Logosol WDU User manual

USER MANUAL
LOGOSOL WDU
WOOD DRYING UNIT
EN
Ref. No. 0458-395-0631

LOGOSOL continuously develops its products.
For this reason, we must reserve the right to modify
the conguration and design of our products.
Document: LOGOSOL WDU Wood Drying Unit User Manual
Ref. No. User Manual, English: 0458-395-0631
Text: Mattias Byström
Illustrations: Martin Melin
Last revised: December 2019
© 2019 LOGOSOL, Härnösand Sweden
THANK YOU FOR CHOOSING A LOGOSOL MACHINE!
Read through the user manual carefully
and make sure you understand its
contents before you use the equipment.
This user manual contains important
safety instructions.
WARNING! Incorrect use can result in
serious or fatal injuries to the operator
or others.
Welcome! We are very pleased that you have demonstrated your condence in us by
purchasing this wood drying kiln, and we will do our utmost to meet your expectations.
Logosol has been manufacturing sawmills since 1989. In that time we have supplied
approximately 50,000 machines to satised customers the world over.
We care about your safety as well as we want you to achieve the best possible results with your
wood drying kiln. We therefore recommend that you take the time to carefully read this user
manual from cover to cover in peace and quiet before you begin using the equipment. Remember
that the machine itself is just part of the value of the product. Much of the value is also to be
found in the expertise we pass on to you in the user manuals. It would be a pity if that were not
utilised.
We hope you get a lot of satisfaction from the use of your new equipment.
Bengt-Olov Byström
Founder and Chairman,
Logosol in Härnösand, Sweden
#1

TABLE OF CONTENTS
Safety instructions 4
Machine description 5
Drying chamber 5
Assembly 6
Setting the thermostat 6
Maintenance 7
Components: WDU wood drying unit 8
Technical data / electrical system 10
CE Declaration of conformity 11

4
SAFETY INSTRUCTIONS
For your own safety, do not start the Logosol
WDU wood drying unit without rst having read
and understood all the contents of this user
manual. Do not let persons who have not read
the instructions use the Logosol WDU.
If used incorrectly, the WDU can cause injury
and material damage.
KEY TO SYMBOLS
This symbol means ’WARNING’. Pay particular
attention where this symbol appears in the
manual text.
This symbol is followed by instructions that must
be observed. Pay particular attention where this
symbol appears in the manual text.
WHEN USING THE EQUIPMENT
The drying unit may only be used for drying wood in a
chamber intended for this purpose.
Risk of re.
For maximum electrical safety and re safety, a
residual current circuit breaker should be used.
Ensure that the air in the drying cabinet can
circulate and that the wood is not closer to the
drying unit than 0.3 m.
The drying chamber should be set up such that
the damage that can occur in the event of a re is
minimized. We recommend that you contact your
local re authority for advice if you are unsure.
Risk of water damage.
Condensed water from the drying process can
leak out of the drying chamber. Place the drying
chamber on a surface that can withstand water.
Set up the drying chamber in a place that can
withstand moist air.
During use:
• Never set the thermostat at a higher temperature than
50 degrees C.
• Place the wood drying kiln such that the start / stop
button is not blocked.
• Never step on the power cable of the drying unit. The
cable should be protected against accidental damage.
• The WDU wood drying unit must not be modied or
rebuilt.
• The machine’s warning labels are there for your own
and others’ safety. Damaged or illegible labels must be
replaced.
In this user manual ”cut the power” means
that the cable that supplies power to the drying
unit should be disconnected from the mains
and placed such that no unqualied person
can reconnect it. Wait until the drying unit has
completely cooled.
Cut the power:
• before touching the part of the drying unit that is on
the inside of the drying chamber.
• before opening any of the inspection hatches on the
drying unit.
• before cleaning or other maintenance.
• before moving the drying unit.
Risk of burn injury.
The drying unit has hot heating elements. It
must not be started until it is correctly installed
in a drying chamber, and the drying chamber is
closed. Never put your hands inside the drying
unit if the power cord is not disconnected.
BEFORE CONNECTING THE EQUIPMENT
TO THE MAINS
Check that:
• no loose objects are left inside the drying unit.
• all inspection hatches are correctly tted.
• the power cable is in good condition.
• the labelling of the drying unit matches your electrical
connection.

