DB20E - Humidifier Cotech - Free user manual and instructions

Product Type	Dehumidifier
Brand	Cotech
Model	DB20E
Extraction Capacity	20 L/day (at 30°C, 80% humidity)
Power Supply	220–240 V, 50 Hz
Power Consumption	370 W / 1.7 A
Max Air Flow	150 m³/h
Compressor Type	Rotary compressor
Coolant	R134a
Operating Temperature	+15°C to +35°C (do not use below +5°C)
Water Tank Capacity	5.5 L
Dimensions (W x D x H)	410 x 210 x 550 mm
Weight	12.5 kg
Humidity Settings	Continuous, 50%, 60%, 70%, 80%
Fan Speeds	High and Low
Timer	1–24 hours
Continuous Drainage	Yes, via 12 mm internal diameter hose (not included)
Air Filter	Washable pre-filter + active carbon filter (replaceable)
Display	Digital with humidity level, temperature, and indicator symbols
Safety Features	Auto shut-off when tank full; defrost function; child supervision required
Wheels	Yes, for mobility

Frequently Asked Questions - DB20E Cotech

Why does the dehumidifier not extract water during winter/spring?

In winter and spring, the ambient humidity is often low (<40%). The dehumidifier only extracts water when the room humidity is above the set level. If the humidity is already low, the appliance will not operate.

How do I set the desired humidity level?

Press the HUM button (6) to cycle through: Continuous dehumidifying, 50%, 60%, 70%, or 80% relative humidity. The display shows the set value.

What does the flashing water drop symbol mean?

The flashing water drop symbol indicates that the defrost function is active. This prevents frost buildup on the cooling element at low temperatures.

How do I empty the water tank?

When the tank is full, the full tank symbol flashes and a beep sounds. Turn off the appliance, pull the tank straight out by the handle, empty it, and reinsert it until the symbol turns off.

Can I use a continuous drain hose?

Yes. Remove the plastic plug from the drainage hole (rear) and attach a hose with an internal diameter of 12 mm (not included). Ensure the hose is free-flowing and does not freeze in cold weather.

How do I clean the air filter?

Press the upper corner of the front grille (at the 'Press' mark) to remove it. The washable filter can be vacuumed or washed with mild detergent. The active carbon filter cannot be washed and should be replaced every 6 months or as needed.

Why is the water level window illuminated red?

The red light indicates that the water tank is full or not correctly inserted. Empty the tank and reinsert it properly. If the light stays on, check that the tank is fully seated.

What should I do if the dehumidifier is abnormally loud?

Ensure the appliance is on a level surface. Check for any damage. Abnormal noise may also be caused by a loose filter or foreign objects.

Can I use the dehumidifier in a room below +5°C?

No. The dehumidifier must not be used at temperatures below +5°C as it may cause frost buildup and damage the compressor.

How do I display the ambient temperature?

Hold the HUM button (6) for at least 2 seconds. The display will show the ambient temperature in degrees Celsius.

USER MANUAL DB20E Cotech

White CO TECH air purifier device with ventilation grilles and control panel (no visible text or symbols on body)

Art.no Model

18-2358 DB20E-UK

36-4377 DB20E

Ver. 201110

clas ohlson

20 I Dehumidifier

Art.no 18-2358 Model DB20E-UK

36-4377 DB20E

Please read the entire instruction manual before use and save it for future reference. We reserve the right for any errors in text or images and for making any necessary technical changes to this document. If you should have any questions concerning technical problems please contact our Customer Services.

N.B.

Note:

• The (relative) humidity of air is usually expressed as a percentage and is a measure of how much water the air contains at a certain temperature.
• Humidity is low during the winter/spring. If the appliance does not extract water from the air it might be because there is not enough humidity for the appliance to operate.
• The appliance can extract a lot of water or a very little water, depending on the humidity of the room.
• If the humidity of the room is 40 % and the appliance is set to maintain a humidity level of 60 %, the appliance will not operate.

