Harvia XENIO CX45J User manual

04052022/Y05-0917
HARVIA XENIO CX45J
Control unit

These instructions for installation and use are
intended for owners of saunas, heaters and control
units, persons in charge of managing saunas,
heaters and control units, and for electricians
responsible for installing heaters and control units.
Once the control unit is installed, these instructions
of installation and use are handed over to the owner
of the sauna, heater and control unit, or to the
person in charge of maintaining them.
CONTROL UNIT HARVIA XENIO (CX170)
Control unit's purpose of use: the control unit is
meant for controlling the functions of a sauna
heater. It is not to be used for any other purpose.
Congratulations on making an excellent choice!
CONTENTS
1. HARVIA XENIO ........................................................... 3
1.1. General .............................................................. 3
1.2. Technical Data.................................................... 4
1.3. Troubleshooting .................................................. 4
2. INSTRUCTIONS FOR USE............................................. 5
2.1. Using the Heater ................................................. 5
2.1.1. Heater On .................................................. 5
2.1.2. Heater Off.................................................. 5
2.2. Changing the Settings.......................................... 5
2.3. Using Accessories ............................................... 5
2.3.1. Lighting ..................................................... 5
2.3.2. Ventilation ................................................. 5
2.3.3. Safety switch ............................................. 5
2.4. Control panel lock ............................................... 8
2.5. Remote control ................................................... 8
2.6. Power saving mode ............................................. 8
3. INSTRUCTIONS FOR INSTALLATION ............................. 9
3.1. Installing the Control Panel ................................... 9
3.2. Installing the Power Unit .................................... 10
3.2.1. Electrical Connections .............................. 10
3.2.2. Power Unit Fuse Faults .............................. 10
3.2.3. Power extension unit LTY17 (optional) ........ 10
3.3. Installing the Temperature Sensor ....................... 13
3.3.1. Installing the Temperature Sensor WX232 ..... 13
3.4. Resetting the Overheat Protector......................... 13
4. SPARE PARTS .......................................................... 14

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1. HARVIA XENIO
1.1. General
The purpose of Harvia Xenio control unit is to con-
trol an electric sauna heater within an output range
of 2.3–18 kW. The control unit consists of a con-
trol panel, a power unit and a temperature sensor.
See figure 1.
The control unit regulates the temperature in the
sauna room based on information given by the sen-
sor. The temperature sensor and the overheat protec-
tor are located in the temperature sensor box. The
temperature is sensed by an NTC thermistor and the
overheat protector can be reset ( 3.4.).
Figure 1. System components
Temperature sensor WX232
Heater
Control panel
Power unit
Sauna room
Safety switch
Dry area
Main switch
Data cable
The control unit can be equipped with a safety
switch (see figure 1). The control unit can be used
to preset the start of the heater (pre-setting time).
See figure 3a.
Sauna room Dry area
Temperature sensor WX232
Control panel
Heater
Power unit
Main switch
Data cable

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Description/Beschreibung Remedy/Abhilfe
E1 Temperature sensor's measuring
circuit broken.
Check the red and yellow wires to the temperature sensor and their
connections (see figure 6) for faults.
E2 Temperature sensor's measuring
circuit short-circuited.
Check the red and yellow wires to the temperature sensor and their
connections (see figure 6) for faults.
E3 Overheat protector's measuring
circuit broken.
Press the overheat protector's reset button ( 3.4.).
Check the blue and white wires to the temperature sensor and their
connections (see figure 6) for faults.
E9 Connection failure in the system. Switch the power off from the main switch (figure 1). Check the data
cable, sensor cable and their connections. Switch the power on.
1.2. Technical Data
Control panel:
• Temperature adjustment range: 40–110 °C.
• On-time adjustment range: family saunas
1–6 h, public saunas in apartment buildings
1–12 h. For longer operating times consult the
importer/manufacturer.
• Pre-setting time adjustment range: 0–12 h.
• Control of lighting and fan
• Dimensions: 85 mm x 24 mm x 110 mm
• Length of data cable: 5 m (10 m extension
cables available, max. total length 30 m)
Power unit:
Supply voltage and max. loads:
• 50/60Hz
• 200 V 1-Phase, Max load 9 kW
• 200 V 1-Phase (two separated circuits) Max
load 18 kW
• 200 V 3-Phase, Max load 15,5 kW
• Max. load can be increased up to 36 kW with a
power extension unit LTY45J
• Lighting control, max. power: 100 W, 200 V 1N~
• Fan control, max. power: 100 W, 200 V 1N~
• Dimensions: 364 mm x 73 mm x 267 mm
• Terminal for a safety switch
Sensors:
Table 1. Error and status messages. Note! All service operations must be done by professional
maintenance personnel.
STATUS MESSAGES / ZUSTANDSMELDUNGEN
SAFE Safety switch circuit is open Remove the object from atop the safety switch
rESt Pause time active -
rc on Remote control activated -
• The temperature sensor is equipped with
a resettable overheat protector and a
temperature-sensing NTC thermistor (22 kΩ/
T=25 °C).
• Weight: 175 g with leads (ca 4 m)
• Dimensions: 51 mm x 73 mm x 27 mm
1.3. Troubleshooting
If an error occurs, the heater power will cut off and
the control panel will show an error message ”E
(number)”, which helps troubleshooting the cause
for the error. Table 1.
Note! All service operations must be done by pro-
fessional maintenance personnel. No user-service-
able parts inside.

