subscriber is introduced.

■ Successfully tested subscribers are designated with "OK".

■ Unsuccessfully tested subscribers are designated with "Not OK".

Note

If the subscriber check is carried out by another control unit, the subscriber number and "Wink" are shown on the display for approx.

1 min.

Note

To carry out a new subscriber check, create a new subscriber list with menu item "Delete list?"

Scanning and resetting the "Service" display

After the limits specified in coding addresses "21" and "23" have been reached, the red fault indicator flashes and the following appears on the programming unit display:

■ On a constant temperature control unit:

The specified hours run or the specified interval with clock symbol "u" (subject to setting) and "¸"

■ On a weather-compensated control unit:

"Service" and "¸"

Scanning and resetting service

Press OK to acknowledge a service message.

After a service has been carried out

(reset service)

Weather-compensated control unit

1. Press OK and å simultaneously for approx. 4 s.

Note

An acknowledged service message that was not reset reappears:

■ On a weather-compensated control unit, on the following Monday.

■ On a constant temperature control unit, after seven days.

2. "Service functions"

3. "Service reset"

Note

The selected service parameters for hours run and time interval restart at 0.

39

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

Constant temperature control unit

Reset code 24:1 to 24:0.

Note

The selected service parameters for hours run and time interval restart at 0.

Instructing the system user

The system installer must hand the operating instructions to the system user and instruct him/her in the operation of the system.

40

Code 1

Calling up coding level 1

Calling up coding level 1

Note

■ On weather-compensated control units, codes are displayed as plain text.

■ Codes that have no function due to the heating system equipment level or the setting of other codes are not displayed.

■ Heating systems with one heating circuit without mixer and one or two heating circuits with mixer:

The heating circuit without a mixer is designated "Heating circuit 1" and the heating circuits with mixer as

"Heating circuit 2" or "Heating cir-

cuit 3".

If the heating circuits were given individual designations, the selected designation and "HC1", "HC2" or "HC3" appear instead.

Weather-compensated control unit:

1. Press OK and å simultaneously for approx. 4 s.

2. "Coding level 1"

3. Select group of required coding address:

"General"

"Boiler"

"DHW"

"Solar"

"Heating circuit 1/2/3"

"All cod. or solar"

In this group, all coding addresses from coding level 1 (except the coding addresses from the "Solar" group) are displayed in ascending order.

4. Select coding address.

5. Select value according to the following tables and confirm with OK.

6. If you want to reset all codes to their delivered condition:

Select "Standard setting" in "Cod-

ing level 1".

Note

This also resets codes from coding level 2.

Constant temperature control unit:

1. Press OK and å simultaneously for approx. 4 s.

2. With Ú, select "1" for coding level 1 and confirm with OK.

"I" flashes on the display for the coding addresses in group 1.

3. Select group of the required coding address with V/v. For example,

"1" for group "General" (see following section):

Confirm selected group with OK.

4. Select coding address with V/v.

5. Select value according to the following tables with V/v and confirm with

OK.

41

Code 1

Calling up coding level 1

(cont.)

6. If you want to reset all codes to their delivered condition:

Select Ú "7" and confirm with OK.

When " " flashes, confirm with OK.

Note

This also resets codes from coding level 2.

General/Group "1"

Select "General" for weather-compensated control units (see page 41).

Select "1" for constant temperature control units (see page 41).

Coding

3

4

Coding in the delivered condition

System design

00:1 System version 1:

One heating circuit without mixer (A1), without

DHW heating

Possible change

00:2 to

00:10

For system schemes, see the following table:

Value address

00: ...

2

System version

1

Description

5

6

7

8

2

2

3

3

3

3

One heating circuit without mixer (heating circuit 1), with DHW heating (code is adjusted automatically)

One heating circuit with mixer (heating circuit 2), without DHW heating

One heating circuit with mixer (heating circuit 2), with DHW heating

One heating circuit without mixer (heating circuit 1) and one heating circuit with mixer (heating circuit 2), without DHW heating (code is adjusted automatically)

One heating circuit without mixer (heating circuit 1) and one heating circuit with mixer (heating circuit 2), with DHW heating

(code is adjusted automatically)

One heating circuit with mixer (heating circuit 2) and one heating circuit with mixer (heating circuit 3), without DHW heating

One heating circuit with mixer (heating circuit 2) and one heating circuit with mixer (heating circuit 3), with DHW heating

42

Code 1

General/Group "1"

(cont.)

Value address

00: ...

9

System version

3

Description

10 3

One heating circuit without mixer (heating circuit 1), one heating circuit with mixer (heating circuit 2) and one heating circuit with mixer (heating circuit 3), without DHW heating (code is adjusted automatically)

One heating circuit without mixer (heating circuit 1), one heating circuit with mixer (heating circuit 2) and one heating circuit with mixer (heating circuit 3), with DHW heating (code is adjusted automatically)

Coding in the delivered condition

Internal circulation pump function

51:0 Internal circulation pump always starts when there is a heat demand

Possible change

51:1

51:2

System with low loss header:

When there is a heat demand, the internal circulation pump only starts when the burner is operational (with pump run-on).

System with heating water buffer cylinder:

When there is a heat demand, the internal circulation pump only starts when the burner is operational (with pump run-on).

Subscriber no.

77:1 LON subscriber number

(only for weather-compensated control units)

77:2 to

77:99

LON subscriber number, adjustable from 1 to 99:

1 - 4 = Boiler

5 = Cascade

10 - 98 = Vitotronic 200-H

99 = Vitocom

Note

Allocate each number only

once.

43

Code 1

General/Group "1"

(cont.)

Coding in the delivered condition

Detached house/apartment building

7F:1 Detached house (only for weather-compensated control units)

Possible change

7F:0 Apartment building

Separate adjustment of holiday program and time program for DHW heating, as option

Lock out controls

8F:0 All control elements active

8F:1

8F:2

All control elements locked out

Only standard settings can be controlled

Set flow temperature for ext. demand

9b:70 Set flow temperature in case of external demand

70 °C

9b:0 to

9b:127

Set flow temperature for external demand adjustable from 0 to 127 °C (limited by boiler-specific parameters)

Boiler/Group "2"

Select "Boiler" for weather-compensated control units (see page 41).

Select "2" for constant temperature control units (see page 41).

Coding

Coding in the delivered condition

Single/multi-boiler system

01:1 Single boiler system (only for constant temperature control units)

Burner service in 100 hours

21:0 No service interval (hours run) selected

Possible change

01:2

21:1 to

21:100

Multi-boiler system with

Vitotronic 300-K

The number of hours run before the burner should be serviced is adjustable from 100 to 10,000 h

One adjusting step

100 h

44

Code 1

Boiler/Group "2"

(cont.)

Coding in the delivered condition

Service interval in months

23:0

Service status

24:0

No time interval for burner service

No "Service" display

Possible change

23:1 to

23:24

24:1

Interval adjustable from 1 to 24 months

"Service" display (the address is automatically set and must be manually reset after a service has been carried out)

Filling/Venting

2F:0 Venting program/fill program disabled

2F:1

2F:2

Venting program enabled

Fill program enabled

DHW/Group "3"

Select "DHW" for weather-compensated control units (see page 41).

Select "3" for constant temperature control units (see page 41).

Coding

Coding in the delivered condition

Set DHW temp reheat suppression

67:40 For solar DHW heating:

Set DHW temperature

40 °C. Reheating is suppressed above the selected set temperature

(DHW heating blocked by the boiler).

Cannot be adjusted on gas condensing combi boilers.

Enable DHW circulation pump

73:0 DHW circulation pump:

"ON" in accordance with the time program (only for weather-compensated control units)

Possible change

67:0 to

67:95

73:1 to

73:6

73:7

Set DHW temperature adjustable from 0 to 95 °C

(limited by boiler-specific parameters)

"ON" from once per hour for 5 min up to 6 times per hour for 5 min during the time program

Constantly "ON"

45

Code 1

Solar/Group "4"

Select "Solar" for weather-compensated control units (see page 41).

Select "4" for constant temperature control units (see page 41).

Note

The solar group is only displayed if a solar control module, type SM1, is connected.

Coding

Coding in the delivered condition

Speed control collector pump

02:0 Solar circuit pump is not speed-controlled

Possible change

02:1

02:2

Solar circuit pump is speed-controlled with wave pack control

Solar circuit pump is speed-controlled with

PWM control

Cylinder maximum temperature

08:60 The solar circuit pump will stop when the actual cylinder temperature reaches 60 °C (maximum cylinder temperature).

Reducing stagnation time

0A:5 To protect the system components and heat transfer medium, the speed of the solar circuit pump is reduced when the differential between the actual cylinder temperature and set cylinder temperature is less than

5 K.

Nominal flow rate

0F:70 The flow rate in the collector circuit at the maximum pump speed is set to 7 l/min.

08:10 to

08:90

0A:0 to

0A:40

0F:1 to

0F:255

The maximum cylinder temperature is adjustable from 10 to 90 °C.

The differential between the set cylinder temperature and the start point for reducing the stagnation time can be adjusted from

0 to 40 K.

Flow rate in the collector circuit adjustable from 0.1

to 25.5 l/min

46

Code 1

Solar/Group "4"

(cont.)

Coding in the delivered condition

Extended control functions

20:0 No extended control functions enabled

Possible change

20:1

20:2

20:3

20:4

20:5

20:6

20:7

20:8

20:9

Auxiliary function for DHW heating

Differential temperature control 2

Differential temperature control 2 and auxiliary function

Differential temperature control 2 for central heating backup

Thermostat function

Thermostat function and auxiliary function

Solar heating via external heat exchanger without additional temperature sensor

Solar heating via external heat exchanger with additional temperature sensor

Solar heating of two DHW cylinders

Heating circuit 1, heating circuit 2, heating circuit 3/Group "5"

Select "Heating circuit ..." for weather-compensated control units (see page 41).

Select "5" for constant temperature control units (see page 41).

47

Code 1

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding

Coding in the delivered condition

DHW priority

A2:2 Cylinder priority applicable to heating circuit pump and mixer

Possible change

A2:0

A2:1

A2:3 to

A2:15

Without cylinder priority applicable to heating circuit pump and mixer

Cylinder priority only applicable to mixer

Reduced priority applied to mixer (the heating circuit receives a reduced amount of energy)

Summer eco function outside temperature

A5:5 With heating circuit pump A5:0 logic function (economy circuit): Heating circuit pump "OFF" when the outside temperature (AT)

A5:1 to

A5:15 is 1 K higher than the set room temperature (RT set

)

AT > RT set

+ 1 K (only for weather-compensated control units)

Without heating circuit pump logic function

With heating circuit pump logic function: Heating circuit pump "OFF" (see the following table)

5

6

7 to

15

2

3

4

Parameter address

A5:...

1

With heating circuit pump logic function: Heating circuit pump "OFF"

AT > RT set

+ 5 K

AT > RT set

+ 4 K

AT > RT set

+ 3 K

AT > RT set

+ 2 K

AT > RT set

+ 1 K

AT > RT set

AT > RT set

AT > RT set

- 1 K

- 9 K

48

Code 1

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

Summer eco function absolute

A6:36 Extended economy function disabled (only for weather-compensated control units)

Possible change

A6:5 to

A6:35

Extended economy control enabled, i.e. the burner and heating circuit pump will be switched OFF and the mixer closed at a variable adjustable value between 5 and 35 °C plus 1 °C. Base value is the adjusted outside temperature. This value is based on the actual outside temperature and a time constant that takes the cooling down of an average building into consideration.

Mixer eco function

A7:0 Without mixer economy function (only for a weather-compensated control unit and heating circuit with mixer)

A7:1 With mixer economy function (extended heating circuit pump logic):

Heating circuit pump also

"OFF":

■ If a mixer has been closed for longer than

20 min.

Heating pump "ON":

■ If the mixer changes to control function

■ If there is a risk of frost

Pump idle time, transition red. mode

A9:7 With pump idle time:

Heating circuit pump

"OFF" if the set value changes through a change in operating mode or through a change in the set room temperature (only for weather-compensated control units)

A9:0

A9:1 to

A9:15

Without pump idle time

With pump idle time; adjustable from 1 to 15

49

Code 1

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

Flow temperature minimum limit

C5:20 Electronic minimum flow temperature limit 20 °C

(only for weather-compensated control units)

Possible change

C5:1 to

C5:127

Minimum limit adjustable from 1 to 127 °C (limited by boiler-specific parameters)

50

Code 1

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

Flow temperature maximum limit

C6:74 Electronic maximum flow temperature limited to

74 °C (only for weathercompensated control units)

Heating program - changeover

d5:0 The external heating program changeover changes the heating program to "Constant operation with reduced room temperature" or "Standby mode" (only for weathercompensated control units)

Possible change

C6:10 to

C6:127 d5:1

Ext. heating program changeover to heating circuit

d8:0 No heating program d8:1 changeover via extension

EA1 d8:2 d8:3

Maximum limit adjustable from 10 to 127 °C (limited by boiler-specific parameters)

The external heating program changeover changes to "Constant operation with standard room temperature" (independent of coding address 3A, 3b and

3C)

Heating program changeover via input DE1 at extension EA1

Heating program changeover via input DE2 at extension EA1

Heating program changeover via input DE3 at extension EA1

Max. pump speed in standard mode

E6:...