Safety Instructions

• The appliance must always stand upright with the wheels underneath.
• The appliance must stand upright for at least 1 hour before it is used for the first time. The same applies after the appliance has been moved or cleaned, etc.
• Never use the appliance if the flex, plug or any other part is damaged or is not working properly. Never try to repair the appliance yourself. Leave it to a professional.
• The appliance must not be covered in any way. Make sure that no foreign objects cover or block the air inlet or outlet. Blockages can lead to fires, electric shocks or damage to the product.
• Never use the appliance in areas where flammable liquids/materials or gases (petrol, solvents, gas cylinders, etc.) are stored or used.
• Unplug the appliance from the wall socket when it is not in use. Never use the mains lead to turn the appliance on or off. The appliance should only be controlled using the ON/OFF button (7).
• When moving the appliance: turn it off using the ON/OFF button, unplug the mains lead and empty the water tank.
• Never expose the appliance to running water or other liquids. Liquid coming in contact with electric components can be extremely hazardous.
• This product must not be used by children or persons with reduced physical, sensory or mental capabilities or lack of sufficient experience and knowledge, unless they have been given supervision or instruction.
  • Children being supervised not to play with the appliance.

Product description

The appliance draws in humid air from the surroundings and channels it past a cooling element. The water in the air condenses and runs down into the water tank. The air is then warmed up again before it is blown out.

Buttons and functions

Front

1. Control panel
2. Front grille/air intake
3. Water level window
4. Handle
5. Water tank

Back

1. Air outlet cover
2. Air outlet
3. Back
4. Hole for continuous drainage
5. Wheel
6. Mains lead

Control panel

1. (no function)
2. (no function)
3. TIMER
4. Display window
5. Fan speed
6. Humidity level
7. ON/OFF - ⏻

Display window

1. Shows your chosen settings. Continuous operation for to maintain 50%, 60%, 70% or 80% humidity.

2. Shows ambient humidity.

ambient humidity is 50–70 % (good).

ambient humidity is 30–50 % or 70–80 % (too low/high).

ambient humidity is over 80 % (very high).

1. The compressor is in operation. If the defrost function is activated, the water drop symbol will flash. The defrost function prevents frost from building up inside the appliance at low temperatures.

he compressor is not in operation.

The water tank is full.

1. Ambient temperature, to display temperature in degrees Celsius (°C) hold in the HUM button (6) for at least 2 seconds.

2. Fan speed: 🎨 = high speed, 🔍 low speed

3. Timer 1–24 hours.

Operation

IMPORTANT:

This dehumidifier must not be used at temperatures below +5 °C.

1. Connect the appliance to a permanently installed 230 V wall socket.
2. Turn the appliance on using the ON/OFF button (7). The compressor will start and operate continuously.
3. Press the HUM button (6) to select the type of operation: Continuous dehumidifying or to reach 50 %, 60 %, 70 % or 80 % humidity.
4. Press the fan speed button to select either High or Low speed.
5. Turn the appliance of by pressing the ON/OFF button again.
6. The direction of the air output can be adjusted by hand (see fig.).

Line drawing of a device with a curved top and side panel, showing a rotation arrow (no text or symbols)

Placement

1. Make sure that the appliance is standing firmly on an even surface.
2. The appliance should be placed where it can draw in air from the entire house.
3. All interior doors should be opened. Close exterior doors and windows.
4. If any part of your house suffers from severe humidity, the appliance can be placed there first and then moved to another part of the house later.
5. Position the appliance where the air can circulate freely, leave a space of at least 10 cm around the perimeter.
6. The appliance is fitted with wheels for extra mobility. If the appliance is to be relocated, make sure that it is turned off and emptied of all water.
7. Never place the appliance next to a radiator or heating appliance.

Emptying

When the water tank is full the compressor will stop operating to prevent it from becoming damaged and:

• The symbol that indicates that the water tank is full 🎨 will start to flash.
• The appliance will emit an audible warning signal. To turn the warning signal off, turn the appliance off using the ON/OFF button.
• The water level window will be illuminated by a red light.
• To empty the tank: grasp the handle of the tank and pull the tank out straight (see fig.).

