Sanyo KS1271 Technical & Service Manual

IMPORTANT

These air conditioners employ new

refrigerant R410A.

Pay special attention when

servicing the unit.

TECHNICAL & SERVICE MANUAL

KS0971 + C0971

+ CL0971

KS1271 + C1271

+ CL1271

DC INVERTER SPLIT SYSTEM AIR CONDITIONER

Indoor Unit

FILE NO.

Destination: North America

Outdoor Model No.

C0971

C1271

CL0971

CL1271

Product Code No.

1 852 330 23

1 852 330 24

1 852 330 25

1 852 330 26

Outdoor Unit

KS0971

KS1271

C0971

C1271

CL0971

CL1271

REFERENCE NO. SM700655-01

Indoor Model No.

KS0971

KS1271

Product Code No.

1 852 099 81

1 852 099 82

A

I

R

C

O

N

DITIONER

When Wiring

ELECTRICAL SHOCK CAN CAUSE

SEVERE PERSONAL INJURY OR DEATH.

ONLY A QUALIFIED, EXPERIENCED

ELECTRICIAN SHOULD ATTEMPT TO

WIRE THIS SYSTEM.

SPECIAL PRECAUTIONS

This symbol refers to a hazard

or unsafe practice which can

result in severe personal

injury or death.

This symbol refers to a hazard

or unsafe practice which can

result in personal injury or

product or property damage.

CAUTION

WARNING

Important!

Please Read Before Starting

This air conditioning system meets strict safety and operating

standards. As the installer or service person, it is an

important part of your job to install or service the system so it

operates safely and efficiently.

For safe installation and trouble-free operation, you must:

Carefully read this instruction booklet before beginning.

Follow each installation or repair step exactly as shown.

Observe all local, state, and national electrical codes.

Pay close attention to all warning and caution notices given

in this manual.

If Necessary, Get Help

These instructions are all you need for most installation

sites and maintenance conditions. If you require help for

a special problem, contact our sales/service outlet or

your certified dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for

improper installation or maintenance service, including

failure to follow the instructions in this document.

Do not supply power to the unit until all wiring and tubing

are completed or reconnected and checked.

Highly dangerous electrical voltages are used in this

system. Carefully refer to the wiring diagram and these

instructions when wiring. Improper connections and

inadequate grounding can cause accidental injury or death.

Ground the unit following local electrical codes.

Connect all wiring tightly. Loose wiring may cause

overheating at connection points and a possible fire

hazard.

When Transporting

Be careful when picking up and moving the indoor and

outdoor units. Get a partner to help, and bend your knees

when lifting to reduce strain on your back. Sharp edges or thin

aluminum fins on the air conditioner can cut your fingers.

When Installing

In a Ceiling or Wall

Make sure the ceiling/wall is strong enough to hold the unit’s

weight. It may be necessary to construct a strong wood or

metal frame to provide added support.

In a Room

Properly insulate any tubing run inside a room to prevent

"sweating" that can cause dripping and water damage to walls

and floors.

In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a

solid, level foundation for the outdoor unit. This prevents water

damage and abnormal vibration.

In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal

frame. Provide a suitable air baffle.

In a Snowy Area (for Heat Pump-type Systems)

Install the outdoor unit on a raised platform that is higher than

drifting snow. Provide snow vents.

When Connecting Refrigerant Tubing

Use the flare method for connecting tubing.

Apply refrigerant lubricant to the matching surfaces of the

flare and union tubes before connecting them, then tighten

the nut with a torque wrench for a leak-free connection.

Check carefully for leaks before starting the test run.

When Servicing

Tu rn the power off at the main power box (mains) before

opening the unit to check or repair electrical parts and

wiring.

Keep your fingers and clothing away from any moving parts.

Clean up the site after you finish, remembering to check

that no metal scraps or bits of wiring have been left inside

the unit being serviced.

Others

Ventilate any enclosed areas when installing or testing the

refrigeration system. Escaped refrigerant gas, on contact

with fire or heat, can produce dangerously toxic gas.

Confirm upon completing installation that no refrigerant gas

is leaking. If escaped gas comes in contact with a stove,

gas water heater, electric room heater or other heat source,

it can produce dangerously toxic gas.

