Mitsubishi Electronics MS09NW, MU09NW, MUM30NN, MS12NN, MU12NN User Manual

SPLIT-TYPE AIR CONDITIONERS

SERVICE MANUAL

Wireless type Models

Revision:

● MS09NW2, MS12NN2, MS15NN2 and MS17NN2 has been added.

● Parts List has been partially modified.

● Please void OB192 REVISED EDITION -A.

No. OB192

REVISED EDITION -B

MS09NW MS12NN MS15NN MS17NN MS09NW2 MS12NN2 MS15NN2 MS17NN2

MS12NN MS12NN2 MS15NN MS15NN2 MS17NN MS17NN2 INDOOR UNIT

MU12NN MU12NN2 MU15NN MU15NN2 MU17NN MU17NN2 OUTDOOR UNIT

(W)

· MU09NW MUM30NN

(W)

· MU12NN MUM30NN2

(W)

· MU15NN

(W)

· MU17NN

(W)

· MU09NW2

(W)

· MU12NN2

(W)

· MU15NN2

(W)

· MU17NN2

CONTENTS

1. FEATURES ························································2

2.TECHNICAL CHANGES ····································4

3. PART NAMES AND FUNCTIONS······················5

4. SPECIFICATIONS ··············································7

5. DATA ································································12

Remote controller

6. OUTLINES AND DIMENSIONS ······················23

7. W IRING DIAGRAM ··········································26

8. REFRIGERANT SYSTEM DIAGRAM··············32

9. MICROPROCESSOR CONTROL ····················35

10. SERVICE FUNCTIONS ····································43

11. TROUBLESHOOTING ······································44

12. DISASSEMBLY INSTRUCTIONS ····················59

13. PARTS LIST······················································70

14. OPTIONAL PARTS ··········································7 9

The Slim Line. From Mitsubishi Electric.

Refer to our Service Manual OB202 when the indoor unit is used in the multi-system operation. Applied models are MS09NW and MS15NN.

L

R

D

I

S

E

T

Revision:

●The following parts numbers have been modified.

1. OUTDOOR P.C. BOARD of MUM30NN (T2W 800 451 ➔ T2W E46 451)

2. SURGE KILLER of MUM30NN (T2W E64 410 has been added)

3. CAPILLARY TUBE (for 09A, 09B) of MUM30NN (M21 463 936 ➔ M21 195 936) (See REFRIGERANT SYSTEM)

4. CAPILLARY TUBE (for 15C) of MUM30NN (M21 987 936 ➔ M21 G46 936) (See REFRIGERANT SYSTEM)

5. CAPILLARY TUBE (for 09A, 09B) of MUM30NN2 (M21 463 936 ➔ M21 AP9 936) (See REFRIGERANT SYSTEM)

6. CAPILLARY TUBE (for 15C) of MUM30NN2 (M21 987 936 ➔ M21 G46 936) (See REFRIGERANT SYSTEM)

7. HIGH PRESSURE SWITCH of MUM30NN2 (Q’ty/unit 1 ➔ 3)

8. MC1. MC2. CAPACITOR of MUM30NN2 (T2W 738 353 ➔ T2W 903 353)

●Please void OB192REVISED EDITION -B.

1

MS09NW MS09NW2 8,500Btu/h 10.2 MS12NN MS12NN2 12,300/12,600Btu/h 11.3/11.3 MS15NN MS15NN2 14,300/14,600Btu/h 10.5/10.5 MS17NN MS17NN2 15,900/16,100Btu/h 10.2/10.2

FEATURES

LCD wireless

MS12NN MS15NN MS17NN MS12NN2 MS15NN2 MS17NN2

Models Cooling capacity SEER

remote controller

MU12NN MU15NN MU17NN MU12NN2 MU15NN2 MU17NN2

NEW “I FEEL CONTROL” IN OUR LCD WIRELESS REMOTE CONTROLLER WITH ON/OFF PROGRAM TIMER

Mitsubishi Electric’s new wireless remote controller incorporates a number of advanced features that provide even greater con-

trol and ease-to- use. It has a liquid crystal display which indicates such information as mode, fan speed and temperature selected as well as the programmed ON/OFF time.It is also equipped with “I Feel Control”, a unique Mitsubishi Electric feature that allows the user to adjust the temperature to exactly the level he or she wants simply by tapping the button that describes present conditions : “Too Cool” or “Too Warm”.The optimum temperature set this way is then memorized for immediate recall whenever the air conditioner is used again.And what’s more, the new controller has been redesigned and easier to handle than before.

Select desired air flow direction. REMOTE-CONTROL OPERATION MODE

Using the remote controller, you can select from five airflow set-

tings to match room layout and the location of people.Also, you can set the vane to swing automatically.

SWING

2

Small in size, big on cooling. COMPACT INDOOR UNIT

The sleek design of the NW/NN Series matches virtually any room

13

layout.For instance, MS09 is 10 which used to be 14

3

/16o 311/8o 53/8.

/16o 321/16o 73/16(Ho W o D),

1013/16

MS09NW MS09NW2

AUTO-RESTART FUNCTION

The auto restart function restar ts the equipment when power is restored following an outage automatically. Operation resumes in the mode in which the equipment was running immediately before the outage.

HIGH PERFORMANCE ROTARY COMPRESSOR

The advanced design of Mitsubishi Electric’s powerful and energy efficient rotary compressor results in lower operating costs and longer service life.

MSM30NN MSM30NN2

This “3 to 1” Multi system (MSM30NN / MSM30NN2) consists of a single outdoor unit with three compressors that permit up to three indoor units to be installed separate rooms, each with its own controller.

MS09NW (A)

Cooling Capacity (BTU/h)

Operation

Indoor unit

1 Indoor Unit Operation

2 Indoor Unit Operation

3 Indoor Unit Operation

MS09NW

8,200

—

— 8,200 8,200

— 8,100

MS09NW (B)

MS09NW

—

8,200

—

8,200

— 8,200 8,100

LCD Wireless remote controller

MS15NN

— —

12,400

— 12,400 12,400 12,200

MS15NN (C)

MUM30NN MUM30NN2

SPACE-SAVING LAYOUT

Two or three indoor units are served by a single outdoor unit whose installation requires only minimum space. This allows equipment installed outside the house to be arranged in a neat, space-saving layout.

FLEXIBLE INSTALLATION OF INDOOR UNITS

Each indoor unit can be connected to piping up to 65 feet in length, providing plenty of freedom in determining the best locations for installation.

3

2

➔

TECHNICAL CHANGES

MS09EW➔ MS09NW

1. Indoor unit has been changed. (Outline dimension changes. 31-1/8” o 5-3/8” o 14-3/16”(W o Do H)➔32-1/16” o 7-3/16” o 10-13/16(W o D o H)

2. Outdoor unit has been changed. (Outline dimension changes. 29-15/16” o 9-1/16” o 21-1/4”(W o Do H)➔30-11/16” o 10-1/16” o 21-1/4”(W o D o H))

(Capillary tube, refrigerant and pipe had changed.)

3. Remote controller has been changed. (The timer function was changed to the clock timer function.)

4. Indoor auto vane has been adopted.

MS12EN, MS15EN ➔ MS12NN, MS15NN

1. Indoor unit has been changed. (Outline dimension changes. 39-3/8” o 7” o 14-3/16”(W o Do H)➔39-15/16” o 7-1/2” o 12-5/8”(W o D o H))

2. Outdoor unit has been changed. (Outline dimension changes. 33-1/2” o 11-7/16” o 23-7/8”(W o Do H)➔33-7/16” o 11-7/16” o 23-13/16”(W o D o H))

(Capillary tube, refrigerant and pipe had changed.)

3. Remote controller has been changed. (The timer function was changed to the clock timer function.)

4.The swing mode has been added to indoor auto vane.

MSM30EN2➔ MSM30NN

1. Indoor unit has been changed.

2. Outdoor unit has been changed.

3. Remote controller has been changed. (The timer function was changed to the clock timer function.)

4.The swing mode has been added to indoor auto vane.

5. Outdoor unit fan speed control has been changed.(MF1/MF2 : 1.Lo/Lo➔Stop/Hi 2.Me/Me➔Me/Me 3.Hi/Hi➔Hi/Hi)

6.The relay “X64” has been added to electric circuit.

7. Surge absorber has been added to electric circuit.

MSM30NN➔ MSM30NN2

1. Outdoor unit has changed.

2. Compressor has changed. (Compressor A,B: KH122WEV➔KH122WES)

3. Outdoor unit fan speed control has changed.(MF1/MF2 : 1.Stop/Hi➔Lo/Lo 2.Me/Me➔Lo/Lo 3.Hi/Hi➔Hi/Hi)

4.Wiring diagram has been changed.

5. Capillar y tube has been changed.

6. Accumulator has been enlarged.(Refrigerant cycle A and B)

7. High-pressure switch has been added.

8. Outdoor unit heat exchanger has changed.

MS09NW➔ MS09NW2 MS12NN MS15NN MS17NN

1. Power supplied way has changed from “supply to both indoor and outdoor” to “supply to only outdoor”. (“Supply to both indoor and outdoor” as before is also possible.)

2. Remote controller has changed. (•The timer function has changed from program timer to ON/OFF timer.

NW/NN system can be used ON and OFF timer in combination. In NW2/NN2 systems, either ON or OFF is available at a time.

•SWING button is removed, but SWING MODE function is available by VANE CONTROL button.)

3.The number of conduit holes on the outdoor unit has changed from 2 to 3.

