Sanyo CH1872 User Manual

TECHNICAL & SERVICE MANUAL

KHS1872 + CH1872

FILE NO.

KHS2472 + CH2472

Destination: North America

DC INVERTER SPLIT SYSTEM AIR CONDITIONER

Indoor Model No.

KHS1872

KHS2472

Indoor Unit Outdoor Unit

Product Code No.

1 852 099 85

1 852 099 86

Outdoor Model No.

CH1872

CH2472

Product Code No.

1 852 330 38

1 852 330 39

KHS1872 KHS2472

IMPORTANT

These air conditioners employ new refrigerant R410A.

Pay special attention when servicing the unit.

CH1872

CH2472

REFERENCE NO.

SM700656-05

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.

This symbol refers to a hazard or

WARNING

CAUTION

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.

SPECIAL PRECAUTIONS

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.

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

WARNING

•

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 Wiring

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.

•

Turn 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

CAUTION

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.

Table of Contents

Page

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. Te mperature Charts 5-2. Cooling Capacity 5-3. Cooling Capacity (Low Ambient) 5-4. Heating Capacity 5-5. Air Throw Distance Charts

6. ELECTRICAL DATA

6-1.  Electrical Characteristics 6-2.  Electric Wiring Diagrams

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6 10 14

19 23 25 27 29

31 33

7. MAINTENANCE

7-1. Address Setting of the Remote Control Unit 7-2. Disconnecting and Connecting Positive Connector for Outdoor Unit

8. FUNCTIONS

8-1. Operation Functions 8-2. Protective Functions

9. TROUBLESHOOTING

9-1. Precautions before Performing Inspection or Repair 9-2. Method of Self-Diagnostics 9-3. Checking the Indoor and Outdoor Units 9-4. Trouble Diagnosis of Fan Motor 9-5. Noise Malfunction and Electromagnetic Interference

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36 37

38 40

42 42 45 49 51

10. CHECKING ELECTRICAL COMPONENTS

10-1. Measurement of Insulation Resistance 10-2. Checking Continuity of Fuse on PCB Ass'y

11. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT

11-1. Characteristics of New Refrigerant R410A 11-2. Checklist before Servicing 11-3. Tools Specifically for R410A 11-4. Tubing Installation Procedures 11-5. In Case of Compressor Malfunction 11-6. In Case Refrigerant is Leaking 11-7. Charging Additional Refrigerant 11-8. Retro-Fitting Existing Systems

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Page

52 53

54 55 56 56 57 59 60 60

APPENDIX A INSTRUCTION MANUAL

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APPENDIX B INSTALLAION INSTRUCTIONS

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A-1

A-2

1. OPERATING RANGE

Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.

Cooling

Heating

Maximum

Minimum

Maximum

Minimum

95 °F D.B. / 71 °F W.B.

67 °F D.B. / 57 °F W.B.

80 °F D.B. / 67 °F W.B.

D.B. / _ W.B.

115 °F D.B.

0 °F D.B.

75 °F D.B. / 65 °F W.B.

0 °F D.B.

2. SPECIFICATIONS

2-1. Unit Specifications

Indoor Unit KHS1872 Outdoor Unit CH1872

< 230V >

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.

Heating: Indoor air temperature 70°F D.B.

Outdoor air temperature 47°F D.B. / 43°F W.B.

Vertical

dB-A dB-A

Indoor : Hi/Me/Lo/Qt* Outdoor : Hi

Air Filter Compressor Refrigerant / Amount charged at shipment Ibs (g) Refrigerant Control

( 4,400 to 20,400 ) ( 1.3 to 6.0 )

7.0

1,500

( 1.2 to 7.0 ) ( 250 to 1,500 )

7.4

1,575

( 1.3 to 7.4 ) ( 270 to 1,575 )

17,500

5.15

20,400

6.0

( 4,000 to 17,500 ) ( 1.2 to 5.15 )

Shipping Volume

Cooling Heating

13,100

4,400

Net Shipping

Package Dimensions

Weight

Height × Width × Depth

Ibs (kg) Ibs (kg)

cu.ft (m

)

(mm)

inch

(mm)

230V Single-Phase 60Hz

inch

187 to 253

Dimensions & Weight

(*Qt = Quiet mode) Refrigerant Tubing Connections

Unit Dimensions

Operation Sound

Electrical Rating

Sensible Capacity Latent Capacity

WPower Input

V A

Available Voltage Range Running Amperes

Refrigerant Tube Kit / Accessories

Narrow tube Wide tube

Refrigerant inch (mm) Tube Diameter inch (mm)

26.5

33.1

4.23

(12.0) (15.0) (0.12)

97.0

105.8

9.88

(44.0) (48.0) (0.28)

29-1/8 × 39-27/32 × 14-31/32

(740 × 1,012 × 380)

(298 × 1,065 × 218) (670 × 880 × 285)

11-3/8 × 44-7/8 × 14-29/32

(289 × 1,140 × 379)

Outdoor UnitIndoor Unit

11-23/32 × 41-15/16 × 8-19/32 26-3/8 × 34-21/32 × 11-7/32

1/4 (6.35) 1/2 (12.7)

ft (m)Max. allowable tubing length at shipment

Flare Type

25 (7.5)

41 / 38 / 30 / 2842 / 38 / 30 / 28

5251

R410A / 2.87 (1,300)

Electric Expansion Valve

Washable, Anti-Mold

DC Twin Rotary (Inverter)

Manual

Auto

Timer

Indoor / OutdoorFan Speeds

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

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

Airflow Direction (Indoor) Horizontal

Controls / Temperature Control Control Unit

Microprocessor / I.C. Thermister

Wireless Remote Control Unit

Features

HSPF Compressor Locked Rotor Amperes

BTU/Wh

Optional / Air Clean Filter

BTU/h

Performance

-10

%Power Factor 93 93

A 17.5

Voltage Rating

BTU/h

Total Capacity

BTU/h

SEER BTU/Wh 20 -

524 (890) 541 (920)Air Circulation (High) ft3/min (m3/h)

