HUUM WiFi UKU Sauna Control System User Manual

HUUM WiFi UKU Sauna Control System 

• ATTENTION! The electrical work described in this manual may only be performed by a licensed electrician.
• ATTENTION! The main module can be used with heaters up to 18 kW.
• ATTENTION! This appliance is not intended for use by people (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge.
• ATTENTION! Children should be supervised to ensure that they do not play with the appliance.
• ATTENTION! Keep the installation and user manual in an easily accessible place near the device, so that you always have the safety requirements of the device and information important for use at hand.

The device set includes:

• sauna control panel;
• main module (175mm×75mm×250mm);
• temperature sensor;
• door sensor;
• temperature sensor and door sensor cables (5+5 m; 2×0.23 mm²);
• control panel’s cable (3 m; 4×0.34 mm²).

BEFORE INSTALLATION

Before installation read the operation manual thoroughly. Do not install or perform maintenance on the device if you do not understand all of the instructions. Contact the vendor or local distributor with any questions or concerns. This way you can use all the benefits of the device and prevent damage.

• The device must be installed and serviced in strict accordance with this manual, and all local laws and requirements. You must obtain all required building and similar permits before commencing installation of the sauna equipment.
• All power must be turned off from the circuit when installing or maintaining the device.
• If you encounter problems that are not covered in this manual, contact the distributor that issued the device for assistance.
• It is not permitted to alter or rebuild the control device.
• The manufacturer has the right to make software updates to the device. You can find the latest version of the operation manual on our website (huum.eu).
• Make sure supply conductors are properly sized per table, new wiring is recommended. Install on a dedicated circuit.
• It is recommended to connect the device to the mains without a residual current circuit breaker.
• UKU control system allows the sauna temperature to be set between 40 and 110°C.
• This product has been designed to work with devices that meet the requirements of standard EN 60335-2-53:2011.

Control system parts and parameters required for installation

The parts of the control system and sauna details are marked with numbers in the text of the manual and in the figure below:

1. UKU control panel;
2. Main module;
3. Door sensor;
4. Temperature sensor;
5. Heater (not included);
6. Steamer (not included);
7. Ventilation device/lamp (not included);
8. Connecting a 3-phase heater;
9. Connecting a 1-phase heater.

INSTALLING UKU ELECTRICAL CONTROL DEVICE

• Before installation disconnect the electric heater from the power supply.
• The control panel 1 should be installed outside the sauna room. The control panel with a glass case can also be installed inside the sauna room. Please read the instructions on the following pages.
• If your main module 2 supports WiFi or mobile connection, it should be placed in a place with coverage. Insulated rooms and boxes such as sauna rooms and metal switchboards are not suitable.
• The main module must be installed in a dry location. The device has a protection degree of IP67. Power cables must be secured using the provided cable glands.
• To prevent damage to the device, the operating environment temperature of the main module should remain between -20°C and 50°C and the maximum humidity in the room should not exceed 95%.

WARNING! The main module must be permanently connected to the circuit. A circuit breaker must be installed to disconnect all poles from the mains. The heater’s power cable should be SiHF-JB or similar. The cross-section of the cable depends on the power of the connected heater. See your heater’s manual

ATTENTION! Always let the correct cable size be approved and installed by a qualified electrician.
ATTENTION! Crimping the power cable ends is mandatory. The compression of the metal sleeve ensures that the wire threads are held in place, minimizing the risk of loose connections that can cause electrical faults or pose safety hazards.

ATTENTION! Determine the location of the parts of the control system in the room, then measure the lengths of the cables needed to connect them (see Figure 1).

ATTENTION! When connecting the main module to one phase, check that the fuse you are connecting to has sufficient amperage. All outputs U, V, W, N, and PE should be connected with separate cables.

Control panel 1

WARNING! To avoid over-threading the screw threads, tighten the screws only by hand. Do not use electric screwdrivers.

• The cable of the control panel must not exceed 20 meters.
• The cable of the control panel must not be routed parallel to the high-current cables.
• If it is placed outdoors, it is recommended to protect it with a box to shield it from weather conditions.

Control panel with glass case

The control panel with a glass case can be installed inside the sauna room, but it must be placed away from the heater, with the upper edge no higher than 1 meter from the floor. Additionally, the control panel must be installed at least 50 cm away from any exhaust ventilation. If there is an exhaust port in the wall that has the door to the sauna, the control panel needs to be installed on the other side of the door. The control panel with a glass case is recessed into the wall. Before installation, make a recess in the wall with dimensions of 65 x 105 x 27 mm in the desired place.