•

2

Table of Contents

1. OPERATING RANGE

2. SPECIFICATIONS

2-1. Unit Specifications

2-2. Major Component Specifications

2-3. Other Component Specifications

3. DIMENSIONAL DATA

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

5. PERFORMANCE DATA

5-1. Temperature Charts

5-2. Air Throw Distance Charts

6. ELECTRICAL DATA

6-1. Electrical Characteristics

6-2. Electric Wiring Diagrams

7. INSTALLATION INSTRUCTIONS

7-1. Installation Site Selection

7-2. Recommended Wire Length and Diameter

7-3. Remote Control Unit Installation Position

7-4. How to Test Run the Air Conditioner

7-5. Remove the Grille to Install the Indoor Unit

8. MAINTENANCE

8-1. Address Setting of the Remote Control Unit

8-2. Disconnecting and Connecting Positive Connector for Outdoor Unit

9. FUNCTIONS

9-1. Operation Functions

9-2. Protective Functions

5

6

10

16

17

19

20

24

26

28

31

33

34

35

36

37

38

39

41

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Page

3

10. TROUBLESHOOTING

10-1. Precautions before Performing Inspection or Repair

10-2. Method of Self-Diagnostics

10-3. Checking the Indoor and Outdoor Units

10-4. Trouble Diagnosis of Fan Motor

10-5. Noise Malfunction and Electromagnetic Interference

11. CHECKING ELECTRICAL COMPONENTS

11-1. Measurement of Insulation Resistance

11-2. Checking Continuity of Fuse on PCB Ass'y

12. REFRIGERANT R410A:

SPECIAL PRECAUTIONS WHEN SERVICING UNIT

12-1. Characteristics of New Refrigerant R410A

12-2. Checklist before Servicing

12-3. Tools Specifically for R410A

12-4. Tubing Installation Procedures

12-5. In Case of Compressor Malfunction

12-6. In Case Refrigerant is Leaking

12-7. Charging Additional Refrigerant

12-8. Retro-Fitting Existing Systems

APPENDIX INSTRUCTION MANUAL

42

45

46

47

48

49

50

51

52

53

55

56

57

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Page

4

95 °F D.B. / 71 °F W.B.

67 °F D.B. / 57 °F W.B.

1. OPERATING RANGE

Maximum

Minimum

115 °F D.B.

67 °F D.B.

Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.

Cooling

95 °F D.B. / 71 °F W.B.

67 °F D.B. / 57 °F W.B.

Maximum

Minimum

115 °F D.B.

0 °F D.B.

Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.

Cooling

Models : KS0971 + C0971

KS1271 + C1271

Models : KS0971 + CL0971

KS1271 + CL1271

5

6

2. SPECIFICATIONS

2-1. Unit Specifications

Indoor Unit KS0971

Outdoor Unit C0971

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks: Rating conditions are:

Cooling: Indoor air temperature 80°F D.B. / 67°F W.B.

Outdoor air temperature 95°F D.B. / 75°F W.B.

( 3,000 to 9,000 )

Sensible Capacity

Latent Capacity

Air Circulation (High)

SEER

Height x Width x Depth

Shipping Volume

BTU/Wh

20

Voltage Rating

Pints/h

Total Capacity

ft

3

/min (m

3

/h)

Performance

%

Power Factor

Features

Compressor Locked Rotor Amperes

A

Fuse or Circuit Breaker Capacity

A

Controls / Temperature Control

Control Unit

Microprocessor / I.C. Thermister

Wireless Remote Control Unit

Manual

Auto

Timer

Indoor / Outdoor

Fan Speeds

24-Hour ON or OFF Timer, 1-Hour OFF Timer

Auto and 3 steps / Auto (Hi, Me, Lo)

Airflow Direction (Indoor)

Horizontal

R410A / 2.09 (950)

Electric Expansion Valve

Washable, Anti-Mold

DC Rotary (Inverter)

Flare Type

25 (7.5)

34 / 31 / 28 / 23

46

1/4 (6.35)

3/8 (9.52)

Optional / Air Clean Filter

11-7/32 x 32-15/32 x 7-7/16

21-9/16 x 28-11/32 x 10-7/16

Moisture Removal (High)

