Nibe VEDEX 3300 User manual

06.10.2016
24179
INSTALLATION AND MAINTENANCE INSTRUC-
TIONS
VEDEX 3300
LEK
INSTALLATION AND MAINTENANCE
INSTRUCTIONS
VEDEX 3300

1VEDEX 3300
For Home Owners
System diagram____________________________________ 3
Area of use _______________________________________ 3
Product description ________________________________ 3
Hot water heating __________________________________ 3
Abbreviations _____________________________________ 3
Heating __________________________________________ 3
Settings, instructions and maintenance
Charge and circulation pump _________________________ 5
Sweeping _________________________________________ 5
Sweeping description _______________________________ 5
General instructions ________________________________ 6
Primary air control _________________________________ 6
Boiler default settings _______________________________ 6
Wood ring
Lighting instructions________________________________ 7
Adding wood______________________________________ 7
Readjustment _____________________________________ 7
For the Installer
General information for the installer
Boiler room _______________________________________ 8
Chimney _________________________________________ 8
Assembly _________________________________________ 8
Turbulators _______________________________________ 8
Installing ceramics _________________________________ 9
Pre-installed ceramic kit _____________________________ 9
Ceramic grate _____________________________________ 9
Flame trough______________________________________ 9
Pipe installation
Connection ______________________________________ 10
Flue gas thermometer ______________________________ 10
Filling __________________________________________ 10
Draining ________________________________________ 10
Cooling coil______________________________________ 10
Environmentally friendly approved ___________________ 10
Docking to the accumulator
Abbreviations ____________________________________ 11
Dockings _______________________________________ 11
Contents
Electrical installation
Connection ______________________________________ 13
Wiring diagram___________________________________ 14
Service
Sweeping description ______________________________ 15
Fan 15
Cover plate ______________________________________ 16
Other information
Troubleshooting __________________________________ 17
Technical specications/Technical specications
Component location, boiler section ___________________ 18
Component location, front panel _____________________ 18
List of components ________________________________ 19
Dimensions ______________________________________ 20
Measuring principle _______________________________ 20
Enclosed kit______________________________________ 21
Accessories ______________________________________ 21
Technical data/Technical specications ________________ 22
Declaration of conformity___________________________ 23

2 VEDEX 3300
For Home Owners
General
ank you for relying on NIBE to supply your boiler and congratulations on choosing VEDEX 3300, a high quality wood boiler with a
long service life, developed and manufactured in Sweden for Swedish conditions.
In order to get the ultimate benet from VEDEX 3300 you should read through these Installation and Maintenance Instructions. e
numbers in brackets refer to the section “Component locations”.
e boiler is designed for houses with water borne heating and is environmentally approved for accumulator tank ring.
is appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge
about the appliance, unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety. Children
should be supervised to ensure that they do not play with the appliance. We reserve the right to make design modications without prior notice. ©NIBE 2012
To be lled in when the product has been installed
e serial number (103), must always be stated in all correspondence with NIBE.
_ _ _ _ _ _ _ _ _ _ _ _ _ _
Installation date:
Installer:
Date:_______ Sign:______________________
IMPORTANT
e VEDEX 3300 must be installed by approved and competent personnel in accordance with the manufacturers instructions and
relevant regulations, standards and by-laws.

3VEDEX 3300
For Home Owners
General
Area of use
NIBE VEDEX 3300 is a boiler intended for heating houses and
other small buildings.
e boiler is environmentally approved for wood ring to the
accumulator tank.
Product description
VEDEX 3300 is a wood-red boiler with an induction ue gas
fan. Max. wood length is 0.5 m. e boiler is designed to be
connected to an external water heater for heating domestic hot
water.
When ring, the boiler water is partly heated by the hearth and
partly by the ue gas ducts.
Average output during wood burning operation is approx.
35kW (max. output is approx. 40kW).
Hot water heating
An accumulator tank with integrated water heater or coil is
needed for hot water heating or alternatively an external water
heater.
e hot water capacity is determined by the choice of water
heater size or the length of coil.
Abbreviations
AV Shut-o valve
AVT Draining valve
BV Non-return valve
CP1 Charge pump
CP2 Circulation pump
ELK Immersion heater
EXP Level vessel/expansion vessel
LV Venting valve
MV Motor valve
RC Control box
SV1 Shunt valve
SV2 Mixer valve
SV4 ermal valve
SÄV Safety valve
TG Temperature sensor
VVB Hot water heater
e outline diagram shows components that are not included
in
standard deliveries.
Heating
Hot water is taken from the top of the boiler and routed to the
accumulators. Return water from the accumulator tanks is led
via a charger pack to the bottom of the boiler. e hot water
is led from the accumulators to the radiator circuit via a shunt
valve (SV1), where the desired temperature to the radiators
is maintained by mixing the hot accumulator water with the
cooled return water from the radiator circuit.
System diagram
EXP AV
LV
SÄV
AV
AVT AV BV
SV4
CP2
SV1
SV2
T
TT
VVB
ACCUACCU
T
ACCU
ELK
RC
AV
AVT AVT AVT
AV
AV
CP1AV
NOTE! is is an outline diagram. Actual installations must be planned according to applicable standards.