After emptying the tank: Return the tank to its original position and make sure that it is correctly inserted by checking that the symbol turns off. The appliance is now ready for use.

Note! If the water tank is not correctly inserted, the water level window will shine red and the warning signal will sound.

Continuous drainage

When the appliance is used in a room with high humidity, the water tank will need to be emptied frequently and it might be more practical to set the appliance up for continuous drainage.

Procedure:

1. Remove the plastic plug from the hole for continuous drainage (9) and connect a water hose with an internal diameter of 12 mm to the outlet (see fig.).

N.B. A hose is not supplied with the appliance.

1. Make sure that the water is always able to run freely through the hose.

N.B. In case of cold weather, make sure the drain hose does not freeze.

Line drawing of a portable air conditioner unit with a separate box (no text or symbols)

Technical line drawing of a portable air purifier with two circular components inserted, shown in two views (no text or symbols)

Care and maintenance

Use a damp cloth to clean the outer casing.

Never use solvents or corrosive cleaning products.

Cleaning the air filter:

Gently press the upper corner of the front grille (2), (at the "Press" mark) and remove the grille. The filter is attached to the inside of the grille.

graph LR
    A["Grille"] --> B["Washable filter"]
    B --> C["Active carbon filter"]
    C --> D["Filter fixer"]
    D --> E["Output device"]

- The washable filter: Use a vacuum cleaner to clean the filter. If it is very dirty wash it in warm water with a mild detergent.

- The active carbon filter: This filter cannot be cleaned; its useful life varies depending on the environment the appliance is used in. The filter should be checked on a regular basis, (every 6 months) and changed if necessary.

Storage

If the appliance is not to be used for a long time

• Turn off the appliance and pull out the plug from the wall socket.
  • Empty the water tank and dry it.
  • Cover the appliance and store it in a place where it is not exposed to direct sunlight.

Troubleshooting

The appliance does not start.	Is it plugged into a wall socket?Is the wall socket live?Is the ON/OFF button set to ON?Is the water tank inserted correctly and empty?Make sure that the air inlet and outlet are not blocked.
The appliance starts but does not extract moisture.	Does the air filter need cleaning?Make sure that the air inlet and outlet are not blocked.Is the humidity of the room already at a low level?(This is normal in winter and spring)
The appliance operates for unusually long periods.	Is there a window or door open?Is there anything in the room that creates a lot of humidity?
The appliance is abnormally loud.	Make sure the appliance is standing on a level surface.Check that the appliance is not damaged in any way.

Disposal

Follow local ordinances when disposing of this product. If you are unsure of how to dispose of this product, please contact your local authority.

Specifications

Power supply 220–240 V, 50 Hz

Conditions for stated values Ambient temp. +30 °C, humidity 80 %

Extraction capacity 20 l/day

Current draw* 370 W/1.7 A

Max air flow volume 150 m³/h

Compressor type Rotary compressor

Coolant R134a

Operating temperature +15 °C to +35 °C

Water tank 5.5 l

External dimensions (WxDxH) 410 x 210 x 550 mm

Weight 12.5 kg

*This value can vary for technical reasons; refer to the markings on the appliance.

Luftavfuktare 20 l

Art.nr 18-2358 Modell DB20E-UK

36-4377 DB20E

Baksida

Kontrollpanel

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Placering

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Technical line drawing of a portable air purifier with two circular components inserted, shown in two views (no text or symbols)

Bakside

Kontrollpanel

Line drawing of a device with a curved top and side panel, showing a rotation arrow (no text or symbols)

Plassering

Line drawing of a portable air conditioner unit with a separate internal box (no text or symbols)

Technical line drawing of a portable air purifier with two circular components inserted, shown in two views (no text or symbols)

Takapuoli

Ohjauspaneeli

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Sijoitus

Line drawing of a portable air conditioner unit with a separate box (no text or symbols)

Technical line drawing of a portable electronic device with two circular components inserted, shown in two views (no text or symbols present)

Huolto ja ylläpito

For consumer contact, please visit

www.clasohlson.co.uk and click on

customer service.

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