Sanyo CMH3172 - 30,600 BTU Ductless Multi-Split Air Cond/Heat Pump Technical & Service Manual

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Sanyo CMH3172 - 30,600 BTU Ductless Multi-Split Air Cond/Heat Pump Technical & Service Manual | Manualzz

TECHNICAL & SERVICE MANUAL

OUTDOOR UNIT : CMH1972

CMH2472

CMH3172

FILE NO.

Destination: North America

DC INVERTER MULTI-SYSTEM AIR CONDITIONER

Capacity at 230V

19,100 BTU/h

23,200 BTU/h

30,600 BTU/h

Outdoor Model No.

CMH1972

CMH2472

CMH3172

Product Code No.

1 852 330 30

1 852 330 31

1 852 330 32

CMH1972

< Applicable Indoor Units >

‚óŹ

Wall mounted type

KMHS0772

KMHS0972

KMHS1272

KMHS1872

KMHS2472

NOTE

For details about the combination, refer to

"Unit Combination Table" in the Appendix of this manual.

CMH2472

IMPORTANT

These air conditioners employ new refrigerant R410A.

Pay special attention when servicing the unit.

CMH3172

REFERENCE NO.

SM

700660-04

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.

WARNING

This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death.

CAUTION

This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage.

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

WARNING

When Wiring

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

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

ELECTRICAL SHOCK CAN CAUSE

SEVERE PERSONAL INJURY OR DEATH.

ONLY A QUALIFIED, EXPERIENCED

ELECTRICIAN SHOULD ATTEMPT TO

WIRE THIS SYSTEM.

• 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.

Install a protective leakage breaker depending on the installation location (especially a damp or humid location). If a leakage breaker is not installed, electric shock can occur.

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.

2

Table of Contents

APPLICABLE INDOOR UNITS

1. OPERATING RANGE

.....................................................................................................

...................................................................................................................

Page

4

5

2. SPECIFICATIONS

2-1. Unit Specifications

.............................................................................................................

2-2. Major Component Specifications

.......................................................................................

2-3. Other Component Specifications

.......................................................................................

6

12

15

3. DIMENSIONAL DATA

.....................................................................................................................

16

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

...................................................................................................

19

5. PERFORMANCE DATA

5-1. Temperature Charts

5-2. Cooling Capacity

............................................................................................................

................................................................................................................

5-3. Heating Capacity

................................................................................................................

6. ELECTRICAL DATA

6-1. Electric Wiring Diagrams

....................................................................................................

22

36

39

42

7. FUNCTIONS

7-1. Explanation of Functions

7-2. Protective Functions

.....................................................................................................

...........................................................................................................

45

50

8. TROUBLESHOOTING

8-1. Precautions before Performing Inspection or Repair

8-2. Trouble Diagnosis by Error Monitop Lamps

..........................................................

.........................................................................

8-3. Checking the Outdoor System

............................................................................................

8-4. Trouble Diagnosis of Each Part

...........................................................................................

8-5. Trouble Diagnosis of Fan Motor

...........................................................................................

53

54

55

56

60

9. REFRIGERANT R410A:

SPECIAL PRECAUTIONS WHEN SERVICING UNIT

9-1. Characteristics of New Refrigerant R410A

........................................................................

9-2. Checklist before Servicing

...................................................................................................

9-3. Tools Specifically for R410A

................................................................................................

9-4. Tubing Installation Procedures

9-7. Charging Additional Refrigerant

............................................................................................

9-5. In Case of Compressor Malfunction

9-6. In Case Refrigerant is Leaking

....................................................................................

............................................................................................

..........................................................................................

9-8. Retro-Fitting Existing Systems

............................................................................................

63

64

66

67

67

61

62

63

APPENDIX A INSTALLATION INSTRUCTIONS

..............................................................................

APPENDIX B UNIT COMBINATION TABLES

..................................................................................

A-1

A-2

3

APPLICABLE INDOOR UNITS

Indoor Unit

Multi-Outdoor Unit

3-Room CMH1972

KMHS0772

4-Room

4-Room

CMH2472

CMH3172

KMHS0972

YES

YES

YES

KMHS1272 KMHS1872 KMHS2472

YES

YES

YES

YES

YES

YES

NO

YES

YES

NOTE

The table lists the wall-mounted type of indoor units as representative models.

4

1. OPERATING RANGE

Cooling

Heating

Temperature

Maximum

Minimum

Maximum

Minimum

Indoor Air Intake Temp.

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.

Outdoor Air Intake Temp.

115

°F D.B.

67

°F D.B.

75

°F D.B. / 65 °F W.B.

0

°F D.B.

5

2. SPECIFICATIONS

2-1. Unit Specifications

Outdoor Unit

CMH1972

Indoor Unit

KMHS0972

×

3

Type

Number of Connectable Indoor Units

Number of Operatable Indoor Units

3-Room Multi Outdoor Unit

3

3

< 230V >

Voltage Rating

230V Single-Phase 60Hz

Performance

Total Capacity

Sensible Capacity

Latent Capacity

Air Circulation (High)

Electrical Rating

Available Voltage Range

Running Amperes

Power Input

Power Factor

SEER

HSPF

Compressor Locked Rotor Amperes

Fuse or Circuit Breaker Capacity

BTU/h kW

BTU/h

BTU/h ft 3 /min (m 3 /h)

V

A

W

%

BTU/Wh

BTU/Wh

A

A

19,100

5.60

Cooling

( 9,800 to 19,100 )

( 2.90 to 5.60 )

16,300

2,800

1,707 (2,900)

Cooling

187 to 253

Heating

24,800

7.30

( 11,600 to 24,800 )

( 3.40 to 7.30 )

-

-

1,707 (2,900)

Heating

6.7

1,500

98

13

-

7.7

1,735

98

-

7.7

14.5

20

Features (Outdoor Unit)

Control

Fan Speeds

Compressor

Refrigerant / Amount charged at shipment

Refrigerant Control

Operation Sound (High) Cool/Heat

Refrigerant Tubing Connections

Max. allowable tubing length per unit

Refrigerant Narrow tube

Tube Diameter Wide tube

Ib. (g) dB-A ft. (m) inch (mm) inch (mm)

Microprocessor

Auto (Hi, Me, Lo)

DC Twin Rotary (Inverter)

R410A / 6.17 (2,800)

Electric Expansion Valve

50 / 52

Flare Type

82 (25)

1/4 (6.35)

×

3

3/8 (9.52)

×

3

Dimensions & Weight (Outdoor Unit)

Unit Dimensions

Height

×

Width

×

Depth

Package Dimensions

Height

×

Width

×

Depth

Weight Net

Shipping Volume

Shipping inch

(mm) inch

(mm)

Ib. (kg)

Ib. (kg) cu.ft (m 3 )

29-1/8

×

35-7/16

×

12-19/32

(740

×

900

×

320)

33-27/32

×

40-5/8

×

16-1/4

(860

×

1,032

×

413)

143.3

(65.0)

152.1

12.71

(69.0)

(0.36)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks:

1. The Values shown in performance section and electrical rating section above are based on the following unit combination.

For other combination unit, please refer to the "Unit Combination Tables" in this manual.

Indoor Unit : KMHS0972 3units Outdoor Unit : CMH1972 1unit

2. Rating conditions are: Cooling : Indoor air temp.

80

°F D.B./ 67°F W.B

Heating : Indoor air temp.

70

°F D.B.

Outdoor air temp. 95

°F D.B./ 75°F W.B.

Outdoor air temp. 47

°F D.B./ 43°F W.B.

6

Outdoor Unit

CMH1972

Indoor Unit

KMHS0972

×

3

Type

Number of Connectable Indoor Units

Number of Operatable Indoor Units

3-Room Multi Outdoor Unit

3

3

< 208V >

Voltage Rating

208V Single-Phase 60Hz

Performance

Total Capacity

Sensible Capacity

Latent Capacity

Air Circulation (High)

Electrical Rating

Available Voltage Range

Running Amperes

Power Input

Power Factor

SEER

HSPF

Compressor Locked Rotor Amperes

Fuse or Circuit Breaker Capacity

BTU/h kW

BTU/h

BTU/h ft 3 /min (m 3 /h)

V

A

W

%

BTU/Wh

BTU/Wh

A

A

19,100

5.60

Cooling

( 9,800 to 19,100 )

( 2.90 to 5.60 )

16,300

2,800

1,707 (2,900)

Cooling

187 to 253

Heating

24,800

7.30

( 11,600 to 24,800 )

( 3.40 to 7.30 )

-

-

1,707 (2,900)

Heating

7.4

1,500

98

13

-

8.5

1,735

98

-

7.7

14.5

20

Features (Outdoor Unit)

Control

Fan Speeds

Compressor

Refrigerant / Amount charged at shipment

Refrigerant Control

Operation Sound (High) Cool/Heat

Refrigerant Tubing Connections

Max. allowable tubing length per unit

Refrigerant Narrow tube

Tube Diameter Wide tube

Ib. (g) dB-A ft. (m) inch (mm) inch (mm)

Microprocessor

Auto (Hi, Me, Lo)

DC Twin Rotary (Inverter)

R410A / 6.17 (2,800)

Electric Expansion Valve

50 / 52

Flare Type

82 (25)

1/4 (6.35)

×

3

3/8 (9.52)

×

3

Dimensions & Weight (Outdoor Unit)

Unit Dimensions

Height

×

Width

×

Depth

Package Dimensions

Height

×

Width

×

Depth

Weight Net

Shipping Volume

Shipping inch

(mm) inch

(mm)

Ib. (kg)

Ib. (kg) cu.ft (m 3 )

29-1/8

×

35-7/16

×

12-19/32

(740

×

900

×

320)

33-27/32

×

40-5/8

×

16-1/4

(860

×

1,032

×

413)

143.3

(65.0)

152.1

12.71

(69.0)

(0.36)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks:

1. The Values shown in performance section and electrical rating section above are based on the following unit combination.

For other combination unit, please refer to the "Unit Combination Tables" in this manual.

Indoor Unit : KMHS0972 3units Outdoor Unit : CMH1972 1unit

2. Rating conditions are: Cooling : Indoor air temp.

80

°F D.B./ 67°F W.B

Heating : Indoor air temp.

70

°F D.B.

Outdoor air temp. 95

°F D.B./ 75°F W.B.

Outdoor air temp. 47

°F D.B./ 43°F W.B.

7

Outdoor Unit

CMH2472

Indoor Unit

KMHS0972

×

3

Type

Number of Connectable Indoor Units

Number of Operatable Indoor Units

4-Room Multi Outdoor Unit

4

3

< 230V >

Voltage Rating

230V Single-Phase 60Hz

Performance

Total Capacity

Sensible Capacity

Latent Capacity

Air Circulation (High)

Electrical Rating

Available Voltage Range

Running Amperes

Power Input

Power Factor

SEER

HSPF

Compressor Locked Rotor Amperes

Fuse or Circuit Breaker Capacity

BTU/h kW

BTU/h

BTU/h ft 3 /min (m 3 /h)

V

A

W

%

BTU/Wh

BTU/Wh

A

A

23,200

6.80

Cooling

( 9,800 to 23,200 )

( 2.90 to 6.80 )

19,600

3,600

1,707 (2,900)

Cooling

187 to 253

Heating

29,200

8.60

( 11,600 to 29,200 )

( 3.40 to 8.60 )

-

-

1,707 (2,900)

Heating

9.0

2,040

98

13

-

10.1

2,270

98

-

7.7

14.5

20

Features (Outdoor Unit)

Control

Fan Speeds

Compressor

Refrigerant / Amount charged at shipment

Refrigerant Control

Operation Sound (High) Cool/Heat

Refrigerant Tubing Connections

Max. allowable tubing length per unit

Refrigerant Narrow tube

Tube Diameter Wide tube

Ib. (g) dB-A ft. (m) inch (mm) inch (mm)

Microprocessor

Auto (Hi, Me, Lo)

DC Twin Rotary (Inverter)

R410A / 6.17 (2,800)

Electric Expansion Valve

50 / 52

Flare Type

82 (25)

1/4 (6.35)

×

4

3/8 (9.52)

×

3 + 1/2 (12.7)

×

1

Dimensions & Weight (Outdoor Unit)

Unit Dimensions

Height

×

Width

×

Depth

Package Dimensions

Height

×

Width

×

Depth

Weight Net

Shipping Volume

Shipping inch

(mm) inch

(mm)

Ib. (kg)

Ib. (kg) cu.ft (m 3 )

29-1/8

×

35-7/16

×

12-19/32

(740

×

900

×

320)

33-27/32

×

40-5/8

×

16-1/4

(860

×

1,032

×

413)

143.3

(65.0)

152.1

12.71

(69.0)

(0.36)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks:

1. The Values shown in performance section and electrical rating section above are based on the following unit combination.

For other combination unit, please refer to the "Unit Combination Tables" in this manual.

Indoor Unit : KMHS0972 3units Outdoor Unit : CMH2472 1unit

2. Rating conditions are: Cooling : Indoor air temp.

80

°F D.B./ 67°F W.B

Heating : Indoor air temp.

70

°F D.B.

Outdoor air temp. 95

°F D.B./ 75°F W.B.

Outdoor air temp. 47

°F D.B./ 43°F W.B.

8

Outdoor Unit

CMH2472

Indoor Unit

KMHS0972

×

3

Type

Number of Connectable Indoor Units

Number of Operatable Indoor Units

4-Room Multi Outdoor Unit

4

3

< 208V >

Voltage Rating

208V Single-Phase 60Hz

Performance

Total Capacity

Sensible Capacity

Latent Capacity

Air Circulation (High)

Electrical Rating

Available Voltage Range

Running Amperes

Power Input

Power Factor

SEER

HSPF

Compressor Locked Rotor Amperes

Fuse or Circuit Breaker Capacity

BTU/h kW

BTU/h

BTU/h ft 3 /min (m 3 /h)

V

A

W

%

BTU/Wh

BTU/Wh

A

A

23,200

6.80

Cooling

( 9,800 to 23,200 )

( 2.90 to 6.80 )

19,600

3,600

1,707 (2,900)

Cooling

187 to 253

Heating

29,200

8.60

( 11,600 to 29,200 )

( 3.40 to 8.60 )

-

-

1,707 (2,900)

Heating

10.0

2,040

98

13

-

11.1

2,270

98

-

7.7

14.5

20

Features (Outdoor Unit)

Control

Fan Speeds

Compressor

Refrigerant / Amount charged at shipment

Refrigerant Control

Operation Sound (High) Cool/Heat

Refrigerant Tubing Connections

Max. allowable tubing length per unit

Refrigerant Narrow tube

Tube Diameter Wide tube

Ib. (g) dB-A ft. (m) inch (mm) inch (mm)

Microprocessor

Auto (Hi, Me, Lo)

DC Twin Rotary (Inverter)

R410A / 6.17 (2,800)

Electric Expansion Valve

50 / 52

Flare Type

82 (25)

1/4 (6.35)

×

4

3/8 (9.52)

×

3 + 1/2 (12.7)

×

1

Dimensions & Weight (Outdoor Unit)

Unit Dimensions

Height

×

Width

×

Depth

Package Dimensions

Height

×

Width

×

Depth

Weight Net

Shipping Volume

Shipping inch

(mm) inch

(mm)

Ib. (kg)

Ib. (kg) cu.ft (m 3 )

29-1/8

×

35-7/16

×

12-19/32

(740

×

900

×

320)

33-27/32

×

40-5/8

×

16-1/4

(860

×

1,032

×

413)

143.3

(65.0)

152.1

12.71

(69.0)

(0.36)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks:

1. The Values shown in performance section and electrical rating section above are based on the following unit combination.

For other combination unit, please refer to the "Unit Combination Tables" in this manual.

Indoor Unit : KMHS0972 3units Outdoor Unit : CMH2472 1unit

2. Rating conditions are: Cooling : Indoor air temp.

80

°F D.B./ 67°F W.B

Heating : Indoor air temp.

70

°F D.B.

Outdoor air temp. 95

°F D.B./ 75°F W.B.

Outdoor air temp. 47

°F D.B./ 43°F W.B.

9

Outdoor Unit

CMH3172

Indoor Unit

KMHS0972

×

4

Type

Number of Connectable Indoor Units

Number of Operatable Indoor Units

4-Room Multi Outdoor Unit

4

4

< 230V >

Voltage Rating

230V Single-Phase 60Hz

Performance

Total Capacity

Sensible Capacity

Latent Capacity

Air Circulation (High)

Electrical Rating

Available Voltage Range

Running Amperes

Power Input

Power Factor

SEER

HSPF

Compressor Locked Rotor Amperes

Fuse or Circuit Breaker Capacity

BTU/h kW

BTU/h

BTU/h ft 3 /min (m 3 /h)

V

A

W

%

BTU/Wh

BTU/Wh

A

A

30,600

9.00

Cooling

( 9,800 to 30,600 )

( 2.90 to 9.00 )

25,800

4,800

1,942 (3,300)

Cooling

187 to 253

Heating

32,000

9.40

( 11,600 to 32,000 )

( 3.40 to 9.40 )

-

-

1,807 (3,070)

Heating

12.3

2,800

99

16

-

10.3

2,350

99

-

7.7

17.0

20

Features (Outdoor Unit)

Control

Fan Speeds

Compressor

Refrigerant / Amount charged at shipment

Refrigerant Control

Operation Sound (High) Cool/Heat

Refrigerant Tubing Connections

Max. allowable tubing length per unit

Refrigerant Narrow tube

Tube Diameter Wide tube

Ib. (g) dB-A ft. (m) inch (mm) inch (mm)

Microprocessor

Auto (Hi, Me, Lo)

DC Twin Rotary (Inverter)

R410A / 8.38 (3,800)

Electric Expansion Valve

53 / 52

Flare Type

100 (30.5)

1/4 (6.35)

×

4

3/8 (9.52)

×

2 + 1/2 (12.7)

×

2

Dimensions & Weight (Outdoor Unit)

Unit Dimensions

Height

×

Width

×

Depth

Package Dimensions

Height

×

Width

×

Depth

Weight Net

Shipping Volume

Shipping inch

(mm) inch

(mm)

Ib. (kg)

Ib. (kg) cu.ft (m 3 )

35-1/32

×

35-7/16

×

12-19/32

(890

×

900

×

320)

39-3/4

×

40-5/8

×

16-1/4

(1,010

×

1,032

×

413)

180.8

(82.0)

189.6

15.18

(86.0)

(0.43)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks:

1. The Values shown in performance section and electrical rating section above are based on the following unit combination.

For other combination unit, please refer to the "Unit Combination Tables" in this manual.

Indoor Unit : KMHS0972 4units Outdoor Unit : CMH3172 1unit

2. Rating conditions are: Cooling : Indoor air temp.

80

°F D.B./ 67°F W.B

Heating : Indoor air temp.

70

°F D.B.

Outdoor air temp. 95

°F D.B./ 75°F W.B.

Outdoor air temp. 47

°F D.B./ 43°F W.B.

10

Outdoor Unit

CMH3172

Indoor Unit

KMHS0972

×

4

Type

Number of Connectable Indoor Units

Number of Operatable Indoor Units

4-Room Multi Outdoor Unit

4

4

< 208V >

Voltage Rating

208V Single-Phase 60Hz

Performance

Total Capacity

Sensible Capacity

Latent Capacity

Air Circulation (High)

Electrical Rating

Available Voltage Range

Running Amperes

Power Input

Power Factor

SEER

HSPF

Compressor Locked Rotor Amperes

Fuse or Circuit Breaker Capacity

BTU/h kW

BTU/h

BTU/h ft 3 /min (m 3 /h)

V

A

W

%

BTU/Wh

BTU/Wh

A

A

28,600

8.40

Cooling

( 9,800 to 28,600 )

( 2.90 to 8.40 )

24,200

4,400

1,942 (3,300)

Cooling

187 to 253

Heating

32,000

9.40

( 11,600 to 32,000 )

( 3.40 to 9.40 )

-

-

1,807 (3,070)

Heating

13.6

2,800

99

16

-

11.4

2,350

99

-

7.7

17.0

20

Features (Outdoor Unit)

Control

Fan Speeds

Compressor

Refrigerant / Amount charged at shipment

Refrigerant Control

Operation Sound (High) Cool/Heat

Refrigerant Tubing Connections

Max. allowable tubing length per uint

Refrigerant Narrow tube

Tube Diameter Wide tube

Ib. (g) dB-A ft. (m) inch (mm) inch (mm)

Microprocessor

Auto (Hi, Me, Lo)

DC Twin Rotary (Inverter)

R410A / 8.38 (3,800)

Electric Expansion Valve

53 / 52

Flare Type

100 (30.5)

1/4 (6.35)

×

4

3/8 (9.52)

×

2 + 1/2 (12.7)

×

2

Dimensions & Weight (Outdoor Unit)

Unit Dimensions

Height

×

Width

×

Depth

Package Dimensions

Height

×

Width

×

Depth

Weight Net

Shipping Volume

Shipping inch

(mm) inch

(mm)

Ib. (kg)

Ib. (kg) cu.ft (m 3 )

35-1/32

×

35-7/16

×

12-19/32

(890

×

900

×

320)

39-3/4

×

40-5/8

×

16-1/4

(1,010

×

1,032

×

413)

180.8

(82.0)

189.6

15.18

(86.0)

(0.43)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks:

1. The Values shown in performance section and electrical rating section above are based on the following unit combination.

For other combination unit, please refer to the "Unit Combination Tables" in this manual.

Indoor Unit : KMHS0972 4units Outdoor Unit : CMH3172 1unit

2. Rating conditions are: Cooling : Indoor air temp.

80

°F D.B./ 67°F W.B

Heating : Indoor air temp.

70

°F D.B.

Outdoor air temp. 95

°F D.B./ 75°F W.B.

Outdoor air temp. 47

°F D.B./ 43°F W.B.

11

2-2. Major Component Specifications

2-2-1. Outdoor Unit

Outdoor Unit

CMH1972

Control PCB

Part No.

Controls

Control Circuit Fuse

Compressor

Type

Compressor Model / Nominal Output

Compressor Oil ... Amount Pints (cc)

Coil Resistance (Ambient Temp. 68

°F (20 °C)) Ohm

Safety Device

CT (Peak current cut-off control)

Compressor Discharge Temp. Control

Operation cut-off control in abnormal ambient Temp.

Overload Relay Model

Operation Temp.

Run Capacitor

Micro F

VAC

Crankcase Heater

Fan

Type

Q'ty ... Dia.

Fan Motor

Type

Model ... Q'ty

No. of Poles

Rough Measure RPM (Cool / Heat)

Nominal Output

Coil Resistance

(Ambient Temp. 68

°F (20 °C)) inch (mm)

W

Ohm

Safety Device

Type

Over-Current Protection

Over-Heat Protection

Run Capacitor Micro F

VAC

Heat Exchanger Coil

Coil

Rows

Fins per inch

Face Area

External Finish

ft 2 (m 2 )

12

CB-CMH1972

Microprocessor

250V 25A

DC Twin Rotary (Hermetic)

5KD240XAB21 / 1,700W

FV50S ... 1.91 (900)

U - V : 0.720

V - W : 0.708

W - U : 0.726

Yes

Yes

Yes

CS-7LN115

Open : 239

°F (115 °C), Close : 212 °F (100 °C)

-

-

230V 30W

Propeller

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

DC Motor

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

8

750 / 750

90

-

Internal Controller

Yes

Yes

-

-

Aluminum Plate Fin / Copper Tube

2

18.1

6.40 (0.595)

Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Outdoor Unit

CMH2472

Control PCB

Part No.

Controls

Control Circuit Fuse

Compressor

Type

Compressor Model / Nominal Output

Compressor Oil ... Amount Pints (cc)

Coil Resistance (Ambient Temp. 68

°F (20 °C)) Ohm

Safety Device

CT (Peak current cut-off control)

Compressor Discharge Temp. Control

Operation cut-off control in abnormal ambient Temp.

Overload Relay Model

Operation Temp.

