Midea MPPT-12CRN7 User manual
MOBILE AIR CONDITIONER(Local Air Conditioner)
Owner’s Manual &
Installation Manual
IMPORTANT NOTE:
Read this manual carefully before installing
or operating your new air conditioning
unit. Make sure to save this manual for
future reference.
Table of Contents
Safety Precautions
Safety Precautions . ..................................................................................................................
Installation Instructions
Preparation................................................................................................................................
Design Notice.............................................................................................................................
Ambient Temperature Range For Unit Operating........................................................................
Choosing The Right Location......................................................................................................
Recommend Installation.............................................................................................................
Energy Rating Information ........................................................................................................
Tools Needed.............................................................................................................................
Accessories.................................................................................................................................
Window Installation Kit..............................................................................................................
Installation.................................................................................................................................
Operating Instructions
Control Panel Features...............................................................................................................
Operation Instructions................................................................................................................
Other features............................................................................................................................
01
09
09
10
10
10
10
11
11
11
12
14
15
16
Maintenance
Safety Precautions.....................................................................................................................
Air Filter Cleaning ......................................................................................................................
Unit Cleaning ...........................................................................................................................
Store the unit when not in use .................................................................................................
18
18
18
18
Troubleshooting Tips
Troubleshooting Tips ................................................................................................................
19
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.
Safety
Precautions
WARNING
This symbol indicates the possibility of
personnel injury or loss of life.
This symbol indicates the possibility of
property damage or serious consequences.
CAUTION
WARNING
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Installation must be performed according to the installation instructions. Improper installation
can cause water leakage, electrical shock, or fire.
Use only the included accessories and parts, and specified tools for the installation. Using non-
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standard parts can cause water leakage, electrical shock, fire, and injury or property damage.
Make sure that the outlet you are using is grounded and has the appropriate voltage.
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The power cord is equipped with a three-prong grounding plug to protect against shock.
Voltage information can be found on the nameplate of the unit.
Your unit must be used in a properly grounded wall receptacle. If the wall receptacle you
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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.
Install the unit on a flat, sturdy surface. Failure to do so could result in damage or excessive
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noise and vibration.
The unit must be kept free from obstruction to ensure proper function and to mitigate safety
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hazards.
Do not modify the length of the power cord or use an extension cord to power the unit.
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Do not share a single outlet with other electrical appliances. Improper power supply can
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cause fire or electrical shock.
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Do not install your air conditioner in a wet room such as a bathroom or laundry room. Too
much exposure to water can cause electrical components to short circuit.
Do not install the unit in a location that may be exposed to combustible gas, as this could
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cause fire.
The unit has wheels to facilitate moving. Make sure not to use the wheels on thick carpet or to
roll over objects, as these could cause tipping.
Do not operate a unit that it has been dropped or damaged.
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The appliance with electric heater shall have at least 1 meter space to the combustible
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materials.
Do not touch the unit with wet or damp hands or when barefoot.
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If the air conditioner is knocked over during use, turn off the unit and unplug it from the main
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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.
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Safety
Precautions
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In a thunderstorm, the power must be cut off to avoid damage to the machine due to lightning.
Your air conditioner should be used in such a way that it is protected from moisture.
e.g. condensation, splashed water, etc. Do not place or store your air conditioner where it can
fall or be pulled into water or any other liquid. Unplug immediately if it occurs.
All wiring must be performed strictly in accordance with the wiring diagram located inside of
the unit.
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, etc.
When the water drainage function is not in use, keep the upper and the lower drain plug firmly
to the unit to get rid of choking. When the drain plug is not in use, keep it carefully to prevent
children from choking.
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. (be 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.
Children must be supervised around the unit at all times.(be 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 remove any fixed covers. Never use this appliance if it is not working properly, or if it has
been dropped or damaged.
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, plug, power fuse or circuit breaker. 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.
Contact the authorised installer for installation of this unit.
Do not cover or obstruct the inlet or outlet grilles.
Do not use this product for functions other than those described in this instruction manual.
Before cleaning, turn off the power and unplug the unit.
Disconnect the power if strange sounds, smell, or smoke comes from it.
