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En-8

OPERATION

Setting temperature

Thermostat control

Dry Operation

Cooling 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 in the Fan mode.

About Mode Operation

AUTO:
COOLING MODEL

When the room temperature is 4 

°

F

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 7 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 

±

°

F relative to the thermostat setting.)

If the mode automatically selected by the unit is not satisfactory, see page 7 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 light (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.

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

Fan:

Use to circulate the air throughout your room.

°

F

Summary of Contents for ABU22

Page 1: ...KEEP THIS OPERATION MANUAL FOR FUTURE REFERENCE OPERATING MANUAL P N9359944010 COOLING MODEL ROOM AIR CONDITIONER FLOOR CONSOLE UNDER CEILING DUAL TYPE COOLING MODEL Indoor Unit ABU22 Outdoor Unit AOU22 ...

Page 2: ...low 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 Turn off power source when not using the unit for extended periods Check the condition of t...

Page 3: ...EAT 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 CONTR...

Page 4: ...IMER SET TIME SET TEMP MASTER CONTROL FAN CONTROL START STOP SET ENERGY SAVE TIME ADJUST TEST RUN ACL SET SWING SWING CLOCK OFF AM PM ON TIMER RESET TIMER SLEEP H M OFF AUTO COOL DRY FAN ENERGY SAVE HEAT ON A AUTO HIGH MED LOW F I J K L M U X Y Z V W N O P Q R S G H T CLOCK COOL AUTO Fig 7 Fig 6 Fig 1 Fig 3 Fig 4 Fig 2 ...

Page 5: ...imultaneously To stop the test operation mode either press the TEST RUN button once again or press the START STOP button to stop the air conditioner S ACL Button T Remote Control Unit Display Fig 7 U Transmit Indicator V Clock Display W Operating Mode Display X Timer Mode Display Y Fan Speed Display Z Temperature Set Display Timer Set Indicator Temperature Set Indicator Fig 1 Indoor Unit 1 Operati...

Page 6: ...p will be heard If no beep is heard press the remote control unit button again Remote Control Unit Holder For Hand Held use Screws 1 Mount the Holder For Wall Mount use 1 Mount the Holder Screws 2 Set the Remote Control Unit Insert Slide up 3 To remove the Remote Control Unit Insert 2 Set the Remote Control Unit 3 Attach the unit to the holder as shown Screw Slide CAUTION Take care to prevent infa...

Page 7: ...tandard 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 to optimally circulate warm air However the fan will operate at very low speed wh...

Page 8: ... 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 te...

Page 9: ...play 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 c c c d SLEEP TIMER SET TIME SET TEMP MASTER CONTROL FAN CONTROL TIMER ON SLEEP TIMER SET...

Page 10: ...tton Both the indoor unit s OPERATION indicator light red and the TIMER indicator light green will turn on To Change the Timer Settings Press the SLEEP button once again and set the time using the SET TIME buttons Set the time while the Timer Mode 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 secon...

Page 11: ... 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 since the internal fan oper ates at high speed and could c...

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 light HORIZONTAL SWING orange will turn on In this mode the RIGHT LEFT air direction louvers will swing automatically to direct the ai...

Page 13: ... setting ENERGY SAVE setting During Cooling Dry operation The thermostat temperature setting increases by 2 F as soon as the ENERGY SAVE button is pressed and then increases by another 2 F after one hour has passed In this manner energy is saved by continuing to cool or dry at a thermostat temperature of 4 F above the setting ENERGY SAVE setting To Cancel the ENERGY SAVE Press the ENERGY SAVE butt...

Page 14: ...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 15: ... temperature changes During Heating operation a swoosh sound may be heard occa sionally This sound is produced by the Automatic Defrosting op eration Occasionally an odor may be emitted from the indoor unit This may be the result of room odors 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 Th...

Page 16: ...outlet port blocked Did you adjust the room temperature settings thermostat cor rectly Is there a window or door open In the case of Cooling operation is a window allowing bright sun light to enter Close the curtains In the case of Cooling operation are there heating apparatus and computers inside the room or are there too many people in the room Are the remote control unit s batteries dead Are th...

Page 17: ... In Event of Power Interruption Cooling Dry Mode About 70 to 115 F About 70 to 115 F About 64 F 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 32 to 75 F About 88 F or less Outdoor temperature Indoor temperature Indoor humidi...

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