EOS SteamAttrac User manual

Druck-Nr.: 2902 4975
Stand: 01.20
EN
Made in Germany
SteamAttrac
Steam generator for steam rooms
Installation and Operating Instructions

2 Installation and Operating Instructions - SteamAttrac
EN Documentation
Documentation
Manufacturer
Original installation and operating instructions EN
Copyright for these installation instructions remains with
EOS Saunatechnik GmbH.
Copyright as per DIN ISO 16016:
The copying and distribution of this document, as well as the use and com-
munication of its contents without express authorisation, are not permit-
ted. Compensation will be claimed in the event of infringements.
All rights reserved with regard to patent claims or submission of design or
utility patent.
Characters, symbols and illustrations
Revision history
EOS Saunatechnik GmbH
Schneiderstriesch 1
35759 Driedorf, Germany
Tel. [phone]
Fax [phone]
Web www.eos-sauna.com
Additional information about an operating step
Cross-reference to a page
Read instructions
Result of a step
Table title
Title of figure
Date Version Description
1Apr.2020 2.10 New level probe, new circuit diagrams
1 Jan. 2020 2.00 Complete revision
1 Dec. 2018 1.00 Original version

SteamAttrac - Installation and Operating Instructions 3
Contents
Documentation.........................................................................................................2
1 General safety instructions .................................................................................5
1.1 Safety levels.......................................................................................................5
1.2 Mounting and electrical installation ........................................................6
1.3 Operator instruction.......................................................................................8
1.4 Standards and regulations........................................................................ 10
2 Identification........................................................................................................... 11
2.1 Unit specifications........................................................................................ 11
2.2 Intended use .................................................................................................. 13
2.3 Models (steam rooms)................................................................................ 14
2.4 Water hardness ............................................................................................. 14
2.5 Description of the SteamAttrac steam generator ............................ 15
2.5.1 Scope of delivery.......................................................................... 17
2.5.2 Exterior view of the unit ............................................................ 18
2.5.3 Side view with immersion heaters ........................................ 19
2.5.4 Side view with supply and return lines ................................ 20
2.5.5 Top view .......................................................................................... 21
2.5.6 Connections on the base of the housing ............................ 22
2.6 Technical data ............................................................................................... 23
3Mounting................................................................................................................... 24
3.1 Steam generator........................................................................................... 25
3.1.1 Installation site ............................................................................. 26
3.1.2 Mounting the steam generator .............................................. 27
3.2 Water and steam pipes............................................................................... 32
3.2.1 Guidelines....................................................................................... 32
3.2.2 Connecting the water supply line and drain outlet ........ 34
3.2.3 Mounting the steam pipe ......................................................... 38
3.3 Installation tasks in the steam room ..................................................... 39
3.3.1 Inserting the steam pipe into the cabin and
installing the steam outlet........................................................ 40

4 Installation and Operating Instructions - SteamAttrac
EN
3.4 Electrical installation....................................................................................41
3.4.1 Circuit diagrams............................................................................42
3.4.2 Mains connection.........................................................................47
3.5 Commissioning..............................................................................................48
3.6 Running a self-test after establishing a connection to
the power supply..........................................................................................50
4Operation..................................................................................................................51
4.1 Normal operation ........................................................................................51
4.2 Descaling .........................................................................................................52
4.3 Cleaning and servicing ...............................................................................57
4.3.1 Regular maintenance..................................................................57
4.3.2 Replacing the immersion heater.............................................58
4.3.3 Resetting the safety temperature limiter.............................62
4.3.4 Troubleshooting ...........................................................................65
5Disposal......................................................................................................................67
6 General terms and conditions of service ...................................................68

SteamAttrac - Installation and Operating Instructions 5
General safety instructions
1 General safety instructions
1.1 Safety levels
Safety instructions and important operating instructions are clas-
sified according to ANSI Z535.6. Please familiarise yourself with the
following terms and symbols:
DANGER
Danger
Indicates a hazardous situation which, if not avoided, will result in
death.
WARNING
Warning
Indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION
Caution
Indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury.
NOTICE
Notice
Indicates a hazardous situation which, if not avoided, will result in
damage to the unit.