Installation steps:

• Remove the protective film of the glass and the control panel button.
• Remove the glass. The glass is fixed with magnets.
• Connect the cable following the numbering.
• Choose fasteners according to the material of the wall.
• Attach the control panel to the wall.
• Carefully place the glass back on the control panel housing.
• Install the button.

ATTENTION! If the wall where you install the glass control panel contains conductive materials (such as metal insulation) that could come into contact with the screws securing the cables on the back cover of the panel, cover the screw heads with insulating tape to prevent a short circuit. In sauna rooms, where the recessing of the control panel is not possible due to construction or surface finish, it can be attached to the wall using the control panel mounting frame (UKU surface frame H310301). The mounting frame is an additional product that you can ask your HUUM distributor.

Control panel with wooden case

The control panel with a wooden case can be installed inside the sauna room, but it must be placed away from the heater, with the upper edge no higher than 1 meter from the floor. Additionally, the control panel must be installed at least 50 cm away from any exhaust ventilation. If there is an exhaust port in the wall that has the door to the sauna, the control panel needs to be installed on the other side of the door.

• Remove the back cover of the UKU control panel to attach it to the wall.
• Mount the back cover on the wall, positioning the upper edge of the control panel at eye level.
• Connect the power cable to the screw terminal of the device.
• Secure the device to the back cover already placed on the wall.
• Use screws to secure it from the sides.

Control panel with plastic case

The plastic control panel must be installed outside the sauna room. If it is placed outdoors, it is recommended to protect it with a box to shield it from weather conditions.

• Connect the cable following the numbering.
• The mounting screw holes are hidden under the control panel button.
• Remove the button by gently pulling it.
• Fix the control panel to the wall with screws.
• Reinstall the button.

Main module 2

The main module should be installed outside of the sauna room. A weatherproof housing can be added if desired, providing extra protection against water, snow, and condensation, and allowing the module to better blend with the sauna’s surroundings. The main module is capable of functioning in temperatures as low as -40°C; however, it is important to note that the display may experience slowdowns at these extreme Temperatures.

• If installing outside is not possible, the main module can be mounted inside the sauna room. It should not be positioned higher than 10 cm and must be at least 180 cm away from the heater, ideally under the sauna bench. The maximum working environment temperature for the main module is 50°C.
• When mounting the main module, please make sure that you are always able to open the access panel.
• Do not attach the main module to the ceiling or inclined surfaces.
• The screw holes for fixing the main module to the wall are located under the fixing screws of the device cover.
•  Fix the main module on the wall in an upright position using four screws, ensuring that the cable openings face downwards.
• Screws are not included.
• Connect the cables of the UKU control panel, temperature sensor, and door switch through a cable glands to the enclosure and main module (see figure 1.).
•  Connect the power cable (230V / 400V) through the cable glands to the main module, see figure.

WARNING! If the cable glands are not used, the IP class of the device does not apply!

Door sensor

• The door sensor kit includes a sensor, magnet and fixing tape.
• The length of the cable between the sensor and the main module must not exceed 10 m.
• Install the sensor on the handle side of the door frame, at a maximum height of 40 cm from the floor. When installed higher, the temperature may affect the performance of the magnet and the durability of the magnet tape.
• It is important to ensure that the magnet in the door passes directly by the sensor in the door frame.
• Use a drill with a diameter of 5 mm to sink the door sensor into the door frame.
• Drill a hole and install the sensor.
• Connect the cable to terminals O1 and O2 in the main module. Connect the other end of the cable to the cables attached to the door sensor.
• Stick the door sensor magnet to the door leaf using the tape attached to it.
• When closing the door, the sensor and the magnet should remain slightly displaced, and the distance between them must not exceed 10 mm.