W

Power Input

V

A

Available Voltage Range

Running Amperes

Electrical Rating

20

Dimensions & Weight

(*Qt = Quiet mode)

Refrigerant Tubing Connections

Refrigerant Tube Kit / Accessories

Refrigerant

Tube Diameter

Outdoor Unit

Indoor Unit

ft. (m)

lb. (kg)

Unit Dimensions

Package Dimensions

Weight

(mm)

Max. allowable tubing length at shipment

Outdoor : Hi

inch (mm)

Wide tube

Vertical

dB-A

Air Filter

Operation Sound

Compressor

Refrigerant / Amount charged at shipment

lb. (g)

Refrigerant Control

cu.ft (m

3

)

Indoor : Hi/Me/Lo/Qt*

Shipping

inch

(mm)

inch

Net

Narrow tube

16

Cooling

kW

BTU/h

115V Single-Phase 60Hz

282 (480)

3.4

Cooling

104 to 126

(285 x 825 x 189)

(548 x 720 x 265)

( 0.9 to 2.65 )

9,000

2.65

86

( 2.5 to 7.6 )

( 250 to 755 )

7.6

755

(255 x 900 x 350)

(600 x 856 x 362)

10-1/32 x 35-7/16 x 13-25/32

23-5/8 x 33-11/16 x 14-1/4

19.8

(9.0)

72.8

(33.0)

24.3

(11.0)

79.4

(36.0)

2.82

(0.08)

6.35

(0.18)

BTU/h

7,650

1,350

7

Indoor Unit KS1271

Outdoor Unit C1271

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks: Rating conditions are:

Cooling: Indoor air temperature 80°F D.B. / 67°F W.B.

Outdoor air temperature 95°F D.B. / 75°F W.B.

( 3,000 to 11,900 )

Sensible Capacity

Latent Capacity

Air Circulation (High)

SEER

Height x Width x Depth

Shipping Volume

81.6

cu.ft (m

3

)

2.82

(0.08)

6.35

Net

lb. (kg)

19.8

lb. (kg)

24.3

11-7/32 x 32-15/32 x 7-7/16

21-9/16 x 28-11/32 x 10-7/16

(mm)

(285 x 825 x 189)

(548 x 720 x 265)

inch

Indoor Unit

Outdoor Unit

16

Cooling

104 to 126

87

( 2.5 to 10.9 )

( 250 to 1,090 )

10.9

1,090

3.5

( 0.9 to 3.5 )

294 (500)

4.26

9,100

2,800

Cooling

BTU/h

115V Single-Phase 60Hz

Voltage Rating

Total Capacity

11,900

(mm)

Shipping

Narrow tube

Wide tube

Dimensions & Weight

Package Dimensions

inch

Weight

Operation Sound

Compressor

Refrigerant / Amount charged at shipment

lb. (g)

Refrigerant Control

Indoor : Hi/Me/Lo/Qt*

Unit Dimensions

20

(*Qt = Quiet mode)

Refrigerant Tubing Connections

Refrigerant Tube Kit / Accessories

Refrigerant

Tube Diameter

ft. (m)

Optional / Air Clean Filter

Flare Type

Electrical Rating

Moisture Removal (High)

W

Power Input

V

A

Available Voltage Range

Running Amperes

Pints/h

25 (7.5)

1/4 (6.35)

3/8 (9.52)

Max. allowable tubing length at shipment

Outdoor : Hi

inch (mm)

dB-A

Airflow Direction (Indoor)

Horizontal

R410A / 2.43 (1,100)

Washable, Anti-Mold

DC Rotary (Inverter)

Vertical

Air Filter

Timer

Indoor / Outdoor

Fan Speeds

24-Hour ON or OFF Timer, 1-Hour OFF Timer

Auto and 3 steps / Auto (Hi, Me, Lo)

Controls / Temperature Control

Control Unit

Microprocessor / I.C. Thermister

Wireless Remote Control Unit

%

Power Factor

Features

Compressor Locked Rotor Amperes

A

Fuse or Circuit Breaker Capacity

A

BTU/Wh

ft

3

/min (m

3

/h)

Performance

kW

BTU/h

20

36 / 33 / 29 / 25

47

Manual

Auto

Electric Expansion Valve

(37.0)

(0.18)

23-5/8 x 33-11/16 x 14-1/4

(255 x 900 x 350)

(600 x 856 x 362)

(9.0)

75.0

(34.0)

10-1/32 x 35-7/16 x 13-25/32

(11.0)

8

Indoor Unit KS0971

Outdoor Unit CL0971

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks: Rating conditions are:

Cooling: Indoor air temperature 80°F D.B. / 67°F W.B.

