Viessmann VITOTRANS 353 User manual

Operating instructions
for the system user
VIESMANN
High performance wood gasification boiler
for split logs up to 50 cm long
VITOLIGNO 200-S
5777 986 GB 7/2014 Please keep safe.

2
Please follow these safety instructions closely to
prevent accidents and material losses.
Safety instructions explained
Danger
This symbol warns against the risk of injury.
!Please note
This symbol warns against the risk of material
losses and environmental pollution.
Note
Details identified by the word "Note" contain additional
information.
Target group
These operating instructions are designed for heating
system users.
This appliance can also be operated by children of 8
years and older, as well as by individuals with reduced
physical, sensory or mental faculties or those lacking
in experience and knowledge, provided such individu-
als are being supervised or have been instructed in the
safe use of this appliance as well as in any risks aris-
ing from it.
!Please note
Supervise children in the proximity of the appli-
ance.
■Never permit children to play with the appli-
ance.
■Cleaning and maintenance must not be car-
ried out by unsupervised children.
Appliance connection
■The appliance may only be connected and commis-
sioned by authorised contractors.
■Only operate the appliance with suitable fuels.
■Observe the specified electrical connection require-
ments.
■Modifications to the existing installation may only be
carried out by authorised contractors.
Danger
Incorrectly executed work on the heating system
can lead to life threatening accidents.
Work on electrical equipment must only be car-
ried out by a qualified electrician.
Work on the appliance
■All settings and work on the appliance must be car-
ried out as specified in these operating instructions.
Further work on the appliance may only be carried
out by authorised contractors.
■Never change or remove attachments or fitted
accessories.
■Never open or retighten pipe connections.
Danger
Hot surfaces can cause burns.
Never touch the hot surfaces inside the appli-
ance or those of uninsulated pipes, fittings or
flue pipes.
If you smell flue gas
Danger
Flue gas can lead to life threatening poisoning.
■Shut down the heating system.
■Ventilate the installation site.
■Close all doors in the living space.
In case of fire
Danger
Fire presents a risk of burns and explosion.
■Shut down the heating system.
■Use a tested fire extinguisher, class ABC.
What to do if the heating system develops a fault
Danger
Fault messages indicate faults in the heating
system. If faults are not rectified, they can have
life threatening consequences.
Do not acknowledge fault messages several
times in quick succession. Inform your heating
contractor so the cause can be analysed and
the fault rectified.
Conditions for siting
Danger
Sealed vents result in a lack of combustion air.
This leads to incomplete combustion and the
formation of life threatening carbon monoxide.
Never cover or close existing vents.
Do not make any subsequent modifications to
the building characteristics that could affect safe
operation (e.g. cable/pipework routing, cladding
or partitions).
Safety instructions
For your safety
5777 986 GB

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Danger
Easily flammable liquids and materials (e.g.
naphtha, solvents, cleaning agents, paints or
paper) can cause deflagration and fire.
Never store or use such materials in the installa-
tion room or in direct proximity to the heating
system.
!Please note
Incorrect ambient conditions can lead to heating
system damage and can put safe operation at
risk.
■Ensure ambient temperatures are above 0 °C
and below 35 °C.
■Prevent air contamination by halogenated
hydrocarbons (e.g. as contained in paints, sol-
vents or cleaning fluids) and excessive dust
(e.g. through grinding/polishing work).
■Avoid continuously high humidity levels (e.g.
through continuous drying of washing).
Extractors
The operation of appliances that extract air to the out-
side (cooker hoods, extractors, air conditioning units,
etc.) can create vacuum pressure. If the boiler is oper-
ated at the same time, this can lead to reverse flow of
the flue gas.
Danger
The simultaneous operation of the boiler and
appliances that extract air to the outside can
result in life threatening poisoning due to
reverse flow of the flue gas.
Take suitable steps to ensure an adequate sup-
ply of combustion air. If necessary, contact your
heating contractor.
Auxiliary components, spare and wearing parts
!Please note
Components not tested with the heating system
may damage the system or affect its function.
Have all installation or replacement work carried
out exclusively by qualified contractors.
Safety instructions
For your safety (cont.)
