Friedrich MW24Y3F User Manual

INVERTER

Friedrich Air Conditioning Co.

4200 N. Pan Am

San Antonio, Texas 78218 USA

Tel. (210) 357-4400 Fax (210) 357-4490

Visit us at www. friedrich. com

HEAT & COOL MODEL (REVERSE CYCLE)

ROOM AIR CONDITIONER

WALL MOUNTED TYPE

Indoor Unit

MW24Y3F

OPERATING MANUAL

MODE D’EMPLOI

MANUAL DE FUNCIONAMIENTO

English

Outdoor Unit

MR24Y3F

KEEP THIS OPERATION MANUAL FOR FUTURE REFERENCE

Français

Español

P/N9315345042-01

Fig. 1

Fig. 5

Fig. 6

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N W

B C

P Q R

U O V

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Fig. 2

Fig. 3

Fig. 4

[

a b

Fig. 7

To facilitate explanation, the accompanying illustration has been drawn to show all possible indicators; in actral operation, however, the display will only show those indicators appropriate to the current operation.

MANUAL

AUTO

OPERATION

TIMER

COIL DRY

5 6 7

]

CONTENTS

SAFETY PRECAUTIONS .................................... En-1

FEATURES AND FUNCTIONS ........................... En-2

NAME OF PARTS ................................................ En-3

PREPARATION .................................................... En-4

OPERATION ........................................................ En-5

TIMER OPERATION ............................................ En-7

SLEEP TIMER OPERATION ................................ En-8

MANUAL AUTO OPERATION ............................ En-8

SAFETY PRECAUTIONS

DANGER!

CAUTION!

● Do not attempt to install this air conditioner by yourself.

● This unit contains no user-serviceable parts. Always consult authorized service per-

sonnel for repairs.

● When moving, consult authorized service personnel for disconnection and installation of the unit.

● Do not become excessively chilled by staying for lengthy periods in the direct cooling airflow.

● Do not insert fingers or objects into the outlet port or intake grilles.

● Do not start and stop air conditioner operation by disconnecting the power supply

cord and so on.

● Take care not to damage the power supply cord.

● In the event of a malfunction (burning smell, etc.), immediately stop operation, dis-

connect the power supply plug, and consult authorized service personnel.

● Provide occasional ventilation during use.

● Do 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 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.

● Connection valves become hot during Heating; handle with care.

● 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 outdoor units.

● Avoid installing the air conditioner near a fireplace or other heating apparatus.

● When installing the indoor and outdoor unit, take precautions to prevent access to

infants.

● Do not use inflammable gases near the air conditioner.

ADJUSTING THE DIRECTION OF

AIR CIRCULATION .............................................. En-9

SWING OPERATION......................................... En-10

COIL DRY OPERATION ..................................... En-10

CLEANING AND CARE ..................................... En-11

TROUBLESHOOTING ....................................... En-12

OPERATING TIPS.............................................. En-13

TYPE HEAT & COOL MODEL TYPE MODÈLE RÉVERSIBLE TIPO MODELO DE REFRIGERACIÓN Y CAlEFACCÓN

MODEL MODÈLE MODELO

INDOOR UNIT UNIDAD INTERIOR UNITÉ INTÉRIEURE

OUTDOOR UNIT UNIDAD EXTERIOR UNITÉ EXTÉRIEURE

MW24Y3F

MR24Y3F

SPECIFICATIONS

POWER SUPPLY ........................................................................................................................................................................................................................................................ 208/230 V~60 Hz

COOLING

CAPACITY ..................................................................................................................................................................................................................................................................

INPUT POWER ...................................................................................................................................................................................................................................................................

CURRENT ..............................................................................................................................................................................................................................................................................10.1 A

HEATING

24,200 BTU/h

2.31 kW

27,600 BTU/h

2.47 kW

FICHE TECHNIQUE

ALIMENTATION......................................................................................................................................................................................................................................................... 208/230 V~60 Hz

REFROIDISSEMENT

PUISSANCE FRIGORIFIQUE .....................................................................................................................................................................................................................................

