18
Maintenance
Operation Mechanism
■ Heating performance
• This air conditioner utilizes outside air for heating; its heating performance reduces as
outside temperature decreases.
- In the event that heating is not suffi cient, please use an additional heating appliance.
■ Defrosting
• This appliance may start defrosting operation to melt frost formed in the outdoor unit.
1. Defrosting starts: The indoor unit fan stops (or the speed becomes extremely slow).
- “
” (STANDBY) appears.
2. Heating operation resumes after several minutes: The indoor unit fan remains
stopped (or it will run at a very slow speed) until the indoor heat exchanger coil warms up
suffi ciently.
- “ ” (STANDBY) appears.
3. Defrosting is complete: The indoor unit fan starts operation.
- “
” (STANDBY) disappears.
■ “DRY” operation
• Once the room temperature reaches the level that was set, the outdoor unit repeats the
cycle of turning on and off automatically.
• When the room temperature is more likely to reach the level that was set, the fan speed is
set to “breeze” (light wind) automatically.
■ Should power failure occur while the unit is running
• The unit will resume operation automatically. Operation settings prior to power failure will be
used.
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