Sawo STP-30-1/2 User manual

MANUAL
Congratulations on your purchase of a SAWO Steam Generator.
Please read the manual carefully before using the steam generator.
STEAM
GENERATOR
3.0 kW
3.5 kW
4.0 kW
4.5 kW
6.0 kW
7.5 kW
9.0 kW
12.0 kW
15.0 kW
4.5 kW
5.0 kW
Models
STP-30-1/2
STP-35-1/2
STP-40-1/2
STP-45-1/2
STP-50-1/2
STP-45-3
STP-60-3
STP-60-C1/3
STP-75-3
STP-75-3-C1/3
STP-90-3
STP-90-C1/3
STP-120-3
STP-150-3
230V 1N~
6,0 kW
KATSOOHJEISTA
TÄRKEÄT LISÄOHJEET
LÄGG MÄRKETILLDE
VIKTIGA
TILLÄGGSANVISNINGARNA
BEACHTEN SIE DIE
ZUS
ÄTZLICHEN WICHTIGEN
ANWEISUNGEN IN DER
BEDIENUNGSANLEITUNG
READ THE MANUALFOR
ADDITIONALIMPORTANT
INSTRUCTIONS
230V 1N~
3,0 kW
KATSOOHJEISTA
TÄRKEÄT LISÄOHJEET
LÄGG MÄRKETILLDE
VIKTIGA
TILLÄGGSANVISNINGARNA
BEACHTEN SIE DIE
ZUS
ÄTZLICHEN WICHTIGEN
ANWEISUNGEN IN DER
BEDIENUNGSANLEITUNG
READ THE MANUALFOR
ADDITIONALIMPORTANT
INSTRUCTIONS
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 confirm 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.

SAWO Steam Generator
1
2
4
8
10
4
5
5
5
6
6
6
6
6
7
Before Installation
Instructions of Use
Maintenance
Steam Generator Parts
Assembly and Installation
TABLE OF CONTENTS
2
3
21
DIP Switches in the Steam Generator
22
Troubleshooting
Steam Room Guidelines
Plumbing
10
Steam Generator
11
Water Supply
11
Water Pressure
11
Connecting Water Filter and Softener
11
Steam Outlet
12
Steam Guard Overflow
12
Steam Head
12
Drain
13
Attaching Autodrain
13
Power Wiring
13
Technical Data
14
Electrical Diagram
14
Installing the Temperature Sensor
17
Installing Control Unit
18
Connection of SAWO
19
Terminal Connection of
20
On/Off Mode
Standby Mode
Auto Drain Mode
Temperature / Timer
Key Lock
Changing the Values
Optional Features
Cabin Light / Dimmer
Fan
Demand Button
7
Switching Between Different Modes
7
Scent Pump
Decalcification
8
Level probe cleaning
9
Tank cleaning
9
Control to the PCB
Demand Button (optional)
Steam Generator Series Connection
22
Before switching scent pump on make sure there is enough aroma in the
aroma container. Never run the scent pump dry.

Steam Room Guidelines
Before Installing
2
Use the following information together with the consultation of your contractor, architect
or designer in determining all factors necessary in providing a suitable and safe steam
room.
Check that the supply voltage is suitable to your steam generator.
Ensure that the steam generator kilowatt corresponds to the volume of your steam room.
Refer to Technical Data (Page 14).
The voltage of the light output is 230VAC. Sawo
recommends to use less than 50V for the steam
room lightning. Use appropriate transformer for
lower voltages. Sawo is not responsible of
damages caused by using higher voltage inside
the steam room.
WARNING
Session time can be set according to user
preferences by session dip switches on the
power controller board.
The Steam Room must be fully enclosed, complete with walls, door, flooring and ceiling.
Rubber linings (e.g. gaskets) are recommended for the door to effectively seal the
heatand the steam inside the Steam Room.
If tiles are used for the flooring or some other smooth surface material, provide
suitable anti-skid strips or rubberized mats to prevent slipping resulting to injury.
Materials used for the walls and ceiling should have water-resistant, non-corro-
sive surfaces such as tiles, marbles, molded acrylic, or other non-porous materi-
als. The ceiling should be dome-shaped to prevent the dripping of condensate.
A drain must be provided in the flooring.
Heating, venting or air conditioning devices should not be installed inside the
Steam Room.
Steam Room windows should be double paned.
Limit the Steam Room ceiling to a height of 2.5 meters. Exceeding 2.5m will require
a higher-rated steam generator.
Floor drain for the steam generator must be available for maintenance.
1.
2.
3.
4.
5.
6.
7.
8.
9.