WDU WOOD DRYING UNIT
5
The Logosol WDU is a drying unit intended for installation
through the wall of a drying chamber and for drying
wood that is clean from sawdust and dirt. The WDU
generates heat and sets the air in the chamber in motion
to reach a uniform drying result and minimize cracking
and movement in the wood. The machine consists of a
centrifugal fan that blows out the air through an electrical
heater, and an air inlet that mixes cold outside air with
the heated air stream. The fan runs continuously while
the WDU is switched on. The heater is controlled by
a thermostat, which measures the temperature of the
circulating air, and is adjusted from the outside of the
drying chamber. The WDU raises the temperature of the
circulating air with approx. 25 degrees C when the heater
is activated. In addition to the thermostat, the WDU has
an overheating protection that turns off the WDU if the
temperature gets too high.
MACHINE DESCRIPTION
The Logosol WDU must be installed in an insulated drying
chamber with a volume of at least 1 m3and max. 4 m3,
and with these minimum dimensions: L: 2 m, W: 0.5 m,
H: 1 m. Install the WDU through the short side of the
chamber.
• The wood that is to be dried must not be placed
closer to the WDU than 0.3 m.
• The wood should have a thickness of at least 10 mm
and be securely stacked in the chamber.
• The drying chamber should be made of a material
that that can withstand at least 80 degrees C.
• It is optional to use the air inlet of the drying unit
(A6), the purpose of which is to increase circulation in
the chamber.
• The drying chamber should always have a
thermometer that can be read from the outside and
that have a temperature sensor on the inside.
• The drying chamber should have a valve to let out
moist air.
THERMOMETER
Use an oven thermometer or the like that can withstand
temperatures above 100 degrees C. Check the thermo-
meter by immersing the sensor in boiling water. The
thermometer should then read approx. 100 degrees C.
The sensor of the thermometer should be placed on the
short side opposite to the WDU in the chamber, and at a
height of 0.5 m above the chamber oor.
DRYING CHAMBER

6
ASSEMBLY
• The WDU must not be installed closer than 10 cm
from the oor, ceiling or walls of the chamber.
• The Logosol WDU must be installed through an
opening that is 250 mm in width and 505 mm in
height, and be mounted level. The unit must be
mounted with the air outlet downwards.
• The air outlet of the drying unit should not be
directed towards the material being dried, but should
blow in the air under the material.
• Check that the external cooling fan of the fan motor
has free space, and that the controls of the electrical
system are easily accessible.
CHECKING THE FUNCTIONING
OF THE FAN
When the WDU is correctly installed in a closed drying
chamber, check that the cooling fan of the fan motor
(B10) rotates in the right direction (clockwise seen from
the back of the motor). If the fan does not start or rotates
in the wrong direction when the WDU is switched on, cut
the power.
CHECKING THE FUNCTIONING
OF THE THERMOSTAT
Cut the power. Place the WDU in a room that is heated
to at least 20 degrees C, and wait until the WDU has
reach the same temperature. Turn the setting knob of the
thermostat (B11) to below 20 degrees C and then turn it
back to above the ambient temperature. You should hear
a distinct click when the setting knob passes the ambient
temperature. If no click is heard, the WDU must not be
started.
ADJUSTING THE THERMOSTAT
The air circulation allows the WDU to dry the wood
quickly and energy-efciently at relatively low
temperatures. Set the thermostat to a maximum of 50
degrees C. The temperature can be lowered if you want
to save energy.
Check the internal temperature of the chamber
during operation. It is normal that the thermometer
shows a lower temperature than the the set value of
the thermostat. If the thermometer shows a higher
temperature than the set value, turn off the WDU and
check the functioning of it.
Read separate drying instructions or use Logosol’s
smartphone application for optimum drying technique.