MS12NN2 MS15NN2 MS17NN2

4

3

PART NAMES AND FUNCTIONS

INDOOR UNIT

MS09NW MS09NW2

Operation section

(When the front panel is opened)

MS09NW MS09NW2

MS12NN MS12NN2 MS15NN MS15NN2 MS17NN MS17NN2

MS09NW MS09NW2

MS12NN MS12NN2 MS15NN MS15NN2 MS17NN MS17NN2

OUTDOOR UNIT

MU09NW MU09NW2

Emergency operation switch

Air inlet (back and side)

Piping

Drainage hose

Air outlet

MS12NN MS12NN2 MS15NN MS15NN2 MS17NN MS17NN2

MS12NN

MU12NN MU12NN2 MU15NN MU15NN2 MU17NN MU17NN2

Air inlet (back and side)

Piping

Drainage hose

Air outlet

Drain outlet

5

MUM30NN MUM30NN2

OUTDOOR UNIT

MS09NW MS12NN MS15NN MS17NN

REMOTE CONTROLLER

Signal transmitting section

Operation display section

OPERATE/STOP (ON/OFF)button

OPERATION SELECT button

FAN SPEED CONTROL button

ON-TIMER button

CLOCK SET button

HR. button

MIN. button

(TIME SET button)

TEMPERATURE button

VANE CONTROL button

SWING button

OFF-TIMER button

RESET button

MS09NW2 MS12NN2 MS15NN2 MS17NN2

REMOTE CONTROLLER

Signal transmitting section

Operation display section

TOO

WARM

I FEEL COOL

DRY FAN

VANE

TIME

RESET

Hr

TOO

COOL

TEMPERATURE button

VANE CONTROL button

TIME SET button

RESET button

OPERATE/STOP (ON/OFF)button

OPERATION SELECT button

FAN SPEED CONTROL button

TIMER MODE SELECT button

ON/OFF

MODE

FAN

SELECT

TIMER CONTROL

6

4

When MS09NW indoor unit is operating with MUM18NW, MUM30NN and MUM30NN2 outdoor unit connected. (Please refer to the manual No.OB202 for MUM18NW.)

SPECIFICATIONS

ITEM MODELS

Cooling capacity Power consumption EER [SEER] INDOOR UNIT MODEL External finish Power supply Max. fuse size (time delay) Min. ampacity Fan motor

Airflow Lo—Me—Hi Moisture removal

Sound level Lo-Me-Hi Cond. drain connection O.D.

Dimensions Weight

OUTDOOR UNIT MODEL External finish Power supply Max. fuse size (time delay) Min. ampacity Fan motor

Compressor

Refrigerant control Sound level

Dimensions Weight

REMOTE CONTROLLER Control voltage (by built-in transformer) REFRIGERANT PIPING

Pipe size Connection method

Between the indoor & outdoor units Refrigerant filling capacity (R-22) Refrigerant oil (Model)

Dry Wet

W D H

Model Winding resistance (at 68˚F) "

W D H

Liquid Gas Indoor Outdoor Height difference Piping length

w1 w1 w1

Btu/h

V, phase, Hz

F.L.A

CFM CFM

Pints/h

dB(A)

V, phase, Hz

F.L.A

R.L.A L.R.A

dB(A)

W

in. in. in. in.

lbs

in. in. in.

lbs

in. in.

lbs

cc

A A

ft ft

MS09NW

8,500

840

10.1 (10.2)

MS09NW

0.37 208-265-328 177-226-279

31-37-42

32-1/16

7-3/16

10-13/16

MU09NW

115, 1, 60

0.66

KH122WES

C-R 0.98 C-S 2.21

30-11/16

10-1/16

21-1/4

2 lbs 2 oz

270 (MS56)

MS09NW2

White

115, 1, 60

15

0.5

2.3 5/8

18

MU09NW2

Munsell 5Y6.5/1

15

14

10 37

Capillary tube

46

64

Wireless type

12V DC

Not supplied (optional parts)

1/4

3/8

Flared

Flared Max. 25 Max. 49

MS12NN

12,300/12,600

1,100/1,130

11.2/11.2 (11.3/11.3)

MS12NN

0.6

0.43 360-395-452 314-342-392

3.2

36-39-42 39-15/16

7-1/2

12-5/8

31

MU12NN

208/230, 1, 60

12

0.52

RH167NHDT

C-R 2.16 C-S 3.11

9

29

52 33-7/16 11/7/16

23-13/16

92

5/8

2 lbs 14 oz

520 (MS56)

MS12NN2

MU12NN2

Notes w1 : Test conditions are based on ARI 210/240

Rating conditions (cooling) — Indoor : 80-FDB, 67-FWB, Outdoor : 95-FDB, 75-FWB

Operating Range

Indoor intake air temperature

Cooling

Maximum

Minimum

95-FDB, 71-FWB 67-FDB, 57-FWB

Outdoor intake air temperature

115-FDB

67-FDB

7

When MS15NN indoor unit is operating with MUM30NN and MUM30NN2 outdoor unit connected. (Please refer to the manual No.OB202 for MUM18NW.)

Item Model

Cooling capacity Power consumption EER [SEER] INDOOR UNIT MODEL External finish Power supply Max. fuse size (time delay) Min. ampacity Fan motor

Airflow Lo—Me—Hi Moisture removal

Sound level Lo-Me-Hi Cond. drain connection O.D.

Dimensions Weight

OUTDOOR UNIT External finish Power supply Max. fuse size (time delay) Min. ampacity Fan motor

Compressor

Refrigerant control Sound level

Dimensions Weight

REMOTE CONTROLLER Control voltage (by built-in transformer) REFRIGERANT PIPING

Pipe size Connection method

Between the indoor & outdoor units Refrigerant filling capacity (R-22) Refrigerant oil (Model)

Dry Wet

W D H

Model Winding resistance (at 68˚F) "

W D H

Liquid Gas Indoor Outdoor Height difference Piping length

w1 w1 w1

Btu/h

V, phase, Hz

F.L.A

CFM CFM

Pints/h

dB(A)

V, phase, Hz

F.L.A

R.L.A L.R.A

dB(A)

in. in. in. in.

lbs

in. in. in.

lbs

in. in.

lbs

cc

W

A A

ft ft

MS15NN

14,300/14,600

1,370/1,400

10.4/10.4 (10.5/10.5)

MS15NN

0.6

0.43 360-395-452 293-321-367

4.7

36-39-42

MU15NN

14

RH207NHDT

C-R 1.68 C-S 2.78

10 35

52

92

2 lbs 14 oz

520 (MS56)

MS15NN2

115, 1, 60

39-15/16

12-5/8

MU15NN2

Munsell 5Y6.5/1

208/230, 1, 60

Capillary tube

33-7/16 11-7/16

23-13/16

Wireless type

12V DC

Not supplied (optional parts)

Flared

Flared Max. 25 Max. 49

MS17NN

15,900/16,100

1,570/1,600

10.1/10.1 (10.2/10.2)

MS17NN

White

15

406-441-491 346-374-417

5/8

7-1/2

31

MU17NN

20

0.52 RH231NHDT

C-R 1.65 C-S 2.67

1/4 5/8

520 (MS56)

MS17NN2

0.7

0.51

5.1

40-43-45

MU17NN2

15

11 38

52

97

3 lbs

Notes w1 : Test conditions are based on ARI 210/240

Rating conditions (cooling) — Indoor : 80-FDB, 67-FWB, Outdoor : 95-FDB, 75-FWB

Operating Range

Indoor intake air temperature

Cooling

Maximum

Minimum

95-FDB, 71-FWB 67-FDB, 57-FWB

Outdoor intake air temperature

115-FDB

67-FDB

8

Items

Model

Cooling capacity w1 BTU/h

w1 WPower consumption EER (Triple unit operation) SEER (Triple unit operation)

Triple-Unit

A+B+C

28,400

2,990

DoubIe-Unit

MSM30NN

A+B

A+C or B+C

16,400 20,600

1,860

2,060

9.5

10.0

Single-Unit

A or B

C

8,200 12,400

990

1,220

INDOOR UNIT MODEL Extenal finish Power Supply V, Hz, Phase Max. fuse size (time delay) Min. ampacity Fan motor

Airflow Lo-Me-Hi

Dry Wet

Moisture removal

Sound level

Cond. drain connection OD

W

Dimensions

D H

Weight

F.L.A CFM CFM

(Pints/h)

dB (A)

in. in. in. in.

lbs. OUTDOOR UNIT MODEL External fnish

Sound level

Power supply

dB (A)

V, Hz, Phase Max. fuse sizu (time delay) Min. ampacity Fan motor

F.L.A

Model

Compressor

Winding resistance (at 68˚F) "

R.L.A L.R.A

Refrigerant control

in. in. in.

lbs.

