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owner’s manual

2

Do not operate the air conditioner with a wet hand. 

An electric shock may happen. 

Do not touch the heat exchanger fins. 

These fins are sharp and could result in cutting injuries.

Do not place items which might be damaged by moisture 
under the indoor unit. 

Condensation may form if the humidity is above 80%, the drain 
outlet is blocked or the filter is polluted. 

After a long use, check the unit stand and fitting for damage.

 

If damaged, the unit may fall and result in injury.

To avoid oxygen deficiency, ventilate the room sufficiently if 
equipment with burner is used together with the air 
conditioner.

Arrange the drain hose to ensure smooth drainage.

Incomplete drainage may cause wetting of the building, furniture 
etc.

Never touch the internal parts of the controller.

 

Do not remove the front panel. Some parts inside are dangerous 
to touch, and a machine trouble may happen.

Never expose little children, plants or animals directly to 
the air flow. 

Adverse influence to little children, animals and plants may result.

Do not allow a child to mount on the outdoor unit or avoid 
placing any object on it.

 

Falling or tumbling may result in injury.

Do not operate the air conditioner when using a room 
fumigation - type insecticide. 

Failure to observe could cause the chemicals to become 
deposited in the unit, which could endanger the health of those 
who are hypersensitive to chemicals.

Do not place appliances which produce open fire in places 
exposed to the air flow from the unit or under the indoor unit.

 

It may cause incomplete combustion or deformation of the unit 
due to the heat.

Do not install the air conditioner at any place where 
flammable gas may leak out. 

If the gas leaks out and stays around the air conditioner, a fire 
may break out. 

This appliance can be used by children aged from 8  years 
and above and persons 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.

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.

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.

Do not operate your air conditioner in a wet room such as a 
bathroom or laundry room.

2.    TEMPORARY  OPERATIONS

The air conditioner consists of the indoor unit, the outdoor unit, 
the connecting pipe and the remote controller.

(See Fig.1)

Function indicators on indoor unit display panel

Display panel

ǂǂǂǂ

Fig. 2-1

    

Display panel

ǂǂǂǂ

Fig. 2-2

   

Display panel

ǂǂǂǂ

Fig. 2-3

   

Display panel

ǂǂǂǂ

Fig. 2-4

   

Display panel

ǂǂǂǂ

Fig. 2-5

   

PRE-DEF indicator(cooling and heating
 type) 
or fan only indicator(cooling only type)

Infrared signal receiver

Operation lamp

Timer indicator

Alarm indicator

Temporary button

PRE-DEF indicator(cooling and heating type) 
or fan only indicator(cooling only type)

Infrared signal receiver

Operation lamp

Timer indicator

Alarm indicator

Temporary button

PRE-DEF indicator(cooling and heating
 type) 
or fan only indicator(cooling only type)

Infrared signal receiver

Operation lamp

Timer indicator

Alarm indicator

Temporary button

PRE-DEF indicator(cooling and heating type) 
or fan only indicator(cooling only type)

Infrared signal receiver

Infrared signal receiver

Operation lamp

Operation lamp

Operation lamp

Timer indicator

Timer indicator

Alarm indicator

Alarm indicator

Temporary button

Temporary button

Temperature display

Temperature display

DEF./FAN

OPERATION

TIMER

MANUAL

ALARM

MANUAL

ALARM

DEF./FAN

TIMER

OPERATION

MANUAL

ALARM

DEF./FAN

TIMER

OPERATION

MANUAL

OPERATION                     TIMER                              DEF. / FAN                       ALARM

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Summary of Contents for IUS0736C21

Page 1: ...Ceiling And Floor Type OWNER S MANUAL Thank you very much for purchasing our air conditioner Before using your air conditioner please read this manual carefully and keep it for future reference ...

Page 2: ...NDOOR UNIT OUTDOOR UNIT 1 2 3 5 4 7 6 8 8 8 8 8 8 9 9 7 All the pictures in this manual are for explanation purpose only They may be slightly different from the air conditioner you purchased depend on model The actual shape shall prevail NOTE OR 9 7 8 RESE T TIM E ON TIM E OFF CLO CK SW ING AIR DIRE CTIO N OK ECO SW ING MO DE FAN SPE ED 0 LOCK C H AUT O CO OL DR Y HEA T FAN TEM P SET CLOC K SET HO...

Page 3: ...ion systems available If electrical appliances are disposed of in landfills or dumps hazardous substances can leak into the groundeater and get into the food chain damaging your health and well being To prevent refrigerant leak contact your dealer When the system is installed and runs in a small room it is required to keep the concentration of the refrigerant if by any chance coming out below the ...

Page 4: ... 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 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 th...

Page 5: ...r and remove the batteries from the remote control ler When the power switch is connected some energy will be consumed even if the air conditioner isn t in operation So please disconnect the power to save energy And please switch the power on 12 hours before you restart the unit to ensure a smooth operation A clogged air filter will reduce cooling or heating efficiency please clean it once two wee...

Page 6: ...king efficiency of the air conditioner may greatly decrease Therefore the filter must be cleaned once two weeks during long time usage If the air conditioner is installed in a dust place clean the the air filter frequent If the accumulated dust is too heavy to be cleaned please replace the filter with a new one replaceable air filter is an optional fitting Before you clean the air conditioner be s...

Page 7: ...remely contaminated the temperature distribution inside a room becomes uneven It is necessary to clean the interior of the indoor unit Ask your dealer for details on cleaning the unit This operation requires a qualified service erson When the system is changed over to heating operation after defrost operation Moisture generated by defrost becomes steam and is exhausted A continuous low shah sound ...

Page 8: ...leaks from indoor unit Other malfunctions 8 TROUBLESHOOTING If one of the following malfunctions occur stop operation shut off the power and contact with your dealer If the system does not properly operate except the above mentioned cases or the above mentioned malfunctions is evident investigate the system according to the following procedures See in Table 8 2 8 1 Troubles and causes of air condi...

Page 9: ...locked Doors and windows are open Sunlight directly shine Too much heat resource Outdoor temp is too high Leakage of refrigerant or lack of refrigerant Wait for the comeback of power Switch on the power Replace the fuse Replace the batterises or check the controller Set the temperature properly Wait Check leakage and rightly recharge refrigerant Vacuum and recharge refrigerant Maintenance or chang...

Page 10: ...emote controller is properly directed to the infrared signal receiver of the indoor unit when the ON OFF button is pressed Directly transmit the signal transmitter of the remote controller to the infrared signal receiver of the indoor unit and then repeatly push the ON OFF button twice The indication on the display disappears after a lapse of time Check whether the timer operation has come to an e...

Page 11: ...QS01U 006AW The design and specifications are subject to change without prior notice for product improvement Consult with the sales agency or manufacturer for details ...

Page 12: ......

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