Contents
CS-KE30NKU + CU-KE30NKU CS-KE36NKU + CU-KE36NKU
Indoor Model No Product Code No
Outdoor Model No Product Code No
852 360
Safety Precautions
Prohibit
Table of Contents
Checking Electrical Components
Temperature Indoor Air Intake Temp Outdoor Air Intake Temp
Operating Range
Specifications
Unit Specifications
Indoor Unit
Outdoor Unit
208V
CS-KE36NKU
21.9 19.9
Indoor Unit
Major Component Specifications
Indoor Unit CS-KE30NKU
Indoor Unit CS-KE36NKU
CB-CS-KE36NKU
Outdoor Unit
Outdoor Unit CU-KE30NKU
Board
Compressor
Outdoor Unit CU-KE36NKU
Other Component Specifications
Dimensional Data
Inchmm 194-00-1 Unit
Refrigerant Flow Diagram
Refrigerant Flow Diagram
Indoor Unit CS-KE30NKU Outdoor Unit CU-KE30NKU
Indoor unit Outdoor unit
Temperature Charts
Performance Data
High pressure performance chart
Indoor Unit CS-KE36NKU Outdoor Unit CU-KE36NKU
Discharge 9535 8630 Indoor
Power Supply 230V Single Phase 60Hz Cooling Capacity
Cooling Capacity
CS-KE30NKU
CU-KE30NKU
34,000 BTU/h
Cooling Capacity Low Ambient
Outdoor
30,900 30,870 30,800 30,710 30,590 30,400 30,210
Heating Capacity
Power Supply 230V Single Phase 60Hz Heating Capacity
TH Total Heating Capacity BTU/h
36,000 BTU/h
Air Throw Distance Charts
Cooling
Electrical Characteristics
Electrical Data
Voltage230V Cooling
Heating
650
Electric Wiring Diagrams
8FA2-5251-12400-1
8FA2-5251-15200-0
Controller
Functions
Operation Functions
Emergency operation
Auto cooling/heating operation
Timer backup
Lamp colors
Noise Reducing Control Outdoor Unit
Switching Procedure to Noise Reducing Control
Operation Sound
Maximum Current Value Change Procedure
Maximum Current Value Change Function
Description of function
CU-KE36NKU
Compressor discharge temperature control
Protective Functions
Overload prevention during heating
Freeze prevention
CT Peak current cut-off control
Defrost detection and release
Reverse-Cycle Defrosting
Precautions before Performing Inspection or Repair
Troubleshooting Before Calling for Service
Method of Self-Diagnostics
Self-diagnostics Lamps
Diagnosis Contents
Replace the controller
Normal
Replace the circuit board or the fuse
Checking the Indoor and Outdoor Units
Using the TEST/T-RUN terminals
Checking the indoor unit Control Check items unit operation
Serial Communication Error Identification Procedure
Alarm Code E05
Off Blinking Illuminated
Before the Operation
From the previous page a
Alarm Code E07/P04/P05/P20/P27
Trouble Diagnosis of Fan Motor
Indoor Fan Motor
Outdoor Fan Motor
Pin 3 Gnd blue
Pin 1 Vcc brown
Pin 2 PG white
Noise Malfunction and Electromagnetic Interference
Noise malfunction
Electromagnetic interference
Locations most susceptible to noise Trouble Correction
Power Supply Cord
Checking Electrical Components
Measurement of Insulation Resistance
Measurement of Insulation Resistance for Electrical Parts
Checking Continuity of Fuse on PCB Assy
Refrigerant R410A Special Precautions When Servicing Unit
Characteristics of New Refrigerant R410A
What is New Refrigerant R410A?
