OPERATING MANUAL ROOM AIR CONDITIONER English MULTI SPLIT TYPE (3 ROOMS) Indoor Unit ASU18T Outdoor Unit AOU36T KEEP THIS OPERATION MANUAL FOR FUTURE REFERENCE.
CONTENTS SAFETY PRECAUTIONS .......................................... 1 FEATURES AND FUNCTIONS ................................. 2 NAME OF PARTS ...................................................... 3 PREPARATION .......................................................... 7 OPERATION .............................................................. 9 TIMER OPERATION .................................................. 1 3 SWING OPERATION ............................................ 17 ENERGY SAVE OPERATION ...
FEATURES AND FUNCTIONS AUTOMATIC OPERATION ● COOLING MODEL Merely press the START/STOP button, and the unit will begin automatic operation in the Cooling or Dry mode as appropriate, in accordance with the thermostat setting and the actual temperature of the room.
Fig. 1 Fig. 2 Fig. 3 Fig. 5 Fig. 4 Fig. 6 Fig. 8 Fig.
NAME OF PARTS Fig. 1 Indoor Unit Fig. 6 Remote Control Unit 1 Operating Control Panel (Fig. 2) 2 MANUAL AUTO button J K L M N O P Q R 3 Remote Control Signal Receiver 4 Indicator Lamps (Fig. 3) 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 17 Auto Restart). 7 SWING Indicator Lamp (orange) 8 9 0 A Intake Grille (Fig.
NAME OF PARTS Instructions relating to heating(*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). Fig. 1 Fig. 2 Fig. 3 Fig. 5 Fig. 4 Fig. 6 J G SLEEP K TIMER CLOCK U V AUTO COOL MASTER CONTROL H I SET SET TEMP. TIME FAN CONTROL L CLOCK W AM PM OFF M START STOP A N * X AUTO COOL DRY FAN HEAT TIMER SLEEP H ON M OFF Y ON TIMER RESET ENERGY SAVE AUTO HIGH MED LOW Z [ \ ] O P Q Fig. 7 En-5 SET SWING SET SWING TIME TEST ENERGY ADJUST RUN ACL SAVE R S T Fig.
Fig. 1 Indoor Unit Fig. 6 Remote Control Unit 1 Operating Control Panel (Fig. 2) 2 MANUAL AUTO button G H I J K L M N 3 Remote Control Signal Receiver 4 5 6 7 Indicator Lights (Fig. 3) OPERATION Indicator Light (red) TIMER Indicator Light (green) SWING Indicator Light (orange) (VERTICAL SWING) 8 SWING Indicator Light (orange) (HORIZONTAL SWING) ● If the TIMER indicator light flashes when the timer is operating, it indicates that a fault has occurred with the timer setting (See page 15 Auto Restart).
PREPARATION CAUTION! Turn on the Power In the case of a direct line connection, turn on the circuit breaker. Load Batteries (AAA × 2) 1 Press and slide the battery compartment lid on the reverse side to open it. Slide in the direction of the arrow while pressing the mark. ● 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.
PREPARATION CAUTION! Load Batteries (R03/LR03/AAA × 4) 1 Open the battery compartment lid. 1 Slide the battery compartment lid until it stops. 2 While strongly gripping the portion on each side of the battery compartment lid that has a rough surface, slide the lid until it comes completely off. 2 1 2 2 Insert batteries. 3 Close the battery compartment lid. Be sure to align the battery polarities ( ) correctly. 2 Never mix new and used batteries, or batteries of different types.
OPERATION To Select Mode Operation 1 Press the START/STOP button (Fig.6 P). 2 Press the MASTER CONTROL button (Fig.6 K) to select the desired mode. The indoor unit’s OPERATION indicator lamp (red) (Fig. 3 5) will light. The air conditioner will start operation. Each time the button is pressed, the mode will change in the following order: s DRY sAUTO s COOL s FAN About three seconds later, the entire display will reappear. Example: When set to COOL To Set the Thermostat Press the SET TEMP.
