Sanyo CMH1972A, CMH3172A, CMH2472A Technical & Service Manual

Notice

CORRECTION
SERVICE FLASH

PRODUCTION CHANGE
ADDED INFORMATION

REFERENCE NO. SM700855-02

FILE NO.

Page No.

of the Manual

Contents

The following unit specification has been corrected.
Number of Operatable Indoor Units : 3 4

Reason

for change

Please add this notice to the TECHNICAL & SERVICE MANUAL listed below.

The reason for change

< Reference No. >

Current

SM700855-01

A : Correction B : Quality reliability C : Standardization
D : Design change E : Addition of parts F : New information

Category :

Model :
Destination :
Serial No. :

North America

Issue Number : 2

DC INVERTER MULTI-SYSTEM AIR CONDITIONER
CMH1972A

CMH2472A
CMH3172A

Date : April, 2010

New

SM700855-02

10 and 11 A

Product Code No.

1 852 356 13
1 852 356 09
1 852 356 10

Capacity at 230V

19,100 BTU/h
23,200 BTU/h
30,600 BTU/h

Outdoor Model No.

CMH1972A
CMH2472A
CMH3172A

For Parts or Service Assistance please contact your local Sanyo HVAC Contractor or Distributor

United States: SCS, HVAC Solutions

Web: www.SanyoHVAC.com

Parts: [e-mail]

Service: [e-mail]

Canada: Sanyo Canada Inc.
Web: www.SanyoHVAC.com

Parts/Service: [e-mail]

4/10 Printed in Japan

TECHNICAL & SERVICE MANUAL

OUTDOOR UNIT : CMH1972A

FILE NO.

CMH2472A
CMH3172A

Destination: North America

DC INVERTER MULTI-SYSTEM AIR CONDITIONER

Product Code No.

1 852 356 13
1 852 356 09
1 852 356 10

< Applicable Indoor Units >

Wall mounted type
KMHS0772
KMHS0972
KMHS1272
KMHS1872
KMHS2472

Semi-concealed type
XMHS0972 & PNR-XS1872
XMHS1272 & PNR-XS1872
XHS1872 & PNR-XS1872

CMH1972A

Capacity at 230V

19,100 BTU/h
23,200 BTU/h
30,600 BTU/h

Outdoor Model No.

CMH1972A
CMH2472A
CMH3172A

CMH2472A

CMH3172A

NOTE

For details about the combination, refer to
"Unit Combination Table" in the Appendix
of this manual.

IMPORTANT

These air conditioners employ new
refrigerant R410A.

Pay special attention when
servicing the unit.

REFERENCE NO.

SM700855-02

SAFETY PRECAUTIONS

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

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

Items in particular which may cause death or serious injury to the service personnel if the work is not performed correctly, 
are included in the " Warning" table.
However, even precautionary items identified as " Caution" also have the potential for serious consequences
if not performed correctly.
Important safety precautions are described for all items in both categories. Be sure to carefully follow all of them.

• Symbol Indication
: This symbol indicates items to which we need to pay attention.

In this triangle, a definite precautionary item is described.

: This symbol indicates the item to be prohibited.

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

: This symbol indicates the items requiring special attention or instruction.

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

• After doing repair work, perform a test run to confirm that there are no abnormalities.

At the same time, explain the precautions in use to the user.

Warning

Before performing an overhaul, disconnect the power plug or power cable from the unit.
Performing the work with the power supplied to the unit, may cause an electric shock.

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

Prohibit

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

Do not perform repair work on the electric sections with wet hands.
Doing so may cause an electric shock.

Do not start or stop the air conditioner by means of connecting or disconnecting the power plug.
Doing so may cause an electric shock or fire.

When conducting repair work only use components included in the parts list for the corresponding unit and perform
the work with the appropriate tools.
Incorrect or poor repair work may cause an electric shock or fire.

Never modify the unit.
Doing so may cause an electric shock or fire.

Perform all electric work according to local applicable regulations related to electrical equipment or interior wiring
regulation and make sure to use the exclusive circuit.
Insufficient capacity to the electric circuit or defective arrangement results may cause an electric shock or fire.

Make sure to replace any power cable or lead wire showing any signs of scratch or deterioration.
Failure to do so may cause an electric shock, overheating or fire.

Make sure that there is no dust on or slack in the power plug and insert fully into the socket.
Dust or incomplete connections may cause an electric shock or fire.

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

Prohibit

Prohibit

Prohibit

Prohibit

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

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

2

Warning

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

If refrigerant gas leaks during the work, ventilate the room.
If refrigerant gas catches fire, harmful gas may be generated.

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

When the welded section of the compressor intake or discharge pipe is to be disconnected, perform it in
a well-ventilated place after sufficiently recovering the refrigerant gas.
Any residue gas may jet out refrigerant or refrigerating machine oil, which may cause an injury.

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

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

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

Caution

Prohibit

Prohibit

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

For the repair work in places with high humidity or moisture, make sure to ground the unit.
Failure to do so may cause an electric shock.

Confirm that the component attachment position, wiring condition, soldering condition and connector connection
are normal.
If not, it may cause overheating or fire.

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

Perform welding work in a place with good ventilation.
If the work is performed in a poorly ventilated area, it might cause a lack of oxygen.

If the installation plate or attachment frame has deteriorated due to corrosion, etc., replace it.
Failure to do so may cause an injury due to the unit falling.

When the cleaning is to be performed, make sure to turn off the power and pull out the plug.
Touching the fan that is rotating at high speed may result in an injury.

When the indoor unit is to be removed, do not place it on an incline.
Doing so may cause wet furniture because water left inside may trickle down.

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

Prohibit

Prohibit

Prohibit

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

After repairs, make sure to check the drainage of the indoor unit.
Inappropriate drainage may cause wet furniture and floors due to water leakage.

3

Table of Contents

2

4

6

7

8
14
17

18

21

24
47
53

59

62
68

71
72
73
74
78

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Page

SAFETY PRECAUTIONS

TABLE OF CONTENTS

APPLICABLE INDOOR UNITS

1. OPERATING RANGE

2. SPECIFICATIONS

2-1. Unit Specifications
2-2. Major Component Specifications
2-3. Other Component Specifications

3. DIMENSIONAL DATA

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

5. PERFORMANCE DATA

5-1. Temperature Charts
5-2. Cooling Capacity
5-3. Heating Capacity

6. ELECTRICAL DATA

6-1. Electric Wiring Diagrams

7. FUNCTIONS

7-1. Explanation of Functions
7-2. Protective Functions

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

4

79
80
81
81
82
84
85
85

A-1

A-2

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Page

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
9-5. In Case of Compressor Malfunction
9-6. In Case Refrigerant is Leaking
9-7. Charging Additional Refrigerant
9-8. Retro-Fitting Existing Systems

APPENDIX A INSTALLATION INSTRUCTIONS

APPENDIX B UNIT COMBINATION TABLES

5

APPLICABLE INDOOR UNITS

Wall Mounted Type

Indoor Unit

KMHS0772

Multi-Outdoor Unit

KMHS0972 KMHS1272 KMHS1872 KMHS2472

3-Room

4-Room

4-Room

CMH1972A

CMH2472A

CMH3172A

Semi-Concealed Type

Indoor Unit

Multi-Outdoor Unit

3-Room

4-Room

4-Room

CMH1972A

CMH2472A

CMH3172A

YES

YES

YES

XMHS0972

&

PNR-XS1872

YES

YES

YES

YES

YES

YES

XMHS1272

&

PNR-XS1872

YES

YES

YES

YES

YES

YES

XHS1872

&

PNR-XS1872

YES

YES

YES

YES

YES

YES

NO

YES

YES

6

1. OPERATING RANGE

Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.

Cooling

Heating

Maximum
Minimum
Maximum
Minimum

95 °F D.B. / 71 °F W.B.
67 °F D.B. / 57 °F W.B.
80 °F D.B. / 67 °F W.B.

_

D.B. / _ W.B.

115 °F D.B.
14 °F D.B.
75 °F D.B. / 65 °F W.B.
0 °F D.B.

7

2. SPECIFICATIONS

2-1. Unit Specifications

Outdoor Unit CMH1972A
Indoor Unit KMHS0972

× 3

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 : CMH1972A 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.

< 230V >

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

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

( 11,600 to 24,800 )
( 3.40 to 7.30 )

6.7

1,500

7.7

1,735

19,100

5.60

24,800

7.30

( 9,800 to 19,100 )
( 2.90 to 5.60 )

Shipping Volume

Cooling Heating

16,300

2,800

Net
Shipping

Package Dimensions

Weight

Height × Width × Depth

Height × Width × Depth

Ibs (kg)
Ibs (kg)

cu.ft (m

3

)

(mm)

inch

(mm)

3-Room Multi Outdoor Unit

Outdoor Unit

inch

-

-

187 to 253

Dimensions & Weight

Refrigerant Tubing Connections

Unit Dimensions

Electrical Rating

Sensible Capacity
Latent Capacity

WPower Input

V
A

Available Voltage Range
Running Amperes

Operation Sound (High) Cool / Heat

Narrow tube
Wide tube

Refrigerant inch (mm)
Tube Diameter inch (mm)

143.3

152.1

12.71

(65.0)
(69.0)
(0.36)

33-27/32 × 40-5/8 × 16-1/4

(860 × 1,032 × 413)

(740 × 900 × 320)

Outdoor Unit

29-1/8 × 35-7/16 × 12-19/32

1/4 (6.35) × 3
3/8 (9.52) × 3

ft (m)

dB-A

Max. allowable tubing length per unit

Flare Type

82 (25)

R410A / 6.17 (2,800)

Electric Expansion Valve

DC Twin Rotary (Inverter)

Fan Speeds Auto (Hi, Me, Lo)

Control Microprocessor

Features

HSPF
Compressor Locked Rotor Amperes

BTU/Wh

50 / 52

BTU/h

Performance

- 8.8

%Power Factor 98 98

A 14.5

Type

BTU/h

kW

Total Capacity

BTU/h

SEER BTU/Wh 16.4 -

3Number of Connectable Indoor Units
3Number of Operatable Indoor Units

230V Single-Phase 60HzVoltage Rating

1,707 (2,900) 1,707 (2,900)Air Circulation (High) ft3/min (m3/h)

COP W/W - 4.2

EER BTU/h/W 12.7 -

Fuse or Circuit Breaker Capacity A20

8

Outdoor Unit CMH1972A
Indoor Unit KMHS0972

Type

Total Capacity

Sensible Capacity
Latent Capacity

Performance

Available Voltage Range
Running Amperes

EER BTU/h/W 12.7 ­COP W/W - 4.2
SEER BTU/Wh 16.4 ­HSPF

Electrical Rating

Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity A20

Control Microprocessor
Fan Speeds Auto (Hi, Me, Lo)
Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control
Operation Sound (High) Cool / Heat

Features

Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant inch (mm)
Tube Diameter inch (mm)

Unit Dimensions

Height × Width × Depth

Package Dimensions

Height × Width × Depth

Weight

Dimensions & Weight

Shipping Volume

× 3

Narrow tube
Wide tube

Net
Shipping

3-Room Multi Outdoor Unit

3Number of Connectable Indoor Units
3Number of Operatable Indoor Units

208V Single-Phase 60HzVoltage Rating

Cooling Heating

BTU/h

BTU/h
BTU/h

BTU/Wh

dB-A

ft (m)

inch

(mm)

inch

(mm)
Ibs (kg)
Ibs (kg)

cu.ft (m

19,100

kW

V

A
WPower Input
%Power Factor 98 98

A 14.5

3

)

( 9,800 to 19,100 )

5.60

( 2.90 to 5.60 )

1,707 (2,900) 1,707 (2,900)Air Circulation (High) ft3/min (m3/h)

16,300

2,800

187 to 253

7.4

1,500

- 8.8

Outdoor Unit

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

Outdoor Unit

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

(69.0)

12.71

(0.36)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

24,800

7.30

< 208V >

( 11,600 to 24,800 )
( 3.40 to 7.30 )

-

-

8.5

1,735

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 : CMH1972A 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 CMH2472A
Indoor Unit KMHS0972

Type

Total Capacity

Sensible Capacity
Latent Capacity

Performance

Available Voltage Range
Running Amperes

EER BTU/h/W 11.4 ­COP W/W - 3.8
SEER BTU/Wh 16.5 ­HSPF

Electrical Rating

Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity A20

Control Microprocessor
Fan Speeds Auto (Hi, Me, Lo)
Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control
Operation Sound (High) Cool / Heat

Features

Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant inch (mm)
Tube Diameter inch (mm)

Unit Dimensions

Height × Width × Depth

Package Dimensions

Height × Width × Depth

Weight

Dimensions & Weight

Shipping Volume

× 3

Narrow tube
Wide tube

Net
Shipping

4-Room Multi Outdoor Unit

4Number of Connectable Indoor Units
4Number of Operatable Indoor Units

230V Single-Phase 60HzVoltage Rating

Cooling Heating

BTU/h

BTU/h
BTU/h

BTU/Wh

dB-A

ft (m)

inch

(mm)

inch

(mm)
Ibs (kg)
Ibs (kg)

cu.ft (m

23,200

kW

V

A
WPower Input
%Power Factor 98 98

A 14.5

3

)

( 9,800 to 23,200 )

6.80

( 2.90 to 6.80 )

1,707 (2,900) 1,707 (2,900)Air Circulation (High) ft3/min (m3/h)

19,600

3,600

187 to 253

9.0

2,040

- 8.4

Outdoor Unit

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

Outdoor Unit

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

(69.0)

12.71

(0.36)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

29,200

8.60

< 230V >

( 11,600 to 29,200 )
( 3.40 to 8.60 )

-

-

10.1

2,270

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 : CMH2472A 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 CMH2472A
Indoor Unit KMHS0972

Type

Total Capacity

Sensible Capacity
Latent Capacity

Performance

Available Voltage Range
Running Amperes

EER BTU/h/W 11.4 ­COP W/W - 3.8
SEER BTU/Wh 16.5 ­HSPF

Electrical Rating

Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity A20

Control Microprocessor
Fan Speeds Auto (Hi, Me, Lo)
Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control
Operation Sound (High) Cool / Heat

Features

Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant inch (mm)
Tube Diameter inch (mm)

Unit Dimensions

Height × Width × Depth

Package Dimensions

Height × Width × Depth

Weight

Dimensions & Weight

Shipping Volume

× 3

Narrow tube
Wide tube

Net
Shipping

4-Room Multi Outdoor Unit

4Number of Connectable Indoor Units
4Number of Operatable Indoor Units

208V Single-Phase 60HzVoltage Rating

Cooling Heating

BTU/h

BTU/h
BTU/h

BTU/Wh

dB-A

ft (m)

inch

(mm)

inch

(mm)
Ibs (kg)
Ibs (kg)

cu.ft (m

23,200

kW

V

A
WPower Input
%Power Factor 98 98

A 14.5

3

)

( 9,800 to 23,200 )

6.80

( 2.90 to 6.80 )

1,707 (2,900) 1,707 (2,900)Air Circulation (High) ft3/min (m3/h)

19,600

3,600

187 to 253

10.0

2,040

- 8.4

Outdoor Unit

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

Outdoor Unit

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

(69.0)

12.71

(0.36)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

29,200

8.60

< 208V >

( 11,600 to 29,200 )
( 2.90 to 8.60 )

-

-

11.1

2,270

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 : CMH2472A 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

Outdoor Unit CMH3172A
Indoor Unit KMHS0972

Type

Total Capacity

Sensible Capacity
Latent Capacity

Performance

Available Voltage Range
Running Amperes

EER BTU/h/W 10.9 ­COP W/W - 4.0
SEER BTU/Wh 17.2 ­HSPF

Electrical Rating

Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity A20

Control Microprocessor
Fan Speeds Auto (Hi, Me, Lo)
Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control
Operation Sound (High) Cool / Heat

Features

Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant inch (mm)
Tube Diameter inch (mm)

Unit Dimensions

Height × Width × Depth

Package Dimensions

Height × Width × Depth

Weight

Dimensions & Weight

Shipping Volume

× 4

Narrow tube
Wide tube

Net
Shipping

4-Room Multi Outdoor Unit

4Number of Connectable Indoor Units
4Number of Operatable Indoor Units

230V Single-Phase 60HzVoltage Rating

Cooling Heating

BTU/h

BTU/h
BTU/h

BTU/Wh

dB-A

ft (m)

inch

(mm)

inch

(mm)
Ibs (kg)
Ibs (kg)

cu.ft (m

30,600

kW

V

A
WPower Input
%Power Factor 99 99

A 17.0

3

)

( 9,800 to 30,600 )

9.00

( 2.90 to 9.00 )

1,942 (3,300) 1,807 (3,070)Air Circulation (High) ft3/min (m3/h)

25,800

4,800

187 to 253

12.3

2,800

- 9.3

Outdoor Unit

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

Outdoor Unit

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

(86.0)

15.18

(0.43)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

32,000

9.40

< 230V >

( 11,600 to 32,000 )
( 3.40 to 9.40 )

-

-

10.3

2,350

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 : CMH3172A 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.

