WDT Sauna Plus 8 User manual

Operating and installation instructions
Automatic sauna splash system
Type Sauna Plus 8
Item no.: 24520, 24521, 24522, 24523 Language: EN

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Table of contents
1Information regarding these instructions / general information ...................................................4
1.1 Scope of validity................................................................................................................................ 4
1.2 Target group ..................................................................................................................................... 4
1.3 Symbols used.................................................................................................................................... 4
1.4 Warranty........................................................................................................................................... 5
1.5 Further information.......................................................................................................................... 6
2Safety ...........................................................................................................................................7
2.1 Appropriate use................................................................................................................................ 7
2.2 Safety instructions:........................................................................................................................... 7
3Product description - delivery scope...........................................................................................10
3.1 Delivery scope / accessories........................................................................................................... 10
3.2 Product description ........................................................................................................................ 10
3.3 Identification of the device / name plate for Sauna Plus 8 ............................................................ 15
3.4 Technical data................................................................................................................................. 15
3.5 Transport / storage......................................................................................................................... 16
4Assembly....................................................................................................................................17
4.1 Selecting the place of installation................................................................................................... 17
4.2 Assembly information (installation suggestion) ........................................................................... 17
4.3 Mechanical installation................................................................................................................... 18
4.4 Hydraulic installation...................................................................................................................... 19
4.5 Electrical installation....................................................................................................................... 20
5Commissioning ...........................................................................................................................21
5.1 Commissioning - comments ........................................................................................................... 21
5.2 Commissioning - procedure............................................................................................................ 21
6Operation / handling..................................................................................................................24
6.1 General ........................................................................................................................................... 24
6.2 Controller - software ...................................................................................................................... 24
6.3 The main menu............................................................................................................................... 28
6.4 Operation modes menu.................................................................................................................. 30
6.5 Settings menu................................................................................................................................. 42
6.6 Service menu .................................................................................................................................. 53
6.7 Login ............................................................................................................................................... 59
6.8 Logout............................................................................................................................................. 59
6.9 Optional functions .......................................................................................................................... 60
6.10 Top up consumables....................................................................................................................... 60
7Maintenance, service, faults ........................................................................................................61
7.1 Device maintenance ....................................................................................................................... 61
7.2 Regular water inspection................................................................................................................ 63
7.3 Fault removal / fault codes............................................................................................................. 63
7.4 Special versions .............................................................................................................................. 66
8Shutting down –Storage –Disposal...........................................................................................67
8.1 General ........................................................................................................................................... 67
8.2 Automatic sauna splash system ..................................................................................................... 67

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9Documents.................................................................................................................................68
9.1 Declaration of conformity .............................................................................................................. 68
9.2 Terminal diagram............................................................................................................................ 69
9.3 Commissioning report .................................................................................................................... 71
9.4 Operating data sheet...................................................................................................................... 72
9.5 Maintenance protocol .................................................................................................................... 74
9.6 Spare parts list, wearing parts list, consumables ........................................................................... 75
10Appendices.................................................................................................................................76
Imprint
All rights reserved
© Copyright by WDT –Werner Dosiertechnik GmbH & Co KG
Version: see footer
Publications of any kind and translation into other languages, also of excerpts, is only permitted with
the explicit approval of WDT - Werner Dosiertechnik GmbH & Co. KG.
Subject to technical changes
These operating instructions are based on the German original provided by the WDT company.
Responsible for the content:
WDT - Werner Dosiertechnik GmbH & Co. KG
Hettlinger Str. 17
D-86637 Wertingen-Geratshofen
Tel.:[phone] / 9 86 97 –0
Fax:[phone]
E-mail: [email protected]

