Panasonic CS-KS30NKU, CU-KS36NKUA, CS-KS36NKU, CU-KS30NKUA User Manual

TECHNICAL & SERVICE MANUAL

CS-KS30NKU + CU-KS30NKUA

CS-KS36NKU + CU-KS36NKUA

DC INVERTER SPLIT SYSTEM AIR CONDITIONER

Indoor Model No.	Product Code No.
CS-KS30NKU	1 852 360 86
CS-KS36NKU	1 852 360 87

Outdoor Model No. Product Code No.

CU-KS30NKUA	1 852 360 84
CU-KS36NKUA	1 852 360 85

Indoor Unit				Outdoor Unit

CS-KS30NKU

CS-KS36NKU

CU-KS30NKUA

CU-KS36NKUA

IMPORTANT

These air conditioners employ new refrigerant R410A.

Pay special attention when servicing the unit.

REFERENCE NO. SM700875

SAFETY PRECAUTIONS

•Before doing repair work, please read the "SAFETY PRECAUTIONS" carefully and fully understand them.

•The precautionary items here are divided into "Warning" and "Caution" items.

Items in particular which may cause death or serious injury to the service personnel if the work is not performed correctly,

are included in the "Warning" table.

However, even precautionary items identified as " Caution" also have the potential for serious consequences if not performed correctly.

Important safety precautions are described for all items in both categories. Be sure to carefully follow all of them.

•Symbol Indication

: This symbol indicates items to which we need to pay attention. In this triangle, a definite precautionary item is described.

: This symbol indicates the item to be prohibited.

In or close to this circle, a prohibited item is described.

: This symbol indicates the items requiring special attention or instruction. In or close to this circle, a prohibited item is described.

•After doing repair work, perform a test run to confirm that there are no abnormalities. At the same time, explain the precautions in use to the user.

Warning

Before performing an overhaul, disconnect the power plug or power cable from the unit.

Performing the work with the power supplied to the unit, may cause an electric shock.

When repair work or circuit inspection that requires power supply for the air conditioner, is to be performed,
do not touch the charging section.
Doing so may cause an electric shock.	Prohibit

For the step-up capacitor attached to the electric section, perform the repair work after sufficiently discharging it. Insufficient capacitor discharge may cause an electric shock.

Do not perform repair work on the electric sections with wet hands.

Doing so may cause an electric shock.

Prohibit

Do not start or stop the air conditioner by means of connecting or disconnecting the power plug.

Doing so may cause an electric shock or fire.

Prohibit

When conducting repair work only use components included in the parts list for the corresponding unit and perform the work with the appropriate tools.

Incorrect or poor repair work may cause an electric shock or fire.

Never modify the unit.

Doing so may cause an electric shock or fire.

Prohibit

Perform all electric work according to local applicable regulations related to electrical equipment or interior wiring regulation and make sure to use the exclusive circuit.

Insufficient capacity to the electric circuit or defective arrangement results may cause an electric shock or fire.

Make sure to replace any power cable or lead wire showing any signs of scratch or deterioration.

Failure to do so may cause an electric shock, overheating or fire.

Make sure that there is no dust on or slack in the power plug and insert fully into the socket.

Dust or incomplete connections may cause an electric shock or fire.

Do not damage or process the power cord, as it may cause an electric shock or fire.

Prohibit

For the wiring between the indoor unit and outdoor unit, securely fix the specified cable onto the terminal plate. Poorly fixed wiring may cause a heat or fire.

After connecting the wiring between the indoor unit and outdoor unit, attach the terminal cover securely. Incomplete attachment of the terminal cover may cause overheating or fire.

2

Warning

If refrigerant gas blows off during the work, do not touch the refrigerant gas as it may cause frostbite.

Prohibit

If refrigerant gas leaks during the work, ventilate the room.

If refrigerant gas catches fire, harmful gas may be generated.

Do not mix any gas other than the specified refrigerant gas in the refrigerating cycle.
If air or other contaminants mix with the gas, pressure will become extremely high in the refrigerating cycle,
which may cause a unit breakdown."	Prohibit

When the welded section of the compressor intake or discharge pipe is to be disconnected, perform it in a well-ventilated place after sufficiently recovering the refrigerant gas.

Any residue gas may jet out refrigerant or refrigerating machine oil, which may cause an injury.

When the work is to be performed in a high place (About 2 meters or more), make sure to wear a safety helmet, gloves and safety belt. Insufficient safety gear may cause a serious injury in case of a fall.

When the unit is to be relocated, confirm that the new installation location has sufficient strength for the weight of the unit. Insufficient strength of the installation location and incomplete installation work may cause an injury due to

the unit falling.

When the remote controller batteries are replaced, dispose of the old batteries out of the reach of children. If a child swallows a battery, make sure that the child gets immediate medical attention.

Caution

Do not wash the air conditioner with water, as this may cause an electric shock or fire.

Prohibit

For the repair work in places with high humidity or moisture, make sure to ground the unit.

Failure to do so may cause an electric shock.

Confirm that the component attachment position, wiring condition, soldering condition and connector connection are normal.

If not, it may cause overheating or fire.

Confirm that the temperature around the compressor is not too high, and then perform the repair work. Failure to do so may cause a burn.

Perform welding work in a place with good ventilation.

If the work is performed in a poorly ventilated area, it might cause a lack of oxygen.

If the installation plate or attachment frame has deteriorated due to corrosion, etc., replace it.

Failure to do so may cause an injury due to the unit falling.

When the cleaning is to be performed, make sure to turn off the power and pull out the plug.

Touching the fan that is rotating at high speed may result in an injury.

When the indoor unit is to be removed, do not place it on an incline.

Doing so may cause wet furniture because water left inside may trickle down.

Prohibit

Do not hold the sharp end of the unit or the aluminum fins, as it may cause an injury to your hand or finger.

Prohibit

After repairs, make sure to measure the insulation resistance and confirm that the value is 1 Mohm or more. Any insulation error may cause an electric shock.

After repairs, make sure to check the drainage of the indoor unit.

Inappropriate drainage may cause wet furniture and floors due to water leakage.

3

		Table of Contents
			Page
	SAFETY PRECAUTIONS ..............................................................................................................		2
TABLE OF CONTENTS .....................................................................................................................			4
1.	OPERATING RANGE ...................................................................................................................		6
2.	SPECIFICATIONS
	2-1.	Unit Specifications .............................................................................................................	7
	2-2.	Major Component Specifications .......................................................................................	11
	2-3.	Other Component Specifications .......................................................................................	15
3.	DIMENSIONAL DATA .....................................................................................................................		16
4.	REFRIGERANT FLOW DIAGRAM
	4-1.	Refrigerant Flow Diagram ...................................................................................................	18
5.	PERFORMANCE DATA
	5-1.	Temperature Charts ............................................................................................................	19
	5-2.	Cooling Capacity ................................................................................................................	21
	5-3. Cooling Capacity (Low Ambient) ........................................................................................		23
	5-4.	Air Throw Distance Charts .................................................................................................	25
6.	ELECTRICAL DATA
	6-1.	Electrical Characteristics ....................................................................................................	27
	6-2.	Electric Wiring Diagrams ....................................................................................................	29
7.	FUNCTIONS
	7-1.	Operation Functions ...........................................................................................................	31
	7-2.	Protective Functions ...........................................................................................................	35
8. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)
	8-1. Precautions before Performing Inspection or Repair ...........................................................		36
	8-2.	Method of Self-Diagnostics .................................................................................................	36
	8-3. Checking the Indoor and Outdoor Units ..............................................................................		39
	8-4. Trouble Diagnosis of Fan Motor ...........................................................................................		43
	8-5.	Noise Malfunction and Electromagnetic Interference ..........................................................	45