6 Installation and Operating Instructions - SteamAttrac
EN General safety instructions
1.2 Mounting and electrical installation
These installation and operating instructions are in-
tended for qualified personnel familiar with the laws
and regulations applicable to electrical installations
at the installation site. Observe the following general
safety instructions during mounting, configuration and commis-
sioning of the product.
Risk to life and limb and risk of fire
Risk to life and limb from electric shock and fire in the event of im-
proper or faulty electrical connection. This risk also applies follow-
ing completion of the installation work.
The electrical installation of the steam generator and other
electrical systems or equipment with a fixed mains connection
must only be performed by a trained electrician from an author-
ised electrical company.
Observe the stipulations in VDE 0100 part 701.
Disconnect the system and all supply lines entirely from the
mains supply when performing repair work.
Risk of burns
Touching hot pipelines can result in skin burns.
Insulate hot pipelines; they must not remain exposed.
Risk of scalding
Contact made with hot steam or hot water can result in scalding of
the skin.
The steam pipe must always have an unobstructed exit outlet in
the cabin.
When commissioning, take measurements to ensure that the
set output does not heat the cabin to over 50°C.

SteamAttrac - Installation and Operating Instructions 7
General safety instructions
Risk of chemical burns
Descaler consists of an acidic solution, which can burn eyes and
skin.
Wear eye and skin protection when working with descaler.
Clean contaminated clothing thoroughly.
Damage to the unit due to high levels of lime
Lime deposits clog the heating elements and the vaporiser tank,
slowing down the transfer of heat to the water. This can lead to
malfunctions because of overheating and blockages in the drain.
Check the hardness of the water before installing the unit.
In locations where the water is high in calcium carbonate
(above 5°dH), a water softening system is needed.
A water softening system is required if the steam generator is
used commercially.
Non-compliance with these guidelines resulting in damage to the unit ren-
ders the warranty void.
Damage to the unit
Corrosive or heavy saline atmospheres damage the contacts in the
control unit, in the relay box and in the sensors.
The control panel and sensors should not be installed in a non-
corrosive, heavy saline or chlorinated atmosphere.

8 Installation and Operating Instructions - SteamAttrac
EN General safety instructions
1.3 Operator instruction
The operator of the steam generator must be instructed in the
general safety instructions during commissioning. The operator
must be given a copy of the instructions for use.
Risk of electric shock
A risk to life and limbfrom electric shock and fire arises in the event
of improper repair work. This risk also applies after work is com-
pleted.
The housing cover must only be removed by a specialist.
Repairs and installations must only be performed by a trained
specialist.
Disconnect the system and all supply lines entirely from the
mains supply when performing repair work.
Use only original spare parts from the manufacturer.
Risk of burns and chemical burns
Touching hot parts may lead to skin burns and chemical burns of
the skin.
The operator must be familiar with the unit’s hot parts and be
able to identify them.
The operator must be familiar with the settings for the steam
supply and understand how it is controlled.
Health risks
Spending time in a steam room can lead to serious health risks or
even death for persons with health impairments.
These persons must consult with a doctor before visiting a
steam room.

SteamAttrac - Installation and Operating Instructions 9
General safety instructions
Equipment damage due to overuse
In commercial steam rooms, excessive humidity in the spatial sur-
roundings of the steam room(s) can lead to material damage.
In a commercial steam room, the steam generator must be set
so that it turns itself off after a specific period of time.
If the steam generator does not switch itself off, usage must be
supervised at all times.
Inspect the steam room each time you start the system.
Operation by children or persons with reduced mental
capacity
Children and persons with reduced mental capacity can be a risk.
Children must be supervised to ensure they do not play with
the unit.
Children under 8 years of age should not operate the steam
generator.
The settings for the steam generator may only be used by chil-
dren over 8 if they are supervised by an adult.
The steam generator must only be started by persons with re-
duced mental capacity, or limited physical or sensory abilities
under supervision or if they have already been instructed in its
use and understand the risks.
Children and persons who have not received proper instruction
must not clean or service the system.