Dimensions Weight

W D H

REMOTE CONTROLLER Control voltage (be built-in transformer) REFRIGERANT PIPING

Pipe size Connection

method Between the

indoor & outdoor units

Liquid Gas Indoors Outdoors Height difference Piping length

Refrigerant filling capacity (R-22) Refrigerant oil (Model)

in. in.

lbs.

cc

A B

MS09NW

C

MS15NNMS09NW

White

115,60,1

A

0.5

0.37 208-265-328 177-226-279

2.1 5/8

32-1/16

7-3/16

10-13/16

18

15.0

0.5

0.37 208-265-328 177-226-279

2.1 42

5/8

32-1/16

7-3/16

10-13/16

18

0.6

0.43 360-395-452 314-342-392

3.2 4242

5/8

39-15/16

7-1/2

12-5/8

31

MUM30NN

Munsell 5Y 7/1

Max. 57

208/230,60,1(3-wire)

A

30 25

0.8+0.7

KH122WEV<115V> RH167NAB<208/230V>

C-R 0.97 C-S 4.81 C-R 2.47 C-S 4.62

10 8 37 29

Capillary tube

37-7-16

15-3/8

45-5/16

240

Wireless type

DC12V

Not supplied (optional parts) 1/4 1/4 3/8 5/8

Flared Flared

Flared Flared ft ft

Max. 25 Max. 25 Max. 65

3 lbs 3 oz

270 (MS56)

Max. 65

3 lbs 8 oz

520 (MS56)

Notesw1. Test conditions are based on ARI 210/240 Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB

Operating Range

Cooling

Maximum Maximum

Indoor air intake temperature

90˚FDB,71˚FWB 67˚FDB,57˚FWB

Outdoor air intake temperature

115˚FDB

67˚FDB

9

Items

Model

Triple-Unit

A+B+C

Cooling capacity w1BTU/h

w1WPower consumption

28,400

2,870 EER (Triple unit operation) SEER (Triple unit operation)

INDOOR UNIT MODEL Extenal finish Power Supply V, Hz, Phase Max. fuse size (time delay)

A Min. ampacity Fan motor

Airflow Lo-Me-Hi

Dry

Wet Moisture removal Sound level Cond. drain connection OD

W Dimensions

D

H Weight

F.L.A CFM CFM

(Pints/h)

dB (A)

in. in. in. in.

lbs. OUTDOOR UNIT MODEL External fnish Sound level Power supply Max. fuse sizu (time delay)

dB (A)

V, Hz, Phase

A Min. ampacity Fan motor

F.L.A

Model

Compressor

Winding resistance (at 68˚F) "

R.L.A L.R.A

Refrigerant control

in. in. in.

lbs.

Dimensions Weight

W D H

REMOTE CONTROLLER Control voltage (be built-in transformer) REFRIGERANT PIPING

Pipe size Connection

method Between the

indoor & outdoor units

Liquid Gas Indoors Outdoors Height difference

Piping length Refrigerant filling capacity (R-22) Refrigerant oil (Model)

in. in.

ft ft

lbs.

cc

DoubIe-Unit

A+B

16,400

1,830

A B

MS09NW

0.5

0.37 208-265-328 177-226-279

2.1 5/8

32-1/16

7-3/16

10-13/16

18

KH122WES<115V> RH167NAB<208/230V>

C-R 0.98 C-S 2.21 C-R 2.47 C-S 4.62

10 8 37 29

Not supplied (optional parts) 1/4 1/4 3/8 5/8

Flared Flared

Flared Flared Max. 25 Max. 25 Max. 65

2 lbs 14 oz

270 (MS56)

MSM30NN2

A+C or B+C

20,600

2,060

9.9

10.0

MS09NW

White

115,60,1

15.0

0.5

0.37 208-265-328 177-226-279

2.1 42

5/8

32-1/16

7-3/16

10-13/16

18

MUM30NN2

Munsell 5Y 7/1

Max. 57

208/230,60,1(3-wire)

30 25

0.8+0.7

Capillary tube

37-7/16

15-3/8

45-5/16

244

Wireless type

DC12V

A or B

8,200

990

Single-Unit

C

12,400

1,260

C

MS15NN

0.6

0.43 360-395-452 314-342-392

3.2 4242

5/8

39-15/16

7-1/2

12-5/8

31

Max. 65

3 lbs 1 oz

520 (MS56)

Notesw1. Test conditions are based on ARI 210/240

Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB

Operating Range

Indoor air intake temperature

Cooling

Maximum Maximum

90˚FDB,71˚FWB 67˚FDB,57˚FWB

Outdoor air intake temperature

115˚FDB

67˚FDB

10

MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Additional piping

Models

MS09NW MS09NW2

MS12NN MS12NN2 MS15NN MS15NN2 MS17NN MS17NN2

Max. length : ft

A

49

MAX. HEIGHT DIFFERENCE

w Height difference

should be within 25ft regardless of which unit, indoor or outdoor position is high.

Indoor unit

w Max. Height

difference 25ft

Piping size O.D. : in. Length of connecting pipe : in.

Gas

[ 3/8

[ 5/8

Liquid

[ 1/4

Additional Piping Max. length

A

Indoor unit

16-15/16

Outdoor unit

0

MSM30NN MSM30NN2

Model

MS09NW MS15NN

Additional piping

Max. length : ft

A

65

MAX. HEIGHT DIFFERENCE

Indoor unit A

MS09NW

Max. Length 65ft

Outdoor unit MUM30NN MUM30NN2

Piping size O.D. : in.

Gas Liquid Indoor unit

[3/8 [5/8

Indoor unit B

MS09NW

Max. Length 65ft

w Max. Height difference 25ft

[1/4

Indoor unit C

MS15NN

Max. Length 65ft

w Max. Height difference 25ft

Length of connecting pipe : in.

Outdoor unit

16-15/16

w Max. Height difference 25ft

0

11

5

DA T A

1. PERFORMANCE DATA

1) COOLING CAPACITY

MS09NW MS12NN MS15NN MS17NN MS09NW2 MS12NN2 MS15NN2 MS17NN2

TC

8.5

7.9

7.3

12.6

11.7

10.8

14.6

13.6

12.5

16.1

15.0

13.8

)

SHC

TPC

TC

4.8

0.93

7.8

5.5

0.89

7.3

6.1

0.86

6.6

7.3

1.25

11.6

8.3

1.20

10.8

9.1

1.15

9.8

7.5

1.55

13.4

8.8

1.48

12.5

9.8

1.43

11.4

8.3

1.77

14.8

9.7

1.70

13.8

10.8

1.63

12.6

Indoor air Outdoor intake air DB temperature (˚F

Model

MS09NW

MS09NW2

MS12NN

MS12NN2

MS15NN

MS15NN2

MS17NN

MS17NN2

Notes 1. IWB : Intake air wet-bulb temperature. TC : Total Capacity (x10 TPC : Total Power Consumption (kW)

2. SHC is based on 80˚F of indoor intake air DB temperature.

IWB

(˚F)

71 67 63 71 67 63 71 67 63 71 67 63

3

Btu/h), SHC : Sensible Heat Capacity (x103Btu/h)

75 85 95 105 115

TC

SHC

TPC

10.4

5.9

0.75

9.9

6.9

0.71

9.3

7.7

0.67

15.4

11.6

1.01

14.6

10.4

0.95

13.7

8.9

0.90

17.9

9.2

1.25

16.9

11.0

1.18

15.9

12.5

1.12

19.7

10.2

1.42

18.7

12.1

1.34

17.5

13.7

1.28

TC

9.7

9.2

8.6

14.4

13.6

12.7

16.7

15.8

14.7

18.4

17.4

16.3

SHC

5.5

6.4

7.2

8.3

9.7

10.7

8.6

10.2

11.6

9.5

11.3

12.7

TPC

0.82

0.78

0.74

1.10

1.05

1.00

1.37

1.30

1.24

1.56

1.48

1.42

TC

9.1

8.5

8.0

13.5

12.6

11.8

15.7

14.6

13.7

17.3

16.1

15.1

SHC

5.2

6.0

6.7

7.8

8.9

10.0

8.1

9.5

10.8

8.9

10.5

11.9

TPC

0.88

0.84

0.80

1.19

1.13

1.08

1.47

1.40

1.34

1.68

1.60

1.53

MS09NWo2 MS15NNo1 MUM30NN .

PERFORMANCE DATA (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)

Indoor air Outdoor intake air DB temperature (˚F

Model

MS09NW

MS15NN

IWB

(˚F)

71 67 63 71 67 63

75 85 95 105 115

TC

SHC

TPC

TC

SHC

TPC

TC

10.05

5.89

0.88

9.39

5.51

0.97

8.82

9.51

6.85

0.83

8.86

6.38

0.92

8.20

8.94

7.63

0.79

8.28

7.07

0.88

7.71

15.19

8.76

1.09

14.20

8.19

1.19

13.33

14.38

10.21

1.03

13.39

9.51

1.13

12.40

13.52

11.40

0.98

12.52

10.56

1.08

11.66

SHC

5.17

5.90

6.58

7.69

8.80

9.83

TPC

1.04

0.99

0.95

1.28

1.22

1.17

TC

8.20

7.63

7.01

12.40

11.53

10.60

)

SHC

TPC

TC

4.81

1.09

7.54

5.49

1.05

7.01

5.98

1.01

6.40

7.15

1.35

11.41

1.29

1.24

10.60

9.67

8.19

8.94

MS09NWo2 MS15NNo1 MUM30NN2 .

