6Special RemarksHow it works • Once the room temperature reaches the level that was set, the unitrepeats the cycle of turning on and off automatically.• In order to prevent the humidity in the room from rising again, the indoorfan also turns off when the unit stops operating.• The fan speed is set to ‘‘LO.’’ automatically, and cannot be adjusted.• ‘‘DRY’’ operation is not possible if the outdoor temperature is 15°C or less.Heating performance • Because this appliance heats a room by utilizing the heat of the outside air(heat pump system), the heating efficiency will fall off when the outdoortemperature is very low. If sufficient heat cannot be obtained with this heatpump, use another heating appliance in conjunction with this unit.Defrosting • When the outdoor temperature is low, frost or ice may form on the outdoorheat exchanger coil, reducing the heating performance. When thishappens, a microcomputer-controlled defrosting system operates. At thesame time, the fan on the indoor unit stops (or runs at very low speed insome cases) and the ‘‘STANDBY’’ indicator appears on the display untildefrosting is completed. Heating operation then restarts after severalminutes. (This interval will vary slightly depending upon the outdoortemperature and the way in which frost forms.)(standby) on the display • For several minutes after the start of heating operation, the indoor fan willnot start running (or it will run at very low speed in some cases) until theindoor heat exchanger coil has warmed up sufficiently. This is because acold draft prevention system is operating. During this period, the ‘‘ ’’(standby) indicator remains displayed.• ‘‘ ’’ (standby) remains displayed during defrosting or when thecompressor has been turned off (or when the unit is running at very lowspeed) by the thermostat when the system is in the heating mode.• Upon completion of defrosting and when the compressor is turned onagain, ‘‘ ’’ (standby) will turn off automatically as heating operationresumes.Should the power fail while the unit is runningIf the power supply for this unit is temporarily cut off, the unit will automaticallyresume operation (once the power is restored) using the same settings beforethe power was cut off.‘‘DRY’’ OperationHeating OperationNOTEOI-100-6-EN