Maximum speed of the variable speed heating circuit pump in % of the max. speed in standard mode. Value is defaulted by boiler-specific parameters (only for weathercompensated control units).

E6:0 to

E6:100

Maximum speed adjustable from 0 to 100 %

51

Code 1

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

Min. pump speed

E7:30 Minimum speed of the variable speed heating circuit pump: 30 % of the maximum speed (only for weather-compensated control units)

Screed function

F1:0 Screed drying function disabled (only for weather-compensated control units)

Possible change

E7:0 to

E7:100

F1:1 to

F1:6

F1:15

Minimum speed adjustable from 0 to 100 % of the maximum speed

Screed drying function adjustable in accordance with 6 optional temperature/time profiles (see

page 127)

Constant flow temperature

20 °C

Party mode time limit

F2:8 Time limit for party mode or external heating program changeover via key:

8 h (only for weathercompensated control units)

*1

Pump control in "Only DHW"

F6:25 In the "DHW only" operating mode, the circulation pump in the heating circuit connection set is permanently ON (only for constant temperature control units)

F2:0

F2:1 to

F2:12

F6:0

F6:1 to

F6:24

No time limit for party mode to 12h

*1

Time limit adjustable from 1

*1

In the "DHW only" operating mode, the circulation pump in the heating circuit connection set is permanently OFF

In the "DHW only" operating mode, the circulation pump in the heating circuit connection set will be started 1 to 24 times per day for

10 min respectively

*1 Party mode ends automatically in the "Heating and DHW" program, when the system changes over to operation with standard room temperature.

52

Code 1

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

Pump control in "Standby mode"

F7:25 In the "Standby" operating mode, the circulation pump in the heating circuit connection set is permanently ON (only for constant temperature control units)

Possible change

F7:0

F7:1 to

F7:24

In the "Standby" operating mode, the circulation pump in the heating circuit connection set is permanently

OFF

In the "Standby" operating mode, the circulation pump in the heating circuit connection set will be started 1 to 24 times per day for

10 min respectively

Start temperature raising

F8:-5 Temperature limit for terminating the reduced mode -5 ºC, see example

on page 130.

Observe the setting of coding address "A3" (only for weather-compensated control units)

End temperature raising

F9:-14 Temperature limit for raising the reduced set room temp. -14 ºC, see exam-

ple on page 130 (only for

weather-compensated control units)

Increase set flow temperature

FA:20 Raising the set boiler water temperature or the set flow temperature when changing from operation with reduced room temperature to operation with standard room temperature, by

20 %. See example on

page 131 (only for

weather-compensated control units)

F8:+10 to

F8:-60

F8:-61

F9:+10 to

F9:-60

FA:0 to

FA:50

Temperature limit adjustable from

+10 to -60 °C

Function disabled

Temperature limit for raising the set room temperature to the value selected for standard mode adjustable from

+10 to -60 °C

Temperature rise adjustable from 0 to 50 %

53

Code 1

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

Duration set flow temperature increase

Possible change

Fb:30 Duration for raising the set boiler water temperature or the set flow temperature (see coding address "FA") 60 min.

See example on

page 131 (only for

weather-compensated control units)

Fb:0 to

Fb:150

Duration adjustable from 0 to 300 min; one step

≙ 2 min

54

Code 2

Calling up coding level 2

Calling up coding level 2

Note

■ In coding level 2, all codes are accessible, including the codes from coding level 1.

■ Codes that have no function due to the heating system equipment level or the setting of other codes are not displayed.

■ Heating systems with one heating circuit without mixer and one or two heating circuits with mixer:

The heating circuit without a mixer is designated "Heating circuit 1" and the heating circuits with mixer as

"Heating circuit 2" or "Heating cir-

cuit 3".

If the heating circuits were given individual designations, the selected designation and "HC1", "HC2" or "HC3" appear instead.

Weather-compensated control unit:

1. Press OK and å simultaneously for approx. 4 s.

2. Press OK and ä simultaneously for approx. 4 s.

3. "Coding level 2"

4. Select group of required coding address:

"General"

"Boiler"

"DHW"

"Solar"

"Heating circuit 1/2/3"

"All cod. or solar"

In this group, all coding addresses

(except the coding addresses from the "Solar" group) are displayed in ascending order.

5. Select coding address.

6. Select value according to the following tables and confirm with "OK".

7. If you want to reset all codes to their delivered condition:

Select "Standard setting" in "Cod-

ing level 2".

Note

This also resets codes from coding level 1.

Constant temperature control unit:

1. Press OK and å simultaneously for approx. 4 s.

2. Press OK and ä simultaneously for approx. 4 s.

3. With Ú, select "2" for coding level 2 and confirm with OK.

"I" flashes on the display for the coding addresses in group 1.

55

Code 2

Calling up coding level 2

(cont.)

4. Select group of the required coding address with V/v. For example,

"1" for group "General" (see following section):

Confirm selected group with OK.

5. Select coding address with V/v.

6. Select value according to the following tables with V/v and confirm with

OK.

7. If you want to reset all codes to their delivered condition:

Select Ú "7" and confirm with OK.

When " " flashes, confirm with OK.

Note

This also resets codes from coding level 1.

General/Group "1"

Select "General" for weather-compensated control units (see page 55).

Select "1" for constant temperature control units (see page 55).

Coding

Coding in the delivered condition

00:1 System version 1:

One heating circuit without mixer (A1), without

DHW heating

Possible change

00:2 to

00:10

For system schemes, see the following table:

Description

3

4

Value address

00: ...

2

System version

1

5

2

2

3

6 3

One heating circuit without mixer (heating circuit 1), with DHW heating (code is adjusted automatically)

One heating circuit with mixer (heating circuit 2), without DHW heating

One heating circuit with mixer (heating circuit 2), with DHW heating

One heating circuit without mixer (heating circuit 1) and one heating circuit with mixer (heating circuit 2), without DHW heating (code is adjusted automatically)

One heating circuit without mixer (heating circuit 1) and one heating circuit with mixer (heating circuit 2), with DHW heating

(code is adjusted automatically)

56

Code 2

General/Group "1"

(cont.)

Value address

00: ...

7

System version

3

Description

8

9

10

3

3

3

One heating circuit with mixer (heating circuit 2) and one heating circuit with mixer (heating circuit 3), without DHW heating

One heating circuit with mixer (heating circuit 2) and one heating circuit with mixer (heating circuit 3), with DHW heating

One heating circuit without mixer (heating circuit 1), one heating circuit with mixer (heating circuit 2) and one heating circuit with mixer (heating circuit 3), without DHW heating (code is adjusted automatically)

One heating circuit without mixer (heating circuit 1), one heating circuit with mixer (heating circuit 2) and one heating circuit with mixer (heating circuit 3), with DHW heating (code is adjusted automatically)

Coding in the delivered condition

11:

≠9

No access to the coding addresses for the com-

25:0 bustion controller parameters

Without outside tempera-

32:0

Possible change

11:9

25:1 ture sensor (for constant temperature control units)

Without extension AM1 32:1

Access open to the coding addresses for the combustion controller parameters

With outside temperature sensor (automatic recognition)

33:1 Function output A1 at extension AM1: Heating circuit pump

33:0

33:2

With extension AM1 (automatic recognition)

Function output A1: DHW circulation pump

Function output A1: Circulation pump for cylinder

34:0 Function output A2 at extension AM1: DHW circulation pump

34:1

34:2 heating

Function output A2: Heating circuit pump

Function output A2: Circulation pump for cylinder heating

35:0 Without extension EA1 35:1 With extension EA1 (automatic recognition)

57

Code 2

General/Group "1"

(cont.)

Coding in the delivered condition

36:0

3A:0

Function output aBJ at extension EA1: Fault message

Function input DE1 at extension EA1: No function

Possible change

36:1

Function output aBJ: Feed pump

36:2

Function output aBJ: DHW circulation pump

3A:1

3A:2

3A:3

Function input DE1: Heating program changeover

Function input DE1: External demand with set flow temperature.

Function internal circulation pump: Coding address

3F

Function input DE1: External blocking.

Function internal circulation pump: Coding address

3E

3A:4

3A:5

3A:6

Function input DE1: External blocking with fault message input

Function internal circulation pump: Coding address

3E

Function input DE1: Fault message input

Function input DE1: Brief operation, DHW circulation pump (pushbutton function).

DHW circulation pump runtime adjustment: Coding address 3d

58

Code 2

General/Group "1"

(cont.)

Coding in the delivered condition

3b:0 Function input DE2 at extension EA1: No function

Possible change

3b:1 Function input DE2: Heat-

3b:2 ing program changeover

Function input DE2: Exter-

3b:3 nal demand with set flow temperature.

Function internal circulation pump: Coding address

3F

Function input DE2: Exter-

3b:4

3b:5

3b:6 nal blocking.

Function internal circulation pump: Coding address

3E

Function input DE2: External blocking with fault message input

Function internal circulation pump: Coding address

3E

Function input DE2: Fault message input

Function input DE2: Brief operation, DHW circulation pump (pushbutton function).

DHW circulation pump runtime adjustment: Coding address 3d

59

Code 2

General/Group "1"

(cont.)

Coding in the delivered condition

3C:0

3d:5

3E:0

Function input DE3 at extension EA1: No function

DHW circulation pump runtime for brief operation: 5 min

Internal circulation pump stays in control mode at signal "External blocking"

Possible change

3C:1 Function input DE3: Heat-

3C:2 ing program changeover

Function input DE3: Exter-

3C:3 nal demand with set flow temperature.

Function internal circulation pump: Coding address

3F

Function input DE3: Exter-

3C:4

3C:5

3C:6

3d:1 to

3d:60 nal blocking.

Function internal circulation pump: Coding address

3E

Function input DE3: External blocking with fault message input

Function internal circulation pump: Coding address

3E

Function input DE3: Fault message input

Function input DE3: Brief operation, DHW circulation pump (pushbutton function).

DHW circulation pump runtime adjustment: Coding address 3d

DHW circulation pump runtime adjustable from 1 to

60 min

3E:1

3E:2

Internal circulation pump stops at signal "External blocking"

Internal circulation pump starts at signal "External blocking"

60

Code 2

General/Group "1"

(cont.)

Coding in the delivered condition

3F:0

51:0

52:0

53:1

Internal circulation pump stays in control mode at signal "External demand"

Internal circulation pump always starts when there is a heat demand

Without flow temperature sensor for low loss header

Function connection sK of the internal extension:

DHW circulation pump

Possible change

3F:1 Internal circulation pump stops at signal "External demand"

3F:2

51:1

51:2

Internal circulation pump starts at signal "External demand"

System with low loss header:

When there is a heat demand, the internal circulation pump only starts when the burner is operational (with pump run-on).

System with heating water buffer cylinder:

When there is a heat demand, the internal circulation pump only starts when the burner is operational (with pump run-on).

52:1

53:0

53:2

53:3

With flow temperature sensor for low loss header

(automatic recognition)

Function connection sK:

Central fault

Function connection sK:

External heating circuit pump (heating circuit 1)

Function connection sK:

External circulation pump for cylinder heating

61

Code 2

General/Group "1"

(cont.)

Coding in the delivered condition

54:0

6E:50

76:0

77:1

Without solar thermal system

Do not adjust

Without LON communication module (only for weather-compensated control units)

LON subscriber number

(only for weather-compensated control units)

77:2 to

77:99

Possible change

54:1 With Vitosolic 100 (auto-

54:2 matic recognition)

With Vitosolic 200 (auto-

54:3

54:4 matic recognition)

With solar control module

SM1 without auxiliary function (automatic recognition)

With solar control module

SM1 with auxiliary function, e.g. central heating backup

(automatic recognition)

76:1 With LON communication module (automatic recognition)

79:1

LON subscriber number, adjustable from 1 to 99:

1 - 4 = Boiler

5 = Cascade

10 - 98 = Vitotronic 200-H

99 = Vitocom

Note

Allocate each number only

once.

Control unit is not fault manager

7b:1

With LON communication module: Control unit is fault manager (only for weather-compensated control units)

With LON communication module: The control unit transmits the time (only for weather-compensated control units)

79:0

7b:0 Does not transmit time

62

Code 2

General/Group "1"

(cont.)

Coding in the delivered condition

7F:1 Detached house (only for weather-compensated control units)

80:6

81:1

82:0

86:0

87:0

88:0

8A:175

8F:0

90:128

A fault message is displayed, providing a fault is active for at least 30 s

Automatic summer/winter time changeover

Operation with natural gas

Do not adjust

Do not adjust

Temperature displayed in

°C (Celsius)

Do not adjust!