3
Steam Generator Parts
ContactorTerminal for
incoming line
Terminal for
steam generator
accessories
Transformer
Autodrain
PCB cover
Solenoid Valve
Water Level Probe
Steam Outlet
Steam guard overflow
For illustrative purposes only.
For illustrative purposes only.
Not for use for wiring. For
component identification only.
WARNING
Power switch
2. Level probe cleaning
Alternative
Drain outlet

Instructions of Use
4
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
On/Off Mode
On 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.
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
Standby
Down Up
Temp./Timer
Fan/Scent pump
Cabin lights/Dimmer
Before installation make sure that the generator is disconnected from the mains by switching off
the circuit breaker
Note that there are two black RJ jacks on the board. One is for the control cable and the
other one for the optional slave unit. The control cable and slave cable can be connected
to either of these jacks, the order is insignificant.
Guide the RJ12 control cable through the cable lead-in hole on the side of the generator
and then behind the side panel as described in the drawing below to reach RJ jacks on the
corner of PCB

5
Standby Mode
Auto drain Mode
Temperature / Timer
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
first 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
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:
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 "Standby" button.
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 first 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.
The draining process will take about 10 minutes.
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 filled first. The water inside the tank
will be cooled down, so the valve can be opened, as the water is not boiling hot anymore.
The auto drain feature automatically drains the water system after every use. The tank is
flushed and will remain empty until the steam generator is used again.

6
Changing the values
The key lock function is set automatically if it was left active
during the previous operation.
Key Lock
Optional Features
Cabin Light /
Dimmer
If the dimmer is not present and the cabin light button is pressed, it will
switch the cabin light On/Off. When cabin light is ON red LED-indicator
next to Cabin light button in the panel is lit.
Fan
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 confirm 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 up and down buttons are repetitive. Holding the up or down button
will cause the value to in- or decrease with an increased rate.
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.
If no keys are pressed within 5 seconds, changes in the values are
confirmed.
(Optional features are not available in every model)
If dimmer feature is available press “cabin light” button to turn cabin lights
on and off. Light intensity value will be shown in the display and by press-
ing “up” or “down” arrows cabin light can be brighten or dimmed respec-
tively.
If cabin lights are already turned on long press “cabin light” button to
activate dimmer in order to change light intensity.
If no buttons are pressed within 5 seconds the last cabin light intensity
value will be saved.
Fan can be operated in "On" and "Standby" modes. Long press (more
than 3 seconds) "Fan/Scent" button in order to switch fan on/off.
In the “On” mode, if no keys are pressed for 10 seconds, the display will
automatically display the set temperature.

7
Demand Button
Scent Pump
Pressing the "Demand" button when the steam generator is in "Off" or
Standby" mode will switch the control unit to "On" mode.
Press On/Off button for more than 3 seconds.
Press On/Off button or demand button.
Press On/Off button for more than 3 seconds.
Press Standby button.
Press On/Off button or Standby button or when the
session time expires.
Press On/Off button or Standby button or demand
button.
Press On/Off button for more than 3 seconds or
when the drain time expires.
Press Standby button for more than 3 seconds or
when the session time expires.
1.
2.
3.
4.
5.
6.
7.
8.
Switching Between
Different Modes
OFF ON
S/B DRAIN
1
2
3 4
5
6
8
7
Before switching scent pump on make sure there is enough aroma in the
aroma container. Never run the scent pump dry.
Scent pump can be operated in "On" mode only. In order to switch scent
pump on/off short press “Fan/Scent” button. The Scent pump is allowed
to be turned on only when the water in the tank is boiling.
Each time the scent pump is switched on the interval of the scent pump
functioning is displayed. Interval can now be changed by pressing “up” or
“down” arrow buttons between 1 (scent pump is activated every 20 mins)
and 20 (pump on continuously). If no keys are pressed within 5 seconds,
the previously displayed value will be shown again and the scent pump
setting is saved.
If scent pump is on when the session time expires or the steam generator
is turned off by pressing “power” button, scent pump will turn off too.
Scent pump “on” and “interval” settings are saved and pump starts
automatically on the next session.
To switch off the scent pump short press “Fan/Scent” button in “On”
mode.
When the aroma oil is changed, check that the pipeline is not broken or it
does not leak. It is also recommended to wash the fragrance container
between changes, especially when using different fragrances.
The pump is easy to refill quickly: short press “Fan/Scent” button in “On”
mode to activate interval value display. Press and hold “Up” arrow button
to reach max. value 20 and scent pump will run continuously. It will take
about 10 seconds for every 1 meter of pipeline for aroma liquid to reach
the pump. As soon as the aroma liquid has reach the pump reset the
pump functioning interval as preferred.
Use only fragrances meant for steam generator use. Follow the instruc-
tions in the fragrance packing.
A separate demand button can be installed on any desired location
including inside the steam room. Press of the demand button will immedi-
ately release extra steam for 30 seconds.

