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User Manual
WSD27HWA
WSD73HWA
WSD36HWA
WSD91HWA
WSD51HWA

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Table of Contents
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Summarization of Contents

CUSTOMER CARE AND SERVICE
R32 Refrigerant Warning
Important safety information regarding the use of R32 refrigerant.
SAFETY INSTRUCTIONS
Children and Vulnerable People Safety
Safety precautions for children and vulnerable individuals using the appliance.
Installation and Use Precautions
Critical guidelines for safe installation and proper use of the air conditioner.
Minimum Floor Areas
Minimum Floor Areas for R32 Refrigerant
Specifies minimum room sizes required for R32 refrigerant safety.
PRODUCT DESCRIPTION
Unit Components Identification
Identification of key components of the indoor and outdoor units.
INDOOR UNIT DISPLAY
Indicator Lamps and Feature Codes
Explanation of indicator lamps and feature codes on the indoor unit display.
REMOTE CONTROLLER BASICS
How to Use the Remote Controller
Basic instructions for operating the air conditioner with the remote.
REMOTE CONTROLLER LOCATION AND BATTERY
Remote Controller Location
Guidelines for optimal placement and range of the remote controller.
Battery Installation /Replacement
Instructions for inserting and replacing batteries in the remote controller.
REMOTE CONTROLLER DESCRIPTION
Button Functions and Display Icons
Detailed explanation of all buttons and icons on the remote controller.
DETAILED REMOTE CONTROLLER OPERATIONS
Detailed Button Operations
Explains usage of Fan, Swing, Turbo, ECO, Temp, and Timer buttons.
REMOTE CONTROLLER DISPLAY ICONS
Remote Controller Display Icons Explained
Descriptions of various icons shown on the remote controller's screen.
HOW TO USE THE REMOTE CONTROLLER
Basic Operation and Swing Function
Guide to starting, mode selection, temperature, fan speed, and airflow direction.
TIMER OPERATION
Timer Operation
Instructions for setting timer functions for auto-on and auto-off operations.
ADVANCED REMOTE CONTROL FUNCTIONS
Advanced Functions Operations
Covers Turbo, Self Clean, Quiet, and 8°C Heating.
ADDITIONAL REMOTE FUNCTIONS
ECO, Fresh, Wireless, Lock, and Set Functions
Details on using ECO, Fresh, Wireless, Lock, and Set functions.
DIFFUSE AND SLEEP FUNCTIONS
Diffuse and Sleep Functions
How to activate and use the Diffuse and Sleep functions.
HOW TO USE THE INDOOR UNIT
Adjusting Airflow Direction
Instructions on adjusting vertical and horizontal airflow direction manually or via remote.
EMERGENCY OPERATION
Manual Control Button Usage
Steps for operating the unit using the manual control button during emergencies.
CLEANING AND MAINTENANCE
Before Maintenance
Safety precautions and preparation steps before cleaning the indoor unit.
Cleaning the Filters
Step-by-step guide for cleaning the air filters, including air freshening filters.
FILTER REPLACEMENT AND STORAGE
Replacing the Filters
Procedure for removing and installing air filters and air freshening filters.
Preparation for Extended Non-operation
Steps to prepare the unit for long periods of non-use.
Pre-season Inspection
Checks to perform before the start of the cooling/heating season.
OPERATION TIPS
Compressor Protection and Anti-Cold Air
Information on compressor restart delay and anti-cold air function in heating mode.
Defrosting and White Mist Generation
Details on the defrosting process and causes of white mist from the indoor unit.
Abnormal Noise and Odors
Explanation of common noises and peculiar smells from the unit.
Operation Mode Changes and Insufficient Heat
Covers switching to FAN mode and factors affecting heating performance.
AUTO-RESTART FUNCTION
Auto-restart Function
Behavior of the unit after a power failure and restart.
TROUBLESHOOTING
Trouble Codes and Flashing Indicators
Interpreting flashing indicators and error codes for troubleshooting.
Unit Start and Performance Issues
Troubleshooting for unit not starting or poor cooling/heating performance.

Table of Contents