All control elements active

Time constant for calculating the adjusted outside temperature 21.3 h

Possible change

7F:0 Apartment building

Separate adjustment of holiday program and time program for DHW heating, as option

80:0

80:2 to

80:199

81:0

81:2

81:3

Immediate fault message

The minimum fault duration before a fault message is issued is adjustable from

10 s to 995 s; one step

5 s

Manual summer/winter time changeover

Use of the radio clock receiver (automatic recognition)

With LON communication module: The control unit receives the time

82:1

88:1

8F:1

8F:2

90:1 to

90:199

Operation with LPG (only adjustable if coding address 11:9 has been set)

Temperature displayed in

°F (Fahrenheit)

All control elements locked out

Only standard settings can be controlled

Fast (low values) or slow

(high values) matching of the flow temperature, subject to the set value when the outside temperature changes;

1 step

≙ 10 min

63

Code 2

General/Group "1"

(cont.)

Coding in the delivered condition

94:0

95:0

97:0

98:1

9b:70

9C:20

Without Open Therm extension

Without Vitocom 100 communication interface

With LON communication module: The outside temperature of the sensor connected to the control unit is utilised internally

(only for weather-compensated control units)

Viessmann system number (in conjunction with monitoring several systems via Vitocom 300)

Set flow temperature in case of external demand

70 °C

98:1 to

98:5

9b:0 to

9b:127

Possible change

94:1 With Open Therm extension (automatic recognition)

95:1

97:1

97:2

With Vitocom 100 communication interface (automatic recognition)

The control unit receives the outside temperature

The control unit transmits the outside temperature to the Vitotronic 200-H

9C:0

9C:5 to

9C:60

System number adjustable from 1 to 5

Set flow temperature for external demand adjustable from 0 to 127 °C (limited by boiler-specific parameters)

No monitoring

The time is adjustable from

5 to 60 min

9F:8

Monitoring LON subscribers.

If a subscriber fails to respond, the values specified inside the control unit will be used after

20 min. Only then will a fault message be issued.

(only for weather-compensated control units)

Differential temperature

8 K; only in conjunction with the mixer circuit (only for weather-compensated control units)

9F:0 to

9F:40

Differential temperature adjustable from 0 to 40 K

64

Code 2

Boiler/Group "2"

Select "Boiler" for weather-compensated control units (see page 55).

Select "2" for constant temperature control units (see page 55).

Coding

Coding in the delivered condition

01:1

04:1

06:...

0d:0

0E:0

Single boiler system (only for constant temperature control units)

Minimum burner pause subject to the boiler load

(specified by boiler coding card)

Maximum limit of the boiler water temperature, defaulted in °C by the boiler coding card

Do not adjust

Do not adjust

13:1

14:1

15:1

21:0

Do not adjust

Do not adjust

Do not adjust

No service interval (hours run) selected

23:0

24:0

No time interval for burner service

No "Service" display

Possible change

01:2 Multi-boiler system with

Vitotronic 300-K

04:0

06:20 to

06:127

21:1 to

21:100

23:1 to

23:24

24:1

Minimum burner pause set permanently (specified by boiler coding card)

Maximum limit of the boiler water temperature within the ranges specified by the boiler

The number of hours run before the burner should be serviced is adjustable from 100 to 10,000 h

One adjusting step

100 h

Interval adjustable from 1 to 24 months

28:0 No burner interval ignition

28:1 to

28:24

"Service" display (the address is automatically set and must be manually reset after a service has been carried out)

Time interval adjustable from 1 to 24 h. The burner is force-started once every

30 s (only when operating with LPG)

65

Code 2

Boiler/Group "2"

(cont.)

Coding in the delivered condition

2E:0

2F:0

30:1

31:...

38:0

Without external extension H1 or H2

Venting program/fill program disabled

Internal variable speed circulation pump (automatic adjustment)

Set speed in % of the internal circulation pump when operated as boiler circuit pump, specified by the boiler coding card

Status burner control unit:

Operational (no fault)

Possible change

2E:1 With external extension H1 or H2 (automatic recognition)

2F:1

2F:2

30:0

31:0 to

31:100

Venting program enabled

Fill program enabled

Internal circulation pump without variable speed

(e.g. temporarily for service)

Set speed adjustable from

0 to 100 %

38:

≠0

Status burner control unit:

Fault

DHW/Group "3"

Select "DHW" for weather-compensated control units (see page 55).

Select "3" for constant temperature control units (see page 55).

66

Code 2

DHW/Group "3"

(cont.)

Coding

Coding in the delivered condition

56:0

58:0

59:0

5b:0

5E:0

5F:0

60:20

Set DHW temperature adjustable from 10 to

60 °C

Without auxiliary function for DHW heating

Cylinder heating:

Starting point -2.5 K

Stopping point +2.5 K

DHW cylinder directly connected to the boiler

Circulation pump for cylinder heating (connection at extension AM1) stays in control mode at signal

"External blocking"

Circulation pump for cylinder heating (connection at extension AM1) stays in control mode at signal

"External demand"

During DHW heating, the boiler water temperature is max. 20 K higher than the set DHW temperature

Possible change

56:1 Set DHW temperature adjustable from 10 to above 60 °C

58:10 to

58:60

59:1 to

59:10

5b:1

5E:1

5E:2

5F:1

5F:2

60:5 to

60:25

Note

Maximum value subject to boiler coding card.

Observe the max. permissible DHW temperature.

Input of a second set DHW temperature, adjustable from 10 to 60 °C (observe coding addresses "56" and

"63")

Starting point adjustable from 1 to 10 K below the set value

DHW cylinder connected downstream of the low loss header

Circulation pump for cylinder heating stops at signal

"External blocking"

Circulation pump for cylinder heating starts at signal

"External blocking"

Circulation pump for cylinder heating stops at signal

"External demand"

Circulation pump for cylinder heating starts at signal

"External demand"

The difference between the boiler water temperature and the set DHW temperature is adjustable from 5 to

25 K

67

Code 2

DHW/Group "3"

(cont.)

Coding in the delivered condition

62:2

63:0

65:0

67:40

6C:100

6F:...

71:0

72:0

73:0

Circulation pump with

2 min run-on time after cylinder heating

Without auxiliary function for DHW heating (only for constant temperature control units)

Do not adjust!

For solar DHW heating:

Set DHW temperature

40 °C. Reheating is suppressed above the selected set temperature

(DHW heating blocked by the boiler).

Set speed; internal circulation pump with DHW heating 100 %

Maximum output for

DHW heating in %, specified by the boiler coding card

DHW circulation pump:

"ON" in accordance with the time program (only for weather-compensated control units)

DHW circulation pump:

"ON" in accordance with the time program (only for weather-compensated control units)

DHW circulation pump:

"ON" in accordance with the time program (only for weather-compensated control units)

Possible change

62:0 Circulation pump without

62:1 to

62:15 run-on

Run-on time adjustable from 1 to 15 min

63:1

63:2 to

63:14

63:15

Auxiliary function: 1 x daily

Every 2 days to every 14 days

2 x daily

67:0 to

67:95

Set DHW temperature adjustable from 0 to 95 °C

(limited by boiler-specific parameters)

6C:0 to

6C:100

6F:0 to

6F:100

71:1

71:2

72:1

72:2

73:1 to

73:6

73:7

Set speed adjustable from

0 to 100 %

Max. output during DHW heating adjustable from min. output to 100 %

"OFF" during DHW heating to the first set value

"ON" during DHW heating to the first set value

"OFF" during DHW heating to the second set value

"ON" during DHW heating to the second set value

"ON" from once per hour for 5 min up to 6 times per hour for 5 min during the time program

Constantly "ON"

68

Code 2

Solar/Group "4"

Select "Solar" for weather-compensated control units (see page 55).

Select "4" for constant temperature control units (see page 55).

Note

The solar group is only displayed if a solar control module, type SM1, is connected.

Coding

Coding in the delivered condition

00:8

01:4

02:0

03:10

04:5

05:10

The solar circuit pump starts when the collector temperature exceeds the actual cylinder temperature by 8 K.

The solar circuit pump stops when the differential between the collector temperature and the actual cylinder temperature is less than 4 K.

Solar circuit pump is not speed-controlled

The temperature differential between the collector temperature and actual cylinder temperature is regulated to 10 K.

Controller amplification of the speed control 5 %/K.

Minimum speed of the solar circuit pump 10 % of the maximum speed

Possible change

00:2 The differential between to

00:30 the actual cylinder temperature and the start point for the solar circuit pump can be adjusted from 2 to

01:1 to

01:29

02:1

30 K.

The differential between the actual cylinder temperature and the stop point for the solar circuit pump can be adjusted from 1 to

29 K.

Solar circuit pump is

02:2 speed-controlled with wave pack control

Solar circuit pump is speed-controlled with

PWM control

03:5 to

03:20

04:1 to

04:10

05:1 to

05:100

The differential temperature control between collector temperature and actual cylinder temperature can be adjusted from 5 to 20 K

Controller amplification adjustable from 1 to

10 %/K

Minimum speed of the solar circuit pump is adjustable from 1 to 100 %

69

Code 2

Solar/Group "4"

(cont.)

Coding in the delivered condition

06:80 Maximum speed of the solar circuit pump 80 % of the maximum possible

07:0 speed

Interval function of the solar circuit pump switched OFF

08:60

Possible change

06:1 Maximum speed of the to

06:100 solar circuit pump is adjustable from 1 to 100 %

07:1

08:10 to

08:90

Interval function of the solar circuit pump switched

ON.

To capture the collector temperature more accurately, the solar circuit pump starts for short cycles.

The maximum cylinder temperature is adjustable from 10 to 90 °C.

09:130

0A:5

0b:0

The solar circuit pump will stop when the actual cylinder temperature reaches 60 °C (maximum cylinder temperature).

The solar circuit pump stops if the collector temperature reaches 130 °C

(maximum collector temperature to protect the system components).

To protect the system components and heat transfer medium, the speed of the solar circuit pump is reduced when the differential between the actual cylinder temperature and set cylinder temperature is less than

5 K.

Collector frost protection function switched OFF

09:20 to

09:200

0A:0 to

0A:40

0b:1

The temperature is adjustable from 20 to 200 °C.

The differential between the set cylinder temperature and the start point for reducing the stagnation time can be adjusted from

0 to 40 K.

Collector frost protection function switched ON (not required with Viessmann heat transfer medium).

70

Code 2

Solar/Group "4"

(cont.)

Coding in the delivered condition

0C:1 Delta T monitoring switched ON.

No flow rate captured in the collector circuit, or flow rate too low.

0d:1

0E:1

Night circulation monitoring switched ON.

Unintentional flow rate is captured in the collector circuit (e.g. at night).

Calculation of solar yield with Viessmann heat transfer medium

Possible change

0C:0 Delta T monitoring switched OFF.

0d:0

0E:2

Night circulation monitoring switched OFF.

0F:70

10:0

The flow rate in the collector circuit at the maximum pump speed is set to 7 l/min.

Target temperature control switched OFF (see coding address 11)

0E:0

0F:1 to

0F:255

10:1

Calculation of solar yield with water as heat transfer medium (do not select as operation is only possible with Viessmann heat transfer medium)

Calculation of solar yield switched OFF

Flow rate in the collector circuit adjustable from 0.1

to 25.5 l/min

Target temperature control switched ON

71

Code 2

Solar/Group "4"

(cont.)

Coding in the delivered condition

11:50 Set solar cylinder temperature 50 °C.

■ Target temperature control switched ON

(code 10:1):

Temperature at which the solar heated water in the DHW cylinder is to be stratified.

■ Extended control functions set to heat two

DHW cylinders (code

20:8):

12:20

If the actual temperature of a DHW cylinder reaches the selected set cylinder temperature, heating is transferred to the second

DHW cylinder.

Minimum collector temperature 20 °C.

The solar circuit pump is not started until the minimum collector temperature set at the collector temperature sensor is exceeded.

Possible change

11:10 The set cylinder temperato

11:90 ture for solar is adjustable from 10 to 90 °C

12:0

12:1 to

12:90

Minimum collector temperature function switched

OFF

The minimum collector temperature is adjustable from 1 to 90 °C

72

Code 2

Solar/Group "4"

(cont.)

Coding in the delivered condition

20:0 No extended control functions enabled

22:8 Start temperature differential for central heating backup: 8 K.

Switching output sS is switched ON when the temperature at sensor / exceeds the temperature at sensor aÖ by the selected value.

Possible change

20:1 Auxiliary function for DHW

20:2 heating

Differential temperature

20:3

20:4 control 2

Differential temperature control 2 and auxiliary function

Differential temperature control 2 for central heating backup

20:5

20:6

20:7

Thermostat function

Thermostat function and auxiliary function

Solar heating via external heat exchanger without additional temperature sensor

20:8

20:9

22:2 to

22:30

Solar heating via external heat exchanger with additional temperature sensor

Solar heating of two DHW cylinders

Start temperature differential for central heating backup is adjustable from

21 to 30 K

73

Code 2

Solar/Group "4"

(cont.)

Coding in the delivered condition

23:4 Stop temperature differential for central heating backup: 4 K.

Switching output sS is switched OFF when the temperature at sensor / falls below the stop point. The stop point is the sum of the temperature at sensor aÖ and the value selected for the stop temperature differential.