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2. INSTRUCTIONS FOR USE
Indicator lights
Menu and navigation buttons
Operating buttons
Display
Temperature
On-time
Value decrease *)
Mode change
Value increase *)
Heater on/off
Lighting on/off
Fan on/off
*) Press and hold to make the
value change faster.
Figure 2. Control panel
2.1. Using the Heater
When the control unit is connected to the pow-
er supply and the main switch (see figure 1) is
switched on, the control unit is in standby mode
and ready for use. I/O button’s background light
glows on the control panel.
WARNING! Before switching the heater on always
check that there isn’t anything on top of the heater
or inside the given safety distance.
2.1.1. Heater On
Start the heater by pressing the heater
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.
If the heater efficiency is suitable and the sauna
has been built correctly, the sauna takes no more
than an hour to warm up.
2.1.2. Heater Off
The heater turns off and the control unit switches
to standby-mode when
• the I/O button is pressed
• the on-time runs out or
• an error occurs.
NOTE! It is essential to check that the control unit
has cut off power from the heater after the on-time
has elapsed, the dehumidification has ended or the
heater has been switched off manually.
2.2. Changing the Settings
The settings menu structure and changing the
settings is shown in figures 3a and 3b.
The programmed temperature value and all values
of additional settings are stored in memory and will
also apply when the device is switched on next
time.
2.3. Using Accessories
Lighting and ventilation can be started and shut
down separately from other functions. Figure 6.
2.3.1. Lighting
The lighting of the sauna room can be wired so that
it can be controlled from the control panel. (Max
100 W.)
Switch the lights on/off by pressing the
control panel button.
2.3.2. 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 control
panel button.
2.3.3. Safety switch
Safety switch refers to e.g. Harvia SFE, a safety
device installed above or integrated to the heater,
preventing the heater from heating should any
object (e.g. towel, piece of clothing) drop or be
placed on top of the heater and cause a fire hazard.
The safety switch is connected to the control unit
according to its manual. See also figure 6.

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Figure 3a. Settings menu structure, basic settings
Press the MENU button to open the settings menu.
Sauna room temperature
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
40–110 ºC.
Press the MENU button to access the next setting.
Remaining on-time
Press the + and – buttons to adjust the remaining on-time.
Pre-setting time (timed switch-on)
• Press the + button until you overstep the maximum on-time. Temperature indicator light
switches off. Pre-setting time symbol blinks on the screen.
• Select the desired pre-setting time using the – and + buttons. The time changes in 10
minute steps.
Press the MENU button to exit.
Basic mode (heater on)
The top row shows the sauna room temperature. The bottom row shows the remaining on-time.
Both indicator lights glow.
Basic mode (pre-setting time running, heater off)
The decrease of remaining pre-setting time is shown until zero appears, after which the heater is
switched on.
BASIC SETTINGS/GRUNDEINSTELLUNGEN
Example: the heater will be on for 3 hours and 40
minutes.
Example: the heater will start after 10 minutes.

