Finnleo Centurion Indoor Series User manual

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Centurion Indoor Series Owner’s Manual
Centurion Indoor Sauna with Himalaya Heater and SL2 Control
*Actual sauna may vary from image displayed.
Receiving Shipment
2
Read Before Installation
3
Room Assembly
4
Top Plate
5
Ceiling Panel & Bench
6
Leg Support
7
Back Rest & Heater Placement
8
Glass Panel
9
Door Panel
10
Door Handel & Temp Sensor
11
SL2 Control Mounting
12
Audio Operations
14
SaunaLogic 2 Control Operations
15
Maintenance and Troubleshooting
16

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Receiving Shipment
Please immediately check for any hidden
damage that may have occurred in shipping. If
any damage is found, you must notify the
delivering carrier within seven days.
Taking a few minutes with the following
instructions will ensure quick and proper
assembly, and many years of enjoyment and
relaxation. By reviewing all the instruction
steps ahead of time, you will have a better
feel for the entire process.
Your sauna package will arrive on a stretch-
wrapped pallet including a stack of prebuilt
panels, benches, and boxes with the heater
and accessories.
Tools Required
Phillips screwdriver
Finishing Nails
Torx Bit (provided)
Shims
3/8” wood bit
Cordless Drill
Tape measure
Square
Level
Handsaw or miter box (trim molding
installation)
Hammer or brad nailer
Hardware Package
2” Bag of Screws
3” Bag of Screws
Torx Bit
2 Carriage Bolts w/ Washer and nut
* Screws are specially coated to not react
with cedar or pressure treated wood.
Accessories
Styles may vary based on interior and
designer room series.

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Read all instructions carefully before
installation including instructions packaged
separately with the sauna heater. Please leave
all instructions and warranty with the owner.
Disclaimer: This manual is based off a right
glass room, if your room is a left glass room
some steps may vary.
WARNING: When using electrical sauna
heaters and associated sauna products, basic
precautions must be followed, including the
following:
1. Grounding is required.
2. No electrical receptacle shall be
installed in the sauna room.
3. Be sure rocks are placed in the heater
according to the Heater Installation
and Operation Instructions.
4. Do not tamper with the door or install
a latching or locking system.
Malfunction of which may cause
entrapment inside the heated room.
5. Do not block ventilation openings.
Vents must be kept free of obstruction
so proper airflow is maintained in the
sauna room.
WARNING: Prolonged exposure to elevated
temperatures is capable of inducing
hyperthermia. Hyperthermia occurs when the
internal temperature of the body reaches
several degrees above the normal body
temperature of 98.6°F. The symptoms of
hyperthermia include an increase in the
normal temperature of the body, dizziness,
lethargy, drowsiness, and fainting. The effects
of hyperthermia include failure to perceive
heat, failure to recognize the need to exit the
room, unawareness of impending hazard,
fetal damage in pregnant women, physical
inability to exit the room and
unconsciousness.
WARNING: The use of alcohol, drugs, or
medication is capable of greatly increasing the
risk of fatal hyperthermia.
CAUTION FIRE HAZARD: Do not use the sauna
room for drying clothes, bathing suits, etc. Do
not hang towels above the heater or place
any object, other than the rocks supplied, in
the heater. If any darkening of the wall
around the heater is noticed, discontinue
sauna use immediately.

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INSTALLATION OF SAUNA ROOM
If the sauna is to be placed against existing wall(s), panel
installation should begin away from the wall starting with the
right panel. After these panels are in place, the sauna can be
slid back towards the wall(s) keeping it 1/2” to 1” separation
from wall and sauna. Note: Parts depicted in the diagram will
differ between models.
All wall panels are numbered at the top and should be
readable from the interior of the room. These numbers will
coincide with the numbers on the base frame.
NOTE: The tongue and groove on the panels will always face
the same direction
Each panel is heavy. Use caution to avoid injury when
installing, especially the roof panels.
Two adults are required for the installation of sauna
room.
Base Installation
1. Position the base frame (or optional
false floor) in the desired location on a
level surface. The largest number on the
base frame is the standard door location. The stamped
numbers on the base frame should be readable from
inside of the room.
2. Fasten the corners of the base frame using one 3”
screw at each corner in the predrilled holes. Predrilled
holes are purposely made at an angle.
3. The base rail or optional false floor is numbered to
correspond with the panels.
Note: The base must be level before installing wall and
ceiling panels. Using a level and a square, make sure
the base frame is square and level. Shim where
needed with standard shims.
Wall Panel Installation
4. Starting with a back wall corner panel. Slide the panel
along the base frame until framework is flush with the
outside of the base frame.
5. Hold the corner so framework is tight up against the
framework of the other panel.
Optional False Floor

