Midea MAW12HV1CWT User manual

Inverter Window
Heat Pump
MAW12HV1CWT
MAW08HV1CWT
midea.com
USER MANUAL
en
Warning notices: Before using
this product, please read this
manual carefully and keep it for
future reference. For additional
support, please call customer
service at 1-866-646-4332.
The design and specifications are
subject to change without prior
notice for product improvement.
Consult with your dealer or
the manufacturer for details.
Capacity: 8000 ~ 12000BTU/h

Page 2 
Owner’s Manual
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.
• For support, please call the Service Center at 1-866-646-4332.
• 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 appliance.
• 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.
CAUTION
SAFETY PRECAUTIONS .................................................................................... 3
INSTALLATION INSTRUCTIONS ..................................................................... 8
OPERATING INSTRUCTIONS .......................................................................... 15
CARE AND CLEANING .................................................................................... 20
TROUBLESHOOTING TIPS ............................................................................... 21
REMOTE CONTROL AND APP INSTRUCTIONS ......................................23

Page 3 
SAFETY PRECAUTIONS
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.
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 fromit.
A damaged product may cause fire and electric shock.
• Ventilate roombefore 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.
WARNING This symbol indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
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.

Page 4 
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 direct airflow straight into persons to avoid possible health hazard.
• 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 fromthe 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.
• Do not drink the drain water. It may contain mold and bacteria that can lead to
death if ingested.
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.
Safety
Precautions

Page 5 
Safety
Precautions
CAUTION
• Do not clean the air conditioner with water.
Water may enter the unit and degrade the insulation which could lead to
electric shock.
• Do not put a pet or house plant where it will be exposed to direct air flow.
This could injure the pet or harmthe 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 a qualified service
technician.
• 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 roomcomfort.
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.

Page 6 
Safety
Precautions
NOTICE
• Do not use this device to turn the unit on or off.
• Always make sure the RESET button is pushed in for correct operation.
• The power supply cord must be replaced if it fails to reset when either the TEST
button is pushed, or it can not be reset. Please contact Customer Service.
NOTICE
The power supply cord with this
air conditioner contains a current
detection device designed to reduce
the risk of fire.
In the event that the power supply
cord is damaged, it can not be
repaired. It must be replaced with a
cord fromthe manufacturer.
Grounding type wall receptacle
Do not, under any
circumstances, cut,
remove or bypass
the grounding prong.
Power supply cord with 3-prong grounding
plug and current detection device.
The power supply cord contains a current
measuring device that detects damage to
the power cord. Test your power supply
cord as follows:
1. Plug in the air conditioner.
2. The power supply cord will have TWO
buttons on the plug head. Press the
TEST button. You will notice a click as
the RESET button pops out.
3. Press the RESET Button. You will
notice a click as the button engages.
4. The power supply cord is now
supplying electricity to the unit. (On
some products this is also indicated
by a light on the plug head.)
RESET
TEST
Plug in &
press RESET
Operation of Current Device

Page 7 
Safety
Precautions
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.
EXPLANATION OF SYMBOLS DISPLAYED ON THE UNIT
• Do not try to accelerate the defrosting process or methods of cleaning that are
not recommended by the manufacturer.
• The appliance shall be stored in a roomwithout a continuously operating ignition
source (for example, open flames or an operating gas appliance) or an ignition
source (for example, an operating electric heater) close to the appliance. The
appliance shall also be stored in a roomwithout ignition sources.
• Do not pierce or burn.
• Be aware that the refrigerants may not contain an odor.
• Keep ventilation openings clear of obstruction.
• Unit is only to be serviced by a Midea authorized servicer, please call Customer
Service at 1-866-646-4332 for support.
• Flammable refrigerant R32 is used within air conditioner. Please follow the
instructions carefully to handle, install, clean, and service the air conditioner
to avoid damage or hazard. Do not dispose of air conditioner in regular trash.
Contact qualified agency for proper disposal.
• No open fire or devices that generate spark/arcing shall be around the air
conditioner to avoid causing ignition of the flammable refrigerant used. Please
follow the instructions carefully to store or maintain the air conditioner to
prevent mechanical damage fromoccurring.
WARNING