PUISSANCE ABSORBÉE ....................................................................................................................................................................................................................................................

INTENSITÉ ............................................................................................................................................................................................................................................................................ 10,1 A

CHAUFFAGE

INTENSITE ............................................................................................................................................................................................................................................................................ 10,8 A

24,200 BTU/h

2,31

27,600 BTU/h

2,47 kW

ESPECIFICACIONES

ALIMENTACIÓN ........................................................................................................................................................................................................................................................ 208/230 V~60 Hz

REFRIGERACIÓN

CAPACIDAD ...............................................................................................................................................................................................................................................................

ENTRADA DE ALIMENTACIÓN ........................................................................................................................................................................................................................................

CORRIENTE ...........................................................................................................................................................................................................................................................................10

CALEFACCIÓN

24,200 BTU/h

2,31

kW ,

1 A

27,600 BTU/h

47 kW

En-1

FEATURES AND FUNCTIONS

INVERTER

At the start of operation, a large power is used to bring the room quickly to the desired temperature. Afterwards, the unit automatically switches to a low power setting for economic and comfortable operation.

COIL DRY OPERATION

The Indoor unit can be dried by pressing the COIL DRY button on the Remote Control Unit so as to avoid going moldy and restrain the breed of bacterium.

AUTO CHANGEOVER

The operation mode (cooling, dry, heating) is switched automatically to maintain the set temperature, and the temperature is kept constant at all times.

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.

OMNI-DIRECTIONAL AIR FLOW (SWING OPERATION)

Three-dimensional control over air direction swing is possible through dual use of both an UP/DOWN air direction swing and RIGHT/LEFT air direction swing. Since UP/DOWN air direction flaps operate automatically according to the operating mode of the unit, it is possible to set air direction based on the operating mode.

REMOVABLE OPEN PANEL

The indoor unit’s Open Panel can be removed for easy cleaning and maintenance.

MILDEW-RESISTANT FILTER

The AIR FILTER has been treated to resist mildew growth, thus allowing cleaner use and easier care.

SUPER QUIET OPERATION

When the FAN CONTROL button is used to select QUIET, the unit begins super-quiet operation; the indoor unit’s airflow is reduced to produce quieter operation.

SLEEP TIMER

When the SLEEP button is pressed during Heating mode, the air conditioner’s thermostat setting is gradually lowered during the period of operation; 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.

HORIZONTAL AIRFLOW: COOLING/ DOWNWARD AIRFLOW: HEATING

For cooling, use horizontal airflow so the cool air does not blow directly on the occupants in the room. For heating, use downward airflow to send powerful, warm air to the floor and create a comfortable environment.

En-2

NAME OF PARTS

Fig. 1 Indoor Unit

1 Operating Control Panel (Fig. 2) 2 MANUAL AUTO button

●

When kept on pressing the MANUAL AUTO button for more than 10 seconds, the forced cooling operation will start.

● The forced cooling operation is used at the

time of installation. Only for authorized service personnel's use.

● When the forced cooling operation starts

by any chance, press the START/STOP button to stop the operation.

3 Indicator (Fig. 3) 4 Remote Control Signal Receiver 5 OPERATION Indicator Lamp (red) 6 TIMER Indicator Lamp (green)

●

If the TIMER indicator lamp flashes when the timer is operating, it indicates that a fault has occurred with the timer setting (See Page 13 Auto Restart).

7 COIL DRY Indicator Lamp (orange)

8 Intake Grille (Fig. 4) 9 Front Panel 0 Air Filter A Air Flow Direction Louver B Power Diffuser C Right-Left Louver

(behind Air Flow Direction Louver)

D Drain Hose

Fig. 5 Outdoor Unit

E Intake Port F Outlet Port G Pipe Unit H Drain port (bottom)

Fig. 6 Remote Control Unit

I SLEEP button J MASTER CONTROL button K SET TEMP. button (

/ )

L COIL DRY button M Signal Transmitter N TIMER MODE button O TIMER SET (

/ ) button

P FAN CONTROL button Q START/STOP button R SET button (Vertical) S SET button (Horizontal) T SWING button U RESET button V TEST RUN button

● This button is used when installing the conditioner, and should not be used under normal conditions, as it will cause the air conditioner’s thermostat function to operate incorrectly.

