Saunum AutoLEIL User manual

Saunum Automatic
Water Dispensing Unit AutoLEIL
INSTRUCTION FOR USE AND INSTALLATION

2
THE BEST SAUNA
EXPERIENCE TO HAVE!
I
am very glad that you have invested in the Saunum
device, and I believe that our innovative technology
will offer you a wonderful and extraordinary sauna
experience.
I have a degree in thermal engineering and come from
Southern Estonia, where my love for saunas began.The special
feature of local historic smoke saunas is the lower tempera-
ture and higher humidity level than, for example, a classic
Finnish sauna. In ordinary saunas, the stone volume of the
sauna heater is generally small. Such an arrangement can
cause a sudden, burning hot steam and an extremely uneven
temperature, where your head and shoulder level is really hot,
but your feet are left cold. Such an experience can be quite
unpleasant and may cause headaches and lead to body stress.
However, in ancient smoke saunas and Native American sau-
nas, the stones were rst heated during the day. Then the heat
stored in the stones was used to cleanse the body and create a
truly enjoyable sauna experience.
Inspired by the experience of a smoke sauna, I wanted to
create an innovative solution that combines the best featu-
res of an authentic sauna with modern technology; enabling
a pleasantly mild and relaxing sauna experience without
painfully scorching steam. For that, however, I had to solve the
problem of how to achieve an even temperature, at both the
head and foot levels. My development work was supported
by research done alongside Tallinn University of Technology,
in which we analysed the thermal stratication and air move-
ment in the sauna room. Saunum was born in cooperation
between scientic thinking and technological innovation.

3
Saunum’s unique patented mixing system of air layers cap-
tures the hot steam that rises under the ceiling of the sauna
room, mixes it with the cooler air from the surface of the oor,
and directs the milder steam back evenly. This makes for an
enjoyable, unaggressive heat. You can sit in the sauna for a
longer time and enjoy a sweat and a deep cleanse without
feeling tired. The stone volume of our heaters is signicantly
larger than other sauna heaters, which is the reason for the
especially pleasant indoor climate with long and soft steam.
A moist steamy sauna, a therapeutic salt sauna, or a healthy
aroma sauna – all of these functions are available on Saunum’s
devices to create a truly relaxing sauna experience. When
using Himalayan salt orbs in our device, salt ions that are
benecial to the skin and respiratory tract evaporate and the
steam circulates these into the air. Adding a sauna aroma sys-
tem that blends steam and healthy aroma oil creates an even
more enjoyable sauna environment.
Saunum’s sauna devices are suitable for both adults and
children.
Have a pleasant sauna!
Andrus Vare
The creator of Saunum

Saunum congratulates you
on choosing an innovative
sauna automatic water
dispensing unit!

5
CONTENTS
Warnings and notes ___________________________________
DIRECTION FOR USE
Using the automated water dispensing unit ________________
Automated water dispensing unit _______________________
Using an AutoLeil unit with a Leil Control unit ______________
Automatic water dispensing unit _________________________
Automatic water dispensing modes _______________________
Water dispensing in public saunas ________________________
Operating button ___________________________________
Button functions ____________________________________
Heating ___________________________________________
Creating a sauna type _________________________________
Technical data ______________________________________
INSTALLING
Instructions for installation _____________________________
Installing the operating button __________________________
Installing the humidity sensor ___________________________
Installing the main unit _______________________________
Installing the piping __________________________________
Pre-bent pipe ______________________________________
Installing the nozzle __________________________________
Button template ___________________________________
Electrical connection ________________________________
Warranty _________________________________________
Installation Protocol ____________________________________
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CONTENTS