WDU WOOD DRYING UNIT
7
MAINTENANCE
The parts of the drying unit can be attacked by corrosion.
Some sorts of wood are more corrosive than others. The
fan wheel (A8), the heater and the heater bracket (A9)
are parts that will be worn by corrosion and have to be
replaced after a period of time.
After every fth drying cycle or as needed:
• Cut the power.
• Remove the drying unit from the drying chamber.
• Open the front grille (A4).
• Check that the fan wheel and the heater are not
damaged by corrosion. If that is the case, replace
damaged parts.
• Check that the fan wheel can rotate freely.
• If necessary, clean the heater (A9) and the fan wheel
(A8) with a soft brush, soap and water.
• Make sure all water has dried before reinstalling
the grille (A4) and restoring the WDU to its original
design.
• Check that the motor and its external cooling fan are
clean. Remove any dirt.
• Only use original spareparts, attachments or
accessories that are supplied by Logosol or that are
specically approved by Logosol for the purpose.
After service, the drying unit has to be restored
to its original design. All parts have to be correctly
installed before the drying unit is taken into use.

8
COMPONENTS: WDU WOOD DRYING UNIT
EXPLODED VIEW A
( )
Scale:
Drawn by:
General
tolerances acc. to:
Sheet no. : Issue:
Last save:
Drawing no. :
Material:
A3
ISO E
Detta dokument och dess innehåll tillhör Logosol AB. Innehållet får ej kopieras, reproduceras, överföras eller skickas till tredje part, eller användas för syften som ej skriftligen godkänts.
Weight:
1 32 4 5 6 7 8
A
B
C
D
E
F
ISO 2768-1
medium (-mK)
1:10
2
MM
1 1
15,890
Fiskaregatan 2
871 33 Härnösand
Tel: [phone]
This document and its contents are the exclusive property of Logosol AB and may not be copied, reproduced, transmitted or communicated to a third part, or used for any purpose without written permission.
Reviewed by:
01-00429
2019-12-03 09:22
Heating unit
IronCAD
2D-drawing
3D-file available
Updated underlying parts
New
Issue User
Old
Issue Date Remarks
2MM
125-jan-
2019
-
-
--
-
--
-
-
-
Assembled view (front) Assembled view (back)
Exploded view
SCALE 1 : 7,50
9 01-00442 1 Heater asm. 1
8 04-00266 1 Fan 1 11872
7 04-00297 1 Dekal 1 20089
6 03-02423 1 Insug_förlängning 1
5 03-02424 2 Holder_bracket 1
4 03-02427 1 Top_front 1
3 03-02430 1 Fan_Inlet 1
2 03-02365 2 Side piece, Sauno heater 1
1 01-00443 1 Base asm. 2
Item
no. Art.no. Qty. Description Issu eGarp No.
9
8
6
Caution:
Mind the orientation on
pos 2 (the biggest
distance between hole
and egde should be
facing upwards)
7
1 2
2
3
4
5
N.B.
Note the orientation of
pos. 2 (the longest distance
between hole and edge
should be facing upwards).
1 Base assembly
2 Side piece
3 Air inlet
4 Top / front
5 Bracket
6 Inlet, extension
7 Decal
8 Fan wheel
9 Heater assembly
( )
Scale:
Drawn by:
General
tolerances acc. to:
Sheet no. : Issue:
Last save:
Drawing no. :
Material:
A3
ISO E
Detta dokument och dess innehåll tillhör Logosol AB. Innehållet får ej kopieras, reproduceras, överföras eller skickas till tredje part, eller användas för syften som ej skriftligen godkänts.
Weight:
1 32 4 5 6 7 8
A
B
C
D
E
F
ISO 2768-1
medium (-mK)
1:10
2
MM
1 1
15,890
Fiskaregatan 2
871 33 Härnösand
Tel: [phone]
This document and its contents are the exclusive property of Logosol AB and may not be copied, reproduced, transmitted or communicated to a third part, or used for any purpose without written permission.
Reviewed by:
01-00429
2019-12-03 09:22
Heating unit
IronCAD
2D-drawing
3D-file available
Updated underlying parts
New
Issue User
Old
Issue Date Remarks
2MM
125-jan-
2019
-
-
--
-
--
-
-
-
Assembled view (front)
Assembled view (back)
Exploded view
SCALE 1 : 7,50
9 01-00442 1 Heater asm. 1
8 04-00266 1 Fan 1 11872
7 04-00297 1 Dekal 1 20089
6 03-02423 1 Insug_förlängning 1
5 03-02424 2 Holder_bracket 1
4 03-02427 1 Top_front 1
3 03-02430 1 Fan_Inlet 1
2 03-02365 2 Side piece, Sauno heater 1
1 01-00443 1 Base asm. 2
Item
no. Art.no. Qty. Description Issu eGarp No.
9
8
6
Caution:
Mind the orientation on
pos 2 (the biggest
distance between hole
and egde should be
facing upwards)
7
1 2
2
3
4
5
( )
Scale:
Drawn by:
General
tolerances acc. to:
Sheet no. : Issue:
Last save:
Drawing no. :
Material:
A3
ISO E
Detta dokument och dess innehåll tillhör Logosol AB. Innehållet får ej kopieras, reproduceras, överföras eller skickas till tredje part, eller användas för syften som ej skriftligen godkänts.
Weight:
1 32 4 5 6 7 8
A
B
C
D
E
F
ISO 2768-1
medium (-mK)
1:10
2
MM
1 1
15,890
Fiskaregatan 2
871 33 Härnösand
Tel: [phone]
This document and its contents are the exclusive property of Logosol AB and may not be copied, reproduced, transmitted or communicated to a third part, or used for any purpose without written permission.
Reviewed by:
01-00429
2019-12-03 09:22
Heating unit
IronCAD
2D-drawing
3D-file available
Updated underlying parts
New
Issue User
Old
Issue Date Remarks
2MM
125-jan-
2019
-
-
--
-
--
-
-
-
Assembled view (front)
Assembled view (back)
Exploded view
SCALE 1 : 7,50
9 01-00442 1 Heater asm. 1
8 04-00266 1 Fan 1 11872
7 04-00297 1 Dekal 1 20089
6 03-02423 1 Insug_förlängning 1
5 03-02424 2 Holder_bracket 1
4 03-02427 1 Top_front 1
3 03-02430 1 Fan_Inlet 1
2 03-02365 2 Side piece, Sauno heater 1
1 01-00443 1 Base asm. 2
Item
no. Art.no. Qty. Description Issu eGarp No.
9
8
6
Caution:
Mind the orientation on
pos 2 (the biggest
distance between hole
and egde should be
facing upwards)
7
1 2
2
3
4
5
Assembled view (front)
Assembled view (back)