12

Outdoor Unit CMH3172A
Indoor Unit KMHS0972

Type

Total Capacity

Sensible Capacity
Latent Capacity

Performance

Available Voltage Range
Running Amperes

EER BTU/h/W 10.9 ­COP W/W - 4.0
SEER BTU/Wh 17.2 ­HSPF

Electrical Rating

Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity A20

Control Microprocessor
Fan Speeds Auto (Hi, Me, Lo)
Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control
Operation Sound (High) Cool / Heat

Features

Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant inch (mm)
Tube Diameter inch (mm)

Unit Dimensions

Height × Width × Depth

Package Dimensions

Height × Width × Depth

Weight

Dimensions & Weight

Shipping Volume

× 4

Narrow tube
Wide tube

Net
Shipping

4-Room Multi Outdoor Unit

4Number of Connectable Indoor Units
4Number of Operatable Indoor Units

208V Single-Phase 60HzVoltage Rating

Cooling Heating

BTU/h

BTU/h
BTU/h

BTU/Wh

dB-A

ft (m)

inch

(mm)

inch

(mm)
Ibs (kg)
Ibs (kg)

cu.ft (m

28,600

kW

V

A
WPower Input
%Power Factor 99 99

A 17.0

3

)

( 9,800 to 28,600 )

8.40

( 2.90 to 8.40 )

1,942 (3,300) 1,807 (3,070)Air Circulation (High) ft3/min (m3/h)

24,200

4,400

187 to 253

13.6

2,800

- 9.3

Outdoor Unit

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

Outdoor Unit

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

(86.0)

15.18

(0.43)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

32,000

9.40

< 208V >

( 11,600 to 32,000 )
( 3.40 to 9.40 )

-

-

11.4

2,350

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 : CMH3172A 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.

13

2-2. Major Component Specifications

2-2-1. Outdoor Unit

Outdoor Unit CMH1972A

Control PCB

Part No.

Controls

Control Circuit Fuse

Compressor

Type
Compressor Model / Nominal Output
Compressor Oil ... Amount
Coil Resistance (Ambient Temp. 68 °F (20 °C))

Safety Device

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

Operation cut-off control in abnormal ambient Temp.

Overload Relay

Operation Temp.

Run Capacitor

Crankcase Heater

Pints (cc)

Ohm

Model

Micro F

VAC

CB-CMH1972A
Microprocessor

250V 25A

DC Twin Rotary (Hermetic)

5KD240XAB21 / 1,700W

FV50S ... 1.91 (900)

U - V :

0.720
V - W :
W - U :

CS-7L-2515

Open : 239 °F (115 °C), Close : 212 °F (100 °C)

230V 30W

0.708

0.726

Yes
Yes
Yes

-

-

Fan

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

Fan Motor

Type
Model ... Q'ty
No. of Poles
Rough Measure RPM (Cool / Heat)
Nominal Output
Coil Resistance

(Ambient Temp. 68 °F (20 °C))

Safety Device

Type
Over-Current Protection

Run Capacitor

Heat Exchanger Coil

Coil

Rows
Fins per inch

Face Area

Over-Heat Protection

W

Ohm

Micro F

VAC

2

ft

(m2)

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)

External Finish Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

14

Outdoor Unit CMH2472A

Control PCB

Part No.

Controls

Control Circuit Fuse

Compressor

Type
Compressor Model / Nominal Output
Compressor Oil ... Amount
Coil Resistance (Ambient Temp. 68 °F (20 °C))

Safety Device

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

Operation cut-off control in abnormal ambient Temp.

Overload Relay

Run Capacitor

Crankcase Heater

Pints (cc)

Ohm

Model

Operation Temp.

Micro F

VAC

CB-CMH2472A
Microprocessor

250V 25A

DC Twin Rotary (Hermetic)

5KD240XAB21 / 1,700W

FV50S ... 1.91 (900)

U - V :

0.720
V - W :
W - U :

0.708

0.726

Yes
Yes
Yes

CS-7L-2515

Open : 239 °F (115 °C), Close : 212 °F (100 °C)

-

-

230V 30W

Fan

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

Fan Motor

Type
Model ... Q'ty
No. of Poles
Rough Measure RPM (Cool / Heat)
Nominal Output
Coil Resistance

(Ambient Temp. 68 °F (20 °C))

Safety Device

Type
Over-Current Protection
Over-Heat Protection

Run Capacitor

Heat Exchanger Coil

Coil

Rows
Fins per inch

Face Area

W

Ohm

Micro F

VAC

2

ft

(m2)

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)

External Finish Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

15

Outdoor Unit CMH3172A

Control PCB

Part No.

Controls

Control Circuit Fuse

Compressor

Type
Compressor Model / Nominal Output
Compressor Oil ... Amount
Coil Resistance (Ambient Temp. 68 °F (20 °C))

Safety Device

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

Operation cut-off control in abnormal ambient Temp.

Overload Relay

Run Capacitor

Crankcase Heater

Pints (cc)

Ohm

Model

Operation Temp.

Micro F

VAC

CB-CMH3172A
Microprocessor

250V 25A

DC Twin Rotary (Hermetic)

5JD420XAB22 / 3,000W

FV50S ... 2.55 (1,200)

U - V :

0.435
V - W :
W - U :

0.441

0.452

Yes
Yes
Yes

CS-7L-2515

Open : 239 °F (115 °C), Close : 212 °F (100 °C)

-

-

230V 30W

Fan

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

Fan Motor

Type
Model ... Q'ty
No. of Poles
Rough Measure RPM (Cool / Heat)
Nominal Output
Coil Resistance

(Ambient Temp. 68 °F (20 °C))

Safety Device

Type
Over-Current Protection
Over-Heat Protection

Run Capacitor

Heat Exchanger Coil

Coil

Rows
Fins per inch

Face Area

W

Ohm

Micro F

VAC

2

ft

(m2)

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)

External Finish Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

16

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

40
35
30
25
20

Resistance (k ohm)

15
10

5

Quantity of Sensor

CMH1972A CMH2472A CMH3172A

1

1
1 / 1
1 / 1
1 / 1

0

1

1
1 / 1
1 / 1
1 / 1
1 / 1

1

1
1 / 1
1 / 1
1 / 1
1 / 1

0

Sensor Name

Compressor temp sensor TKS293B

Model No.

of sensor

200
180
160

140
120
100

Resistance (k ohm)

80
60

40

-

4514 23 32 41 50 59 68

(

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

-

Temperature F ( C)

Quantity of Sensor

CMH1972A CMH2472A CMH3172A

11

1

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)

17

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

Narrow tube service valve
dia.1/4" (6.35) × 3

4-7/16

5-29/32 2-27/32 2-3/4

2-1/32 4-1/2

2-15/16

2-3/4

29-1/8(740)

23/32

1-13/16

35-7/16(900)

23-15/16 5-11/32

15/32

12-19/32(320)

13-19/32

14-17/32

11-17/32

ID:23/32

5-ID:15/16

1-3/8

2-15/16

2-1/16

3. DIMENSIONAL DATA

Outdoor Unit  CMH1972A

Unit: inch(mm)
(852-0-0010-11200-0)

18

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

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

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

4-7/16

5-29/32 2-27/32 2-3/4

2-3/4

2-1/32 4-1/2

2-15/16

2-3/4 2-3/4

29-1/8(740)

23/32

1-13/16

35-7/16(900)

23-15/16 5-11/32

15/32

12-19/32(320)

13-19/32

14-17/32

11-17/32

ID:23/32

5-ID:15/16

1-3/8

2-15/16

2-1/16

2-13/32

Outdoor Unit CMH2472A

Unit: inch(mm)
(852-0-0010-20400-0)

19

Outdoor Unit CMH3172A

Unit: inch(mm)
(852-0-0010-20300-0)

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

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

Wide tube service valve
dia.3/8" (9.52) × 2

4-7/16

5-29/32

2-1/32 4-1/2

2-15/16

2-3/4 2-3/4

35-1/32(890)

23/32

1-13/16

35-7/16(900)

23-15/16 5-11/32

15/32

12-19/32(320)

13-19/32

14-17/32

11-17/32

ID:23/32

5-ID:15/16

1-3/8

2-15/16

2-1/16

2-13/32

2-7/8 2-3/4 2-3/4

20

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

Outdoor Unit CMH1972A

Indoor unit Outdoor unit

Wide tube

O.D.3/8"

O.D.3/8"

O.D.3/8"

Narrow tube

O.D.1/4"

O.D.1/4"

O.D.1/4"

Service valve on
wide tube

CW

BW

AW

Header

Service valve on
narrow tube

CN

BN

AN

Strainer Header

Electric
expansion
valve

M

M

M

Sub
accumulator

4-way
valve

Defrost valve for
hot gas bypass

Main
accumulator

High pressure

switch

H.P.

S

Compressor

Heat exchanger

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).

After a tube has been insulated,

CAUTION

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

21

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

Wide tube

Insulation

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

Narrow tube

Outdoor Unit CMH2472A

Indoor unit Outdoor unit

Wide tube

O.D.1/2"

O.D.3/8"

O.D.3/8"

O.D.3/8"

Narrow tube

O.D.1/4"

O.D.1/4"

O.D.1/4"

O.D.1/4"

Service valve on
wide tube

DW

CW

BW

AW

Service valve on
narrow tube

DN

CN

BN

AN

Header

Electric
expansion
valve

M

M

M

M

Strainer Header

4-way
valve

Sub
accumulator

Defrost valve for
hot gas bypass

Main
accumulator

High pressure

switch

H.P.

S

Compressor

Heat exchanger

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).

After a tube has been insulated,

CAUTION

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

22

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

Wide tube

Insulation

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

Narrow tube

Outdoor Unit CMH3172A

Indoor unit Outdoor unit

Wide tube

O.D.1/2"

O.D.1/2"

O.D.3/8"

O.D.3/8"

Narrow tube

O.D.1/4"

O.D.1/4"

O.D.1/4"

O.D.1/4"

Service valve on
wide tube

DW

CW

BW

AW

Service valve on
narrow tube

DN

CN

BN

AN

Header

Electric
expansion
valve

M

M

M

M

Strainer Header

4-way
valve

Sub
accumulator

Defrost valve for
hot gas bypass

Main
accumulator

High pressure

switch

H.P.

S

Compressor

Heat exchanger

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).

After a tube has been insulated,

CAUTION

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

23

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

Wide tube

Insulation

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

Narrow tube

5. PERFORMANCE DATA

5-1. Temperature Charts

5-1-1. Temperature Charts (CMH1972A)

Outdoor Unit CMH1972A Indoor Unit KMHS0772 × 1

Cooling Characteristics

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

(1) Low pressure performance chart (1) High pressure performance chart

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

188

(1.3)

psig (MPaG)

174

(1.2)

160

(1.1)

Low pressure at wide tube service valve

146

(1.0)

Lo fanHi fan HH fan

p. 86°F (30°C

77

(25)

Indoor air tem

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

80°F (27°C)

75°F (24°C)

95

(35)

506

)

104
(40)

(3.5)

psig (MPaG)

434

(3.0)

362

(2.5)

High pressure at wide tube service valve

290

(2.0)

23

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

Indoor air temp. 73°F (23°C)

70°F (21°C)
63°F (17°C)

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

Lo fanHi fan HH fan

5

4

Indoor air temp. 86°F (30°C)

86

(30)

80°F (27°C)

75°F (24°C)

95

(35)

104
(40)

3

Operating current (A)

2

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

8

7

70°F (21°C

63°F (17°

C)

)

C)

6

Operating current (A)

5

23

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

Indoor air te

mp. 73°F (23°

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

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

Indoor air tem

)

p. 73°F (23°C

70°F (21°C)

63°F (17°C)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

Lo fanHi fan HH fan

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

46.4( 8)

Indoor discharge air temperature °F (°C)

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

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.

104
(40)

24

77(25)

Indoor discharge air temperature °F (°C)

23

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

Outdoor Unit CMH1972A Indoor Unit KMHS0972 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

188

(1.3)

psig (MPaG)

174

(1.2)

160

(1.1)

Low pressure at wide tube service valve

146

(1.0)

Lo fanHi fan

77

(25)

Indoor air temp. 86°F (30°C)

80°F (27°C)
75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

104
(40)

506

(3.5)

psig (MPaG)

434

(3.0)

362

(2.5)

High pressure at wide tube service valve

290

(2.0)

23

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

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

70°F (21°C)

70

63°F (17°C)

63

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

Lo fanHi fan

6

5

4

Operating current (A)

3

77

(25)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

104
(40)

8

7

3

70

Indoor air temp. 7

Indoor air temp. 73°F (23°C)

6

Operating current (A)

5

23

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

70°F (21°C)

63

63°F (17°C)

F (23

°

F (21

°

F (17

°

F (23

°

F (21

°

F (17

°

C)

°

C)

°

C)

°

C)

°

C)

°

C)

°

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

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.

Lo fanHi fan

77

(25)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

104
(40)

25

140(60)

131(55)

122(50)

Indoor air temp. 73

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

Indoor air temp. 73°F (23°C)

°

F (23

°

°C)

°F (21

70

70°F (21°C)

°C)

°F (17

63

63°F (17°C)

C)

Outdoor Unit CMH1972A Indoor Unit KMHS1272 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

578

174

(1.2)

psig (MPaG)

160

(1.1)

146

(1.0)

Low pressure at wide tube service valve

132

(0.9)

Lo fanHi fan

77

(25)

Indoor air temp. 86°F (30°C

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

)

104
(40)

(4.0)

506

psig (MPaG)

(3.5)

C)

°

F (23

434

(3.0)

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

F (21

°

20

70°F (21°C)

F (17

362

(2.5)

High pressure at wide tube service valve

23

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

°

63

63°F (17°C)

°

C)

°

C)

°

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

10

Lo fanHi fan

6

5

4

Operating current (A)

Indoor air temp. 86°F (30°C)

)

80°F (27°C

75°F (24°C)

HH fan

9

8

7

6

5

Operating current (A)

4

C)

°

F (23

°

C)

°

F (21

C)

°

°

70

70°F (21°C)

F (17

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

°

63

63°F (17°C)

3

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

3

23

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

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

Lo fanHi fan

77

(25)

Indoor air tem

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

p. 86°F (30°C)

95

(35)

HH fan

104
(40)

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.