Characteristics
Checklist before Servicing
Tubing Installation Procedures
Tools Specifically for R410A
Procedure for Replacing Compressor
Case of Compressor Malfunction
Configuration and characteristics of cylinders
Amount in the charging cylinder is less than 20%
Example
To prevent the composition
Welding leaking points
Case Refrigerant is Leaking
Recharging
When Tubes are Extended
Charging Additional Refrigerant
Retro-Fitting Existing Systems
Use of Existing Units
Appendix a Operating Instructions
CS-KE30NKU
CS-KE36NKU
Features
Contents
Safety Precautions
Product Information
Installation Location
Safety Instructions
Electrical Requirements
Avoid
Names of Parts
Unit Display and Operation Button
Remote Controller Display
Symbols
Remote Controller
HR. Timer button 1-HOUR OFF Timer
Temperature setting buttons Temp
Mode selector button
High Power button
Using the Remote Controller
ACL button
32 x 13/16
20 mm
Operation with the Remote Controller
Automatic Operation
Cooling and DRY Mode
Heating Mode
Automatic fan speed
Manual fan speed
High Power Mode
Unoccupied Indication Status
Special Remarks
Setting the Timer
Operation Indication
Tips for Energy Saving
Using the 1-HOUR OFF Timer
1030 pm 710 am 1100 am Present time
Adjusting the Airflow Direction
When the air conditioner is not running
How to replace the filter
Cleaning the main unit and Remote Controller
Removing and remounting the front panel
Washing the front panel with water
Operating Range
Wired Remote Controller
Trouble Possible Cause Remedy
Specifications
Model No Outdoor Unit Indoor Unit
Page
852-6-4190-587-00-0
Installation Instructions Split System Air Conditioner
Contents
Please Read Before Starting
Fins of the outdoor unit. You may get injured
Accidentally
Tools Required for Installation not supplied
Accessories Supplied with Unit Table
General
Optional Copper Tubing Kit
Installation Site Selection
Additional Materials Required for Installation
Solid base must not cover the hole of the bottom plate
Countermeasures against snow and wind
Precautions for Installation in a Snowy Area
$/,8,3?,4508-25= $/,04.3?-8,,D,4+89
Unit inch
4922054=0/041,9-*04.52,9
Required space around the outdoor unit
$/,-8544+5/90+,9398,30456,4
27-5/8 11-5/8 Air Intake 25/32 13/32 13-3/8 14-31/32
4522,8/4/,/,0./5-/,5+55840
#04.2,4004922054 9*2,9545/90+,9
Installation in front-rear rows
Obstacles to the front and rear of unit
#04.2,4004922054
9*2,9545/90+,9
How to Install the Indoor Unit
Trical wiring or conduits are
Remove the Rear Panel from the Unit
Make a Hole
Install the Rear Panel on the Wall
If Wooden Wall
If Block, Brick, Concrete or Similar Type Wall
Hole Dia
How to remove the grille
Removing and Installing the Grille
How to replace the grille
Wiring Instructions General precautions on wiring
Shape the Indoor Side Tubing
Wire Size and Length
Wiring Instructions for Inter-unit Connections
For Outdoor Unit For solid core wiring or F-cable
How to connect wiring to the terminal For Indoor Unit
For stranded wiring
Mounting
Right-side tubing
Left-side tubing
Switching drain hose and drain cap
Drain cap
Do not supply power to
Tubing and wiring to the out
To unmount indoor unit
Frame Fastening Method
How to Install the Outdoor Unit
Wiring Instructions for the Outdoor Unit
Routing the Tubing and Wiring
Cover B
Flaring Procedure with a Flare Tool
To 0.5 mm Adjust so that the amount of tube
Refrigerant Tubing
Use of the Flaring Method
Connecting Tubing between Indoor and Outdoor Units
Finishing the Installation
Insulation of Refrigerant Tubing
Taping the Tubes
Air Purging
Hex wrench before
Be sure to completely insert
Attempting to turn the valve
How to Test Run the Air Conditioner
Basic Functions of the Service Valves
Pump Down
Service Valve Connections
Remote Controller Installation Position
Address Switch
Address Setting of the Remote Controller
DC1111-0