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1Information regarding these instructions / general information
1.1 Scope of validity
These instructions describe the function, installation, commissioning and operation
of the Sauna Plus 8 automatic sauna splash system and the appropriate accessories.
These operating instructions must be carefully read before use and must be stored
near the device for immediate use.
1.2 Target group
Only our authorised partners and persons who were instructed regarding the
device functions and have read and understood the operating instructions may
work on the system.
Electrotechnical connection work may only be performed by appropriately trained
specialist staff!
1.3 Symbols used
The following types of safety instructions and general instructions are used in this
document:
DANGER !
"DANGER" identifies a safety instruction that is neglected at the risk
of severe or life-threatening injuries or major damage to goods!
CAUTION !
"CAUTION" identifies safety instructions that are neglected at the
risk of injuries, damage to health or damage to goods!
ATTENTION !
"ATTENTION" identifies safety instructions that are neglected at the
risk of damage to goods!

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HIGHLY FLAMMABLE !
"HIGHLY FLAMMABLE" identifies substances with a low flash point
under 21°C.
ESD-SENSITIVE !
"ESD SENSITIVE" identifies electronic components that can be
damaged by electrostatic discharge. The generally known precautions
regarding ESD-sensitive devices must be adhered to when handling
these devices!
HINT !
A "HINT" characterises information that may help to improve the
operation.
1.4 Warranty
All devices and systems of the WDT company are produced using the latest
production methods and comprehensive quality control. Please contact your
specialist dealer should you nevertheless have reason for complaint. The general
warranty conditions of WDT apply. (see below).
General warranty conditions
Company WDT provides a warranty for 2 years from the date of commissioning or a maximum
period of 27 months after delivery, assuming correct installation and commissioning with completed
and signed commissioning protocol.
Wearing parts such as seals, hoses, membranes, dosing screw conveyors, electrodes, roller carriers
and other parts that are subject to mechanical or chemical wear are excluded. We provide a
warranty for half a year on those parts.
Our ERP programme requires an invoice for each delivery (also for warranty services). Customers
will receive a credit note after returning the faulty part and its inspection as required. Please return
goods within 14 days.
Costs for consequential damage and costs resulting from handling warranty claims are excluded.
Warranty claims are not valid when the damage was caused by frost, water, over-voltage or
inappropriate handling.
HINT !
Please send a completed commissioning protocol together with the
defective part to WDT to maintain your warranty claims. We
reserve the right to settle the warranty claim when no
commissioning protocol is available.

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ATTENTION !
Modification of the device is not permitted. Warranty and product
liability claims become void when this requirement is not fulfilled.
1.5 Further information
Further information regarding specific topics such as layout of the dosing
performance or description of the operating parameters is available from your
specialist dealer or directly from:
Company WDT Werner Dosiertechnik GmbH & Co KG
Hettlinger Straße 17
86637 Wertingen - Geratshofen
Tel. [phone]
Fax. [phone]
http://www.werner-dosiertechnik.de

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2Safety
2.1 Appropriate use
The Type Sauna Plus 8 automatic sauna splash system may only be used for the
applications described in Section 3.2, Product description of the product description.
The locally applicable regulations regarding accident prevention, worker safety and
drinking water protection must be adhered to.
2.2 Safety instructions:
ATTENTION !
The operating instructions must be carefully read and considered
before installation and use!
Work on the system and changes to the settings may only be
performed by trained and instructed persons! It is particularly
important that the regulations for worker safety and accident
prevention as well as for wearing protective clothing are adhered
to.
Take note of the information stickers on the device!
Vor dem Öffnen des Gerätes
Stecker ziehen.
Before opening machine
Disconnect mains.
Avant d’ouvrir l’appareil
Retirez la fiche mâle.
Antes de abrir
el aparato sacar el enclute.
Check the dosing hose of the pump and
replace it as required when topping up
the fragrance
(see operating instructions).

