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OPERATING MANUAL
HEAT & COOL MODEL
(REVERSE CYCLE)
AIR CONDITIONER
Duct Type
Indoor Unit
ARTG09LL
ARTG12LL
ARTG18LL
KEEP THIS MANUAL FOR FUTURE REFERENCE
P/N9374379439

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Table of Contents
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Questions and answers

Summarization of Contents

Safety Precautions
DANGER Warnings
Identifies procedures that could result in death or serious injury.
WARNING Warnings
Identifies procedures that might lead to death or serious injury.
CAUTION Warnings
Identifies procedures that might cause personal harm or property damage.
Features and Functions
Energy Saving and Comfortable Functions
Details INVERTER, ECONOMY, SUPER QUIET, and AUTO CHANGEOVER features.
Clean Functions
Describes REMOVABLE and MILDEW-RESISTANT AIR FILTERS for easy maintenance.
Remote Controller Options
Covers WIRED and optional WIRELESS remote controllers.
Name of Parts
Remote Controller Overview
Identifies and labels buttons and displays on the remote controller.
Preparatory Operation
Setting the Current Day and Time
Step-by-step guide on setting the current day and time on the remote controller.
Operation
Starting and Stopping Operation
Instructions for turning the air conditioner on and off.
Setting Operation Mode and Temperature
Guide to selecting modes (AUTO, COOL, DRY, FAN, HEAT) and room temperature.
Fan Speed and Economy Mode
How to adjust fan speed and activate economy operation.
Operation (continued)
Room Temperature Sensor Selection
Explains how to choose between indoor unit or remote controller for temperature detection.
Child Lock Function
How to activate and deactivate the child lock feature on the remote.
Timer Functions
Timer Types Overview
Introduces OFF, ON, WEEKLY, and SET BACK timers.
ON/OFF Timer
Setting and Cancelling ON/OFF Timer
Steps for configuring and removing ON/OFF timers.
Weekly Timer
Setting the Weekly Timer
Guide to setting daily operating times for the weekly timer.
Deleting Weekly Timer Settings
Instructions on how to remove set operating times.
Weekly Timer (continued)
Timer Operation and Cancellation
How the weekly timer runs and how to stop it.
Setting DAY OFF (Holiday)
How to disable timer operation for specific days.
Temperature Set Back Timer
Setting the Temperature Set Back Timer
Steps to configure day, time, and temperature settings.
Starting and Cancelling the Timer
How to activate and deactivate the timer.
Economy Operation
Using Economy Mode
How to activate and deactivate the economy function.
Cleaning and Care
Air Filter Maintenance
Instructions for cleaning the air filter and resetting the indicator.
Troubleshooting
Common Operational Issues
Addresses issues like no operation, noise, smells, mist, weak airflow, and water production.
Thermo Sensor Error
What to do if the thermo sensor display flashes.
Troubleshooting (continued)
Troubleshooting No Operation
Checks for power, fuse, or circuit breaker issues.
Addressing Poor Performance
Tips for improving cooling or heating performance.
Operating Tips
Heating Performance Factors
Discusses heating efficiency in low temperatures and defrosting.
Ambient Temperature Effects
Notes fan behavior during high/low ambient temperatures.
Multi-Unit Control Options
Covers dual remote controllers and group control features.
Operating Tips (continued)
AUTO Mode Operation Details
Explains AUTO mode selection and monitor operation.
Specific Mode Operations
Details for Heating, Cooling, Dry, and Fan modes.
Operating Tips (continued)
Restart, Multi-Unit, and Notices
Covers AUTO restart, multi-unit systems, simultaneous use, and operational notes.
Self-Diagnosis
Error Code Interpretation
How to understand displayed error codes for system inspection.

Table of Contents