Page 1
®
Instructions for Installation and Use
ETL LISTED
®
CONFORMS TO
UL STD 875
CERTIFIED TO
CAN/CSA STD
E60335-2-53-05
Steamist Digital Sauna Control Models: S170-1 and S170-3
These instructions for installation and use are intended for
owners of saunas, heaters and control units, person in charge of
managing saunas, heaters and control units, and for electricians
responsible for installing heaters and control units. Once the
control is installed, these instructions for installation and use
must be handed over to the owner of the sauna, heater and
control unit, or to the person in charge of maintaining them.
Congratulations on making an excellent choice in choosing a
Steamist Sauna Product!
Steamist Digital Sauna Control
Control unit's purpose of use: The control unit is meant for
controlling the functions of an electric sauna heater. It is not to be
used for any other purpose.
Contents
1. Steamist Digital Sauna Control
1.1 General
1.2 Technical Data
1.3 Troubleshooting
2. Instructions For Use
2.1 Using the Heater
2.2 Using Accessories
2.2.1 Lighting
2.2.2 Ventilations
3. Instructions For Installation
3.1 Installing the Control Panel
3.2 Installing the Power Unit
3.2.1 Electrical Connections
3.2.2 Resetting the Overheat Protector
4. Spare parts
Steamist Limited Warranty
1. Steamist Digital Sauna Control
1.1 General
The Steamist Digital Sauna Control unit can be used to
control sauna heaters within an output range of 2.3 - 15
kW. The control unit consists of a control panel, a power
unit and a sensor. See Figure 1.
The control unit regulates the temperature in the sauna
room based on information given by the sensor. The
temperature sensor and the overheat protector are located
in the sensor box. The temperature is sensed by an NTC
thermistor and is a resettable overheat protector.
The control unit can be used to preset the start of the
heater (pre-setting time). See Figure 3.
Steamist Digital Sauna Control
MENU
1.2 Technical Data
Contrtol Panel:
● Temperature adjustment range 104 - 194°F.
● Pre-setting time adjustment range 0 - 12 h.
● Lighting control, max. power 100W, 120V / 1PH
● Fan control, max. power 100W, 120V / 1PH
● Dimensions: 3.7" x 1.1" x 4.4"
Power Unit:
● Supply voltage
S170-1: 240V / 1PH
S170-3: 208V / 3PH
● Max. load
S170-1: 15kW / 240V / 1PH
S170-3: 14.4 kW / 208V / 3PH
● Dimensions: 11" x 3.1" x 7.9"
Sensor
● Temperature sensor NTC thermistor 22 kΩ / T= 77°F
● Resettable overheat protector
● Dimensions: 2" x 2.9" x 1.1"
● Weight 175g with leads, cable 13 ft.
06/11
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Pub. No. 572-C
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Figure 1 - System Components
Instructions for Installation and Use
Control Panel
Power Unit
Main Switch
1.3 Troubleshooting
If an error occurs, the power to the heater will be cut off
and the control panel will show an error message "
(number)", which helps troubleshooting the cause of the
error. Table 1.
Table 1 - Error Messages
Temperature sensor's measuring circuit broken.
E1
Temperature Sensor
Heater
(Not Included)
NOTE: The overheat protector can be reset by user. All
other maintenance must be done by professional maintenance personnel. No user-serviceable parts inside.
Check the red and yellow wires to the temperature sensor and their
connections (see Figures 6 and 7) for faults.
Temperature sensor's measuring circuit short-
E2
circuited.
Overheat protector's measuring circuit broken.
E3
Connection failure between the control panel and
E9
the power unit.
NOTE: The overheat protector can be reset by user. All other maintenance must be done by professional maintenance personnel.
No user-serviceable parts inside.
2. Instructions For Use
2.1 Using the Heater
WARNING: Before switching the heater on always check that
there isn't anything on top of the heater or inside the given
safety distance.
Start the heater by pressing the I/O button on the
control panel.
When the heater starts, the top row of the display will
show the set temperature and the bottom row will show the
set on time for five seconds.
When the desired temperature has been reached in the
sauna room, the heating elements are automatically turned
off. To maintain the desired temperature, the control unit
will automatically turn the heating elements on and off in
periods.
