En-1PART No. 9320455002
AIR CONDITIONER
Wall Mounted Type
ASTG18KMCA
ASTG22KMCA
ASTG24KMCA
OPERATING MANUAL
Before using this product, read these instructions thoroughly and keep this manual for future reference.
Safety Precautions
To prevent personal injury, injury to others, or property damage, read this section carefully before you use this product, and be sure to comply to the 
following safety precautions.
Incorrect operation due to failure to follow the instructions may cause harm or damage, the seriousness of which is classifi ed as follows:
 WARNING  CAUTION
This mark warns of death or serious injury. This mark warns of injury or damage to property.
 
This mark denotes an action that is PROHIBITED.
 
This mark denotes an action that is COMPULSORY.
• Explanation of symbols displayed on the indoor unit or outdoor unit.
WARNING
This symbol shows that this appliance uses a fl ammable refrigerant. If the refrigerant is leaked and exposure to an external 
ignition source, there is a risk of fi re.
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.
 WARNING
• The appliance shall be installed, operated and stored in a 
room with a fl oor area larger than 2.06m
2
.
• The appliance contains no user-serviceable parts. Always 
consult authorized service personnel for repairing, installation, 
and relocation of this product.
  Improper installation or handling will cause leakage, electric 
shock, or fi re.
• In the event of a malfunction such as burning smell, 
immediately stop operation of the air conditioner, and 
disconnect all the power supply by turning off the electrical 
breaker or disconnecting the power plug. Then consult 
authorized service personnel.
• Take care not to damage the power supply cable.
  If it is damaged, it should only be replaced by authorized 
service personnel.
• In the event of refrigerant leakage, be sure to keep away 
from fi re or any fl ammables, and consult authorized service 
personnel.
• If you see lightning or hear thunder, there might be a lightning 
strike.
  To prevent electric shock hazard, turn off the air conditioner 
by using the remote controller, and do not touch the unit or 
the power plug during thunderstorm.
• The appliance shall be stored in a room without continuously 
operating ignition sources (for example: open fl ames, an 
operating gas appliance or an operating electric heater).
• The appliance shall be stored in a well-ventilated area.
• Be aware that refrigerants may not contain an odour.
• The appliance shall be stored so as to prevent mechanical 
damage from occurring.
• Disposing of the product shall be done properly, in 
compliance with national or regional regulations.
• During transportation or relocation of the indoor unit, pipes 
shall be covered with the wall hook bracket for protection.
Do not move the appliance by holding the indoor unit pipes.
(The stress applied to the pipe joints may cause the 
fl ammable gas to leak during operation).
• This appliance is not intended for use by persons (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.
(continued)
Contents
Safety Precautions ..........................................................En-1
Indoor Unit Overview and Operations .............................En-3
Remote Controller Overview and Operations ..................En-4
Timer Operation...............................................................En-6
Human Sensor (Energy Saving) ......................................En-8
Demand Response and Indoor Unit Operation ...............En-8
General Informations on Operation .................................En-9
Care and Cleaning.........................................................En-10
Troubleshooting .............................................................En-12
R32
REFRIGERANT
This Air Conditioner contains and 
operates with refrigerant R32.
THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED
BY QUALIFIED PERSONNEL.
Refer to Commonwealth, State, Territory and local legislation,
regulations, codes, installation & operation manuals, before 
the installation, maintenance or service of this product.
9320455002_OM_EN.indd   19320455002_OM_EN.indd   1 7/23/2013   10:34:29 AM7/23/2013   10:34:29 AM