Rohnson R-9920 Genius 20 Wi-Fi ION & UV-C Dehumidifier

User Manual

Please read this user manual carefully before using the appliance. Use the appliance only as described in this manual. Keep the manual for future reference.

Important Safety Instructions

Read carefully and save for future use.

• Warranty becomes void if the appliance is damaged due to non-compliance with instructions. The manufacturer/importer is not liable for damages caused by failure to follow the manual. Improper use is not in accordance with this manual.
• Ensure the appliance's voltage matches your electrical outlet voltage.
• Connect only to a properly earthed socket.
• This appliance can be used by children aged 8 years and older, and persons with reduced physical, sensory, or mental capabilities or lack of experience and knowledge, if supervised or instructed on safe use and understanding the hazards. Cleaning and maintenance by the user should not be performed by children unless they are older than 8 and supervised. Keep the appliance and its cord out of reach of children under 8.
• Children must not play with the appliance.
• Do not use the appliance for purposes other than intended.
• Do not operate via external timer or remote control.
• Always switch off and unplug the appliance when not in use or before cleaning.
• Do not use if the appliance malfunctions, has been dropped, damaged, or submerged in water. Do not use with a damaged power cord. Do not attempt repairs yourself; risk of electric shock. Refer all repairs to an authorized service center.
• Do not unplug by pulling the power cord; risk of cord/socket damage.
• Do not place heavy objects on the power cord. Ensure the cord does not hang over edges or touch hot surfaces.
• This appliance is for household use only, not for outdoor or commercial/industrial use.
• Do not use in bathrooms.
• Do not place near heat sources or expose to direct sunlight.
• Do not use in excessively dusty environments.
• Do not use near flammable or explosive substances.
• Avoid direct contact with water. Do not touch the appliance or power cord with wet hands.
• Always place the appliance on a flat, stable, dry surface to prevent vibration, noise, or water leakage.
• Position the appliance at least 20-30 cm from surrounding objects. Do not place objects within 30 cm above the top.
• Ensure the water tank is correctly positioned before operation. Do not remove the tank while the appliance is running.
• Close windows and doors for optimal dehumidification.
• Keep air inlet and outlet vents clear. Do not insert objects.
• Turn off and unplug before moving. Empty the condensate tank before moving.
• To prevent fire risk, do not store in rooms with open fires, functioning gas appliances, or electric heaters.
• The refrigerant used may not be odorized.
• Do not insert foreign objects into the appliance.
• Never cover the appliance. Air vents must not be blocked.
• Regularly empty the condensate tank (may fill within hours in extreme conditions).
• The appliance can operate in temperatures between 5-32°C.
• Clean the filter regularly for efficient operation.
• When storing or handling, do not place on its side or upside down, and avoid strong vibrations.
• Ensure air inlet/outlet grilles are free of dust. Clean regularly with a vacuum cleaner if needed. Note: Button presses are accompanied by audible signals.

Appliance Description

Key components:

• 1. Air Outlet
• 2. Control Panel
• 3. Handle
• 4. Casters
• 5. Air Inlet Grille
• 6. Air Filter
• 7. Water Tank

Control Panel Description

The control panel features the following buttons:

• 1. Child Lock Button
• 2. Timer Button
• 3. Display
• 4. Fan Speed Setting Button
• 5. Sleep Mode Button
• 6. Independent Air Cleaning Function Button
• 7. Humidity Setting Button
• 8. Mode Setting Button
• 9. ON/OFF Button

Display Indicators

The display shows the status via indicator lights:

• 1. Air Cleaning Function Indicator Light
• 2. Child Lock Indicator Light
• 3. Full Tank Indicator Light
• 4. Anti-frost Function Indicator Light
• 5. Sleep Mode Indicator Light
• 6. Wi-Fi Indicator Light
• 7. High Fan Speed Indicator Light
• 8. Low Fan Speed Indicator Light
• 9. Dehumidifying Mode Indicator Light
• 10. Auto Mode Indicator Light
• 11. Continuous Mode Indicator Light
• 12. Laundry Drying Mode Indicator Light

Using the Appliance

Plug the appliance into the electrical outlet. It is in standby mode.

• Press the ON/OFF button to turn the appliance on/off.
• Upon turning on, the ionization and UV-C lamp functions activate automatically.
• The ionization function enriches air with beneficial negative ions, removing dust and purifying the air. It is suitable for allergy sufferers.
• The UV-C lamp helps eliminate unpleasant odors and harmful microorganisms.

Button and Function Descriptions

Child Lock Button

Press and hold for 5 seconds to activate/deactivate. This locks the control panel to prevent unintended operation.

Timer Button

Used to set the appliance's auto on/off time in 1-hour increments (1-24 hours). Set the timer in operating mode for auto shut-off, or in standby mode for auto start. Wait 5 seconds for settings to save. Press repeatedly until "00" is displayed to cancel.

Fan Speed Setting Button

Allows switching between low and high fan speeds.

Sleep Mode Button

Turns off the control panel lighting to avoid disturbance during rest.

Independent Air Cleaning Function Button

Activates/deactivates the air cleaning function with ionization and UV-C lamp. When active, the appliance functions solely as an air purifier.

Humidity Setting Button

Allows setting the desired humidity level between 30-80%.

Mode Setting Button

Select from 4 modes:

• 1. Normal Mode: Set desired humidity and fan speed.
• 2. Auto Mode: Automatically maintains optimal room humidity at low fan speed. Humidity and fan speed are set automatically.
• 3. Continuous Mode: Continuously dehumidifies at high fan speed. Humidity and fan speed are set automatically. ⚠️ Requires a drain hose. The appliance will shut off if the water tank is full.
• 4. Laundry Drying Mode: Suitable for accelerated drying of laundry at high fan speed. Humidity and fan speed are set automatically.

