Download Viessmann WB2B Operating instructions

Service instructions
VIESMANN
for contractors
Vitodens 200-W
Type WB2B, 4.8 to 35.0 kW
Wall mounted gas fired condensing boiler
Natural gas and LPG version
For applicability, see the last page
VITODENS 200-W
5692 672 GB
5/2008
Please keep safe.
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.
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.
&
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).
If you smell flue gas
Observe the following when working
on this system
& all legal instructions regarding the
prevention of accidents,
& all legal instructions regarding
environmental protection,
2
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.
5692 672 GB
Regulations
Safety instructions
Safety instructions (cont.)
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.
!
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.
5692 672 GB
!
Repair work
3
Index
Index
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance ...................................
Further details regarding the individual steps ..............................................
5
7
Coding
Code 1........................................................................................................ 36
Code 2........................................................................................................ 39
Resetting codes to their delivered condition ................................................ 58
Service scans
Service level overview ...............................................................................
Temperatures, boiler coding card and brief scans .......................................
Checking outputs (relay test) ......................................................................
Scanning operating conditions and sensors ................................................
59
60
63
65
Troubleshooting
Fault display ............................................................................................... 67
Fault codes................................................................................................. 69
Repairs ...................................................................................................... 79
Function description
Constant temperature control unit ...............................................................
Weather-compensated control unit..............................................................
Extensions for external connections (accessories) ......................................
Control functions ........................................................................................
Remote control DIP switches ......................................................................
Electronic combustion control unit...............................................................
90
91
94
98
104
105
Designs
Connection and wiring diagram – internal connections ................................ 107
Connection and wiring diagram – external connections ............................... 109
Parts lists .................................................................................................. 111
Commissioning/service reports ............................................................... 117
Certificates
Declaration of conformity ............................................................................ 119
Manufacturer's certificate according to the 1st BImSchV [Germany]............. 120
Keyword index .......................................................................................... 121
4
5692 672 GB
Specification ............................................................................................. 118
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
For further information regarding the individual steps, see the page indicated
!
•
•
•
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•
•
Commissioning steps
!
Inspection steps
01. Filling the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
02. Venting the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
03. Venting the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
04. Filling the siphon with water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
05. Checking the power supply connection
•
06. Setting the time and date (if required) – only for
weather-compensated control units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
07. Selecting the language (if required) – only for
weather-compensated control units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
•
08. Checking the gas type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
09. Gas type conversion (only for operation with LPG) . 12
•
•
•
•
10. Function sequence and possible faults . . . . . . . . . . . . . . . . . . . . . . . 12
•
•
...................
14
...........................................
16
11. Checking the static and supply pressure
12. Setting the maximum output
•
5692 672 GB
Page
!
•
•
•
•
•
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Maintenance steps
13. Checking all connections on the heating water
side and DHW side for leaks
14. Checking the balanced flue system for tightness
(annular gap check) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
•
•
•
•
15. Burner removal
•
•
17. Checking and adjusting the ignition and ionisation
electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
•
•
18. Cleaning the heating surfaces and installing the
burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
•
•
19. Checking the condensate drain and cleaning the
siphon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
•
•
20. Checking the neutralising system (if installed)
.....................................................................
17
16. Checking the burner gasket and the burner gauze
assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5
Commissioning, inspection, maintenance
Steps - commissioning, inspection and . . . (cont.)
Commissioning steps
Inspection steps
Maintenance steps
!
!
21. Flow limiter (only for gas combi boilers) . . . . . . . . . . . . . . . . . . . . . 22
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•
•
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•
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•
•
•
•
23. Checking the function of all safety valves
•
•
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•
•
26. Flue gas emissions test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
!
Page
22. Checking the diaphragm expansion vessel and
system pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
24. Checking the tightness of electrical connections
25. Checking all gas equipment for tightness at
operating pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
27. Checking the external LPG safety valve (if
installed)
•
•
28. Matching the control unit to the heating system
•
30. Connecting the control unit to the LON system
(only for weather-compensated control units) . . . . . . . . . . 32
•
31. Instructing the system user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
......
25
29. Adjusting the heating curves (only for weathercompensated control units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
32. Scanning and resetting the "Service" display . . . . . . . . . . . 34
5692 672 GB
•
6
Commissioning, inspection, maintenance
Further details regarding the individual steps
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 hardness exceeding 3.0 mol/m 3 , e.g. using a
small softening system for heating water (see Viessmann Vitoset price
list).
& An antifreeze additive suitable for heating systems can be mixed with
the fill water. The antifreeze manufacturer must verify its suitability.
1. Check the inlet pressure of the diaphragm expansion vessel.
2. Close the gas shut-off valve.
5692 672 GB
3. Fill the heating system via the boiler fill & drain valve A in the heating return (at the connection set or
on site). (Minimum system pressure > 1.0 bar).
4. If the control unit had already been
switched ON before filling began:
Switch ON the control unit and activate the fill program via coding
address "2F:2".
5. Close boiler fill & drain valve A.
6. Close the shut-off valves on the
heating water side.
Note
If the control unit has not been
switched ON prior to filling the system, then the servomotor of the
diverter valve will still be in its central position, and the system will be
completely filled.
7
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Venting the boiler
1. Close the shut-off valves on the
heating water side.
2. Connect the drain hose between
top valve B and a drain outlet.
3. Open valves A and B and vent
using mains pressure until no more
air noise is audible.
If required, move the 3-way valve
into its central position to achieve
complete venting. For this, set
code "2F:2".
4. Close valves A and B and open
the heating water shut-off valves.
1. Close the gas shut-off valve and
switch ON the control unit.
8
5692 672 GB
Venting the heating system
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
2. Activate the venting program via
coding address "2F:1" in code 1.
3. Check the system pressure.
Note
To call up code 1 and for setting the
coding address, see page 36.
For function and sequence of the
venting program, see page 99.
Whilst the venting program runs,
the display shows "EL" (constant
temperature control unit) or
"Entlüftung" (Venting) (weathercompensated control unit).
Filling the siphon with water
1. Remove retaining clip A and
siphon B.
2. Fill siphon B with water.
5692 672 GB
3. Fit siphon B and secure with
retaining clip A.
9
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Setting the time and date (if required) – only for weathercompensated control units
Note
& During commissioning, or after a
prolonged time out of use, it may be
necessary to reset the time and
date, if the time flashes in the display.
& When the unit is first taken into
operation the display is in German
(default language setting):
Date (see step 2)
Press the following keys:
Time (see step 1)
1. a/b for the current time.
2. d
to confirm; "Datum" is displayed.
3. a/b for the current date.
4. d
to confirm.
Selecting the language (if required) – only for weather-compensated control units
Note
When the unit is first taken into operation the display is in German (default
language setting):
Outside temperature (see step 3.)
Select heating circuit (see step 1.)
Press the following keys:
2. d to confirm; wait approx. 4 s.
10
5692 672 GB
1. c "Heizkreis wählen" (select
heating circuit) is displayed.
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
3. c press this button again,
"Außentemperatur" (outside
temperature) is displayed.
4. b for the required language.
5. d to confirm.
Checking the gas type
The boiler is equipped with an electronic combustion control unit that adjusts
the burner for optimum combustion in accordance with the prevailing gas quality.
& The boiler can be operated with natural gas in the Wobbe index range 10.0 to
16.1 kWh/m 3 (36.0 to 58.0 MJ/m 3 ) without conversion.
& Convert the burner for operation with LPG (see "Gas type conversion" on
page 12).
1. Determine the gas type and Wobbe
index by asking your local gas supply utility or LPG supplier.
2. Convert the burner for operation
with LPG (see page 12).
3. Record the gas type in the service
report on page 117.
Wobbe index ranges
Gas type
MJ/m 3
12.0 to 16.1
43.2 to 58.0
10.0 to 13.1
36.0 to 47.2
20.3 to 21.3
72.9 to 76.8
5692 672 GB
Delivered condition
Natural gas E
or
Natural gas LL
After conversion
LPG P
Wobbe index range
kWh/m 3
11
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Gas type conversion (only for operation with LPG)
1. Set adjusting screw A at the gas
train to "2".
2. Switch ON system ON/OFF switch
"8".
3. Adjust the gas type (see page 82):
& Call up code 2
& In coding address "11", select
value "9"
& In coding address "82", select
value "1" (operation with LPG)
& Set code "11" ≠ "9".
& Terminate code 2.
4. Open the gas shut-off valve.
Function sequence and possible faults
Display screen
Control unit issues heat demand
No
Measures
Increase set
value and ensure
heat is drawn off
Yes
No
after approx. 51 s
fault F9
Check the fan, fan
connecting
cables, power at
the fan and fan
control
5692 672 GB
Fan starts
12
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Yes
Ignition
No
Fault F4
Check the ignition
module (control
voltage 230 V
across plugs
"X2.1" and
"X2.2")
No
Fault F4
Check the gas
train (control voltage 230 V);
check the gas
supply pressure
No
Fault F4
Check the ionisation electrode adjustment and the
gas pipe for airlocks
Stops below the
set boiler water
temperature and
restarts immediately
Check the flue
gas system for
soundness (flue
gas recirculation),
check the gas
flow pressure
Fault Eb
Check the connecting cable and
the ionisation
electrode,
check the flue gas
system (flue gas
recirculation)
Yes
Gas train opens
Yes
Ionisation current builds
Symbol A
Yes
Burner in operation
No
Yes
5692 672 GB
Automatic calibration of the
combustion control unit
No
13
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
For further details regarding faults,
see page 69.
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. Thoroughly vent
the tank and gas supply lines after flushing.
1. Close the gas shut-off valve.
2. Undo the screw inside test connector "IN" A on the gas train, but do
not remove, then connect the pressure gauge.
3. Open the gas shut-off valve.
4. Measure the static pressure and
record it in the service report.
Set value: max. 57.5 mbar.
5. Start the boiler.
5692 672 GB
Note
During commissioning, the boiler
can enter a fault state because of
airlocks in the gas pipe. After
approx. 5 s, press "E RESET" to
reset the burner.
14
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
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.
5692 672 GB
Open the gas shut-off valve, start
the boiler and check for tightness at
test nipple A.
Supply (flow)
pressure for natural gas
below 17.4 mbar
Supply (flow)
pressure for
LPG
below 42.5 mbar
17.4 to 25 mbar
in excess of
25 mbar
42.5 to 57.5 mbar
in excess of
57.5 mbar
Measures
Do not start the boiler. Notify your
mains gas or LPG supplier.
Start the boiler.
Install a separate gas pressure governor upstream of the system and regulate the inlet pressure to 20 mbar for
natural gas or 50 mbar for LPG. Notify
your mains gas or LPG supplier.
15
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Setting the maximum output
Note
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.
1. Start the boiler.
4. Confirm the set value with d.
2. Press K and F simultaneously
until a value flashes (e.g. "85") and
"A" appears. In the delivered condition, this value represents 100 %
of rated output.
On weather-compensated control
units, the display additionally
shows "Max. output".
5. Record the settings for maximum
output on the additional type plate
included with the "technical documentation". Affix the type plate next
to the original type plate on top of
the boiler.
3. With a/b select the required
value in % of rated output as maximum output.
Note
The output can also be limited for
DHW heating. For this, change coding
address "6F" in code 2.
Checking the balanced flue system for tightness (annular
gap check)
5692 672 GB
A Combustion air port
16
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
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.
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 gastight 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.
5692 672 GB
Burner removal
17
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.
5. Undo four screws G and remove
the burner.
!
Please note
To prevent damage,
never rest the burner on the
gauze assembly.
5692 672 GB
3. Pull cables from fan motor A, gas
train B, ionisation electrode C,
ignition unit D and earth tab E.
4. Release gas supply pipe F fitting.
18
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Checking the burner gasket and the burner gauze assembly
Check burner gasket A and burner gauze assembly E for damage and
replace, if required.
Generally replace the burner gasket every 2 years.
1. Remove electrodes B.
2. Undo three retaining clips C at
thermal insulation ring D and
remove thermal insulation ring D.
4. Insert and secure a new burner
gauze assembly E with a new
gasket F.
Torque: 3.5 Nm.
5692 672 GB
5. Refit thermal insulation ring D.
3. Undo four Torx screws and remove
burner gauze assembly E with its
gasket F.
6. Refit electrodes B.
Torque: 2.5 Nm.
19
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Checking and adjusting the ignition and ionisation electrodes
A Ignition electrodes
B Ionisation electrode
1. Check the electrodes for wear and
contamination.
3. Check the electrode gaps. If the
gaps are not as specified or the
electrodes are damaged, replace
and align the electrodes together
with new gaskets. Tighten the electrode fixing screws with 2.5 Nm.
