Auto Restart - Fujitsu Inverter Halcyon Operating Manual

OPERATING TIPS

AUTO Restart

In Event of Power Interruption
● The power supply to the air conditioner is stopped by a
power interruption. The air conditioner will then restart
automatically in its previous mode when the power is
restored.
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
● When using a multi-type air conditioner, the multi-
ple indoor units can be operated simultaneously, but
when 2 or more indoor units of the same group are
operated simultaneously, the heating and cooling ef-
fi ciency will be less than when a single indoor unit is
used alone. Accordingly, when you wish to use more
than 1 indoor unit for cooling at the same time, the
use should be concentrated at night and other times
when less output 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
structure of the rooms and the number of persons
present may also result in differences of operating ef-
fi ciency. We recommend that you try various operating
patterns in order to confi rm the level of heating and
cooling output provided by your units, and use the
units in the way that best matches your family's life-
style.
● If you discover that 1 or more units delivers a low level
of cooling or heating during simultaneous operation,
we recommend that you stop simultaneous operation
of the multiple units.
● Operation cannot be done in the following different
operating modes.
If the indoor unit is instructed to do an operating mode
that it cannot perform, the OPERATION indicator lamp
(green) on the indoor unit will flash (1 second on, 1
second off) and the unit will go into the standby mode.
Heating mode and cooling mode (or dry mode)
Heating mode and fan mode
Notice
● During use of the heating mode, the outdoor unit will
occasionally commence the defrost operation for brief
periods. During the defrosting operation, if the user
sets the indoor unit for heating again, the defrosting
mode will continue, and the heating operation will be-
gin after completion of defrosting, with the result that
some time may be required before warm air is emitted.
En-17
● If a power interruption occurs during TIMER operation, the
timer will be reset and the indoor unit will begin (or stop)
operation at the new time setting. In the event that this
kind of timer fault occurs, the TIMER Indicator Lamp will
fl ash (see Page. 3).
● 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, tempo-
rarily turn off the circuit breaker, turn it on and then use
the Remote Controller to resume operation.
● Operation can be done in the following different oper-
ating 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
operating 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 deter-
mined.
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
operating in heating mode, the OPERATION indicator
lamp (green) for indoor unit (A) would begin to fl ash (1
second on, 1 second off) and it would go into standby
mode. Indoor unit (B) would continue to operate in
heating mode.
● During use of the heating mode, the top of the indoor
unit may become warm, but this is due to the fact
that coolant is circulated through the indoor unit even
when it is stopped; it is not a malfunction.