Run Capacitor

Micro F

VAC

Crankcase Heater

Fan

Type

Q'ty ... Dia.

Fan Motor

Type

Model ... Q'ty

No. of Poles

Rough Measure RPM (Cool / Heat)

Nominal Output

Coil Resistance

(Ambient Temp. 68

°F (20 °C)) inch (mm)

W

Ohm

Safety Device

Type

Over-Current Protection

Over-Heat Protection

Run Capacitor Micro F

VAC

Heat Exchanger Coil

Coil

Rows

Fins per inch

Face Area

External Finish

ft 2 (m 2 )

13

CB-CMH2472

Microprocessor

250V 25A

DC Twin Rotary (Hermetic)

5KD240XAB21 / 1,700W

FV50S ... 1.91 (900)

U - V : 0.720

V - W : 0.708

W - U : 0.726

Yes

Yes

Yes

CS-7LN115

Open : 239

°F (115 °C), Close : 212 °F (100 °C)

-

-

230V 30W

Propeller

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

DC Motor

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

8

750 / 750

90

-

Internal Controller

Yes

Yes

-

-

Aluminum Plate Fin / Copper Tube

2

18.1

6.40 (0.595)

Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Outdoor Unit

CMH3172

Control PCB

Part No.

Controls

Control Circuit Fuse

Compressor

Type

Compressor Model / Nominal Output

Compressor Oil ... Amount Pints (cc)

Coil Resistance (Ambient Temp. 68

°F (20 °C)) Ohm

Safety Device

CT (Peak current cut-off control)

Compressor Discharge Temp. Control

Operation cut-off control in abnormal ambient Temp.

Overload Relay Model

Operation Temp.

Run Capacitor

Micro F

VAC

Crankcase Heater

Fan

Type

Q'ty ... Dia.

Fan Motor

Type

Model ... Q'ty

No. of Poles

Rough Measure RPM (Cool / Heat)

Nominal Output

Coil Resistance

(Ambient Temp. 68

°F (20 °C)) inch (mm)

W

Ohm

Safety Device

Type

Over-Current Protection

Over-Heat Protection

Run Capacitor Micro F

VAC

Heat Exchanger Coil

Coil

Rows

Fins per inch

Face Area

External Finish

ft 2 (m 2 )

14

CB-CMH3172

Microprocessor

250V 25A

DC Twin Rotary (Hermetic)

5JD420XAB22 / 3,000W

FV50S ... 2.55 (1,200)

U - V : 0.435

V - W : 0.441

W - U : 0.452

Yes

Yes

Yes

CS-7LN115

Open : 239

°F (115 °C), Close : 212 °F (100 °C)

-

-

230V 30W

Propeller

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

DC Motor

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

8

800 / 750

90

-

Internal Controller

Yes

Yes

-

-

Aluminum Plate Fin / Copper Tube

2

18.1

7.75 (0.72)

Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

2-3. Other Component Specifications

Sensor Name

Outdoor air temp sensor

Outdoor heat exchanger sensor

AW / AN sensor

BW / BN sensor

CW / CN sensor

DW / DN sensor

Model No.

of sensor

TKS295B

TKS292B

TKS292B

TKS292B

TKS292B

TKS292B

CMH1972

1

1

1 / 1

1 / 1

1 / 1

0

Quantity of Sensor

CMH2472

1

1

1 / 1

1 / 1

1 / 1

1 / 1

40

35

30

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)

Sensor Name

Compressor temp sensor

Model No.

of sensor

TKS293B

CMH1972

1

Quantity of Sensor

CMH2472

1

200

180

160

140

120

100

80

60

40

20

0

32 50 68 86 104 122 140 158 176 194

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

Temperature F ( C)

15

CMH3172

1

1

1 / 1

1 / 1

1 / 1

1 / 1

CMH3172

1

3. DIMENSIONAL DATA

Outdoor Unit CMH1972

11-17/32

ID

:23/32

23-15/16

5-ID:15/16

5-11/32

15/32

35-7/16(900) 2-15/16

Wide tube service valve dia.3/8" (9.52)

× 3

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

× 3

1-13/16

2-1/16

2-1/32 4-1/2

Unit: inch(mm)

16

Outdoor Unit CMH2472

11-17/32

ID:23/32

23-15/16

5-ID:15/16

5-11/32

15/32

35-7/16(900) 2-15/16

Wide tube service valve dia.3/8" (9.52)

× 3

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

× 4

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

× 1

1-13/16

2-1/16

2-13/32

2-1/32 4-1/2

Unit: inch(mm)

17

Outdoor Unit CMH3172

11-17/32

ID

:23/32

23-15/16

5-ID:15/16

5-11/32

15/32

35-7/16(900) 2-15/16

Wide tube service valve dia.3/8" (9.52)

× 2

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

× 4

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

× 2

1-13/16

2-1/16

2-13/32

2-1/32 4-1/2

Unit: inch(mm)

18

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

Outdoor Unit CMH1972

Indoor unit

Wide tube

O.D.3/8"

O.D.3/8"

O.D.3/8"

Service valve on wide tube

CW

BW

AW

Header

Outdoor unit

Sub accumulator

Main accumulator

High pressure switch

H.P.

4-way valve

Narrow tube

O.D.1/4"

O.D.1/4"

O.D.1/4"

Service valve on narrow tube

CN

BN

Electric expansion valve

M

M

AN

Strainer

M

Header

Defrost valve for hot gas bypass

S

Cooling cycle

Heating cycle

Defrosting 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).

Thickness:

Min.5/16"(8 mm)

CAUTION

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

Insulation

Thickness:

Min.5/16"(8 mm)

Narrow tube

19

Outdoor Unit CMH2472

Indoor unit

Wide tube

O.D.3/8"

O.D.3/8"

O.D.3/8"

O.D.1/2"

Service valve on wide tube

DW

CW

BW

AW

Header

Outdoor unit

Sub accumulator

Main accumulator

4-way valve

High pressure switch

H.P.

Narrow tube

O.D.1/4"

O.D.1/4"

O.D.1/4"

O.D.1/4"

Service valve on narrow tube

DN

CN

BN

AN

Strainer

Electric expansion valve

M

Defrost valve for hot gas bypass

S

M

M

M

Header

Cooling cycle

Heating cycle

Defrosting 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).

Thickness:

Min.5/16"(8 mm)

CAUTION

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

Insulation

Thickness:

Min.5/16"(8 mm)

Narrow tube

20

Outdoor Unit CMH3172

Indoor unit

Wide tube

O.D.3/8"

O.D.3/8"

O.D.1/2"

O.D.1/2"

Service valve on wide tube

DW

CW

BW

AW

Header

Outdoor unit

Sub accumulator

Main accumulator

High pressure switch

H.P.

4-way valve

Narrow tube

O.D.1/4"

Service valve on narrow tube

DN

CN

O.D.1/4"

BN

O.D.1/4"

AN

O.D.1/4"

Strainer

Electric expansion valve

M

M

M

M

Header

Defrost valve for hot gas bypass

S

Cooling cycle

Heating cycle

Defrosting 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).

Thickness:

Min.5/16"(8 mm)

CAUTION

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

Insulation

Thickness:

Min.5/16"(8 mm)

Narrow tube

21

5. PERFORMANCE DATA

5-1. Temperature Charts

5-1-1. Temperature Charts (CMH1972)

Outdoor Unit CMH1972 Indoor Unit KMHS0772

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

188

(1.3)

174

(1.2)

160

(1.1)

Lo fan Hi fan

Indoor air tem p. 86

°F (30

°C)

F (27

°C)

80°

75°

F (24

°C)

HH fan

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

506

(3.5)

434

(3.0)

Indoor air temp. 73

°F (23°

C)

°C)

362

(2.5)

146

(1.0)77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(2) Operating current performance chart

Lo fan Hi fan

5

104

(40)

HH fan

290

(2.0)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(2) Operating current performance chart

8

77

(25)

7

4

3

Indoor air temp. 86

80°F (27°

C)

75°F (24°

C)

°F (30°C)

6

Indoor air tem p. 73°F (23°

Indoor air temp. 73

C)

70

°F (21°C)

63

°F (17°C)

5

2

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(3) Indoor discharge air performance chart

104

(40)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

77

(25)

Lo fan Hi fan

Indoor air temp. 86

°F (30°

80°F (27

75°F (24

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

HH fan

C)

°C)

°C)

104

(40)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(3) Indoor discharge air performance chart

140(60)

131(55)

122(50)

113(45)

Indoor air tem p. 73

°F (23

70°

F (21

63°

F (17

°C)

°C)

°C)

104(40)

95(35)

86(30)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6t (7.5m). If the tubing length is different, the performance chart will vary.

22

Outdoor Unit CMH1972 Indoor Unit KMHS0972

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

Lo fan Hi fan HH fan

188

(1.3)

174

(1.2)

160

(1.1)

80°F (27

75°F (24

°C)

°F (30°

C)

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

506

(3.5)

434

(3.0)

F (23

C)

F (21

°C)

70°

F (21

Indoor air temp. 73

F (21

63°

F (17

°C)

362

(2.5)

146

(1.0)77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

290

(2.0)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

(2) Operating current performance chart (2) Operating current performance chart

8

Lo fan Hi fan HH fan

6

7

5

°F (23°

C)

C)

Indoor air temp. 73

63°F (17

°C)

4

Indoor air temp. 86

80°

F (27

°C)

75°

F (24

°C)

°F (30

°C)

6

5

3

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

(3) Indoor discharge air performance chart (3) Indoor discharge air performance chart

140(60)

Lo fan Hi fan HH fan

68.0(20) 131(55)

64.4(18)

60.8(16)

122(50)

113(45)

°F (23°

C)

C)

Indoor air temp. 73

63°F (17

°C)

57.2(14)

53.6(12)

50.0(10)

°F (30°

C)

Indoor air temp. 86

80°F (27

°C)

75°F (24

°C)

104(40)

95(35)

86(30)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

23

Outdoor Unit CMH1972 Indoor Unit KMHS1272

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

578

(4.0)

174

(1.2)

160

(1.1)

Lo fan Hi fan HH fan

Indoor air temp. 86

80°F (27

°C)

75°F (24

°C)

°F (30°

C)

506

(3.5)

°F (23

°C)

434

(3.0)

146

(1.0)

362

(2.5)

Indoor air temp. 73

70°

F (21

63°

F (17

°C)

°C)

132

(0.9)77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

(2) Operating current performance chart (2) Operating current performance chart

10

Lo fan Hi fan HH fan

6

5

4

3

77

(25)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

80°F (27

75°F (24

°C)

°F (30

°C)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(3) Indoor discharge air performance chart

Lo fan Hi fan

Indoor air tem p. 86°F (30

°C)

80°F (27°

C)

75°F (24°

C)

104

(40)

HH fan

3

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(3) Indoor discharge air performance chart

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

9

8

7

6

5

4

70°

°F (23

°C)

F (21

63°

F (17

°C)

°C)

70°

F (21

63°

Indoor air temp. 73

°C)

77

(25)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

24

Outdoor Unit CMH1972 Indoor Unit KMHS1872

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

174

(1.2)

160

(1.1)

Lo fan Hi fan

Indoor air temp. 86

80°F (27

°C)

75°F (24

°C)

°F (30

°C)

HH fan

146

(1.0)

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

578

(4.0)

506

(3.5)

434

(3.0)

°F (23

°C)

70°

Indoor air temp. 73

F (21

°C)

70°

F (21

63°

F (17

°C)

132

(0.9)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

362

(2.5)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

(2) Operating current performance chart

8

Lo fan Hi fan HH fan

(2) Operating current performance chart

7

6

80°

F (27

75°

F (24

°C)

°F (30

°C)

12

11

10

9

8

7

°F (23

°C)

°F (23

F (21

°C)

Indoor air temp. 73

63°

F (21

F (17

°C)

5

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(3) Indoor discharge air performance chart

Lo fan Hi fan

104

(40)

HH fan

Indoor air temp. 86

°F (30°C)

80

°F (27°C)

75

°F (24°C)

6

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(3) Indoor discharge air performance chart

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

°F (23

°C)

70°

63°

F (21

C)

F (17

°C)

77

(25)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

25

5-1-2. Temperature Charts (CMH2472)

Outdoor Unit CMH2472 Indoor Unit KMHS0772

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

188

(1.3)

174

(1.2)

160

(1.1)

Lo fan Hi fan

°F (30

°C)

HH fan

°C)

80°

F (27

75°

F (2

4°C

)

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

506

(3.5)

434

(3.0)

°F (23°

C)

C)

Indoor air temp. 73

63°F (17

°C)

362

(2.5)

146

(1.0)77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(2) Operating current performance chart

104

(40)

290

(2.0)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(2) Operating current performance chart

8

77

(25)

Lo fan Hi fan HH fan

5

7

4

°F (30°C)

6

Indoor air temp. 73

70

63

°F (23°C)

°F (21°C)

°F (17

3

80°F (27

75°F (24

°C)

5

2

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(3) Indoor discharge air performance chart

104

(40)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

77

(25)

Lo fan Hi fan

Indoor air temp. 86

°F (30°

80°F (27

75°F (24

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

HH fan

C)

°C)

°C)

104

(40)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(3) Indoor discharge air performance chart

140(60)

131(55)

122(50)

Indoor air tem p. 73

70°

63°

°F (23

F (21

F (17

°C)

°C)

°C)

113(45)

104(40)

95(35)

86(30)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6t (7.5m). If the tubing length is different, the performance chart will vary.

26

Outdoor Unit CMH2472 Indoor Unit KMHS0972

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

Lo fan Hi fan HH fan

188

(1.3)

174

(1.2)

160

(1.1)

80°F (27

75°F (24

°C)

°F (30°

C)

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

506

(3.5)

434

(3.0)

Indoor air tem p. 73

°F (23

70°

F (21

F (17

°C)

°C)

°C)

362

(2.5)

146

(1.0)77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(2) Operating current performance chart

104

(40)

290

(2.0)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(2) Operating current performance chart

8

77

(25)

Lo fan Hi fan HH fan

6

7

5

Indoor air temp. 73

°F (23°

F (21°

C)

C)

F (17°

C) p. 86

°F (30

°C)

6

4

80°

F (27

75°

F (24

°C)

5

3

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

(3) Indoor discharge air performance chart (3) Indoor discharge air performance chart

140(60)

Lo fan Hi fan HH fan

68.0(20) 131(55)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

°F (30°

C)

Indoor air temp. 86

80°F (27

°C)

75°F (24

°C)

122(50)

113(45)

104(40)

95(35)

86(30)

Indoor air temp. 73

°F (23°

C)

C)

F (17°

C)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

27

Outdoor Unit CMH2472 Indoor Unit KMHS1272

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

578

(4.0)

174

(1.2)

160

(1.1)

Lo fan Hi fan HH fan

Indoor air temp. 86

80°F (27

°C)

75°F (24

°C)

°F (30°

C)

506

(3.5)

434

(3.0)

70°

63°

°F (23

°C)

°C)

F (21

F (17

146

(1.0)

362

(2.5)

132

(0.9)77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

(2) Operating current performance chart (2) Operating current performance chart

10

Lo fan Hi fan HH fan

6

5

4

3

77

(25)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

80°

F (27

°C)

75°

F (24

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

°F (30

°C)

(3) Indoor discharge air performance chart

Lo fan Hi fan

104

(40)

HH fan

Indoor air tem p. 86°F (30

°C)

80°F (27

°C)

75°F (24

°C)

3

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(3) Indoor discharge air performance chart

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

9

8

7

6

5

4

°F (23

°C)

°C)

70°

F (21

Indoor air temp. 73

63°

F (17

°C)

°C

)

70°

Indoor air temp. 73

63

F (21

F (17

°C)

77

(25)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

28

Outdoor Unit CMH2472 Indoor Unit KMHS1872

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

174

(1.2)

160

(1.1)

Lo fan Hi fan p. 86°

F (30

°C)

Indoor air tem

80°F (27

°C)

°C)

75°F (24

HH fan

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

578

(4.0)

506

(3.5)

146

(1.0)

434

(3.0)

F (23

C)

70°

63°

F (21

F (17

°C)

°C)

132

(0.9)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

362

(2.5)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

(2) Operating current performance chart

8

Lo fan Hi fan HH fan

(2) Operating current performance chart

7

6

5

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

77

(25)

Indoor air temp. 86

°C)

80°

F (27

75°

F (24

°C)

°F (30

°C)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(3) Indoor discharge air performance chart

Lo fan Hi fan

104

(40)

HH fan

Indoor air tem p. 86°F (30°

C)

80

°F (27°C)

75

°F (24°C)

12

11

10

9

8

7

°F (23

70°

F (21

°C)

°C)

F (17

°C)

6

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(3) Indoor discharge air performance chart

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

F (21

°C)

°C)

63°

F (17

°C)

77

(25)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

29

Outdoor Unit CMH2472 Indoor Unit KMHS2472

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

174

(1.2)

160

(1.1)

146

(1.0)

Lo fan Hi fan HH fan

°F (30°

C)

Indoor air temp. 86

80°F (27

°C)

75°F (24

°C)

578

(4.0)

506

(3.5)

434

(3.0) p. 73

°F (23

°C)

70°

F (21

°C)

63°

F (17

°C)

132

(0.9)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

362

(2.5)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

(2) Operating current performance chart

9

Lo fan Hi fan

°F (30

°C)

HH fan

8

7

Indoor air temp. 86

80°

F (27

°C)

75°

F (24

°C)

(2) Operating current performance chart

14

13

12

11

10

9

70°

F (21

°C)

63°

F (17

°C)

°F (23

°C)

6

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(3) Indoor discharge air performance chart

Lo fan Hi fan

104

(40)

HH fan

Indoor air temp. 86

°F (30

°C)

80°F (27

°C)

75°F (24

°C)

8

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(3) Indoor discharge air performance chart

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

70°

F (21

°C)

63°

F (17

°F (23

°C)

77

(25)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

30

5-1-3. Temperature Charts (CMH3172)

Outdoor Unit CMH3172 Indoor Unit KMHS0772

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

174

(1.2)

146

(1.0)

118

(0.8)

Lo fan Hi fan Hi fan HH fan

Indoor air temp. 86

°F (30°C)

80

°F (27°C)

75

°F (24°C)

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

506

(3.5)

434

(3.0)

70

°F (21

Indoor air temp. 73

63

°F (17

°C)

362

(2.5)

290

(2.0)

90

(0.6)

77

(25)

4

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(2) Operating current performance chart

5

Lo fan Hi fan Hi fan

104

(40)

HH fan

Indoor air temp. 86

°F (30

°C)

80°

F (27

°C)

75°

F (24

°C)

218

(1.5)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(2) Operating current performance chart

9

77

(25)

8

7

6

5

70

°F (21

°C)

63

°F (17

°F (23

°C)

3

77

(25)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(3) Indoor discharge air performance chart

Lo fan Hi fan Hi fan

104

(40)

HH fan

Indoor air temp. 86

°F (30°C)

80

°F (27°C)

75

°F (24°C)

4

23

(-5)

(3) Indoor discharge air performance chart

140(60)

131(55)

122(50)

70°

°F (23

F (21

°C)

°C)

°C)

Indoor air temp. 73

63°

F (17

113(45)

104(40)

95(35)

86(30)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

31

Outdoor Unit CMH3172 Indoor Unit KMHS0972

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

Lo fan Hi fan Hi fan HH fan

174

(1.2)

146

(1.0)

Indoor air temp. 86

°F (30°C)

80

°F (27°C)

75

°F (24°C)

118

(0.8)

90

(0.6)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

(2) Operating current performance chart

5

Lo fan Hi fan Hi fan HH fan

4

Indoor air temp. 86

°F (30

°C)

80°

F (27

75°

F (24

°C)

°C)

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

506

(3.5)

434

(3.0)

362

(2.5)

70

°F (21

Indoor air temp. 73

°F (17

°C)

290

(2.0)

218

(1.5)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(2) Operating current performance chart

8

7

°F (23

°C)

70

F (21

Indoor air temp. 73

63

77

(25)

6

5

3

77

(25)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(3) Indoor discharge air performance chart

Lo fan Hi fan Hi fan

104

(40)

HH fan

Indoor air temp. 86

°F (30°C)

80°F (27°

C)

75

°F (24°C)

4

23

(-5)

(3) Indoor discharge air performance chart

140(60)

131(55)

122(50)

113(45)

°F (23

°C)

°C)

70°

Indoor air temp. 73

F (21

63°

F (17

°C)

104(40)

95(35)

86(30)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

32

Outdoor Unit CMH3172 Indoor Unit KMHS1272

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

174

(1.2)

146

(1.0)

118

(0.8)

Lo fan Hi fan Hi fan HH fan

Indoor air temp. 86

°F (30°C)

80

°F (27°C)

75

°F (24°C)

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

506

(3.5)

°C)

434

(3.0)

70°

F (21

°C)

362

(2.5)

290

(2.0)

90

(0.6) 77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

(2) Operating current performance chart

6

Lo fan Hi fan Hi fan

5

HH fan

Indoor air temp. 86

°F (30

°C)

80°

F (27

75°

F (24

°C)

°C)

218

(1.5)

23

(-5)

12

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(2) Operating current performance chart

13

77

(25)

11

10

9

70

°F (21

63

°F (17

4

8

3

77

(25)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(3) Indoor discharge air performance chart

Lo fan Hi fan Hi fan

Indoor air temp. 86

°F (30°C)

80

°F (27°C)

75

°F (24°C)

104

(40)

HH fan

7

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(3) Indoor discharge air performance chart

140(60)

131(55)

122(50)

63°

F (17

C)

Indoor air temp. 73

70°

F (21

63°

F (17

°C)

°C)

113(45)

104(40)

95(35)

86(30)

77

(25)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

33

Outdoor Unit CMH3172 Indoor Unit KMHS1872

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

174

(1.2)

Lo fan Hi fan

146

(1.0)

118

(0.8)

Indoor air temp. 86

°F (30°C)

80

°F (27°C)

75

°F (24°C)

90

(0.6)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(2) Operating current performance chart

9

Lo fan

8

7

°F (30

°C)

80°

F (27

Indoor air temp. 86

°C)

75°

F (24

°C)

6

104

(40)

Hi fan

5

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

506

(3.5)

F (23

C)

434

(3.0)

Indoor air temp. 73

70°

F (21

63°

F (21

F (17

°C)

°C)

362

(2.5)

290

(2.0)

218

(1.5)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(2) Operating current performance chart

14

13

70

°F (21

Indoor air temp. 73

63

°F (17

12

77

(25)

4

77

(25)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

(3) Indoor discharge air performance chart

Lo fan

Indoor air temp. 86

°F (30°C)

80

°F (27°C)

75

°F (24°C)

104

(40)

Hi fan

11

23

(-5)

(3) Indoor discharge air performance chart

140(60)

F (23

C)

131(55)

122(50)

113(45)

70°

F (21

°C)

63°

F (1

7

F (17

)

104(40)

95(35)

86(30)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

34

Outdoor Unit CMH3172 Indoor Unit KMHS2472

×

1

Cooling Characteristics

(RH : 46%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) Low pressure performance chart

Lo fan Hi fan

174

(1.2)

146

(1.0)

118

(0.8)

90

(0.6)

77

(25)

Indoor air temp. 86

°F (30°C)

80

°F (27°C)

75

°F (24°C)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

(2) Operating current performance chart

12

11

Lo fan

°F (30

°C)

Hi fan

10

Indoor air temp. 86

80°

F (27

°C)

75°

F (24

°C

)

9

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)

(230V, 60Hz)

(1) High pressure performance chart

506

(3.5)

434

(3.0) p. 73

°F (23

°C)

Indoo r a ir tem

70°

63°

F (21

F (17

°C)

°C)

362

(2.5)

290

(2.0)

218

(1.5)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

(2) Operating current performance chart

77

(25)

14

°F (23

°C)

13

63

Indoor air temp. 73

°F (17

12

8

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

11

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

(3) Indoor discharge air performance chart

Lo fan Hi fan

(3) Indoor discharge air performance chart

140(60)

131(55)

F (23

C)

68.0(20)

64.4(18)

60.8(16)

122(50)

113(45)

Indoor air temp. 73

70°

F (21

F (17

°C)

57.2(14)

53.6(12)

50.0(10)

Indoor air tem p. 86°F (30°

C)

80

°F (27°C)

75

°F (24°C)

104(40)

95(35)

86(30)

46.4( 8)

77

(25)

86

(30)

95

(35)

Outdoor air temperature

°F (°C)

104

(40)

77(25)

23

(-5)

32

(0)

41

(5)

50

(10)

59

(15)

Outdoor air temperature

°F (°C)

68

(20)

77

(25)

NOTE

• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

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

(In this case, be sure to stop all the indoor units where performance is not being checked.)

• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

35

5-2. Cooling Capacity

Outdoor Unit : CMH1972

Indoor Unit : KMHS0972

×

3

Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

RATING CAPACITY: 19,100 BTU/h

INDOOR

ENT. TEMP.

°F (°C)

W.B.

D.B.

65

(18.3)

TC 19,180

59

(15.0)

63

(17.2)

67

(19.4)

71

(21.7)

75

(23.9)

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

17,130

19,180

19,180

19,180

19,180

20,150

14,040

16,960

20,040

20,150

20,150

21,140

OUTDOOR

AMBIENT TEMP.

°F (°C)

75

(23.9)

18,500

AIR FLOW RATE:

85

(29.4)

17,770

95

(35.0)

883 CFM

105

(40.6)

17,210 16,350

115

(46.1)

15,440

16,960

18,500

18,500

18,500

18,500

19,450

13,700

16,610

19,450

19,450

19,450

20,420

16,610

17,770

17,770

17,770

17,770

18,700

16,270

17,210

17,210

15,930

16,350

16,350

17,210 16,350

17,210 16,350

18,140 17,250

13,360

16,270

18,700

18,700

18,700

13,190

16,100

18,140

18,140

18,140

12,840

15,760

17,250

17,250

17,250

19,640 # 19,100 18,180

15,440

15,440

15,440

15,440

15,440

16,290

12,330

15,410

16,290

16,290

16,290

17,180

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

10,610

13,700

16,790

19,700

21,140

22,130

7,190

10,100

13,360

16,270

19,190

23,020

10,440

13,360

16,440

19,530

20,420

21,400

7,010

9,930

13,010

16,100

19,010

22,270

10,100

13,010

16,270

19,190

19,640

20,600

6,670

9,590

12,840

15,760

18,670

21,450

9,930 9,590

12,840 12,500

15,930 15,760

19,010 18,180

19,100 18,180

20,080 19,130

6,500

9,410

6,160

9,240

12,670 12,330

15,590 15,240

18,500 18,330

20,980 20,000

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

6,840

9,930

12,840

15,930

6,670

9,760

12,670

15,590

6,330

9,410

12,500

15,410

6,160

9,240

5,980

9,070

12,330 11,990

15,240 14,900

5,640

8,730

11,640

14,730

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

9,240

12,160

15,240

17,180

17,180

18,100

5,810

8,900

11,990

14,900

17,990

18,930

NOTE

1. 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.

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.

36

Outdoor Unit : CMH2472

Indoor Unit : KMHS0972

×

3

Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

RATING CAPACITY: 23,200 BTU/h

INDOOR

ENT. TEMP.

°F (°C)

W.B.

D.B.

65

(18.3)

TC 23,420

59

(15.0)

63

(17.2)

67

(19.4)

71

(21.7)

75

(23.9)

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

19,190

22,100

23,420

23,420

23,420

24,490

15,760

18,840

21,930

24,490

24,490

25,560

OUTDOOR

AMBIENT TEMP.

°F (°C)

75

(23.9)

22,600

AIR FLOW RATE:

85

(29.4)

21,710

95

(35.0)

883 CFM

105

(40.6)

21,090 20,040

115

(46.1)

15,560

18,840

21,760

22,600

22,600

22,600

23,650

15,410

18,330

21,590

23,650

23,650

24,700

18,330

21,410

21,710

21,710

21,710

22,730

15,070

17,990

21,070

22,730

22,730

18,160 17,640

21,070 20,040

21,090 20,040

21,090 20,040

21,090 20,040

22,140

14,730

17,810

20,900

22,140

22,140

21,050

14,390

17,300

20,390

21,050

21,050

23,760 # 23,200 22,080

15,560

15,560

15,560

15,560

15,560

15,980

12,330

15,240

15,980

15,980

15,980

16,380

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

12,330

15,410

18,500

21,410

24,500

26,610

8,730

11,810

14,900

17,810

20,900

27,510

11,990

15,070

18,160

21,070

24,160

25,730

8,390

11,470

14,560

17,470

20,560

26,620

11,640

14,730

17,810

20,730

23,640

24,770

8,040

11,130

14,210

17,130

20,210

25,640

11,470 10,960

14,390 14,040

17,470 17,130

20,560 20,040

23,200 22,080

24,270 22,840

7,870 7,360

10,960 10,440

14,040 13,530

16,960 16,440

20,040 19,530

25,210 23,240

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

8,210

11,300

14,390

17,300

7,870

11,130

14,040

16,960

7,700

10,790

13,700

16,790

7,530 6,840

10,610 9,930

13,530 13,010

16,610 15,930

4,960

8,210

11,130

14,040

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

8,900

11,990

15,070

16,380

16,380

16,730

5,470

8,390

11,470

14,560

16,730

17,000

NOTE

1. 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.

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.

37

Outdoor Unit : CMH3172

Indoor Unit : KMHS0972

×

4

Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

RATING CAPACITY: 30,600 BTU/h

INDOOR

ENT. TEMP.

°F (°C)

W.B.

D.B.

TC

65

(18.3)

31,170

59

(15.0)

63

(17.2)

67

(19.4)

71

(21.7)

75

(23.9)

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

72 (22.2) SHC

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

TC

25,580

29,470

31,170

31,170

31,170

32,490

21,010

24,900

29,010

32,490

32,490

33,790

16,440

20,320

24,440

28,550

32,440

35,020

11,410

15,520

19,640

23,520

27,640

36,040

20,550

24,440

28,550

31,280

31,280

32,540

15,980

19,870

23,980

28,100

31,980

33,730

10,950

15,070

19,180

23,070

27,180

34,730

AIR FLOW RATE: 1,177 CFM

OUTDOOR

AMBIENT TEMP.

°F (°C)

75

(23.9)

30,000

85

(29.4)

28,730

95

(35.0)

105

(40.6)

28,010 22,960

115

(46.1)

16,690

24,900

29,010

30,000

30,000

30,000

31,280

24,440

28,320

28,730

28,730

28,730

29,960

23,980 21,700

28,010 22,960

28,010 22,960

28,010 22,960

28,010 22,960

29,310 23,400

16,690

16,690

16,690

16,690

16,690

16,970

19,870

23,980

28,100

29,960

29,960

15,290

19,410

23,520

27,410

31,170

32,320

10,490

14,610

18,720

22,610

26,720

33,270

19,640

23,520

27,640

29,310 23,400

29,310 23,400

31,170 # 30,600 23,770

15,070 12,550

19,180 16,670

23,300

27,180

30,600

31,860

10,490

14,380

18,500

32,940

17,120

21,240

23,400

20,780

23,770

23,770

24,020

7,750

11,640

15,980

22,610 19,870

26,500 23,750

24,130

14,610

16,970

16,970

16,970

16,970

17,200

10,270

14,150

17,200

17,200

17,200

17,350

5,690

9,580

13,690

17,350

17,350

17,390

76 (24.4) SHC

80 (26.7) SHC

84 (28.9) SHC

88 (31.1) SHC

10,720

14,840

18,950

22,840

10,270

14,610

18,500

22,380

9,810

14,150

18,040

21,920

9,810 7,070

13,920 11,180

17,810 15,290

21,920 19,180

5,240

9,350

13,240

17,350

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) D.B. / 67 °F (19.4 °C) W.B.

: Outdoor Ambient Temp. 95

°F (35 °C) D.B.

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.

38

5-3. Heating Capacity

Outdoor Unit : CMH1972

Indoor Unit : KMHS0972

×

3

Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

RATING CAPACITY:

OUTDOOR

ENT. TEMP.

°F (°C)

W.B.

24,800 BTU/h

0 (-17.8) TH

60

(15.6)

13,820

3 (-16.1)

8 (-13.3)

TH

TH

14,280

15,390

13 (-10.6)

18 (-7.8)

23 (-5.0)

28 (-2.2)

33 (0.6)

38 (3.3)

43 (6.1)

48 (8.9)

53 (11.7)

58 (14.4)

63 (17.2)

65 (18.3)

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

16,540

17,810

19,150

20,540

21,980

23,400

24,920

26,450

28,000

29,500

31,050

31,650

TH : Total Heating Capacity (BTU/h)

20,500

21,940

23,360

24,870

26,400

AIR FLOW RATE:

INDOOR

AMBIENT TEMP.

°F (°C)

65

(18.3)

70

(21.1)

13,790 13,750

14,250

15,360

14,220

15,320

16,510

17,780

19,110

16,470

17,740

19,070

20,450

21,880

23,300

# 24,800

26,330

27,940

29,440

30,980

31,580

27,870

29,360

30,890

31,490

20,380

21,810

23,220

24,720

26,240

75

(23.9)

13,710

14,170

15,280

16,420

17,680

19,010

27,770

29,250

30,780

31,380

847 CFM

20,310

21,730

23,130

24,620

26,130

80

(26.7)

13,660

14,120

15,220

16,360

17,620

18,930

27,660

29,130

30,660

31,250

NOTE

1. Rating conditions (#) : 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.

2.

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.

39

Outdoor Unit : CMH2472

Indoor Unit : KMHS0972

×

3

Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

RATING CAPACITY:

OUTDOOR

ENT. TEMP.

°F (°C)

W.B.

29,200 BTU/h

0 (-17.8) TH

60

(15.6)

16,550

3 (-16.1)

8 (-13.3)

13 (-10.6)

18 (-7.8)

23 (-5.0)

28 (-2.2)

33 (0.6)

38 (3.3)

43 (6.1)

48 (8.9)

53 (11.7)

58 (14.4)

63 (17.2)

65 (18.3)

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

24,330

25,970

27,580

29,280

30,990

32,690

17,100

18,390

19,730

21,200

22,740

34,320

35,970

36,600

TH : Total Heating Capacity (BTU/h)

24,310

25,950

27,560

29,250

30,950

32,650

AIR FLOW RATE:

INDOOR

AMBIENT TEMP.

°F (°C)

65

(18.3)

70

(21.1)

16,540 16,510

17,080

18,370

19,710

21,180

22,720

17,050

18,340

19,680

21,150

22,680

34,280

35,930

36,560

24,270

25,900

27,510

# 29,200

30,900

32,600

34,220

35,860

36,110

24,220

25,850

27,450

29,130

30,830

31,800

75

(23.9)

16,470

17,010

18,300

19,640

21,100

22,630

32,140

32,330

32,370

847 CFM

24,150

25,770

27,100

27,660

28,150

28,540

80

(26.7)

16,420

16,960

18,250

19,580

21,040

22,570

28,820

28,990

29,010

NOTE

1. Rating conditions (#) : 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.

2.

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.

40

Outdoor Unit : CMH3172

Indoor Unit : KMHS0972

×

4

Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

RATING CAPACITY:

OUTDOOR

ENT. TEMP.

°F (°C)

W.B.

32,000 BTU/h

0 (-17.8) TH

60

(15.6)

18,270

3 (-16.1)

8 (-13.3)

TH

TH

18,860

20,260

13 (-10.6)

18 (-7.8)

23 (-5.0)

28 (-2.2)

33 (0.6)

38 (3.3)

43 (6.1)

48 (8.9)

53 (11.7)

58 (14.4)

63 (17.2)

65 (18.3)

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

TH

21,720

23,310

24,970

26,690

28,460

30,190

32,020

33,850

35,680

37,420

39,190

39,870

TH : Total Heating Capacity (BTU/h)

26,690

28,450

30,190

32,020

33,850

AIR FLOW RATE:

INDOOR

AMBIENT TEMP.

°F (°C)

65

(18.3)

70

(21.1)

18,260 18,230

18,850

20,250

18,820

20,230

21,710

23,300

24,960

21,680

23,280

24,940

26,660

28,430

30,170

# 32,000

33,840

35,680

37,430

39,200

39,880

35,670

37,420

39,190

39,880

1,130 CFM

26,630

28,400

30,140

31,960

33,800

75

(23.9)

18,200

18,790

20,200

21,650

23,240

24,910

35,630

37,380

39,160

39,850

26,570

28,340

30,080

31,900

33,740

80

(26.7)

18,150

18,740

20,150

21,600

23,190

24,850

35,570

37,320

39,100

39,790

NOTE

1. Rating conditions (#) : 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.

2.

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.

41

6. ELECTRICAL DATA

6-1. Electric Wiring Diagrams

Outdoor Unit CMH1972

WARNING

To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.

L1 L2

POWER

SUPPLY

UNIT

A INDDOR

UNIT

B INDDOR

TO INDDOR UNIT

UNIT

C INDDOR

BLK

GRN/YEL

THERMISTOR

THERMISTOR

OUTDOOR

RED

RED

WHT

WHT

RED

RED

WHT

WHT

(2P)CONNECTOR

WHT

BLK

BLK

WHT

WHT

BLK

WHT

WHT

WHT

(2P)CONNECTOR

BLK

BLK

(2P)CONNECTOR

YEL

YEL

YEL

YEL

BN THERMISTOR

BW THERMISTOR

YEL

YEL

YEL

YEL

AN THERMISTOR

AW THERMISTOR

YEL

YEL

BLK

BLK

COIL

BLK

BLK

THERMISTOR

COMPRESSOR

GRN/YEL

COMP

RED

BLU

WHT

BLK

RED

BLU

WHT

WHT

BLU

RED (PNK)

CORE

FERRITE

RED

BLU

RED

BLK

WHT

BLK

WHT

RED

BLU

WHT

ORG

WHT

BRN

BLU

BLU

RED

BLK

WHT

WHT

BLK

ORG

WHT

BRN

BLU

RED

(7P)CONNECTOR

(3P)CONNECTOR

YEL

BLK

GRY

RED

ORG

YEL

BLK

GRY

RED

ORG

RED (PNK)

WHT

BLU

R/V

BLK

GRY

YEL

RED

ORG

YEL

YEL

YEL

YEL

SWITCH

HIGH PRESSURE

BLK

BLK

CN THERMISTOR

CW THERMISTOR

8FA2-5257-59100-1

42

Outdoor Unit CMH2472

BLK

GRN/YEL

THERMISTOR

THERMISTOR

OUTDOOR

RED

RED

RED

RED

WHT

WHT

WHT

(2P)CONNECTOR

WHT

WHT

WHT

WHT

WHT

WHT

WHT

BLK

BLK

(2P)CONNECTOR

BLK

BLK

BLK

(2P)CONNECTOR

YEL

YEL

YEL

YEL

BN THERMISTOR

BW THERMISTOR

YEL

YEL

YEL

YEL

AN THERMISTOR

AW THERMISTOR

BLK

BLK

YEL

YEL

COIL

BLK

BLK

THERMISTOR

COMPRESSOR

GRN/YEL

COMP

L1 L2

POWER

SUPPLY

WARNING

To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.

TO INDDOR UNIT

UNIT

A INDDOR

UNIT

B INDDOR

UNIT

C INDDOR

UNIT

D INDDOR

RED

BLU

WHT

BLU

RED (PNK)

CORE

FERRITE

RED

BLU

RED

WHT

BLK

BLU

RED

WHT

BLK

WHT

BRN

BLU

WHT

ORG

BLK

BLU

RED

WHT

BLK

WHT

WHT

BLK

BLU

RED

WHT

BRN

BLU

WHT

ORG

RED

(7P)CONNECTOR

(3P)CONNECTOR

YEL

BLK

GRY

RED

ORG

BLK

GRY

YEL

RED

ORG

RED (PNK)

WHT

BLU

R/V

YEL

YEL

YEL

YEL

YEL

YEL

YEL

YEL

YEL

BLK

RED

GRY

ORG

YEL

BLK

GRY

RED

ORG

CW THERMISTOR

CN THERMISTOR

DN THERMISTOR

SWITCH

HIGH PRESSURE

BLK

BLK

DW THERMISTOR

8FA2-5257-59300-1

43

Outdoor Unit CMH3172

BLK

CORE

FERRITE

THERMISTOR

THERMISTOR

OUTDOOR

RED

RED

RED

RED

WHT

WHT

WHT

(2P)CONNECTOR

WHT

WHT

WHT

WHT

WHT

WHT

WHT

BLK

BLK

(2P)CONNECTOR

BLK

BLK

BLK

(2P)CONNECTOR

YEL

YEL

YEL

YEL

BN THERMISTOR

BW THERMISTOR

YEL

YEL

YEL

YEL

AN THERMISTOR

AW THERMISTOR

BLK

BLK

YEL

YEL

COIL

BLK

BLK

THERMISTOR

COMPRESSOR

GRN/YEL

GRN/YEL

COMP

L1 L2

POWER

SUPPLY

WARNING

To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.

TO INDDOR UNIT

UNIT

A INDDOR

UNIT

B INDDOR

UNIT

C INDDOR

UNIT

D INDDOR

RED

BLU

WHT

BLU

RED (PNK)

CORE

FERRITE

RED

BLU

RED

WHT

BLK

BLU

RED

WHT

BLK

WHT

BRN

BLU

WHT

ORG

BLK

BLU

RED

WHT

BLK

WHT

WHT

BLK

BLU

RED

WHT

BRN

BLU

WHT

ORG

RED

(7P)CONNECTOR

(3P)CONNECTOR

YEL

BLK

GRY

RED

ORG

BLK

GRY

YEL

RED

ORG

RED (PNK)

WHT

BLU

R/V

YEL

YEL

YEL

YEL

YEL

YEL

YEL

YEL

YEL

BLK

RED

GRY

ORG

YEL

BLK

GRY

RED

ORG

CW THERMISTOR

CN THERMISTOR

DN THERMISTOR

SWITCH

HIGH PRESSURE

BLK

BLK

DW THERMISTOR

8FA2-5257-89400-1

44

7. FUNCTIONS

7-1. Explanation of Functions

NOTE

The numerical values such as temperature, frequency, time and current in parentheses are an example of CMH3172 and the values are different from the other models.

Control/conditions

INITIAL

Breaker is ON.

The ON/OFF operation button on the remote controller is pressed.

Unit operation Explanation

If automatic operation mode has been selected with the remote controller, operation begins in

HEAT, SENSOR DRY, or COOL mode depending on the room temperature and outdoor temperature at the time operation starts.

Power is supplied to the indoor and outdoor unit control circuits, however the unit remains stopped.

Positioning of the outdoor unit electric expansion valve is performed.

This applies in the case of automatic

HEAT/COOL operation.

HEAT

The ON/OFF operation button on the remote controller is pressed.

The room temperature has reached the desired temperature.

The thermostat turns

OFF.

The indoor and outdoor temperatures are high.

Depending on the operational mode, refer to the HEAT, SENSOR DRY, or COOL item.

Operation lamp illuminates.

Indoor fan is stopped to prevent cold air from being emitted.

Outdoor unit begins operating after forced-stop is canceled.

When the indoor coil temperature rises, the compressor starts, the outdoor fan starts, and the indoor fan changes from "LL" to the set fan speed.

The unit is forced to stop for 3 minutes after the power is turned ON, or 3 minutes after the compressor stops, in order to protect the compressor.

The frequency is increased at the rate of 1 Hz every 0.5 seconds.

Depending on the relationship between the remote controller temperature setting and the room temperature, the compressor may stop temporarily (in other words, the thermostat may turn OFF).

When the frequency reaches Hz,frequency increases are stopped for a period of seconds.

(Refor to Table 2 "Freguency control".)

This is in order to stabilize the return of oil to the compressor.

The frequency then increases.

The indoor temperature and the remote controller temperature setting are approximately equal.

The indoor fan is stopped.

If the indoor and outdoor temperatures are high, the current peak cut-off activates, stopping any increases in frequency.

Operating frequency is stabilized in order to maintain a comfortable environment.

In order to protect the compressor, the outdoor unit will not operate for 3 minutes after the thermostat turns OFF, even if the room temperature drops below the desired temperature.

The frequency is not increased, even if there is a difference between the room temperature and the desired temperature.

In some cases, the frequency may be decreased.

The outdoor unit stops. (It does not stop if the thermostat for another indoor unit is ON.)

Approximately 30 seconds after the thermostat turns OFF, the indoor fan is stopped.

The outdoor unit starts automatically after 3 minutes.

During these 3 minutes, a low-pressure pressure balance is achieved, allowing the compressor to start more easily.

The amount of heat pump exceeds the amount of heat radiation from the room.

Therefore, there is no need to further increase the compressor capacity, and the frequency is stabilized or lowered.

45

HEAT

Control/conditions

The thermostat turns ON.

Unit operation

The indoor unit is stopped.

When defrost operation begins, frost has formed on the outdoor unit

(when the ambient air temperature is low).

Non-stop defrost

Indoor fan : Stopped

Outdoor fan : Stopped

Compressor : 80 Hz

Solenoid valve (for hot gas bypass): ON

4-way valve : Remains ON

Operation lamp : Red and orange ON

alternately

Explanation

The unit operated before, and the temperature of the indoor heat exchanger is relatively warm.

Therefore,the fan speed may start at the set fan speed at the same time that the thermostat turns

ON.

Defrost operation begins based on outdoor heat exchanger temperature and outdoor air temperature conditions.

Non-stop defrost (Refer to Fig. 1)

1. After HEAT operation begins, the temperature of the outdoor heat exchanger is at or below the

L1 line for 35 minutes.

(If outdoor air temperature is less than 26.6

°F, the time is 48 minutes)

2. After HEAT operation begins, the temperature of the outdoor heat exchanger is at or below the

L2 line for 120 minutes.

The 4-way valve remains ON during defrost.

The outdoor fan stops and the solenoid valve turns ON, allowing the refrigerant to bypass the indoor unit.

The operating frequency during defrost is

80 Hz. (Frequency is lowered if the current peak cut-off function is activated.)

The maximum length of a single defrost operation is 12 minutes.

For the outdoor heat exchanger temperature conditions for ending defrost, refer to Table 1.

Defrost release Indoor fan turns ON.

After 10 seconds, the solenoid valve

(for hot gas bypass) turns OFF.

When the cold air feel has disappeared, the indoor fan starts and gradually increases speed until it reaches the set speed.

STOP

[Clean defrost]

Defrost is performed when the outdoor unit is stopped, and the temperature of the outdoor unit coil is at or below the L1 line.

(Refer to Fig. 1.)

All indicator lamps turn OFF. The indoor and outdoor units stop.

Operation is restarted within 4 hours (only when

AUTO mode is selected with the remote controller).

Starts operating in the same operating mode

(HEAT) and with the same temperature settings as before operation was stopped.

Operation starts after 4 hours or more have passed.

New operation begins based on the temperature conditions at the time the

ON/OFF button is pressed.

Within 4 hours after operation was stopped, it is assumed that there has been no significant change in the indoor and outdoor temperatures, and the previous conditions (HEAT) are stored.

46

L2

L1

Outdoor heat exchanger temperature (

°F)

(- 4) 0

(21.2)

(19.4)

(-11.2)

(-13.0)

Outdoor air temperature (

°F)

COOL

Fig. 1

Control/conditions

The ON/OFF operation button on the remote controller is pressed.

Temperature of releasing

Defrost operation time Less than 2 minutes 2 minutes or more

Heat exchanger temperature for releasing defrosting

No releasing 57.2

°F or higher (*1)

*1 The temperature for releasing of defrosting is (68

°F) or higher when the outdoor air temperature is less than 32

°F.

Table 1

Unit operation Explanation

The operation lamp illuminates.

The indoor fan operates at the set fan speed.

The outdoor unit stops.

The outdoor unit does not operate for 3 minutes even after the breaker is turned ON.