2. Clean the electrodes with a small
brush (not with a wire brush) or
emery paper.
Cleaning the heating surfaces 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.
5692 672 GB
!
20
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
1. Use a vacuum cleaner to remove
residues from the heat
exchanger A inside the combustion chamber.
2. If required, spray slightly acidic,
chloride-free cleaning agents
based on phosphoric acid (e.g.
Antox 75 E) onto the heat
exchanger A and let the solution
soak in for approx. 20 min.
3. Thoroughly flush the heat
exchanger A with water.
4. Install the burner and torque the
screws diagonally with 4 Nm.
5. Fit the gas supply pipe with a new
gasket.
6. Check the gas connections for
tightness.
Danger
Escaping gas leads to a risk
of explosion.
Check all fittings for gastightness.
5692 672 GB
7. Connect the electrical cables/leads
to each corresponding component.
21
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Checking the condensate drain and cleaning the siphon
1. Check that the condensate can
drain freely at the siphon.
2. Remove retaining clip A and
siphon B.
3. Clean siphon B.
4. Fill siphon B with water, fit it and
secure with retaining clip A.
Flow limiter (only for gas combi boilers)
1. Switch OFF the control unit, shut off
the cold water line and drain the
DHW side of the boiler.
2. Undo Allen screws A.
Note
Residual water may escape during
dismantling.
3. Remove flow switch B and remove
flow limiter C downwards.
5692 672 GB
4. Check flow limiter C; replace in
case of excessive scaling or
damage.
Secure flow switch B.
22
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
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 inlet pressure of the diaphragm expansion vessel is lower
than the static system pressure,
top up with nitrogen until the inlet
pressure is raised by 0.1 to 0.2 bar.
3. Top up your heating system with
water and vent until the filling pressure of a cooled system is 0.1 to
0.2 bar higher than the inlet pressure of the diaphragm expansion
vessel.
Permiss. operating pressure: 3 bar
Checking all gas equipment for tightness at operating pressure
Danger
Escaping gas leads to a risk of
explosion.
Check gas equipment for tightness.
Flue gas emissions test
5692 672 GB
The electronic combustion control unit 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 function
description of the electronic combustion control unit, see page 105.
CO 2 or O 2 content
The CO 2 content must be within the following ranges (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.
23
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Note
During commissioning, the combustion control unit carries out an automatic
calibration. Only test the emissions approx. 30 s after the burner has started.
4. Check the CO 2 content. Should the
actual value deviate from the
above ranges by more than 1 %,
implement steps from page 23.
5. Enter actual values into the service
report.
6. Adjust the upper output.
1. Connect a flue gas analyser at test
port A (on the boiler flue outlet).
2. Open the gas shut-off valve, start
the boiler and create a heat
demand.
Constant temperature control
unit:
a press:
"2" is shown.
Weather-compensated control
unit:
a press:
"Full load" is shown.
3. Adjust the lower output.
Constant temperature control
unit:
K + d press simultaneously:
"1" is shown.
7. Check the CO 2 content. Should the
actual value deviate from the
above ranges by more than 1 %,
implement steps from page 23.
8. After testing, press d.
9. Enter actual values into the service
report.
5692 672 GB
Weather-compensated control
unit:
K + d press simultaneously:
"Relay test" and then
"Base load" is shown.
24
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Matching the control unit to the heating system
Note
Subject to the equipment level, the control unit must be matched to the system.
Various system components are recognised automatically by the control unit
and the relevant codes are adjusted automatically.
In the following system designs, DHW heating is illustrated with a separate
DHW cylinder. The designs also apply to systems where DHW is heated by an
integral instantaneous water heater.
& For the selection of an appropriate design, see the following diagrams.
& For coding steps, see page 36.
System version 1
One heating circuit without mixer A1 (with/without DHW heating)
5692 672 GB
1 Vitodens 200-W
2 Outside temperature sensor (only
for weather-compensated control
units)
Required coding
Operation with LPG
3 Vitotrol 100 (only for constant
temperature control units)
4 DHW cylinder
5 Cylinder temperature sensor
6 Heating circuit without mixer A1
Address
82:1
25
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
System version 2
One heating circuit without mixer A1 and one heating circuit with mixer M2
(with/without DHW heating)
Note
The volume flow of the heating circuit without mixer must be at least 30%
greater than the volume flow of the heating circuit with mixer.
Vitodens 200-W
Outside temperature sensor
DHW cylinder
Cylinder temperature sensor
Heating circuit without mixer A1
Heating circuit with mixer M2
7 Temperature limiter for limiting the
max. temp. of underfloor heating
systems
8 Flow temperature sensor M2
9 Heating circuit pump M2
qP Extension kit for one heating circuit with mixer M2
Required coding
Operation with LPG
System with only one heating circuit with mixer
& with DHW heating
& without DHW heating
26
Address
82:1
00:4
00:3
5692 672 GB
1
2
3
4
5
6
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
System version 3
One heating circuit without mixer A1 and one heating circuit with mixer M2
with system separation (with/without DHW heating)
1
2
3
4
5
6
7
Vitodens 200-W
Outside temperature sensor
DHW cylinder
Cylinder temperature sensor
Heating circuit without mixer A1
Heating circuit with mixer M2
Temperature limiter for limiting the
max. temp. of underfloor heating
systems
Address
82:1
5692 672 GB
Required coding
Operation with LPG
8 Flow temperature sensor M2
9 Heating circuit pump M2
qP Extension kit for one heating circuit with mixer M2
qQ Heat exchanger for system
separation
27
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
System version 4
One heating circuit with mixer M1 (with Vitotronic 200-H), one heating circuit with mixer M2 (with extension kit) and low loss header (with/without
DHW heating)
Vitodens 200-W
Outside temperature sensor
DHW cylinder
Cylinder temperature sensor
Heating circuit with mixer M1
Flow temperature sensor M1
Heating circuit pump M1
Vitotronic 200-H
Heating circuit with mixer M2
qP Temperature limiter for limiting the
max. temp. of underfloor heating
systems
qQ Flow temperature sensor M2
qW Heating circuit pump M2
qE Extension kit for one heating circuit with mixer M2
qR Low loss header
qT Flow temperature sensor, low loss
header
Required coding
Operation with LPG
One heating circuit with mixer with extension kit for mixer
and one heating circuit with mixer with Vitotronic 200-H
& with DHW heating
& without DHW heating
28
Address
82:1
00:4
00:3
5692 672 GB
1
2
3
4
5
6
7
8
9
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
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.
A Heating curve slope for underfloor
heating systems
B Heating curve slope for low temperature heating systems
(according to the Energy Savings
Order [Germany])
5692 672 GB
Settings in the delivered condition:
& Slope = 1.4
& Level = 0
29
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Changing the slope and level
1. Slope:
Change with coding address "d3"
in code 1.
Setting range 2 to 35 (equals slope
0.2 to 3.5).
2. Level:
Change with coding address "d4"
in code 1.
Setting range -13 to +40 K.
5692 672 GB
A Changing the slope
B Changing the level (vertical parallel offset of the heating curve)
30
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Adjusting the set room temperature
Standard room temperature
5. Adjust the set day temperature with
rotary selector "ts".
The value will be automatically
accepted after approx. 2 s.
Accordingly, the heating curve is
adjusted along set room temperature axis C, which results in modified start/stop characteristics of the
heating circuit pumps if heating circuit pump logic function is active.
Reduced room temperature
Example 1: Adjustment of 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"
Press the following keys:
Example 2: Adjustment of reduced
room temperature from 5 °C to 14 °C
1. a "1r" flashes.
2. d to select heating circuit A1
(heating circuit without mixer)
or
3. a "2r" flashes.
4. d to select heating circuit with
mixer M2.
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"
Press the following keys:
"1r" flashes.
5692 672 GB
1. a
31
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
to select heating circuit A1
(heating circuit without
mixer)
or
5. E
3. a
"2r" flashes.
7. d
4. d
to select heating circuit
with mixer M2.
2. d
Call up the set night temperature.
6. a/b Change the value.
Confirm the value.
Connecting the control unit to the LON system (only for
weather-compensated control units)
The LON communication module
(accessories) must be plugged in.
Note
The data transfer via LON can take
several minutes.
Installation instructions
LON communication module
Single boiler system with Vitotronic 200-H and Vitocom 300
Boiler control unit
Vitotronic 200-H
Vitotronic 200-H
Vitocom
Subscriber no. 1
Code "77:1"
Control unit is fault
manager
Code "79:1"
Control unit transmits the time
Code "7b:1"
Subscriber no. 10
Code "77:10"
Control unit is not
fault manager
Code "79:0"
Control unit receives the time
Set code "81:3"
Subscriber no. 11
Set code "77:11"
Control unit is not
fault manager
Code "79:0"
Control unit receives the time
Set code "81:3"
Subscriber
no. 99
Device is fault
manager
32
Device receives the
time
5692 672 GB
Note
Set up the LON subscriber numbers
In the same LON system, the same
and further functions via code 2 (see
number cannot be allocated twice.
the following table).
Only one Vitotronic may be programmed as fault manager.
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Boiler control unit
Control unit transmits outside temperature
Set code "97:2"
LON subscriber fault
monitoring
Code "9C:20"
Vitotronic 200-H
Control unit receives outside temperature
Set code "97:1"
LON subscriber
fault monitoring
Code "9C:20"
Vitotronic 200-H
Vitocom
—
Control unit receives outside temperature
Set code "97:1"
—
LON subscriber
fault monitoring
Code "9C:20"
Updating the LON subscriber list
Only possible if all subscribers are
connected and the control unit is programmed to be fault manager (code
"79:1").
2. e
The subscriber list is
updated after approx.
2 min.
The subscriber check is
completed.
Press the following keys:
1. L + d simultaneously for
approx. 2 s.
Subscriber check
initiated (see page 33).
Carrying out a subscriber check
Communication with the system devices connected to the fault manager is
tested with a subscriber check.
A Consecutive number in the subscriber list
B Subscriber number
5692 672 GB
Precondition:
& The control unit must be programmed as fault manager (code
"79:1")
& The LON subscriber number must
be programmed in all control units
(see page 32)
& The LON subscriber list in the fault
manager must be up to date (see
page 32)
33
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
Press the following keys:
1. L + d simultaneously for
approx. 2 s.
The subscriber check
has been initiated.
2. a/b
for the required subscriber.
3. d
Check is enabled
"Check" flashes until its
completion.
The display and all key
illuminations for the
selected subscriber flash
for approx. 60 s.
4. "Check OK" is displayed during
communication between both
devices.
or
"Check not OK" is displayed if
there is no communication
between both devices. Check the
LON connection.
5. Repeat points 2 and 3 to check
further subscribers.
6. L + d simultaneously for
approx. 1 s.
The subscriber check is
completed.
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.
Scanning and resetting the "Service" display
The red fault indicator flashes when the limits set via coding address "21" and
"23" have been reached. The programming unit display flashes:
& On a constant temperature control unit:
& The defaulted hours run or the defaulted interval with clock symbol "u" (subject to setting)
& On a weather-compensated control unit:
& "Service"
Press the following keys:
1. c
34
The service scan is active.
2. a/b Scan service messages.
5692 672 GB
Note
Set code "24:1" and then code "24:0" if a service is carried out before the service display is shown; the set service parameters for hours run and interval are
then reset to 0.
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
3. d
The service display will be
cleared (for a weathercompensated control unit:
"Acknowledge: Yes",
reconfirm with d).
The red fault display continues to flash.
Note
An acknowledged service message
can be redisplayed by pressing d
(approx. 3 s).
After a service has been carried out
1. Reset code "24:1" to "24:0".
The red fault indicator extinguishes.
5692 672 GB
Note
If coding address "24" is not reset,
the "Service" message reappears:
& On a constant temperature control unit:
& After 24 hours
& On a weather-compensated control unit:
& At 07:00 h on Monday
2. Reset the burner hours run, burner
starts and consumption, if required.
Press the following keys:
c
Scanning is active.
a/b for the selected value.
e
The selected value will be
set to "0".
a/b for further scans.
d
Scanning is completed.
35
Coding
Code 1
Calling up code 1
Note
& On weather-compensated control
units, codes are displayed as plain
text.
& Codes that are irrelevant due to the
system equipment level or the setting of other codes will not be displayed.
& Heating systems with one heating
circuit without mixer and one heating circuit with mixer:
& Initially, the possible coding
addresses "A0" to "d4" for the heating circuit without mixer A1 are
scanned; then the coding addresses
for the heating circuit with mixer M2
are scanned.
Press the following keys:
2. a/b
for the required coding
address; the address
flashes.
