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Special Remarks
• Once the room temperature reaches the level that was set, the unit
repeats the cycle of turning on and off automatically.
• In order to prevent the humidity in the room from rising again, the indoor
fan 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 59 °F or
less.
• 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
outdoor temperature is very low. If sufficient heat cannot be obtained with
this heat pump, use another heating appliance in conjunction with this
unit.
• When the outdoor temperature is low, frost or ice may form on the
outdoor heat exchanger coil, reducing the heating performance.
When this happens, a microcomputer-controlled defrosting system
operates. At the same time, the fan on the indoor unit stops (or runs at
very low speed in some cases) and the (STANDBY) indicator appears
on the display until defrosting is completed. Heating operation then
restarts after several minutes. (This interval will vary slightly depending
upon the outdoor temperature and the way in which frost forms.)
• For several minutes after the start of heating operation, the indoor fan will
not start running (or it will run at very low speed in some cases) until the
indoor heat exchanger coil has warmed up sufficiently. This is because a
cold draft prevention system is operating. During this period, the
(STANDBY) indicator remains displayed.
• The indicator remains displayed during defrosting or when the
compressor has been turned off (or when the unit is running at very low
speed) by the thermostat when the system is in the heating mode.
• Upon completion of defrosting and when the compressor is turned on
again, (STANDBY) will turn off automatically as heating operation
resumes.
Should the power fail while the unit is running
If the power supply for this unit is temporarily interrupted, the unit will
automatically resume operation (once the power is restored) with the
same settings that were in effect before the power was interrupted.
OI-432-01 - 12EG
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“DRY” Operation
How it works
Heating Operation
Heating performance
Defrosting
(STANDBY) on
the display
NOTE
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