netta OL20-BD030AM User manual

20L/25L
DEHUMIDIFIER
---------------------------------------------------------------------------------------------------
EN USER INSTRUCTION & OPERATION MANUAL
ES MANUAL DE INSTRUCCIONES Y OPERACIONES PARA EL
USUARIO
DE BENUTZERANLEITUNG & BETRIEBSANLEITUNG
FR MANUEL D'UTILISATION ET D'UTILISATION
IT ISTRUZIONI PER L'USO E MANUALE OPERATIVO
TIMER
0-24 HOURS
LOW NOISE
≤45dB(A)
CHILD-LOCK
FUNCTION
POWER
CORD
1.5M
EN

Thank you for purchasing this NETTA product.
Please read the user manual carefully before operating this
appliance.
We will update our instruction manuals if necessary.
For the most up-to-date user manual, please visit our official
website: www.nettadirect.com.
You can download a copy of up to date user manuals at any time
in electronic format. We do not supply you with a paper-based
user manual after each revision.
Require a larger version of this
Instruction Manual?
Please download electronically
from our website and use PDF
reader on your device to enlarge
the text if needed.
www.nettadirect.com

Safety and Warnings
Intended Use
NETTA Design is for domestic and
indoor use only. This product is not
intended for use by people who have
lack of experience and knowledge or
have reduced ability, or sensory and
mental capabilities.
General Warnings
The dehumidifier is used to remove excessive moisture from the air.
The resulting reduction in relative humidity protects buildings and their
contents from the adverse effects of excess humidity.
The environmentally friendly R290 is used as the refrigerant. R290 has
no damaging influence on the ozone layer (ODP), a negligible
greenhouse effect (GWP) and is available worldwide. Because of its
efficient energy properties, R290 is highly suitable as a coolant for this
application. Special precautions must be taken into consideration due
to the coolant's high flammability.
Regular Check-Ups
Ensure the power cable and
plug are not damaged before
plugging into a socket.
Check all the knobs are
functioning correctly.

General Warnings
•This appliance can be used by children aged from 8 years and
above, by people with reduced physical, sensory or mental
capabilities and/or by people with lack of experience or knowledge
if they have been given supervision and/or instruction concerning
operating the device in a safe manner and understanding the
hazards involved. Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children
without supervision.
•This unit is designed only for use with R-290 (propane) gas as the
designated refrigerant.
•The refrigerant loop is sealed. Only a qualified technician should
attempt to service this device.
•Do not discharge the refrigerant into the atmosphere.
•R-290 (propane) is flammable and heavier than air.
•It collects first in low areas but can be circulated by fans.
•If propane gas is present or even suspected, do not allow untrained
personnel to attempt to find the cause.
•The propane gas used in the unit has no odour.
•The lack of smell does not indicate a gas leak.
•If a leak is detected, immediately evacuate all people from the area,
ventilate the room and contact the local fire department to advise
them that a propane leak has occurred.
•Do not let any people back into the room until a qualified service
technician has advised that it is safe to do so.

•No open flames, cigarettes or other possible sources of ignition
should be used in the vicinity of the device.
•Component parts are designed for propane. They should only be
replaced with identical repair parts.
•Failure to abide by these warnings could result in an explosion,
death, injury and/or property damage.
•If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or a similarly qualified person in
order to avoid a hazard.
•The appliance should be disconnected from the power source
during cleaning and maintenance.
•Always operate the unit from a power source of equal voltage,
frequency and rating as indicated on the product identification plate.
•Always use a power outlet which is grounded.
•Unplug the power cord when cleaning or when not in use.
•Do not operate with wet hands. Prevent water from spilling onto the
unit.
•Do not immerse or expose the unit to rain, moisture, or any other
liquids.
•Do not leave the unit running whilst unattended.
•Do not tilt or turn over the unit.
•Do not unplug while the unit is operating. Do not unplug by pulling
on the power cord.
•Do not use an extension cord or an adapter plug.
•Do not put objects on the unit.