4.89 -Moisture Removal (High) Pints/h

COP W/W - 3.81

EER BTU/h/W 11.7 -

Fuse or Circuit Breaker Capacity A20

Indoor Unit KHS1872 Outdoor Unit CH1872

Voltage Rating

Total Capacity

Sensible Capacity Latent Capacity

Performance

Available Voltage Range Running Amperes

BTU/h

BTU/h BTU/h

WPower Input

17,500

V A

1,500

( 4,000 to 17,500 )

5.15

( 1.2 to 5.15 )

524 (890) 541 (920)Air Circulation (High) ft3/min (m3/h)

7.7

( 1.2 to 7.7 ) ( 250 to 1,500 )

%Power Factor 94 93 EER BTU/h/W 11.7 COP W/W - 3.81 SEER BTU/Wh 20 HSPF

Electrical Rating

Compressor Locked Rotor Amperes

BTU/Wh

A 17.5 Fuse or Circuit Breaker Capacity A20 Controls / Temperature Control Control Unit Timer

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

Indoor / OutdoorFan Speeds

Airflow Direction (Indoor) Horizontal

Vertical Air Filter Compressor Refrigerant / Amount charged at shipment Ibs (g)

Features

Refrigerant Control Operation Sound (*Qt = Quiet mode)

Indoor : Hi/Me/Lo/Qt* Outdoor : Hi

dB-A dB-A

Refrigerant Tubing Connections

ft (m)Max. allowable tubing length at shipment Refrigerant inch (mm) Tube Diameter inch (mm)

Narrow tube Wide tube

Refrigerant Tube Kit / Accessories

Unit Dimensions

Height × Width × Depth

Package Dimensions

Height × Width × Depth

Weight

Dimensions & Weight

Shipping Volume

Net Shipping

inch

(mm)

inch

(mm)

Ibs (kg) Ibs (kg)

cu.ft (m

11-23/32 × 41-15/16 × 8-19/32 26-3/8 × 34-21/32 × 11-7/32

(298 × 1,065 × 218) (670 × 880 × 285)

11-3/8 × 44-7/8 × 14-29/32

(289 × 1,140 × 379)

26.5

33.1

)

4.23

208V Single-Phase 60Hz

Cooling Heating

20,400

6.0

13,100

4,400

4.89 -Moisture Removal (High) Pints/h

187 to 253

8.1

1,575

-10

Microprocessor / I.C. Thermister

Wireless Remote Control Unit

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

Manual

Auto

Washable, Anti-Mold

DC Twin Rotary (Inverter)

R410A / 2.87 (1,300)

Electric Expansion Valve

Flare Type

25 (7.5) 1/4 (6.35) 1/2 (12.7)

Optional / Air Clean Filter

29-1/8 × 39-27/32 × 14-31/32

(740 × 1,012 × 380) (12.0) (15.0) (0.12)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

< 208V >

( 4,400 to 20,400 ) ( 1.3 to 6.0 )

( 1.3 to 8.1 )

( 270 to 1,575 )

41 / 38 / 30 / 2842 / 38 / 30 / 28

5251

Outdoor UnitIndoor Unit

97.0

(44.0)

105.8

(48.0)

9.88

(0.28)

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.

Heating: Indoor air temperature 70°F D.B.

Outdoor air temperature 47°F D.B. / 43°F W.B.

Indoor Unit KHS2472 Outdoor Unit CH2472

Voltage Rating

Total Capacity

Sensible Capacity Latent Capacity

Performance

Available Voltage Range Running Amperes

EER BTU/h/W 10.3 COP W/W - 3.41 SEER BTU/Wh 17 HSPF

Electrical Rating

Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity A20 Controls / Temperature Control Control Unit Timer

Indoor / OutdoorFan Speeds

Airflow Direction (Indoor) Horizontal

Air Filter Compressor Refrigerant / Amount charged at shipment Ibs (g)

Features

Refrigerant Control Operation Sound (*Qt = Quiet mode) Refrigerant Tubing Connections

Refrigerant inch (mm) Tube Diameter inch (mm) Refrigerant Tube Kit / Accessories

Unit Dimensions

Height × Width × Depth

Package Dimensions

Height × Width × Depth

Weight

Dimensions & Weight

Shipping Volume

Indoor : Hi/Me/Lo/Qt* Outdoor : Hi

Narrow tube Wide tube

Net Shipping

BTU/h

BTU/h BTU/h

BTU/Wh

Vertical

dB-A dB-A

ft (m)Max. allowable tubing length at shipment

inch

(mm)

inch

(mm) Ibs (kg) Ibs (kg)

cu.ft (m

24,200

V A

WPower Input

2,355

%Power Factor 95 90

A 17.5

11-23/32 × 41-15/16 × 8-19/32 29-1/8 × 35-7/16 × 12-19/32

11-3/8 × 44-7/8 × 14-29/32

)

( 4,000 to 24,200 )

7.1

( 1.2 to 7.1 )

600 (1,020) 653 (1,110)Air Circulation (High) ft3/min (m3/h)

10.8

( 1.3 to 10.8 ) ( 280 to 2,355 )

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

(298 × 1,065 × 218) (740 × 900 × 320)

(289 × 1,140 × 379)

26.5

33.1

4.23

230V Single-Phase 60Hz

Cooling Heating

29,000

8.5

14,800

9,400

4.89 -Moisture Removal (High) Pints/h 187 to 253

12.0

2,490

- 8.5

Microprocessor / I.C. Thermister

Wireless Remote Control Unit

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

Manual

Auto

Washable, Anti-Mold

DC Twin Rotary (Inverter)

R410A / 4.30 (1,950)

Electric Expansion Valve

Flare Type

33 (10)

1/4 (6.35)

5/8 (15.88)

Optional / Air Clean Filter

33-27/32 × 40-5/8 × 16-1/4

(860 × 1,032 × 413) (12.0) (15.0) (0.12)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

< 230V >

( 4,400 to 29,000 ) ( 1.3 to 8.5 )

( 1.3 to 12.0 ) ( 290 to 2,490 )

46 / 43 / 40 / 3047 / 44 / 41 / 30

5655

Outdoor UnitIndoor Unit

130.1

(59.0)

138.9

(63.0)

12.71

(0.36)

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.

