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Panasonic CS-KE36NKU User Manual

Panasonic CS-KE36NKU
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AIR CO
N
DIT
ION
E
R
IMPORTANT
These air conditioners employ new
refrigerant R410A.
Pay special attention when
servicing the unit.
TECHNICAL & SERVICE MANUAL
CS-KE30NKU + CU-KE30NKU
CS-KE36NKU + CU-KE36NKU
DC INVERTER SPLIT SYSTEM AIR CONDITIONER
Outdoor Model No.
CU-KE30NKU
CU-KE36NKU
Product Code No.
1 852 360 82
1 852 360 83
Indoor Unit Outdoor Unit
CS-KE30NKU
CS-KE36NKU
CU-KE30NKU
CU-KE36NKU
Indoor Model No.
CS-KE30NKU
CS-KE36NKU
Product Code No.
1 852 360 88
1 852 360 89
REFERENCE NO.
SM700876

Table of Contents

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Panasonic CS-KE36NKU Specifications

General IconGeneral
BrandPanasonic
ModelCS-KE36NKU
CategoryAir Conditioner
LanguageEnglish

Summary

TECHNICAL & SERVICE MANUAL

DC INVERTER SPLIT SYSTEM AIR CONDITIONER

Overview of the air conditioner type.

SAFETY PRECAUTIONS

Symbol Indication

Explanation of warning and caution symbols used in the manual.

Warning and Prohibited Actions

Critical safety instructions and prohibited actions for repair work.

Safety Precautions (Warning and Caution)

Warning Items

Critical safety instructions to prevent severe injury or death.

Caution Items

Safety instructions highlighting potential consequences.

OPERATING RANGE

Cooling Operating Range

Operating temperature limits for cooling mode.

Heating Operating Range

Operating temperature limits for heating mode.

SPECIFICATIONS

Unit Specifications

Detailed technical specifications for indoor and outdoor units.

Major Component Specifications

Specifications for key components like fan, motor, and heat exchanger.

Other Component Specifications

Specifications for sensors and other system components.

DIMENSIONAL DATA

Indoor Unit Dimensions

Dimensional drawings and measurements for the indoor unit.

Outdoor Unit Dimensions

Dimensional drawings and measurements for the outdoor unit.

REFRIGERANT FLOW DIAGRAM

Refrigerant Flow Diagram

Diagram illustrating the refrigerant flow during operation cycles.

PERFORMANCE DATA

Temperature Charts - Cooling

Cooling performance charts showing pressure, current, and discharge air temp.

Temperature Charts - Heating

Heating performance charts showing pressure, current, and discharge air temp.

Cooling Capacity

Cooling capacity data for CS-KE30NKU at various temperatures.

Cooling Capacity (Low Ambient)

Cooling capacity data at low ambient temperatures for CS-KE30NKU.

Heating Capacity

Heating capacity data for CS-KE30NKU at various temperatures.

Air Throw Distance Charts

Charts showing airflow distance for cooling and heating.

ELECTRICAL DATA

Electrical Characteristics

Electrical data for cooling and heating at 230V.

Electric Wiring Diagrams

Wiring diagram for the indoor unit.

Electric Wiring Diagrams

Wiring diagram for the outdoor unit.

FUNCTIONS

Operation Functions

Explanation of Emergency, Auto, and Sensor Dry operation modes.

High Power and Night Setback Modes

Details on HIGH POWER and NIGHT SETBACK features.

Unoccupied Mode

Function and usage of the UNOCCUPIED mode.

Noise Reducing Control (Outdoor Unit)

Operation Sound Levels

Sound levels with and without noise reduction.

Switching Procedure to Noise Reducing Control

Steps to enable the noise reduction feature.

Maximum Current Value Change Function

Maximum Current Value Change Procedure

Steps to adjust maximum current settings for breaker tripping prevention.

Protective Functions

Overload Prevention and Freeze Prevention

Overload prevention during heating and freeze prevention mechanisms.

Compressor Discharge Temperature Control

Control to prevent compressor discharge temp. from rising.

Reverse-Cycle Defrosting and Peak Current Control

Defrosting sequence and peak current cut-off control.

TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)

Precautions and Self-Diagnostics Method

Safety precautions and procedure to initiate self-diagnostics.

Indoor Unit Self-Diagnostics Lamps

Indicators and codes for indoor unit self-diagnostics.

Self-Diagnostics Function Failure

Troubleshooting steps when self-diagnostics fails.

Checking Indoor and Outdoor Units

Procedures for checking indoor and outdoor unit operation.