10 Installation and Operating Instructions - SteamAttrac
EN General safety instructions
1.4 Standards and regulations
The following standards, in their currently applicable versions, were
observed when designing and constructing the steam generator.
Local regulations also apply to the installation and operation of heating,
sauna, and steam room systems.
Standard Title
DIN EN 60335-1 Household and similar electrical appliances – Part 1:
General requirements
DIN EN 60335-2-53 Household and similar electrical appliances – safety –
Part 2-53: Particular requirements for sauna heating
appliances and infrared cabins
DIN EN 60335-2-98 Household and similar electrical appliances – Safety –
Part 2-98: Particular requirements for air humidifiers
DIN EN 60335-2-101 Household and similar electrical appliances – Safety –
Part 2-101: Particular requirements for vaporizers
DIN EN 1717 Protection against pollution of potable water installa-
tions and general requirements of devices to prevent
pollution by backflow
DIN 1988-100 Codes of practice for drinking water installations – Part
100: Protection of drinking water, drinking water qual-
ity control
DIN EN 55014-1 Electromagnetic compatibility – Requirements for
household appliances, electric tools and similar appa-
ratus – Part 1: Emission
DIN EN 55014-2 Electromagnetic compatibility – Requirements for
household appliances, electric tools and similar appa-
ratus – Part 2: Immunity
DIN VDE 0100-703 Low voltage installations – Rooms and cabins contain-
ing sauna heaters

SteamAttrac - Installation and Operating Instructions 11
Identification
2 Identification
The SteamAttrac is available with an output power of 3 to 6 kW. This output
capacity can operate steam rooms with a size of 3 m3to 12 m3.
2.1 Unit specifications
Nameplate
The nameplate is attached to the underside of the base of the housing.
Nameplate (example)
A Name F Country of origin
B Model G Manufacturer
C Item number H Manufacturing date
D Operating voltage (depending on
the model)
I Serial number
E Operating pressure in pascals (bar)
Dampfgenerator
Type SteamAttrac
Art.-Nr. 94 XXXX 0X
230V N AC 3kW
0 Pa (0 bar)
Made in Germany
EOS-SAUNATECHNIK GmbH, 35759 Driedorf
S-No. 17.18 00001
A
B
C
D
E
F
G
H I

12 Installation and Operating Instructions - SteamAttrac
EN Identification
Warnings on the steam generator
The following warnings have been affixed to the steam generator (in Ger-
man, English and Russian).
Warnings on the base plate
A
B
A B
29345103 / 49.19
VORSICHT | CAUTION | Осторожно ! !
Gefahr der Beschädigung!
Beim Auslösen des Sicherheitstemperaturbegrenzers, 30 min. Abkühlzeit gemäß Gebrauchsanweisung einhalten!
Reset/Betätigung des Sicherheitstemperaturbegrenzers nur durch autorisiertes Fachpersonal !
Risk of damage!
By released thermal fuse limiter observe 30 min. cooling time according to the operating manual!
Reset of the thermal fuse limiter only by qualified authorized personnel!
Риск Повреждения!
В случае сраб. защиты от перегрева соблюсти паузу 30 мин. для охлаждения по инструкции.
Возврат предохранителя от перегрева в исходное положение только специалистом!
29344893 / 27.17
VORSICHT
Осторожно
CAUTION
Verbrennungsgefahr!
Heiße Oberächen.
Nicht berühren.
Риск ожога!
Горячие поверхности.
Избегать прикосновения.
Burn Hazard!
Hot surfaces.
Do not touch.
!