Temperature sensor with overheating protection

• The length of the cable between the temperature sensor and the main module must not exceed 10 m.
  ATTENTION! The temperature sensor must not be located directly above the heater, but 50 cm from the outer edge of the heater.
• If the temperature sensor is installed on the wall, the sensor must be 15 cm from the ceiling.
• The temperature sensor must be located at least 50 cm away from the corners of the sauna room and air openings (door, window, ventilation).
• If the sensor can not be positioned on the wall at the distances specified above due to the size or the construction of the room, the sensor must be installed on the ceiling. The sensor must be positioned 50 cm away from the edge of the heater and installed at the highest point of the ceiling. When installing the temperature sensor on the ceiling, the cable of the temperature sensor (supplied in the UKU kit) must be routed from behind the boarding of the sauna ceiling. When routing the cable externally, it must be protected from UV radiation and external weather
  effects with a slat or similar.
•  Connect the cable to terminals T1 and T2 in the main module and to terminals 1 and 2 inside the temperature sensor.
• The temperature sensor consists of the rear and front case halves. Attach the back side to the wall with two screws, ensuring it is straight.

Install the front half as shown in the figure on the right.Installation in case of barrel sauna

If the sensor can not be positioned on the wall at the distances specified above due to the size or the construction of the room, the sensor must be installed on the ceiling. The sensor must be positioned 50 cm away from the edge of the heater and installed at the highest point of the ceiling. When installing the temperature sensor on the ceiling, the cable of the temperature sensor (supplied in the UKU kit) must be
routed from behind the boarding of the sauna barrel ceiling. When routing the cable externally, it must be protected from UV radiation and external weather effects with a slat or similar.

Steamer 6

• The maximum power of the steamer is 2500W, voltage 230V/50Hz.
• Connect SL (phase), SN (neutral) to the outputs of the steamer. To connect, see the figure 1.
• After connecting the steamer, turn on the steamer function in the control panel settings. See the “Humidity settings” section of the operation manual page 17.
  WARNING! When connecting the control system with an electrical heater with a steamer function ensure that the water tank is always filled with water. When the water tank is empty, the steamer function is disabled and there is a risk that the heating element may burn out.
  ATTENTION! The steamer cannot be used with a target temperature above +90°C.

Ventilation device/ lamp 7

• It is possible to connect a lamp or a ventilation device to the outputs LL(phase) and LN (neutral) of the main module. To connect, see the figure 1.
• The maximum power of the device is 100W, voltage 230 V/50 Hz
• After connecting the device, turn on the “Vent/Lamp” function in the control panel settings, see the corresponding section on page 16 in the operation manual.
• If the lamp or ventilation device is connected and the corresponding function is Active in the control panel menu, you can turn the connected device on and off using the control panel.

Connecting UKU WiFi control system to the network

• The WiFi modem complies with 802.11 b/g/n standard.
• The main module supports only 2.4 GHz WiFi networks.
• UKU should be connected to the unique 2.4GHz WiFi network. If the name of the network matches with that of a 5GHz or 6GHz network, it should be changed.

ATTENTION! The main module does not support WiFi network names and passwords which are longer than 20 characters.

• To enter the control panel menu settings, hold down the panel button for 9 seconds.
• Go to “WiFi settings” and select “SSID” from there. You can confirm the options by clicking on the button.
• In the opened menu, find the WiFi network to which you want to connect your sauna control system.
• If you have selected WiFi network, enter the password.
• After entering the password, click Connect and follow the instructions on the screen.
• In the operation manual, information on connecting the sauna to the mobile application has been provided in the chapter “HUUM mobile application” on page 13.
• If you have problems connecting the control system to the WiFi network, you can find video instructions and the fastest help at: huum.eu.

HUUM mobile application

If you have chosen a UKU control system with WiFi capability, you can also control it using the HUUM mobile application in addition to the control panel. In this way, you can conveniently heat your sauna in the app even when you are away from home.

• Download the HUUM application from the application page of your mobile phone’s operating system:
• Create a user account in the application.
• Connect the control system ID ( X X X X X X ) with your user account. The ID of the control system is also the ID of your sauna, you can find it on the sticker located in the upper right corner of the main module cover. The code is also provided on the cover.
• Check whether the functions of the mobile application (e.g. selection of sauna temperature and heating time, heating on and off) work and reach the sauna. The function should start within 60 seconds of selecting the command in the menu. In case the functions of the mobile application are not activated, contact us: support@huum.eu.
• The number of user accounts linked to one sauna is not limited.

How to add WiFi capability to your UKU Local control system?

If you have purchased a UKU Local control system, but want to add WiFi capability to it, you can do so in the HUUM mobile application. The upgrade does not require calling a technician but is activated remotely for an additional fee.