5777 986 GB

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1. Introductory information Intended use .......................................................................................... 6
Commissioning ...................................................................................... 6
Your system is preset at the factory ....................................................... 6
Terminology ........................................................................................... 7
Energy saving tips ................................................................................. 7
2. Where to find the controls Boiler controls and components ............................................................ 8
Control unit controls and display elements ............................................ 9
3. Boiler operation Heat-up preparations ............................................................................. 10
Fuel ........................................................................................................ 10
■Wood moisture .................................................................................... 10
■Storing wood ....................................................................................... 10
■Ideal log dimensions ........................................................................... 11
Heating up manually .............................................................................. 11
■Opening the hopper door and actuating the cleaning lever ................ 12
■Charging with fuel ............................................................................... 12
■Starting burnout .................................................................................. 13
Heating up with electric ignition ............................................................. 14
■Opening the hopper door and actuating the cleaning lever ................ 14
■Setting the enable times for electric ignition ....................................... 15
■Charging with fuel ............................................................................... 15
■Starting burnout .................................................................................. 16
Recharging fuel ...................................................................................... 16
Measures to be carried out in the event of the boiler overheating ......... 17
■Boiler water temperature has reached 95 °C ..................................... 17
■High limit safety cut-out ...................................................................... 18
Measures for reducing tar deposits ....................................................... 18
4. Control unit operation Navigation in the control unit menu ....................................................... 20
■Boiler operating phases ...................................................................... 20
Menu structure of the control unit .......................................................... 21
5. Setting automatic ignition Setting enable times for the ignition system .......................................... 23
■To change the enable times: ............................................................... 23
6. Central heating Required settings ................................................................................... 24
Selecting a heating circuit ...................................................................... 24
Setting the room temperature ................................................................ 24
Setting the operating program ............................................................... 25
Setting a time program .......................................................................... 25
Changing the heating curve ................................................................... 27
Stopping central heating ........................................................................ 29
7. Comfort and energy sav-
ing functions
Selecting party mode ............................................................................. 30
Selecting economy mode ...................................................................... 30
Selecting the holiday program ............................................................... 31
8. DHW heating Required settings ................................................................................... 33
Setting the DHW temperature ................................................................ 33
Setting the operating program ............................................................... 33
Setting the time program ....................................................................... 33
Stopping DHW heating .......................................................................... 35
9. Further adjustments Setting the display contrast .................................................................... 36
Setting the brightness of the display backlighting .................................. 36
Naming heating circuits ......................................................................... 36
Setting the time and date ....................................................................... 37
Language selection ................................................................................ 37
Setting the temperature unit (°C/°F) ...................................................... 37
Index
Index
5777 986 GB

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Changing the boiler water temperature ................................................. 37
Changing the set value of residual oxygen content ............................... 38
Restoring the factory settings ................................................................ 38
10. Checks Calling up fault messages ...................................................................... 39
Scanning information ............................................................................. 39
■Scan temperatures ............................................................................. 40
11. Shutdown Shutting down the heating system for an extended period .................... 42
Shutdown ............................................................................................... 42
12. What to do if... Rooms are too cold ................................................................................ 43
Rooms are too hot ................................................................................. 43
There is no hot water ............................................................................. 44
The DHW is too hot ............................................................................... 44
"Fault" is shown in the display ............................................................... 44
13. Maintenance and cleaning Cleaning ................................................................................................. 45
■Care, inspection and maintenance ..................................................... 45
■Information on cleaning ...................................................................... 45
■Cleaning intervals (overview) ............................................................. 45
Ash chamber and combustion chamber ................................................ 46
Clean the hopper ................................................................................... 47
14. Appendix Terminology ........................................................................................... 48
Dismantling and disposal ....................................................................... 49
■Dismantling ......................................................................................... 49
■Disposal .............................................................................................. 49
15. General energy saving tips ................................................................................................................ 50
16. Keyword index ................................................................................................................ 51
Index
Index (cont.)
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The appliance is only intended to be installed and
operated in sealed unvented heating systems that
comply with EN 12828, with due attention paid to the
associated installation, service and operating instruc-
tions. It is only designed for the heating of heating
water that is of potable water quality.
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Commercial or industrial usage for a purpose other
than heating the building or DHW shall be deemed
inappropriate.
Any usage beyond this must be approved by the man-
ufacturer in each individual case.