140(60)

131(55)

122(50)

113(45)

Indoor air temp. 73

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

Indoor air temp. 73°F (23°C)

C)

°

F (23

°

C)

°

F (21

°

°

70

70°F (21°C)

F (17

°

63

63°F (17°C

C)

)

26

Outdoor Unit CMH1972A Indoor Unit KMHS1872 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

psig (MPaG)

160

(1.1)

146

(1.0)

Low pressure at wide tube service valve

132

(0.9)

Lo fanHi fan

77

(25)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

104
(40)

578

(4.0)

psig (MPaG)

506

(3.5)

F (23

°

434

(3.0)

High pressure at wide tube service valve

362

(2.5)

23

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

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

F (21

°

70

70°F (21°C

F (17

°

63

63°F (17°C)

C)

°

)

C)

°

C)

°

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

8

Lo fanHi fan

7

6

Operating current (A)

5

77

(25)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

104
(40)

12

11

10

Indoor air temp. 73

9

8

Operating current (A)

7

6

23

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

Indoor air temp. 73°F (23°C)

°

F (23

°

C)

°

F (21

°

70

70°F (21°C)

C)

°

F (17

°

63

63°F (17°C)

C)

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

Indoor discharge air temperature °F (°C)

46.4( 8)

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.

Lo fanHi fan

77

(25)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

104
(40)

27

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

Indoor discharge air temperature °F (°C)

77(25)

23

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

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

°

F (23

°

°

F (21

°

70

70°F (21°C)

°

F (17

°

63

63°F (17°C)

C)

C)

C)

Outdoor Unit CMH1972A Indoor Unit XMHS0972 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

psig (MPaG)

160

(1.1)

146

(1.0)

Low pressure at wide tube service valve

132

(0.9)

Lo fanHi fan

77

(25)

Indoor air temp. 86

Indoor air temp. 86°F (30°C)

°

80

80°F (27°C)

°

75

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

F (27

F (24

C)

°

C)

°

95

(35)

F (30

°

HH fan

C)

°

104
(40)

506

(3.5)

psig (MPaG)

F (23

434

(3.0)

Indoor air temp. 73

362

(2.5)

High pressure at wide tube service valve

290

(2.0)

23

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

Indoor air temp. 73°F (23°C)

°

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

C)

°

C)

°

C)

°

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

6

Lo fanHi fan

5

4

Operating current (A)

3

Indoor air tem

Indoor air tem

C)

°

F (27

°

80

80°F (27°C)

°

F (24

°

75

75°F (24°C)

p. 86

p. 86°F (30°C

C)

F (30

°

HH fan

)

C)

°

8

7

6

Operating current (A)

5

C)

°

F (23

°

3

C)

°

F (21

°

C)

°

70

70°F (21°C)

F (17

°

63

Indoor air temp. 7

Indoor air temp. 73°F (23°C)

63°F (17°C)

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

23

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

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

Lo fanHi fan

77

(25)

Indoor air temp. 86

Indoor air temp. 86°F (30°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

F (30

°

°

F (27

°

80

80°F (27°C)

F (24

°

75

75°F (24°C)

HH fan

C)

°

C)

C)

°

104
(40)

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.

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

Indoor air temp. 73°

Indoor air temp. 73°F (23°C)

F (23

F (21

°

70

70°F (21°C)

°F (17

63

63°F (17°C)

C)

°

C)

°

C)

°

28

Outdoor Unit CMH1972A Indoor Unit XMHS1272 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

Lo fanHi fan

HH fan

578

(4.0)

160

psig (MPaG)

(1.1)

146

(1.0)

132

(0.9)

Low pressure at wide tube service valve

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

95

(35)

104
(40)

506

psig (MPaG)

(3.5)

C)

°

F (23

434

(3.0)

Indoor air temp. 73

362

(2.5)

High pressure at wide tube service valve

23

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

Indoor air temp. 73°F (23°C)

°

C)

°

F (21

°

70

70°F (21°C)

C)

°

F (17

°

63

63°F (17°C)

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

10

Lo fanHi fan

6

5

4

Operating current (A)

3

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

95

(35)

HH fan

104
(40)

9

8

7

6

5

Operating current (A)

4

3

23

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

Indoor air tem

Indoor air tem

C)

°

F (23

°

C)

°

p. 73

p. 73°F (23°C)

F (21

°

70

70°F (21°C

C)

°

F (17

°

63

63°F (17°C)

)

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

42.8( 6)

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.

Lo fanHi fan

77

(25)

80°F (27°C)

75°F (24°C)

mp. 86°F (30°

95

(35)

Indoor air te

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

HH fan

C)

104
(40)

29

140(60)

131(55)

C)

122(50)

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

°

°F (23

C)

°

F (21

°

C)

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

Outdoor Unit CMH1972A Indoor Unit XHS1872 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

160

psig (MPaG)

(1.1)

146

(1.0)

132

(0.9)

Low pressure at wide tube service valve

Lo fanHi fan

77

(25)

Indoor air tem

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

p. 86°F (30°C)

95

(35)

HH fan

104
(40)

578

(4.0)

psig (MPaG)

506

(3.5)

°C)

F (23

434

(3.0)

Indoor air temp. 73

High pressure at wide tube service valve

Indoor air temp. 73°F (23°C)

362

(2.5)

23

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

°

C)

°

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

C)

°

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

Lo fanHi fan

7

6

5

Operating current (A)

4

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

95

(35)

HH fan

104
(40)

12

11

C)

F (21

F (17

F (23

°

C)

°

C)

°

°

10

9

°

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

70

8

Operating current (A)

7

6

23

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

70°F (21°C)

°

63

63°F (17°C)

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

42.8( 6)

Lo fanHi fan

77

(25)

HH fan

Indoor air tem

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

p. 86°F (30°C

95

(35)

)

104
(40)

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.

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

Indoor discharge air temperature °F (°C)

77(25)

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

23

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

F (21

°

70

70°F (21°C

F (17

63°

63°F (17°C)

F (23

°

C)

°

C)

°

C)

°

)

30

5-1-2. Temperature Charts (CMH2472A)

Outdoor Unit CMH2472A Indoor Unit KMHS0772 × 1

Cooling Characteristics

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

(1) Low pressure performance chart (1) High pressure performance chart

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

188

(1.3)

psig (MPaG)

174

(1.2)

160

(1.1)

Low pressure at wide tube service valve

146

(1.0)

Lo fanHi fan HH fan

Indoor air temp. 86°F (30°C)

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

80°F (27°C)

75°F (24°C)

104
(40)

506

(3.5)

psig (MPaG)

434

(3.0)

362

(2.5)

High pressure at wide tube service valve

290

(2.0)

23

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

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

70

70°F (21°C)

63

63°F (17°C)

F (23

°

F (21

°

F (17

°

C)

°

C)

°

C)

°

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

Lo fanHi fan HH fan

5

4

3

Operating current (A)

2

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

95

(35)

104
(40)

8

7

C)

°

F (23

6

Operating current (A)

5

23

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

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

°

°

F (21

°

70

70°F (21°

F (17

°

63

63°F (17°C)

C)

C)

C)

°

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

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

Indoor air tem

Indoor air tem

°C)

F (23

°

p. 73

p. 73°F (23°C

°

F (21

°

70

70°F (21°C)

C)

°

F (17

°

63

63°F (17°C)

C)

)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

Lo fanHi fan HH fan

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

46.4( 8)

Indoor discharge air temperature °F (°C)

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

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.

104
(40)

31

77(25)

Indoor discharge air temperature °F (°C)

23

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

Outdoor Unit CMH2472A Indoor Unit KMHS0972 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

188

(1.3)

psig (MPaG)

174

(1.2)

160

(1.1)

Low pressure at wide tube service valve

146

(1.0)

Lo fanHi fan

77

(25)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

104
(40)

506

(3.5)

psig (MPaG)

434

(3.0)

362

(2.5)

High pressure at wide tube service valve

290

(2.0)

23

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

Indoor air tem

Indoor air tem

p. 73

p. 73°F (23°C

70

70°F (21°C)

63

63°F (17°C)

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

Lo fanHi fan

6

5

4

Operating current (A)

3

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

86

(30)

Indoor air tem

80°F (27°C)

75°F (24°C)

p. 86°F (30°C)

95

(35)

HH fan

104
(40)

8

7

70

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

6

Operating current (A)

5

23

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

70°F (21°C)

63°

63°F (17°C)

F (23

°

F (21

°

F (17

°

F (23

°

F (21

°

F (17

)

C)

°

C)

°

C)

°

C)

°

C)

°

C)

°

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

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.

Lo fanHi fan

77

(25)

Indoor air temp. 86°F (30°C)

80°F (27°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

75°F (24°C)

104
(40)

32

140(60)

131(55)

122(50)

Indoor air temp. 73

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

Indoor air temp. 73°F (23°C)

°

F (23

°

°

F (21

°

70

70°F (21°C)

°

F (17

°

63

63°F (17°C)

C)

C)

C)

Outdoor Unit CMH2472A Indoor Unit KMHS1272 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

578

174

(1.2)

psig (MPaG)

160

(1.1)

146

(1.0)

Low pressure at wide tube service valve

132

(0.9)

Lo fanHi fan

77

(25)

Indoor air temp. 86°F (30°C

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

)

104
(40)

(4.0)

506

psig (MPaG)

(3.5)

C)

°

F (23

°

3

C)

434

(3.0)

Indoor air temp. 7

Indoor air temp. 73°F (23°C

362

(2.5)

High pressure at wide tube service valve

23

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

°

F (21

°

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

C)

)

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

10

Lo fanHi fan

6

5

4

Operating current (A)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

HH fan

9

8

7

6

5

Operating current (A)

4

Indoor air temp. 7

Indoor air temp. 73°F (23°C

)

C)

°

F (23

°

C)

3

°

F (21

°

70

70°F (21°C)

C)

°

F (17

°

63

63°F (17°C)

3

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

3

23

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

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

Lo fanHi fan

77

(25)

Indoor air te

80°F (27°C)

75°F (24°

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

mp. 86°F (30°

C)

95

(35)

HH fan

C)

104
(40)

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.

140(60)

131(55)

122(50)

113(45)

Indoor air tem

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

Indoor air tem

C)

°

F (23

C)

°

°

p. 73

p. 73°F (23°C)

F (21

°

°

70

70°F (21°C

F (17

°

63

63°F (17°C)

)

C)

33

Outdoor Unit CMH2472A Indoor Unit KMHS1872 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

psig (MPaG)

160

(1.1)

146

(1.0)

Low pressure at wide tube service valve

132

(0.9)

Lo fanHi fan

77

(25)

Indoor air tem

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

p. 86°F (30°C)

95

(35)

HH fan

104
(40)

578

(4.0)

psig (MPaG)

506

(3.5)

434

(3.0)

High pressure at wide tube service valve

362

(2.5)

23

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

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

°

F (23

°

°

F (21

°

°

70

70°F (21°C

F (17

°

63

63°F (17°C

C)

)

C)

)

C)

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

8

Lo fanHi fan

7

6

Operating current (A)

5

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

95

(35)

HH fan

104
(40)

12

11

10

Indoor air temp. 73

9

8

Operating current (A)

7

6

23

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

Indoor air temp. 73°F (23°C)

°C)

F (23

°

C)

°

F (21

°

70

70°F (21°C)

C)

°

F (17

°

63

63°F (17°C)

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

Indoor discharge air temperature °F (°C)

46.4( 8)

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.

Lo fanHi fan

77

(25)

Indoor air tem

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

p. 86°F (30°C

95

(35)

HH fan

)

104
(40)

34

140(60)

131(55)

122(50)

113(45)

Indoor air temp. 73

104(40)

95(35)

86(30)

Indoor discharge air temperature °F (°C)

77(25)

23

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

Indoor air temp. 73°F (23°C)

°

F (23

°

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

C)

C)

°

C)

°

Outdoor Unit CMH2472A Indoor Unit KMHS2472 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

psig (MPaG)

160

(1.1)

146

(1.0)

Low pressure at wide tube service valve

132

(0.9)

Lo fanHi fan

77

(25)

Indoor air temp. 86°F (30°C

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

80°F (27°C)

75°F (24°C)

HH fan

)

104
(40)

578

(4.0)

psig (MPaG)

506

(3.5)

p. 73

p. 73°F (23°C)

434

Indoor air tem

Indoor air tem

(3.0)

High pressure at wide tube service valve

362

(2.5)

23

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

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

°

°

°

F (23

C)

C)

C)

°

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

9

Lo fanHi fan

8

7

Operating current (A)

6

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

(35)

95

HH fan

104
(40)

14

13

12

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

11

10

Operating current (A)

9

8

23

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

°C)

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

°

C)

°

F (23

°

C)

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

Indoor discharge air temperature °F (°C)

46.4( 8)

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.

Lo fanHi fan

77

(25)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

HH fan

104
(40)

35

140(60)

131(55)

122(50)

p. 73

°C)

F (21

70°

70°F (21°C)

°

F (17

°

63

63°F (17°C)

p. 73°F (23°C)

C)

113(45)

Indoor air tem

104(40)

95(35)

86(30)

Indoor discharge air temperature °F (°C)

77(25)

Indoor air tem

23

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

F (23

°

C)

°

Outdoor Unit CMH2472A Indoor Unit XMHS0972 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

psig (MPaG)

160

(1.1)

146

(1.0)

Low pressure at wide tube service valve

132

(0.9)

Lo fanHi fan

77

(25)

Indoor air temp. 86

Indoor air temp. 86°F (30°C)

°

80

80°F (27°C)

°

75

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

F (27

F (24

C)

°

C)

°

95

(35)

F (30

°

HH fan

C)

°

104
(40)

506

(3.5)

psig (MPaG)

F (23

434

(3.0)

Indoor air temp. 73

362

(2.5)

High pressure at wide tube service valve

290

(2.0)

23

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

Indoor air temp. 73°F (23°C)

°

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

C)

°

C)

°

C)

°

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

6

Lo fanHi fan

5

4

Operating current (A)

3

Indoor air tem

Indoor air tem

C)

°

F (27

°

80

80°F (27°C)

°

F (24

°

75

75°F (24°C)

p. 86

p. 86°F (30°C

C)

F (30

°

HH fan

)

C)

°

8

7

6

Operating current (A)

5

C)

°

F (23

°

3

C)

°

F (21

°

C)

°

70

70°F (21°C)

F (17

°

63

Indoor air temp. 7

Indoor air temp. 73°F (23°C)

63°F (17°C)

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

23

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

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

Lo fanHi fan

77

(25)

Indoor air temp. 86

Indoor air temp. 86°F (30°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

F (30

°

°

F (27

°

80

80°F (27°C)

F (24

°

75

75°F (24°C)

HH fan

C)

°

C)

C)

°

104
(40)

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.

