Midea MAP14AS1TWT-C Duo Portable Air Conditioner User Manual

Midea MAP14AS1TWT-C Duo Portable Air Conditioner

Read This Manual

Inside you’ll find many helpful hints on how to use and maintain your air conditioner
properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your air conditioner. You’ll find many answers to common
problems in the troubleshooting tips – you should be able to fix most of them quickly before calling service. These instructions may not cover every possible condition of use, so common sense and attention to safety is required when installing, operating
and maintaining this product.

! CAUTION

• For support, please call the Service Center at 1-866-646-4332. Service Center Operation Hours: Monday through Friday 8 a.m. to 7 p.m. EST Saturday 9 a.m. to 4 p.m. EST
Language Spoken: English
• This appliance is not intended for use by people (including children) 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 air conditioner.
• The appliance shall be installed in accordance with national wiring regulations.
• Do not operate your air conditioner in a humid room such as a bathroom or laundry room.

SAFETY PRECAUTIONS

To prevent injury to the user or other people and property damage, the instructions
shown here must be followed. Incorrect operation due to ignoring of instructions may
cause harm or damage. The level of risk is shown by the following indications.

A WARNING
This symbol indicates a hazardous situation which, if not
avoided, could result in serious injury or death.

A CAUTION
This symbol indicates a hazardous situation, which, if not
avoided, could result in minor or moderate injury.

NOTICE
This symbol addresses practices not related to physical
injury.

A WARNING

• Be sure the air conditioner has been securely and correctly installed according to the installation instructions in this manual. Save this manual for possible future use in removing or installing this unit.
• Plug in power cord plug properly. Otherwise, it may cause electric shock or fire due to excess heat generation.
• Do not modify power cord length or share the outlet with other appliances as it may cause electric shock or fire due to overheating
• Always ensure effective grounding. Incorrect grounding may cause electric shock.
• Unplug the unit if you notice unusual sounds or smells or smoke coming from it. A damaged product may cause fire and electric shock.
• Ventilate room before operating the air conditioner if there is a gas leakage from another appliance.
• Do not operate or stop the unit by inserting or pulling out the power cord plug.
• Do not operate with wet hands or in very humid environments. It may cause electric shock.
• Do not allow water to come into contact with any electric parts. It may cause failure or electric shock.
• Do not use the socket if it is loose or damaged. It may cause fire and electric shock.
• Do not use or keep the power cord close to heating appliances. It may cause fire and electric shock.
• Do not use any devices or materials for installation that are not recommended in this manual.

A WARNING
• Do not disassemble or modify unit.
It may cause failure and electric shock.
• Do not damage or use an alternate power cord.
It may cause fire and electric shock.
If the power cord is damaged, it must be replaced by the manufacturer or an authorized service center or a similarly qualified person in order to avoid a hazard.
• Do not let the air conditioner blow straight at persons in case of possible health hazards.
• Do not open the unit during operation.
It may cause electric shock.
• Do not use the power cord near flammable gas or combustibles, such as gasoline, benzene, thinner, etc.
It may cause an explosion or fire.
• Do not let children hang on the air conditioner or bracket.
A serious injury may occur.
• Avoid fire hazard or electric shock. Do not use an extension cord or an adaptor plug. Do not remove any prongs from the power cord.
• Be sure the air conditioner 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 air conditioner 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, have a qualified electrician install the proper
receptacle. Ensure the receptacle is accessible after the unit installation.
• Be sure the electrical service is adequate for the model you have chosen. This information can be found on the serial plate, which is located on the side of the cabinet and behind the grille.

A CAUTION

• When the air filter is to be removed, do not touch the metal parts of the unit.
It may cause injury.
• When the unit needs cleaning, switch off, and turn off the circuit breaker.
Do not clean unit when power is on as it may cause fire, electric shock or injury.
• Do not place obstacles around air inlets or inside of air outlet.
It may cause failure or accident.
• Clean with a soft cloth only. Do not use strong detergents that contain wax or
thinners as it may damage the product.
• Use caution when unpacking and installing. Sharp edges could cause injury.
• Do not clean the air conditioner with water.
Water may enter the unit and degrade the insulation which could lead to
electric shock.

A CAUTION
• Do not put a pet or house plant where it will be exposed to direct air flow.
This could injure the pet or harm the plant.
• Hold the plug by the head of the power plug when taking it out.
Otherwise, it may cause electric shock and damage.
• Ensure that the installation is properly secured to prevent the product from potentially falling-
• Do not place heavy objects on the power cord and ensure that the cord is not compressed.
Otherwise, there is danger of fire or electric shock.
• If water is spilled on the unit, turn off the unit and switch off the circuit breaker.
Isolate supply by taking the power-plug out and contact customer service.
• Do not use near gas stove or other gas burning appliances, as air flow may affect
gas combustion.
• Do not use for any purpose other than room comfort.
Do not use this air conditioner to preserve precision devices, food, pets, plants,
and art objects. It may cause deterioration.
• Turn off the main power switch if the unit is not to be used for an extended time.
• Always insert the filters securely. Clean filter once every two weeks.
Operation without filters may cause failure.
• Do not drink water drained from the air conditioner.