PERFORMANCE DATA (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)

Indoor air Outdoor intake air DB temperature (˚F

Model

MS09NW

MS15NN

Notes 1. IWB : Intake air wet-bulb temperature TC : Total Capacity (x10 TPC : Total Power Consumption (kW)

2. SHC is based on 80˚Fof indoor intake air DB temperature.

IWB

)

(

F

˚

71 67 63 71 67 63

10.05

15.19

14.38

13.52

3

Btu/h), SHC : Sensible Heat Capacity (x103Btu/h)

75 85 95 105 115

TC

SHC

TPC

TC

SHC

TPC

TC

5.89

0.88

9.39

5.51

0.97

8.82

9.51

6.85

0.83

8.86

6.38

0.92

8.20

8.94

7.63

0.79

8.28

7.07

0.88

7.71

8.76

1.12

14.20

8.19

1.23

13.33

10.21

1.06

13.39

9.51

1.17

12.40

11.40

1.01

12.52

10.56

1.12

11.66

2) COOLING CAPACITY CORRECTIONS

)

65ft

-

0.878

Model

MS09NW MS09NW2

MS12NN MS12NN2 MS15NN MS15NN2 MU17NN MS17NN2

MUM30NN MUM30NN2

25ft (std)

1.0

Refrigerant piping length (one way

40ft

0.954

49ft

0.927

SHC

5.17

5.90

6.58

7.69

8.80

9.83

TPC

1.04

0.99

0.95

1.32

1.26

1.20

TC

8.20

7.63

7.01

12.40

11.53

10.60

)

SHC

TPC

TC

4.81

1.09

7.54

5.49

1.05

7.01

5.98

1.01

6.40

7.15

1.39

11.41

8.19

1.34

10.60

8.94

1.29

9.67

SHC

4.4

5.1

5.5

6.7

7.6

8.3

6.9

8.1

8.9

7.7

8.9

9.8

SHC

4.43

5.05

5.46

6.58

7.53

8.16

SHC

4.43

5.05

5.46

6.58

7.53

8.16

TPC

0.97

0.93

0.89

1.30

1.25

1.20

1.61

1.55

1.48

1.84

1.78

1.70

TPC

1.14

1.10

1.05

1.40

1.35

1.29

TPC

1.14

1.10

1.05

1.45

1.40

1.37

12

2. PERFORMANCE CURVE

NOTE : A point on the cur ve shows the reference point.

MS09NW MS09NW2 MS12NN MS12NN2 MU09NW MU09NW2 MU12NN MU12NN2

Cooling capacity

SHF at rating condition = 0.7

12

Indoor intake air WB temperature (

10

8

6

Airflow

Bypass Factor

= 279CFM = 0.26

-F)

16

14

12

71 67 63

10

8

Cooling capacity

SHF at rating condition = 0.71

Indoor intake air WB temperature (

Airflow

Bypass Factor

= 392CFM = 0.17

-

F)

71 67

63

1.2

Indoor intake air WB temperature (

0.8

0.6

F)

-

71 67 63

2

Indoor intake air WB temperature (

1

Total power consumption (kW) Total capacity ( o10 Btu/h)

65 75 85 95 105 115 67 75 85 95 105 115

Outdoor intake air DB temperature (-F) Outdoor intake air DB temperature (-F)

Total power consumption (kW) Total capacity ( o10 Btu/h)

MS15NN MS15NN2 MS17NN MS17NN2 MU15NN MU15NN2 MU17NN MU17NN2

Cooling capacity

SHF at rating condition = 0.7

18

16

14

12

2

Bypass Factor

Indoor intake air WB temperature (

Airflow

= 367CFM = 0.22

-F)

20

18

71 67 63

16

14

2

SHF at rating condition = 0.65

Indoor intake air WB temperature (

Cooling capacity

Airflow

Bypass Factor

= 417CFM = 0.24

-F)

71 67 63

-

F)

71 67 63

71 67

63

1

Total power consumption (kW) Total capacity ( o10 BTU/h)

67 75 85 95 105 115

Outdoor intake air DB temperature (-F)

13

1

Total power consumption (kW) Total capacity ( o10 BTU/h)

67 75 85 95 105 115

Outdoor intake air DB temperature (-F)

MSM30NN MSM30NN2 (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)

NOTE : A point on the curve shows the reference point.

MS09NW MUM30NN

Cooling capacity

SHF at rating condition = 0.72

Airflow = 279CFM

Bypass Factor = 0.24

MS15NN MUM30NN

Airflow = 392CFM

Cooling capacity

SHF at rating condition = 0.71

Bypass Factor = 0.19

Btu/h)

3

Total power consumption (kW) Total capacity (o 10

MS09NW MUM30NN2

12

Indoor intake air WB temperature (

10

8

6

1.2

1.0

Indoor intake air WB temperature (

0.8

0.6

75 85 95 105 115

65

Outdoor intake air DB temperature (

Cooling capacity

SHF at rating condition = 0.72

Airflow = 279CFM

Bypass Factor = 0.24

-F)

16

Btu/h)

3

14

-F)

71 67 63

71

F)

-

67 63

12

10

1.5

1.3

1.1

0.9

Total power consumption (kW) Total capacity (o 10

MS15NN MUM30NN2

Indoor intake air WB temperature (

75 85 95 105 115

65

Outdoor intake air DB temperature (-F)

Cooling capacity

SHF at rating condition = 0.71

Airflow = 392CFM

Bypass Factor = 0.19

-F)

71 67 63

71 67

63

12

Btu/h)

3

Total power consumption (kW) Total capacity (o 10

Indoor intake air WB temperature (

10

8

6

1.2

Indoor intake air WB temperature (

1.0

0.8

0.6

75 85 95 105 115

65

Outdoor intake air DB temperature (-F)

-F)

71 67 63

14

16

Indoor intake air WB temperature (

Btu/h)

3

14

12

10

1.5

1.3

Indoor intake air WB temperature (

1.1

0.9

Total power consumption (kW) Total capacity (o 10

75 85 95 105 115

65

Outdoor intake air DB temperature (-F)

-F)

71 67 63

3. CONDENSING PRESSURE AND SUCTION PRESSURE

Data is based on the condition of indoor humidity 50%. Air flow should be set at Hi. A point on the curve shows the reference point

MU09NW MU09NW2

PSIG

300

280

260

240

Condensing pressure

220

200

180 170

68 70 75 80 85 90 95 100 104 F

Indoor DB temperature

Outdoor ambient temperature

86 F 80

75 70

PSIG

90

80

70

60

Suction pressure

50

40

68 70 75 80 85 90 95 100 104 F

Indoor DB temperature

86 F

80 75 70

Outdoor ambient temperature

MU12NN MU12NN2

PSIG

300

280

260

240

Condensing pressure

220

200

180

160

68 70 75 80 85 90 95 100 104 F

Outdoor ambient temperature

Indoor DB temperature

86 F 80 75 70

PSIG

90

Indoor DB temperature

80

70

Suction pressure

60

50

40

68 70 75 80 85 90 95 100 104 F

Outdoor ambient temperature

86 F

80 75 70

15

Data is based on the condition of indoor humidity 50%. Air flow should be set at Hi. A point on the curve shows the reference point

MU15NN MU15NN2

PSIG

320

300

86 F

280

260

240

220

Condensing pressure

200

Indoor DB temperature

80 75 70

PSIG

90

80

70

60

Suction pressure

Indoor DB temperature

86 F

80 75

70

MU17NN MU17NN2

180

160

68 70 75 80 85 90 95 100 104 F

Outdoor ambient temperature

PSIG

320

300

280

260

240

Indoor DB temperature

Condensing pressure

220

200

86 F 80 75 70

50

40

68 70 75 80 85 90 95 100 104 F

Outdoor ambient temperature

PSIG

90

Indoor DB temperature

80

70

60

Suction pressure

86 F

80 75

70

180

160

68 70 75 80 85 90 95 100 104 F

Outdoor ambient temperature

16

50

40

68 70 75 80 85 90 95 100 104 F

Outdoor ambient temperature

MSM30NN

(ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)

Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point.

MS09NW MS15NN MUM30NN MUM30NN

PSIG

300

280

260

240

220

200

Condensing pressure

180 170

67

70

75 80 85 90 95 100 104-F

Outdoor ambient temperature

86-F

Indoor DB temperature

PSIG

80-F

300

75-F 70-F

280

260

240

220

200

Condensing pressure

180 170

67

70

75 80 85 90 95 100 104-F

MS09NW MS15NN MUM30NN MUM30NN

Indoor DB temperature

Outdoor ambient temperature

86-F

80-F 75-F

70-F

PSIG

100

90

80

70

60

Suction pressure

50

40

70

67

75 80 85 90 95 100 104-F

Indoor DB temperature

Outdoor ambient temperature

PSIG

100

86-F

90

80-F

80

75-F

70

70-F

60

Suction pressure

50

40

67

17

Indoor DB temperature

86-F

80-F 75-F

70-F

70

75 80 85 90 95 100 104-F

Outdoor ambient temperature

MSM30NN2

(ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)

Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point.

MS09NW MS15NN MUM30NN2 MUM30NN2

PSIG

300

280

260

240

220

200

Condensing pressure

180 170

67

70

75 80 85 90 95 100 104-F

Outdoor ambient temperature

Indoor DB temperature

PSIG

86-F

300

80-F 75-F

70-F

280

260

240

220

200

Condensing pressure

180 170

67

70

75 80 85 90 95 100 104-F

MS09NW MS15NN MUM30NN2 MUM30NN2

Indoor DB temperature

Outdoor ambient temperature

86-F 80-F 75-F

70-F

PSIG

100

90

80

70

60

Suction pressure

50

40

67

75 80 85 90 95 100 104-F

70

Indoor DB temperature

Outdoor ambient temperature

PSIG

100

90

86-F

80-F

80

75-F 70-F

70

60

Suction pressure

50

40

18

Indoor DB temperature

70

67

75 80 85 90 95 100 104-F

86-F

80-F

75-F

70-F

Outdoor ambient temperature

1

4. STANDARD OPERATION DATA MS09NW MS12NN MS15NN MS17NN MS09NW2 MS12NN2 MS15NN2 MS17NN2

Total

Electrical circuit

Refrigerant circuit

Indoor unit

Outdoor unit

Model

Item

Capacity SHF Input INDOOR UNIT MODEL Power supply (V, phase, Hz) Input Fan current OUTDOOR UNIT MODEL Power supply (V, phase, Hz) Input Comp. current Fan current Condensing pressure Suction pressure Discharge temperature Condensing temperature Suction temperature Comp. shell bottom temp Ref. pipe length Refrigerant charge