6
This device should not be used by child-
ren, people with reduced mobility, or sick
people. Children should use the device only
under constant and close adult supervision.
Persons with reduced physical, sensory, or
mental capabilities, or persons with a lack
of experience and knowledge, should use
this device only under constant and close
adult supervision and only after consulting
with a physician.
Before using the sauna, all users should
consult with a physician to ensure that they
have no health conditions that would make
sauna bathing unsafe and discuss time and
temperature limitations. Pregnant women
should consult their physician before the
use of the sauna. Excessive body tempe-
ratures have the potential to cause foetal
damage during early pregnancy.
The use of drugs, medication, or alcohol be-
fore or during the sauna session may lead
to dizziness or unconsciousness, resulting
in injury or death. No person should use
this product while under the inuence
of alcohol or drugs. Persons taking medi-
cations should consult with their physician
to ensure that it is safe to use sauna while
taking their medications. Users should
place a towel between their skin and sauna
bench or wall while sitting or lounging in
the room. When using the sauna, be aware
of the dangers associated with going to the
sauna. Do not stay in the sauna room for
more than 30minutes at a time.
WARNINGS AND NOTES
All users of this product must read the
warnings and manual carefully before
using the product! Failure to follow
the instructions could result in perso-
nal injury, death, re, and/or property
damage, and the device's warranty may
be voided.
The automatic water dispensing unit is
meant for the automatic dispensing of
water on the heated stones of a sauna
heater. Through its humidity sensor and
electronics, the unit measures, creates,
and maintains the sauna climate accor-
ding to the user’s preferences.
It is not to be used for any otherpurpose!

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WARNINGS AND NOTES
Prolonged exposure to steam can be harm-
ful or fatal. Users should discontinue using
the sauna if they feel light-headed, dizzy, or
experience heat exhaustion. It is prohibi-
ted to sleep inside the heated sauna. Users
should take care to avoid falling asleep
while using the sauna.
The electrical device should only be con-
nected to the mains in accordance with
all laws and regulations by a licensed,
professional, certied electrician.
After connecting and installing the
control unit, the installer must inform
the sauna owner or operator of all ope-
rating requirements.
The requirements for use must be given
by the owner or operator to everyone
who uses the sauna.
All maintenance other than regular sur-
face cleaning of the product must be
performed by a trained professional.
Always disconnect the device from the
mains before carrying out any main-
tenance work!
• Check the control unit for visible da-
mage before installation and use. Do
not use a damaged device or a de-
vice that has been modied from the
original manufacturer's condition in
any way.
• It is vital to install the device accord-
ing to the instructions for installation
and use. Failure to carefully follow all
instructions can cause the risk of re
or short-circuit, leading to property
damage bodily injury, or death.
• Accessories that the manufacturer
has not approved should not be ins-
talled in this device. If suitable acces-
sories are installed in the device,
follow the accessory-specic ope-
rating and installation instructions!
• If the supply cord is damaged, it
must be replaced by the manufac-
turers' service partner or a similarly
qualied licensed, professional, cer-
tied electrician to avoid a hazard.
• Clean the control panel by using a
lightly moistened cloth. Use only
mild cleaning agents, never solvents
or corrosive chemicals. Allow the
product to dry thoroughly before
operation.
• This product should not be disposed
of with general household waste.
When recycling your product, take
it to your local collection facility or
contact the place of purchase.
.

8
GENERAL INSTRUCTIONS
USING THE AUTOMATED
WATER DISPENSING UNIT
The air in the sauna becomes dry as it heats
up.Therefore, it is necessary to create steam
to achieve a suitable level of humidity. The
eects of heat and steam on people are
dierent. When testing the dierent set-
tings of the sauna climate device, you will
nd the most suitable combination of
temperature and humidity. The eects of
heat and steam on people are dierent.
• Always check there are no water
leaks in the system.
• Always check that the water dis-
pensing unit has switched o and
stopped water dispensing after the
operation period has elapsed.
• Always check that the water tap is
closed when the sauna session is
nished.
• Make sure that the controller unit
is installed in a dry room where the
ambient temperature does not drop
below 0ºC to avoid the water in the
system freezing.
• Excessive moisture may damage
the electrical equipment and sauna
construction!
• Make sure you have proper venti-
lation in the sauna room. Ventilate
the sauna room after high-humidity
sauna sessions.
• Avoid throwing excessive amounts
of water on the stones.
• Prolonged sauna use can damage
your health or cause death.
• Do not stay in the steam room for
more than 30 continuous minutes
(in a row).
• Leave the steam room if you feel
sleepy, dizzy, or weak.
• Do not dry objects or living things in
the sauna.