3. d
to confirm.
4. a/b
for the selected value.
5. d
to confirm; the display
briefly shows "accepted"
(weather-compensated
control unit); the address
flashes again.
6. a/b
for the selection of further
addresses.
7. K + L press simultaneously for
approx. 1 s; code 1 is terminated.
5692 672 GB
1. K + L simultaneously for
approx. 2 s.
36
Coding
Code 1 (cont.)
Overview
Coding
Coding in the delivered condition
System design
00 :1
System version 1:
1 heating circuit without
mixer A1, without DHW
heating
Possible change
00 :2
00 :3
00 :4
00 :5
00 :6
06:20
to
06:127
Maximum limit of the boiler water temperature
within the ranges defaulted by the boiler
2F:1
2F:2
Venting program enabled
Fill program enabled
5692 672 GB
Max. boiler water temp.
06:...
Maximum limit of the
boiler water temperature, defaulted by the
boiler coding card
Venting/filling
2F:0
Venting program/fill program disabled
System version 1:
1 heating circuit without
mixer A1, with DHW heating
System version 4:
1 heating circuit with
mixer M2, without DHW
heating
System version 4:
1 heating circuit with
mixer M2, with DHW
heating
System version 2, 3:
1 heating circuit without
mixer A1 and 1 heating
circuit with mixer M2,
without DHW heating
System version 2, 3:
1 heating circuit without
mixer A1; 1 heating circuit with mixer M2, with
DHW heating
37
Coding
Code 1 (cont.)
Coding in the delivered condition
Possible change
Subscriber no.
LON subscriber number,
77:1
LON subscriber number 77:2
adjustable from 1 to 99:
to
1 - 4 = Boiler
77:99
5 = Cascade
10 - ... = Vitotronic 200-H
99 = Vitocom
Note
Allocate each number
only once.
A5:0
Without heating circuit
pump logic function
C5:1
to
C5:127
Minimum limit adjustable
from 1 to 127 °C (limited
by the boiler coding card)
C6:10
to
C6:127
Maximum limit adjustable
from 10 to 127 °C
d3:2
to
d3:35
Heating curve slope adjustable from 0.2 to 3.5
(see page 29)
d4:–13
to
d4:40
Heating curve level adjustable from –13 to 40
(see page 29)
5692 672 GB
Summer econ. A1/M2
A5:5
With heating circuit
pump logic function
(only for weather-compensated control units)
Min. flow temp. A1/M2
C5:20
Electronic minimum
flow temperature limit
20 °C (only for weathercompensated control
units)
Max. flow temp. A1/M2
C6:75
Electronic maximum
flow temperature limit
75 °C (only for weathercompensated control
units)
Slope A1/M2
d3:14
Heating curve slope =
1.4 (only for weathercompensated control
units)
Level A1/M2
d4:0
Heating curve level = 0
(only for weather-compensated control units)
38
Coding
Code 2
Calling up code 2
Note
& On weather-compensated control
units, codes are displayed as plain
text.
& Codes that are irrelevant due to the
system equipment level or the setting of other codes will not be displayed.
Press the following keys:
1. L + G simultaneously for
approx. 2 s.
2. d
to confirm.
3. a/b
for the required coding
address; the address
flashes.
4. d
to confirm; the value
flashes.
5. a/b
for the selected value.
6. d
to confirm; the display
briefly shows
"accepted" (for
weather-compensated
control units); the
address flashes again.
7. a/b
for the selection of
further addresses.
5692 672 GB
8. L + G press simultaneously for
approx. 1 s; code 2 is
terminated.
The coding addresses are grouped according to the following function areas.
The respective function area is shown on the display.
39
Coding
Code 2 (cont.)
The areas are scanned in the following sequence with a/b:
Function area
System design
Boiler/burner
DHW
General
Heating circuit A1 (heating circuit without
mixer)
Heating circuit with mixer M2
Coding addresses
00
06 to 54
56 to 73
76 to 9F
A0 to Fb
A0 to Fb
5692 672 GB
Note
Heating systems with one heating circuit without mixer and one heating circuit
with mixer:
Initially, the possible coding addresses "A0" to "Fb" for the heating circuit without mixer A1 are scanned; then the coding addresses for the heating circuit with
mixer M2 are scanned.
40
Coding
Code 2 (cont.)
Coding
Coding
Coding in the delivered condition
System design
00 :1
System version 1:
1 heating circuit without
mixer A1, without DHW
heating
Possible change
00 :2
00 :3
00 :4
00 :5
5692 672 GB
00 :6
Boiler/burner
06:...
Maximum limit of the
boiler water temperature, defaulted by the
boiler coding card
11:≠9
No access to the coding
addresses for the parameters of the combustion controller
21:0
No maintenance interval (operating hours)
selected
06:20
to
06:127
11:9
21:1
to
21:9999
System version 1:
1 heating circuit without
mixer A1, with DHW heating
System version 4:
1 heating circuit with
mixer M2, without DHW
heating
System version 4:
1 heating circuit with
mixer M2, with DHW
heating
System version 2, 3:
1 heating circuit without
mixer A1; 1 heating circuit with mixer M2, without DHW heating
System version 2, 3:
1 heating circuit without
mixer A1; 1 heating circuit with mixer M2, with
DHW heating
Maximum limit of the boiler water temperature
within the ranges defaulted by the boiler
Access open to the coding addresses for the
parameters of the combustion controller
The number of hours run
before the burner should
be serviced is adjustable
from 1 to 9999 h
41
Coding
Code 2 (cont.)
Coding in the delivered condition
23:0
No time interval for
burner service selected
24:0
The service display is
reset
25:0
With outside temperature sensor for constant
temperature control
units: No recognition of
outside temperature
sensor or fault monitoring
No burner interval ignition
28:0
Possible change
Interval adjustable from 1
23:1
to 24 months
to
23:24
24:1
"Service" display (the
value is automatically set
and must be manually
reset after a service has
been carried out)
25:1
Outside temperature sensor and fault monitoring
recognised
28:1
to
28:24
2E:0
Without external extension
2E:1
2F:0
Venting program/fill program disabled
Internal fixed speed circulation pump (automatic adjustment, do
not modify)
Influence of the signal
"External blocking" on
circulation pumps: All
pumps in control function
2F:1
2F:2
30:0
32:0
32:1
to
32:15
Time interval adjustable
from 1 to 24 h. The burner is force-started once
every 30 s (only when operating with LPG).
With external extension
(automatic setting on
connection)
Venting program enabled
Fill program enabled
Influence of the signal
"External blocking" on
circulation pumps: see
the following table
5692 672 GB
Note
Generally, the burner will be blocked when signal "External blocking" is
enabled.
42
Coding
Code 2 (cont.)
Internal circuValue
address lation pump
32: ...
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Control funct.
Control funct.
Control funct.
Control funct.
Control funct.
Control funct.
Control funct.
Control funct.
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Heating circuit
pump
Heating circuit
without mixer
Control funct.
Control funct.
Control funct.
Control funct.
OFF
OFF
OFF
OFF
Control funct.
Control funct.
Control funct.
Control funct.
OFF
OFF
OFF
OFF
Coding in the delivered condition
Boiler/burner
34:0
Influence of the signal
"External demand" on
the circulation pumps:
All pumps in control
function
Internal
Value
address circulation
pump
34: ...
0
5692 672 GB
1
2
Control
funct.
Control
funct.
Control
funct.
Heating circuit pump
Heating circuit without
mixer
Control
funct.
Control
funct.
Control
funct.
Heating circuit
pump
Heating circuit
with mixer
Control funct.
Control funct.
OFF
OFF
Control funct.
Control funct.
OFF
OFF
Control funct.
Control funct.
OFF
OFF
Control funct.
Control funct.
OFF
OFF
Circulation
pump for cylinder heating
Control funct.
OFF
Control funct.
OFF
Control funct.
OFF
Control funct.
OFF
Control funct.
OFF
Control funct.
OFF
Control funct.
OFF
Control funct.
OFF
Possible change
34:1
to
34:23
Influence of the signal
"External demand" on the
circulation pumps: see
the following table
Circulation pump for
cylinder heating
Heating circuit pump
Heating circuit with
mixer
Control funct.
Control funct.
Control funct.
OFF
OFF
Control funct.
43
Coding
Code 2 (cont.)
Internal
Value
address circulation
pump
34: ...
3
8
Control
funct.
Control
funct.
Control
funct.
Control
funct.
Control
funct.
OFF
9
OFF
10
OFF
11
OFF
12
13
14
15
16
OFF
OFF
OFF
OFF
ON
17
ON
18
ON
19
ON
20
21
22
23
ON
ON
ON
ON
4
5
6
Heating circuit pump
Heating circuit with
mixer
OFF
OFF
Control funct.
Control funct.
OFF
Control funct.
OFF
OFF
OFF
Control funct.
OFF
OFF
OFF
Control
funct.
Control
funct.
Control
funct.
Control
funct.
OFF
OFF
OFF
OFF
Control
funct.
Control
funct.
Control
funct.
Control
funct.
OFF
OFF
OFF
OFF
Control funct.
Control funct.
Control funct.
OFF
OFF
Control funct.
OFF
OFF
Control funct.
Control funct.
OFF
OFF
Control funct.
Control funct.
OFF
Control funct.
OFF
Control funct.
Control funct.
OFF
OFF
Control funct.
OFF
OFF
Control funct.
Control funct.
OFF
OFF
Control funct.
OFF
Control funct.
OFF
5692 672 GB
7
Circulation pump for
cylinder heating
Heating circuit pump
Heating circuit without
mixer
Control
funct.
OFF
44
Coding
Code 2 (cont.)
5692 672 GB
Coding in the delivered condition
Possible change
Boiler/burner
38:≠0
Fault burner control unit
38:0
Status burner control
unit: Operational (no
fault)
51:1
When there is a heat de51:0
Internal circulation
mand, the internal circupump is always started
lation pump will only be
when there is a heat destarted when the burner
mand
is operational. System
with heating water buffer
cylinder.
52:1
With flow temperature
52:0
Without flow temperasensor for low loss headture sensor for low loss
er (automatic adjustment
header
on connection)
Function connection sK:
53:1
Function connection sK 53:0
Central fault
of the internal extension: DHW circulation
53:2
Function connection sK:
pump
External heating circuit
pump (heating circuit A1)
53:3
Function connection sK:
External circulation pump
for cylinder heating
54:0
Without solar control
54:1
With Vitosolic 100 (autounit
matic adjustment on connection)
54:2
With Vitosolic 200 (automatic adjustment on connection)
DHW
56:1
Set DHW temperature
56:0
Set DHW temperature
adjustable from 10 to
adjustable from 10 to
above 60 °C
60 °C
Note
Maximum value subject
to boiler coding card.
Observe the max. permissible DHW temperature.
45
Coding
Coding in the delivered condition
58:0
Without auxiliary function for DHW heating
59:0
5b:0
60:20
62:2
Cylinder heating:
Starting point -2.5 K
Stopping point +2.5 K
DHW cylinder directly
connected to the boiler
During DHW heating,
the boiler water temperature is max. 20 K
higher than the set
DHW temperature
Circulation pump with
2 min run-on time after
cylinder heating
63:0
Without auxiliary function for DHW heating
(only for constant temperature control units)
65:...
Information regarding
the type of diverter
valve (not adjustable)
67:40
With the Vitosolic: Third
set DHW temperature =
40 °C
46
Possible change
Input of a second set
58:10
DHW temperature, adjusto
table from 10 to 60 °C
58:60
(observe coding addresses "56" and "63")
Starting point adjustable
59:1
from 1 to 10 K below the
to
set value
59:10
5b:1
DHW cylinder connected
downstream of the low
loss header
The difference between
60:5
the boiler water temperato
ture and the set DHW
60:25
temperature is adjustable
from 5 to 25 K
62:0
Circulation pump without
run-on
Run-on time adjustable
62:1
from 1 to 15 min
to
62:15
63:1
Auxiliary function: 1 x
daily
Every 2 days to every 14
63:2
days
to
63:14
63:15
2 x daily
65:0
Without diverter valve
65:1
Diverter valve by
Viessmann
65:2
Diverter valve by Wilo
65:3
Diverter valve by Grundfos
67:0
Without third set DHW
temperature
Third set DHW tempera67:1
ture adjustable from 1 to
to
60 °C (subject to the set67:60
ting of coding address
"56")
5692 672 GB
Code 2 (cont.)
Coding
Code 2 (cont.)
Coding in the delivered condition
6F:...
