Midea QSBPQ4U-020AEN User manual

FLOOR-STANDING TYPE AIR CONDITIONER
Owner’s 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.
Floor-Standing Type

Indoor Unit Parts and Major Functions .......... 05
Manual Operations....................................................07
Table of Contents
Owner’s Manual
SAFETY
FIRST
Safety Precautions ....................................................04
1
2
3

Page 3 
Care and Maintenance............................. 08
a. Unit Maintenance....................................... 08
b. How to Clean the Air Filter.......................08
c. Repairing Refrigerant Leaks ......................09
d. Preparation for Periods of Non-use........ 09
Troubleshooting .................................10
a. Common Problems ...........................10
b. Troubleshooting Tips.........................11
European Disposal Guidelines.............................................................. 13
4
5
6

Page 4 
Thank you for purchasing this air conditioner. This manual will provide you with information on how
to operate, maintain, and troubleshoot your air conditioner. Following the instructions will ensure the
proper function and extended lifespan of your unit.
Please pay attention to the following signs:
Safety Precautions 1
WARNING
• Ask an authorized dealer to install this air
conditioner. Inappropriate installation may
cause water leakage, electric shock, or fire.
• The warranty will be voided if the unit is not
installed by professionals.
• If abnormal situation arises (like burning
smell), turn off the power supply and call
your dealer for instructions to avoid electric
shock, fire or injury.
• DO NOT let the indoor unit or the remote
control get wet. It may cause electric shock
or fire.
• DO NOT insert fingers, rods or other
objects into the air inlet or outlet. This may
cause injury, since the fan may be rotating
at high speeds.
• DO NOT use a flammable spray such as
hair spray, lacquer or paint near the unit.
This may cause fire or combustion.
CAUTION
General
Introduction
• DO NOT touch the air outlet while the swing
flap is in motion. Fingers might get caught
or the unit may break down.
• DO NOT inspect the unit by yourself. Ask an
authorized dealer to perform the inspection.
• To prevent product deterioration, do not use
the air conditioner for preservation purposes
(storage of food, plants, animals, works of
art, etc.).
Failure to observe a warning may result in death. The appliance must be
installed in accordance with national regulations.
.
Failure to observe a caution may result in injury or equipment damage.
WARNING
CAUTION
• DO NOT place items that might be affected
by moisture damage under the indoor unit.
Condensation can occur at a relative
humidity of 80%.
• DO NOT
expose heat-producing appliances
to cold air or place them under the indoor
unit. This may cause incomplete combustion
or deformation of the unit due to the heat.
• After long periods of usage, check the
indoor unit to see if anything is damaged. If
the indoor unit is damaged, it may fall and
cause injury.
• If the air conditioner is used together with
other heating devices, thoroughly ventilate
the room to avoid oxygen deficiency.
• DO NOT climb onto or place objects on top
of the outdoor unit.
• DO NOT operate the air conditioner when
using fumigant insecticides. The chemicals
may become layered with the unit and
endanger those who are hypersensitive to
chemicals.
• DO NOT let children play with the air
•
The air conditioner can be used by children aged
8 years and older and people with reduced
physical, sensory or mental capabilities, or lack
of experience and knowledge, if they have been
given instruction on how to properly and safely
operate the system.
• DO NOT operate the air conditioner in a wet
room (e.g. bathroom or laundry room). This
can cause electrical shock and cause the
product to deteriorate.
Safety
Precautions
conditioner.
• DO NOT operate the air conditioner with
wet hands. It may cause electric shock.
• DO NOT touch the evaporator coils inside
the indoor unit. The evaporator coils are
sharp and may cause injury.

Page 5 
Indoor Unit Parts And Major Functions 2
Unit Parts
Fig. 2.1
Operating Conditions
Use the system under the following temperatures for safe and effective operation. If the air
conditioner is used under different conditions, it may malfunction or become less efficient.
COOL Mode HEAT mode DRY mode
Indoor
Temperature
17-32°C
(62-90°F)
0-30°C
(32-86°F)
17-32°C
(62-90°F)
Outdoor
Temperature
0-50°C
(32-122°F)
-15-24°C
(5-76°F)
0-50°C
(32-122°F)
-15-50°C
(5-122°F)
(low temperature
cooling models)
Indoor Unit
Parts And Major
Functions
Drain hose
Refrigerant connecting
pipe
Display panel
Air inlet (with air filter in it)
Air flow louver (at air outlet)
Air flow louver (at air outlet)