4 VEDEX 3300
For Home Owners
General
Indicator lamp for operation
When the green light comes on, the ue gas thermostat’s set
temperature has been reached.
Flue gas thermostat
is thermostat starts and stops fans and any charge pumps
during lighting and extinguishing phases. e thermostat is
delivered connected for charge control by a thermal valve. i.e.
the ue gas thermostat only starts and stops the ue gas fan.
To prevent stationary losses via VEDEX 3300, reconnection
to charge control without thermal valve is recommended. e
ue gas thermostat, together with the charge thermostat, then
starts and stops the charge pump.
Max. thermostat
 is thermostat stops the fan when the boiler temperature
exceeds the set value.
Charge thermostat
 is thermostat starts and stops the charge pump at the set
value.
20 100
40 80
60
0 120
2
1bar 3
04
Indicator lamp for operation Control switch
Flue gas thermostat
Max. thermostat
Charge thermostat Boiler temperature gauge
Boiler pressure gauge
Control switch
Operating current, on and o.
Boiler temperature gauge
 e operating temperature of the boiler is indicated on the
gauge which is graduated 0–120 °C. It shows the boiler water
temperature measured at the height of the ow line connec-
tion.
Boiler pressure gauge
e boiler’s pressure is displayed here. e gauge is graduated
0 - 4 bar with a red mark at 1.5 bar.
Max. permitted pressure is 2.5 bar at 95 °C.
For a closed system, the operating pressure varies during op-
eration depending on the installation’s varying temperature.

5VEDEX 3300
For Home Owners
Settings and maintenance
Sweeping
e Swedish Rescue Services Act species how oen a boiler is
to be swept and at what intervals with regard to the risk of soot
res. Sweeping carried out by a chimney sweep includes all ue
gas routes from the hearth to the top of the chimney.
You can check the boiler’s re-aected surfaces and ue gas
ducts yourself to determine how oen the boiler should be
swept.
Gas, which contains tar substances, builds up in the wood
magazine. ese substances condense on the walls of the wood
magazine and are later burned o. is means that the walls of
the wood magazine do not usually have to be cleaned.
For optimum combustion and eciency the boiler’s secondary
combustion chamber should be cleaned aer about 15 addi-
tions of wood.
e convection part is cleaned by removing the top soot door
(66), pulling up the turbulator and brushing clean. is should
be done a few times between chimney sweep visits.
e compartment is cleaned from the front via the lower door
by pulling out the ame trough and brushing. Take care to re-
move any coked ash residue in the trough.
Also see ”For the chimney sweep”, under ”Sweeping” .
Charge and circulation pump
If a charge or circulation pump is not in operation for an ex-
tended period of time, it should be started from time to time
so that it does not jam.
Ash can still contain glowing embers after a long
period of time. Therefore, always use a non-
inflammable container when emptying ash and
soot.
NOTE!
Settings and maintenance
■Open the combustion chamber door (68).
■Pull out the ame trough.
■Empty the trough and clean the ash out. Take care to re-
move any coked ash residue in the trough.
■Clean the chamber.
■Position the trough and close the door.
Sweeping description
■Remove the cover from the top of the boiler.
■Li out the turbulators from the convection part.
■Sweep the convection part.
■Reinstall the turbulators.
■Reinstall the soot door.
LEK