Maximum output for
DHW heating in %; defaulted by the boiler
coding card
71:0
DHW circulation pump:
"ON" in accordance
with the time program
(only for weather-compensated control units)
72:0
DHW circulation pump:
"ON" in accordance
with the time program
(only for weather-compensated control units)
Possible change
Max. output during DHW
6F:0
heating adjustable from 0
to
to 100 %
6F:100
73:0
DHW circulation pump:
"ON" in accordance
with the time program
(only for weather-compensated control units)
73:1
to
73:6
73:7
Without LON communication module (only for
weather-compensated
control units)
LON subscriber number
(only for weather-compensated control units)
76:1
With LON communication
module; automatic recognition
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
General
76:0
77 :1
71:1
71:2
72:1
72:2
"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
during the time program
"ON" 1x/h for 5 min
"ON" up to 6x/h for 5 min
permanently "ON"
Note
Allocate each number
only once.
5692 672 GB
79:1
With LON communication module: Control
unit is fault manager
(only for weather-compensated control units)
79:0
Control unit is not fault
manager
47
Coding
Code 2 (cont.)
5692 672 GB
Coding in the delivered condition
Possible change
7b:0
Do not transmit time
7b:1
With LON communication module: The control
unit transmits the time
(only for weather-compensated control units)
7F:0
Apartment block
7F:1
Detached house (only
Separate adjustment of
for weather-compenholiday program and time
sated control units)
program for DHW heating, as option
80:0
Immediate fault message
80:1
A fault message is displayed, providing a fault 80:2
The fault message is isis active for at least 5 s to
sued after a delay that is
adjustable from 10 s to
80:199
995 s; 1 step ≙ 5 s
81:1
Automatic summer/win- 81:0
Manual summer/winter
ter time changeover
time changeover
81:2
Radio clock module is
automatically detected
81:3
With LON communication
module: The control unit
receives the time
82:0
Operation with natural
82:1
Operation with LPG (only
gas
adjustable if coding address 11:9 has been set)
48
Coding
Code 2 (cont.)
Coding in the delivered condition
85:0
Standard mode
Possible change
85:1
Manual calibration of the
combustion controller
(only adjustable if coding
address 11:9 has been
set).
The red fault indicator
also flashes during calibration. The process has
terminated when the red
fault indicator no longer
flashes (after approx.
1 min).
Note
Heat must be drawn off
during manual calibration.
88:0
8A:175
90:128
91:0
Temperature displayed
in °C (Celsius)
Never adjust
Time constant for calculating the adjusted outside temperature
21.3 hours
88:1
Temperature displayed in
°F (Fahrenheit)
90:0
to
90:199
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.
The external heating program changeover affects
the heating circuit without
mixer
The external heating program changeover affects
the heating circuit with
mixer
The external heating program changeover affects
the heating circuit without
mixer and the heating circuit with mixer
No external heating pro- 91:1
gram changeover via
external extension (only
for weather-compensated control units)
91:2
5692 672 GB
91:3
49
Coding
Coding in the delivered condition
95:0
Without Vitocom 100
communication interface
97:0
With LON communication module: The outside temperature of the
sensor connected to the
control unit is utilised
internally (only for
weather-compensated
control units)
98:1
Viessmann system
number (in conjunction
with monitoring several
systems via
Vitocom 300)
9b:0
No minimum set boiler
water temperature for
external demand
Possible change
95:1
With the Vitocom 100
communication interface;
automatic recognition
97:1
The control unit receives
the outside temperature
97:2
The control unit sends
the outside temperature
to the Vitotronic 200-H
9C:20
9C:0
9C:5
to
9C:60
Monitoring LON subscribers
When there is no response from a subscriber, values defaulted by
the control unit are used
after 20 min and a fault
message is issued
(only for weather-compensated control units)
9F:8
Differential temperature
8 K; only in conjunction
with the mixer circuit
(only for weather-compensated control units)
Boiler circuit, mixer circuit
A0:0
Without remote control
(only for weather-compensated control units)
50
98:1
to
98:5
System number adjustable from 1 to 5
9b:1
to
9b:127
Minimum set boiler water
temperature adjustable
from 1 to 127 °C (limited
by the boiler-specific
parameters)
No monitoring
Time adjustable from 5 to
60 min
9F:0
to
9F:40
Differential temperature
adjustable from 0 to 40 K
A0:1
With Vitotrol 200 (automatic recognition)
With Vitotrol 300 (automatic recognition)
A0:2
5692 672 GB
Code 2 (cont.)
Coding
Code 2 (cont.)
Coding in the delivered condition
A3:2
Outside temperature
below 1 °C: Heating circuit pump "ON"
Outside temperature
above 3 °C: Heating circuit pump "OFF"
!
Possible change
Heating circuit pump
A3:-9
"ON/OFF" (see the folto
lowing table)
A3:15
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.
Heating circuit pump
"ON" at
-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" at
-8 °C
-7 °C
-6 °C
-5 °C
-4 °C
-3 °C
-2 °C
-1 °C
0 °C
1 °C
2 °C
3 °C
16 °C
5692 672 GB
Parameter
Address A3:...
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
to
15
51
Coding
Code 2 (cont.)
Coding in the delivered condition
Boiler circuit, mixer circuit
A4:0
With frost protection
(only for weather-compensated control units)
Possible change
A4:1
No frost protection, adjustment only possible if
coding address "A3: -9"
has been selected.
Note
Observe the note for
code "A3"
A5:5
With heating circuit
pump logic function
(economy circuit): Heating circuit pump "OFF"
when the outside temperature (AT) is 1 K
higher than set room
temperature (RTset)
AT > RTset + 1 K (only
for weather-compensated control units)
A5:1
to
A5:15
Without heating circuit
pump logic function
With heating circuit pump
logic function: Heating
circuit pump "OFF", if
(see the following table)
With heating circuit pump logic function: Heating
circuit pump OFF, if
AT > RTset + 5 K
AT > RTset + 4 K
AT > RTset + 3 K
AT > RTset + 2 K
AT > RTset + 1 K
AT > RTset
AT > RTset - 1 K
AT > RTset - 9 K
5692 672 GB
Parameter address
A5:...
1
2
3
4
5
6
7
to
15
A5:0
52
Coding
Code 2 (cont.)
Coding in the delivered condition
Boiler circuit, mixer circuit
A6:36
Extended economy
function disabled (only
for weather-compensated control units)
Possible change
A6:5
to
A6:35
A7:0
Without mixer economy A7:1
function (only for weather-compensated control
units)
A8:1
Heating circuit with
mixer M2 creates a demand for the internal
circulation pump (only
for weather-compensated control units)
5692 672 GB
A8:0
Extended economy mode
is enabled, i.e. the burner
and heating circuit pump
are switched OFF and
the mixer will be closed at
a variable value that is
adjustable between 5 and
35 °C plus 1 °C. This
value is based on the adjusted outside temperature, comprising the
actual outside temperature and a time constant
that takes the cooling
down of an average
building into consideration.
With mixer economy
function (extended heating circuit pump logic):
Heating circuit pump also
"OFF" if the mixer was
closed longer than
20 min. Heating pump
"ON":
& If the mixer changes to
control function
& or
& If there is a risk of frost
Heating circuit with mixer
M2 creates no demand
for the internal circulation
pump
53
Coding
Code 2 (cont.)
Possible change
A9:0
Without pump idle time
With pump idle time; adA9:1
justable from 1 to 15
to
A9:15
b0:1
b0:2
b0:3
b2:8
b5:0
54
Heating with room temperature hook-up must
be programmed for remote control and for the
heating circuit: Room
influence factor 8
(only for weather-compensated control units;
change the coding only
for the heating circuit
with mixer M2)
With remote control: No
room temperature-compensated heating circuit
pump logic function
(only for weather-compensated control units;
change the coding only
for the heating circuit
with mixer M2)
b2:0
b2:1
to
b2:64
b5:1
to
b5:8
Heating mode: weathercompensated
Reduced mode: with
room temperature hookup
Heating mode: with room
temperature hook-up
Reduced mode: weathercompensated
Heating mode/reduced
mode: with room temperature hook-up
Without room influence
Room influence factor
adjustable from 1 to 64
Heating circuit pump
logic function; see the following table
5692 672 GB
Coding in the delivered condition
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)
b0:0
With remote control:
Heating mode/reduced
mode: weather-compensated (only for
weather-compensated
control units; change
the coding only for the
heating circuit with
mixer M2)
Coding
5692 672 GB
Code 2 (cont.)
Parameter address b5:...
1:
With heating circuit pump logic function: Heating circuit pump OFF, if
enabled RTactual > RTset + 5 K; disabled RTactual < RTset + 4 K
2:
enabled RTactual > RTset + 4 K; disabled RTactual < RTset + 3 K
3:
enabled RTactual > RTset + 3 K; disabled RTactual < RTset + 2 K
4:
enabled RTactual > RTset + 2 K; disabled RTactual < RTset + 1 K
5:
6:
7:
8:
enabled RTactual > RTset + 1 K; disabled RTactual < RTset
enabled RTactual > RTset; disabled RTactual < RTset - 1 K
enabled RTactual > RTset - 1 K; disabled RTactual < RTset - 2 K
enabled RTactual > RTset - 2 K; disabled RTactual < RTset - 3 K
Coding in the delivered condition
Boiler circuit, mixer circuit
C5:20
Electronic minimum
flow temperature limit
20 °C (only for weathercompensated control
units)
C6:74
Electronic maximum
flow temperature limit
74 °C (only for weathercompensated control
units)
d3:14
Heating curve slope =
1.4 (only for weathercompensated control
units)
d4:0
Heating curve level = 0
(only for weather-compensated control units)
d5:0
The external heating
program changeover alters the heating program to "Constant
operation with reduced
room temperature"
(only for weather-compensated control units)
Possible change
C5:1
to
C5:127
Minimum temperature
limit adjustable from 1 to
127 °C (limited by boilerspecific parameters)
C6:10
to
C6:127
Maximum temperature
limit adjustable from 10 to
127 °C (limited by boilerspecific parameters)
d3:2
to
d3:35
Heating curve slope adjustable from 0.2 to 3.5
(see page 29)
d4:–13
to
d4:40
d5:1
Heating curve level adjustable from –13 to 40
(see page 29)
The external heating program changeover
changes the heating program to "Constant central
heating with standard
room temperature"
55
Coding
Code 2 (cont.)
Coding in the delivered condition
E1:1
With remote control:
The set day temperature is adjustable at the
remote control unit from
10 to 30 °C (only for
weather-compensated
control units)
E2:50
With remote control: No
display correction for
the actual room temperature (only for
weather-compensated
control units)
F1:0
Screed drying function
disabled (only for
weather-compensated
control units).
Possible change
E1:0
Set day temperature adjustable from 3 to 23 °C
E1:2
Set day temperature adjustable from 17 to 37 °C
E2:0
to
E2:49
E2:51
to
E2:99
F1:1
to
F1:6
F1:15
F2:8
Time limit for party
mode or external heating program changeover via key: 8 hours
(only for weather-compensated control units)
F2:0
F2:1
to
F2:12
Display correction -5 K
to
Display correction -0.1 K
Display correction +0.1 K
to
Display correction +4.9 K
Screed drying function
adjustable in accordance
with 6 optional temperature/time profiles (see
page 100)
Constant flow temperature 20 °C
No time limit for party
mode
Time limit adjustable from
1 to 12 hours * 1
*1
*1 Party
Run-on time of the internal circulation pump in
heating mode 12 min
(only for constant temperature control units)
F5:0
F5:1
to
F5:20
No run-on time for the internal circulation pump
Run-on time of the internal circulation pump adjustable from 1 to 20 min
mode ends automatically in the "Heating and DHW" program, when the system
changes over to operation with standard room temperature.
56
5692 672 GB
F5:12
Coding
Code 2 (cont.)
Coding in the delivered condition
F6:25
In the "DHW only" operating mode, the internal
circulation pump is permanently ON (only for
constant temperature
control units)
F7:25
In "Standby mode", the
internal circulation
pump is permanently
ON (only for constant
temperature control
units)
F8:-5
Temperature limit for
terminating the reduced
mode -5 ºC, see example on page 102.
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
example on page 102.
(only for weather-compensated control units)
F9:+10
to
F9:-60
Temperature limit for raising the set room temperature to the value selected
for standard mode adjustable from
+10 to -60 °C
5692 672 GB
F9:-14
Possible change
F6:0
In the "DHW only" operating mode, the internal circulation pump is
permanently OFF
In the "DHW only" operatF6:1
ing mode, the internal cirto
culation pump will be
F6:24
started for 10 min respectively 1 to 24 times per
day.
F7:0
In "Standby mode", the
internal circulation pump
is permanently OFF
In "Standby mode", the
F7:1
internal circulation pump
to
in operating mode will be
F7:24
started for 10 min respectively 1 to 24 times per
day.