● If this button is pressed during normal operation, the unit will switch to test operation mode, and the Indoor Unit’s OPERATION Indicator 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 conditioner.

W CLOCK ADJUST button X Remote Control Unit Display (Fig. 7) Y Transmit Indicator Z Clock Display [ Operating Mode Display \ Timer Mode Display ] Fan Speed Display ` Temperature SET Display a COIL DRY Display b SLEEP Display c SWING Display

● Refer to the folded out page on the cover.

En-3

PREPARATION

Load Batteries (AAA/R03/LR03

××

× 2)

××

Press and slide the battery compartment lid on the re-

verse side to open it.

Slide in the direction of the arrow while pressing the mark.

Insert batteries.

Be sure to align the battery polarities ( ) correctly.

Close the battery compartment lid.

Set the Current time

Press the CLOCK ADJUST button (Fig. 6 W).

Use the tip of a ball-point pen or other small object to press the button.

Use the TIMER SET ( / ) buttons (Fig. 6 O) to

adjust the clock to the current time.

button: Press to advance the time. button: Press to reverse the time.

(Each time the buttons are pressed, the time will be advanced/reversed in one-minute increments; hold the buttons depressed to change the time quickly in ten-minute increments.)

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 the unit.

● If leaking battery fluid comes in contact with your skin, eyes, or mouth, immediately wash with copious amounts of water, and consult your physician.

● Dead batteries should be removed immediately and disposed of properly, either in a battery collection receptacle or to the appropriate authority.

● Do not attempt to recharge dry batteries.

Never mix new and used batteries, or batteries of different types. Batteries should last about one year under normal use. If the Remote Control Unit’s operating range becomes appreciably reduced, replace the batteries and press the RESET button with the tip of a ballpoint pen or other small object.

Press the CLOCK ADJUST button (Fig. 6 W) again.

This completes the time setting and starts the clock.

To Use the Remote Control Unit

● The Remote Control Unit must be pointed at signal receiver (Fig. 1 4) to operate correctly.

● Operating Range: About 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

Insert

Press in

Screws

1 Mount the Holder. 2 Set the Remote Control

Unit.

Slide up

Pull out

3 To remove the Remote

Control Unit (when use at hand).

En-4

OPERATION

To Select Mode Operation

Press the START/STOP button (Fig.6 Q).

The indoor unit’s OPERATION Indicator Lamp (red) (Fig. 3 5) will light. The air conditioner will start operating.

Press the MASTER CONTROL button (Fig.6 J) to se-

lect the desired mode.

Each time the button is pressed, the mode will change in the following order.

sss

AUTO COOL DRY

About three seconds later, the entire display will reappear.

HEAT FAN

To Set the Thermostat

Press the SET TEMP. button (Fig. 6 K).

button: Press to raise the thermostat setting. button: Press to lower the thermostat setting.

●Thermostat setting range:

AUTO .................................. 64-88 °F

Heating ............................... 60-88 °F

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 setting should be considered a standard value, and may differ somewhat from the actual room temperature.

Cooling/Dry ........................ 64-88 °F

To Set the Fan Speed

Press the FAN CONTROL button (Fig. 6 P).

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 that of the thermostat setting,

the fan speed becomes slower.

Fan : The fan runs at the low fan speed.

The fan will operate at a very low setting during Monitor operation and at the start of the Heating mode.

ssss

Example: When set to COOL.

Example: When set to 80°F.

Example: When set to AUTO.

SUPER QUIET Operation

When set to Quiet:

SUPER QUIET operation begins. The indoor unit’s airflow will be reduced for quieter operation.

● SUPER QUIET operation cannot be used during Dry mode. (The same is true when dry mode is selected during AUTO mode operation.)