Incorrect usage or operation of the appliance (e.g. the
appliance being operated for longer periods when
open) is prohibited and will result in an exclusion of lia-
bility. Incorrect usage also occurs if the components in
the heating system are modified from their intended
use (e.g. if the flue gas and ventilation air paths are
sealed) or if other fuels than those intended for this
appliance are used.
Commissioning
Commissioning and adjusting the control unit to local
conditions and the structural characteristics of the
building must be carried out by your heating contractor.
Service instructions
As the user of new combustion equipment, you may be
obliged to notify your local flue gas inspector of the
installation [check local regulations]. Your local flue gas
inspector [where applicable] will also provide you with
information on additional activities concerning your
combustion equipment (such as regular testing, clean-
ing, etc.).
Prepare and carry out the emissions tests according to
the 1st BImSchV:
Service instructions
Your system is preset at the factory
Your boiler's control unit is set at the factory.
■The heating circuits are set to the "Heating" operat-
ing program.
■The domestic hot water heating is set to the "DHW"
operating program.
Your heating system is therefore ready for operation:
Central heating
■From 06:00 to 22:00 h your rooms are heated to
22 °C "Set room temp" (standard heating mode).
■From 22:00 to 06:00 h, your rooms will be heated to
"Set red room temp" (room temperature for
reduced heating mode, night setback).
■Your heating contractor can make further settings for
you during commissioning.
You can change any settings at any time to suit your
individual requirements (see from page 24).
DHW heating
■The DHW is heated to 60 °C "Set DHW tempera-
ture" every day from 00:00 to 24:00 h.
■Your heating contractor can make further settings for
you during commissioning.
You can change any settings at any time to suit your
individual requirements (see from page 33).
Frost protection
■Your boiler, DHW cylinder and heating water buffer
cylinder are protected against frost.
Wintertime/summertime changeover
■This changeover is automatic. Automatic changeover
can be switched off.
Time and date
■The day and time were set by your heating contrac-
tor during commissioning.
Introductory information
Intended use
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Power failure
■All data is retained if there is a power failure.
Terminology
The appendix contains a chapter entitled "Terminol-
ogy" to provide you with a better understanding of the
functions of your boiler.
Energy saving tips
Use the adjustment options offered by your boiler con-
trol unit:
■For central heating, select the operating program
that meets your current requirements:
–For short periods of absence (a few hours, such as
shopping trips), select "Economy mode" (see
page 30).
The room temperature is reduced for as long as
economy mode is active.
–If you are going away, set the "Holiday program"
(see page 31).
The operating program for central heating is auto-
matically set to "Standby mode" while the holiday
program is active.
–If you do not want to heat the rooms and you do
not require DHW for an extended period, set the
"Standby mode" operating program for the rele-
vant heating circuits and for DHW.
–See page 29 for the relevant heating circuits
–See page 35 for DHW heating
■Never set the DHW cylinder temperature excessively
high (see page 33).
Contact your heating contractor for additional energy
saving functions offered by your boiler control unit.
For general recommendations on energy savings, see
page 50.
Introductory information
Your system is preset at the factory (cont.)
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A
B
C
D
E
F
Fig. 1
AProgramming unit of the control unit
BHopper door
CCleaning lever
DIgnition door
EAsh door
FReset button for high limit safety cut-out behind the
cover
For boiler operation, see from page 10.
Where to find the controls
Boiler controls and components
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The programming unit
You can adjust all control unit settings centrally at the
programming unit.
Cylinder
Heating
DHW
Boiler
Accum. extraction
Select with (
Fig. 2
Takes you to the previous step in the menu or can-
cels a setting that has been started.
Cursor keys
Scrolls through the menu or adjusts values.
dTo confirm your selection or save the setting
you’ve made.
Calls up the help text relevant to the selected
menu point.
Calls up the extended menu.
For operating the control unit, see from page 20.
Where to find the controls
Control unit controls and display elements
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Fig. 3
1. Check the heating system pressure at pressure
gauge A:
The system pressure is too low if the indicator
points to the area below the red field. In this case,
top up with water or notify your heating contractor.
Minimum system pressure: 1.0 bar (0.1 MPa).
2. Check that the vents in the installation room are
unrestricted.
Note
With open flue operation, the combustion air is
drawn from the installation room.