To Select Automatic Operation Press the MASTER CONTROL button to select AUTO. The operating mode “AUTO” will appear alone in the display. The transmit indicator will flash to indicate the command has been sent, and about three seconds later the entire display panel will reappear. To Set the Thermostat Press the TEMPERATURE set button.
OPERATION Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). To Select Mode Operation SLEEP 1 Press the START/STOP button. 2 Press the MASTER CONTROL button to select the desired mode. TIMER The indoor unit’s OPERATION indicator light (red) will be on. The air conditioner will start operating. COOL MASTER CONTROL SET SET TEMP. TIME FAN CONTROL Each time the button is pressed, the mode will change in the following order.
OPERATION Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). 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.
TIMER OPERATION 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 current time (See page 5). To Use the ON timer or OFF timer 1 SLEEP Press the START/STOP button (if the unit is already operating, proceed to step 2). TIMER TIMER ON The indoor unit’s OPERATION indicator light (red) will turn on. 2 Press the TIMER button to select the OFF timer or ON timer operation.
TIMER OPERATION About the PROGRAM timer About the ON 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 twentyfour hour period.
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. Vertical Air Direction Adjustment DANGER! Press the AIR FLOW DIRECTION VERTICAL SET button.
ADJUSTING THE DIRECTION OF AIR CIRCULATION Vertical (up-down) direction of airflow is adjusted by pressing the Remote Control Unit’s AIR FLOW DIRECTION button. Horizontal (right-left) airflow direction is adjusted manually, by moving the Air Flow Direction Louvers. Whenever making horizontal airflow adjustments, start air conditioner operation and be sure that the vertical air direction louvers are stopped. Vertical Air Direction Adjustment Press the AIR FLOW DIRECTION button (Fig. 6 Q).
SWING OPERATION Begin air conditioner operation before performing this procedure. To select SWING Operation Press the SWING LOUVER button (Fig. 6 R). The SWING indicator lamp (orange) (Fig. 3 7) will light. In this mode, the Air Flow Direction Louvers will swing automatically to direct the airflow both up and down. To Stop SWING Operation Press the SWING LOUVER button (Fig. 6 R) once again. The SWING indicator lamp (orange) (Fig. 3 7) will go out.
SWING OPERATION Begin air conditioner operation before performing this procedure. To select Vertical airflow SWING Operation Press the AIR FLOW DIRECTION VERTICAL SWING button . SET The SWING indicator light (VERTICAL SWING) (orange) will turn on. In this mode, the UP/DOWN air direction flaps will swing automatically to direct the air flow both up and down.
ENERGY SAVE OPERATION Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). The air conditioner can be operated while keeping energy consumption costs down. How To Use the ENERGY SAVE OPERATION 1 SWING SET SET Press the START/STOP button (if the unit is already operating, proceed to step 2). SWING TIME TEST ENERGY ADJUST RUN ACL SAVE The indoor unit’s OPERATION indicator light (red) will turn on.
CLEANING AND CARE CAUTION! ● Before cleaning the air conditioner, be sure to turn it off and disconnect the power supply. ● Be sure the intake grille is installed securely. ● When removing and replacing the air filters, be sure not to touch the heat exchanger, as personal injury may result. ● Turn off the circuit breaker. Cleaning the Intake Grille Cleaning the Air Filter 1. Remove the intake grille.
Cleaning the Intake Grille 1. Open 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 becomes horizontal. 4. Set the mounting shaft of the Intake Grille into the bearings at the top of the panel. 1 Pull the Knobs all the way.
TROUBLESHOOTING Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). WARNING! In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the circuit breaker, 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 your circuit breaker to ensure that power is completely off.
TROUBLESHOOTING Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
OPERATING TIPS Temperature and Humidity Range Cooling and Dry Mode Indoor temperature Maximum 95 °F DB / 71 °F WB Minimum 64 °F DB / 55 °F WB Outdoor temperature Maximum Minimum Indoor humidity 115 °F DB 32 °F DB About 80 % or less Outdoor Temperature If the unit is used for long periods under high-humidity conditions, condensation 68 °F or above may form on the surface of the indoor unit, and drip onto the floor or other objects underneath.