8
Maintenance
Tap water contains impurities, for example lime, that can cause calcium deposit and
block the internal parts of the steam generator. To prevent this and prolong the
lifetime of steam generator it is recommended to have a water filter and water softener.
They are connected to the water source of the steam generator’s water inlet.
< 3 ºdH = very soft water, decalcification every 500 operation hours
3-6 ºdH = soft water, decalcification every 100 operation hours
6-9 ºdH = hard water, decalcification every 50 operation hours
9-18 ºdH = very hard water, decalcification every 30 operation hours
Frequency for decalcification:
Unit dH where 1 dH is 10 mg calcium in 1 liter of water
Decalcifying Solution
Cap
Use Decalcifying Solution as follows:
3-7.5
9-15
250
500
Decalcifying
Solution
(ml)
Steam
Generator
(kW)
For steam generators in commercial use (over 5
hours continuously daily) additional service plan
is recommended twice a year. Please contact
your service center for details.
SAWO Decalcifying Solution can be used for decalcification. Follow these guidelines to
perform preventative maintenance of the steam generator.
1. Decalcification
Turn on the steam generator and wait until
water inside the tank starts to boil. Turn off
the generator.
Remove the cap of angled tube in the steam
outlet piping. Before opening, make sure
that the generator is off. Cool down the
angled tube with wet cloth if needed.
Pour the solution into the water tank. Do it
slowly enough to prevent solution to flow
inside the steam pipe.
Close the cap firmly and let the solution stay
in the tank for 30 mins. Do not switch the
generator on.
Drain the water tank by one of the following
ways:
Repeat the step 5 two more times.
Press "Standby" button shortly to
activate standby mode and then press
again "Standby" button for more than 3
seconds to start auto drain.
Manually open the drain valve by pulling
the lever down.
a.
b.
1.
2.
3.
4.
5.
6.
WARNING
Never add the Decalci-
fying Solution when the
generator is on, it can
cause serious burns!

9
2. Level probe cleaning
a.
b.
c.
Disconnect steam generator from main supply before opening generator’s covers. Only
licenced electrician or professional maintence person can open covers and do cleaning.
Use adjustable wrench to deattach 3 wires from level probe. Make sure that when connect-
ing wires back, wires are connected to right probes
Use adjustable wrench to remove level probe. Clean tip of the pins from impurities using
sandpaper. Don’t damage plastic coating on pins. If coating is damaged, replace level
probe. Tighten level probe by hands and use adustable wrench only for final tightening.
3. Tank cleaning
a.
b.
c.
Disconnect steam generator from main supply before opening generator’s covers. Only
licenced electrician or professional maintence person can open covers and do cleaning.
Clean level probe as stated in 2.a to 2.b.
Remove temperature fuse and tank temperature sensor from terminal block.
d.
e.
Remove the cassette where the heating elements are attached and clean deposits from the
element
Remove deposits from bottom and sides of the tank. Open bottom plug to wash away
deposits. Don’t use autodrain valve since big particles can block autodrain valve.
f. Attach bottom plug and use teflon pipe seal if needed
g. Attach heating elements. Make sure that temperature fuse and tank tempesensor are on
the top of heating element. Inserting heating element upside down will prevent the tempera-
ture fuse from working
WARNING
Do not overtighten the nuts
that hold heating element
cassette. Damaged nut
can lead to leakage.
Easy way of cleaning the tank.