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Note: For ease of installing the panels, tilt
the top of each panel back to get the
tongue and groove alignment started. Then
tilt forward for an easy fit.
6. Secure the back wall to the right wall with
three 3” Torq screws (screws and bit provided). Install
one screw on the top of the wall, one in the middle,
and one on the bottom. Ensure the tongue and groove
wall boards are tight together at the interior corner of
the sauna and the corner is flush on the outside edge
when screws are installed.
7. Secure the two wall panels together with a 3” screw
(screw provided) where the panels meet on top.
Ensure tongue and groove are fully engaged.
8. Continue setting the panels into place matching base
number with panel number as marked.
NOTE: A rubber mallet or wood block and
standard hammer can be used to make sure
that the bottoms of each panel are even
with the corners of the base frame/floor
perimeter. Be careful not to damage the
panels when using this technique.
Top Plate Installation
9. After installing the wall panels, install the 1” thick top
plate. This top plate aligns and locks the top of the
wall panels together.
Note: Before installing top plates, ensure all panels are
fully connected on top and on the corners.
10. Install back top plate first. Matching top
plate with the corresponding wall panels.
Install notched ends facing up.
11. Install the left and right wall top plates notched end
facing down.
12. Firmly press down (use a hammer if needed) until top
plates rest on the framework of the wall panels.

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13. The top of the plate should be flush with the top of
the interior tongue and groove.
14. Secure top plates using the 2” Torque screws
(screws included). Install one screw in each
corner and one screw in the center of each wall.
Ceiling Panel Installation
15. Using two people,carry the first roof panel over the
sauna. One person inside the sauna room and another
outside, feed the back ceiling panels over the top of
the walls being careful not to scratch the panels.
When in position, it will rest on the top plate.
Note: if your sauna has ceiling mounted speakers,
they will be in the rear-most ceiling panel and
orientated close to the rear wall.
16. The front ceiling panel is constructed to rest on the
top plate of the wood walls and to cap the glass wall
panels with the glass panels fitting inside the channels
to stabilize and to set the glass
Note: Make sure the top of the sauna walls is square
with the ceiling panel.
Bench Installation
17. In most cases the bench supports are pre-installed. If
not, the interior walls have been marked at the
heights you should attach the bench supports.
Standard top bench support is 30” and lower bench
support is 12”. These are the heights off the floor to
the top edge of the bench supports, not the top of the
benches.
a. If not pre-installed follow these steps: Locate
the 5 bench supports. Install starting with the
top bench support first. Position the bench
supports about 1/4” away from the back walls.
Making sure they are level, use 3” screws and
pre-drilled holes to secure the bench supports
to the walls. Be sure to install screws in all the
pre-drilled holes. When installed at the height
noted, the 3” screws will line up with the
internal framing of the panels for necessary
strength.
Right Wall
Left Wall

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Right wall length of 2 supports:
Top: 16” qty 1
Bottom: 38” qty 1
Left wall length of 3 supports:
Top: 16” qty 2
Bottom: 63” (cut at wall joint) Qty 2
No leg support has been installed. Do not put
weight on front of lower platform.
18. Starting with the bottom bench first. Slide each
section into place making sure they are tight with the
wall or section before. Install platforms in this order
starting with the bottom support:
Bench A flush with back wall
Bench B Slide flush with bench A
Bench C lower bench with the heater cut out
Bench D upper bench supports, finished side
facing front
Bench E flush with left wall and left side of
bench A
Note: Securing benches to side walls with 3” screws
through the bench framing will add strength to the
sauna.
Note: Bench D one side of the bench is capped, while
the others have exposed framing. This bench should
be installed with the capped side facing the front of
room, on the upper bench supports.
Leg Support Installation
19. Located the 4 support legs. 3 will have an adjustable
foot and 1 will not.
20. The 3 with adjustable foot will be installed on the
lower platform 2 in front of the heater in each corner
with the notch side facing the front. 1 on the left side
of the platform in the interior corner.
21. Adjust feet with 17mm wrench to correct height, using
a level on top of the bench to make sure
bench is level.
22. Notch should be positioned with the finished
surface facing the front of the sauna.
2 Screws
from back
side