Page 8 
INSTALLATION INSTRUCTIONS
Installation
Instructions
WARNING - Before You Begin
Read these instructions completely
and carefully.
• IMPORTANT - Save these instructions.
• IMPORTANT - Observe all governing
codes and ordinances.
We recommend that two people
install this product.
Proper installation is the responsibility
of the installer.
Product failure due to improper
installation is not covered under the
Limited Warranty.
You MUST use all supplied parts and
use proper installation procedures as
described in these instructions when
installing this air conditioner.
Do not, under any circumstances, cut
or remove the third (ground) prong
fromthe power cord.
Do not change the plug on the power
cord of the air conditioner.
Aluminumhouse wiring may present
special problems - consult a qualified
electrician.
When handling the air conditioner, be
careful to avoid cuts fromsharp metal
edges and aluminumfins on front and
rear coils. Please wear cut-resistant
gloves.
Bracket should only be used for
its intended purpose. If not, the
warranty will be voided.
Tools You Will Need
NOTICE
• SAVE CARTON and these
INSTALLATION INSTRUCTIONS for
future reference. The carton is the best
to store unit during winter, or when not
in use.
• DO NOT USE ANY SCREWS OTHER
THAN THOSE SPECIFIED HERE.
• FOR SAFETY REASONS, THE TOP RAIL
MUST BE SECURELY FASTENED WITH
ALL FOUR (4) SCREWS.
Installation Hardware
Some assembly is required. Please read these
instructions carefully.
Phillips
Screwdriver
Drill
(If pilot holes are needed)
4
1
3/8” Screws
Top Rail
2
1 Window sash seal foam
Weather stripping
(10”×1-1/2”×1/6”)
1Sash lock
2
Lock frame
(For Vinyl-Clad windows)
2
Lock frame
(For Wooden windows)
7
1/2” Screws

Page 9 
Installation
Instructions
Fig. 1 Fig. 2
LEFT + RIGHT FILLER PANEL ASSEMBLY
Installation
1. Install Side Filler Panels
Before installing unit, the top rail must be assembled on the unit.
A: Remove the air conditioner from the carton and place on a flat surface.
B: Remove top rail from the rear of the packaging material as shown in Fig. A.
C: Align the hole in the top rail with those in the top of the unit as shown in Fig. B.
D: Secure the top rail to the unit with the 3/8” Screws as shown in Fig. C.
Packaging
Fig. A
Top Rail
Fig. C
Fig. B
NOTICE
Top Rail and Side Panels at each side are offset to provide the proper pitch to
the rear of (5/16”). This is necessary for proper condensed water utilization and
drainage. If you are not using the Side Panels for any reason, this pitch to the rear
must be maintained!
Place unit on floor, a bench or a table. There is a left and right side filler panels - be sure
to use the proper panel for each side. When installed, the flange for securing the panel
in place to the window sill will be facing into the room.
A. Hold the side panel in one hand
and gently pull back the center
to free the open end. See Fig. 1.
B. Slide the free and “T” section
of the panel directly into the
cabinet as shown in Fig. 2.
Slide the panel down. Be sure to
leave enough space to slip the
top and bottom of the frame
into the rails on the cabinet.
“ ” section
T
Fig
.
2

Page 10 
Installation
Instructions
C. Once the panel has been installed on
the side of the cabinet, make sure it sits
securely inside the frame channel by
making slight adjustments. Slide the top
and bottom ends of the frame into the top
and bottom rails of the cabinet. Fig. 3.
D. Slide the panel all the way in and repeat
on the other side.
Top Rail
Bottom Rail
F
ig. 3
Fig. 2
Your air conditioner is designed to install in standard double hung windows with
opening widths of 23.6 to 38.8 inches (600 mm to 985mm) (Fig. 4A, Fig. 4B).
Lower sash must open sufficiently to allow a clear vertical opening of 13.8 inches
(350 mm).
Side louvers and the rear of the air conditioner must have clear air space to allow
enough airflow through the condenser, for heat removal. The rear of the unit must be
outdoors, not inside a building or garage. There should be at least 11.8 inches (300 mm)
clearance around the unit. See Fig. 4C & Fig. 4D.
Fig. 4A
13.8" min
350 mm
Wooden Windows
Fig. 4B
13.8" min
350 mm
Vinyl-Clad Windows
INNER
WINDOW SILL
INNER
WINDOW SILL
INTERIOR
WALL
23.6" to 38.8"
23.6" to 38.8"
600 mm to 985mm 600 mm to 985mm
Fig. 4A Fig. 4B
Indoor side
Outdoor side
11.8" min
(300 mm)
11.8" min
(300 mm)
11.8" min
(300 mm)
11.8" min
(300 mm)
11.8" min
(300 mm)
11.8" min
(300 mm)
11.8" min (300 mm) 11.8" min (300 mm)
11.8" min (300 mm)
Fig. 4D
Fig. 4C
11.8" min (300 mm)
Outdoor side Indoor side
Fig. 4C Fig. 4D