Fujitsu AUT Series Operating Manual Download Page 16

En-15

About Mode Operation

During Heating mode:

Set the thermostat to a temperature set-
ting that is higher than the current room
temperature. The Heating mode will not
operate if the thermostat is set lower than
the actual room temperature.

During Cooling/Dry mode:

Set the thermostat to a temperature set-
ting that is lower than the current room
temperature. The Cooling and Dry modes
will not operate if the thermostat is set
higher than the actual room temperature
(in Cooling mode, the fan alone will ope-
rate).

During Fan mode:

You can not use the unit to heat and cool
your room.

Heating:

Use to warm your room.

When Heating mode is selected, the air conditioner will operate at very
low fan speed for about 3 to 5 minutes, after which it will switch to the
selected fan setting. This period of time is provided to allow the indoor
unit to warm up before beginning full operation.

When the room temperature is very low, frost may form on the outside
unit, and its performance may be reduced. In order to remove such
frost, the unit will automatically enter the defrost cycle from time to
time. During Automatic Defrosting operation, the OPERATION indica-
tor Lamp will flash, and the heat operation will be interrupted.

After the start of heating operation, it takes sometime before the room
gets warmer.

Cooling:

Use to cool your room.

Dry:

Use for gently cooling while dehumidifying your room.

You cannot heat the room during Dry mode.

During Dry mode, the unit will operate at low speed; in order to adjust
room humidity, the indoor unit’s fan may stop from time to time. Also,
the fan may operate at very low speed when adjusting room humidity.

The fan speed cannot be changed manually when Dry mode has been
selected.

Fan:

Use to circulate the air throughout your room.

OPERATING TIPS

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)
operating under the new timer setting. In this event, the
TIMER indicator lamp will flash.

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.

AUTO Restart

In Event of Power Interruption

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.

Instructions relating to inverter (

) are applicable only to “INVERTER MODEL”.

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
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

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

Simultaneous Use of Multiple Units

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.

Summary of Contents for AUT Series

Page 1: ...OPERATING MANUAL P N9374379309 KEEP THIS MANUAL FOR FUTURE REFERENCE FUJITSU GENERAL LIMITED AIR CONDITIONER CASSETTE TYPE AUT Series ...

Page 2: ...not drink the water drained from the air conditioner Do not use in applications involving the storage of foods plants or animals precision equipment or art works Do not apply any heavy pressure to radiator fins Operate only with air filters installed Do not block or cover the intake grille and outlet port Ensure that any electronic equipment is at least one metre away from either the in door or ou...

Page 3: ...ion When the set time is reached the unit automatically turns off HEAT COOL MODEL REVERSE CYCLE When the SLEEP timer button is pressed during Heating mode the air conditioner s thermostat setting is gradu ally lowered during the period of operation during Cool ing or Dry mode the thermostat setting is gradually raised during the period of operation When the set time is reached the unit automatical...

Page 4: ...ll cause the air condition er s thermostat function to operate incorrectly If this button is pressed during normal opera tion the unit will switch to test operation mode and the Indoor Unit s OPERATION In dicator Lamp and TIMER Indicator Lamp will begin to flash simultaneously To stop the test operation mode press the START STOP button to stop the air condi tioner F Signal Transmitter G Temperatur...

Page 5: ...it Slide in the direction of the arrow while pressing the mark 2 Insert batteries Be sure to align the battery polarities correctly 3 Close the battery compartment lid Set the Current time 1 Press the CLOCK ADJUST button Use the tip of a ball point pen or other small object to press the button 2 Use the TIMER SET buttons to adjust the clock to the current time button Press to advance the time butt...

Page 6: ...utton Each time the button is pressed the fan speed changes in the following order AUTO HIGH MED LOW QUIET About three seconds later the entire display will reappear When set to AUTO Heating Fan operates so as to optimally circulate warmed air However 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...

Page 7: ...r conditioner will operate at very low fan speed for about 3 to 5 minutes after which it will switch to the selected fan setting This period of time is provided to allow the indoor unit to warm up before beginning full operation When the room temperature is very low frost may form on the outside unit and its performance may be reduced In order to remove such frost the unit will automatically enter...

Page 8: ...time or ON time Set the time while the time display is flashing the flashing will continue for about five seconds button Press to advance the time button Press to reverse the time About five seconds later the entire display will reappear To Use the Program timer 1 Press the START STOP button if the unit is already operating proceed to step 2 The indoor unit s OPERATION Indicator Lamp will light 2 ...

Page 9: ...mostat setting is auto matically raised 1 C every 1 hour When the thermostat has been raised a total of 2 C the thermostat setting at that time is maintained until the set time has elapsed at which time the air conditioner automatically turns off SLEEP timer setting During Heating operation When the SLEEP timer is set the thermostat setting is automatically lowered 1 C every thirty minutes When th...

Page 10: ...stop op eration and restart The louvers should begin to operate properly again When used in a room with infants chil dren elderly or sick persons the air direction and room temperature should be considered carefully when making settings Horizontal Air Direction Adjustment SWING OPERATION Left right and up down left right swing operation cannot be performed on models that are not equipped with hori...

Page 11: ...e cooling mode dehumidification is improved This function is especially convenient when you want to remove the humidity in the room without significantly lowering the room temperature During ECONOMY operation the thermostat setting automatically changes according to the temperature to avoid Unneces sary cooling and heating for the most economical operation If the room is not cooled or heated well ...

Page 12: ... a period of one month or more be sure to allow the inner parts of the unit to dry thoroughly in advance by operating the unit in fan mode for half a day Intake Grille Air Filter Filter Hook 3 Clean the air filters Remove the dust from the air filters by vacuuming or washing them After washing allow the air filters to dry thoroughly in an area protected from sunlight 4 Re attach the air filters to...

Page 13: ...ct the power supply plug ro turn off your circuit breaker to ensure that power is completely off Before requesting service perform the following checks Symptom Doesn t operate immedi ately Noise is heard Problem If the unit is stopped and then immediately started again the com pressor will not operate for about 3 minutes in order to prevent fuse blowouts Whenever the power supply plug is disconnec...

Page 14: ... the Automatic Defrosting mode operates During the Automatic Defrosting operation the OPERA TION indicator lamp will flash The fan may operate at very low speed during Dry operation or when the unit is monitoring the room s temperature During QUIET operation the fan will operate at very low speed In the monitor AUTO operation the fan will operate at very low speed During Heating operation water ma...

Page 15: ...or 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 HEAT COOL MODEL Reverse Cycle Auto changeover function When AUTO CHANGEOVER is selected the air condi...

Page 16: ...her 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 AUTO Restart In Event of Power Interruption Multi type Air conditioner This indoor unit can be connected to a multi type outdoor unit ...

Page 17: ...oor 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 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 OPERATING TIPS TEMPERATURE AND HUMIDITY RANGE Cooling Dry Operation Heating Operation Outdoor tempera...

Page 18: ......

Page 19: ......

Page 20: ......

Reviews: