I NSTA L L AT I ON I N ST R UC T I O N S
SP250/300/350
SP250/300/350
DISCLAIMER
Spectrum Infrared and its affiliated corporations and
subsidiaries (collectively “Spectrum”), intend to make this
manual accurate and complete. However, Spectrum makes no
claim that the information contained herein covers all details,
conditions, or variations, nor does it provide for every possible
contingency in connection with the installation or use of this
product. The information contained in this document is subject
to change without notice or obligation of any kind. Spectrum
makes no representation of warranty, expressed or implied,
regarding the information contained herein. Spectrum assumes
no responsibility for accuracy, completeness or sufficiency of
the information contained in this document.
Spectrum Plus is a registered trademark of Spectrum Products,
LLC. All rights reserved.
Installation Instructions
IMPORTANT!:The SP250/300/350 heaters are designed to
be mounted between a wood stud wall that’s 16” on center.
Minimum T&G thickness is 11/16”.
NOTE: Spacings - Minimum spacings between the heaters
shall be maintained for safe operation of the equipment when
installed in accordance with the National Electric Code,
ANSI/NFPA 70.
NOTE: When selecting a Listed 120 Vac Receptacle for use as
the main power source for the SPC heaters (power supply),
make sure that AC Receptacle is rated for the heater installing.
In the U.S., the equipment shall be installed per the applicable
requirements of the National Electrical Code, ANSI/NFPA 70.
In Canada, the equipment shall be installed per the applicable
requirements of the Canadian Electrical Code, CSA C22.1.
IMPORTANT SAFETY INSTRUCTIONS
WARNING: A WARNING alerts you to the possibility of
serious injury or death if you do not follow the instructions.
CAUTION: A CAUTION alerts you to the possibility of
damage or destruction of equipment if you do not follow the
corresponding instructions.
WARNING: Failure to read, thoroughly understand, and
follow all instructions can result in serious personal injury,
damage to equipment, or voiding of factory warranty! It is the
installer’s responsibility to make sure all components are
properly assembled and installed using the instructions
provided.
WARNING: Failure to provide adequate structural strength
for this accessory can result in serious personal injury or
damage to equipment! It is the installer’s responsibility to
make sure the structure to which this accessory is attached
can support the weight of all equipment.
WARNING: Use this heater only for its intended use as
described in these instructions. Do not use attachments not
recommended by the manufacturer.
WARNING: Professional installation required.
--SAVE THESE INSTRUCTIONS--
SP250/300/350
HEATER DIMENSIONS & SPACING
Installation Instructions
Installation Instructions
LAYOUT
Sauna
Size
3x3x7
4x3x7
4x4x7
5x3x7
5x4x7L
5x4x7
5x5x7
5x6x7
5x7x7
5x8x7
5x9x7
5x10x7
6x5x7
6x6x7
6x7x7
6x8x7
6x9x7
6x10x7
Back
Wall
2
3
3
4
4
4
4
4
5
6
7
8
5
5
5
6
7
8
Side
Wall
2
2
2
2
3
4
5
6
5
5
5
5
5
6
6
6
6
6
Bench
Front
1
0
1
1
1
1
1
1
2
3
3
3
2
2
2
3
3
3
0
1
1
1
1
1
1
1
1
0
0
0
0
0
1
0
0
0
Total
Heaters
5
6
7
8
9
10
11
12
12
14
15
16
12
13
14
15
16
17
Cubic ft
63 ft³
84 ft³
112 ft³
105 ft³
140 ft³
140 ft³
175 ft³
210 ft³
245 ft³
280 ft³
315 ft³
350 ft³
210 ft³
252 ft³
294 ft³
336 ft³
378 ft³
420 ft³
Watts / Amps /
Volts
1500 / 12.5 / 120
1800 / 15 / 120
2100 / 17.5 / 120
2400 / 20 / 120
3150 / 13.2 / 240
3500 / 14.6 / 240
3850 / 16.1 / 240
3150 / 17.4 / 240
4550 / 19 / 240
4900 / 20.5 / 120
5250 / 22 / 240
5600 / 23.4 / 240
4200 / 17.4 / 240
4550 / 19 / 240
4900 / 20.5 / 240
5600 / 22 / 240
5600 / 23.4 / 240
5950 / 24.8 / 240
Required
Circuits
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
Traditional
Heater*
N/A
N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
*Traditional heaters can only be used in combination with Spectrum Plus IR heaters. Adding carbon panels to a
traditional heater sauna voids all warranties.
