Technibel MCAF98MR5I Technical & Service Manual

TECHNICAL &

SERVICE MANUAL

INDOOR UNIT : MCAF78MR5I

MCAF98MR5I

MCAF128MR5I

MCAF188R5I

MCAF248R5I

FILE NO.

Destination: Europe

DC INVERTER MULTI-SYSTEM AIR CONDITIONER

Capacity

2.20 kW

2.65 kW

3.50 kW

5.15 kW

7.10 kW

Indoor Model No.

MCAF78MR5I

MCAF98MR5I

MCAF128MR5I

MCAF188R5I

MCAF248R5I

Product Code No.

MCAF78MR5IAA

MCAF98MR5IAA

(1 852 349 58)

(1 852 349 59)

MCAF128MR5IAA

MCAF188R5IAA

MCAF248R5IAA

(1 852 349 60)

(1 852 349 61)

(1 852 349 62)

Wall Mounted Type Indoor Unit

MCAF78MR5I

MCAF98MR5I

MCAF128MR5I

AIR CONDITIONER

< Applicable Multi-Outdoor Units >

GRF148MR5I (2-room multi unit)




NOTE

For details about the combinations, refer to "Unit Combination Table" in the T. Service

Manual for the Multi Outdoor Units.

MCAF188R5I

MCAF248R5I

AIR CONDITIONER

RoHS

• This product does not contain any hazardous substances prohibited by the RoHS Directive.

WARNING

• You are requested to use RoHS compliant parts for maintenance or repair.

• You are requested to use lead-free solder.

F-GAS REGULATION (EC) No 842 / 2006

Do not vent R410A into atmosphere : R410A is a fluorinated greenhouse gas, covered by Kyoto Protocol, with a Global Warming Potential (GWP) = 1975.

REFERENCE NO.

SM

700739

Important!

Please Read Before Starting

This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.

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

Carefully read this instruction booklet before beginning.

Follow each installation or repair step exactly as shown.

Observe all local, state, and national electrical codes.

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

WARNING

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

CAUTION

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

If Necessary, Get Help

These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sales/service outlet or your certified dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS

WARNING When Wiring

ELECTRICAL SHOCK CAN CAUSE

SEVERE PERSONAL INJURY OR DEATH.

ONLY A QUALIFIED, EXPERIENCED

ELECTRICIAN SHOULD ATTEMPT TO

WIRE THIS SYSTEM.

•

• Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked.

Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and

•

•

• inadequate grounding can cause accidental injury or death.

Ground the unit following local electrical codes.

Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.

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

When Transporting

Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers.

When Installing

In a Ceiling or Wall

Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary to construct a strong wood or metal frame to provide added support.

In a Room

Properly insulate any tubing run inside a room to prevent

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

In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration.

In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle.

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

Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents.

When Connecting Refrigerant Tubing

•

• Use the flare method for connecting tubing.

Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leak-free connection.

• Check carefully for leaks before starting the test run.

When Servicing

• Turn the power off at the main power box (mains) before

• opening the unit to check or repair electrical parts and wiring.

Keep your fingers and clothing away from any moving

• parts.

Clean up the site after you finish, remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced.

Others

CAUTION

• Ventilate any enclosed areas when installing or testing the refrigeration system. Escaped refrigerant gas, on contact with fire or heat, can produce dangerously toxic

• gas.

Confirm upon completing installation that no refrigerant gas is leaking. If escaped gas comes in contact with a stove, gas water heater, electric room heater or other heat source, it can produce dangerously toxic gas.

2

Table of Contents

APPLICABLE MULTI-OUTDOOR UNITS .....................................................................................

Page

4

1. OPERATING RANGE ...................................................................................................................

5

2. SPECIFICATIONS

2-1.

Unit Specifications .............................................................................................................

2-2.

Major Component Specifications .......................................................................................

2-3.

Other Component Specifications .......................................................................................

6

11

16

3. DIMENSIONAL DATA .....................................................................................................................

17

4. REFRIGERANT FLOW DIAGRAM

4-1.

Refrigerant Flow Diagram ...................................................................................................

19

5. PERFORMANCE DATA

5-1.

Air Throw Distance Charts .................................................................................................

20

6. ELECTRICAL DATA

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

25

7. FUNCTIONS

7-1.

Operation Functions

7-2.

Protective Functions

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

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

27

29

8. TROUBLESHOOTING

8-1.

Precautions before Performing Inspection or Repair ...........................................................

8-2.

Method of Self-Diagnostics .................................................................................................

8-3.

Checking the Indoor and Outdoor Units ..............................................................................

8-4.

Trouble Diagnosis of Fan Motor ...........................................................................................

8-5.

Noise Malfunction and Electromagnetic Interference ..........................................................

30

30

32

33

34

APPENDIX A INSTRUCTION MANUAL

(MCAF78MR5I, MCAF98MR5I, MCAF128MR5I) .....................................................

A-1

APPENDIX B INSTRUCTION MANUAL

(MCAF188R5I, MCAF248R5I) ..................................................................................

A-2

APPENDIX C INSTALLATION INSTRUCTIONS .............................................................................

A-3

3

APPLICABLE MULTI-OUTDOOR UNITS

Multi-Outdoor Unit 2-Room 2-Room 4-Room 4-Room

GRF148MR5I GRF198MR5I GRF248MR5I GRF318MR5I

Indoor Unit

MCAF78MR5I

MCAF98MR5I

YES

YES

YES

YES

YES

YES

YES

YES

MCAF128MR5I

MCAF188R5I

MCAF248R5I

YES

NO

NO

YES

YES

NO

YES

YES

YES

YES

YES

YES

4

1. OPERATING RANGE

Cooling

Heating

Temperature

Maximum

Minimum

Maximum

Minimum

Indoor Air Intake Temp.

32

°

C D.B. / 23

°

C W.B.

19 ° C D.B. / 14 ° C W.B.

27

°

C D.B.

16

°

C D.B.

Outdoor Air Intake Temp.

43

°

C D.B.

19 ° C D.B.

24

°

C D.B. / 18

°

C W.B.

– D.B. / – 15 °

C W.B.

5

2. SPECIFICATIONS

2-1. Unit Specifications

Indoor Unit MCAF78MR5I

Type

Power Source

Voltage Rating

Performance

Capacity

Air Circulation (High)

Moisture Removal (High)

Electrical Rating

Available Voltage Range

Running Amperes

Power Input kW

BTU/h m 3 /h

Liters/h

Features

Controls / Temperature Control

Control Unit

Timer

Fan Speeds

Airflow Direction (Indoor)

Air Filter

Refrigerant

Operation Sound Indoor : Hi/Me/Lo/Qt*

(*Qt = Quiet mode)

Refrigerant Tubing Connections

Refrigerant Narrow tube

Tube Diameter Wide tube

Refrigerant Tube Kit / Accessories

Indoor

Horizontal

Vertical dB-A mm (in.) mm (in.)

V

A

W

Dimensions & Weight

Unit Dimensions

Package Dimensions

Weight

Height

Width

Depth

Height

Width

Depth

Net

Shipping

Shipping Volume mm mm mm mm mm mm kg kg m 3


220 to 240V Single-Phase 50Hz

230V

Cooling

2.2

7,500

410

1.3

Cooling

Heating

2.5

8,500

460

-

Heating

198 to 264

0.11

25

0.11

25

Microprocessor / I.C. Thermister

Wireless Remote Control Unit

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

Auto and 3 steps

Manual

Auto

Washable, Anti-Mold

R410A

33 / 30 / 27 / 23 33 / 30 / 27 /23

Flare Type

6.35 (1/4)

9.52 (3/8)

Optional / Air Clean Filter

Indoor Unit

285

825

189

255

900

350

9.0

11.0

0.08

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

6


Type

Power Source

Voltage Rating

Performance

Capacity





Running Amperes

Power Input kW

BTU/h m 3 /h

Liters/h

Features


Control Unit

Timer

Fan Speeds


Air Filter

Refrigerant


(*Qt = Quiet mode)





Indoor

Horizontal


V

A

W


Unit Dimensions

Package Dimensions

Weight

Height

Width

Depth

Height

Width

Depth

Net

Shipping




230V

Cooling

2.65

9,000

440

1.6

Cooling

Heating

3.6

12,300

480

-

Heating

198 to 264

0.15

35

0.15

35




Auto and 3 steps

Manual

Auto

Washable, Anti-Mold

R410A

34 / 31 / 28 / 23 34 / 31 / 28 / 23

Flare Type

6.35 (1/4)

9.52 (3/8)


Indoor Unit

285

825

189

255

900

350

9.0

11.0

0.08


7


Type

Power Source

Voltage Rating

Performance

Capacity





Running Amperes

Power Input kW

BTU/h m 3 /h

Liters/h

Features


Control Unit

Timer

Fan Speeds


Air Filter

Refrigerant


(*Qt = Quiet mode)





Indoor

Horizontal


V

A

W


Unit Dimensions

Package Dimensions

Weight

Height

Width

Depth

Height

Width

Depth

Net

Shipping




230V

Cooling

3.5

11,900

480

2.0

Cooling

Heating

4.2

14,300

500

-

Heating

198 to 264

0.15

35

0.15

35




Auto and 3 steps

Manual

Auto

Washable, Anti-Mold

R410A

36 / 33 / 29 / 25 34 / 31 / 29 / 25

Flare Type

6.35 (1/4)

9.52 (3/8)


Indoor Unit

285

825

189

255

900

350

9.0

11.0

0.08


8

Indoor Unit MCAF188R5I

Type

Power Source

Voltage Rating

Performance

Capacity





Running Amperes

Power Input kW

BTU/h m 3 /h

Liters/h

Features


Control Unit

Timer

Fan Speeds


Air Filter

Refrigerant


(*Qt = Quiet mode)





Indoor

Horizontal


V

A

W


Unit Dimensions

Package Dimensions

Weight

Height

Width

Depth

Height

Width

Depth

Net

Shipping




230V

Cooling

5.15

17,600

850

2.3

Cooling

Heating

6.0

20,500

850

-

Heating

198 to 264

0.15

35

0.15

35




Auto and 3 steps

Manual

Auto

Washable, Anti-Mold

R410A

41 / 38 / 34 / 28 40 / 37 / 34 / 28

Flare Type

6.35 (1/4)

12.7 (1/2)


Indoor Unit

298

1,065

218

289

1,140

379

12.0

15.0

0.12


9


Type

Power Source

Voltage Rating

Performance

Capacity





Running Amperes

Power Input kW

BTU/h m 3 /h

Liters/h

Features


Control Unit

Timer

Fan Speeds


Air Filter

Refrigerant


(*Qt = Quiet mode)





Indoor

Horizontal


V

A

W


Unit Dimensions

Package Dimensions

Weight

Height

Width

Depth

Height

Width

Depth

Net

Shipping




230V

Cooling

7.1

24,200

920

2.3

Cooling

Heating

8.5

29,000

920

-

Heating

198 to 264

0.2

45

0.2

45




Auto and 3 steps

Manual

Auto

Washable, Anti-Mold

R410A

44 / 41 / 38 / 30 43 / 40 / 37 / 30

Flare Type

6.35 (1/4)

15.88 (5/8)


Indoor Unit

298

1,065

218

289

1,140

379

12.0

15.0

0.12


10

2-2. Major Component Specifications

2-2-1. Indoor Unit


Control PCB

Part No.

Controls

Control Circuit Fuse

Remote Control Unit

Fan

Type

Q'ty ... Dia. and Length

Fan Motor

Type

Model ... Q'ty

No. of Poles

Rough Measure RPM (Cool / Heat)

Nominal Output

Coil Resistance

(Ambient Temp. 20

°

C)

Safety Device

Type

Over- Current Protection

Over-Heat Protection

Run Capacitor

Flap Motor

Type

Model

Rating

Coil Resistance

(Ambient Temp. 25

°

C)

Heat Exchanger Coil

Coil

Rows

Fin Pitch

Face Area mm

W

Ohm

Micro F

VAC

Ohm mm m 2

CB-KMRV74EH

Microprocessor

250V 3.15A

RCS-4MHVPIN4E

Cross-Flow

1 ... D94 / L634

DC Motor

SIC-39CVL-D847-4 ... 1

8

1,050 / 1,100

47

-

Internal Controller

Yes

Yes

-

-

Stepping Motor

MP24Z3

DC 12V

Each Pair of Terminal : 400 +/- 7%

Aluminum Plate Fin / Copper Tube

2

1.3

0.188


11


Control PCB

Part No.

Controls



Fan

Type


Fan Motor

Type

Model ... Q'ty

No. of Poles


Nominal Output

Coil Resistance

(Ambient Temp. 20

°

C)

Safety Device

Type



Run Capacitor

Flap Motor

Type

Model

Rating

Coil Resistance

(Ambient Temp. 25

°

C)


Coil

Rows

Fin Pitch

Face Area mm

W

Ohm

Micro F

VAC

Ohm mm m 2

CB-KMRV94EH

Microprocessor

250V 3.15A

RCS-4MHVPIN4E

Cross-Flow

1 ... D94 / L634

DC Motor

SIC-39CVL-D847-4 ... 1

8

1,100 / 1,150

47

-

Internal Controller

Yes

Yes

-

-

Stepping Motor

MP24Z3

DC 12V



2

1.3

0.188


12


Control PCB

Part No.

Controls



Fan

Type


Fan Motor

Type

Model ... Q'ty

No. of Poles


Nominal Output

Coil Resistance

(Ambient Temp. 20

°

C)

Safety Device

Type



Run Capacitor

Flap Motor

Type

Model

Rating

Coil Resistance

(Ambient Temp. 25

°

C)


Coil

Rows

Fin Pitch

Face Area mm

W

Ohm

Micro F

VAC

Ohm mm m 2

CB-KMRV124EH

Microprocessor

250V 3.15A

RCS-4MHVPIN4E

Cross-Flow

1 ... D94 / L634

DC Motor

SIC-39CVL-D847-4 ... 1

8

1,200 / 1,200

47

-

Internal Controller

Yes

Yes

-

-

Stepping Motor

MP24Z3

DC 12V



2

1.3

0.188


13


Control PCB

Part No.

Controls



Fan

Type


Fan Motor

Type

Model ... Q'ty

No. of Poles


Nominal Output

Coil Resistance

(Ambient Temp. 20

°

C)

Safety Device

Type



Run Capacitor

Flap Motor

Type

Model

Rating

Coil Resistance

(Ambient Temp. 25

°

C)


Coil

Rows

Fin Pitch

Face Area mm

W

Ohm

Micro F

VAC

Ohm mm m 2

CB-KRV184EH

Microprocessor

250V 3.15A

RCS-4MHVPINW4E

Cross-Flow

1 ... D94 / L845

DC Motor

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

8

1,200 / 1,200

30

-

Internal Controller

Yes

Yes

-

-

Stepping Motor

MP24Z3

DC 12V



2

1.3

0.285


14


Control PCB

Part No.

Controls



Fan

Type


Fan Motor

Type

Model ... Q'ty

No. of Poles


Nominal Output

Coil Resistance

(Ambient Temp. 20

°

C)

Safety Device

Type



Run Capacitor

Flap Motor

Type

Model

Rating

Coil Resistance

(Ambient Temp. 25

°

C)


Coil

Rows

Fin Pitch

Face Area mm

W

Ohm

Micro F

VAC

Ohm mm m 2

CB-KRV244EH

Microprocessor

250V 3.15A

RCS-4MHVPINW4E

Cross-Flow

1 ... D94 / L845

DC Motor

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

8

1,300 / 1,300

30

-

Internal Controller

Yes

Yes

-

-

Stepping Motor

MP24Z3

DC 12V



2

1.3

0.285


15

2-3. Other Component Specifications

Sensor Name

Indoor air temp sensor

Model No.

of sensor

PTM-D51H-

S3 TH2

PTM-D51H-

S3-2 TH2

Quantity of Sensor

MCAF78MR5I MCAF98MR5I MCAF128MR5I MCAF188R5I MCAF248R5I

1

0

1

0

1

0

0

1

0

1

10

9

8

7

4

3

2

1

6

5

10 15 20 25 30 35 40

Temperature (

°

C)

Sensor Name

Indoor heat exchanger sensor

Model No.

of sensor

PTM-D51H-

S3 TH1

PTM-D51H-

S3-2 TH1

Quantity of Sensor

MCAF78MR5I MCAF98MR5I MCAF128MR5I MCAF188R5I MCAF248R5I

1

0

1

0

1

0

0

1

0

1

60

40

20

0

200

180

160

140

120

100

80

0 10 20 30 40 50 60 70 80 90

Temperature (

°

C)

16

3. DIMENSIONAL DATA


MCAF98MR5I

MCAF128MR5I

17

Unit: mm


MCAF248R5I

18

Unit: mm

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram


MCAF98MR5I

MCAF128MR5I

Indoor unit

O.D. 9.52 mm (3/8")

Indoor heat exchanger

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

Cooling cycle

Heating cycle


Indoor unit

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


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

Cooling cycle

Heating cycle


Indoor unit

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


19

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

Cooling cycle

Heating cycle

5. PERFORMANCE DATA

5-1. Air Throw Distance Charts


Cooling

Room air temp. : 27

°

C

Fan speed : High

0

0 1 2 3 4

Horizontal distance (m)