3. Verify that the heating system or the heating water
buffer cylinder is drawing off heat. Open the ther-
mostatic valves on the radiators if necessary.
4. Check that the heating system has been vented.
5. Ensure that all shut-off gate valves to the heating
flow and return are open.
6. Check that all doors and covers on the boiler are
closed.
7. Ensure that all ball valves for the return tempera-
ture raising facility are open.
8. Ensure that power is supplied to the boiler.
Fuel
!Please note
Incorrect operating materials result in damage to
the appliance and increased emissions.
Only operate the boiler with logs. Do not heat
with sawdust, fines (wood or coal), coke, bri-
quettes, etc.
This boiler is only suitable for the combustion of natu-
ral logs. To achieve optimum combustion, use split
logs if at all possible.
Wood moisture
The rated boiler heating output can only be achieved
with dry wood with a maximum moisture content of
between 15 and 20 % (net calorific value > 4 kWh/kg).
A higher wood moisture content reduces the net calo-
rific value and consequently output as well. Further-
more, wood that is too damp leads to increased tar
deposits in the hopper.
Storing wood
■Split round timbers that have a diameter of 10 cm or
more.
■Stack the logs in a ventilated and preferably sunny
spot underneath a rain canopy.
■Stack the logs with generous air gaps to allow the
flowing air to absorb the dissipating moisture.
■A hollow should be created underneath the wood
pile, e.g. in the form of support timbers, to allow
moist air to escape downwards.
Boiler operation
Heat-up preparations
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■Never store freshly cut wood in a cellar, as air and
sunshine are required for drying. However, dried
wood can be stored in a well ventilated cellar.
■Storage over one summer results in a moisture con-
tent of approx. 40 %. Wood must be stored for sev-
eral years to achieve approx. 20 % moisture content.
Ideal log dimensions
≤ 5 cm
≤ 10 cm
10-12 cm
≤ 20 cm
≤ 7 cm
8-10 cm
Fig. 4
■Split log length 45 to 50 cm.
■Shorter logs must be layered without air gaps in the
boiler hopper.
■25 cm logs can be inserted in line one after another.
Note
Differing log dimensions can only be layered with
gaps. Gaps reduce the boiler output and increase the
risk of ineffective gasification.
Heating up manually
Before heating up: Check that all required conditions
have been met. (see chapter "Heat-up preparations"
from page 10.
Boiler operation
Fuel (cont.)
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Opening the hopper door and actuating the cleaning lever
A
B
Fig. 5
1. Open hopper door A up to the lock. Actuate the
door release behind the door handle to unlock the
door.
Danger
Risk of burns! Deflagration may occur if the
boiler door of a hot boiler is opened too
abruptly.
Open the boiler door up to the lock. Only
unlock the door release after 5 seconds.
2. Lift cleaning lever B. Move it vigorously forwards
and backwards several times (as far as it will go).
3. Push raised cleaning lever B backwards as far as
it will go and then lower it.
Charging with fuel
A
Fig. 6
1. Remove the ash from the hopper through the igni-
tion door until a 2 cm layer A remains.
Note
The protective ash layer minimises crack formation
in the ceramic parts of the hopper.
Boiler operation
Heating up manually (cont.)
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A
B
D
E
F
C
Fig. 7
2. Create a layer of thin split logs B.
3. Fill the hopper up to primary air vents C with soft
wood chippings D.
4. Fill the hopper up to the upper edge of the ignition
door with crumpled paper E.
5. Fill the hopper with a layer of thin split logs and
then with thick logs F. Layer the logs in line.
Note
Charge with fuel according to the prevailing heat
demand.
■Fill the hopper completely if the outside tempera-
ture is low and the heating water buffer cylinder
is cold.
■In spring and autumn, only charge with enough
fuel to meet the actual heat demand.
Starting burnout
A
B
C
D
Fig. 8
1. Close hopper door A.2. Press "START" button C on the programming
unit.
Boiler operation
Heating up manually (cont.)
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3. Open the ignition door and the firebed cover D.
4. Ignite the paper across the entire width of the hop-
per. Close firebed cover D.
5. Close ignition door B as soon as the softwood
chippings have ignited.
Note
Keep all doors closed securely during burnout to
ensure optimum burnout.