Intake air temperature

Discharge air temperature

Fan speed Airflow (Hi)

Intake air temperature

Fan speed High / Low Airflow

DB WB DB WB

DB WB

MS09NW MS09NW2

Unit

Btu / h

—

kW

MS09NW MS09NW2

kW

A

MU09NW MU09NW2

kW

A

A PSIG PSIG

˚F ˚F ˚F ˚F

ft

—

˚F ˚F ˚F ˚F

rpm

CFM

˚F ˚F

rpm

CFM

Cooling

8,500

0.7

0.84

115, 1, 60

0.035

0.34

115, 1, 60

0.805

6.49

0.66 259

80 161 117

49 137

25

2 lbs 2oz

80

67

60

57

1,230

279

95

—

780

1,024

MS12NN MS12NN2

Cooling

12,300/12,600

0.71

1.10/1.13

MS12NN MS12NN2

115, 1, 60

0.047

0.41

MU12NN MU12NN2

208/230, 1, 60

1.053/1.083

4.71/4.31

0.49 243

78 157 112

48 140

25

2 lbs 14 oz

80

67

58

56

1,200

392

95

—

830/900

1,324/1,430

MS15NN MS15NN2

Cooling

14,300/14,600

0.65

1.37/1.40

MS15NN MS15NN2

115, 1, 60

0.047

0.41

MU15NN MU15NN2

208/230, 1, 60

1.323/1.353

6.01/5.51

0.49 256

77 166 116

48 154

25

2 lbs 14 oz

80

67

55

54

1,200

367

95

—

830/900

1,324/1,430

MS17NN MS17NN2

15,900/16,100

MS17NN MS17NN2

MU17NN MU17NN2

208/230, 1, 60

POWER SUPPLY

MS09NW

INDOOR UNIT

115V 60Hz, 1[

MS12/15/17NN

INDOOR UNIT

115V 60Hz, 1[

MS09NW2

INDOOR UNIT

MS12/15/17NN2

INDOOR UNIT

Cooling

0.65

1.57/1.60

115, 1, 60

0.054

0.47

1.516/1.546

7.01/6.41

0.49 252

77 174 114

46 160

25

3lbs oz

80

67

56

54

1,290

417

95

—

830/900

1,288/1,394

SIGNAL WIRE

OUTDOOR UNIT

• The following wiring can also apply to MS09NW2, MS12/15/17NN2.

2 wire 12V DC

Field installed 115V 60Hz, 1[

OUTDOOR UNIT

SIGNAL WIRE 2 wire 12V DC

Field installed 208/230V 60Hz, 1[

✻ Control voltage Power supply voltage to serial signal circuit is 12V DC.Between

19

SIGNAL WIRE 2 wire 12V DC

OUTDOOR UNIT

+ and 2-- on in-out terminal block will be 12V DC peak voltage.

115V 60Hz, 1[

Field installed 115V 60Hz, 1[

OUTDOOR UNIT

SIGNAL WIRE 2 wire 12V DC

115V 60Hz, 1[

115V

Field installed 208/230V 60Hz, 1[ 3wire

1

STANDARD OPERATION DATA MSM30NN

MODEL Triple

Item

DB

WB

DB

WB

DB

WB

BTU/h

—

0.72 0.72 0.71 0.72

kW

MS09NW MS09NW MS15NN MS09NW MS09NW MS09NW MS15NN MS09NW MS15NN

0.035

kW

0.34

A

kW

7.0

A A

-F

ft

—

-F

273

80 154 122

47 130

25

3 lbs 3 oz

80

67

60

57

1,230

279

PSIG PSIG

R.P.M. CFM

-F

R.P.M. CFM

Electrical circuit

Refrigerant circuit

Indoor side

Outdoor side

Capacity SHFTotal Input Indoor unit model Power supply (V,Hz,{) Input Fan current Outdoor unit model Power supply (V,Hz,{) Input Comp. current Fan current Condensing pressure Suction pressure Discharge temp. Condensing temp. Suction temp. Comp.shell botton temp. Ref.pipe length Refrigerant charge Entering

air temp. Discharge

air temp. Fan speed

Airflow (Hi) Entering

air temp. Fan speed

Airflow

MSM30NN

A+B+C

Double

A+BA

+

C or B+C

A or B

Single

C

CoolingUnit

28,400 16,400 20,600 8,200 12,400

0.71

0.72 0.71

2.99 1.86 2.06 0.99 1.22

115,60,1 115,60,1 115,60,1

0.035

0.34

0.047

0.41

0.035

0.34

0.035

0.34

0.035

0.34

0.047

0.41

0.035

0.34

0.047

0.41

MUM30NN

208/230,60,1(3-wire)

2.873 1.79 1.978 0.955 1.173

7.0 3.8 7.0 7.0 7.0 3.8 7.0 3.8

0.7+0.8 0.65+0.75 0.6+0.7 264

80 157 118

47 130

25

3 lbs 3 oz

80

67

60

57

1,230

279

243

82 169 111

54 145

25

3 lbs 8 oz

80

67

58

57

1,200

392

262

78 197 118

60 171

25

3 lbs 3 oz

80

67

60

57

1,230

279

263

79 171 116

47 146

25

3 lbs 3 oz

80

67

60

57

1,230

279

269

78 151 118

47 124

25

3 lbs 3 oz

80

67

60

57

1,230

279

240

82 169 110

54 144

25

3 lbs 8 oz

80

67

58

57

1,200

392

267

80 143 121

52 129

25

3 lbs 3 oz

80

67

60

57

1,230

279

267

85 141 118

51 139

25

3 lbs 8 oz

80

67

58

57

1,200

392

95 95 95

———

850/940 750/840 0/1030

2,720 2,360 1,039

POWER SUPPLY

115V,60Hz,1{

INDOOR UNIT B

INDOOR UNIT A

OUTDOOR UNIT

INDOOR UNIT C

SIGNAL WIRE 2wire 12V DC

115V common 115V 230V

20

115V,60Hz,1{

POWER SUPPLY 208/230V,60Hz,

1{ 3wire

✻ Control voltage Power supply voltage to serial signal circuit is 12V DC. Between

+ and 2-- on in-out terminal block will be 12V DC peak voltage.

1

STANDARD OPERATION DATA MSM30NN2

MODEL Triple

Item Capacity SHFTotal Input Indoor unit model Power supply (V,Hz,{) Input

Electrical circuit

Fan current Outdoor unit model Power supply (V,Hz,{) Input Comp. current Fan current Condensing pressure Suction pressure Discharge temp.

Refrigerant circuit

Condensing temp. Suction temp. Comp.shell botton temp. Ref.pipe length Refrigerant charge Entering

air temp.

Indoor side

Discharge air temp.

Fan speed Airflow (Hi) Entering

Outdoor side

air temp. Fan speed

Airflow

POWER SUPPLY

115V,60Hz,1{

BTU/h

—

kW

A

kW

A

A PSIG PSIG

-F

ft

—

DB

-F

WB

-F

DB

-F

WB

-F R.P.M. CFM

-F

DB

-F

WB

R.P.M. CFM

INDOOR UNIT B

INDOOR UNIT A

0.72 0.72 0.71 0.72

MS09NW MS09NW MS15NN MS09NW MS09NW MS09NW MS15NN MS09NW MS15NN

0.035

0.34

7.0

246

78 146 112

50 130

25

2 lbs 14oz

80

67

60

57

1,230

279

MSM30NN2

A+B+C

Double

A+BA

+

C or B+C

A or B

Single

C

CoolingUnit

28,400 16,400 20,600 8,200 12,400

0.71

0.72 0.71

2.87 1.83 2.06 0.99 1.26

115,60,1 115,60,1 115,60,1

0.035

0.34

0.047

0.41

0.035

0.34

0.035

0.34

0.035

0.34

0.047

0.41

0.035

0.34

0.047

0.41

MUM30NN2

208/230,60,1(3-wire)

2.753 1.760 1.978 0.955 1.213

7.03.87.07.07.03.87.03.8

0.6+0.7 0.45+0.55 0.45+0.55 247

78 149 115

48 130

25

2 lbs 14oz

80

67

60

57

1,230

279

252

81 167 112

51 140

25

3 lbs 1 oz

80

67

58

57

1,200

392

266

78 157 120

47 138

25

2 lbs 14oz

80

67

60

57

1,230

279

263

77 157 119

47 139

25

2 lbs 14oz

80

67

60

57

1,230

279

264

77 156 119

47 138

25

2 lbs 14oz

80

67

60

57

1,230

279

262

85 169 117

57 152

25

3 lbs 1 oz

80

67

58

57

1,200

392

263

77 156 119

47 146

25

2 lbs 14oz

80

67

60

57

1,230

279

259

84 167 116

53 148

25

3 lbs 1 oz

80

67

58

57

1,200

392

95 95 95 ———

880/960 650/720 650/720

2,789 2,047 2,047

INDOOR UNIT C

✻ Control voltage Power supply voltage to serial signal circuit is 12V DC.

115V,60Hz,1{

Between

+ and 2-- on in-out terminal block will be 12V DC peak voltage.