WDU WOOD DRYING UNIT
9
COMPONENTS: WDU WOOD DRYING UNIT
EXPLODED VIEW B
( )
Scale:
Drawn by:
General
tolerances acc. to:
Sheet no. : Issue:
Last save:
Drawing no. :
Material:
A3
ISO E
Detta dokument och dess innehåll tillhör Logosol AB. Innehållet får ej kopieras, reproduceras, överföras eller skickas till tredje part, eller användas för syften som ej skriftligen godkänts.
Weight:
1 32 4 5 6 7 8
A
B
C
D
E
F
ISO 2768-1
medium (-mK)
1:10
1
MM
1 1
11,893
Fiskaregatan 2
871 33 Härnösand
Tel: [phone]
This document and its contents are the exclusive property of Logosol AB and may not be copied, reproduced, transmitted or communicated to a third part, or used for any purpose without written permission.
Reviewed by:
01-00443
2019-12-03 08:46
Base asm.
IronCAD
2D-drawing
3D-file available
-
New
Issue User
Old
Issue Date Remarks
--
--
-
-
--
-
--
-
-
-
Garp no. :
Exploded view
9 04-00270 1 Electronic box 2
8 04-00268 1 Motor (60W, 220V, 50hz, 1300rpm, IP20) 2 51K604-CF
7 03-02428 1 Spoiler 2
6 03-02429 1 Channel 1
5 03-02425 1 Choke 1
4 03-02426 1 Outer_back 2
3 03-02439 1 Foam _plastic 2
2 03-02435 1 Fan housing
1 03-02433 1 Bottom_back 2
Item
no. Art.no. Qty. Description Issu eGarp No.
6
7
2
1
3
4
5
Bend in to place and fit the
keys in the slots on pos 1.
Then bend the keys to lock
8
Assembled view (back)
9
Assembled view (front)
Seal the hole and
secure the cables
with silicone
Seal the holes and
secure the cables
with silicone.
Assembled view (front) Assembled view (back)
1 Bottom / back
2 Fan housing
3 Back piece, foam plastic
4 Outer back piece
5 Choke
6 Vent
7 Spoiler
8 Motor
9 Electronic box
10 Cooling fan, fan motor
11 Setting knob, thermostat
Bend into place and t the
keys in the slots on pos. 1.
Then, bend the keys to lock.
10
11