Heating: Indoor air temperature 70°F D.B.

Outdoor air temperature 47°F D.B. / 43°F W.B.

Indoor Unit KHS2472 Outdoor Unit CH2472

Voltage Rating

Total Capacity

Sensible Capacity Latent Capacity

Performance

Available Voltage Range Running Amperes

EER BTU/h/W 10.3 COP W/W - 3.41 SEER BTU/Wh 17 HSPF

Electrical Rating

Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity A20 Controls / Temperature Control Control Unit Timer

Indoor / OutdoorFan Speeds

Airflow Direction (Indoor) Horizontal

Air Filter Compressor Refrigerant / Amount charged at shipment Ibs (g)

Features

Refrigerant Control Operation Sound (*Qt = Quiet mode) Refrigerant Tubing Connections

Refrigerant inch (mm) Tube Diameter inch (mm) Refrigerant Tube Kit / Accessories

Unit Dimensions

Height × Width × Depth

Package Dimensions

Height × Width × Depth

Weight

Dimensions & Weight

Shipping Volume

Indoor : Hi/Me/Lo/Qt* Outdoor : Hi

Narrow tube Wide tube

Net Shipping

BTU/h

BTU/h BTU/h

BTU/Wh

Vertical

dB-A dB-A

ft (m)Max. allowable tubing length at shipment

inch

(mm)

inch

(mm) Ibs (kg) Ibs (kg)

cu.ft (m

24,200

V A

WPower Input

2,355

%Power Factor 94 89

A 17.5

11-23/32 × 41-15/16 × 8-19/32 29-1/8 × 35-7/16 × 12-19/32

11-3/8 × 44-7/8 × 14-29/32

)

( 4,000 to 24,200 )

7.1

( 1.2 to 7.1 )

600 (1,020) 653 (1,110)Air Circulation (High) ft3/min (m3/h)

12.1

( 1.3 to 12.1 ) ( 280 to 2,355 )

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

(298 × 1,065 × 218) (740 × 900 × 320)

(289 × 1,140 × 379)

26.5

33.1

4.23

208V Single-Phase 60Hz

Cooling Heating

29,000

8.5

14,800

9,400

4.89 -Moisture Removal (High) Pints/h 187 to 253

13.5

2,490

- 8.5

Microprocessor / I.C. Thermister

Wireless Remote Control Unit

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

Manual

Auto

Washable, Anti-Mold

DC Twin Rotary (Inverter)

R410A / 4.30 (1,950)

Electric Expansion Valve

Flare Type

33 (10)

1/4 (6.35)

5/8 (15.88)

Optional / Air Clean Filter

33-27/32 × 40-5/8 × 16-1/4

(860 × 1,032 × 413) (12.0) (15.0) (0.12)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

< 208V >

( 4,400 to 29,000 ) ( 1.3 to 8.5 )

( 1.3 to 13.5 ) ( 290 to 2,490 )

46 / 43 / 40 / 3047 / 44 / 41 / 30

5655

Outdoor UnitIndoor Unit

130.1

(59.0)

138.9

(63.0)

12.71

(0.36)

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.

Heating: Indoor air temperature 70°F D.B.

Outdoor air temperature 47°F D.B. / 43°F W.B.

2-2. Major Component Specifications

2-2-1. Indoor Unit

Indoor Unit KHS1872

Control PCB

Part No.

Controls

Control Circuit Fuse

CB-KHS1872

Microprocessor

250V 3A

Remote Control Unit

Fan

Type Q'ty ... Dia. and Length

Fan Motor

Type Model ... Q'ty No. of Poles

Rough Measure RPM (Cool / Heat)

Nominal Output

Coil Resistance

(Ambient Temp. 68 °F (20 °C))

Safety Device

Type Over-Current Protection Over-Heat Protection

Run Capacitor Micro F

Flap Motor

Type Stepping Motor

Model

Rating

Coil Resistance Ohm

(Ambient Temp. 77 °F (25 °C))

inch (mm)

Ohm

VAC

1 ... D3-11/16 / L33-9/32 (D94/L845)

Each Pair of Terminal : 400 +/- 7%

RCS-4HVPIS4U

SIC-39CVL-D847-2-A ... 1

Internal Controller

MP24Z3-12V

Cross-Flow

DC Motor

1,250 / 1,300

Yes Yes

DC 12V

Heat Exchanger Coil

Coil

Rows Fins Per inch

(m2)

Aluminum Plate Fin / Copper Tube

19.5

3.07 (0.285) Face Area

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Indoor Unit KHS2472

Control PCB

Part No.

Controls

Control Circuit Fuse

CB-KHS2472

Microprocessor

250V 3A

Remote Control Unit

RCS-4HVPIS4U

Fan

Type Q'ty ... Dia. and Length

inch (mm)

1 ... D3-11/16 / L33-9/32 (D94/L845)

Fan Motor

Type Model ... Q'ty

SIC-39CVL-D847-2-A ... 1

No. of Poles

Rough Measure RPM (Cool / Heat)

Nominal Output

Coil Resistance

Ohm

(Ambient Temp. 68 °F (20 °C))

Safety Device

Type

Internal Controller

Over-Current Protection Over-Heat Protection

Run Capacitor Micro F

VAC

Flap Motor

Type Stepping Motor

Model

MP24Z3-12V Rating Coil Resistance Ohm

Each Pair of Terminal : 400 +/- 7%

(Ambient Temp. 77 °F (25 °C))

Cross-Flow

DC Motor

1,500 / 1,550

Yes Yes

DC 12V

Heat Exchanger Coil

Coil

Rows

Fins Per inch

(m2)

Aluminum Plate Fin / Copper Tube

19.5

3.07 (0.285) Face Area

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

2-2-2. Outdoor Unit

Outdoor Unit CH1872

Control PCB

Part No.