The heater will turn itself off when the set on time runs out,
the I/O button is pressed or an error occurs.
Changing the setting for remaining on time, pre-setting time
Check the red and yellow wires to the temperature sensor and their
connections (see Figures 6 and 7) for faults.
Press the overheat protector's reset button (see section 3.4). Check the
blue and white wires to the temperature sensor and their connections
(see Figures 6 and 7) for faults.
Check the cable and the connectors for faults.
and the desired sauna room temperature is shown in Figure
3. Changing the temperature unit (Farenheit/Celsius) is
shown in Figure 3.
2.2 Using Accessories
Lighting and ventilation can be started and shut down
separately from their own operating buttons.
2.2.1 Lighting
The lighting in the sauna room can be set up so that it
can be controlled from the control panel (Max. 100W).
Switch the lights on/off by pressing the button on
the control panel.
2.2.2 Ventilation
If there is a fan installed in the sauna room, it can be
connected to the control unit and be controlled from the
control panel.
Start/stop the fan by pressing the button on the
control panel.
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Pub. No. 572-C
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®
Instructions for Installation and Use
Figure 2 - Control Panel
Display
Indicator Lights
Temperature
ON time
MENU
Operating Buttons
Heater on/off
Lighting on/off
Fan on/off
Figure 3 - Settings Menu Strcuture
Basic Settings
Changing the settings: sauna room temperature, ON
time, and delay time
The top row shows the temperature in the sauna room.
The bottom row shows the remaining ON time. Both
indicators lights glow.
Press the MENU button to open the settings
menu.
The display shows the sauna room temperature
setting. Temperature indicator light blinks.
● Change the setting to the desired
temperature with the "+" and - buttons.
The range is 104 - 194°F.
The programmed temperature is stored in
memory and will also apply when the heater is
switched ON next time.
Advanced Settings
Changing between Farenheit to Celsius
Open the settings menu by simultaneously
pressing the control panel buttons -, MENU,
Menu & Navigation
Buttons
Value Decrease
Mode Change
and +. Press for 5 seconds.
Change the temperature unit with the "-" and
"+" buttons. The options are Farenheit (FAHR)*
and Celsius (CELS).
Value Increase
Exit by pressing the MENU button.
WARNING: Do NOT unlock these following settings unless sauna
is in a supervised spa environment.
Commercial Settings
Unlocking and changing maximum ON time
1. Switch the power off from the main switch (Figure 1).
2. Press and hold the buttons and .
3. Switch the power ON from the main switch.
4. Wait 5 seconds and release the buttons.
1
Set value ON.
Press the MENU button. The control unit
switches to standby mode.
06/11
Press the MENU button to access the next
setting. The display shows the remaining ON
time. Time indicator light blinks. Choose either to
set the ON time or Delay time.
Set the ON time (heater on):
● Press the "-" button to decrease the ON time
to a value of less than the maximum (1:00
hr). The adjustment is made in 10 minute
increments.
The programmed time is NOT stored in memory
and will default back to 1:00 hr when the heater is
switched on next time.
Set the delay time (heater off):
● Press the "+" button to set the ON time to
maximum (1:00 hr).
● Press the "+" button again to enter the
delay time mode. The temperature indicator
light switches off. Delay time symbol "[ - - ]"
blinks on the screen.
● Select the desired delay time using "-" and
"+" butttons. The adjustment is made in 10
minute increments. Press and hold the button
to make the time change faster. The adjustment
range is from 10 minutes to 12 hours.
Exit by pressing the MENU button.
- 3 -
2
Open the settings menu by simultaneously
pressing the control panel buttons -, MENU,
and +. Press for 5 seconds.
Maximum ON time
The maximum ON time can be changed with the
"-" and "+" buttons. The range is 1-18 hours or
continuous (24 hours).
Press the MENU button 5 times. The control
unit switches to standby mode.
Pub. No. 572-C
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3. Instructions for Installation
Instructions for Installation and Use
The electrical connections of the control unit may only be
made by a licensed electrician and in accordance with the
current regulations. When the installation of the control unit is
complete, the person in charge of the installation must pass
on to the user the Instructions for Installation and Use that
comes with the control unit and must give the user the
necessary training for using the heater and the control unit.