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Handling of chemicals, risks to persons and the environment
Important information on the handling of chemicals and fragrances
is provided in the safety data sheets of the fragrance manufacturers!
The automatic sauna splash system mixes water with fragrance and doses it onto
the sauna heater. The fragrance concentration in the water is so low that it poses
no risk to people.
DANGER ! IRRITATION !
The undiluted fragrances may lead to irritation and allergic
reactions.
HIGHLY FLAMMABLE !
The undiluted fragrances may be highly flammable. This may cause
injuries to persons or risks to the environment. It is therefore
necessary to perform all work with great care!
CAUTION !
The fragrances may also be harmful to health in high concen-
trations!
In emergencies relating to the handling of chemicals, you can contact
a Poison Emergency Call Centre! Example for Germany:
Emergency call number:
Poison Emergency Call Munich (or any other poison centre)
Telephone: [phone]

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Protective measures and behavioral rules
CAUTION !
Water from the drinking water network is used to supply the
automatic sauna splash system.
A safety combination unit for non-poisonous liquids with free
drainage according to DIN EN 1717 (Germany and EU) is installed
in the device to protect the water supply network. The splash line
from the device to the heater shower must therefore be installed in
a way that allows the line to drain by itself (declining, without water
trap, no non-return fitting).
A system separation unit according to DIN EN 1717 for non-
poisonous liquids without free drainage must be installed in the
supply line of the automatic sauna splash system when the splash
line is not self-draining (e.g. installed with incline, non-return fitting
or water trap in the pipe).
Please adhere to the locally applicable regulations!
ATTENTION !
Modification of the device is not permitted!

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3Product description - delivery scope
3.1 Delivery scope / accessories
The Type Sauna Plus 8 automatic sauna splash system mainly consists of the
following components:
Microprocessor controller SSD + BET in housing
1 to 4 SA-Vi hose pumps for dosing fragrance concentrate
Mounting plate with bracket for fragrance bottles
Supply line with ball valve, ½“ internal thread
Fine screen 0.3 mm, brass
Safety combination unit / pipe aerator according to DIN EN1717 for self-
draining outlet lines
1 solenoid valve ¼“ VA
Pressure monitoring
Dosing pipe with 1 to 4 dosing valves 3/8“ VA
Discharge 3/8“ internal thread
Splash shower: Perforated pipe with 3/8“ internal thread
The following options are available as accessories:
1. Wall feed-through Sauna VA for heater shower: Item no.: 15214
2. Special versions of the wall feed-through are available on request
3. Special versions of the splash shower are available on request
4. Sauna splash connection set: Item no.: 20101, consisting of:
a. 10 meter PTFE hose 6x1 mm
b. Hose connection for splash automatic system 3/8“ external thread x
6x1 mm
c. Hose connection for wall feed-through 3/8“ internal thread x 6x1 mm
d. 3/8“ angle internal/external thread
5. Button plate made of wood incl. illuminated button for operation in the cabin:
Item no.: 12905
6. System separating unit ½“ for automatic sauna splash system (when outlet
pipes are not self-draining): Item no.: 24321
7. Hose connection, nickel-plated brass, 3/8“ internal thread for PTFE hose 6x1
mm, item No.: 19282
3.2 Product description
The Sauna Plus 8 automatic sauna splash system is a dosing system for a fully
automated splash onto the sauna heater. A fragrance can automatically be added
to the splash water.

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The dosing cycle, the amount of water (splash amount) and the amount of
fragrance (smell intensity) can be individually set with the touch panel on the
control unit.
The system can be controlled by an internal timer program, an internal cycle
programme or an optional button.
Overview automatic splash sauna Type: Sauna Plus 8
1. Touch display
2. Switch box
3. Safety combination unit according to DIN EN1717 (non-return valve + aerator)
4. Solenoid valve
5. Pressure switch
6. Dosing valve, 1-4 units
7. Dirt filter
8. Shut-off ball valve
9. Fragrance container, 1-4 units
10. Hose pumps for dosing, 1-4 units
11. Connection for electrical grounding
23. Main fuse (see Figure 12, Control unit with touch display)
24. Main switch (see Figure 12, Control unit with touch display)
Figure 1, Automatic sauna splash system, Sauna-Plus 8
1
2
3
4
5
6
7
8
9
10
11