4

			Page
9. CHECKING ELECTRICAL COMPONENTS
9-1.	Measurement of Insulation Resistance ...............................................................................		46
9-2.	Checking Continuity of Fuse on PCB Ass'y .........................................................................		47
10. REFRIGERANT R410A:
SPECIAL PRECAUTIONS WHEN SERVICING UNIT
10-1.	Characteristics of New Refrigerant R410A .........................................................................		48
10-2.	Checklist before Servicing ...................................................................................................		49
10-3.	Tools Specifically for R410A ................................................................................................		50
10-4.	Tubing Installation Procedures ............................................................................................		50
10-5.	In Case of Compressor Malfunction ....................................................................................		51
10-6.	In Case Refrigerant is Leaking ............................................................................................		53
10-7.	Charging Additional Refrigerant ..........................................................................................		54
10-8.	Retro-Fitting Existing Systems ............................................................................................		54
		Operating Instructions
APPENDIX A			A-1
		INSTALLAION INSTRUCTIONS
APPENDIX B			A-2

5

1. OPERATING RANGE

		Temperature	Indoor Air Intake Temp.	Outdoor Air Intake Temp.
	Cooling	Maximum	95 °F DB / 71 °F WB	115 °F DB
		Minimum	67 °F DB / 57 °F WB	0 °F DB

6

2. SPECIFICATIONS

2-1. Unit Specifications

Indoor Unit		CS-KS30NKU
Outdoor Unit CU-KS30NKUA											< 230V >
Voltage Rating								230V Single-Phase 60Hz
									Cooling
Performance
	Air Circulation (Hi/Me/Lo)				ft3/min (m3/h)			630 (1,070) / 530 (901) /412 (700)
	Total Capacity						BTU/h	30,600	( 10,900 to 30,600 )
							kW	9.0	( 3.2 to 9.0 )
	Sensible Capacity						BTU/h		18,600
	Latent Capacity						BTU/h		12,000
	Moisture Removal (High)						Pints/h		9.57
	Available Voltage Range						V		187 to 253
Rating	Running Amperes						A	16.5	( 5.0 to 16.5 )
	Power Input						W	3,290	( 1,000 to 3,290 )
Electrical	Power Factor						%			87
	Compressor Locked Rotor Amperes						A		31.0
	EER						BTU/h/W		9.30
	SEER						BTU/Wh		16.0
	Fuse or Circuit Breaker Capacity						A			35
	Controls / Temperature Control							Microprocessor / I.C. Thermister
	Control Unit							Wireless Remote Control Unit
	Timer							24-Hour ON or OFF Timer, 1-Hour OFF Timer
	Fan Speeds				Indoor / Outdoor			Auto and 3 steps / Auto (Hi, Me, Lo)
	Airflow Direction (Indoor)						Horizontal		Manual
							Vertical		Auto
Features	Air Filter							Washable, Anti-Mold
	Compressor							DC Twin Rotary (Inverter)
	Refrigerant / Amount charged at shipment						Ibs (g)	R410A / 6.5 (2,950)
	Refrigerant Control							Electric Expansion Valve
	Operation Sound			Indoor : Hi/Me/Lo/Qt*			dB-A	49 / 44 / 39 / 32
	(*Qt = Quiet mode)			Outdoor : Hi			dB-A			55
	Refrigerant Tubing Connections								Flare Type
	Max. allowable tubing length at shipment						ft (m)		164 (50)
	Refrigerant			Narrow tube			inch (mm)		3/8 (9.52)
	Tube Diameter			Wide tube			inch (mm)		5/8 (15.88)
	Refrigerant Tube Kit								Optional
Weight								Indoor Unit			Outdoor Unit
	Unit Dimensions						inch	11-13/16 σ 41-15/16 σ 9-1/16			35-13/16 σ 37-1/32 σ 13-3/8
&	Height σ Width σ Depth						(mm)	(300 σ 1,065 σ 230)			(910 σ 940 σ 340)
	Package Dimensions						inch	12-7/32 σ 44-7/8 σ 14-31/32			42-3/8 σ 40 σ 16-3/8
Dimensions
	Shipping Volume		σ Depth				cu.ft (m3)	4.59 (0.13)			15.88 (0.45)
	Height	σ Width					(mm)	(310 σ 1,140 σ 380)			(1,076 σ 1,016 σ 416)
	Weight			Net			Ibs (kg)	32.0 (14.5)			183.0 (83.0)
				Shipping			Ibs (kg)	39.7 (18.0)			205.0 (93.0)
								DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks: Rating conditions are:
	Cooling: Indoor air temperature				80 °F DB / 67 °F WB
		Outdoor air temperature			95 °F DB / 75 °F WB

7

Indoor Unit		CS-KS30NKU
Outdoor Unit CU-KS30NKUA											< 208V >
Voltage Rating								208V Single-Phase 60Hz
									Cooling
Performance
	Air Circulation (Hi/Me/Lo)				ft3/min (m3/h)			630 (1,070) / 530 (901) /412 (700)
	Total Capacity						BTU/h	30,600	( 10,900 to 30,600 )
							kW	9.0	( 3.2 to 9.0 )
	Sensible Capacity						BTU/h		18,600
	Latent Capacity						BTU/h		12,000
	Moisture Removal (High)						Pints/h		9.57
	Available Voltage Range						V		187 to 253
Rating	Running Amperes						A	18.0	( 5.0 to 18.0 )
	Power Input						W	3,290	( 1,000 to 3,290 )
Electrical	Power Factor						%			88
	Compressor Locked Rotor Amperes						A		31.0
	EER						BTU/h/W		9.30
	SEER						BTU/Wh		16.0
	Fuse or Circuit Breaker Capacity						A			35
	Controls / Temperature Control							Microprocessor / I.C. Thermister
	Control Unit							Wireless Remote Control Unit
	Timer							24-Hour ON or OFF Timer, 1-Hour OFF Timer
	Fan Speeds				Indoor / Outdoor			Auto and 3 steps / Auto (Hi, Me, Lo)
	Airflow Direction (Indoor)						Horizontal		Manual
							Vertical		Auto
Features	Air Filter							Washable, Anti-Mold
	Compressor							DC Twin Rotary (Inverter)
	Refrigerant / Amount charged at shipment						Ibs (g)	R410A / 6.5 (2,950)
	Refrigerant Control							Electric Expansion Valve
	Operation Sound			Indoor : Hi/Me/Lo/Qt*			dB-A	49 / 44 / 39 / 32
	(*Qt = Quiet mode)			Outdoor : Hi			dB-A			55
	Refrigerant Tubing Connections								Flare Type
	Max. allowable tubing length at shipment						ft (m)		164 (50)
	Refrigerant			Narrow tube			inch (mm)		3/8 (9.52)
	Tube Diameter			Wide tube			inch (mm)		5/8 (15.88)
	Refrigerant Tube Kit								Optional
Weight								Indoor Unit			Outdoor Unit
	Unit Dimensions						inch	11-13/16 σ 41-15/16 σ 9-1/16			35-13/16 σ 37-1/32 σ 13-3/8
&	Height σ Width σ Depth						(mm)	(300 σ 1,065 σ 230)			(910 σ 940 σ 340)
	Package Dimensions						inch	12-7/32 σ 44-7/8 σ 14-31/32			42-3/8 σ 40 σ 16-3/8
Dimensions
	Shipping Volume		σ Depth				cu.ft (m3)	4.59 (0.13)			15.88 (0.45)
	Height	σ Width					(mm)	(310 σ 1,140 σ 380)			(1,076 σ 1,016 σ 416)
	Weight			Net			Ibs (kg)	32.0 (14.5)			183.0 (83.0)
				Shipping			Ibs (kg)	39.7 (18.0)			205.0 (93.0)
								DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks: Rating conditions are:
	Cooling: Indoor air temperature				80 °F DB / 67 °F WB
		Outdoor air temperature			95 °F DB / 75 °F WB