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23. Attach each leg with 2 screws (provided) to the front
of the lower bench.
Backrest Installation
24. Locate the backrest and remove the backrest
mounting hardware from the backside of the backrest.
The longest backrest will be installed on the back wall,
the other will be on the left wall.
25. Then temporarily invert the backrest with the LED
strip on the bottom and facing outward and connect
the low-voltage power cable from the back wall to the
LED lighting strip end. Connect the 12” LED jumper to
the other end of the LED strips. This will be used to
connect the left backrest.
NOTE: cut 2 pieces of wood to 8 3/8”
to use as a gauge block. Position
them on the upper bench to make
installation of the backrest easier.
26. Measure 20” from the top of the
bench to the top of the backrest. Making sure
backrest is level, fasten it to the wall through the
predrilled holes, using 2” screws (provided).
Note: If using gauge block carefully remove. Wood
plugs are provided to cover the exposed screw head.
Note: After installation there will be handprints,
debris, and dust. To clean Tika wood panels use a
damp microfiber cloth.
Heater Placement
27. The lower platform has a precut location for the
Himalaya heater.
Note: It will ease installation of the heater if your
electrician connects the power and high limit cable
before the heater is installed in the bench opening.
28. Carefully lower the heater through the lower bench
opening. Make sure the heater is level both front to
back and left to right. Adjust the feet with a 10mm
wrench and verify with a level.

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29. The Himalaya Heater must be installed with the logo
facing the front of the room. This is so the safety
sensor is in the correct location.
30. A licensed electrician should wire the heater according
to the specifications provided with the heater.
*Rocks will be placed after testing the heater.
*See Himalaya manual for heater installation.
Electrical / Heater Assembly
31. Defer to Himalaya installation manual for directions.
Glass Panel Installation
32. Uncrate and identify all the glass panels and hardware.
33. Hardware includes (1) Allen wrench, (4) Phillips head
screws (4) Allen head screws, (3) glass to glass hinges,
(12) gaskets.
34. Always use some type of clean covering or padding
between the glass panels and the floor or wall. Never
set the glass directly onto concrete or other hard
surfaces.
35. Outer panels A & D must be installed first; they can
stand alone. 2 people are needed for this process. 1
to install the glass panel and the other to lift the
ceiling panel.
36. Installer 1: Lift the front ceiling panel to allow
clearance for the glass panel.
37. Installer 2: Locate Panel (A), tilting the glass align the
bottom corner closest to the installer into the front
left base frame. Once aligned, tip the glass panel
forward until it is fully seated into the side panel and
base frame. Repeat the same process for glass Panel
D, in the right wall base panel, ensuring it is fully
seated into side panel.
38. Installer 1: Locate panel C. Holding glass on both sides
place bottom of glass into the front right groove.
Installer 2: Lift the front ceiling panel to allow
clearance for the glass panel.
39. Panels C & D should meet at the corner.

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40. Carefully lower the ceiling panel onto the glass panels
and bring both panels to the corner on the top and
bottom. Be careful not to damage the tongue or the
groove section of the panel. Make sure the front
ceiling corner seats securely into place.
Door Panel Installation
41. Locate the (3) glass-to-glass clamps hinges and the
(12) additional thicker gaskets. Mount clamp starting
in the upper right corner of glass panel (C), using the
thicker gaskets for installation.
42. Mount the glass-to-glass hinge over the hinge cut-outs
on panel C making sure that the hinge side (right side
of the hinge) is attached to Panel C and the left side of
the hinge attaches to Panel B (the door).
43. You must have a gasket separating the back plate
from the interior side of the glass and a gasket
separating the front plate from the exterior side of
the glass. Never clamp metal directly to glass.
44. Installer 1: should be holding door on both sides, may
need to use foot to hold in place.
45. Installer 2: will be using Allen key and Allen screws to
attach glass-to-glass hinge to door.
46. With the hinges in the open position, mount the
door, securing it to the top hinge first. Make sure
that the hinge is installed with the screw heads
facing toward the inside of the sauna room. Leave
the screws loose enough so that the hinges can be
repositioned once the door has been mounted.
47. Check and adjust the door and hinge positions so that
there is an even gap along the top edge, as well as the
entry edge of the door.
48. Tighten all screws and verify the door opens and
closes properly.

