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Operating Instructions
Air Conditioner
Model No.
Indoor Unit
CS-RZ25XKRW
CS-RZ35XKRW
CS-RZ42XKRW
CS-RZ50XKRW
Outdoor Unit
Single Split
CU-RZ25XKR
CU-RZ35XKR
CU-RZ42XKR
CU-RZ50XKR
* Outdoor Unit
Multi Split
CU-2Z52VBR
CU-3Z54VBR
CU-4Z71VBR
CU-4Z80VBR
CU-5Z100VBR
Operating Instructions
Air Conditioner
Before operating the unit, please read these operating
instructions thoroughly and keep them for future reference.
Before installation, the installer should:
Read the Installation Instructions, then request the customer
keep them for future reference.
Remove the remote control packed with the indoor unit.
* Kindly consult authorised dealer for connectivity validity.
ACXF55-31330
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Summarization of Contents
Quick Guide
Inserting Batteries
Instructions for inserting AAA or R03 batteries into the remote control.
Clock Setting
Guide to setting the time on the remote control display.
Safety Precautions
Indoor and Outdoor Unit Safety
Safety warnings and precautions for the indoor and outdoor units.
Remote Control Safety
Safety guidelines for handling the remote control, especially for children.
Refrigerant Safety
Precaution for R32 Refrigerant
Warnings and precautions regarding the use of R32 flammable refrigerant.
Installation and Servicing Safety
Installation Safety
Safety requirements for the installation of the air conditioner.
Servicing Safety
Safety guidelines for servicing the air conditioner.
Operational Safety
Refrigerant Presence and Fire Safety
Checks for refrigerant, fire extinguishers, and ignition sources.
Ventilation and Equipment Checks
Ensuring proper ventilation and checking equipment condition.
Electrical Device Safety
Safety precautions for electrical components and connections.
Repair and Leak Detection Safety
Component Repair Safety
Safety procedures for repairing sealed and intrinsically safe components.
Leak Detection Methods
Acceptable methods for detecting refrigerant leaks.
Refrigerant Management Safety
Removal and Evacuation Safety
Safe procedures for removing and evacuating refrigerant.
Charging Procedures Safety
Safety guidelines for charging refrigerant into the system.
Decommissioning Safety
Safety requirements for decommissioning the air conditioner.
Labelling and Recovery Safety
Equipment Labelling
Requirements for labelling equipment that has been emptied of refrigerant.
Refrigerant Recovery Safety
Safe practices for recovering refrigerant into cylinders.
How to Use
Adjust Airflow Direction
Instructions for adjusting the airflow direction using the remote control.
Fan Speed and Quiet Operation
Guide to selecting fan speed and activating quiet operation mode.
Powerful and ECO Modes
Explanation of Powerful mode for quick cooling and ECO for energy saving.
Sleep Mode Operation
How to use the sleep mode for a comfortable sleeping environment.
Setting Timers
Instructions for setting ON and OFF timers for the unit.
To Learn More
Operation Modes Explained
Detailed explanation of different operation modes like AUTO, HEAT, COOL, DRY, FAN.
Energy Saving Temperature Settings
Recommended temperature ranges for energy saving in different modes.
Air Flow Direction Details
Specifics on horizontal and vertical flap movements in various modes.
Auto Restart Control
How the unit restarts automatically after a power failure.
Cleaning the Air Conditioner
Indoor Unit Cleaning
Instructions for wiping the indoor unit with a soft cloth.
Outdoor Unit Cleaning
Guidance on cleaning debris around the outdoor unit and drain pipe.
Front Panel Removal
Step-by-step guide on how to remove the front panel of the indoor unit.
Air Filter Maintenance
Procedure for cleaning and replacing air filters.
Troubleshooting
Symptoms and Causes
Common symptoms and their potential causes for unit malfunction.
Checks Before Servicing
List of checks to perform before calling for professional servicing.
Remote Control Issues
Remote Control Malfunction
Troubleshooting steps for a missing or malfunctioning remote control.
Indicator Brightness and Seasonal Checks
Adjusting indicator brightness and conducting seasonal inspection.
Extended Non-Use Procedures
Preparation steps for periods when the unit will not be used.
Non-Serviceable Conditions
Conditions requiring consultation with an authorized dealer.
Retrieve Error Codes
Error Code Retrieval Procedure
Steps to retrieve and interpret diagnostic error codes using the remote control.
Information
Disposal and Battery Information
Information on the collection and disposal of old equipment and used batteries.
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Questions and answers