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

OPERATING TIPS

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

*Heating Performance

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 insufficient
heating performance is being produced, we recommend you
use this air conditioner in conjunction with another type of
heating appliance.
Heat-pump air conditioners heat your entire room by recircu-
lating air throughout the room, with the result that some time
may be required after first starting the air conditioner until the
room is heated.
* When Indoor and Outdoor Temperature
are High
When both indoor and outdoor temperatures are high during
use of the heating mode, the outdoor unit's fan may stop at
times to protect the unit.
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
When using the Heating mode under conditions of low out-
door temperature and high humidity, frost may form on the
outdoor unit, resulting in reduced operating performance.
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
troller. It will take anywhere from 4 to 15 minutes before the
air conditioner starts up again.
After heating operation stops, if frost forms on the outdoor
unit, the unit will start Automatic Defrosting operation.
At this time, the outdoor unit will automatically stop after
operating for a few minutes.
will be displayed on the remote con-

Low Ambient Cooling

When the outdoor temperature drops, the outdoor unit's fans
may switch to Low Speed, or one of the fans may stop inter-
mittently.
Dual Remote Controllers (optional)
An additional remote controller can be added up to the
maximum of 2 remote controllers. Either remote controller
can control the air conditioner. However, the timer functions
cannot be used at the secondary unit.
* Hot start
The indoor unit prevents cold drafts when heating operation
begins.
The indoor unit fan will not operate until the heat exchanger
reaches the set temperature.

Group Control

1 remote controller can control up to 16 air conditioners. All of
the air conditioners will be operated with the same settings.
Group control cannot be used when using it by the multi
type.
En-14