3.1 Installing the Control Panel
Install the control panel outside the sauna room, in a dry
place with an ambient temperature of above 32°F (0°C)
where is can be accessed conveniently. See Figure 4.
Figure 4 - Installing the Control Panel
A. Thread the data cable through the hole in the
back panel.
B. Fasten the back cover to a wall with
screws.
C. Push the data cable to the
connector.
D. Press the front cover into the
back cover.
D
B
A
3.2 Installing the Power Unit
Install the power unit to a wall outside the sauna room, in
a dry place with an ambient temperature of above 32°F
(0°C). See Figure 5 for instructions on how to open the
power unit cover and how to fix the unit to the wall.
NOTE: Do not embed the control unit into the wall, since this
may cause excessive heating of the internal components of
the unit and lead to damage. See Figure 5.
5 x 1 1/2”
(40 mm)
C
Figure 5 - Opening the Power Unit Cover and Mounting the Unit to a Wall
SMS-60R, SMS-80R
SMS-100, SMS-125, SMS-145
SMS-100-3, SMS-125-3, SMS-145-3
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Pub. No. 572-C
Page 5
Table 2 - Wire and Fuse sizes (S170-1)
Model
SMS-60R
SMS-80R
SMS-100
SMS-125
SMS-145
Note: neutral wire required
Watts
6,000
8,000
10,000
12,600
14,800
Amps
25.0
33.3
41.7
52.5
61.7
Voltage
240
240
240
240
240
Phase
1
1
1
1
1
Figure 6 - Electrical Connections (S170-1)
Breaker to Power Unit
1@35A - #8 AWG copper 90°C
1@45A - #6 AWG copper 90°C
Breaker to Load Center
1@70A - #4 AWG copper 90°C
1@70A - #4 AWG copper 90°C
1@80A - #3 AWG copper 90°C
Instructions for Installation and Use
Power Unit to Heater
#8 AWG copper 90°C
#8 AWG copper 90°C
Load Center to Power Unit
2@35A - #8 AWG copper 90°C
2@35A - #8 AWG copper 90°C
2@40A - #8 AWG copper 90°C
Power Unit to Heater
#8 AWG copper 90°C
#8 AWG copper 90°C
#8 AWG copper 90°C
Temperature Sensor
Must be installed
Fuse for
relay outputs
T2.5 Ah
Ceramic Slow Type
Fuse for
electronic card
40 mA
Slow type
Fan (optional)
120V / 1PH
max. 100 W
Lighting (optional)
120V / 1PH
max. 100 W
L
N
GND
L
N
GND
Factory wiring
Installation wiring
Blue
White
Red
Yellow
Data Cable
L1 L2 U1 U2 A1 A2 N N
Main switch
Control panel
wire for A1 and A2 wires
Minimum 18awg, copper, 90ºC
A2
A1
Low voltage wiring only
(data and sensor cable)
NL1L2L1L2
GND
NL1L2L1L2
Power supply/
240V / 1PH
max. 15 kW
Cutler-Hammer model CH4L125FP or
equivalant load center shall be supplied
by the electrical contractor for all floor
mounted heaters.
GND
NL1L2
Power supply/
240V / 1PH
max. 9 kW
G7Z
GND
L1 L2 L1 L2
A1 A2 L1 L2 L1 L2 GND
Floor mounted heater, max. 15 kW
A1 A2 L1 L2 GND
Wall mounted heater, max. 9 kW
S170-1 (240V / 1PH power unit)
Instructions for Installation
The power unit of the S170-1 is controlled by the digital control.
● Control panel is connected to power unit via data cable.
● Only one control panel can be connected to the power unit.
Temperature Sensor:
● Temperature Sensor is needed to operate S170-1. See section
3.3 for correct temperature sensor placement.
06/11
Two relay outputs (120V / 1PH)
● For driving a fan (max. 100W) and lighting (max. 100W).
Fuses on the electronics card (if a fuse has blown, see section
3.2.2):
● 40mA fuse for electronic unit.
● Two 2.5 Ah fuses for relay outputs U1, U2, A1, A2.