5 6 7 8 9 10

1

2

3

4

Heating

Room air temp. : 20 ° C


: Flap angle 0

°

,

: Flap angle 30

°

,

0

0 1 2 3

: Axis air velocity 0

°


°


4 5 6 7 8

3

4

5

1

2

: Flap angle 45

°

,

: Flap angle 60

°

,

20


°


°

9


Cooling


°

C


0

0 1 2 3 4


5 6 7 8 9 10

1

2

3

4

Heating



: Flap angle 0

°

,

: Flap angle 30

°

,

0

0 1 2 3


°


°


4 5 6 7 8

1

2

3

4

5

: Flap angle 45

°

,

: Flap angle 60

°

,

21


°


°

9


Cooling


°

C


0

0 1 2 3 4


5 6 7 8 9 10

1

2

3

4

Heating



: Flap angle 0

°

,

: Flap angle 30

°

,

0

0 1 2 3


°


°


4 5 6 7 8

3

4

1

2

5

: Flap angle 45

°

,

: Flap angle 60

°

,

22


°


°

9


Cooling


°

C


0

0 1 2 3 4


5 6 7 8 9 10

1

2

3

4

Heating



: Flap angle 0

°

,

: Flap angle 30

°

,

0

0 1 2 3


°


°


4 5 6 7 8

1

2

3

4

5

: Flap angle 45

°

,

: Flap angle 60

°

,

23


°


°

9


Cooling


°

C


0

0 1 2 3 4


5 6 7 8 9 10

1

2

3

4

Heating



: Flap angle 0

°

,

: Flap angle 30

°

,

0

0 1 2 3


°


°


4 5 6 7 8

3

4

1

2

5

: Flap angle 45

°

,

: Flap angle 60

°

,

24


°


°

9

6. ELECTRICAL DATA

6-1. Electric Wiring Diagrams


MCAF98MR5I

MCAF128MR5I

WARNING

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

EVAPORATOR

BLK

WHT

RED

TERMINAL BASE

1

2

3

4

FLAP

CONNECTOR

1 1 RED

2 2 PNK

3 3 BLU

4 4 BRN

5 5 YEL

FLAP MOTOR

RED

FM

FAN MOTOR

BLK

WHT

YEL

BLU

3

4

1

2

5

3

4

1

2

5

AC1 AC2 SI

1

2

1

2

FLAP

5P (WHT) LAMP

10P (WHT)

5

6

3

4

7

8

7

8

9 9

10 10

5

6

3

4

RED

WHT

WHT

WHT

WHT

WHT

WHT

WHT

WHT

WHT

1

2

1

2

5

6

3

4

7

8

7

8

9 9

10 10

5

6

3

4

CONTROLLER

3

4

1

2

5

6

3

4

1

2

5

6

DCM

6P (BLU)

ROOM/COIL

4P (WHT)

3

4

1

2

3

4

1

2

ION

3P (WHT)

1

2

3

1

2

3

ROOM THERMISTOR

BLK

BLK

BLK

BLK

COIL THERMISTOR

WHT

RED

BLK

1

2

3

1

2

3

CONNECTOR

HA

JEM-A

4P (WHT)

1 2 3 4

ION

TERMINAL

1 2 3 4

1 2 3 4

ION ASSY

8FA-2-5257-72600-1

25


MCAF248R5I

WARNING

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

EVAPORATOR

BLK

WHT

RED

TERMINAL BASE

1

2

3

4

FLAP

CONNECTOR

1 1 RED

2 2 PNK

3 3 BLU

4 4 BRN

5 5

FLAP MOTOR

YEL

RED

FM

FAN MOTOR

BLK

WHT

YEL

BLU

GRN/YEL

3

4

1

2

5

3

4

1

2

5

AC1 AC2 SI

1

2

1

2

FLAP

5P (WHT) LAMP

10P (WHT)

5

6

3

4

7

8

7

8

9 9

10 10

5

6

3

4

RED

WHT

WHT

WHT

WHT

WHT

WHT

WHT

WHT

WHT

1

2

1

2

5

6

3

4

7

8

7

8

9 9

10 10

5

6

3

4

CONTROLLER

3

4

1

2

5

6

3

4

1

2

5

6

DCM

6P (BLU)

ROOM/COIL

4P (WHT)

3

4

1

2

3

4

1

2

ION

3P (WHT)

1

2

3

1

2

3

ROOM THERMISTOR

BLK

BLK

BLK

BLK

COIL THERMISTOR

E

HA

JEM-A

4P (WHT)

1 2 3 4

ION

TERMINAL

1 2 3 4

1 2 3 4

ION ASSY

8FA-2-5257-68200-0

26

7. FUNCTIONS

7-1. Operation Functions

Emergency operation

Emergency operation is available when the remote controller malfunctions, has been lost, or otherwise cannot be used.

To operate the system, press the OPERATION button, which is also used as the receiver, below the unit display.

Each time this button is pressed, the OPERATION lamp changes color to indicate the type of operation. Select the desired type of operation.

COOL HEAT

(GREEN) (RED)

STOP

• The set temperature is 2

°

C below the detected room temperature in the case of cooling operation, and 2

°

C above the room temperature in the case of heating operation. The flap and fan speed settings are AUTO.

AUTO cooling/heating operation

Selecting the operation mode

• When AUTO mode is selected, the microprocessor calculates the difference between the set temperature and the room temperature, and automatically switches to Cooling or

Heating mode.

Room temp. Set temp. COOL

Room temp. Set temp. HEAT

• As shown by the example in the figure below, with AUTO cooling/heating operation, the mode changes between

Heating and Cooling mode according to changes in the relationship between the current room temperature and the set temperature.

Example

Example of operation in AUTO mode with the set room temperature at 23 ° C.

Room temp.

Zone A

Set temp.

23

Zone B

Zone C

Zone C

Zone B

Zone A

Compressor

More than

1 hour

Within

1 hour

Operation mode

ON

Cooling

OFF

ON

Heating

OFF

ON

Cooling

NOTE

When multiple indoor units are used and units in other rooms are already operating, they will be set to the same mode of operation as the operating indoor units.

SENSOR DRY

During DRY operation, the system adjusts the room temperature and fan speed according to the conditions in the room, in order to maintain a comfortable room environment.

SENSOR DRY operation

• DRY operation is as shown in the figure below.

Load

COOL zone

A zone

B zone

Conditions are monitored at all times when the room temperature is below 15

°

C.

DRY A

The compressor operation frequency varies.

The indoor fan operates with 1/f fluctuation.

DRY B

The compressor operates at a low operating frequency.

The indoor fan operates with 1/f fluctuation.

Monitor

• Monitoring operation takes place when the room temperature is below 15

°

C, or more than 3

°

C below the set temperature.

• When the monitoring range is entered, the compressor stops, and the indoor fan operates with 1/f fluctuation.

PAM- control

• In order to further improve inverter performance, control is switched between PWM control at low operation speeds, and

PAM control at high operation speeds, making the most effective use of power.

27

HIGH POWER

This function acts to raise the power but keeps the AC system in the same operating mode.

This function is set with the HIGH POWER button on the remote controller.

(It can be set regardless of the temperature and fan speed settings.)

HIGH POWER operation from remote controller

The unit operates at maximum output for 30 minutes, regardless of the desired temperature.

The fan speed is 1 step above "High."

Frequency

MAX

0

Time

30 min.

5 min.

Start End

NOTE

• When HIGH POWER operation ends, the unit operates at low

Hz for 5 minutes, regardless of the thermostat OFF conditions.

• When in DRY mode, operation is in the cooling zone.

Lamp colors

OPERATION lamp

HEAT operation

DRY operation

COOL operation

DEFROSTING operation

TIMER lamp

QUIET lamp

ION lamp

Red

Orange

Green

Red and Orange alternately

Green

Green

Green

NIGHT SETBACK

• When NIGHT SETBACK operation is set, the temperature and fan speed settings will be adjusted automatically to allow comfortable sleep.

• When NIGHT SETBACK operation is set, " mark" appears on the remote controller. The main unit display lamp also becomes dimmer.

COOL and DRY modes

When the night setback mode is selected, the air conditioner automatically raises the temperature setting 1

°

C when 30 minutes have passed after the selection was made, and then another 1

°

C after another 30 minutes have passed, regardless of the indoor temperature when night setback was selected.

This enables you to save energy without sacrificing comfort.

This function is convenient when gentle cooling is needed.

Setting temperature

1

°

C(2

°

F)

1 ° C(2 ° F)

Press the NIGHT

SETBACK button

30 min.

30 min.

Time

HEAT mode

When the night setback mode is selected, the air conditioner automatically lowers the temperature setting 2

°

C when 30 minutes have passed after the selection was made, and then another 2

°

C after another 30 minutes have passed, regardless of the indoor temperature when night setback was selected.

This enables you to save energy without sacrificing comfort.

This function is convenient when gentle heating is needed.


2 ° C(4 ° F)

2 ° C(4 ° F)

Press the NIGHT

SETBACK button

30 min.

30 min.

Time

Timer backup

• Operation stops if there are no operator controls for 25 hours or longer after unit operation switched from OFF to ON by use of

ON timer operation.

28

7-2. Protective Functions

Overload prevention during heating

During HEAT operation, the temperature of the indoor heat exchanger is used to control the frequency and lessen the load on the compressor before the protective device is activated.

Approx.

53

A


A. Control start

B. Control end

B Approx.

47 a b c d a.

b.

c.

d.

Area: Automatic capacity control

When Point A has been exceeded, the operation frequency is reduced by a certain proportion.

Area: Frequency increase is prohibited.

At Point B and below, overload prevention is ended and control is the same as in the a area.

Freeze prevention

During COOL or DRY operation, freezing is detected and operation is stopped when the temperature of the indoor heat exchanger matches the conditions below.

1.

2.

Freeze-prevention operation is engaged when the temperature of the indoor heat exchanger is below 6 ° C.

Restart after freeze-prevention operation occurs when the temperature of the indoor heat exchanger reaches 8

°

C or above.

C

8

6

A B

2

* a b c d a.

b.

c.

d.

Area: Automatic capacity control

When the temperature drops below Point A, the operation frequency is reduced by a certain proportion.

Area: Frequency increase is prohibited.

When the temperature reaches Point C or above, freezing prevention is ended and control is the same as in the a area.

*

When the temperature drops to below 2

°

C (continuously for 2 minutes or longer), the compressor stops.

Once the freeze condition is detected, the air conditioner will work less than the maximum frequency until it is turned off.

Cold-air prevention during heating

During heating, the fan speed is set to "LL" (very low) or stopped.

As the temperature of the indoor heat exchanger rises, the fan speed is changed to the set speed.

Set fan speed

High

At stability of operation

At start of operation

LL

Stopped

25 30 Approx. 40

Indoor heat exchanger temperature (

°

C)

NOTE

• The fan speed is forcibly changed to "LL" beginning 30 seconds after the thermostat turns OFF.

• At stability of operation refers to operation when the room temperature has approached the set temperature.

• When HEAT operation starts, the indoor fan is stopped until the temperature of the indoor heat exchanger reaches 20

°

C or higher, or until the room temperature reaches 15

°

C or higher.

29

8. TROUBLESHOOTING

8-1. Precautions before Performing Inspection or Repair

After checking the self-diagnostics monitor, turn the power OFF before starting inspection or repair.

High-capacity electrolytic capacitors are used inside the outdoor unit controller (inverter). They retain an electrical charge

(charging voltage DC 310V) 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 controller LED (red) turns OFF.

If the outdoor controller is normal, approximately 30 seconds will be required for the charge to dissipate. However, allow at least 5 minutes for the charge to dissipate if there is thought to be any trouble with the outdoor controller.

8-2. Method of Self-Diagnostics

Follow the procedure below to perform detailed trouble diagnostics.

NOTE

1: If the operation lamp blinks every 0.5 seconds immediately when the power is turned ON, there is an external ROM (OTP data) failure on the indoor circuit board, or a ROM socket insertion problem, or the ROM has not been installed.

2: The failure mode is stored in memory even when the power is not ON.

Follow the procedure below to perform diagnostics.

< Clock display >

Test run mode

Self-diagnostics mode

PROCEDURE

After turning on power to the air conditioner, use the remote controller and follow the steps below to execute self-diagnostics.

Step 1: Press and hold the remote controller ION button and 1 HR TIMER button. Then, press and hold the ACL (reset) button with a pointed object such as the tip of a pen. After 5 seconds, release ACL button first, then release ION and 1 HR TIMER buttons, "oP-1"

(test run) appears, blinking in the remote controller clock display area.

Step 2: Next, press the 1 HR TIMER button once to change the display from "oP-1" to "oP-3" (self-diagnostics). (The display continues to blink.)

Step 3: Finally press the ON/OFF button to engage self-diagnostics mode.

• The self-diagnostics function utilizes the 3 indicator lamps on the main unit, in combinations of ON lamps, blinking lamps, and OFF lamps, to report the existence of sensor trouble or a protective operation. (The lamps blink or remain ON for 5 seconds, then turn OFF for 2 seconds.)

Self-diagnostics is completed when the buzzer sounds 3 short beeps.

• A maximum of 3 self-diagnostics reports are displayed, for 5 seconds each, beginning with the most recent report. Following this display the lamps turn OFF. In order to view the self-diagnostics results again, press the ON/OFF button again.

• The 3 lamps remain OFF if no trouble has occurred.

<IMPORTANT> After self-diagnostics is completed, be sure to press the

ACL (reset) button to return to normal mode. The air conditioner will not operate if this is not done.

ION button

ON/OFF operation button

1HR.

TIMER button

ACL

(Reset) button

30

(1) Self-diagnostics Lamps

INDOOR UNIT

(1) OPERATION lamp

(2) TIMER lamp

(3) QUIET lamp

ION lamp

OPERATION button

REMOTE CONTROL receiver

• Since the indications cover various units, the corresponding parts listed below may not be present in some models.

....

OFF ....

Blinking ....

ON (Illuminated)

Quiet

(3)

Indication on indoor unit

Timer

(2)

Operation

(1)

Code Diagnostics items Diagnostics contents

S01 Room temperature sensor failure

S02 Indoor heat exchanger sensor failure

(1) Sensor open circuit or short circuit

(2) Contact failure at connector or open circuit at terminal crimping location

(short-circuit detection only for the humidity sensor)

(3) Indoor/outdoor PCboard failure

S03 Humidity sensor failure

S04

S05

Compressor temperature sensor failure

Outdoor heat exchanger sensor failure

(1) Sensor open circuit or short circuit

(2) Contact failure at connector or open circuit at terminal crimping location

(3) Outdoor PCboard failure

S06

S07

E01

E02

E03

E04

E05

E06

E07

E08

E09

E10

Outdoor air temperature sensor failure

Outdoor electrical current detection failure

Outdoor PCboard failure

Indoor/outdoor communications failure

(serial communications)

• HIC circuit failure

• Power Tr (transistor) circuit failure

(1) Mis-wiring (2) AC power failure (3) Blown fuse (4) Power Relay failure

(5) Indoor or outdoor PCboard failure (6) Outdoor Fan Motor failure (7) Reactor failure

(8) High-Pressure Switch failure (9) Overload Relay failure (10) Magnetic Coil failure

* See detailed flowchart in this section.

(1) HIC or power Tr failure (2) Outdoor fan does not turn. (3) Instantaneous power outage

(4) Service valve not opened. (5) Outdoor fan blocked. (6) Continuous overload operation

(7) Compressor failure (8) Outdoor PCboard failure

Outdoor unit external ROM (OTP data) failure

Peak current cut-off

(1) External ROM data failure (2) Outdoor PCboard failure

(1) Instantaneous power outage (2) HIC or power transistor failure


PAM circuit failure

Active circuit failure

(1) Outdoor PCboard failure (2) Outdoor power supply voltage failure

Compressor discharge overheat prevention activated.

(1) Electric expansion valve failure (2) Capillaries choked (3) Shortage of refrigerant

(4) Continuous overload operation (5) Outdoor fan does not rotate (6) Outdoor PCboard failure

Indoor fan operating failure (1) Fan motor failure (2) Contact failure at connector (3) Indoor PCboard failure

4-way valve switching failure

Indoor zero-cross failure

No-refrigerant protection

(1) 4-way valve failure (heat pump model only)


(1) Service valve not opened. (2) Shortage of refrigerant

DC compressor drive circuit failure (1) Open phase (2) Outdoor PCboard failure

E11

E12

E13

Outdoor fan operating failure (1) Fan motor failure (2) Contact failure at connector (3) Outdoor PCboard failure

Outdoor system communications failure

OLR operation

Outdoor power supply open phase

Outdoor coil freezing

Freeze-prevention operation activated.

(1) Mis-wiring (2) Blown fuse (3) Power Relay failure (4) Outdoor PCboard failure

(5) Compressor failure

* See detailed flowchart in this section.

(1) Indoor fan system failure (2) Shortage of refrigerant (3) Low-temperature operation

31

(2) If the self-diagnostics function fails to operate

Check the indoor unit.

• No indicators illuminate and the indoor fan does not rotate.

• Check the power voltage.

Blown

Is the fuse blown?

Normal

Replace the controller.

Replace the circuit board or the fuse.

8-3. Checking the Indoor and Outdoor Units

(1) Checking the indoor unit

No.

Control Check items (unit operation)

1 Use the remote controller to operate the unit in "TEST run" mode. To determine whether the mode is currently in

"TEST run" mode, check the 4 indicator lamps on the unit. If all 4 are blinking, the current mode is "TEST run."

• The rated voltage must be present between inter-unit wirings 1 and 2.

• Connect a 5 k ohm resistor between inter-unit wirings 2 and 3. When the voltage at both ends is measured, approximately 12 to 15V DC must be output and the multimeter pointer must bounce once every 8 seconds.

Or instead of measuring the voltage, you can insert an LED jig and check that the LED flickers once every 8 seconds.

If there are no problems with the above, then check the outdoor unit.

For the "Test run" procedure, refer to 5. "HOW TO TEST RUN THE AIR CONDITIONER" on Appendix C.

(2) Checking the outdoor unit

No.

1

2

Control

Apply the rated voltage between outdoor unit terminals L and N.

Short-circuit the outdoor unit COM terminal to the T-RUN terminal.

Check items (unit operation)

• The control panel LED (red) must illuminate.