24:40 Start temperature for the thermostat function

40 °C.

Start temperature for the thermostat function

≤ stop temperature for the thermostat function:

Thermostat function e.g.

for reheating. Switching output sS is switched ON when the temperature at sensor / falls below the start temperature for the thermostat function.

Start temperature for thermostat function > stop temperature for thermostat function:

Thermostat function e.g.

for utilising excess heat.

Switching output sS is switched ON when the temperature at sensor / exceeds the start temperature for the thermostat function.

Possible change

23:2 Stop temperature differento

23:30 tial for central heating backup is adjustable from 1 to 29 K

24:0 to

24:100

Start temperature for thermostat function is adjustable from 0 to 100 K

74

Code 2

Solar/Group "4"

(cont.)

Coding in the delivered condition

25:50 Stop temperature for the thermostat function

50 °C.

Start temperature for the thermostat function

≤ stop temperature for the thermostat function:

Thermostat function e.g.

for reheating. Switching output sS is switched

OFF when the temperature at sensor / exceeds the start temperature for the thermostat function.

Start temperature for thermostat function > stop temperature for thermostat function:

Thermostat function e.g.

for utilising excess heat.

Switching output sS is switched OFF when the temperature at sensor / falls below the start temperature for the thermostat function.

26:1 Priority for DHW cylinder

1 – with alternate heating

Only when setting code

20:8.

Possible change

25:0 Start temperature for therto

25:100 mostat function is adjustable from 0 to 100 K

26:0

26:2

26:3

26:4

Priority for DHW cylinder 1

– without alternate heating

Priority for DHW cylinder 2

– without alternate heating

Priority for DHW cylinder 2

– with alternate heating

Alternate heating without priority for one DHW cylinder

75

Code 2

Solar/Group "4"

(cont.)

Coding in the delivered condition

27:15 Alternate heating time

15 min.

The DHW cylinder without priority is heated at most for the duration of

28:3 the set alternate heating time if the DHW cylinder with priority is heated up.

Alternate pause duration

3 min.

After the set alternate heating time for the DHW cylinder without priority has expired, the rise in collector temperature is captured during the alternate heating time.

Possible change

27:5 The alternate heating time to

27:60 is adjustable from 5 to

60 min

28:1 to

28:60

The alternate pause duration is adjustable from 1 to

60 min

Heating circuit 1, heating circuit 2, heating circuit 3/Group "5"

Select "Heating circuit ..." for weather-compensated control units (see page 55).

Select "5" for constant temperature control units (see page 55).

Coding

Coding in the delivered condition

A0:0

A1:0

Without remote control

(only for weather-compensated control units)

All settings that can be made at the remote control can be executed (only for constant temperature control units)

Possible change

A0:1 With Vitotrol 200A (automatic recognition)

A0:2

A1:1

With Vitotrol 300A (automatic recognition)

Only party mode can be set at the remote control

76

Code 2

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

A2:2 Cylinder priority applicable to heating circuit pump and mixer

Possible change

A2:0 Without cylinder priority applicable to heating circuit pump and mixer

A2:1 Cylinder priority only applicable to mixer

A2:3 to

A2:15

A3:-9 to

A3:15

Reduced priority applied to mixer (the heating circuit receives a reduced amount of energy)

Heating circuit pump "ON/

OFF" (see the following table)

A3:2 Outside temperature below 1 °C: Heating circuit pump "ON"

Outside temperature above 3 °C: Heating circuit pump "OFF"

!

Please note

When selecting a value below 1 °C, there is a risk of pipes outside the thermal envelope of the building being damaged by frost.

The standby mode, in particular, should be taken into consideration, e.g. during holidays.

-3

-2

-1

-6

-5

-4

0

1

2 to

15

Parameter

Address A3:...

-9

-8

-7

Heating circuit pump

"ON"

-10 °C

-9 °C

-8 °C

-7 °C

-6 °C

-5 °C

-4 °C

-3 °C

-2 °C

-1 °C

0 °C

1 °C to

14 °C

"OFF"

-8 °C

-7 °C

-6 °C

-5 °C

-4 °C

-3 °C

-2 °C

-1 °C

0 °C

1 °C

2 °C

3 °C to

16 °C

77

Code 2

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

A4:0 With frost protection (only for weather-compensated control units)

Possible change

A4:1 No frost protection; this setting is only possible if code

"A3: -9" has been selected.

A5:5 With heating circuit pump logic function (economy circuit): Heating circuit pump "OFF" when the outside temperature (AT) is 1 K higher than the set room temperature (RT set

)

AT > RT set

+ 1 K (only for weather-compensated control units)

A5:0

A5:1 to

A5:15

Note

Observe the information regarding coding address

"A3"

Without heating circuit pump logic function

With heating circuit pump logic function: Heating circuit pump "OFF" (see the following table)

4

5

6

7 to

15

2

3

Parameter address

A5:...

1

With heating circuit pump logic function: Heating circuit pump "OFF"

AT > RT set

+ 5 K

AT > RT set

+ 4 K

AT > RT set

+ 3 K

AT > RT set

+ 2 K

AT > RT set

+ 1 K

AT > RT set

AT > RT set

- 1 K

AT > RT set

- 9 K

78

Code 2

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

A6:36

A7:0

A8:1

A9:7

Extended economy function disabled (only for weather-compensated control units)

Without mixer economy function (only for a weather-compensated control unit and heating circuit with mixer)

Heating circuit with mixer creates a demand for the internal circulation pump

(only for weather-compensated control units)

With pump idle time:

Heating circuit pump

"OFF" if the set value changes through a change in operating mode or through a change in the set room temperature (only for weather-compensated control units)

A9:0

A9:1 to

A9:15

Possible change

A6:5 Extended economy control to

A6:35 enabled, i.e. the burner and heating circuit pump will be switched OFF and the mixer closed at a variable adjustable value between 5 and 35 °C plus 1 °C. Base value is the adjusted outside temperature. This value is based on the actual outside temperature and a time constant that takes the cooling down of an average building into consideration.

A7:1 With mixer economy function (extended heating circuit pump logic):

Heating circuit pump also

"OFF":

■ If a mixer has been closed for longer than

20 min.

Heating pump "ON":

■ If the mixer changes to control function

■ If there is a risk of frost

A8:0 Heating circuit with mixer creates no demand for the internal circulation pump

Without pump idle time

With pump idle time; adjustable from 1 to 15

79

Code 2

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

b0:0 b2:8 b5:0

With remote control:

Heating mode/reduced mode: Weather-compensated (only for weathercompensated control units; change the code only for the heating circuit with mixer)

With remote control and for the heating circuit, operation with room temperature hook-up must be programmed: Room influence factor 8 (only for weather-compensated control units; change the code only for the heating circuit with mixer)

With remote control: No room temperaturedependent heating circuit pump logic function (only for weather-compensated control units; change the code only for the heating circuit with mixer) b5:1 to b5:8

Possible change

b0:1 Heating mode: Weathercompensated

Reduced mode: With room b0:2 temperature hook-up

Heating mode: With room temperature hook-up

Reduced mode: Weatherb0:3 b2:0 compensated

Heating mode/reduced mode: With room temperature hook-up

Without room influence b2:1 to b2:64

Room influence factor adjustable from 1 to 64

Heating circuit pump logic function, see the following table:

4

5

6

7

8

2

3

Parameter address b5:...

1

With heating circuit pump logic function:

Heating circuit pump "OFF" Heating circuit pump "ON"

RT actual

> RT set

+ 5 K RT actual

< RT set

+ 4 K

RT actual

> RT set

+ 4 K

RT actual

> RT set

+ 3 K

RT actual

> RT set

+ 2 K

RT

RT

RT actual actual actual

< RT

< RT

< RT set set set

+ 3 K

+ 2 K

+ 1 K

RT actual

> RT set

+ 1 K

RT actual

> RT set

RT actual

> RT set

- 1 K

RT actual

> RT set

- 2 K

RT actual

< RT set

RT actual

< RT set

- 1 K

RT actual

< RT set

- 2 K

RT actual

< RT set

- 3 K

80

Code 2

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

C5:20 Electronic minimum flow temperature limit 20 °C

(only for weather-com-

C6:74 pensated control units)

Electronic maximum flow temperature limited to

74 °C (only for weathercompensated control units) d3:14 d4:0 d5:0

Possible change

C5:1 to

C5:127

C6:10 to

C6:127

Heating curve slope =

1.4

d3:2 to d3:35

Heating curve level = 0 d4:–13 to

The external heating program changeover changes the heating prod4:40 d5:1 gram to "Constant operation with reduced room temperature" or "Standby mode" (only for weathercompensated control units)

Minimum limit adjustable from 1 to 127 °C (limited by boiler-specific parameters)

Maximum limit adjustable from 10 to 127 °C (limited by boiler-specific parameters)

Heating curve slope adjustable from 0.2 to 3.5 (see

page 34)

Heating curve level adjustable from –13 to 40 (see

page 34)

The external heating program changeover changes to "Constant operation with standard room temperature" (independent of coding address 3A, 3b and

3C) d6:0 d7:0

Heating circuit pump stays in control mode at signal "External blocking"

Heating circuit pump stays in control mode at signal "External demand" d6:1 d6:2 d7:1 d7:2

Heating circuit pump stops at signal "External blocking" (subject to coding addresses 3A, 3b and 3C)

Heating circuit pump starts at signal "External blocking" (subject to coding addresses 3A, 3b and 3C)

Heating circuit pump stops at signal "External demand" (subject to coding addresses 3A, 3b and 3C)

Heating circuit pump starts at signal "External blocking" (subject to coding addresses 3A, 3b and 3C)

81

Code 2

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

d8:0

E2:50

E5:0

E6:...

E7:30

No heating program changeover via extension

EA1

With remote control: No display correction for the actual room temperature

(only for weather-compensated control units)

Without external variable speed heating circuit pump (only for weathercompensated control units)

Maximum speed of the variable speed heating circuit pump in % of the max. speed in standard mode. Value is defaulted by boiler-specific parameters (only for weathercompensated control units).

Minimum speed of the variable speed heating circuit pump: 30 % of the maximum speed (only for weather-compensated control units)

E6:0 to

E6:100

E7:0 to

E7:100

Possible change

d8:1 Heating program changeover via input DE1 at extension EA1 d8:2 d8:3

E2:0 to

E2:49

Heating program changeover via input DE2 at extension EA1

Heating program changeover via input DE3 at extension EA1

Display correction -5 K to

Display correction -0.1 K

E2:51 to

E2:99

E5:1

Display correction +0.1 K to

Display correction +4.9 K

With external variable speed heating circuit pump

(automatic recognition)

Maximum speed adjustable from 0 to 100 %

Minimum speed adjustable from 0 to 100 % of the maximum speed

82

Code 2

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

E8:1 Minimum speed in operation with reduced room temperature subject to the setting in coding address "E9" (only for weather-compensated control units)

E9:45 Speed of the variable speed heating circuit pump: 45 % of the maximum speed during operation with reduced room temperature (only for weather-compensated control units)

F1:0 Screed drying function disabled (only for weather-compensated control units)

F2:8

F5:12

Time limit for party mode or external heating program changeover via key:

8 h (only for weathercompensated control units)

*1

Run-on time of the circulation pump in the heating circuit connection set in heating mode: 12 min

(only for constant temperature control units)

Possible change

E8:0 Speed subject to the setting in coding address

"E7"

E9:0 to

E9:100

F1:1 to

F1:6

F1:15

F2:0

F2:1 to

F2:12

F5:0

F5:1 to

F5:20

Speed adjustable from 0 to

100 % of the maximum speed during operation with reduced room temperature

Screed drying function adjustable in accordance with 6 optional temperature/time profiles (see

page 127)

Constant flow temperature

20 °C

No time limit for party mode

*1

Time limit adjustable from 1 to 12h *1

No run-on time for the circulation pump in the heating circuit connection set

Run-on time of the circulation pump in the heating circuit connection set adjustable from 1 to 20 min

*1 Party mode ends automatically in the "Heating and DHW" program, when the system changes over to operation with standard room temperature.

83

Code 2

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

F6:25

F7:25

F8:-5

F9:-14

In the "DHW only" operating mode, the circulation pump in the heating circuit connection set is permanently ON (only for constant temperature control units)

In the "Standby" operating mode, the circulation pump in the heating circuit connection set is permanently ON (only for constant temperature control units)

Temperature limit for terminating the reduced mode -5 ºC, see example

on page 130.