The outdoor unit starts.

(Compressor and the outdoor fan start.)

When the frequency reaches Hz, frequency increases are stopped for a period of seconds. (Refer to Table 2.)

The frequency then increases.

The frequency is increased at the rate of 0.5

Hz every 1 seconds.

This is in order to stabilize the return of oil to the compressor.

The room temperature has reached the desired temperature.

The thermostat turns

OFF.

The thermostat turns

ON again.

The indoor temperature and the desired temperature are approximately equal.

After the thermostat turns ON again, the outdoor unit will not operate for 3 minutes, even if the room temperature increases above the desired temperature.

Freeze prevention When the temperature of the indoor heat exchanger drops to approximately 35.6

°F or below, the compressor turns OFF, the outdoor fan turns OFF, and the indoor fan continues operating with no changes.

Stop

Approximately 3 minutes later, if the temperature of the indoor heat exchanger is adove 46.4

°F, the system returns to its original conditions.

All indicator lamps turn OFF. The indoor and outdoor units stop.

Operation is restarted within 4 hours (only when

AUTO mode is selected with the remote controller).

Starts operating in the same operating mode

(COOL) and with the same temperature settings as before operation was stopped.

Operation starts after 4 hours or more have passed.

New operating mode is determined based on the temperature conditions at the time the

ON/OFF operation button is pressed.

If the indoor and outdoor temperatures are high, the current peak cut-off activates, stopping any increases in frequency.

Operating frequency is stabilized in order to maintain a comfortable environment.

The outdoor unit stops. (It does not stop if the thermostart for another indoor unit is ON.)

After 3 minutes, the outdoor unit begins operating automatically.

During these 3 minutes, a pressure balance is achieved, allowing the compressor to start more easily.

In order to protect against freezing, the compressor stops temporarily, until the temperature of the indoor heat exchanger has risen.

Within 4 hours after operation was stopped, it is assumed that there has been no significant change in the indoor and outdoor temperatures, and the previous conditions (COOL) are stored.

47

Frequency control

(Hz)

(25) Hz

(35) Hz

(45) Hz

(55) Hz

(senconds)

Outdoor air temperature is below 32

°F.

Outdoor air temperature is 32

°F or higher.

(120) seconds (60) seconds

(60) seconds (30) seconds

(60) seconds

(180) seconds

(30) seconds

(90) seconds

Table 2

(1/f fluctuation fan)

Control/conditions

SENSOR

DRY

The ON/OFF operation button on the remote controller is pressed.

Unit operation Explanation

The operation lamp illuminates.

The indoor fan operates at the set fan speed.

The outdoor unit stops.

The outdoor unit does not operate for 3 minutes even after the breaker is turned ON.

The outdoor unit starts.

(Compressor and the outdoor fan start.)

When the frequency reaches Hz, frequency increases are stopped for a period of seconds. (Refer to Table 2.)

The frequency then increases.

The frequency is increased at the rate of 0.5

Hz every 1 seconds.

This is in order to stabilize the return of oil to the compressor.

The room temperature reaches the desired temperature, and there is no need for further cooling.

DRY operation starts

DRY A operation

The indoor fan changes between "Low" and "LL" (very low) over a 6-minute cycle.

This is 1/f fluctuation fan operation.

(Refer to Fig. 2.)

If the indoor and outdoor temperatures are high, the current peak cut-off activates, stopping any increases in frequency.

Operating frequency is stabilized in order to maintain a comfortable environment.

Operates to effectively dehumidify the air while not excessively reducing the indoor temperature.

The indoor unit operates at 1/f fluctuation fan operation, at a fan speed that does not cause a chilly feeling.

The room temperature is

59

°F or higher, and is slightly too cold.

DRY B operation

(1) The indoor fan changes between "Low" and "LL" (very low) over a 6-minute cycle.

This is 1/f fluctuation fan operation.

The compressor operates on a 3-minutes ON,

6-minutes OFF cycle, to prevent the room temperature from dropping too much.

(2) After appoximately 3 minutes, the compressor turns OFF, the outdoor fan turns OFF, and the indoor fan turns OFF.

The room temperature is below 59

°F.

(3) After approximately 6 minutes, the conditions return to (1).

Monitoring operation begins.

When monitoring operation begins, the compressor stops, and the indoor fan operates at

"LL" (very low) speed.

48

1/f fluctuation fan

250

200

(Step)

150

100

50

0

6-minute cycle

Fig. 2

49

7-2. Protective Functions

NOTE

The numerical values such as temperature, frequency, time and current in parentheses are an example of CMH3172 and the values are different from the other models.

7-2-1. Defrost Detection and Release

(1) Non-stop defrosting

Defrosting sequence

Heating operation

Frost detection

4-way valve ON

Defrost detection occurs in either of the following cases:

The temperature of the heat exchanger remains at or below the L1 line for 35 minutes after the start of HEAT operation.

The temperature of the heat exchanger remains at or below the L2 line for 120 minutes after the start of HEAT operation.

Outdoor heat exchanger temperature (

°F)

L2

L1

(- 4) 0

( 21.2)

( 19.4)

Outdoor air temperature (

°F)

(-11.2)

(-13.0)

Non-stop defrosting

Compressor

Outdoor fan

Solenoid valve

(for hot gas bypass)

Indoor fan

(80 Hz) operation (4-way valve ON)

OFF

ON

OFF

Releasing of defrosting

Temperature of the outdoor heat exchanger is at or above the temperature shown in the table below.

Defrost operation has continued for 12 minutes (max. length).

Temperature of releasing

Defrost operation time Less than 2 minutes 2 minutes or more

Heat exchanger temperature for releasing defrosting

No releasing 57.2

°F or higher (*1)

*1 The temperature for releasing of defrosting is (68

°F) or higher when the outdoor air temperature is less than 32

°F.

NOTE

Defrost does not occur during HIGH POWER operation.

If other stopped indoor units are started during defrost operation, they begin operating in defrost mode.

(2) Clean defrost

If all indoor units are stopped during HEAT operation, and frost is detected at the L1 line, and the conditions for defrost are met, then defrost operation occurs, and the unit stops after defrost is completed.

50

7-2-2. Current Control

The operating current may rise as a result of causes including increasing heating or cooling loads or decreases in power voltage. In these cases, the operating frequency is automatically reduced, or operation is stopped, in order to control the operating current so that it is (20 A) or less.

As a result:

• Power breakers and fuses will not be tripped.

• Operation can continue during this period with somewhat reduced heating or cooling capacity.

• Operation at normal capacity is restored when the cause of the current rise is eliminated.

Description of function

Example of operation for heating

(20A)

(17A)

(16.6A)

Target frequency

Power Point C

Point B

Point A

Frequency

Stops operation

Approx.3 minutes

• Operates at the target frequency at Point A and below.

Stops increases to the frequency between Points A and B.

Reduces the frequency by 1 Hz per 0.5 seconds when Point B is exceeded.

Stops operation, and restarts it appoximately 3 minutes later, if Point C is exceeded.

(May operate when sudden voltage fluctuations occur. Indicates trouble.)

(1) Automatic frequency control

The operating frequency is reduced automatically, or operation is stopped, in order to control the operating current so that it is at or below the values shown in the table below.

Point C (peak cut trip)

Point B (Hz reduction)

Point A (Hz increase prohibit)

HEAT

(20A)

COOL

(20.0)

(17.0)

(16.6)

(20.0)

(17.0)

(16.6)

NOTE

During defrost operation, the COOL current setting value is used.

(2) Current control

The operating frequency upper limits shown in the figure below are established for frequency reduction and increase-prohibit.

Example of operation during cooling Current(A)

Trip

Hz reduction

Hz increase prohibit

Hz reduction

Hz increase prohibit

(16)

(15.6)

0

(30)

Hz reduction

Hz increase prohibit

Frequency (Hz)

51

7-2-3. Low Start Current

Operation starts at (8 Hz), and the start current is less than the normal operating current. This prevents the flickering of fluorescent lights or television screens that occurs when ordinary A/C units start.

7-2-4. Compressor Temperature Control

To protect the compressor coil from overheating, the operating frequency is controlled based on the compressor discharge temperature.

(

°F)

Trip

(230)

5Hz every 30 sec. reduction

(223)

2Hz every 30 sec. reduction

(212)

No control

Increase prohibit range

(Hz reduction)

(194)

* Within the increase-prohibit range, the range changes to the Hz reduction range (2 Hz every 30 seconds) if the compressor temperature rises by 4

°F.

7-2-5. Control at HEAT Start-up

If HEAT operation is started when the outdoor air temperature is 59

°F or below, the unit operates at the HEAT start-up frequency (70 Hz or above).

Reset conditions

(1) The compressor frequency exceeds the start-up frequency of (70 Hz).

(2) The compressor thermostat is OFF.

(3) Frequency reduction for indoor high-load control has occurred.

(4) The outdoor air temperature is above 59

°F.

(5) The main-unit switch on one or more indoor units is set to TEST run.

52

8. TROUBLESHOOTING

8-1. Precautions before Performing Inspection or Repair

Both the indoor unit and outdoor unit include electronic control circuits.

Be sure to pay attention to the following before inspecting or repairing the outdoorside electronic circuits.

High-capacity electrolytic capacitors are used inside the outdoor unit controller (inverter). They retain an electrical charge (charging voltage DC 311 V) even after the power is turned OFF, and some time is required for the charge to dissipate.

Be careful not to touch any electrified parts before the control circuit board Power Lamp (red) turns OFF.

If the outdoor control circuit board is normal, approximately 180 seconds will be required for the charge to dissipate. However, allow at least 30 minutes for the charge to dissipate if it is thought there might be trouble with the outdoor control circuit board.

For example, if the outdoor control circuit board fuse has blown, approximately 30 minutes will be required to discharge the high-capacity electrolytic capacitors.

53

8-2. Trouble Diagnosis by Error Monitor Lamps

WARNING

To prevent electric shock, do not inspect or repair until the Power Lamp on the P.C.Board is turned off.

8-2-1. Location of the Error Monitor Lamps

Remove the top plate of outdoor unit and the cover of Electrical Component Box.

The Power Lamp and Error Monitor Lamps are located on the P.C.Board of Electrical Component Box. (Fig.1)

Heat Exchanger Rear side P.C.Board of Electrical Component Box.

Error Monitor Lamps

Power Lamp

ERR0

ERR1

ERR2

ERR3

Front side

Fig.1 View from top

8-2-2. Display of the Error Monitor Lamps

If a protective device has activated or there is a sensor failure in the outdoor unit, the 4 error monitor lamps on the outdoor control circuit board will indicate the nature of the trouble.

: ON : OFF

Error Monitor Lamp

ERR0 ERR1 ERR2 ERR3

Error Contents

Sensor for compressor discharge temp

Sensor for heat excharge temp

Sensor for branch pipe A (Narrow tube)

Sensor for branch pipe B (Narrow tube)

Sensor for branch pipe C (Narrow tube)

Sensor for branch pipe D (Narrow tube)

Outdoor temp sensor

Sensor for branch pipe A (Wide tube)

Sensor for branch pipe B (Wide tube)

Sensor for branch pipe C (Wide tube)

Sensor for branch pipe D (Wide tube)

HIC circuit trouble (current, temp)

Actuation of comp over load relay

Actuation of freeze protection function

Outdoor unit error. Detail of error message indicate on indoor LED

54

8-3. Checking the Outdoor System

8-3-1. Checking the outdoor unit

No.

1

2

Work procedure

• Apply 220 V AC between terminals L1 and L2 on the outdoor unit terminal plate.

• Short-circuit the T-RUN terminal to the COM terminal of TEST/T-RUN terminals.

Check items (unit operation)

• The LED (red) on the control board must illuminate.

• The compressor, fan motor, 4-way valve, and solenoid valve (for the hot gas bypass) must turn ON.

(They turn ON about (70) seconds later after the power is turned ON.)

NOTE

If the above check items are okay, but the outdoor unit does not operate, there may be a faulty connection between the indoor unit and the outdoor unit.

8-3-2. Checking the defrost operation

Using forced defrost operation to check this function.

No.

1

Work procedure

• Connect a dummy resistor of 39 k ohm to the outdoor coil temperature sensor connector.

Check items (unit operation)

Non-stop defrost

Indoor fan

CM

30 sec.

Setting

LL Stop

(80 Hz)

ON

Solenoid valve

(for hot gas bypass)

OFF

5 sec.

ON

Outdoor fan

ON OFF

Defrost start

Setting

10 sec.

OFF

ON

Release

• The maximum length of defrost operation is 12 minutes.

Defrost can also be released based on the below conditions for the outdoor heat exchanger sensor.

Less than 2 minutes Not released

2 minutes or more 57.2

°F or higher (*1)

*1 However, the condition is (68

°F) or higher when

the outdoor air temperature is below 32

°F.

55

8-4. Trouble Diagnosis of Each Part

8-4-1. Problems of Each Part and Inspection Points

For details about the inspection points, refer to the Inspection Points for Each Part.

Indoor unit Outdoor unit

Problems

Others

No. of

Inspection

Points for

Each part

Inspection points

Self-Diagnostics check

Indoor controller

(control unit)

Indoor fan motor

Room temperature sensor

Heat exchanger temperature sensor

Inter-unit cable

Switch circuit board

Outdoor control circuit board

Diode module

HIC

Electrolytic capacitor

Fuse

Compressor

Compressor protective sensor

Outdoor fan motor

4-way valve

Coil thermistor

Electric expansion valve

Branch tubing temperature sensor

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

56

Indoor unit Outdoor unit Others

Problems

No. of

Inspection

Points for

Each part

Inspection points

Breaker

Refrigerant gas pressure

(9)

(10)

8-4-2. Inspection Points for Each Part

(1) Outdoor control circuit board

Refer to "8-3-1. Checking the outdoor unit".

NOTE

Do not remove or insert the outdoor control circuit board connector when power is being supplied to it.

(The controller will be damaged.)

(2) Fuse

Check it visually or the continuity with a tester.

(3) Compressor

Check for an open circuit in the compressor coil winding.

(4) Compressor protective sensor (compressor discharge temperature thermistor)

Check that the senseor is securely contained in the thermostart holder.

(5) 4-way valve

Short-circuit the T-RUN terminal to the COM terminal of TEST/T-RUN terminals. Perfrom a test run of the unit alone, and check whether the 4-way valve inside the outdoor unit produces a click sound.

(6) Coil thermistor

Check that the sensor is securely contained in the thermostat holder.

57

(7) Electric expansion valve

When replacing the electric expansion valve and coil, be sure to attach the connectors in the correct positions.

Labels are applied to the valve body and coil, corresponding to the connector colors, to identify them.

Controller check

No voltage on circuit board Voltage varies

Use a multi-meter to measure the voltage (12 V).

When the power is turned ON, the needle will move in the following seguence in approximately 10 to 20 seconds for each point.

Model No.

Sequence

CMH1972

CMH2472

CMH3172

MV0

MV0

MV1

MV1

MV2

MV2 MV3

Check the illumination of the red Power Lamp.

Check the coil resistance.

0 ohm Approx. 46 +/– 4 ohm

Replace the controller.

NOTE

Cool the main unit with a damp cloth or other means while welding.

When applying vacuum, use the special service magnet and rotate at least 5 revolutions counterclockwise to fully open the electric expansion valve.

Replace the coil.

Open and close the electric expansion valve by hand to check it.

No temperature change

Replace the electric expansion valve.

*1

Temperature changes

This part is normal.

Check elsewhere.

Check the resistance between the gray lead wire and the other wires.

Resistance is OK if it is 46 + / – 4ohm at 68

°F

Use the special service magnet and rotate 5 revolutions clockwise to fully close the valve.

Then start the unit and measure the temperature at the inlet and outlet tubes of the electric expansion valve.

If the temperature difference is large, the valve is closed.

Then rotate 5 revolutions counterclockwise to open the valve.

Operation is normal if the temperature difference between the 2 tubes drops.

*1 If you have manually checked the electric expansion valve, be sure to reapply the outdoor power after you have

replaced the wiring. (The position of the elecric expansion valve will changed.)

58

(8) Branch tubing temperature sensor

Check that the sensor is securely contained in the thermostat holder.

(9) Breaker

Check whether or not the breaker has been tripped.

Check that the breakers and fuses used are of the specified capacity.

Check that the breaker and its line are exclusive for A/C use.

(10) Refrigerant gas pressure

Start a COOL test run, and messure the temperatures of the A/C intake air and discharge air. Compare the values with the performance charts.

If the values are higher than the performance charts:

Check for refrigerant shortage or blockage of the refrigerant circuit.

< Assessment of refrigerant shortage >

1. The pressure in the low-pressure section is 5 MPa or more below the value in the performance charts.

2. There is little condensation on the indoor heart exchanger, which overall appears dry.

< Distinguishing between refrigerant shortage and refrigerant circuit blockage >

If the pressure in the low-pressure section does not change when the circuit is charged 2 to 3 times with

refrigerant gas (0.44 lbs each time), or if the change is small, then the problem may not be

refrigerant shortage.

The problem may be a blockage of the refrigerant circuit.

1. Check that there is no internal leakage inside the 4-way valve:

At the low-pressure side tubing, check that there is no temperature difference between the intake and

discharge of the 4-way valve.

2. Check that the electric expansion valve is not blocked. Check as described on the preceding page.

59

8-5. Trouble Diagnosis of Fan Motor

This outdoor DC fan motor contains an internal control PCB. Therefore, it is not possible to measure the coil resistance, and the following procedure should be used to check the motor.

Perform the trouble diagnosis by Test Run mode described on Installation Instructions of indoor unit.

Important: (A) Turn OFF the power before connecting or disconnecting the motor connectors.

(B) When performing voltage measurement at the outdoor controller connector for (3) in the table below, the DC motor will trip and voltage output will stop approximately 10 seconds after operation is started. For this reason, to measure the voltage again, first turn OFF the outdoor unit power, then, measure the voltage in Test Run mode.

[Trouble symptom 1]

The fan does not stop when the outdoor unit stops. Outdoor unit controller trouble

[Trouble symptom 2]

The fan motor does not rotate when the outdoor unit is operating.

(Diagnostic procedure)

* Disconnect the motor connectors and measure the voltage at the DC motor connectors on the outdoor unit controller (3 locations).

Measurement location

(1) Vm-Gnd: Between pin 1 and pin 4

(2) Vcc-Gnd: Between pin 5 and pin 4

(3) Vsp-Gnd: Between pin 7 and pin 4

DC 230V or more

DC 14V or more

After fluctuating 4 times between DC 1.7 to 6.1V

(1 sec. ON) and DC 0 V (1 sec. OFF), the DC motor trips.

Normal value

(Diagnostic results)

All of the above measured values are normal. Fan motor trouble (Replace the motor.)

Any one of the above measured values is not normal. Outdoor unit controller trouble

(Replace the controller .)

(Reference)

DC motor connector pin arrangement

Pin 1: Vm (red)

Pin 2: Not used

Pin 3: Not used

Pin 4: Gnd (blue)

Pin 5: Vcc (brown)

Pin 6: PG (white)

Pin 7: Vsp (orange)

[Trouble symptom 3]

Motor rotates for some time (several seconds), but then quickly stops, when the outdoor unit operates.

(There is trouble in the system that provides feedback of motor rotation speed from the motor to the outdoor unit controller.)

[Trouble symptom 4]

Fan motor rotation speed does not change during outdoor unit operation.

[Trouble symptom 5]

Fan motor rotation speed varies excessively during outdoor unit operation.

(Remedy for symptom 3 to 5)

It is not possible to identify whether the trouble is outdoor unit controller trouble or motor trouble.

Therefore, first replace the outdoor unit controller, then (if necessary) replace the DC motor.

60

9. REFRIGERANT R410A:

SPECIAL PRECAUTIONS WHEN SERVICING UNIT

9-1. Characteristics of New Refrigerant R410A

9-1-1. What is New Refrigerant R410A?

R410A is a new refrigerant that contains two types of pseudo-non-azeotropic refrigerant mixture. Its refrigeration capacity and energy efficiency are about the same level as the conventional refrigerant, R22.

9-1-2. Components (mixing proportions)

HFC32 (50%) / HFC125 (50%)

9-1-3. Characteristics

Less toxic, more chemically stable refrigerant

The composition of refrigerant R410A changes whether it is in a gaseous phase or liquid phase. Thus, when there is a refrigerant leak the basic performance of the air conditioner may be degraded because of a change in composition of the remaining refrigerant.

Therefore, do not add new refrigerant. Instead, recover the remaining refrigerant with the refrigerant recovery unit. Then, after evacuation, totally recharge the specified amount of refrigerant with the new refrigerant at its normal mixed composition state (in liquid phase).

When refrigerant R410A is used, the composition will differ depending on whether it is in gaseous or liquid phase, and the basic performance of the air conditioner will be degraded if it is charged while the refrigerant is in gaseous state.

Thus, always charge the refrigerant while it is in liquid phase.

CAUTION

Ether-type oil is used for compressor oil for R410A-type units, which is different from the mineral oil used for R22. Thus more attention to moisture prevention and faster replacement work compared with conventional models are required.

61

9-2. Checklist before Servicing

Use a clutch-type flare tool for R410A or the conventional flare tool. Note that sizes of the resultant flares differ between these two tools. Where a conventional flare tool is used, make sure to observe A Specification (amount of extrusion) by using the flare spacer.

Flare tool for R410A

Specification A

Conventional flare tool (for R22)

Diameter of tube D

Dia.1/4" (6.35 mm)

Dia.3/8" (9.52 mm)

Dia.1/2" (12.7 mm)

Dia.5/8" (15.88 mm)

0 to 0.0196"

(0 to 0.5 mm)

0.0472"

(1.2 mm)

Size of flare

Spacer

D D

A A

Flare tool for R410A Conventional flare tool (R22)

Tubing precautions

Refrigerant R410A is more easily affected by dust or moisture compared with R22, thus be sure to temporarily cover the ends of the tubing with caps or tape prior to installation.

Never use 0.0276" (0.7 mm)-thick copper tubing or tubing which is less than 0.0315" (0.8 mm) in thickness, since air conditioners with R410A are subject to higher pressure than those using R22 and R407C.

No addition of compressor oil for R410A

No additional charge of compressor oil is permitted.

No use of refrigerant other than R410A

Never use a refrigerant other than R410A.

If refrigerant R410A is exposed to fire

Through welding, etc., toxic gas may be released when R410A refrigerant is exposed to fire. Therefore, be sure to provide ample ventilation during installation work.

Caution in case of R410A leak

Check for possible leak points with the special leak detector for R410A. If a leak occurs inside the room, immediately provide thorough ventilation.

62

9-3. Tools Specifically for R410A

For servicing, use the following tools for R410A

Tool Distinction

Tools specifically for R410A

Tools which can be commonly used for R22,

R407C, and R410A

Tool Name

Gauge manifold

Charging hose

Gas leak detector

Refrigerant cylinder

Charging cylinder

Refrigerant recovery unit

Vacuum pump with anti-reverse flow (*1)

(Solenoid valve-installed type, which prevents oil from flowing back into the unit when the power is off, is recommended.)

Vacuum pump (*2)...can be used if the following adapter is attached.

Vacuum pump adapter (reverse-flow prevention adapter) (*3).

(Solenoid valve-installed adapter attached to a conventional vacuum pump.)

Electronic scale for charging refrigerant

Flare tool

Bender

Torque wrench

Cutter, reamer

Welding tool, nitrogen gas cylinder

CAUTION

The above tools specifically for R410A must not be used for R22 and R407C.

Doing so will cause malfunction of the unit.

For the above vacuum pump (*1, *2) and vacuum pump adapter (*3), those for

R22-type units can be used for R410A-type. However, they must be used exclusively for R410A and never alternately with R22 and R407C.

To prevent other refrigerants (R22, R407C) from being mistakenly charged to this unit, shape and external diameter of the service port screw has been altered.

<External diameter of service port> R410A : 5/16"

R22, R407C : 1/4"

9-4. Tubing Installation Procedures

When the tubes are connected,

always apply HAB oil on the flare portions to improve the sealing of tubing.

