Справочник Пользователя для Hitachi RAS-SX10HAK / RAC-SX10HAK

Do not use a stove or any 
other high temperature 
devices in proximity to 
the indoor unit.

– 39 –

Heating capability
•  This room air conditioner utilizes a heat pump system that absorbs exterior heat and brings it into a room to 

be heated. As the ambient temperature gets lower, heating capability will also lower. In such a situation, the 
PAM and inverter work to increase compressor rpm to keep the unit’s heating capability from decreasing. If 
the unit’s heating performance is still unsatisfactory, other heating appliances should be used to augment 
this unit’s performance.

• The air conditioner is designed to heat an entire room so that it may take some time before you feel warm. 

Timer operation is recommended for effective preheating ahead of the desired time. (Page 26)

• When outside temperature becomes lower while humidity remains high, condensation forms on the heat 

exchanger of the outdoor unit and the heating efficiency may be affected if condensation is not removed. To 
prevent this problem, the air conditioner performs condensation-removing operation automatically. At this 
time, the heating operation is suspended and it usually takes approximately 5~10 minutes (maximum of 20 
minutes) to resume the heating operation.

Cooling, dehumidifying and dry cool capabilities
• If the heat present in a room exceeds the unit’s cooling capacity (for example, if there are many people in 

the room or other heating appliances are used), the preset room temperature may not be reached.

•  The preset temperature may not be reached if a heat source or humidity which exceeds the air conditioner’s 

dehumidifying ability is present in the room.

  Piping which is too long could lower the heating/cooling performance.

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EN_39.ai   2010-6-28   17:47:06

EN_39.ai   2010-6-28   17:47:06