HOMCOM 821-031V90 User manual

1
INSTRUCTION MANUAL
IN230500466V01_ES_PT
821-031V90
IMPORTANT, RETAIN FOR FUTURE REFERENCE: READ CAREFULLY
Dehumidifier
EN

2
CONTENTS
SAFETY INSTRUCTIONS……………………………………………………………………....3
PRECAUTIONS…………………………………………………………………………………..5
PARTS……………………………………………………………………………………………..9
CONTROL PANEL ………………………………………………………………………….…...9
OPERATION…………………………………………………………………………………….10
DRAINAGE………………………………………………………………………………………11
FILTER CLEANING………………………………………………………............................12
MAINTENANCE………………………………………………………………………………...13
TROUBLESHOOTING…………………………………………………………………………14
APPENDIX…………………………………………………………………………………….…18

3
Thank you for choosing this dehumidifier. Please read this instruction manual carefully
before installing this appliance. Keep this manual safe for future reference.
Read all instructions carefully before using or repairing this dehumidifier.
The refrigerant used in this dehumidifier is the environmentally friendly hydrocarbon
R290, which is odourless and ozone-free.
Note: Drawings provided in the manual may differ from the actual appliance, so please
refer to the actual appliance for accurate information.
Safety instructions
Warning
● Do not use any methods, which are not recommended by the manufacturer, to speed
up defrosting or cleaning.
● Store the appliance in a room WITHOUT continuous ignition sources, such as open
flames, operating gas appliances or electric heaters.
● Do not puncture or burn the appliance.
● Note that refrigerants may not have an odour.
● Ensure the appliance is installed, operated and stored in a room with a floor area
larger than 2m².
● Do not obstruct any required ventilation openings.
● Only service the appliance as recommended by the manufacturer.
● Store the appliance in a properly ventilated area, where the room size corresponds to
the specified operation area.
● Anyone working on breaking into a refrigerant circuit should have a currently valid
certificate from an industry-accredited assessment authority, which authorises their
competence to handle refrigerants safely.
● Maintenance and repair requiring the assistance of other skilled personnel should be
supervised by someone competent in the use of flammable refrigerants.
● All work affecting safety equipment must be carried out by competent individuals.
● When moving the appliance, be careful to avoid bumping and causing leakage in the
refrigeration line.
Flammable material.
This appliance
contains R290/
Propane a
flammable
refrigerant
Refer
operators
manual
Read
technical
manual
Read
operators
manual
Notes:
● This dehumidifier is suitable for indoor use only. Do not use outdoors.
● When installing the dehumidifier, follow local grid interconnection rules and ensure
that it is properly grounded. For any questions on electrical installation, refer to the
manufacturer's instructions or consult with a professional electrician. If necessary,
hire a professional electrician to install it for you.
● Place the appliance on a flat, dry surface. Ensure there is at least 30cm of space
between the appliance and surrounding objects (walls, furniture, curtains, etc).

4
● After the dehumidifier is installed, ensure the power plug is intact and firmly plugged
into the power outlet. Place the power cord neatly to prevent someone from tripping
over it or pulling it out of the socket.
● Do not put any object into the air inlet and outlet of the dehumidifier. Keep the air inlet
and outlet free from obstruction.
● When installing drainage pipes, ensure they are properly connected and are not
twisted or bent.
● When moving the appliance, keep it in an upright position.
● Keep the appliance away from gasoline, flammable gas, stoves and other heat
sources.
● Do not disassemble, overhaul or modify the appliance on your own. This can cause
the machine to malfunction and may harm individuals or property. For damages or
failure to the appliance, get the manufacturer or a professional to repair it. Attempting
to repair the machine yourself can be dangerous.
● Do not pull the cord to turn off the appliance.
● To prevent water or other liquids from spilling into the air conditioning, do not place
cups or other objects on the appliance.
● Do not use insecticide sprays or other flammable substances near the dehumidifier.
● Do not clean this appliance with chemical solvents, such as gasoline or alcohol. To
clean the appliance, you must disconnect it from the power supply first, then clean it
with a slightly damp cloth. If it is really dirty, scrub the appliance with a mild detergent.
● Under guided supervision, this appliance can be used by children aged eight years
and above, provided they understand the potential risks and hazards. Under guided
supervision, this appliance can be used with persons with disabilities or persons
without experience, provided they understand the potential risks and hazards.
● Damaged supply cords must be replaced by the manufacturer, its service agent or
similarly qualified personnel to avoid hazards.
● Install this appliance following national wiring regulations.
Transportation, marking and storage for units
● Transport: Comply with all transport regulations when transporting equipment
containing flammable refrigerants.
● Marking: Comply with local regulations for marking equipment with signs, which
indicate the presence of flammable refrigerants.
● Disposal: Comply with national regulations for the safe disposal of equipment
containing flammable refrigerants.
● Storage: Store equipment following manufacturer's instructions, ensuring safe and
effective operation.
● Storage of packed equipment: Protect the equipment inside the package from
mechanical damage, so it does not leak.