Assembly and Installation
Plumbing
The plumbing has to be done by a qualified licensed plumber. Plumbing should be in
accordance with national or local codes. Use unions for piping connections. Use only
prescribed brass piping or copper tubing. Never use black or galvanized pipe for the
plumbing as it can easily crack or damage.
10
230V1N~
3,0kW
KATSOOHJEISTA
TÄRKEÄTLISÄOHJEET
LÄGG MÄRKETILLDE
VIKTIGA
TILLÄGGSANVISNINGARNA
BEACHTENSIE DIE
ZUS
ÄTZLICHENWICHTIGEN
ANWEISUNGENIN DER
BEDIENUNGSANLEITUNG
READTHE MANUALFOR
ADDITIONALIMPORTANT
INSTRUCTIONS
Temperature sensor
Demand
Button
Water source
Water Filter / Softerner
Water inlet
Power supply
Drain
Steam Head
Steam Head
Cover
Over
Pressure
Autodrain
Dosing Nozzle
Steam
generator
Scent Pump
Control unit
For illustrative purposes only.
min.
300mm
min.150mm
min.100mm
STEAM ROOM
min.150mm
Steam Line
Minimum Space for Service and Maintenance
WALL
FLOOR
CEILING
Location of the steam generator has to be near the steam room. Place it within 7.5 meters
to the steam room.
Steam generator has to be installed outside the steam room.
The steam generator must not be installed outdoors or areas that may damage the unit due
to climate conditions.
Do not install the steam generator or plumbing lines in unheated attic or any locations where
water could freeze.
The steam generator must not be installed in areas near flammable or corrosive materials or
chemicals such as gasoline, paint thinners, chlorine or the like.
Provide a level surface to install steam generator. Side hole slots are provided for wall
mounting. Make sure that the steam generator is secured andis level when mounted on the wall.
The steam generator has to be installed in an upright position only.
Install water filter and softener or alike when necessary.
Leave enough space for service and maintenance of the generator.
1.
2.
3.
4.
5.
6.
7.
8.
9.

For illustrative purposes only.
Water Filter /
Softener
11
Water Supply
Water Pressure
Connecting Water Filter and Softener
Provide a shut off valve on the water source for the steam generator. Turn off the inlet water
line before installing the unit. Refer to the water filter’s manual for the pressure requirement
when installing. Maximum water pressure without water filter/softener is 8 bar. The water flow
range must be at minimum of 4 liters per minute. Water softener is recommend to use.
The water pressure required for the STP steam generators is 2-8 bar or 30-120psi. Below or
above the pressure requirement may lead to damage or malfunction of the water inlet.
Steam Generator
Thread:
1/2” BSP
Thread:
1” BSP
3.0 kW | 3.5 kW | 4.0 kW | 4.5 kW |
5.0 kW | 6.0 kW | 7.5 kW
9.0 kW | 12.0 kW | 15.0 kW
NOTE
Refer to Technical Data for
specifications
Side view
showing element
access panel
Overpressure
Valve
Steam
Outlet Valve
Thread:
1/2” BSP
Thread:
1” BSP
3/4” BSP
Automatic
Drain
Water Inlet
Power
Switch
470mm
540mm
Overpressure
Valve
3/4” BSP
Water Inlet Power
Switch
470mm
540mm
Steam
Outlet Valve
Automatic
Drain
NOTE
If facing the wall there should
be atleast 100mm allowance.
NOTE
If facing the wall there should
be atleast 100mm allowance.
Overpressure
Steam Out
Overpressure
Steam Out Overpressure
Steam Out
Overpressure
Steam Out

12
Steam Head
Place the steam head on a safe area where bathers cannot get in contact with it as it can get
very hot. The steam head must be facing downwards. A teflon tape or equivalent needs to be
used on the thread for tightening it. Avoid using a wrench to tighten the steam head as it might
get scratched.
Steam Outlet
Steam Guard Overflow
The overflow safety guard activates when there is an overpressure in the the steam line. It
automatically opens and releases the pressured steam. When this happens, please check
your steam line for servicing.
The steam must move in a continuous flow to the steam room. Do not istall valves on the
steam line. Use insulated, rated 120ºC or higher, brass pipe or copper tubing for steam
line to connect to the steam head as permitted by codes (see table below). Slope the steam
line height by 20mm per meter towards the steam head to avoid trapping of the condensate
and eliminate steam trap that blocks the flow of the steam.
Running the steam line down and then up will create a
“steam trap” blocking the flow of the steam.
Recommended
300mm
Steam Supply
Installation with multiple steam head
Steam Head
downward
position
Steam room wall
min. 3mm
Use a Teflon or a sealant
for the pipe threads
(1/2” BSP)
Place a sealant or
silicone to fill in the
gaps.
Recommended Steam Head Location
Add valve to each steam
lines when installing
multiple steam heads.
This is to control the
distribution of the steam
inside the room.
Do not use 1 steam line
when installing 2 steam
generators.
kW Steam
Line
1/2”
3/4”
3 - 7,5
9 and above
Steam Line sizes
Recommended
300mm