6 VEDEX 3300
For Home Owners
Settings, instructions and maintenance
Höger Vänster
General instructions
e way the wood is chopped, its type and the moisture con-
tent are all determining factors that aect the function and
eciency of the boiler.
Adjust the size of the wood to t the hearth. Suitable length of
chopped wood for VEDEX 3300 is 0.5m.
e wood is placed on the ceramic grate.
e combustion process works by reverse combustion where
the combustion gases are forced down through the grate by an
induction fan. e fan is controlled by the ue gas tempera-
ture. A damper ensures that a self induced draught does not
occur when the fan is o.
e fan works at two speeds which means that the highest
speed occurs when adding wood and normal speed during
operation.
A tilting smoke stop prevents blow back.
Always use dry wood. Wood with a high moisture content
reduces the combustion temperature and causes increased
amounts of environmentally harmful emissions as well as re-
ducing eciency.
Extremely dry wood can cause too large a re which can create
large amounts of gas. In addition, there is a risk of ashover,
which in turn causes irregular combustion. Carpentry o cuts
can be used but should be mixed with other wood. All wood
over 10 cm must be split. Only use untreated and clean wood.
Combustible gases are created as the wood heats up. ese
burn at temperatures between 300 - 900°C. e gases make up
75% of the wood’s energy content, the rest is in the charcoal
created, which also then burns.
Final combustion occurs in the compartment under the grate
aer the supply of secondary air.
Primary air control
e control damper on the front of the boiler is used to distrib-
ute the air supply to the hearth.
■In the le-hand position, the air supply is from the top of
the combustion chamber.
■In the right-hand position, the air supply is from the lower
part just above the ceramic grate in the hearth.
■In the central position the air is distributed equally from
both inlets.
Fluegas thermostat
 is thermostat senses the ue gas temperature.
When the temperature has been reached and the
ller door closed, the fan resumes normal speed.
When ring is ended and the ue gas temperature
has dropped, the fan is stopped by the thermostat.
Max.thermostat
 is thermostat stops the fan when the boiler wa-
ter temperature is too high.
Chargethermostat
 is thermostat starts the charge pump at the set
boiler water temperature.
Before adding the rst pieces of wood, check that
the boiler and the heating system are lled with
water, and that the ue gas thermometer is installed in the ue
pipe. en make settings as follows.
■Set the ue gas thermostat to position:
■Set the max. thermostat to 90 °C.
■Set the charge thermostat to 60 °C.
■Adjust the primary air damper as fol-
lows.
1 Hard and mixed wood
Adjust the damper to the right.
2 Sowood
Adjust the damper to the le.
For a newly installed boiler, new adjustments should be made
if combustion is not ecient and incomplete or if another type
of wood is used. Also see section “Wood ring”.
T
Boiler default settings
e instrument panel contains three thermostats.

7VEDEX 3300
For Home Owners
Wood ring
Lighting instructions
It is important that initial ring is carried out carefully in a
new boiler so that any remaining crystallisation water in the
ceramics is condensed slowly to prevent cracking.
■Add approximately 4 kg of nely chopped kindling wood
and then tightly screwed up newspaper on top. Light the
newspaper and leave the ller door ajar.
■Wait until the wood has caught re properly (ue gas tem-
perature approximately 130 – 150°C) and the green light
comes on.
■Close the door and let the re burn to a bed of embers, ap-
proximately 30 – 45 minutes depending on the amount of
wood.
■Once a bed of embers has been created, more wood can be
added.
■Check that the ue gas temperature rises, this is a sign that
combustion has started.
e boiler is now in normal operating mode.
■Add more wood when a bed of embers remains at the bot-
tom of the hearth.
Adding wood
Add wood via the ller door. When this door is opened, a
microswitch is aected, which, in turn increases the speed of
the fan.
It is important that the amount of fuel is adjusted according
to the temperature levels in the accumulator system so that it
does not become overcharged.
Even out the embers before adding more wood. en close the
ller door. e speed of the fan now slows and normal opera-
tion is resumed.
VEDEX 3300 is designed for 0.5 m long pieces of wood. Stack
the wood well when adding. Place the logs so that they do not
block the grate hole, see an example of positioning in the im-
ages below. If shorter pieces of wood are used, stack these over
the grate hole towards the rear wall.
■When the wood in the boiler has been burned and the ue
gas temperature drops to 80 – 85 °C, and a minimal bed of
embers remains, the green light should go out, if not, read-
just the ue gas thermostat.
It is now set and should not normally need further adjust-
ment. At the next ring procedure, the green light auto-
matically comes on when the ue gas
temperature has reached approximate-
ly 130 – 150 °C.
Readjustment
e ame can be checked through the sight glass aer about 30
minutes operation. e colour of the ame should then be yel-
low with a light blue tint.
e following points should be observed for VEDEX 3300 to
perform optimally:
■Follow the lighting procedure by checking the ue gas
temperature.
■e fan should never stop during the ring cycle.
■When the accumulator is fully charged, there should no
longer be any wood in the wood magazine.
■Never open the combustion chamber door during opera-
tion.
■ e combustion of wood can vary depending on its mois-
ture content and type as well as on the position of the
primary air damper.
If the wood burns as in case
(A), the air supply is too great
from the top and too low
from the middle.
If the wood burns as in case
(B), the air supply is too great
from the middle and too low
from the top.
e correct air ow as per
case (C) gives the most ef-
cient combustion.
It is not necessary to adjust the primary air damper if any
of cases (A) and (B) occur on the odd occasion.
A
B
C
LEKLEK
LEK
LEK
Wood ring