5
×
×
PRECAUTIONS
What the signs mean:
Forbidden
For the safety of you and others, this operation is strictly banned.
Must obey
For the safety of you and others, follow this operation carefully.
Operate this machine under a power
supply of 220-240VAC/50Hz. If the
voltage is higher or lower by 10%, the
appliance will not work properly and it
could burn out the fuse or damage the
appliance.
In such cases, a voltage regulator is
recommended.
The unit operates within a temperature
range of 5-35. Going over this limit
will damage the appliance.
To reduce vibration and noise, keep
the appliance upright and on a flat
surface.
If there are damages to the power cord
or any of the connections, do not use
the appliance.
To avoid the risk of fire, electric shock
or injury to persons and property, do
not use other electrical appliances in
the same power outlet as this
appliance.
Keep this appliance away from other
heat sources and gas appliances.
To avoid injury and property damage,
this appliance must be repaired by the
manufacturer or professional
personnel.

6
To prevent an electric shock, do not
submerge this appliance in water.
This appliance is for household use
only. Do not use for any other
purposes.
Do not place anything on top of the
appliance.
To avoid water leaking from the tank,
do not tilt the appliance.
When not in use for long periods,
unplug the appliance.
Do not use insecticidal sprays or other
flammable substances near this unit.
Do not scratch the appliance with
sharp objects.
Do not wipe the unit with chemical
solvents such as benzene, gasoline,
alcohol, etc. If the body is dirty, please
use a neutral detergent to wipe clean.

7
×
If an abnormality occurs (e.g. a
burning smell or smoke appearing),
turn off and unplug the appliance.
Contact a specialist for service.
If you use the appliance next to a gas
appliance for long periods, keep the
windows open for ventilation.
If you are not going to use the
appliance for long periods, place the
appliance in 'Dry' mode to prevent
mould.
Do not pull, twist or hang and clip
objects to the power cord.
Keep children away from this unit. Keep curtains, clothes, towels and
other objects away from the appliance,
so the air outlet does not get
obstructed, which reduces the
dehumidification capacity and
increases the noise level.
Never rinse the appliance with water. Do not expose the continuous drain
pipes to the outdoors, especially in the
winter.

8
×
NOTE
When using the continuous drainage function, ensure the drain pipe
is lower than the drain port to avoid water leakage
Keep the appliance at least 30cm away from walls and other objects.
Never point the appliance towards pets and plants for long periods.
Keep this appliance out of direct sunlight, as this will lower the
dehumidification efficiency.
×

9
Product parts
1. Front shell
2. Right side panel
3. Water tank
4. Control panel
5. Filter
6. Continuous drain port
7. Rear shell
8. Air outlet
9. Left side panel
10. Caster
NOTE:
All the pictures in the manual are for
explanatory purposes only. The actual
shape of the unit you purchased may be
slightly different, but the operations
and functions are the same.
CONTROL PANEL