WARNING:
– 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 a person competent in
the use of flammable refrigerants.
– DO NOT modify the length of the power cord or use an extension cord to power
the unit.
– DO NOT share a single outlet with other electrical appliances.
Improper power supply can cause fire or electrical shock.
– Please follow the instruction carefully to handle, install, clean and service the
appliance to avoid any damage or hazard.
Flammable
Refrigerant R32 is used within appliance.
– When maintaining or disposing the appliance, the refrigerant (R32) shall be
recovered properly and shall not be discharged to air directly.
– 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 authorizes their competence to handle refrigerants safely in
accordance with an industry recognized assessment specification. All training shall
follow the ANNEX HH requirements of UL 60335-2-40.
Examples for such working procedures are:
• breaking into the refrigerating circuit:
• opening of sealed components;
• opening of ventilated enclosures.
– No open fire or device like switch which may generate spark/arcing shall be
around appliance to avoid causing ignition of the flammable refrigerant used.
Please follow the instructions carefully when storing or maintaining the appliance to
prevent mechanical damage from occurring.
– 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) and ignition
sources or (for example: an operating electric heater) close to the appliance.
– Do not pierce or burn.
– Be aware that the refrigerants may not contain an odor.

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 staf 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 of. 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 refrigerating 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 refrigerating 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 sufciently 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 refrigerating equipment

Where electrical components are being changed, they shall be fit for the purpose
and to the correct specifications. 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 actual refrigerant charge 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; and refrigerating 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. Sealed electrical components shall be replaced.

• During repairs to sealed components, all electrical supplies shall be disconnected
from the equipment being worked upon prior to any removal of sealed covers,
etc. If it is absolutely necessary to have an electrical supply to equipment during
servicing, then a permanently operating form of leak detection shall be located
at the most critical point to warn of a potentially hazardous situation.
2) Particular attention shall be paid to the following to ensure that by working on
electrical components, the casing is not altered in such a way that the level of
protection is afected.
Check for 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 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 efectiveness of some types of leak
detection equipment. Intrinsically safe components do not have to be isolated prior
to working on them.

8. Intrinsically safe components must be replaced.

Do not apply any permanent inductive or capacitance loads to the circuit without
ensuring that this will not exceed the permissible voltage and current permitted for
the equipment in use. Intrinsically safe components are the only types that can be
worked on while live in the presence of a flammable atmosphere.
The test apparatus shall be at the correct rating. Replace components only with
parts specified by the manufacturer. Other parts may result in the ignition of
refrigerant in the atmosphere from a leak.

9. Cabling

Check that cabling will not be subject to wear, corrosion, excessive pressure,
vibration, sharp edges or any other adverse environmental efects. The check shall
also take into account the efects of aging or continual vibration from sources such as
compressors or fans.

10. Detection of flammable refrigerants

Under no circumstances shall potential sources of ignition be used in the searching
for or detection of refrigerant leaks. A halide torch (or any other detector using a
naked flame) shall not be used.
The following leak detection methods are deemed acceptable for systems
containing flammable refrigerants. Electronic leak detectors shall be used to detect
flammable refrigerants, but the sensitivity may not be adequate, or may need
re-calibration.

(Detection equipment shall be calibrated in a refrigerant-free area.)
Ensure that the detector is not a potential source of ignition and is suitable for the
refrigerant used. Leak detection equipment shall be set at a percentage of the LFL
of the refrigerant and shall be calibrated to the refrigerant employed and the
appropriate percentage of gas (25% maximum) is confirmed. Leak detection
fluids are suitable for use with most refrigerants but the use of detergents
containing chlorine shall be avoided as the chlorine may react with the refrigerant
and corrode the copper pipe-work.
If a leak is suspected, all naked flames shall be removed/extinguished. If a leakage
of refrigerant is found which requires brazing, all of the refrigerant shall be
recovered from the system, or isolated (by means of shut of valves) in a part of the
system remote from the leak. Removal of refrigerant shall be according to Removal
and evacuation.

11. Removal and evacuation

When breaking into the refrigerant circuit to make repairs-or for any other
purpose – conventional procedures shall be used. However, for flammable
refrigerants it is important that best practice be followed, since flammability is a
consideration. The following procedure shall be adhered to:
-Safely remove refrigerant following local and national regulations;
-Evacuate:
-Purge the circuit with inert gas (optional for A2L):|
-Evacuate (optional for A2L);
-continuously flush or purge with inert gas when using flame to open circuit; and
-open the circuit.
The refrigerant charge shall be recovered into the correct recovery cylinders if
venting is not allowed by local and national codes. For appliances containing
flammable refrigerants, the system shall be purged with oxygen-free n flammable
refrigerants. This process might Compressed air or oxygen shall not be used for
purging refrigerant systems.
For appliances containing flammable refrigerants, refrigerants purging shall be
achieved by breaking the vacuum in the system with oxygen-free nitrogen and
continuing to fill until the working pressure is achieved, then venting to atmosphere
and finally pulling down to a vacuum (optional for A2L). This process shall be
repeated until no refrigerant is within the system (optional for AL). When the final
oxygen-free nitrogen charge is used. the system shall be vented down to
atmospheric pressure to enable work to take place.
The outlet for the vacuum pump shall not be close to any potential ignition sources.
and ventilation shall be available.

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