8 VEDEX 3300
For the Installer
Assembly
VEDEX 3300 has inlets for primary air at the front and sec-
ondary air on the sides of the boiler. erefore, always leave a
space of at least a metre from combustible material. In unfa-
vourable cases “pus” from combustion can discharge sparks.
Turbulators
Six turbulators are supplied with the boiler. ese are located
in the ducts in the boiler’s convection part as illustrated. e
turbulators aect the turbulence of the ue gases, which means
that a greater amount of energy is transferred to the boiler wa-
ter. e temperature in certain chimneys may become so low
that there may be a risk of condensation build-up in the smoke
duct. To increase the temperature in the chimney the turbu-
lators can be removed, one at a time as illustrated. For each
turbulator that is removed, the ue gas temperature rises from
the boiler by 15 – 25 °C.
Remove the turbulators in number order until the ue gas
temperature in the chimney is correct.
LEK
General information for the installer
13 4
56
2
66
Boiler room
e boiler room must be built in accordance with applicable
building regulations.
Provision for good air supply. e boiler room’s air intake must
be as large as the ue.
Chimney
VEDEX 3300 has a vertical ue pipe connection with an ex-
ternal diameter of 133mm. A vertical ue pipe is supplied as
standard.
e ue diameter should be 150mm in accordance with the
Building Regulations.
e ue should be dimensioned in accordance with the
Building Regulations and EN 13384-1 to facilitate correct
functioning of the combustion system.
e minimum chimney draught for satisfactory wood ring is
15 Pa.
e ue needs to be inspected and approved before installa-
tion.
If in doubt reference should be made to ‘e Building
Regulations 2000 Approved Document J Combustion
Appliances and Fuel Storage Systems 2010 Edition’ or the
building control department of your local council.
Material Area Minimum height
Steel pipe Ø 150 mm 5.0 m
Brick 150 x 150 mm 5.0 m
Many older boilers have the ue duct located at the bottom
and have been connected to the chimney near to the oor. If
the new boiler is to be connected higher up on the chimney
the lower, non-active, part of the chimney pipe should be lled
with sand or similar.
Carbon Monoxide Detectors
It is mandatory to t a Carbon Monoxide alarm within the
room whenever a new or replacement solid fuel appliance
is installed in a dwelling. is alarm must be a permanently
installed type, rather than a portable type, and should incor-
porate self-test and audible alert if the battery or detector cell
develop a fault. Siting of the alarm must meet the following
criteria:
a) on the ceiling at least 300mm from any wall or, if it is lo-
cated on a wall, as high up as possible (above any doors and
windows) but not within 150mm of the ceiling; and
b) between 1m and 3m horizontally from the appliance.
Ensure that sweeping can be carried out in accord-
ance with the applicable regulations.
If in doubt, contact a chimney sweep.
NOTE!
The flue gas temperature must not drop below
65 °C 0.5 m below chimney opening.
NOTE!
General information for the installer

9VEDEX 3300
For the Installer
General information for the installer
LEK
98
E
C
B
F
D
A
Installing ceramics
Pre-installed ceramic kit Ceramic grate
Place the ceramic inserts in through the ller door. First posi-
tion the front stone (B). en position the rear stones (C) and
(D) followed by stones (E) and (F).
Flame trough
Open the combustion chamber door. Slide in the ame trough
(A) on its guides under the ceramic grate.
NOTE! e trough must be slid all the way into the chamber.

