Harvia Xenio Control Unit
Owner's/Operator's Manual
Instructions for Installation and Use of Control Unit
IMPORTANT! This manual must be left with owner, manager, or operator of Sauna after it is used by electrician!
Models: CX170-U1, CX170-U1-15, CX170-U3, CX170-U3-15
Certifications: ETL LISTED, CONFORMS TO UL STD 875, CERTIFIED TO CAN/CSA STD E60335-2-53-05
1. Harvia Xenio
The Harvia Xenio control unit consists of a control panel, a power unit, and a sensor. The control unit regulates the sauna room temperature based on information from the sensor. The temperature sensor and overheat protector are located in the sensor box.
The control unit can be used to preset the start time of the heater.
1.1. General
The Harvia Xenio control unit is composed of a control panel, a power unit, and a temperature sensor. It regulates the sauna temperature based on sensor data. The temperature sensor and overheat protector are housed in a sensor box. Temperature is detected by an NTC thermistor, and an overheat protector can be reset.
The control unit allows for pre-setting the heater's start time.
1.2. Technical Data
Control Panel
- Temperature adjustment range: 104–194 °F (40–90 °C)
- Pre-setting time adjustment range: 0–12 hours
- Lighting control: max. power 100 W, 120 V 1N~
- Fan control: max. power 100 W, 120 V 1N~
- Dimensions: 3.4″ x 1.0″ x 4.4″ (85 mm x 24 mm x 110 mm)
Power Unit
- Supply voltage: CX170-U1: 240 V 1N~, CX170-U1-15: 240 V 1N~, CX170-U3: 208 V 3N~, CX170-U3-15: 208 V 3N~
- Max. load: CX170-U1: 12.5 kW/7 kW (240V 1N~), CX170-U1-15: 15 kW/10.5 kW (240V 1N~), CX170-U3: 10.5 kW (208V 3N~), CX170-U3-15: 15 kW (208V 3N~)
- Dimensions: 10.6″ x 3.0″ x 10.6″ (270 mm x 75 mm x 270 mm)
Figure 1: System Components: Depicts the control panel, power unit, main switch, temperature sensor, and heater (not included).
1.3. Troubleshooting
If an error occurs, the heater power is cut off, and the control panel displays an error message (e.g., "E1"). This helps identify the cause of the error.
| Description | Remedy/Solution |
|---|---|
| E1: Temperature sensor's measuring circuit broken. | Check the red and yellow wires to the temperature sensor and their connections for faults. |
| E2: Temperature sensor's measuring circuit short-circuited. | Check the red and yellow wires to the temperature sensor and their connections for faults. |
| E3: Overheat protector's measuring circuit broken. | Press the overheat protector's reset button (see section 3.4.). Check the blue and white wires to the temperature sensor and their connections for faults. |
| E9: Connection failure in the system. | Switch off the power from the main switch. Check the data cable, sensor cable(s), and their connections. Switch the power on. |
Table 1: Error Messages. Note: The overheat protector can be reset by the user. All other maintenance must be done by professional maintenance personnel.
Status Messages
- SAFE: Safety switch circuit is open. Remove the object from atop the safety switch.
- rESt: Pause time active.
- rc on: Remote control activated.
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 within the safety distance.
Start the heater by pressing the [I/O button] on the control panel. The display shows the set temperature and on-time. The heating elements automatically turn on/off to maintain the desired temperature.
The heater turns off when the set on-time runs out, the [I/O button] is pressed, or an error occurs.
Settings for remaining on time, pre-setting time, and desired sauna room temperature can be changed. Temperature unit (Fahrenheit/Celsius) can also be changed.
2.2. Using Accessories
Lighting and ventilation can be controlled separately.
2.2.1. Lighting
The sauna room lighting can be controlled from the control panel (max. 100 W).
Switch lights on/off by pressing the [light button] on the control panel.