• To do this, download the HUUM mobile application, create a user account, and link it to your sauna ID (see the previous section “HUUM mobile application”).
• You can get further instructions from the mobile application

TESTING

1. Check the power terminals of the circuit breaker and the main module.
   Bad connections may cause a fire. Switch the power on from the switchboard by using the circuit breaker. The screen will flash for a moment. The device is ready for use.
2. Check the temperature sensor
   • If the error message “Temperature sensor error!” is displayed on the screen of the control panel, check the temperature sensor cable connections on both the sensor side and the main module side. If the error message does not disappear, the temperature sensor must be tested. For testing, connect it to the main module with a shorter wire, ruling out a faulty wire. If there is the same error message afterward, then proceed to the next testing method. The final, most thorough testing method is measuring the resistance of the temperature sensor. It should be around 1,1 kOhm at 20°C. If the resistance is correct, the fault is in the cable or connections. If there is no resistance, the sensor is damaged and must be replaced. For a replacement sensor, please contact the reseller who sold you the HUUM control system.
   • In other cases, to test, turn off the circuit breaker of the sauna for a minute and then turn it back on. The control panel should be switched off and display the current temperature when switched on
   • Adjust the target temperature of the sauna to 50°C. Turn on the sauna. If the control panel indicates that the sauna has reached the desired temperature, make sure after 30 minutes that the desired temperature remains noticeably the same. Turn off the heating.
3. Check the door sensor
   Close the sauna room door. Turn on the control panel and set the temperature. Turn on the heating. The heater starts heating and the heating elements start glowing red. The relays should activate. Open the sauna room door. The relays should disconnect within 5-10 seconds and the message “Door open” appears on the screen. Close the door. The relays activate again, the message disappears and heating continues.

CONTROL PANEL USER MANUAL

• Before use, make sure that you have made the necessary connections according to your control panel model (see “Connecting UKU WiFi control system to the network” on page 12).
• A short single press of the button turns the control panel on and starts or stops the heating. The display remains active throughout the heating period.
• You can set the maximum possible heating time of the heater in the menu of the control panel on the wall. In the case of private saunas, the choice of heating time is 3 or 6 hours, in the case of semi-public saunas 12 hours, and in the case of public saunas 18 hours. By using the mobile application you can choose the heating time yourself, but its length cannot exceed the settings of the control panel.
• The current sauna temperature is displayed in the middle of the screen.
• The target sauna temperature is indicated by a number in the upper right corner of the screen. Turn the button to select the target temperature.
• Press the button to start heating. During heating the heating symbol is displayed above the temperature on the screen.
• To enter the control panel settings menu, hold down the button for 9 seconds.
• Select “Back” for each function to exit the menu.

Timing of heating

• UKU control system allows you to schedule the start of heating.
• To activate the timer function, press and hold the button for 6 seconds.
• When the desired time is selected, a single short press on the button switches the timer on. The function of the timer will not activate unless you press the button!
• The timeline appears on the screen, showing how much time is left until the heater is turned on.

Control panel settings menu

The following parameters can be set in the menu:
WiFi settings – changing WiFi settings, selecting a suitable network, and connecting to it.

• Press and hold the button for 9 seconds to enter the control panel settings menu
• Go to the “WiFi settings” option. The necessary steps for selecting the WiFi network and establishing the connection have been described in the section “Connecting UKU WiFi control system to the network” on page 12.

INTENDED USE

• Before heating, always make sure that there are no objects on the heater. Non-flammable objects can also cause overheating and fire hazards.
• After ensuring that the sauna room is safe, close the sauna room door. It should remain closed during heating as heating with the door open is ineffective; the heat escapes from the room.
• To use the remote control, ensure in advance that the heater is in working order and there are no objects on it. If “Remote start safety” is enabled (page 20), confirm the safety prompt. Also, ensure that the sauna room door is closed.
• The device is not intended for use by people with limited physical, sensory or mental abilities (including children) or by people with insufficient experience and/or insufficient knowledge, excl. if they are supervised by a person responsible for safety or have received instructions for use from such persons.
• Make sure that children do not play with the device.
• For longer breaks in use, turn off the sauna’s current protection at the switchboard.
• Old equipment contains recyclable materials. Do not throw old devices in the household waste, but investigate the possibilities of disposal of devices at the waste stations in your area or at the local municipality.

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HUUM WiFi UKU Sauna Control System-FAQs