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7

OPERATION

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

* 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 oper-
ate).

During Fan mode:

The heat and cool functions of this unit
cannot operate at the same time.

About Mode Operation

AUTO:
COOLING MODEL

When the room temperature is 2 

°

C higher

than the set temperature, the mode will
switch between Cooling and Drying.

During the Drying mode operation, the
FAN setting should be switched to LOW
for a gently cooling effect during which
the fan may temporarily stop rotating.

If the mode automatically selected by the
unit is not satisfactory, see page 6 for in-
structions on changing the mode setting
(COOL, DRY, FAN).

AUTO (* AUTO CHANGEOVER):
HEAT & COOL MODEL (Reverse cycle)

When AUTO CHANGEOVER is selected, the air conditioner selects the appropri-
ate operation mode (Cooling or Heating) according to your room’s present tem-
perature.

When AUTO CHANGEOVER is first selected, the fan will operate at very low speed
for about one minute while the unit determines the current conditions of the
room and accordingly selects the proper operation mode.

When the air conditioner has adjusted your room’s temperature to near the ther-
mostat setting, it will begin monitor operation. In the monitor operation mode,
the fan will operate at low speed. If the room temperature subsequently changes,
the air conditioner will once again select the appropriate operation (Heating, Cool-
ing) to adjust the temperature to the value set in the thermostat. (The monitor
operation range is 

±

 2 

°

C relative to the thermostat setting.)

If the mode automatically selected by the unit is not satisfactory, see page 6 for
instructions on changing the mode setting (HEAT, COOL, DRY, FAN).

*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 set-
ting. This period of time is provided to allow the indoor unit to warm up before
begin 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 De-
frosting operation, the OPERATION indicator lamp (red) will flash, and the heat
operation will be interrupted.

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 detecting room humidity.

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

Fan:

Use to circulate the air throughout your room.

Cooling Operation

Dry Operation

°

C

Setting temperature

Thermostat control

Summary of Contents for ABT14RB

Page 1: ...ABT14RB ABT18RB ABT24AB ABT24RB Outdoor Unit AOT14RG AOT18RN AOT24AN AOT24RN ROOM AIR CONDITIONER FLOOR CONS OLE UNDER CEILING DUAL TYPE OPE R ATING MANUAL KEEP THIS OPERATION MANUAL FOR FUTURE REFERENCE FUJITSU GENERAL LIMITED ...

Page 2: ...o not direct air flow at fireplaces or heating apparatus Do not climb on or place objects on the air conditioner Do not hang objects from the indoor unit Do not set flower vases or water containers on top of air conditioners Do not expose the air conditioner directly to water Do not operate the air conditioner with wet hands Do not pull power supply cord Turn off power source when not using the un...

Page 3: ...AT 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 automatically turns off WIRELESS REMOTE CONTROL UNIT The WIRELESS REMOTE CONTRO...

Page 4: ...3 Fig 7 Fig 6 Instructions relating to heating are applicable only to HEAT COOL MODEL Reverse Cycle NAME OF PARTS Fig 5 Fig 1 Fig 3 Fig 2 Fig 4 G E F G E F ...

Page 5: ...dicator lamps will flash simultaneously To stop the test operation mode press the START STOP button to stop the air condi tioner V Remote Control Unit Display Fig 7 W Transmit Indicator X Clock Display Y Operating Mode Display Z Timer Mode Display Fan Speed Display Temperature Set Display Timer Set Indicator Temperature Set Indicator Fig 1 Indoor Unit 1 Operating Control Panel Fig 2 2 MANUAL AUTO ...

Page 6: ...de to open 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 TIME ADJUST button Use the tip of a ball point pen or other small object to press the button 2 Use the SET TIME buttons to adjust the clock to the current time button Press to advance the ...

Page 7: ... the entire display will reappear The thermostat setting should be considered a standard value and may differ somewhat from the actual room temperature To Set the Fan Speed Press the FAN CONTROL button Each time the button is pressed the fan speed changes in the following order AUTO HIGH MED LOW About three seconds later the entire display will reappear When set to AUTO Heating Fan operates so as ...

Page 8: ...air conditioner has adjusted your room s temperature to near the ther mostat setting it will begin monitor operation In the monitor operation mode the fan will operate at low speed If the room temperature subsequently changes the air conditioner will once again select the appropriate operation Heating Cool ing to adjust the temperature to the value set in the thermostat The monitor operation range...

Page 9: ... STOP button To Change Operating Conditions If you wish to change the operating conditions Mode Fan Speed Thermostat Setting after making the timer setting wait until the entire display reappears then press the appropriate buttons to change the operating condition desired To Cancel the Timer Use the TIMER button to select TIMER RESET The air conditioner will return to normal operation To Change th...

Page 10: ...ooling Dry operation When the SLEEP timer is set the thermostat setting is auto matically raised 1 C every sixty minutes When the thermo stat 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 2 C 3 C 4 C 30 minutes 1 C 1 hour 1 hour 30 minutes Set time Set tim...

Page 11: ...be adjusted during this pe riod Horizontal Air Direction Adjustment Press the AIR FLOW DIRECTION HORIZONTAL SET button Each time the button is pressed the air direction range will change as follows 1 2 3 4 5 The remote control unit s display does not change Use the air direction adjustments within the ranges shown above Fig 9 DANGER Never place fingers or foreign objects inside the outlet ports si...

Page 12: ...range 5 to 7 for long periods of time since water vapor may con dense near the outlet louvers and drops of water may drip from the air conditioner To select Horizontal airflow SWING Operation Press the AIR FLOW DIRECTION HORIZONTAL SWING button The SWING indicator lamp HORIZONTAL SWING orange will light In this mode the RIGHT LEFT air direction louvers will swing automatically to direct the airflo...

Page 13: ...he center of the intake grille Dust can be cleaned from the air filter either with a vacuum cleaner or by washing the filter in a solution of mild de tergent and warm water If you wash the filter be sure to allow it to dry thoroughly in a shady place before rein stalling If dirt is allowed to accumulate on the air filter air flow will be reduced lowering operating efficiency and increas ing noise ...

Page 14: ...st five seconds to display the current signal code initially set to 3 Press the buttons Fig 5 J to change the signal code between Match the code on the dis play to the air conditioner signal code 4 Press the MASTER CONTROL button again to return to the clock display The signal code will be changed SELECTING THE REMOTE CONTROL UNIT SIGNAL CODE To operate only one of multiple air conditioners If no ...

Page 15: ...ction of the front cover due to temperature changes During Heating operation a sizzling sound may be heard occa sional This sound is produced by the Automatic Defrosting op eration Some smell may be emitted from the indoor unit This smell is the result of room smells furniture tobacco etc which have been taken into the air conditioner During Cooling or Dry operation a thin mist may be seen emitted...

Page 16: ...ou feel that insuffi cient heating performance is being produced we recom mend you use this air conditioner in conjunction with another kind of heating appliance Heat pump air conditioners heat your entire room by recirculating air throughout the room with the result that some time may be required after first starting the air con ditioner until the room is heated When Indoor and Outdoor Temperatur...

Page 17: ... Interruption Cooling Dry Mode About 21 to 43 C About 21 to 43 C About 0 to 43 C About 18 C or more About 80 or less If the unit is used for long pe riods under high humidity conditions condensation may form on the surface of the indoor unit and drip onto the floor or other objects un derneath Heating Mode About 0 to 21 C About 30 C or less Outdoor temperature Indoor temperature Indoor humidity HE...

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