•Do not climb or sit on the unit.
•Do not insert fingers or other objects into the air outlet.
•Do not touch the air inlet or the aluminium fins of the unit.
•Do not operate the unit if it has been dropped, damaged, or is
showing signs of product malfunction.
•Do not clean the appliance with any chemicals.
•Ensure the unit is far away from fire, inflammable, or explosive
objects.
•The unit shall be installed in accordance with nation wiring
regulations.
•Do not use means to accelerate the defrosting process or to clean,
other than those recommended by the manufacturer.
•The appliance shall be stored in a room without any continuous
operation sources (e.g., open flames, an operating gas appliance,
electric heaters).
•The appliance shall be stored to prevent mechanical damage from
occurring.
•Do not pierce or burn, even after use.
•Be aware that refrigerants may not be odorous.
•Pipework shall be protected from physical damage and shall not be
installed in an unventilated space, if that space is smaller than 4m².
•Compliance with national gas regulations shall be observed.
•Keep any required ventilation openings clear of obstruction.

•The appliance shall be stored in a well-ventilated area where the
room size corresponds to the room area specified for operation.
•Any person who is involved with working or breaking into a
refrigerant circuit should hold a current valid certificate from an
industry-accredited assessment authority, which authorizes the
competence to handle refrigerants safely in according with an
industry-recognised assessment specification.
•Servicing shall only be performed as recommended by the
equipment manufacturer. Maintenance and repair requiring the
assistance of other skilled personnel shall be carried out under the
supervision of the person competent in the use of flammable
refrigerants.
•Prior to beginning work on systems containing flammable
refrigerants, safety checks are necessary to ensure that the risk of
ignition is minimised. For repair to the refrigerating system, the
following precautions shall be complied with prior to conducting
work on the system:
•Work shall be undertaken under a controlled procedure as to
minimise the risk of a flammable gas being present while the work
is being performed.
•All maintenance staff and others working in the area shall be
instructed on the nature of work being carried out. Work in confined
spaces shall be avoided. The area around the workspace shall be
sectioned off. Ensure that the conditions within the area have been
made safe by control of flammable material.
•The area shall be checked with an appropriate refrigerant detector
prior to and during work, to ensure the technician is aware of
potentially flammable atmospheres. Ensure that the leak detection
equipment being used is suitable for use with flammable
refrigerants i.e., no sparking, adequately sealed.

•If any hot work is to be conducted on the refrigeration equipment or
any associated parts, appropriate fire extinguishing equipment shall
be available to hand. Use a dry powder or CO2 fire extinguisher.
•No person carrying out work in relation to a refrigerant system
which involves exposing any pipework that contains or has
contained flammable refrigerant shall use any sources of ignition in
such a manner that it may lead to the risk of fire or explosion. All
possible ignition sources, including cigarette smoking, should be
kept sufficiently far away from the site of installation, repair,
removal and/or disposal, during which flammable refrigerant can
possibly be released to the surrounding space. Prior to work taking
place, the area around the equipment is to be surveyed to make
sure that there are no flammable hazards or ignition risks. “No
Smoking” signs should be displayed.
•Ensure that the area is in the open or that it is adequately ventilated
before breaking into the system or conducting any hot work. A
degree of ventilation shall continue during the period that the work
is carried out. The ventilation should safely disperse any released
refrigerant and preferably expel it externally into the atmosphere.
•When electrical components are being charged, they shall be fit for
purpose and to the correct specification. At all times, the instruction
manual should be followed. If in doubt, consult the retailer. The
following checks shall be applied to installations using flammable
refrigerants: the charge size is in accordance with the room size
within which the refrigerant containing parts are installed; the
ventilation machinery and outlets are operating adequately and are
not obstructed; if an indirect refrigerating circuit is being used, the
secondary circuit shall be checked for the presence of refrigerants;
markings on the equipment continue to be visible and legible;
refrigeration pipe or components are installed in a position where
they are unlikely to be exposed to any substance which may
corrode refrigerant containing components, unless the components
are constructed of materials which are inherently resistant to being
corroded or are suitably protected against being corroded.

Product Overview

Installing the Product
Location
Place the unit on a firm, level surface in an area with at least
30cm of free space around it to allow proper air circulation.
Never install the unit where it could be subject to heat sources
(such as radiators, stoves, etc), in an area where oil or water may
be splashed, direct sunlight, mechanical vibration or shock,
excessive dust, lack of ventilation (such as a bookcase) or an
uneven surface.
WARNING Install the unit in rooms which exceed 4 m².
Do not install the unit in a place where inflammable
gas may leak.
NOTE The manufacture may provide other suitable
example or may provide additional information about the
refrigerant odour.

Installing the Product
Operating the Device Safely
•Check the device after unpacking for any damage or scratches on
it.
•Operate this unit in an ambient temperature from 5°C to 35°C.
•Do not use outdoors. This device is intended for indoor residential
applications only.
•Do not operate near walls, curtains, or other objects that may block
the air inlet and outlet.
•Keep the air inlet and outlet free of obstacles.
•Adjust the wind deflector to the upward direction prior to start-up.
•If tipped more than 45°, allow the unit to sit upright for at least 24
hours before start-up.
•Keep doors and windows closed for better energy saving.
•Do not operate or store the unit in direct sunlight or rain.
•It is normal for the air outlet to feel warm after continuous operation
on hot days.
•Empty the water tank before moving the device.
•Make sure the water tank is fitted correctly or the unit will not
operate properly.
•The device will start up in the mode selected when it was last used.
•There is a protective 3-minute delay of the compressor. Wait 3
minutes for the device to resume dehumidification.

Operating the Product
Three-Colours Indicator Light
•If the ambient humidity is below 45%, the light will show blue.
•If the ambient humidity is between 45%-65%, the light will
show green.
•If the ambient humidity is above 65%, the indicator light will
show red.
Control Panel
Stand-By Button
Press the ‘Stand-By’button to turn the machine on. The default
fan speed is high and the default humidity setting is 50%. When
the machine is running, press the ‘Stand-By’button to turn it off –
the compressor will stop immediately and the fan will shut down
after around 30 seconds.

Mode Button
Press the Mode button to switch between ‘Auto’ and ‘Continuous’
dehumidifying modes.
Auto Mode: When the ambient humidity is more than 3% over
the set humidity, the fan and compressor will start working. When
the ambient humidity is less than 3% over the set humidity, the
fan and compressor will stop working. The fan speed and
humidity setting can be adjusted under ‘Auto’ mode.
Continuous Mode: In this mode, the device will continue to run
on high fan speed and the default humidity setting is 20%. The
fan speed and humidity setting cannot be adjusted.
Sleep/Reset Button
Press the ‘Sleep/Reset’button to activate ‘Sleep’ mode. Press
the button again to turn ‘Sleep’ mode off.
In ‘Sleep’ mode, the fan speed will be switched to low and after
10 seconds, all indicator lights and the display screen will be
switched off.
When the room humidity is less than 57%, the compressor and
the fan will stop working.
When the room humidity is more than 63%, the fan and
compressor will start working.
The fan speed setting function and humidity setting function
cannot be changed in this mode.

In ‘Sleep’ mode, when the water tank is full, the machine will not
alarm but rather the water tank full indicator light will be on (red)
to remind you that the water tank is full and needs emptying.
Press and hold the ‘Sleep/Reset’button for 3 seconds to reset
the air filter. When the machine has worked for 600 hours, the air
filter indicator light will turn on to remind you to clean the air filter.
The machine will not work until you clean and the air filter and
reset the unit.
Timer Button
Press the ‘Timer’button to set the timer function (0-24H). Each
interval lasts 1 hour. Each time you press the ‘Add’ or ‘Minus’
buttons, the value increases or decreases by 1 hour respectively.
The corresponding timing value will be displayed on the screen.
When the device is on, set the timer function to countdown to
turn the device off. When the device is in stand-by mode, set the
timer function to countdown to turn the device on.
After the timer has been set, the timer indicator light will be on
during the timing period. When the timer finishes, the timer
indicator light will turn off.
To cancel the timer function, set the value to “00”. The indicator
light will turn off.
Fan Speed Button
Press this button to switch the fan speed between high and low.
The corresponding indicator light will be on. The fan speed can
only be adjusted in ‘auto’ mode.

Add Button
Press this button to set the timer and humidity levels. To adjust
the humidity, press this button once to add 5% humidity. The
humidity increases in the following sequence: 30% - 35% - 40% -
45% - 50% - 55% - 60% - 65% - 70% - 75% - 80% - 30%.
To adjust the timer, select ‘Timer’ then press this button once to
add 1 hour. The timer increases in the following sequence: 00-
01-02-03-04-05-06-07-08-09-10-11-12-13-14-15-16-17-18-19-20-
21-22-23-24-00.
Minus Button
Press this button to set the timer and humidity levels. To adjust
the humidity, press this button once to lower the humidity by 5%.
The humidity decreases in the following sequence: 80% - 75% -
70% - 65% - 60% - 55% - 50% - 45% - 40% - 35% - 30% - 80%.
To adjust the timer, select ‘Timer’ then press this button once to
decrease by 1 hour. The timer decreases in the following
sequence: 24-23-22-21-20-19-18-17-16-15-14-13-12-11-10-09-
08-07-06-05-04-03-02-01-00-24.
Child-Lock
When the machine is running, press and hold this button for 3
seconds to operate the child-lock function. The indicator light will
be on and you will not be able to operate any other buttons. To
turn the function off, press and hold the button again for 3
seconds. The indicator light will turn off.
Cleaning, Maintenance and Storage

