Sawo STN Series Manuel utilisateur
DISTRIBUTOR’S MANUAL
2 Heating Elements 3 Heating Elements
6 Heating Elements
3,0 kW
3,5 kW
4,0 kW
4,5 kW
5,0 kW
4,5 kW
6,0 kW
7,5 kW
9,0 kW
12,0 kW
15,0 kW
STN
Steam Generators
Table of
Contents
Water Level Probe
Electrical Diagrams
Software Versions
Software Compatibility
Room temperature sensor
Cabin Light
Demand Button
Scent Pump
Maintenance
Spare parts
Decalcication
Tank Cleaning
Troubleshooting
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24
25
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16
19
19
20
21
21
22
23
26
Introduction
STP Package
Installation
STP Control Panel Instructions of Use
Technical Data
PCB Parts
DIP Switches
Steam Generator Dimensions
Choosing Correct Kilowatt Size Steam
Generator
Piping
Steam Head Location
OFF / ON Mode
Standby Mode
Auto drain Mode
Switching Between Different Mode
Temperature / Timer
Key Lock
Changing the Values
Cabin Light / Dimmer
Fan
Scent Pump
Demand Button
Standby Time
Session Time
First Block Of 8 Switches
Dipswitches For Other Functions
Steam Generator Series Connection
Dipswitches For Naming Slaves
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5
7
7
8
9
9
9
10
10
10
11
11
11
11
14
14
14
14
15
15
3
4
6
8
12
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TECHNICAL GUIDE
STN Steam Generators www.sawo.com | info@sawo.com 3
Introduction
Before installing or servicing a steamgenerator, one must understand these basic issues which are signicant on the performance
of the steamgenerator unit.
• WATER PRESSURE
The water pressure required for the STP steamgenerators is 2-8bar or 30-120psi. Below or above the pressure requirement
may lead to the damage or malfunction of the water inlet.
• ELECTRICAL SUPPLY
Advise or check breaker if it is in perfect condition and correct size compared to steam generator’s power rating. Check the
supply voltage is suitable for steam generator.
• STEAM GENERATOR LOCATION
The steam generator location must be strategic for servicing and maintenance. Do not place the steam generator inside the
steamroom or outdoors. Make sure that water or liquids cannot come in touch with the generator. Generator is not splash water
proof. Floor drain is needed to prevent water damages in case there is a leakage from the pipe.
• STEAM GENERATOR CONTROL LOCATION
Steamgenerator control unit must be installed outside the steamroom. Moisture inside the steamroom may damage the
control. A demand button can be installed inside the steamroom for switching purposes.
• SENSOR WIRE
Steam room temperature sensor is supplied with a 9m wire. If longer wires are needed, use 2 x 0.5mm2 to 2 x 1.0mm2 cable
for extension.
• WATER FILTERS
It is recommended to install a water lter when having a steamgenerator. The water lter lessens the water sediments which
causes clogged up that can destroy the steamgenerator.
4www.sawo.com | info@sawo.com TECHNICAL GUIDE
STN Steam Generators
185mm
220mm
485mm
560mm
310mm
485mm
560mm
STN Package
Inclusions:
Water Inlet
3/4” BSP
2 Heating Elements
3 Heating Elements
6 Heating Elements
Water Inlet
3/4” BSP
Power
Switch
Power
Switch
Steam Outlet
Valve
Steam Outlet
Valve
Automatic
Drain
Automatic
Drain
Thread: 1”
BSP
Thread: 1”
BSP
2 Heating Elements
3 Heating Elements
6 Heating Elements
Steam Head
(9kW, 12kW and 15kW include
two steam heads)
Steam Head Holder
Optional Items:
Steam Generator Dimensions For illustrative purposes only.
STN Controls
(Classic 2,0 | Stainless Steel Touch | Classic)
Temperature sensor with
wire and sensor holder
Aroma, Fan and Dimmer Functions
(Optional features)
Autodrain 7,5m RJ12 Cable
Demand Button Steam DoorAroma Pump
code:
size:
ST-746
790 x 1890mm
Decalcifying Solutions
TECHNICAL GUIDE
STN Steam Generators www.sawo.com | info@sawo.com 5
Choosing Correct Kilowatt Size Steam Generator
Ventilation increases adjusted room size by 30%
Medium walls increases adjusted room size by 25%
Heavy walls increases adjusted room size by 50%
Each 0.3m exceeding 2.4m in height increases adjusted room size by 15%
Maximum
room
Volume m³
2
2,5
3,5
4,5
6
7
10
14
18
23
27
34
44
54
65
kW
3
3,5
4
4,5
5
6
7,5
9
12
15
18 2x9kW
24 2x12kW
30 2x15kW
36 3x12kW
45 3x15kW
Materials
Light Walls
Acrylic / Synthetic materials.