10 VEDEX 3300
For the Installer
Pipe installation
Connection
e pipe installation must be carried out in accordance with
current norms. Internal support bushes should be tted when
a steel pipe or annealed copper pipe is used.
e overow pipe from any of the safety valves must be routed
to a oor drain to prevent hot water splashes when checking
the valves or when bleeding the boiler. e outlet of the over-
ow pipe must be visible.
If the heating installation has an open expansion tank, the
distance between the highest radiator and the expansion tank
must not be less than 2.5 m.
Min 2,5 m
The pipe work must be flushed before the boiler is
connected, so that any contaminants do not dam-
age the component parts.
NOTE!
Flue gas thermometer
VEDEX 3300 is supplied with an enclosed ue gas thermom-
eter which must be installed in the ue gas door outlet.
Filling
Fill the boiler with water using a xed ller line to one of the
expansion connections or a hose in the draining valve.
If filling via the radiator circuit, the shunt valve
must be in a central position. Otherwise there is a
risk of cracking one of the radiators.
WARNING!
!
Draining
e draining valve is installed next to connection (84). Drain
by connecting a hose to the draining valve.
Cooling coil
VEDEX 3300 is supplied with cooling coil (22) for connection
to a temperature limiting valve. Refer to the manufacturer’s
instructions when installing.
Environmentally friendly approved
To meet the environmentally approved requirements during
wood ring an accumulator tank of at least 1000 litres must be
installed with the boiler.
Pipe installation
Min 2.5 m

11VEDEX 3300
For the Installer
Docking to the accumulator
EXP AV
LV
SÄV
AV
AVT AV BV
SV4
CP2
SV1
SV2
T
TT
VVB
ACCUACCU
T
ACCU
ELK
RC
AV
AVT AVT AVT
AV
AV
CP1AV
Docking to several tanks with thermal charge control and open expansion tank
When the boiler’s temperature exceeds the set charge tempera-
ture (for example, 75°C) the charge pump starts, which then
transfers heat from the boiler to the accumulator. e thermal
valve ensures that the water temperature to the bottom of the
boiler does not drop so much that there is a risk of condensa-
tion.
Abbreviations
AV Shut-o valve
AVT Draining valve
BV Non-return valve
CP1 Charge pump
CP2 Circulation pump
ELK Immersion heater
EXP Level vessel/expansion vessel
LV Venting valve
MV Motor valve
RC Control box
SV1 Shunt valve
SV2 Mixer valve
SV4 ermal valve
SÄV Safety valve
TG Temperature sensor
VVB Hot water heater
Docking to the accumulator
NOTE! ese are outline diagrams. Actual installations must be planned according to applicable standards.
Docking to two tanks with thermal charge control and open expansion tank
EXP AV
LV
SÄV
AV
AVT AV BV
SV4
CP2
SV1
SV2
T
TT
VVB
ACCUACCU
ELK
RC
AV
AVT AVT
AV
CP1AV

12 VEDEX 3300
For the Installer
Docking to two tanks with thermal charge control and closed expansion vessel
RC
AVT
LV
AV
AV AV BV
SV4
CP2
SV1
SV2
T
TT
VVB
ACCUACCU
ELK
AV
AVT AVT
AV
CP1AV
SÄV
SÄV
EXP
AV
SV3
TG
When the boiler’s temperature exceeds the set charge tempera-
ture (for example, 75°C) the charge pump starts, which then
transfers heat from the boiler to the accumulator. e thermal
charge control ensures that the water temperature to the bot-
tom of the boiler does not drop so much that there is a risk of
condensation.
e expansion vessel volume must be dimensioned according
to the applicable norms.
Closed expansion vessel and emergency cooling
presupposes there being sufficient cold water sup-
ply in event of, for example, a power cut.
WARNING!
!
In installations with closed expansion vessel a thermal valve to
prevent overheating must be connected from the cold water to
the boiler cooling coil, then to a suitable drain.
Overow water from the safety valve is routed to a drain so that
hot water splashes cannot cause injury. e entire length of the
overow water pipe must be inclined to prevent water pockets
and must also be frost proof.
Docking to the accumulator