13
Only a qualified electrician should do the Electrical wiring connections.
Check the power supply before installing your unit. Single Phase connection, a 220-240V
supplied is required. Use two-wire supply source and equipment grounding wire of single
phase connection.
The installation must include switch for all pole disconnection. Circuit breaker with 3mm
control gap is recommended.
Power Wiring
A 90ºC / 600V (HO7RN-F) rated insulated copper wire is required for SAWO steam generators.
Check size of wires in Ampere Chart in accordance with the National Electrical Code and local
electrical code.
230V 1N~
3,0 kW
KATSOOHJEISTA
TÄRKEÄT LISÄOHJEET
LÄGG MÄRKETILL DE
VIKTIGA
TILLÄGGSANVISNINGARNA
BEACHTEN SIE DIE
ZUS
ÄTZLICHEN WICHTIGEN
ANWEISUNGEN IN DER
BEDIENUNGSANLEITUNG
READ THE MANUALFOR
ADDITIONALIMPORTANT
INSTRUCTIONS
Brass Tee
4
Twist
12
Attaching the Autodrain
Drain
Autodrain
Top View
3
5
Terminal Block
DRAIN
An extra outlet for the autodrain can
be found under the steam generator.
Attach the Brass tee into the outlet
that can be found on under and on
the side of the steam generator.
An extra outlet for the autodrain
can be found under the steam
generator.
Attach the autodrain to the brass
tee.
Open the cover of the steam
generator.
Put the wire through the hole on
the side of the steam generator.
Connect the wires in the terminal
block to its label.
Cover back the steam generator.
1.
2.
3.
4.
5.
6.
7.
Autodrain can also be
connected below the steam generator
Drain valve is provided for maintainance. Set drain connection for your steam
generator according to national or local plumbing requirements. Use only 1”
pipe for drain to avoid water clogged up.

14
Electrical Diagrams
3.0 kW | 3.5 kW | 4.0 kW | 4.5 kW | 5.0 kW
WARNING
Do not connect the elements
to the power supply directly.
220-240V
1N~
L2
POWER INPUT
N GL1
380-415V
2N~
C
S
CONTACTOR
WATER
FEED
SOLENOID
VALVE
CONTROL
BOARD
CONTROL
L
HEATING
ELEMENT
N G
GROUND
230VAC in
FAN
SCENT PUMP
24VAC IN CONT. DRAIN FILL PE
PROBE1
PROBE2
PROBE3
COMMUNICATION
LIGHT
SWITCH
FUSE NTC2
TRANSFORMER
610
CONVERTABLE
TEMP
SENSOR
AUTOMATIC
DRAIN
FUSE
NTC2
TEMP
SCENT
FAN
PUMP
TEMP
SWITCH
(24VAC)DRAIN
(230VAC) LIGHT
(12VDC)ILL
Technical Data
PLS. NOTE: This table is for steam rooms built in with light walls (tempered glass or acrylic. Steam rooms
with thick walls or ventilation, please use higher kilowatt steam generators
Model kW Steam
Room
Volume
(m³)
VoltageHeating Element
(V)
(kW) Type
Number
Wire
Size
mm² Width Depth Height
Size of Steam Generator
(mm)
PhaseCurrent
(A) Weight
(kg)
2.5
2.5
2.5
2.5
4.0
2.5
4.0
2.5
4.0
2.5
2.5
2.5
4.0
2.5
540 210 470
1N /
2N
1N /
2N
1N /
2N
1N /
2N
1N /
2N
3N
3N
STP-30-1/2 3.0 3 max 2 x 1.5 kW STG-150
STG-200
STG-150
STG-250
STG-250
STG-250
STG-150
STG-150
STG-200
STG-200
STG-200
STG-150
STG-200
STG-200
STG-250
18
18
18
18
18
20
20
20
23
23
540 210 470
220 - 240 /
380 - 415
220 - 240 /
380 - 415
220 - 240 /
380 - 415
220 - 240
380 - 415
380 - 415
380 - 415
380 - 415
220 - 240 /
380 - 415
14
8
16
9
18
10
20
12
22
8
9
11
18
7
STP-35-1/2 3.5 3.5 max
540 210 470STP-40-1/2 4.0 4 max
540 210 470STP-45-1/2 4.5 2 - 5
380 - 415STP-45-3 4.5 2 - 5 540 245 470
540 210 470STP-50-1/2 5.0 2 - 6
540 245 470
3N
STP-60-3 6.0 3 - 10
6.0
2.5
4.0
4.0
2.5
1N
3N
316
20
220 - 240 /
220 - 240 /
320
220 - 240 /
380 - 415
220 - 240 /
380 - 415
27
9
540 245 470STP-60-C1/3 6.0 3 - 10
540 245 470STP-75-3 7.5 4 - 15
6.0
2.5
1N
3N
20
34
11
540 245 470STP-75-C1/3 7.5 4 - 15
STP-90-3 2.53N 380 - 415 13 540 295 4709.0 8 - 20
23
STP-90-C1/3 10.0
2.5
1N
3N
220 - 240 / 323220 - 240 /
380 - 415
40
13
540 295 4709.0 8 - 20
540 295 4703NSTP-120-3 12.0 15 - 28
1 x 1.5 kW
1 x 2.0 kW
2 x 2.0 kW
1 x 2.0 kW
1 x 2.5 kW
3 x 1.5 kW
2 x 2.5 kW
3 x 2.0 kW
3 x 2.0 kW
3 x 2.5 kW
3 x 2.5 kW
6 x 1.5 kW
6 x 1.5 kW
6 x 2.0 kW
4.0STG-250 23
380 - 415 22 540 295 4703NSTP-150-3 15.0 22 - 40 6 x 2.5 kW