2.2.2. Ventilation
If a fan is installed, it can be connected to the control unit and controlled from the control panel.
Start/stop the fan by pressing the [fan button] on the control panel.
Figure 2: Control Panel: Illustrates the control panel layout, including display indicators for temperature and on-time, menu/navigation buttons ([MENU button], [+/- buttons]), and operating buttons for heater, lighting, and fan.
2.3. Remote Control
The control unit can be used to remotely control the heater's power input via an on/off remote switch or building automation system, provided the heater is equipped with a safety switch.
Using with a safety switch: The heater can be turned on remotely if the safety switch circuit is closed. If open, "SAFE" is displayed, and the heater will not start.
Pause time: A pause time prevents the heater from turning on if less than 6 hours have passed since the last shutdown. During this period, "rESt" is displayed. After the pause time, "rc" is displayed, and the heater can be remotely started.
Memory for power failures: The control unit resumes operation if the remote switch was in the ON position.
Preset time: If the control unit is on preset delay time, remote control is not possible. Once the preset delay passes and the heater is on, it can be turned off remotely.
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 and prevents remote start.
3. Instructions for Installation
Electrical connections must be made by an authorized, professional electrician in accordance with current regulations. The installer must provide the user with the Instructions for Installation and Use and necessary training.
3.1. Installing the Control Panel
The control panel is splashproof and operates at a low voltage. It can be installed in a washing/dressing room or living quarters. If installed in the sauna room, it must be at the minimum safety distance from the heater and at a maximum height of one meter from the floor.
Conduit tubing is recommended for routing the data cable within the wall. Installation on the wall surface is also an option. Embedding the panel in the wall is recommended for aesthetics and to protect it from splashes.
- Thread the data cable through the hole in the back cover.
- Fasten the back cover to a wall with screws.
- Push the data cable into the connector.
- Press the front cover into the back cover.
Figure 4: Fastening the control panel: Illustrates the steps for mounting the control panel, showing cable routing and screw placement.
3.2. Installing the Power Unit
Install the power unit on a wall outside the sauna room, in a dry place with an ambient temperature above 32 °F (0 °C).
Note: Do not embed the power unit into the wall, as this can cause excessive heating and damage.
Figure 5: Opening the power unit cover and mounting the unit to a wall: Shows how to access the power unit's interior and mount it.
3.2.1. Electrical Connections
Figures 6a, 6b, 6c, and 6d illustrate the electrical connections for the power unit. Tables 2a, 2b, 2c, and 2d specify wire and fuse sizes.
Figure 6a: Electrical connections (CX170-U1): Details wiring for the CX170-U1, including connections to the control panel, heater, fan, lighting, safety switch, and temperature sensor, with fuse and wire specifications.
Figure 6b: Electrical connections (CX170-U1-15): Details wiring for the CX170-U1-15, including connections to the control panel, heater, fan, lighting, safety switch, and temperature sensor, with fuse and wire specifications.
Figure 6c: Electrical connections (CX170-U3): Details wiring for the CX170-U3, including connections to the control panel, heater, fan, lighting, safety switch, and temperature sensor, with fuse and wire specifications.
Figure 6d: Electrical connections (CX170-U3-15): Details wiring for the CX170-U3-15, including connections to the control panel, heater, fan, lighting, safety switch, and temperature sensor, with fuse and wire specifications.