Page 6 
Features
Indoor Unit
Parts And Major
Functions
Default Setting
When the air conditioner restarts after a power
failure, it will default to the factory settings
(AUTO mode, AUTO fan, 24°C (76°F)). This
may cause inconsistencies on the remote
control and unit panel. Use your remote
control to update the status.
Auto-Restart (some models)
In case of power failure, the system will
immediately stop. When power returns, the
Operation light on the indoor unit will flash. To
restart the unit, press the ON/OFF button on
the remote control. If the system has an auto
restart function, the unit will restart using the
same settings.
Energy Saving Tips
• DO NOT set the unit to excessive temperature levels.
• While cooling, close the curtains to avoid direct sunlight.
• Doors and windows should be kept closed to keep cool or warm air in the room.
• DO NOT place objects near the air inlet and outlet of the unit.
• Set a timer and use the built-in SLEEP/ECONOMY mode if applicable.
• If you don’t plan to use the unit for a long time, remove the batteries from the remote control.
• Clean the air filter every two weeks.
• Adjust louvers properly and avoid direct airflow.
Louver Angle Memory Function (Optional)
Some models are designed with a louver angle
memory function. When the unit restarts after a
power failure, the angle of the horizontal louvers
will automatically return to the previous position.
The angle of the horizontal louver should not be
set too small as condensation may form and drip
into the machine. To reset the louver, press the
manual button, which will reset the horizontal
louver settings.
Refrigerant Leak Detection System
(some models)
In the event of a refrigerant leak, the LCD screen
will display “EC” and the LED indicator light will
flash.
Closing curtains during heating also
helps keep the heat in
Doors and windows should be kept
closed

Page 7 
Manual Operations 3
Manual Operations
This display panel on the indoor unit can be used
to operate the unit in case the remote control
has been misplaced or is out of batteries.
Fig. 3.1
Fig. 3.3 Fig. 3.4
Fig. 3.2 Fig. 3.5
•
MANUAL button: This button selects the
mode in the following order: AUTO, FORCED
COOL, OFF.
• FORCED COOL mode: In FORCED COOL
mode, the Operation light flashes. The system
will then turn to AUTO after it has cooled with
a high wind speed for 30 minutes. The remote
control will be disabled during this operation.
• OFF mode: When the panel is turned OFF, the
unit turns off and the remote control is
re-enabled.
Infrared receiver
Timer indicator
PRE-DEF
(pre-heating/defrost)
indicator
Operation indicator
Adjusting Air Flow Direction
CAUTIONS
Do not try to adjust the horizontal louver by
hand. This may cause damage the mechanism
and result in condensation forming on the air
outlets.
Manual button
Manual Swing: Press Air Direction to fix the
louver at a desired angle.The louver swings
(upward or downward) at a different angle with
each press of the button.
When cooling
Adjust the louver downwards (horizontally).
(See Fig.3.3).
When heating
Adjust the louver vertically. (See Fig.3.4)
Adjust the Air Flow Direction Left and Right
Hold the knob and move the louver.
You will find a knob on the left-side and the
right-side blades.(See Fig.3.5)

1. Open the front panel.
Fig. 4.1
Fig. 4.2
2. Remove the air filter.
Page 8 
Care And Maintenance
Safety Precautions
• Contact an authorized service technician for
repair or maintenance. Improper repair and
maintenance may cause water leakage,
electrical shock, or fire, and may void your
warranty.
• DO NOT substitute a blown fuse with a
higher or lower amperage rating fuse, as this
may cause circuit damage or an electrical fire.
• Make sure the drain hose is set up according
to the instructions. Failure to do so could
cause leakage and result in personal
property damage, fire and electric shock.
• Make sure that all wires are connected
properly. Failure to connect wires according
to instructions can result in electrical shock
or fire.
Unit Maintenance
BEFORE CLEANING OR
MAINTENANCE
• Always turn off your air conditioning system
and disconnect the power supply before
cleaning or maintenance.
•
DO NOT use chemicals or chemically
treated cloths to clean the unit.
•
DO NOT use benzene, paint thinner,
polishing powder or other solvents to clean
the unit. They can cause the plastic surface
to crack or deform.
•
DO NOT wash the unit under running water.
Doing so creates an electrical hazard.
•
DO NOT use water hotter than 40°C (104°F)
to clean the front panel. This can cause the
panel to become deformed or discolored.
• Clean the unit using a damp, lint-free cloth
and neutral detergent. Dry the unit with a
dry, lint-free cloth.
How To Clean The Air Filter
The filter prevents dust and other particles from
entering the indoor unit. Dust buildup can reduce
the efficiency of the air conditioner. For optimum
efficiency, clean the air filter every two weeks or
more frequently if you live in a dusty area.
Replace the filter with a new one if it’s heavily
clogged and cannot be cleaned.
WARNING: DO NOT REMOVE OR
CLEAN THE FILTER BY YOURSELF
Removing and cleaning the filter can be
dangerous. Removal and maintenance must be
performed by a certified technician.
NOTE: In households with animals, you will
have to periodically wipe down the grille to
prevent animal hair blocking airflow.
Care And Maintenance 4
Press the claws on the right and left sides of
the air filter down slightly, then pull upward.
Air Outlet
Selection Switch