SteamAttrac - Installation and Operating Instructions 13
Identification
Requirements for operation and storage
The steam generator must be installed outside of the steam room only. The
installation location must meet the following requirements:
Ambient temperature during operation 5°C to 40°C
Air humidity during operation 30% to 75% rel. air humidity
Storage temperature: 0°C to 60°C
The water must be potable. The water pressure must be between 2 and
8bar.
The installation wall must be able to support a total weight of max. 35 kg.
2.2 Intended use
The SteamAttrac steam generator is used to generate steam for a steam
room or as a supplemental humidifier in a sauna cabin. It must only be
mounted on a wall. It is suitable for use with private or commercial steam
rooms and sauna cabins.
The SteamAttrac is operated by an external control system, e.g. Econ S2.
This control panel is not included in the scope of delivery. Use of a control
panel other than the control panel specified must be approved by EOS
Saunatechnik GmbH.
Foreseeable misuse
The following are considered instances of foreseeable misuse:
The output of the steam generator cannot accommodate the cabin vol-
ume.
The unit is operated without knowledge of or compliance with the
safety instructions.
Operating, service and maintenance requirements are not observed.
The steam generator continues to be operated after mechanical or
other types of modifications are made to it, which have not been
approved by EOS Saunatechnik GmbH.
The unit is operated by children or persons with reduced mental capac-
ity or by persons who have not been thoroughly instructed in its use.
The steam room is occupied by persons with health impairments. This
applies, in particular, to persons with cardiovascular and circulatory dis-

14 Installation and Operating Instructions - SteamAttrac
EN Identification
eases, for whom use of a steam room or sauna could pose to health haz-
ards.
1 General safety instructions, 5
2.3 Models (steam rooms)
2.4 Water hardness
NOTICE
Damage to the unit
Lime deposits clog the heating elements and the vaporiser tank,
slowing down the transfer of heat to the water. This can lead to
malfunctions because of overheating and blockages in the drain.
Check the hardness of the water before installing the unit.
In locations where the water is high in calcium carbonate
(above 5° dH), a water softening system is recommended.
If the level on the hardness scale is 11° dH or above, connecting
a water softening system to the steam generator is recom-
mended.
A water softening system is required if the steam generator is
used commercially.
Non-compliance with these guidelines resulting in damage to the unit ren-
ders the warranty void.
Water softening guidelines
Output Steam production Size of cabin Item no.
3.0 kW 4kg/h 2–3 m394 6838
4.0 kW 5kg/h 2.5–4 m394 6839
6.0 kW 8kg/h 3–7 m394 6840
Water hardness Water softening system
1°–5° dH No
6°–10° dH Recommended

SteamAttrac - Installation and Operating Instructions 15
Identification
Conversion table for units of water hardness
2.5 Description of the SteamAttrac steam generator
The SteamAttrac steam generator is an electrical device used to generate
steam for steam rooms and sauna cabins. The unit consists primarily of a
water tank with integrated heating elements (vaporiser tank), control elec-
tronics and various pipelines enclosed in a housing. The unit is a pressure-
free system. The vaporiser tank and housing are made of stainless steel.
The electronics are integrated into the unit. An external control system is
required to operate the unit. This can be purchased separately. The unit is
operated using cold water and requires a fixed water connection.
Generation of steam
Electricity is used to generate the steam. The heating elements heat the
water in the vaporiser tank and create steam. The steam is released into the
cabin using almost no pressure. Excess pressure in the vaporiser tank
builds up only if the steam pipe is blocked by condensation or objects in
the cabin.
11°–15° dH Required
16°–20° dH Mandatory
> 20° dH Mandatory
°dH °e °f ppm mMol/l
German degree 1° dH = 1 1.2522 1.7848 17.848 0.17832
British degree 1°e= 0.79862 11.4254 14.254 0.14241
French degree 1°f= 0.56029 0.70157 110 0.1
Russian degree 1°rH= 0.140 0.176 0.251 0.146 0.025
CaCO3(USA) 1 ppm = 0.056 0.07 0.1 10.01
mMol/l 1 mMol/
l =
5.6077 7.0218 10.009 100.09 1
Water hardness Water softening system

16 Installation and Operating Instructions - SteamAttrac
EN Identification
Descaling
The vaporiser tank must be descaled after 24 hours of operation. The
steam generator signals that the vaporiser tank needs to be descaled with
one flash of the control light. If the vaporiser tank is not descaled, the
steam generator continues to operate for another (approx.) 24 hours and is
then locked.
The tank must be filled with descaler in order to descale the unit. Once the
descaler has had a chance to interact, the water with the descaler is auto-
matically drained again. A rinsing process then automatically fills the tank,
after which the tank is drained again. Once drained, the unit is ready for
operation again.
NOTICE
Damage to the unit due to improper descaling
The heating coils could be damaged if the steam generator is not
descaled on a regular basis. An upstream water softening system
does not replace regular descaling and regular maintenance.
Damages to the unit due to improper descaling are not covered by
the warranty.
Use descaler suitable for water kettles and observe the manu-
facturer's dosage instructions. EOS Saunatechnik recommends
its own descaler, EOS SteamCleaner.
Descale the steam generator regularly.
Water supply line
The water supply is routed via a connector along the right side of the hous-
ing.
This supply line automatically refills the water once the water level in the
vaporiser tank falls below a certain level. A level sensor (rod) in the vapor-
iser tank sends signals to a solenoid valve that opens the inlet when the
water level in the tank is too low. It then closes the inlet once the required
water level has been reached.