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The solenoid valve (4) opens for one splash and the splash water flows to the sauna
heater. The water is retained at the diaphragm installed behind the pressure switch
(5) and pressure builds up. Fragrance dosing is released when the pressure is higher
than 1.2 barg. The dosing pump (10) selected doses the predetermined amount of
fragrance from the fragrance container (9) through the dosing valve (6) into the
water flowing to the heater.
The fault message "Water input pressure of 1.2 barg not reached, fragrance safety
switch-off => Check water supply" (see Section 7.3, Fault removal / fault codes) is
shown when 1.2 barg are not reached and the solenoid valve keeps closed. This
ensures that the fragrance concentrate can only be dosed when the necessary
water pressure is present in the device.
The installed safety combination unit (3) according to DIN EN 1717 (non-return
valve + aerator) provides additional protection against splash water flowing back
into the supply network in the event of a pressure drop. A dirt filter (7) and a ball
stop valve ½“ (8) are installed upstream of the safety combination unit (3).
ATTENTION !
The automatic sauna splash system must either be locked with the
sauna controller on-site or the splash times must be coordinated to
avoid dosing onto a cold heater! The first splash after switching on
the power is prevented when the internal time delay (0 - 30 minutes
adjustable) is activated. This switch-on delay can be switched off as
required (e.g. when the splash is externally triggered).
Dosing unit
Fragrance dosing is achieved with hose pumps that can
reliably provide very small dosing amounts, even when
air or gas bubbles are enclosed in the suction line.
Rotating rollers press the dosing hose against the wall,
squeezing out the liquid in front of the rollers while
sucking in new liquid at the same time. Hose pumps are
extremely reliable and particularly easy to operate.
Fragrance concentrates can be extremely corrosive.
The dosing hose used resists most of the commercially available concentrates.
The installation of a combined, spring-
loaded non-return and dosing valve
reliably prevents water from being
pushed back and the dosing line from
running empty. The complete valve
body consists of stainless steel, hose
Figure 2, Hose pump
function
Figure 3, Non-return and dosing valve

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connection 4x1 mm - 3/8“ external thread.
ATTENTION !
The composition of the fragrance varies. This may reduce the
service life of the hoses in the hose pumps. It is therefore necessary
to check the hose pumps on a regular basis according to the
maintenance plan.
Control unit
The control unit has a housing of protection class IP44. All electronic components
are installed in it. The touch panel on the control unit can be used to set the
operating parameters.
Control signals for external consumers / attractions
The following control signals are available for controlling external consumers.
1. Control signal for sauna heater, floating.
The controller of the automatic sauna splash system provides a signal to control
the sauna heater before a splash to ensure that the splash is not provided onto
the unheated heater.
2. Sound effect, floating.
This signal can be used to trigger a sound effect during the splash pre-indication
and/or the splash.
3. Fault message, floating
This signal can be used to send a fault message to an external GLT.
4. Sauna splash pre-indication, 230 V
This signal can be used to control a light signal within or outside the sauna in
order to announce the splash.
5. Effect illumination, 230V
This signal can be used to trigger a light effect during the splash pre-indication
and / or the splash.
Also see the terminal plan in Section 9.2.
Avoid splash onto a cold heater
There are two options for preventing the first splash onto a cold heater:
Option 1 (switch-on delay)
Activating the switch-on delay makes it possible to set a delay (0-30 min) for the
first sauna splash (see Section 6.5.2 Splash  switch-on delay).
Option 2 (pre-heat the sauna heater during operation)
The sauna heater control signal (for external consumers) makes it possible to set a
pre-heating time (0-180 sec) for the sauna heater. The sauna heater is then heated