8

Indoor Unit		CS-KS36NKU
Outdoor Unit CU-KS36NKUA											< 230V >
Voltage Rating								230V Single-Phase 60Hz
									Cooling
Performance
	Air Circulation (Hi/Me/Lo)				ft3/min (m3/h)			630 (1,070) / 530 (901) /412 (700)
	Total Capacity						BTU/h	34,000	( 10,900 to 34,000 )
							kW	10.0	( 3.2 to 10.0 )
	Sensible Capacity						BTU/h		20,700
	Latent Capacity						BTU/h		13,300
	Moisture Removal (High)						Pints/h		10.64
	Available Voltage Range						V		187 to 253
Rating	Running Amperes						A	20.0	( 5.0 to 20.0 )
	Power Input						W	4,000	( 1,000 to 4,000 )
Electrical	Power Factor						%			87
	Compressor Locked Rotor Amperes						A		31.0
	EER						BTU/h/W		8.50
	SEER						BTU/Wh		16.0
	Fuse or Circuit Breaker Capacity						A			45
	Controls / Temperature Control							Microprocessor / I.C. Thermister
	Control Unit							Wireless Remote Control Unit
	Timer							24-Hour ON or OFF Timer, 1-Hour OFF Timer
	Fan Speeds				Indoor / Outdoor			Auto and 3 steps / Auto (Hi, Me, Lo)
	Airflow Direction (Indoor)						Horizontal		Manual
							Vertical		Auto
Features	Air Filter							Washable, Anti-Mold
	Compressor							DC Twin Rotary (Inverter)
	Refrigerant / Amount charged at shipment						Ibs (g)	R410A / 6.5 (2,950)
	Refrigerant Control							Electric Expansion Valve
	Operation Sound			Indoor : Hi/Me/Lo/Qt*			dB-A	49 / 44 / 39 / 32
	(*Qt = Quiet mode)			Outdoor : Hi			dB-A			55
	Refrigerant Tubing Connections								Flare Type
	Max. allowable tubing length at shipment						ft (m)		164 (50)
	Refrigerant			Narrow tube			inch (mm)		3/8 (9.52)
	Tube Diameter			Wide tube			inch (mm)		5/8 (15.88)
	Refrigerant Tube Kit								Optional
Weight								Indoor Unit			Outdoor Unit
	Unit Dimensions						inch	11-13/16 σ 41-15/16 σ 9-1/16			35-13/16 σ 37-1/32 σ 13-3/8
&	Height σ Width σ Depth						(mm)	(300 σ 1,065 σ 230)			(910 σ 940 σ 340)
	Package Dimensions						inch	12-7/32 σ 44-7/8 σ 14-31/32			42-3/8 σ 40 σ 16-3/8
Dimensions
	Shipping Volume		σ Depth				cu.ft (m3)	4.59 (0.13)			15.88 (0.45)
	Height	σ Width					(mm)	(310 σ 1,140 σ 380)			(1,076 σ 1,016 σ 416)
	Weight			Net			Ibs (kg)	32.0 (14.5)			183.0 (83.0)
				Shipping			Ibs (kg)	39.7 (18.0)			205.0 (93.0)
								DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks: Rating conditions are:
	Cooling: Indoor air temperature				80 °F DB / 67 °F WB
		Outdoor air temperature			95 °F DB / 75 °F WB

9

Indoor Unit		CS-KS36NKU
Outdoor Unit CU-KS36NKUA											< 208V >
Voltage Rating								208V Single-Phase 60Hz
									Cooling
Performance
	Air Circulation (Hi/Me/Lo)				ft3/min (m3/h)			630 (1,070) / 530 (901) /412 (700)
	Total Capacity						BTU/h	34,000	( 10,900 to 34,000 )
							kW	10.0	( 3.2 to 10.0 )
	Sensible Capacity						BTU/h		20,700
	Latent Capacity						BTU/h		13,300
	Moisture Removal (High)						Pints/h		10.64
	Available Voltage Range						V		187 to 253
Rating	Running Amperes						A	21.9	( 5.0 to 21.9 )
	Power Input						W	4,000	( 1,000 to 4,000 )
Electrical	Power Factor						%			88
	Compressor Locked Rotor Amperes						A		31.0
	EER						BTU/h/W		8.50
	SEER						BTU/Wh		16.0
	Fuse or Circuit Breaker Capacity						A			45
	Controls / Temperature Control							Microprocessor / I.C. Thermister
	Control Unit							Wireless Remote Control Unit
	Timer							24-Hour ON or OFF Timer, 1-Hour OFF Timer
	Fan Speeds				Indoor / Outdoor			Auto and 3 steps / Auto (Hi, Me, Lo)
	Airflow Direction (Indoor)						Horizontal		Manual
							Vertical		Auto
Features	Air Filter							Washable, Anti-Mold
	Compressor							DC Twin Rotary (Inverter)
	Refrigerant / Amount charged at shipment						Ibs (g)	R410A / 6.5 (2,950)
	Refrigerant Control							Electric Expansion Valve
	Operation Sound			Indoor : Hi/Me/Lo/Qt*			dB-A	49 / 44 / 39 / 32
	(*Qt = Quiet mode)			Outdoor : Hi			dB-A			55
	Refrigerant Tubing Connections								Flare Type
	Max. allowable tubing length at shipment						ft (m)		164 (50)
	Refrigerant			Narrow tube			inch (mm)		3/8 (9.52)
	Tube Diameter			Wide tube			inch (mm)		5/8 (15.88)
	Refrigerant Tube Kit								Optional
Weight								Indoor Unit			Outdoor Unit
	Unit Dimensions						inch	11-13/16 σ 41-15/16 σ 9-1/16			35-13/16 σ 37-1/32 σ 13-3/8
&	Height σ Width σ Depth						(mm)	(300 σ 1,065 σ 230)			(910 σ 940 σ 340)
	Package Dimensions						inch	12-7/32 σ 44-7/8 σ 14-31/32			42-3/8 σ 40 σ 16-3/8
Dimensions
	Shipping Volume		σ Depth				cu.ft (m3)	4.59 (0.13)			15.88 (0.45)
	Height	σ Width					(mm)	(310 σ 1,140 σ 380)			(1,076 σ 1,016 σ 416)
	Weight			Net			Ibs (kg)	32.0 (14.5)			183.0 (83.0)
				Shipping			Ibs (kg)	39.7 (18.0)			205.0 (93.0)
								DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks: Rating conditions are:
	Cooling: Indoor air temperature				80 °F DB / 67 °F WB
		Outdoor air temperature			95 °F DB / 75 °F WB

