Main
IMPORTANT
TECHNICAL & SERVICE MANUAL
CS-KS30NKU + CU-KS30NKUA CS-KS36NKU + CU-KS36NKUA
DC INVERTER SPLIT SYSTEM AIR CONDITIONER
Indoor Unit Outdoor Unit
CS-KS30NKU CS-KS36NKU CU-KS30NKUA CU-KS36NKUA
SAFETY PRECAUTIONS
Warning
Caution
Table of Contents
Page
1. OPERATING RANGE
2. SPECIFICATIONS
2-1. Unit Specifications
Outdoor Unit CU-KS30NKUA < 230V >
Outdoor Unit CU-KS30NKUA < 208V >
Outdoor Unit CU-KS36NKUA < 230V >
Outdoor Unit CU-KS36NKUA < 208V >
2-2. Major Component Specifications
2-2-1. Indoor Unit
Page
Outdoor Unit CU-KS30NKUA
2-2-2. Outdoor Unit
Outdoor Unit CU-KS36NKUA
2-3. Other Component Specifications
3. DIMENSIONAL DATA
Indoor Unit CS-KS30NKU CS-KS36NKU
Unit: inch(mm) (852-0-0010-196-00-0)
dia. 3-5/32
CU-KS36NKUA
Unit: inch(mm) (852-0-0010-194-00-1)
Indoor unit Outdoor unit
M
4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Indoor Unit CS-KS30NKU CS-KS36NKU
CU-KS36NKUA
5. PERFORMANCE DATA
5-1. Temperature Charts
Indoor discharge air temperature F(C) Low pressure at wide tube service valve
(3) Indoor discharge air performance chart
Indoor Unit CS-KS30NKU
Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V)
Indoor discharge air temperature F(C) Low pressure at wide tube service valve
(3) Indoor discharge air performance chart
(1) Low pressure performance chart
(2) Operating current performance chart
5-2. Cooling Capacity
Outdoor Unit : CU-KS36NKUA
Indoor Unit : CS-KS36NKU Power supply : 230V Single Phase 60Hz
< Cooling Capacity >
Outdoor Unit : CU-KS30NKUA
Indoor Unit : CS-KS30NKU Power supply : 230V Single Phase 60Hz
5-3. Cooling Capacity (Low Ambient)
< Cooling Capacity (Low Ambient) >
Page
5-4. Air Throw Distance Charts
Page
6. ELECTRICAL DATA
6-1. Electrical Characteristics
Indoor Unit CS-KS30NKU Outdoor Unit
Indoor Unit CS-KS36NKU Outdoor Unit
CONTROLLER
IND LAMP ASSY
8FA2-5251-12400-1
M
3 U2
2 U1
1
M
6-2. Electric Wiring Diagrams
CONTROL P.C.BOARD
BOARD
HIC
NOISE FILTER P.C. BOARD
8FA2-5251-15300-0
7. FUNCTIONS
7-1. Operation Functions
SENSOR DRY
HIGH POWER NIGHT SETBACK
Lamp colors
Timer backup
Noise Reducing Control (Outdoor Unit)
Maximum Current Value Change Function
Compressor discharge temperature control Freeze prevention
*
<
7-2. Protective Functions
CT (Peak current cut-off control)
>
8. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)
8-1. Precautions before Performing Inspection or Repair
Follow the procedure below to perform detailed trouble diagnostics.
NOTE
8-2. Method of Self-Diagnostics
(1) Self-diagnostics Lamps
Page
8-3. Checking the Indoor and Outdoor Units
(1) Checking the indoor unit
Using the TEST/T-RUN terminals
(2) Checking the outdoor unit
ControlNo. Check items (unit operation)
(3) Serial Communication Error Identification Procedure
Refer to "Method of Self-Diagnostics" for the self-diagnostics procedure.
CAUTION
(1)
Page
(3-2) Alarm Code : E07/P04/P05/P20/P27
8-4. Trouble Diagnosis of Fan Motor
8-4-1. Indoor Fan Motor
8-4-2. Outdoor Fan Motor
8-5. Noise Malfunction and Electromagnetic Interference
(1) Noise malfunction
(2) Electromagnetic interference
9. CHECKING ELECTRICAL COMPONENTS
9-1. Measurement of Insulation Resistance
9-1-1. Power Supply Cord
9-1-2. Indoor Unit
9-1-3. Outdoor Unit
Page
10. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT
10-1. Characteristics of New Refrigerant R410A
10-1-1. What is New Refrigerant R410A?