Observe the setting of coding address "A3" (only for weather-compensated control units)

Temperature limit for raising the reduced set room temp. -14 ºC, see exam-

ple on page 130 (only for

weather-compensated control units)

F9:+10 to

F9:-60

Possible change

F6:0 In the "DHW only" operating mode, the circulation pump in the heating circuit connection set is permanently OFF

F6:1 to

F6:24

In the "DHW only" operating mode, the circulation pump in the heating circuit connection set will be started 1 to 24 times per day for

10 min respectively

F7:0

F7:1 to

F7:24

F8:+10 to

F8:-60

F8:-61

In the "Standby" operating mode, the circulation pump in the heating circuit connection set is permanently

OFF

In the "Standby" operating mode, the circulation pump in the heating circuit connection set will be started 1 to 24 times per day for

10 min respectively

Temperature limit adjustable from

+10 to -60 °C

Function disabled

Temperature limit for raising the set room temperature to the value selected for standard mode adjustable from

+10 to -60 °C

84

Code 2

Heating circuit 1, heating circuit 2, heating…

(cont.)

Coding in the delivered condition

FA:20 Raising the set boiler water temperature or the set flow temperature when changing from operation with reduced

Fb:30 room temperature to operation with standard room temperature, by

20 %. See example on

page 131 (only for

weather-compensated control units)

Duration for raising the set boiler water temperature or the set flow temperature (see coding address "FA") 60 min.

See example on

page 131 (only for

weather-compensated control units)

Possible change

FA:0 Temperature rise adjustato

FA:50 ble from 0 to 50 %

Fb:0 to

Fb:150

Duration adjustable from 0 to 300 min; one step

≙ 2 min

85

Diagnosis and service scans

Calling up the service menu

Only for weather-compensated control units

Press OK and å simultaneously for approx. 4 s.

Service menu overview

Service

Diagnosis

Actuator test

Coding level 1

Coding level 2

Fault history

Service functions

Terminate service?

General

Heating circuit 1 HC1

Heating circuit 2 HC2

Heating circuit 3 HC3

DHW

Solar

Brief scan

Reset data

Subscriber check

Service PIN

Service reset

Filling

Venting

Max. output

Diagnosis

Scanning operating data

■ Weather-compensated control unit:

Operating data can be scanned in six areas. See "Diagnosis" in the service menu overview.

Operating data on heating circuits with mixers and solar can only be scanned if the components are installed in the system.

For further information on operating data, see chapter "Brief scan".

■ Constant temperature control unit:

Operating data can be scanned in the "i" menu.

Operating instructions

86

For further information on operating data, see chapter "Brief scan".

Diagnosis and service scans

Diagnosis

(cont.)

Note

"- - -" appears on the display if a sensor that has been scanned is faulty.

Calling up operating data

Weather-compensated control unit

3. Select required group, e.g. "Gen-

eral".

1. Press OK and å simultaneously for approx. 4 s.

Constant temperature control unit

Operating instructions, chapter

"Scanning information"

2. "Diagnosis"

Resetting operating data

Saved operating data (e.g. hours run) can be reset to 0.

The value "Adjusted outside temp" is reset to the actual value.

Weather-compensated control unit

4. Select required value (e.g. "Burner

starts") or "All details".

1. Press OK and å simultaneously for approx. 4 s.

Constant temperature control unit

2. "Diagnosis"

3. "Reset data"

Operating instructions, chapter

"Scanning information"

Brief scan

In the brief scan, you can scan temperatures, software versions and connected components, for example.

Weather-compensated control unit

1. Press OK and å simultaneously for approx. 4 s.

2. "Diagnosis"

3. "Brief scan".

4. Press OK.

The display shows 9 lines with 6 fields each.

87

Diagnosis and service scans

Diagnosis

(cont.)

1:

2:

3:

4:

Diagnose Kurzabfrage

0

0

1 F

0 0

0

0

0

0

0

0

A

0

0

0

Wählen mit Ø

0

0

1 2

0 0

0

0

For an explanation of the relevant values in the individual lines and fields, see the following table:

Line (brief Field scan)

1 2 3 4 5 6

1:

2:

3:

Software version

Control unit

System schemes 01 to 10

Switching state of flow switch

(only for combi boilers)

Software version

Programming unit

Equipment version

Number of KM

BUS subscribers

Software version

Mixer extension

0: no mixer extension

Maximum demand temperature

Software version

Solar control module SM1

Burner control unit version

Software version

LON module

Software version

External extension

0: no external extension

4:

5:

6:

Software version

Burner control unit

0: no external demand

1: exter-

0: no external blocking

1: external demand nal blocking

Number of LON subscribers

Type

Burner control unit

Appliance type

External hook-up 0 - 10 V

Display in °C

0: no external hook-up

Check digit

Max. output

Details in %.

88

Diagnosis and service scans

Diagnosis

(cont.)

Line (brief scan)

7:

8:

9:

Field

1 2

Heating circuit A1

(without mixer)

Remote Software control

0: w/o version

Remote

1: Vitotrol

200A

2: Vitotrol

300A or

Vitohome control

0: no remote control

3 4

Heating circuit M2

(with mixer)

Remote Software control

0: w/o version

Remote

1: Vitotrol

200A

2: Vitotrol

300A or

Vitohome control

0: no remote control

5 6

Heating circuit M3

(with mixer)

Remote Software control

0: w/o version

Remote

1: Vitotrol

200A

2: Vitotrol

300A or

Vitohome control

0: no remote control

Internal circulation pump

Variable speed pump

0: w/o

1: Wilo

2: Grundfos

Software version variable speed pump

0: no variable speed pump

Heating circuit pump to connection extension

Variable speed

Software version

Variable speed

Software version pump

0: w/o

1: Wilo

2: Grundfos

Internal details for calibration

Variable speed pump

0: no variable speed pump pump

0: w/o

1: Wilo

2: Grundfos

Variable speed pump

0: no variable speed pump

Software version

Extension AM1

Software version

Extension

EA1

Constant temperature control unit

1. Press OK and å simultaneously for approx. 4 s.

"Ü" flashes on the display.

2. Confirm with OK.

3. Select scan with V/v. For example, "b" for "Max. output" (see following table):

4. Confirm selected scan with OK.

89

E

3

A

4

5 b

Diagnosis and service scans

Diagnosis

(cont.)

For explanations of individual scans, see the following table:

Brief scan Display

0

1

C c

Switching state of flow switch

(only for combi boilers)

Software version

Solar control module

SM1

System schemes 1 to 2

Software version

Control unit

Software version

Burner control unit

External extension software version

0: no external extension

Software version

Programming unit

External hook-up 0 - 10 V

Display in °C

0: no external hook-up

Set boiler water temperature

Highest demand temperature

Burner control unit type Appliance type

Set cylinder temperature

Max. output in %

Software version

Multi-boiler control unit

Diverter valve status

0: not installed

1: Heating

2: Central position

3: DHW heating

Boiler coding card (hexadecimal)

Version

Appliance

Version

Burner control unit

90

Diagnosis and service scans d

F

1

F

2

F

3

F

4

F

5

F

6

F

7

Diagnosis

(cont.)

Brief scan Display

Variable speed pump

0 w/o

1 Wilo

2 Grundfos

Software version

Variable speed pump

0: no variable speed pump

Code 53 setting

Internal details for calibration

Software version

Output A1 configuration

Extension AM1

Output A1 switching state

Output A2 configuration

(value corresponds to code 33 setting)

0: OFF

1: ON

Extension EA1

(value corresponds to code 34 setting)

Output 157 configuration

(value corresponds to code 36 setting)

Software version

Output 157 switching state

0: OFF

1: ON

Input DE1 switching state

0: open

1: closed

Input DE2 switching state

0: open

1: closed

External hook-up 0 - 10 V

Display in %

Solar control module SM1

Stagnation time of the solar thermal system in h

Output A2 switching state

0: OFF

1: ON

Input DE3 switching state

0: open

1: closed

Night circulation of the solar thermal system (number)

Monitoring reheating suppression for heating (number)

91

Diagnosis and service scans

Diagnosis

(cont.)

Brief scan

F

8

F

9

Display

Software version

Solar central heating backup

0: not enabled

1: enabled

Open Therm extension (if installed)

DHW heating status

External hook-up 0 - 10 V

Display in %

Output 22 switching state

0: OFF

1: ON

Checking outputs (relay test)

Weather-compensated control unit

1. Press OK and å simultaneously for approx. 4 s.

2. "Actuator test"

The following relay outputs can be controlled subject to system design:

Display Explanation

Start base load

Start full load

Start internal output

Start valve heating

Start valve centre

Start valve cylinder

Burner operates at minimum output; internal pump starts

Burner operates at maximum output; internal pump starts

Internal output sÖ (internal pump) enabled

Diverter valve set to heating mode

Diverter valve in central position (filling/draining)

Diverter valve set to DHW mode

Start htg circ pump HC2 Heating circuit pump output enabled (extension to heating circuit with mixer)

Open mixer HC2 "Mixer open" output enabled (extension to heating circuit with mixer)

Close mixer HC2 "Mixer closed" output enabled (extension to heating circuit with mixer)

Start htg circ pump HC3 Heating circuit pump output enabled (extension to heating circuit with mixer)

92

Diagnosis and service scans

Checking outputs (relay test)

(cont.)

Display

Open mixer HC3

Explanation

"Mixer open" output enabled (extension to heating circuit

Close mixer HC3 with mixer)

"Mixer closed" output enabled (extension to heating circuit with mixer)

Start outp. int. exten. H1 Output at internal extension enabled

Start AM1 output 1

Start AM1 output 2

Start EA1 output 1

Start solar circuit pump

Output A1 at extension AM1 enabled

Output A2 at extension AM1 enabled

Contacts P - S at plug aBJ for extension EA1 closed

Solar circuit pump sF output at solar control module SM1 enabled

Start solar circ pmp min Solar circuit pump output at solar control module SM1 switched to minimum speed

Start solar circ pmp max Solar circuit pump output at solar control module SM1 switched to maximum speed

Start sol. output sS Output sS at solar control module SM1 enabled

Constant temperature control unit

1. Press OK and å simultaneously for approx. 4 s.

"Ü" flashes on the display.

2. Select Ú " " and confirm with OK.

4. Confirm selected actuator with OK.

The display shows the number for the activated actuator and "ON".

3. Select required actuator (output) with

V

/v (see following table):

4

5

2

3

6

10

15

The following actuators (relay outputs) can be controlled subject to system design:

Display

1

Explanation

Burner operates at minimum output; internal pump starts

Burner operates at maximum output; internal pump starts

Internal output sÖ (internal pump) is enabled

Diverter valve set to heating mode

Diverter valve in central position (filling/draining)

Diverter valve set to DHW mode

Internal extension output enabled

Solar circuit pump sF output at solar control module SM1 enabled

93

Diagnosis and service scans

Checking outputs (relay test)

(cont.)

18

19

20

21

Display

16

17

Explanation

Solar circuit pump output at solar control module SM1 switched to minimum speed

Solar circuit pump output at solar control module SM1 switched to maximum speed

Output sS at solar control module SM1 enabled

Contacts P - S at plug aBJ for extension EA1 closed

Output A1 at extension AM1 enabled

Output A2 at extension AM1 enabled

94

Troubleshooting

Fault display

Weather-compensated control unit

If there is a fault, the red fault indicator

A flashes. " " flashes on the display and "Fault" is shown.

A

0

1 2 3

4 bar

R

The fault code is displayed with OK. For an explanation of the fault code, see the following pages.

For some faults, the type of fault is also displayed in plain text.

Acknowledging a fault

Follow the instructions on the display.

Note

The fault message is shown in the standard display of the short menu.

A fault messaging facility, if connected, will be switched OFF.

If an acknowledged fault is not remedied, the fault message will be re-displayed the following day and the fault message facility restarted.

Calling up acknowledged faults

Select "Fault" in the standard menu.

The current faults will be displayed in a list.

Calling up fault codes from the fault memory (fault history)

The 10 most recent faults (including resolved ones) are saved and can be scanned.

Faults are sorted by date.

1. Press OK and å simultaneously for approx. 4 s.

2. "Fault history"

3. "Display?"

95

96

Troubleshooting

Fault display

(cont.)

Constant temperature control unit

If there is a fault, the red fault indicator

A flashes. The two-digit fault code and

(subject to the type of fault) " " or " " flash on the programming unit display.

Other current faults can be displayed with / . For an explanation of the fault codes, see the following pages.

1

A

0

1 2 3

4 bar

R

5 0

ã

Example: Fault code "50"

Acknowledge fault

Press OK; the standard display is shown again.

A fault messaging facility, if connected, will be switched OFF.

If an acknowledged fault is not remedied, the fault message will be re-displayed the following day and the fault message facility restarted.

Calling up acknowledged faults

Press OK for approx. 4 s.

The 10 most recent faults (including resolved ones) are saved and can be scanned.

Calling up fault codes from the fault memory (fault history)

The 10 most recent faults (including those remedied) are saved and can be called up.

Faults are sorted by date.

1. Press OK and å simultaneously for approx. 4 s.

2. Select "ã" and enable fault history with OK.

3. Select fault messages with / .

Troubleshooting

Fault codes

Displayed fault code

10 X

Const.

Weath.comp.