Serial Communication Error Identification

Procedure to identify communication errors between units.

Alarm Code E05 Troubleshooting

Troubleshooting for Alarm Code E05 related to communication errors.

Alarm Codes E07/P04/P05/P20/P27 Troubleshooting

Troubleshooting for Alarm Codes E07, P04, P05, P20, P27.

Fan Motor Trouble Diagnosis

Diagnosis and troubleshooting for fan motors.

Indoor Fan Motor Diagnosis

Diagnosis and troubleshooting for the indoor fan motor.

Outdoor Fan Motor Diagnosis

Diagnosis and troubleshooting for the outdoor fan motor.

Noise Malfunction and EMI Troubleshooting

Troubleshooting noise and interference issues.

CHECKING ELECTRICAL COMPONENTS

Measurement of Insulation Resistance

Procedure for measuring insulation resistance of components.

Checking Fuse Continuity on PCB

Method to check fuse continuity on the PCB assembly.

REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT

Characteristics of New Refrigerant R410A

Properties and characteristics of R410A refrigerant.

Checklist before Servicing

Pre-servicing checklist and flare tool usage for R410A.

Tools and Tubing Procedures for R410A

Specialized tools and tubing installation for R410A.

Compressor Malfunction Procedure

Procedure for diagnosing and replacing a faulty compressor.

Recharging Refrigerant

Detailed steps for recharging refrigerant into the system.

Refrigerant Leak Detection and Repair

Steps for detecting, repairing leaks, and recharging refrigerant.

Charging Additional Refrigerant and Retro-Fitting Systems

Guidelines for adding refrigerant and retrofitting existing systems.

APPENDIX A Operating Instructions

FEATURES

Remote Controller Features

Microprocessor, one-touch, timers, fan speed, air sweep, auto flap.

Special Operation Modes

Auto switching, hot start, auto restart, high power, quiet, unoccupied modes.

INSTALLATION LOCATION

Critical Installation Warnings

Critical safety warnings regarding installation and wiring.

Installation Precautions and Notices

Precautions to avoid hazards and FCC compliance.

NAMES OF PARTS

Indoor Unit Parts Identification

Identification of parts on the indoor unit.

Outdoor Unit Parts Identification

Identification of parts on the outdoor unit.

UNIT DISPLAY AND OPERATION BUTTON

Important notes on radio equipment and power cycling.

REMOTE CONTROLLER (DISPLAY)

Display Symbols and Indicators

Explanation of symbols used on the remote controller display.

REMOTE CONTROLLER

Transmitter, Display, and Buttons

Information on transmitter, display, fan speed, flap, and cancel buttons.

Sensor, Address Switch, and Temp Display

Sensor, address switch, and temperature display selector functions.

Quiet and Timer Buttons

Function of the quiet mode and timer setting buttons.

Remote Controller Functions

Sensor, Timer, and Temperature Settings

Sensor, 1 HR TIMER, Temperature setting, MODE selector.

Special Modes

NIGHT SETBACK, HIGH POWER, UNOCCUPIED, CLOCK, ACL buttons.

OPERATION WITH THE REMOTE CONTROLLER

Automatic and Manual Operation Modes

How the unit automatically switches modes and manual operation steps.

Fan Speed, Fan Only, Night Setback, and Quiet Modes

Adjusting fan speed, fan-only, night setback, and quiet modes.

High Power and Unoccupied Modes

How to use HIGH POWER and UNOCCUPIED modes.

SPECIAL REMARKS

Heating, Cooling, and DRY Operation Details

Operation characteristics and considerations for heating, cooling, and DRY modes.

Performance, Defrosting, and Cold Draft Prevention

Heating performance, defrosting, and cold draft prevention explanations.

Power Failure and Clicking Sound

Unit behavior during power failures and normal clicking sounds.

SETTING THE TIMER

Setting Present Time, OFF Time, and ON Time

Steps to set the current time and ON/OFF timers.

Daily ON/OFF Repeat Timer and 1-Hour OFF Timer

Setting daily repeating timers and the 1-hour OFF timer.

TIPS FOR ENERGY SAVING

ADJUSTING THE AIRFLOW DIRECTION

Horizontal, Vertical, and Sweep Airflow Adjustment

Adjusting horizontal, vertical airflow, and using the sweep function.

Auto Flap Function and Operation Without Remote

Auto flap function and manual unit operation steps.

CARE AND CLEANING

Cleaning Indoor Unit Casing, Grille, and Filter

How to clean the indoor unit casing, grille, and filter.