10
BUTTONS
● POWER: In standby mode, press the 'Power' button to turn on the machine. The
power indicator will turn green. Press again to turn the appliance off. The power
indicator will turn red.
● MODES: Fan, Eco, Dryer, Auto and Cont. (Dehumidification).
● DOWN: Reduce the humidity or timing.
● UP: Increase the humidity or timing.
● FAN: The fan runs at a high or low speed.
● TIMER: Set the timer and query timer. Press again to cancel the timer.
● CHILD-LOCK: Press TIMER' and 'SPEED' simultaneously to start and stop the child-
lock function.
OPERATIONS
Ensure the unit’s power matches the local power grid.
MODES
FAN MODE
Under this mode:
● The compressor will not work.
● The fan works at a low speed by default for ventilation only. The speed is adjustable.
● You can not set the humidity level.
● The ambient humidity level (30-90%RH) will show on the display panel.
ECO MODE
Under this mode:
● The default humidity level is Rh60%.
● If the ambient humidity is equal to or greater than 60%, the unit will function as a
dehumidifier. The fan speed cannot be adjusted.
● If the ambient humidity is less than 60%, the unit will function as a fan. The fan speed
is cannot be adjusted.
● The humidity level cannot be adjusted.
DRY MODE
Under this mode:
● The compressor will work continuously. The fan runs at a high speed, regardless of
room humidity.
● The compressor has a three-minute delay protection function.
● Fan speed and humidity level cannot be adjusted.
● Ambient level (30-90%RH) will show on the display panel.
AUTO MODE
Under this mode:
● If the ambient humidity is equal to or greater than 70%, the appliance will operate as a
strong dehumidifier. The fan speed cannot be adjusted.
● If the ambient humidity is between 50-70%, the unit will operate as a weak
dehumidifier. The fan speed cannot be adjusted.
● If the ambient humidity is less than 50%, the unit will work in fan mode at low speed.
The fan speed cannot be adjusted.

11
● The ambient humidity level (30-90%RH) will show on the display panel. The humidity
cannot be adjusted.
DEHUMIDIFICATION MODE
Under this mode:
● The appliance will work to reduce humidity when turned on for the first time or
selected through mode conversion.
● The fan speed is set to high by default.
● You can adjust the humidity level (within the range of 35-85% by pressing the UP and
DOWN buttons).
FUNCTIONS
ANTI-MILDEW FUNCTION
When turning the appliance off, if the machine is not in fan mode, pressing the power
button will cause the machine to continue running for one minute before shutting down.
This is not a malfunction.
TIMER FUNCTION
To use this function, press the 'TIMER' button. This function will automatically turn the
appliance off while running. It can also automatically turn the appliance on while on
standby.
Set a timer between 1-24 hours by pressing the 'UP' or 'DOWN' buttons, which
increases/decreases the time by one hour.
CHILD-LOCK FUNCTION
Press the 'TIMER' and 'SPEED' buttons simultaneously to activate the child lock. The
indicator will light and no buttons will work. To turn off the function, press 'TIMER' and
'SPEED' again.
WATER FULL ALARM
When the water tank is full:
● The sign will flash and the buzzer will make a sound.
● The tank should be drained and put back into place, so the appliance can operate
normally.
NOTE: If you set the humidity above the ambient humidity, the dehumidifier will not
work.
DRAINAGE
To manually drain the tank:
● Place your finger in the depression of the tank and gently remove it to avoid leakage.
● Pour out the water, then put the tank back and restart the appliance.

12
NOTE:
Ensure the tank cover is tight and the floater rotates properly, then push the tank into its
correct place.
For continuous drainage:
● Connect a continuous drainage pipe (inner diameter: 10mm).
● This pipe does not come with the appliance. Purchase it separately.
This is ideal if you do not want to drain the tank frequently.
Step 1
As shown in the picture, find the drain port and pull out the
rubber plug.
Step 2
Firmly connect the drain pipe to the drain port.
Step 3
Before use, ensure the water pipe is firmly connected to avoid
water leakage.
FILTER CLEANING
Note: The machine has a removable and washable filter. Remove the filter, put it in
water to clean or rinse, then place it back. We recommend cleaning at least once every
two weeks.