Care And Maintenance
Page 9 
Care And Maintenance
5. Rinse the filter with clean water and allow
it to air-dry. DO NOT let the filter dry in
direct sunlight.
6. Reinstall the filter.
Repairing Refrigerant Leaks
WARNING
• If the refrigerant leaks, turn off the air
conditioner and any combustible heating
devices, ventilate the room and call your
dealer immediately. Refrigerant is both toxic
and flammable.
DO NOT use the air
conditioner until the leak is repaired.
• When the air conditioner is installed in a
small room, measures must be taken to
prevent the refrigerant concentration from
exceeding the safety limit in the event of
refrigerant leakage. Concentrated
refrigerant causes a severe health and safety
threat.
Refrigerant Leak Detection System (some
models)
• In the event of a refrigerant leak, the LCD
screen will display “EC” and the LED
indicator light will flash.
Preparation For Periods Of Non-Use
Maintenance after Extended Non-Use
1. Remove any obstacles blocking the vents of
both the indoor and outdoor units.
2.
Clean the air filter and the front grille of the
indoor unit. Reinstall the clean, dry air filter in
its original position.
3.
Turn on the main power switch at least 12
hours prior to operating the unit.
Storing the Unit While Not In Use
1.
Run the appliance on FAN mode for 12 hours
in a warm room to dry it and prevent mold.
2.
Turn off the appliance and unplug it.
3.
Clean the air filter according to the
instructions in the previous section. Reinstall
the clean, dry filter before storing.
4.
Remove the batteries from the remote control.
3.
Hold the tabs of the frame,and remove the
4 claws. (The special function filter can be
washed with water once every 6 months. It
isrecommended that you replace it once
every 3 years.)
4.
Clean the air filter by vacuuming the surface
or washing it in warm water with mild
detergent.
A. If using a vacuum cleaner, the inlet side
should face the vacuum.
Fig. 4.4
Fig. 4.3
B.
If using water, the inlet side should face
down and away from the water stream.
Fig. 4.5
Special function filter

Page 10 
Troubleshooting
CAUTIONS
If one of the following conditions occurs, switch off the power supply immediately and contact
your dealer for further assistance.
• The operation light continues to flash rapidly after the unit has been restarted.
• The remote control buttons do not work.
• The unit continually trips fuses or circuit breakers.
• A foreign object or water enters the air conditioner.
• Other abnormal situations.
Common Problems
The following symptoms are not a malfunction and in most situations will not require repairs.
Problem Possible Causes
Unit does not
turn on when
pressing ON/
OFF button
The unit has a 3-minute protection feature that prevents the unit from
overloading. The unit cannot be restarted within three minutes of being
turned off.
Cooling and Heating Models: If the Operation light and PRE-DEF (Pre-heating/
Defrost) indicators are lit up, the outdoor temperature is too cold and the unit’s
anti-cold wind is activated in order to defrost the unit.
In Cooling-only Models: If the “Fan Only” indicator is lit up, the outdoor
temperature is too cold and the unit’s anti-freeze protection is activated in
order to defrost the unit.
The unit changes
from COOL mode
to FAN mode
The unit changes its setting to prevent frost from forming on the unit. Once
the temperature increases, the unit will start operating again.
The set temperature has been reached, at which point the unit turns off the
compressor. The unit will resume operating when the temperature fluctuates
again.
The indoor unit
emits white mist
In humid regions, a large temperature difference between the room’s air and
the conditioned air can cause white mist.
Both the indoor
and outdoor units
emit white mist
When the unit restarts in HEAT mode after defrosting, white mist may be
emitted due to moisture generated from the defrosting process.
The indoor unit
makes noises
A squeaking sound is heard when the system is OFF or in COOL mode. The
noise is also heard when the drain pump (optional) is in operation.
A squeaking sound may occur after running the unit in HEAT mode due to
expansion and contraction of the unit’s plastic parts.
Both the indoor
unit and outdoor
unit make noises
A low hissing sound may occur during operation. This is normal and is caused
by refrigerant gas flowing through both the indoor and outdoor units.
A low hissing sound may be heard when the system starts, has just stopped
running or is defrosting. This noise is normal and is caused by the refrigerant
gas stopping or changing direction.
The outdoor unit
makes noises The unit will make different sounds based on its current operating mode.
Troubleshooting 5