• The compressor, fan motor, and 4-way valve must all turn on.

If there are no problems with the above, then check the indoor unit.

TEST/T-RUN terminals

Using the TEST/T-RUN terminals

T-RUN : Test run (compressor and fan motor turn ON).

TEST/MV : Compresses time to 1/60th (accelerates operation by 60 times faster than normal).

(TEST)/MV T-RUN COM

(3) Checking the serial communications

Initial self-diagnostics

Quiet

( 3 )

Timer

( 2 )

Control 1

Operation

( 1 )

Short-circuit terminals 2 and 3 on the indoor unit terminal plate.

Short-circuit terminals 2 and 3 on the outdoor unit terminal plate.

Quiet

( 3 )

Timer

( 2 )

Operation

( 1 )

Control 2

Quiet

( 3 )

Timer

( 2 )

....

OFF

Operation

( 1 )

....

Blinking ....

Illuminated

Probable location of malfunction

Indoor unit circuit board failure

Outdoor unit circuit board failure

Failure (open circuit, contact failure, etc.) in the inter-unit wirings

Outdoor unit circuit board failure

Turn the power OFF before performing short circuiting procedures.

Refer to the previous pages when performing system self-diagnostics.

So that the check can be made quickly, indicators blink at first communication after power ON.

Before performing the above checks, perform “TEST run” operation, and check that the rated voltage is output to terminals 1 and 2 on the outdoor unit. If it is not output, there is a failure related to the indoor unit power.

32

8-4. Trouble Diagnosis of Fan Motor

8-4-1. Indoor Fan Motor

This indoor 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.

To perform diagnosis, operate the unit in cooling mode with indoor fan speed "High". Next, make sure that the indoor unit receive the signals from the remote controller when the ON/OFF operation button is pressed.

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

(B) When performing voltage measurement at the indoor controller connector for (3) in the table below, the DC motor will trip and voltage output will stop approximately 1 minute after operation is started. For this reason, to measure the voltage again, turn OFF the unit once using the remote controller, and then start the air conditioner again.

[Trouble symptom 1] The fan does not stop when the unit stops. Indoor unit controller trouble.

[Trouble symptom 2] The fan motor does not rotate when the unit is operating.

(Diagnostic procedure)

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

Measurement location

(1) Vm-Gnd: Between pin 1 and pin 3

(2) Vcc-Gnd: Between pin 4 and pin 3

(3) Vs-Gnd: Between pin 5 and pin 3

Normal value

DC 230V or more

DC 14V or more

Fluctuation between DC 1.7 to 6.1V

(Diagnostic results)

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

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

(Replace the controller .)

(Reference) DC motor connector pin arrangement

Pin 1: Vm (red)

Pin 2: Not used

Pin 3: Gnd (black)

Pin 4: Vcc (white)

Pin 5: Vs (yellow)

Pin 6: PG (blue)

[Trouble symptom 3] Motor rotates for some time (several seconds), but then quickly stops, when the indoor unit operates.

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

[Trouble symptom 4] Fan motor rotation speed does not change during indoor unit operation.

[Trouble symptom 5] Fan motor rotation speed varies excessively during indoor unit operation.

(Remedy for symptom 3 to 5)

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

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

33

8-5. Noise Malfunction and Electromagnetic Interference

An inverter A/C operates using pulse signal control and high frequencies. Therefore, it is susceptible to the effects of external noise, and is likely to cause electromagnetic interference with nearby wireless devices.

A noise filter is installed for ordinary use, preventing these problems. However, depending on the installation conditions, these effects may still occur. Please pay attention to the points listed below.

(1) Noise malfunction

This refers to the application of high-frequency noise to the signal wires, resulting in abnormal signal pulses and malfunction.

Locations most susceptible to noise Trouble Correction

1. Locations near broadcast stations where there are strong electromagnetic waves

2. Locations near amateur radio (short wave) stations

3. Locations near electronic sewing machines and arc-welding machines

Either of the following trouble may occur.

1. The unit may stop suddenly during operation.

2. Indicator lamps may flicker.

(The fundamental concept is to make the system less susceptible to noise.)

- Insulate for noise or distance from the noise source. -

1. Use shielded wires.

2. Move unit away from the noise source.

(2) Electromagnetic interference

This refers to noise generated by high-speed switching of the microcomputer and compressor. This noise radiates through space and returns to the electric wiring, affecting any wireless devices (televisions, radios, etc.) located nearby.

Locations most susceptible to noise Trouble Correction

1. A television or radio is located near the

A/C and A/C wiring.

2. The antenna cable for a television or radio is located close to the A/C and A/C wiring.

3. Locations where television and radio signals are weak.

1. Noise appears in the television picture, or the picture is distorted.

2. Static occurs in the radio sound.

1. Select a separate power source.

2. Keep the A/C and A/C wiring at least 1 meter away from wireless devices and antenna cables.

3. Change the wireless device’s antenna to a highsensitivity antenna.

4. Change the antenna cable to a BS coaxial cable.

5. Use a noise filter (for the wireless device).

6. Use a signal booster.

34

APPENDIX A INSTRUCTION MANUAL

MCAF78MR5I

MCAF98MR5I

MCAF128MR5I

(OI-852-6-4181-047-00-0)

A-1

OPERATING INSTRUCTIONS • INSTRUCCIONES DE USO

NOTICE D’UTILISATION • BEDIENUNGSANLEITUNG

ISTRUZIONI D’USO

This air conditioner uses the new refrigerant R410A

MCAF 78M R5I

MCAF 98M R5I

MCAF128MR5I

Save These Instructions • Guardéis estas instrucciones

Conserver ce notice d’utilisation • Bewahren Sie bitte diese Bedienungsanleitung auf

Conservate queste istruzioni

Split air conditioner system • Acondicionador de aire de consola partida sistema split

Climatiseurs split • Split-klimagerät • Condizionatore d’aria split system

Pub. OI-8526418 1

047

000

12 /20 07

01_MCAF78MR5I_EN.fm Page 2 Friday, November 2, 2007 2:28 PM

Features

This air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions are provided below; refer to these descriptions when using the air conditioner.

• Microprocessor Controlled Operation

The interior compartment of the remote control unit contains several features to facilitate automatic operation, easy logically displayed for easy use.

• Simple One-touch Wireless Remote Control

The remote control unit has several features to facilitate automatic operation.

• 24-Hour ON or OFF Timer

This timer can be set to automatically turn the unit on or off at any time within a 24 hour period.

• 1-Hour OFF Timer

This timer can be set to automatically turn off the unit at any time after one hour.

• Night Setback

This function saves energy by controlling operation to provide a quieter operating sound than normal.

• Automatic and 3-step Fan Speed

Auto/High/Medium/Low

• Air Sweep Control

This function moves a flap up and down in the air outlet, directing air in a sweeping motion around the room and providing comfort in every corner.

• Auto. Flap Control

This automatically sets the flap to the optimum position during heating, cooling, and drying operation.

• Hot Start Heating System

Right from the start, the air is warm and comfortable. This system prevents any cold blasts at the beginning while the heat pump is warming up, or even defrosting.

• Automatic Restart Function for Power Failure

Even when power failure occurs, preset programmed operation can be reactivated once power resumes.

• High Power Operation

If not in Auto Operation, the unit operates at maximum output for 30 minutes, regardless of the desired temperature.

The fan speed is 1 step above “High”.

• Quiet Operation

The fan rotates slower than the fan speed setting to provide a quieter operating sound.

• ION Operation

While it is operating, the unit generates negative ions that freshen up the air in the room.

• Anti-Mold Filter

This unit is equipped with an anti-mold filter that inhibits the growth of mold and bacteria.

• Air Clean Filter

An air filter that eliminates unpleasant odors and cleans the air is available.

Purchase a replacement filter at your local dealer.

(model STK-FDXB )

2 OI-047-2-EG


OI-047-3-EG

Contents

Page

Features ............................................................................................................ 2

Product Information........................................................................................... 3

Alert Symbols.................................................................................................... 3

Installation Location .......................................................................................... 4

Electrical Requirements .................................................................................... 4

Safety Instructions............................................................................................. 4

Names of Parts ................................................................................................. 5

Using the Remote Control Unit ....................................................................... 10

Operation with the Remote Control Unit ......................................................... 12

1. Automatic Operation .............................................................................. 12

2. Manual Operation .................................................................................. 13

3. Adjusting the Fan Speed........................................................................ 14

4. Night Setback Mode............................................................................... 15

5. QUIET Mode .......................................................................................... 16

6. HIGH POWER Mode ............................................................................. 16

7. ION Mode............................................................................................... 16

Special Remarks............................................................................................. 17

Setting the Timer............................................................................................. 18

Using the 1-Hour OFF Timer .......................................................................... 20

Tips for Energy Saving .................................................................................... 20

Adjusting the Airflow Direction ........................................................................ 21

Operation without the Remote Control Unit .................................................... 22

Care and Cleaning .......................................................................................... 22

Troubleshooting............................................................................................... 25

Operating Range............................................................................................. 25

Product Information

If you have problems or questions concerning your Air Conditioner, you will need the following information. Model and serial numbers are on the nameplate on the bottom of the cabinet.

Model No. ______________________ Serial No. ____________________

Date of purchase ________________________________________________

Dealer’s address ________________________________________________

Phone number ________________

DECLARATION OF CONFORMITY

This product is marked « » as it satisfies EEC Directive No. 89/336/ EEC, 73/

23/EEC, 93/68/EEC and 92/31/EEC.

This declaration will become void in case of mis-usage and/or from non observance though partial of Manufacturer’s installation and/or operating instructions.

Alert Symbols

The following symbols used in this manual, alert you to potentially dangerous conditions to users, service personnel or the appliance:


CAUTION


3


Installation Location

• We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation

Instructions provided with the unit.

• Before installation, check that the voltage of the electric supply in your home or office is the same as the voltage shown on the nameplate.

• Do not install this air conditioner where there are fumes or flammable gases, or in an extremely humid space such as a greenhouse.

• Do not install the air conditioner where excessively high heatgenerating objects are placed.

Avoid: To protect the air conditioner from heavy corrosion, avoid installing the outdoor unit where salty sea water can splash directly onto it or in sulphurous air near a spa.

Electrical Requirements

1.

All wiring must conform to the local electrical codes. Consult your dealer or a qualified electrician for details.

2.

Each unit must be properly grounded with a ground (or earth) wire or through the supply wiring.

3.

Wiring must be done by a qualified electrician.

Safety Instructions

• Read this Instruction Manual carefully before using this air conditioner. If you still have any difficulties or problems, consult your dealer for help.

• This air conditioner is designed to give you comfortable room conditions. Use this only for its intended purpose as described in this

Instruction Manual.

• Never use or store gasoline or other flammable vapor or liquid near the air conditioner — it is very dangerous.

• This air conditioner has no ventilator for intaking fresh air from outdoors. You must open doors or windows frequently when you use gas or oil heating appliances in the same room, which consume a lot of oxygen from the air. Otherwise there is a risk of suffocation in an extreme case.

CAUTION

• Do not turn the air conditioner on and off from the power mains switch. Use the ON/OFF operation button.

• Do not stick anything into the air outlet of the outdoor unit. This is dangerous because the fan is rotating at high speed.

• Do not let children play with the air conditioner.

• Do not cool or heat the room too much if babies or invalids are present.

4 OI-047-4-EG


Names of Parts

Air intakes

INDOOR UNIT

Air outlet

Remote control unit

Drain hose

Refrigerant tubes

OUTDOOR UNIT

Air outlet

NOTE

This illustration is based on the external view of a standard model.

Consequently, the shape may differ from that of the air conditioner which you have selected.

This air conditioner consists of an indoor unit and an outdoor unit. You can control the air conditioner with the remote control unit.

Air Intake

Air from the room is drawn into this section and passes through air filters which remove dust.

Air Outlet Conditioned air is blown out of the air conditioner through the air outlet.

Remote Control Unit The wireless remote control unit controls power ON/OFF, operation mode selection, temperature, fan speed, timer setting, and air sweeping.

Refrigerant Tubes The indoor and outdoor units are connected by copper tubes through which refrigerant gas flows.

Drain Hose Moisture in the room condenses and drains off through this hose.

Outdoor (Condensing) Unit

The outdoor unit contains the compressor, fan motor, heat exchanger coil, and other electrical components.

OI-047-5-EG 5


Unit Display and Operation Button

IMPORTANT

Avoid using radio equipment such as mobile phone near

(within 1 m) the remote control receiver. Some radio equipment may cause malfunction of the unit.

If the trouble happens, disconnect power and restart the air conditioner after a few minutes.

INDOOR UNIT

OPERATION lamp

TIMER lamp

QUIET lamp

ION lamp



REMOTE CONTROL receiver This section picks up infrared signals from the remote control unit

(transmitter).


When the remote control cannot be used, pressing this button enables heating and cooling operation.

Each time this button is pressed, the type of operation conducted is indicated by the changing color of the OPERATION lamp. Press the button and select the lamp color that suits your preference for operation.

Cooling operation

(green)

Heating operation

(red)

Stop

(lamp off)

OPERATION lamp

This lamp lights when the system is in the continuous AUTO (red or green),

HEAT (red), DRY (orange), and COOL (green) mode.

The OPERATION lamp lights up red and orange alternately when the system is defrosting.

TIMER lamp

This lamp lights when the system is being controlled by the timer.

QUIET lamp

This lamp lights during operation in the QUIET mode.

ION lamp This lamp lights during operation in ION mode while the indoor unit is operating.

NOTE The unit’s display lamps are dimmed during operation in the NIGHT

SETBACK mode.

6 OI-047-6-EG


(1) Operation mode

AUTO .....................................

HEAT ......................................

MILD DRY ..............................

COOL .....................................

(2) Fan speed

Automatic operation ...............

HIGH .....................................

MEDIUM.................................

LOW .......................................

(3) Temperature setting

16 – 30 °C

When set to 28 °C temperature indication............

Displayed when the time display is set to

12-hour time.

Remote Control Unit (Display)

Displayed when transmitting data

Displayed when indoor unit sensor is in use

Displayed when setting temperature

Displayed when temperature is shown

Displayed when setting timer

Symbols

(4) Timer

24-hour clock with ON/OFF program Timer........................

ON Timer................................

OFF Timer. .............................

1-hour OFF Timer...................

(5) NIGHT SETBACK ..................

(6) Confirmation of transmission .......................

(7) Auto. flap indication ................

Flap angle indication ..............

Sweep indication ....................

(8) High power operation .............

(9) Quiet operation.......................

(10) ION operation.......................

OI-047-7-EG 7


Transmitter


Sensor

8

Display

ION button

(Cover closed)

ON/OFF operation button

1 HR. TIMER button

Temperature setting buttons (TEMP.)

QUIET button

FAN SPEED selector button

FLAP button

ON TIME setting buttons

Advance button

Return button

CANCEL button

SENSOR button

MODE selector button

NIGHT SETBACK button

HIGH POWER button

Advance button

Return button

CLOCK button

OFF TIME setting buttons

Time display selector button

ADDRESS switch

ACL button

Temperature display selector button

NOTE The illustration above pictures the remote control unit after the cover has been opened.

Transmitter When you press the buttons on the remote control unit, the mark appears in the display to transmit the setting changes to the receiver in the air conditioner.

Sensor A temperature sensor inside the remote control unit senses the room temperature.

Display Information on the operating conditions is displayed while the remote control unit is switched on. If the unit is turned off, FLAP setting and FAN SPEED setting are not displayed.

ION button : This button is for turning the negative ions generated during operation on and off.


This button is for turning the air conditioner on and off.


(1-HOUR OFF TIMER)

: When you press this button, regardless of whether the unit is operating or stopping, the unit operates for one hour and then shuts down.

OI-047-8-EG


Remote Control Unit (continued)

Temperature setting buttons

(TEMP.)

Press the

Press the

button to increase the set temperature.

button to reduce the set temperature.

The temperature setting changes by 1 °C or 2 °F each time one of the TEMP. buttons is pressed.

QUIET button

MODE selector button Use this button to select AUTO, HEAT, DRY or COOL mode.

(AUTO)

: The air conditioner calculates the difference between the thermostat setting and room temperature, and automatically selects ‘‘COOL’’ or

‘‘HEAT’’ mode as appropriate.

(HEAT)

(DRY)

(COOL)

: The air conditioner makes the room warmer.

: The air conditioner reduces the humidity in the room.

: The air conditioner makes the room cooler.

NOTE When multiple indoor units are used and units in other rooms are already operating, they will be set to the same mode of operation as the operating indoor units.

: When you press this button, the fan rotates slower than the fan speed setting to provide a quieter operating sound.


: The air conditioner automatically decides the fan speeds.

: High fan speed

: Medium fan speed

: Low fan speed


For details, see “4. Night Setback Mode”. When you press this button in the

HEAT, DRY or COOL mode, the mark appears in the display, and the remote control unit will automatically adjust the set temperature to save energy.

FLAP button Press this button either to select the setting of the airflow direction to the auto. flap in each mode or one of the six possible positions manually or to select the sweep function which moves the flap up and down automatically.

: Auto flap setting: If selected in a heating operation, the flap is set to position (3) in the following chart. If selected in a cooling or dry operation, the flap is set at position (7) in the following chart.

: The airflow direction can be set manually. (six positions)

: The flap moves up and down automatically.

NOTE When you press the FLAP button, the air flow direction will be changed one by one as follows.

SWEEP


ON TIME/OFF TIME setting buttons

: If this button is pressed during HEAT, DRY or COOL operation, the unit operates at maximum output for 30 minutes, regardless of the desired temperature.

The fan speed is 1step above ‘‘HIGH’’.

No display: The timer does not operate.

: The air conditioner starts at the set time.

: The air conditioner stops at the set time.