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Door Handle Installation
49. Locate the door handle box. Separate the handle using
the hex wrench to loosen the set screw found on the
side of the metal door assembly.
50. Once separated use a Phillips screwdriver
to separate the inner assembly.
51. There are 2 white washers that will sit on
either side of the glass door 1 on the inside
and 1 on the outside.
52. Take the provided screws and the door handle
assembly, insert the screws from inside the glass door
toward the outside through the precut holes.
53. Reconfirm the white washers are on either side of the
side of the glass door.
54. Using a screwdriver install the outside door handle
onto the screws from the outside and tightening the
bolt from the interior side of the door.
55. Be careful not to over tighten as this can cause
damage to the glass door.
56. Install the interior door handle onto the screws inside
the glass door. Tighten the set screws using the
provided hex wrench; careful not to over tighten.
Temp Sensor Installation
57. Locate predrilled hole in the front ceiling panel. It will
be in the front right corner. Feed the temp sensor
cable through the hole with 3-4 inches of cable
exposed.
58. Connect cable to the back of the sensor board.
59. Secure the sensor board to the ceiling.
60. Place the cover over the temperature sensor
board.
61. Remaining cable should run across the ceiling panel
and be connect the sensor cable to the CB box.

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SL2 Control Mounting
62. Feed cable from the hole in the ceiling panel (yellow
control cable access sticker) down to the first support
bar on the open panel on the right wall.
63. Use a flat-blade screwdriver to carefully pry the front
glass off the control body.
64. Install two of the shorter screws to the
control. Place a black plastic wing on the
end of each screw. Make sure black plastic
wings are horizontal to allow for T&G
installation. (Longer screws are not used)
65. Mount control on T&G board labeled with
yellow control cable access sticker.
66. Connect the cable on the back of the SL2 control to
the cable fed through the ceiling panel.
67. Install the T&G panel w/ installed SL2 control. You may
need to pull extra wire up from the ceiling panel.
68. Place glass cover on mounted SL2 control. Starting
with aligning the top of the glass with the top of the
mounted control. Lower the glass cover and press
firmly with 2 fingers at the base cover should snap into
place.
69. All electrical connections should be completed by a
qualified electrician. Complete the following steps
after electrical connection has been established.
Once electrical is connected test SL2 control and lighting.
70. Press the room light button to ensure backrest lights
turn on.
71. Press the ON button and allow heater to run for 15
seconds, then turn off.
72. Put your hands close to the elements (DO NOT
TOUCH) to feel if all three elements are heating, or
have the electrician verify the correct Amp draw for
your heater.

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73. Confirm everything is working. After confirmation, do
the final installation of the control and see Himalaya
installation manual for complete heater instructions.
Note: At this point, prior to the completion of the
room assembly, apply power to the heater and control
panel to verify that the proper wiring connections
have been made throughout the sauna assembly
process.
Corner Cap / Final Corner Panel Installation / Finishing Trim
74. Place the remaining back corner panel into position
using the base groove as a guide and make flush the
entire length of the corner panels before securing
them together using the pre-drilled holes and 3”
screws provided. Route the control panel cable
through the hole in the remaining top plate.
75. Locate exterior corner trim pieces and match the
numbered corner trim piece to the corresponding
numbered sauna frame corners. Position each corner
trim piece into place and attach with 1-1/2” brad nails
or finish nails.
76. Locate top trim (fascia trim) pieces. Start with the side
and cut the two side pieces to length and attach with
brad or finish nails.
77. Cut the front top trim (fascia trim) piece so that it
covers the front ends of both side trim pieces and
attach with brad or finish nails.
78. Cut to length the interior ceiling trim (cover molding)
pieces, starting with the back wall and then the two
side walls and secure them into place with brand or
finish nails. Screw head buttons are included for
backrest. A light hammer tap may be needed, and glue
can help secure the buttons.

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AUDIO OPERATION
Audio Power On
▪Press icon to toggle On or Off the Bluetooth
System.
Note: The control does not have to be active for
Sound System to operate.
Pairing
▪Refer to your mobile device to pair to the unit.
▪The device name is Sauna360 Audio
Operation
▪All operations are controlled by the mobile device
▪Volume is controlled by the mobile device
▪
WARNING: Apple will not warranty your Apple product if used
at operating temperatures of 32oF or below and 95oF and
above. The recommended operating temperature is 32oF to
95oF to fall into the warranty. Check with any other device
manufacturers for operation temperatures before using the
device in the Sauna.

