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Panasonic
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Air Conditioner
Panasonic
CU-4KE24NBU, CS-MKE9NB4U, CU-4KE31NBU, CU-3KE19NBU, CS-MKE12NB4U, CS-KE18NB4UW DC1111-0
Models:
CZ-18BT1U
CS-KE18NB4UW
CS-MKE12NB4U
CU-3KE19NBU
CU-4KE24NBU
CU-4KE31NBU
CS-MKE9NB4U
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Troubleshooting
Specification
Install
Refrigerant Flow Diagram
Dimension
Maintenance
Wired Remote Controller
Remedy for symptom 3 to
2If the self-diagnosticsfunction fails to operate
TIMER lamp
Page 114
Image 114
DC1111-0
Page 113
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Image 114
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Contents
TECHNICAL & SERVICE MANUAL
INDOOR UNIT : CS-MKE9NB4U& CZ-18BT1U
CS-MKE12NB4U& CZ-18BT1U CS-KE18NB4UW& CZ-18BT1U
DC INVERTER MULTI-SYSTEMAIR CONDITIONER
SAFETY PRECAUTIONS
which may cause a unit breakdown
4. REFRIGERANT FLOW DIAGRAM
TABLE OF CONTENTS
2. SPECIFICATIONS
6. MAINTENANCE
CZ-RD515U
CZ-RD515U
APPLICABLE MULTI-OUTDOORUNITS
Indoor Air Intake Temp
1. OPERATING RANGE
Temperature
Outdoor Air Intake Temp
Dimensions & Weight Indoor Unit
2. SPECIFICATIONS
2-1.Unit Specifications
2-1-1. Indoor Unit CS-MKE9NB4U& CZ-18BT1U
<208V>
Dimensions & Weight Indoor Unit
CS-MKE9NB4U& CZ-18BT1U
Type
<230V>
Dimensions & Weight Indoor Unit
2-1-2. Indoor Unit CS-MKE12NB4U& CZ-18BT1U
Type
<208V>
Dimensions & Weight Indoor Unit
CS-MKE12NB4U& CZ-18BT1U
Type
<230V>
Dimensions & Weight Indoor Unit
2-1-3. Indoor Unit CS-KE18NB4UW& CZ-18BT1U
Type
<208V>
Dimensions & Weight Indoor Unit
CS-KE18NB4UW& CZ-18BT1U
Type
Control PCB
2-2.Major Component Specifications
2-2-1.Indoor Unit
Fan Motor
Drain Pump
Control PCB
Fan Motor
Heat Exchanger Coil
Drain Pump
Control PCB
Fan Motor
Heat Exchanger Coil
Temperature F C
2-3.Other Component Specifications
Temperature F C
Indoor Unit CS-MKE9NB4U& CZ-18BT1U
CS-MKE12NB4U& CZ-18BT1U CS-KE18NB4UW& CZ-18BT1U
3. DIMENSIONAL DATA
Indoor Unit CS-MKE9NB4U& CZ-18BT1U
Unit inch mm
Indoor Unit CS-MKE9NB4U& CZ-18BT1U
4-1.Refrigerant Flow Diagram
4. REFRIGERANT FLOW DIAGRAM
CS-MKE12NB4U& CZ-18BT1U
Indoor Unit CS-MKE9NB4U& CZ-18BT1U
5-1.Electric Wiring Diagrams
5. ELECTRICAL DATA
CS-MKE12NB4U& CZ-18BT1U CS-KE18NB4UW& CZ-18BT1U
6-1-1.Remove the air intake grill
6. MAINTENANCE
6-1.Disassembly Procedure
Fig.1
Fig.7
6-1-3.Remove the ceiling panel
Fig.6
Fig.8
Fig.10
6-1-4.Remove the indoor air temperature sensor
6-1-5.Remove the power box and control box
Fig.12
Fig.15 24
Fig.13
Fig.14
Screw Ground cable
6-1-6.Remove the main body lower section
Fig.17
Fig.18
Fig.19
6-1-8.Remove the drain pump and float switch
6-1-7.Remove the heat exchanger sensor
Fig.20
Fig.23
6-1-9.Remove the turbo fan and fan motor
6-1-10.Remove the heat exchanger
Fig.25
Emergency operation
7. FUNCTIONS
7-1.Operation Functions
AUTO cooling/heating operation
NIGHT SETBACK
HIGH POWER
Timer backup
Lamp colors
Freeze prevention
7-2.Protective Functions
Overload prevention during heating
Cold-airprevention during heating
8. TROUBLESHOOTING BEFORE CALLING FOR SERVICE
8-2.Method of Self-Diagnostics
PROCEDURE
HIGH POWER lamp
1 Self-diagnosticsLamps
TIMER lamp
REMOTE CONTROL receiver
Using the TEST/T-RUNterminals
8-3.Checking the Indoor and Outdoor Units
2If the self-diagnosticsfunction fails to operate
Check the indoor unit Is the fuse blown?