: The air conditioner stops and starts, or starts and stops, at the set times every day. For details, see “Setting the Timer”.

OI-047-9-EG 9



SENSOR button

When you press this button (use a small-tipped object such as a ballpoint pen), the mark will appear at the display. And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly.

NOTE If the remote control is located near a heat source, such as a space heater or in direct sunlight, press the SENSOR button to switch to the sensor on the indoor unit.

Temperature Display Selector button

This switches the temperature display between °C and °F.

Time Display Selector button

This switches the time display between 24-hour time and 12-hour time.

ACL button (ALL CLEAR) Puts the remote control unit into pre-operation status. Always press this button after replacing the batteries.

ADDRESS switch • The address switch changes to prevent mixing of signals from remote control units when two air conditioners are installed next to each other.

Normally, the address switch is set to A. For more information, please contact the dealer where you made the purchase.

• Normally, the tabs on the remote control unit should not be bent.

NOTE The remote control unit sends the temperature signal to the air conditioner regularly at five minute intervals. If the signal from the remote control unit stops for more than 15 minutes due to the loss of the remote control unit or other trouble, the air conditioner will switch to the temperature sensor which is built into the indoor unit and control the room temperature. In these cases, the temperature around the remote control unit may differ from the temperature detected at the air conditioner’s position.

Using the Remote Control Unit

How to Install Batteries

1.

Slide the cover in the direction indicated by the arrow and remove it.

2.

Install two AAA alkaline batteries.

Make sure the batteries point in the direction marked in the battery compartment.

3.

Use a thin object such as the tip of a pen to press the ACL button.

ACL button

NOTE • The batteries last about six months, depending on how much you use the remote control unit. Replace the batteries when the remote control unit’s display fails to light, or when the remote control cannot be used to change the air conditioner’s settings.

• Use two fresh leak-proof type-AAA alkaline batteries.

• In replacing batteries, follow the instructions as mentioned in the sub-section “How to Install Batteries”.

• If you do not use the remote control unit more than 1 month, take out the batteries.

10 OI-047-10-EG


Using the Remote Control Unit (continued)

How to Use the Remote

Control Unit

When using the remote control unit, always point the unit’s transmitter head directly at the air conditioner’s receiver.

Air conditioner

(Indoor unit)


Receiver

(Transmitter head)


Installation Position

The remote control unit may be operated either from a non-fixed position or from a wall-mounted position. To ensure that the air conditioner operates correctly, DO NOT install the remote control unit in the following places:

DO NOT • In direct sunlight

• Behind a curtain or other places where it is covered

• More than 8 m away from the air conditioner

• In the path of the air conditioner’s airstream

• Where it may become extremely hot or cold

• Where it may be subject to electrical or magnetic noise

• Where there is an obstacle between the remote control unit and air conditioner (since a check signal is sent from the remote control unit every

5 minutes)

Mounting the Remote Control

Unit

Before mounting the remote control unit, press the ON/OFF operation button at the mounting location to make sure that the air conditioner operates from that location. The indoor unit should make a beeping sound to indicate that it has received the signal.

Rear side

Remote control unit mount

Press

Set in place

Hole

Mounting screws

4 x 16 (included)

• To prevent loss of the remote control unit, you can connect the remote control unit to the mount by passing a string through the remote control unit and attachment hole.

To take out the remote control unit, pull it forward.

When Holding the Remote

Control Unit

• When using the remote control unit and during air conditioner operation, the transmitter on the remote control unit should be pointed toward the receiver on the indoor unit.

• Make sure that there are no objects between the remote control unit and receiver which could block the signal.

OI-047-11-EG 11


1. Automatic Operation

Operation with the Remote Control

Unit

The air conditioner calculates the difference between the thermostat setting and room temperature, and automatically selects ‘‘COOL’’ or ‘‘HEAT’’ mode as appropriate.

STEP 2

STEP 1

NOTE Check that the circuit breaker on the power panel is turned on.

Once mode is selected and the unit is preset by following the steps below, you can have the air conditioner automatically bring the room to the desired temperature simply by pressing the ON/OFF operation button.

STEP 1

STEP 2

Press the MODE selector button to

Press the ON/OFF operation button.

.

NOTE

To stop the air conditioner, press the ON/OFF operation button again.

• To change the temperature setting; press the temperature setting buttons and change the setting to the desired temperature.

12 OI-047-12-EG


Operation with the Remote Control Unit (continued)

2. Manual Operation

OI-047-13-EG

STEP 2

STEP 3

STEP 1

NOTE

STEP 4

STEP 5

Check that the circuit breaker on the power panel is turned on.

If the automatic operation settings of the unit do not meet your needs, press the setting buttons as described below and change the settings as desired.

STEP 1

STEP 2

STEP 3

Press the MODE selector button and select the desired mode.

For heating operation

For dehumidifying operation

For cooling operation

→

→

→

To start the air conditioner, press the ON/OFF operation button.

Press the TEMP. setting buttons to change the temperature setting to the desired temperature.

Adjustable temperature range:

30 °C max.

16 °C min.

or 86 °F max.

60 °F min.

NOTE

STEP 4

STEP 5

Set the FAN SPEED selector button to the setting you want.

Press the FLAP button and set the airflow direction as desired.

(Refer to “Adjusting the Airflow Direction” on page 21.)


When multiple indoor units are used and units in other rooms are already operating, they will be set to the same mode of operation as the operating indoor units.

13


NOTE


• Choose the best position in the room for the remote control unit, which also acts as the sensor for room comfort and transmits the operating instructions. Once you’ve found this best position, always keep the remote control unit there.

• This appliance has a built-in 5-minute time delay circuit to ensure reliable operation. When the operation button is pressed, the compressor will start running within three minutes. In the event of power failure, the unit will stop.

3. Adjusting the Fan Speed

A. Automatic fan speed

Simply set the FAN SPEED selector button to the position.

This automatically sets the best fan speed for the room temperature.

B. Manual fan speed

If you want to adjust fan speed manually during operation, just set the FAN

SPEED selector button as desired. [ , , or ]

14 OI-047-14-EG


4. Night Setback Mode


Night Setback Mode is used for saving energy.

Press the NIGHT SETBACK button while operation.

The mark appears in the display.

To release the night setback function, press the NIGHT SETBACK button again.

A. In Cooling and DRY

Mode: ( and ) When the night setback mode is selected, the air conditioner automatically raises the temperature setting 1 °C when 30 minutes have passed after the selection was made, and then another 1 °C after another 30 minutes have passed, regardless of the indoor temperature when night setback was selected. This enables you to save energy without sacrificing comfort. This function is convenient when gentle cooling is needed.

1 °C (2 °F)


1 °C (2 °F)

Press the NIGHT

SETBACK button

30 min.

30 min. Time

B. In Heating Mode: ( )

When the night setback mode is selected, the air conditioner automatically lowers the temperature setting 2 °C when 30 minutes have passed after the selection was made, and then another 2 °C after another 30 minutes have passed, regardless of the indoor temperature when night setback was selected. This enables you to save energy without sacrificing comfort. This function is convenient when gentle heating is needed.


2 °C (4 °F)

2 °C (4 °F)

Press the NIGHT

SETBACK button

30 min.

30 min.

Time

OI-047-15-EG 15


5. QUIET Mode


QUIET Mode is used to reduce the fan sound of the indoor unit.

Press the QUIET button.


To cancel, press QUIET button again.

• In QUIET Mode, the fan rotates at a slower speed than the fan speed setting.

• If the unit is already operating with a very low airflow, the fan sound may not change even if the QUIET button is pressed.

6. HIGH POWER Mode

7. ION Mode

HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes except automatic operation.

Press the HIGH POWER button.


To cancel, press HIGH POWER button again.

• When the HIGH POWER button is pressed, the unit operates at maximum output for 30 minutes, regardless of the desired temperature. The fan speed is 1 step above “High”.

• HIGH POWER Mode cannot be used when the operation mode is

Automatic Operation.

• QUIET Mode and HIGH POWER Mode cannot be used at the same time.

NOTE • When set to High fan speed during heating operation, the fan runs at High fan speed even though the mark is displayed.

• Depending on the operating conditions, the fan speed may be increased by a small amount only.

The ION mode is used during operation to generate negative ions that freshen up the air in the room.

Press the ION button.


To cancel, press ION button again.

• The indoor unit’s ION lamp lights up while negative ions are being generated.

• ION “on” is the remote control unit’s initial setting.

• The negative ions are generated from the negative ion generator.

16 OI-047-16-EG


Special Remarks

‘‘DRY’’ ( ) Operation

How it works?

• Once the room temperature reaches the level that was set, the unit’s operation frequency is changed automatically.

• During DRY operation, the fan speed automatically runs at lower speed for providing a comfortable breeze.

• ‘‘DRY’’ operation is not possible if the indoor temperature is 15 °C or less.

Heating ( ) Operation

Heating performance • Because this air conditioner heats a room by drawing in the heat of the outside air (heat pump system), the heating efficiency will fall off when the outdoor temperature is very low. If sufficient heat cannot be obtained with this air conditioner, use another heating appliance together with it.

Defrosting • When the outdoor temperature is low, frost or ice may form on the heat exchanger coil, reducing heating performance. When this happens, a microcomputer defrosting system operates. At the same time, the fan on the indoor unit stops and the OPERATION lamp lights red and orange alternately until defrosting is completed. Heating operation restarts after several minutes. (This interval will vary slightly depending upon the outdoor temperature and the way in which frost forms.)

Cold draft prevention • For several minutes after the start of heating operation, the indoor fan runs at a lower speed until the indoor heat exchanger coil has warmed up sufficiently. However, the fan may remain stopped when the room temperature is low. This is because the COLD DRAFT PREVENTION

SYSTEM is in operation.

Power failure during operation

• In the event of power failure, the unit will stop. When the power is resumed, the unit will restart automatically within 15 minutes by the remote control unit.

Clicking Sound

Clicking sound is heard from the air conditioner

• In heating or cooling operation, any plastic parts may expand or shrink due to a sudden temperature change. In this event, a clicking sound may occur.

This is normal, and the sound will soon disappear.


• The remote control unit sends the setting condition signals to the air conditioner regularly at five minute intervals.

OI-047-17-EG 17


Setting the Timer

NOTE

1. How to set the present time

In the descriptions below, the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote control.

• Temperature: °C

• Time: AM, PM

(Example) To set to 10:30 pm.

Operation

1.

Press the CLOCK button once if the time indicator is not flashing.

Indication

The time indication alone flashes.

2.

Press the Advance, Return ( ,

) button until PM 10:30 is displayed.

The time can be set in 1-minute increments. Holding down the button advances the time rapidly in

10-minute increments.

3.

Press the CLOCK button again.

This completes the setting of the current time.

2. How to set the OFF time

(Example) To stop the air conditioner at 11:00 am.

1.

Press the OFF TIME setting button once.

2.


) button until AM 11:00 is displayed.

3.

Wait a few seconds, and then the setting is complete.

The timer indication is displayed, and the present OFF time is shown.

The timer indication blinks.



The timer indication stops blinking and the present time is displayed.

18 OI-047-18-EG


3. How to set the ON time

Setting the Timer (continued)

(Example) To start operation at 7:10 am.

Operation

1.

Press the ON TIME setting button once.

2.

3.




Indication

The timer indication is displayed, and the present ON time is shown.





4. How to set DAILY ON/OFF

REPEAT timer

(Example) To start operation at 7:10 am. and stop the air conditioner at 11:00 am.

10:30 pm.

Present time

7:10 am.

ON

11:00 am.

OFF

1.

Set the timer ON/OFF times as shown in 2-1, 2, 3 and 3-1, 2, 3.

The present time 10:30 pm. and

are displayed.

NOTE • The ON/OFF combination timer uses the current time as the reference, and it is activated starting from whichever set time comes first.

• With the ON/OFF combination timer, the settings are repeated every day.

• You can check the timer ON/OFF times after you have set them by pressing the ON TIME and OFF TIME setting buttons.

To cancel a timer program

• Press the CANCEL button.

• When either an ON or OFF timer is to be canceled, press the button corresponding to the timer whose program is to be canceled, and then press the CANCEL button.

NOTE

• The airflow direction, fan speed and temperature setting can be changed after a timer program has been set even when the unit is stopped. Even when operation is stopped during an ON timer program, the unit will start operating when the set time is reached provided that the program is not canceled.

• When the ON timer and OFF timer are set to the same time, the timer operates as if it is turned off.

OI-047-19-EG 19


Using the 1-Hour OFF Timer

1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when this button is pressed.

The indicator in the display indicates that this function is operating.

Setting procedure:

Regardless of whether the unit is operating or stopped, press the 1 HR.

TIMER button.

appears in the display.

Cancellation procedure:

Press the ON/OFF operation button to turn the unit off, wait for the unit to stop operating, and then press the ON/OFF operation button again.

The 1-Hour Timer function is now cancelled and the unit operates normally.

NOTE • If, while the 1-Hour Timer function is operating, the 1HR. TIMER button is pressed once to cancel the function and then again, the unit continues to operate for one hour from that point in time and then stops.

• It is not possible to use the OFF Timer and 1-Hour OFF Timer together.

Whichever function is set last takes precedence. If the 1 HR. TIMER button is pressed while the TIMER OFF function operates, the OFF Timer is cancelled and the unit will stop operating one hour later.

2. Operation together with the

DAILY ON/OFF REPEAT Timer

The 1-Hour OFF Timer setting is given priority over the DAILY ON/OFF

REPEAT setting.

Tips for Energy Saving

Do not • Block the air intake and outlet of the unit. If they are obstructed, the unit will not work well, and may be damaged.

• Let direct sunlight into the room. Use sunshades, blinds or curtains. If the walls and ceiling of the room are warmed by the sun, it will take longer to cool the room.

Do

• Always try to keep the air filter clean. (Refer to “Care and Cleaning”.) A clogged filter will impair the performance of the unit.

• To prevent conditioned air from escaping, keep windows, doors and any other openings closed.

20 OI-047-20-EG


Adjusting the Airflow Direction

1. Horizontal

The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right.

CAUTION

When the humidity is high, the vertical vanes should be in the front position during the cooling or dehumidifying operation. If the vertical vanes are positioned all of the way to the right or left, condensation may begin to form around the air vent and drip down.

2. Vertical The vertical airflow can be adjusted by moving the flap with the remote control unit. Do not move the flap with your hands. Confirm that the remote control unit has been turned on. Use the FLAP button to set either the sweep function or one of the six airflow direction settings.

COOL

DRY

SWEEP

SWEEP

HEAT

A. Sweep function

The flap starts moving up and down to deliver air over the sweep range.

C. Auto flap function

The flap is set to the recommended position.

B. Setting the airflow manually

Referring to the above illustration, use the

FLAP button to set the airflow direction within the range used during the heating, cooling, or dehumidifying operation.

NOTE

CAUTION

• The flap automatically closes when the unit is off.

• During the heating operation, the fan speed will be very low and the flap will be in the horizontal position (position ) until the air being blown out of the unit begins to warm. Once the air warms up, the flap position and fan speed change to the settings specified with the remote control.

• Use the FLAP button on the remote control to adjust the position of the flap. If you move the flap by hand, the flap position according to the remote control and the actual flap position may no longer match.

If this should happen, shut off the unit, wait for the flap to close, and then turn on the unit again; the flap position will now be normal again.

• Do not have the flap pointed down during cooling operation.

Condensation may begin to form around the air vent and drip down.

OI-047-21-EG 21


Operation without the Remote

Control Unit

INDOOR UNIT


If you have lost the remote control unit or it has trouble, follow the steps below.

When the air conditioner is not running

Each time the OPERATION button is pressed, the type of operation conducted is indicated by the changing color of the OPERATION lamp. Press the button and select the lamp color that suits your preference for operation.

Cooling operation

(green)

Heating operation

(red)

Stop

(lamp off)

NOTE The temperature is set to the room temperature minus 2°C during the cooling operation and to the room temperature plus 2°C during the heating operation, and the fan speed and flap are set to Auto.

Care and Cleaning

1. For safety, be sure to turn the air conditioner off and also to disconnect the power before cleaning.

2. Do not pour water on the indoor unit to clean it. This will damage the internal components and cause an electric shock hazard.

Casing and Grille (Indoor Unit) Clean the casing and grille of the indoor unit with a vacuum cleaner brush, or wipe them with a clean, soft cloth.

If these parts are stained, use a clean cloth moistened with a mild liquid detergent. When cleaning the grille, be careful not to force the vanes out of place.

CAUTION

1. Never use solvents, or harsh chemicals when cleaning the indoor unit. Do not wipe the plastic casing using very hot water.

2. Some metal edges and the fins are sharp and may cause injury if handled improperly; be especially careful when you clean these parts.

3. The internal coil and other components of the outdoor unit must be cleaned every year. Consult your dealer or service center.

22 OI-047-22-EG


Care and Cleaning (continued)

Anti-Mold Filter The anti-mold filter behind the air intake grille should be checked and cleaned at least once every two weeks.

How to remove the anti-mold filter

1.

Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you.

Air intake grille

2.

Remove the anti-mold filter attached to the rear of the air intake grille.

Anti-mold filter

Cleaning Use a vacuum cleaner to remove light dust. If there is sticky dust on the filter, wash the filter in lukewarm, soapy water, rinse it in clean water, and dry it.

How to replace the anti-mold filter

1.

With the FRONT mark of the anti-mold filter at the front, align the two indentions near the mark with the hooks at the rear of the air intake grille, and then mount the anti-mold filter.


FRONT mark

Hook

2.

Allow the edge of the air intake grille to slide into the top of the indoor unit, and then insert it all the way inside.

Groove


Pin

3.

Press in the bottom right and left corners of the air intake grille to attach the indoor unit.