The following is the HAB oil generally used:

Esso: ZERICE S32

NOTE

For details on tubing installation procedures, refer to the installation manuals attached to the indoor unit and outdoor unit.

63

9-5. In Case of Compressor Malfunction

CAUTION

Should the compressor malfunction, be sure to make the switch to a replacement compressor as quickly as possible.

Use only the tools indicated exclusively for R410A. See "9-3. Tools Specifically for R410A."

9-5-1. Procedure for Replacing Compressor

(1) Recovering refrigerant

Any remaining refrigerant inside the unit should not be released to the atmosphere, but recovered using the refrigerant recovery unit for R410A.

Do not reuse the recovered refrigerant, since it will contain impurities.

(2) Replacing Compressor

Soon after removing seals of both discharge and suction tubes of the new compressor, replace it quickly.

(3) Checking for sealing

Use nitrogen gas for the pressurized gas, and never use a refrigerant other than R410A. Also do not use oxygen or any flammable gas.

(4) Evacuation

Use a solenoid valve-installed vacuum pump so that

even if power is cut off in the middle of evacuation of air due to a power interruption, the valve will prevent the pump oil from flowing back.

The equipment may be damaged if moisture remains in the tubing, thus carry out the evacuation thoroughly.

When using a vacuum pump with exhaust air volume more than 0.883 cu.ft./min. and ultimate vacuum pressure rate of 50 micron Hg.

Standard time for evacuation

Length of tubing

Evacuation time

Less than 33 ft. (10 m)

More than 10 minutes

More than 33 ft. (10 m)

More than 15 minutes

(1) Recover refrigerant

OK

(2) Replace compressor

(3) Check for sealing

(4) Evacuation

(5) Recharge

OK

OK

OK

64

(5) Recharging

Be sure to charge the specified amount of

refrigerant in liquid state using the service port

of the wide tube service valve. The proper amount is listed on the unit's nameplate.

When the entire amount cannot be charged all at once, charge gradually while operating the unit in

Cooling Operation.

CAUTION

Never charge a large amount of liquid refrigerant at once to the unit. This may cause damage to the compressor.

When charging with a refrigerant cylinder, use an electronic scale for charging refrigerant. In this case, if the volume of refrigerant in the cylinder becomes less than 20% of the fully-charged amount, the composition of the refrigerant starts to change. Thus,

do not use the refrigerant if the amount in the charging cylinder is less than 20%.

Also, charge the minimum necessary amount to the charging cylinder before using it to charge the air conditioning unit.

Example:

In case of charging refrigerant to a unit requiring

1.68 lb. (0.76 Kg) using a capacity of a 22 lb. (10

Kg) cylinder, the minimum necessary amount for the cylinder is:

1.68 + 22 0.20 = 6.08 lb.

(0.76 + 10 0.20 = 2.76 Kg)

For the remaining refrigerant, refer to the instructions of the refrigerant manufacturer.

If using a charging cylinder, transfer the specified amount of liquid refrigerant from the refrigerant cylinder to the charging cylinder.

Prepare an evacuated charging cylinder beforehand.

CAUTION

To prevent the composition of R410A from changing, never bleed the refrigerant gas into the atmosphere while transferring the refrigerant. (Fig. 3)

Do not use the refrigerant if the amount in the charging cylinder is less than 20%.

65

Configuration and characteristics of cylinders

Valve

Charging cylinder

Open

Liquid

Single valve

Charge liquid refrigerant with cylinder in up-side-down position.

Fig. 1

Liquid

Valve

Single valve (with siphon tube)

Charge with cylinder in normal position.

Fig. 2

Fig. 3

NO!

Liquid

Refrigerant cylinder

9-6. In Case Refrigerant is Leaking

CAUTION

Never attempt to charge additional refrigerant when refrigerant has been leaking from the unit. Follow the procedure described below to locate points of leaks and carry out repairs, then recharge the refrigerant.

(1) Detecting Leaks

Use the detector for R410A to locate refrigerant leak points.

(2) Recovering refrigerant

Never release the gas to the atmosphere; recover residual refrigerant using the refrigerant recovery unit for

R410A, instead.

Do not reuse the recovered refrigerant because its composition will have been altered.

(3) Welding leaking points

Confirm again that no residual refrigerant exists in the unit before starting welding.

Weld securely using flux and wax for R410A.

Prevent oxide film from forming inside the tubes utilizing substitution with nitrogen (N2) in the refrigerant circuit of the unit. Leave ends of tubes open during welding.

(4) Checking for sealing

Use nitrogen gas for the pressurized gas, and never use a refrigerant other than R410A. Also do not use oxygen or any flammable gas.

(5) Evacuation

Use a solenoid valve-installed vacuum pump so that

even if power is cut off in the middle of evacuation of air due to a power interruption, the valve will prevent the pump oil from flowing back.

The equipment may be damaged if moisture remains in the tubing, thus carry out the evacuation thoroughly.

When using a vacuum pump with exhaust air volume more than 0.883 cu.ft./min. and ultimate vacuum pressure rate of 50 micron Hg.

Standard time for evacuation

Length of tubing

Evacuation time

Less than 33 ft. (10 m)

More than 10 minutes

More than 33 ft. (10 m)

More than 15 minutes

(1) Detect leaks

OK

(2) Recover refrigerant

OK

(3) Weld leaking points

(4) Check for sealing

(5) Evacuation

(6) Recharge

OK

OK

OK

(6) Recharging

Recharge unit in the same manner explained on the previous page "(5) Recharging."

66

9-7. Charging Additional Refrigerant

9-7-1. When Tubes are Extended

Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came with the indoor unit.

Charge additional refrigerant in liquid state only.

CAUTION

Never charge additional refrigerant if refrigerant is leaking from the unit. Follow instructions given in "9-6. In Case Refrigerant is Leaking" and completely carry out repairs. Only then should you recharge the refrigerant.

9-8. Retro-Fitting Existing Systems

9-8-1. Use of Existing Units

Never use new refrigerant R410A for existing units which use R22. This will cause the air conditioner to

operate improperly and may result in a hazardous condition.

9-8-2. Use of Existing Tubing

If replacing an older unit that used refrigerant R22 with a R410A unit,

do not use its existing tubing. Instead,

completely new tubing must be used.

67

APPENDIX A INSTALLATION INSTRUCTIONS

CMH1972

CMH2472

CMH3172

(II-852-6-4189-993-00-2)

A-1

07-155 CMH1972-3172 6/6/07 9:34 AM Page a

For Outdoor Unit

INSTALLATION INSTRUCTIONS

– Inverter Multi Split System Air Conditioner –

COOL / DRY/ HEAT Model

This air conditioner uses the new refrigerant R410A.

NOTE

Refrigerant service valve size = 5/16"

Contents

Page

IMPORTANT!

Please Read Before Starting .................................. 2

Model Combinations

1.

GENERAL .......................................................... 3

1-1. Tools Required for Installation (not supplied)

1-2. Accessories Supplied with Unit

1-3. Optional Copper Tubing Kit

1-4. Type of Copper Tube and Insulation Material

1-5. Additional Materials Required for Installation

Combine indoor and outdoor units only as listed below.

Indoor Unit

KMHS0772

KMHS0972

KMHS1272

KMHS1872

KMHS2472

Outdoor Unit

CMH1972

CMH2472

CMH3172

2.

INSTALLATION SITE SELECTION ................... 4

2-1. Indoor Unit

2-2. Connecting Indoor Units

2-3. Outdoor Unit

2-4. Outer Dimensions of Outdoor Unit

2-5. Diagram of Outdoor Unit Installation

Combine indoor and outdoor units only as listed in the combination tables for 3-room or 4-room outdoor unit as shown in its respective manual.

Power Source:

60 Hz, single-phase, 230 / 208 VAC

3.

INSTALLATION PROCESS .............................. 13

3-1. Embedding the Tubing and Wiring

3-2. Use of the Flaring Method

3-3. Flaring Procedure with a Flare Tool

3-4. Caution before Connecting Tubes Tightly

3-5. Tubing Connections

3-6. Insulation of Refrigerant Tubing

3-7. Taping the Tubes

3-8. Finishing the Installation

Be sure to read the yellow instruction sheet attached to the outdoor unit for models using the new refrigerant R410A.

Combination example

Indoor unit B

Indoor unit A

4.

AIR PURGING................................................... 16

I Air Purging with a Vacuum Pump (for Test Run)

I Pump Down

Indoor unit C

5.

WIRING INSTRUCTIONS ................................ 19

5-1. General Precautions on Wiring

5-2. Recommended Wire Length and Diameter

5-3. Wiring System Diagram

5-4. How to Connect Wiring to the Terminal

5-5. Wiring Instructions for the Outdoor Unit

Outdoor unit

6.

TEST RUN ......................................................... 23

Indoor unit D

7.

8.

CONNECTING A HOME AUTOMATION

DEVICE ............................................................. 24

INSTALLATION CHECK SHEET ...................... 24

85264189

993

002 © SANYO 2007

NOTE

The illustrations are based on the typical appearance of a standard model. Consequently, the shape may differ from that of the air conditioner that you are installing.

SANYO Commercial Solutions

A Division of SANYO North America Corporation

Cornerstone Business Park,

1062 Thorndale Avenue,

Bensenville, IL 60106, U.S.A.

In Canada

SANYO Canada Inc.

1-300 Applewood Crescent, Concord

Ontario, L4K 5C7, Canada

07-155 CMH1972-3172 6/6/07 9:34 AM Page 2

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:

G

G

G

G

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.

WARNING

This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death.

CAUTION

This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage.

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

WARNING

When Wiring

ELECTRICAL SHOCK CAN CAUSE SEVERE

PERSONAL INJURY OR DEATH. ONLY A

QUALIFIED, EXPERIENCED ELECTRICIAN

SHOULD ATTEMPT TO WIRE THIS SYSTEM.

• 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

• 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.

• Do not install only a single indoor unit.

2

07-155 CMH1972-3172 6/6/07 9:34 AM Page 3

1. General

This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning. If the electric wiring diagram does not appear in this manual, please check for the diagram on the indoor unit.

1-1. Tools Required for Installation (not supplied)

1. Standard screwdriver

2. Phillips head screwdriver

3. Knife or wire stripper

4. Tape measure

1-2. Accessories Supplied with Unit

Table 1

Parts Figure Q’ty

Hex wrench

Parts

1 Cushion rubber

Labels for inter-unit cable and tube

A B C D

4 each

Reducer

(3/8" 1/2")

5. Carpenter’s level

6. Sabre saw or key hole saw

7. Hacksaw

8. Core bits

9. Hammer

10. Drill

11. Tube cutter

12. Tube flaring tool

13. Torque wrench

14. Adjustable wrench

15. Reamer (for deburring)

16. Vacuum pump (For R410A)

17. Manifold valve

Figure Q’ty

4

Parts

Reducer

(1/2" 3/8")

CMH1972

1

Figure Q’ty

CMH2472

1

2

CMH3172

Packed in the outdoor unit.

1-3. Optional Copper Tubing Kit

Copper tubing for connecting the outdoor unit to the indoor unit is available in kits which contain the narrow and wide tubing, fittings and insulation. Consult your nearest sales outlet or A/C workshop.

1-4. Type of Copper Tube and Insulation Material

If you wish to purchase these materials separately from a local source, you will need:

1.

Deoxidized annealed copper tube for refrigerant tubing as detailed in Table 2.

Cut each tube to the appropriate lengths 1' to 1'4"

(30 cm to 40 cm) to dampen vibration between units.

2.

3.

Foamed polyethylene insulation for the specified copper tubes as required to precise length of tubing.

Wall thickness of the insulation should be not less than 5/16" (8 mm).

Use insulated copper wire for field wiring. Wire size varies with the total length of wiring.

Refer to 5. Wiring Instructions for details.

CAUTION

Table 2

Model

KMHS0772

KMHS0972

KMHS1272

KMHS1872

KMHS2472

Narrow Tube Wide Tube

Outer Dia.

Thickness Outer Dia.

Thickness

1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)

1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)

1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)

1/4" (6.35 mm) 0.0314" (0.8 mm) 1/2" (12.70 mm) 0.0314" (0.8 mm)

1/4" (6.35 mm) 0.0314" (0.8 mm) 5/8" (15.88 mm) 0.0393" (1.0 mm)

3

Check local electrical codes and regulations before obtaining wire. Also, check any specified instructions or limitations.

07-155 CMH1972-3172 6/6/07 9:34 AM Page 4

1-5. Additional Materials Required for Installation

1.

Refrigeration (armored) tape

2.

Insulated staples or clamps for connecting wire

(See local codes)

3.

Putty

4.

Refrigeration lubricant

5.

Clamps or saddles to secure refrigerant tubing

Indoor unit

2. Installation Site Selection

2-1. Indoor Unit

WARNING

To prevent abnormal heat generation and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surrounding the air conditioner in a way that may block air flow.

AVOID:

G direct sunlight.

G nearby heat sources that may affect performance of the unit.

G areas where leakage of flammable gas may be expected.

G placing or allowing any obstructions near the A/C inlet or outlet.

G installing in rooms that contain instant-on (rapid-start) fluorescent lamps. (These may prevent the A/C from receiving signals.)

G places where large amounts of oil mist exist.

G installing in locations where there are devices that generate high-frequency emissions.

DO:

G select an appropriate position from which every corner of the room can be uniformly cooled. (High on a wall is best.)

G select a location that will hold the weight of the unit.

G select a location where tubing and drain hose have the shortest run to the outside. (Fig. 1)

G allow room for operation and maintenance as well as unrestricted air flow around the unit. (Fig. 2)

G install the unit within the maximum elevation difference

(H1, H2, H3, H4) above or below the outdoor unit and within a total tubing length (L1+L2+L3, L1+L2+L3+L4) from the outdoor unit as detailed in Table 3 and Fig. 3a.

2" (5 cm) min.

Outside drainage

Fig. 1

6" (15 cm) min.

2" (5 cm) min.

Front View

Fig. 2

H4

INDOOR

UNIT (1)

Elevation difference (H1)

Tubing length (L1)

L2

INDOOR

UNIT (2)

OUTDOOR

UNIT

INDOOR

UNIT (4)

L4

L3

INDOOR

UNIT (3)

Fig. 3a

Drain hose

CAUTION

Indoor unit

For stable operation of the air conditioner, do not install wall-mounted type indoor units less than 5'

(1.5 m) from floor level.

Minimum height from floor level

5' (1.5 m)

H2

H3

Wall

Floor level

Fig. 3b

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07-155 CMH1972-3172 6/6/07 9:34 AM Page 5

G Install the indoor unit more than 3.3' (1 m) away from any antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom.

Electrical noise from any of these sources may affect operation.

G install in a sturdy manner to avoid increased operating noise.

Table 3

Model

CMH1972

CMH2472

Max.

Allowable

Tubing Length per unit

(ft.)

82

82

Max. Allowable Total

Tubing Length at shipment

(L1+L2+L3) or

(L1+L2+L3+L4)

(ft.)

150 (L1+L2+L3)

150 (L1+L2+L3+L4)

Limit of

Total Tubing Length

(L1+L2+L3) or

(L1+L2+L3+L4)

(ft.)

150 (L1+L2+L3)

200 (L1+L2+L3+L4)

Limit of Elevation

(H1, H2, H3, H4)

(ft.)

50

50

Required Amount

Refrigerant

(oz./ft.)

*

0.22

CMH3172 100 150 (L1+L2+L3+L4) 230 (L1+L2+L3+L4) 50 0.22

* If total tubing length becomes 150 to 200 ft. (Max.) or 150 to 230 ft. (Max.), charge additional refrigerant (R410A) by 0.22 oz./ft.

No additional charge of compressor oil is necessary. For more detailed charging information, refer to the Technical & Service Manual.

5

07-155 CMH1972-3172 6/6/07 9:34 AM Page 6

2-2. Connecting Indoor Units

(1) Connecting indoor unit for CMH1972

(A)

Outdoor unit

3/8"(9.52mm)

C

3/8"(9.52mm)

B

3/8"(9.52mm)

A

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

Indoor unit

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

1/4"(6.35mm)

Fig. 4a

(B)

Outdoor unit

3/8"(9.52mm)

C

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

B

3/8"(9.52mm)

1/4"(6.35mm)

1/2"(12.70mm)

A

3/8"(9.52mm)

Flare 3/8"(9.52mm)

1/4"(6.35mm)

Union 1/2"(12.70mm)

A joint for connecting tubes of different sizes

(3/8"(9.52mm) 1/2"(12.70mm)) Supplied Reducer

Fig. 4b

Indoor unit

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS1872)

(2) Connecting indoor unit for CMH2472

(A)

Outdoor unit

3/8"(9.52mm)

D

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

C

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

B

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

A

1/2"(12.70mm)

Flare 1/2"(12.70mm)

1/4"(6.35mm)

Union 3/8"(9.52mm)

(1/2"(12.70mm) 3/8"(9.52mm)) Supplied Reducer

Fig. 4c

Indoor unit

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

6

07-155 CMH1972-3172 6/6/07 9:34 AM Page 7

(B)

3/8"(9.52mm)

Outdoor unit

D

3/8"(9.52mm)

C

3/8"(9.52mm)

B

1/2"(12.70mm)

A

3/8"(9.52mm)

Indoor unit

(KMHS0772,KMHS0972,KMHS1272)

1/4"(6.35mm)

3/8"(9.52mm)

(KMHS0772,KMHS0972,KMHS1272)

1/4"(6.35mm)

3/8"(9.52mm)

(KMHS0772,KMHS0972,KMHS1272)

1/4"(6.35mm)

1/2"(12.70mm)

(KMHS1872)

1/4"(6.35mm)

Fig. 4d

(C)

Outdoor unit

3/8"(9.52mm)

D

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

C

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

B

3/8"(9.52mm)

1/4"(6.35mm)

5/8"(15.88mm)

A

1/2"(12.70mm)

Flare 1/2"(12.70mm)

1/4"(6.35mm)

Union 5/8"(15.88mm)

(1/2"(12.70mm) 5/8"(15.88mm)) Locally purchased

Fig. 4e

Indoor unit

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS2472)

(D)

Outdoor unit

3/8"(9.52mm)

D

3/8"(9.52mm)

C

3/8"(9.52mm)

B

1/2"(12.70mm)

A

1/4"(6.35mm)

1/4"(6.35mm)

3/8"(9.52mm)

3/8"(9.52mm)

1/2"(12.70mm)

1/4"(6.35mm)

5/8"(15.88mm)

Indoor unit

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS1872)

(KMHS2472)

1/4"(6.35mm)

Flare 1/2"(12.70mm) Union 5/8"(15.88mm)

(1/2"(12.70mm) 5/8"(15.88mm))

Locally purchased

Flare 3/8"(9.52mm) Union 1/2"(12.70mm)

(3/8"(9.52mm) 1/2"(12.70mm))

Locally purchased

Fig. 4f

7

07-155 CMH1972-3172 6/6/07 9:34 AM Page 8

(3) Connecting indoor unit for CMH3172

(A)

Outdoor unit Indoor unit

3/8"(9.52mm)

3/8"(9.52mm)

D

1/4"(6.35mm)

3/8"(9.52mm)

3/8"(9.52mm)

C

1/4"(6.35mm)

3/8"(9.52mm)

1/2"(12.70mm)

B

1/4"(6.35mm)

3/8"(9.52mm)

1/2"(12.70mm)

A

Flare 1/2"(12.70mm)

1/4"(6.35mm)

Union 3/8"(9.52mm)

(1/2"(12.70mm) 3/8"(9.52mm)) Supplied Reducer

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

Fig. 4g

(B)

Outdoor unit

3/8"(9.52mm)

D

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

C

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

B

1/2"(12.70mm)

1/4"(6.35mm)

1/2"(12.70mm)

A

1/2"(12.70mm)

Flare 1/2"(12.70mm)

1/4"(6.35mm)

Union 3/8"(9.52mm)

(1/2"(12.70mm 3/8"(9.52mm)) Supplied Reducer

Fig. 4h

Indoor unit

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS1872)

(C)

Outdoor unit

3/8"(9.52mm)

D

3/8"(9.52mm)

C

1/2"(12.70mm)

B

1/2"(12.70mm)

A

1/4"(6.35mm)

1/4"(6.35mm)

1/4"(6.35mm)

1/4"(6.35mm)

3/8"(9.52mm)

3/8"(9.52mm)

1/2"(12.70mm)

1/2"(12.70mm)

Fig. 4i

Indoor unit

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS1872)

(KMHS1872)

8

07-155 CMH1972-3172 6/6/07 9:34 AM Page 9

(D)

Outdoor unit

3/8"(9.52mm)

D

3/8"(9.52mm)

C

1/2"(12.70mm)

B

1/2"(12.70mm)

A

1/4"(6.35mm)

1/4"(6.35mm)

1/4"(6.35mm)

1/4"(6.35mm)

3/8"(9.52mm)

3/8"(9.52mm)

3/8"(9.52mm)

5/8"(15.88mm)

Indoor unit

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS2472)

Flare 1/2"(12.70mm) Union 5/8"(15.88mm)

(1/2"(12.70mm) 5/8"(15.88mm))

Locally purchased

Flare 1/2"(12.70mm) Union 3/8"(9.52mm)

(1/2"(12.70mm) 3/8"(9.52mm))

Supplied Reducer

Fig. 4j

(E)

Outdoor unit Indoor unit

3/8"(9.52mm)

D

3/8"(9.52mm)

1/4"(6.35mm)

3/8"(9.52mm)

C

3/8"(9.52mm)

1/4"(6.35mm)

1/2"(12.70mm)

B

1/2"(12.70mm)

1/4"(6.35mm)

5/8"(15.88mm)

1/2"(12.70mm)

A

Flare 1/2"(12.70mm)

1/4"(6.35mm)

Union 5/8"(15.88mm)

(1/2"(12.70mm) 5/8"(15.88mm)) Locally purchased

(KMHS0772,KMHS0972,KMHS1272)

(KMHS0772,KMHS0972,KMHS1272)

(KMHS1872)

(KMHS2472)

Fig. 4k

9

07-155 CMH1972-3172 6/6/07 9:34 AM Page 10

2-3. Outdoor Unit

AVOID:

G heat sources, exhaust fans, etc. (Fig. 5a)

G damp, humid or uneven locations.

DO:

G choose a place as cool as possible.

G choose a place that is well ventilated.

G allow enough room around the unit for air intake/ exhaust and possible maintenance. (Fig. 5b)

G provide a solid base (level concrete pad, concrete block, 6"

× 1'4" (15 × 40 cm) beams or equal), a minimum of 6" (15 cm) above ground level to reduce humidity and protect the unit against possible water damage and decreased service life. (Figs. 5c and 5d)

CAUTION

A solid base must not cover the hole of the bottom plate.

G Install cushion rubber under unit’s feet to reduce vibration and noise. (Fig. 5e)

G use lug bolts or equal to bolt down unit, reducing vibration and noise.

G

Install in a location where no antenna of a television or radio exists within 10' (3 m).

Outdoor unit

NO

Hot air

Fig. 5a

Exhaust fan

Heat source

Obstacle above

Min.

7' (2 m)

Min.

7' (2 m)

Air intake Min. 6" (15 cm) Valve side

Min. 10"

(25 cm)

Min.

4" (10 cm)

Air discharge

Min.

1’8" (50 cm)

Fig. 5b

Ground

Min. 6" (15 cm)

Air intake

Drain holes

Fig. 5c

Anchor bolts

(4 pcs.)