Temperature limit adjusF8:+10
table from
to
+10 to -60 °C
F8:-60
F8:-61
Function disabled
57
Coding
Code 2 (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
room temperature to operation with standard
room temperature, by
20 %. See example on
page 103 (only for
weather-compensated
control units).
Fb:30
Duration for raising the
set boiler water temperature or the set flow
temperature (see coding address "FA")
60 min. See example on
page 103 (only for
weather-compensated
control units).
Possible change
Temperature rise adjustaFA:0
ble from 0 to 50 %
to
FA:50
Fb:0
to
Fb:150
Duration adjustable from
0 to 300 min;
1 step ≙ 2 min
Resetting codes to their delivered condition
Constant temperature control unit:
2. e
"Factory set? Yes"
appears.
1. L + G simultaneously for
approx. 2 s.
3. d
to confirm
or
2. e
press.
a/b
Weather-compensated control unit:
to select "Factory set?
No".
5692 672 GB
1. L + G simultaneously for
approx. 2 s.
58
Service scans
Service level overview
Function
Temperatures, boiler coding card and brief scans
Relay test
Key combination
Press K and G simultaneously for approx. 2 s
Press K and d simultaneously for approx. 2 s
Press K and F simultaneously for approx. 2 s
Press c
Max. output (heating
mode)
Operating conditions and
sensors
Service scan
c (if "Service" flashes)
Adjusting the display con- Press d and asimultatrast
multaneously; the display
darkens
Press d and b simultaneously; the display becomes lighter
Calling up acknowledged Press d for approx. 3 s
fault messages
Fault history
Press G and d simultaneously for approx. 2 s
Subscriber check (in con- Press L and d simultajunction with LON)
neously for approx. 2 s
Emissions test function
"S"
Coding level 1
Plain text display
5692 672 GB
Coding level 2
Numerical display
Exit
Press d
Page
60
Press d
63
Press d
16
Press d
65
Press d
–
34
–
–
–
68
Press d
69
33
Press L
and d simultaneously
F and E –
Weather-compensated
or O and
control unit:
F simultaPress F and E for apneously for
prox. 2 s simultaneously
Constant temperature con- approx. 1 s,
alternatively
trol unit:
automatic
Press O and F for apafter 30 min
prox. 2 s simultaneously
36
Press K and L simultaPress K
neously for approx. 2 s
and L simultaneously for approx.
1s
39
Press L and G simulta- Press L
neously for approx. 2 s
and G simultaneously for approx.
1s
59
Service scans
Service level overview (cont.)
Function
Resetting codes to their
delivered condition
Key combination
Press L and G simultaneously for approx. 2 s;
then e
Exit
–
Page
58
Temperatures, boiler coding card and brief scans
Weather-compensated control unit
Press the following keys:
2. a/b
for the required scan.
1. K + G simultaneously for
approx. 2 s.
3. d
Scanning is completed.
The following values can be scanned, subject to the actual system equipment level:
Display screen
Explanation
Slope A1 – level A1
Slope M2 – level M2
Outside temp. adj.
The adjusted outside temperature can be reset
Outside temp. actual
to the actual outside temperature with e.
Boiler temp. set
Boiler temp. actual
DHW temp. set
DHW temp. actual
DHW outlet temp. actual
Only for combi boilers
DHW outlet temp. set
Only for combi boilers
Flow temp. set
Heating circuit with mixer
Flow temp. actual
Heating circuit with mixer
Mixed flow temp. set
Low loss header
Mixed flow temp. actual
Low loss header
Boiler coding card
Brief scan 1 to 8
1
60
Display screen
Software version
Control unit
Equipment version
Burner control unit
version
5692 672 GB
Brief
scan
Service scans
Temperatures, boiler coding card and brief . . . (cont.)
Brief
scan
2
3
4
5
6
Maximum demand temperature
Number
of KM
BUS
subscribers
Software Software Software Software Software
Flow
version
version
version
version
version
switch
External
LON
Solar
Program- Mixer
position
extension
module
control
ming unit exten0: no exter0: no
unit
sion
nal extenLON
0: no
0: no
sion
module
solar
mixer
control
extenunit
sion
Software version
Type
Equipment type
Burner control unit
Burner control unit
External 0 to 10 V hook-up
0: no ex- 0: no ex- 0
Display in °C
ternal de- ternal
0: no external hook-up
blocking
mand
1: exter1: external
nal deblocking
mand
Number of LON sub- Check
Max. output
scribers
digit
Details in %
Boiler
Heating circuit A1
Heating circuit M2
(without mixer)
(with mixer)
Software
0
0
Remote Software Remote
version
control
version
control
Remote
0: w/o
Remote
0: w/o
1: Vitotr- control
1: Vitotr- control
ol 200 0: no reol 200 0: no re2: Vitotr- mote con2: Vitotr- mote
ol 300 trol
ol 300 control
System designs 01
to 06
5692 672 GB
7
Display screen
61
Service scans
Temperatures, boiler coding card and brief . . . (cont.)
Brief
scan
8
Display screen
Internal circulation
pump
Software
Variable
version
speed
variable
pump
speed
0: w/o
pump
1: Wilo
2: Grun- 0: no
variable
dfos
speed
pump
Heating circuit pump to connection extension
Variable Software Variable Software
version
speed
version
speed
variable
pump
variable
pump
speed
0: w/o
speed
0: w/o
pump
1: Wilo
pump
1: Wilo
2: Grun- 0: no vari2: Grun- 0: no
able speed
dfos
variable
dfos
pump
speed
pump
Constant temperature control unit
Press the following keys:
2. a/b
for the required scan.
1. K + G simultaneously for
approx. 2 s.
3. d
Scanning is completed.
The following values can be scanned, subject to the actual system equipment level:
Brief scan
Display screen
Flow
switch position
System designs 1 to 6
1
Software
version
Solar control unit
0: no solar
control
unit
Software version
Burner control unit
62
Software version
Control unit
Software
version
External
extension
0: no external extension
Software
version
Programming unit
0
5692 672 GB
0
Service scans
Temperatures, boiler coding card and brief . . . (cont.)
Brief scan
E
Display screen
3
A
4
5
b
C
c
0: no external demand
1: external
demand
0
0
0
0
0
0
0
d
0
0: no exter- External 0 to 10 V hook-up
Display in °C
nal block0: no external hook-up
ing
1: external
blocking
0
Set boiler water temperature
0
Highest demand temperature
Burner control unit type
Equipment type
0
Set cylinder temperature
0
Max. output in %
Boiler coding card (hexadecimal)
Version
Version
Equipment
Burner control unit
Software
0
0
Variable
version
speed
variable
pump
speed pump
0 w/o
0: no vari1 Wilo
2 Grundfos able speed
pump
Checking outputs (relay test)
5692 672 GB
Weather-compensated control unit
Press the following keys:
2. a/b
for the required relay output.
1. K + d simultaneously for
approx. 2 s.
3. d
Relay test is completed.
The following relay outputs can be controlled subject to system design:
Display screen
Explanation
Base load
Burner modulation base load
Full load
Burner modulation full load
Intern.pump On
Int. output 20
63
Service scans
Checking outputs (relay test) (cont.)
Display screen
Htg. system valve
Valve in middle pos.
DHW valve
Htg.cir.pump M2 On
Mix.valve open
Mix.valve closed
Intern.output On
Htg.cir.pump A1 On
DHW pump On
Recirc.pump On
Centr.fault ind.On
Explanation
Diverter valve set to heating mode
Diverter valve in central position (filling/draining)
Diverter valve set to DHW mode
Mixer extension
Mixer extension
Mixer extension
Output sK internal extension
External extension H1
External extension H1
External extension H1
External extension H1
Constant temperature control unit
Press the following keys:
2. a/b
for the required relay output.
1. K + d simultaneously for
approx. 2 s.
3. d
Relay test is completed.
5692 672 GB
The following relay outputs can be controlled subject to system design:
Display screen
Explanation
1
Burner modulation base load
2
Burner modulation full load
3
Internal pump / output 20 "ON"
4
Diverter valve set to heating mode
5
Diverter valve in central position (filling/draining)
6
Diverter valve set to DHW mode
10
Output sK internal extension
11
Heating circuit pump A1 External extension H1
12
Cylinder primary pump External extension H1
14
Central fault message External extension H1
64
Service scans
Scanning operating conditions and sensors
5692 672 GB
Weather-compensated control unit
Press the following keys:
3. c
press again.
1. c
"Select heating circuit" is
displayed.
4. a/b for the required operating
condition.
2. d
to confirm; wait approx.
4 s.
5. d
Scanning is completed.
The following operating conditions can be scanned, subject to the actual
system equipment level for heating circuit A1 and heating circuit with
mixer M2:
Display screen
Explanation
Participant no.
Programmed subscriber no. in the LON system
Holiday program
If a holiday program has been entered
Departure date
Date
Return date
Date
Outdoor temp., ... °C
Actual value
Boiler temp., ... °C
Actual value
Supply temp., ... °C
Actual value (only for mixer circuit M2)
Normal
Set value
room temp., ... °C
Room temperature, ... °C
Actual value
Ext. room t.setpt, ... °C
For external hook-up
DHW temp., ... °C
Actual DHW temperature
Solar DHW temp. ... °C
Actual value
Collector temp., ... °C
Actual value
Com. supply temp., ... °C
Actual value, only with low loss header
Burner, ...h
Actual hours run
Burner cycles, ...
Hours run and burner starts (reset after maintenance with e to "0").
Solar energy, ... kW/h
Time
Date
Burner OFF/ON
Intern. pump OFF/ON
Output 20
Intern. output OFF/ON
Output 28, if an internal extension is installed
Htg. circ. pump OFF/ON
If an external extension or extension kit for one
heating circuit with mixer is installed
DHW pump OFF/ON
If an external extension is installed
Recirc. pump OFF/ON
If an external extension is installed
65
Service scans
Scanning operating conditions and sensors (cont.)
Display screen
Centr. fault ind. OFF/ON
Mix. valve OPEN/CLOSE
Solar pump OFF/ON
Solar pump, ...h
Various languages
Explanation
If an external extension is installed
If an extension kit for one heating circuit with
mixer is installed
If a Vitosolic is installed
Actual hours run
The respective languages can be selected as
permanent display language with d
Constant temperature control unit
Press the following keys:
1. c
2. a/b for the required operating
condition.
press.
3. d
Scanning is completed.
5692 672 GB
The following operating conditions can be scanned, subject to the actual
system equipment level:
Display screen Explanation
1
15 °C/°F Actual outside temperature
3
65 °C/°F Actual boiler water temperature
5
50 °C/°F Actual cylinder temperature (if a cylinder temperature sensor
is installed)
5□ 45 °C/°F Solar - actual DHW temperature
6
70 °C/°F Actual collector temperature
P
Burner hours run (after a service, reset with e to "0")
263572 h
PPP
Burner starts (after a service, reset with e to "0")
030529
PPPPP
Solar circuit pump hours run
001417 h
PPPPPP
Solar energy in kWh
002850
66
Troubleshooting
Fault display
Fault display layout
A Fault display
B Fault symbol
C Fault number
D Fault code
The red fault indicator flashes for
every fault.
A fault in the burner control unit
causes the display to show "E".
Constant temperature control unit
In case of a fault, the fault code and
fault symbol is displayed at the programming unit
Weather-compensated control unit
5692 672 GB
The display flashes "Fault" if a fault
message is issued
Plain text fault displays:
& Burner module
& Outdoor sensor
& Supply sensor
& Boiler sensor
& Com.supply sens.
& DHW sensor
& Flue gas sensor
& DHW outlet sensor
& Room sensor
67
Troubleshooting
Fault display (cont.)
&
&
Collector sensor
Solar DHW sensor
&
&
Remote control
Fault participant
Checking and acknowledging faults
Note
If an acknowledged fault is not
removed, the fault message will be redisplayed:
& With a constant temperature control
unit after 24 h
& With a weather-compensated control unit at 7:00 h the next day
Constant temperature control unit
Press the following keys:
2. d
All fault messages are
acknowledged simultaneously, the fault display
will be deleted and the red
fault indicator continues to
flash.
3. d
All fault messages are
acknowledged simultaneously, the fault display
will be deleted and the red
fault indicator continues to
flash.
1. a/b for further fault codes.
Weather-compensated control unit
Press the following keys:
1. c
for the current fault.
2. a/b for further fault messages.
Calling up acknowledged fault messages
Press the following keys:
for approx. 3 s.
5692 672 GB
1. d
2. a/b for the acknowledged fault.
68
Troubleshooting
Fault display (cont.)