Controls

Control Circuit Fuse

Compressor

Type

Compressor Model / Nominal Output

Compressor Oil ... Amount Coil Resistance (Ambient Temp. 68 °F (20 °C))

Safety Device

CT (Peak current cut-off control) Compressor Discharge Temp. Control

Operation cut-off control in abnormal ambient Temp.

Overload Relay

Run Capacitor

Crankcase Heater

Pints (cc)

Ohm

Model

Operation Temp.

Micro F

VAC

CB-CH1872

Microprocessor

250V 25A

DC Twin Rotary (Hermetic)

C-6RVN93H0M / 1,050W

FV50S ... 0.74 (350)

R - S :

0.482

S - T :

0.482

T - R :

0.482

Yes Yes Yes

CS-7L115

Open : 239 °F (115 °C), Close : 203 °F (95 °C)

Fan

Type

Q'ty ... Dia. inch (mm)

Fan Motor

Type Model ... Q'ty No. of Poles

Rough Measure RPM (Cool / Heat) Nominal Output Coil Resistance

(Ambient Temp. 68 °F (20 °C))

Safety Device

Type Over- Current Protection

Run Capacitor

Heat Exchanger Coil

Coil

Rows

Fins per inch

Face Area

Ohm

Micro F

VAC

(m2)

Propeller

1 ... D16-17/32 (D420)

DC Motor

DAJ12-55J71A-CU ... 1

820 / 850

RED - WHT :

WHT - BLU :

BLU - RED :

77.5

Internal Controller

Yes

Aluminum Plate Fin / Copper Tube

21.2

5.49 (0.510)

External Finish Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Outdoor Unit CH2472

Control PCB

Part No.

Controls

Control Circuit Fuse

Compressor

Type

Compressor Model / Nominal Output

Compressor Oil ... Amount Coil Resistance (Ambient Temp. 68 °F (20 °C))

Safety Device

CT (Peak current cut-off control) Compressor Discharge Temp. Control

Operation cut-off control in abnormal ambient Temp.

Overload Relay

Run Capacitor

Crankcase Heater

Pints (cc)

Ohm

Model

Operation Temp.

Micro F

VAC

CB-CH2472

Microprocessor

250V 25A

DC Twin Rotary (Hermetic)

G8T265FU1JW / 2,410W

FV50S ... 1.49 (700)

U - V :

0.36 V - W : W - U :

0.36

Yes Yes Yes

CS-7L115

Open : 239 °F (115 °C), Close : 203 °F (95 °C)

230V 30W

Fan

Type

Q'ty ... Dia. inch (mm)

Fan Motor

Type Model ... Q'ty No. of Poles

Rough Measure RPM (Cool / Heat) Nominal Output Coil Resistance

(Ambient Temp. 68 °F (20 °C))

Safety Device

Type Over- Current Protection Over- Heat Protection

Run Capacitor

Heat Exchanger Coil

Coil

Rows

Fins per inch

Face Area

Ohm

Micro F

VAC

(m2)

Propeller

1 ... D18-1/8 (D460)

DC Motor

SIC-71FW-D490-1 ... 1

850 / 850

Internal Controller

Yes Yes

Aluminum Plate Fin / Copper Tube

18.1

6.40 (0.595)

External Finish Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

2-3. Other Component Specifications

Indoor Unit KHS1872  KHS2472 Outdoor Unit CH1872

 CH2472

• Indoor air temp sensor

(Model:PTM-D51H-S3-2 TH2)

• Indoor heat exchanger sensor

(Model:PTM-D51H-S3-2 TH1)

• Compressor temp sensor

(Model:TKS293B)

Resistance (k ohm)

59 68 77 86 95 104

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

Temperature °F (°C)

200

180

160

140

120

100

Resistance (k ohm)

32 50 68 86 104 122 140 158 176 194 (0) (10) (20) (30) (40) (50) (60) (70) (80) (90)

Temperature °F (°C)

• Outdoor air temp sensor

(Model:TKS295B)

• Outdoor heat exchanger sensor

(Model:TKS292B)

Resistance (k ohm)

4514 23 32 41 50 59 68

(

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

Temperature °F (°C)

3. DIMENSIONAL DATA

Indoor Unit  KHS1872  KHS2472

Unit: inch(mm)

Outdoor Unit CH1872

23-15/16 5-11/32

1-3/8

11-17/32

ID:23/32

34-21/32(880)

4-ID:15/16

15/32

2-17/32

12-7/32

11-7/32(285)

13-5/32

Wide tube service valve dia.1/2" (12.70)

Narrow tube service valve dia.1/4" (6.35)

1-13/16

23/32

2-13/32

26-3/8(670)

3/32

5-23/32

Unit: inch(mm)

4-3/8 2-5/32

6-17/32

Outdoor Unit CH2472

23-15/16 5-11/32

1-3/8

11-17/32

ID:23/32

35-7/16(900)

5-ID:15/16

15/32

2-15/16

13-19/32

12-19/32(320)

14-17/32

Narrow tube service valve dia.1/4" (6.35)

Wide tube service valve dia.5/8" (15.88)

23/32

1-21/32

2-7/8

29-1/8(740)

5-29/32

4-7/16

2-1/32 4-1/2

Unit: inch(mm)

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

Indoor Unit KHS1872  KHS2472

Indoor unit Outdoor unit

Heat exchanger

Narrow tube

Wide tube

O.D. 1/4" (6.35 mm)

Outdoor Unit CH1872

 CH2472

Wide tube service valve

Muffler

Narrow tube service valve

Strainer

*1 O.D.1/2"(12.7 mm)

O.D.5/8"(15.88 mm)

4-way valve

.........

Accumulator

High pressure

Electric

expansion

valve

1872 class 2472 class

switch

H.P.

Capillary tube for split flow

Compressor

Heat exchanger

Cooling cycle (Defrosting cycle)

Heating cycle

Insulation of Refrigerant Tubing

IMPORTANT

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,

CAUTION

never try to bend it into a narrow curve because it can cause the tube to break or crack.