● During Super Quiet operation, Heating and Cooling performance will be reduced somewhat. If the room does not warm up/ cool down when using SUPER QUIET Operation, please adjust the air conditioner’s Fan Speed.

En-5

To Stop Operation

Press the START/STOP button (Fig. 6 Q).

The OPERATION Indicator Lamp (red) (Fig. 3 5) will go out.

About AUTO CHANGEOVER Operation

AUTO: ● When AUTO CHANGEOVER operation first selected, the fan will oper-

ate at very low speed for about one minute, during which time the unit detects the room conditions and selects the proper operating mode.

If the differance between thermostat setting and actual room temperature is more than +4 °F → Cooling or dry operation

If the difference between thermostat setting and actual room temperature is within ±4 °F → Monitor operation If the difference between thermostat setting and actual room temperature is more than –4 °F → Heating operation

● When the air conditioner has adjusted your room’s temperature to near the thermostat 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, Cooling) to adjust the temperature to the value set in the thermostat.

(The monitor operation range is ±4 °F relative to the thermostat setting.)

● If the mode automatically selected by the unit is not what you wish, select one of the mode operation (HEAT, COOL, DRY, FAN).

About Mode Operation

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 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 Defrosting operation, the OPERATION Indicator Lamp (Fig. 3 5) will flash, and the heat operation will be interrupted.

● After the start of heating operation, it takes some time 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.

During Heating mode:

Set the thermostat to a temperature setting 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 setting 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 operate).

During Fan mode:

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

En-6

TIMER OPERATION

Before using the timer function, be sure that the Remote Control Unit is set to the correct current time (☞ P. 4).

To Use the ON timer or OFF timer

Press the START/STOP button (Fig. 6 Q)

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

The indoor unit’s OPERATION Indicator Lamp (red) (Fig. 3 5) will light.

Press the TIMER MODE button (Fig. 6 N) to select the

OFF timer or ON timer operation.

Each time the button is pressed the timer function changes in the following order:

CANCEL OFF ON PROGRAM(OFF → ON, OFF ← ON)

The indoor unit’s green TIMER Indicator Lamp (Fig. 3 6) will light.

Use the TIMER SET buttons (Fig. 6 O) 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

To Cancel the Timer

Use the TIMER button to select “CANCEL”. 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 operating conditions (Mode, Fan Speed, Thermostat Setting, SUPER QUIET mode), after making the timer setting wait until the entire display reappears, then press the appropriate buttons to change the operating condition desired.

Press the START/STOP button (Fig. 6 Q).

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

The indoor unit’s OPERATION Indicator Lamp (red) (Fig. 3 5) will light.

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.

Press the TIMER MODE button (Fig. 6 N) to select the

PROGRAM timer operation (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 se-

lected 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) automatically in the morning before you arise.

En-7

To Cancel the Timer

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

To Change the Timer Settings

Follow the instructions given in the section

1. “To Use the ON Timer or OFF Timer” to select the timer setting you wish to change.

2. Press the TIMER MODE 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

SLEEP TIMER OPERATION

Unlike other timer functions, the SLEEP timer is used to set the length of time until air conditioner operate is stopped.

To Use the SLEEP Timer

While the air conditioner is operating or stopped, press the SLEEP button (Fig. 6 I).

The indoor unit’s OPERATION Indicator Lamp (red) (Fig. 3 5) lights and the TIMER Indicator Lamp (green) (Fig. 3 6) light.

To Change the Timer Settings

Press the SLEEP button (Fig. 6 I) once again and set the time using the TIMER SET (

Set the time while the Timer Mode Display is flashing (the flashing will continue about five seconds).

button: Press to advance the time. button: Press to reverse the time.

About five seconds later, the entire display will reappear.

About the SLEEP Timer

To prevent excessive warming or cooling during sleep, the SLEEP timer function automatically modifies the thermostat setting in accordance with the set time setting. When the set time has elapsed, the air conditioner completely stops.

/ ) buttons (Fig. 6 O).

To Cancel the Timer:

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

To Stop the Air Conditioner During Timer Operation:

Press the START/STOP button.

