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To Use the ON timer or OFF timer

1

Press the START/STOP button.
(if the unit is already operating, proceed to step 2).

The indoor unit’s OPERATION indicator lamp (red) will light.

2

Press the TIMER button to select the OFF timer or ON
timer operation.

Each time the button is pressed the timer function changes in the follow-
ing order:

RESET

OFF

ON

PROGRAM(OFF 

 ON, OFF 

 ON)

The indoor unit’s TIMER indicator lamp (green) will light.

3

Use the SET TIME buttons to adjust the desired OFF
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 (red) will light.

2

Set the desired times for OFF timer and ON timer.

See the section “To Use the ON timer or OFF timer” to set the desired
mode and times.
About three seconds later, the entire display will reappear.
The indoor unit’s TIMER indicator lamp (green) will light.

3

Press the TIMER button to select the PROGRAM timer
operation (either OFF 

 ON or OFF 

 ON will display).

The display will alternately show “OFF timer” and “ON timer”, then change
to show the time setting for the operation to occur first.

The PROGRAM timer will begin operation. (If the ON timer has been
selected to operate first, the unit will stop operating at this point.)

About five seconds later, the entire display will reappear.

TIMER OPERATION

s

s

s

t

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

Before using the timer function, be sure that the Remote Control Unit is set to the correct current time (See page 5).

To Cancel the Timer

Use the TIMER button to select “TIMER
RESET”.
The air conditioner will return to normal
operation.

To Change the Timer Settings

Perform steps 

2

 and 

3

.

To Stop Air Conditioner Operation
while the Timer is Operating

Press the START/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 the Timer Settings

1. Follow the instructions given in the section

“To Use the ON Timer or OFF Timer” to se-
lect the timer setting you wish to change.

2. Press the TIMER button to select either

OFF 

 ON or OFF 

 ON.

To Stop Air Conditioner Operation
while the Timer is Operating

Press the START/STOP button.

To Change Operating Conditions

If you wish to change 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 operat-
ing condition desired.

About the PROGRAM timer

The PROGRAM timer allows you to integrate OFF timer
and ON timer operations in a single sequence. The se-
quence can involve one transition from OFF timer to ON
timer, or from ON timer to OFF timer, within a twenty-
four hour period.

The first timer function to operate will be the one set near-
est to the current time. The order of operation is indi-
cated by the arrow in the remote control unit’s display
(OFF 

 ON, or OFF 

 ON).

One example of PROGRAM timer use might be to have
the air conditioner automatically stop (OFF timer) after
you go to sleep, then start (ON timer) automatically in
the morning before you rise.

About the ON timer

The timer function is designed to bring your room to a
comfortable temperature by the set time; as a result, the
unit automatically begins operation before the set time
so that the room reaches the desired temperature by the
time set on the timer.

The hotter it is in summer, or the colder it is in winter, the
earlier that operation will begin.

* During Heating Operation ..... from 45 to 10 minutes be-

fore set time.

During Cooling/Dry Operation .. from 20 to 10 minutes be-

fore set time.

During Fan Operation ............ at the set time.

Summary of Contents for AOT24LMADL

Page 1: ...P N9373553021 KEEP THIS MANUAL FOR FUTURE REFERENCE FUJITSU GENERAL LIMITED OPERATING MANUAL ROOM AIR CONDITIONER Indoor Unit AST18 SERIES AST24 SERIES AST30 SERIES ...

Page 2: ... source when not using the unit for extended periods Always turn off the electrical breaker or disconnect the power supply plug whenever cleaning the air conditioner or the air filter Connection valves become hot during Heating handle with care Check the condition of the installation stand for damage Do not place animals or plants in the direct path of the air flow Do not drink the water drained f...

Page 3: ...hed the unit automatically turns off WIRELESS REMOTE CONTROL UNIT The WIRELESS REMOTE CONTROL UNIT allows convenient control of air conditioner operation OMNI DIRECTIONAL AIR FLOW SWING OPERATION Three dimensional control over air direction swing is possi ble through dual use of both an UP DOWN air direction swing and RIGHT LEFT air direction swing Since UP DOWN air direction flaps operate automat...