Outdoor air temperature 95°F D.B. / 75°F W.B.

( 3,000 to 9,000 )

Sensible Capacity

Latent Capacity

Air Circulation (High)

SEER

Height x Width x Depth

Shipping Volume

Features

Performance

Electrical Rating

Moisture Removal (High)

Pints/h

Total Capacity

ft

3

/min (m

3

/h)

kW

%

20

86

20

BTU/Wh

A

Power Factor

16

Timer

Indoor / Outdoor

Fan Speeds

Microprocessor / I.C. Thermister

Wireless Remote Control Unit

24-Hour ON or OFF Timer, 1-Hour OFF Timer

Auto and 3 steps / Auto (Hi and multi steps)

DC Rotary (Inverter)

Manual

Auto

Compressor Locked Rotor Amperes

A

Fuse or Circuit Breaker Capacity

Airflow Direction (Indoor)

Horizontal

Controls / Temperature Control

Control Unit

25 (7.5)

R410A / 2.09 (950)

Electric Expansion Valve

34 / 31 / 28 / 23

46

Flare Type

Power Input

V

A

Available Voltage Range

Running Amperes

W

Washable, Anti-Mold

Unit Dimensions

(*Qt = Quiet mode)

Refrigerant Tubing Connections

Refrigerant Tube Kit / Accessories

Refrigerant

Tube Diameter

Max. allowable tubing length at shipment

Outdoor : Hi

Narrow tube

Wide tube

Shipping

ft. (m)

inch (mm)

inch

(mm)

inch (mm)

Dimensions & Weight

Vertical

dB-A

Air Filter

Indoor : Hi/Me/Lo/Qt*

Operation Sound

Compressor

Refrigerant / Amount charged at shipment

lb. (g)

Refrigerant Control

BTU/h

115V Single-Phase 60Hz

9,000

Voltage Rating

BTU/h

Cooling

104 to 126

Cooling

2.65

( 0.9 to 2.65 )

7,650

1,350

282 (480)

(255 x 900 x 350)

(600 x 856 x 362)

23-5/8 x 33-11/16 x 14-1/4

1/4 (6.35)

3/8 (9.52)

Optional / Air Clean Filter

Indoor Unit

Outdoor Unit

(36.0)

(0.18)

(9.0)

72.8

(33.0)

3.4

11-7/32 x 32-15/32 x 7-7/16

21-9/16 x 28-11/32 x 10-7/16

(mm)

(285 x 825 x 189)

(548 x 720 x 265)

( 2.5 to 7.6 )

( 250 to 755 )

7.6

755

Package Dimensions

inch

10-1/32 x 35-7/16 x 13-25/32

Weight

Net

lb. (kg)

19.8

lb. (kg)

24.3

(11.0)

79.4

cu.ft (m

3

)

2.82

(0.08)

6.35

9

Indoor Unit KS1271

Outdoor Unit CL1271

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks: Rating conditions are:

Cooling: Indoor air temperature 80°F D.B. / 67°F W.B.

Outdoor air temperature 95°F D.B. / 75°F W.B.