Medium Walls
Glass, ceramic, porcelain tile.
Heavy Walls
Natural stones, marble stone,
concrete wall. Porcelain tiles
on top of concrete wall.
*Based on light walls
Example #1
Steam room has tiled walls. Tiles are not on top of thick concrete.
Example #3
Steam room acrylic walls.
Example #2
Steam room has tiled brick walls and high ceiling.
Room size:
Adjustment:
Steam Generator size:
Room size:
Adjustment:
Steam Generator size:
Room size:
Adjustment:
Steam Generator size:
2.1(h) x 1.4(w) x 1.5m(d) = 4.41m³
4.41m³ x 25% = 1.10m³
4.41m³ + 1.10m³ = 6m³
5kW
2.3(h) x 2.1(w) x 2.5m(d) = 12.08m³
0
12.08m³ + 0 = 13m³
9kW
2.7(h) x 2.1(w) x 2.5m(d) = 14.18m³
14.18m³ x 50% = 7.09m³
14.18m³ x 15% = 2.13m³
14.18m³ + 7.09m³ + 2.13m³ = 24m³
18kW
Medium walls add room size by 25%
Total, rounded up
Total, rounded up
Heavy walls add room size by 50%
Heigh ceiling add room size by 15%
Total, rounded up
6www.sawo.com | info@sawo.com TECHNICAL GUIDE
STN Steam Generators
Installation
Water Filter / Softener
Water source
Power supply
Water inlet
Control unit
Steam Line
Autodrain
Drain
Dosing nozzle
Temperature Sensor
Scent Pump
Steam Head
Over
Pressure Demand
Button
Steam
generator
1. Location of the steam generator has to be near the steam room. Place it within 7,5 meters to the steam room.
2. Steam generator has to be installed outside the steam room.
3. The steam generator must not be installed outdoors or areas that may damage the unit due to climate conditions.
4. Do not install the steam generator or plumbing lines in unheated attic or any locations where water could freeze.
5. The steam generator must not be installed in areas near ammable or corrosive materials or chemicals such as gasoline,
paint thinners, chlorine or the like.
6. Provide a level surface to install steam generator. Side hole slots are provided for wall mounting. Make sure that the steam
generator is secured and is level when mounted on the wall.
7. The steam generator has to be installed in an upright position only.
8. Install water lter and softener or alike when necessary.
9. Leave enough space for service and maintenance of the generator.
For illustrative purposes only.
TECHNICAL GUIDE
STN Steam Generators www.sawo.com | info@sawo.com 7
Piping
Running the steam line down and then up will create a
“steam trap” blocking the ow of the steam.
No trapping
Union
Do not use 1 steam
line when installing 2
steam generators.
(kW)
3-7,5
9 and above
Steam
Line
1/2”-3/4”
3/4”
Steam Line Sizes
Steam Head Location
Recommended Steam Head Location
8www.sawo.com | info@sawo.com TECHNICAL GUIDE
STN Steam Generators
STN Control Panel Instructions of Use
There are four different operation modes in the unit: Off, On, Standby and Drain. The user can easily switch between different
modes, making the steam bathing more convenient with less energy consumption.
To use steam room the control unit needs to be in the On mode. In the On mode, the steamer is active, the temperature in
the steam room will be kept in the preferred, set temperature, with occasional discharge of steam.
However, if the steam room is not used constantly, the generator can be set to Standby mode. The water in the tank is kept
warm, with minimal energy usage. The generator is able to produce steam shortly after the unit is switch back to On mode
for the convenience of the users.
More details about the different modes and how to move between them can be found in the text and graph following.
On/Off Mode
When the power switch is turned “On” the software versions of the control board and the user interface will be displayed for 1
second each. Then the control unit will go to “Off” mode. In the “Off” mode, the display is blank.
The auto drain can be disabled or enabled in the “Off” mode. Press and hold the Up button, then press the Power button. The
display will show “Adr oFF” or “Adr on” as feedback.
