RA Indoor Unit SiBE18-821_C
226 Operation Manual
3.2.11 Note for Multi System
Note for Multi System
〈〈
What is a “Multi System”?
〉〉
Selecting the operation mode
Otherwise, they will enter the Standby Mode, and the operation lamp will flash; this does not indicate malfunction.
(*1)
〈CAUTION〉
NIGHT QUIET Mode (Available only for cooling operation)
OUTDOOR UNIT QUIET operation
Cooling / Heating mode lock (Available only for heat pump models)
This system has one outdoor unit connected to
multiple indoor units.
The Cooling / Heating Mode Lock requires initial programming during installation. Please consult your retailer or dealer
for assistance. The Cooling / Heating Mode Lock sets the unit forcibly to either Cooling or Heating Mode. This function
is convenient when you wish to set all indoor units connected to the Multi system to the same operation mode.
Outdoor
unit
Living
room
Living
room
C
room
C
room
B
room
B
room
A
room
A
room
When more than one indoor unit is operating, priority
is given to the first unit that was turned on.
In this case, set the units that are turned on later to
the same operation mode (*1) as the first unit.
• COOL, DRY and FAN mode may be used at the same time.
•
AUTO mode automatically selects COOL mode or HEAT mode based on the room temperature.
Therefore, AUTO mode is available when selecting the same operation mode as that of the
room with
the first unit to be turned on.
Normally, the operation mode in the room where the unit is first run is given priority, but the
following situations are exceptions, so please keep this in mind.
If the operation mode of the first room is FAN Mode, then using Heating Mode in any room after this will give priority to
heating. In this situation, the air conditioner running in FAN Mode will go on standby, and the operation lamp will flash.
NIGHT QUIET Mode requires initial programming during installation. Please consult your retailer or dealer for assistance.
NIGHT QUIET Mode reduces the operation noise of the outdoor unit during the night time hours to
prevent annoyance to neighbors.
•
The NIGHT QUIET Mode is activated when the temperature drops 5°C or more below the highest temperature
recorded that day. Therefore, when the temperature difference is less than 5°C, this function will not be activated.
• NIGHT QUIET Mode reduces slightly the cooling (heating) efficiency of the unit.
When using the OUTDOOR UNIT QUIET operation feature with the Multi system, set all indoor
units to OUTDOOR UNIT QUIET operation using their remote controllers.
When clearing OUTDOOR UNIT QUIET operation, clear one of the operating indoor units using their remote controller.
However OUTDOOR UNIT QUIET operation display remains on the remote controller for other rooms.
We recommend you release all rooms using their remote controllers.
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