CONTROLLER & SENSOR
PARTS INCLUDED
COMPONENTS NEEDED FOR OPERATION
OPTIONAL PARTS PER CUSTOM CONFIGURATION (NOT INCLUDED)
SP250/300/350
Installation Instructions
CONFIGURATION EXAMPLES
NOTE: Configuration examples are based on achieving 170-degree temperatures without utilizing a traditional
heater (combination). For combination saunas, the number of infrared panels can be lowered if the primary goal
is to use both the infrared and traditional heaters at the same time.
NOTE: To achieve the ultimate sauna experience, maximize your infrared and traditional heater quantities. The
sauna temperature can always be adjusted to lower the temperature.
SP250/300/350
Installation Instructions
STUD LAYOUT
PLANNING YOUR STUDS
Carefully plan your stud configuration. Your
studs must coincide with your heater layout
as each heater requires a minimum 3” depth
for proper installation and ventilation.
Common 16” on center stud spacing can be
used for most builds. For uncommon spacing
or angles, adjust your studs to accommodate
each heater.
*Each heater should be 2” above the seating
surface of the sauna bench. This calculation
should be made during the stud planning
process.
**This is an example of stud placement. Your
configuration may require additional bracing
based on bench configurations or local
building codes.
JUNCTION BOX LOCATIONS
JUNCTION BOX LOCATIONS
A metal junction box should be located under
each heater for safety and code compliant
access.
The top connection to your
junction box should be
metal conduit pipe. Heater
connections can be
standard flexible conduit.
*Use 4” junction boxes for
easier wiring access.
**Use a minimum of 12awg
cable for best heater
performance.
POWER SUPPLY LOCATION
POWER SUPPLY LOCATION
The power supply unit should be placed in an
accessible location within 118” of the sauna
controller.
For infrared only saunas, the power supply
can be mounted within the sauna in a
covered location (e.g., under a removable
benchtop).
For infrared and
traditional
applications, the
power supply must be
mounted outside of
the sauna (e.g. next to
the subpanel).
There will need to be a 1.5” diameter access
hole made to run the power cable to the wall
outlet.
POWER SUPPLY HEATER CONNECTIONS
WIRES TO POWER SUPPLY
Carefully follow the wiring schematic to
ensure proper wire configuration.
Use the proper gauge wiring per heater load
and run length.
*To ensure low EMI/EMF readings, all
heaters must be wired with metal flexible
conduit.
**For access, make the tops of your sauna
benches removable for wiring access in the
future.
.
Installation Instructions
SP250/300/350
DATA CABLE FOR CONTROLLER
CONTROLLER DATA CABLE
Your controller location should be within 118”
of the red power supply box.
Connect your data cable to the power supply
and secure the end of the wire to the stud
location where your controller will be
mounted.
*We recommend using a medal pipe or
channel to run this cable and your
temperature sensor for easy replacement if
necessary.
**Your data cable can be extended on site to
obtain an additional 60”.
.
TEMPERATURE SENSOR
TEMPERATURE SENSOR CABLE
Your temperature sensor should be within
118” of the red power supply box.
Connect your sensor wire to the power supply
and secure the end of the wire to the stud
location where your sensor will be mounted.
*Wires don’t often fail, however we
recommend using a medal pipe to run this
cable and your controller data cable for easy
replacement if necessary.
**Your temperature sensor cable can be
extended on site to obtain an additional 100”.
SP250/300/350
Installation Instructions
HEATER CONNECTIONS
SECURE SENSOR AND CONTROL WIRE
Secure both wires to the adjacent stud to
connect to components in the future.
.
HEATER FOIL VAPOR BARIER
VAPOR BARRIER INSTALLATION
For the best heater performance, install vapor
barrier in each heater cavity. This step is not
required but recommended.
*Insulation can be added behind the heater
for added thermal retention. Only fire
retardant/ high heat insulation (rock wool)
should be installed.
.
Installation Instructions
INSULATION
INSTALL INSULATION
Place insulation in all stud sections except for
heater pockets.
*Insulation can be added behind the infrared
heaters by using rockwool that is fire
retardant / resistant.
**For outdoor applications or an outdoor
exposed wall, use the highest R value within
your budget.
.
FISH WIRE
FISH WIRE
Run your fish wire from the Junction box to
your heater cavity.