Calling up fault codes from the fault memory (fault history)
The 10 most recent faults are saved
and may be scanned.
The faults are ordered by date, thus
the most recent fault is fault number 1.
Press the following keys:
1. G + d simultaneously for
approx. 2 s.
2. a/b
for individual fault
codes.
3. Note
All saved fault codes can be
deleted with e.
4. d
Scanning is completed.
Fault codes
Const.
weath.comp.
System characteristics
Cause
X
X
Control mode
Service
10
X
18
X
20
X
Regulates as
if the outside
temperature
was 0 °C
Regulates as
if the outside
temperature
was 0 °C
Regulates
without flow
temperature
sensor (low
loss header)
5692 672 GB
Fault
code
on the
display
0F
Measures
Service the equipment. After the
service, set coding address
"24:0".
Outside tem- Check the outside
temperature senperature
sor (see page 79).
sensor
shorted out
Outside tem- Check the outside
temperature senperature
sor (see page 79).
sensor lead
broken
System flow Check the low
temperature loss header sensor (see page 80).
sensor
shorted out
69
Troubleshooting
Fault codes (cont.)
Fault
code
on the
display
28
Const.
weath.comp.
System characteristics
Cause
Measures
X
Regulates
without flow
temperature
sensor (low
loss header)
Burner
blocked
System flow
temperature
sensor lead
broken
Check the low
loss header sensor (see page 80).
30
X
X
Boiler water
temperature
sensor
shorted out
Boiler water
temperature
sensor lead
broken
Heating circuit with
mixer M2
flow temperature
sensor
shorted out
Heating circuit M2 flow
temperature
sensor lead
broken
Short circuit
in the cylinder temperature sensor
or comfort
sensor
Check the boiler
water temperature sensor (see
page 80).
Check the boiler
water temperature sensor (see
page 80).
Check the flow
temperature sensor.
38
X
X
Burner
blocked
40
X
Mixer closes
48
X
Mixer closes
X
X
No DHW heating
51
X
X
No DHW heating
Outlet temperature
sensor
shorted out
Check the cylinder temperature
sensor (see
page 80).
Check the comfort
sensor (see
page 82).
Check the sensor
(see page 82).
5692 672 GB
50
Check the flow
temperature sensor.
70
Troubleshooting
5692 672 GB
Fault codes (cont.)
Fault
code
on the
display
58
Const.
weath.comp.
System characteristics
Cause
Measures
X
X
No DHW heating
Cylinder
temperature
sensor or
comfort sensor lead broken
59
X
X
No DHW heating
92
X
X
Control mode
93
X
X
Control mode
94
X
X
Control mode
9A
X
X
Control mode
Outlet temperature
sensor lead
broken
Collector
temperature
sensor
shorted out;
connects to
the Vitosolic
at S1
Cylinder
temperature
sensor
shorted out;
connects to
the Vitosolic
at S3
Temperature
sensor
shorted out;
connects to
the Vitosolic
at S2
Collector
temperature
sensor lead
broken; connects to the
Vitosolic at
S1
Check the cylinder temperature
sensor (see
page 80).
Check the comfort
sensor (see
page 82).
Check the sensor
(see page 82).
Check the sensor
at the Vitosolic.
Check the sensor
at the Vitosolic.
Check the sensor
at the Vitosolic.
Check the sensor
at the Vitosolic.
71
Troubleshooting
Fault codes (cont.)
Fault
code
on the
display
9b
Const.
weath.comp.
System characteristics
Cause
Measures
X
X
Control mode
Check the sensor
at the Vitosolic.
9C
X
X
Control mode
9F
X
X
Control mode
X
Control mode
as per delivered condition
Burner
blocked
Cylinder
temperature
sensor lead
broken; connects to the
Vitosolic at
S3
Temperature
sensor lead
broken; connects to the
Vitosolic at
S2
Solar control
unit fault;
displayed if a
fault without
fault code
occurs at the
solar control
unit
Faulty programming
unit
Flue gas
temperature
sensor
shorted out
Communication fault;
programming unit (internal)
Internal fault
b0
X
X
b1
X
X
Control mode
as per delivered condition
b4
X
X
Regulates as
if the outside
temperature
was 0 °C
72
Check the solar
control unit (see
solar control unit
service instructions).
Replace the programming unit.
Check the flue
gas temperature
sensor (see
page 85).
Check connections and replace
the programming
unit if required.
Replace the control unit.
5692 672 GB
A7
Check the sensor
at the Vitosolic.
Troubleshooting
5692 672 GB
Fault codes (cont.)
Fault
code
on the
display
b5
Const.
weath.comp.
System characteristics
Cause
Measures
X
X
Internal fault
Replace the control unit.
b7
X
X
Control mode
as per delivered condition
Burner
blocked
b8
X
X
bA
X
bC
X
bd
X
bE
X
bF
X
Boiler coding
card missing, faulty or
incorrect
boiler coding
card
Burner
Flue gas
blocked
temperature
sensor lead
broken
Mixer M2 reg- Communication fault –
ulates to a
flow tempera- extension kit
for heating
ture of 20 °C.
circuit M2
Control mode Communicawithout remote tion fault –
Vitotrol recontrol
mote control,
heating circuit A1
Control mode Communicawithout remote tion fault,
Vitotrol recontrol
mote control,
heating circuit M2
Control mode Vitotrol remote control
incorrectly
programmed
Control mode Incorrect
LON communication
module
Plug in boiler coding card or replace it, if faulty.
Check the flue
gas temperature
sensor (see
page 85).
Check the extension kit connections and coding.
Start the extension kit.
Check connections, cable, coding address "A0"
and remote control DIP switches
(see page 104).
Check connections, cable, coding address "A0"
and remote control DIP switches
(see page 104).
Check remote
control DIP switch
settings (see
page 104).
Replace the LON
communication
module.
73
Troubleshooting
Fault codes (cont.)
Const.
weath.comp.
System characteristics
Cause
Measures
X
X
Control mode
Check connections and coding
address "54".
X
Control mode,
max. pump
speed
Communication fault,
solar control
unit
Communication fault –
external variable speed
heating circuit pump,
heating circuit with
mixer M2
Communication fault –
external variable speed
heating circuit pump,
heating
circuit A1
Communication fault
Vitocom 100
(KM BUS)
Communication fault –
ext. extension
Communication fault,
LON communication
module
Room temperature
sensor, heating circuit A1
shorted out
C6
C7
X
X
Control mode,
max. pump
speed
Cd
X
X
Control mode
CE
X
X
Control mode
CF
X
Control mode
dA
X
Control mode
without room
influence
74
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.
Check the room
temperature sensor, heating circuit A1.
5692 672 GB
Fault
code
on the
display
C2
Troubleshooting
Fault codes (cont.)
weath.comp.
System characteristics
Cause
Measures
X
Control mode
without room
influence
Check the room
temperature sensor, heating circuit with mixer
M2.
dd
X
Control mode
without room
influence
Room temperature
sensor, heating circuit
with mixer
M2 shorted
out
Room temperature
sensor, heating circuit A1
lead broken
dE
X
Control mode
without room
influence
Room temperature
sensor, heating circuit
with mixer
M2 lead broken
Burner
blocked
Burner
blocked
Burner in a
fault state
Fault, supply
voltage 24 V
Fault – flame
amplifier
The ionisation current
lies outside
the permissible range
Fault
code
on the
display
db
Const.
X
X
E5
X
X
E8
X
X
5692 672 GB
E4
Check the room
temperature sensor, heating circuit A1 and the
remote control
DIP switch settings (see
page 104).
Check the room
temperature sensor, heating circuit with mixer M2
and the remote
control DIP switch
settings (see
page 104).
Replace the control unit.
Replace the control unit.
Check the ionisation electrode and
cable.
Press "E
RESET".
75
Troubleshooting
Fault codes (cont.)
Const.
weath.comp.
System characteristics
Cause
X
X
Burner in a
fault state
The ionisation current
lies outside
the permissible range
during calibration
EA
X
X
Burner in a
fault state
Eb
X
X
Burner in a
fault state
EC
X
X
Burner in a
fault state
Ed
X
X
F0
X
X
F1
X
X
Burner in a
fault state
Burner
blocked
Burner in a
fault state
76
Measures
Check the ionisation electrode and
cable.
Check the flue
gas system for
tightness.
Press "E
RESET".
Check the ionisaThe ionisation electrode and
tion current
cable.
lies outside
the permissi- Press "E
RESET".
ble range
during calibration
Initiate a heat
Heat drawdraw-off. Switch
off repeatedly too low the boiler OFF
and ON again.
during caliPress "E
bration
RESET".
Check the ionisaThe ionisation electrode and
tion current
cable.
lies outside
the permissi- Press "E
RESET".
ble range
during calibration
Internal fault Replace the control unit.
Internal fault Replace the control unit.
The flue gas Check the heating
temperature system fill level.
Vent the system.
limiter has
Press "E
responded.
RESET" after the
flue gas system
has cooled down.
5692 672 GB
Fault
code
on the
display
E9
Troubleshooting
Fault codes (cont.)
Fault
code
on the
display
F2
Const.
weath.comp.
System characteristics
Cause
X
X
Burner in a
fault state
The temperature limiter has
responded.
F3
X
X
Burner in a
fault state
F4
X
X
Burner in a
fault state
F8
X
X
Burner in a
fault state
Measures
5692 672 GB
Check the heating
system fill level.
Check the circulation pump. Vent
the system.
Check the temperature limiter
and connecting
cables.
Press "E
RESET".
Flame signal Check the ionisation electrode and
is already
connecting cable.
present at
burner start. Press "E
RESET".
No flame sig- Check the ionisanal.
tion electrode and
cable, measure
the ionisation current, check the
gas pressure,
check the gas
train, ignition,
ignition module,
ignition electrodes and the condensate drain.
Press "E
RESET".
Check the gas
The fuel
valve closes train. Check both
control paths.
too late
Press "E
RESET".
77
Troubleshooting
Fault
code
on the
display
F9
Const.
weath.comp.
System characteristics
Cause
Measures
X
X
Burner in a
fault state
Fan speed
too low during the burner start
FA
X
X
Burner in a
fault state
Fan not at
standstill
FC
X
X
Burner in a
fault state
Check the fan,
check the fan
cables and supply; check the fan
control.
Press "E
RESET".
Check the fan, fan
connecting cables
and fan control.
Press "E
RESET".
Check the gas
train. Check the
flue gas system.
Press "E
RESET".
Fd
X
X
FE
X
X
78
Gas train
faulty or
faulty modulation valve
control; or
flue gas path
blocked
Burner in a
Burner con- Check ignition
fault state
trol unit fault electrodes and
connecting
cables. Check
whether a strong
interference
(EMC) field exists
near the equipment.
Press "E
RESET".
Replace control
unit if the fault
persists.
Boiler coding Press "E
Burner
blocked or in a card or main RESET". Replace
boiler coding card
PCB faulty
fault state
or control unit if
the fault persists
5692 672 GB
Fault codes (cont.)
Troubleshooting
Fault codes (cont.)
Fault
code
on the
display
FF
Const.
weath.comp.
System characteristics
Cause
X
X
Internal fault
Burner
blocked or in a or "E
RESET" key
fault state
blocked
Measures
Start the equipment again. Replace the control
unit, if the equipment will not restart.
Repairs
Checking the outside temperature sensor (weather-compensated control unit)
5692 672 GB
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.
79
Troubleshooting
Repairs (cont.)
3. Where actual values strongly deviate from the curve values, disconnect the wires at the sensor and
repeat test immediately at the sensor.
4. Subject to result, replace the lead
or the outside temperature sensor.
5692 672 GB
Checking the boiler water temperature sensor, the cylinder
temperature sensor or the flow temperature sensor for a low
loss header
80
Troubleshooting
Repairs (cont.)
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.
5692 672 GB
Danger
The boiler water temperature sensor is immersed in
the heating water (risk of
scalding).
Drain the boiler before replacing the sensor.
81
Troubleshooting
Repairs (cont.)
Check the outlet temperature sensor or comfort sensor (gas
combi boilers only)
1. Disconnect the leads from outlet
temperature sensor A or comfort
sensor B.
5692 672 GB
2. Check the sensor resistance and
compare it with the curve.
82
Troubleshooting
Repairs (cont.)
3. Replace the sensor in case of
severe deviation.
5692 672 GB
Note
Water can leak when replacing the
outlet temperature sensor. Close
the cold water shut-off valve. Drain
the DHW line and the plate-type
heat exchanger (DHW side).
83
Troubleshooting
Repairs (cont.)
Checking the plate-type heat exchanger
1. Shut off and drain the boiler on its
heating water and DHW side.