| MODEL | WATTS | AMPS | VOLTAGE | PH | WIRE SIZE/CALIBRE DE FIL | Description (Breaker to power unit / Power unit to heater) |
|---|---|---|---|---|---|---|
| KIP-30-W1, FIN-30 | 3000 | 12,5 | 240 | 1 | #14 copper/cuivre | Breaker to power unit (2) #14 copper/cuivre |
| KIP-45-W1, FIN-45 | 4500 | 18,8 | 240 | 1 | #12 copper/cuivre | Breaker to power unit (2) #12 copper/cuivre |
| KIP-60-W1, FIN-60 | 6000 | 25,0 | 240 | 1 | #10 copper/cuivre | Breaker to power unit (2) #10 copper/cuivre |
| K10G-U1 | 10000 | 41,7 | 240 | 1 | #6 copper/cuivre | Breaker to load center (4) #10 copper/cuivre |
| K12,5G-U1 | 12600 | 52,7 | 240 | 1 | #6 copper/cuivre | Breaker to load center (4) #10 copper/cuivre |
| MODEL | WATTS | AMPS | VOLTAGE | PH | WIRE SIZE/CALIBRE DE FIL | Description (Breaker to power unit / Power unit to heater) |
|---|---|---|---|---|---|---|
| KIP-30-W1, FIN-30 | 3000 | 12,5 | 240 | 1 | #14 copper/cuivre | Breaker to power unit (2) #14 copper/cuivre |
| KIP-45-W1, FIN-45 | 4500 | 18,8 | 240 | 1 | #12 copper/cuivre | Breaker to power unit (2) #12 copper/cuivre |
| KIP-60-W1, FIN-60 | 6000 | 25,0 | 240 | 1 | #10 copper/cuivre | Breaker to power unit (2) #10 copper/cuivre |
| KIP-80-W1, FIN-80 | 8000 | 33,3 | 240 | 1 | #8 copper/cuivre | Breaker to power unit (2) #8 copper/cuivre |
| K10G-U1 | 10000 | 41,7 | 240 | 1 | #6 copper/cuivre | Breaker to load center (4) #10 copper/cuivre |
| K12,5G-U1 | 12600 | 52,7 | 240 | 1 | #6 copper/cuivre | Breaker to load center (4) #10 copper/cuivre |
| MODEL | WATTS | AMPS | VOLTAGE | PH | WIRE SIZE/CALIBRE DE FIL | Description (Breaker to power unit / Power unit to heater) |
|---|---|---|---|---|---|---|
| KIP-30-W3, FIN-30-W3 | 3000 | 8,3 | 208 | 3 | #16 copper/cuivre | Breaker to power unit (2) #16 copper/cuivre |
| KIP-45-W3, FIN-45-W3 | 4500 | 12,5 | 208 | 3 | #14 copper/cuivre | Breaker to power unit (2) #14 copper/cuivre |
| KIP-60-W3, FIN-60-W3 | 6000 | 16,7 | 208 | 3 | #12 copper/cuivre | Breaker to power unit (2) #12 copper/cuivre |
| KIP-80-W3, FIN-80-W3 | 8000 | 22,2 | 208 | 3 | #10 copper/cuivre | Breaker to power unit (2) #10 copper/cuivre |
| K10G-U3 | 9800 | 27,3 | 208 | 3 | #10 copper/cuivre | Breaker to load center (4) #10 copper/cuivre |
| MODEL | WATTS | AMPS | VOLTAGE | PH | WIRE SIZE/CALIBRE DE FIL | Description (Breaker to power unit / Power unit to heater) |
|---|---|---|---|---|---|---|
| KIP-30-W3, FIN-30-W3 | 3000 | 8,3 | 208 | 3 | #16 copper/cuivre | Breaker to power unit (2) #16 copper/cuivre |
| KIP-45-W3, FIN-45-W3 | 4500 | 12,5 | 208 | 3 | #14 copper/cuivre | Breaker to power unit (2) #14 copper/cuivre |
| KIP-60-W3, FIN-60-W3 | 6000 | 16,7 | 208 | 3 | #12 copper/cuivre | Breaker to power unit (2) #12 copper/cuivre |
| KIP-80-W3, FIN-80-W3 | 8000 | 22,2 | 208 | 3 | #10 copper/cuivre | Breaker to power unit (2) #10 copper/cuivre |
| K10G-U3 | 9800 | 27,3 | 208 | 3 | #10 copper/cuivre | Breaker to load center (4) #10 copper/cuivre |
| K12,5G-U3 | 12300 | 34,1 | 208 | 3 | #8 copper/cuivre | Breaker to load center (4) #8 copper/cuivre |
| K15G-U3 | 14400 | 40,0 | 208 | 3 | #8 copper/cuivre | Breaker to load center (4) #8 copper/cuivre |
3.2.2. Power Unit Fuse Faults
Replace a blown fuse with a new one of the same rating. Fuse placement is shown in Figures 6a and 6b.
