Fujitsu ABT18LB Operating Manual - Page 17

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OPERATING TIPS

AUTO Restart

In Event of Power Interruption

● Should the power supply to the air conditioner be inter-

rupted by a power failure, the air conditioner will restart

automatically in the previously selected mode once the

power is restored.

● Should a power failure occur during TIMER operation, the

timer will be reset and the unit will begin (or stop) oper-

ating under the new timer setting. In this event, the TIMER

indicator lamp (green) will flash (see page. 4).

Multi-type Air conditioner

This indoor unit can be connected to a multi-type outdoor unit. The multi-type air conditioner allows multiple indoor units to

be operated in multiple locations. The indoor units may be operated simultaneously, in accordance with their respective

output.

Simultaneous Use of Multiple Units

Instructions relating to inverter (

● When using a multi-type air conditioner, the multiple

indoor units can be operated simultaneously, but when

two or more indoor units of the same group are oper-

ated simultaneously, the heating and cooling efficiency

will be less than when a single indoor unit is used alone.

Accordingly, when you wish to use more than one in-

door unit for cooling at the same time, the use should

be concentrated at night and other times when less out-

put is required. In the same way, when multiple units

are used simultaneously for heating, it is recommended

that they be used in conjunction with other auxiliary

space heaters, as required.

● Seasonal and outdoor temperature conditions, the struc-

ture of the rooms and the number of persons present

may also result in differences of operating efficiency.

We recommend that you try various operating patterns

in order to confirm the level of heating and cooling out-

put provided by your units, and use the units in the way

that best matches your family's lifestyle.

● If you discover that one or more units delivers a low

level of cooling or heating during simultaneous opera-

tion, we recommend that you stop simultaneous opera-

tion of the multiple units.

● Operation cannot be done in the following different op-

❖

erating modes.

If the indoor unit is instructed to do an operating mode

that it cannot perform, the OPERATION indicator lamp

(red) on the indoor unit will flash (1 second on, 1 sec-

ond off) and the unit will go into the standby mode.

Heating mode and cooling mode (or dry mode)

Heating mode and fan mode

❖

) are applicable only to "INVERTER MODEL".

● Use of other electrical appliances (electric shaver, etc.) or

nearby use of a wireless radio transmitter may cause the

air conditioner to malfunction. In this event, temporarily

disconnect the power supply plug, reconnect it, and then

use the remote control unit to resume operation.

● Operation can be done in the following different operat-

❖

ing modes.

Cooling mode and dry mode

Cooling mode and fan mode

Dry mode and fan mode

● The operating mode (heating mode or cooling (dry)

❖

mode) of the outdoor unit will be determined by the op-

erating mode of the indoor unit that was operated first.

If the indoor unit was started in fan mode, the operating

mode of the outdoor unit will not be determined.

For example, if indoor unit (A) was started in fan mode

and then indoor unit (B) was then operated in heating

mode, indoor unit (A) would temporarily start opera-

tion in fan mode but when indoor unit (B) started oper-

ating in heating mode, the OPERATION indicator lamp

(red) for indoor unit (A) would begin to flash (1 second

on, 1 second off) and it would go into standby mode.

Indoor unit (B) would continue to operate in heating

mode.