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Service instructions
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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..........................................
Heating circuit 1, heating circuit 2, heating circuit 3/Group "5"............................. 47
Heating circuit 1, heating circuit 2, heating circuit 3/Group "5"............................. 76
Connection and wiring diagram – internal connections ....................................... 134
Connection and wiring diagram – external connections....................................... 135
4
Index
Index
(cont.)
Manufacturer's certificate according to the 1st BImSchV [Germany]................... 144
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
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
3. Record the gas type in the service
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
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
4. Check the CO
2
content. Should the actual value deviate from the above ranges by more than 1 %, implement
5. Enter actual values into the service report.
6. Select the upper output (see
7. Check the CO
2
content. Should the actual value deviate from the above ranges by more than 1 %, implement
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
■ The LON subscriber list in the fault manager must be up to date (see
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
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
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-
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
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
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
Heating curve level adjustable from –13 to 40 (see
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
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
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-
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
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
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
Check the outside temperature sensor (see
Check the low loss header sensor (see
Check the low loss header sensor (see
Check the boiler water temperature sensor (see
Check the boiler water temperature sensor (see
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
Check the cylinder temperature sensor (see
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
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
Check connections, lead, coding address "A0" and remote control settings (see
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
Check room temperature sensor for heating circuit 2 and remote control settings (see
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
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
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Table of contents
- 41 Calling up coding level
- 42 General/Group
- 44 Boiler/Group
- 45 DHW/Group
- 46 Solar/Group
- 47 Heating circuit 1, heating circuit 2, heating circuit 3/Group
- 55 Calling up coding level
- 56 General/Group
- 65 Boiler/Group
- 66 DHW/Group
- 69 Solar/Group
- 76 Heating circuit 1, heating circuit 2, heating circuit 3/Group
- 86 Calling up the service menu
- 86 Diagnosis
- 92 Checking outputs (relay test)
- 95 Fault display
- 97 Fault codes
- 109 Repairs
- 117 Constant temperature control unit
- 118 Weather-compensated control unit
- 119 Internal extensions (accessories)
- 121 External extensions (accessories)
- 125 Control functions
- 132 Assigning the heating circuits to the remote control
- 132 Electronic combustion controller
- 134 Connection and wiring diagram – internal connections
- 135 Connection and wiring diagram – external connections
- 137 Parts lists
- 143 Specification
- 144 Declaration of conformity
- 144 Manufacturer's certificate according to the 1st BImSchV [Germany]
- 145 Keyword index