System characteristics

Cause

X

18

20

28

30

38

40

44

X

X

X

X

X

X

X

X

X

X

X

X

Measures

Regulates as if the outside temperature were 0 °C

Regulates as if the outside temperature were 0 °C

Short circuit, outside temperature sensor

Lead break, outside temperature sensor

Regulates without flow temperature sensor (low loss header)

Regulates without flow temperature sensor (low loss

Short circuit, system flow temperature sensor

Lead break, system flow temperature sensor header)

Burner blocked Short circuit, boiler water temperature sensor

Burner blocked Lead break, boiler water temperature sensor

Mixer closes

Mixer closes

Short circuit, flow temperature sensor, heating circuit

2 (with mixer)

Short circuit, flow temperature sensor, heating circuit

3 (with mixer)

Check the outside temperature sensor (see

page 109)

Check the outside temperature sensor (see

page 109)

Check the low loss header sensor (see

page 111)

Check the low loss header sensor (see

page 111)

Check the boiler water temperature sensor (see

page 111)

Check the boiler water temperature sensor (see

page 111)

Check flow temperature sensor

Check flow temperature sensor

97

Troubleshooting

Fault codes

(cont.)

Displayed fault code

48

Const.

Weath.comp.

System characteristics

Cause

X

4C

50

58

90

91

92

93

94

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Measures

Mixer closes

Mixer closes

Lead break, flow temperature sensor, heating circuit

2 (with mixer)

Lead break, flow temperature sensor, heating circuit

3 (with mixer)

No DHW heating

Short circuit, cylinder temperature sensor

Lead break, No DHW heating cylinder temperature sensor

Control mode Short circuit, temperature sensor /

Control mode Short circuit, temperature sensor aÖ

No DHW heating

Short circuit, collector temperature sensor

Check flow temperature sensor

Check flow temperature sensor

Control mode Short circuit,

No DHW heating cylinder temperature sensor

Short circuit, cylinder temperature sensor

Check the cylinder temperature sensor (see

page 111)

Check the cylinder temperature sensor (see

page 111)

Check sensor / on the solar control module

Check sensor aÖ on the solar control module

Check temperature sensor & on the solar control module or the Vitosolic sensor

Check temperature sensor at connection S3 to the

Vitosolic 100

Check temperature sensor % on the solar control module or the Vitosolic sensor

98

Troubleshooting

Fault codes

(cont.)

Displayed fault code

98 X

Const.

Weath.comp.

System characteristics

Cause

X

99

9A

9b

9C

9E

9F

A6

A7

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Measures

Control mode Lead broken, temperature sensor /

Control mode Lead broken,

No DHW heating temperature sensor aÖ

Lead break, collector temperature sensor

Control mode Lead break, cylinder tem-

No DHW heating perature sensor

Lead break, cylinder temperature sensor

Check sensor / on the solar control module

Check sensor aÖ on the solar control module

Check temperature sensor & on the solar control module or the Vitosolic sensor

Check temperature sensor at connection S3 to the

Vitosolic 100

Check temperature sensor % on the solar control module or the Vitosolic sensor

Check solar circuit pump and solar circuit. Acknowledge fault message

Control mode No flow rate in the collector circuit or flow rate too low, or temperature limiter has responded

Control mode Solar control module or

Vitosolic faulty

Control mode Impressed current anode

Control mode as per delivered condition faulty

Programming unit faulty

Replace solar control module or

Vitosolic

Replace impressed current anode

Replace programming unit

99

Troubleshooting

Fault codes

(cont.)

Displayed fault code

b0 X

Const.

Weath.comp.

System characteristics

Cause

X b1 b5 b7 b8 bA bb bC

X

X

X

X

X

X

X

X

X

X

X

Measures

Burner blocked Short circuit, flue gas temperature sensor

Control mode as per delivered condition

Communication error, programming unit

Check the flue gas temperature sensor

Check connections and replace the programming unit if required

Control mode as per delivered condition

Internal fault

Burner blocked Boiler coding card faulty

Burner blocked Lead break, flue gas temperature sen-

Replace the control unit

Plug in boiler coding card or replace, if faulty

Check the flue gas temperature sensor

Mixer regulates to a flow temperature of 20 °C sor

Communication error, extension kit for heating circuit 2 (with mixer)

Check extension kit connections and codes

Mixer regulates to a flow temperature of 20 °C

Communication error, extension kit for heating circuit 3 (with mixer)

Check extension kit connections and codes

Control mode without remote control

Communication error, remote control Vitotrol heating circuit

1 (without mixer)

Check connections, cable, coding address "A0" and remote control DIP switches (see

page 132)

100

Troubleshooting

Fault codes

(cont.)

Displayed fault code

bd

Const.

Weath.comp.

System characteristics

Cause

X bE bF

C1

C2

C3

C4

C5

X

X

X

X

X

X

X

X

X

X

X

X

Measures

Control mode without remote control

Control mode without remote control

Communication error, remote control Vitotrol heating circuit

2 (with mixer)

Communication error, remote control Vitotrol heating circuit

3 (with mixer)

Control mode Incorrect

LON communication module

Control mode Communication error extension

EA1

Control mode Communication error, solar control module or

Vitosolic

Control mode Extension

AM1 communication error

Control mode Communication error,

Open Therm extension

Control mode, max. pump speed

Communication error, variable speed internal pump

Check connections, lead, coding address "A0" and remote control settings (see

page 132)

Check connections, lead, coding address "A0" and remote control settings (see

page 132)

Replace the LON communication module

Check electrical connections

Check solar control module or

Vitosolic

Check electrical connections

Check Open

Therm extension

Check the setting of coding address

"30"

101

Troubleshooting

Fault codes

(cont.)

Displayed fault code

C6

Const.

Weath.comp.

System characteristics

Cause

X

C7

C8

Cd

CE

CF

X

X

X

X

X

X

X

X

Measures

Control mode, max. pump speed

Communication error, external variable speed heating circuit pump, heating circuit 2

(with mixer)

Control mode, max. pump speed

Control mode, max. pump speed

Communication error, external variable speed heating circuit pump, heating circuit 1

(without mixer)

Communication error, external variable speed heating circuit pump, heating circuit 3

(with mixer)

Control mode Communication error,

Vitocom 100

(KM BUS)

Control mode Communication error, ext.

extension

Control mode Communication error,

LON communication module

Check setting of coding address

"E5"

Check setting of coding address

"E5"

Check setting of coding address

"E5"

Check connections, Vitocom 100 and coding address "95"

Check connections and coding address "2E"

Replace the LON communication module

102

Troubleshooting

Fault codes

(cont.)

Displayed fault code

d6 X

Const.

Weath.comp.

System characteristics

Cause

X d7 d8 dA db dC dd dE

X

X

X

X

X

X

X

X

X

Measures

Control mode Input DE1 fault at extension EA1

Control mode Input DE2 fault at extension EA1

Control mode Input DE3 fault at extension EA1

Control mode without room influence

Short circuit, room temperature sensor, heating circuit

1 (without mixer)

Control mode without room influence

Control mode without room influence

Control mode without room influence

Control mode without room influence

Short circuit, room temperature sensor, heating circuit

2 (with mixer)

Short circuit, room temperature sensor, heating circuit

3 (with mixer)

Lead break, room temperature sensor, heating circuit

1 (without mixer)

Lead break, room temperature sensor, heating circuit

2 (with mixer)

Check connection to input DE1

Check connection to input DE2

Check connection to input DE3

Check room temperature sensor, heating circuit 1

Check room temperature sensor, heating circuit 2

Check room temperature sensor, heating circuit 3

Check room temperature sensor for heating circuit 1 and remote control settings (see

page 132)

Check room temperature sensor for heating circuit 2 and remote control settings (see

page 132)

103

Troubleshooting

Fault codes

(cont.)

Displayed fault code

dF

Const.

Weath.comp.

System characteristics

Cause

X

E0

E4

E5

E8

E9

EA

X

X

X

X

X

X

X

X

X

X

X

Measures

Control mode without room influence

Control mode Fault external

LON subscriber

Burner blocked Fault, supply voltage 24 V

Burner blocked Fault, flame amplifier

Burner in a fault state

Burner in a fault state

The ionisation current lies outside the permissible range

The ionisation current lies outside the permissible range during calibration

Burner in a fault state

Lead break, room temperature sensor, heating circuit

3 (with mixer)

The ionisation current lies outside the permissible range during calibration

Check room temperature sensor for heating circuit 3 and remote control settings (see

page 132)

Check connections and LON subscribers

Replace the control unit.

Replace the control unit.

Check the ionisation electrode and cable.

Press reset button

R.

Check the ionisation electrode and cable.

Check the flue gas system for tightness.

Press reset button

R.

Check the ionisation electrode and cable.

Press reset button

R.

104

Troubleshooting

Fault codes

(cont.)

Displayed fault code

Eb X

Const.

Weath.comp.

System characteristics

Cause

X

EC

Ed

EE

X

X

X

X

X

X

Measures

Burner in a fault state

Burner in a fault state

Burner in a fault state

Burner in a fault state

Heat draw-off repeatedly too low during calibration

Initiate a heat draw-off. Switch the boiler OFF and

ON again.

Press reset button

R.

The ionisation current lies outside the permissi-

Check the ionisation electrode and cable.

Press reset button

R.

ble range during calibration

Internal fault Replace the control

Flame signal is not present or too weak at burner start unit.

Check the ionisation electrode and connecting cable, measure the ionisation current, check the gas supply (gas pressure and gas flow limiter), check the gas train, ignition, ignition module, ignition electrodes and the condensate drain.

Press reset button

R.

105

Troubleshooting

Fault codes

(cont.)

Displayed fault code

EF X

Const.

Weath.comp.

System characteristics

Cause

X

F0

F1

F2

F3

X

X

X

X

X

X

X

X

Measures

Burner in a fault state

The flame is lost immediately after it has built (during the safety time)

Check the gas supply (gas pressure and gas flow limiter), check the flue gas/ventilation air system for flue gas recirculation, check the ionisation electrode

(replace if required).

Press reset button

R.

Burner blocked Internal fault Replace the control

Burner in a fault state

Flue gas temperature limiter has responded unit.

Check the heating system fill level.

Vent the system.

Press reset button

R after the flue sys-

Burner in a fault state

Burner in a fault state

The temperature limiter has responded

Flame signal is already present at burner start tem has cooled down.

Check the heating system fill level.

Check the circulation pump. Vent the system. Check the temperature limiter and connecting cables.

Press reset button

R.

Check the ionisation electrode and connecting cable.

Press reset button

R.

106

Troubleshooting

Fault codes

(cont.)

Displayed fault code

F8 X

Const.

Weath.comp.

System characteristics

Cause

X

F9

FA

FC

Fd

X

X

X

X

X

X

X

X

Measures

Burner in a fault state

Burner in a fault state

Burner in a fault state

Burner in a fault state

Burner in a fault state

The fuel valve closes too late

Fan speed too low during burner start

Fan not at standstill

Gas train faulty or faulty modulation valve control or flue gas path blocked

Fault, combustion controller

Check the gas train. Check both control paths.

Press reset button

R.

Check the fan, the fan connecting cables and power supply; check the fan control.

Press reset button

R.

Check the fan, fan connecting cables and fan control.

Press reset button

R.

Check the gas train. Check the flue gas system.

Press reset button

R.

Check ignition electrodes and connecting cables.

Check whether a strong interference

(EMC) field exists near the appliance.

Press reset button

R.

Replace control unit if the fault persists.

107

Troubleshooting

Fault codes

(cont.)

Displayed fault code

FE X

Const.

Weath.comp.

System characteristics

Cause

X

FF X X

Measures

Burner blocked or in a fault state

Boiler coding card or main

PCB faulty

Burner blocked or in a fault state

Internal fault or reset button R blocked

Press reset button

R. Replace boiler coding card or control unit if the fault persists.

Start the appliance again. Replace the control unit if the appliance will not restart.

108

Troubleshooting

Repairs

Checking the outside temperature sensor (weather-compensated control unit)

X3

109

Troubleshooting

Repairs

(cont.)

200

80

40

20

6

-20 -10 0 10 20 30

Temperature in °C

1. Pull plug "X3" from the control unit.

2. Test the resistance of the outside temperature sensor across terminals

"X3.1" and "X3.2" on the disconnected plug and compare it with the curve.

3. Where actual values deviate severely from the curve values, disconnect the wires at the sensor and repeat test on the sensor itself.

4. Subject to result, replace the lead or the outside temperature sensor.

110

Troubleshooting

Repairs

(cont.)

Checking the boiler water temperature sensor, the cylinder temperature sensor or the flow temperature sensor for the low loss header

A

5

X3

111

Troubleshooting

Repairs

(cont.)

20

6

4

2

0.6

0.4

10 30 50 70 90 110

Temperature in °C

1. ■ Boiler water temperature sensor:

Pull the leads from boiler water temperature sensor A and check the resistance.

■ Cylinder temperature sensor: Pull plug % from the cable harness at the control unit and check the resistance.

■ Flow temperature sensor: Pull plug

"X3" from the control unit and check the resistance across terminals "X3.4" and "X3.5".

2. Check the sensor resistance and compare the actual values with the curve.

3. Replace the sensor in case of severe deviation.

Danger

The boiler water temperature sensor is immersed in the heating water (risk of scalding).