2. Release the side closures and
pivot the control unit forward.
3. Pull the leads from comfort sensor
A.
4. Remove the retaining clip and
siphon B.
5. Remove thermal insulation C.
6. Undo screws D and remove
plate-type heat exchanger E
through the front.
Note
During removal, small amounts of
water may trickle out and escape
from the removed plate-type heat
exchanger.
7. Check the DHW side for scaling
and, if required, clean or replace
the plate-type heat exchanger.
F
G
H
K
Heating return
Cold water
Heating flow
DHW
8. Check the heating water side for
contamination and, if required,
clean or replace the plate-type
heat exchanger.
10.
84
Danger
Escaping gas leads to a
risk of explosion.
Check gas equipment for
tightness.
5692 672 GB
9. Install in reverse order with new
gaskets.
Troubleshooting
Repairs (cont.)
Checking the flue gas temperature sensor
The flue gas temperature sensor locks out the boiler when the permissible flue
gas temperature is exceeded. Reset the interlock after the flue gas system has
cooled down by pressing "E RESET".
1. Pull the leads from flue gas temperature sensor A.
2. Check the sensor resistance and
compare it with the curve.
5692 672 GB
3. Replace the sensor in case of
severe deviation.
85
Troubleshooting
Repairs (cont.)
Checking 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, check the following:
1. Pull the leads from
thermocouple A.
3. Remove the faulty thermocouple.
4. Install a new thermocouple.
5. After commissioning, press reset
button "E RESET" at the control
unit.
5692 672 GB
2. Check the continuity of the thermocouple with a multimeter.
86
Troubleshooting
Repairs (cont.)
Checking the fuse
1. Switch OFF the power.
3. Remove cover A.
2. Release the side closures and
pivot the control unit down.
4. Check fuse F1 (see connection and
wiring diagram).
Extension kit for heating circuit with mixer
5692 672 GB
Checking the rotational direction of the mixer motor
1. Switch ON/OFF switch A at the
extension kit first OFF and then ON
again. The device will carry out the
following self-test:
& Mixer "Close" (150 s)
& Pump "ON" (10 s)
& Mixer "Open" (10 s)
& Mixer "Close" (10 s)
87
Troubleshooting
Repairs (cont.)
Then standard control mode
resumes.
2. 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
Changing the rotational direction of the mixer motor (if required)
Danger
An electric shock can be life-threatening.
Before opening the equipment, switch OFF the ON/OFF switch and
mains voltage, for example at the fuse or the main isolator.
1. Remove the lower and upper housing cover of the extension kit.
Extension kit installation
instructions
5692 672 GB
A ON/OFF switch
B Rotational direction switch
88
Troubleshooting
Repairs (cont.)
2. Change over the rotational direction switch:
Switch position I for central heating
return from the left (delivered condition).
Switch position II for central heating return from the right.
Checking the Vitotronic 200-H (accessories)
5692 672 GB
The Vitotronic 200-H is connected to the control unit via the LON cable. To test
the connection, carry out a subscriber check at the boiler control unit (see page
33).
89
Function description
Constant temperature control unit
Control and display elements
A Pressure gauge
B Fault indicator (red)
C Optolink interface
only in conjunction with the diagnostic adaptor (accessory) and
Vitosoft (accessory)
D
E
F
G
ON indicator (green)
Reset button
User interface
ON/OFF switch
Keys at the user interface:
O
Set boiler water temperature
F
Set DHW temperature
O+F Emissions test function
K
Standby mode
L
DHW only
G
/
b/a
d
c
e
Heating and DHW
Comfort mode
Setting values
Confirmation
Information
Standard settings (Reset)
Heating operation
90
The electronic temperature limiter
inside the burner control unit limits the
boiler water temperature to 82 °C.
Flow temperature setting range: 40 to
74 °C.
5692 672 GB
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.
Function description
Constant temperature control unit (cont.)
DHW heating with gas fired combi boilers
If the flow switch detects that hot
water is being extracted (> 3 l/min)
then the burner, circulation pump and
3-way valve are switched on or changed over. The burner modulates
according to the DHW outlet temperature and is limited by the temperature
limiter (82 °C) on the boiler side.
DHW heating with a gas fired boiler
The burner, the circulation pump and
the three-way valve are started or
changed over if the cylinder temperature lies 2.5 K below the set cylinder
temperature.
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.
Weather-compensated control unit
5692 672 GB
Control and display elements
A Pressure gauge
B Fault indicator (red)
91
Function description
Weather-compensated control unit (cont.)
C Optolink interface
only in conjunction with the diagnostic adaptor (accessory) and
Vitosoft (accessory)
D ON indicator (green)
E Reset button
F User interface
G Rotary selector for standard room
temperature
H ON/OFF switch
Keys at the user interface:
A
B
H
D
E
F
Central heating time program
DHW heating and DHW circulation pump time programs (if connected to the
control unit)
Holiday program
Time/date
Reduced room temperature
Set DHW temperature
O+F
K
L
G
M
N
b/a
d
c
e
Emissions test function
Standby mode
DHW only
Heating and DHW
Party mode
Economy mode
Setting values
Confirmation
Information
Standard settings (Reset)
Heating operation
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.
The electronic temperature limiter
inside the burner control unit limits the
boiler water temperature to 82 °C.
5692 672 GB
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.
92
Function description
Weather-compensated control unit (cont.)
DHW heating with gas fired combi boilers
If the flow switch detects that hot
water is being extracted (> 3 l/min)
then the burner, circulation pump and
3-way valve are switched on or changed over. The burner modulates
according to the DHW outlet temperature and is limited by the temperature
limiter (82 °C) on the boiler side.
DHW heating with a gas fired boiler
The burner, the circulation pump and
the three-way valve are started or
changed over if the cylinder temperature lies 2.5 K below the set cylinder
temperature.
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.
Boosting DHW heating
The set temperature value for the
heating boost is adjustable in coding
address "58".
5692 672 GB
The booster heating function is activated if a switching period is selected
for the fourth time phase.
93
Function description
Extensions for external connections (accessories)
Internal extension H1
Heating circuit pump for a heating
circuit without mixer (coding
address "53:2")
& Cylinder primary pump (coding
address "53:3")
An external safety valve can be connected to gD.
&
5692 672 GB
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)
94
Function description
Extensions for external connections . . . (cont.)
Internal extension H2
Heating circuit pump for heating circuit without mixer (coding address
"53:2")
& Cylinder primary pump (coding
address "53:3")
An extractor can be switched OFF via
connection aBJ when the burner
starts.
&
5692 672 GB
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)
95
Function description
Extensions for external connections . . . (cont.)
External extension H1
aVD
External blocking
(terminals 2 - 3)
& External demand
& (terminals 1 - 2)
& External heating program
changeover (terminals 1 - 2)
(only for weather-compensated operation)
& The allocation of the function
"External heating program
changeover" is set via coding
address "91".
aVF External set value 0 to 10 V
aVG KM BUS
&
&
5692 672 GB
The external extension is connected
to the boiler control unit via the KM
BUS. The following functions can be
controlled or processed simultaneously via the extension:
A ON/OFF switch (on site)
sÖ Heating circuit pump for the
heating circuit without mixer
sA Cylinder primary pump
sK DHW circulation pump (only for
weather-compensated operation)
fÖ Power supply
gÖ Central fault message
96
Function description
Extensions for external connections . . . (cont.)
External extension H2
aVD
External blocking
(terminals 2 - 3)
& External demand
& (terminals 1 - 2)
& External heating program
changeover (terminals 1 - 2)
(only for weather-compensated operation)
& The allocation of the function
"External heating program
changeover" is set via coding
address "91".
aVG KM BUS
&
&
5692 672 GB
The external extension is connected
to the boiler control unit via the KM
BUS. The following functions can be
controlled or processed simultaneously via the extension:
A ON/OFF switch (on site)
sK DHW circulation pump (only for
weather-compensated operation)
fÖ Power supply
97
Function description
Control functions
External heating program changeover
The "External heating program changeover" function is connected via
external extension input "aVD". You
can select which heating circuits the
heating program changeover affects
in coding address "91":
Heating program changeover
Coding
No changeover
91:0
Heating circuit without mixer A1
91:1
Heating circuit with mixer M2
91:2
Heating circuit without mixer and heating circuit with mixer 91:3
You can select in which direction the
heating program changes over in coding address "D5":
Heating program changeover
Changeover towards "Permanently reduced" or "Permanent standby" mode (subject to the selected set value)
Changeover towards "Constant heating mode"
Coding
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
Coding
F2:0
F2:1 to
F2:12
5692 672 GB
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".
98
Function description
Control functions (cont.)
External blocking
The "External blocking" function is
connected via external extension
input "aVD".
In coding address "32" you can select
the influence the "Ext. blocking" signal should have on the connected circulation pumps.
External demand
The "External demand" function is
connected via external extension
input "aVD".
In coding address "34" you can select
the influence the "Ext. demand" signal
should have on the connected circulation pumps.
The minimum set boiler water temperature in case of external demand
is selected in coding address "9b".
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.
For a certain period, the diverter valve
is alternately set towards heating and
DHW heating. The burner is switched
OFF during the venting program.
The venting program is activated via
code "2F:1". The program is automatically disabled after 20 min, and coding address "2F" is set to "0".
Fill program
Afterwards, the diverter valve can be
moved via code "2F:2" into the central
position. In this position, the control
unit can be switched OFF, and the
system can be filled completely.
5692 672 GB
In the delivered condition, the diverter
valve is set to its central position,
enabling the system to be filled completely. After switching ON the control
unit, the diverter valve no longer goes
into its central position.
99
Function description
Control functions (cont.)
Filling with the control unit switched ON
If the system is to be filled with the
control unit switched ON, the diverter
valve will be moved to its central position via code "2F:2" and the pump will
be started.
The burner shuts down if this function
is enabled via coding address "2F".
The program is automatically disabled
after 20 min, and coding address "2F"
is set to "0".
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 at
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:
Heat-up data with respective flow
temperatures
& Max. flow temperature achieved
& Operating condition 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.
&
5692 672 GB
Temperature profile 1: (EN 1264-4) code "F1:1"
100
Function description
Control functions (cont.)
Temperature profile 2: (ZV parquet and flooring technology) code "F1:2"
Temperature profile 3: Code "F1:3"
Temperature profile 4: Code "F1:4"
5692 672 GB
Temperature profile 5: Code "F1:5"
101
Function description
Control functions (cont.)
Temperature profile 6: Code "F1:6"
Temperature profile 7: Code "F1:15"
Raising the reduced room temperature
The outside temperature limits for the
start and end of the temperature raising can be adjusted via coding
addresses "F8" and "F9".
5692 672 GB
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.
102
Function description
Control functions (cont.)
Example using the settings in the delivered condition
A Heating curve for operation with
standard room temperature
B Heating curve for operation with
reduced room temperature
Reducing the heat-up time
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".
5692 672 GB
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.
103
Function description
Control functions (cont.)
Example using the settings in the delivered condition
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
Remote control DIP switches
5692 672 GB
The DIP switches are located on the PCB in the top part of the casing.
104
Function description
Remote control DIP switches (cont.)
Remote control
The remote control affects the heating
circuit without mixer A1
DIP switch setting
The remote control affects the heating
circuit with mixer M2
When connecting a separate room
temperature sensor, set DIP switch "3"
to "ON".
Electronic combustion control unit
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.
5692 672 GB
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 control unit, 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.
105
Function description
Electronic combustion control unit (cont.)
Air factor λ – CO 2 /O 2 content
Air factor λ
O 2 content
CO 2 content
(%)
(%) for natural gas E
1.24
4.4
9.2
1.27
4.9
9.0
1.30
5.3
8.7
1.34
5.7
8.5
1.37
6.1
8.3
1.40
6.5
8.1
1.44
6.9
7.8
CO 2 content
(%) for LPG P
10.9
10.6
10.3
10.0
9.8
9.6
9.3
The combustion control unit can also
be calibrated manually. e.g. after
maintenance or service work (coding
address "85").
5692 672 GB
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 the calibration, higher than
normal CO emissions may occur
briefly.
CO 2 content
(%) for natural gas LL
9.1
8.9
8.6
8.4
8.2
8.0
7.7
106
Designs
5692 672 GB
Connection and wiring diagram – internal connections
A1
X...
