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Unit 

Specifications 

and Featur

es

Page 7 

Achieving Optimal Performance

Optimal performance for the COOL, HEAT, and DRY modes can be achieved in the following 

temperature ranges. When your air conditioner is used outside of these ranges, certain safety 

protection features will activate and cause the unit to perform less than optimally.

                                                             

Room 

Temperature

17°-32°C (63°-90°F)

 0°-30°C (32°-86°F) 

13°-32°C (50°-90°F)

Outdoor 

Temperature

18°-43°C (64°-109°F)

-7°-24°C (19°-75°F)

 18°-43°C (52°-109°F) 

-7°-43°C (19°-109°F)

 

(For models with low-temp cooling systems)

18°-43°C (64°-109°F)

18°-54°C (64°-129°F)

 

 (For special tropical models)

18°-54°C (64°-129°F) 

 

(For special tropical models)

COOL mode

HEAT mode

DRY mode

COOL mode

HEAT mode

DRY mode

Room Temperature

17°C - 32°C
(63°F - 90°F)

0°C - 30°C
(32°F - 86°F)

10°C - 32°C
(50°F - 90°F)

Outdoor 
Temperature

0°C - 50°C
(32°F - 122°F)

-15°C - 30°C
(5°F - 86°F)

0°C - 50°C
(32°F - 122°F)

 0°C - 60°C
(32°F - 140°F)
(For special
tropical models)

 0°C - 60°C
(32°F - 140°F)
(For special
tropical models)

-15°C - 50°C
(5°F - 122°F)
(For models with 
low temp. cooling 
systems.)

To further optimize the performance of your unit, do the following:

Keep doors and windows closed.

Limit energy usage by using TIMER ON and TIMER OFF functions.

Do not block air inlets or outlets.

Regularly inspect and clean air filters.

FOR OUTDOOR UNITS  
WITH AUXILIARY  
ELECTRIC HEATER

Inverter Split Type

Fixed-speed Type

When outside 

temperature is below 0°C
 (32°F ), we strongly  
recommend keeping the
unit plugged in at all 
time to ensure smooth
ongoing performance. 

Summary of Contents for BM12YDIY22C

Page 1: ...NDITIONER CS78421 548 754 IMPORTANT NOTE Read this manual carefully before installing or operating your new air conditioning unit Make sure to save this manual for future reference Owner s Manual DIY Series All Model Numbers ...

Page 2: ...Safety Precautions 04 Unit Specifications and Features 06 Table of Contents Owner s Manual 0 1 SAFETY FIRST Manual Operation Without Remote 11 2 ...

Page 3: ... and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants For more details please refer to the Information on servicing on INSTALLATION MANUAL This is only required for the unit adopts R32 R290 Refrigerant Caution Risk of fire flammable materials For R32 R290 units only ...

Page 4: ...Ask an authorized dealer to install this air conditioner Inappropriate installation may cause water leakage electric shock or fire All repairs maintenance and relocation of this unit must be performed by an authorized service technician Inappropriate repairs can lead to serious injury or product failure WARNINGS FOR PRODUCT USE If an abnormal situation arises like a burning smell immediately turn ...

Page 5: ...ed together with burners or other heating devices thoroughly ventilate the room to avoid oxygen deficiency Turn off the air conditioner and unplug the unit if you are not going to use it for a long time Turn off and unplug the unit during storms Make sure that water condensation can drain unhindered from the unit Do not operate the air conditioner with wet hands This may cause electric shock Do no...

Page 6: ...re setting When ECO function some units is activated the illuminates gradually one by one as set temperature in one second interval Power Cable Some Units Remote Control Remote Control Holder Some Units Functional Filter On Front of Main Filter Some Units Louver Front Panel Display window A Display window B Display window C when Wireless Control feature is activated some units when ECO function is...

Page 7: ...COOL mode HEAT mode DRY mode COOL mode HEAT mode DRY mode Room Temperature 17 C 32 C 63 F 90 F 0 C 30 C 32 F 86 F 10 C 32 C 50 F 90 F Outdoor Temperature 0 C 50 C 32 F 122 F 15 C 30 C 5 F 86 F 0 C 50 C 32 F 122 F 0 C 60 C 32 F 140 F For special tropical models 0 C 60 C 32 F 140 F For special tropical models 15 C 50 C 5 F 122 F For models with low temp cooling systems To further optimize the perfor...