10-1-2. Components (mixing proportions)
10-1-3. Characteristics
10-2. Checklist before Servicing
10-3. Tools Specifically for R410A
10-4. Tubing Installation Procedures
10-5. In Case of Compressor Malfunction
10-5-1. Procedure for Replacing Compressor
NO!
10-6. In Case Refrigerant is Leaking
10-7. Charging Additional Refrigerant
10-8. Retro-Fitting Existing Systems
Page
Page
Split System Air Conditioner
Operating Instructions
2
FEATURES
CONTENTS
Page Page
PRODUCT INFORMATION
SAFETY PRECAUTIONS
INSTALLATION LOCATION
NOTICE
Avoid:
ELECTRICAL REQUIREMENTS
SAFETY INSTRUCTIONS
NAMES OF PARTS
UNIT DISPLAY AND OPERATION BUTTON
Air Intake
Air Outlet
Remote Controller
REMOTE CONTROLLER (DISPLAY)
REMOTE CONTROLLER
7
(DR Y) (COOL) (F AN)
8
USING THE REMOTE CONTROLLER
Hole
3.
HOW TO INSTALL BATTERIES
1.
OPERATION WITH THE REMOTE CONTROLLER
1. Operation 2. Adjusting the Fan Speed
A. Automatic fan speed
B. Manual fan speed
3. Fan Only
4. Night Setback Mode
In Cooling and DRY Mode: ( and )
5. QUIET Mode
6. HIGH POWER Mode
11
7. UNOCCUPIED Mode
In Cooling Mode: ( )
12
SPECIAL REMARKS
How it works?
Remote Controller
Clicking Sound
Clicking sound is heard from the air conditioner
2. How to set the OFF time
3. How to set the ON time
4. How to set daily ON/OFF repeat timer
1.
2.
USING THE 1-HOUR OFF TIMER
1. 1-Hour OFF Timer
CAUTION
2. Operation together with the daily ON/OFF repeat timer
TIPS FOR ENERGY SAVING
OPERATION WITHOUT THE REMOTE CONTROLLER
CARE AND CLEANING
16
Cleaning the main unit and Remote Controller
CAUTION
TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)
Front panel Arm
OPERATING RANGE
WIRED REMOTE CONTROLLER
SPECIFICATIONS
Page
Page
$/09(08*54+0:054,8;9,9:/,8,-80.,8(4:" >:,84(2+0(3,:,85-9,8<0*,658:"
Split System Air Conditioner
INSTALLATION INSTRUCTIONS
Contents
IMPORTANT! Please Read Before Starting
If Necessary, Get Help
In Case of Improper Installation
SPECIAL PRECAUTIONS
When Wiring
When Servicing
Others
NOTE
1. General
2. Installation Site Selection
NO
Page
Hole for anchor bolt (4-R1/4") / Anchor bolt : 3/8" or M101
1
4- 1/4"
2-2-3. Dimensions of Wind-proof Duct Reference diagram for CU-KS30NKUA, CU-KS36NKUA
Reference diagram for wind-proof duct (locally purchased): STK-DGV160E
Page
25-13/32" 3/32" 13-3/8" (11-15/16") 16-15/16" Air Intake
Air discharge
3-27/32"
2- 9/32"
2-2-4. Dimensions of Snow-proof Duct Reference diagram for CU-KS30NKUA, CU-KS36NKUA
Reference diagram for snow-proof duct (locally purchased): STK-BDV80E
2- 9/32"
2- 9/32"
9/32"
Page
Page
3. How to Install the Indoor Unit
Page
Page
Page
*
Page
Page
Page
Page
Page
4. How to Install the Outdoor Unit
Fig.46a Fig.46b
Fig.46d
Fig.46c
5. Refrigerant Tubing
Page
6. Air Purging
Page
Page
Page
7. Remote Controller Installation Position
8. Address Switch