Heating up with electric ignition
Note
This chapter only applies to your boiler if it is equipped
with an electric ignition system (accessories).
Before heating up: Check that all required conditions
have been met. (see chapter "Heat-up preparations"
from page 10.
Opening the hopper door and actuating the cleaning lever
A
B
Fig. 9
Boiler operation
Heating up manually (cont.)
5777 986 GB

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1. Open hopper door A up to the lock. Actuate the
door release behind the door handle to unlock the
door.
Danger
Risk of burns! Deflagration may occur if the
boiler door of a hot boiler is opened too
abruptly.
Open the boiler door up to the lock. Only
unlock the door release after 5 seconds.
2. Lift cleaning lever B. Move it vigorously forwards
and backwards several times (as far as it will go).
3. Push raised cleaning lever B backwards as far as
it will go and then lower it.
Setting the enable times for electric ignition
See page 23.
Charging with fuel
A
Fig. 10
1. Remove the ash from the hopper through the igni-
tion door until a 2 cm layer A remains.
Note
The protective ash layer minimises crack formation
in the ceramic parts of the hopper.
A
B
C
D
E
F
Fig. 11
2. Create a layer of thin split logs B.
3. Fill the hopper up to the inlet opening of electric
ignition C with softwood chippings D.
4. Fill the hopper up to the upper edge of the ignition
door with crumpled paper E.
5. Fill the hopper with a layer of thin split logs and
then with thick logs F. Layer the logs in line.
Note
Charge with fuel according to the prevailing heat
demand.
■Fill the hopper completely if the outside tempera-
ture is low and the heating water buffer cylinder
is cold.
■In spring and autumn, only charge with enough
fuel to meet the actual heat demand.
Note
Ensure that only easily flammable materials (shav-
ings, paper) are situated around the inlet opening
of electric ignition C, even after charging.
Boiler operation
Heating up with electric ignition (cont.)
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Starting burnout
A
B
C
D
Fig. 12
1. Close hopper door A and ignition door B.
2. Press "START" button C on the programming
unit.
3. Use |/~ to select "Immediately", "Automatic"
or "Holiday program".
4. Press d to confirm.
Note
If you make no selection after pressing the "START"
button, "Automatic" is set on the display.
The boiler is ignited by the ignition system in accord-
ance with the setting on the programming unit:
■Immediately
■When there is a heat demand
■Within the selected enable times. See "Setting the
enable times" on page 23.
■On the selected return date in the holiday program.
See "Setting the holiday program" on page 31.
Note
Keep all doors closed securely during burnout to
ensure optimum burnout.
The electric ignition will not start if the door is open.
Recharging fuel
A full hopper charge will provide a combustion period
of 3 to 5 hours, depending on the amount of heat being
drawn off and the quality of the fuel.
Only recharge the boiler with logs in the following
cases:
■If the heating water buffer cylinder is no longer being
heated, i.e. the buffer cylinder temperature has fallen
below the set flow temperature of the heating system
(for checking temperatures, see page 40).
■If there are no more logs left in the boiler, only
embers.
Boiler operation
Heating up with electric ignition (cont.)
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Note
To check for burnout, you can carefully open the igni-
tion door briefly.
Danger
Risk of burns! Deflagration may occur if the
boiler door of a hot boiler is opened too abruptly.
Open the boiler door up to the lock. Only unlock
the door release after 5 seconds.
If there are still sufficient embers in the boiler, con-
tinue as follows with burnout:
1. Initially open hopper door A up to the lock.
2. Wait for approx. 5 s.
This gives low temperature carbonisation gas time
to be drawn out of the hopper.
3. Open the hopper door completely.
4. Press the "START" button on the programming
unit.
The flue gas fan starts if it has already stopped.
5. Recharge with logs in accordance with the heat
demand.
Measures to be carried out in the event of the boiler overheating
Your boiler is protected from overheating by safety
equipment.
Components:
■High limit safety cut-out
■Thermally activated safety valve
Note
Never make adjustments at the high limit safety cut-out
or thermally activated safety valve, which would result
in an exclusion of liability.
Replace faulty components only with genuine spare
parts from Viessmann.
Note
Notify your heating contractor if the boiler overheats
again after a short time or overheats regularly.