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up before a splash. Setting see Section 6.5.3, Menu for splash announcement + sauna
 heater. This setting is available when the heater uses the feature "Preheating".
Piping and fittings
The pipes of the automatic sauna splash system consist of a ball stop valve (8), a
dirt filter (7), and a safety unit combination (5) according to DIN EN 1717 to
ensure that water cannot be sucked back into the water supply system. The piping
further includes a solenoid stop valve (3) as well as a pressure switch (4) for
pressure monitoring.
Heater shower
The standard delivery scope includes a heater shower consisting of a stainless steel
pipe d18 x 200 mm with holes that distribute the water onto the heater stones.
The heater shower has a 3/8“ internal thread connection.
Wall feed-through (optional)
We offer different wall feed-throughs with 3/8“ thread connection made of
stainless steel for installation and safe attachment of the heater shower, see Section
3.1 Delivery scope / accessories.
Figure 5, Heater shower (standard)
Figure 4, Example of a wall feed-through for heater shower (optional)

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3.3 Identification of the device / name plate for Sauna Plus 8
Enter the data on the name plate of your device here.
Array 1: Number of fragrance pumps
Array 2: Complete the item number
Array 3: Serial no.
Array 4: Manufacturing date
3.4 Technical data
Sauna Plus 8
Dimensions and weights:
External dimensions
0.70 x 0.40 x 0.23m HxWxD
Space requirements
0.90 x 0.50 x 0.30m HxWxD
Space requirements incl. operation and maintenance
2.00 x 0.60 x 1.00m HxWxD
Empty weight / operating weight
8 / 12.5kg
Connection data
Inlet water
1/2“ internal thread (up to 2,5l/min)
Outlet splash pipe
3/8“ internal thread
Connection heater shower
3/8“ internal thread
Electrical connection
230VAC, 50Hz, 50W, two-pin earthed plug
Main fuse F0
Microfuse 5x20, 1,25A lazy
Nominal pressure / operating pressure
1.5-6barg / 1.5-6barg
Required inlet pressure
1.5-6barg
Operating data:
Splash water
max. 1200ml per single splash at 100%
fragrance
max. 24ml per single splash at 100%
Cycle time
5-120 minutes
Hose pump
24V DC
Solenoid valves
1/4“ internal thread, 230VAC
Control unit for automatic splash
230VAC
Medium temperature
5-30°C
Environmental temperature in utility room
5-30°C
Humidity in utility room
max. 70%
Ventilation and extraction
Recommended for the utility room
Software version
---
Hardware version
1.2
Accessories / options
Figure 6, Name plate

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3.5 Transport / storage
The device must be checked for possible transport damage immediately after
receipt.
CAUTION !
The device can get damaged by frost or high temperatures. Prevent
exposure to frost during transport and storage! Do not store
systems and devices next to objects with high heat radiation or
directly exposed to sunlight. The device may only be transported
and stored in its original packaging. Careful handling must be
ensured.
The roller carrier of the dosing pump is not installed during transport and storage.
This prevents deformation of the hose.
Storage of fragrances / chemicals
DANGER !
The safety data sheets of the fragrance manufacturers have to be
considered with regard to storage!
The following points must be considered, among others:
Fragrances may only be stored in appropriately marked, original plastic
containers.
The fragrances must be stored in a separate storage room.
The environmental temperature may not exceed 20°C.
Also see Section 2.2.1 Handling chemicals
ATTENTION !
Observe the regionally applicable regulations for handling
chemicals!

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4Assembly
The work described here may only be performed by appropriately trained
specialist staff of a specialist company.
4.1 Selecting the place of installation
The place of installation must have the following characteristics:
1. The place of installation must be protected against frost.
2. The system must be protected against direct sunlight.
3. An electrical power connection with ground contact must be available.
4. Good air supply and extraction are recommended for the installation room.
5. A waste water connection must always be available. (only required for version
with system separation)
4.2 Assembly information (installation suggestion)
The automatic sauna splash system is mounted on a wall in the utility room. The
pipe to the sauna heater should be as short as possible. Consider the space required
for operation and maintenance of the device described in Section 3.4 Technical data.
The warning and information signs required according to the locally applicable
accident prevention regulations (Germany: GUV-V D05) must be attached at the
intended positions before the beginning of the installation.