Min. 6" (15 cm)

Air intake

Concrete or equal

About 16" (40 cm)

Fig. 5d

About 6" (15 cm)

Fig. 5e

Cushion rubber

10

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2-4. Outer Dimensions of Outdoor Unit

(1) CMH1972

23-15/16 5-11/32

15/32

A

A

35-7/16 (900) 2-29/32

(2) CMH2472

23-15/16 5-11/32

15/32

A

Service valve on narrow tube side

(Outer diameter 1/4"(6.35))

Service valve on wide tube side

(Outer diameter 3/8"(9.52))

Fig. 6a

1-13/16

2-1/16

A

35-7/16 (900) 2-29/32

2-1/32 4-1/2

Service valve on narrow tube side

(Outer diameter 1/4"(6.35))

Service valve on wide tube side

(Outer diameter 3/8"(9.52))

(3) CMH3172

23-15/16 5-11/32

15/32

A

Fig. 6b

A

35-7/16 (900) 2-29/32

1-13/16

2-1/16

2-13/32

2-1/32 4-1/2

Service valve on wide tube side

(Outer diameter 1/2"(12.70))

Service valve on narrow tube side

(Outer diameter 1/4"(6.35))

Service valve on wide tube side

(Outer diameter 3/8"(9.52))

Fig. 6c

11

1-13/16

2-1/16

2-13/32

2-1/32 4-1/2

Service valve on wide tube side

(Outer diameter 1/2"(12.70)) unit: inch (mm)

07-155 CMH1972-3172 6/6/07 9:34 AM Page 12

2-5.

Diagram of Outdoor Unit Installation

Never install only a single indoor unit.

Over 4"(10cm)

Be sure to connect indoor and outdoor units only in combinations that are listed in the catalog or in the combination table that was provided with the outdoor unit.

(Use caution. Connecting any other model may result in operation failure and malfunction.)

The dimensions indicated by in the figure below are spaces that are required in order to maintain performance. Install in a location where the dimensions indicated by are ensured, and where 2 or more faces of the unit are unobstructed. In principle, the top direction should be unobstructed.

Over 8"(20cm)

Power breaker

Ensure 6"(15cm) of space if a drain hose is to be used.

D

C

B

A

Over 1'8"(50cm)

Base (not provided)

(concrete or similar material)

Fasten with anchor bolts

(not provided)

(3/8" or M10, 4 locations)

Fig. 7

Ground wire

(not provided)

Service space

Over 10"(25cm)

Access panel C

Indoor unit D

Indoor unit C

Indoor unit B

Indoor unit A

12

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3. Installation Process

3-1.

Embedding the Tubing and Wiring

G Do not connect tubes to locations that are embedded.

G

Be sure to bind refrigerant tubing and inter-unit cables together with vinyl tape.

G The power cable must be obtained on-site.

(#12: Less than 85 ft.)

# ... AWG (American Wire Gauge)

G

Be sure to apply the provided labels to both ends of the inter-unit cables to prevent miswiring.

G Securely seal the end of embedded tubing with vinyl tape in order to prevent dirt or moisture entry.

G

In order to prevent insulation breakdown and ground faults, do not allow the wire ends to contact rainwater, or be subject to dew condensation.

3-2. Use of the Flaring Method

Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units. In this method, the copper tubes are flared at each end and connected with flare nuts.

3-3. Flaring Procedure with a Flare Tool

(1) Cut the copper tube to the required length with a tube cutter. It is recommended to cut approx. 12" to

20" (30 to 50 cm) longer than the tubing length you estimate.

(2) Remove burrs at the end of the copper tube with a tube reamer or file. This process is important and should be done carefully to make a good flare.

(Fig. 8)

Before

Deburring

After

Fig. 8

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NOTE

When reaming, hold the tube end downward and be sure that no copper scraps fall into the tube. (Fig. 9)

(3) Remove the flare nut from the unit and be sure to mount it on the copper tube.

(4) Make a flare at the end of copper tube with a flare tool.*

(Figs. 10 and 11)

(*Use “RIGID” or equivalent.)

NOTE

A good flare should have the following characteristics:

G

G

G inside surface is glossy and smooth.

edge is smooth.

tapered sides are of uniform length.

3-4. Caution before Connecting Tubes Tightly

a) Be sure to apply a sealing cap or water-proof tape to prevent dust or water from getting into the tubes before they are used.

b) Be sure to apply refrigerant lubricant to the matching surfaces of the flare and union before connecting them together. This is effective for reducing gas leaks.

(Fig. 12) c) For proper connection, align the union tube and flare tube straight with each other, then screw in the flare nut lightly at first to obtain a smooth match. (Fig. 13)

If the special R410A flare tool is used:

0 to 0.0196"

(0 to 0.5 mm)

Fig. 9

Flare tool

Copper tubing

Reamer

If the previous flare tool

(clutch-type) is used:

Fig. 11

Apply refrigerant lubricant here and here

Fig. 12

0.0472" (1.2 mm)

Adjust so that the amount of tube protrusion is as shown in the figure.

Fig. 10

3-5. Tubing Connections

a) Temporary connection:

Screw in 3 – 5 rotations by hand. (Fig.14) b) To fasten the flare nuts, apply specified torque as:

Table 4

Tube Dia.

1/4" (6.35 mm)

3/8" (9.52 mm)

1/2" (12.70 mm)

5/8" (15.88 mm)

Tightening Torque

Approx. 120 – 160 lbs·in (140 – 180 kgf·cm)

Approx. 300 – 360 lbs·in (340 – 420 kgf·cm)

Approx. 430 – 540 lbs·in (490 – 610 kgf·cm)

Approx. 590 – 710 lbs·in (680 – 820 kgf·cm)

Union

Flare nut

Fig. 13

Flare nut

Copper tubing

Service valve on narrow tube side

Service valve on wide tube side

Fig. 14

14

B

A

D

C

Apply the provided labels to the indoor and outdoor unit tubing connectors to prevent errors in connections.

07-155 CMH1972-3172 6/6/07 9:34 AM Page 15

CAUTION

Be sure to match refrigerant tubing and electric wiring between indoor and outdoor units. For more details, refer to

“Tubing Check Control” in the

Technical & Service Manual.

3-6. Insulation of Refrigerant Tubing

IMPORTANT

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 minimum 5/16"

(8 mm). (Fig. 17)

3-7. Taping the Tubes

CAUTION

After a tube has been insulated, never try to bend it into a narrow curve, as this may cause the tube to break or crack.

(1) At this time, the 2 refrigerant tubes (and electrical wire if local codes permit) should be taped together with armoring tape. The drain hose may also be included and taped together as 1 bundle with the tubing.

(2) Wrap the armoring tape from the bottom of the outdoor unit to the top of the tubing where it enters the wall. As you wrap the tubing, overlap half of each previous tape turn. (Fig. 18)

(3) Clamp the tubing bundle to wall, using 1 clamp approx.

every 47" (120 cm).

NOTE

Do not wind the armoring tape too tightly, since this will decrease the heat insulation effect. Also, be sure the condensation drain hose splits away from the bundle and drips clear of the unit and the tubing.

3-8. Finishing the Installation

After finishing insulating and taping over the tubing, use sealing putty to seal off the hole in the wall to prevent rain and draft from entering. (Fig. 19)

Indoor unit

Torque wrench

Spanner

Fig. 15

Outdoor unit

Min.

5/16"

(8 mm)

Fig. 16

Insulation

Insulation

Thickness: min. 5/16"

(8 mm)

Fig. 17

Fig. 18

Apply putty here

Tubing

Fig. 19

Clamp

Insulated tubes

15

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4. Air Purging

Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. Therefore, they must be purged completely.

G pressure in the system rises

G operating current rises

G cooling efficiency drops

G moisture in the air may freeze and block capillary tubing

G water may lead to corrosion of parts in the refrigerant system

Service valve on narrow

Service valve on wide tube side

D

C

B

A

Low-pressure valve

Manifold gauge

(special for R410A)

High-pressure valve

Leave the valve open.

Open

Lo Hi

Vacuum pump adapter

(for preventing reverse flow)

(special for

R410A)

I

Air Purging with a Vacuum Pump

(for Test Run)

G In order to protect the earth’s environment, be sure to use a vacuum pump to perform the air purge.

(Never perform an air purge by using the refrigerant gas cylinder or other external gas, or by using the gas inside the outdoor unit.)

With push-pin

Hex wrench

Charging hose

(special for R410A)

Fig. 20

Vacuum pump

CAUTION

In order to prevent charging errors with

A/C that uses R410A, the screw diameter at the service valve charging port has been changed. When recharging or performing other servicing, use the special charging hose and manifold gauge.

Perform the air purge for tubes A, B, C, and D. Use the same procedures for all tubes.

(1) Check that each tube (both narrow and wide tubes) between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed. Note that both narrow and wide tube service valves on the outdoor unit are kept closed at this stage.

Spindle

Service port

Screw diameter: 1/2

UNF 20 threads

Valve core

(2) Using an adjustable wrench or box wrench, remove the valve caps from the service valve on both narrow and wide tubes.

Stopper

Cap nut tightening torque:

60 – 95 lbs·in

(70 – 110 kgf·cm)

(Tighten by hand, then use a wrench to turn approximately 30 .)

(3) Connect a vacuum pump and a manifold valve (with pressure gauges) to the service port on the wide tube service valve. (Fig. 20).

Cap tightening torque:

170 – 215 lbs·in

(200 – 250 kgf·cm)

(Tighten by hand, then use a wrench to turn.)

<Structure of service valve on wide tube side>

NOTE

External diameter of service port

R410A: 5/16"

CAUTION

Before using the vacuum pump adapter, read the vacuum pump adapter manual, and use the adapter correctly.

Fig. 21

CAUTION

Be sure to use a manifold valve for air purging. If it is not available, use a stop valve for this purpose.

The “Hi” knob of the manifold valve must always be kept closed.

G

When using a hex wrench to open the spindle, an extremely small amount of refrigerant may leak.

This does not indicate a problem.

G

Use a hex wrench of a type to which force can be easily applied.

16

07-155 CMH1972-3172 6/6/07 9:34 AM Page 17

(4) With the “Lo” knob of the manifold valve open and high-pressure valve (“Hi”) closed completely, run the vacuum pump. Run the pump until the pressure is –101 kPa (–76 cmHg). The operation time for the vacuum pump varies with tubing length and the capacity of the pump. The following table shows the amount of time required for evacuation:

Table 5

Required time for evacuation when capacity of 100 liter/h vacuum pump is used

20 min. or more

NOTE

The required time in the above table is calculated based on the assumption that the ideal (or target) vacuum condition is around 10 mmHg abs.

(5) With the vacuum pump still running, close the “Lo” knob of the manifold valve. Then stop the vacuum pump. Fully close the low-pressure valve and stop the vacuum pump. (Wait 1 – 2 minutes and check that the manifold gauge pointer does not return. If it does return, find and repair the leak, then apply the vacuum again.)

(6) With a hex wrench, turn the valve stem on the narrow tube service valve counter-clockwise by 90 degrees (1/4 turn) for 10 seconds, and then turn the stem clockwise to close it again.

CAUTION

Be sure to completely insert the hex wrench before attempting to turn the valve.

(7) With a standard screwdriver, turn the wide tube service valve stem counterclockwise to fully open the valve.

(8) Turn the narrow tube service valve stem counterclockwise to fully open the valve.

(9) Loosen the vacuum hose connected to the wide tube service port slightly to release the pressure.

Then, remove the hose.

(10) Leak test all joints at the tubing (both indoor and outdoors) with liquid soap. Bubbles indicate a leak.

Be sure to wipe off the soap with a clean cloth.

CAUTION

If a CFC gas detector is used, use a special detector for HFC refrigerant (such as R410 and

R134a).

17

07-155 CMH1972-3172 6/6/07 9:34 AM Page 18

(11) Replace the flare nut on the wide tube service port and fasten the flare nut securely with an adjustable wrench or box wrench. Next, mount the valve cap and tighten it with a torque wrench (the cap needs to be tightened with the torque of 180 lbs·in (200 kgf·cm)). This process is very important to prevent gas from leaking from the system.

(12) Test run the air conditioner. (See page 23.)

(13) While the air conditioner is running, apply liquid soap to check for any gas leaks around the service valves or caps.

(14) If there is no leakage, stop the air conditioner.

(15) Wipe off the soap on the tubing.

This completes air purging with a vacuum pump and the air conditioner is ready for actual operation.

I

Pump Down

In order to protect the earth’s environment, be sure to perform pump-down to recover refrigerant gas without releasing it into the atmosphere.

Close

G

When relocating or disposing of the A/C, request this service from the dealer where the unit was purchased, or from an appropriate agent. Perform pump-down as described below.

D

Narrow tube side Close

C

What is pump-down?

G

Pump-down refers to recovering the refrigerant gas from the refrigerant cycle at the outdoor unit. This work must be performed during cooling operation. The refrigerant gas cannot be recovered during heating operation.

G

During winter, or if the temperature sensor prevents cooling operation, perform “forced cooling operation.”

Charging port

Close

Close

B

A

Fig. 22

Pump-down procedure

(1) Fully close the spindles at the valves on the narrow tube side of tubes A, B, C and D. (Refer to Fig. 22.)

(2) Connect the manifold gauge to the charging port at the valve on the wide tube side of tube D. Purge the air from the charging hose.

(Refer to Fig. 23.)

(3) Perform cooling operation or forced cooling operation.

When the pressure at the low-pressure side is 0.15 – 0.2 MPa

(0.5 – 1 kg/cm

2

G), fully close the spindles at the valves on the wide tube side of tubes A, B, C, and D, and immediately stop operation. (Refer to Fig. 23.)

In the winter, the outdoor unit may stop after 5 - 10 minutes of operation. This is in order to protect the indoor unit heat exchanger from freezing and does not indicate a problem.

Cap

Cap

(4) Disconnect the manifold gauge and the inter-unit tubes, and attach the caps and flare nuts. At this point, pump-down is completed. (If the caps and flare nuts are not reattached, there is the danger of gas leakage.) (Refer to Fig. 24.)

Cap

Wide tube side

Cap

If pump-down is not possible

If the A/C cannot be operated because of a malfunction or other cause, use a refrigerant recovery device to recover the refrigerant.

18

B

A

D

C

Fig. 23

Manifold gauge

Fig. 24

After disconnecting the inter-unit tubes, attach the flare nuts with flare bonnets.

07-155 CMH1972-3172 6/6/07 9:34 AM Page 19

5. Wiring Instructions

5-1. General Precautions on Wiring

(1) Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram.

(2) Provide a power outlet to be used exclusively for each unit, with a power supply disconnect and circuit breaker for overcurrent protection provided in the exclusive line.

(3) To prevent possible hazard due to insulation failure, the unit must be grounded.

(4) Each wiring connection must be done tightly and in accordance with the wiring system diagram. Wrong wiring may cause the unit to misoperate or become damaged.

(5) Do not allow wiring to touch the refrigerant tubing, compressor, or any moving parts of the fan.

(6) Unauthorized changes in the internal wiring can be very dangerous. The manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes.

5-2. Recommended Wire Length and Diameter

Regulations on wiring diameter differ from locality to locality.

For field wiring requirements, please refer to your local electrical codes. Carefully observe these regulations when carrying out the installation.

Table 6 shows maximum wire lengths for control line and power line and fuse or circuit capacity.

NOTE

Refer to the wiring system diagram (Fig. 25a or 25b) for the meaning of (A), (B), and (C) in Table 6.

Refer to your local codes or in the absence of local codes see the National Electric Code: ANSI/NFPA70.

Table 6

Model

CMH1972

CMH2472

CMH3172

AWG

Max. Power Line Length (ft.)

(A)

(#12)

85 (Max.)

85 (Max.)

85 (Max.)

Max. Control Line Length (ft.)

(B) (C)

(#14)

82 (Max.)

82 (Max.)

100 (Max.)

Fuse or

Circuit Capasity

20 A

20 A

20 A

# ... AWG (American Wire Gauge)

19

07-155 CMH1972-3172 6/6/07 9:34 AM Page 20

WARNING

G

G

G

G

Be sure to comply with local codes on running the wire from the indoor unit to the outdoor unit (size of wire and wiring method, etc.).

Each wire must be firmly connected.

No wire should be allowed to touch refrigerant tubing, the compressor, or any moving part.

Be sure to connect power wires correctly matching up numbers on terminals of the outdoor unit and respective indoor units A – D.

WARNING

G

G

G

G

To avoid the risk of electric shock, each air conditioner unit must be grounded.

For the installation of a grounding device, please observe local electrical codes.

Grounding is necessary, especially for units using inverter circuits, in order to release charged electricity and electrical noise caused by high tension.

Otherwise, electrical shock may occur.

Place a dedicated ground more than 7' (2 m) away from other grounds and do not have it shared with other electric appliances.

CAUTION

G

G

Be sure to connect the power supply line to the outdoor unit as shown in the wiring diagram. The indoor unit draws its power from the outdoor unit.

Do not run wiring for antenna, signal, or power lines of television, radio, stereo, telephone, security system, or intercom any closer than 3'4" (1 m) from the power cable and wires between the indoor and outdoor units. Electrical noise may affect the operation.

5-3. Wiring System Diagram

3 indoor units with CMH1972

(A)

(B)

(C)

* Disconnect switch

Field supply

230/208V

1

230/208V

2

(B)

3

230/208V

(C)

Grounding line

Field supply

* Disconnect switch

(B)

(B)

230/208V

1

230/208V

2

3

* Disconnect switch

1

230/208V

(C) (B)

Field supply

(B)

Grounding line

230/208V

230/208V

OUTDOOR UNIT

Terminal(9P)

1

2

3

4

5

6

7

8

9

2

230/208V

3

(B)

(C)

Grounding line 1

Terminal

(2P)

2

(A)

Fig. 25a

*

NOTE

Disconnect switch may be required by national or local codes.

CAUTION

Always comply with national and local code requirements.

(A)

(B)

(C)

(D)

4 indoor units with CMH2472, CMH3172

1

2

1

*

Disconnect switch

Field supply

230/208V

2

3

230/208V

(C)

230/208V

Grounding line

1

2

(C)

*

Disconnect switch

Field supply

(B)

230/208V

(B)

230/208V

3

(B)

OUTDOOR UNIT

Terminal(12P)

1

2

3

4

5

230/208V

(B)

Grounding line

*

Disconnect switch

Field supply

(Inter-unit) power line

(B)

230/208V

6

7

8

3

230/208V

(C)

230/208V (B)

9

Grounding line

* Disconnect switch

Field supply

230/208V

10

11

(B)

1

12

230/208V

2

3

(C)

Grounding line

230/208V

(B)

(2P

1

2

(A)

Fig. 25b

20

07-155 CMH1972-3172 6/6/07 9:34 AM Page 21

5-4. How to Connect Wiring to the Terminal

WARNING

Loose wiring may cause the terminal to overheat or result in unit malfunction. A fire hazard may also exist. Therefore, be sure all wiring is tightly connected.

When connecting each power wire to the corresponding terminal, follow the instructions “How to connect wiring to the terminal” and fasten the wire securely tight with the fixing screw of the terminal plate.

How to connect wiring to the terminal a) For Indoor Unit

(1) Cut the wire end with a cutting pliers, then strip the insulation to expose the wire about 9/32" (7 mm).

See the label (Fig. 26) near the terminal plate.

(2) Using a screwdriver, loosen the terminal screw on the terminal plate.

(3) Insert the wire and tighten the terminal screw completely using a screwdriver.

b) For Outdoor Unit

I For solid core wiring (or F-cable)

(1) Cut the wire end with a cutting pliers, then strip the insulation to expose the solid wire about 15/16" (25 mm). (Fig. 27)

(2) Using a screwdriver, remove the terminal screw(s) on the terminal plate.

(3) Using the pliers, bend the solid wire to form a loop suitable for the terminal screw.

(4) Shape the loop wire properly, place it on the terminal plate and fix it securely with the removed terminal screw using a screwdriver.

I For stranded wiring

(1) Cut the wire end with a cutting pliers, then strip the insulation to expose the stranded wiring about 3/8"

(10 mm) and tightly twist the wire ends. (Figs. 28 and 29)

(2) Using a screwdriver, remove the terminal screw(s) on the terminal plate.

(3) Using a ring connector fastener or pliers, securely clamp each stripped wire end with a ring connector.

(Fig. 28)

(4) Place the ring connector wire, and replace and tighten the removed terminal screw using a screwdriver. (Fig. 30)

21

STRIP

SIZE

9/32"

(7 mm) (ACTUAL

SIZE)

Fig. 26

Solid wire

Insulation

Fig. 27

Stranded wire

Fig. 28

Twist wire ends

Fig. 29

Special washer

Wire

Screw

Ring connector

Terminal plate

Wire

Fig. 30

Loop

Ring connector

Screw and special washer

Ring connector

07-155 CMH1972-3172 6/6/07 9:34 AM Page 22

5-5. Wiring Instructions for the Outdoor Unit

CAUTION

G Be sure to correctly align inter-unit cables A, B, C and D.

Outdoor unit A

Terminal board

1 2

Indoor unit A

A is the indoor unit with refrigerant tubing that is connected to service valve

A (top) of the outdoor unit.

1 2 3

Indoor unit B

B is the indoor unit with refrigerant tubing that is connected to service valve

B (top) of the outdoor unit.

1 2 3

Terminal board

Inter-unit cables

#14 (not provided)

Label A

A

Terminal board

Inter-unit cables

#14 (not provided)

Label B

B

Indoor unit C

C is the indoor unit with refrigerant tubing that is connected to service valve

C (top) of the outdoor unit.

1 2 3

Terminal board

Inter-unit cables

#14 (not provided)

Label C

C

Indoor unit D

D is the indoor unit with refrigerant tubing that is connected to service valve

D (top) of the outdoor unit.

1 2 3

Terminal board

Label D

Inter-unit cables

#14 (not provided)

D

1 2 3 4 5 6 7 8 9 10 11 12

Power supply

(conduit)

Power:

Single-phase,

230/208VAC 60HZ

Power switch

(not provided)

Ground

Power cable (not provided)

(#12: Less than 85 ft.)

Be sure to perform grounding.

Attach a ground wire to either the outdoor unit or indoor unit.

If there is a grounding terminal inside the room, use the grounding screw inside the indoor unit.

Be sure to apply the provided labels to both ends of the inter-unit cables to prevent miswiring. The units will not function if the wiring connections are incorrect.

# ... AWG (American Wire Gauge)

Fig. 31

Inter Unit

(conduit)

G

G

G

G

G

Use a dedicated A/C circuit for power.

To make connections to the outdoor unit, remove the inspection panel and tubing panel.

Do not bring the inter-unit cables or power cable into contact with tubing or service valves.

Use outdoor unit cable fasteners and fasten the interunit cables at the location where the cables are doublesheathed.

Arrange the wiring so that the inter-unit cables are contained in the inspection panel and tubing panel, as shown in Fig. 31.

22

07-155 CMH1972-3172 6/6/07 9:34 AM Page 23

Regulations on wire size differ from locality to locality. For field wiring requirements, please refer to your local electrical codes. Make sure that the installation fully complies with all local and national regulations.

(1) Remove access panel “C”. (Fig. 32)

(2) Connect the inter-unit and power supply line according to the drawing on the panel side.

(3) Be sure to size each wire allowing approx. 4"

(10 cm) longer than the required length for wiring.

Store excess wiring inside the cabinet.

(4) When connections are completed, check that all connections are correct as shown in the wiring system diagram on panel side.

(5) Be sure to ground the unit according to your local codes.

6. Test Run

Performing a test run

G

Refer to the test run procedures in the indoor unit installation manual.

G Perform the test run separately for each connected indoor unit. If 2 units are operated simultaneously, it is not possible to correctly check for errors in tubing and wiring.

G If the room temperature is 59°F (15°C) or below, it may not be possible to check for tubing errors with cooling operation. If this occurs, perform heating operation for each unit individually, and check that warm air is discharged from each unit. If there is cold air mixed in with the warm air, check the tubing connections again.

Plug

Terminal block

Conduit plate

Lock nut

Cabinet

Inter unit

(Conduit)

Power supply

(Conduit)

Fig. 32

Access panel C

Conduit plate

Access panel “C”

Checking tubing and wiring

Perform the test run and check that operation is normal. If there is an error in tubing or wiring, the refrigerant may flow to indoor unit B when indoor unit A is operated (for example).