- If the fuse for the electronic unit blows, there is likely a fault in the power unit requiring service.
- If a fuse for line U1, U2 blows, check lighting or fan wiring and function.
- If a fuse for line A1, A2 blows, check the heater's overheat protector circuit, safety contactor, and wiring.
3.3. Installing the Temperature Sensor
Floor-mounted heaters (see Figure 7):
- Option 1: Mount sensor on the wall above the heater, parallel to its sides, 3 15/16″ (100 mm) from the ceiling.
- Option 2: Mount sensor to the ceiling above the heater, 7 14/16″ (200 mm) from the heater's vertical centre line.
Wall-mounted heaters (see Figure 8):
- Mount sensor on the wall above the heater, parallel to its sides, 3 15/16″ (100 mm) from the ceiling.
Important: Do not install the temperature sensor closer than 3′-3 3/8″ (1000 mm) to an air vent. Air flow from vents can cause inaccurate readings and lead to heater overheating. (See Figure 9).
Figure 7: The place of the temperature sensor of the control unit in connection with floor-mounted heaters: Illustrates sensor placement options for floor-mounted heaters with dimensional specifications.
Figure 8: The place of the temperature sensor of the control unit in connection with wall-mounted heaters: Illustrates sensor placement for wall-mounted heaters with dimensional specifications.
Figure 9: Sensor's minimum distance from an air vent: Shows the required clearance from air vents to prevent inaccurate readings.
3.4. Resetting the Overheat Protector
The sensor box contains a temperature sensor and a resettable overheat protector. If the temperature becomes too high, the protector cuts off heater power. It can be reset after the cause is determined. (See Figure 10).
Note: Determine the reason for the shutdown before pressing the reset button.
Figure 10: Reset button of the overheat protector: Shows the location of the reset button.
4. Spare Parts
Use only parts approved by the manufacturer.
| # | Part | Part Number |
|---|---|---|
| 1 | Control panel | WX384 |
| 2 | Data cable 5 m | WX311 |
| 3 | Data cable extension 10 m (optional) | WX313 |
| 4 | Temperature sensor | WX232 |
| 5 | Circuit board | WX361 |
| 6a | Contactor 30 A (CX170-U1, CX170-U3) | ZSK-778 |
| 6b | Contactor 45 A (CX170-U3-15, CX170-U1-15) | ZSL-940 |
Guarantee
Harvia provides a one-year guarantee from the date of purchase, covering manufacturing and material defects. The guarantee includes spare parts supply. Replacing parts does not extend the original guarantee period.
The guarantee does not cover defects from normal wear and tear, improper installation, poor maintenance, failure to follow instructions, or product alterations. Improper use voids the guarantee. Delivery and field repair costs are not covered.
Free repair work may be provided for up to five years from purchase, but spare parts may be charged for after the first year.
The guarantee is void if installation and wiring are not performed by a certified electrician or authorized service representative. The installer's signature is required.
The guarantee is void if the information below is not filled out and returned within 15 days of purchase. The guarantee applies only to the first installation and the original purchaser.
Harvia control unit model/Model of control unit:
_________________________
Model number/Model number:
_________________________
Date of purchase/Date of purchase:
_________________________
Original purchaser/Original purchaser:
_________________________
Address/Address:
_________________________
Purchased from/Purchased from:
_________________________
Date of electrical installation/Date of electrical installation:
_________________________
Signature of the installer/Installer's signature:
_________________________