10

2-2. Major Component Specifications

2-2-1. Indoor Unit

Indoor Unit		CS-KS30NKU
Control PCB
	Part No.				CB-CS-KS30NKU
	Controls				Microprocessor
	Control Circuit Fuse				250V 3A
Fan
	Type				Cross-Flow
	Q'ty ... Dia. and Length		inch (mm)		1 ... D3-15/16 / L32-1 (D100/L838)
Fan Motor
	Type				DC Motor
	Model ... Q'ty				SIC-41CVJ-D847-1 ... 1
	No. of Poles				8
	Rough Measure RPM (Cool)				1,370
	Nominal Output			W	47
	Coil Resistance			Ohm	-
	(Ambient Temp. 68 °F (20 °C))
	Safety Device
		Type			Internal Controller
		Over-Current Protection			Yes
		Over-Heat Protection			Yes
	Run Capacitor			Micro F	-
				VAC	-
Flap Motor
	Type				Stepping Motor
	Model				24BYJ48-1256
	Rating				DC 12V
	Coil Resistance			Ohm	Each Pair of Terminal : 200 +/- 7%
	(Ambient Temp. 77 °F (25 °C))
Heat Exchanger Coil
	Coil				Aluminum Plate Fin / Copper Tube
	Rows				1 and 2
	Fins Per inch				19.5
	Face Area			ft2 (m2)	4.55 (0.423)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

11

Indoor Unit		CS-KS36NKU
Control PCB
	Part No.				CB-CS-KS36NKU
	Controls				Microprocessor
	Control Circuit Fuse				250V 3A
Fan
	Type				Cross-Flow
	Q'ty ... Dia. and Length		inch (mm)		1 ... D3-15/16 / L32-1 (D100/L838)
Fan Motor
	Type				DC Motor
	Model ... Q'ty				SIC-41CVJ-D847-1 ... 1
	No. of Poles				8
	Rough Measure RPM (Cool)				1,370
	Nominal Output			W	47
	Coil Resistance			Ohm	-
	(Ambient Temp. 68 °F (20 °C))
	Safety Device
		Type			Internal Controller
		Over-Current Protection			Yes
		Over-Heat Protection			Yes
	Run Capacitor			Micro F	-
				VAC	-
Flap Motor
	Type				Stepping Motor
	Model				24BYJ48-1256
	Rating				DC 12V
	Coil Resistance			Ohm	Each Pair of Terminal : 200 +/- 7%
	(Ambient Temp. 77 °F (25 °C))
Heat Exchanger Coil
	Coil				Aluminum Plate Fin / Copper Tube
	Rows				1 and 2
	Fins Per inch				19.5
	Face Area			ft2 (m2)	4.55 (0.423)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

12

2-2-2. Outdoor Unit

Outdoor Unit CU-KS30NKUA

P.C.Board					Control P.C.B		Noise Filer P.C.B		H.I.C.Board
	Part No.				CR-C3082-F		POW-CH3082-B2		HIC-CH3072R-C1
	Controls				Microprocessor		-		-
	Circuit Fuse				400V 3.15A		250V 25A		-
Compressor
	Type					DC Twin Rotary (Hermetic)
	Compressor Model / Nominal Output					C-9RVN273H0H / 2,250W
	Compressor Oil ... Amount		Pints (cc)			FV68S ... 2.98 (1,400)
	Coil Resistance (Ambient Temp. 77 °F (25 °C)) Ohm						T - R : 0.169
							T - S : 0.169
							R - S : 0.169
	Safety Device
		CT (Peak current cut-off control)					Yes
		Compressor Discharge Temp. Control					Yes
		Operation cut-off control in abnormal ambient Temp.					Yes
		Overload Relay		Model			CS-7L110
			Operation Temp.		Open : 230 °F (110 °C), Close : 203 °F (95 °C)
	Run Capacitor			Micro F		-
				VAC		-
	Crankcase Heater						230V 30W
Fan
	Type						Propeller
	Q'ty ... Dia.		inch (mm)				1 ... D19-9/32 (D490)
Fan Motor
	Type						DC Motor
	Model ... Q'ty					SIC-71FW-D8120-4A ... 1
	No. of Poles					8
	Rough Measure RPM (Cool)					750
	Nominal Output			W		142
	Coil Resistance			Ohm
	(Ambient Temp. 68 °F (20 °C))					-
	Safety Device
		Type					Internal Controller
		OverCurrent Protection					Yes
		OverHeat Protection					Yes
	Run Capacitor			Micro F		-
				VAC		-
Heat Exchanger Coil
	Coil				Aluminum Plate Fin / Copper Tube
	Rows					2
	Fins per inch					21.2
	Face Area			ft2 (m2)		8.05 (0.748)
External Finish					Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

13

Outdoor Unit CU-KS36NKUA

P.C.Board					Control P.C.B		Noise Filer P.C.B		H.I.C.Board
	Part No.				CR-C3682-F		POW-CH3082-B2		HIC-CH3072R-C1
	Controls				Microprocessor		-		-
	Circuit Fuse				400V 3.15A		250V 25A		-
Compressor
	Type					DC Twin Rotary (Hermetic)
	Compressor Model / Nominal Output					C-9RVN273H0H / 2,500W
	Compressor Oil ... Amount		Pints (cc)			FV68S ... 2.98 (1,400)
	Coil Resistance (Ambient Temp. 77 °F (25 °C)) Ohm						T - R : 0.169
							T - S : 0.169
							R - S : 0.169
	Safety Device
		CT (Peak current cut-off control)					Yes
		Compressor Discharge Temp. Control					Yes
		Operation cut-off control in abnormal ambient Temp.					Yes
		Overload Relay		Model			CS-7L110
			Operation Temp.		Open : 230 °F (110 °C), Close : 203 °F (95°C)
	Run Capacitor			Micro F		-
				VAC		-
	Crankcase Heater						230V 30W
Fan
	Type						Propeller
	Q'ty ... Dia.		inch (mm)				1 ... D19-9/32 (D490)
Fan Motor
	Type						DC Motor
	Model ... Q'ty					SIC-71FW-D8120-4A ... 1
	No. of Poles					8
	Rough Measure RPM (Cool)					750
	Nominal Output			W		142
	Coil Resistance			Ohm
	(Ambient Temp. 68 °F (20 °C))					-
	Safety Device
		Type					Internal Controller
		OverCurrent Protection					Yes
		OverHeat Protection					Yes
	Run Capacitor			Micro F		-
				VAC		-
Heat Exchanger Coil
	Coil				Aluminum Plate Fin / Copper Tube
	Rows					2
	Fins per inch					21.2
	Face Area			ft2 (m2)		8.05 (0.748)
External Finish					Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

14

2-3. Other Component Specifications

Indoor Unit	CS-KS30NKU
	CS-KS36NKU
Outdoor Unit	CU-KS30NKUA
	CU-KS36NKUA

•Indoor air temp sensor

(Model:KTEC-35-135-1)

	10
ohm)(k	9
	7
Resistance	8
	6
	5
	4
	3
	2
	1
	0
		50		59		68		77		86		95		104
		(10)		(15)		(20)		(25)		(30)		(35)		(40)

Temperature °F (°C)

•Indoor heat exchanger sensor

(Model:PTM-D51H-S6-1)

•Compressor temp sensor

(Model:TKS335B)

	200
ohm)(k	180
	160
Resistance	140
	120
	100
	80
	60
	40
	20
	0
					50		68		86		104 122 140 158 176 194
	32
	(0)				(10) (20) (30) (40) (50) (60) (70) (80) (90)

Temperature °F (°C)

•Outdoor air temp sensor

(Model:TKS295B)

•Outdoor heat exchanger sensor

(Model:TKS334B)

•Heat sink temp sensor (HIC Board)

(Model:TKS316B)

ohm)	40
	35
(k	30
Resistance	25
	20
	15
	10
	5
	0
		-4	5	14		23		32		41		50		59		68
		(-20)(-15)(-10) (-5)						(0)		(5)		(10) (15) (20)

Temperature °F (°C)