Before the Operation
3-1Condition: E01
Continued from the previous page A
3-2Condition: E12
Diagnostic procedure
8-4.Trouble Diagnosis of Fan Motor
8-4-1.Indoor Fan Motor
Diagnostic results
Locations most susceptible to noise
1 Noise malfunction
2 Electromagnetic interference
Trouble
Page
APPENDIX A
Operating Instructions
CS-MKE9NB4U& CZ-18BT1U CS-MKE12NB4U& CZ-18BT1U
CU-4KE31NBU
Split System Air Conditioner
CS-MKE9NB4U CU-3KE19NBU CS-MKE12NB4U CU-4KE24NBU
CZ-18BT1U
SAFETY PRECAUTIONS
FEATURES
CONTENTS
PRODUCT INFORMATION
ELECTRICAL REQUIREMENTS
INSTALLATION LOCATION
SAFETY INSTRUCTIONS
Avoid
Air Intake
NAMES OF PARTS
UNIT DISPLAY AND OPERATION BUTTON
Air Outlet
REMOTE CONTROLLER DISPLAY
Symbols
ON TIME/OFF TIME setting buttons Advance button
REMOTE CONTROLLER
HIGH POWER button
CANCEL button SENSOR button
AUTO
1 HR. TIMER button 1-HOUROFF TIMER
Temperature setting buttons TEMP
HEAT
S/M Single/Multiple switch
USING THE REMOTE CONTROLLER
HOW TO INSTALL BATTERIES
HOW TO USE THE REMOTE CONTROLLER
2. Manual Operation
OPERATION WITH THE REMOTE CONTROLLER
1. Automatic Operation
STEP STEP
4. Night Setback Mode
3. Adjusting the Fan Speed
5. HIGH POWER Mode
A. Automatic fan speed
Remote Controller
SETTING THE TIMER
Power failure during operation
1. How to set the present time
4. How to set daily ON/OFF repeat timer
2. How to set the OFF time
3. How to set the ON time
Operation
1. 1-HourOFF Timer
USING THE 1-HOUROFF TIMER
ADJUSTING THE AIRFLOW DIRECTION
TIPS FOR ENERGY SAVING
When the air conditioner is not running
CARE AND CLEANING
OPERATION WITHOUT THE REMOTE CONTROLLER
Cleaning the flaps
Safety cord Air filter
How to remove the filter
How to remove the air intake grille
Air intake grille hinge Safety cord
BEFORE CALLING FOR SERVICE
TROUBLESHOOTING
WIRED REMOTE CONTROLLER
OPERATING RANGE
Indoor Unit
SPECIFICATIONS
Model No
CS-MKE9NB4U
APPENDIX B
CS-KE18NB4UW& CZ-18BT1U
Operating Instructions
CS-KE18NB4UW
CS-KE12NB41
CU-KE12NK1
CU-KE18NKU
SAFETY PRECAUTIONS
FEATURES
CONTENTS
PRODUCT INFORMATION
ELECTRICAL REQUIREMENTS
INSTALLATION LOCATION
SAFETY INSTRUCTIONS
Avoid
Air Intake
NAMES OF PARTS
UNIT DISPLAY AND OPERATION BUTTON
Air Outlet
REMOTE CONTROLLER DISPLAY
Symbols
1Operation mode AUTO HEAT MILD DRY COOL FAN
ON TIME/OFF TIME setting buttons Advance button
REMOTE CONTROLLER
HIGH POWER button
CANCEL button SENSOR button
AUTO
1 HR. TIMER button 1-HOUROFF TIMER
Temperature setting buttons TEMP
HEAT
S/M Single/Multiple switch
USING THE REMOTE CONTROLLER
HOW TO INSTALL BATTERIES
HOW TO USE THE REMOTE CONTROLLER
2. Manual Operation
OPERATION WITH THE REMOTE CONTROLLER
1. Automatic Operation
STEP 1 Press the MODE selector button to
5. Night Setback Mode
6. HIGH POWER Mode
4. Fan Only
3. Adjusting the Fan Speed
Remote Controller
SETTING THE TIMER
Power failure during operation
1. How to set the present time
4. How to set daily ON/OFF repeat timer
2. How to set the OFF time
3. How to set the ON time
Operation
1. 1-HourOFF Timer
USING THE 1-HOUROFF TIMER
ADJUSTING THE AIRFLOW DIRECTION
TIPS FOR ENERGY SAVING
When the air conditioner is not running
CARE AND CLEANING
OPERATION WITHOUT THE REMOTE CONTROLLER
Cleaning the flaps
Safety cord Air filter