Technical Specifications:
● Max. heater power rating: 15kW
● Max. length of data cable: 25 m
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Pub. No. 572-C
Page 6
Table 3 - Wire and Fuse sizes (S170-3)
Model
SMS-80R-3
SMS-100-3
SMS-125-3
SMS-145-3
Note: neutral wire required
Watts
8,000
9,800
12,300
14,400
Amps
22.2
27.3
34.1
40.0
Voltage
208
208
208
208
Figure 7 - Electrical Connections (S170-3)
Temperature sensor Data cable Control panel
Yellow/Jaune
Blue/Bleu
White/Blanc
Red/Rouge
Phase
3
3
3
3
Wire Size AWG 90°C
Breaker to Power Unit
1@30A - #10 AWG copper 90°C
1@35A - #8 AWG Copper 90°C
1@50A - #6 AWG Copper 90°C
1@50A - #6 AWG Copper 90°C
Low voltage wiring only
(data and sensor cable)
Instructions for Installation and Use
Power Unit to Heater
#10 AWG copper 90°C
#8 AWG Copper 90°C
#6 AWG Copper 90°C
#6 AWG Copper 90°C
Fuse for
relay outputs
T2.5 Ah
Ceramic
Slow Type
Fuse for
electronic card
40 mA
Slow type
Fan (optional)
120V / 1PH
max. 100 W
Lighting (optional)
120V / 1PH
max. 100 W
Factory wiring
Installation wiring
L
N
GND
L
N
GND
L1 L2 U1 U2 A1 A2 N N
Main switch
G7Z
A1 A2 L1N L2L3L1L2L3
GND
NL1L2L3
Power supply
A1 and A2 wires
208V / 3PH
A1 A2 L1 L2 L3 GND
max. 14.4 kW
Minimum 18awg, copper, 90ºC wire for
GND
S170-3 (208V / 3PH power unit)
Instructions for Installation
The power unit of the S170-3 is controlled by the digital control.
● Control panel is connected to power unit via data cable.
● Only one control panel can be connected to the power unit.
Temperature Sensor:
● Temperature Sensor is needed to operate S170-3. See section
3.3 for correct temperature sensor placement.
06/11
Heater
max. 14.4 kW
Two relay outputs (120V / 1PH)
● For driving a fan (max. 100W) and lighting (max. 100W).
Fuses on the electronics card (if a fuse has blown, see section
3.2.2):
● 40mA fuse for electronic unit.
● Two 2.5 Ah fuses for relay outputs U1, U2, A1, A2.
Technical Specifications:
● Max. heater power rating: 14.4kW
● Max. length of data cable: 25 m
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Pub. No. 572-C
Page 7
3. Instructions for Installation
Instructions for Installation and Use
3.2.1 Electrical Connections
Figures 6 and 7 show the electrical connections of the power
unit. Tables 2 and 3 show the wire and fuse sizes. For more
detailed installation instructions see The Instructions for
Installation and Use of the selected heater model.
3.2.2 Power Unit Fuse Faults
Replace a blown fuse by a new one with the same
resistance. The placement of the fuses in the power unit is
shown in Figures 6 and 7.
● If the fuse for the electronic unit has blown, there is likely a
fault in the power unit and service is required.
● If the fuse in the line U1 or U2 has blown, there is a
problem with the lighting or fan. Check the wiring and
functioning of light and fan.
● If the fuse in the line A1 or A2 has blown, there is a problem
with the heater's overheat protector circuit. In the heater,
check the safety contactor, overheat protector and their
wiring.
Figure 8
3 15/16”
(100 mm)
D min.
A min.
Sensor
A min.
A max.
D min.
A min.
A max.
3.3 Installing the Temperature Sensor Floor-mounted
heaters (see Figure 8)
● Option 1: The temperature sensor is mounted on the wall
above the heater, along the vertical center line running
parallel to the sides of the heater, at a distance of 3 15/16"
from the ceiling.
● Option 2: The temperature sensor is mounted to the ceiling
above the heater, along the vertical center line running
parallel to the sides of the heater, and half the distance
between the wall and the heater side.
Wall-mounted heaters (see Figure 9)
● The temperature sensor is wall-mounted above the heater,
along the vertical center line running parallel to the sides of
the heater, at a distance of 3 15/16" from the ceiling.