Page 4: ...3 A 0 1 3 9 B C 7 6 5 4 8 2 D SWING SWING TIMER OPERATION Fig 2 Fig 3 Fig 4 NAME OF PARTS Fig 1 Fig 5 Fig 7 Fig 6 HEAT COOL MODEL REVERSE CYCLE COOLING MODEL ...

Page 5: ...Transmitter I TIMER button J FAN CONTROL button K START STOP button L AIR FLOW DIRECTION VERTICAL SET button M AIR FLOW DIRECTION VERTICAL SWING button N AIR FLOW DIRECTION HORIZONTAL SET button O AIR FLOW DIRECTION HORIZONTAL SWING button P TIME ADJUST button Q ACL button Rear side Fig 6 R TEST RUN Touch the two metal contacts with a me tallic object to send the signal to perform a test run Perfo...

Page 6: ...is properly received by the air conditioner a beeping sound will be heard If no beep is heard press the remote control unit button again Remote Control Unit Holder 3 To remove the Remote Control Unit when use at hand 1 Mount the Holder 2 Set the Remote Control Unit Screws Insert Press in Slide up Pull out CAUTION Take care to prevent infants from accidentally swallowing batteries When not using th...

Page 7: ...emperature during the FAN mode the temperature will not appear on the remote control unit s display Thermostat setting range COOLING MODEL AUTO 18 to 30 C Cooling Dry 18 to 30 C The thermostat cannot be used to set room temperature during the FAN mode the temperature will not appear on the remote control unit s display About three seconds later the entire display will reappear The thermostat setti...

Page 8: ... The fan will operate at very low setting during Monitor operation and at the start of the Heating mode Fan COOLING MODEL The fan alternately turns on and off when on the fan runs at the low fan speed The fan will operate at a very low setting during Monitor operation When set to Quiet SUPER QUIET operation begins The indoor unit s airflow will be reduced for qui eter operation SUPER QUIET operati...

Page 9: ...OL 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 beginning full operation When the room temperature is very low frost may form on the outside unit and its performance ...

Page 10: ...peration while the Timer is Operating Press the START 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 con...

Page 11: ...tat 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 time 1 hour 1 C 2 C Instructions relating to heating are applic...

Page 12: ...g 9 ADJUSTING THE DIRECTION OF AIR CIRCULATION Instructions relating to heating are applicable only to HEAT COOL MODEL Reverse Cycle Vertical up down direction of airflow is adjusted by pressing the remote control unit s AIR FLOW DIRECTION VERTICAL SET button Horizontal right left direction of airflow is adjusted by pressing the remote control unit s AIR FLOW DIRECTION HORIZONTAL SET button DANGER...

Page 13: ...he air UP DOWN direction flaps in the range 4 to 6 for long periods of time since water vapor may condense near the outlet port 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 will light In this mode the RIGHT LEFT air direction louvers will swing automat...

Page 14: ...he intake grille fully to remove 2 Clean with water Remove dust with a vacuum cleaner wipe the unit with warm water then dry with a clean soft cloth 3 Replace the intake grille 1 Holding the intake grille horizontally fasten the two upper hooks on the unit 2 Press the intake grille down at the lower sides to close Intake Grille Air filter handle Hooks two places Intake Grille Hooks two places Befo...

Page 15: ...grille and remove the air filters 2 Replace them by two new air cleaning filters 1 Remove the old air cleaning filters in reverse order of their installation 2 Install in the same way as for installation of the air cleaning filter set 3 Install the two air filters and close the intake grille In regard to the Air cleaning filters Air purifying filter green filter Depending on the size of the room a...

Page 16: ...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 from the indoor unit This results from the sudden Cooling of room air by the air emitted from the air conditioner resulting in condensation and misting During Heating operation the outd...

Page 17: ...t the room with the result that some time may be required after first starting the air con ditioner until the room is heated Microcomputer controlled Automatic Defrosting When using the Heating mode under conditions of low out door air temperature high humidity frost may form on the outdoor unit resulting in reduced operating performance In order to prevent this kind of reduced performance this un...

Page 18: ...aneously 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 us...

Page 19: ...dinary dwellings When the outdoor temperature drops the outdoor unit s fans may switch to Low Speed If the unit is used for long periods under high humidity conditions condensation may form on the surface of the indoor unit and drip onto the floor or other objects underneath About 80 or more OPERATING TIPS Humidity About 80 or less If the unit is used for long peri ods under high humidity condi ti...

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