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COMPONENTS
AUTOMATED WATER
DISPENSING UNIT
The Saunum water dispensing unit
AutoLEIL consists of a control unit with
water valve (1), an operating button (2),
a spray nozzle (3), a humidity sensor (4)
and a set of cables for (5).
1.
2.
3. 4.
5.
The control unit controls the supply of wa-
ter to the heater.
The operating button is used to turn ON/
OFF the automatic dispensing function and
throw extra water on the heater stones.
The spray nozzle creates a wide-dispersed
water spray pattern.
The humidity of the sauna room is regula-
ted based on humidity sensor readings.

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USING AUTOLEIL UNIT
WITH LEIL CONTROL UNIT
The device requires a Saunum Leil cont-
roller for operation and is suitable with
Saunum heaters.
NB! AutoLEIL requires the latest Saunum
Leil controller software. Before proceed-
ing, be sure to update the "Control
Panel" on the Leil touch screen.
AutoLEIL communicates with the Saunum
Leil controller via the data cable. Leil is
the main controller of the heater system,
whereas AutoLEIL is an accessory device in
the system.
AutoLEIL is recognised by Leil when they
are connected. AutoLEIL does not have its
own user interface it uses the touch screen
control panel of the Leil system and the
AutoLEIL functions will appear in Leil system
when the two systems are connected.
The automatic water dispensing unit will
turn o when the set time ends, when the
"Stop" button is pressed on Leil, when the
automatic dispensing function is turned
OFF via operating button, or when an error
occurs.
AUTOMATIC WATER
DISPENSING UNIT
The water dispensing unit is designed for
the automatic dispensing of water on the
INSTRUCTIONS FOR USE
heated stones of a sauna heater and scans
and maintains sauna climate according to
the user’s preferences through the sensors
and electronics of the unit. The automatic
dispensing of the water allows the sauna
user to sit back and relax, while the sauna
humidity is regulated automatically. Water
dispensing parameters and sauna climate
parameters can be modied through the
Leil touchscreen control panel.
• Controls the sauna room humidity
according to humidity sensor read-
ings by automatically dispensing
water on the heater stones.
• Alternatively, the unit can be set up
to throw user-specied amounts of
water at specied time intervals.
• Enables three pre-set sauna types
where the automatic water dispens-
ing is described separately.
• The operating button inside the sau-
na allows for a“push button”method
of throwing water on heated stones.
• Enables selecting a time for the sau-
na to be ready for use
After completing the installation of the
unit, the installer should give this manual to
the owner of the sauna. The product owner
should provide the manual to all persons
using or operating the sauna. Please read
more instructions for the installation, use,
and recycling, in the original user manual
of the control unit. Saunum reserves the

11
The maximum relative humidity value that
can be applied in Automatic Mode is corre-
lated to the previously set temperature
value. For example, it is not possible to set
a more than 30% RH in a 70C sauna. The
approximate temperature/humidity limits
are shown on the graph below.
Water is dispensed on the stones in 1 minu-
te intervals until the target humidity value
is reached. Up on reaching the target humi-
dity value, water is then dispensed when
the humidity drops 5 percentage points
below the target value.
As every sauna has unique ventilation,
insulation, room size and layout, power of
the heater, etc., the target value might not
be possible to obtain or is reached at the
expense of overly cooled stones. Experi-
menting is necessary to determine the
most optimal dispensing parameters.
right to modify this manual from time to
time, and modications will be posted to
www.saunum.com. Failure to follow the
instructions could result in personal injury,
death, re, and/or property damage, and
the device's warranty may be voided.
AUTOMATIC WATER
DISPENSING MODES
There are two dierent modes to set up the
automatic water dispensing  Automatic
and Manual Humidity modes.
Automatic Humidity mode allows the
user to dene their desired relative humi-
dity (RH) (5–60% RH) in the sauna and
duration of the automatic dispensing cycle
(1–30 min). AutoLEIL automatically opti-
mises the water quantity and dispensing
interval in order to reach the desired humi-
dity level and maintain uniform humidity
throughout the session duration.
INSTRUCTIONS FOR USE
Temperature C
Relative humidity %
AutoLEIL
Automatic
Manual
12%
30 min