15

3. DIMENSIONAL DATA

Indoor Unit CS-KS30NKU

CS-KS36NKU

25/32

5-9/16

4-9/16

5-27/32

1-9/32	2-3/4			Narrow tube dia. 3/8" (9.52)
2-3/32		1-3/32	Wide tube dia. 5/8" (15.88)
	7-23/32	1-27/32	25/32
			7-
		4-9/16
		11-13/16(300)		(3/32)
		2-3/4	5/16
			2-3/8	(230)
				9-1/16

41-15/16 (1065)

1-15/32

-3/32	7-7/8
9
	3-3/4
17-23/32

11/16-2 3/4-3

15-1/8

5-1/2

23/32	1-7/8
11-13/16

2-3/8

3-3/8 2-5/8

2-5/8

7/16

		5/32
	3	-
dia	.
	1-7/8
	5-3/16	16-11/32	17-21/32	22-3/8

16-11/32	17-5/16	19-9/16
6-7/32

5/32- 3 . dia

Unit: inch(mm) (852-0-0010-196-00-0)

16

Outdoor Unit CU-KS30NKUA

CU-KS36NKUA

			inch(mm) 194-00-1)
			Unit: 0010-
1-3/16	7/16	2-5/32	(852-0-

		holes.
2-ID:1-1/4 holes (holes for drain)	Of the 4-ID:1-1/4 holes, use 1 of 2 holes specified for drain use to install the port.	Use rubber plugs to seal the remaining 3	16-5/32	Refrigeranttubing joint (Liquid tube)	connectionFlare dia.3/8" (9.52)	Refrigeranttubing joint (Gas tube) connectionFlare dia.5/8" (15.88)
			14-31/32
			13-3/8(340)
			13/32
4-11/32
	-3/8	1/2		1/2
	2
25-31/32	2-15/16 2-15/16			37-1/32 (940)
	8-5/8
11/6	4-1/8
6-

1-1/32

11-13/32

17

21/32
31/32	4-3/4
19/32	6-23/32
1-3/16
1-27/32
	1-15/16
	2-25/32

2-3/8

4-11/32

14-11/32
13-9/32
1-3/16	4-11/32
1-27/32
	1-15/16
3/4	2-25/32
	3/8
	2-

23/32

35-13/16(910)

outlet	-out holes dia.1-3/8, 1-3/32, 7/8, 1/2)
Wiring	(knock
3/4		17/32
	3/8	2-
	3-

2-5/32

2-17/32

Wiring outlet (knock-out holes dia.1-3/8, 1-3/32, 7/8, 1/2)

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

Indoor Unit CS-KS30NKU	Outdoor Unit CU-KS30NKUA
CS-KS36NKU	CU-KS36NKUA

Indoor unit		Outdoor unit
	Wide tube
Wide tube	service	Sub	Main
	valve	Accumulator	Accumulator
O.D		Muffler
			High pressure
5/8"
(15.88 mm)			switch
			H.P.
Heat exchanger
	Narrow	Electric
		expansion
	tube
			valve
	service
Narrow tube			M
	valve

O.D.

Strainer

3/8"

(9.52 mm)

Compressor

Heat exchanger

Cooling cycle

18

5. PERFORMANCE DATA

5-1. Temperature Charts

Indoor Unit CS-KS30NKU

Outdoor Unit CU-KS30NKUA

Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V)

(1) Low pressure performance chart

servicevalve	psig(MPaG)	174								Lo fan			Hi Fan
		(1.2)
		159										(30°C)
		(1.1)									.86°F
										mp		°C)
tube										AirTe
		145								Indoor	°F	(27
		(1.0)									80
wide												°C)
											°F
		131										(24
											75
at		(0.9)
pressure		117
		(0.8)
		104
		(0.7)
Low
		-4	5	14	23	32	41	50	59	68	77	86	95	104
		(-20)	(-15)	(-10)	(-5)	(0)	(5)	(10)	(15)	(20)	(25)	(30)	(35)	(40)

Outdoor inlet air DB temp. °F(°C)

(2) Operating current performance chart

	28
	26									Lo fan			Hi Fan
(A)	24
	22
current
	20
	18
Operating
												°C)
	16										°F	(30
											.86	°C)
										mp
										irTe	°F	(27
	14								oor	A
											80	°C)
									Ind
											°F	(24
	12										75
	10
	-4	5	14	23	32	41	50	59	68		77	86	95	104
	(-20)	(-15)	(-10)	(-5)	(0)	(5)	(10)	(15)	(20)		(25)	(30)	(35)	(40)

Outdoor inlet air DB temp. °F(°C)

(3) Indoor discharge air performance chart

°F(°C)	64.4 (18)
									Lo fan				Hi Fan
	60.8 (16)
temperature	57.2 (14)										(30°C)
	53.6 (12)									86°F
										.
									emp
air									T		)
									Air
											(27°C
	50.0 (10)								Indoor
discharge
											F
										80°
	46.4 (8)										)
											(24°C
Indoor	42.8 (6)										F
										75°
	-4	5	14	23	32	41	50	59	68	77		86	95	104
	(-20)	(-15)	(-10)	(-5)	(0)	(5)	(10)	(15)	(20)	(25)		(30)	(35)	(40)

Outdoor inlet air DB temp. °F(°C)

NOTE

• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.

19

Indoor Unit CS-KS36NKU

Outdoor Unit CU-KS36NKUA

Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V)

(1) Low pressure performance chart

servicevalve	psig(MPaG)	174								Lo fan			Hi Fan
		(1.2)
		159
		(1.1)									.86°F	(30°C)
tube
		145
											AirTemp	°C)
		(1.0)								Indoor	80°F	(27
wide		131									75°F	(24°C)
		(0.9)
at
		117
pressure
		(0.8)
		104
		(0.7)
Low		-4	5	14	23	32	41	50	59	68	77	86	95	104
		(-20)	(-15)	(-10)	(-5)	(0)	(5)	(10)	(15)	(20)	(25)	(30)	(35)	(40)

Outdoor inlet air DB temp. °F(°C)

(2) Operating current performance chart

	28
	26									Lo fan			Hi Fan
(A)	24
	22
current
	20										°F	°C)
												(30
											.86
	18									Air	Temp	(27°C)
Operating
									Indoor		80°F
	16											(24°C)
											75°F
	14
	12
	10
	-4	5	14	23	32	41	50	59	68		77	86	95	104
	(-20)	(-15)	(-10)	(-5)	(0)	(5)	(10)	(15)	(20)		(25)	(30)	(35)	(40)

Outdoor inlet air DB temp. °F(°C)

(3) Indoor discharge air performance chart

°F(°C)	64.4 (18)
									Lo fan			Hi Fan
	60.8 (16)
temperature
	57.2 (14)
	53.6 (12)									(30°C)
air										.86°F
									emp
discharge	50.0 (10)								T
									Air
									Indoor	(27°C)
	46.4 (8)									80°F
										(24°C)
Indoor	42.8 (6)
										75°F
	-4	5	14	23	32	41	50	59	68	77	86	95	104
	(-20)	(-15)	(-10)	(-5)	(0)	(5)	(10)	(15)	(20)	(25)	(30)	(35)	(40)

Outdoor inlet air DB temp. °F(°C)

NOTE

• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.