OI-047-23-EG

NOTE Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit.

23



Air Clean Filter

The air clean filter removes dust and dirt from the air, and reduces odors and smoke from tobacco.

This air clean filter cannot remove harmful gases or vapors nor ventilate air in the room. You must open doors or windows frequently when you use gas or oil heating appliances. Otherwise there is a risk of suffocation in extreme cases.

How to install the air clean filter

The air clean filter needs to be installed behind the air intake grille.

1.

Remove the air intake grille.

2.

Install the air clean filter in the position shown in the figure.

3.

Remount the air intake grille.

Air clean filter

How to clean the air clean filter • In general, the filter should be sucked to remove dust in low fan speed of a vacuum cleaner once every three months.

• If there is heavily grime on the filter, soak the filter in lukewarm water with neutral detergent diluted 1:500 for 1 to 2 minutes then wash it.

• Rinse the filter in clean water, then let it dry on the towel in room temperature.

NOTE • Do not bend nor give excessive force onto the air clean filter.

• If the filter surface is heavily blocked with dirt or damaged, replace it with new one. Purchase a replacement filter at your local dealer. (model STK-FDXB )

Cleaning the main unit and remote control unit

•

•

Wipe clean using a soft, dry cloth.

To remove stubborn dirt, moisten a cloth in warm water no hotter than

40 °C, wring thoroughly, and then wipe.

• The air intake grille can be removed in order to wash it with water.

Removing and remounting the air intake grille

CAUTION

Refer to “How to remove the anti-mold filter” and “How to replace the antimold filter” on page 23.

When using a footstool or the like, be careful not to let it tip over.

Washing the grille with water • Clean the grille gently using a soft sponge, or the like. Then wipe away any remaining moisture.

• Neutral detergent may be used to remove stubborn dirt. Then rinse thoroughly with water and wipe away any remaining moisture.

Cleaning the negative ion generator

Follow the steps below when the generator has become dirty.

For safety, be sure to turn the air conditioner off and also to disconnect the power before cleaning.

24

NOTE

Remove the dust on the negative ion generator.

• Use a toothbrush, etc. to dust off the end.

• Use a cotton swab, etc., to clean around the generator inside the plastic case, taking care not to touch the electrodes.

Negative ion generator

(metal electrodes inside plastic case)

• During use, the negative ion generator and other metal parts may become discolored: this is normal and not indicative of malfunctioning.

• If the dirt on and around the negative ion generator is left to build up, a puffing or sputtering sound will eventually be heard. In this case, clean the generator immediately.

• Do not apply excessive force while performing maintenance.

OI-047-24-EG


Troubleshooting

If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center.

Air conditioner does not run at all.

1. Power failure.

2. Leakage circuit breaker tripped.

3. Line voltage is too low.

4. Batteries in remote control unit have run down.

Trouble in system.

1. Restore power.

2. Contact service center.

3. Consult your electrician or dealer.

4. Replace batteries.

OPERATION lamp blinks and air conditioner does not operate.

Compressor runs but soon stops.

Poor cooling (or heating) performance.

Clicking sound is heard from the air conditioner.

OPERATION lamp lights but outdoor unit will not run.

Contact service center.

Obstruction in front of condenser coil.

Remove obstruction.

1. Dirty or clogged air filter.

2. Heat source or many people in room.

1. Clean air filter to improve airflow.

2. Eliminate heat source if possible.

3. Doors and/or windows are open.

3. Shut them to keep the heat (or cold) out.

4. Remove it to ensure good airflow.

4. Obstacle near air intake or air discharge port.

5. Thermostat is set too high for cooling (or too low for heating).

6. (Outdoor temperature is too low for heating.)

In heating or cooling operation, any plastic parts may expand or shrink due to a sudden temperature change.

In this event, a clicking sound may occur.

The use of cellular phones near the air conditioner may cause disturbance to its normal operation.

5. Set the temperature lower (or higher).

6. (Consult your dealer or try to use another heat appliance.)


1. Turn off the power then restart the air conditioner after a while.

2. Consult your dealer.

Operating Range

The air conditioner is operable within the temperature ranges as listed below:

COOLING

HEATING

Temperature

Max.

Min.

Max.

Min.

Indoor air temperature

32 °C DB / 23 °C WB

19 °C DB / 14 °C WB

27 °C DB

16 °C DB

Outdoor air temperature

43 °C DB

19 °C DB

24 °C DB / 18 °C WB

– DB/ –15 °C WB

OI-047-25-EG 25

APPENDIX B INSTRUCTION MANUAL

MCAF188R5I

MCAF248R5I

(OI-852-6-4181-048-00-0)

A-2

OPERATING INSTRUCTIONS • INSTRUCCIONES DE USO

NOTICE D’UTILISATION • BEDIENUNGSANLEITUNG

ISTRUZIONI D’USO

This air conditioner uses the new refrigerant R410A

MCAF18 8 R5I

MCAF24 8 R5I

Save These Instructions • Guardéis estas instrucciones

Conserver ce notice d’utilisation • Bewahren Sie bitte diese Bedienungsanleitung auf

Conservate queste istruzioni

Split air conditioner system • Acondicionador de aire de consola partida sistema split

Climatiseurs split • Split-klimagerät • Condizionatore d’aria split system

Pub. OI-8526418 1

0 48

000 12 /20 07

01_MCAF188R5I_EN.fm Page 2 Friday, November 2, 2007 2:46 PM

Features

This air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions are provided below; refer to these descriptions when using the air conditioner.

• Microprocessor Controlled Operation

The interior compartment of the remote control unit contains several features to facilitate automatic operation, easy logically displayed for easy use.

• Simple One-touch Wireless Remote Control

The remote control unit has several features to facilitate automatic operation.

• 24-Hour ON or OFF Timer

This timer can be set to automatically turn the unit on or off at any time within a 24 hour period.

• 1-Hour OFF Timer

This timer can be set to automatically turn off the unit at any time after one hour.

• Night Setback

This function saves energy by controlling operation to provide a quieter operating sound than normal.

• Automatic and 3-step Fan Speed

Auto/High/Medium/Low

• Air Sweep Control

This function moves a flap up and down in the air outlet, directing air in a sweeping motion around the room and providing comfort in every corner.

• Auto. Flap Control

This automatically sets the flap to the optimum position during heating, cooling, and drying operation.

• Automatic Switching between Cooling and

Heating

When the remote control’s S/M switch is at the

“S” (Single) position

This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting.

When the remote control’s S/M switch is at the

“M” (Multiple) position

Unlike when the switch is at the “S” position as described above, the function for automatically switching between cooling and heating does not work.

• Hot Start Heating System

Right from the start, the air is warm and comfortable. This system prevents any cold blasts at the beginning while the heat pump is warming up, or even defrosting.

• Automatic Restart Function for Power Failure

Even when power failure occurs, preset programmed operation can be reactivated once power resumes.

• High Power Operation

If not in Auto Operation, the unit operates at maximum output for 30 minutes, regardless of the desired temperature.

The fan speed is 1 step above “High”.

• Quiet Operation

The fan rotates slower than the fan speed setting to provide a quieter operating sound.

• ION Operation

While it is operating, the unit generates negative ions that freshen up the air in the room.

• Anti-Mold Filter

This unit is equipped with an anti-mold filter that inhibits the growth of mold and bacteria.

• Air Clean Filter

An air filter that eliminates unpleasant odors and cleans the air is available.

Purchase a replacement filter at your local dealer.

(model STK-FDXB )

IMPORTANT

• “Single use” means that only one indoor unit is connected with one outdoor unit in a one-unit-toone-unit configuration and that the remote control's S/M switch is at the “S” (Single) position.

• “Multiple use” means that two or more indoor units are connected with one outdoor unit in a multiple-unit-to-one-unit configuration and that the remote control’s S/M switch is at the “M”

(Multiple) position. (Refer to “Using the Remote Control Unit” on page 10.)

2 OI-048-2-EG


OI-048-3-EG

Contents

Page

Features ............................................................................................................ 2

Product Information........................................................................................... 3

Alert Symbols.................................................................................................... 3

Installation Location .......................................................................................... 4

Electrical Requirements .................................................................................... 4

Safety Instructions............................................................................................. 4

Names of Parts ................................................................................................. 5

Using the Remote Control Unit ....................................................................... 10

Operation with the Remote Control Unit ......................................................... 12

1. Automatic Operation .............................................................................. 12

2. Manual Operation .................................................................................. 13

3. Adjusting the Fan Speed........................................................................ 14

4. Fan Only................................................................................................. 14

5. Night Setback Mode............................................................................... 15

6. QUIET Mode .......................................................................................... 16

7. HIGH POWER Mode ............................................................................. 16

8. ION Mode............................................................................................... 16

Special Remarks............................................................................................. 17

Setting the Timer............................................................................................. 18

Using the 1-Hour OFF Timer .......................................................................... 20

Tips for Energy Saving .................................................................................... 20

Adjusting the Airflow Direction ........................................................................ 21

Operation without the Remote Control Unit .................................................... 22

Care and Cleaning .......................................................................................... 22

Troubleshooting............................................................................................... 25

Operating Range............................................................................................. 25

Product Information

If you have problems or questions concerning your Air Conditioner, you will need the following information. Model and serial numbers are on the nameplate on the bottom of the cabinet.

Model No. ______________________ Serial No. ____________________

Date of purchase ________________________________________________

Dealer’s address ________________________________________________

Phone number ________________

DECLARATION OF CONFORMITY

This product is marked « » as it satisfies EEC Directive No. 89/336/ EEC, 73/

23/EEC, 93/68/EEC and 92/31/EEC.

This declaration will become void in case of mis-usage and/or from non observance though partial of Manufacturer’s installation and/or operating instructions.

Alert Symbols

The following symbols used in this manual, alert you to potentially dangerous conditions to users, service personnel or the appliance:


CAUTION


3


Installation Location

• We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation

Instructions provided with the unit.

• Before installation, check that the voltage of the electric supply in your home or office is the same as the voltage shown on the nameplate.

• Do not install this air conditioner where there are fumes or flammable gases, or in an extremely humid space such as a greenhouse.

• Do not install the air conditioner where excessively high heatgenerating objects are placed.

Avoid: To protect the air conditioner from heavy corrosion, avoid installing the outdoor unit where salty sea water can splash directly onto it or in sulphurous air near a spa.

Electrical Requirements

1.

All wiring must conform to the local electrical codes. Consult your dealer or a qualified electrician for details.

2.

Each unit must be properly grounded with a ground (or earth) wire or through the supply wiring.

3.

Wiring must be done by a qualified electrician.

Safety Instructions

• Read this Instruction Manual carefully before using this air conditioner. If you still have any difficulties or problems, consult your dealer for help.

• This air conditioner is designed to give you comfortable room conditions. Use this only for its intended purpose as described in this

Instruction Manual.

• Never use or store gasoline or other flammable vapor or liquid near the air conditioner — it is very dangerous.

• This air conditioner has no ventilator for intaking fresh air from outdoors. You must open doors or windows frequently when you use gas or oil heating appliances in the same room, which consume a lot of oxygen from the air. Otherwise there is a risk of suffocation in an extreme case.

CAUTION

• Do not turn the air conditioner on and off from the power mains switch. Use the ON/OFF operation button.

• Do not stick anything into the air outlet of the outdoor unit. This is dangerous because the fan is rotating at high speed.

• Do not let children play with the air conditioner.

• Do not cool or heat the room too much if babies or invalids are present.

4 OI-048-4-EG


Names of Parts

Air intakes

INDOOR UNIT

Air outlet


Drain hose

Refrigerant tubes

OUTDOOR UNIT

Air outlet

NOTE

This illustration is based on the external view of a standard model.

Consequently, the shape may differ from that of the air conditioner which you have selected.

This air conditioner consists of an indoor unit and an outdoor unit. You can control the air conditioner with the remote control unit.

Air Intake

Air from the room is drawn into this section and passes through air filters which remove dust.

Air Outlet Conditioned air is blown out of the air conditioner through the air outlet.

Remote Control Unit The wireless remote control unit controls power ON/OFF, operation mode selection, temperature, fan speed, timer setting, and air sweeping.

Refrigerant Tubes The indoor and outdoor units are connected by copper tubes through which refrigerant gas flows.

Drain Hose Moisture in the room condenses and drains off through this hose.

Outdoor (Condensing) Unit

The outdoor unit contains the compressor, fan motor, heat exchanger coil, and other electrical components.

OI-048-5-EG 5


Unit Display and Operation Button

IMPORTANT

Avoid using radio equipment such as mobile phone near

(within 1 m) the remote control receiver. Some radio equipment may cause malfunction of the unit.

If the trouble happens, disconnect power and restart the air conditioner after a few minutes.

INDOOR UNIT

OPERATION lamp

TIMER lamp

QUIET lamp

ION lamp



REMOTE CONTROL receiver This section picks up infrared signals from the remote control unit

(transmitter).


When the remote control cannot be used, pressing this button enables heating and cooling operation.

Each time this button is pressed, the type of operation conducted is indicated by the changing color of the OPERATION lamp. Press the button and select the lamp color that suits your preference for operation.

Cooling operation

(green)

Heating operation

(red)

Stop

(lamp off)

OPERATION lamp

This lamp lights when the system is in the continuous AUTO (red or green),

HEAT (red), DRY (orange), COOL (green) and FAN (green) mode (but no

FAN mode at M of the S/M switch on the remote control unit).

The OPERATION lamp lights up red and orange alternately when the system is defrosting.

TIMER lamp This lamp lights when the system is being controlled by the timer.

QUIET lamp

This lamp lights during operation in the QUIET mode.

ION lamp

This lamp lights during operation in ION mode while the indoor unit is operating.

NOTE The unit’s display lamps are dimmed during operation in the NIGHT

SETBACK mode.

6 OI-048-6-EG


(1) Operation mode

AUTO .....................................

HEAT ......................................

MILD DRY ..............................

COOL .....................................

FAN ........................................

(2) Fan speed

Automatic operation ...............

HIGH .....................................

MEDIUM.................................

LOW .......................................

(3) Temperature setting

16 – 30 °C

When set to 28 °C temperature indication............

Displayed when the time display is set to

12-hour time.

Remote Control Unit (Display)

Displayed when transmitting data

Displayed when indoor unit sensor is in use

Displayed when setting temperature

Displayed when temperature is shown

Displayed when setting timer

Symbols

(4) Timer

24-hour clock with ON/OFF program Timer........................

ON Timer................................

OFF Timer. .............................

1-hour OFF Timer...................

(5) NIGHT SETBACK ..................

(6) Confirmation of transmission..

(7) Auto. flap indication ................

Flap angle indication ..............

Sweep indication ....................

(8) High power operation .............

(9) Quiet operation.......................

(10) ION operation.......................

OI-048-7-EG 7


Transmitter


Sensor

8

Display

ION button

(Cover closed)



Temperature setting buttons (TEMP.)

QUIET button


FLAP button

ON TIME setting buttons

Advance button

Return button

CANCEL button

SENSOR button

MODE selector button



Advance button

Return button

CLOCK button

OFF TIME setting buttons

Time display selector button

ADDRESS switch

ACL button

Temperature display selector button

NOTE The illustration above pictures the remote control unit after the cover has been opened.

Transmitter When you press the buttons on the remote control unit, the mark appears in the display to transmit the setting changes to the receiver in the air conditioner.

Sensor A temperature sensor inside the remote control unit senses the room temperature.

Display Information on the operating conditions is displayed while the remote control unit is switched on. If the unit is turned off, FLAP setting and FAN SPEED setting are not displayed.

ION button : This button is for turning the negative ions generated during operation on and off.


This button is for turning the air conditioner on and off.


(1-HOUR OFF TIMER)

: When you press this button, regardless of whether the unit is operating or stopping, the unit operates for one hour and then shuts down.

OI-048-8-EG



Temperature setting buttons

(TEMP.)

Press the

Press the

button to increase the set temperature.

button to reduce the set temperature.

The temperature setting changes by 1 °C or 2 °F each time one of the TEMP. buttons is pressed.

QUIET button

: When you press this button, the fan rotates slower than the fan speed setting to provide a quieter operating sound.

MODE selector button Use this button to select AUTO, HEAT, DRY, COOL or FAN mode.

(AUTO)

: When this setting is selected, the air conditioner calculates the difference between the thermostat setting and the room temperature and automatically switches to the ‘‘COOL’’ or ‘‘HEAT’’ mode as appropriate except at “M” of the Single/Multiple switch.

(HEAT)

(DRY)

(COOL)

(FAN)

: The air conditioner makes the room warmer.

: The air conditioner reduces the humidity in the room.

: The air conditioner makes the room cooler.

: The air conditioner works only as a circulation fan except at “M” of the

Single/Multiple switch.


: The air conditioner automatically decides the fan speeds.

: High fan speed

: Medium fan speed

: Low fan speed


For details, see “5. Night Setback Mode”. When you press this button in the

HEAT, DRY or COOL mode, the mark appears in the display, and the remote control unit will automatically adjust the set temperature to save energy.

FLAP button

Press this button either to select the setting of the airflow direction to the auto. flap in each mode or one of the six possible positions manually or to select the sweep function which moves the flap up and down automatically.

: Auto flap setting: If selected in a heating operation, the flap is set to position (3) in the following chart. If selected in a cooling or dry operation, the flap is set at position (7) in the following chart.

: The airflow direction can be set manually. (six positions)

: The flap moves up and down automatically.

NOTE When you press the FLAP button, the air flow direction will be changed one by one as follows.

SWEEP


ON TIME/OFF TIME setting buttons

: If this button is pressed during HEAT, DRY, COOL or FAN operation, the unit operates at maximum output for 30 minutes, regardless of the desired temperature.

The fan speed is 1step above ‘‘HIGH’’.

No display: The timer does not operate.

