Hitachi RAS-SX10HAK / RAC-SX10HAK Understanding The Operating Mechanism, English

UNDERSTANDING THE OPERATING MECHANISM

NAMES AND FUNCTIONS OF EACH PART (Page 4)

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.

CAUTION

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

PROHIBITION

ENGLISH

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