Operating Tips; Heating Performance; Low Ambient Cooling; Group Control - Fujitsu Inverter ART Series Operating Manual

OPERATING TIPS

Instructions relating to heating (*) are applicable only to "HEAT & COOL MODEL" (Reverse Cycle).

*Heating Performance

z This air conditioner operates on the heat-pump principle,
absorbing heat from outdoor air and transferring that
heat indoors. As a result, the operating performance is
reduced as outdoor air temperature drops. If you feel that
insuffi cient heating performance is being produced, we
recommend you use this air conditioner in conjunction
with another kind of heating appliance.
z Heat-pump air conditioners heat your entire room by
recirculating air throughout the room, with the result
that some time may be required after fi rst starting the air
conditioner until the room is heated.
*When Indoor and Outdoor Tempera-
ture are High
z When both indoor and outdoor temperatures are high
during use of the heating mode, the outdoor unit's fan
may stop at times.
Fan speed: AUTO
*Heating: The fan will operate at very low speed when the
temperature of the air issued from the indoor unit
is low.
Cooling: As the room temperature approaches that of the
set temperature, the fan speed becomes slower.
Fan: The fan runs at the low fan speed.
*Microcomputer-controlled Automatic
Defrosting
z When using the Heating mode under conditions of low
outdoor temperature and high humidity, frost may form
on the outdoor unit, resulting in reduced operating per-
formance.
In order to prevent this kind of reduced performance,
this unit is equipped with a Microcomputer-controlled
Automatic Defrosting function. During the defrost cycle,
the indoor fan will shutdown and
on the remote controller. It will take anywhere from 4 to
20 minutes before the air conditioner starts up again.
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Low Ambient Cooling

z When the outdoor temperature drops, the outdoor unit's
fans may switch to Low Speed, or one of the fans may
stop intermittently.
* Hot start
The indoor unit prevents cold drafts when heating opera-
tion begins.
The indoor unit fan will not operate until the heat exchanger
reaches the set temperature.
About ECONOMY OPERATION
At the maximum output, ECONOMY OPERATION is approxi-
mately 75% of normal air conditioner operation for cooling
and heating.
z If the room is not cooled (or heated) well during economy
operation, select normal operation.
z During the monitor period in the AUTO mode, the air
conditioner operation will not change to ECONOMY
OPERATION even if ECONOMY OPERATION is selected
by pressing the ECONOMY button.
Dual Remote Controllers (optional)
An additional remove controller can be added up to the
maximum of two remote controllers. Either remote controller
can control the air conditioner. However, the timer functions
cannot be used at the slave unit.

Group Control

One remote controller can control up to 16 air conditioners.
All of the air conditioners will be operated with the same
settings.
will be displayed
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