Installation Instructions
VAPOR BARRIER
FINAL VAPOR BARRIER
Apply your final application of vapor barrier.
INSTALL CLADDING
CLADDING INSTALLATION
Install cladding, cutting the boards to coincide
with your heater pockets/ layout.
*Cladding can be installed either vertically or
horizontal without effecting the integrity of the
sauna heaters.
**Fish wire should be secured to the heater
cavity.
.
Installation Instructions
INSTALL HEATER
INSTALL HEATER AND WIRE
Place your Spectrum Plus™ heater into the
cavity. Route the heater power wires into
your junction box. Make your power
connections.
.
INSTALL HEATER COVER
INSTALL HEATER COVER
Install the lower cladding and heater grill with
(4) wood screws.
WOOD FRAME
INSTALL WOOD FRAME
Place your Spectrum Plus™ heater into the
cavity, connect your wires, and secure using
(4) wood screws or finishing nails.
.
BACKREST EXAMPLES
*Backrests can be installed on the surface of the heater frame, no gaps needed.
**For proper support, use additional bracing between each heater.
***For optimal performance, limit covering heaters by more than 50%.
CONTROLLER CASE
OPEN THE CONTROLLER CASE
Using a pick tool or a small flat head screw
driver push down on the clips found on top of
the controller’s case.
Tip: Push at an angle to ensure the screw
driver doesn’t push into the screen’s circuit
board.
INSTALL CONTROLLER
INSTALL CONTROLLER
Follow the control panel mounting instructions
to ensure proper installation.
Using a pick tool or a small flat head screw
driver push down on the clips found on top of
the controller’s case.
.
MOUNT TEMPERATURE SENSOR
TEMPERATURE SENSOR
Using provided parts, mount your
temperature sensor.
V2 POWER SUPPLY
V2 POWER CONNECTION
V2 CONTROLLER WIRING
V2 TEMPERATURE SENSOR
V2 LIGHTING (12V)
V2 AUDIO
V2 HEATER WIRING
V2 HEATER WIRING WITH EXTENSION BOX
V2 EXTENSION BOX WIRING
POWER SUPPLY MEASUREMENTS
INDOOR POWER SUPPLY LOCATION (INFRARED ONLY)
OUTDOOR POWER SUPPLY LOCATION (INFRARED ONLY)
INDOOR POWER SUPPLY LOCATION (COMBINATION)
OUTDOOR POWER SUPPLY LOCATION (COMBINATION)
INDOOR VENTILATION LOCATION (INFRARED ONLY)
OUTDOOR VENTILATION LOCATION (INFRARED ONLY)
INDOOR VENTILATION LOCATION (COMBINATION)
INDOOR VENTILATION LOCATION (COMBINATION)
COMBINATION AIR 360™
PARTS LIST
Part
SKU
UL Listed Spectrum Plus infrared heater
Steel frame with temperature resistant coating
Western Canadian cedar frame bezel
Frame bezel wood screws
Commercial Grade V2 Power Supply
IR Power Supply Extension Box
120v 15a power cable
120v 20a power cable
240v 15a power cable
V2 Controller
V2 Controller with WiFi
V2 Controller data cable (3m)
Temperature Sensor
Temperature Sensor Mounting Plate & Clip
C14 Jumper Cable (1m)
C14 Connectors – rewireable
4-Pin Audio Cable
4-Pin Lighting Cable
12v LED RGB Puck Lights
12v LED RGB Strip Lights
6” Marine Grade Audio Speakers
Open / Close Vent
Air Return Grill
Air 360° Mechanical Fan System
SP250 | SP300 | SP350V | SP208V
SPSF-2
WCCF-R1
FBWS-1
V2PS
V2-EXT
15PC
20PC
240PC
V2PS
V2PS-W
V2DC
V2TS
V2TSM
6EC
C14-1
AC-180
V2PC
LEDBRGB
LEDSTRP
SPKR6M
FDAIRV
FDAIR1
FDAIR360
ADDING A TRADTIONAL HEATER
COMBINATION SAUNA
Spectrum Plus™ infrared sauna heaters are
UL listed and can be safely added with a
traditional steam heater.
The sauna installation configuration will
change.
POWER SUPPLY LOCATION
EXTERIOR INSTALLATION
Mount infrared power supply outside the
sauna.
Power supply can be placed into an
accessible, well-ventilated cabinet or
mounted to the exterior of the sauna.
For outdoor applications a waterproof junction
box must be installed.