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

Indoor air temp. 73°

Indoor air temp. 73°F (23°C)

F (23

F (21

°

70

70°F (21°C)

°F (17

63

63°F (17°C)

C)

°

C)

°

C)

°

36

Outdoor Unit CMH2472A Indoor Unit XMHS1272 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

Lo fanHi fan

HH fan

578

(4.0)

160

psig (MPaG)

(1.1)

146

(1.0)

132

(0.9)

Low pressure at wide tube service valve

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

95

(35)

104
(40)

506

psig (MPaG)

(3.5)

C)

°

F (23

434

(3.0)

Indoor air temp. 73

362

(2.5)

High pressure at wide tube service valve

23

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

Indoor air temp. 73°F (23°C)

°

C)

°

F (21

°

70

70°F (21°C)

°C)

F (17

°

63

63°F (17°C)

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

10

Lo fanHi fan

6

5

4

Operating current (A)

3

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

95

(35)

HH fan

104
(40)

9

8

7

6

5

Operating current (A)

4

3

23

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

Indoor air tem

Indoor air tem

C)

°

F (23

°

C)

°

p. 73

p. 73°F (23°C)

F (21

°

70

70°F (21°C

C)

°

F (17

°

63

63°F (17°C)

)

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

42.8( 6)

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.

Lo fanHi fan

77

(25)

80°F (27°C)

75°F (24°C)

mp. 86°F (30°

95

(35)

Indoor air te

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

HH fan

C)

104
(40)

37

140(60)

131(55)

C)

122(50)

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

°

°F (23

C)

°

F (21

°

C)

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

Outdoor Unit CMH2472A Indoor Unit XHS1872 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

160

psig (MPaG)

(1.1)

146

(1.0)

132

(0.9)

Low pressure at wide tube service valve

Lo fanHi fan

77

(25)

Indoor air tem

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

p. 86°F (30°C)

95

(35)

HH fan

104
(40)

578

(4.0)

psig (MPaG)

506

(3.5)

°C)

F (23

434

(3.0)

Indoor air temp. 73

High pressure at wide tube service valve

Indoor air temp. 73°F (23°C)

362

(2.5)

23

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

°

C)

°

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

C)

°

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

Lo fanHi fan

7

6

5

Operating current (A)

4

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

95

(35)

HH fan

104
(40)

12

11

C)

F (21

F (17

F (23

°

C)

°

C)

°

°

10

9

°

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

70

8

Operating current (A)

7

6

23

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

70°F (21°C)

°

63

63°F (17°C)

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

42.8( 6)

Lo fanHi fan

77

(25)

HH fan

Indoor air tem

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

p. 86°F (30°C

95

(35)

)

104
(40)

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.

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

Indoor discharge air temperature °F (°C)

77(25)

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

23

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

F (21

°

70

70°F (21°C

F (17

63°

63°F (17°C)

F (23

°

C)

°

C)

°

C)

°

)

38

5-1-3. Temperature Charts (CMH3172A)

Outdoor Unit CMH3172A Indoor Unit KMHS0772 × 1

Cooling Characteristics

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

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

psig (MPaG)

146

(1.0)

118

(0.8)

Low pressure at wide tube service valve

(0.6)

Lo fanHi fan Hi fan HH fan

Indoor air temp. 86°F (30°C)

90

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

80°F (27°C

75°F (24°C)

95

(35)

)

104
(40)

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

5

Lo fanHi fan Hi fan HH fan

80°F (27°C)

4

Indoor air temp. 86°F (30°C)

Operating current (A)

75°F (24°C)

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

506

(3.5)

434

psig (MPaG)

(3.0)

Indoor air temp. 73

362

(2.5)

290

(2.0)

High pressure at wide tube service valve

218

(1.5)

23

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

9

8

7

6

Operating current (A)

5

Indoor air temp. 73°F (23°C)

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

F (17

°

63

63°F (17°C)

°C)

°F (23

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

F (23

°

C)

°

F (21

°

70

70°F (21°C)

C)

°

°

°C)

C)

C)

°

3

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

4

23

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

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

Lo fanHi fan Hi fan HH fan

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

Indoor discharge air temperature °F (°C)

46.4( 8)
77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

86

(30)

80°F (27°C)

75°F (24°C)

95

(35)

104
(40)

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

Indoor discharge air temperature °F (°C)

77(25)

23

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

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

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.

°

F (23

°

°

F (21

°

70

70°F (21°C)

C)

°

F (17

63°

63°F (17°C)

C)

C)

39

Outdoor Unit CMH3172A Indoor Unit KMHS0972 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

506

174

(1.2)

psig (MPaG)

146

(1.0)

118

(0.8)

Low pressure at wide tube service valve

90

(0.6)

Lo fanHi fan Hi fan HH fan

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

)

95

(35)

104
(40)

(3.5)

434

psig (MPaG)

(3.0)

Indoor air temp. 73

362

(2.5)

290

(2.0)

High pressure at wide tube service valve

218

(1.5)

23

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

Indoor air temp. 73°F (23°C)

C)

°

F (23

°

°

F (21

°

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

C)

C)

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

5

Lo fanHi fan Hi fan HH fan

4

Operating current (A)

)

80°F (27°C)

75°F (24°C)

Indoor air temp. 86°F (30°C

8

7

6

Operating current (A)

5

C)

°

F (23

°

C)

°

C)

°

F (21

°

70

70°F (21°C)

F (17

°

63

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

63°F (17°C)

3

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

4

23

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

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

Lo fanHi fan Hi fan HH fan

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

95

(35)

104
(40)

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.

140(60)

131(55)

122(50)

Indoor air temp. 73

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

Indoor air temp. 73°F (23°C)

F (23

°

C)

°

°F (21

°

70

70°F (21°C

F (17

°

63

63°F (17°C)

C)

°

)

C)

40

Outdoor Unit CMH3172A Indoor Unit KMHS1272 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

C)

F (21

F (17

°

°

C)

°

F (23

C)

°

°

)

174

(1.2)

psig (MPaG)

146

(1.0)

118

(0.8)

Low pressure at wide tube service valve

90

(0.6)

Lo fanHi fan Hi fan HH fan

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

506

(3.5)

434

psig (MPaG)

(3.0)

362

(2.5)

290

(2.0)

High pressure at wide tube service valve

218

(1.5)

23

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

°

70

70°F (21°C)

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

63

63°F (17°C

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

6

Lo fanHi fan Hi fan HH fan

5

4

Operating current (A)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

13

12

11

70

70°F (21°C)

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

10

9

Operating current (A)

8

F (23

°

C)

°

C)

F (21

°

°

°F (17

63

63°F (17°C)

C)

°

3

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

(3) Indoor discharge air performance chart

Lo fanHi fan Hi fan HH fan

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

86

(30)

95

(35)

80°F (27°C)

75°F (24°C)

104
(40)

104
(40)

(3) Indoor discharge air performance chart

7

23

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

C)

°

F (23

F (21

°

F (17

°

°

C)

°

C)

°

140(60)

131(55)

122(50)

113(45)

104(40)

Indoor discharge air temperature °F (°C)

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

70

70°F (21°C)

63

63°F (17°C)

95(35)

86(30)

77(25)

23

(-5)32(0)41(5)50(10)59(15)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.

41

Outdoor Unit CMH3172A Indoor Unit KMHS1872 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

C)

°

F (23

°

3

C)

°

C)

°

174

(1.2)

psig (MPaG)

146

(1.0)

Indoor air temp. 86°F (30°C

118

(0.8)

Low pressure at wide tube service valve

90

(0.6)

77

(25)

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Lo fanHi fan

)

95

(35)

104
(40)

506

(3.5)

Indoor air temp. 7

Indoor air temp. 73°F (23°C)

434

psig (MPaG)

(3.0)

362

(2.5)

290

(2.0)

High pressure at wide tube service valve

218

(1.5)

23

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

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

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

9

8

7

6

Operating current (A)

5

Lo fanHi fan

80°F (27°C)

Indoor air temp. 86°F (30°C)

75°F (24°C)

14

13

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

12

Operating current (A)

C)

°

F (23

°

C)

°

F (21

°

C)

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

4

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

11

23

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

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

C)

140(60)

131(55)

122(50)

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

C)

Indoor air temp. 7

Indoor air temp. 73°F (23°C)

°

F (21

°

70

70°F (21°C)

C)

°

F (17

°

63

63°F (17°C)

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

77

(25)

Indoor air temp. 86°F (30°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Lo fanHi fan

80°F (27°C)

75°F (24°C)

95

(35)

104
(40)

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.

3

F (23

°

°

42

Outdoor Unit CMH3172A Indoor Unit KMHS2472 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

psig (MPaG)

146

(1.0)

Lo fanHi fan

506

(3.5)

434

psig (MPaG)

(3.0)

362

(2.5)

Indoor air tem

Indoor air tem

F (21

°

70

70°F (21°C)

°

63

63°F (17°C)

p. 73

p. 73°F (23°C)

F (17

C)

°

F (23

°

C)

°

C)

°

118

(0.8)

Low pressure at wide tube service valve

90

(0.6)

77

(25)

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

290

(2.0)

High pressure at wide tube service valve

218

(1.5)

23

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

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

12

11

10

Operating current (A)

9

8

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Lo fanHi fan

Indoor air temp. 86°F (30°C)

80°F (27°C)

86

(30)

75°F (24°C

)

95

(35)

104
(40)

14

13

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

12

Operating current (A)

11

23

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

C)

°

F (23

°

C)

°

C)

°F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

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

Lo fanHi fan

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

86

(30)

Indoor air tem

p. 86°F (30°C

80°F (27°C)

75°F (24°C)

95

(35)

)

104
(40)

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.

140(60)

131(55)

122(50)

113(45)

104(40)

Indoor discharge air temperature °F (°C)

Indoor air temp. 7

Indoor air temp. 73°F (23°C)

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

95(35)

86(30)

77(25)

23

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

C)

°

F (23

°

3

C)

°

C)

°

43

Outdoor Unit CMH3172A Indoor Unit XMHS0972 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

psig (MPaG)

146

(1.0)

118

(0.8)

Low pressure at wide tube service valve

90

(0.6)

Lo fanHi fan Hi fan HH fan

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

(3.5)

434

psig (MPaG)

(3.0)

Indoor air temp. 73

362

(2.5)

290

(2.0)

High pressure at wide tube service valve

218

(1.5)

23

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

Indoor air temp. 73°F (23°C)

C)

°

F (23

°

C)

°

F (21

°

C)

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

506

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

Lo fanHi fan Hi fan HH fan

5

80°F (27°C)

75°F (24°C)

8

C)

°

F (23

°

7

Indoor air temp. 73

6

Indoor air temp. 73°F (23°C)

C)

°

F (21

°

°

70

70°F (21°C)

F (17

63°

63°F (17°C)

C)

Operating current (A)

4

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Indoor air temp. 86°F (30°C)

86

(30)

95

(35)

104
(40)

Operating current (A)

5

4

23

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

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

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

42.8( 6)

Indoor discharge air temperature °F (°C)

Lo fanHi fan Hi fan HH fan

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

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.

140(60)

131(55)

122(50)

Indoor air temp. 73

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

Indoor air temp. 73°F (23°C)

F (23

°

C)

°

F (21

°

70

70°F (21°C)

°

F (17

63°

63°F (17°C)

C)

°

C)

44

Outdoor Unit CMH3172A Indoor Unit XMHS1272 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

psig (MPaG)

146

(1.0)

118

(0.8)

Low pressure at wide tube service valve

90

(0.6)

Lo fanHi fan Hi fan HH fan

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

104
(40)

506

(3.5)

434

psig (MPaG)

(3.0)

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

362

(2.5)

290

(2.0)

High pressure at wide tube service valve

218

(1.5)

23

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

°

F (21

°

70

70°F (21°C)

°

F (17

°

63

63°F (17°C

C)

°

F (23

°

C)

)

C)

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

Lo fanHi fan Hi fan HH fan

6

5

Operating current (A)

4

Indoor air temp. 86°F (30°C)

80°F (27°C)

75°F (24°C)

13

12

11

10

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

9

Operating current (A)

8

°

F (21

°

70

70°F (21°C)

°

F (17

°

63

63°F (17°C)

C)

C)

F (23

°

C)

°

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

(3) Indoor discharge air performance chart

68.0(20)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

Indoor discharge air temperature °F (°C)

42.8( 6)

Lo fanHi fan Hi fan HH fan

Indoor air temp. 86°F (30°C)

77

(25)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

95

(35)

80°F (27°C)

75°F (24°C)

104
(40)

104
(40)

(3) Indoor discharge air performance chart

7

23

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

140(60)

131(55)

122(50)

Indoor air temp. 73

Indoor air temp. 73°F (23°C)

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

°

F (21

°

70

70°F (21°C)

°

F (17

°

63

63°F (17°C

°C)

°F (23

C)

)

C)

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.

45

Outdoor Unit CMH3172A Indoor Unit XHS1872 × 1

Cooling Characteristics

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

Heating Characteristics

(RH : 85%, Indoor fan speed : High fan)
(230V, 60Hz)

(1) Low pressure performance chart (1) High pressure performance chart

174

(1.2)

psig (MPaG)

146

(1.0)

Indoor air temp. 86°F (30°C)

118

(0.8)

Low pressure at wide tube service valve

90

(0.6)

77

(25)

80°F (27°C)

75°F (24°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Lo fanHi fan

95

(35)

104
(40)

506

(3.5)

434

Indoor air temp. 7

Indoor air temp. 73°F (23°C)

psig (MPaG)

(3.0)

362

(2.5)

290

(2.0)

High pressure at wide tube service valve

218

(1.5)

F (21

°

70

70°F (21°C)

F (17

°

63

63°F (17°C)

23

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

C)

°

F (23

°

3

C)

°

C)

°

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

9

8

7

6

Operating current (A)

5

77

(25)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

80°F (27°C)

Indoor air temp. 86°F (30°C)

75°F (24°C)

86

(30)

Lo fanHi fan

95

(35)

104
(40)

14

13

Indoor air temp. 7

Indoor air temp. 73°F (23°C)

12

Operating current (A)

11

23

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

°

F (23

°

3

°C)

°F (21

70

70°F (21°C)

C)

°

F (17

°

63

63°F (17°C)

C)

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

140(60)

131(55)

C)

122(50)

Indoor air temp. 73

Indoor air temp. 73°F (23°C

113(45)

104(40)

95(35)

86(30)

77(25)

Indoor discharge air temperature °F (°C)

23

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

°

F (21

°

70

70°F (21°C)

C)

°

F (17

°

63

63°F (17°C)

64.4(18)

60.8(16)

57.2(14)

53.6(12)

50.0(10)

46.4( 8)

42.8( 6)

39.2( 4)

Indoor discharge air temperature °F (°C)

77

(25)

Indoor air temp. 86°F (30°C)

86

(30)

Outdoor air temperature °F (°C) Outdoor air temperature °F (°C)

Lo fanHi fan

80°F (27°C)

75°F (24°C)

95

(35)

104
(40)

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.