CAUTION

G

Stop operation immediately if there is an error in tubing or wiring. Turn the power (breaker) to OFF, and check whether the inter-unit cables are connected incorrectly, or whether the narrow tubes A and B are connected in reverse. Correct the connections.

G

If there is an error in tubing, pump-down must be performed. Be sure to perform pump-down. After making corrections, again purge the air from the tubes.

23

CAUTION

Make sure there is no gap between access panel “C” and the conduit plate.

Fig. 33

07-155 CMH1972-3172 6/6/07 9:34 AM Page 24

7. Connecting a Home Automation Device

The HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will be used, connect it to this terminal.

8. Installation Check Sheet

The strength of the installation location is sufficient to support the A/C weight.

The indoor and outdoor units are installed level and vertically.

The power and voltage are as specified.

Inter-unit cables are securely fastened to the terminal board.

Inter-unit cables are securely fixed.

The power cord and inter-unit cables are not connected anywhere along their paths.

The ground wire is securely connected.

An air purge of the refrigerant circuit has been conducted.

A leak test of the tubing connections has been performed.

Thermal insulation has been applied to the tubing connections.

Drain connections are secure and water drains properly.

Putty has been used to close the hole in the wall.

All service valves are fully open.

Remote controller signals are being positively received.

24

APPENDIX B UNIT COMBINATION TABLES

Name of Combination Table

<

List of Combination Tables

>

Model No. of Outdoor Unit

3-Room Outdoor Unit Combination Table

4-Room Outdoor Unit Combination Table

4-Room Outdoor Unit Combination Table

CMH1972

CMH2472

CMH3172

Remarks

OI-852-6-4180-821-00-4

OI-852-6-4180-822-00-5

OI-852-6-4180-805-00-4

NOTE

Be sure to operate the air conditioning system only when 2 or more indoor units have been installed. If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction.

A-2

Save this Combination Table!

Please be sure to hand over this sheet to the user.

3-Room Outdoor Unit Combination Table

CMH1972

<Combinations of Connectable Indoor Units>

The combinations of the indoor units listed in Table 1 and Table 2 are combinations solely of those units which can be operated concurrently. In addition to the combinations listed in the table, other combinations of indoor units are possible provided that the following conditions are satisfied.

Conditions:

1.

At least two or more indoor units must be connected to the multi outdoor unit. It is not acceptable for only one indoor unit to be connected.

2.

The total rated cooling capacity of the indoor units to be connected must be no more than 200% of the rated cooling capacity of the outdoor unit.

CAUTION

In this case, all the indoor units installed must not be operated concurrently under any circumstances. Otherwise, the air conditioner may not run properly and trouble may occur.

Example: When 3 indoor units are connected at 230V If the following holds true

Rated cooling capacity of CMH1972 outdoor unit: C=19100 (BTU/h)

Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)

Then:

C x 2 (200%) K1 + K2 + .......

19100 x 2 7500 + 11900 + 17500

38200 36900

It is therefore possible to connect 3 units with respective capacities of 7500 + 11900 + 17500.

However, since this combination is not found in the 3-room operation column of Table 1, operating all these units concurrently may result in trouble. At a time like this, shut down at least one of the 3 indoor units to match one of the combinations found in the 2-room operation column of Table 1.

at 208V If the following holds true

Rated cooling capacity of CMH1972 outdoor unit: C=19100 (BTU/h)

Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)

Then:

C x 2 (200%) K1 + K2 + .......

19100 x 2 7500 + 11900 + 17500

38200 36900

It is therefore possible to connect 3 units with respective capacities of 7500 + 11900 + 17500.

However, since this combination is not found in the 3-room operation column of Table 2, operating all these units concurrently may result in trouble. At a time like this, shut down at least one of the 3 indoor units to match one of the combinations found in the 2-room operation column of Table 2.

NOTE

Be sure to operate the air conditioning system only when 2 or more indoor units have been installed.

If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction.

Pub. OI-85264180

821

004 © SANYO 2008

< Combinations of operatable indoor units >

Voltage Rating : 230V 60Hz

CMH1972

(Rated cooling capacity at 230V: 19100 BTU/h)

NOTE

7500 : KMHS0772

9000 : KMHS0972

11900 : KMHS1272

17500 : KMHS1872

Table 1

Single-room

Operation

2-room

Operation

3-room

Operation

7500

9000

11900

17500

7500 +

7500 +

7500

9000

7500 + 11900

7500 + 17500

9000 + 9000

9000 + 11900

9000 + 17500

11900 +

11900 +

7500 +

7500 +

7500 +

7500 +

7500 +

7500 +

7500 +

11900

17500

7500 +

7500 +

7500 +

7500 +

9000 +

7500

9000

11900

17500

9000

9000 + 11900

9000 + 17500

7500 + 11900 + 11900

9000 + 9000 + 9000

9000 + 9000 + 11900

9000 + 11900 + 11900

11900 + 11900 + 11900

Indoor Unit Combination

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

=

7500

9000

A

7500

9000

11900 11900

17500 17500

15000

16500

7500

7485

19400

25000

18000

20900

26500

23800

29400

22500

24000

26900

32500

25500

28400

34000

31300

27000

29900

32800

35700

Room Room

B

6716

5507

5263

4400

5603

5032

4202

4567

6367

5752

5245

6367

8500

7627

6353

9200

7728

6000

5742

Room

C

7500

9015

10684

12893

8500

10073

12347

9200

11372

6000

5742

6000

6916

5263 8373

4400 10300

6749

6062

5062

7266

6367

5752

6927

6367

6749

8006

9837

7266

6367

7597

6927

6367

Indoor Unit Capacity (BTU/h)

COOLING

Total Performance

Capacity ( Min. Max.

)

7500 ( 4700 8800 )

9000 ( 4700 - 10900 )

11900 ( 5100 - 12200 )

17500 ( 5400 - 19100 )

15000 ( 6800 - 17400 )

16500 ( 6800 - 19100 )

17400 ( 6800 - 19100 )

18400 ( 7100 - 19100 )

17000 ( 6800 - 19100 )

17700 ( 7100 - 19100 )

18700 ( 7100 - 19100 )

18400 ( 6800 - 19100 )

19100 ( 7100 - 19100 )

18000 ( 8500 - 19100 )

18400 ( 9800 - 19100 )

18900 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

Room Room

B

6576

5636

6237

5971

5124

5688

8267

7832

7440

8267

A

8500

12200

14300

20400

8500

8525

8358

7000

11600

10800

9075

11900

10129

7800

6919

Room

C

8500

12275

14042

16800

11600

12600

15125

11900

14471

7800

6919

7800

9963

6578 11048

5636 13527

8981 8981

8598 10031

7379 12298

9556

8267

9556

8267

7832

8680

8267

9137

8680

8267

HEATING

Total Performance

Capacity (

8500 (

12200 (

14300 (

20400 (

17000 (

20800 (

22400 (

23800 (

Min. Max.

6100 - 14600

6100 - 16000

6400 - 16700

6800 - 24800

6800 - 21800

7100 - 24800

7100 - 24800

8100 - 24800

23200 (

23400 (

24200 (

7800 - 24800

7800 - 24800

8100 - 24800

23800 (

24600 (

7800 - 24800

8100 - 24800

23400 ( 9200 - 24800 )

23800 ( 10200 - 24800 )

)

)

)

)

)

)

)

)

)

)

)

)

)

)

24200 ( 10900 - 24800 )

24800 ( 11600 - 24800 )

24200 ( 11600 - 24800 )

24600 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

The table lists the wall-mounted type of indoor units as representative models.

-2-

Voltage Rating : 208V 60Hz

CMH1972

(Rated cooling capacity at 208V: 19100 BTU/h)

NOTE

7500 : KMHS0772

9000 : KMHS0972

11900 : KMHS1272

17500 : KMHS1872

Table 2

Single-room

Operation

2-room

Operation

3-room

Operation

Indoor Unit Combination

7500

9000

11900

17500

7500 +

7500 +

7500

9000

7500 + 11900

7500 + 17500

9000 + 9000

9000 + 11900

9000 + 17500

11900 + 11900

11900 +

7500 +

7500 +

7500 +

7500 +

7500 +

17500

7500 +

7500 + 9000

7500 + 11900

7500 +

9000 +

7500

17500

9000

7500 + 9000 + 11900

7500 + 9000 + 17500

7500 + 11900 + 11900

9000 +

9000 +

9000 +

9000 +

9000

11900

9000 + 11900 + 11900

11900 + 11900 + 11900

Room Room

A B

= 7500 7500

= 9000 9000

= 11900 11900

= 17500 17500

= 15000 7500

= 16500

= 19400

= 25000

= 18000

= 20900

= 26500

= 23800

7485

6716

5507

8500

7627

6353

9200

= 29400

= 22500

= 24000

= 26900

= 32500

= 25500

= 28400

= 34000

= 31300

= 27000

= 29900

= 32800

= 35700

7728

6000

5742

5263

4400

5603

5032

4202

4567

6367

5752

5245

6367

Room

C

7500

9015

10684

12893

8500

10073

12347

9200

11372

6000

5742

5263

6000

6916

8373

4400 10300

6749 6749

6062

5062

7266

6367

5752

6927

6367

8006

9837

7266

6367

7597

6927

6367

Indoor Unit Capacity (BTU/h)

COOLING

Capacity

Total Performance

( Min. Max.

)

7500 ( 4700 8800 )

9000 ( 4700 - 10900 )

11900 ( 5100 - 12200 )

17500 ( 5400 - 19100 )

15000 ( 6800 - 17400 )

16500 ( 6800 - 19100 )

17400 ( 6800 - 19100 )

18400 ( 7100 - 19100 )

17000 ( 6800 - 19100 )

17700 ( 7100 - 19100 )

18700 ( 7100 - 19100 )

18400 ( 6800 - 19100 )

19100 ( 7100 - 19100 )

18000 ( 8500 - 19100 )

18400 ( 9800 - 19100 )

18900 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

19100 ( 9800 - 19100 )

Room Room

A B

Room

C

8500

12200

14300

20400

8500 8500

8525 12275

8358 14042

7000 16800

11600 11600

10800 12600

9075 15125

11900 11900

10129 14471

7800

6919

6576

7800 7800

6919 9963

6576 11048

5636

6237

5636 13527

8981 8981

5971

5124

5688

8267

7832

7440

8267

8598 10031

7379

9556

12298

9556

8267

7832

8680

8267

8267

9137

8680

8267

HEATING

Capacity

Total Performance

( Min. Max.

)

8500 (

12200 (

14300 (

20400 (

17000 (

20800 (

22400 (

23800 (

23200 (

23400 (

24200 (

23800 (

6100 - 14600

6800 - 21800

7100 - 24800

)

6100 - 16000 )

6400 - 16700 )

6800 - 24400 )

)

)

7100 - 24800 )

8100 - 24800 )

7800 - 24800 )

7800 - 24800 )

8100 - 24800 )

7800 - 24800 )

24600 (

23400 (

8100 - 24800

9200 - 24800

)

)

23800 ( 10200 - 24800 )

24200 ( 10900 - 24800 )

24800 ( 11600 - 24800 )

24200 ( 11600 - 24800 )

24600 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

24800 ( 11600 - 24800 )

The table lists the wall-mounted type of indoor units as representative models.

-3-

Save this Combination Table!

Please be sure to hand over this sheet to the user.

4-Room Outdoor Unit Combination Table

CMH2472

<Combinations of Connectable Indoor Units>

The combinations of the indoor units listed in Table 1 and Table 2 are combinations solely of those units which can be operated concurrently. In addition to the combinations listed in the table, other combinations of indoor units are possible provided that the following conditions are satisfied.

Conditions:

1.

At least two or more indoor units must be connected to the multi outdoor unit. It is not acceptable for only one indoor unit to be connected.

2.

The total rated cooling capacity of the indoor units to be connected must be no more than 200% of the rated cooling capacity of the outdoor unit.

CAUTION

In this case, all the indoor units installed must not be operated concurrently under any circumstances. Otherwise, the air conditioner may not run properly and trouble may occur.

Example: When 4 indoor units are connected at 230V If the following holds true

Rated cooling capacity of CMH2472 outdoor unit: C=23200 (BTU/h)

Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)

Then:

C x 2 (200%) K1 + K2 + .......

23200 x 2 7500 + 7500 + 7500 + 17500

46400 40000

It is therefore possible to connect 4 units with respective capacities of 7500 + 7500 + 7500 + 17500.

However, since this combination is not found in the 4-room operation column of Table 1, operating all these units concurrently may result in trouble. At a time like this, shut down at least one of the 4 indoor units to match one of the combinations found in the 3-room operation column of Table 1.

at 208V If the following holds true

Rated cooling capacity of CMH2472 outdoor unit: C=23200 (BTU/h)

Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)

Then:

C x 2 (200%) K1 + K2 + .......

23200 x 2 7500 + 7500 + 7500 + 17500

46400 40000

It is therefore possible to connect 4 units with respective capacities of 7500 + 7500 + 7500 + 17500.

However, since this combination is not found in the 4-room operation column of Table 2, operating all these units concurrently may result in trouble. At a time like this, shut down at least one of the 4 indoor units to match one of the combinations found in the 3-room operation column of Table 2.

NOTE

Be sure to operate the air conditioning system only when 2 or more indoor units have been installed.

If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction.

Pub. OI-85264180

822

005 © SANYO 2008

< Combinations of operatable indoor units >

Voltage Rating : 230V 60Hz

CMH2472

(Rated cooling capacity at 230V: 23200 BTU/h)

NOTE

7500 : KMHS0772

9000 : KMHS0972

11900 : KMHS1272

17500 : KMHS1872

24200 : KMHS2472

Table 1

Single-room

Operation

2-room

Operation

3-room

Operation

7500

9000

11900

17500

24200

7500 +

7500 +

7500

9000

7500 + 11900

7500 + 17500

7500 + 24200

9000 + 9000

9000 + 11900

9000 + 17500

9000 + 24200

11900 + 11900

11900 + 17500

11900 + 24200

17500 + 17500

7500 +

7500 +

7500 +

7500 +

7500 +

7500 +

7500 +

7500

9000

7500 + 11900

7500 + 17500

9000 + 9000

7500 +

7500 +

9000 +

9000 +

11900

17500

7500 + 11900 + 11900

7500 + 11900 + 17500

9000 + 9000 + 9000

9000 +

9000 +

9000 +

9000 +

11900

17500

9000 + 11900 + 11900

9000 + 11900 + 17500

11900 + 11900 + 11900

11900 + 11900 + 17500

Indoor Unit Combination

Indoor Unit Capacity (BTU/h)

= 7500

=

9000

7500

9000

= 11900 11900

= 17500 17500

=

24200 23200

= 15000 7500

= 16500

= 19400

= 25000

= 31700

7485

7500

9015

7488 11912

6705 15695

5488 17712

= 18000

= 20900

= 26500

9000 9000

8618 11382

7746 15054

= 33200 6306 16894

= 23800 11200 11200

= 29400

=

36100

9387 13813

7660 15540

= 35000 11600 11600

= 22500

= 24000

=

26900

= 32500

7333

6990

6405

5345

7333

6990

6405

5345

7333

8420

10190

12511

= 25500

=

28400

= 34000

= 31300

=

36900

= 27000

=

=

=

29900

35500

32800

= 38400

= 35700

=

41300

6688

6113

5104

5548

4704

7733

6986

5883

6371

5441

7733

6683

8056

7363

6986

7186

7733

6683

8056

9725

6148 11948

8826 8826

7484 11012

7733 7733

9227

5883 11433

8415 8415

10573

7733

9834

COOLING

Room Room Room Room

A B C D Capacity

Total Performance

( Min. Max.

)

7500 ( 4700 8800 )

9000 ( 4700 - 10900 )

11900 ( 5100 - 12200 )

17500 ( 5400 - 19700 )

23200 ( 5400 - 23200 )

15000 ( 6800 - 17400 )

16500 ( 6800 - 19700 )

19400 ( 6800 - 22800 )

22400 ( 7100 - 23200 )

23200 ( 7100 - 23200 )

18000 ( 6800 - 21400 )

20000 ( 6800 - 23200 )

22800 ( 7100 - 23200 )

23200 ( 7100 - 23200 )

22400 ( 6800 - 23200 )

23200 ( 7100 - 23200 )

23200 ( 7100 - 23200 )

23200 ( 7100 - 23200 )

22000 ( 8500 - 23200 )

22400 ( 9800 - 23200 )

23000 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

22800 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

Room Room

A B

Room

C

8500

12200

14300

20400

27200

8500 8500

8525 12275

8507 14293

8294 19906

6636 22564

12200 12200

11908 13892

10725 17875

8688 20512

13600 13600

11941 17059

9657 19543

14600 14600

8467

7907

8467 8467

7907 11386

7663

6636

7663

6636

12874

15927

7371 10614 10614

7039 10136 11825

6033 8688 14479

6697 11251 11251

5748

9733

9221

7964

9657

9733

9221

7964

13795

9733

10758

13273

8760 10220 10220

7617

9733

8517

8887

9733

8517

12696

9733

12167

Room

D

HEATING

Total Performance

Capacity ( Min.

Max.

)

8500 (

12200 (

14300 (

20400 (

27200 (

17000 (

20800 (

22800 (

28200 (

29200 (

24400 (

25800 (

28600 (

6100 14600 )

6100 16000 )

6400 16700 )

6800 26200 )

6800 27200 )

6800 21800 )

7100 25400 )

7100 28200 )

8100 29200 )

8100 29200 )

7800 29000 )

7800 29000 )

8100 29200 )

29200 (

27200 (

29000 (

8100 29200 )

7800 29000 )

8100 29200 )

29200 (

29200 (

8100 29200 )

8100 29200 )

25400 ( 9200 29000 )

27200 ( 10200 29200 )

28200 ( 10900 29200 )

29200 ( 11600 29200 )

28600 ( 11600 29200 )

29000 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

4-room

Operation

IMPORTANT!

(Concurrent operation of 4 indoor units prohibited)

This multi outdoor unit allows up to four indoor units to be connected.

However, all four indoor units must not be operated concurrently.

Otherwise, the air conditioner may not run properly.

Up to three indoor units may be operated concurrently.

The table lists the wall-mounted type of indoor units as representative models.

-2-

Voltage Rating : 208V 60Hz

CMH2472

(Rated cooling capacity at 208V: 23200 BTU/h)

NOTE

7500 : KMHS0772

9000 : KMHS0972

11900 : KMHS1272

17500 : KMHS1872

24200 : KMHS2472

Table 2

Single-room

Operation

2-room

Operation

3-room

Operation

7500

9000

11900

17500

24200

7500 +

7500 +

7500

9000

7500 + 11900

7500 + 17500

7500 + 24200

9000 + 9000

9000 + 11900

9000 + 17500

9000 + 24200

11900 + 11900

11900 + 17500

11900 + 24200

17500 + 17500

7500 +

7500 +

7500 +

7500 +

7500 +

7500 +

7500 +

7500

9000

7500 + 11900

7500 + 17500

9000 + 9000

7500 +

7500 +

9000 +

9000 +

11900

17500

7500 + 11900 + 11900

7500 + 11900 + 17500

9000 + 9000 + 9000

9000 +

9000 +

9000 +

9000 +

11900

17500

9000 + 11900 + 11900

9000 + 11900 + 17500

11900 + 11900 + 11900

11900 + 11900 + 17500

Indoor Unit Combination

Room Room

A B

Room

C

= 7500

=

9000

7500

9000

= 11900 11900

= 17500 17500

=

24200 22400

= 15000 7500

= 16500

= 19400

= 25000

= 31700

7485

7500

9015

7488 11912

6705 15695

5488 17712

= 18000

= 20900

= 26500

9000 9000

8618 11382

7746 15054

= 33200 6306 16894

= 23800 11200 11200

= 29400

=

36100

9387 13813

7660 15540

= 35000 11600 11600

= 22500

= 24000

=

26900

= 32500

7333

6990

6405

5345

7333

6990

6405

5345

7333

8420

10190

12511

= 25500

=

28400

= 34000

= 31300

=

36900

= 27000

=

=

=

29900

35500

32800

= 38400

= 35700

=

41300

6688

6113

5104

5548

4704

7733

6986

5883

6371

5441

7733

6683

8056

7363

6986

7186

7733

6683

8056

9725

6148 11948

8826 8826

7484 11012

7733 7733

9227

5883 11433

8415 8415

10573

7733

9834

Room

D

COOLING

Capacity

Total Performance

( Min. Max.

)

7500 ( 4700 8800 )

9000 ( 4700 - 10900 )

11900 ( 5100 - 12200 )

17500 ( 5400 - 19700 )

22400 ( 5400 - 22400 )

15000 ( 6800 - 17400 )

16500 ( 6800 - 19700 )

19400 ( 6800 - 22800 )

22400 ( 7100 - 23200 )

23200 ( 7100 - 23200 )

18000 ( 6800 - 21400 )

20000 ( 6800 - 23200 )

22800 ( 7100 - 23200 )

23200 ( 7100 - 23200 )

22400 ( 6800 - 23200 )

23200 ( 7100 - 23200 )

23200 ( 7100 - 23200 )

23200 ( 7100 - 23200 )

22000 ( 8500 - 23200 )

22400 ( 9800 - 23200 )

23000 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

22800 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

23200 ( 9800 - 23200 )

Indoor Unit Capacity (BTU/h)

8500

12200

14300

20400

25800

8500 8500

8525 12275

8507 14293

8294 19906

6636 22564

12200 12200

11908 13892

10725 17875

8688 20512

13600 13600

11941 17059

9657 19543

14600 14600

8467

7907

8467 8467

7907 11386

7663

6636

7663

6636

12874

15927

7371 10614 10614

7039 10136 11825

6033 8688 14479

6697 11251 11251

5748

9733

9221

7964

9657

9733

9221

7964

13795

9733

10758

13273

8760 10220 10220

7617

9733

8517

8887

9733

8517

12696

9733

12167

HEATING

Room Room Room Room

A B C D Capacity

Total Performance

( Min.

Max.

)

8500 (

12200 (

14300 (

20400 (

25800 (

17000 (

20800 (

22800 (

28200 (

29200 (

24400 (

25800 (

28600 (

6100 14600 )

6100 16000 )

6400 16700 )

6800 24400 )

6800 25800 )

6800 21800 )

7100 25400 )

7100 28200 )

8100 29200 )

8100 29200 )

7800 28200 )

7800 29000 )

8100 29200 )

29200 (

27200 (

29000 (

8100 29200 )

7800 28600 )

8100 29200 )

29200 (

29200 (

8100 29200 )

8100 29200 )

25400 ( 9200 29000 )

27200 ( 10200 29200 )

28200 ( 10900 29200 )

29200 ( 11600 29200 )

28600 ( 11600 29200 )

29000 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

29200 ( 11600 29200 )

4-room

Operation

IMPORTANT!

(Concurrent operation of 4 indoor units prohibited)

This multi outdoor unit allows up to four indoor units to be connected.

However, all four indoor units must not be operated concurrently.

Otherwise, the air conditioner may not run properly.

Up to three indoor units may be operated concurrently.

The table lists the wall-mounted type of indoor units as representative models.

-3-

Save this Combination Table!

Please be sure to hand over this sheet to the user.

4-Room Outdoor Unit Combination Table

CMH3172

<Combinations of Connectable Indoor Units>

The combinations of the indoor units listed in Table 1 and Table 2 are combinations solely of those units which can be operated concurrently. In addition to the combinations listed in the table, other combinations of indoor units are possible provided that the following conditions are satisfied.

Conditions:

1.

At least two or more indoor units must be connected to the multi outdoor unit. It is not acceptable for only one indoor unit to be connected.

2.

The total rated cooling capacity of the indoor units to be connected must be no more than 200% of the rated cooling capacity of the outdoor unit.

CAUTION

In this case, all the indoor units installed must not be operated concurrently under any circumstances. Otherwise, the air conditioner may not run properly and trouble may occur.

Example: When 4 indoor units are connected at 230V If the following holds true

Rated cooling capacity of CMH3172 outdoor unit: C=30600 (BTU/h)

Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)

Then:

C x 2 (200%) K1 + K2 + .......