Thickness: Min. 5/16"(8 mm)

Wide tube

Insulation

Thickness: Min. 5/16"(8 mm)

Narrow tube

5. PERFORMANCE DATA

5-1. Temperature Charts

Indoor Unit KHS1872 Outdoor Unit CH1872

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

(1) Low pressure performance chart

174

(1.2)

159

(1.1)

145

psig(MPaG)

(1.0)

131

(0.9)

117

(0.8)

104

(0.7)

(0.6)

Low pressure at wide tube service valve

(0.5)

-4

(-20)

(-15)

(-10)

(-5)

(2) Operating current performance chart

32 (0)

41 (5)

(10)

Outdoor inlet air D.B. temp.°F(°C)

Indoor Air Temp.86

Indoor Air Temp.86°F (30°C)

80°F (27°C)

75°F (24°C)

(15)

(20)

Indoor Air Temp.86

Indoor Air Temp.86°F (30°C)

80°F (27°C)

80 75°F (24°C)

F (27

F (24

°F (27

F (24

(25)

F (30

Hi FanLo fan

(30)

(35)

Hi FanLo fan

104 (40)

Operating current (A)

-4

(-20)

(-15)

(-10)

(-5)

(3) Indoor discharge air performance chart

64.4 (18)

°C)

60.8 (16)

57.2 (14)

53.6 (12)

50.0 (10)

Indoor discharge air temperature °F(

46.4 (8)

-4

(-20)

(-15)

(-10)

(-5)

32 (0)

41 (5)

(10)

Outdoor inlet air D.B. temp.°F(°C)

32 (0)

41 (5)

(10)

Outdoor inlet air D.B. temp.°F(°C)

(15)

(20)

Indoor Air Temp.86

Indoor Air Temp.86°F (30°C)

(20)

(25)

F (27

80°F (27°C)

F (24

75°F (24°C)

(25)

F (30

(30)

(35)

Hi FanLo fan

(35)

104 (40)

NOTE

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

Indoor Unit KHS1872 Outdoor Unit CH1872

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

(1) High pressure performance chart

494

(3.4)

psig (MPaG)

421

(2.9)

348

(2.4)

275

High pressure at wide tube service valve

(1.9)

(2) Operating current performance chart

11

10

9

8

7

6

Operating current (A)

Indoor air temp.73

(–5)32(0)41(5)50(10)59(15)68(20)77(25)

Outdoor inlet air D.B. temp. °F(°C)



Indoor air temp.73

°F (23°C)

°F (

°C)

°F (23°C)

°C)

°F (

°C)

(–5)32(0)41(5)

Outdoor inlet air D.B. temp. °F(°C)

(10)59(15)68(20)77(25)

(3) Indoor discharge air performance chart

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

Indoor discharge air temperature °F(°C)

Indoor air temp.73

(–5)32(0)41(5)50(10)

Outdoor inlet air D.B. temp. °F(°C)

°F (

°F (23°C)

°C)

°F (

(15)68(20)77(25)

NOTE

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

• Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in

heating mode. (Refer to "8-2. Overload prevention during heating.")

Indoor Unit KHS2472 Outdoor Unit CH2472

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

(1) Low pressure performance chart

174

(1.2)

159

(1.1)

145

psig(MPaG)

(1.0)

131

(0.9)

117

(0.8)

104

(0.7)

(0.6)

Low pressure at wide tube service valve

(0.5)

-4

(-20)

(-15)

(-10)

(-5)

(2) Operating current performance chart

Operating current (A)

-4

(-20)

(-15)

(-10)

(-5)

32 (0)

41 (5)

(10)

Outdoor inlet air D.B. temp.°F(°C)

32 (0)

41 (5)

(10)

Outdoor inlet air D.B. temp.°F(°C)

Indoor Air Temp.86

Indoor Air Temp.86°F (30°C)

(15)

(20)

Indoor Air Temp.86

Indoor Air Temp.86°F (30°C

(20)

F (27

80°F (27°C)

F (24

75°F (24°C)

F (27

80°F (27°C)

F (24

75°F (24°C)

(25)

F (30

Hi FanLo fan

(30)

)

(30)

(35)

Hi FanLo fan

(35)

104 (40)

(3) Indoor discharge air performance chart

68.0 (20)

°C)

64.4 (18)

60.8 (16)

57.2 (14)

53.6 (12)

50.0 (10)

46.4 (8)

Indoor discharge air temperature °F(

42.8 (6)

-4

(-20)

(-15)

(-10)

(-5)

32 (0)

41 (5)

(10)

Indoor Air Temp.86

Indoor Air Temp.86°F (30°C

(15)

(20)

F (27

80°F (27°C)

F (24

75°F (24°C)

(25)

F (30

Hi FanLo fan

)

(30)

(35)

Outdoor inlet air D.B. temp.°F(°C)

NOTE

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

104 (40)

Indoor Unit KHS2472 Outdoor Unit CH2472

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

(1) High pressure performance chart

494

(3.4)

psig (MPaG)

421

(2.9)

348

(2.4)

275

High pressure at wide tube service valve

(1.9)

(2) Operating current performance chart

16

15

14

13

12

11

Operating current (A)

Indoor air temp.73

(–5)32(0)41(5)50(10)59(15)68(20)77(25)

Outdoor inlet air D.B. temp. °F(°C)



Indoor air temp.73

23°C)

°F (

°C)

°F (

°C)

°F (

23°C)

°F (

°C)

°F (

°C)

°F (

(–5)32(0)41(5)

Outdoor inlet air D.B. temp. °F(°C)

(10)59(15)68(20)77(25)

(3) Indoor discharge air performance chart

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

Indoor discharge air temperature °F(°C)

Indoor air temp.73°F (

(–5)32(0)41(5)50(10)

Outdoor inlet air D.B. temp. °F(°C)

23°C)

°C)

°F (

°C)

°F (

(15)68(20)77(25)

NOTE

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

• Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in

heating mode. (Refer to "8-2. Overload prevention during heating.")

5-2. Cooling Capacity

Indoor Unit : KHS1872

Outdoor Unit : CH1872

Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

RATING CAPACITY: 17,500 BTU/h AIR FLOW RATE: 524 CFM

INDOOR OUTDOOR

ENT. TEMP.