Do not install the temperature sensor closer than 3'-3 3/8" to
an air vent. The air flow near an air vent cools down the
sensor which gives inaccurate temperature readings to the
control unit. As a result, the heater might overheat. See
Figure 10.
Half the
3 15/16”
Sensor
A min.
(100 mm)
distance
to the wall
D min.
Sensor
Model A min. inch (mm) A max. inch (mm) D min. inch (mm)
SMS-100 / SMS-100-3
SMS-125 / SMS-125-3
SMS-145 / SMS-145-3
Figure 9
3 15/16”
(100 mm)
3’-7 5/16”
(1100 mm)
5 7/8“
(150 mm)
Models: SMS-60R, SMS-80R and SMS-80R-3
06/11
5" (127 mm) 7" (178 mm)
6" (152 mm) 8" (203 mm) 52" (1320 mm)
6" (152 mm) 8" (203 mm) 52" (1320 mm)
52" (1320 mm)
Figure 10 - Sensor's min. distance from an air vent
Sensor
Capteur
- 7 -
min. 3' 3 3/8"
Pub. No. 572-C
Page 8
3. Instructions for Installation
Instructions for Installation and Use
3.4 Resetting the Overheat Protector
The sensor box contains a temperature sensor and a
overheat protector. The temperature sensor senses the
temperature and the resettable overheat protector cuts off the
heater power in case of a malfunction after which the
protector can be reset. See Figure 11.
NOTE: The reason for the overheat must be determined
before the button is pressed.
4. Spare Parts
1
3 4 5
2
Figure 11 - Reset button of the overheat protector
1 Control panel (S170-1, S170-3) 007-1347
2 Data cable 007-1348
3 Temperature sensor 007-1350
4 Circuit board 007-1351
5 Contactor 40 A 007-1352
Steamist Limited Warranty
Residential Applications
Steamist will replace any defective components in their sauna
heaters, contactors, controls, used in residential applications, for the
period of 5 years from the original purchase date. This limited
warranty covers faults in manufacture and material only, and includes
the exchange of new parts supplied by the manufacturer or the
manufacturer’s agent, after the defective parts are returned to
Steamist. The replacement of parts under warranty does not extend
the warranty period beyond the original five year period. In addition,
Steamist will perform the required labor to repair or install the
component, at the factory, for the period of one year from the original
purchase date. All costs for removal and reinstallation of the
component(s) on the job site, shipment to the factory and shipment
back to the job site will be the responsibility of the owner of the
equipment.
Commercial Applications
Steamist will replace any defective components in their sauna
heaters, contactors, controls used in commercial applications, for the
period of one year from the original purchase date.
This limited warranty covers faults in manufacture and material
only, and includes the exchange of new parts supplied by the
manufacturer or the manufacturer’s agent, after the defective parts
are returned to Steamist. The replacement of parts under warranty
does not extend the warranty period beyond the original one year
period. In addition, Steamist will perform the required labor to repair
or install the component, at the factory, for the period of one year from
the original, purchase date. All costs for removal and reinstallation of
the component(s) on the job site, shipment to the factory and
shiprrient back to the job site will be the responsibility of the owner of
the equipment. This limited warranty does not cover damage to the
heater caused by normal wear and tear, damages caused by
improper installation, improper use and care or alterations made to
the sauna product.
This limited warranty is void if the heater is used improperly.
Chemically treated water, such as spa or pool water should not be
poured over the sauna stones. The sauna room must be heated for a
minimum of 30 minutes prior to the application of water to the sauna
stones. The limited warranty is void if a shower or faucet has been
installed in the sauna. Damages resulting from the misuse of the
heater will not be covered in the warranty.
This limited warranty is void if the installation and wiring is not
performed by a certified electrician or authorized and qualified service
representative.
The limited warranty applies only to the original purchaser and
installation of the product.
A return authorization number assigned by Steamist is required
prior to returning any product for repair. Components returned without
a return authorization number may not be repaired or replaced.
East Coast Office: 25 E. Union Ave., East Rutherford, NJ 07073 • Tel: 800-577-6478 • Fax: 201-933-0746
®
West Coast Office: Tel: 800-355-6478 • Fax: 661-940-1617
06/11
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Pub. No. 572-C
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