Midea MDDM-20DEN7 User manual
DEHUMIDIFIER
Owner’s Manual &
Installation Manual
IMPORTANT NOTE:
Read this manual carefully before installing
or operating your new machine.
Make sure to save this manual for future reference.
Table of Contents
Safety Precautions
Safety Precautions ..............................................................................................................................................................01
Preparation
Identification of parts........................................................................................................................................................09
Installation instructions......................................................................................................................................................09
Strorage instructions..........................................................................................................................................................09
Caster installation and disassembly instruction...................................................................................................................09
Design Notice........................................................................................................................................................................10
Positioning the unit............................................................................................................................................................10
When using the unit...........................................................................................................................................................10
Operating Instructions
Control Panel Features......................................................................................................................................................11
Other features...................................................................................................................................................................... 13
Removing the collected water........................................................................................................................................15
Care and Maintenance
Clean the grille and case..................................................................................................................................................17
Clean the bucket ................................................................................................................................................................17
Clean the air filter ...............................................................................................................................................................17
When not using the unit for long time periods ......................................................................................................18
Troubleshooting Tips
Troubleshooting Tips ........................................................................................................................................................18
Safety
Safety Precautions
Read Safety Precautions Before Operation and Installation
To prevent death or injury to the user or other people and property damage, the
following instructions must be followed. Incorrect operation due to ignoring of
instructions may cause death, harm or damage.
WARNING CAUTION
Safety
Precautions
This symbol indicates the possibility of
personnel injury or loss of life.
This symbol indicates the possibility of
property damage or serious consequences.
WARNING
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Do not exceed the rating of the power outlet or connection device.
Do not operate or stop the unit by switching on or off the power.
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Do not damage or use an unspecified power cord.
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Do not modify power cord length or share the outlet with other appliances.
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Do not insert or pull out plug with wet hands.
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Do not install the appliance in a location that may be exposed to combustible gas.
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Do not place the unit near a heat source.
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Disconnect the power if strange sounds, smell, or smoke comes from it.
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You should never try to take apart or repair the unit by yourself.
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Before cleaning, turn off the power and unplug the unit.
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Do not use the machine near flammable gas or combustibles, such as gasoline, benzene,
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thinner, etc.
Do not drink or use the water drained from the unit.
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Do not take the water bucket out during operation.
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Do not use the unit in small spaces.
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Do not put in places where water may splash onto the unit.
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Place the unit on a level, sturdy section of the floor.
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Do not cover the intake or exhaust openings with cloths or towels.
Care should be taken when using the unit in a room with the following persons: infants,
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children, elderly people,and people not senstive to humidity.
Do not use in areas where chemicals are handled.
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Never insert your finger or other foreign objects into grills or openings. Take special care to
warn children of these dangers.
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Do not place heavy object on the power cord and take care so that the cord is not compressed.
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Do not climb up on or sit on the unit.
Always insert the filters securely. Clean filter once every two weeks.
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If water enters the unit, turn the unit off and disconnect the power , contact a qualified service
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technician.
Do not place flower vases or other water container on top of the unit.
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Do not use extension cords.
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All wiring must be performed strictly in accordance with the wiring diagram located inside of
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the unit.
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Safety
Precautions
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CAUTION
This appliance can be used by children aged from 8 years and above and person with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand
the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance
shall not be made by children without supervision. (Applicable for the European Countries)
This appliance is not intended for use by persons (including childern) with reduced physical,
sensory or mental capabilities or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety. Children should be supervised to ensure that they do not play with the appliance.
(Applicable for other countries except the European Countries )
If the supply cord is damaged, it must be replaced by the manufacturer,its service agent or
similarly qualified persons in order to avoid a hazard.
Prior to cleaning or other maintenance, the appliance must be disconnected from the supply
mains.
Do not install the appliance in a location that may be exposed to combustible gas. If
combustible gas accumulates around the unit, it may cause fire.
If the appliance is knocked over during use, turn off the unit and unplug it from the main power
supply immediately. Visually inspect the unit to ensure there is no damage. If you suspect the
unit has been damaged, contact a technician or customer service for assistance.
In a thunderstorm, the power must be cut off to avoid damage to the machine due to lightning.
Do not run cord under carpeting. Do not cover cord with throw rugs, runners, or similar
coverings. Do not route cord under furniture or appliances. Arrange cord away from traffic area
and where it will not be tripped over.
Do not operate unit with a damaged cord or plug. Discard unit or return to an authorized
service facility for examination and/or repair.
To reduce the risk of fire or electric shock, do not use this fan with any solid-state speed control
device.
The appliance shall be installed in accordance with national wiring regulations.
Contact the authorised service technician for repair or maintenance of this unit.
Turn off the product when not in use.
The manufactures nameplate is located on the rear panel of the unit and contains electrical and other
technical data specific to this unit.
Be sure the unit is properly grounded. To minimize shock and fire hazards, proper grounding is
important. The power cord is equipped with a three-prong grounding plug for protection against
shock hazards.
Your unit must be used in a properly grounded wall receptacle. If the wall receptacle you intend to
use is not adequately grounded or protected by a time delay fuse or circuit breaker(please refer to the
nameplate for the electrical data), have a qualified electrician install the proper receptacle.