During Heating operation:

When the SLEEP timer is set, the thermostat setting is automatically lowered 2 °F every thirty minutes. When the thermostat has been lowered a total of 8 °F, 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

30 minutes

1 hour

1 hour 30 minutes

2 °F

4 °F

Set time

6 °F

8 °F

During Cooling/Dry operation:

When the SLEEP timer is set, the thermostat setting is automatically raised 2 °F every sixty minutes. When the thermostat has been raised a total of 4 °F, 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

Set time

1 hour

2 °F

4 °F

MANUAL AUTO OPERATION

Use the MANUAL AUTO operation in the event the Remote Control Unit is lost or otherwise unavailable.

How To Use the Main Unit Controls

Press the MANUAL AUTO button (Fig. 2 2) on the main unit control panel.

To stop operation, press the MANUAL AUTO button (Fig. 2 2) once again. (Controls are located inside the Open Panel)

● When the air conditioner is operated with the controls on the Main Unit, it will operate under the same mode as the AUTO mode selected on the Remote Control Unit (see page 6).

● The fan speed selected will be “AUTO” and the thermostat setting will be standard.(76

°F)

En-8

ADJUSTING THE DIRECTION OF AIR CIRCULATION

● Adjust the up, down, left, and right AIR directions with the AIR DIRECTION buttons on the Remote Control Unit.

● Use the AIR DIRECTION buttons after the Indoor Unit has started operating and the airflow-direction louvers have

stopped moving.

Vertical Air Direction Adjustment

Press the SET button (Vertical) (Fig. 6 R).

Each time the button is pressed, the air direction range will change as follows:

1 2 3 4 5 6

Types of Air flow Direction Setting:

1,2,3 : During Cooling/Dry modes 4,5,6 : During Heating mode

The Remote Control Unit’s display does not change.

● Use the air direction adjustments within the ranges shown above.

● The vertical airflow direction is set automatically as shown, in accordance with

the type of operation selected.

During Cooling/Dry mode : Horizontal flow 1 During Heating mode : Downward flow 5

● During AUTO mode operation, for the first minute after beginning operation, airflow will be horizontal 1; the air direction cannot be adjusted during this period.

● Direction 1 2 Only the direction of the Air Flow Direction Louver changes; the direction of the

Power Diffuser does not change.

4 5 6

DANGER!

● Never place fingers or foreign objects inside the outlet ports, since the internal fan operates at high speed and could cause personal injury.

● Always use the Remote Control Unit’s SET button to adjust the vertical airflow louvers. Attempting to move them manually could result in improper operation; in this case, stop operation and restart. The louvers should begin to operate properly again.

● During use of the Cooling and Dry modes, do not set the Air Flow Direction Louvers in the Heating range (4 -

6) for long periods of time, since wa-

ter vapor may condense near the outlet 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 heating range for more than 30 minutes, they will automatically return to position 3.

● When used in a room with infants, children, elderly or sick persons, the air direction and room temperature should be considered carefully when making settings.

Horizontal Air Direction Adjustment

Press the SET button (Horizontal)(Fig. 6 S).

● 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.

En-9

SWING OPERATION

Begin air conditioner operation before performing this procedure.

To select SWING Operation

Press the SWING button (Fig. 6 T).

The SWING Display (Fig. 7 c) will light. Each time the SWING button is pressed, the swing operation will change in the following order.

Up/down swing operation Left/right swing operation

Swing operation stops Up/down/left/right swing operation

To stop SWING Operation

Press the SWING button and select STOP.

Airflow direction will return to the setting before swing was begun.

About Swing Operation

● Up/down swing: Swing operation begins using the following range according to the current airflow direction.

Airflow direction is 1–4 (for cooling, dry).

With the upper airflow-direction louver in the horizontal position, the lower airflow-direction louver moves (swings) to direct airflow to a wide area.

Airflow direction is 3–6 (for heating).

With the airflow-direction louvers set for downward or straight down airflow, airflow is directly mainly at the floor.