13
If the filter is only slightly dirty, it can be cleaned with a vacuum
cleaner.
If the filter is very dirty, wash with water, ensuring the
temperature does not exceed 40℃.
Note: The filter needs to dry naturally to prevent deformation. Never use a dryer. Keep
the filter away from alcohol, gasoline, benzene and other chemical solvents.
MAINTENANCE
1. Before cleaning and maintenance, unplug the appliance to avoid electric shock.
2. If not in use for long periods, unplug the appliance.
3. Do not use alcohol, gasoline, benzene and other chemical solvents to clean the
appliance.
Cleaning the appliance:
For cleaning the water tank, use cold or warm water to rinse out any remaining water to
prevent mould. If the appliance is dirty, use a mild detergent to clean it.
Nylon filter cleaning
The filter should be cleaned once every two weeks, using water that does not exceed
40℃.
Storage
After drained and cleaned, place the power cord in the water tank. Pack the unit inside a
plastic bag to avoid dust and other debris.

14
TROUBLESHOOTING
If you have problems with your dehumidifier, check the table below for possible
solutions.
Problem Cause Solution
The appliance
produces hot air. Dehumidifier's cold air turns hot
by absorbing heat in the
compressor.
This is normal. No action
needed.
The unit does not turn
on.
Unit is not connected to the
mains.
Water tank is full.
Water tank is not installed
correctly.
Connect the unit to the
mains.
Ensure the tank is properly
installed.
Dehumidification does
not work.
The room is already dry and cool.
The air outlet or intake is blocked.
The dehumidifier's capacity
decreases during the dryer
seasons.
Clear the outlet or intake.
Air filter is blocked. Clean the filter as described
in this manual.
There is no wind.
The appliance is noisy.
The appliance is titled or
unstable.
Filter is blocked.
Ensure the unit is upright on
a flat and stable surface.
Clean the filter as described
in this manual.
NOTE:
Do not attempt to disassemble or repair the appliance yourself. Improper repairs can
cause injury to persons and property damage.
If there is a problem that is not listed or the solution did not work, please contact the
manufacturer, its service agent or similarly qualified personnel.
1. Information on servicing
Before working on flammable refrigerants, safety checks are necessary to minimise
ignition risk. The following precautions must be taken before repairing the refrigerating
system:
● To reduce the risk of flammable gas or vapour during work, a controlled procedure
must be followed.
● Ensure all maintenance staff and others working in the area are aware of the work
being carried out. Avoid working in confined spaces, section off the area around the
workspace and ensure conditions within the area are safe.
● To detect potentially flammable atmospheres, check the area with an appropriate
refrigerant detector (non-sparking and tightly sealed) before and during work.
● Have appropriate fire extinguishing equipment available if any hot work is being
conducted.
● Keep all possible ignition sources, including cigarette smoking, sufficiently far away
from the site of installation, repair, removal and disposal, as flammable refrigerant
could be released into the surrounding space. Before work, check the area around the