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Manual humidity mode allows the user
to dene the water quantity (i.e., the dura-
tion that the water valve is open during
dispensing or in other words how long the
ow of water remains on the heater stones.
This can be adjusted from 0.3–4 sec), the
time interval of the water dispensing unit
(1–10 min) and the duration of the automa-
tic dispensing cycle (1–30 min).
The exact amount of water dispensed de-
pends on the water tap pressure. Please
note that, in most cases, with good water
pressure a 2–4 second value for water
quantity can be an excessive amount of
water. We recommend to start testing with
0.5–0.8seconds to get a feel.
WATER DISPENSING IN
PUBLIC SAUNAS
By default, the AutoLEIL duration can be
congured for up to 30 minutes. In public
saunas where the sauna is operating most
of the day, this 30 minute duration is in-
sucient. In such cases, a manual switch
needs to be made on Leil“Power board”(in-
side the control box). Not to be confused
with AutoLEIL circuit board.
NB! Make sure the device is discon-
nected from the main power before
opening the control box!
To do this, open the cover on the Leil cont-
roller (secured with 6 screws). Locate the
red dip switch on the circuit board and
move switch number 2 to the ON position.
After making that switch, the settings are
changed in AutoLEIL duration setting. Now
the duration can be set from 1 hour to up to
12hours, 1-hour increments.
NB! After making the switch, only Public
Sauna mode is available in AutoLEIL
settings.
ON
1 2 3 4 5 6 7 8
Switch ON nr 2
INSTRUCTIONS FOR USE
AutoLEIL
Automatic
Manual
30 min
0.3 s
1.0 min

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To illustrate the previous settings, a splash
of water (0.7 sec) is dispensed on the hea-
ter in 5-minute intervals. Simultaneously
with each splash, the ventilator is acti-
vated (“Automatic Vent” function = ON).
The ventilator operates for 2 minutes (this
duration is set in Types settings) and for the
remaining 3 minutes the ventilator stays
o. The cycle restarts when 5 minutes is up.
Please note that in Public Sauna mode the
humidity sensor functionality is limited to
only reading the relative humidity value.
The automatic humidity function is not
available.
OPERATING BUTTON
The device can be operated both through
the operating button and Leil touchscreen
control panel. The operating button is
intended for turning the automatic water
dispensing ON or OFF, as well as dispensing
additional splashes of water on the rocks in
between the automatic dispensing. The Leil
control panel on the other hand allows to
ne tune the settings of AutoLEIL water dis-
pensing and the desired sauna parameters.
Default settings can be restored if the
switch is returned to its original posi-
tion.
We recommend conguring the water
dispensing to a small water quantity
and adequate water dispensing inter-
vals to avoid cooling the stones, for
example a 0.7 sec water splash at 3 to
5minute intervals. We also recommend
activating the “Automatic Vent” func-
tion from the AutoLEIL options. This
will ensure that whenever water is auto-
matically dispensed (or dispensed on
demand from the operating button),
the ventilator will be activated for the
pre-set duration according to the Sauna
Type settings. In public sauna mode we
recommend the ventilator duration and
water dispense interval are in more or
less 50/50 correlation.
NB! Experimenting is necessary to
determine most optimal dispensing
parameters!
INSTRUCTIONS FOR USE
AutoLEIL
2 h
0.3 s
1.0 min
Public sauna

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BUTTON FUNCTIONS
ON/OFF Long press the operating button
(~1 sec) to turn automatic water dispensing
ON/OFF. LED light indicates whether the
dispensing is ON (light ON) or OFF (light
OFF). The dispensing cycle will remain ac-
tive for pre-set cycle duration as seen in
control unit interface (default 30 min). It is
recommended to turn OFF automatic water
dispensing when leaving sauna room, this
will avoid excessive cooling of the rocks.
Water. When you short press or click the
operating button (while ON), the device
dispenses a pre-set amount of water on
the heater stones. This does not interrupt
the automatic dispensing or reset the water
dispensing interval.
HEATING
Setting up the sauna!
Tap screen to get started.
The “sauna ready” time is when the sauna’s
steam zone temperature has reached the
selected temperature level.
“Humidity settings” allow to set up auto-
matic water dispensing in either Automa-
tic or Manual control mode and ne-tune
the water dispensing.
Tap the "Start" button to start heating the
sauna.
INSTRUCTIONS FOR USE
Saunatype
80 C
09:55
12%
AUTO
12%