F (23

°

)

C)

°

46

5-2. Cooling Capacity

Outdoor Unit : CMH1972A
Indoor Unit : KMHS0972 × 3
Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

RATING CAPACITY: 19,100 BTU/h AIR FLOW RATE: 883 CFM

INDOOR OUTDOOR

ENT. TEMP. °F (°C) AMBIENT TEMP. °F (°C)

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

TC 19,180 18,500 17,770 17,210 16,350 15,440

72 (22.2) SHC 17,130 16,960 16,610 16,270 15,930 15,440

59 76 (24.4) SHC 19,180 18,500 17,770 17,210 16,350 15,440

(15.0) 80 (26.7) SHC 19,180 18,500 17,770 17,210 16,350 15,440

84 (28.9) SHC 19,180 18,500 17,770 17,210 16,350 15,440
88 (31.1) SHC 19,180 18,500 17,770 17,210 16,350 15,440

TC 20,150 19,450 18,700 18,140 17,250 16,290

72 (22.2) SHC 14,040 13,700 13,360 13,190 12,840 12,330

63 76 (24.4) SHC 16,960 16,610 16,270 16,100 15,760 15,410

(17.2) 80 (26.7) SHC 20,040 19,450 18,700 18,140 17,250 16,290

84 (28.9) SHC 20,150 19,450 18,700 18,140 17,250 16,290
88 (31.1) SHC 20,150 19,450 18,700 18,140 17,250 16,290

TC 21,140 20,420 19,640 # 19,100 18,180 17,180

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

72 (22.2) SHC 10,610 10,440 10,100 9,930 9,590 9,240

67 76 (24.4) SHC 13,700 13,360 13,010 12,840 12,500 12,160

(19.4) 80 (26.7) SHC 16,790 16,440 16,270 15,930 15,760 15,240

84 (28.9) SHC 19,700 19,530 19,190 19,010 18,180 17,180
88 (31.1) SHC 21,140 20,420 19,640 19,100 18,180 17,180

TC 22,130 21,400 20,600 20,080 19,130 18,100

72 (22.2) SHC 7,190 7,010 6,670 6,500 6,160 5,810

71 76 (24.4) SHC 10,100 9,930 9,590 9,410 9,240 8,900

(21.7) 80 (26.7) SHC 13,360 13,010 12,840 12,670 12,330 11,990

84 (28.9) SHC 16,270 16,100 15,760 15,590 15,240 14,900
88 (31.1) SHC 19,190 19,010 18,670 18,500 18,330 17,990

TC 23,020 22,270 21,450 20,980 20,000 18,930

75 76 (24.4) SHC 6,840 6,670 6,330 6,160 5,980 5,640

(23.9) 80 (26.7) SHC 9,930 9,760 9,410 9,240 9,070 8,730

84 (28.9) SHC 12,840 12,670 12,500 12,330 11,990 11,640

88 (31.1) SHC 15,930 15,590 15,410 15,240 14,900 14,730

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.

47

Outdoor Unit : CMH1972A
Indoor Unit : XMHS1272 × 3
Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

RATING CAPACITY: 17,400 BTU/h AIR FLOW RATE: 706 CFM

o

ENT. TEMP.

W.B. D.B. 65 75 85 95 105115

59 76 (24.4) SHC 17,460 16,890 16,260 15,760 15,020 14,220

(15.0) 80 (26.7) SHC 17,460 16,890 16,260 15,760 15,020 14,220

63 76 (24.4) SHC 15,180 14,900 14,630 14,490 14,080 13,810

(17.2) 80 (26.7) SHC 17,920 17,650 17,060 16,570 15,810 14,980

o

F (

TC 17,460 16,890 16,260 15,760 15,020 14,220

72 (22.2) SHC 15,450 15,180 14,900 14,630 14,350 13,940

84 (28.9) SHC 17,460 16,890 16,260 15,760 15,020 14,220
88 (31.1) SHC 17,460 16,890 16,260 15,760 15,020 14,220

TC 18,290 17,700 17,060 16,570 15,810 14,980

72 (22.2) SHC 12,570 12,300 12,02011,89011,61011,200

84 (28.9) SHC 18,290 17,700 17,060 16,570 15,810 14,980
88 (31.1) SHC 18,290 17,700 17,060 16,570 15,810 14,980

TC 19,120 18,520 17,870#17,400 16,610 15,760

ROODTUOROODNI

o

.PMET TNEIBMA)C

F (oC)

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

72 (22.2) SHC 9,690 9,420 9,140 9,000 8,730 8,460

67 76 (24.4) SHC 12,300 12,02011,75011,61011,34011,060

(19.4) 80 (26.7) SHC 15,040 14,770 14,490 14,350 14,080 13,670

84 (28.9) SHC 17,650 17,370 17,100 16,960 16,610 15,760
88 (31.1) SHC 19,120 18,520 17,870 17,400 16,610 15,760

TC 19,950 19,350 18,690 18,240 17,440 16,560

72 (22.2) SHC 6,540 6,400 6,120 5,990 5,710 5,440

71 76 (24.4) SHC 9,140 9,000 8,730 8,590 8,320 8,040

(21.7) 80 (26.7) SHC11,89011,75011,47011,34011,060 10,790

84 (28.9) SHC 14,490 14,350 14,080 13,940 13,670 13,390
88 (31.1) SHC 17,100 16,960 16,690 16,550 16,270 16,000

TC 20,670 20,070 19,400 18,990 18,180 17,260

75 76 (24.4) SHC 6,260 5,990 5,850 5,710 5,440 5,160

(23.9) 80 (26.7) SHC 9,000 8,730 8,590 8,460 8,180 7,910

84 (28.9) SHC11,61011,34011,20011,060 10,790 10,510
88 (31.1) SHC 14,220 13,940 13,810 13,670 13,390 13,120

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.

48

Outdoor Unit : CMH2472A
Indoor Unit : KMHS0972 × 3
Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

RATING CAPACITY: 23,200 BTU/h AIR FLOW RATE: 883 CFM

INDOOR OUTDOOR

ENT. TEMP. °F (°C) AMBIENT TEMP. °F (°C)

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

TC 23,420 22,600 21,710 21,090 20,040 15,560

72 (22.2) SHC 19,190 18,840 18,330 18,160 17,640 15,560

59 76 (24.4) SHC 22,100 21,760 21,410 21,070 20,040 15,560

(15.0) 80 (26.7) SHC 23,420 22,600 21,710 21,090 20,040 15,560

84 (28.9) SHC 23,420 22,600 21,710 21,090 20,040 15,560
88 (31.1) SHC 23,420 22,600 21,710 21,090 20,040 15,560

TC 24,490 23,650 22,730 22,140 21,050 15,980

72 (22.2) SHC 15,760 15,410 15,070 14,730 14,390 12,330

63 76 (24.4) SHC 18,840 18,330 17,990 17,810 17,300 15,240

(17.2) 80 (26.7) SHC 21,930 21,590 21,070 20,900 20,390 15,980

84 (28.9) SHC 24,490 23,650 22,730 22,140 21,050 15,980
88 (31.1) SHC 24,490 23,650 22,730 22,140 21,050 15,980

TC 25,560 24,700 23,760 # 23,200 22,080 16,380

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

72 (22.2) SHC 12,330 11,990 11,640 11,470 10,960 8,900

67 76 (24.4) SHC 15,410 15,070 14,730 14,390 14,040 11,990

(19.4) 80 (26.7) SHC 18,500 18,160 17,810 17,470 17,130 15,070

84 (28.9) SHC 21,410 21,070 20,730 20,560 20,040 16,380
88 (31.1) SHC 24,500 24,160 23,640 23,200 22,080 16,380

TC 26,610 25,730 24,770 24,270 22,840 16,730

72 (22.2) SHC 8,730 8,390 8,040 7,870 7,360 5,470

71 76 (24.4) SHC 11,810 11,470 11,130 10,960 10,440 8,390

(21.7) 80 (26.7) SHC 14,900 14,560 14,210 14,040 13,530 11,470

84 (28.9) SHC 17,810 17,470 17,130 16,960 16,440 14,560
88 (31.1) SHC 20,900 20,560 20,210 20,040 19,530 16,730

TC 27,510 26,620 25,640 25,210 23,240 17,000

75 76 (24.4) SHC 8,210 7,870 7,700 7,530 6,840 4,960

(23.9) 80 (26.7) SHC 11,300 11,130 10,790 10,610 9,930 8,210

84 (28.9) SHC 14,390 14,040 13,700 13,530 13,010 11,130
88 (31.1) SHC 17,300 16,960 16,790 16,610 15,930 14,040

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.

49

Outdoor Unit : CMH2472A
Indoor Unit : XHS1872 + XMHS1272 + XMHS1272
Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

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

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.

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

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.

NOTE

RATING CAPACITY: 22,000 BTU/h AIR FLOW RATE:812 CFM

ROODTUOROODNI

ENT. TEMP.

o

F (

o

.PMET TNEIBMA)C

o

F (oC)

W.B. D.B. 65758595105 115

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

TC 22,20021,450 20,630 20,050 19,08014,830

CI

1.18 1.43 1.68 1.84 2.09 1.91

72 (22.2) SHC 18,57018,26017,780 17,630 17,15014,830

59 76 (24.4) SHC 21,570 21,100 20,630 20,05019,08014,830

(15.0) 80 (26.7) SHC 22,200 21,450 20,630 20,05019,08014,830

84 (28.9) SHC 22,20021,450 20,630 20,05019,08014,830
88 (31.1) SHC 22,20021,450 20,630 20,05019,08014,830

TC 23,18022,410 21,58021,020 20,02015,230

CI 1.19 1.45 1.71 1.87 2.14 1.91

72 (22.2) SHC 15,26014,940 14,630 14,31014,00011,950

6376(24.4) SHC 18,26017,780 17,47017,31016,84014,940

(17.2) 80 (26.7) SHC 21,250 20,940 20,620 20,31019,99015,230

84 (28.9) SHC 23,18022,410 21,580 21,02020,02015,230
88 (31.1) SHC 23,18022,410 21,580 21,02020,02015,230

TC 24,16023,380 22,520#22,000 20,98015,610

CI

1.20 1.48 1.75 1.90 2.18 1.91

72 (22.2) SHC 11,95011,630 11,320 11,000 10,690 8,790

6776(24.4) SHC 14,790 14,470 14,16014,00013,680 11,630

(19.4) 80 (26.7) SHC 17,940 17,630 17,31017,15016,680 14,790

84 (28.9) SHC 20,78020,620 20,150 19,99019,680 15,610
88 (31.1) SHC 23,78023,380 22,520 22,00020,98015,610

TC 25,110 24,320 23,45022,980 21,80015,940

CI

1.23 1.51 1.79 1.94 2.22 1.91

72 (22.2) SHC 8,3208,000 7,690 7,530 7,220 5,320

71 76 (24.4) SHC 11,320 11,000 10,690 10,53010,2108,160

(21.7) 80 (26.7) SHC 14,310 14,160 13,84013,680 13,21011,320

84 (28.9) SHC 17,31016,990 16,680 16,520 16,21014,160
88 (31.1) SHC 20,31019,990 19,680 19,52019,04015,940

TC 25,92025,120 24,25023,840 22,17016,190

CI

1.26 1.55 1.84 1.98 2.22 1.91

75 76 (24.4) SHC 7,8507,530 7,370 7,220 6,740 4,850

(23.9) 80 (26.7) SHC 10,840 10,690 10,37010,2109,740 8,000

84 (28.9) SHC 13,84013,520 13,370 13,21012,74010,840
88 (31.1) SHC 16,840 16,520 16,210 16,210 15,57013,840

50

Outdoor Unit : CMH3172A
Indoor Unit : KMHS0972 × 4
Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

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

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.

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

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.

NOTE

RATING CAPACITY: 30,600 BTU/h AIR FLOW RATE: 1,177 CFM

INDOOR OUTDOOR

ENT. TEMP. °F (°C) AMBIENT TEMP. °F (°C)

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

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

TC 31,170 30,000 28,730 28,010 22,960 16,690

72 (22.2) SHC 25,580 24,900 24,440 23,980 21,700 16,690

59 76 (24.4) SHC 29,470 29,010 28,320 28,010 22,960 16,690

(15.0) 80 (26.7) SHC 31,170 30,000 28,730 28,010 22,960 16,690

84 (28.9) SHC 31,170 30,000 28,730 28,010 22,960 16,690
88 (31.1) SHC 31,170 30,000 28,730 28,010 22,960 16,690

TC 32,490 31,280 29,960 29,310 23,400 16,970

72 (22.2) SHC 21,010 20,550 19,870 19,640 17,120 14,610

63 76 (24.4) SHC 24,900 24,440 23,980 23,520 21,240 16,970

(17.2) 80 (26.7) SHC 29,010 28,550 28,100 27,640 23,400 16,970

84 (28.9) SHC 32,490 31,280 29,960 29,310 23,400 16,970
88 (31.1) SHC 32,490 31,280 29,960 29,310 23,400 16,970

TC 33,790 32,540 31,170 # 30,600 23,770 17,200

72 (22.2) SHC 16,440 15,980 15,290 15,070 12,550 10,270

67 76 (24.4) SHC 20,320 19,870 19,410 19,180 16,670 14,150

(19.4) 80 (26.7) SHC 24,440 23,980 23,520 23,300 20,780 17,200

84 (28.9) SHC 28,550 28,100 27,410 27,180 23,770 17,200
88 (31.1) SHC 32,440 31,980 31,170 30,600 23,770 17,200

TC 35,020 33,730 32,320 31,860 24,020 17,350

72 (22.2) SHC 11,410 10,950 10,490 10,490 7,750 5,690

71 76 (24.4) SHC 15,520 15,070 14,610 14,380 11,640 9,580

(21.7) 80 (26.7) SHC 19,640 19,180 18,720 18,500 15,980 13,690

84 (28.9) SHC 23,520 23,070 22,610 22,610 19,870 17,350
88 (31.1) SHC 27,640 27,180 26,720 26,500 23,750 17,350

TC 36,040 34,730 33,270 32,940 24,130 17,390

75 76 (24.4) SHC 10,720 10,270 9,810 9,810 7,070 5,240

(23.9) 80 (26.7) SHC 14,840 14,610 14,150 13,920 11,180 9,350

84 (28.9) SHC 18,950 18,500 18,040 17,810 15,290 13,240
88 (31.1) SHC 22,840 22,380 21,920 21,920 19,180 17,350

51

Outdoor Unit : CMH3172A
Indoor Unit : XMHS0972 × 4
Power Supply : 230V Single Phase 60Hz

< Cooling Capacity >

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

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.

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

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.

NOTE

RATING CAPACITY: 28,600 BTU/h AIR FLOW RATE:883 CFM

ROODTUOROODNI

ENT. TEMP.

o

F (

o

.PMET TNEIBMA)C

o

F (oC)

W.B. D.B. 65 75 85 95 105115

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

TC 29,10028,130 27,060 26,410 21,68015,790

72 (22.2) SHC 22,73022,210 21,700 21,53019,30015,790

59 76 (24.4) SHC 25,980 25,470 24,96024,78021,68015,790

(15.0) 80 (26.7) SHC 29,100 28,130 27,06026,41021,68015,790

84 (28.9) SHC 29,10028,130 27,060 26,41021,68015,790
88 (31.1) SHC 29,10028,130 27,060 26,41021,68015,790

TC 30,18029,200 28,110 27,520 22,03016,020

72 (22.2) SHC 18,78018,440 17,930 17,76015,36012,960

63 76 (24.4) SHC 22,210 21,700 21,18021,01018,61016,020

(17.2) 80 (26.7) SHC 25,640 25,130 24,61024,44022,03016,020

84 (28.9) SHC 28,90028,390 27,870 27,52022,03016,020
88 (31.1) SHC 30,18029,200 28,110 27,52022,03016,020

TC 31,22030,220 29,110 #28,600 22,29016,190

72 (22.2) SHC 15,01014,500 14,160 13,81011,4109,360

67 76 (24.4) SHC 18,270 17,760 17,41017,24014,67012,610

(19.4) 80 (26.7) SHC 21,700 21,180 20,84020,67018,10016,040

84 (28.9) SHC 24,96024,440 24,100 23,93021,53016,190
88 (31.1) SHC 28,21027,870 27,360 27,18022,29016,190

TC 32,17031,160 30,03029,630 22,45016,280

72 (22.2) SHC 10,73010,380 10,040 9,870 7,3005,410

71 76 (24.4) SHC 13,980 13,640 13,30013,13010,7308,670

(21.7) 80 (26.7) SHC 17,410 17,070 16,73016,56014,16012,100

84 (28.9) SHC 20,84020,330 19,980 19,81017,41015,360
88 (31.1) SHC 24,10023,760 23,240 23,07020,67016,280

TC 32,91031,900 30,76030,490 22,46016,280

75 76 (24.4) SHC 10,040 9,7009,360 9,180 6,7804,900

(23.9) 80 (26.7) SHC 13,470 13,130 12,78

012,61010,2108,330
84 (28.9) SHC 16,73016,380 16,040 15,87013,47011,580
88 (31.1) SHC 19,98019,640 19,300 19,30016,73014,840

52

Outdoor Unit : CMH1972A
Indoor Unit : KMHS0972 × 3
Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

5-3. Heating Capacity

TH : Total Heating Capacity (BTU/h)

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.