Anti-Frost Function (Automatic Defrosting)

If the appliance is operated at temperatures below 18°C, automatic defrosting may occur (approx. every 25 minutes for 5 minutes). Dehumidification and air cleaning may be interrupted during defrosting. Do not turn off or unplug the appliance during defrosting.

Color Humidity Level Indicator

The appliance features a color indicator for humidity levels:

• Blue: Humidity <55%
• Green: Humidity 55-70%
• Red: Humidity >70%

Additional Functions

• Alarm: An audible signal sounds if the water tank is full or removed for more than three minutes, indicating the need to empty and reinsert the tank.
• Auto Stop: Dehumidification automatically stops if the water tank is full, removed, improperly placed, or if room humidity is 5% lower than the set humidity.
• Memory Function: The appliance remembers the last settings after a power failure. It will restart in the last set mode upon power restoration.
• Full Tank Indicator Light: Illuminates when the water tank is full, removed, or improperly placed, requiring attention.

Condensate Removal

Emptying the Water Tank

• Turn off and unplug the appliance before emptying.
• Do not remove the water tank immediately after turning off; water may drip from the appliance.
• Do not connect a drain hose if using the tank for condensate collection. Water will drain through the hose instead of the tank.
• Grasp the water tank from both sides and carefully remove it. Avoid spilling condensate.
• When emptying, hold the tank by its handle with one hand and support the bottom with the other.
• Place the tank back into the appliance correctly.

Condensate Drainage via Drain Hose (Continuous Mode)

Prepare the included drain hose (1 meter length, 10 mm outer diameter).

• Turn off and unplug the appliance.
• Remove the water tank.
• Connect one end of the drain hose to the outlet on the appliance and replace the water tank. Route the other end of the hose to a larger container (bucket, bath, etc.) for free condensate flow. Ensure the drain hose points downwards and is not blocked or damaged.
• Prepare a container for potential dripping before removing the drain hose from the appliance.

Cleaning and Maintenance

Always turn off and unplug the appliance before cleaning.

• Do not use abrasive cleaners, solvents (e.g., thinners, benzene), or harsh chemicals to avoid damaging the appliance surface.
• Do not immerse the appliance in water or any other liquid.

Cleaning Grilles and Appliance Surfaces

• Wipe the appliance surface with a soft cloth. For dirt, use a cloth dampened with water and a neutral detergent.
• Carefully clean the air outlet grille using a vacuum cleaner or a soft brush.

Cleaning the Filter

• Clean the carbon and ionizing filter monthly using a vacuum cleaner.
• Filter lifespan is approximately 1 year, depending on usage and environment. Replacement filters are designated DF-005 and DF-006.
• Do not use the appliance without a filter. This can cause dust accumulation in the evaporator, reducing performance.

Cleaning the Water Tank

• Use warm water to clean the tank. If dirty, use water with a neutral kitchen detergent, then rinse with clean water. Clean the tank approximately once a week to prevent mold and bacteria growth.

Pre-use Check:

• Ensure the air outlet is not blocked.
• Check that the plug and socket are in good condition.
• Verify the air filter is clean.
• Confirm the drain hose is not damaged.

Long-Term Storage

• If the appliance is not used for an extended period, store it as follows:
• Unplug the appliance, clean it, and coil the power cord.
• Ensure the water tank is empty and clean, and the drain hose is disconnected.
• Pack the appliance to protect it from dust and dirt.
• Store the appliance in a dry and cool place.

Optional HEPA 13 + Activated Carbon Filter DF-015 Health Kit

This model supports the optional DF-015 Health Kit, which includes a HEPA 13 + activated carbon filter. This filter replaces the standard carbon and ionizing filter and has a lifespan of approximately 1 year. It can be cleaned with a soft brush or vacuum cleaner. This filter purifies air from dust, mold spores, pollen, mites, and other pathogens.

Troubleshooting

Dehumidification Problems

Water Drainage Problems

Malfunction Table

Error Codes on Display

• E1: Humidity sensor is damaged.
• E2: Temperature sensor is damaged.

Specifications

Wi-Fi Radio Equipment

• Model: R-9920
• Standard: IEEE 802.11 b/g/n
• Antenna Type: PCB antenna
• Frequency: 2.4 GHz
• Maximum Power: 20 dBm max.
• Dimensions: 18*23.5*3.1 mm
• Operating Temperature: -20°C to 85°C
• Operating Humidity: 10% to 85%
• Power: DC 3V-3.6V

Technical Specifications

• Rated Voltage: 220-240 V
• Rated Frequency: 50 Hz
• Rated Power: 320 W
• Water Tank Volume: 6.5 L
• Operating Temperature: 5-32°C
• Refrigerant: R-290

Changes to text and technical data are reserved.

EU Declaration of Conformity

Ningbo Fuda Intelligent Technology Co., Ltd. hereby declares that the radio equipment type R-9920 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: www.rohnson.eu.

Disposal Information

Packaging

Dispose of used packaging materials at designated municipal waste collection points.

Disposal of Used Electrical and Electronic Equipment

This symbol on products or accompanying documents means that used electrical and electronic products must not be mixed with general household waste. For proper disposal, recovery, and recycling, take these products to designated collection points. In some EU or European countries, you may return products to your local retailer when purchasing an equivalent new product. Proper disposal helps conserve valuable natural resources and prevents potential negative impacts on the environment and human health.

This product complies with all essential requirements of the EU directives applicable to it.