10
LOGOSOL AB,
Fiskaregatan 2
S-871 33 Härnösand
SWEDEN
Phone: [phone],
hereby declares that Logosol WDU Wood Drying Unit
is manufactured in conformity with:
Machinery Directive 2006/42/EG, EMC Directive
2004/108/EG and LVD Directive 2006/95/EG.
Mattias Byström, Product Manager, is responsible for
technical documentation.
Härnösand 2019-12-12
Malte Frisk, CEO
EU declaration of conformity
TECHNICAL DATA
LOGOSOL WDU WOOD DRYIN UNIT
Height 545 mm
Length 315 mm
Depth without motor 125 mm
Depth with motor 275 mm
Weight 8.7 kg
Power 2.2 kW
Electrical supply 230 V, 10 A
ELECTRIC SYSTEM
Risk of electric shock.
The electrical equipment may only be opened by
a qualied electrician.
Wiring diagram is found inside the junction box of the
drying unit.

WDU WOOD DRYING UNIT
11
A COMPLETE WOOD DRYING KILN!
Never before has it been so easy to get perfectly dried timber
LOGOSOL WDU WOOD DRYING UNIT AND DRYING CHAMBER
LOGOSOL WDU Wood Drying Unit incl. Drying Chamber
SKU: 6200-555-0000
LOGOSOL WDU Wood Drying Unit
SKU: 6200-000-0000
For joinery you need dry wood. Mouldings,
furniture, oors and windows are examples of
when the dryness of the wood is particularly
important. Preferably, the wood should have
a moisture content down to, or even below,
10% and have no cracks. This can be hard to
achieve by traditional air drying. With your
own drying kiln, you produce perfectly dried,
valuable joinery timber in a few weeks.
A wide interest
It is clear that there is a wide interest in the drying chamber
with the updated Sauno drying unit. Logosol’s products
make it very easy. Never before has there been a complete
solution, where you can be up and running with drying
your joinery timber within an hour after you started
assembling the equipment.
Advantages of the drying chamber:
✔Loading in is easy thanks to the big opening.
✔Uniform and controlled drying result.
✔Perfectly dried, valuable joinery timber in a few weeks. Within
a week you will have dried pine timber ready for planing and
moulding.
✔Energy-efcient drying with a perfect result. You get less cracks
and warping compared to air-dried timber.
✔The drying chamber together with the drying unit only weighs
about 50 kg; it can easily be moved by two people.
Advantages of the WDU drying unit:
✔Powerful fan action for effective
circulation in your drying chamber.
✔Integrated air intake.
✔Uniform & controlled drying result.
✔Perfect together with the Logosol
Drying Chamber that has a top valve
for controlling how quickly the steam
is let out.
LOGOSOL APP FOR DRYING
The app is an interactive system, which allows everyone who uses
the drying chamber to enter their actual values. The constants
of the mathematical calculations are thus continuously updated,
making the drying instructions and forecasts relatively accurate.
The app is easy to use and makes you a drying expert right away.
In 2020, Logosol will launch an app for wood drying. By
entering some values, such as sort of wood, thickness,
volume and outside temperature e.g., you get instructions
on how to set the dryer and a forecast for when the wood
will have dried to the desired percentage.
6-10 %
10-15 %
14 %
15-19 %
15-23 %
Furniture-dry
Room-dry, joinery-dry
Gluing-dry
Planing-dry
Air-dry (shipping-dry)
Recommended moisture content for timber:

LOGOSOL SWEDEN
Fiskaregatan 2, S-871 33 Härnösand, SWEDEN
Phone [phone] | Fax [phone]
[email protected] | www.logosol.com