15
equipment to ensure there are no flammable hazards or ignition risks. 'No Smoking'
signs must be displayed in the working area.
● Before breaking into the system or conducting hot work, ensure the area is in the open
and properly ventilated, so any released refrigerant can be safely dispersed.
● When changing electrical components, ensure they are fit for purpose and have the
correct specification.
● Follow the below maintenance and service guidelines. If in doubt, contact the
manufacturer's technical department for assistance.
a) Charge size must be appropriate for the room size where refrigerant-containing
parts are installed.
b) Ventilation machinery and outlets must be functioning properly and not be
obstructed.
c) If an indirect refrigerating circuit is used, check the secondary circuit for a
refrigerant.
d) Equipment markings should be visible and legible. Illegible markings and signs
must be corrected.
e) Refrigeration pipes or components must be installed in a way that minimises
exposure to substances, which could be corrosive.
● During repairs and maintenance for electrical components, initial safety checks and
inspections must be performed. If there is a fault that could compromise safety, the
electrical supply must not be connected until the issue is resolved. If the fault cannot
be fixed immediately, an adequate temprorary solution should be used - the owner of
the equipment must be informed.
Initial safety checks include:
a) Ensuring capacitors are safely discharged to avoid sparking.
b) Ensuring no live electrical components and wiring are exposed while charging,
recovering or purging the system.
c) Ensuring there is continuity of earth bonding.
2. Repairs to sealed components
1) When repairing sealed components, all electrical supplies must be disconnected
from the equipment before removing sealed covers, etc. If it is necessary to have an
electrical supply connected during servicing, then a permanent leak detection must
be located at the most critical point to warn of any hazardous situations.
2) When working on electrical components, ensure the casing is not altered in any way.
This includes damage to cables, an excessive number of connections, terminals not
matching original specifications, damage to seals and incorrect fitting of glands. This
is to ensure the level of protection is not affected. Ensure the apparatus is mounted
securely. Ensure the seals or sealing materials have not deteriorated to the point
where they no longer stop flammable gases from getting inside. Replacement parts
must match the manufacturer's specifications.
NOTE: Using silicon sealant can interfere with some types of leak detection equipment.
Components that are intrinsically safe do not need to be isolated before maintenance.
3) Repairing intrinsically safe components can be done while they are live in the
presence of a flammable atmosphere. However, before applying any permanent
inductive or capacitance loads to the circuit, ensure this will not exceed the permitted
voltage and current for the equipment in use. Also, ensure the test apparatus is rated
correctly. Do not work on non-intrinsically safe components in the presence of a
flammable atmosphere.

16
Only replace components with parts specified by the manufacturer. Non-specified parts
could release flammable components into the atmosphere.
4. Keep cabling away from sharp edges, vibrations and excessive pressure. Check for
damages and wear and tear to the cabling.
5. Never use sources of ignition (halide torches or other naked flames) to search for
refrigerant leaks.
6. It is acceptable to use the following leak detection methods for systems containing
flammable refrigerants:
- Electronic leak detectors: Be aware, the sensitivity of electronic detectors may need to
be recalibrated. Ensure the equipment is not a potential source of ignition. Equipment
must be calibrated in a refrigerant-free area and set at a percentage of the LFL of the
refrigerant, with a maximum of 25% gas.
- Leak detection fluids: These can be used, but detergents with chlorine should be
avoided to prevent corrosion of copper pipework.
If a leak is suspected, all naked flames must be removed and extinguished. If a
refrigerant leakage is found that requires brazing, it must be removed from the system
or isolated using shut-off valves in a remote part of the system. Oxygen-free nitrogen
(OFN) should then be purged through the system before and during the brazing
process.
7. When accessing the refrigerant circuit for repairs or any other purpose, it is crucial to
follow proper procedures with safety in mind. To ensure the safety of the personnel
involved, the following steps must be taken:
1) Remove refrigerant.
2) Purge the circuit with inert gas.
3) Evacuate the circuit.
4) Purge again with inert gas.
5) Open the circuit by cutting or brazing.
The refrigerant must be removed and collected in the correct cylinders. The system then
needs to be flushed with oxygen-free nitrogen (OGN) until no refrigerant remains. This
is done by filling the system with OFN, venting into the atmosphere and repeating until
no refrigerant is left. Do not use compressed air or oxygen. This flushing process must
be repeated several times and the charge of OFN must be vented into the atmosphere.
It is important to make sure the vacuum pump outlet is not near any ignition sources and
that there is enough ventilation available. Flushing is crucial before brazing the
pipework.
8. Charging procedures
When charging a refrigeration system, it is important to follow these additional
requirements:
● Use charging equipment that prevents contamination of different refrigerants. Keep
hoses or lines as short as possible, minimising the amount of refrigerant they contain.
● Keep cylinders upright.
● Before charging the system with refrigerant, ensure the refrigeration system is
properly grounded.
● Label the system after charging is complete (if it wasn't labelled already).
● Be careful not to overfill the refrigeration system. Before charging the system, it
should be pressure tested with OFN, ensuring it is safe and leak-free. After charging
is complete but before commissioning, the system should be leak tested again. A final
follow-up leak test should be conducted before leaving the site.
9.Decommissioning
Before performing this procedure, the technician must have a thorough understanding