20

5-2. Cooling Capacity

Indoor Unit	: CS-KS30NKU
Outdoor Unit	: CU-KS30NKUA
Power Supply : 230V Single Phase 60Hz
	< Cooling Capacity >
	RATING CAPACITY:			30,600 BTU/h			AIR FLOW RATE:				630 CFM
	INDOOR						OUTDOOR
	ENT. TEMP. oF (oC)					AMBIENT TEMP. oF (oC)
	WB		DB		65	75	85		95		105	115
					(18.3)	(23.9)	(29.4)		(35.0)		(40.6)	(46.1)
				TC	26,540	27,120	27,710		27,910		24,890	17,310
		72	(22.2)	SHC	19,190	19,430	19,800		19,920		18,330	14,660
	59	76	(24.4)	SHC	21,510	21,880	22,120		22,250		20,660	16,990
	(15.0)	80	(26.7)	SHC	23,960	24,330	24,570		24,690		23,100	17,310
		84	(28.9)	SHC	26,280	26,650	26,890		27,020		24,890	17,310
		88	(31.1)	SHC	26,540	27,120	27,710		27,910		24,890	17,310
				TC	31,580	30,910	30,160		29,630		25,270	17,560
		72	(22.2)	SHC	18,330	17,970	17,600		17,360		15,150	11,730
	63	76	(24.4)	SHC	20,660	20,290	19,920		19,680		17,480	14,050
	(17.2)	80	(26.7)	SHC	23,100	22,740	22,370		22,120		20,050	16,500
		84	(28.9)	SHC	25,430	25,060	24,690		24,450		22,370	17,560
		88	(31.1)	SHC	27,750	27,510	27,020		26,770		24,690	17,560
				TC	32,420	31,780	31,050		#	30,600	25,550	17,760
		72	(22.2)	SHC	15,150	14,790	14,420		14,300		12,100	8,920
	67	76	(24.4)	SHC	17,480	17,110	16,870		16,620		14,420	11,240
	(19.4)	80	(26.7)	SHC	19,920	19,560	19,310		19,070		16,870	13,690
		84	(28.9)	SHC	22,250	22,000	21,640		21,390		19,190	16,010
		88	(31.1)	SHC	24,570	24,330	23,960		23,710		21,510	17,760
				TC	33,130	32,540	31,840		31,490		25,710	17,880
		72	(22.2)	SHC	11,730	11,480	11,120		11,000		8,670	5,860
	71	76	(24.4)	SHC	14,050	13,810	13,440		13,320		11,120	8,310
	(21.7)	80	(26.7)	SHC	16,500	16,250	15,890		15,770		13,560	10,750
		84	(28.9)	SHC	18,820	18,580	18,330		18,210		15,890	13,070
		88	(31.1)	SHC	21,150	20,900	20,660		20,530		18,210	15,400
				TC	33,630	33,090	32,430		32,190		25,730	17,900
	75	76	(24.4)	SHC	10,750	10,510	10,260		10,140		7,940	5,370
	(23.9)	80	(26.7)	SHC	13,200	12,950	12,710		12,590		10,380	7,820
		84	(28.9)	SHC	15,520	15,280	15,030		15,030		12,710	10,140
		88	(31.1)	SHC	17,840	17,720	17,480		17,360		15,030	12,590
		TC	: Total	Cooling Capacity		(BTU/h)	SHC	:	Sensible Heat Capacity (BTU/h)

NOTE

1.Rating conditions (#) : Indoor Unit Entering Air Temp. 80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB

:Outdoor Ambient Temp. 95 °F (35 °C) DB

2.Above data does not take Freeze Prevention Protection during cooling operation into account. For this reason, the value may vary from the actual cooling characteristics.

3.Above data represents the value when the operation frequency of a compressor is fixed.

21

Indoor Unit : CS-KS36NKU

Outdoor Unit : CU-KS36NKUA

Power supply : 230V Single Phase 60Hz

< Cooling Capacity >

RATING CAPACITY:			34,000 BTU/h			AIR FLOW RATE:				630 CFM
INDOOR						OUTDOOR
ENT. TEMP. oF (oC)					AMBIENT TEMP. oF (oC)
WB		DB		65	75	85		95		105	115
				(18.3)	(23.9)	(29.4)		(35.0)		(40.6)	(46.1)
			TC	27,450	28,140	28,840		29,040		24,650	16,770
	72	(22.2)	SHC	19,680	20,050	20,410		20,530		18,210	14,420
59	76	(24.4)	SHC	22,000	22,370	22,740		22,860		20,530	16,740
(15.0)	80	(26.7)	SHC	24,450	24,820	25,180		25,300		22,980	16,770
	84	(28.9)	SHC	26,770	27,140	27,510		27,630		24,650	16,770
	88	(31.1)	SHC	27,450	28,140	28,840		29,040		24,650	16,770
			TC	35,010	34,360	33,600		33,100		24,850	16,910
	72	(22.2)	SHC	20,170	19,800	19,310		19,070		15,030	11,480
63	76	(24.4)	SHC	22,490	22,120	21,760		21,390		17,360	13,810
(17.2)	80	(26.7)	SHC	24,940	24,570	24,200		23,840		19,800	16,250
	84	(28.9)	SHC	27,260	26,890	26,530		26,280		22,120	16,910
	88	(31.1)	SHC	29,580	29,220	28,850		28,610		24,450	16,910
			TC	35,720	35,120	34,400		#	34,000	24,930	16,970
	72	(22.2)	SHC	16,620	16,380	16,010		15,890		11,730	8,670
67	76	(24.4)	SHC	19,070	18,700	18,330		18,210		14,180	11,000
(19.4)	80	(26.7)	SHC	21,510	21,150	20,900		20,660		16,620	13,440
	84	(28.9)	SHC	23,840	23,590	23,230		22,980		18,940	15,770
	88	(31.1)	SHC	26,160	25,920	25,550		25,300		21,270	16,970
			TC	36,270	35,710	35,040		34,780		24,870	16,950
	72	(22.2)	SHC	13,070	12,830	12,460		12,340		8,430	5,610
71	76	(24.4)	SHC	15,400	15,150	14,790		14,790		10,750	7,940
(21.7)	80	(26.7)	SHC	17,840	17,600	17,360		17,230		13,200	10,380
	84	(28.9)	SHC	20,170	19,920	19,680		19,560		15,520	12,710
	88	(31.1)	SHC	22,490	22,250	22,000		21,880		17,840	15,030
			TC	36,560	36,070	35,450		34,630		24,680	16,830
75	76	(24.4)	SHC	11,850	11,610	11,360		11,120		7,570	5,130
(23.9)	80	(26.7)	SHC	14,300	14,050	13,810		13,560		10,020	7,570
	84	(28.9)	SHC	16,620	16,500	16,250		15,890		12,340	9,900
	88	(31.1)	SHC	18,940	18,820	18,580		18,210		14,660	12,220
	TC	: Total	Cooling Capacity		(BTU/h)	SHC	:	Sensible Heat Capacity (BTU/h)

NOTE

1.Rating conditions (#) : Indoor Unit Entering Air Temp. 80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB

:Outdoor Ambient Temp. 95 °F (35 °C) DB

2.Above data does not take Freeze Prevention Protection during cooling operation into account. For this reason, the value may vary from the actual cooling characteristics.

3.Above data represents the value when the operation frequency of a compressor is fixed.