Boiler water temperature has reached 95 °C
Thermally activated safety valve
The thermally activated safety valve is installed by
your heating contractor. It is connected to your boiler's
integrated safety heat exchanger, which is located on
the back of the boiler.
Note
Observe the instructions in the manufacturer's docu-
mentation of the thermally activated safety valve.
The boiler must be equipped with a thermally activated
safety valve.
Manufacturer's documentation for thermally acti-
vated safety valve
Note
A contractor (flue gas inspector) must check the ther-
mally activated safety valve regularly for tightness.
Triggering the function:
The thermally activated safety valve responds if the
boiler water temperature exceeds approx. 95 °C.
Cold water flows through the safety heat exchanger.
The boiler is cooled and the heated water is routed to
the drain.
Cancelling the function:
Note
The function is reset automatically once the boiler
water temperature has dropped.
Manufacturer's documentation for thermally acti-
vated safety valve
Boiler operation
Recharging fuel (cont.)
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High limit safety cut-out
The high limit safety cut-out is part of the boiler. It is
located behind the programming unit under the front
top panel.
Note
Any high limit safety cut-out response requires a man-
ual reset.
Triggering the function:
The high limit safety cut-out will respond if the boiler
water temperature exceeds 95 °C.
The fan on the boiler is shut down and the air dampers
are closed. This reduces boiler output and lowers the
flow temperature. Boiler overheating is prevented.
Cancelling the function:
Note
The high limit safety cut-out can only be reset
(unlocked) once the boiler water temperature has
reached approx. 70 °C.
!Please note
If this function is not reset (unlocked), it inhibits
the safety equipment function and can result in
system damage.
Always carry out the following steps.
A
Fig. 13
1. Slide the cover on the programming unit to the
right.
2. Press green button A on the high limit safety cut-
out. A quiet "click" will be audible. The high limit
safety cut-out has been reset.
3. Close the programming unit cover.
4. Acknowledge the excess temperature on the pro-
gramming unit of the control unit with d.
Note
If the high limit safety cut-out responds several times
within a short period, check the cause. Check whether
the system can absorb any more heat. Notify your
heating contractor.
Measures for reducing tar deposits
Tar deposits in the hopper are caused by condensation
of wood gases on the water-cooled walls. Since the
condensation temperature of the gases is far higher
than the achievable boiler water temperature, tar
deposits are unavoidable. The deposits do not impair
the function of the boiler. Only remove the dry and flak-
ing deposits before heat-up (see page 47).
You can reduce tar deposits by taking the following
steps:
■Only use dry fuel: stored for at least 2 years, max.
15 % - 20 % moisture content (see page 10).
■Heat with as high a boiler water temperature as pos-
sible.
■Maintain a min. return temperature of 65 °C.
■Recharge or heat up according to demand. Longer
partial load operation increases tar deposits. For
recharging, see page 16.
Boiler operation
Measures to be carried out in the event of the… (cont.)
5777 986 GB

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Note
These steps reduce tar deposits in the hopper, but
they do not prevent them.
Boiler operation
Measures for reducing tar deposits (cont.)
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Buffer
Heating
DHW
Boiler
Buffer drawing
Select with (
B
A
Fig. 14
ABoiler operating phase display
BDialogue line
The selected menu point is highlighted in white. Dialogue line B provides the necessary instructions.
Boiler operating phases
The following operating phases are shown in line A.
After heat up, they are run through in sequence:
Operating phases:
■Heat up
■Load operation
■Residual heat utilisation
■Buffer drawing
Heat up
After charging and igniting the fuel, the boiler starts up.
Load operation
The boiler enters control mode in this phase. For this,
the air dampers are constantly regulated to the respec-
tive set value.
The fuel in the boiler is completely combusted. At the
same time, the generated heat is transferred to the
heating circuits and the heating water buffer cylinder.
Residual heat utilisation
After fuel burnout, the boiler is still warm. During this
phase, the residual heat of the boiler water is used to
supply the heating circuits and for DHW heating. When
the temperature of the boiler water is no longer suffi-
cient for this, the required heat is drawn from the heat-
ing water buffer cylinder.
Buffer drawing
The heat for the heating circuits and DHW heating
comes exclusively from the heating water buffer cylin-
der.
Control unit operation
Navigation in the control unit menu
5777 986 GB