15
4.5 kW | 6.0 kW | 7.5 kW
380-415V
3N~
CONTROL
HEATING
ELEMENT
C
CONTACTOR
POWER INPUT
GROUND
L3 L2 L1 N G
TRANSFORMER
S
WATER
FEED
SOLENOID
VALVE
CONTROL
BOARD
230VAC in
FAN
SCENT PUMP
LIGHT
24VAC IN CONT. DRAIN FILL PE
PROBE1
PROBE2
PROBE3
COMMUNICATION
SWITCH
FUSE NTC2
TEMP
SENSOR
AUTOMATIC
DRAIN
FUSE
NTC2
TEMP
SCENT
FAN
PUMP
TEMP
SWITCH
(24VAC)DRAIN
(230VAC) LIGHT
(12VDC)ILL
CONVERTABLE
380-415V
3N~ N GL3L2L1
6.0 kW | 7.5 kW
220-240V
3~
220-240V
1N~
C
CONTACTOR
HEATING
ELEMENT
C
S
WATER
FEED
SOLENOID
VALVE
CONTROL
BOARD
CONTROL
POWER INPUT
GROUND
230VAC in
FAN
SCENT PUMP
24VAC IN CONT. DRAIN FILL PE
PROBE1
PROBE2
PROBE3
COMMUNICATION
LIGHT
SWITCH
PL
H1 H2 H3
N G
CONTACTOR
FUSE NTC2
TRANSFORMER
L3L2
L
TEMP
SENSOR
AUTOMATIC
DRAIN
FUSE
NTC2
TEMP
SCENT
FAN
PUMP
TEMP
SWITCH
(24VAC)DRAIN
(230VAC) LIGHT
(12VDC)ILL
L1

16
9.0 kW | 12.0 kW | 15.0 kW
380-415V
3N~
C
CONTACTOR
HEATING
ELEMENT
S
WATER
FEED
SOLENOID
VALVE
CONTROL
BOARD
CONTROL
POWER INPUT
GROUND
230VAC in
FAN
SCENT PUMP
24VAC IN CONT. DRAIN FILL PE
PROBE1
PROBE2
PROBE3
COMMUNICATION
LIGHT
SWITCH
L3 L2 L1 N G
FUSE NTC2
TRANSFORMER
TEMP
SENSOR
AUTOMATIC
DRAIN
FUSE
NTC2
TEMP
SCENT
FAN
PUMP
TEMP
SWITCH
(24VAC)DRAIN
(230VAC) LIGHT
(12VDC)ILL
9.0 kW
CONVERTABLE
220-240V
3~
220-240V
1N~
380-415V
3N~
C
CONTACTOR
C
S
WATER
FEED
SOLENOID
VALVE
CONTROL
BOARD
CONTROL
GROUND
230VAC in
FAN
SCENT PUMP
24VAC IN CONT. DRAIN FILL PE
PROBE1
PROBE2
PROBE3
COMMUNICATION
LIGHT
SWITCH
PL
N G
CONTACTOR
FUSE NTC2
TRANSFORMER
L3L2
L
TEMP
SENSOR
AUTOMATIC
DRAIN
FUSE
NTC2
TEMP
SCENT
FAN
PUMP
TEMP
SWITCH
(24VAC)DRAIN
(230VAC) LIGHT
(12VDC)ILL
L1
N GL3L2L1
HEATING
ELEMENTS
H1 H2 H3 H4 H5 H6