● Left/right swing: The airflow-direction louvers move (swing) in the left/right airflow direction.

● Up/down/left/right swing: The airflow-direction louvers move (swing) in both the up/down and left/right airflow directions.

●

The SWING operation may stop temporarily when the

air conditioner’s fan is not operating, or when operating at very low speeds.

●

If the SET button(Vertical) is pressed during the up/

down swing operation, the up/down swing operation will stop and if the SET button(Horizontal) is pressed during the left/right swing operation, the left/right swing operation will stop.

COIL DRY OPERATION

The Indoor unit can be dried by pressing the COIL DRY button on the Remote Control Unit so as to avoid going moldy and restrain the breed of bacterium. The COIL DRY Operation will operate for 20 minutes after pressing the COIL DRY button and it will stop automatically.

To select COIL DRY Operation

Press the COIL DRY button (Fig. 6 L) during operation or when it stops.

The COIL DRY Display (Fig. 7 a) will light. Then it will disappear after 20 minutes.

To cancel COIL DRY Operation

Press the START/STOP button (Fig. 6 Q) during COIL DRY Operation.

The COIL DRY Display (Fig. 7 a) will go out . Then the operation stops.

About COIL DRY Operation

● Press the COIL DRY button again during COIL DRY Operation, COIL DRY Operation can be reset.

● The COIL DRY Operation cannot get rid of the existed mould or bacterium, and it has no sterilization effect either.

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CLEANING AND CARE

CAUTION!

● Before cleaning the air conditioner, be sure to turn it off and disconnect the Power Supply Cord.

● Be sure the Intake Grille (Fig. 1 8) is installed securely.

● When removing and replacing the air filters, be sure not to touch the heat exchanger, as per-

sonal injury may result.

Cleaning the Intake Grille

1. Remove the Intake Grille.

1 Place your fingers at both lower ends of the grille

panel, and lift forward; if the grille seems to catch partway through its movement, continue lifting upward to remove.

2 Pull past the intermediate catch and open the Intake

Grille wide so that it become horizontal.

Intake Grille

Mounting

shaft

Knob

Cleaning the Air Filter

1. Open the Intake Grille, and remove the air filter.

Lift up the air filter’s handle, disconnect the two lower tabs, and pull out.

Air filter handle

Hooks (two places)

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 panel.

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 Pull the knobs all the way. 2 Hold the grille horizontal and set the left and right

mounting shafts into the bearings at the top of the panel.

3 Press the place where the arrow on the diagram indi-

cates and close the Intake Grille.

Mounting shaft

Intake Grille

Mounting

shaft

Knob

● When used for extended periods, the unit may accumulate dirt inside, reducing its performance. We recommend that the unit be inspected regularly, in addition to your own cleaning and care. For more information, consult authorized service personnel.

● When cleaning the unit’s body, do not use water hotter than 104 °F, harsh abrasive cleansers, or volatile agents like benzene or thinner.

● Do not expose the unit body to liquid insecticides or hairsprays.

● When shutting down the unit for one month or more, first allow the fan mode to operate continuously for about one-half

day to allow internal parts to dry thoroughly.

Bearing

Knob

2 Close the Intake Grille.

(For purposes of example, the illustration shows the unit without Intake Grille installed.)

● Dust can be cleaned from the air filter either with a vacuum cleaner, or by washing the filter in a solution of mild detergent and warm water. If you wash the filter, be sure to allow it to dry thoroughly in a shady place before reinstalling.

● If dirt is allowed to accumulate on the air filter, air flow will be reduced, lowering operating efficiency and increasing noise.

● During periods of normal use, the Air Filters should be cleaned every two weeks.

Hooks (two places)

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TROUBLESHOOTING

WARNING!

Before requesting service, perform the following checks:

NORMAL

FUNCTION

Doesn’t operate immediately:

Noise is heard:

Smells:

In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the electrical breaker or disconnect the power supply plug, and consult authorized service personnel. Merely turning off the unit’s power switch will not completely disconnect the unit from the power source. Always be sure to turn off the electrical breaker or disconnect the power supply plug to ensure that power is completely off.

