Daikin FTXS24HVJU User Manual download pdf (Page 23)

Note for Multi System

What is a “Multi System”?

This system has one outdoor unit connected to multiple

indoor units.

Selecting the Operation Mode 

With the Priority Room Setting present but1.

inactive or not present.

When more than one indoor unit is operating, priority is

given to the ﬁ rst unit that was turned on.

In this case, set the units that are turned on later to the

same operation mode (*1) as the ﬁ rst unit.

Otherwise, they will enter the Standby Mode, and the

operation lamp will ﬂ ash; this does not indicate malfunction.

(*1)

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 ﬁ rst unit to be turned

on.

CAUTION

Normally, the operation mode in the room where the unit is ﬁ rst run is given priority, but the following situations are exceptions, so please •

keep this in mind.

If the operation mode of the ﬁ rst room is FAN Mode, then using HEAT Mode in any room after this will give priority to HEAT. In this situation,

the air conditioner running in FAN Mode will go on standby, and the operation lamp will ﬂ ash.

With the Priority Room Setting active.2.

See “Priority Room Setting” on the next page.

room

Outdoor

unit

NIGHT QUIET Mode (Available only for COOL operation) 

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 nighttime hours to prevent annoyance to neighbors.

The NIGHT QUIET Mode is activated when the temperature drops 9°F (5°C) or more below the highest temperature recorded •

that day. Therefore, when the temperature difference is less than 9°F (5°C), this function will not be activated.

NIGHT QUIET Mode reduces slightly the cooling efﬁ ciency of the unit.•

OUTDOOR UNIT QUIET Operation 

Page 17

With the Priority Room Setting present but inactive or not present.1.

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.

With the Priority Room Setting active.2.

See “Priority Room Setting” on the next page.

COOL / HEAT Mode Lock 

The COOL / HEAT Mode Lock requires initial programming during installation. Please consult your authorized dealer for

assistance. The COOL / HEAT Mode Lock sets the unit forcibly to either COOL or HEAT Mode. This function is convenient when

you wish to set all indoor units connected to the Multi system to the same operation mode.

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Daikin FTXS24HVJU User Manual Page 23

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