Fujitsu AST12 SERIES Operating Manual Download Page 10

9

To Use the ON timer or OFF timer

1

Press the START/STOP button (Fig. 5 

J

)

(if the unit is already operating, proceed to step 2).

The indoor unit’s OPERATION indicator lamp (red) (Fig. 3 

5

) will light.

2

Press the TIMER button (Fig. 5 

H

) 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) (Fig. 3 

6

) will light.

3

Use the SET TIME buttons (Fig. 5 

F

) to adjust the de-

sired 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 (Fig. 5 

J

)

(if the unit is already operating, proceed to step 2).

The indoor unit’s OPERATION indicator lamp (red) (Fig. 3 

5

) 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) (Fig. 3 

6

) will light.

3

Press the TIMER button (Fig. 5 

H

) to select the PRO-

GRAM 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.

About the PROGRAM timer

The PROGRAM timer allows you to integrate OFF timer and ON timer operations
in a single sequence. The sequence 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 nearest to the current time.
The order of operation is indicated 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 auto-
matically stop (OFF timer) after you go to sleep, then start (ON timer) automati-
cally in the morning before you arise.

TIMER OPERATION

s

s

s

t

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.

Summary of Contents for AST12 SERIES

Page 1: ...KEEP THIS MANUAL FOR FUTURE REFERENCE FUJITSU GENERAL LIMITED P N9373538035 Indoor Unit AST7 SERIES AST9 SERIES AST12 SERIES AIR CONDITIONER WALL MOUNTED TYPE OPERATING MANUAL ...

Page 2: ...t hands Do not pull power supply cord Turn off power source when not using the unit for extended periods 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 from the air conditioner Do not use in applications involving the storage of foods plants or animals precision equipment or art works Connect...

Page 3: ...the set time is reached the unit automatically turns off COOLING MODEL When the SLEEP timer button is pressed during Cooling 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 CONTROL UNIT allows convenient control of air conditioner operation SWING OPERATION T...

Page 4: ... tion has been drawn to show all possible indicators in actual operation however the display will only show those indicators appropriate to the current op eration Fig 6 Instructions relating to heating are applicable only to HEAT COOL MODEL Reverse Cycle HEAT COOL MODEL REVERSE CYCLE COOLING MODEL A 0 C 3 1 4 5 6 8 7 OPERATION TIMER SWING B 9 2 ...

Page 5: ...ss the START STOP button to stop the air condi tioner P Remote Control Unit Display Fig 7 Q Transmit Indicator R Clock Display S Operating Mode Display T Timer Mode Display U Fan Speed Display V Temperature Set Display W Timer Set Indicator X Temperature Set Indicator Fig 1 Indoor Unit 1 Operating Control Panel Fig 2 2 MANUAL AUTO button 3 Remote Control Signal Receiver 4 Indicator Lamps Fig 3 5 O...

Page 6: ...7 meters When a signal 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 PREPARATION CAUTION Take care to prevent infants from accidentally swallowing batteries When not using the remote control unit for an extended period remove the batteries to avoid possible leakage and damage to th...

Page 7: ...g the FAN mode the temperature will not appear on the remote control unit s display Thermostat setting range COOLING MODEL AUTO Standard temperature setting 2 C Cooling Dry 18 to 30 C FAN 17 to 30 C During use of FAN mode if the thermostat is set at 17 C or lower the display will show and the fan will operate continuously regardless of the room tempera ture About three seconds later the entire dis...

Page 8: ... The OPERATION indicator lamp red Fig 3 5 will go out About Mode Operation AUTO AUTO CHANGEOVER HEAT COOL MODEL REVERSE CYCLE When AUTO CHANGEOVER operation is selected the air conditioner selects the appropriate operation mode Cooling or Heating in response to your room s temperature When AUTO CHANGEOVER operation first selected the fan will operate at very low speed for about one minute during w...

Page 9: ...ettings are selected automatically when operation begins When automatic operation is initiated the fan will run at very low speed for about one minute while the unit detects and selects the proper operating mode Once the operating mode has been set the mode will not change even if the room temperature changes If the START STOP button is pressed to recommence operation within two hours after stoppi...

Page 10: ...mer and ON timer operations in a single sequence The sequence 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 nearest to the current time The order of operation is indicated by the arrow in the Remote Control Unit s display OFF ON or OFF ON One example of PROGRAM timer use m...

Page 11: ...al operation To Stop the Air Conditioner During Timer Operation Press the START STOP button About the SLEEP timer To prevent excessive warming or cooling during sleep the SLEEP timer function automatically modifies the thermostat set ting in accordance with the time setting When the set time has elapsed the air conditioner completely stops During Heating operation When the SLEEP timer is set the t...

Page 12: ... let louvers and drops of water may drip from the air conditioner During the Cooling and Dry modes if the Air Flow Direction Louvers are left in the heat ing range for more than 30 minutes they will automatically return to posi tion 3 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 Vertica...

Page 13: ... modes if SWING Operation is con tinued at the lowest downward range for more than 30 minutes the unit will automatically switch the swing range to the horizontal flow range to prevent the condensation of moisture on the outlet The SWING operation may stop temporarily when the air conditioner s fan is not operating or when operating at very low speeds MANUAL AUTO OPERATION Use the MANUAL AUTO oper...

Page 14: ... remove the air filter Lift up the air filter s handle disconnect the two lower tabs and pull out 2 Remove dust with a vacuum cleaner or by washing After washing allow to dry thoroughly in a shaded place 3 Replace the air filter and close the intake grille 1 Align the sides of the air filter with the panel and push in fully making sure the two lower tabs are returned properly to their holes in the...

Page 15: ... the air cleaning filter frame Take care that the air cleaning filter does not project be yond the frame 3 Engage the four fixing locations at the top and bot tom of the air cleaning filter frame with the hooks of the air filter 2 1 1 2 1 2 When air cleaning filters are used the effect will increased by setting the fan speed to High Intake Grille Intake Grille Mounting shaft Bearing Knob Mounting ...

Page 16: ...air cleaning filters avoid places with high temperatures and high humidity and use the filters as soon as possible after the package has been opened The air cleaning effect decreases when the filters are left in the opened package POLYPHENOL CATECHIN AIR CLEANING FILTER white filter The Air Cleaning Filters are disposable filters They can not be washed and reused For storage of the Air Cleaning Fi...

Page 17: ...rosting 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 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 He...

Page 18: ...s 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 Temperatures are High When both indoor and outdoor temperatures are high dur ing use of the heating ...

Page 19: ...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 20: ...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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