( 3,000 to 11,900 )

Sensible Capacity

Latent Capacity

Air Circulation (High)

SEER

Height x Width x Depth

Shipping Volume

BTU/h

Electrical Rating

Moisture Removal (High)

Pints/h

ft

3

/min (m

3

/h)

Microprocessor / I.C. Thermister

Wireless Remote Control Unit

%

20

16

87

20

BTU/Wh

A

Power Factor

Features

Compressor Locked Rotor Amperes

A

Fuse or Circuit Breaker Capacity

Control Unit

Timer

Indoor / Outdoor

Fan Speeds

24-Hour ON or OFF Timer, 1-Hour OFF Timer

Auto and 3 steps / Auto (Hi and multi steps)

Washable, Anti-Mold

DC Rotary (Inverter)

Manual

Auto

Flare Type

25 (7.5)

R410A / 2.43 (1,100)

Electric Expansion Valve

36 / 33 / 29 / 25

47

1/4 (6.35)

3/8 (9.52)

Optional / Air Clean Filter

11-7/32 x 32-15/32 x 7-7/16

21-9/16 x 28-11/32 x 10-7/16

Refrigerant Tubing Connections

Power Input

V

A

Available Voltage Range

Running Amperes

W

Airflow Direction (Indoor)

Horizontal

Controls / Temperature Control

Vertical

dB-A

Air Filter

Operation Sound

Compressor

Refrigerant / Amount charged at shipment

lb. (g)

Refrigerant Control

Shipping

Narrow tube

Wide tube

Refrigerant Tube Kit / Accessories

Refrigerant

Unit Dimensions

Package Dimensions

Tube Diameter

Indoor : Hi/Me/Lo/Qt*

inch

(mm)

ft. (m)

Max. allowable tubing length at shipment

Outdoor : Hi

inch (mm)

(*Qt = Quiet mode)

Cooling

115V Single-Phase 60Hz

Voltage Rating

Performance

294 (500)

4.26

Cooling

104 to 126

( 0.9 to 3.5 )

(37.0)

(0.18)

(9.0)

75.0

(34.0)

(255 x 900 x 350)

(600 x 856 x 362)

10-1/32 x 35-7/16 x 13-25/32

23-5/8 x 33-11/16 x 14-1/4

Total Capacity

BTU/h

11,900

kW

3.5

9,100

BTU/h

2,800

Dimensions & Weight

Indoor Unit

Outdoor Unit

( 2.5 to 10.9 )

( 250 to 1,090 )

10.9

1,090

(mm)

(285 x 825 x 189)

(548 x 720 x 265)

Weight

Net

lb. (kg)

19.8

lb. (kg)

24.3

(11.0)

81.6

cu.ft (m

3

)

2.82

(0.08)

6.35

10

2-2. Major Component Specifications

2-2-1. Indoor Unit

Indoor Unit KS0971

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Open

o

F (

o

C)

Close

o

F (

o

C)

Micro F

VAC

4.5

266 (130)

-

250

Thermal Fuse

Aluminum Plate Fin / Copper Tube

2

19.5

Face Area

ft

2

(m

2

)

2.02 (0.188)

Coil

Rows

Fins per inch

Heat Exchanger Coil

Microprocessor

250V 3A

Control Circuit Fuse

Controls

1 ... D3-11/16 / L24-31/32 (D94/L634)

RCS-4VPIS4U

Fan

Cross-Flow

Remote Control Unit

(Ambient Temp. 77

o

F (25

o

C ))

Each Pair of Terminal : 400 +/- 7%

Control PCB

CB-KS0971

Part No.

Fan Motor

BRN - WHT : 57.9

RED - WHT : 55.2

MP24Z3

DC 12V

Coil Resistance

Ohm

Safety Device

Rating

Type

Model

Operating Temp.

(Ambient Temp. 68

o

F (20

o

C))

Nominal Output

W

Coil Resistance

Ohm

Q'ty ... Dia. and Length

inch (mm)

Type

16

1,200

Model ... Q'ty

No. of Poles

IBH-884-076 ... 1

4

Flap Motor

Type

Stepping Motor

Rough Measure RPM (Cool)

Run Capacitor

Type

AC Motor

11

Indoor Unit KS1271

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Open

o

F (

o

C)

Close

o

F (

o

C)

Micro F

VAC

4.5

266 (130)

-

250

Thermal Fuse

Aluminum Plate Fin / Copper Tube

2

19.5

Face Area

ft

2

(m

2

)

2.02 (0.188)

Coil

Rows

Fins per inch

Heat Exchanger Coil

Microprocessor

250V 3A

Control Circuit Fuse

Controls

1 ... D3-11/16 / L24-31/32 (D94/L634)

RCS-4VPIS4U

Fan

Cross-Flow

Remote Control Unit

(Ambient Temp. 77

o

F (25

o

C ))

Each Pair of Terminal : 400 +/- 7%

Control PCB

CB-KS1271

Part No.