17
of the equipment and its specifications. All refrigerants must be recovered safely. Before
starting the task, take samples of oil and refrigerant for analysis, in case further
examination is needed before reusing the reclaimed refrigerant. It is important to ensure
that electrical power is available before beginning the task.
● Become familiar with the equipment and its operation.
● Disconnect the system from the electrical supply.
● Before attempting the procedure, ensure that:
a) Mechanical handling equipment is available, if required, for handling refrigerant
cylinders.
b) All personal protective equipment is available and being used correctly.
c) The recovery process is supervised at all times by a competent person.
d) Recovery equipment and cylinders conform to the appropriate standards.
e) Using a pump, remove as much refrigerant as you can from the system.
f) If a vacuum is not possible, create a manifold that allows you to remove refrigerant
from different parts of the system.
g) Before starting the recovery process, ensure the cylinder is placed on the scales.
h) Following the manufacturer's instructions, start and operate the recovery
machine.
i) Do not overfill the cylinders (no more than 80 % of the cylinder's volume).
j) Do not exceed the maximum working pressure of the cylinder, even temporarily.
k) Once the cylinders are correctly filled and the process is complete, remove the
cylinders and equipment from the site. Ensure all isolation valves on the
equipment are closed.
l) Do not use recovered refrigerant in another refrigeration system, unless it has
been thoroughly cleaned and checked.
10. Labelling
Label all equipment stating that it has been decommissioned and emptied of refrigerant.
The label must be dated and signed.
11. Recovery
● Ensure refrigerant is removed from a system in a safe manner.
● When transferring refrigerant into cylinders, use appropriate refrigerant recovery
cylinders, which are specifically designated for that purpose.
● Ensure you have the correct number of cylinders to hold the total system charge.
● Cylinders must be labelled for the specific refrigerant being recovered. Cylinders must
be equipped with a pressure relief valve and working shut-off valves.
● Before recovery, empty cylinders should be evacuated and, if possible, cooled.
● Recovery equipment must be in good working condition, suitable for handling
flammable refrigerants. It must come with proper instructions.
● Calibrated weighing skills and hoses with leak-free disconnect couplings must be
available and in good condition.
● Before using the recovery machine, ensure it is in good working condition, properly
maintained and electrical components are sealed to prevent ignition in case of a
refrigerant release.
● If you have any doubts, consult the manufacturer.
● Return the recovered refrigerant to the refrigerant supplier in the appropriate cylinder.
A Waste Transfer Note should be arranged accordingly.
● Never mix refrigerants in recovery units or cylinders.

18
● To remove compressors or compressor oils, ensure they have been properly
evacuated to remove any remaining flammable refrigerant from the lubricant. This
should be done before returning the compressor to the supplier.
● When draining oil from a system, it must be done safely and following proper
procedures.
APPENDIX
Schematic diagram of the dehumidifier
For specific technical parameters of the model, refer to rating label on the product.
Correct Disposal of this product
Waste electrical products should not be disposed of with household waste.
Please recycle where facilities exist. Check with your local authority or retailer
for recycling advise.

19
Manual de instrucciones
IN230500466V01_ES_PT
821-031V90
IMPORTANTE, LEA Y GUARDE PARA FUTURAS REFERENCIAS
Deshumidificador
ES

20
CONTENIDO
INSTRUCCIONES DE SEGURIDAD..........................................................................21
PRECAUCIONES......................................................................................................23
PARTES DEL PRODUCTO........................................................................................27
PANEL DE CONTROL...............................................................................................27
FUNCIONAMIENTO..................................................................................................28
DRENAJE.................................................................................................................29
LIMPIEZA DEL FILTRO.............................................................................................30
MANTENIMIENTO....................................................................................................31
RESOLUCIÓN DE PROBLEMAS...............................................................................32
APÉNDICE ................................................................................................................36