§
Main PCB
Electrical interface
Boiler water temperature sensor
$
aA
aG
Outlet temperature sensor
(Gas fired condensing combi
boiler)
Ionisation electrode
Flue gas temperature sensor
107
Designs
Connection and wiring diagram – internal . . . (cont.)
dÖ
a-ÖA Fan motor control
aVL Flow switch
(Gas fired condensing combi
boiler)
a:Ö Modulation coil
5692 672 GB
fJ
gF
a-Ö
Stepper motor for diverter
valve
Temperature limiter
Ignition unit
Fan motor
108
Designs
5692 672 GB
Connection and wiring diagram – external connections
A1
Main PCB
A2
Power supply unit
109
Designs
Connection and wiring diagram – external . . . (cont.)
A3
A4
A5
A6
A7
A8
%
Cylinder temperature sensor
(gas fired condensing boiler)
or
Comfort sensor (gas fired condensing combi boiler)
(plug on the cable harness)
sÖ
Internal circulation pump
dG
Gas solenoid valve
fÖ
Power supply
lH
Power supply accessories and
Vitotrol 100
a-Ö Fan motor
a-ÖA Fan motor control
aYA Gas pressure limiter
aVG KM BUS
5692 672 GB
A9
S1
S2
X...
!
?
Optolink
Burner control unit
Programming unit
Coding card
Connection adaptor
LON communication module
(Vitotronic 200)
Internal extension H1 or H2
ON/OFF switch
Reset button
Electrical interface
Outside temperature sensor
Flow temperature sensor, low
loss header
110
Parts lists
Parts lists
5692 672 GB
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-acting air vent valve
002 Heating water flow connection
pipe
006 Heating water return connection
elbow
007 Heating water flow connection
elbow
009 Safety spring
010 Pump motor
013 Siphon
014 Heat exchanger
015 Entry grommets (set)
017 Condensate hose
018 Condensate hose
019 Boiler flue connection plug
020 Heat exchanger gasket set * 1
021 Plate-type heat exchanger * 1
022 Pressure gauge
023 Flow switch * 1
024 Flow limiter * 1
025 Linear stepper motor
026 Boiler flue connection (with items
019 and 036)
027 Drain valve
030 Thermal insulation block
031 Thermal insulation, plate-type
heat exchanger * 1
033 Gas supply pipe
034 Heating water return connection
pipe
036 Flue gas gasket
037 Diaphragm expansion vessel
038 Connection line for the diaphragm expansion vessel
052 Burner gauze assembly
*1 Only
053
058
059
061
062
063
070
071
072
074
080
081
082
083
084
085
086
087
088
089
090
091
092
093
094
095
106
150
151
152
153
154
200
201
Burner gauze assembly gasket
Burner door gasket
Fan
Gas train
Burner door
Ignition unit
Ionisation electrode gasket
Ignition electrode gasket
Gasket A 17x24x2
Venturi extension
Vitodens control unit
Back cover
Locking clips (10 pcs.)
Support
Flap
Pressure gauge retainer
Clip
Hinge
Coding card
Fuses (10 pcs.)
Programming unit for constant
temperature mode
Programming unit for weathercompensated mode
Internal extension H1
LON communication module
(accessories)
PCB adaptor, LON module
(accessories)
Fuse holder
Access guard
Outside temperature sensor
Flue gas temperature sensor
Temperature limiter
Temperature sensor
Comfort sensor * 1
Front panel (with item 201)
Fixing clip
Wearing parts
050 Burner gasket
051 Insulation ring
for serial no. 7194 475 ... and 7194 477 ...
111
Parts lists
Parts lists (cont.)
054 Ignition electrode block
055 Ionisation electrode
5692 672 GB
Parts not shown
016 Special grease
028 Plug-in connector retainers (set)
041 Plug-in connector gaskets (set)
042 Fixing parts (set)
073 Gas nozzle
096 Mating plug
097 Cable fixing
100 Cable harness X8/X9
101 Fan connecting cable 100
102 Gas solenoid valve connecting
cable 35
103 Power cable, stepper motor
104 Ionisation cable
105 Earth/ignition module cable harness
202 Spray paint, Vitowhite
203 Touch-up paint stick, Vitowhite
300 Installation instructions
301 Service instructions
302 Operating instructions for constant temperature mode
303 Operating instructions for
weather-compensated mode
A Type plate
112
Parts lists
5692 672 GB
Parts lists (cont.)
113
Parts lists
5692 672 GB
Parts lists (cont.)
114
Parts lists
5692 672 GB
Parts lists (cont.)
115
Parts lists
5692 672 GB
Parts lists (cont.)
116
Commissioning/service reports
Commissioning/service reports
Setting and test values
Static pressure
Supply pressure
(flow pressure)
= for natural gas E
= for natural gas LL
= for LPG
Tick gas type
Carbon dioxide content CO 2
& at lower output
&
at upper output
Oxygen content O 2
& at lower output
&
at upper output
Date:
By:
mbar
max. 57.5 mbar
mbar
mbar
mbar
17.4-25 mbar
17.4-25 mbar
42.5-57.5 mbar
Commissioning
Service
% by
vol.
% by
vol.
% by
vol.
% by
vol.
ppm
ppm
5692 672 GB
Carbon monoxide
content CO
& at lower output
& at upper output
Set value
117
Specification
Specification
Rated voltage:
Rated frequency:
Rated current:
Safety class:
Protection:
230 V~
50 Hz
6A
I
IP X 4 D to
EN 60529
Electronic temperature limiter setting:
Temperature limiter
setting:
Line fuse (mains):
82 °C (fixed)
100 °C (fixed)
max. 16 A
Permissible ambient temperature
& during operation:
+2 to +45 °C
& during storage
and transport:
-20 to +65 °C
Gas fired boiler, category II 2N3P
Rated output range
T V/T R 50/30 °C
Rated output range for DHW heating
Gas fired condensing combi boiler
Rated thermal load range
& Gas fired condensing boiler
& Gas fired condensing combi boiler
Connection values
in relation to the max. load
with
Natural gas E
Natural gas LL
LPG
Product ID
kW
4.8 - 19
6.5 - 26
8.8 - 35
kW
–
5.9 - 29.3
7.9 - 35
kW
kW
4.5 - 17.9
–
6.2 - 24.7
6.2 - 30.5
8.3 - 33.0
8.3 - 36.5
m 3 /h
m 3 /h
kg/h
1.89
3.23
2.20
3.75
1.40
2.38
_-0085 BR 0432
3.86
4.49
2.85
5692 672 GB
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.
118
Certificates
Declaration of conformity
Declaration of conformity for the Vitodens 200-W
We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, declare as sole
responsible body, that the product Vitodens 200-W complies with the following
standards:
EN 483
EN 625
EN 677
EN 13 203
EN 50 165
EN 55 014
EN 60 335
EN 61 000-3-2
EN 61 000-3-3
This product is designated _-0085 in accordance with the following directives:
90/396/EEC
92/42/EEC
2004/108/EC
2006/95/EC
This product meets the requirements of the Efficiency Directive (92/42/EEC) for
condensing boilers.
The product characteristics determined as system values for the product
Vitodens 200-W as part of EC type testing according to the Efficiency
Directive (see specification table), can be utilised to assess the energy consumption of heating and ventilation equipment to DIN V 4701–10 which is specified by the EnEV [Germany].
Allendorf, 01.12.06
Viessmann Werke GmbH&Co KG
5692 672 GB
pp. Manfred Sommer
119
Certificates
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, 01.12.06
Viessmann Werke GmbH&Co KG
5692 672 GB
pp. Manfred Sommer
120
Keyword index
Keyword index
A
Acknowledging a fault display . . . . . . . 68
B
Boiler water temperature sensor . . .
Boosting DHW heating . . . . . . . . . . . . . . . . .
Brief scans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Burner gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Burner gauze assembly . . . . . . . . . . . . . . . .
Burner installation . . . . . . . . . . . . . . . . . . . . . . . .
Burner removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .
80
93
60
19
19
20
17
C
Calling up fault messages . . . . . . . . . . . . . 69
Code 1
& calling up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Code 2
& calling up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Codes, resetting . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Coding during commissioning . . . . . . . 25
Combustion chamber cleaning . . . . . . 20
Combustion controller . . . . . . . . . . . . . . . . . 105
Comfort sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Commissioning/service report . . . . . . 117
Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . 22
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90, 91
Cylinder temperature sensor . . . . . . . . . 80
5692 672 GB
D
Date setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Declaration of conformity . . . . . . . . . . . . . 119
Delivered condition . . . . . . . . . . . . . . . . . . . . . . 58
Diaphragm expansion vessel . . . . . . . . . . 7
Display elements . . . . . . . . . . . . . . . . . . . . 90, 91
E
Electronic combustion controller . . 105
Extension kit for heating circuit with
mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Extension
& external H1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
& external H2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
& internal H1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
& internal H2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
External blocking . . . . . . . . . . . . . . . . . . . . . . . . . 99
External demand. . . . . . . . . . . . . . . . . . . . . . . . . . 99
F
Fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Fault display layout . . . . . . . . . . . . . . . . . . . . . . 67
Fault history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Fault manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Fill function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Fill water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Filling the system . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Flow limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Flue gas temperature sensor . . . . . . . . 85
Function descriptions . . . . . . . . . . . . . . . . . . . 90
Functions testing . . . . . . . . . . . . . . . . . . . . . . . . . 63
Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
G
Gas supply pressure . . . . . . . . . . . . . . . . . . . .
Gas train . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas type conversion . . . . . . . . . . . . . . . . . . . .
15
14
11
12
H
Heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Heating curve level . . . . . . . . . . . . . . . . . . . . . . 30
Heating curve slope . . . . . . . . . . . . . . . . . . . . . 30
Heating program changeover . . . . . . . . 98
Heating surfaces, cleaning . . . . . . . . . . . 20
Heat-up time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Hiding a fault display . . . . . . . . . . . . . . . . . . . . 68
121
Keyword index
Keyword index (cont.)
I
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Ignition electrodes . . . . . . . . . . . . . . . . . . . . . . . 20
Ionisation electrode. . . . . . . . . . . . . . . . . . . . . . 20
L
Language selection . . . . . . . . . . . . . . . . . . . . . .
LON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LON communication module . . . . . . . . .
LON
& Fault monitoring . . . . . . . . . . . . . . . . . . . . . . . .
& Setting subscriber number . . . . . . . . .
& Updating subscriber list . . . . . . . . . . . . .
10
32
32
33
32
33
M
Manufacturer's certificate . . . . . . . . . . . . 120
O
Outlet temperature sensor . . . . . . . . . . . . 82
Outside temperature sensor . . . . . . . . . 79
P
Parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Plate-type heat exchanger . . . . . . . . . . . . 84
T
Temperature limiter . . . . . . . . . . . . . . . . . . . . . . 86
Temperature scans . . . . . . . . . . . . . . . . . . . . . . 60
Testing outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Tightness test, balanced flue system .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Time setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
V
Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Venting program . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Vitocom 300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Vitotronic 200-H . . . . . . . . . . . . . . . . . . . . . . 32, 89
W
Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
5692 672 GB
R
Reduced room temperature . . . . . . . . . . 31
Reduced room temperature raising . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Reducing the heat-up output . . . . . . . . 102
Reducing the heat-up time . . . . . . . . . . . 103
Relay test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Room temperature adjustment . . . . . . 31
Rotational direction of mixer motor
& changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
& checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
S
Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Scanning operating conditions . . . . . . 65
Scanning sensors . . . . . . . . . . . . . . . . . . . . . . . . 65
Screed drying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Screed drying function . . . . . . . . . . . . . . . . 100
Service level overview . . . . . . . . . . . . . . . . . . 59
Service
& acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
& reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Setting the output. . . . . . . . . . . . . . . . . . . . . . . . . 16
Siphon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9, 22
Small softening system . . . . . . . . . . . . . . . . . . 7
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Standard room temperature . . . . . . . . . . 31
Static pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Supply pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . 14
System designs . . . . . . . . . . . . . . . . . 25, 36, 37
System pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
122
123
5692 672 GB
Viessmann Werke GmbH&Co KG
D-35107 Allendorf
Telephone: +49 6452 70-0
Fax: +49 6452 70-2780
www.viessmann.com
124
Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: +44 1952 675000
Fax: +44 1952 675040
E-mail: [email protected]
chlorine-free bleached paper
Printed on environmentally friendly,
Gas fired condensing combi boiler
Type WB2B
6.5 to 26.0 kW
from serial no.
7194 475 7 00001 ...
8.8 to 35.0 kW
from serial no.
7194 477 7 00001 ...
5692 672 GB
Gas fired condensing boiler
Type WB2B
4.8 to 19.0 kW
from serial no.
7194 473 7 00001 ...
6.5 to 26.0 kW
from serial no.
7194 474 7 00001 ...
8.8 to 35.0 kW
from serial no.
7194 476 7 00001 ...
Subject to technical modifications.
Applicability