17
5.
4. Insert the temperature sensor through the
steam room wall. Do not apply staples or
other material that may damage the cable.
Apply silicone sealant on the hole in the wall
to create a moisture seal (Fig. 4). Make sure
that there is no trace of silicone on the
sensor as it may interfere its reading.
Fig. 4 Fig. 5
Silicone Sealant
Cable
Wall
Fig. 3
Push sensor
head to lock
Push to the
wall to stick
Installing the Temperature Sensor
(for illustrative purpose only)
Figure 1
The temperature sensor comes along with the SAWO steam generator. It is recom-
mended to use only Sawo temperature sensor with Sawo generator as it may other-
wise not function correctly.Temperature sensor wiring should not be routed near
power cables or hot areas as it may cause electronic interference or damage to the
wires.
An 25mm hole is required to insert the temperature
sensor. Do not create bigger or smaller hole. Clean
the hole before inserting the sensor.
Make a hole in the cable lead-in on the side of
the generator to pull the cable through. Connect
the cable in the terminal block marked as
"TEMP". See figure 2.
The temperature sensor has to be installed:1.
2.
3.
TEMP
Terminal Block
Figure 2
SAWO Steam Generator
(shown with cover removed)
Temperature
Sensor
Before installation main supply of the generator must be switch off from the
circuit braker.
Height 1.2-1.5 meters above the floor away from the steam
head so that the steam will not hit the sensor directly.
The sensor has an integrated 9-meter cable. If longer cable is
needed use 2 x 0.5 mm2 to 2 x 1.0mm2 cable for extension.
25mm

18
Installation Instructions
Installing Control Unit
If the control is attached to a
concrete wall, provide a
control holder or equivalent
to mount the control into it.
NOTE
A B
160 mm
84 mm
Wall
C
OPTIONAL
Interface Holders
Contact your SAWO distributor
Rectangle
Oval
Check the most suitable area to place your steam generator control. The control and the
steam generator should be accessible for the user and maintenance. Do not install the
control unit inside the steam room! The cable of the control is 7.5 meters.
Mount the control in the wall, according to the specifications given below. Follow illustra-
tion.
SAWO Steam Control sets the temperature of your steam room. Mount the steam control
unit on an accessible area outside the steam room. It is recommended not to place the
steam control near to showers or similar wet places.
Never attempt to modify or to fix the steam control. Ask your licensed technician or your
nearest service centre for repair.
Before installation mains supply of the generator must be switch off from the circui breaker.
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

19
Connection of SAWO Control to the PCB.
Innova
Steam Generator
Control
230V 1N~
3,0 kW
KATSOOHJEISTA
TÄRKEÄT LISÄOHJEET
LÄGG MÄRKE TILLDE
VIKTIGA
TILLÄGGSANVISNINGARNA
BEACHTEN SIE DIE
ZUS
ÄTZLICHEN WICHTIGEN
ANWEISUNGEN IN DER
BEDIENUNGSANLEITUNG
READ THE MANUAL FOR
ADDITIONAL IMPORTANT
INSTRUCTIONS
Before installation make sure that the generator is disconnected from the mains by switching off
the circuit breaker
1.
2.
3.
4.
5.
6.
7.
Note that there are two black RJ jacks on the board. One is for the control cable and the
other one for the optional slave unit. The control cable and slave cable can be connected
to either of these jacks, the order is insignificant.
Unscrew PCB cover on the side of the generator to get access on the PCB.
Guide the RJ12 control cable through the cable lead-in hole on the side of the generator
and then behind the side panel as described in the drawing below to reach RJ jacks on the
corner of PCB
Fasten the PCB cover and the top cover of the generator
Turn the mains on and switch on the power switch in the back of the generator
The software version should be displayed in the control unit
Turn the control unit on “On”mode to check it works properly