HUUM UKU WiFi/LOCAL Heater Control Console

Introduction and Safety Information

This document provides installation and user instructions for the HUUM UKU WiFi/LOCAL Heater Control Console (9 kW). It is essential to read and follow all instructions carefully to ensure safe operation and to utilize the full benefits of the device. Electrical work must be performed by a certified electrician.

WARNING: This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless supervised by a responsible person.

CAUTION: Children should be supervised to ensure they do not play with the appliance.

For public saunas without a timer, a pilot lamp indicating the heater is active must be installed in the attendant's room. For public saunas with a timer, a separate timer compliant with UL 60730-1, UL 60730-2-7, CSA E60730-1, and CSA E603730-2-7 standards must be used.

The device set includes:

• UKU control panel
• Main module (2.56 in x 6.5 in x 9.65 in / 65 mm x 165 mm x 245 mm)
• Temperature sensor
• Door sensor
• Thermal and door sensor cables (197+197 in / 5+5 m; 2x28 AWG)
• UKU control panel cable (118 in / 3 m; 4x28 AWG)

Keep this operating manual near the device for easy access to safety and important information.

Before Installation

Read the operation manual thoroughly before installation to understand the device and prevent damage. Installation and maintenance should only be performed by a qualified electrician when the device is not under voltage.

For specific issues not covered, contact your vendor. Altering or rebuilding the control device without authorization is prohibited. The manufacturer reserves the right to make improvements.

Ensure building cables have sufficient cross-section. For older buildings, check connecting boxes and consider a new cable from the main switchboard. Install separate protection for the heater. Connecting to the mains without an earth-leakage circuit breaker is recommended.

Symbols Used in the Installation Manual:

WARNING! Failure to follow these instructions may lead to serious or fatal injuries.

CAUTION! Failure to follow these instructions may lead to minor to semi-serious injuries or cause damage to objects.

NB! Also, follow special safety requirements in individual chapters. Dispose of packaging material according to applicable rules.

Sauna Components Marked with Numbers:

• 1: UKU control panel
• 2: Main module
• 3: Door sensor
• 4: Temperature sensor
• 5: Heater (not included)
• 6: Vaporizer (not included)
• 7: Light (not included)

Installing UKU Electrical Control Device

Before installation, disconnect the electric heater from the power supply.

• The control device (1) must be installed outside the steam room, at user's eye level near the door, or as per manufacturer's recommendations.
• If your main controller (2) supports WiFi, install it where reception is adequate.
• The device must be installed in a dry place with IPX4 protection. Anchor power cables via the provided cable gland.
• Do not exceed a room temperature of 104°F (40°C) or 95% relative humidity.
• Ensure the controller box is sealed to prevent pollution.

CAUTION! The control device must be permanently connected to the mains without plugs. A method to disconnect all poles (a circuit breaker) must be installed. Power cables must meet UL 62 (US) and CSA 49 (Canada) standards, with a minimum temperature rating of 140°F (60°C). Cable cross-section depends on heater power. Recommended wire sizes: 10 AWG for 4.5/6 kW heaters, 6 AWG for 9 kW heaters, 10 AWG for 12 kW heaters (double-wire), 6 AWG for 15/18 kW heaters (double-wire). Always have cable size approved and installed by a qualified electrician.

NB! A method to disconnect all poles (a circuit breaker) must be installed on the power circuit.

NB! Measure cable lengths and determine locations of cables and device parts.

Control Panel – UKU

With a wooden housing:

• Remove the back cover to attach it to the wall.
• Attach the back cover so the upper edge of the control panel is at eye level.
• Connect the power cable to the device's screw terminal.
• Attach the device to the back cover and secure with side screws.

With a plastic housing:

• Connect the power cable to the UKU control panel's cable screws.
• Pull off the control panel knob.
• Attach the device to the wall with screws.
• Replace the control knob.

Main Module

• When installing inside the steam room, place the enclosure 4-19.7 inches (10-50 cm) above the floor.
• Fix the unit to the wall with 4 screws.
• Do not attach to the ceiling or inclined surfaces.
• Connect cables (control panel, temperature sensor, door switch) through a cable gland to the enclosure and main module.
• Connect the power cable (240V 2(N)~ or 120V) through cable glands to the main module.

Door Sensor

The door switch consists of a sensor and a magnet.

• Connect the cable ends to the switch terminals.
• Secure the magnet to the door, ensuring it allows the door to close and pass directly by the doorpost.
• Secure the sensor to the doorpost so it aligns with the magnet when the door closes. The maximum distance between sensor parts when the door is closed must be 0.2 inches (5 mm).

Temperature Sensor with Overheating Protection

• Connect the cable to the temperature sensor's plug.
• Screw the temperature sensor onto the wall.
• The sensor cannot be placed above the heater; it must be at least 19.7 inches (50 cm) away from it.
• The sensor must be 5.9-7.9 inches (15-20 cm) from the ceiling.
• The sensor must be at least 19.7 inches (50 cm) from any air opening (ventilation, door, window).

Vaporizer

A vaporizer connects to SL and SN outputs. If a vaporizer is connected, select the vaporizer function in the control console settings.

NB! When connecting a vaporizer function, ensure the water tank is always filled. If the tank is empty, the vaporizer function is disabled, risking burnout of the heating element.

Connection of a Lighting System

Lighting/ventilation can be connected to the LL and LN outputs. This allows switching the connected system on/off from the control console.

• To use the lighting function, select it in the control console settings.
• The maximum power for lighting/ventilation is 120V 50W.