Drain the boiler before replacing the sensor.

Checking the temperature limiter

Check the temperature limiter, if the burner control unit cannot be reset after a fault shutdown, although the boiler water temperature is below approx. 75 °C.

112

Troubleshooting

Repairs

(cont.)

A

1. Pull the leads from temperature limiter A.

2. Check the continuity of the temperature limiter with a multimeter.

3. Remove the faulty temperature limiter.

4. Install a new temperature limiter.

5. After commissioning, press reset button R on the control unit.

113

Troubleshooting

Repairs

(cont.)

Checking the fuse

A

F1

1. Switch OFF the power.

2. Release the side closures and pivot the control unit down.

3. Remove cover A.

4. Check fuse F1 (see connection and wiring diagram).

114

Troubleshooting

Repairs

(cont.)

Extension kit for heating circuit with mixer

Checking the setting of rotary selector S1

The rotary selector on the PCB of the extension kit defines the assignment to the relevant heating circuit.

Heating circuit Rotary selector S1 setting

2

9

10

7

8

2 3 4

6

Heating circuit with mixer M2 (heating circuit 2)

Heating circuit with mixer M3 (heating circuit 3)

4

9

10

7

8

2 3 4

6

Note the rotational direction of the mixer motor during its self-test.

Then set the mixer manually to "Open" again.

Note

The flow temperature sensor must now capture a higher temperature. If the temperature drops, either the motor is turning in the wrong direction or the mixer set is incorrectly fitted.

Mixer installation instructions

Checking the rotational direction of the mixer motor

After being switched ON, the boiler implements a self-test. During this, the mixer is opened and closed again.

Changing the rotational direction of the mixer motor (if required)

gS

1. Remove the upper casing cover of the extension kit.

|

~

BU

Danger

An electric shock can be lifethreatening.

Before opening the boiler, disconnect from the mains voltage, for example at the fuse or the main isolator.

2. At plug gS, swap the cores at terminals "|" and "~".

115

Troubleshooting

Repairs

(cont.)

3. Refit the casing cover.

Checking the Vitotronic 200-H (accessories)

The Vitotronic 200-H is connected to the control unit via the LON. To test the con-

nection, carry out a subscriber check at the boiler control unit (see page 38).

116

Function description

Constant temperature control unit

s

4 8

°C

A

Heating mode

The selected set boiler water temperature will be maintained when a demand is being raised by the room thermostat and the heating program is set to DHW and central heating "G".

The boiler water temperature will be maintained at the default frost protection temperature when there is no demand.

DHW heating

The burner and the circulation pump for cylinder heating are started if the cylinder temperature lies 2.5 K below the set cylinder temperature.

The electronic temperature limiter inside the burner control unit limits the boiler water temperature to 82 °C.

Flow temperature setting range: 20 to

74 °C.

In the delivered condition, the set boiler water temperature is 20 K higher than the set DHW temperature (adjustable via coding address "60"). The burner will be switched OFF and the circulation pump run-on time will begin, if the actual cylinder temperature exceeds the set cylinder temperature by 2.5 K.

117

Function description

Weather-compensated control unit

Boiler temperature

Heating

DHW

Solar energy

Information

Select with

48 °C

(

Heating mode

The control unit determines a set boiler water temperature subject to outside temperature or room temperature (if a room temperature-dependent remote control is connected) and to the slope/ level of the heating curve.

The determined set boiler water temperature is transferred to the burner control unit. From the set and actual boiler water temperatures, the burner control unit calculates the modulation level and regulates the burner accordingly.

DHW heating

The burner and the circulation pump for cylinder heating are started if the cylinder temperature lies 2.5 K below the set cylinder temperature.

The electronic temperature limiter inside the burner control unit limits the boiler water temperature to 82 °C.

In the delivered condition, the set boiler water temperature is 20 K higher than the set DHW temperature (adjustable via coding address "60"). The burner will be switched OFF and the circulation pump run-on time will begin, if the actual cylinder temperature exceeds the set cylinder temperature by 2.5 K.

118

Function description

Weather-compensated control unit

(cont.)

Boosting DHW heating

The booster heating function is activated if a switching period is selected for the fourth time phase.

The set temperature value for the heating boost is adjustable in coding address

"58".

Internal extensions (accessories)

Internal extension H1

The internal extension is integrated into the control unit housing. The following alternative functions can be connected to relay output sK. The function is allocated via coding address "53":

■ Central fault message (coding address "53:0")

■ DHW circulation pump (coding address "53:1") (only for weathercompensated operation)

119

Function description

Internal extensions (accessories)

(cont.)

■ Heating circuit pump for a heating circuit without mixer (coding address

"53:2")

■ Circulation pump for cylinder heating

(coding address "53:3")

Internal extension H2

An external safety valve can be connected to gD.

The internal extension is integrated into the control unit housing. The following alternative functions can be connected to relay output sK. The function is allocated via coding address "53":

■ Central fault message (coding address "53:0")

■ DHW circulation pump (coding address "53:1") (only for weathercompensated operation)

120

■ Heating circuit pump for heating circuit without mixer (coding address "53:2")

■ Circulation pump for cylinder heating

(coding address "53:3")

An extractor can be switched OFF via connection aBJ when the burner starts.

External extensions (accessories)

Extension AM1

Function description

A1 Circulation pump

A2 Circulation pump fÖ Power supply [terminals] fÖA Power supply terminal for additional accessories aVG KM BUS

121

Function description

External extensions (accessories)

(cont.)

Functions

One of the following circulation pumps can be connected to each of the terminals A1 and A2:

■ Heating circuit pump for the heating circuit without mixer

■ Circulation pump for cylinder heating

■ DHW circulation pump

Allocating functions for outputs A1 and A2

Select the function for these outputs via the codes on the boiler control unit:

■ Output A1: Code 33

■ Output A2: Code 34

Function

DHW circulation pump sK

Output A1

33:0

Heating circuit pump sÖ 33:1 (delivered cond.)

Circulation pump for cylinder heating sA 33:2

Code

Output A2

34:0 (delivered cond.)

34:1

34:2

122

External extensions (accessories)

(cont.)

Extension EA1

Function description

DE1

DE2

DE3

Digital input 1

Digital input 2

Digital input 3

0 - 10 V 0 - 10 V input fÖ Power supply [terminals] fÖA Power supply terminal for additional accessories aBJ aVG

Central fault message/feed pump/DHW circulation pump

(zero volt)

KM BUS

123

Function description

External extensions (accessories)

(cont.)

Digital data inputs DE1 to DE3

The following functions can be connected alternatively:

■ External heating program changeover for each heating circuit

■ External blocking

■ External blocking with fault message input

■ External demand with minimum boiler water temperature

■ Fault message input

■ Brief operation of the DHW circulation pump

The hooked-up contacts must correspond to protection class II.

Input function assignment

Select the input functions via the codes on the boiler control unit:

■ DE1: Code 3A

■ DE2: Code 3b

■ DE3: Code 3C

Assigning the heating program changeover function to the heating circuits

Assign the heating program changeover function for the respective heating circuit via code d8 at the boiler control unit:

■ Changeover via input DE1: Code d8:1

■ Changeover via input DE2: Code d8:2

■ Changeover via input DE3: Code d8:3

Select the effect of the heating program changeover via code d5:

Set the duration of the changeover via code F2.

Effect on the pumps of external blocking function

The effect on the internal circulation pump is selected with code 3E.

The effect on the relevant heating circuit pump is selected with code d6.

The effect on an external circulation pump for cylinder heating (connection to extension AM1) is selected with code

5E.

Effect on the pumps of the external demand function

The effect on the internal circulation pump is selected with code 3F.

The effect on the relevant heating circuit pump is selected with code d7.

The effect on an external circulation pump for cylinder heating (connection to extension AM1) is selected with code

5F.

DHW circulation pump runtime for brief operation

The runtime is set in code 3d.

Analogue input 0 - 10 V

The 0 – 10 V hook-up provides an additional set boiler water temperature:

0 - 1 V taken as "no default set boiler

1 V water temperature".

≙ set value 10 °C

10 V

≙ set value 100 °C

124

Function description

External extensions (accessories)

(cont.)

Output aBJ

The following functions can be connected to output aBJ:

■ Feed pump to substation or

■ DHW circulation pump or

■ Fault message facility

Function assignment

Select the function of output aBJ via code 36 at the boiler control unit.

Control functions

External heating program changeover

The "External heating program changeover" function is connected via extension

EA1. There are 3 inputs available at extension EA1 (DE1 to DE3).

Heating program changeover

Input DE1

Input DE2

Input DE3

The function is selected via the following codes:

Code

3A:1

3b:1

3C:1

Assign the heating program changeover function for the respective heating circuit via code d8 at the boiler control unit:

Heating program changeover

Changeover via input DE1

Changeover via input DE2

Changeover via input DE3

You can select which direction the heating program changeover takes in coding address "d5":

Code

d8:1 d8:2 d8:3

125

Function description

Control functions

(cont.)

Heating program changeover

Changeover towards "Permanently reduced" or "Permanent standby" mode (subject to the selected set value)

Changeover towards "Constant heating mode"

Code

d5:0 d5:1

The duration of the heating program changeover can be adjusted in coding address "F2":

Heating program changeover

No heating program changeover

Duration of the heating program changeover 1 to 12 hours

Code

F2:0

F2:1 to

F2:12

The heating program changeover stays enabled for as long as the contact remains closed, but at least as long as the duration selected in coding address

"F2".

External blocking

The "External blocking" and "External blocking and fault message input" functions are connected via extension EA1.

There are 3 inputs available at extension

EA1 (DE1 to DE3).

External blocking

Input DE1

Input DE2

Input DE3

The function is selected via the following codes:

Code

3A:3

3b:3

3C:3

External blocking and fault message input

Input DE1

Input DE2

Input DE3

The effect on the internal circulation pump is selected with code 3E.

Code

3A:4

3b:4

3C:4

The effect on the relevant heating circuit pump is selected with code d6.

126

Function description

Control functions

(cont.)

External demand

The "External demand" function is connected via extension EA1. There are 3 inputs available at extension EA1 (DE1 to DE3).

External demand

Input DE1

Input DE2

Input DE3

The effect on the internal circulation pump is selected with code 3F.

The effect on the relevant heating circuit pump is selected with code d7.

Venting program

During the venting program, the circulation pump will be alternately switched

ON and OFF for 30 s respectively over a period of 20 min.

Screed drying function

The screed function enables screeds to be dried. For this, always observe the details specified by the screed manufacturer.

When the screed drying function is activated, the heating circuit pump of the mixer circuit is switched ON and the flow temperature will be held in accordance with the selected profile. After completion (30 days), the mixer circuit will again be regulated automatically via the set parameters.

Observe EN 1264. The report to be provided by the heating contractor must contain the following heat-up details:

The function is selected via the following codes:

Code

3A:2

3b:2

3C:2

The minimum set boiler water temperature in case of external demand is selected in coding address "9b".

The burner is switched OFF during the venting program.

Activate venting program: See "Venting the heating system".

■ Heat-up data with respective flow temperatures

■ Max. flow temperature achieved

■ Operating conditions and outside temperature during handover

The various temperature profiles are adjustable via coding address "F1".

The function continues after power failure or after the control unit has been switched OFF. "Heating and DHW" will be started after the screed drying function has been terminated or if code

"F1:0" is manually adjusted.

127

Function description

Control functions

(cont.)

Temperature profile 1: (EN 1264-4) code "F1:1"

Flow temperature °C

50

40

30

20

10

1 5 10 15 20 25

Temperature profile 2: (ZV parquet and flooring technology) code "F1:2"

Flow temperature °C

50

40

30

20

10

1 5 10 15 20 25

Temperature profile 3: Code "F1:3"

Flow temperature °C

50

40

30

20

10

1 5 10 15 20 25

Temperature profile 4: Code "F1:4"

Flow temperature °C

50

40

30

20

10

1 5 10 15 20 25

128

Control functions

(cont.)

Temperature profile 5: Code "F1:5"

Flow temperature °C

50

40

30

20

10

1 5 10 15 20 25

Temperature profile 6: Code "F1:6"

Flow temperature °C

60

50

40

30

20

10

1 5 10 15 20 25

Temperature profile 7: Code "F1:15"

Flow temperature °C

50

40

30

20

10

1 5 10 15 20 25

Function description

129

Function description

Control functions

(cont.)

Raising the reduced room temperature

During operation with reduced room temperature, the reduced set room temperature can be automatically raised subject to the outside temperature. The temperature is raised in accordance with the selected heating curve, but no higher than the set standard room temperature.

The outside temperature limits for the start and end of the temperature raising can be adjusted via coding addresses

"F8" and "F9".

Example using the settings in the delivered condition

35

60

50

Boiler water or Flow temperature in °C

40

30

90

80

70

A

B

20

15

10

10

5

5

0

0 -5 -10 -15 -20

Outside temperature in °C

A Heating curve for operation with standard room temperature

B Heating curve for operation with reduced room temperature

130

Function description

Control functions

(cont.)