How to remove the filter
How to remove the air intake grille
Air intake grille hinge Safety cord
BEFORE CALLING FOR SERVICE
TROUBLESHOOTING
WIRED REMOTE CONTROLLER
OPERATING RANGE
Outdoor Unit
SPECIFICATIONS
Model No
Indoor Unit
•For Multiple use
SPECIFICATIONS CONTINUED
•For Multiple use
Model No
Page
INSTALLATION INSTRUCTIONS
APPENDIX C
3. HOW TO INSTALL THE INDOOR UNIT
Contents
For Indoor Unit
5.REMOTE CONTROLLER INSTALLATION
WARNING When Wiring
SPECIAL PRECAUTIONS
In Case of Improper Installation
When Transporting
When Servicing
Others
1-2.Accessories Supplied with Unit Table
1. General
1-1.Tools Required for Installation not supplied
1-3.Optional Copper Tubing Kit
AVOID
2. Installation Site Selection
2-1.Indoor Unit
Fig.
2-2.Embedding the Tubing and Wiring
Table
3-2.Suspending the Indoor Unit
3. How to Install the Indoor Unit
3-1.Preparation for Suspending
3-3.Placing the Unit Inside the Ceiling
Fig.
3-4.Installing the Drain Piping
Do not use natural drainage
Fig.
3-6-1.Before Installing the Ceiling Panel
utes after the FS 3P connector is reconnected
3-6.How to Install the Ceiling Panel
3-5.Checking the Drainage
Fig.
3-6-2.Installing the Ceiling Panel
Fig.
Fig.
Fig.
3-6-3.Wiring the Ceiling Panel and the Indicator
Fig.
A. Attaching the corner cover
3-7.Wiring Instructions
3-6-5.Checking After Installation
3-6-7.Adjusting the Auto Flap
General precautions on wiring
For stranded wiring
How to connect wiring to the terminal
For solid core wiring or F-cable
a For Indoor Unit
4. How to Test Run the Air Conditioner
Fig. Fig
Fig.
5-1.Mounting on a Wall
5. Remote Controller Installation Position
Rear side Remote control holder
Mounting screws 5/32 5/8 4 16 mm included
Fig.
6. Address Switch
6-1.Address Setting of the Remote Controller
Fig.
7. Connecting a Home Automation Device
8. Installation Check Sheet
APPENDIX D
CZ-RD515U
Operating Instructions
Operating Instructions Wired Remote Controller
Model No. CZ-RD515U
SAFETY PRECAUTIONS
FEATURES
CONTENTS
PRODUCT INFORMATION
ELECTRICAL REQUIREMENTS
INSTALLATION LOCATION
SAFETY INSTRUCTIONS
Avoid
Timer and Present Time setting buttons
REMOTE CONTROLLER
Temperature setting buttons TEMP
Display
AUTO
1 HR. TIMER button 1-HOUROFF TIMER
TIMER SELECT button
HEAT
REMOTE CONTROLLER DISPLAY
Symbols
1Operation mode AUTO only for COOL/DRY/HEAT Model
OPERATION WITH THE REMOTE CONTROLLER
1.Automatic Operation
only for COOL/DRY/HEAT Model
2. Manual Operation
Power failure during operation
Remote Controller Display
3. Adjusting the Fan Speed
Remote Controller
1. How to set the present time
5. Backup function
SETTING THE TIMER
2. How to set the OFF time
USING THE 1-HOUROFF TIMER
ADJUSTING THE AIRFLOW DIRECTION
1. 1-HourOFF Timer
Page
APPENDIX E
INSTALLATION INSTRUCTIONS
CZ-RD515U
Remote controller installation guidelines
INSTALLATION INSTRUCTIONS Wired Remote Controller
Parts supplied with the remote controller
How to install the remote controller
Fig. 2-a
A. Installing with in-walljunction box
B. Installing directly onto the wall
Fig. 2-b
Fig. 8-a
How to wire the remote controller
Fig.
Fig. 8-b
Fig.
How to Test Run the Air Conditioner
Fig.
Fig. WI1011-0 Printed in China
Page
DC1111-0