Connecting the WiFi Controller to the Network

• The WiFi modem complies with 802.11 b/g/n standards.
• The controller is compatible only with 2.4 GHz networks. Connection may fail if your 5 GHz network has the same name as the 2.4 GHz one.
• The controller does not support WiFi names and passwords longer than 20 characters.
• Access the settings menu by holding the button for 10 seconds.
• Navigate to "WIFI settings", then "SSID", and select your network.
• Enter the password and follow the wizard to connect.
• Refer to the "UKU Mobile App" section for further instructions.

UKU Mobile App

The UKU WiFi device can be controlled via a smartphone app, allowing remote sauna operation.

Download the HUUM application from your mobile phone's app store (iOS App Store or Android Google Play). Create a user account and link the control console's ID (found on the main module sticker) to your account.

Verify that all mobile app functions work correctly and commands reach the sauna within 60 seconds. If issues occur, contact the manufacturer at info@huumsauna.com.

Testing

NB! Have a qualified electrician perform tests.

WARNING! Risk of electric shock. Tests must be carried out while the power is on.

• Power Terminals: Check circuit breaker and main module terminals. Bad connections can cause fires. Switch on power from the switchboard. The screen will flash briefly, indicating the device is ready.
• Door Switch: Close the steam room door. Turn on the control console, set temperature, and turn on heating. Contactors should switch on. Open the door; contactors should switch off within 5-10 seconds. Close the door; contactors should switch on again.
• Temperature Sensor:
  • Install protection. Power off the sauna's switchboard for 15 seconds, then power on. The console should turn off and then display the current temperature upon powering up.
  • The temperature reading updates periodically (1 degree at a time), which may take time to reflect the actual temperature.
  • Set the desired temperature to 122°F (50°C). Turn the sauna on and verify the temperature is maintained. Turn off heating.
  • Set the desired temperature again, turn on heating, and verify the temperature is achieved and maintained.

Operation Manual

• To start or end heating, briefly press the button on the control panel.
• During heating, a heating icon [W] appears above the temperature value.
• If you see the [WiFi-disconnected] icon, you are not connected to WiFi. Refer to page 8 for connection instructions.
• If you see the [WiFi-connected] icon, your device is connected and ready for app use. Refer to the "UKU Mobile APP" section.
• WiFi signal strength is indicated by filled bars.
• The screen remains active during heating.
• Using the mobile app allows choosing heating periods based on controller settings. The control panel offers specific heating times: 3/6 hours for private saunas, 12 hours for semi-public, and 18 hours for public saunas.
• The console turns off after heating ends or when the button is used.
• The screen displays the target temperature (top right) and current temperature (center). Adjust temperature by turning the knob.
• Access the settings menu by pressing and holding the button for 10 seconds.
• In the settings menu, you can select between °F and °C.
• Vent/Light: This function turns on connected appliances (LL/LN outputs) for a selected time whenever the door is opened.

Child Lock

• The child lock can be activated from the settings menu.
• It automatically engages when the control console screen turns off.
• To activate the screen with child lock on: Press and hold the button, turn it 15 degrees right, then 15 degrees left, and return to center.

Timer

• To activate the timer function, press and hold the button for 3 seconds.
• Once the desired time is selected, a short press on the button activates the timer. The function will not activate unless the button is pressed.

Lighting

• The lighting function can be selected from the settings menu.
• When selected, the light is turned on and off with two quick button presses.

Vaporizer

• The vaporizer function can be selected from the settings menu.
• Steam is increased by pressing, holding, and turning the button to the right. Steam is reduced by turning the button to the left.
• Heat intensity is displayed as an indicator (1-10) in the lower-left corner.

Using the Mobile App

• Set the desired temperature and heating time (last setting is remembered).
• Turn the sauna on.
• More details are available in the application's instructions.

General Safety Information for the User

• If thermal protection (266°F / 130°C) trips, check sauna condition and safety. For heat sensor replacement, contact info@huumsauna.com.
• For unique problems not covered, contact your vendor.
• Do not alter or rebuild the control device for safe use.
• The manufacturer reserves the right to make technical changes.

Purposeful Use:

• Ensure no objects are on the heater to prevent overheating and fire hazards.
• Close the steam room door while the sauna is heated; it will not function with an open door.
• This device is not for individuals with limited physical, sensory, or mental abilities (including children) or those lacking experience, unless supervised or instructed by a responsible person.
• Ensure children do not play with the device.
• For safety, turn off the sauna's circuit breaker when not in use.
• For remote control use, check heater condition, remove items from the heater, ensure the room is safe, and close the door.
• Dispose of old devices responsibly; they contain recyclable materials.
• Turn off the sauna's circuit breaker from the switchboard if the sauna will not be used for an extended period.

Warranty

Buyers must read the user manual and follow all instructions. Damage caused by non-compliance voids the warranty.

If defects are found that are attributable to the manufacturer, the buyer has the right to demand repair or replacement within 5 years of purchase. A purchase receipt is required for warranty claims.

Warranty Terms:

• Warranty applies only to products used according to the manual.
• Warranty does not cover natural wear and tear.
• Warranty does not cover defects or wear caused by planned use.
• Warranty does not apply if:
  • Damage or defects are caused by transportation or actions not controlled by the manufacturer.
  • The product is damaged by carelessness, improper storing, or overload.
  • Installation errors occurred due to non-compliance with the manual.
  • The product has been modified.
  • The warranty period has expired.
  • The product is incomplete.

For questions or claims, contact your reseller or email support@huumsauna.com (Canada) or usa.support@huumsauna.com (USA).

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