22

5-3. Cooling Capacity (Low Ambient)

Indoor Unit : CS-KS30NKU

Outdoor Unit : CU-KS30NKUA

Power supply : 230V Single Phase 60Hz

< Cooling Capacity (Low Ambient) >

RATING CAPACITY:			30,600 BTU/h				AIR FLOW RATE:				630 CFM
INDOOR							OUTDOOR
ENT. TEMP. oF (oC)							AMBIENT TEMP. oF (oC)
WB		DB		0		5	15	25		35	45	55
				(-17.8)		(-15.0)	(-9.4)	(-3.9)		(1.7)	(7.2)	(12.8)
			TC	30,120		30,060	29,930	29,780		29,590	29,330	29,070
	72	(22.2)	SHC	21,150		21,150	21,020	23,230		20,780	20,660	20,530
59	76	(24.4)	SHC	23,470		23,470	23,350	25,550		23,230	22,980	22,860
(15.0)	80	(26.7)	SHC	25,920		25,920	25,790	27,870		25,670	25,430	25,300
	84	(28.9)	SHC	28,240		28,240	28,120	29,780		27,990	27,870	27,630
	88	(31.1)	SHC	30,120		30,060	29,930	29,780		29,590	29,330	29,070
			TC	30,390		30,360	30,270	30,170		30,040	29,820	29,610
	72	(22.2)	SHC	17,720		17,720	17,600	23,230		17,480	17,360	17,360
63	76	(24.4)	SHC	20,050		20,050	19,920	25,550		19,800	19,800	19,680
(17.2)	80	(26.7)	SHC	22,490		22,490	22,370	27,870		22,370	22,250	22,120
	84	(28.9)	SHC	24,820		24,820	24,820	30,170		24,690	24,570	24,450
	88	(31.1)	SHC	27,140		27,140	27,140	30,170		27,020	26,890	26,770
			TC	30,490		30,480	30,450	30,400		30,330	30,160	30,020
	72	(22.2)	SHC	14,180		14,180	14,180	23,230		14,180	14,050	14,050
67	76	(24.4)	SHC	16,500		16,500	16,500	25,550		16,500	16,380	16,380
(19.4)	80	(26.7)	SHC	19,070		18,940	18,940	27,870		18,940	18,820	18,820
	84	(28.9)	SHC	21,390		21,390	21,390	30,200		21,270	21,150	21,150
	88	(31.1)	SHC	23,710		23,710	23,710	30,400		23,590	23,590	23,470
			TC	30,370		30,380	30,410	30,430		30,420	30,310	30,250
	72	(22.2)	SHC	10,510		10,510	10,510	23,230		10,630	10,510	10,510
71	76	(24.4)	SHC	12,950		12,950	12,950	25,550		12,950	12,830	12,830
(21.7)	80	(26.7)	SHC	15,400		15,400	15,400	27,870		15,400	15,280	15,280
	84	(28.9)	SHC	17,720		17,720	17,720	30,200		17,720	17,720	17,600
	88	(31.1)	SHC	20,050		20,050	20,050	30,430		20,050	20,050	20,050
			TC	30,030		30,080	30,170	30,240		30,310	30,250	30,270
75	76	(24.4)	SHC	9,410		9,410	9,410	25,550		9,530	9,530	9,530
(23.9)	80	(26.7)	SHC	11,850		11,850	11,850	27,870		11,970	11,970	11,970
	84	(28.9)	SHC	14,180		14,180	14,300	30,200		14,300	14,300	14,300
	88	(31.1)	SHC	16,500		16,620	16,620	30,240		16,620	16,620	16,620
	TC	: Total	Cooling Capacity			(BTU/h)		SHC : Sensible Heat Capacity (BTU/h)

NOTE

1.Above data does not take Freeze Prevention Protection during cooling operation into account. For this reason, the value may vary from the actual cooling characteristics.

2.Above data represents the value when the operation frequency of a compressor is fixed.

23

Indoor Unit : CS-KS36NKU

Outdoor Unit : CU-KS36NKUA

Power supply : 230V Single Phase 60Hz

< Cooling Capacity (Low Ambient) >

RATING CAPACITY:			34,000 BTU/h				AIR FLOW RATE:				630 CFM
INDOOR							OUTDOOR
ENT. TEMP. oF (oC)							AMBIENT TEMP. oF (oC)
WB		DB		0		5	15	25		35	45	55
				(-17.8)		(-15.0)	(-9.4)	(-3.9)		(1.7)	(7.2)	(12.8)
			TC	30,900		30,870	30,800	30,710		30,590	30,400	30,210
	72	(22.2)	SHC	21,510		21,510	21,510	23,230		21,390	21,270	21,150
59	76	(24.4)	SHC	23,960		23,840	23,840	25,550		23,710	23,590	23,470
(15.0)	80	(26.7)	SHC	26,400		26,400	26,280	27,870		26,160	26,040	25,920
	84	(28.9)	SHC	28,730		28,730	28,610	30,200		28,480	28,480	28,360
	88	(31.1)	SHC	30,900		30,870	30,800	30,710		30,590	30,400	30,210
			TC	31,010		31,010	30,990	30,950		30,890	30,750	30,620
	72	(22.2)	SHC	17,970		17,970	17,970	23,230		17,970	17,840	17,840
63	76	(24.4)	SHC	20,410		20,410	20,290	25,550		20,290	20,170	20,170
(17.2)	80	(26.7)	SHC	22,860		22,860	22,740	27,870		22,740	22,610	22,610
	84	(28.9)	SHC	25,180		25,180	25,180	30,200		25,060	25,060	24,940
	88	(31.1)	SHC	27,510		27,510	27,510	30,950		27,380	27,380	27,260
			TC	30,910		30,940	30,980	31,000		31,010	30,930	30,880
	72	(22.2)	SHC	14,420		14,420	14,420	23,230		14,420	14,420	14,420
67	76	(24.4)	SHC	16,740		16,740	16,740	25,550		16,740	16,740	16,740
(19.4)	80	(26.7)	SHC	19,190		19,190	19,190	27,870		19,190	19,190	19,190
	84	(28.9)	SHC	21,510		21,510	21,640	30,200		21,640	21,510	21,510
	88	(31.1)	SHC	23,840		23,960	23,960	31,000		23,960	23,960	23,840
			TC	30,570		30,620	30,730	30,820		30,910	30,900	30,930
	72	(22.2)	SHC	10,630		10,630	10,750	23,230		10,750	10,750	10,750
71	76	(24.4)	SHC	12,950		12,950	13,070	25,550		13,070	13,070	13,070
(21.7)	80	(26.7)	SHC	15,400		15,400	15,520	27,870		15,520	15,520	15,520
	84	(28.9)	SHC	17,720		17,840	17,840	30,200		17,970	17,970	17,970
	88	(31.1)	SHC	20,170		20,170	20,170	30,820		20,290	20,290	20,290
			TC	30,010		30,090	30,260	30,430		30,590	30,650	30,770
75	76	(24.4)	SHC	9,410		9,410	9,530	25,550		9,650	9,650	9,650
(23.9)	80	(26.7)	SHC	11,850		11,850	11,970	27,870		12,100	12,100	12,100
	84	(28.9)	SHC	14,180		14,180	14,300	30,200		14,420	14,420	14,420
	88	(31.1)	SHC	16,500		16,620	16,620	30,430		16,740	16,740	16,870
	TC	: Total	Cooling Capacity			(BTU/h)		SHC : Sensible Heat Capacity (BTU/h)

NOTE

1Above data does not take freeze prevention protection during cooling operation into account. For this reason, the value may vary from the actual cooling characteristics.

2 Above data represents the value when the operation frequency of a compressor is fixed.

24

5-4. Air Throw Distance Charts

Indoor Unit CS-KS30NKU

Room air temp. : 80°F (26.7°C)

Cooling

Fan speed

: High

Horizontal distance (ft.)