13VEDEX 3300
For the Installer
Electrical installation
Electrical installation
If the connection cable is damaged or becomes
otherwise unusable, it must be replaced by the
manufacturer, its service agent or other qualified
person to prevent any danger.
NOTE!
Connection
VEDEX 3300 must be installed via an isolator switch with a
minimum breaking gap of 3 mm or be supplied with a suitable
plug connector.
e boiler must be connected under the supervision of an
authorised electrician. e connection cable for electrical con-
nection is on the reverse of the boiler. ere is a connection
area for electrical connection behind the front panel (33).
e charge pump is powered from the electrical socket on the
reverse of the boiler, max. total current output is 10 A. Min
cable area 1.5 mm2.
Switch (45) set in position ”0” means that the boiler is o.
Position ”1” is the normal operating position.
With thermal valve
e thermostat is supplied connected for charge control with
a thermal valve (laddomat 21 or similar).Connection of the
return line from the accumulator tanks is to the return connec-
tion (84) on the boiler.
e ue gas thermostat (2) starts and stops the ue gas fan.
When the green light comes on, the ue gas thermostat’s set
temperature has been reached and the ue gas fan starts. Max
thermostat (3) stops the ue gas fan when the boiler tempera-
ture exceeds the set value. is is to restrict combustion and
prevents the boiler temperature from getting too high. e
charge thermostat (19) stops the external charge pump when
the boiler temperature exceeds the set value. e automatic
charge control ensures that the risk of condensing does not
occur and manages the transfer of heat from the boiler to the
accumulator tanks.

14 VEDEX 3300
For the Installer
Wiring diagram
Wiring diagram
Blue
Red
70
Black

15VEDEX 3300
Other information
Service
■Open the combustion chamber door (68).
■Pull out the ame trough.
■Empty the trough and clean the ash out. Take care to re-
move any coked ash residue in the trough.
■Clean the chamber.
■Position the trough and close the door.
Fan
e fan is a central part of VEDEX 3300 and should be treated
with care. e fan should be removed and cleaned about twice
a year for optimum function and a long service life.
■Check that the boiler is o and that no embers are in the
combustion chamber.
■Disconnect the fan from the electrical socket on the boiler.
■Remove the long nuts securing the fan to the boiler.
■Clean the fan blades carefully to prevent deforming them.
■Reinstall the fan and connect the electrical cable.
Sweeping description
■Remove the cover from the top of the boiler.
■Li out the turbulators from the convection part.
■Sweep the convection part.
■Reinstall the turbulators.
■Reinstall the soot door.
Service
LEK
E
E

16 VEDEX 3300
Other information
Service
Cover plate
To prevent soot from getting into the ue gas fan when sweeping, use the supplied cover plate as follows:
■Remove the soot door.
■Insert the cover plate over the hole as illustrated.
■Reinstall the soot door to prevent soot exiting when sweeping.
■Do not forget to remove the cover plate when sweeping is complete.
LEK
LEK

17VEDEX 3300
Other information
Fault Cause Correction
Smoke coming out the door - faulty glass cord - replace the sealing cord
- adjust the door hinges
- the nozzle is clogged - do not burn small pieces of wood or saw-
dust
- small chimney draught - fault in the chimney
- the door is not completely closed - close the boiler door
Boilers do not achieve the required
outputs and set water temperature
- lack of water in the heating system - rell
- a high pump output - adjust the pump ow and switching
- the boiler output is not suciently sized for
the water sysytem
- adjust/change the installation
- low-quality fuel - use only dry wood with moisture content
below 20%
- leaking ring-up safety valve - repair
- small chimney draught - a new chimney, check and change connec-
tion
- strong chimney draught - position the throttle into the smoke-ue
(draught limiter)
- bent blades of draw-o ventilator - straighten the blades (to 90° angle)
-long ring-up of the boiler - replace
- insuciently cleaned boiler - clean
- clogged combustion air hole in the burning
chamber
- clean
e ventilator does not rotate - clogged impellor - remove the tar and deposits from the ven-
tilator
- faulty capacitor - replace
- faulty engine - replace
Water inside burning chamber - the wood is too moist - use only dry wood with moisture content
below 20%
- set temperature is too low - increase set temperature of the boiler
- temperature of return water is too low - use safety valve to protect return from too
low temperature
Temperature of the boiler body is high - opened boiler door - close the boiler door
No power - no power - check the power in outlet
- check the plug and cord
Troubleshooting

18 VEDEX 3300
Other information
20 100
40 80
60
0 120
2
1bar 3
04
Component locations
45 4240336 192
Component location, boiler section
Component location, front panel
45
19
342
40
2
36
100
84
18
20
10
95
94
11
68
64
23
97
65
27
97
64
28
83
22
66
96
33
81
82