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Do not press the buttons on the control panel with anything other than your fingers.
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Do not remove any fixed covers. Never use this appliance if it is not working properly, or if it has
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been dropped or damaged.
Do not operate or stop the unit by inserting or pulling out the power cord plug.
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Page 2
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Do not use hazardous chemicals to clean or come into contact with the unit. Do not use the unit
in the presence of inflammable substances or vapour such as alcohol, insecticides, petrol,etc.
Always transport your air conditioner in a vertical position and stand on a stable, level surface
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during use.
Always contact a qualified person to carry out repairs. If the damaged power supply cord must
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be replaced with a new power supply cord obtained from the product manufacturer and not
repaired.
Hold the plug by the head of the power plug when taking it out.
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Turn off the product when not in use.
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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
information on the type, the amount and the CO2 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.
Safety
Precautions
Sociable Remark
When using this appliance in the European countries, the following information must be followed:
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 hazar do us
substances leak into the ground-water and find their way into the food chain.
WARNING for Using R32/R290 Refrigerant
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. When there are differences between the lable and the manual on
the Min. room area description, the description on label shall prevail.
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Safety
Precautions
amount of refrigerant (kg)
≥
0.0836
<
0.0836 and 0.1045
<
0.1045 and 0.1254
<
0.1254 and 0.1463
<
0.1463 and 0.1672
<
0.1672 and 0.1881
≥
≥
≥
≥
≥
For R290(Not applicable for North America)
Min. room area(m²)
4
5
6
7
8
9
amount of refrigerant (kg)
<
0.1881 and 0.2090
<
0.2090 and 0.2299
<
0.2299 and 0.2508
<
0.2508 and 0.2717
<
0.2717 and 0.2926
<
≥
≥
≥
≥
≥
≥
Min. room area(m²)
10
11
12
13
14
15 0.2926 and 0.3040
For R32 frigerant models:
Appliance shall be installed, operated and stored in a room with a floor area larger than 4 m .
Appliance shall not be installed in an unvertilated space, if that space is smaller 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.
Please follow the instruction carefully to handle, install, clear, service the air conditioner to avoid any
damage or hazard. Flammable Refrigerant is used within air conditioner. When maintaining or disposing
the air conditioner, the refrigerant (R32 or R290) shall be recovered properly, shall not discharge to air
directly.
No any open fire or device like switch which may generate spark/arcing shall be around air conditioner
to avoid causing ignition of the flammable refrigerant used.
Please follow the instruction carefully to store or maintain the air conditioner to prevent mechanical
damage from occurring.
Flammable refrigerant is used in air conditioner. Please follow the instruction carefully to avoid any
hazard.For special information on the type of gas and the amount,please to the relevant label on
the unit itself.
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).
2
2
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Safety
Precautions
Caution: Risk of fire/
flammable materials
(Required for R32/R290 units only)
Explanation of symbols displayed on the unit(For the unit adopts R32/R290 Refrigerant only):
WARNING
CAUTION
CAUTION
CAUTION
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.
This symbol shows that the operation manual should be read carefully.
This symbol shows that a service personnel should be handling this equipment
with reference to the installation manual.
This symbol shows that information is available such as the operating manual or
installation manual.
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
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Safety
Precautions
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 CO2 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.
8)Checks to the refrigeration equipment
Where electrical components are being changed, they shall be fit for the purpose and to the correct
specification. At all times the manufacturer's maintenance and service guidelines shall be followed. If in
doubt consult the manufacturer's technical department for assistance. 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 refrigerant; Marking to the equipment continues to be visible and legible. Markings and signs that
are illegible shall be corrected;
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 so corroded.
9)Checks to electrical devices
Repair and maintenance to electrical components shall include initial safety checks and component
inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be
connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately
but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be
reported to the owner of the equipment so all parties are advised.
Initial safety checks shall include:
That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking;
That there no live electrical components and wiring are exposed while charging, recovering or purging
the system; That there is continuity of earth bonding.
7.Repairs to sealed components
1)During repairs to sealed components, all electrical supplies shall be disconnected from the equipment
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