		0	5	10		15	20	25	30
		0
velocity (ft./sec.)	distance (ft.)	5
Axis air	Vertical	10
		15
				: Flap angle 0	,		: Axis air velocity 0

					: Flap angle 30 ,				: Axis air velocity 30

25

Indoor Unit CS-KS36NKU

Room air temp. : 80°F (26.7°C)

Cooling

Fan speed

: High

Horizontal distance (ft.)

		0	5	10		15	20	25	30
		0
velocity (ft./sec.)	distance (ft.)	5
Axis air	Vertical	10
		15		: Flap angle 0	,		: Axis air velocity 0

					: Flap angle 30 ,				: Axis air velocity 30

26

6. ELECTRICAL DATA
6-1. Electrical Characteristics
Indoor Unit	CS-KS30NKU
Outdoor Unit	CU-KS30NKUA

(1) Voltage:230V
Cooling						< 230V >
				Indoor	UnitOutdoor Unit	Complete Unit
				Fan Motor	Fan Motor + Compressor
Performance at					230V Single-phase 60Hz
Rating conditions		Running amp.	A	0.4	16.1	16.5
		Power input	W	39	3,251	3,290
Rating conditions:	Indoor air temperature:		80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB
	Outdoor air temperature:		95 °F (35 °C) DB
(2) Voltage:208V
Cooling						< 208V >
				Indoor	UnitOutdoor Unit	Complete Unit
				Fan Motor	Fan Motor + Compressor
Performance at					208V Single-phase 60Hz
Rating conditions		Running amp.	A	0.4	17.6	18.0
		Power input	W	39	3,251	3,290
Rating conditions:	Indoor air temperature:		80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB
	Outdoor air temperature:		95 °F (35 °C) DB

27

Indoor Unit	CS-KS36NKU
Outdoor Unit CU-KS36NKUA
(1) Voltage:230V
Cooling							< 230V >
					Indoor	UnitOutdoor Unit	Complete Unit
					Fan Motor	Fan Motor + Compressor
Performance at						230V Single-phase 60Hz
Rating conditions			Running amp.	A	0.4	19.6	20.0
			Power input	W	39	3,961	4,000
Rating conditions:		Indoor air temperature:		80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB
		Outdoor air temperature:		95 °F (35 °C) DB
(2) Voltage:208V
Cooling							< 208V >
					Indoor	UnitOutdoor Unit	Complete Unit
					Fan Motor	Fan Motor + Compressor
Performance at						208V Single-phase 60Hz
Rating conditions			Running amp.	A	0.4	21.5	21.9
			Power input	W	39	3,961	4,000
Rating conditions:		Indoor air temperature:		80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB
		Outdoor air temperature:		95 °F (35 °C) DB

28

6-2. Electric Wiring Diagrams
Indoor Unit	CS-KS30NKU
	CS-KS36NKU
										TERMINAL BASE
										BLK		1		UNIT
										WHT		2
										RED		U1		OUTDOOR
	GRN/YEL											3
	EVAPORATOR		GND									U2		TO
						+		+		+			GND
	M	YEL	3	3	AC IN COM					SI	3	3	BLK	3 3	ASSY
					FLAP
		RED	1	1							1	1	WHT	1 1
		ORG	2	2							2	2	BLK	2 2
		PNK	4	4	5P (WHT)						4	4	BLK	4 4	LAMP
										9P (WHT)LAMP
			5								7	7	BLK	7 7
	FLAP MOTOR	BLU		5							5	5	BLK	5 5
											6	6	BLK	6 6
											8	8	BLK	8 8	IND
		GRN	1	1	GND						9	9	BLK	9 9
			2	2	2P (WHT)
	PL ELEC J-B				CONTROLLER									OPERATION SW
		RED	1	1						COIL	1	1	BLK
			2	2						2P (WHT)	2	2	BLK
	M		3	3	DCM									COIL THERMISTOR
		BLK	4	4
		WHT	5	5	7P (WHT)
		YEL	6	6
		BLU	7	7										ROOM THERMISTOR
	FAN MOTOR
											1	1
				1									BLK
										ROOM/UV	2	2	BLK
				2	S-LINK (RAC)					4P (WHT)	3	3
				3	4P (BLU)						4	4
				4			T10
						6P (BLU)
					1	2	3	4	5	6
														8FA2-5251-12400-1
									29

																																									Unit Outdoor
																																			HEAT SINK (RADIATOR)					CU	CU
	TERMINAL (5P)																																							- -
INDOOR																																								KS36NKUA	KS30NKUA
	1	BLK																																		BRIDGE DIODE
UNIT			WHT
	2	WHT
	3		RED																												AC1 +			BLK		+
						w AC IN1
POWER	4		BLK								NOISE FILTER P.C. BOARD
SUPPLY	5		WHT			w AC IN2																									AC2 +			WHT		+
																														DC+ +						+	+
GND																																		YEL
																															DC-	+		BLU		+	-
							E1	E2		CT		ACOUT			DCOUT				PRY			L1	L2		L3	L4	C1	C2		HIC+ HIC-
										(BRN)		(ORG)			(WHT)			(GRN)
							w	w		1	2	1	3		1	3			1	2		+	+		+	+	+		+	+	+
										1	2	1	3		1	3			1	2
							GRN	GRN		WHT	WHT	BLK WHT			BLK WHT					WHT		BLK	WHT		BLK	WHT	BLK		WHT
																			BLK															GRY
																											C1							YEL
																																								TH1
																							REACTOR
																																1	1	WHT	1	1		+	+
																																					HIC+		HIC-
30																																2	2	BLK	2	2				YEL YEL
																																4	4	BLK	4	4
																																3	3	BLK	3	3
																															HIC1	5 5		BLK	5	5	CN01		TH01	1
																														(WHT)		6 6		BLK	6	6	(WHT)		(YEL)	2
																																7	7	BLK	7	7
																																8	8	BLK	8	8	HIC
																																9	9	BLK	9	9
																																1010		BLK	1010
										1	2	1	3		1	3			1	2												1	1	BLK	1	1	BOARD
																																2	2	BLK	2	2
			w		w					1	2	1	3		1	3			1	2			1	2	3							3	3		3	3
										(BRN)		(ORG)			(WHT)			(GRN)					(WHT)									4	4	BLK	4	4
			SI	S-COM
										CT		ACIN			DCIN				PRY				TEST/MV									5	5	BLK	5	5
																														(WHT)HIC2							(WHT)CN02
	1 1	WHT	w CH1																													6 6		BLK	6	6
	1 1	WHT	w CH2						CONTROL P.C.BOARD																							7	7		7	7
																																8	8	BLK	8	8
																																9	9		9	9
	WHT WHT																															1010		BLK	1010		U	V	W
			(RED)			(RED)			(WHT)					(BLK)				(WHT)				(YEL)						(BLK)		(RED)		1111		BLK	1111
																																					+	+	+
				FM2		FM1				MV				COIL				COMP			OUTDOOR							HP-SW		OLR
15300-5251-8FA2
			1	2	3	1	3	1	2	3	4	5		1	2			1	2			1	2					1	2	1	2
			1	2	3	1	3	1	2	3	4	5		1	2			1	2			1	2					1	2	1	2						RED	WHT	BLU
			BRN WHT ORG			RED	BLU	ORG RED YEL			BLK	GRY	THERMISTORCOIL	YEL YEL		COMPRESSOR	THERMISTOR	BLK BLK			OUTDOOR THERMISTOR	BLK BLK					HIGH SWPRESSURE	RED RED		WHT WHT
CRANKCASE
HEATER																																		OVER LOAD RELAY
																																					R S T
					M					M																												M	GRN/YEL
																																						3
			FAN MOTOR					MAGNETIC COIL																													COMPRESSOR
																																					MOTOR
0-