CONTROLLER LOCATION
EXTERIOR INSTALLATION
You must mount our infrared controller on the
outside of the sauna when combining a
traditional steam heater.
For outdoor applications, the controller must
be covered.
HEATER LOCATION
DISTANCE BETWEEN HEATERS
The minimum distance between a Spectrum
Plus™ infrared heater and a traditional heater
is 12”.
Do Not install a Spectrum Plus™ infrared
heater above any traditional heater.
INFRARED TEMPERATURE SENSOR
LOCATION OF SENSOR
When pairing Spectrum Plus infrared heaters
with a traditional heater, place the
temperature sensor in the ceiling the farthest
from the traditional heater.
Do Not install the temperature sensor
withing 24” of a traditional heater.
VENTALATION
LOCATION OF VENTALATION
Follow manufacturers guidelines for
placement of traditional heater ventilation.
Infrared ventilation is best mounted on the
opposite side of the sauna in the ceiling or
back wall.
TROUBLESHOOTING
My power supply is plugged in but there is no
power to the controller.
My breaker was not interrupted, and I still do not
have power to the controller?
Check the power supplies breaker located on the
side. If the button is lose, there was not an
interruption. If the button clicks, there was an
interruption in power, reset by pushing in.
Check the power supplies high limit switch located on
the side. Remove the red cap. If the button is lose,
there was not an interruption. If the button clicks,
there was an interruption in power, reset by pushing
in.
My controller turns on when I plug the sauna in
but then it shuts right off.
The V2 Controller needs to be reactivated by placing
your finger on the screen for 2-3 seconds. Refer to
the controller operating instructions.
My speakers crack when music is playing.
Your positive and negative are reversed. Swap the
cables to solve the issue.
I have power to my heaters, but the heater is not
turning on.
Spectrum Plus infrared heaters can take between 5-7
minutes to start feeling heat. If after 5-7 minutes
without the touch of heat check your Neutral and
Power connections. Contact manufacturer.
My infrared temperature sensor and the
traditional heater sensor do not provide the same
reading.
Infrared sauna temperature sensors are calibrated
differently. Infrared sensors are calibrated using 5k
NTC. Whereas sensors for traditional heaters can
vary based on manufacturer.
My power supply immediately shuts off and the
breaker pops.
Check wiring and load limits. Refer to your wiring
schematic and amperage requirements.
Why is there a slight smell coming from my
infrared heaters?
This is completely normal and will subside within the
first 2-3 sessions of using the heaters.
INSTALLATION FAQ
Can I choose to use less heaters than what’s
recommended?
The recommended heater quantities are based on
reaching and maintaining 160-170 degrees
Fahrenheit. If you use less heaters, the time it takes
to reach and maintain 165-170 F will increase.
If I’m using a traditional heater, can I use fewer
infrared heaters?
If your bathing goal is to use both at the same time,
you can use less infrared heaters and still maintain
therapeutic heat. If your bathing goals are to have
the ability to reach therapeutic heat while only using
infrared heat only, you must follow recommendations.
Can I operate a traditional heater at the same time
as infrared?
Spectrum Plus™ UL listed infrared heaters were
specifically engineered for this purpose. Unlike
carbon heaters, which will fail prematurely under high
heat, moisture and steam, Spectrum Plus™ heaters
will not.
Can I sit against the infrared heaters?
Spectrum Plus™ heaters were specifically
engineered to project infrared heat 360 degrees
using a half octagon reflector. This allows for the heat
to be evenly distributed to minimize hot spots. This
allows users the ability to sit against the heater. For
the ultimate bathing experience, purchase an
ergonomic backrest.
Where is the best place to mount the temperature
sensor?
The temperature sensor must be mounted near the
controller and at least 6” down from the ceiling. Heat
rises, therefore mounting 6” from the ceiling will
render the most accurate results.
If I use a traditional heater with infrared, why can’t
I mount the controller inside?
Can I mount the power supply inside the sauna?
A traditional heater produces higher heat along with
steam/moisture. Electronic components have a
difficult time operating and keeping reliability
standards under such harsh conditions.
For infrared only sauna builds, the power supply and
controller can be mounted inside of the sauna.
SP250/300/350
Installation Instructions
USA/International 6231 Mcleod Dr. STE A, Las Vegas, NV 89120
8882-002024 Rev4
www.spectrumproducts.com
01/24
Spectrum Plus infrared elements are UL listed
under UL – UBJY2.E65554
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