Reducing the heat-up time

During the transition from operation with reduced room temperature to operation with standard room temperature, the boiler water or flow temperature will be raised in accordance with the selected heating curve. The boiler water or flow temperature can be automatically increased.

The value and duration of the additional increase of the set boiler water or flow temperature can be adjusted in coding addresses "FA" and "Fb".

Example using the settings in the delivered condition

60

C

50

B

40

D

20

Set boiler water or flow temperature in °C

10

0

A

6

00

Time in h

7

00

8

00

9

00

A Start of operation with standard room temperature

B Set boiler water or flow temperature in accordance with the selected heating curve

C Set boiler water or flow temperature in accordance with coding address

"FA":

50 °C + 20 % = 60 °C

D Duration of operation with raised set boiler water or flow temperature in accordance with coding address

"Fb":

60 min

131

Function description

Assigning the heating circuits to the remote control

The heating circuit assignment must be configured when commissioning the

Vitotrol 200A or Vitotrol 300A.

Heating circuit

The remote control affects the heating circuit without mixer A1

The remote control affects the heating circuit with mixer M2

The remote control affects the heating circuit with mixer M3

Configuration

Vitotrol 200A Vitotrol 300A

H 1

H 2

H 3

HK1

HK2

HK3

Note

The Vitotrol 300A can be assigned to one heating circuit, two heating circuits or all three heating circuits.

Electronic combustion controller

The electronic combustion controller utilises the physical correlation between the level of the ionisation current and the air factor λ. For all gas qualities, the maximum ionisation current results with air factor 1.

The ionisation signal is evaluated by the combustion controller, and the air factor is adjusted to between λ=1.24 and 1.44.

This range provides for an optimum combustion quality. Thereafter, the electronic gas valve regulates the required gas volume subject to the prevailing gas quality.

To check the combustion quality, the

CO

2

content or the O

2

content of the flue gas is measured. The actual values enable the prevailing air factor to be determined. The relationship between the

CO

2

or O

2

content and air factor λ is illustrated in the following table.

132

Function description

Electronic combustion controller

(cont.)

Air factor λ – CO

2

/O

2

content

Air factor λ O

2

content (%) CO

2

content (%) for nat-

1.24

4.4

ural gas H

9.2

1.27

1.30

1.34

1.37

1.40

1.44

4.9

5.3

5.7

6.1

6.5

6.9

9.0

8.7

8.5

8.3

8.1

7.8

CO

2

content (%) for

LPG P

10.9

10.6

10.3

10.0

9.8

9.6

9.3

To achieve an optimum combustion control, the system regularly carries out an automatic self-calibration; also after a power failure (shutdown). For this, the combustion is briefly regulated to max.

ionisation current (equals air factor λ=1).

The automatic calibration is carried out shortly after the burner start and lasts approx. 5 s. During calibration, higher than normal CO emissions may occur briefly.

133

Designs

Connection and wiring diagram – internal connections

A1 Main PCB

X...

Electrical interfaces

§ Boiler water temperature sensor aA aG

Ionisation electrode

Flue gas temperature sensor fJ gF

Temperature limiter

Ignition unit a-Ö Fan motor a-ÖA Fan motor control a:Ö

Modulation coil

134

Connection and wiring diagram – external connections

Designs

A1 Main PCB

A2 Power supply unit

A3 Optolink

A4 Burner control unit

A5 Programming unit

A6 Coding card

135

Designs

Connection and wiring diagram – external…

(cont.)

A7 Connection adaptor

A8 LON communication module or cascade communication module

A9 Internal extension (accessories)

S1 ON/OFF switch

S2 Reset button

X... Electrical interfaces

!

Outside temperature sensor

?

Flow temperature sensor, low loss header

% Cylinder temperature sensor

(plug on the cable harness) sÖ

Heating circuit pump or boiler circuit pump dD

Flow switch dG Gas solenoid valve fÖ Power supply [terminals] lH Power supply accessories and

Vitotrol 100 a-Ö Fan motor aYA Gas pressure limiter aVG KM BUS

136

Parts lists

Parts lists

Spare parts information

Quote the part and serial no. (see type plate) and the item number of the required part (as per this parts list).

Obtain standard parts from your local supplier.

001 Quick-action air vent valve

002 Clip Ø 8 (5 pce.)

003 Lip seal Ø 80

004 Ventilation air gasket Ø 125

005 Condensate hose

006 Pressure gauge

007 Heat exchanger

008 Thermal insulation block

009 Condensate hose

010 Boiler flue connection

011 Gas pipe

012 Entry grommets (set)

013 Air vent container

014 Gasket set

015 Flue gas gasket

016 Flow switch

017 Boiler flue connection plug

018 Siphon

019 Heating water flow connection pipe

020 Heating water return connection pipe

021 Wall mounting bracket

022 Cover panel with sealing mat

023 Heating water return connection pipe

050 Burner profiled gasket

051 Burner insulation ring

052 Cylinder burner gauze assembly

053 Burner gauze assembly gasket

055 Gasket burner flange

056 Radial fan

057 Gas train

058 Burner door

059 Ignition unit

060 Ionisation electrode gasket

061 Ignition electrode gasket

062 Gasket A 16x24x2 (set)

063 Gas nozzle

064 Venturi extension type 4

100 Control unit

101 Back cover

102 Fuse

103 Fuse holder

104 Programming unit for weathercompensated mode

105 Boiler coding card for single boiler system

106 Boiler coding card for multi-boiler system

109 Programming unit for constant temperature mode

110 LON communication module

(accessories)

111 PCB adaptor, LON module (accessories)

114 Internal connection extension H1

115 Locking bolts, left/right

116 Slider, left/right

120 Control unit support

121 Access guard

150 Outside temperature sensor

151 Thermal circuit breaker

152 Temperature sensor

153 Flue gas temperature sensor

200 Front panel with sealing mat

201 Fixing clip

202 Logo

Wearing parts

054 Ignition electrode

065 Ionisation electrode

Parts not shown

112 Cable harness "X8/X9/Ionisation"

113 Cable harness aux. earth/

100/35/54/earth

118 Mating plug

119 Cable ties (10 pce.)

203 Spray paint, Vitowhite

137

Parts lists

Parts lists

(cont.)

204 Touch-up paint stick, Vitowhite

300 Installation instructions

301 Service instructions

302 Operating instructions for constant temperature mode

303 Operating instructions for weathercompensated mode

A Type plate

138

Parts lists

Parts lists

(cont.)

201

200

022

202

054 061

058

011

065

060

063

053

055

051

052

064

050

056

062 057 063

139

Parts lists

Parts lists

(cont.)

007

015

004

003

010

017

012

014

002 152 014

151

020

153

A

021

012

001

016 019

008

002

018

018

009

018

014

005

140

013

012

014

023

104

109

Parts lists

(cont.)

116

115

100

006 002

110

111

106

105

103

101

Parts lists

102

114

115

116

150

121

120

141

Commissioning/service reports

Setting and test values

Static pressure

Supply pressure (flow pressure)

= for natural gas H

= for LPG

Tick gas type

Carbon dioxide content CO

2

■ at lower output

Date:

By:

mbar mbar mbar

■ at upper output

Oxygen content O

■ at lower output

■ at upper output

Carbon monoxide content CO

■ at lower output

■ at upper output

2

% by vol.

% by vol.

% by vol.

% by vol.

ppm ppm

Set value

max. 57.5 mbar

17.4-25 mbar

25-47 mbar

Service Commissioning

142

Specification

Specification

Rated voltage: 230 V~

Rated frequency: 50 Hz

Rated current:

Safety class: I

6.0 A

Protection:

IP X 4 D to

EN 60529

Permissible ambient temperature

■ during operation:

■ during storage and

0 to +40 °C transport: -20 to +65 °C

Electronic temperature limiter setting:

Temperature limiter setting:

Line fuse (mains):

82 °C (fixed)

100 °C (fixed) max. 16 A

Gas boiler, category II

2N3P

Rated output range

T

V

/T

R

50/30 °C

Rated thermal load range

Power consumption (max.)

Connection values

in relation to the max. load

With

Natural gas E

Natural gas LL

LPG

Product ID kW

kW

W m 3 /h m

3

/h kg/h

17 - 45

16.1 - 42.2

30

4.47

5.19

3.30

_

-0085BR0432

17 - 60

16.1 - 56.2

50

5.95

6.91

4.39

Note

The supply values are only for documentation purposes (e.g. in the gas contract application) or to estimate the supplementary volumetric settings. Because of factory settings, the gas pressure must not be altered from these settings. Reference: 15 °C,

1013 mbar.

143

Certificates

Declaration of conformity

Declaration of conformity for the Vitodens 200-W

We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm as sole responsible body that the product Vitodens 200-W complies with the following standards:

EN 483

EN 625

EN 677

EN 806

EN 55 014

EN 60 335-1

EN 60 335-2-102

EN 61 000-3-2

EN 61 000-3-3

EN 62 233

In accordance with the following Directives, this product is designated _-0085:

92/42/EEC

2004/108/EC

2006/95/EC

2009/142/EC

This product meets the requirements of the Efficiency Directive (92/42/EEC) for con-

densing boilers.

Allendorf, 20 January 2010 Viessmann Werke GmbH&Co KG pp. Manfred Sommer

Manufacturer's certificate according to the 1st BImSchV [Germany]

We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm that the product

Vitodens 200-W complies with the NO x

limits specified by the 1st BImSchV paragraph 7 (2) [Germany].

Allendorf, 20 January 2010 Viessmann Werke GmbH&Co KG

144

pp. Manfred Sommer

Keyword index

Keyword index

A

Acknowledging a fault display............95

B

Boiler water temperature sensor .....111

Boosting DHW heating.....................119

Brief scans.........................................87

Burner gauze assembly.....................21

Burner installation..............................22

Burner removal..................................19

C

Calling up fault messages............95, 96

Calling up the service level................86

Calling up the service menu...............86

Code 1

■ Calling up........................................41

Code 2

■ Calling up........................................55

Codes for commissioning...................27

Combustion chamber cleaning..........22

Combustion controller......................132

Commissioning....................................9

Commissioning/service report..........142

Commissioning report......................142

Condensate drain...............................24

Cylinder temperature sensor ...........111

D

Date setting........................................10

Diaphragm expansion vessel.............24

E

Electronic combustion controller......132

Extension

■ AM1..............................................121

■ EA1...............................................123

■ internal H1....................................119

■ internal H2....................................120

Extension kit for heating circuit with mixer ...............................................115

External blocking..............................126

External demand..............................127

F

Fault codes........................................97

Fault history.......................................95

Fault manager....................................38

Fault memory...............................95, 96

Faults.................................................95

Filling the system.................................9

Fill water...............................................9

Function descriptions.......................117

Function testing..................................92

Fuse.................................................114

G

Gas supply pressure..........................16

Gas train ...........................................15

Gas type.............................................12

Gas type conversion..........................13

H

Heat exchanger cleaning...................22

Heating curve.....................................34

Heating curve level............................36

Heating curve slope...........................36

Heating program changeover..........125

Heat-up time....................................131

Hiding a fault display..........................95

I

Ignition...............................................22

Ignition electrodes..............................22

Ionisation electrode............................22

L

Language selection............................10

LON....................................................37

■ Fault monitoring..............................38

■ Setting subscriber numbers............37

LON communication module..............37

LON subscriber check........................38

M

Manufacturer's certificate ................144

145

Keyword index

Keyword index

(cont.)

O

Opening the boiler................................8

Output setting.....................................17

Outside temperature sensor............109

P

Parts list...........................................137

R

Reduced room temperature...............37

Reduced room temperature raising. 130

Reducing the heat-up output............130

Reducing the heat-up time...............131

Relay test...........................................92

Remote control.................................132

Reports............................................142

Resetting codes...........................41, 55

Room temperature adjustment..........36

Rotational direction of mixer motor

■ Changing......................................115

■ Checking.......................................115

S

Scanning operating conditions...........86

Scanning operating data....................86

Screed drying...................................127

Screed drying function.....................127

Siphon..........................................11, 24

Small softening system........................9

Specification ....................................143

Standard room temperature...............36

Static pressure...................................15

Supply pressure.................................15

System pressure..................................9

System schemes..........................27, 41

T

Temperature limiter .........................112

Thermal switch.................................112

Tightness test, balanced flue system.18

Time setting.......................................10

V

Venting...............................................10

Venting program..............................127

Vitocom 300.......................................37

Vitotronic 200-H.........................37, 116

W

Wiring diagram.................................134

146

147

Applicability

Vitodens 200-W, type WB2C

17 to 45 kW

from serial no.

7438 087 0 00001

Viessmann Werke GmbH&Co KG

D-35107 Allendorf

Telephone: +49 6452 70-0

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

17 to 60 kW

from serial no.

7438 089 0 00001

Viessmann Limited

Hortonwood 30, Telford

Shropshire, TF1 7YP, GB

Telephone: +44 1952 675000

Fax: +44 1952 675040

E-mail: [email protected]

148

advertisement

Was this manual useful for you? Yes No
Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Related manuals