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Open the settings menu by simultaneously pressing the locations of the buttons –, MENU
and + (see figure 2). Press for 5 seconds.
The buttons do not glow when the control unit is in standby mode.
Setting the remote use
The remote use setting can be changed with the — and + buttons. The options are "OFF"
(remote control disabled), "SAFE" (safety switch).
See section 2.3.3. for further information.
Confirm the selection with the MENU button.
Setting pause time. Enable or disable the pause time feature with buttons + and -. Pause
time must be enabled, if the control unit is remotely started by an automated schedule
(e.g. a weekly timer).
Press the MENU button to access the next setting.
Maximum on-time
The maximum on-time can be changed with the – and + buttons. The range is 1–12 hours
(6 hours*)).
Press the MENU button to access the next setting.
Sensor reading adjustment
The reading can be corrected by +/- 10 units. The adjustment does not affect the meas-
ured temperature value directly, but changes the measuring curve.
Press the MENU button to access the next setting.
Memory for power failures
The memory for power failures can be turned ON or OFF *).
• When turned on, the system will start again after a break in electricity.
• When turned off, the break will shut the system down. I/O button must be pressed to
restart.
• The safety regulations for memory usage vary from region to region.
Control unit standby
I/O button’s background light glows on the control panel.
ADDITIONAL SETTINGS/WEITERE EINSTELLUNGEN
Example: the heater will be on for 6 hours from the start.
(Remaining on-time can be changed, see figure 3a.)
*) Factory setting

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Press the MENU button to access the next setting.
Sauna dehumidifying interval
The sauna dehumidifying interval can be turned ON or OFF*). The interval will begin when
the devices are switched off from the I/O buttons or when the set on-time runs out. During
the interval
• the heater is on
• the sauna room temperature is set at 40 °C.
• If a fan is connected to the control unit, it will also be on.
The length of the interval is 45 minutes. When the time runs out, the devices turn off
automatically. The interval can also be stopped manually at any time by pressing the I/O
button. Dehumidifying helps to keep your sauna in a good condition.
Press the MENU button. The control unit switches to standby-mode.
*) Factory setting
Figure 3b. Settings menu structure, additional settings
Sauna
dehumidifying
in progress
2.4. Control panel lock
Press and hold the heater and
light buttons for three seconds.
-CL- is shown on the display.
Panel lock can be activated only
in standby mode. Panel lock also
prevents remote start.
2.5. Remote control
According to the product standard IEC/EN 60335
-2-53 regulating electrical sauna heaters, a control
unit can be used to remotely control the heater
once the heater is equipped with a secure switch
(safety switch).
Using with a safety switch: the heater can be
turned on remotely, if the safety switch circuit is
closed. If the circuit is open, "SAFE" is displayed
and the heater will not start.
Pause time: These features are limited by a pau-
se time that prevents the heater from turning on
if it has been less than 6 hours since the heater
was last turned off. Trying to remotely turn the
heater on during the pause time period (6 hours),
text ”rESt” is displayed. The heater can be remotely
started after the pause time has elapsed and ”rc”
is displayed.
Memory for power failures: the control unit resu-
mes operation, if the remote switch has remained
in ON position.
Preset time: if the control unit is on preset delay
time, it cannot be controlled with a remote switch.
After the preset delay has passed and the heater
is turned on, it can be turned off with a remote
switch.
Dehumidifying: when the heater is turned off re-
motely and dehumidifying is enabled, dehumidify-
ing starts and cannot be stopped remotely. When
dehumidifying is in progress and a safety switch
is used, the heater can be turned on remotely. If a
door switch is used, the heater cannot be remotely
started, as the remote use mode must be re-activat-
ed by pressing and holding the control unit's heater
button for three seconds.
2.6. Power saving mode
If no buttons are pressed in 30 minutes, power
saving mode is activated. Only the heater button
(and "rc on", if remote use mode is active) is lit.