15
While the sauna is in heating mode, it is pos-
sible to change the “sauna ready” time and
the temperature by tapping on the time
and temperature controls and selecting the
desired numbers.
CREATING A
SAUNA TYPE
The automatic water dispensing function
can be described dierently in each pre-set
sauna type.
Name your sauna type.
Set the heater.
Set the water dispensing.
INSTRUCTIONS FOR USE
Finnishsauna2/2
Automatic
Manual
30%
30min
Finnish sauna
Finnish sauna1/2
09:55
MANUAL

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TECHNICAL DATA
CONTROL PANEL (LEIL TOUCH SCREEN):
• Humidity adjustment range 560%
RH.
• Water output period adjustment
range: 0.3–4 sec.
• Automatic water dispensing inter-
val adjustment range 1–10 min.
• Automatic water dispensing func-
tion duration adjustment range:
1–30 min or 1–12 hrs settings.
MAIN UNIT:
• Supply voltage: 230V 1N~.
• Length of outlet hose 1.5 m.
• Dimensions: 60 × 257 × 165 mm.
OPERATING BUTTON:
• Length of cable: 4 m.
• Dimensions 72 × 72 × 15 mm.
HUMIDITY SENSOR:
• Length of cable: 4 m.
• Dimensions 30 × 50 × 20 mm.
TECHNICAL DATA

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TECHNICAL DATA
DRY ROOM
STEAM ROOM
Optional
extra
button
Water
output
Humidity
sensor
(location
according
to
manual)
SiHF 4 x 0.25 mm
SiHF 4 x 0.25 mm
Button
AutoLEIL
15/10 mm hose
Water tap
2x1.5 mm
230 V 1N~
Leil controller
SiHF 4 x 0.25mm
KLMA
 x 0,8 + 0.8 HF
G3/4, max 4 bar, max 60°C

18
INSTRUCTIONS FOR INSTALLATION
INSTRUCTIONS
FOR INSTALLATION
WARNING! Failure to install the pro-
duct in accordance with all instructions
herein will void the warranty. It can
result in the risk of re and/or electrical
short-circuiting, leading to property da-
mage, bodily injury, or death.
A licensed professional electrician may
only do the installation of the control unit
in accordance with current regulations. The
person in charge of the installation should
provide the necessary training and return
the user manual to the product owner after
completing the installation. The product
owner should provide access to the manual
to all persons using or operating the pro-
duct.
INSTALLING
THE OPERATING
BUTTON
Install the operating button inside the sau-
na room.The button can be installed on the
sauna wall or on the bench.
For concealed installation, the data cable
can be installed in a protective tube inside
the wall; if this is not possible, it must be
installed on the wall surface.
1. Use the printed template to mark loca-
tions for screw holes and a drill hole (Ø18–
23 mm drill bit) for the cable connector
(see page 24). If the cable is not concealed
inside the wall, the hole can be only 5 mm
deep or carved into the wall using a sharp
blade.
The operating button must be installed on
the wall, in a place protected from water
splashes.

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2. Install the screws, leaving the heads out
3-4mm from the wall. Drill the hole through
the wall and bring the cable to the opening.
Pull enough cable through the hole to con-
nect the cable to the button connectors. L- L+ B- B+
3. Connect the wires to the button con-
nector. Make sure the wires are connected
to the main unit in the same colour code
order. See also the electrical schematic on
page 26.
4. Connect the button to the wall, aligning
screw heads with the keyholes in the back
of the button.
If it’s not possible to conceal the cable
inside the wall, it can be installed on the
wall surface. In this case, the wires must
be pulled through the groove in the woo-
den enclosure before connecting to the
connector.
INSTRUCTIONS FOR INSTALLATION

20
INSTALLING
THE HUMIDITY SENSOR
Install the humidity sensor inside the sauna
room.The sensor should be installed on the
opposite wall to the heater. Best to install
it in the centre of the wall at 150–170 cm
from the oor.
Connect the wires to the button connector.
Make sure the wires are connected to the
main unit in the same colour code order.
See also the electrical schematic on page
26.
INSTRUCTIONS FOR INSTALLATION
Length
150–170 cm
Length / 2
Length / 2
Opposite wall of the heater
5V D+ D- Gnd