Fan Motor

BRN - WHT : 57.9

RED - WHT : 55.2

MP24Z3

DC 12V

Coil Resistance

Ohm

Safety Device

Rating

Type

Model

Operating Temp.

(Ambient Temp. 68

o

F (20

o

C))

Nominal Output

W

Coil Resistance

Ohm

Q'ty ... Dia. and Length

inch (mm)

Type

16

1,250

Model ... Q'ty

No. of Poles

IBH-884-076 ... 1

4

Flap Motor

Type

Stepping Motor

Rough Measure RPM (Cool)

Run Capacitor

Type

AC Motor

12

2-2-2. Outdoor Unit

Outdoor Unit C0971

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Pints (cc)

Ohm U - V : 0.81

V - W : 0.81

W - U : 0.81

CT (Peak current cut-off control)

Compressor Discharge Temp. Control

Operation cut-off control in abnormal ambient Temp.

Model

Operation Temp.

Micro F

VAC

RED - WHT : 77.5

WHT - BLU : 77.5

BLU - RED : 77.5

Type

Over- Current Protection

Micro F

VAC

Coil Resistance (Ambient Temp. 68

o

F (20

o

C))

External Finish

Acrylic baked-on enamel finish

DC Rotary (Hermetic)

G4C090LU1ER / 900W

FV50S ... 0.68 (320)

Yes

Safety Device

Yes

-

Run Capacitor

CS-7L115

Open : 239

o

F(115

o

C), Close : 203

o

F(95

o

C)

Overload Relay

-

Yes

-

Internal Controller

Aluminum Plate Fin / Copper Tube

2

18.1

Face Area

ft

2

(m

2

)

3.10 (0.288)

Coil

Rows

Fins per inch

Heat Exchanger Coil

Microprocessor

125V 25A

Control Circuit Fuse

Controls

1 ... D15 -3/4 (D400)

Fan

Propeller

(Ambient Temp. 68

o

F (20

o

C))

DAJ12-55J71-CU ... 1

Control PCB

CB-C0971

Part No.

Fan Motor

Type

Compressor Model / Nominal Output

Compressor Oil ... Amount

-

Yes

8

Nominal Output

Coil Resistance

50

750 / 750

Safety Device

Rough Measure RPM (Cool)

Run Capacitor

Type

Model ... Q'ty

No. of Poles

W

Ohm

DC Motor

Q'ty ... Dia.

Compressor

inch (mm)

Type

Crankcase Heater

13

Outdoor Unit C1271

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Pints (cc)

Ohm U - V : 0.81

V - W : 0.81

W - U : 0.81

CT (Peak current cut-off control)

Compressor Discharge Temp. Control

Operation cut-off control in abnormal ambient Temp.

Model

Operation Temp.

Micro F

VAC

RED - WHT : 77.5

WHT - BLU : 77.5

BLU - RED : 77.5

Type

Over- Current Protection

Micro F

VAC

Coil Resistance (Ambient Temp. 68

o

F (20

o

C))

External Finish

Acrylic baked-on enamel finish

DC Rotary (Hermetic)

G4C090LU1ER / 900W

FV50S ... 0.68 (320)

Yes

Safety Device

Yes

-

Run Capacitor

CS-7L115

Open : 239

o

F(115

o

C), Close : 203

o

F(95

o

C)

Overload Relay

-

Yes

-

Internal Controller

Aluminum Plate Fin / Copper Tube

2

18.1

Face Area

ft

2

(m

2

)

3.95 (0.367)

Coil

Rows

Fins per inch

Heat Exchanger Coil

Microprocessor

125V 25A

Control Circuit Fuse

Controls

1 ... D15 -3/4 (D400)

Fan

Propeller

(Ambient Temp. 68

o

F (20

o

C))

DAJ12-55J71-CU ... 1

Control PCB

CB-C1271

Part No.