On Mode
For “On” mode press “Power” button.
First, the set steam room temperature is displayed blinking for 5 seconds. Then the user can change the following settings;
session time, temperature and fan (not all the models have the same features), by pressing the corresponding button in the
control unit. The up and down arrow buttons can be used to increase and decrease the values.
If no buttons are pressed for 10 seconds, the set temperature for the steam room will be displayed.
When the session time expires, the control unit will go to the “Standby” mode.
Power
Down
Cabin lights/Dimmer
Fan/Scent pump
Up
Temp/Timer
Standby
TECHNICAL GUIDE
STN Steam Generators www.sawo.com | info@sawo.com 9
OFF ON
S/B DRAIN
1
2
3 4
5
6
8
7
Standby Mode
During the standby-mode the water in the steam generator tank is kept hot. This minimizes the time to produce steam when
generator goes to on-mode next time.
Standby-mode can be activated by any of the following methods when the unit is in on-mode:
1. Short press “Standby” button
2. Short press “Power” button
3. When session time expires.
In standby-mode text “Standby” is displayed altering with the remaining standby time. To change remaining time press “up”
or “down” arrow buttons. If the time is changed during the rst 5 minutes after the activation of standby-mode, the time will
be saved as a new default standby time.
To activate on-mode again short press the “standby” button.
To go off-mode:
1. Press “Power” button for more than 3 seconds.
2. Press “Standby” button for more than 3 seconds to activate autodrain process, after which the unit goes automatically off-
mode. (If autodrain feature is not available the unit will go off-mode)
3. Wait until remaining standby time expires and autodrain process (if available) completes.
Auto drain Mode
The auto drain feature automatically drains the water system after every use. The tank is ushed and will remain empty until
the steam generator is used again.
After the Standby time runs out, control unit automatically goes to Autodrain mode. When the drain cycle is activated, the
generator’s tank will be lled rst. The water inside the tank will be cooled down, so the valve can be opened, as the water is
not boiling hot anymore.
The draining process will take about 10 minutes.
User can cancel auto drain process whenever the water level in the tank is at normal or below normal level by pressing “power”
button for more than 3 seconds.
To start Auto Drain in “On” mode press “Power” or “Standby” button followed by a long press (more than 3 seconds) of “Stand-
by” button.
The maximum draining process will take about 10 minutes.
Switching Between
Different Modes
1. Press On/Off button for more than 3 seconds.
2. Press On/Off button or demand button.
3. Press On/Off button for more than 3 seconds.
4. Press Standby button.
5. Press On/Off button or Standby button or when the session time expires.
6. Press On/Off button or Standby button or demand button.
7. Press On/Off button for more than 3 seconds or when the drain time
expires.
8. Press Standby button for more than 3 seconds or when the session time
expires.
10 www.sawo.com | info@sawo.com TECHNICAL GUIDE
STN Steam Generators
Temperature / Timer
The temperature/timer button can be used to switch between the temperature and session time.
When the steam generator is switched on, the set temperature at the steam room is displayed. It can be changed by pressing
up and down buttons.
If the temperature/timer button is pressed, the remaining session time will be displayed. It can be changed by pressing up
and down buttons. The session time will be saved as the default session time if it was changed within the rst 5 mins from the
beginning of “On” mode.
If the temperature/timer button is pressed again, the unit will return displaying the set temperature. In addition, if no buttons
are pressed for 10 seconds, the set temperature of the steam room will be displayed.
Key Lock
Lock and unlock the key pad by pressing the up and down buttons at the same time
for more than 5 seconds. A high beep will conrm the activation and the deactivation.
Only On/Off, Standby and Cabin light buttons are usable when the key pad is locked. If
other buttons are pressed, “----” is shown in the display.
The key lock function is set automatically if it was left active during the previous operation.
Changing the values
Pressing the up or down button in the settings menu will in- or decrease the currently
displayed value. A value cannot be in- or decreased above or below its maximum or
minimum value, if it is tried low tone buzzer alarms the user.
The up and down buttons are repetitive. Holding the up or down button will cause the
value to in- or decrease with an increased rate.
If no keys are pressed within 5 seconds, changes in the values are conrmed.
In the “On” mode, if no keys are pressed for 10 seconds, the display will automatically
display the set temperature.
Ce manuel convient aux modèles suivants
15
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