Symptom

● If the unit is stopped and then immediately started again, the compressor will not operate for about 3 minutes, in order to prevent fuse blowouts.

Whenever the Power Supply Plug is disconnected and then re-

●

connected to a power outlet, the protection circuit will operate for about 3 minutes, preventing unit operation during that period.

● During operation and immediately after stopping the unit, the sound of water flowing in the air conditioner’s piping may be heard. Also, noise may be particularly noticeable for about 2 to 3 minutes after starting operation (sound of coolant flowing).

● During operation, a slight squeaking sound may be heard. This is the result of minute expansion and contraction of the front cover due to temperature changes.

During Heating operation, a sizzling sound may be heard occasional.

●

This sound is produced by the Automatic Defrosting operation.

● 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.

Problem

See Page

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Mist or steam are emitted:

Airflow is weak or stops:

● 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 outdoor unit’s fan may stop, and steam may be seen rising from the unit. This is due to Automatic Defrosting operation.

● When Heating operation is started, fan speed is temporarily very low, to allow internal parts to warm up.

● During Heating operation, if the room temperature rises above the thermostat setting, the outdoor unit will stop, and the indoor unit will operate at very low fan speed. If you wish to warm the room further, set the thermostat for a higher setting.

● During Heating operation, the unit will temporarily stop operation (between 7 and 15 minutes) as the Automatic Defrosting mode operates. During Automatic Defrosting operation, the OPERATION 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 SUPER QUIET operation, the fan will operate at very low speed.

● In the monitor AUTO operation, the fan will operate at very low speed.

—

Water is produced from the outdoor unit:

● During Heating operation, water may be produced from the outdoor unit due to Automatic Defrosting operation.

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TROUBLESHOOTING

Symptom

CHECK ONCE

If the problem persists after performing these checks, or if you notice burning smells, or both the ORERATION Indicator Lamp (Fig. 3 5) and the TIMER Indicator Lamp (Fig. 3 6) flashes, or only the TIMER Indicator Lamp (Fig. 3 6) flashes, immediately stop operation, disconnect the Power Supply, and consult authorized service personnel.

Doesn’t operate at all:

Poor Cooling performance:

The unit operates differently from the Remote Control Unit’s setting:

● Is the Power Supply Plug disconnected its outlet?

● Has there been a power failure?

● Has a fuse blown out, or a circuit breaker been tripped?

● Is the timer operating?

● Is the Air Filter dirty?

● Air the air conditioner’s intake grille or 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?

● Is the unit set for SUPER QUIET operation?

● Are the Remote Control Unit’s batteries dead?

● Are the Remote Control Unit’s batteries loaded properly?

Items to check

See Page

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7 - 8

—

OPERATING TIPS

Operation and Performance

Heating Performance

● This air conditioner operates on the heat-pump principle, absorbing heat from outdoor air and transferring that heat indoors. As a result, the operating performance is reduced as outdoor air temperature drops. If you feel that insufficient heating performance is being produced, we recommend 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 conditioner until the room is heated.

AUTO Restart

In Event of Power Interruption

● The air conditioner power has been interrupted by a power failure. The air conditioner will then restart automatically in its previous mode when the power is restored.

● Operated by setting before the power failure.

Microcomputer-controlled Automatic Defrosting

● When using the Heating mode under conditions of low outdoor temperature and high humidity, frost may form on the outdoor unit, resulting in reduced operating performance.

In order to prevent this kind of reduced performance, this unit is equipped with a Microcomputer-controlled Automatic Defrosting function. If frost forms, the air conditioner will temporarily stop, and the defrosting circuit will operate briefly (for about 7-15 minutes).

During Automatic Defrosting operation, the OPERATION Indicator Lamp (red) will flash.

●

If a power failure occurs during TIMER operation, the timer will be reset and the unit will begin (or stop) operation at the new time setting. In the event that this kind of timer fault occurs the TIMER Indicator Lamp will flash (see Page. 3).

● 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.

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