Fan Motor

Type

Compressor Model / Nominal Output

Compressor Oil ... Amount

-

Yes

8

Nominal Output

Coil Resistance

50

750 / 750

Safety Device

Rough Measure RPM (Cool)

Run Capacitor

Type

Model ... Q'ty

No. of Poles

W

Ohm

DC Motor

Q'ty ... Dia.

Compressor

inch (mm)

Type

Crankcase Heater

14

Outdoor Unit CL0971

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Pints (cc)

Ohm U - V : 0.81

V - W : 0.81

W - U : 0.81

CT (Peak current cut-off control)

Compressor Discharge Temp. Control

Operation cut-off control in abnormal ambient Temp.

Model

Operation Temp.

Micro F

VAC

RED - WHT : 77.5

WHT - BLU : 77.5

BLU - RED : 77.5

Type

Over- Current Protection

Micro F

VAC

DC Motor

Q'ty ... Dia.

Compressor

inch (mm)

Type

Crankcase Heater

Safety Device

Rough Measure RPM (Cool)

Run Capacitor

Type

Model ... Q'ty

No. of Poles

W

Ohm

8

Nominal Output

Coil Resistance

50

750 / 750

Control PCB

CB-CL0971

Part No.

Fan Motor

Type

Compressor Model / Nominal Output

Compressor Oil ... Amount

-

115V 20W

Yes

Heat Exchanger Coil

Microprocessor

125V 25A

Control Circuit Fuse

Controls

1 ... D15 -3/4 (D400)

Fan

Propeller

(Ambient Temp. 68

o

F (20

o

C))

DAJ12-55J71-CU ... 1

Face Area

ft

2

(m

2

)

3.10 (0.288)

Coil

Rows

Fins per inch

-

Yes

-

Internal Controller

Aluminum Plate Fin / Copper Tube

2

18.1

Run Capacitor

CS-7L115

Open : 239

o

F(115

o

C), Close : 203

o

F(95

o

C)

Overload Relay

Coil Resistance (Ambient Temp. 68

o

F (20

o

C))

External Finish

Acrylic baked-on enamel finish

DC Rotary (Hermetic)

G4C090LU1ER / 900W

FV50S ... 0.68 (320)

Yes

Safety Device

Yes

-

15

Outdoor Unit CL1271

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Pints (cc)

Ohm U - V : 0.81

V - W : 0.81

W - U : 0.81

CT (Peak current cut-off control)

Compressor Discharge Temp. Control

Operation cut-off control in abnormal ambient Temp.

Model

Operation Temp.

Micro F

VAC

RED - WHT : 77.5

WHT - BLU : 77.5

BLU - RED : 77.5

Type

Over- Current Protection

Micro F

VAC

DC Motor

Q'ty ... Dia.

Compressor

inch (mm)

Type

Crankcase Heater

Safety Device

Rough Measure RPM (Cool)

Run Capacitor

Type

Model ... Q'ty

No. of Poles

W

Ohm

8

Nominal Output

Coil Resistance

50

750 / 750

Control PCB

CB-CL1271

Part No.

Fan Motor

Type

Compressor Model / Nominal Output

Compressor Oil ... Amount

-

115V 20W

Yes

Heat Exchanger Coil

Microprocessor

125V 25A

Control Circuit Fuse

Controls

1 ... D15 -3/4 (D400)

Fan

Propeller

(Ambient Temp. 68

o

F (20

o

C))

DAJ12-55J71-CU ... 1

Face Area

ft

2

(m

2

)

3.95 (0.367)

Coil

Rows

Fins per inch

-

Yes

-

Internal Controller

Aluminum Plate Fin / Copper Tube

2

18.1

Run Capacitor

CS-7L115

Open : 239

o

F(115

o

C), Close : 203

o

F(95

o

C)

Overload Relay

Coil Resistance (Ambient Temp. 68

o

F (20

o

C))

External Finish

Acrylic baked-on enamel finish

DC Rotary (Hermetic)

G4C090LU1ER / 900W

FV50S ... 0.68 (320)

Yes

Safety Device

Yes

-

2-3. Other Component Specifications

Indoor Unit KS0971

KS1271

Outdoor Unit C0971 C1271

CL0971 CL1271

0

32 50 68 86 104 122 140 158 176 194

(0) (10) (20) (30) (40) (50) (60) (70) (80) (90)