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3,5 x 15 mm
67 mm
96 mm
3,5 x 15 mm
1.
A
B
2.
3.
4.
1.
2.
3.
4.
3. INSTRUCTIONS FOR INSTALLATION
The electrical connections of the control unit
may only be made by an authorised, professional
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 come 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
The control panel is splashproof and has a small
operating voltage. The panel can be installed in the
1. Thread the data cable through the hole in the back cover.
2. Fasten the back cover to a wall with screws.
3. Push the data cable to the connector.
4. Press the front cover into the back cover.
Figure 4. Fastening the control panel
washing or dressing room, or in the living quarters.
If the panel is installed in the sauna room, it must
be at the minimum 500 mm safety distance from
the heater and at a maximum height of one metre
from the floor. Figure 4.
Conductor tubing (ø 30 mm) inside the wall struc-
ture allows you to thread the data cable hidden
within the wall – otherwise the installation will have
to be on the wall surface. We recommend you to
install the control panel embedded in to the wall and
far away from possible splashes.

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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 >0 ºC. 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 power unit into the wall,
since this may cause excessive heating of the in-
ternal components of the unit and lead to damage.
See figure 5.
3.2.1. Electrical Connections
Figure 6 shows the electrical connections of
the power unit. For more detailed installation
instructions see the instructions for installation and
use of the selected heater model.
Figure 5. Opening the power unit cover and mounting the unit to a wall
3.2.2. Power Unit Fuse Faults
Replace a blown fuse by a new one with the same
value. The placement of the fuses in the power unit
is shown in figure 6.
• If the fuse F2 for the electronic card has
blown, there is likely a fault in the power unit.
Service is required.
• If the fuse in the line F1, F3 has blown, there
is a problem with lighting or fan. Check the
wiring and functioning of lighting and fan.
3.2.3. Power extension unit LTY45J (optional)
The maximum load of control unit can be increased
by 18 kW by using power extension unit LTY45J.
It is controlled using terminals A1, A2, A3 and A4.
The power extension unit includes detailed instruc-
tions of installation.

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Figure 6. Electrical connections

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Figure 7. The place of the temperature sensors in connection with wall-mounted heaters
WX232
150 mm
100 mm
1100 mm
100 mm
WX232
Temperature sensor
Figure 8. The place of the temperature sensors in connection with floor-mounted heaters
WX232
Tempera-
ture
sensor
100 mm
WX232
WX232
min.
100 mm
max.
200 mm
WX232
100 mm
100 mm

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360° 180°
>1000 mm
>500 mm
Figure 9. Sensor’s minimum distance from an air vent
3.3. Installing the Temperature Sensor
Note! Do not install the temperature sensor closer
than 1000 mm to an omnidirectional air vent or
closer than 500 mm to an air vent directed away
from the sensor. See figure 9. The air flow near an
air vent cools down the sensor, which gives inac-
curate temperature readings to the control unit. As
a result, the heater might overheat.
3.3.1. Installing the Temperature Sensor WX232
Instructions below are general guidelines. Always
check the correct location for the temperature sen-
sor from the heater’s instructions for installation
and use.
Wall-mounted heaters (see figure 7)
• Fasten the temperature sensor on the wall
above the heater, along the vertical centre line
running parallel to the sides of the heater, at a
distance of 100 mm from the ceiling.
Floor-mounted heaters (see figure 8)
• Option 1: Fasten the temperature sensor on the
wall above the heater, along the vertical centre
line running parallel to the sides of the heater,
at a distance of 100 mm from the ceiling.
• Option 2: Fasten the temperature sensor to
the ceiling above the heater, at a distance of
100–200 mm from the vertical centre line of
the heater’s side.
3.4. Resetting the Overheat Protector
The sensor box (WX232) contains a temperature
sensor and an overheat protector. If the
temperature in the sensor’s environment rises too
high, the overheat protector cuts off the heater
power. Resetting the overheat protector is shown
in figure 10.
Note! The reason for the going off must be
determined before the button is pressed.
WX232
Figure 10. Reset button of the overheat protector

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1 Control panel WX387
2 Temperature sensor WX232
3 Data cable 5 m WX311
4 Data cable extension 10 m (optional) WX313
5 Circuit board WX361J
4. SPARE PARTS
3 41 2 5
We recommend to use only the manufacturer’s spare parts.

P.O.Box 12
Teollisuustie 1-7
40951 Muurame
FINLAND
[phone]
harvia@harvia.fi
www.harvia.com