: The air conditioner starts at the set time.

: The air conditioner stops at the set time.

: The air conditioner stops and starts, or starts and stops, at the set times every day. For details, see “Setting the Timer”.

OI-048-9-EG 9



SENSOR button

When you press this button (use a small-tipped object such as a ballpoint pen), the mark will appear at the display. And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly.

NOTE If the remote control is located near a heat source, such as a space heater or in direct sunlight, press the SENSOR button to switch to the sensor on the indoor unit.

Temperature Display Selector button

This switches the temperature display between °C and °F.

Time Display Selector button This switches the time display between 24-hour time and 12-hour time.

ACL button (ALL CLEAR) Puts the remote control unit into pre-operation status. Always press this button after replacing the batteries and setting the S/M switch.

ADDRESS switch • The address switch changes to prevent mixing of signals from remote control units when two air conditioners are installed next to each other.

Normally, the address switch is set to A. For more information, please contact the dealer where you made the purchase.

• Normally, the tabs on the remote control unit should not be bent.

S/M (Single/Multiple switch) • Initially, the S/M switch is set to S (Single).

• Set this switch to M (Multiple) for multiple operation.

• Always press ACL button by a thin object such as the tip of a pen after setting the S/M switch.

NOTE When multiple indoor units are used and units in other rooms are already operating, they will be set to the same mode of operation as the operating indoor units.

NOTE The remote control unit sends the temperature signal to the air conditioner regularly at five minute intervals. If the signal from the remote control unit stops for more than 15 minutes due to the loss of the remote control unit or other trouble, the air conditioner will switch to the temperature sensor which is built into the indoor unit and control the room temperature. In these cases, the temperature around the remote control unit may differ from the temperature detected at the air conditioner’s position.

Using the Remote Control Unit

How to Install Batteries

1.

Slide the cover in the direction indicated by the arrow and remove it.

2.

Install two AAA alkaline batteries.

Make sure the batteries point in the direction marked in the battery compartment.

3.

Use a thin object such as the tip of a pen to press the ACL button.

ACL button

NOTE • The batteries last about six months, depending on how much you use the remote control unit. Replace the batteries when the remote control unit’s display fails to light, or when the remote control cannot be used to change the air conditioner’s settings.

• Use two fresh leak-proof type-AAA alkaline batteries.

• In replacing batteries, follow the instructions as mentioned in the sub-section “How to Install Batteries”.

• If you do not use the remote control unit more than 1 month, take out the batteries.

OI-048-10-EG 10


Using the Remote Control Unit (continued)

How to Use the Remote

Control Unit

When using the remote control unit, always point the unit’s transmitter head directly at the air conditioner’s receiver.

Air conditioner

(Indoor unit)


Receiver

(Transmitter head)


Installation Position

The remote control unit may be operated either from a non-fixed position or from a wall-mounted position. To ensure that the air conditioner operates correctly, DO NOT install the remote control unit in the following places:

DO NOT • In direct sunlight

• Behind a curtain or other places where it is covered

• More than 8 m away from the air conditioner

• In the path of the air conditioner’s airstream

• Where it may become extremely hot or cold

• Where it may be subject to electrical or magnetic noise

• Where there is an obstacle between the remote control unit and air conditioner (since a check signal is sent from the remote control unit every

5 minutes)

Mounting the Remote Control

Unit

Before mounting the remote control unit, press the ON/OFF operation button at the mounting location to make sure that the air conditioner operates from that location. The indoor unit should make a beeping sound to indicate that it has received the signal.


Rear side

Press

Mounting screws

4 x 16 (included)

Set in place

Hole

• To prevent loss of the remote control unit, you can connect the remote control unit to the mount by passing a string through the remote control unit and attachment hole.


When Holding the Remote

Control Unit

• When using the remote control unit and during air conditioner operation, the transmitter on the remote control unit should be pointed toward the receiver on the indoor unit.

• Make sure that there are no objects between the remote control unit and receiver which could block the signal.

OI-048-11-EG 11


1. Automatic Operation

Operation with the Remote Control

Unit

When the remote control’s S/M switch is at the “S” (Single) position

This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting.

When the remote control’s S/M switch is at the “M” (Multiple) position

Unlike when the switch is at the “S” position as described above, the function for automatically switching between cooling and heating does not work.

STEP 2

STEP 1

NOTE Check that the circuit breaker on the power panel is turned on.

Once mode is selected and the unit is preset by following the steps below, you can have the air conditioner automatically bring the room to the desired temperature simply by pressing the ON/OFF operation button.

STEP 1

STEP 2

Press the MODE selector button to


.

NOTE


• To change the temperature setting; press the temperature setting buttons and change the setting to the desired temperature.

12 OI-048-12-EG



2. Manual Operation

OI-048-13-EG

STEP 2

STEP 3

STEP 1

NOTE

STEP 4

STEP 5

Check that the circuit breaker on the power panel is turned on.

If the automatic operation settings of the unit do not meet your needs, press the setting buttons as described below and change the settings as desired.

STEP 1

STEP 2

STEP 3

Press the MODE selector button and select the desired mode.

For heating operation

For dehumidifying operation

For cooling operation

For fan only operation

→

→

→

→

(No FAN mode at M of the S/M switch on the remote control unit.)

To start the air conditioner, press the ON/OFF operation button.

Press the TEMP. setting buttons to change the temperature setting to the desired temperature.

Adjustable temperature range:

30 °C max.

16 °C min.

or 86 °F max.

60 °F min.

STEP 4

STEP 5

Set the FAN SPEED selector button to the setting you want.

Press the FLAP button and set the airflow direction as desired.

(Refer to “Adjusting the Airflow Direction” on page 21.)


13


NOTE


• Choose the best position in the room for the remote control unit, which also acts as the sensor for room comfort and transmits the operating instructions. Once you’ve found this best position, always keep the remote control unit there.

• This appliance has a built-in 5-minute time delay circuit to ensure reliable operation. When the operation button is pressed, the compressor will start running within three minutes. In the event of power failure, the unit will stop.

3. Adjusting the Fan Speed

A. Automatic fan speed

Simply set the FAN SPEED selector button to the position.

This automatically sets the best fan speed for the room temperature.

B. Manual fan speed

If you want to adjust fan speed manually during operation, just set the FAN

SPEED selector button as desired. [ , , or ]

4. Fan Only

STEP 2

STEP 1

STEP 3

If you want to circulate air without any temperature control, follow these steps:

STEP 1 Press the MODE selector button to switch to the fan mode

.

STEP 2

STEP 3


Press the FAN SPEED selector button to select the fan speed of your choice ( , or ).

NOTE There is no FAN only function at M of the S/M switch on the remote control unit.

14 OI-048-14-EG


5. Night Setback Mode


Night Setback Mode is used for saving energy.

Press the NIGHT SETBACK button while operation.


To release the night setback function, press the NIGHT SETBACK button again.

A. In Cooling and DRY

Mode: ( and ) When the night setback mode is selected, the air conditioner automatically raises the temperature setting 1 °C when 30 minutes have passed after the selection was made, and then another 1 °C after another 30 minutes have passed, regardless of the indoor temperature when night setback was selected. This enables you to save energy without sacrificing comfort. This function is convenient when gentle cooling is needed.

1 °C (2 °F)


1 °C (2 °F)

Press the NIGHT

SETBACK button

30 min.

30 min. Time

B. In Heating Mode: ( )

When the night setback mode is selected, the air conditioner automatically lowers the temperature setting 2 °C when 30 minutes have passed after the selection was made, and then another 2 °C after another 30 minutes have passed, regardless of the indoor temperature when night setback was selected. This enables you to save energy without sacrificing comfort. This function is convenient when gentle heating is needed.


2 °C (4 °F)

2 °C (4 °F)

Press the NIGHT

SETBACK button

30 min.

30 min.

Time

OI-048-15-EG 15


6. QUIET Mode


QUIET Mode is used to reduce the fan sound of the indoor unit.

Press the QUIET button.


To cancel, press QUIET button again.

• In QUIET Mode, the fan rotates at a slower speed than the fan speed setting.

• If the unit is already operating with a very low airflow, the fan sound may not change even if the QUIET button is pressed.

7. HIGH POWER Mode

8. ION Mode

HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes except automatic operation.

Press the HIGH POWER button.


To cancel, press HIGH POWER button again.

• When the HIGH POWER button is pressed, the unit operates at maximum output for 30 minutes, regardless of the desired temperature. The fan speed is 1 step above “High”.

• HIGH POWER Mode cannot be used when the operation mode is

Automatic Operation.

• QUIET Mode and HIGH POWER Mode cannot be used at the same time.

NOTE • When set to High fan speed during heating operation, the fan runs at High fan speed even though the mark is displayed.

• Depending on the operating conditions, the fan speed may be increased by a small amount only.

The ION mode is used during operation to generate negative ions that freshen up the air in the room.

Press the ION button.


To cancel, press ION button again.

• The indoor unit’s ION lamp lights up while negative ions are being generated.

• ION “on” is the remote control unit’s initial setting.

• The negative ions are generated from the negative ion generator.

16 OI-048-16-EG


Special Remarks

‘‘DRY’’ ( ) Operation

How it works?

• Once the room temperature reaches the level that was set, the unit’s operation frequency is changed automatically.

• During DRY operation, the fan speed automatically runs at lower speed for providing a comfortable breeze.

• ‘‘DRY’’ operation is not possible if the indoor temperature is 15 °C or less.

Heating ( ) Operation

Heating performance • Because this air conditioner heats a room by drawing in the heat of the outside air (heat pump system), the heating efficiency will fall off when the outdoor temperature is very low. If sufficient heat cannot be obtained with this air conditioner, use another heating appliance together with it.

Defrosting • When the outdoor temperature is low, frost or ice may form on the heat exchanger coil, reducing heating performance. When this happens, a microcomputer defrosting system operates. At the same time, the fan on the indoor unit stops and the OPERATION lamp lights red and orange alternately until defrosting is completed. Heating operation restarts after several minutes. (This interval will vary slightly depending upon the outdoor temperature and the way in which frost forms.)

Cold draft prevention • For several minutes after the start of heating operation, the indoor fan runs at a lower speed until the indoor heat exchanger coil has warmed up sufficiently. However, the fan may remain stopped when the room temperature is low. This is because the COLD DRAFT PREVENTION

SYSTEM is in operation.

Cooling ( ) Operation

• Sometimes the indoor unit may not get to the set fan speed such as LOW and QUIET under cool operation at very low outdoor temperatures due to the indoor unit being protected from ice or frost.

Power failure during operation

• In the event of power failure, the unit will stop. When the power is resumed, the unit will restart automatically within 5 minutes or 15 minutes at M position of the S/M switch on AUTO mode by the remote control unit.

Clicking Sound

Clicking sound is heard from the air conditioner

• In heating or cooling operation, any plastic parts may expand or shrink due to a sudden temperature change. In this event, a clicking sound may occur.



• The remote control unit sends the setting condition signals to the air conditioner regularly at five minute intervals.

OI-048-17-EG 17


Setting the Timer

NOTE

1. How to set the present time

In the descriptions below, the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote control.

• Temperature: °C

• Time: AM, PM

(Example) To set to 10:30 pm.

Operation

1.

Press the CLOCK button once if the time indicator is not flashing.

Indication

The time indication alone flashes.

2.


) button until PM 10:30 is displayed.



3.

Press the CLOCK button again.

This completes the setting of the current time.

2. How to set the OFF time

(Example) To stop the air conditioner at 11:00 am.

1.

Press the OFF TIME setting button once.

2.



3.


The timer indication is displayed, and the present OFF time is shown.





18 OI-048-18-EG


3. How to set the ON time

Setting the Timer (continued)

(Example) To start operation at 7:10 am.

Operation

1.

Press the ON TIME setting button once.

2.

3.




Indication

The timer indication is displayed, and the present ON time is shown.





4. How to set DAILY ON/OFF

REPEAT timer

(Example) To start operation at 7:10 am. and stop the air conditioner at 11:00 am.

10:30 pm.

Present time

7:10 am.

ON

11:00 am.

OFF

1.

Set the timer ON/OFF times as shown in 2-1, 2, 3 and 3-1, 2, 3.

The present time 10:30 pm. and

are displayed.

NOTE • The ON/OFF combination timer uses the current time as the reference, and it is activated starting from whichever set time comes first.

• With the ON/OFF combination timer, the settings are repeated every day.

• You can check the timer ON/OFF times after you have set them by pressing the ON TIME and OFF TIME setting buttons.

To cancel a timer program

• Press the CANCEL button.

• When either an ON or OFF timer is to be canceled, press the button corresponding to the timer whose program is to be canceled, and then press the CANCEL button.

NOTE

• The airflow direction, fan speed and temperature setting can be changed after a timer program has been set even when the unit is stopped. Even when operation is stopped during an ON timer program, the unit will start operating when the set time is reached provided that the program is not canceled.

• When the ON timer and OFF timer are set to the same time, the timer operates as if it is turned off.

OI-048-19-EG 19


Using the 1-Hour OFF Timer

1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when this button is pressed.

The indicator in the display indicates that this function is operating.

Setting procedure:

Regardless of whether the unit is operating or stopped, press the 1 HR.

TIMER button.

appears in the display.

Cancellation procedure:

Press the ON/OFF operation button to turn the unit off, wait for the unit to stop operating, and then press the ON/OFF operation button again.

The 1-Hour Timer function is now cancelled and the unit operates normally.

NOTE • If, while the 1-Hour Timer function is operating, the 1HR. TIMER button is pressed once to cancel the function and then again, the unit continues to operate for one hour from that point in time and then stops.

• It is not possible to use the OFF Timer and 1-Hour OFF Timer together.

Whichever function is set last takes precedence. If the 1 HR. TIMER button is pressed while the TIMER OFF function operates, the OFF Timer is cancelled and the unit will stop operating one hour later.

2. Operation together with the

DAILY ON/OFF REPEAT Timer

The 1-Hour OFF Timer setting is given priority over the DAILY ON/OFF

REPEAT setting.

Tips for Energy Saving

Do not • Block the air intake and outlet of the unit. If they are obstructed, the unit will not work well, and may be damaged.

• Let direct sunlight into the room. Use sunshades, blinds or curtains. If the walls and ceiling of the room are warmed by the sun, it will take longer to cool the room.

Do

• Always try to keep the air filter clean. (Refer to “Care and Cleaning”.) A clogged filter will impair the performance of the unit.

• To prevent conditioned air from escaping, keep windows, doors and any other openings closed.

20 OI-048-20-EG


Adjusting the Airflow Direction

1. Horizontal

The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right.

CAUTION

When the humidity is high, the vertical vanes should be in the front position during the cooling or dehumidifying operation. If the vertical vanes are positioned all of the way to the right or left, condensation may begin to form around the air vent and drip down.

2. Vertical The vertical airflow can be adjusted by moving the flap with the remote control unit. Do not move the flap with your hands. Confirm that the remote control unit has been turned on. Use the FLAP button to set either the sweep function or one of the six airflow direction settings.

COOL

DRY

FAN

SWEEP

SWEEP

HEAT

A. Sweep function

The flap starts moving up and down to deliver air over the sweep range.

C. Auto flap function

The flap is set to the recommended position.

B. Setting the airflow manually

Referring to the above illustration, use the

FLAP button to set the airflow direction within the range used during the heating, cooling, or dehumidifying operation.

NOTE

CAUTION

• The flap automatically closes when the unit is off.

• During the heating operation, the fan speed will be very low and the flap will be in the horizontal position (position ) until the air being blown out of the unit begins to warm. Once the air warms up, the flap position and fan speed change to the settings specified with the remote control.

• Use the FLAP button on the remote control to adjust the position of the flap. If you move the flap by hand, the flap position according to the remote control and the actual flap position may no longer match.

If this should happen, shut off the unit, wait for the flap to close, and then turn on the unit again; the flap position will now be normal again.

• Do not have the flap pointed down during cooling operation.

Condensation may begin to form around the air vent and drip down.

OI-048-21-EG 21


Operation without the Remote

Control Unit

INDOOR UNIT


If you have lost the remote control unit or it has trouble, follow the steps below.

When the air conditioner is not running

Each time the OPERATION button is pressed, the type of operation conducted is indicated by the changing color of the OPERATION lamp. Press the button and select the lamp color that suits your preference for operation.

Cooling operation

(green)

Heating operation

(red)

Stop

(lamp off)

NOTE The temperature is set to the room temperature minus 2°C during the cooling operation and to the room temperature plus 2°C during the heating operation, and the fan speed and flap are set to Auto.

Care and Cleaning

1. For safety, be sure to turn the air conditioner off and also to disconnect the power before cleaning.

2. Do not pour water on the indoor unit to clean it. This will damage the internal components and cause an electric shock hazard.

Casing and Grille (Indoor Unit) Clean the casing and grille of the indoor unit with a vacuum cleaner brush, or wipe them with a clean, soft cloth.

If these parts are stained, use a clean cloth moistened with a mild liquid detergent. When cleaning the grille, be careful not to force the vanes out of place.

CAUTION

1. Never use solvents, or harsh chemicals when cleaning the indoor unit. Do not wipe the plastic casing using very hot water.

2. Some metal edges and the fins are sharp and may cause injury if handled improperly; be especially careful when you clean these parts.

3. The internal coil and other components of the outdoor unit must be cleaned every year. Consult your dealer or service center.

22 OI-048-22-EG



Anti-Mold Filter The anti-mold filter behind the air intake grille should be checked and cleaned at least once every two weeks.

How to remove the anti-mold filter

1.

Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you.


2.

Remove the anti-mold filter attached to the rear of the air intake grille.


Cleaning Use a vacuum cleaner to remove light dust. If there is sticky dust on the filter, wash the filter in lukewarm, soapy water, rinse it in clean water, and dry it.