SteamAttrac - Installation and Operating Instructions 17
Identification
Excess pressure
The sealed relief valve has a factory setting of 0.8 bar (800 hPa). Any excess
pressure in the vaporiser tank can escape through a drain pipe. This pipe
must be connected to a drain.
2.5.1 Scope of delivery
Check the unit upon delivery to ensure that all components were delivered
and that it is in proper working order. Contact your distributor if compo-
nents are missing or damaged. The unit must not be operated if compo-
nents are missing or damaged.
The steam generator is delivered ex works with an output of 3.0 kW, 4.0 kW
or 6.0 kW. The scope of delivery also includes the following parts for all
steam generator models:
SteamAttrac – scope of delivery
A SteamAttrac steam generator
B Installation and Operating
Instructions
C SW8 hexagon key
D Ball valve and motor
B Four 5x35 screws with four S6
anchors for installing the steam
generator on the wall
A
E
C
B
D

18 Installation and Operating Instructions - SteamAttrac
EN Identification
Accessories (optional)
2.5.2 Exterior view of the unit
Steam generator
All supply and return lines are fed through the housing and can be
accessed from the outside.
Accessories Item no.
2-piece 1 1/4”brass union for connecting the steam pipe 94.7003
SW66 ring spanner for replacing the heating elements 94.7111
0.5 m connecting hose for 3/8”–3/4”water connection 94.7004
1 1/4”steam outlet, plastic with fragrance trough 94.7005
Plastic funnel for filling the descaling solution 94.7006
Recommended control panel Econ S2 94.6269
Recommended descaling solution: EOS Steam Cleaner (con-
tains phosphoric acid), 5 L canister
2001.6065
Ventilator DN 100 12.5 – 5 W 2001.4402
Poppet valve for ventilator, plastic 2001.4404
A Housing cover
B Cable feed opening for mains
connection
C Rocker switch (to confirm descaling)
D Green indicator light for descaling
E Valve for drain outlet
F Motor for water drain valve
G Steam pipe
A
B
C D
F
G
E

SteamAttrac - Installation and Operating Instructions 19
Identification
2.5.3 Side view with immersion heaters
Side view of steam generator (example: 6 kW version)*
* The 3 kW version is equipped with an immersion heater in the middle of
the tank side shown.
The vaporiser tank is insulated by a mineral wool matting and a protective
plate to shield the housing from the heat.
A Safety temperature limiter
B Screw-in immersion heater with
intake pipe for the capillary tube
sensor (safety temperature limiter)
C Cable feed opening (mains
connection)
D Feed-throughs (for lines to control
unit)
E Button and indicator light
(descaling)
F Shielding for vaporiser tank
G Clamps for terminal connection and
control lines
H Contactors
I Intake pipe for the safety
temperature limiter’s capillary tube
sensor
B
C D
G
B I
A
E
H
F

20 Installation and Operating Instructions - SteamAttrac
EN Identification
2.5.4 Side view with supply and return lines
Steam generator with supply and return lines
The supply and drain connections are permanently mounted and can be
accessed from the outside. The ball valve for the drain outlet is controlled
by a motor. It is used to open the ball valve so that the water and the des-
caler can be drained. It is closed again when the tank is filled.
A Filler spout for descaler
B Level sensor
C 1” steam emission outlet
D Relief valve (800 hPa)
E Motor for 2-way motorised ball valve
F Drain outlet (descaling)
G Water supply line
H Drain outlet relief valve
D
E
C
F
AB
GH