115V,60Hz,1{

OUTDOOR UNIT

SIGNAL WIRE 2wire 12V DC

115V common 115V 230V

21

POWER SUPPLY 208/230V,60Hz,

1{ 3wire

5. OPERATING RANGE

(1) POWER SUPPLY

Rating

115V 60Hz 1[

208/230V 60Hz 1[

Indoor unit

Outdoor unit

Models

MS09NW MS09NN2

MS12NN MS12NN2 MS15NN MS15NN2 MS17NN MS17NN2

MU09NW MU09NW2

MU12NN MU12NN2 MU15NN MU15NN2 MU17NN MU17NN2

MUM30NN

MUM30NN2

(2) OPERATION

Function

Cooling

Intake air temperature

Condition

Standard temperature

Maximum temperature

Minimum temperature

Maximum humidity

DB (-F)

80 95 67

Indoor

WB (-F)

78%

6. OUTLET AIR SPEED AND COVERAGE RANGE

Model

MS09NW MS09NW2

MS12NN MS12NN2

MS15NN MS15NN2

MS17NN MS17NN2

Function

Dry

Wet

Dry

Wet

Dry

Wet

Dry

Wet

Air flow

(CFM)

328 279 452 392 452 367 491 417

Air speed

(ft/sec.)

0.1

Coverage

range (ft)

25.6

21.8

29.2

25.5

29.2

23.9

31.7

27.0

● The air coverage range is the value up to the position where the air speed is 1 ft/sec, when air is blown out horizontally from the unit properly at the High speed position. The coverage range should be used only as a general guideline since it varies according to the size of the room and furniture arranged in the room.

7. ADDITIONAL REFRIGERANT CHARGE (R-22(oz))

67 71 57

Guaranteed Voltage

Min. 103V — Max. 127V

Min. 198V 208V 230V Max. 253V

Outdoor

DB (-F)

95

115

67

—

WB (-F)

— — —

Model

MS09NW MU09NW MS09NW2 MU09NW2 MS12NN MU12NN MS12NN2 MU12NN2 MS15NN MU15NN MS15NN2 MU15NN2 MS17NN MU17NN MS17NN2 MU17NN2

MUM 30NN

MUM 30NN2

MS09NW MS15NN MS09NW MS15NN

Outdoor unit

precharged

(up to 25ft)

2 lbs 2 oz 2 lbs 14 oz 2 lbs 14 oz

3lbs

3lbs 3 ozo2

3 lbs 8 oz

2lbs 14 oz o2

3 lbs 1 oz

25ft

0

30ft

1

22

Refrigerant piping length (one way)

33ft

1

40ft

2

45ft

2

49ft

3

65ft

-

5

6

OUTLINES AND DIMENSIONS

MS09NW MS09NW2

INDOOR UNIT

30-13/16

32-1/16

10-13/16

2-3/8

2-3/16

24-5/8

11/16

5-1/8

3-5/16

7-3/8

1-5/8

1/4

3-15/16

8-7/8

12-11/16

7-3/16

8-7/8

12-3/8

3/16

2-13/16

3-9/16

{

5-1/4

3-11/16

1/4-19-11/16

3/8-16-15/16

1-3/8 O.D.

3/4 I.D

Unit : inch

8-11/16

7-3/16

1/8

1-13/16

2-9/16

5/8

1-1/8

10-3/8 3/8

6-5/16

MU09NW MU09NW2

OUTDOOR UNIT

12-5/8

7/8

10-1/16

21-1/4

10-5/16

11-1/4 12-5/8

3/8

9-13/16

11/16

1-11/16

4-13/16

30-11/16

19-5/8

12-5/16

3-9/16

16-11/16

4-3/8 o 13/16

1-1/4

3/4

2-13/16

1-15/16

1-1/16

12-5/8

11-1/4

9/16 9/16

(5/16 o 7/8)

2-3/8

13-1/2

2-9/16

3-9/16

2-9/16

5/8

7/16

4

4-3/16

20 in

4 in.

16

14 in.

16 in.

Lock nut

1/4

3/8

NOTE: Do not wire 12V DC and 115V AC

in same conduit hole.

This figure shows about MU09NW2.

Conduit cover

Connector

23

MS12NN MS15NN MS17NN MS12NN2 MS15NN2 MS17NN2

Wireless remote controller

.

INDOOR UNIT

5-7/8

7/16 ✕ 13/16

25-1/2

Unit : inch

8-9/16

12-5/8

1-15/16

39-3/16

39-15/16

30-1/2

2-3/16

6-5/16

11/16

7-1/2

2-3/8

1-9/16

17-11/16

17-1/4

7-1/2

MU12NN MU15NN MU17NN MU12NN2 MU15NN2 MU17NN2

OUTDOOR UNIT

13-7/8

3/16

Installation plate

{

13/161/8

10-13/161011-11/16

2-15/16

5/16-19-11/16

1/2-16-15/16

1-15/16 O.D. 1-1/8 I.D.

5/8 1-1/8

1-3/8

9-3/4

23-13/16

11-1/2

13/16

13-12/16

5/8

7-3/16

19-11/16 33-7/16

13/16

1-15/16

11-7/16

1-3/16

6-3/16

2-15/16

12-3/16

3-15/16

13-9/16

6-5/16

24

4 in.

14 in.

20 in.

Lock nut

1/4

Conduit

5/8

NOTE: Do not wire 12V DC and

This figure shows about MU12/15/17NN2.

cover

115V AC in same conduit hole

Connector

MODEL : MUM30NN MUM30NN2

OUTDOOR UNIT

Unit : inch

NOTE: Do not wire 12V DC and 115V AC

in same conduit hole.

4 wiring holes

{7/8

Refrigerant pipe (Flared) {5/8

Refrigerant pipe (Flared) {3/8

2-3/8

NOTE : The symbol { indicates the diameter.

Refrigerant pipe (Flared) {1/4

2-3/8

2-15/16

Air intake

Min.4in.

Air intake

Drainage hole

Min.12in.

Space for servicing wining and piping

2-9/16

5-15/16

18-3/4

Air intake

Air outlet

{1

13-5/8

3-3/16

Drainage hole 2-{1

Air outlet

12-1/4

20-1/2

12-5/8

25-5/8

handle for moving

{1

37-7/16

Min.36in.

4-{7/16 Installation anchor hole

1-13/16

2

5-15/16

Earth terminal

Service panel

1

Min.4in.

Min.33in.

7/16

16-9/16

7/16

45-5/16

15-3/8

1

17-3/8

Electrical box

2-1/16

2-5/32

25

7

WIRING DIAGRAM

MS09NW

MODEL WIRING DIAGRAM

INDOOR UNIT

TB

2 -

TO OUTDOOR UNIT CONNECTING WIRES 12V DC

POWER SUPPLY 115V 1 phase 60Hz

GROUND

POWER MONITOR, RECEIVER P.C.BOARD

SYMBOL

C11

F11

HIC1

MF

NOTE:1.For the outdoor electric wiring, refer to the outdoor unit electric wiring diagram .

INDOOR FAN CAPACITOR FUSE (3A) DC / DC CONVERTER INDOOR FAN MOTOR (INNER FUSE)

2. Use copper conductors only.(For field wiring)

3. Symbols below indicate. :Terminal block, :Connector

NAME

YLW

w

1 +

VLT

w

N

BLK

w

L1

RED

REMOTE CONTROLLER

LD101

CN

104

5

AUTO RESTART ASSEMBLY

(AUTO RESTART ASSEMBLY is included in indoor electronic control P.C. board from product number 7004651T)

5

SYMBOL

MV

NR11

RT11 RT12

CN202

1 2

CN201

1 2 3

TAB12

CN 151

MV

ELECTRONIC CONTROL P.C BOARD

5

NAME NAME VANE MOTOR VARISTOR ROOM TEMPERATURE THERMISTOR COIL TEMPERATURE THERMISTOR

HIC1

TRANS

F11

SR11

NR11

SYMBOL

SR11

TB

CN

112

CN 111

3

CN

121

C11

3 2 1

CN211

SOLID STATE RELAY TERMINAL BLOCK

BLK GRY YLW BRN WHT RED

RT12

RT11

1 2 3

MF

4 5 6

MU09NW

MODEL WIRING DIAGRAM

OUTDOOR UNIT

GROUND

POWER SUPPLY 115V 1 phase 60Hz

FROM INDOOR UNIT CONNECTING WIRES 12V DC

SYMBOL

C1 C2

MC

NOTE:1.Use copper conductors only.(For field wiring)

COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR COMPRESSOR

2. “w”show the terminals with a lock mechanism, so they can not be removed when you pull the lead wire. Be sure to pull the wire by pushing the locking lever(projected part) of the terminal with a finger.

3. Symbols below indicate.

:Terminal block, :Connector

NAME NAME NAME

TB

L1

ww w

RED

N

w

BLK

w

VLT 1

2 -

w

YLW 2

SYMBOL

52C 51C

NO

COM

w

52C

w

MF TB1 51C

OUTDOOR FAN MOTOR (INNER PROTECTOR) TERMINAL BLOCK OVER CURRENT RELAY

WHT WHT WHT

2

C2

1

WHT

C1

WHT BLK RED

RED

BLK1 +

1 2 3

WHT BLK RED

C

MC

S

R

MF

SYMBOL

52C

CONTACTOR

1.Slide the sleeve.

2.Pull the wire while pushing the locking lever.

26

MS12NN MS15NN MS17NN

INDOOR UNIT

TB

2 -

YLW

1 +

N L1

w

VLT

BLK RED

BRN

DSAR

GRN/YLW

TO OUTDOOR UNIT CONNECTING WIRES 12V DC

POWER SUPPLY 115V 1 phase 60Hz

GROUND

MODELS WIRING DIAGRAM

CN201

1

TAB12

12

CN202

CN 101

CN 102

CN 104

3355

2 3

F11

CN 151

HIC1

TRANS

NR11

C11

SR144 SR142 SR143

LDCOM LDC11 LDC12

LDFH LDFL LDFM

CN 112

CN 111

WHT ORN RED BLK YLW BLU

RT12 RT11

1 2 3 4 5 6 7 8

WHT ORN RED BLK YLW BLU BRN

GRN/YLW

MF

RECEIVER P.C. BOARD

REMOTE CONTROLLER

SYMBOL

C11

DSAR

F11

HIC1

NOTE:1.For the outdoor electric wiring refer to the outdoor unit electric wiring diagram for servicing.

