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SAFETY PRECAUTIONS

SAFETY PRECAUTIONS

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

(the fuse

or circuit breaker needed is determined by the maximum current of the unit. The maximum current
is indicated on the nameplate located on unit

)

 have a qualified electrician install the proper 

receptacle. 
Ensure the receptacle is accessible after the unit installation.

Do not use extension cords or an adapter plugs with this unit. 

However,  if it is necessary 

to use an extension cord, use an approved  Dehumidifier  extension cord only (available at 
most local hardware stores). 
To avoid the possibility of personal injury, always disconnect the power supply to the unit, 
before installing and/or servicing.
All wiring must be performed strictly in accordance with the wiring diagram located on the
middle baffle of the unit (behind of the water bucket).

Electrical Information

   Contact the authorised installer for installation of this unit.
   If the air conditioner 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.
   To reduce the risk of fire or electric shock, do not use this fan with any solid-state speed 
   control device.
   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 open the unit during operation.
   When the air filter is to be removed, do not touch the metal parts of the unit.
   Hold the plug by the head of the power plug when taking it out.
   

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.

C

Appliance should be installed, operated and stored in a room with a floor area 

2

larger than 4 m .

ompliance 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.

WARNINGS (for using R290/R32 refrigerant only)

!

Caution: Risk of fire/
flammable materials

(Required for R32/R290 units only)

IMPORTANT NOTE:Read this manual 
carefully before installing or operating 
your new air conditioning unit. Make sure 
to save this manual for future reference.

Explanation of symbols displayed on the unit(For the unit adopts R32/R290 Refrigerant only):

WARNING

This symbol shows that this appliance used a 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.

CAUTION

This symbol shows that a service personnel should be 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.

Take note the fuse specifications

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.

Note About Fluorinated Gasses

-

type, the amount and the CO

2

 equivalent in tonnes of the 

 fluorinated greenhouse gas(on some models), please refer to the relevant label on the 
 unit itself. 
-Installation, service, maintenance and repair of this unit must be performed by a 
 certified technician.
-Product uninstallation and recycling must be performed by a certified technician.

Fluorinated greenhouse gases are contained in hermetically sealed equipment. For 

 specific information on the 

NOTE: All the pictures in the manual are for explanation purposes only. The actual shape 
of the unit you purchased may be slightly different, but the operations and functions are 
the same.
             

Summary of Contents for MDDF-16DEN7-QA3

Page 1: ... product improvement Consult with the sales agency or manufacturer for details Any updates to the manual will be uploaded to the service website please check for the latest version GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD Lingang Road Beijiao Shunde Foshan Guangdong People s Republic of China 528311 MODEL MDDF 16DEN7 QA3 REFRIGERANT R290 0 075kg MODEL MDDF 20DEN7 QA3 REFRIGERANT R290 0 075kg ...

Page 2: ...sed of at least free of charge to the user B When buying a new product the retailer will take back the old product at least free of charge C The manufacture will take back the old appliance for disposal at least free of charge to the user D 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 ...

Page 3: ...or other foreign objects into grills or openings Take special care to warn children of these dangers Do not use in areas where chemicals are handled This will cause the unit deterioration due to chemicals and solvents dissolved in the air Care should be taken when using the unit in a room with the following persons Infants children elderly people and people not sensitive to humidity You may be inj...

Page 4: ...burn Be aware that the refrigerants may not contain an odour C Appliance should be installed operated and stored in a room with a floor area 2 larger than 4 m ompliance 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 v...

Page 5: ...fected This shall include damage to cables excessive number of connections terminals not made to original specification damage to seals incorrect fitting of glands etc Ensure that apparatus is mounted securely Ensure that seals or sealing materials have not degraded such that they no longer serve the purpose of 1 Transport of equipment containing flammable refrigerants See transport regulations 2 ...

Page 6: ...aximum working pressure of the cylinder even temporarily j When the cylinders have been filled correctly and the process completed make sure that the cylinders and preventing the ingress of flammable atmospheres Replacement parts shall be in accordance with the manufacturer s specifications NOTE The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment Intr...

Page 7: ...lves on the equipment are closed off k Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked 15 Labelling Equipment shall be labelled stating that it has been de commissioned and emptied of refrigerant The label shall be dated and signed Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant 1...

Page 8: ...m humidity level in a range of 30 RH Relative Humidity to 90 RH Relative Humidity Error Codes and Protection Codes AS Humidity sensor module error Unplug the unit and plug it back in If error repeats call for service Auto Shut Off The dehumidifier shuts off when the bucket is full or when the bucket is removed or not replaced in the proper position For some models the fan motor will continue opera...

Page 9: ...ustrial applications Place the dehumidifier on a smooth level floor strong enough to support the unit with a full bucket of water Allow at least 20cm of air space on all sides of the unit for good air circulation Place the unit in an area where the temperature will not O O fall below 5 C 41 F The coils can become covered with O O frost at temperatures below 5 C 41 F which may reduce performance Pl...

Page 10: ...sily so use a vacuum attachment or brush to clean 2 Clean the bucket Every few weeks clean the bucket to prevent growth of mold mildew and bacteria Partially fill the bucket with clean water and add a little mild detergent Swish it around in the bucket empty and rinse NOTE Do not use a dishwasher to clean the bucket After clean the bucket must be in place and securely seated for the dehumidifier t...

Page 11: ...or surface is not level Frost appears on the coils This is normal The dehumidifier has Auto defrost feature Water on floor Hose to connector or hose connection may be loose Intend to use the bucket to collect water but the back drain plug is removed ES AS or P2 appear in the display These are error codes and protection codes See the CONTROL PADS ON THE DEHUMIDIFIER section 19 19 NOTE The cabinet a...

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