40

60

80

100

120

140

160

180

200

20

50

1

0

2

3

4

5

6

7

8

9

10

59 68 77 86 95 104

(10) (15) (20) (25) (30) (35) (40)

Indoor air temp sensor

(Model:PTM-D51H-S3 TH2)

Indoor heat exchanger sensor

(Model:PTM-D51H-S3 TH1)

Compressor temp sensor

(Model:DTN-TKS274Y TH2)

Resistance (k ohm)

Temperature °F (°C)

Outdoor air temp sensor

(Model:DTN-TKS269B)

Outdoor heat exchanger sensor

(Model:DTN-TKS274Y TH1)

40

35

30

25

20

15

10

5

0

-

451423 32 41 50 59 68

(

-

20)(

-

15)(

-

10) (

-

5) (0) (5) (10) (15) (20)

Resistance (k ohm)

Temperature °F (°C)

16

3. DIMENSIONAL DATA

Indoor Unit KS0971

KS1271

Unit: inch(mm)

17

10-13/16

3-19/32

ID:23/32

2-ID:15/16

21-3/16

6-3/32

4-9/32 2-5/32

Narrow tube service valve

dia.1/4" (6.35)

Wide tube service valve

dia.3/8" (9.52)

3-19/32

15/32

10-7/16(265)

11-13/32

12-7/16

Unit: inch(mm)

28-11/32 (720) 2-1/8

21-9/16 (548)

5/8

Outdoor Unit C0971 C1271

CL0971 CL1271

18

Compressor

Accumulator

Wide tube

service

valve

Wide tube

Narrow

tube

service

valve

Narrow tube

Heat exchanger

Muffler

Cooling cycle

Indoor unit Outdoor unit

Electric

expansion

valve

M

Muffler

*1

*1: 0nly for C1271/CL1271

O.D.

3/8"

(9.52 mm)

O.D.

1/4"

(6.35 mm)

H.P.

High pressure

switch

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

Indoor Unit KS0971

KS1271

Outdoor Unit C0971 C1271

CL0971 CL1271

Insulation of Refrigerant Tubing

Because capillary tubing is used in the outdoor unit, both the

wide and narrow tubes of this air conditioner become cold. To

prevent heat loss and wet floors due to dripping of

condensation, both tubes must be well insulated with a

proper insulation material. The thickness of the insulation

should be a min. 5/16"(8 mm).

After a tube has been insulated,

never try to bend it into a narrow

curve because it can cause the tube

to break or crack.

Wide tube

Thickness:

Min. 5/16"(8 mm)

Insulation

Narrow tube

Thickness:

Min. 5/16"(8 mm)

IMPORTANT

CAUTION

19

5. PERFORMANCE DATA

5-1. Temperature Charts

Indoor Unit KS0971 Outdoor Unit C0971

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

:Points of rating condition

Black dots in above charts indicate the following rating conditions.

NOTE

Cooling: Indoor air temperature 80 °F D.B. / 67 °F W.B.

Outdoor air temperature 95 °F D.B.

Cooling Characteristics

77

(25)

86

(30)

95

(35)

104

(40)

77

(25)

86

(30)

95

(35)

104

(40)

62.6(17)

60.8(16)

59.0(15)

57.2(14)

55.4(13)

53.6(12)

51.8(11)

50.0(10)

Outdoor inlet air D.B. temp.°F(°C)

Operating current (A)Indoor discharge air temperature °F(°C)

77

(25)

86

(30)

95

(35)

104

(40)

8

9

10

11

6

5

7

4

145

(1.0)

159

(1.1)

131

(0.9)

117

(0.8)

Low pressure at wide tube service valve

psig(MPaG)

80

°F(

27

°C)

75

°F(

24

°C)

Indoor Air Temp.86

°F(

30

°C)

Outdoor fan speed

HighLow

Outdoor fan speed

HighLow

Outdoor fan speed

HighLow

80

°F(

27

°C)

75

°F(

24

°C)

Indoor Air Temp.86

°F(30°C)

75

°F(

24

°C)

80

°F(

27

°C)

Indoor Air Temp.86

°F(

30

°C)

20

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