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Installation drawing
4.3 Mechanical installation
Installing the dosing device
The SAUNA PLUS 8 dosing device is delivered ready for operation. It must be
installed at a place that is easy to access. The splash line to the heater shower must
be installed with a decline of at least 1cm per 1m pipe length! The heater shower
must be installed approx. 10-15cm above the sauna heater.
Safely attach the mounting plate to the wall with 4 screws and consider good
accessibility.
Figure 7, Assembly drawing
PS
Zulauf
230V/AC
Kabine
Ofenbrause
Kabinenwand
Sauna
Ofen
Technikraum
400
700
Gefälle 1cm pro 1m Leitungslänge
Utility room
Cabin
Cabin wall
Sauna
heater
Heater shower
Inlet
Decline 1 cm per 1 m pipe length

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Wall feed-through for heater shower (optional)
HINT !
A wall feed-through with two 3/8“ external threads made of
stainless steel is provided for installation and safe attachment of the
heater shower (see Section 3.2.5). A hole with approx. 18mm
diameter is to be drilled into the sauna wall approx. 10-15cm above
the heater; the wall attachment with collar is then inserted from the
inside. The collar is fastened to the sauna wall using the V4A screws
provided.
4.4 Hydraulic installation
Supply pipe
Rinse the supply line to the automatic splash system and then connect the intake
connector of the automatic splash system to the supply line.
Splash line to the heater shower / wall feed-through
The splash line can be connected in two different possibilities to the heater shower:
a) The splash line is installed in a way that ensures that it can self-drain completely.
b) The splash line is installed in a way that does not allow it to self-drain completely
e.g. water trap, installation at an incline).
To a) The line can self-drain
Use a pipe or hose with an internal diameter of max. 15mm.
HINT !
The safety combination unit for non-poisonous liquids with free
drainage according to DIN EN 1717, which is installed as a standard
(in Germany and the EU), is sufficient, when the outlet line is self-
draining.
Connect the splash line 3/8" internal thread to the wall feed-through (optional)
3/8“ external thread. Screw the heater shower hand-tight to the wall feed-
through. Only use Teflon tape for sealing to make shower cleaning as easy as
possible.

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To b) The line cannot self-drain
DANGER !
An additional system separation unit for nonpoisonous liquids
without free drainage according to DIN EN 1717 (in Germany and
the EU) must be installed when the splash line is not self-draining
(e.g. installed with incline, or water trap in the line). This ensures
that no fragrance can be sucked back into the drinking water line!
(see Section 3.1 Delivery scope / accessories)
Use a pipe or hose with a maximum internal diameter of 6mm.
Connect the splash line 3/8" internal thread to the wall feed-through (optional)
3/8“ external thread. Screw the heater shower hand-tight to the wall feed-
through. Only use Teflon tape for sealing to make shower cleaning as easy as
possible.
The optional sauna splash connection set, from Company WDT, is used to connect
the automatic sauna splash system with a hose to the wall feed-through.
4.5 Electrical installation
DANGER DUE TO HIGH VOLTAGE !
The electrical installation may only be performed by appropriately
trained specialist staff!
The automatic sauna splash system must be switched to a voltage-
free state and secured against switching on before electrical work is
performed!
Connect the ground terminal (11) with the ground wire on site.
Connecting control signals to external consumers:
The standard version provides 5 control signals for controlling external consumers.
Connect the appropriate control signals to the corresponding consumers.
See Section 3.2.2, Control unit and Section 9.2, Terminal plan.