INDOOR FAN CAPACITOR SURGE ABSORBER FUSE (3A) DC / DC CONVERTER

2. Use copper conductors only.(For field wiring)

3. Symbols below indicate. :Terminal block, :Connector

DISPLAY P.C. BOARD

NAME

MU12NN MU15NN MU17NN

AUTO RESTART ASSEMBLY

SYMBOL

NR11 RT11

MODELS WIRING DIAGRAM

MF MV

MV

NAME NAME INDOOR FAN MOTOR (INNER FUSE) VANE MOTOR VARISTOR ROOM TEMPERATURE THERMISTOR

OUTDOOR UNIT

GROUND

POWER SUPPLY 208/230V 1phase 60Hz

TB

L1

L2

RED

w

52C

BLU

WHT

www

COMNO

C1

SYMBOL

SR142~SR144

RED

S

BLK

RT12

TB

C

MC

COIL TEMPERATURE THERMISTOR SOLID STATE RELAY TERMINAL BLOCK

R

BLK

BLU

4321

WHTWHT

FROM INDOOR UNIT CONNECTING WIRES 12V DC

1 +

2 -

w

VLT

YLW

w

52C

C2

ORN

RED

WHT

ORN

RED

MF

SYMBOL NAME SYMBOL NAME SYMBOL NAME

C1 C2

NOTE:1.Use copper conductors only.(For field wiring)

2. “w”show the terminals with a lock mechanism, so they cannot be removed when you pull

3. Symbols below indicate.

COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR

the lead wire. Be sure to pull the wire by pushing the locking lever(projected part) of the terminal with a finger.

:Terminal block, :Connector

MC MF

COMPRESSOR(INNER PROTECTOR) OUTDOOR FAN MOTOR(INNER PROTECTOR)

TB TERMINAL BLOCK

52C

COMPRESSOR CONTACTOR

1.Slide the sleeve.

2.Pull the wire while

27

pushing the locking lever.

MS09NW2

INDOOR UNIT

TO OUTDOOR UNIT CONNECTING WIRES 12V DC

FROM OUTDOOR UNIT CONNECTING WIRES POWER

( )

SUPPLY 115V 1 phase 60Hz

MODEL WIRING DIAGRAM

TB

2 -

1 +

YLW

VLT

N

BLK

L1

RED

CN 151

CN202

CN201

TAB12

LD101T

1 2

1 2 3

ELECTRONIC CONTROL P.C. BOARD

HIC1

TRANS F11

SR11

NR11

C11

CN

112

CN

111

CN

121

3 2 1

CN211

RT12 RT11

BLK

3

GRY YLW BRN WHT RED

1 2 3

MF

4 5 6

SYMBOL

C11

F11

HIC1

MF

NOTE :

INDOOR FAN CAPACITOR FUSE (3A) DC / DC CONVERTER INDOOR FAN MOTOR (INNER FUSE)

1.About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing.

2.Use copper conductors only. (For field wiring)

3.Symbols below indicate.

MU09NW2

OUTDOOR UNIT

GROUND

POWER SUPPLY 115V 1 phase 60Hz

TO INDOOR UNIT CONECTING WIRES

115V 1 phase 60Hz

FROM INDOOR UNIT CONNECTING WIRES 12V DC

5

MV

NAME

: Terminal block

SYMBOL

MV NR11 RT11 RT12

VANE MOTOR VARISTOR ROOM TEMPERATURE THERMISTOR COIL TEMPERATURE THERMISTOR

: Connector

MODEL WIRING DIAGRAM

TB1

GRN/YLW

N

BLK

TB3

1

52C

1 +

2 -

1L

TB2

1

L

N

RED

BLK

VLT

YLW

5

POWER MONITOR, RECEIVER P.C.BOARD

RED

TB3

2

REMOTE CONTROLLER

WHT

C2

SYMBOL

SR11

51C

2

BLK

WHT

TB

SOLID STATE RELAY TERMINAL BLOCK

1

WHT

C1

WHT BLK RED

RED

BLK

1 2 3

WHT BLK RED

MC

S

MF

C

R

NAME NAME

52C

WHT

COMNO

TO INDOOR UNIT

SYMBOL

C1 C2

MC

NOTES:1.About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.

COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR COMPRESSOR

2.Use copper conductors only.(For field wiring)

3.Symbols below indicate. :Terminal block :Connector

NAME NAME NAME

SYMBOL

MF TB1 TB2

OUTDOOR FAN MOTOR (INNER PROTECTOR) TERMINAL BLOCK TERMINAL BLOCK

28

SYMBOL

TB3 51C 52C

TERMINAL BLOCK OVER CURRENT RELAY CONTACTOR

MS12NN2 MS15NN2 MS17NN2

HIC1

RECEIVER P.C.BOARD

MV

33

DISPLAY P.C.BOARD

REMOTE CONTROLLER

5

AUTO RESTART ASSEMBLY

5

MF

ORN

BLK

RED

C11

NR11

ELECTRONIC CONTROL P.C BOARD

7

3

2

1

RED

5

4 6

WHT

YLW BLU

BLK

RED

ORN

WHT

GRN/YLW

LDFM

LDFL

LDFH

LDC12

LDC11

LDCOM

YLW

BLK

L1

N

8

BRN

HIC1

TRANS

TB

CN

101

CN

151

102

CN

1 +

2 -

VLT

F11

CN

112

CN

111

RT11

RT12

SR144 SR142 SR143

CN201

1

21

CN202

CN

104

2 3

DSAR

BRN

GRN/YLW

TAB12

TO OUTDOOR UNIT CONNECTING WIRES 12V DC

TO OUTDOOR UNIT CONNECTING WIRES POWER SUPPLY 115V 1 phase 60Hz

( )

NOTE :

2.Use copper conductors only. (For field wiring) : Terminal block

1.About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing.

3.Symbols below indicate.

INDOOR FAN MOTOR (INNER FUSE) VANE MOTOR VARISTOR ROOM TEMPERATURE THERMISTOR

SYMBOL

MF

MV

NR11

RT11

INDOOR FAN CAPACITOR SURGE ABSORBER FUSE (3A) DC / DC CONVERTER

SYMBOL

C11

DSAR

F11

HIC1

NAME

NAME NAME

SYMBOL

RT12

SR142~SR144

TB

COIL TEMPERATURE THERMISTOR SOLID STATE RELAY TERMINAL BLOCK

: Connector

INDOOR UNIT

MODELS WIRING DIAGRAM

MU12NN2 MU15NN2 MU17NN2

OUTDOOR UNIT

TB1

GROUND

POWER SUPPLY

SYMBOL

C1 C2

MC

NOTES:1.About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.

2.Use copper conductors only.(For field wiring)

3.Symbols below indicate. :Terminal block :Connector

208/230V 1phase 60Hz

FROM INDOOR UNIT CONNECTING WIRES 115V 1 Phase 60Hz

FROM INDOOR UNIT CONNECTING WIRES 12V DC

TO INDOOR UNIT

COMPRESSOR CAPACITOR

NAME NAME NAME

OUTDOOR FAN CAPACITOR COMPRESSOR (INNER PROTECTOR)

L

2

N

L

1

TB2

1

L

N

1 +

2 -

MODELS WIRING DIAGRAM

GR N/YLW

BLU

BLK

RED

VLT

YLW

SYMBOL

MF TB1 TB2

COM

NO

52C

RED

52C

OUTDOOR FAN MOTOR (INNER PROTECTOR) TERMINAL BLOCK TERMINAL BLOCK

29

WHT

C1

RED

C2

BLK

SYMBOL

52C

MC

S

BLU

BLK

WHT

WHT ORN

ORN

RED

1234

CONTACTOR

C

R

MF

MUM30NN

OUTDOOR UNIT

POWER SUPPLY 208/230V 1phase 3wires 60Hz

FROM INDOOR UNIT(09A) CONNECTING WIRES 12V DC

FROM INDOOR UNIT(09B) CONNECTING WIRES 12V DC

FROM INDOOR UNIT(15C) CONNECTING WIRES 12V DC

MF1

MF2

115V115V

GROUND

INDOOR UNIT

ORN RED

BLU YLW BLK WHT

ORN RED BLU YLW BLK WHT

(09A)

(09B)

(15C)

ORN

6

RED

5 4

YLW

3

BLK

2

WHT

1

ORN

6

RED

5 4

YLW

3

BLK

2

WHT

1

TB1

L1

1 +

2 -

1 + 2 -

6

X64

L2

N

4

TB2

w

TB3

w

TB4

w

RED RED BLK

BLK

BLU

NO

52C3

52C1

52C2

COM

WHT WHT

RED

WHT

51C3

2

51C2

2

51C1

1 1

WHT

BLK

C3

RED

C

MC3

S

R

BLK

WHT

RED

C

MC1

R

S

1

C1

BLK

1

52C1

52C2

ORN BRN

2 1

ORN

WHT

BLK

C2

RED

BLK

C

MC2

S

R

BRN

ORN BRN

2

52C3

ORN BRN

CN623 CN622 CN621

(52C3) (52C2) (52C1)

LD616

C62

LD615 LD606

C61

LD605

LD614

X63

LD613

212112

LD603

LD612

X62

LD602

LD611

LD601

X61

TAB62

(AC)

X63 X62 X61

LD620

NR61

LD621

F

(2A)

DSAR

TAB61

4 3 2 1

CN64 (TRS)

LD61

BLU BLU BLK BLK

GRN

T

ORN BRN

BLU RED

RED

3

BLU

1

ORN

6

RED

5

BLU

GRY

2

3

5

1

X64

BRN

GRY

4 3 2 1

YLW BLK WHT

X64

78

BLU

GRY

1 2

BLU

GRY

CR

SYMBOL NAME SYMBOL NAME SYMBOL NAME

C1~C3

COMPRESSOR CAPACITOR

C61,C62 FAN MOTOR CAPACITOR MF1,2

CR SURGE KILLER NR61 VARISTOR 51C1,2,3

DSAR SURGE ABSORBER T TRANSFORMER 52C1,2,3

MC1~MC3

COMPRESSOR(INNER THERMOSTA T) FAN MOTOR(INNER THERMOSTAT)

TB1~TB4 TERMINAL BLOCK

X61~X64 FAN MOTOR RELAY

OVER CURRENT RELAY COMPRESSOR CONTACTOR

F FUSE (2A)

NOTE:1. Use copper conductors only (For field wiring).