How to replace the anti-mold filter

1.

With the FRONT mark of the anti-mold filter at the front, align the two indentions near the mark with the hooks at the rear of the air intake grille, and then mount the anti-mold filter.


FRONT mark

Hook

2.

Allow the edge of the air intake grille to slide into the top of the indoor unit, and then insert it all the way inside.

Groove


Pin

OI-048-23-EG

3.

To attach the air intake grille to the indoor unit, press its bottom right and left corners as well as its bottom center into place.


NOTE Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit.

23



Air Clean Filter

The air clean filter removes dust and dirt from the air, and reduces odors and smoke from tobacco.

This air clean filter cannot remove harmful gases or vapors nor ventilate air in the room. You must open doors or windows frequently when you use gas or oil heating appliances. Otherwise there is a risk of suffocation in extreme cases.

How to install the air clean filter

The air clean filter needs to be installed behind the air intake grille.

1.

Remove the air intake grille.

2.

Install the air clean filter in the position shown in the figure.

3.

Remount the air intake grille.

Air clean filter

How to clean the air clean filter • In general, the filter should be sucked to remove dust in low fan speed of a vacuum cleaner once every three months.

• If there is heavily grime on the filter, soak the filter in lukewarm water with neutral detergent diluted 1:500 for 1 to 2 minutes then wash it.

• Rinse the filter in clean water, then let it dry on the towel in room temperature.

NOTE • Do not bend nor give excessive force onto the air clean filter.

• If the filter surface is heavily blocked with dirt or damaged, replace it with new one. Purchase a replacement filter at your local dealer. (model STK-FDXB )

Cleaning the main unit and remote control unit

•

•

Wipe clean using a soft, dry cloth.

To remove stubborn dirt, moisten a cloth in warm water no hotter than

40 °C, wring thoroughly, and then wipe.

• The air intake grille can be removed in order to wash it with water.

Removing and remounting the air intake grille

CAUTION

Refer to “How to remove the anti-mold filter” and “How to replace the antimold filter” on page 23.

When using a footstool or the like, be careful not to let it tip over.

Washing the grille with water • Clean the grille gently using a soft sponge, or the like. Then wipe away any remaining moisture.

• Neutral detergent may be used to remove stubborn dirt. Then rinse thoroughly with water and wipe away any remaining moisture.

Cleaning the negative ion generator

Follow the steps below when the generator has become dirty.

For safety, be sure to turn the air conditioner off and also to disconnect the power before cleaning.

NOTE

Remove the dust on the negative ion generator.

• Use a toothbrush, etc. to dust off the end.

• Use a cotton swab, etc., to clean around the generator inside the plastic case, taking care not to touch the electrodes.

Negative ion generator

(metal electrodes inside plastic case)

• During use, the negative ion generator and other metal parts may become discolored: this is normal and not indicative of malfunctioning.

• If the dirt on and around the negative ion generator is left to build up, a puffing or sputtering sound will eventually be heard. In this case, clean the generator immediately.

• Do not apply excessive force while performing maintenance.

24 OI-048-24-EG


Troubleshooting

If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center.

Air conditioner does not run at all.

1. Power failure.

2. Leakage circuit breaker tripped.

3. Line voltage is too low.

4. Batteries in remote control unit have run down.

Trouble in system.

1. Restore power.

2. Contact service center.

3. Consult your electrician or dealer.

4. Replace batteries.

OPERATION lamp blinks and air conditioner does not operate.

Compressor runs but soon stops.

Poor cooling (or heating) performance.

Clicking sound is heard from the air conditioner.

OPERATION lamp lights but outdoor unit will not run.

Contact service center.

Obstruction in front of condenser coil.

Remove obstruction.

1. Dirty or clogged air filter.

2. Heat source or many people in room.

1. Clean air filter to improve airflow.

2. Eliminate heat source if possible.

3. Doors and/or windows are open.

3. Shut them to keep the heat (or cold) out.

4. Remove it to ensure good airflow.

4. Obstacle near air intake or air discharge port.

5. Thermostat is set too high for cooling (or too low for heating).

6. (Outdoor temperature is too low for heating.)

In heating or cooling operation, any plastic parts may expand or shrink due to a sudden temperature change.

In this event, a clicking sound may occur.

The use of cellular phones near the air conditioner may cause disturbance to its normal operation.

5. Set the temperature lower (or higher).

6. (Consult your dealer or try to use another heat appliance.)


1. Turn off the power then restart the air conditioner after a while.

2. Consult your dealer.

Operating Range

The air conditioner is operable within the temperature ranges as listed below:

COOLING

Temperature

Max.

Min.

Indoor air temperature

32 °C DB / 23 °C WB

19 °C DB / 14 °C WB

HEATING Max.

Min.

27 °C DB

16 °C DB

Outdoor air temperature

43 °C DB

For Single use –15 °C DB

For Multiple use 19 °C DB

24 °C DB / 18 °C WB

– DB/ –15 °C WB

OI-048-25-EG 25

APPENDIX C INSTALLATION INSTRUCTIONS

MCAF78MR5I

MCAF98MR5I

MCAF128MR5I

MCAF188R5I

MCAF248R5I

(II-852-6-4190-445-00-0)

A-3

07-341 GRF318MR5I ENG 11/7/07 5:25 PM Page a

For Indoor Unit

INSTALLATION INSTRUCTIONS

– Multi Split system air conditioner –

COOL / DRY/ HEAT Model

This air conditioner uses the new refrigerant R410A.

Contents

Page

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. Embedding the Tubing and Wiring

3.

HOW TO INSTALL THE INDOOR UNIT .............

6

3-1. Remove the Rear Panel from the Unit

3-2. Make a Hole

3-3. Install the Rear Panel on the Wall

3-4. Remove the Grille to Install the Indoor Unit

3-5. Shape the Indoor Side Tubing

3-6. Wiring Instructions

3-7. Wiring Instructions for Inter-unit Connections

3-8. Mounting

3-9. Drain Hose

4.

MULTIPLE SWITCH ON THE REMOTE

CONTROL UNIT INDOOR UNIT TYPES

(MCAF188R5I, MCAF248R5I) ...........................

15

5.

HOW TO TEST RUN THE AIR CONDITIONER ...

16

6.

REMOTE CONTROL UNIT INSTALLATION

POSITION .........................................................

17

6-1. Mounting on a Wall

7.

ADDRESS SWITCH ..........................................

18

7-1. Address Setting of the Remote

Control Unit

8.

CONNECTING A HOME AUTOMATION

DEVICE ..............................................................

19

9.

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

19

Model Combinations

Combine indoor and outdoor units only as listed below.

Indoor Unit

MCAF78MR5I

MCAF98MR5I

MCAF128MR5I

MCAF188R5I

MCAF248R5I

Outdoor Unit

GRF148MR5I

GRF198MR5I

GRF248MR5I

GRF318MR5I

Power Source:

50 Hz, single-phase, 220 – 240 VAC

Combinations of indoor and outdoor units

Connect indoor and outdoor units only in the combinations listed in the catalog or installation manual.

CAUTION

Connecting any other model may result in operation failure and system damage.

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

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.

85264190 445 000 12/2007

07-341 GRF318MR5I ENG 11/7/07 5:25 PM Page 2

IMPORTANT!

Please Read Before Starting

This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.

G

G

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

G

G

Carefully read this instruction booklet before beginning.

Follow each installation or repair step exactly as shown.

Observe all local, state, and national electrical codes.

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

WARNING

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

CAUTION

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

If Necessary, Get Help

These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sales/service outlet or your certified dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS

WARNING When Wiring

ELECTRICAL SHOCK CAN CAUSE

SEVERE PERSONAL INJURY OR DEATH.

ONLY A QUALIFIED, EXPERIENCED

ELECTRICIAN SHOULD ATTEMPT TO

WIRE THIS SYSTEM.

• Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked.

• Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death.

• Ground the unit following local electrical codes.

• Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.

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

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.

2

When Installing…

…In a Ceiling or Wall

Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary to construct a strong wood or metal frame to provide added support.

…In a Room

Properly insulate any tubing run inside a room to prevent

“sweating” that can cause dripping and water damage to walls and floors.

…In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration.

When Connecting Refrigerant Tubing

• Do not add any refrigerant, air, or substance into the refrigeration circuit other than the designated refrigerant

(R410A). Adding anything other than the specified refrigerant may cause the pressure to rise excessively in the refrigeration circuit, rupturing the circuit and causing injury or damage.

• Use all-new tubing and flare nuts to make the tubing connections. Using any previous parts (from R22-based systems) may result in damage to the equipment, and may lead to the refrigeration circuit rupturing, causing a serious accident.

• 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.

CAUTION

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.


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.

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

1. Standard screwdriver

2. Phillips head screwdriver

3. Knife or wire stripper

4. Tape measure

1-2. Accessories Supplied with Unit

Table 1

Parts Figure Q’ty

Remote control unit

Remote control unit holder

1

1

Parts

Tapping screw

Tapping screw

Figure

Truss-head

Phillips

4 16 mm

Truss-head

Phillips

4 30 mm

AAA alkaline battery

2

5. Carpenter’s level

6. Sabre saw or key hole saw

7. Hacksaw

8. Core bits

9. Hammer

10. Drill

11. Tube cutter

12. Tube flaring tool

13. Torque wrench

14. Adjustable wrench

15. Reamer (for deburring)

Q’ty

2

Parts

Air clean filter

8 Clamp

Figure Q’ty

2

1

Packed in the indoor unit.

1-3. Optional Copper Tubing Kit

Copper tubing for connecting the outdoor unit to the indoor unit is available in kits which contain the narrow and wide tubing, fittings and insulation. Consult your nearest sales outlet or Air Conditioner 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 8 mm.

3.

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

3-6. Wiring Instructions for details.

1-4. Type of Copper Tube and Insulation Material

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

1.

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

Cut each tube to the appropriate lengths +30 cm to 40 cm to dampen vibration between units.

Table 2

Model

MCAF78

MCAF98

MCAF128

MCAF188

MCAF248

Narrow Tube

Outer Dia.

6.35 mm

6.35 mm

6.35 mm

6.35 mm

6.35 mm

Thickness

0.8 mm

0.8 mm

0.8 mm

0.8 mm

0.8 mm

Wide Tube

Outer Dia.

9.52 mm

9.52 mm

9.52 mm

12.70 mm

15.88 mm

Thickness

0.8 mm

0.8 mm

0.8 mm

0.8 mm

1.0 mm

CAUTION

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

3


1-5. Additional Materials Required for Installation

1.

Refrigeration (armored) tape

2.

Insulated staples or clamps for connecting wire

(See local codes)

3.

Putty

4.

Refrigeration lubricant

5.

Clamps or saddles to secure refrigerant tubing

Indoor unit

2. Installation Site Selection

2-1. Indoor Unit

WARNING

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

AVOID:

G direct sunlight.

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

G areas where leakage of flammable gas may be expected.

G placing or allowing any obstructions near the 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 cooled. (High on a wall is best.)

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

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

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

G install the unit within the maximum elevation difference

(H1, H2, H3, H4) above or below the outdoor unit and within a total tubing length (L1+L2, L1+L2+L3,

L1+L2+L3+L4) from the outdoor unit as detailed in Table 3 and Fig. 3a.

H4

5 cm min.

INDOOR

UNIT (1)

Outside drainage

Fig. 1

15 cm min.

Front View

Fig. 2

Tubing length (L1)

Elevation difference (H1) OUTDOOR

UNIT

INDOOR

UNIT (4)

CAUTION

L4

Fig. 3a

L2

Drain hose

5 cm min.

INDOOR

UNIT (2)

L3

INDOOR

UNIT (3)

Indoor unit

For stable operation of the air conditioner, do not install wall-mounted type indoor units less than 1.5 m from floor level.

Minimum height from floor level

1.5 m

H2

H3

Wall

Floor level

Fig. 3b

4


G Install the indoor unit more than 1 meter away from any antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom. Electrical noise from any of these sources may affect operation.

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

Table 3

Model

Max. Allowable

Tubing Length per unit

(m)

Max. Allowable Total Limit of

Tubing Length Total Tubing Length at shipment

(L1+L2) or (L1+L2+L3)

(L1+L2) or (L1+L2+L3) or (L1+L2+L3+L4) or (L1+L2+L3+L4)

(m)

(m)

30 (L1+L2)

45 (L1+L2)

30 (L1+L2)

45 (L1+L2)

Limit of Elevation

(H1, H2, H3, H4)

(m)

GRF148

GRF198

20

25

15

15

GRF248 25 45 (L1+L2+L3+L4) 60 (L1+L2+L3+L4) 15

GRF318 30 45 (L1+L2+L3+L4) 70 (L1+L2+L3+L4) 15

* If total tubing length becomes 45 to 60 m (max.) or 45 to 70 m (max.), charge additional refrigerant (R410A) by 20 g/m.

No additional charge of compressor oil is necessary.

Required Amount

Refrigerant

(g/m) *

–

–

20

20

2-2. Embedding the Tubing and Wiring

G Before beginning embedding installation work, consult fully with agencies or offices related to the building’s foundation, construction, electricity, and water.

G Wait to make connections to the embedded portion.

Each connection step is described later in this manual.

G Securely cover the end of the embedded tubing to prevent intrusion of dirt or moisture.

G If an embedded tube is to be left for a long time, fill the tube with nitrogen and seal both ends securely.

If a tube is left open for an extended time, moisture in the air inside the tubing may condense into water droplets, and lead to water contamination of the refrigerant circuit.

G In order to prevent insulation breakdown and ground faults, do not allow wiring ends to come in contact with rainwater, or be subjected to condensation or dew.

G Apply sufficient thermal insulation to the refrigerant tubing and drain pipes

5


3. How to Install the Indoor Unit

3-1. Remove the Rear Panel from the Unit

(1) Remove and discard the set screw on the rear panel. (Fig. 6)

(2) Press the 2 L marks on the frame cover and disengage the stationary tabs from the frame. (Fig. 7)

(3) Remove the rear panel.

NOTE

Tubing can be extended in 5 directions as shown in

Fig. 8. Select the direction you need providing the shortest run to the outside unit.

G When left tubing is to be done, switch the drain hose and drain cap. (For details, refer to “Switching drain hose and drain cap” on page 14.)

3-2. Make a Hole

(1) Place the rear panel from the indoor unit on the wall at the location selected. Make sure the panel is horizontal, using a carpenter’s level or tape measure to measure down from the ceiling. Wait until after cutting the hole before attaching the rear panel to the wall.

(2) Determine which side of the unit you should make the hole for tubing and wiring. (Fig. 9a or 9b)

NOTE

In the case of left-rear tubing, use the measurement points from the edge of the rear panel for precise placement of the hose outlet. (Fig. 9a or 9b)

(3) Before making the hole, check carefully that no studs or pipes are directly run behind the spot to be cut.

CAUTION

Also avoid areas where electrical wiring or conduits are located.

The above precautions are also applicable if tubing goes through the wall in any other location.

Set screw only for transportation

Fig. 6

Rear panel marks

Fig. 7

Left tubing

Right-rear tubing

(recommended)

Left-rear tubing

70 mm

Fig. 8

Right tubing

Downward tubing

(MCAF78/98/128)

60 mm

Fig. 9a

(MCAF188/248)

Fig. 9b

6


(4) Using a sabre saw, key hole saw or hole-cutting drill attachment, cut a hole in the wall. See Table 4 and Fig. 10.

Table 4

Hole Dia. (mm)

MCAF78/98/128

65

MCAF188/248

80

(5) Measure the thickness of the wall from the inside edge to the outside edge and cut PVC pipe at a slight angle 6 mm shorter than the thickness of the wall. (Fig. 11)

(6) Place the plastic cover over the end of the pipe (for indoor side only) and insert the pipe in the wall.

(Fig. 12)

3-3. Install the Rear Panel on the Wall

Be sure to confirm that the wall is strong enough to suspend the unit.

See either Item a) or b) below depending on the wall type.

a) If Wooden Wall

(1) Attach the rear panel to the wall with the 8 screws provided. (Fig. 13a or 13b)

If you are not able to line up the holes in the rear panel with the beam locations marked on the wall, use rawl plugs or toggle bolts to go through the holes on the panel or drill 5 mm dia. holes in the panel over the stud locations and then mount the rear panel.

(2) Double check with a carpenter’s level or tape measure that the panel is level. This is important to install the unit properly. (Fig. 14)

(3) Make sure the panel is flush against the wall. Any space between the wall and unit will cause noise and vibration.

b) If Block, Brick, Concrete or Similar Type Wall

Make 4.8 mm dia. holes in the wall. Insert rawl plugs for appropriate mounting screws. (Fig. 15)

NOTE

Hole should be made at a slight downward slant to the outdoor side.

I n door s ide

O u tdoor s ide

Fig. 10

PVC pipe (Locally purchased)

Cut at slight angle

Fig. 11

INSIDE

Plastic cover

(Locally purchased)

Wall

OUTSIDE

PVC pipe

Slight angle

Fig. 12

(MCAF78/98/128)

Fig. 13a

(MCAF188/248)

Fig. 13b

Fig. 15

4.

8 mm dia. hole

Rawl pl ug

(Locally p u rcha s ed)

7

Fig. 14


3-4. Remove the Grille to Install the Indoor Unit

3-4-1. Indoor unit types

(MCAF78/98/128)

Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps as given below.

CAUTION

Be sure to wear work gloves during installation to avoid being cut by the sharp aluminum fins of the heat exchanger.

How to remove the grille

(1) Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you.

(Fig. 16a)

(2) Remove the 2 screws. (Fig. 16b)

(3) Remove the screw on the right side cover plate and open the cover. (Fig. 17a)

(4) Take out the thermistor from the grille. (Fig. 17b)

(5) Pull the lower part of the grille towards you to remove.