Do not operate your appliance in a wet room such as a bathroom or laundry room.
The unit s circuit board(PCB) is designed with a fuse to provide overcurrent protection.
The
specifications of the fuse are printed on the circuit board, such as: T 3.15A/250V (or 350V), etc.
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Note about Fluorinated Gasses(Not applicable to the unit using R290 Refrigerant)
1.
Fluorinated greenhouse gases are contained in hermetically sealed equipment. For specific
2
information on the type, the amount and the CO
equivalent in tonnes of the fluorinated
greenhouse gas(on some models), please refer to the relevant label on the unit itself.
2. Installation, service, maintenance and repair of this unit must be performed by a certified
technician.
3.
Product uninstallation and recycling must be performed by a certified technician.
Sociable Remark
When using this dehumidifier in the European countries, the following information
must be followed:
Safety
Precautions
DISPOSAL: Do not dispose this product as unsorted municipal waste. Collection of such waste
separately for special treatment is necessary.
It is prohibited to dispose of this appliance in domestic household waste.
For disposal, there are several possibilities:
· The municipality has established collection systems, where electronic waste can be disposed
of at least free of charge to the user.
· When buying a new product, the retailer will take back the old product at least free of charge.
· The manufacture will take back the old appliance for disposal at least free of charge to the user.
· As old products contain valuable resources, they can be sold to scrap metal dealers. Wild
disposal of waste in forests and landscapes endangers your health when hazardous
substances leak into the ground-water and find their way into the food chain.
UV-C lamp(Applicable to the unit contains an UV-C lamp only)
This appliance contains a UV-C lamp. Read the maintenance instructions before opening the appliance.
1. Do not operate UV-C lamps outside of the appliance.
2. Appliances that are obviously damaged must not be operated.
3. Unintended use of the appliance or damage to the housing may result in the escape of dangerous UV-C
radiation. UV-C radiation may, even in small doses, cause harm to the eyes and skin.
4.
Before opening doors and access panels bearing the ULTRAVIOLET RADIATION hazard symbol
for the conducting USER MAINTENANCE, it is recommended to disconnect the power.
5. The UV-C lamp can not be cleaned, repaired and replaced.
6. UV-C BARRIERS bearing the ULTRAVIOLET RADIATION hazard symbol should not be removed.
WARNING
This appliance contains an UV emitter. Do not stare at the light source.
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Safety
Precautions
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 continuously operating ignition sources (for example:
open flames, an operating gas appliance or an operating electric heater).
Do not pierce or burn.
Be aware that the refrigerants may not contain an odour.
Appliance should be installed, operated and stored in a room with a floor area according to the amount
of refrigerant to be charged. For specific information on the type of gas and the amount, please refer
to the relevant label on the unit itself.
Appliance should be installed, operated and stored in a room with a floor area larger than 4 m .
Compliance with national gas regulations shall be observed.
Keep ventilation openings clear of obstruction.
The appliance shall be stored so as to prevent mechanical damage from occurring.
A warning that the appliance shall be stored in a well-ventilated area where the room size corresponds
to the room area as specified for operation.
Any person who is involved with working on or breaking into a refrigerant circuit should hold a current
valid certificate from an industry-accredited assessment authority, which authorises their competence
to handle refrigerants safely in accordance 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.
The appliance shall be stored in a room without continuously operating open flames (for example an
operating gas appliance) and ignition sources (for example an operating electric heater).
WARNING for Using R32/R290 Refrigerant
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Caution: Risk of fire/
flammable materials
Explanation of symbols displayed on the unit(For the
unit adopts R32/R290 Refrigerant only):
This symbol shows that this appliance used a
WARNING
flammable refrigerant. If the refrigerant is leaked and
exposed to an external ignition source, there is a risk
of fire.
CAUTION
This symbol shows that the operation manual
should be read carefully.
This symbol shows that a service personnel should be
CAUTION
handling this equipment with reference to the
installation manual.
CAUTION
This symbol shows that information is available such
as the operating manual or installation manual.
Safety
Precautions
1.Transport of equipment containing flammable refrigerants
See transport regulations
2.Marking of equipment using signs
See local regulations
3.Disposal of equipment using flammable refrigerants
See national regulations.
4.Storage of equipment/appliances
The storage of equipment should be in accordance with the manufacturer's instructions.
5.Storage of packed (unsold) equipment
Storage package protection should be constructed such that mechanical damage to the equipment
inside the package will not cause a leak of the refrigerant charge. The maximum number of pieces of
equipment permitted to be stored together will be determined by local regulations.
6.Information on servicing
1)Checks to the area
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.
2)Work procedure
Work shall be undertaken under a controlled procedure so as to minimise the risk of a flammable gas or
vapour being present while the work is being performed.
3)General work area
All maintenance staff and others working in the local 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.
4)Checking for presence of refrigerant
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. non-sparking, adequately
sealed or intrinsically safe.
5)Presence of fire extinguisher
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. Have a dry powder or CO
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fire extinguisher
adjacent to the charging area.
6)No ignition sources
No person carrying out work in relation to a refrigeration system which involves exposing any pipe
work 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, repairing, removing and
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 shall be displayed.
7)Ventilated area
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.
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