W.B. D.B. 65 75 85 95 105 115

59 76 (24.4) SHC 14,840 14,640 14,340 14,030 13,720 10,530

(15.0) 80 (26.7) SHC 16,670 16,370 16,060 15,860 15,320 10,530

63 76 (24.4) SHC 12,810 12,610 12,300 12,000 11,6909,450

(17.2) 80 (26.7) SHC 14,640 14,340 14,130 13,830 13,520 10,770

F (oC)AMBIENT TEMP. oF (oC)

TC 17,710 17,180 16,600 16,040 15,320 10,530

72 (22.2) SHC 13,110 12,910 12,610 12,300 12,000 9,760

84 (28.9) SHC 17,710 17,180 16,600 16,040 15,320 10,530 88 (31.1) SHC 17,710 17,180 16,600 16,040 15,320 10,530

TC 18,460 17,920 17,330 16,770 16,040 10,770

72 (22.2) SHC 11,080 10,880 10,570 10,370 9,960 7,720

84 (28.9) SHC 16,370 16,060 15,860 15,560 15,250 10,770 88 (31.1) SHC 18,100 17,790 17,330 16,770 16,040 10,770

TC 19,190 18,650 18,060 # 17,500 16,750 10,980

(18.3) (23.9) (29.4) (35.0) (40.6) (46.1)

72 (22.2) SHC 9,050 8,740 8,540 8,330 8,030 5,790

67 76 (24.4) SHC 10,780 10,470 10,270 10,060 9,760 7,520

(19.4) 80 (26.7) SHC 12,500 12,300 12,100 11,790 11,4909,250

84 (28.9) SHC 14,230 14,030 13,830 13,520 13,220 10,980 88 (31.1) SHC 15,960 15,760 15,450 15,250 14,950 10,980

TC 19,880 19,350 18,760 18,220 17,460 11,160

72 (22.2) SHC 6,810 6,600 6,400 6,200 5,890 3,650

71 76 (24.4) SHC 8,540 8,330 8,130 7,930 7,620 5,380

(21.7) 80 (26.7) SHC 10,270 10,060 9,860 9,660 9,350 7,210

84 (28.9) SHC 12,000 11,790 11,590 11,390 11,0808,940 88 (31.1) SHC 13,720 13,520 13,320 13,110 12,810 10,670

TC 20,470 19,940 19,350 18,830 18,070 11,270

75 76 (24.4) SHC 6,300 6,200 5,990 5,790 5,490 3,350

(23.9) 80 (26.7) SHC 8,130 7,930 7,720 7,620 7,320 5,180

84 (28.9) SHC 9,860 9,660 9,450 9,350 9,050 6,910 88 (31.1) SHC 11,590 11,390 11,180 10,980 10,7808,640

TC : Total Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h)

NOTE

Rating conditions (#)

: Indoor Unit Entering Air Temp. 80 °F (26.7 °C) D.B. / 67 °F (19.4 °C) W.B. : Outdoor Ambient Temp. 95 °F (35 °C) D.B.

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.

Indoor Unit : KHS2472

Outdoor Unit : CH2472

Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

RATING CAPACITY: 24,200 BTU/h AIRFLOWRATE: 600 CFM

INDOOR OUTDOOR

oF(o

ENT. TEMP.

W.B. D.B. 65 75 85 95 105 115

59 76 (24.4) SHC 19,050 18,700 18,230 17,880 15,900 11,170

(15.0) 80 (26.7) SHC 21,030 20,680 20,330 19,860 17,880 11,170

63 76 (24.4) SHC 16,600 16,250 15,900 15,550 13,450 10,300

(17.2) 80 (26.7) SHC 18,580 18,230 17,880 17,530 15,430 11,390

C)AMBIENT TEMP.oF(oC)

TC 24,430 23,750 23,010 22,310 18,420 11,170

72 (22.2) SHC 17,180 16,720 16,370 16,020 13,920 10,540

84 (28.9) SHC 23,010 22,660 22,200 21,850 18,420 11,170 88 (31.1) SHC 24,430 23,750 23,010 22,310 18,420 11,170

TC 25,360 24,690 23,940 23,260 18,810 11,390

72 (22.2) SHC 14,730 14,380 13,920 13,690 11,590 8,320

84 (28.9) SHC 20,560 20,210 19,860 19,510 17,420 11,390 88 (31.1) SHC 22,430 22,080 21,730 21,380 18,810 11,390

TC 26,250 25,590 24,850 # 24,200 19,150 11,590

(18.3) (23.9) (29.4) (35.0) (40.6) (46.1)

72 (22.2) SHC 12,170 11,820 11,590 11,240 9,020 6,110

67 76 (24.4) SHC 14,150 13,800 13,450 13,220 11,000 8,090

(19.4) 80 (26.7) SHC 16,130 15,780 15,430 15,200 12,990 10,070

84 (28.9) SHC 18,000 17,770 17,420 17,070 14,970 11,590 88 (31.1) SHC 19,980 19,630 19,280 19,050 16,830 11,590

TC 27,080 26,430 25,700 25,100 19,420 11,740

72 (22.2) SHC 9,4909,260 8,910 8,670 6,460 3,780

71 76 (24.4) SHC 11,470 11,120 10,890 10,6508,440 5,760

(21.7) 80 (26.7) SHC 13,450 13,220 12,870 12,640 10,420 7,740

84 (28.9) SHC 15,320 15,080 14,730 14,500 12,290 9,720 88 (31.1) SHC 17,300 17,070 16,720 16,480 14,270 11,590

TC 27,740 27,120 26,410 25,850 19,570 11,830

75 76 (24.4) SHC 8,790 8,560 8,320 8,090 5,870 3,540

(23.9) 80 (26.7) SHC 10,770 10,540 10,300 10,070 7,970 5,520

84 (28.9) SHC 12,750 12,520 12,290 12,050 9,840 7,390 88 (31.1) SHC 14,620 14,380 14,150 13,920 11,820 9,370

TC : Total Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h)

NOTE

Rating conditions (#)

: Indoor Unit Entering Air Temp. 80 °F (26.7 °C) D.B. / 67 °F (19.4 °C) W.B. : Outdoor Ambient Temp. 95 °F (35 °C) D.B.