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

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.

NOTE

RATING CAPACITY: 24,800 BTU/hAIR FLOW RATE: 847 CFM

OUTDOOR INDOOR

ENT. TEMP. °F (°C) AMBIENT TEMP. °F (°C)

W.B. 60 65 70 75 80

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

0 (-17.8) TH 13,820 13,790 13,750 13,710 13,660

3 (-16.1) TH 14,280 14,250 14,220 14,170 14,120

8 (-13.3) TH 15,390 15,360 15,320 15,280 15,220

13 (-10.6) TH 16,540 16,510 16,470 16,420 16,360

18 (-7.8) TH 17,810 17,780 17,740 17,680 17,620

23 (-5.0) TH 19,150 19,110 19,070 19,010 18,930

28 (-2.2) TH 20,540 20,500 20,450 20,380 20,310

33 (0.6) TH 21,980 21,940 21,880 21,810 21,730

38 (3.3) TH 23,400 23,360 23,300 23,220 23,130

43 (6.1) TH 24,920 24,870 # 24,800 24,720 24,620

48 (8.9) TH 26,450 26,400 26,330 26,240 26,130

53 (11.7) TH 28,000 27,940 27,870 27,770 27,660

58 (14.4) TH 29,500 29,440 29,360 29,250 29,130

63 (17.2) TH 31,050 30,980 30,890 30,780 30,660

65 (18.3) TH 31,650 31,580 31,490 31,380 31,250

53

Outdoor Unit : CMH1972A
Indoor Unit : XMHS1272 × 3
Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

TH : Total Heating Capacity (BTU/h)

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.

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

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.

NOTE

MFC308:ETAR WOLF RIAh/UTB000,42 :YTICAPAC GNITAR

ROODNIROODTUO

ENT. TEMP.

o

F (

o

.PMET TNEIBMA)C

o

F (oC)

0857075606.B.W

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

0 (-17.8) TH 13,310 13,30013,270 13,24013,200

CI

1.10 1.15 1.21 1.27 1.32

3 (-16.1) TH 13,760 13,74013,720 13,69013,650

CI

1.11 1.17 1.23 1.28 1.34

8 (-13.3) TH 14,830 14,82014,790 14,76014,720

CI

1.14 1.20 1.26 1.33 1.39

13 (-10.6) TH 15,950 15,930 15,910 15,87015,830

CI

1.17 1.24 1.31 1.38 1.44

18 (-7.8) TH 17,18017,160 17,130 17,09017,040

CI

1.20 1.28 1.35 1.43 1.50

23 (-5.0) TH 18,47018,450 18,420 18,38018,320

CI

1.24 1.32 1.40 1.48 1.56

28 (-2.2) TH 19,82019,800 19,770 19,72019,660

CI

1.27 1.36 1.45 1.54 1.62

33 (0.6) TH 21,22021,190 21,160 21,10021,040

CI

1.31 1.40 1.50 1.59 1.68

38 (3.3) TH 22,61022,580 22,540 22,48022,410

CI

1.34 1.44 1.54 1.65 1.74

43 (6.1) TH 24,08024,050 # 24,00023,94023,860

CI

1.38 1.49 1.60 1.70 1.81

48 (8.9) TH 25,58025,540 25,490 25,42025,340

CI

1.42 1.53 1.65 1.76 1.87

53 (11.7) TH 27,09027,050 27,00026,92026,830

CI

1.58 1.70 1.70 1.82 1.94

58 (14.4) TH 28,560 28,520 28,460 28,38028,280

CI

1.50 1.62 1.75 1.88 2.01

63 (17.2) TH 30,090 30,040 29,970 29,88029,780

CI

1.55 1.68 1.81 1.95 2.08

65 (18.3) TH 30,680 30,630 30,560 30,47030,360

CI

1.56 1.70 1.84 1.98 2.11

54

Outdoor Unit : CMH2472A
Indoor Unit : KMHS0972 × 3
Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

TH : Total Heating Capacity (BTU/h)

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.

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

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.

NOTE

RATING CAPACITY: 29,200 BTU/hAIR FLOW RATE: 847 CFM

OUTDOOR INDOOR

ENT. TEMP. °F (°C) AMBIENT TEMP. °F (°C)

W.B. 60 65 70 75 80

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

0 (-17.8) TH 16,550 16,540 16,510 16,470 16,420

3 (-16.1) TH 17,100 17,080 17,050 17,010 16,960

8 (-13.3) TH 18,390 18,370 18,340 18,300 18,250

13 (-10.6) TH 19,730 19,710 19,680 19,640 19,580

18 (-7.8) TH 21,200 21,180 21,150 21,100 21,040

23 (-5.0) TH 22,740 22,720 22,680 22,630 22,570

28 (-2.2) TH 24,330 24,310 24,270 24,220 24,150

33 (0.6) TH 25,970 25,950 25,900 25,850 25,770

38 (3.3) TH 27,580 27,560 27,510 27,450 27,100

43 (6.1) TH 29,280 29,250 # 29,200 29,130 27,660

48 (8.9) TH 30,990 30,950 30,900 30,830 28,150

53 (11.7) TH 32,690 32,650 32,600 31,800 28,540

58 (14.4) TH 34,320 34,280 34,220 32,140 28,820

63 (17.2) TH 35,970 35,930 35,860 32,330 28,990

65 (18.3) TH 36,600 36,560 36,110 32,370 29,010

55

Outdoor Unit : CMH2472A
Indoor Unit : XHS1872 + XMHS1272 + XMHS1272
Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

TH : Total Heating Capacity (BTU/h)

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.

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

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.

NOTE

MFC819:ETAR WOLF RIAh/UTB004,82 :YTICAPAC GNITAR

ROODNIROODTUO

ENT. TEMP.

o

F (

o

.PMET TNEIBMA)C

o

F (oC)

0857075606.B.W

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

0(-17.8) TH 16,030 16,04016,05016,040 16,020

CI

1.45 1.52 1.60 1.67 1.74

3(-16.1) TH 16,550 16,56016,57016,560 16,540

CI

1.47 1.54 1.62 1.69 1.77

8(-13.3) TH 17,790 17,81017,82017,810 17,790

CI

1.50 1.59 1.67 1.75 1.84

13 (-10.6) TH 19,08019,100 19,11019,100 19,090

CI

1.55 1.64 1.73 1.82 1.90

18 (-7.8) TH 20,500 20,52020,530 20,530 20,510

CI

1.59 1.69 1.79 1.89 1.98

23 (-5.0) TH 21,990 22,01022,020 22,010 22,000

CI

1.64 1.75 1.85 1.96 2.06

28 (-2.2) TH 23,530 23,56023,570 23,560 23,540

CI

1.69 1.80 1.92 2.03 2.14

33 (0.6) TH 25,130 25,15025,160 25,150 25,130

CI

1.74 1.86 1.99 2.11 2.23

38 (3.3) TH 26,700 26,73026,740 26,730 26,090

CI

1.79 1.92 2.05 2.18 2.26

43 (6.1) TH 28,360 28,390#28,400 28,39026,750

CI

1.85 1.98 2.12 2.26 2.26

48 (8.9) TH 30,050 30,07030,080 30,070 27,350

CI

1.90 2.05 2.20 2.34 2.26

53 (11.7)TH 31,740 31,770 31,78031,19027,890

CI

2.11 2.27 2.27 2.38 2.26

58 (14.4) TH 33,37033,400 33,41031,730 28,330

CI

2.02 2.18 2.35 2.38 2.26

63 (17.2) TH 35,05035,080 35,09032,170 28,700

CI

2.09 2.26 2.43 2.38 2.26

65 (18.3) TH 35,70035,730 35,74032,310 28,810

CI

2.12 2.29 2.47 2.38 2.26

56

Outdoor Unit : CMH3172A
Indoor Unit : KMHS0972 × 4
Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

TH : Total Heating Capacity (BTU/h)

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.

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

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.

NOTE

RATING CAPACITY: 32,000 BTU/hAIR FLOW RATE: 1,130 CFM

OUTDOOR INDOOR

ENT. TEMP. °F (°C) AMBIENT TEMP. °F (°C)

W.B. 60 65 70 75 80

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

0 (-17.8) TH 18,270 18,260 18,230 18,200 18,150

3 (-16.1) TH 18,860 18,850 18,820 18,790 18,740

8 (-13.3) TH 20,260 20,250 20,230 20,200 20,150

13 (-10.6) TH 21,720 21,710 21,680 21,650 21,600

18 (-7.8) TH 23,310 23,300 23,280 23,240 23,190

23 (-5.0) TH 24,970 24,960 24,940 24,910 24,850

28 (-2.2) TH 26,690 26,690 26,660 26,630 26,570

33 (0.6) TH 28,460 28,450 28,430 28,400 28,340

38 (3.3) TH 30,190 30,190 30,170 30,140 30,080

43 (6.1) TH 32,020 32,020 # 32,000 31,960 31,900

48 (8.9) TH 33,850 33,850 33,840 33,800 33,740

53 (11.7) TH 35,680 35,680 35,670 35,630 35,570

58 (14.4) TH 37,420 37,430 37,420 37,380 37,320

63 (17.2) TH 39,190 39,200 39,190 39,160 39,100

65 (18.3) TH 39,870 39,880 39,880 39,850 39,790

57

Outdoor Unit : CMH3172A
Indoor Unit : XMHS0972 × 4
Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

TH : Total Heating Capacity (BTU/h)

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.

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

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.

NOTE

MFC000,1:ETAR WOLF RIAh/UTB000,23 :YTICAPAC GNITAR

ROODNIROODTUO

ENT. TEMP.

o

F (

o

.PMET TNEIBMA)C

o

F (oC)

0857075606.B.W

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

0 (-17.8)TH18,20018,18018,14018,10018,040

CI

1.48 1.55 1.63 1.70 1.77

3 (-16.1) TH 18,800 18,78018,74018,69018,640

CI

1.50 1.57 1.65 1.73 1.80

8 (-13.3) TH 20,220 20,20020,16020,120 20,060

CI

1.54 1.62 1.70 1.79 1.87

13 (-10.6) TH 21,690 21,670 21,630 21,58021,520

CI

1.58 1.67 1.76 1.85 1.94

18 (-7.8)TH 23,300 23,28023,24023,190 23,120

CI

1.63 1.73 1.82 1.92 2.02

23 (-5.0) TH 24,980 24,96024,92024,860 24,790

CI

1.68 1.79 1.89 2.00 2.10

28 (-2.2) TH 26,720 26,69026,65026,600 26,520

CI

1.74 1.85 1.96 2.07 2.19

33 (0.6) TH 28,500 28,470 28,43028,370 28,290

CI

1.80 1.92 2.04 2.16 2.27

38 (3.3) TH 30,240 30,22030,17030,110 30,030

CI

1.86 1.98 2.11 2.24 2.36

43 (6.1) TH 32,070 32,050#32,000 31,940 31,850

CI

1.92 2.05 2.19 2.33 2.46

48 (8.9) TH 33,900 33,88033,830 33,760 33,680

CI

1.99 2.13 2.27 2.42 2.56

53 (11.7) TH 35,72035,700 35,65035,580 35,490

CI

2.21 2.36 2.36 2.51 2.66

58 (14.4) TH 37,450 37,430 37,380 37,31037,220

CI

2.14 2.30 2.45 2.61 2.77

63 (17.2) TH 39,190 39,170 39,120 39,05038,960

CI

2.23 2.39 2.56 2.72 2.89

65 (18.3)TH 39,860 39,840 39,790 39,72039,630

CI

2.27 2.43 2.60 2.77 2.94

58

6. ELECTRICAL DATA

6-1. Electric Wiring Diagrams

Outdoor Unit CMH1972A

BLK

REACTANCE

WHT

1 1

(1P)CONNECTOR

RV

4WAY

VALVE COIL

DEF

DEFROST

VALVE COIL

RELAY

6

WHT

1 1

(1P)

CONNECTOR

1

GRN/YEL

WHT

1

WHT

2

WHT

WHT

RED

1

RED

2

RED

1

RED

2

4

BLK

BLK

5

BLK

GRN/YEL

WHT

1

WHT

2

WHT

(2P)CONNECTOR

WHT

WHT

CRANKCASE

HEATER

WHT

BLK

1

BLK

2

(2P)CONNECTOR

BLK

BLK

1

BLK

2

(2P)CONNECTOR

BN THERMISTOR

YEL

4

YEL

3

YEL

2

YEL

1

BW THERMISTOR

AN THERMISTOR

YEL

4

YEL

3

YEL

2

YEL

1

AW THERMISTOR

THERMISTOR
OUTDOOR
BLK

4

BLK

3

YEL

2

YEL

1

THERMISTOR
COIL

BLK
BLK

SUPPLY
POWER

L2

L1

GND

1

2

TERMINAL PLATE

CORE

FERRITE

WHT

W

W

ACIN1

ACIN2

W

E

25A

WW

E1

W

L2 L1

W

HEATER0

W W W

RV1 RV0 HEATER1

W W

DEF1 DEF0

4
3

B-TH

2
1

4
3

A-TH

2
1

4
3
2
1

COMP

COIL/OUTDOOR

1
1

2 2

THERMISTOR
COMPRESSOR

WHT

W

W

SI-A

SI-B

MV0

MV1

W

SICOM2

KS10

CONTROLLER

KS22

KS23FM

U

WVWWW

UNIT

UNIT

A INDOOR

123456789

BLK

BLK

GRY
BLK
YEL
RED

ORG

GRY
BLK
YEL
RED

ORG

WHT

BLU

5

5

4

4

3

3

MV0

2

2

1

1

5

5

4

4

3

3

MV1

2

2

1

1

SI-C

W

SICOM2

4

4

3

3

CN01

2

2

MV2C-TH

1

1

6

6

5

5

4

4

CN02

3

3

2

2

1

1

TERMINAL PLATE

RED

5

5

4

4

3

3

2

2

1

1

5

5

4

4

3

3

2

2

1

1

WHT

BLU

4

RED

3

WHT

2

BLK

1

WHT

6

BLK

5

BLU

4

RED

3

WHT

2

BLK

1

EXPANSION BOARD

BLU

8

RED

WHT
BLK
BLU

RED

WHT
BLK

ORG

WHT
BRN
BLU

RED

WHT

7
6
5
4
3
2
1

7
6
5
4
3
2
1

1 2 3 4 5 6 7

CORE

FERRITE

8
7
6
5

CN03

4
3
2
1

(7P)CONNECTOR

ORG

WHT
BRN
BLU

RED

WHT

3

3

2

2

1

1

8
7
6
5
4
3
2
1

7
6
5
4
3
2
1

BLU

WHT
RED (PNK)

TO INDOOR UNIT

B INDOOR

BLK

MAGNETIC COIL

MAGNETIC COIL

W

5

5

4

4

3

3

2

2

1

1

4

4

3

3

2

2

1

1

FM

BLU

WHT
RED (PNK)