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SL2 (SAUNALOGIC 2) CONTROL OPERATION
Operating Instructions for Heater
Default settings for temperature are preset to 194°F, the bath time is set to 60
minutes and 0-minute delay to start to heat. These settings are adjustable (as
described below) from 119°F to 194°F. Length of sauna can be set from 0 to
60 minutes. The time delay before start can be up to 24 hours. Any changes
are remembered by the heater for your next bath. Should the heater power
be lost then restored, the settings will return to their default values.
Starting Sauna Heater Immediately
Press the control POWER icon to turn on the sauna control and heater.
The room temperature will be displayed on the control. The heater will turn
on and begin heating the room to current set points. Once the set
temperature is reached inside the room, the control will turn the heater on
and off again as needed to maintain the desired temperature. At the end of
the selected time (60 minutes maximum), the control will turn itself off and the control display
will turn off.
Setting the Time and Temperature
To set the sauna length time, press the icon and then press the “"+" or "-" icons to increase or
decrease time for desired setting. The maximum of time is 60 minutes.
To set the temperature, press the and next "+" or "-" icons to increase or decrease
temperature for desired setting. The maximum temperature is 194°F (90°C).
Note: Typical sauna bathing set-point temperature is 150°F to 165°F on the control.
Pre-Set Delayed Start
Press the icon and delay time will appear in the display and will toggle between “dlay” the
amount of time remaining. The maximum of time is 24 hours. If no delay is desired, press
icon to toggle off the function.
Operating Instructions for Lighting
Press icon to cycle through lighting options. Press and hold the icon for 3 seconds to
turn off the lights. Lights will turn off automatically 10 minutes after sauna cycle is completed.
Color sequence –White –Red –Green –Blue –Yellow –Aqua –Purple –Rotation of Colors –Off
Choose the color of choice. Set lighting brightness. The brightness will be on display for 3
seconds. Press the “+” or “-“icon to increase or decrease the light setting. Setting options are 25,
50, 75, and 100% light output.

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COMMONLY ASKED QUESTIONS
CLEANING
Yes, cleaning is needed. Perspiration and dirt may absorb into the
wood, so periodic cleaning is needed. Scrubbing the benches and
floorboards with a stiff brush and mild detergent is normally
sufficient. Light sanding with 220 grit is another option.
INTERIOR PAINT OR STAIN
You should never apply any paint or stain to the interior of your
sauna! Off-gassing from these products could be harmful to your
health when the room is heated.
The only approved product to use on the interior of your sauna is 100% Pure Paraffin Oil. Pure
Paraffin Oil is odorless and will add an invisible layer of protection from moisture stains and can
be applied to walls or bench tops. Paraffin oil can also be used on the exterior surfaces but will
darken softer woods like cedar. See your sauna retail dealer for details.
PATCHING NAIL HOLES
Small nail holes from attaching your trim can be easily filled by using a quality brand of wood
filler that matches the wood you are using followed by a light sanding with 220 grit sandpaper.
Small holes or cracks can also be patched by filling with white glue then sanding with 220 grit
sandpaper before the glue dries. The sanding dust will stick to the glue and fill the void, providing
a nearly invisible patch.
TROUBLESHOOTING
Error Codes on SL2 Control
Sn = Means the sensor is not connected to the CB box. Check the connections between sensor
and box
HL = Means the High Limit switch in sauna heater is not connected to the CB box. Check the
connections between heater and box.
JP = Means a jumper CN 6 is missing from the Main PCA in CB box.
Pre-Heat = Means there is no sensor connected to the CB or the temperature is below 8°F.
*Prior to calling, please have the Model, Type Number, and Serial Number from room available.

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If you have any questions during the installation of your sauna, please contact your local dealer
or our tech support team.
Toll Free: 1-888-780-4427
E-mail: [email protected]
Date of Purchase: _______________________ Place of Purchase:
____________________________
Enjoy Your Sauna!
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to be featured on our page.
www.finnleo.com • 575 East Cokato St., Cokato, MN 55321
Record Serial Number Here
Link to Finnleo Manuals

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