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.

5-3. Cooling Capacity (Low Ambient)

Indoor Unit : KHS1872

Outdoor Unit : CH1872

Power Supply : 230V Single Phase 60Hz

< Cooling Capacity (Low Ambient) >

RATING CAPACITY: 17,500 BTU/h AIR FLOW RATE: 524 CFM

INDOOR OUTDOOR

ENT. TEMP.

W.B. D.B. 0515 25 35 45 55

59 76 (24.4) SHC 13,520 13,520 13,520 13,620 13,620 13,620 13,620

(15.0) 80 (26.7) SHC 15,050 15,040 15,010 15,140 15,200 15,260 15,230

63 76 (24.4) SHC 11,280 11,280 11,280 11,390 11,490 11,490 11,590

(17.2) 80 (26.7) SHC 13,110 13,110 13,110 13,220 13,220 13,320 13,320

F (oC) AMBIENT TEMP. oF (oC)

(-17.8) (-15.0) (-9.4) (-3.9) (1.7) (7.2) (12.8)

TC 15,050 15,040 15,010 15,140 15,200 15,260 15,230

72 (22.2) SHC 11,790 11,790 11,790 11,890 11,890 11,890 11,890

84 (28.9) SHC 15,050 15,040 15,010 15,140 15,200 15,260 15,230 88 (31.1) SHC 15,050 15,040 15,010 15,140 15,200 15,260 15,230

TC 15,050 15,050 15,090 15,350 15,480 15,620 15,640

72 (22.2) SHC 9,550 9,550 9,550 9,660 9,760 9,860 9,860

84 (28.9) SHC 14,740 14,740 14,840 14,950 14,950 15,050 15,050 88 (31.1) SHC 15,050 15,050 15,090 15,350 15,480 15,620 15,640

TC 14,890 14,920 15,040 15,460 15,680 15,910 16,000

72 (22.2) SHC 7,210 7,210 7,320 7,520 7,520 7,620 7,720

67 76 (24.4) SHC 8,940 8,940 9,050 9,150 9,250 9,350 9,450

(19.4) 80 (26.7) SHC 10,780 10,780 10,880 10,980 11,080 11,180 11,180

84 (28.9) SHC 12,500 12,500 12,500 12,710 12,810 12,910 12,910 88 (31.1) SHC 14,230 14,230 14,230 14,440 14,540 14,640 14,640

TC 14,550 14,610 14,820 15,440 15,780 16,120 16,290

72 (22.2) SHC 4,880 4,880 4,880 5,180 5,280 5,380 5,490

71 76 (24.4) SHC 6,500 6,600 6,600 6,910 7,010 7,110 7,210

(21.7) 80 (26.7) SHC 8,330 8,330 8,440 8,640 8,740 8,940 8,940

84 (28.9) SHC 10,060 10,060 10,160 10,370 10,470 10,670 10,670 88 (31.1) SHC 11,790 11,790 11,890 12,100 12,200 12,300 12,400

TC 14,050 14,130 14,450 15,300 15,760 16,210 16,470

75 76 (24.4) SHC 4,260 4,260 4,370 4,670 4,770 4,880 4,980

(23.9) 80 (26.7) SHC 5,990 6,100 6,200 6,400 6,600 6,710 6,810

84 (28.9) SHC 7,720 7,830 7,930 8,130 8,330 8,440 8,540 88 (31.1) SHC 9,450 9,450 9,550 9,860 10,060 10,160 10,270

TC : Total Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h)

NOTE

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.

Indoor Unit : KHS2472

Outdoor Unit : CH2472

Power Supply : 230V Single Phase 60Hz

< Cooling Capacity (Low Ambient) >

RATING CAPACITY: 24,200 BTU/h AIR FLOW RATE: 600 CFM

INDOOR OUTDOOR

ENT. TEMP.

W.B. D.B. 0515 25 35 45 55

59 76 (24.4) SHC 17,180 17,180 17,070 17,180 17,180 17,180 17,180

(15.0) 80 (26.7) SHC 19,160 19,160 19,050 19,160 19,160 19,160 19,160

63 76 (24.4) SHC 14,380 14,380 14,380 14,500 14,500 14,500 14,620

(17.2) 80 (26.7) SHC 16,370 16,370 16,370 16,480 16,600 16,600 16,600

F (oC) AMBIENT TEMP. oF (oC)

TC 20,890 20,930 20,770 20,940 20,890 20,850 20,890

72 (22.2) SHC 15,200 15,200 15,200 15,320 15,200 15,200 15,200

84 (28.9) SHC 20,890 20,930 20,770 20,940 20,890 20,850 20,890 88 (31.1) SHC 20,890 20,930 20,770 20,940 20,890 20,850 20,890

TC 20,710 20,780 20,760 21,120 21,130 21,160 21,310

72 (22.2) SHC 12,400 12,400 12,400 12,640 12,640 12,640 12,750

84 (28.9) SHC 18,230 18,350 18,230 18,470 18,470 18,470 18,580 88 (31.1) SHC 20,210 20,210 20,210 20,330 20,330 20,450 20,450

TC 20,300 20,400 20,560 21,150 21,250 21,360 21,620

(-17.8) (-15.0) (-9.4) (-3.9) (1.7) (7.2) (12.8)

72 (22.2) SHC 9,610 9,610 9,610 9,950 9,950 9,950 10,070

67 76 (24.4) SHC 11,470 11,470 11,590 11,820 11,820 11,940 12,050

(19.4) 80 (26.7) SHC 13,450 13,570 13,570 13,800 13,920 13,920 14,040

84 (28.9) SHC 15,430 15,430 15,550 15,780 15,780 15,900 16,020 88 (31.1) SHC 17,300 17,420 17,420 17,650 17,770 17,770 17,880

TC 19,590 19,740 20,120 21,010 21,200 21,410 21,820

72 (22.2) SHC 6,570 6,570 6,810 7,040 7,160 7,270 7,390

71 76 (24.4) SHC 8,440 8,560 8,670 9,020 9,020 9,140 9,370

(21.7) 80 (26.7) SHC 10,540 10,540 10,650 11,000 11,120 11,120 11,350

84 (28.9) SHC 12,400 12,520 12,640 12,990 12,990 13,100 13,220 88 (31.1) SHC 14,380 14,380 14,500 14,850 14,970 14,970 15,200

TC 18,650 18,840 19,490 20,700 20,980 21,310 21,860

75 76 (24.4) SHC 5,640 5,640 5,870 6,340 6,460 6,460 6,690

(23.9) 80 (26.7) SHC 7,620 7,740 7,860 8,320 8,440 8,560 8,670

84 (28.9) SHC 9,610 9,610 9,840 10,190 10,300 10,420 10,650 88 (31.1) SHC 11,470 11,590 11,700 12,170 12,290 12,400 12,520

TC : Total Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h)

NOTE

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.