(3P)CONNECTOR

UNIT

C INDOOR

WHT

BRN

GRY

5

5

BLK

4

4

YEL

3

3

RED

2

2

ORG

1

1

YEL
YEL
YEL
YEL

FAN MOTOR

R/V

CM

S/U C/W

GND

MV2

SWITCH

MOTOR

COMPRESSOR

WHT

MAGNETIC COIL

BLK

11

22

CN THERMISTOR

11

(2P)CONNECTOR

CW THERMISTOR

(2P)CONNECTOR

WHT WHT

BLK
BLK

HIGH PRESSURE

OVERLOAD

RELAY(OLR)

22

WHT WHT

RED

8FA2-5257-59100-1

59

Outdoor Unit CMH2472A

BLK

REACTANCE

WHT

1 1

(1P)CONNECTOR

4WAY

VALVE COIL

DEFROST

VALVE COIL

1 1

RV

DEF

1

RELAY

6

GRN/YEL

WHT
WHT

WHT

(1P)

CONNECTOR

RED
RED

RED
RED

4

BLK

5

BLK

GRN/YEL

1

1

2

2

WHT

(2P)CONNECTOR

WHT

WHT

WHT

WHT

CRANKCASE

WHT

1

1

2

2

(2P)CONNECTOR

BLK

1

1

2

2

(2P)CONNECTOR

BN THERMISTOR
YEL
YEL
YEL
YEL

BW THERMISTOR

AN THERMISTOR
YEL
YEL
YEL
YEL

AW THERMISTOR
THERMISTOR

OUTDOOR
BLK
BLK
YEL
YEL

THERMISTOR
COIL

L1

BLK

1

TERMINAL PLATE

W

ACIN1

WW

E

W

E1

WHT
WHT

W

L2 L1

W

HEATER0

HEATER

BLK
BLK

W W W

RV1 RV0 HEATER1

BLK
BLK

W W

DEF1 DEF0

4

4

3

3

B-TH

2

2

1

1

4

4

3

3

A-TH

2

2

1

1

4

4

3

3

2

2

1

1

COIL/OUTDOOR

1
1

BLK
BLK

THERMISTOR
COMPRESSOR

SUPPLY

POWER

L2

2

WHT

W

ACIN2

25A

COMP

2 2

GND

FERRITE

WHT

CORE

W

W

SI-A

SI-B

MV0

MV1

W

SICOM2

KS10

CONTROLLER

KS22

KS23FM

U

WVWWW

UNIT

UNIT

A INDOOR

123456789

BLK

BLK

GRY
BLK
YEL
RED

ORG

GRY
BLK
YEL
RED

ORG

WHT

BLU

5

5

4

4

3

3

MV0

2

2

1

1

5

5

4

4

3

3

MV1

2

2

1

1

SI-C

W

SICOM2

SI-D

4

4

3

3

CN01

2

2

MV2C-TH

1

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Outdoor Unit CMH3172A

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8FA2-5257-89400-1

61

7. FUNCTIONS

7-1. Explanation of Functions

NOTE

The numerical values such as temperature, frequency, time and current in parentheses are an example
of CMH3172A and the values are different from the other models.

INITIAL

HEAT

Control/conditions

Breaker is ON. Power is supplied to the indoor and outdoor unit

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

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

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.

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.

Unit operation Explanation

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.

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).

The room temperature
has reached the desired
temperature.

The thermostat turns
OFF.

The indoor and outdoor
temperatures are high.

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

(Refor to Table 2 "Freguency control".)

The frequency then increases.

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

The indoor fan is stopped.

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.

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

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
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.

62

Control/conditions

Unit operation Explanation

HEAT

The thermostat turns ON. The unit operated before, and the temperature of

When defrost operation
begins, frost has formed
on the outdoor unit
(when the ambient air
temperature is low).

The indoor unit is stopped.

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

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.)

Operation is restarted
within 4 hours (only when
AUTO mode is selected
with the remote
controller).

Operation starts after 4
hours or more have
passed.

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

Starts operating in the same operating mode
(HEAT) and with the same temperature
settings as before operation was stopped.

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.

63

exchanger temperature (°F)

Outdoor heat

(- 4) 0

L2
L1

(21.2)
(19.4)

(-11.2)
(-13.0)

Outdoor air
temperature (°F)

Temperature of releasing

Defrost operation time

Heat exchanger
temperature for
releasing defrosting

*1 The temperature for releasing of defrosting is (68 °F) or higher when the

outdoor air temperature is less than 32 °F.

Less than 2 minutes 2 minutes or more

No releasing 57.2 °F or higher (*1)

COOL

Fig. 1

Control/conditions

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

The room temperature
has reached the
desired temperature.

The thermostat turns
OFF.

The thermostat turns
ON again.

Unit operation Explanation

The operation lamp illuminates.
The indoor fan operates at the set fan speed.
The outdoor unit stops.

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 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.

Table 1

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

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.

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.

Freeze prevention In order to protect against freezing, the

Stop All indicator lamps turn OFF. The indoor and

Operation is restarted
within 4 hours (only when
AUTO mode is selected
with the remote
controller).

Operation starts after 4
hours or more have
passed.

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.

Approximately 3 minutes later, if the
temperature of the indoor heat exchanger
is adove 46.4 °F, the system returns to its
original conditions.

outdoor units stop.
Starts operating in the same operating mode

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

New operating mode is determined based on
the temperature conditions at the time the
ON/OFF operation button is pressed.

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.

64

Frequency control

(1/f fluctuation fan)

Control/conditions

SENSOR
DRY

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

(Hz)

(25) Hz
(35) Hz
(45) Hz
(55) Hz

(senconds)

Outdoor air temperature is below 32 °F.

(120) seconds

(60) seconds
(60) seconds

(180) seconds

Table 2

Unit operation Explanation

The operation lamp illuminates.
The indoor fan operates at the set fan speed.
The outdoor unit stops.

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.)

Outdoor air temperature is 32 °F or higher.

(60) seconds
(30) seconds
(30) seconds
(90) seconds

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

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.

The room temperature is
59 °F or higher, and is
slightly too cold.

The room temperature is
below 59 °F.

The frequency then increases.

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.)

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.

(2)

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

(3)

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

Monitoring operation begins.

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 compressor operates on a 3-minutes ON,
6-minutes OFF cycle, to prevent the room
temperature from dropping too much.

When monitoring operation begins, the
compressor stops, and the indoor fan operates at
"LL" (very low) speed.

65

1/f fluctuation fan

250

200

150

(Step)

100

50

0

6-minute cycle

Fig. 2

66

< Low Ambient Cooling Operation >

When the outdoor air temperature reaches 57.2 °F (14 °C ) or less during the cooling operation,
the operation mode is switched to low ambient cooling operation.
When the mode is switched from cooling opration to low ambient cooling operation,
the compressor is stopped for 150 seconds temporarily.
When the mode has been switched to low ambient cooling operation,
the outdoor fan speed is lowered as the outdoor air temperature falls.

Outdoor fan speed [ rpm ]

When the outdoor air temperature reaches 62.6 °F (17 °C ) or more during the low ambient
cooling operation, the operation mode is switched to cooling operation.
The following protective actions are available to prevent the compressor from operating
with abnormal loads.
At that time, they initiate thermo-off ( stopping the outdoor unit ) of the air conditioner.

32 °F ( °C )

Outdoor air temperature

Outdoor air temp.
°F ( °C )

14 (-10)

8.6 (-13)

Compressor

Indoor fan

ON ON

OFF

ON

67

7-2. Protective Functions

NOTE

The numerical values such as temperature, frequency, time and current in parentheses are an example
of CMH3172A and the values are different from the other models.

7-2-1. Defrost Detection and Release

(1) Non-stop defrosting

Defrosting sequence 4-way valve ON

Heating operation

Frost detection

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.

L2
L1

Outdoor heat

(- 4) 0

Outdoor air
temperature (°F)

( 21.2)
( 19.4)

(-11.2)
(-13.0)

exchanger temperature (°F)

NOTE

Non-stop defrosting

Releasing of defrosting

Compressor
Outdoor fan
Solenoid valve

(for hot gas bypass)
Indoor fan

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
Heat exchanger

temperature for
releasing defrosting

*1 The temperature for releasing of defrosting is (68 °F) or higher when the

outdoor air temperature is less than 32 °F.

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

OFF

Less than 2 minutes 2 minutes or more

No releasing 57.2 °F or higher (*1)

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.

68

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

Frequency Current

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.)

Stops operation

Approx.3 minutes

(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.

(20A)

HEAT
Point C (peak cut trip)
Point B (Hz reduction)
Point A (Hz increase prohibit) (16.6)

NOTE

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

(20.0) (20.0)
(17.0) (17.0)
(16.6)

COOL

(2) Current control

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

Current(A)

Trip

Hz reduction

Hz increase

prohibit

(16)

(15.6)

0

Example of operation during cooling

Hz increase prohibit

(30)

Hz reduction
Hz increase prohibit

Hz reduction

Frequency (Hz)

69

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)

Increase

No control

Compressor discharge temperature

(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.

prohibit range
(Hz reduction)

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

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

(1)

The compressor thermostat is OFF.

(2)

Frequency reduction for indoor high-load control has occurred.

(3)

The outdoor air temperature is above 59 °F.

(4)

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

(5)

70

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.

71

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

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)

Error Contents

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

72

8-3. Checking the Outdoor System

8-3-1. Checking the outdoor unit

No.

1

Apply 220 V AC between terminals L1 and L2 on the

•

Work procedure

outdoor unit terminal plate.

Short-circuit the T-RUN terminal to the COM terminal

•

2

of TEST/T-RUN terminals.

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

Connect a dummy resistor of 39 k ohm to the outdoor

• Non-stop defrost

coil temperature sensor connector.

Work procedure

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.)

Check items (unit operation)

Indoor fan

CM

Solenoid valve

(for hot gas

bypass)

Setting Setting

30 sec.

LL

Stop

(80 Hz)

ON

10 sec.5 sec.

ONOFF OFF

73

Outdoor fan

Defrost start Release

•

The maximum length of defrost operation is 12

OFFON

ON

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.

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.

Problems

Inspection

points

Self-Diagnostics check

Indoor controller
(control unit)

Indoor fan motor

Room temperature
sensor

Heat exchanger
temperature sensor

Indoor unitOutdoor unit

Inter-unit cable

Indoor unit

Indoor unit does not operate.

Operation lamp blinking.

Operation lamp does not illuminate.

Indoor fan dose not turn.

Outdoor unit Others

Outdoor unit does not operate.

Outdoor fan dose not turn.

4-way valve does not operate.

The compressor (only) does not

operate.

The compressor stops on occasion.

The compressor speed does not

increase.

The outdoor air temperature is high,

however defrost operation occurs.

Defrost operation does not occur.

The electric expansion valve does

not operate.

Does not cool or cooling

No. of
Inspection
Points for
Each part

performance is inadequate.

Does not heat or heating

performance is inadequate.

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

(1)

(2)
(3)

(4)

(5)

(6)

(7)

Branch tubing
temperature sensor

(8)

74

Problems

Inspection

points

Indoor unit

Indoor unit does not operate.

Operation lamp blinking.

Operation lamp does not illuminate.

Indoor fan dose not turn.

Outdoor unit Others

Outdoor unit does not operate.

Outdoor fan dose not turn.

4-way valve does not operate.

The compressor (only) does not

operate.

The compressor stops on occasion.

The compressor speed does not

increase.

The outdoor air temperature is high,

however defrost operation occurs.

Defrost operation does not occur.

The electric expansion valve does

not operate.

Does not cool or cooling

No. of
Inspection
Points for
Each part

performance is inadequate.

Does not heat or heating

performance is inadequate.

Breaker

Refrigerant gas pressure

Others

8-4-2. Inspection Points for Each Part

(1) Outdoor control circuit board

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

NOTE

(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.

Do not remove or insert the outdoor control circuit board connector when power is being supplied to it.
(The controller will be damaged.)

(9)

(10)

(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.

75

(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

Check the illumination

of the red Power Lamp.

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.

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

When the power is turned ON, the needle will move in the

Voltage varies

Check the coil resistance.

0 ohm

Replace the coil.

No temperature change Temperature changes

Replace the electric

expansion valve.

Approx. 46 +/– 4 ohm

Open and close the

electric expansion valve

by hand to check it.

This part is normal.

following seguence in approximately 10 to 20 seconds for
each point.

*1

Check elsewhere.

Model No. Sequence
CMH1972A
CMH2472A

CMH3172A

Check the resistance between the gray lead
wire and the other wires.
Resistance is OK if it is 46 + / – 4ohm at 68 °F

MV0 MV1

MV0 MV1 MV2 MV3

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.

MV2

*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.)

76

(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.

77

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:

[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)

(Diagnostic results)

(Reference) DC motor connector pin arrangement

(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.

* 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

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

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)

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.

(Replace the controller .)

Normal value

[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.

78

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.

79

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.

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)

Size of flare

Tubing precautions

Specification A

Flare tool for R410A Conventional flare tool (for R22)

0 to 0.0196"

(0 to 0.5 mm)

D

Flare tool for R410A

A

Conventional flare tool (R22)

D

0.0472"

(1.2 mm)

Spacer

A

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.

80

9-3. Tools Specifically for R410A

For servicing, use the following tools for R410A

Tool Distinction Tool Name

Gauge manifold
Charging hose
Gas leak detector
Refrigerant cylinder
Charging cylinder
Refrigerant recovery unit

Tools specifically for R410A

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

Tools which can be com­monly used for R22,
R407C, and R410A

CAUTION

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"

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.

Torque wrench
Cutter, reamer
Welding tool, nitrogen gas cylinder

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.

81

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

(1) Recover refrigerant

OK

(2) Replace compressor

OK

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

(3) Check for sealing

OK

(4) Evacuation

OK

(5) Recharge

More than 33 ft. (10 m)

More than 15 minutes

82

(5) Recharging

Configuration and characteristics of cylinders

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.

Valve

Liquid

Single valve

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

Fig. 1

Valve

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)

Charging

cylinder

Open

Liquid

Single valve (with siphon tube)

Charge with cylinder in normal position.

Fig. 2

NO!

Liquid

Refrigerant

cylinder

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

Fig. 3

83

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.

(1) Detect leaks

OK

(2) Recover refrigerant

OK

(3) Weld leaking points

OK

(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

(6) Recharging

Less than 33 ft. (10 m)

More than 10 minutes

(4) Check for sealing

OK

(5) Evacuation

OK

(6) Recharge

More than 33 ft. (10 m)

More than 15 minutes

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

84

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.

85

APPENDIX A

INSTALLATION INSTRUCTIONS

CMH1972A
CMH2472A
CMH3172A

(II-852-6-4190-507-00-0)

A-1

CAUTION

For Outdoor Unit

INSTALLATION INSTRUCTIONS

– Inverter Multi Split System Air Conditioner –

This air conditioner uses the new refrigerant R410A.

NOTE

Contents

IMPORTANT!

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

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

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

2-1. Indoor Unit
2-2. Connecting Indoor Units
2-3. Outdoor Unit
2-4. Baffle Plate for the Outdoor Unit
2-5. Outer Dimensions of Outdoor Unit
2-6. Diagram of Outdoor Unit Installation

3. INSTALLATION PROCESS .............................. 15

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

4. AIR PURGING................................................... 18

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

Refrigerant service valve size = 5/16"

Page

COOL/DRY/HEAT Model

Model Combinations

Combine indoor and outdoor units only as listed
below.