(Fig. 18a)

(6) Use a standard screwdriver to push on the tabs to remove the grille.

How to replace the grille

(1) Reinstall the grille into the lower part while aligning its tabs on the upper part. (Fig. 18b) Insert the tabs in the slots and push the lower part of the grille back into position.

(2) Make sure that the grille and frame are firmly fitted together by engaging the tabs.

(3) Attach the thermistor on the grille. (Fig. 17a)

(4) Close the cover and replace the screw. (Fig. 17a)

(5) Affix the grille with the 2 previously removed screws.

(Fig. 16b)

(6) Install the air intake grille.

(a) Allow the edge of the air intake grille to slide into the top of the indoor unit, and then insert it all the way inside. (Fig. 19a)

(b) Press the bottom right and left corners of the air intake grille to attach it to the indoor unit. (Fig. 19b)

NOTE

Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit.

Fig. 19b

8

Fig. 18b

Groove

Pin

Grille

Screw cover

Thermistor

Cover

Fig. 16b

Thermi s tor

Tab

Fig. 17a

*

*

Air intake grille

Fig. 16a

Fig. 18a

Fig. 19a

Fig. 17b

Tab

*

*

Grille

Tab

Frame

Grille

Frame


3-4-2. Indoor unit types

(MCAF188/248)

Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps as given below.

How to remove the grille

(1) Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you. (Fig. 16a-1)

(2) Remove the 3 screws. (Fig. 16b-1)

(3) Remove the screw on the right side cover plate and open the cover. (Fig. 17a-1)

(4) Take out the thermistor from the grille. (Fig. 17b-1)

(5) Press the 3 tabs at the top of the grille and the 3 tabs on the front face to separate the grille from the frame. (Fig. 18a-1)

(6) Pull the grill towards you to remove it.

How to replace the grille

(1) When installing the grille, place the bottom of the grille into the frame first. (Fig. 18b-1)

Then insert the tabs on the top of the grille and on the front face into the frame.

(2) Make sure that the grille and frame are firmly fitted together by engaging the tabs.

(3) Attach the thermistor on the grille. (Fig. 17a-1)

(4) Close the cover and replace the screw.

(Fig. 17a-1)

(5) Affix the grille with the 3 previously removed screws. (Fig. 16b-1)

(6) Install the air intake grille.

(a) Allow the edge of the air intake grille to slide into the top of the indoor unit, and then insert it all the way inside. (Fig. 19a-1)

(b) Press the bottom right and left corners and center of the air intake grille to attach it to the indoor unit. (Fig. 19b-1)

NOTE

Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit.

Tab

Air intake grille

Fig. 17a-1

Fig. 16a-1

Tab

Fig. 18a-1

Fig. 18b-1

Groove

Pin

Grille

Thermistor

Cover

Fig. 16b-1

Thermi s tor

Fig. 17b-1

Fig. 19b-1 Fig. 19a-1

9


3-5. Shape the Indoor Side Tubing

(1) Arrangement of tubing by directions a) Right or left tubing

Cut out the corner of the right/left frame with a hacksaw or the like. (Figs. 20 and 21) b) Right-rear or left-rear tubing

In this case, the corner of the frame need not be cut.

(2) To mount the indoor unit on the rear panel:

Hang the 2 mounting slots of the unit on the upper tabs of the rear panel. (Fig. 22)

3-6. Wiring Instructions

General precautions on wiring

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

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

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

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

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

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

Frame

Left t u bi ng o u tlet

Fig. 20

Fig. 21

Frame

Ri g ht t u bi ng o u tlet

Fig. 22

10


3-7. Wiring Instructions for Inter-unit Connections

(1) Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you.

(2) Remove the screw on the right side cover plate and open the cover. (Fig. 24)

(3) Insert the inter-unit wiring into the through-the-wall

PVC pipe. Lead the power wiring into the room allowing approx. 25 cm to extend from the wall face. (Fig. 25)

(4) Route the inter-unit wiring from the back of the indoor unit and pull it towards the front for connection. (Fig. 26)

(5) Connect the inter unit wiring to the corresponding terminals on the terminal plate (Fig. 26) while referring to the wiring diagram.

(6) Be sure to secure the wiring with the provided clamp.

NOTE

When closing the air intake grille, press the bottom right and left corners and center. (Fig. 27)

Please refer to “How to replace the grille” on page 8 or

9 for installing the air intake grille.

Fig. 24

Rear panel

Wiring

25 cm

Fig. 25

Plastic cover

Cover

11

Fig. 26

Fig. 27


WARNING

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

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

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

(1) Cut the wire end with a cutting pliers, then strip the insulation to expose the wire about 7 mm. See the label (Fig. 28) near the terminal plate.

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

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

b) For Outdoor Unit

I

For solid core wiring (or F-cable)

(1) Cut the wire end with a cutting pliers, then strip the insulation to expose the solid wire about 25 mm. (Fig. 29)

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

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

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

I For stranded wiring

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

10 mm and tightly twist the wire ends. (Figs. 30 and 31)

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

(3) Using a ring connector fastener or pliers, securely clamp each stripped wire end with a ring connector. (Fig. 30)

(4) Place the ring connector wire, and replace and tighten the removed terminal screw using a screwdriver. (Fig. 32)

STRIP

SIZE

7 mm (ACTUAL

SIZE)

Fig. 28

Solid wire

Insulation

Fig. 29

Stranded wire

Fig. 30

Twist wire ends

12

Fig. 31

S pecial wa s her

Wire

S crew

Ri ng co nn ector

Termi n al plate

Wire

Fig. 32

Loop

Ring connector

S crew a n d s pecial wa s her

Ri ng co nn ector


3-8. Mounting

(1) To install the indoor unit, mount the indoor unit onto the 2 tabs on the upper part of the rear plate.

(2) Hold down the air discharge outlet and press the lower part of the indoor unit until it clicks to securely fasten to the 2 tabs on the lower part of the rear plate. (Fig. 33)

NOTE

For tubing, choose either the right or left tubing direction and follow the steps below. This work can be made easier by placing padding material (such as styrofoam) at the rear right side of the indoor unit. (Fig. 34)

I Right-side tubing

(1) Shape the refrigerant tubing so that it can easily go into the wall hole. (Fig. 35)

(2) Push the wiring, refrigerant tubing, and drain hose through the hole in the wall. Adjust the indoor unit so it is securely seated on the rear panel. (Fig. 36)

(3) Carefully bend the tubing (if necessary) to run along the wall in the direction of the outdoor unit and then tape as far as the fittings. (See Caution on page 15 in the outdoor unit installation manual.) The drain hose should come straight down the wall to a point where water runoff won’t stain the wall.

(4) Connect the refrigerant tubing to the outdoor unit.

(After performing a leak test on the connecting part, insulate it with the tubing insulation. (Fig. 37))

Also, refer to Section 3-6. Tubing connections in the outdoor unit installation manual.

(5) Assemble the refrigerant tubing, drain hose, and inter-unit wiring as shown in Fig. 37.

Push

Fig. 33

Padding material

Fig. 34

Rear panel

Cover

Refrigerant tubing

Drain hose

Inter-unit wiring

Fig. 35

Fig. 36

Fig. 37

Insulation

13


I Left-side tubing

(1) Lead the tubing and drain hose through the wall, allowing sufficient length for connection. Then bend the tubing using a tube bender to make the attachment. (Fig. 38)

(2) Switch the drain hose and drain cap.

Switching drain hose and drain cap

(a) Locate the drain hose and the drain cap.

(Fig. 39)

(b) Remove the screws fastening the drain hose on the right side, and pull out the drain hose to remove it. (Fig. 39)

(c) Apply moderate force to pull off the drain cap on the left side. (If you cannot pull it off by hand, use a long-nose pliers.)

(d) Reattach the drain hose to the left side and the drain cap to the right side. (Fig. 40a)

Drain hose

Slide the drain hose fully onto the drain pan outlet until the drain hose edge is pushed into the insulation. Check that the screw holes in the drain bracket and the drain pan outlet are aligned and securely in contact, then fasten them with the screw. (After attaching the drain hose, check that it is attached securely.) (Figs. 40b and 40c)

Drain cap

Use a Phillips screwdriver to push the drain cap in firmly. (If it is difficult to push in, wet the cap with water first.)

(3) Install the indoor unit on the rear panel.

(4) Connect the tubing and wiring led inside from outdoors.

(5) After completing a leak test, bundle the tubing together with armoring tape and store it inside the tubing storage area at the back of the indoor unit and hold it with clamps. (Fig. 41)

Hole in wall

Insulation

Bent part

Drain hose

Drain cap

Rear panel

Wide tube

Narrow tube

Fig. 38

Fig. 39

Fig. 40a

Screw hole

Drain cap

Clamp

Drain hose

Drain pan outlet

Drain bracket

Drain hose

Fig. 40c

Drain bracket

Screw

Fig. 40b

Drain hose

Fig. 41

Refrigerant tubing

Inter-unit wiring

14


To unmount indoor unit

Press the 2 L marks on the lower part of the indoor unit and unlatch the tabs. Then lift the indoor unit and unmount. (Fig. 42)

3-9. Drain Hose a) The drain hose should be slanted downward to the outdoors. (Fig. 43) b) Never form a trap in the course of the hose.

c) If the drain hose will run in the room, insulate the hose with insulation* so that chilled condensation will not damage furniture or floors. (Fig. 44)

* Foamed polyethylene or its equivalent is recommended.

WARNING

Do not supply power to the unit or operate it until all tubing and wiring to the outside unit are completed.

Risk of Electric Shock

Push

Fig. 42

Slant

Indoor unit

Fig. 43

Drain hose

4. Multiple Switch on the Remote Control Unit

Indoor Unit Types

(MCAF188R5I, MCAF248R5I)

S/M (Single/Multiple switch)

G Initially, the S/M switch is set to S (Single).

G Set this switch to M (Multiple) for multiple operation.

G Always press ACL button by a thin object such as the tip of a pen after setting the S/M switch.

I nsu latio n material

(Locally p u rcha s ed) m us t be us ed.

Fig. 44

Co n de ns atio n

G Slide the cover in the direction indicated by the arrow and remove it.

G Use a thin object such as the tip of a pen to press the ACL button.

ACL b utton

15


5. How to Test Run the Air Conditioner

After turning on power to the air conditioner, use the remote controller and follow the steps below to conduct the test run.

(1) Set the remote controller in Test Run mode.

(Fig. 59a) a)Press and hold the ION button.

b)Then press and hold the 1HR. TIMER button.

c) At the same time, press the ACL (reset) button once. Use a pointed object such as the tip of a pen to press the ACL button.

• After a few seconds, “ ” appears and “oP-1” blinks in the remote controller display area.

(Fig. 59b) d) Release the 1HR. TIMER button.

e) Release the ION button.

(2) Start Cooling mode test run by pressing the

ON/OFF operation button of the remote controller.

(Fig. 59a)

• This starts the fan producing uncooled forced air with the 4 indicator lamps (OPERATION lamp,

TIMER lamp, QUIET lamp, and ION lamp) on the main unit blinking. (Fig. 60)

• After 3 minutes, the system shifts into cooling operation, and cool air will start to be felt. Cool mode test run is unaffected by the room temperature.

(3) Press the ON/OFF operation button of the remote controller again to stop the test run. (Fig. 59a)

(4) Finally press the ACL (reset) button of the remote controller to release it from Test Run mode to return to normal mode. (Fig. 59a)

• “ ” and “oP-1” will disappear from the remote controller display area.

IMPORTANT

After the test run is completed, be sure to press the ACL (reset) button to return to normal mode.

The air conditioner will not operate correctly if this is not done.

ION button

ON/OFF operation button

1HR.

TIMER button

Fig. 59a

ACL

(Reset) button

Fig. 59b

OPERATION

TIMER

QUIET

ION

OPERATION

OPERATION lamp

TIMER lamp

QUIET lamp

ION lamp

Fig. 60

16


6. Remote Control Unit Installation Position

The remote control unit can be operated from either a non-fixed position or a wall-mounted position.

G

G

G

G

G

G

To ensure that the air conditioner operates correctly, do not install the remote control unit in the following places:

In direct sunlight

Behind a curtain or other place where it is covered

More than 8 m away from the air conditioner

In the path of the air conditioner’s airstream

Where it may become extremely hot or cold

Where it may be subject to electrical or magnetic interference

G Where there is an obstacle between the remote control unit and the air conditioner (since a check signal is sent from the remote control unit every 5 minutes)

6-1. Mounting on a Wall

Before mounting the remote control unit, press the

ON/OFF operation button at the mounting location to make sure that the air conditioner operates from that location. The indoor unit should make a beeping sound to indicate that it has received the signal.


Rear s ide

Pre ss

Mountin g s crew s

4 16 (included)

S et in p lace

Hole

To prevent loss of the remote control unit, you can connect the remote control unit to the mount by passing a string through the remote control unit and attachment hole.


Fig. 61

17


7. Address Switch

7-1. Address Setting of the Remote Control Unit

The address can be set in order to prevent interference between remote controllers when two indoor units are installed near each other. The address is normally set to “A.” To set a different address, it is necessary to change the address on the second remote controller.

NOTE

Once changed, you cannot restore the original address setting of the air conditioner.

(1) Switch on the power source.

(2) Break the address-setting tab marked “A” on the second remote controller to change the address

(Fig. 62). When the tab is removed, the address is automatically set to B (Fig. 63).

(3) Press and hold the remote controller ION button and 1 HR. TIMER button. At the same time, press the ACL(reset) button. Use a thin object such as the tip of a pen to press the ACL button. When this has been done, “oP-1” (test run) appears, blinking, in the remote controller clock display area.

(4) Each time the 1 HR. TIMER button is pressed, the display changes as shown below. Press this button 2 times to change the display to “oP-7”

(address setting). (Fig. 64)

Te s t r un mode

S elfdia gn o s tic mode

Addre ss s etti ng mode

(5) “oP-7” has now been selected for address setting.

(6) Press the ON/OFF operation button on the remote controller. (Fig. 64) Check that the “beep”signalreceived sound is heard from the second indoor unit (approximately 5 times). The sound you hear is the signal that the remote controller address has been changed.

(7) Finally press the remote controller ACL (reset) button to cancel the blinking “oP-7” display.

(Fig. 64)

Changing of the second remote controller address is now completed.

ION button

ADDRESS

Tab

Fig. 62

Fig. 63

Fig. 64

ACL button


1 HR.TIMER button

ACL (Reset) button

18


8. Connecting a Home Automation device

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

Also, refer to Section 9. ELECTRIC WIRING DIAGRAM in the outdoor unit installation manual.

9. Installation Check Sheet

The strength of the installation location is sufficient to support the Air Conditioner weight.

The indoor and outdoor units are installed level and vertically.

The power and voltage are as specified.

Inter-unit cables are securely inserted into the terminal block.

Inter-unit cables are securely fixed.

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

The ground wire is securely connected.

Thermal insulation has been applied to the tubing connections.

Drain connections are secure and water drains properly.

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

Remote controller signals are being positively received.

19

R.D. 28 Reyrieux BP 131 - 01601 Trevoux CEDEX France

Tel. (33) 04.74.00.92.92 - Fax (33) 04.74.00.42.00

http://www.technibel.com

Technibel MCAF98MR5I Technical & Service Manual 107 Pages

Technibel MCAF98MR5I Technical & Service Manual

TECHNICAL &

SERVICE MANUAL

INDOOR UNIT : MCAF78MR5I

MCAF98MR5I

MCAF128MR5I

MCAF188R5I

MCAF248R5I

FILE NO.

DC INVERTER MULTI-SYSTEM AIR CONDITIONER

Wall Mounted Type Indoor Unit

RoHS

WARNING

700739

Important!

Please Read Before Starting

SPECIAL PRECAUTIONS

Table of Contents

APPLICABLE MULTI-OUTDOOR UNITS

1. OPERATING RANGE

2. SPECIFICATIONS

2-1. Unit Specifications

2-2. Major Component Specifications

2-2-1. Indoor Unit

2-3. Other Component Specifications

3. DIMENSIONAL DATA

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

5. PERFORMANCE DATA

5-1. Air Throw Distance Charts

6. ELECTRICAL DATA

6-1. Electric Wiring Diagrams

7. FUNCTIONS

7-1. Operation Functions

Emergency operation

AUTO cooling/heating operation

SENSOR DRY

PAM- control

HIGH POWER

Lamp colors

NIGHT SETBACK

Timer backup

7-2. Protective Functions

Overload prevention during heating

Freeze prevention

Cold-air prevention during heating

8. TROUBLESHOOTING

8-1. Precautions before Performing Inspection or Repair

8-2. Method of Self-Diagnostics

NOTE

PROCEDURE

8-3. Checking the Indoor and Outdoor Units

8-4. Trouble Diagnosis of Fan Motor

8-4-1. Indoor Fan Motor

8-5. Noise Malfunction and Electromagnetic Interference

APPENDIX A INSTRUCTION MANUAL

MCAF78MR5I

MCAF98MR5I

MCAF128MR5I

OPERATING INSTRUCTIONS • INSTRUCCIONES DE USO

NOTICE D’UTILISATION • BEDIENUNGSANLEITUNG

ISTRUZIONI D’USO

This air conditioner uses the new refrigerant R410A

Save These Instructions • Guardéis estas instrucciones

Conserver ce notice d’utilisation • Bewahren Sie bitte diese Bedienungsanleitung auf

Conservate queste istruzioni

Split air conditioner system • Acondicionador de aire de consola partida sistema split

Climatiseurs split • Split-klimagerät • Condizionatore d’aria split system

Features

Contents

Product Information

Alert Symbols

Installation Location

Electrical Requirements

Safety Instructions

Names of Parts

Using the Remote Control Unit

Operation with the Remote Control

Unit