5-4. Heating Capacity

Indoor Unit : KHS1872

Outdoor Unit : CH1872

Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

RATING CAPACITY: 20,400 BTU/h AIR FLOW RATE: 541 CFM

OUTDOOR INDOOR

ENT. TEMP.

13 (-10.6) TH 13,570 13,560 13,550 13,530 13,510

18 (-7.8) TH 14,610 14,610 14,590 14,570 14,540

oF(o

C) AMBIENT TEMP.oF(oC)

W.B. 60 65 70 75 80

0 (-17.8) TH 11,320 11,320 11,310 11,290 11,270

3 (-16.1) TH 11,700 11,700 11,690 11,680 11,650

8 (-13.3) TH 12,620 12,610 12,600 12,590 12,560

(15.6) (18.3) (21.1) (23.9) (26.7)

23 (-5.0) TH 15,710 15,700 15,690 15,660 15,630

28 (-2.2) TH 16,850 16,840 16,830 16,800 16,760

33 (0.6) TH 18,030 18,020 18,000 17,970 17,930

38 (3.3) TH 19,200 19,190 19,170 19,130 19,090

43 (6.1) TH 20,440 20,430 # 20,400 20,360 20,310

48 (8.9) TH 21,700 21,680 21,650 21,600 21,550

53 (11.7) TH 22,970 22,940 22,910 22,860 22,790

58 (14.4) TH 24,190 24,160 24,120 24,060 23,990

63 (17.2) TH 25,450 25,410 25,360 25,300 25,220

65 (18.3) TH 25,930 25,900 25,850 25,780 25,700

TH : Total Heating Capacity (BTU/h)

NOTE

Rating conditions (#)

Above data does not take Defrost Operation, Overload Prevention Protection, and/or Cold Air Prevention Protection during heating operation into account. For this reason, the value may vary from the actual heating characteristics.

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

: Indoor Unit Entering Air Temp. 70 °F (21.1 °C) D.B. : Outdoor Ambient Temp. 47 °F (8.3 °C) D.B. / 43 °F (6.1 °C) W.B.

Indoor Unit : KHS2472

Outdoor Unit : CH2472

Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

RATING CAPACITY: 29,000 BTU/h AIR FLOW RATE: 653 CFM

OUTDOOR INDOOR

ENT. TEMP.

13 (-10.6)TH 19,39019,390 19,380 19,350 19,320

18 (-7.8) TH 20,87020,860 20,850 20,820 20,780

23 (-5.0) TH 22,42022,410 22,390 22,360 22,320

28 (-2.2) TH 24,03024,020 24,000 23,960 23,910

oF(o

C)AMBIENT TEMP.oF(oC)

W.B. 60 65 70 75 80

0(-17.8) TH 16,21016,210 16,200 16,180 16,150

3(-16.1) TH 16,75016,750 16,740 16,720 16,690

8(-13.3) TH 18,05018,050 18,040 18,010 17,980

(15.6) (18.3) (21.1) (23.9) (26.7)

33 (0.6)TH 25,69025,680 25,650 25,610 25,550

38 (3.3)TH 27,33027,320 27,280 27,230 27,160

43 (6.1)TH 29,07029,040 # 29,000 28,940 28,860

48 (8.9)TH 30,82030,790 30,740 30,670 30,580

53 (11.7) TH 32,58032,540 32,470 32,390 32,300

58 (14.4) TH 34,26034,210 34,140 34,050 32,390

63 (17.2) TH 35,98035,920 35,840 33,980 32,250

65 (18.3) TH 36,64036,580 35,780 33,880 32,150

TH : Total Heating Capacity (BTU/h)

NOTE

Rating conditions (#)

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

: Indoor Unit Entering Air Temp. 70 °F (21.1 °C) D.B. : Outdoor Ambient Temp. 47 °F (8.3 °C) D.B. / 43 °F (6.1 °C) W.B.

5-5. Air Throw Distance Charts



0 5 10 15 20 25 30



0 5 10 15 20 25 30

Indoor Unit KHS1872

Cooling

Room air temp. : 80°F (26.7°C)

Fan speed : High

Axis air velocity (ft./sec.)

Vertical distance (ft.)

Horizontal distance (ft.)

: Flap angle 0 , : Axis air velocity 0 : Flap angle 30 , : Axis air velocity 30

Heating

Room air temp. :70°F (21.1°C) Fan speed : High

Horizontal distance (ft.)

Axis air velocity (ft./sec.)

Vertical distance (ft.)

: Flap angle 45 , : Axis air velocity 45 : Flap angle 60 , : Axis air velocity 60

Indoor Unit KHS2472



0 5 10 15 20 25 30



0 5 10 15 20 25 30

Cooling

Room air temp. :80 Fan speed : High

Axis air velocity (ft./sec.)

Vertical distance (ft.)

(26.7°C)

°F

Horizontal distance (ft.)

: Flap angle 0 , : Axis air velocity 0 : Flap angle 30 , : Axis air velocity 30

Heating

Room air temp. :70°F (21.1°C) Fan speed : High

Horizontal distance (ft.)

Axis air velocity (ft./sec.)

Vertical distance (ft.)

: Flap angle 45 , : Axis air velocity 45 : Flap angle 60 , : Axis air velocity 60

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