30600 x 2 7500 + 7500 + 11900 + 24200

61200 51100

It is therefore possible to connect 4 units with respective capacities of 7500 + 7500 + 11900 + 24200.

However, since this combination is not found in the 4-room operation column of Table 1, operating all these units concurrently may result in trouble. At a time like this, shut down at least one of the 4 indoor units to match one of the combinations found in the 3-room operation column of Table 1.

at 208V If the following holds true

Rated cooling capacity of CMH3172 outdoor unit: C=28600 (BTU/h)

Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)

Then:

C x 2 (200%) K1 + K2 + .......

28600 x 2 7500 + 7500 + 11900 + 24200

57200 51100

It is therefore possible to connect 4 units with respective capacities of 7500 + 7500 + 11900 + 24200.

However, since this combination is not found in the 4-room operation column of Table 2, operating all these units concurrently may result in trouble. At a time like this, shut down at least one of the 4 indoor units to match one of the combinations found in the 3-room operation column of Table 2.

NOTE

Be sure to operate the air conditioning system only when 2 or more indoor units have been installed.

If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction.

Pub. OI-85264180

805

004 © SANYO 2008

< Combinations of operatable indoor units >

Voltage Rating : 230V 60Hz

CMH3172

(Rated cooling capacity at 230V: 30600 BTU/h)

NOTE

7500 : KMHS0772

9000 : KMHS0972

11900 : KMHS1272

17500 : KMHS1872

24200 : KMHS2472

Table 1

Indoor Unit Combination

Single-room

Operation

2-room

Operation

3-room

Operation

4-room

Operation

7500

9000

11900

17500

24200

7500 + 7500

7500 + 9000

7500 + 11900

7500 + 17500

7500 + 24200

9000 + 9000

9000 + 11900

9000 + 17500

9000 + 24200

11900 + 11900

11900 + 17500

11900 + 24200

17500 + 17500

17500 + 24200

7500 + 7500 + 7500

7500 + 7500 + 9000

7500 + 7500 + 11900

7500 + 7500 + 17500

7500 + 7500 + 24200

7500 + 9000 + 9000

7500 + 9000 + 11900

7500 + 9000 + 17500

7500 + 9000 + 24200

7500 + 11900 + 11900

7500 + 11900 + 17500

7500 + 11900 + 24200

7500 + 17500 + 17500

7500 + 17500 + 24200

9000 + 9000 + 9000

9000 + 9000 + 11900

9000 + 9000 + 17500

9000 + 9000 + 24200

9000 + 11900 + 11900

9000 + 11900 + 17500

9000 + 11900 + 24200

9000 + 17500 + 17500

11900 + 11900 + 11900

11900 + 11900 + 17500

11900 + 11900 + 24200

11900 + 17500 + 17500

7500 + 7500 + 7500 + 7500

7500 + 7500 + 7500 + 9000

7500 + 7500 + 7500 + 11900

7500 + 7500 + 7500 + 17500

7500 + 7500 + 7500 + 24200

7500 + 7500 + 9000 + 9000

7500 + 7500 + 9000 + 11900

7500 + 7500 + 9000 + 17500

7500 + 7500 + 9000 + 24200

7500 + 7500 + 11900 + 11900

7500 + 7500 + 11900 + 17500

7500 + 7500 + 17500 + 17500

7500 + 9000 + 9000 + 9000

7500 + 9000 + 9000 + 11900

7500 + 9000 + 9000 + 17500

7500 + 9000 + 11900 + 11900

7500 + 9000 + 11900 + 17500

7500 + 11900 + 11900 + 11900

7500 + 11900 + 11900 + 17500

9000 + 9000 + 9000 + 9000

9000 + 9000 + 9000 + 11900

9000 + 9000 + 9000 + 17500

9000 + 9000 + 11900 + 11900

9000 + 9000 + 11900 + 17500

9000 + 11900 + 11900 + 11900

11900 + 11900 + 11900 + 11900

Indoor Unit Capacity (BTU/h)

COOLING

Room Room Room Room

A B C D

= 34400

= 40000

= 46700

= 33000

= 35900

= 41500

= 48200

= 38800

= 44400

= 50000

= 34500

= 37400

= 43000

= 40300

= 45900

= 43200

= 48800

= 36000

= 38900

= 44500

= 41800

= 47400

= 44700

= 47600

= 29900

= 35500

= 42200

= 32800

= 38400

= 45100

= 44000

= 35700

= 41300

= 48000

= 46900

= 30000

= 31500

= 7500 7500

= 9000 9000

= 11900 11900

= 17500 17500

= 24200 24200

= 15000

= 16500

=

=

=

19400

25000

31700

7500

7500

7500

9000

7500 11900

7320 17080

6625 21375

= 18000

= 20900

= 26500

9000 9000

8957 11843

8626 16774

= 33200 7861 21139

= 23800 11900 11900

= 29400 10848 15952

= 36100 9625 19575

= 35000 14500 14500

= 41700 12296 17004

= 22500

=

=

=

24000

26900

32500

7467

7500

7082

6600

7467 7467

7500 9000

7082 11236

6600 15400

= 39200

= 25500

= 28400

5587

7294

6972

5587

8753

8366

18027

8753

11062

= 34000

= 40700

= 31300

= 36900

= 43600

= 42500

= 49200

= 27000

6309

5381

6613

5935

5023

7571

6457

10493

9417

7970

14721

17362

10493

13848

16207

5153 12024 12024

4451 10386 14363

8533 8533 8533

8187

7352

6185

7848 10376 10376

6844

5827

5973

9267

8414

8187 10825

7352 14296

6185

9049

7705

11614

9267

8414

16630

13307

15668

11614

9267

12373

6409

6058

5530

4761

5915

5169

4590

6217

7239 7239 14722

7409 10896 10896

6800

6667

6235

5738

4914

6800

6667

6235

5738

4914

6800

6667

6800

8000

6235 9894

5738 13388

4914 15857

6409

6058

5530

4761

5915

5169

7691

7270

7691

9613

6636 12904

5714 15363

9385 9385

8201 12061

4590 10710 10710

7461 7461 7461

6136

5337

5695

5000

5313

4703

7650

7080

6189

6589

5810

6161

7650

7364

6405

6834

6000

8429

7462

7650

7080

6189

6589

5810

8146

7650

7364

9036

8429

7462

7650

7080

9736

6405 12453

9036

7933 11667

8429

10973

7650

9361

6189 12034

8711 8711

7682 11297

8146

7650

8146

7650

Total Performance

Capacity ( Min. Max.

)

Room Room

A B

Room

C D

HEATING

Room

7500 ( 4000 8800 ) 8500

9000 ( 4400 - 10900 ) 12200

11900 ( 4700 - 12200 ) 14300

17500 ( 5100 - 19700 ) 20400

24200 ( 5400 - 25200 ) 29000

15000 ( 4400 - 17400 )

16500 ( 5100 - 19700 )

8500 8500

8541 12259

19400 ( 5800 - 22800 )

24400 ( 7500 - 26200 )

28000 ( 7800 - 30000 )

8500 14300

8529 20471

6800 23200

18000 ( 5800 - 22000 ) 12200 12200

20800 ( 6400 - 25200 ) 11878 13922

25400 ( 7800 - 29000 ) 11002 18398

29000 ( 7800 - 30000 ) 9061 21539

23800 ( 7500 - 28600 ) 13600 13600

26800 ( 8800 - 30000 ) 12281 17519

29200 ( 8800 - 30000 ) 10238 20762

29000 ( 8800 - 30000 ) 15300 15300

29300 ( 9200 - 30000 ) 13215 18785

22400 ( 6800 - 26200 )

24000

25400

28600

(

(

(

7500 - 26600

8100 - 26800

9200 - 30600

)

)

)

8467

8442

7930

6818

8467 8467

8442 12116

7930 13341

6818 16364

29200 ( 9800 - 30600 )

24800 ( 7800 - 27200 )

26400 ( 8800 - 27600 )

5802

7596

7237

5802

10902

10387

19796

10902

12175

28600 ( 9800 - 30600 )

29200 ( 9800 - 30600 )

27600 ( 9200 - 28600 )

29200 ( 9800 - 30600 )

29200 ( 9800 - 30600 )

6328

5473

9083 15188

7855 18672

6873 11563 11563

6100 10262 14639

5251 8834 17915

29200 ( 9800 - 30600 )

29200 ( 9800 - 30600 )

5517

4698

13241

11275

13241

16028

25600 ( 8500 - 27200 ) 10000 10000 10000

27200 ( 9200 - 28200 )

29000 ( 9800 - 30600 )

29000 ( 9800 - 30600 )

28600 ( 9200 - 29200 )

29200 ( 9800 - 30600 )

29200 ( 9800 - 30600 )

9520

8496

7311

7034

9520 11159

8496 14207

7311

8245

17378

9150 10725 10725

8220 9635 13745

16721

29200 ( 9800 - 30600 ) 7366 12317 12317

27800 ( 9800 - 29000 ) 10333 10333 10333

29200 ( 9800 - 30600 ) 9280 9280 13239

29200 ( 9800 - 30600 )

29200 ( 9800 - 30600 )

27200 ( 9800 - 28200 )

28000 ( 9800 - 28200 )

28600

30600

30600

(

(

(

9800 - 28600

9800 - 30600

9800 - 30600

)

)

)

28200 ( 9800 - 28200 )

29000 ( 9800 - 29000 )

30600 ( 9800 - 30600 )

30600 ( 9800 - 30600 )

30600 ( 9800 - 30600 )

30600

30600

28600

(

(

(

9800 - 30600

9800 - 30600

9800 - 28600

)

)

)

30600 ( 9800 - 30600 )

30600 ( 9800 - 30600 )

30600 ( 9800 - 30600 )

30600

30600

30600

(

(

(

9800 - 30600

9800 - 30600

9800 - 30600

)

)

)

30600 ( 9800 - 30600 )

30600 ( 9800 - 30600 )

30600 ( 9800 - 30600 )

7944

8305

7400

6764

6492

5815

4991

6324

6097

5484

4674

5816

5261

4706

5880

5691

5103

5517

4910

5292

4730

8000

7670

6849

7944

11848

7400

6764

6492

5815

4991

6324

6097

5484

4674

5816

5261

16111

11848

7400

6764

6492 10923

5815 13956

4991 17028

9076

8903

9076

8750 10257

7871 13161

6708 15945

9784

8168

7325

9282

8260 11783

7958

7400

9708

9784

8851 12627

4706 11294 11294

8440

8168

7325

7919

7047

8903

7958

8000

7670

6849

8440

8000

7670

8440

9574

12248

9282

8903

11353

8000

8990

6849 11453

30600 ( 9800 - 30600 )

30600 ( 9800 - 30600 )

30600 ( 9800 - 30600 )

30600 ( 9800 - 30600 )

7366

6606

7085

8000

7366

6606

8305

8000

8634 8634

7743 11046

8305

8000

8305

8000

Capacity

Total Performance

( Min.

Max.

)

8500 ( 6100 - 14600 )

12200 ( 6100 - 16000 )

14300 ( 6400 - 17400 )

20400 ( 6800 - 26600 )

29000 ( 6800 - 30000 )

17000 ( 6800 - 21800 )

20800 ( 7100 - 25400 )

22800 ( 7800 - 28200 )

29000 ( 10200 - 32000 )

30000 ( 10200 - 32000 )

24400 ( 8100 - 29000 )

25800 ( 8800 - 29000 )

29400 ( 11200 - 32000 )

30600 ( 11200 - 32000 )

27200 ( 9800 - 29000 )

29800 ( 11600 - 32000 )

31000 ( 11600 - 32000 )

30600 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

25400 ( 9200 - 30600 )

29000 ( 10200 - 31200 )

29200 ( 10900 - 32000 )

30000 ( 11600 - 32000 )

31400 ( 11600 - 32000 )

29400 ( 11200 - 31600 )

29800 ( 11600 - 32000 )

30600 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

30000 ( 11600 - 32000 )

31000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

30000 ( 11600 - 32000 )

30200 ( 11600 - 32000 )

31200 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

30600 ( 11600 - 32000 )

31600 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

31000 ( 11600 - 32000 )

31800 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

29600 ( 11600 - 32000 )

30000 ( 11600 - 32000 )

30400 ( 11600 - 32000 )

31400 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

30800 ( 11600 - 32000 )

31200 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

31200 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

31200 ( 11600 - 32000 )

31600 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

The table lists the wall-mounted type of indoor units as representative models.

-2-

Voltage Rating : 208V 60Hz

CMH3172

(Rated cooling capacity at 208V: 28600 BTU/h)

NOTE

7500 : KMHS0772

9000 : KMHS0972

11900 : KMHS1272

17500 : KMHS1872

24200 : KMHS2472

Table 2

Indoor Unit Combination

Single-room

Operation

2-room

Operation

3-room

Operation

4-room

Operation

7500

9000

11900

17500

24200

7500 + 7500

7500 + 9000

7500 + 11900

7500 + 17500

7500 + 24200

9000 + 9000

9000 + 11900

9000 + 17500

9000 + 24200

11900 + 11900

11900 + 17500

11900 + 24200

17500 + 17500

17500 + 24200

7500 + 7500 + 7500

7500 + 7500 + 9000

7500 + 7500 + 11900

7500 + 7500 + 17500

7500 + 7500 + 24200

7500 + 9000 + 9000

7500 + 9000 + 11900

7500 + 9000 + 17500

7500 + 9000 + 24200

7500 + 11900 + 11900

7500 + 11900 + 17500

7500 + 11900 + 24200

7500 + 17500 + 17500

7500 + 17500 + 24200

9000 + 9000 + 9000

9000 + 9000 + 11900

9000 + 9000 + 17500

9000 + 9000 + 24200

9000 + 11900 + 11900

9000 + 11900 + 17500

9000 + 11900 + 24200

9000 + 17500 + 17500

11900 + 11900 + 11900

11900 + 11900 + 17500

11900 + 11900 + 24200

11900 + 17500 + 17500

7500 + 7500 + 7500 + 7500

7500 + 7500 + 7500 + 9000

7500 + 7500 + 7500 + 11900

7500 + 7500 + 7500 + 17500

7500 + 7500 + 7500 + 24200

7500 + 7500 + 9000 + 9000

7500 + 7500 + 9000 + 11900

7500 + 7500 + 9000 + 17500

7500 + 7500 + 9000 + 24200

7500 + 7500 + 11900 + 11900

7500 + 7500 + 11900 + 17500

7500 + 7500 + 17500 + 17500

7500 + 9000 + 9000 + 9000

7500 + 9000 + 9000 + 11900

7500 + 9000 + 9000 + 17500

7500 + 9000 + 11900 + 11900

7500 + 9000 + 11900 + 17500

7500 + 11900 + 11900 + 11900

7500 + 11900 + 11900 + 17500

9000 + 9000 + 9000 + 9000

9000 + 9000 + 9000 + 11900

9000 + 9000 + 9000 + 17500

9000 + 9000 + 11900 + 11900

9000 + 9000 + 11900 + 17500

9000 + 11900 + 11900 + 11900

11900 + 11900 + 11900 + 11900

Indoor Unit Capacity (BTU/h)

COOLING

Room Room Room Room

A B C D

= 34400

= 40000

= 46700

= 33000

= 35900

= 41500

= 48200

= 38800

= 44400

= 50000

= 34500

= 37400

= 43000

= 40300

= 45900

= 43200

= 48800

= 36000

= 38900

= 44500

= 41800

= 47400

= 44700

= 47600

= 29900

= 35500

= 42200

= 32800

= 38400

= 45100

= 44000

= 35700

= 41300

= 48000

= 46900

= 30000

= 31500

= 7500 7500

= 9000 9000

= 11900 11900

= 17500 17500

= 24200 24200

= 15000

= 16500

= 19400

= 25000

= 31700

7500

7500

7500

9000

7500 11900

7320 17080

6625 21375

= 18000

= 20900

= 26500

9000 9000

8957 11843

8626 16774

= 33200 7373 19827

= 23800 11900 11900

= 29400 10848 15952

= 36100 9098 18502

= 35000 13600 13600

= 41700 11583 16017

= 22500

= 24000

= 26900

= 32500

7467

7500

6747

6185

7467 7467

7500 9000

6747 10706

6185 14431

= 39200

= 25500

= 28400

5281

7118

6444

5281

8541

7732

17039

8541

10224

= 34000

= 40700

= 31300

= 36900

= 43600

= 42500

= 49200

= 27000

5912

5086

5799

5610

4748

8267

7094 13794

6103 16411

9201

8267

9201

8901 13089

7533 15319

4871 11365 11365

4207 9817 13576

8267

7284

6439

5886

6805

6469

5508

7284

6439

5886

8998

7282

9631

12521

15827

8998

8553 12578

14810

5645 10977 10977

8467 8467 8467

7953 7953 11695

5864

5557

5169

4450

5528

4831

4290

5696

6843 6843 13915

7003 10299 10299

6300

6048

5625

5363

4593

6300

6048

5625

5363

4593

6300

6048

6300

7257

5625 8925

5363 12513

4593 14821

5864

5557

5169

4450

5528

4831

7036

6669

7036

8817

6202 12060

5340 14359

8772 8772

7665 11273

4290 10010 10010

6835 6835 6835

5735

4988

5323

4673

4965

4395

7150

6617

5784

6158

5430

5758

7150

6882

5986

6387

5608

7878

6974

7150

6617

5784

6158

5430

7614

7150

6882

8445

7878

6974

7150

6617

9100

5986 11640

8445

7415 10904

7878

10256

7150

8749

5784 11247

8142 8142

7180 10559

7614

7150

7614

7150

Total Performance

Capacity ( Min. Max.

)

Room Room

A B

Room

C D

HEATING

Room

7500 ( 4000 8800 ) 8500

9000 ( 4400 - 10900 ) 12200

11900 ( 4700 - 12200 ) 14300

17500 ( 5100 - 19700 ) 20400

24200 ( 5400 - 24800 ) 29000

15000 ( 4400 - 17400 )

16500 ( 5100 - 19700 )

8500 8500

8541 12259

19400 ( 5800 - 22800 )

24400 ( 7500 - 26200 )

28000 ( 7800 - 27600 )

8500 14300

8529 20471

6800 23200

18000 ( 5800 - 22000 ) 12200 12200

20800 ( 6400 - 25200 ) 11878 13922

25400 ( 7800 - 27600 ) 11002 18398

27200 ( 7800 - 27600 ) 9061 21539

23800 ( 7500 - 27600 ) 13600 13600

26800 ( 8800 - 27600 ) 12281 17519

27600 ( 8800 - 27600 ) 10238 20762

27200 ( 8800 - 27600 ) 15300 15300

27600 ( 9200 - 27600 ) 13215 18785

22400 ( 6800 - 24800 ) 8467 8467 8467

24000 ( 7500 - 25200 )

24200 ( 8100 - 25400 )

26800 ( 9200 - 27600 )

27600 ( 9800 - 27600 )

24200 ( 7800 - 25400 )

24400 ( 8800 - 25800 )

8442

7930

6818

8442 12116

7930 13341

6818 16364

5802 5802 19796

7596 10902 10902

7237 10387 12175

26800 ( 9800 - 27600 )

27600 ( 9800 - 27600 )

24200 ( 9200 - 27600 )

27600 ( 9800 - 27600 )

27600 ( 9800 - 27600 )

6328

5473

9083 15188

7855 18672

6873 11563 11563

6100 10262 14639

5251 8834 17915

27600 ( 9800 - 27600 )

27600 ( 9800 - 27600 )

5517

4698

13241

11275

13241

16028

24800 ( 8500 - 26200 ) 10000 10000 10000

24200 ( 9200 - 25400 )

25400 ( 9800 - 27600 )

27600 ( 9800 - 27600 )

24800 ( 9200 - 26200 )

27600 ( 9800 - 27600 )

27600 ( 9800 - 27600 )

9520

8496

7311

9520 11159

8496 14207

7311 17378

9150 10725 10725

8220 9635 13745

7034 8245 16721

27600 ( 9800 - 27600 ) 7366 12317 12317

25400 ( 9800 - 27600 ) 10333 10333 10333

27600 ( 9800 - 27600 ) 9280 9280 13239

27600 ( 9800 - 27600 )

27600 ( 9800 - 27600 )

25200 ( 9800 - 25200 )

25400 ( 9800 - 25400 )

25800

28600

28600

28600

28600

26200

28600

28600

28600

(

(

(

(

(

(

(

(

(

9800 - 25800

9800 - 28600

9800 - 28600

9800 - 28600

9800 - 28600

9800 - 26200

9800 - 28600

9800 - 28600

9800 - 28600

)

)

)

25800 ( 9800 - 25800 )

26600 ( 9800 - 26600 )

28600 ( 9800 - 28600 )

28600 ( 9800 - 28600 )

28600 ( 9800 - 28600 )

)

)

)

28600 ( 9800 - 28600 )

28600 ( 9800 - 28600 )

28600 ( 9800 - 28600 )

)

)

)

28600 ( 9800 - 28600 )

28600 ( 9800 - 28600 )

28600 ( 9800 - 28600 )

7944

8305

7400

6764

6492

5815

4991

6324

6097

5484

4674

5816

5261

4706

5880

5691

5103

5517

4910

5292

4730

8000

7670

6849

7944

11848

7400

6764

6492 6492 10923

5815 5815 13956

4991 4991 17028

6324

6097

5484

4674

5816

9076

8750

7871

6708

9784

8903 8903

9076

10257

13161

15945

9784

5261 8851 12627

4706 11294 11294

8440

8168

7325

7919

7047 8260 11783

7958

16111

11848

7400

6764

8440

8168

7325

9282

7958

8000 8000

7670 7670

7400

9708

8440

9574

12248

9282

8903

11353

8000

8990

6849 6849 11453

28600 ( 9800 - 28600 )

28600 ( 9800 - 28600 )

28600 ( 9800 - 28600 )

28600 ( 9800 - 28600 )

7366

6606

7085

8000

7366 8634 8634

6606 7743 11046

8305 8305

8000 8000

8305

8000

Capacity

Total Performance

( Min.

Max.

)

8500 ( 6100 - 14600 )

12200 ( 6100 - 16000 )

14300 ( 6400 - 17400 )

20400 ( 6800 - 26600 )

29000 ( 6800 - 30000 )

17000 ( 6800 - 21800 )

20800 ( 7100 - 25400 )

22800 ( 7800 - 28200 )

29000 ( 10200 - 32000 )

30000 ( 10200 - 32000 )

24400 ( 8100 - 29000 )

25800 ( 8800 - 29000 )

29400 ( 11200 - 32000 )

30600 ( 11200 - 32000 )

27200 ( 9800 - 29000 )

29800 ( 11600 - 32000 )

31000 ( 11600 - 32000 )

30600 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

25400 ( 9200 - 30600 )

29000 ( 10200 - 31200 )

29200 ( 10900 - 32000 )

30000 ( 11600 - 32000 )

31400 ( 11600 - 32000 )

29400 ( 11200 - 31600 )

29800 ( 11600 - 32000 )

30600 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

30000 ( 11600 - 32000 )

31000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

30000 ( 11600 - 32000 )

30200 ( 11600 - 32000 )

31200 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

30600 ( 11600 - 32000 )

31600 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

31000 ( 11600 - 32000 )

31800 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

29600 ( 11600 - 32000 )

30000 ( 11600 - 32000 )

30400 ( 11600 - 32000 )

31400 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

30800 ( 11600 - 32000 )

31200 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

31200 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

31200 ( 11600 - 32000 )

31600 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

32000 ( 11600 - 32000 )

The table lists the wall-mounted type of indoor units as representative models.

-3-

SANYO Commercial Solutions

A Division of SANYO North America Corporation

Cornerstone Business Park, 1062 Thorndale Avenue,

Bensenville, IL 60106, U.S.A.

Sanyo Canada Inc.

1-300 Applewood Crescent, Concord, Ontario L4K 5C7, CANADA

Jan. / 2008 (T)

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