Drainage
There are two ways of removing water collected by the unit.
A. Manual Drainage: Empty the water tank manually.
B. Continuous Drainage: Use gravity to drain water by attaching a
drain hose.
Manual Drainage
The water tank will fill up and shut the unit down once it is full. It
will only run again once you empty the water tank and re-install it.
1. When the water tank is full, the machine will buzz 5 times and
the ‘Water Tank Full’ indicator light will be on.
2. Press the ‘Stand-By’ button to turn off the unit.
3. Pull on the water tank and slide it out of the body of the
dehumidifier.
4. Empty the water into an area with a drain or outside.
5. Clean the inside of the tank as well as the outside.
6. Replace the empty tank back into the unit.
7. Press the power button to resume operation.
8. If the ‘Water Tank Full’ light does not turn off, check that the
float is correctly in place.

Pull out the water tank.
Empty the water tank.
Replace the empty
tank back into the
unit.

Warning!
1. Do not discard the magnets and plastic rivets in the tank.
Otherwise, the dehumidifier cannot be started, or the machine
will not automatically stop working when the water tank is full,
and the condensed water will overflow and possibly cause
damage to your property.
2. If the water tank is dirty, please rinse it with clean water. Avoid
using detergents, steel wire balls, chemical dust removers,
diesel, benzene, etc. otherwise it can cause damage to the
tank which may result in leakage.
Continuous Drainage
1. Take out the PVC drainpipe and straighten it out.
2. Insert one end of the drainpipe into the drain outlet at the top
of the tank and connect the other end to where you want the
condensed water to go.
Drainage Pipe
Warning!
1. Do not block the drainage outlet or pipe. If blocked, the water
may overflow and leak.
2. Do not bend the drainpipe. The height of the drainpipe should
be lower than the drainage outlet.
3. The drainpipe must be firmly connected to the drainage outlet.
4. Do not submerge the end of the drainage pipe into water as
this may cause an ‘air lock’ in the pipe, resulting in an
unsmooth water flow and possible leakage.

Maintenance
Before cleaning and maintaining the machine, be sure to turn off
the machine and unplug the power to avoid electric shock.
Cleaning the Air Filter (Every 2 Weeks)
Dust collects on the filter and restricts the airflow. The restricted
airflow reduces the efficiency of the system and if it becomes
blocked it can cause damage to the unit.
The air filter requires regular cleaning. The air filter is removable
for easy cleaning. Do not operate the unit without an air filter or
the evaporator may be contaminated.
Switch off the unit and remove
the air filter.
Rinse under running water or
use a vacuum to clean the
dust.
Re-assemble
the air filter.

Troubleshooting
SYMPTOM
INSPECTION
SOLUTION
The unit is not
operating.
Check the power
connection is secure.
Insert the power cord
securely into the wall
outlet.
Check if the ‘Water
Tank Full’ indicator
light is on.
Empty the water tank
and re-install
correctly.
Check the room
temperature.
The range of
operating
temperature is 5-
35℃.
There is little
formation of
condensation.
Check if the air filter
is clogged by dust.
Clean the air filter.
Check if the air inlet
/outlet is obstructed.
Remove the
obstruction from the
air inlet/outlet.
Check if the room
temperature is below
20℃.
This is normal. The
device will defrost in
low temperature
environments.
Set humidity level is
higher than the
current humidity
value.
Set the humidity level
below the current
humidity value.
Water Leakage.
Overflow when
moving the unit.
Empty the water tank
before transporting.
Check if the
drainpipe is kinked or
bent.
Straighten the hose
to avoid a trap
existing.
Excessive Noise.
Check if the unit is
securely positioned.
Place the unit on
horizontal and firm
ground.
Check for any loose,
vibrating parts.
Secure and tighten
the loose parts.
Noise sounds like
water flowing.
Noise is coming from
flowing refrigerant.
This is normal.