Page 8: ... power to dry up condensed water and prevent mildew growth Unit Specifications and Features Wireless Control some units Wireless control allows you to control your air conditioner using your mobile phone and a wireless connection Louver Angle Memory some units When turning on your unit the louver will automatically resume its former angle Refrigerant Leakage Detection some units The indoor unit wi...

Page 9: ...n be set by remote control please refer to the Remote Control Manual NOTE ON LOUVER ANGLES When using COOL or DRY mode do not set louver at too vertical an angle for long periods of time This can cause water to condense on the louver blade which will drop on your floor or furnishings See Fig A When using COOL or HEAT mode setting the louver at too vertical an angle can reduce the performance of th...

Page 10: ... C 2 F after 1 hour and will increase an additional 1 C 2 F after another hour When in HEAT mode the unit will decrease the temperature by 1 C 2 F after 1 hour and will decrease an additional 1 C 2 F after another hour It will hold the new temperature for 5 hours then the unit will turn off automatically Note The SLEEP function is not available in FAN or DRY mode Sleep Operation Set temperature Sa...

Page 11: ...the indoor unit 2 Locate the MANUAL CONTROL button on the right hand side of the unit 3 Press the MANUAL CONTROL button one time to activate FORCED AUTO mode 4 Press the MANUAL CONTROL button again to activate FORCED COOLING mode 5 Press the MANUAL CONTROL button a third time to turn the unit off 6 Close the front panel Manual Operation Without Remote 2 CAUTION Manual Operation Without Remote Manu...

Page 12: ... be bad for your health Make sure to clean the filter once every two weeks 1 Lift the front panel of the indoor unit 2 Grip the tab on the end of the filter lift it up then pull it towards yourself 3 Now pull the filter out 4 If your filter has a small air freshening filter unclip it from the larger filter Clean this air freshening filter with a hand held vacuum 5 Clean the large air filter with w...

Page 13: ...n the indoor unit will flash nF This is a reminder to replace your filter After 15 seconds the unit will revert to its previous display To reset the reminder press the LED button on your remote control 4 times or press the MANUAL CONTROL button 3 times If you don t reset the reminder the nF indicator will flash again when you restart the unit CAUTION Any maintenance and cleaning of outdoor unit sh...

Page 14: ...ts the unit from overloading The unit cannot be restarted within three minutes of being turned off The unit may change its setting to prevent frost from forming on the unit Once the temperature increases the unit will start operating in the previously selected mode again The set temperature has been reached at which point the unit turns off the compressor The unit will continue operating when the ...

Page 15: ...de Dust is emitted from either the indoor or outdoor unit The unit may accumulate dust during extended periods of non use which will be emitted when the unit is turned on This can be mitigated by covering the unit during long periods of inactivity The unit emits a bad odor The unit may absorb odors from the environment such as furniture cooking cigarettes etc which will be emitted during operation...

Page 16: ...ther unit is blocked Turn the unit off remove the obstruction and turn it back on Doors and windows are open Make sure that all doors and windows are closed while operating the unit Excessive heat is generated by sunlight Close windows and curtains during periods of high heat or bright sunshine Too many sources of heat in the room people computers electronics etc Reduce amount of heat sources Low ...

Page 17: ...late the voltage Poor heating performance The outdoor temperature is extremely low Use auxiliary heating device Cold air is entering through doors and windows Make sure that all doors and windows are closed during use Low refrigerant due to leak or long term use Check for leaks re seal if necessary and top off refrigerant Indicator lamps continue flashing The unit may stop operation or continue to...

Page 18: ...tions Dispose of the appliance at designated municipal electronic waste collection facility When buying a new appliance the retailer will take back the old appliance free of charge The manufacturer will take back the old appliance free of charge Sell the appliance to certified scrap metal dealers Special notice Disposing of this appliance in the forest or other natural surroundings endangers your ...

Page 19: ...The design and specifications are subject to change without prior notice for product improvement Consult with the sales agency or manufacturer for details CS368U AB 16122000002334 20170929 ...

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