Filter Replacement and Unit Cleaning

Steps for replacing the filter and cleaning the unit/remote.

TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)

Common Unit Operation Issues

Problems like unit not running, blinking lamp, compressor stopping, poor performance.

Clicking Sound and Outdoor Unit Issues

Explanation of clicking sounds and outdoor unit operation issues.

SPECIFICATIONS

Model CU-KE30NKU / CS-KE30NKU Specifications

Detailed specifications for the CU-KE30NKU and CS-KE30NKU models.

Model CU-KE36NKU / CS-KE36NKU Specifications

Detailed specifications for the CU-KE36NKU and CS-KE36NKU models.

APPENDIX B INSTALLATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS

Important Pre-Installation Guidelines

Essential safety and installation information.

General Installation Requirements

Overview of installation requirements and tools.

Installation Site Selection Guidelines

Guidelines for choosing the optimal installation location.

Indoor and Outdoor Unit Installation Procedures

Step-by-step instructions for installing the indoor unit.

Refrigerant Tubing and Air Purging

Procedures and precautions for handling refrigerant tubing and purging air.

Remote Controller and Address Switch Setup

Remote controller installation and address switch configuration.

INSTALLATION INSTRUCTIONS

Transportation and Installation Precautions

Precautions for safely moving and installing the units.

Critical Wiring and General Safety Precautions

Critical safety warnings related to wiring and general installation hazards.

Servicing and General Safety Precautions

Safety measures for servicing and general installation hazards.

General Installation Information

Required Tools and Supplied Accessories

List of required tools and supplied accessories for installation.

Copper Tubing and Insulation Material

Specifications for copper tubes and insulation.

Installation Site Selection

Additional Materials and Indoor Unit Site Selection

Additional materials and guidelines for indoor unit site selection.

Outdoor Unit Site Selection Guidelines

Guidelines for selecting the outdoor unit installation site.

Installation in Snowy/Windy Areas

Installation considerations for snowy or windy areas.

Wind-proof Duct Dimensions

Dimensional diagrams for wind-proof ducts.

Snow-proof Duct Dimensions

Dimensional diagrams for snow-proof ducts.

Space Requirements for Specific Duct Models

Space requirements for specific wind-proof duct models.

Obstacle Clearances for Unit Installations

Obstacle clearances for front/rear and front-rear row installations.

How to Install the Indoor Unit

Removing Rear Panel and Making Hole

Steps to remove the rear panel and make a hole for tubing.

Installing the Rear Panel and Making Wall Hole

Steps to securely mount the rear panel and make the wall hole.

Grille Removal/Installation and Filter Handling

How to remove/install the grille and handle the filter.

Tubing Shaping and Wiring Instructions

How to shape tubing and general wiring precautions.

Wire Size and Length Requirements

Guidelines for selecting wire size and length based on codes.

Inter-unit Wiring Connections

Steps for connecting inter-unit wiring.

Connecting Wires to Terminals

Detailed steps for connecting wires to terminals.

Indoor Unit Mounting and Right-Side Tubing

How to mount the indoor unit and route right-side tubing.

Left-Side Tubing and Drain Hose/Cap Handling

Steps for routing left-side tubing and handling drain hose/cap.

Unmounting Unit, Frame Fastening, and Drain Hose

Instructions for unmounting unit, fastening frame, and installing drain hose.

How to Install the Outdoor Unit

Outdoor Unit Wiring and Tubing/Wiring Routing

Instructions for wiring and routing tubing/wiring for the outdoor unit.

Refrigerant Tubing

Flaring Method and Procedure

Explanation and steps for flaring copper tubes.

Caution Before Connecting Tubes Tightly

Precautions for securely connecting tubing.

Connecting and Insulating Refrigerant Tubing

How to connect and insulate refrigerant tubing.

Taping Tubes and Finishing Installation

Taping tubes and sealing the wall opening.

Air Purging

Air Purging with Vacuum Pump

Procedure for purging air using a vacuum pump.

Pump Down Procedure

Steps for collecting refrigerant gas into the outdoor unit.

How to Test Run the Air Conditioner

Test Run Mode Operation

Steps to enter, start, stop, and exit Test Run mode.

Basic Functions of the Service Valves

Pump Down Explanation and Procedure

Explanation and steps for the pump down process.

Service Valve Connections

Remote Controller Installation Position and Mounting

Recommended locations and mounting for the remote controller.

Address Switch

Setting Remote Controller Address

How to set the address for preventing remote controller interference.

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