Indoor Unit Outdoor Unit

KMHS0772 CMH1972A
KMHS0972 CMH2472A
KMHS1272 CMH3172A
KMHS1872
KMHS2472
XMHS0972
XMHS1272
XHS1872

Power Source:
60 Hz, single-phase, 230 / 208 VAC

Be sure to connect indoor and outdoor units
only in combinations that are listed in the
combination table(s) included in the outdoor
unit package.
Connecting any other model may result in
operation failure and malfunction.

Combination example

Indoor unit B

Indoor unit A

Indoor unit C

5. WIRING INSTRUCTIONS ................................ 21

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

6. TEST RUN......................................................... 25

7. CONNECTING A HOME AUTOMATION

DEVICE ............................................................. 26

8. INSTALLATION CHECK SHEET ...................... 26

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

85264190507000 © SANYO 2010

Outdoor unit

Indoor unit D

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 North America Corporation In Canada
Commercial Solutions Division SANYO Canada Inc.
2055 Sanyo Ave., San Diego 201 Creditview Road, Woodbridge
CA 92154, U.S.A. Ontario, L4L 9T1, Canada

IMPORTANT!

CAUTION

WARNING

WARNING

CAUTION

Please Read Before Starting

When Installing…

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

Carefully read this instruction booklet before beginning.

G

Follow each installation or repair step exactly as shown.

G

Observe all local, state, and national electrical codes.

G

Pay close attention to all warning and caution notices
given in this manual.

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

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

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

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.

…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

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

• 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

CAUTION

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

5. Carpenter’s level

6. Sabre saw or key hole saw

1-2. Accessories Supplied with Unit

Table 1

Parts Figure Q’ty Parts Figure Q’ty Parts Figure Q’ty

Hex wrench Cushion rubber 4

Labels for inter-unit
cable and tube

ABCD

7. Hacksaw

8. Core bits

9. Hammer

10. Drill

11. Tube cutter

12. Tube flaring tool

1

4 each

Reducer
(3/8" 1/2")

CMH1972A

13. Torque wrench

14. Adjustable wrench

15. Reamer (for deburring)

16. Vacuum pump (For R410A)

17. Manifold valve

Reducer
(1/2" 3/8")

1

CMH2472A
CMH3172A

Packed in the outdoor unit.

1
2

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 air conditioning workshop.

2. 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).

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

1-4. Type of Copper Tube and Insulation Material

Refer to 5.Wiring Instructions for details.

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"

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

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

Table 2

Model

KMHS0772 / 0972 / 1272 1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)
KMHS1872 1/4" (6.35 mm) 0.0314" (0.8 mm) 1/2" (12.70 mm) 0.0314" (0.8 mm)
KMHS2472 1/4" (6.35 mm) 0.0314" (0.8 mm) 5/8" (15.88 mm) 0.0393" (1.0 mm)
XMHS0972 / 1272 1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)
XHS1872 1/4" (6.35 mm) 0.0314" (0.8 mm) 1/2" (12.70 mm) 0.0314" (0.8 mm)

Outer Dia. Thickness Outer Dia. Thickness

Narrow Tube Wide Tube

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

3

2. Installation Site Selection

Drain hose

Indoor unit

Outside drainage

INDOOR
UNIT (1)

INDOOR
UNIT (4)

INDOOR
UNIT (3)

INDOOR
UNIT (2)

Tubing length (L1)

L2

L3

L4

H2

H3

H4

OUTDOOR
UNIT

Elevation
difference (H1)

WARNING

CAUTION

3.3 ft.

(1m)

(1m)

(1m)

3.3 ft.

(1m)

3.3 ft.

3.3 ft.

3.3 ft.

(1m)

2-1. Indoor Unit

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.

Fig. 1

For wall-mounted units

G placing or allowing any obstructions near the air conditioner

inlet or outlet.

G installing in rooms that contain instant-on (rapid-start)

fluorescent lamps.(These may prevent the air conditioner
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 air-conditioned. (High on a wall
is best for wall-mounted types.)

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. 2a or 2b)

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.

Fig. 3a

2" (5 cm)

min.

For ceiling-mounted cassette units

• Air delivery from a ceiling­mounted cassette unit will
be degraded if the distance
from the floor to the ceiling
is greater than 10 ft. (3 m).

• For stable operation of the
air conditioner,do not install
wall-mounted units less
than 5' (1.5 m) from floor
level. (Fig. 3b)

4

6" (15 cm)
min.

Front View

Fig. 2a

Fig. 2b

Minimum height
from floor level

Fig. 3b

2" (5 cm)

Indoor unit

5' (1.5 m)

Floor level

min.

Wall

G install the indoor unit more than 3.3' (1 m) aw a y from an y

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

Max. Max. Allowable Total Limit of Limit of Elevation Required Amount

Model Tubing Length at shipment (L1+L2+L3) or (H1, H2, H3, H4) Refrigerant

CMH1972A 82 150 (L1+L2+L3) 150 (L1+L2+L3) 50 —
CMH2472A 82 150 (L1+L2+L3+L4) 200 (L1+L2+L3+L4) 50 0.22
CMH3172A 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.

Allowable Tubing Length Total Tubing Length Difference of Additional

per unit (L1+L2+L3) or (L1+L2+L3+L4) (ft.) (oz./ft.)*

(ft.) (L1+L2+L3+L4) (ft.)

(ft.)

5

Union 1/2"(12.70mm)

1/2"(12.70

mm

)

Flare 3/8"(9.52

mm

)

A joint for connecting tubes of
different sizes
(3/8"(9.52mm) 1/2"(12.70mm)) Supplied Reducer

1/4"(6.35mm)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

C

B

A

Outdoor unit Indoor unit

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

(KMHS1872)
(XHS1872)

3/8"(9.52mm)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

C

B

A

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

D

Outdoor unit Indoor unit

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

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

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

1/2"(12.70mm)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

(1/2"(12.70

mm

) 3/8"(9.52mm)) Supplied Reducer

3/8"(9.52mm)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52mm)

3/8"(9.52

mm

)

C

B

A

Outdoor unit Indoor unit

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

2-2. Connecting Indoor Units

Figures (4a) – (4k) show the different types of indoor unit connections, including the use of a reducer.
To select the required indoor unit to be connected, refer to the Combination Table that was included in the
outdoor unit package.

(1) Connecting indoor unit for CMH1972A

(A)

Fig. 4a

(B)

(2) Connecting indoor unit for CMH2472A

(A)

Fig. 4b

Fig. 4c

6

(B)

C

B

A

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

D

Outdoor unit Indoor unit

(KMHS1872)
(XHS1872)

1/2"(12.70mm)

1/2"(12.70

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

Locally purchased

C

B

(KMHS1872)
(XHS1872)

D

Outdoor unit Indoor unit

Union 1/2"(12.70

mm

)Flare 3/8"(9.52mm)

(3/8"(9.52

mm

) 1/2"(12.70mm))

1/2"(12.70mm)

3/8"(9.52

mm

)

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

A

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

(KMHS1872)
(XHS1872)

1/2"(12.70

mm

)

1/2"(12.70

mm

)

1/4"(6.35

mm

)

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

(1/2"(12.70

mm

) 5/8"(15.88mm)) Locally purchased

C

B

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

D

Outdoor unit Indoor unit

(KMHS2472)

1/2"(12.70mm)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

5/8"(15.88

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

A

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

(C)

Fig. 4d

(D)

Fig. 4e

Fig. 4f

7

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

(1/2"(12.70

mm

) 3/8"(9.52mm)) Supplied Reducer

D

C

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

Outdoor unit Indoor unit

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

1/2"(12.70mm)

1/2"(12.70

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

A

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

B

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

(3) Connecting indoor unit for CMH3172A

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

(1/2"(12.70

mm

3/8"(9.52mm)) Supplied Reducer

A

Outdoor unit Indoor unit

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52mm)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

B

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

C

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

1/2"(12.70

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

D

(KMHS1872)
(XHS1872)

1/2"(12.70

mm

)

1/2"(12.70

mm

)

1/4"(6.35

mm

)

A

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

B

Outdoor unit Indoor unit

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

D

C

(KMHS1872)
(XHS1872)

(KMHS1872)
(XHS1872)

1/2"(12.70

mm

)

1/2"(12.70

mm

)

1/2"(12.70

mm

)

1/2"(12.70

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

(A)

(B)

Fig. 4g

(C)

Fig. 4h

Fig. 4i

8

(D)

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

(1/2"(12.70

mm

) 5/8"(15.88mm))Locally purchased

C

D

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

Outdoor unit Indoor unit

(KMHS2472)

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

(1/2"(12.70

mm

) 3/8"(9.52mm))Supplied Reducer

1/2"(12.70mm)

1/2"(12.70

mm

)

5/8"(15.88

mm

)

3/8"(9.52

mm

)

A

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

B

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

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

(1/2"(12.70

mm

) 5/8"(15.88mm)) Locally purchased

B

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

A

Outdoor unit Indoor unit

(KMHS0772,KMHS0972,KMHS1272)
(XMHS0972,XMHS1272)

3/8"(9.52mm)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

3/8"(9.52

mm

)

1/4"(6.35

mm

)

1/4"(6.35

mm

)

C

(KMHS1872)
(XHS1872)

1/2"(12.70

mm

)

1/2"(12.70

mm

)

1/4"(6.35

mm

)

D

(KMHS2472)

1/2"(12.70

mm

)

5/8"(15.88

mm

)

1/4"(6.35

mm

)

(E)

Fig. 4j

Fig. 4k

9

2-3. Outdoor Unit

NOTE

Outdoor unit

Hot air

Heat source

Exhaust fan

NO

Min.

7' (2 m)

Min.

7' (2 m)

Ground

Obstacle

Obstacle above

Air discharge

Min. 8" (20 cm)

Air intake

CAUTION

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 install in a location where at least two sides are unob-

structed, so that the flow of air at the intake port or
exhaust port is not blocked, and so that sufficient
space is ensured for maintenance to be carried out
without trouble.In general the top also must be unob­structed. (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)

Fig. 5a

Air intake Min. 8" (20 cm)

Min.

4" (10 cm)

Air discharge

Valve
side
Min. 10"
(25 cm)

Min.
1’8" (50 cm)

Fig. 5b

Drain holes

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).

2-4. Baffle Plate for the Outdoor Unit

It is recommended to use baffle plates.
When the outdoor unit is installed in a position exposed to

strong wind (such as seasonal winds with low air tempera­ture in winter), baffle plates must be installed on the outdoor
unit. (Fig. 5f)

This unit is designed so that the fan of the outdoor unit runs
at low speed when the air conditioner is operated at low
outdoor air temperatures.When the outdoor unit is exposed
to strong wind, the system pressure drops because of the
freeze protector.

Install a pair of windbaffle plates at the front and back of the
outdoor unit if it will be subject to strong wind during the
winter.(Figs. 5f, 5g, 5h, 5i, and 5j)

Air intake

Concrete
or equal

About 16" (40 cm)

Wind

Back

Fig. 5c

Anchor bolts
(4 pcs.)

Min. 6" (15 cm)

About 6" (15 cm)

Fig. 5d

Cushion rubber

Fig. 5e

Air intake baffle

Front

Wind

10

Air discharge baffle

No air intake baffle required on this side.

Fig. 5f

(1) Recommended dimensions of the baffle plates

D

F

E

C

J

H

L

I

B

K

Q

R

A

G

O

(3- 6.5 mm)

3- 1/4"

(2- 6 mm)

2- 15/64"

A

B

H

C

E

F

K

I

J

G

G

D

(4- 6.5 mm)

4- 1/4"

Air Intake Baffle

Air Discharge Baffle

Fig. 5g

Fig. 5h

For Air Intake

Model

CMH1972A,
CMH2472A

CMH3172A

Dimensions

(inch)
(mm) 640 20 50 635 270 270 10 20 15 657 7.5 10 150 20 20
(inch)
(mm) 640 20 35 785 350 350 10 20 15 807 7.5 10 150 20 20

ABCDE FGHI JKLO QR

25-3/16 25/32 1-31/32 25 10-5/8 10-5/8 25/64 25/32 19/32 25-7/8 19/64 25/64 5-29/32 25/32 25/32

25-3/16 25/32 1-3/8

30-29/32 13-25/32 13-25/32

25/64 25/32 19/32

31-25/32

19/64 25/64 5-29/32 25/32 25/32

For Air Discharge

Dimensions

Model

CMH1972A,
2472A, 3172A

Material to be used: Metal plate with corrosion protection treatment
Plate thickness: 0.0394 to 0.0472" (1.0 to 1.2 mm)

(inch)
(mm) 560 585 350 150 490 35 55 465 60 85 25

(2) Parts required (field supply except for screws)

Air Intake Baffle

Baffle plate 1
Screw 5/32 × 15/32" (4 × 12 mm) tapping 2 Attached to outdoor unit
Bolt 15/64 × 19/32 – 25/32" (M6 × 15 – 20 mm) 3
Nut 15/64" (M6) 3
Washer 3
Spring washer 3

Item Q’ty Remarks

ABCDE FGHI JK

22-1/16 23-1/32 13-25/32 5-29/32 19-9/32 1-3/8 2-5/32 18-5/16 2-3/8 3-11/32 31/32

Air Discharge Baffle

Baffle plate 1
Bolt 15/64 × 13/32 – 19/32" (M6 × 10 – 15 mm) 4
Nut 15/64" (M6) 4
Washer 4
Spring washer 4

Item Q’ty Remarks

11

(3) Installation procedure

Panel top

Panel front

Panel side R

Panel side L

Panel side R

Panel top

Panel front

Panel side L

1. Air Intake Baffle

(1) Left side

1. Remove the top panel from the unit.

2. Remove the panel side L, and drill 3 holes of ø1/4 inch
(6.5 mm) at the prescribed position.

3. Install the windbaffle on the unit using field supply bolts
and nuts.

4. Recommended bolts to be used are 15/64" (M6 ISO
standard), and the recommended length of the bolts is
between 19/32 – 25/32 inch (15 – 20 mm).

5. Use washers and spring washers to tightly fasten the
windbaffle to the unit.

(2) Right side

1. Remove the top panel from the unit.

2. Use 2 preholes on the panel side R to install the baffle
plate.

3. Remove the panel side R from the unit by removing the
screws.These screws are used in step 4 below.

4. Put (sandwich) the windbaffle between the unit and the
panel side R, then install the windbaffle on the unit using
the above screws. Be careful not to damage the screw
holes.

2. Air Discharge Baffle

1. Remove the panels front, top, side L and R from the
unit and drill 4 holes of ø1/4 inch (6.5 mm) at the
prescribed positions.

2. Install the windbaffle on the unit using field supply
bolts and nuts.

3. Recommended bolts to be used are 15/64" (M6 ISO
standard), and the recommended length of the bolts
is between 13/32 – 19/32 inch (10 – 15 mm).

4. Use washers and spring washers to tightly fasten the
windbaffle to the unit.

Fig. 5i Fig. 5j

NOTE

G In order to prevent contact of the bolts and heat exchanger and other parts inside the unit, install the windbaffle using

bolts from inside the unit and fasten the bolts with nuts from outside the unit.

G When the windbaffle is installed on the unit, the unit has higher wind resistance. In order to prevent the unit from

falling over, anchor the legs of the unit using anchor bolts (or similar method).

(4) Precautions for installation

1. Be sure not to damage painted surfaces.

2. Finish the edges of the windbaffle to avoid cuts or injury.

3. Drilling of holes must be carefully done so that no damage is caused to external or internal parts of the unit.
Particular care must be taken that drill chips do not drop into the unit.

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