2. Symbols below indicate. :Terminal block, :Connector

3. “w”shows the terminals with a lock mechanism, so they cannot be removed when you pull

the lead wire. Be sure to pull the wire by pushing the locking lever (projected part) of the terminal with a finger.

1.Slide the sleeve.

2.Pull the wire while pushing the locking lever.

30

MUM30NN2

OUTDOOR UNIT

POWER

SUPPLY

208/230V

1phase

3wires

115V115V

60Hz

GROUND

INDOOR UNIT

FROM INDOOR UNIT (09A) CONNECTING WIRES 12V DC

FROM INDOOR UNIT (09B) CONNECTING WIRES 12V DC

FROM INDOOR UNIT (15C) CONNECTING WIRES 12V DC

MF1

MF2

ORN

RED

BLU

YLW

BLK WHT

ORN

RED

BLU

YLW

BLK WHT

INDOOR UNIT

6 5 4 3 2 1

(09A)

(09B)

(15C)

ORN

RED BLU

BLK WHT

ORN

RED BLU

BLK WHT

L1

L2

1 +

N

2 -

TB

52C3

NO

52C1

52C2

COM

RED

BLU

TB

RED

1

RED RED

2

BLU

1

52C1

52C2

52C3

2

1

2

ORN

BRN

ORN

BRN

ORN

BRN

CN623 CN622 CN621

LD616

(52C3) (52C2)(52C1)

C62

LD615 LD606

C61

LD605

LD614

LD604

ORN

W

BRN

W

ORN

W

BRN

W

ORN

W

BRN

W

WHT

X63

LD613

LD603

BLU

212112

LD612

2

51C3

51C1

51C2

X62

LD602

LD611

12

1

X61

LD601

X63 X62 X61

TAB62

(AC)

NR61

RED

F61

(2A)

DSAR

TAB61

4 3 2 1

CN64

(TRS)

LD61

63H

WHTWHT

BLK

WHT

BLK

WHT

BLK

RED

BLU BLU BLK BLK

GRN

C3

C1

C2

RED

BLK

RED

BLK

RED

BLK

T

RED

C MC3

S

R

C MC1

S

R

C MC2

S

R

63H63H

SYMBOL NAME SYMBOL NAME SYMBOL NAME

C1~C3

COMPRESSOR CAPACITOR

C61,C62 FAN MOTOR CAPACITOR NR61 VARISTOR 52C1,2,3

DSAR SURGE ABSORBER T TRANSFORMER 63H

MF1,MF2

FAN MOTOR(INNER THERMOSTAT)

51C1,2,3

OVER CURRENT RELAY COMPRESSOR CONTACTOR HIGH PRESSURE SWITCH

F61 FUSE (2A) TB TERMINAL BLOCK

MC1~MC3

COMPRESSOR(INNER THERMOSTA T)

NOTE:1. Use copper conductors only (For field wiring).

2. Symbols below indicate. :Terminal block, :Connector

3. “w”shows the terminals with a lock mechanism, so they cannot be removed when you pull

the lead wire. Be sure to pull the wire by pushing the locking lever (projected part) of the terminal with a finger.

X61~X63 FAN MOTOR RELAY

1.Slide the sleeve.

2.Pull the wire while pushing the locking lever.

31

8

MS09NW MS09NW2

REFRIGERANT SYSTEM DIAGRAM

MU09NW MU09NW2

INDOOR UNIT OUTDOOR UNIT

Refrigerant pipe 3/8 (option) (with heat insulator)

Stop valve with service port

Indoor heat exchanger

Room temperature thermistor RT11

Indoor coil thermistor RT12

Flared

connection

Flared

connection

Service port

Accumulator

Fusible plug

Muffler

Service port

Compressor

Outdoor heat exchanger

Strainer

Unit:inch

MS12NN MS12NN2 MS15NN MS15NN2 MS17NN MS17NN2

INDOOR UNIT

Indoor heat exchanger

Room temperature thermistor RT11

Indoor coil thermistor RT12

Distributor

Refrigerant pipe 1/4 (option) (with heat insulator)

Refrigerant pipe 5/8 (option) (with heat insulator)

Flared

connection

Stop valve

Capillary tube

Stop valve with service port

Service port

Accumulator

O.D. 0.12 o I.D. 0.063 o 47-1/4

Flow of refrigerant

MU12NN MU12NN2 MU15NN MU15NN2 MU17NN MU17NN2

OUTDOOR UNIT

Fusible plug

Muffler

Compresser

Service port

Outdoor heat exchanger

Flared

connection

Refrigerant pipe 1/4 (option) (with heat insulator)

MU12 O.D. 0.12 o I.D. 0.071 o 31-1/2 MU15 O.D. 0.12 o I.D. 0.071 o 21-5/8 MU17 O.D. 0.12 o I.D. 0.079 o 27-9/16

Capillary tube

Stop valve

32

Strainer

Flow of refrigerant

MS09NWO 2 MS15NNO 1

INDOOR UNIT OUTDOOR UNIT

MS09NW

Evaporator

Room temperature thermistor RT11

MS09NW

Evaporator

Indoor coil thermistor RT12

Refrigerant pipe [3/8 (Option) (with heat insulator)

Flared

connection

Flared

connection

Refrigerant pipe [1/4 (Option) (with heat insulator)

Refrigerant pipe [3/8 (Option) (with heat insulator)

Flared

connection

Ball valve

Accumulator

Ball valve with service port

Ball valve

Accumulator

Service port

Fusible

plug

Muffler

O.D. 0.12oI.D. 0.055 o 33-7/16

Capillary tube (A)

Fusible

plug

Muffler

MUM30NN

Service port

Compressor

Strainer

Service port

Compressor

Unit : inch

Condenser

Room temperature thermistor RT11

MS15NN

Evaporator

Room temperature thermistor RT11

Indoor coil thermistor RT12

Flared

connection

Refrigerant pipe [1/4 (Option) (with heat insulator)

Refrigerant pipe [5/8 (Option) (with heat insulator)

Flared

connection

Flared

connection

Refrigerant pipe [1/4 (Option) (with heat insulator)

Ball valve with service port

Ball valve

Accumulator

Ball valve with service port

33

O.D. 0.12oI.D. 0.055 o 25-9/16

Capillary tube (B)

Service port

Fusible

plug

Muffler

O.D. 0.12oI.D. 0.063 o 15-3/4

Capillary tube (C)

Compressor

Strainer

Service port

Strainer

Flow of refrigerant

MS09NWO 2 MS15NNO 1

Unit : inch

MUM30NN2

INDOOR UNIT OUTDOOR UNIT

MS09NW

Evaporator

Room temperature thermistor RT11

MS09NW

Evaporator

Room temperature thermistor RT11

MS15NN

Evaporator

Room temperature thermistor RT11

Indoor coil thermistor RT12

Refrigerant pipe [3/8 (Option) (with heat insulator)

Flared

connection

Flared

connection

Refrigerant pipe [1/4 (Option) (with heat insulator)

Refrigerant pipe [3/8 (Option) (with heat insulator)

Flared

connection

Flared

connection

Refrigerant pipe [1/4 (Option) (with heat insulator)

Refrigerant pipe [5/8 (Option) (with heat insulator)

Flared

connection

Flared

connection

Refrigerant pipe [1/4 (Option) (with heat insulator)

Ball valve

Accumulator

Ball valve with service port

Ball valve

Accumulator

Ball valve with service port

Accumulator

Ball valve with service port

34

Service port

Fusible

plug

Muffler

Capillary tube (A)

O.D. 0.12 o I.D. 0.055 o 21-5/8

Fusible

plug

Muffler

Capillary tube (B)

O.D. 0.12 o I.D. 0.055 o 21-5/8

Fusible

plug

Muffler

Capillary tube (C)

O.D. 0.12 o I.D. 0.063 o 17-11/16

Compressor

Service port

H.P. swich

Strainer

Condenser

Service port

H.P. swich

Strainer

Service port

H.P. swich

Strainer

Flow of refrigerant

9

MICROPROCESSOR CONTROL

MS09NW MS12NN MS15NN MS17NN

MS09NW2 MS12NN2 MS15NN2 MS17NN2

Once the operation mode are set, the same operation mode can be repeated by simply turning the OPERATE/STOP(ON/OFF) button ON. Indoor unit receives the signal with a beep tone. When the system turns off, 3-minute time delay will operate to protect system from over load and compressor will not restar t for 3 minutes.

WIRELESS REMOTE CONTROLLER MS09NW MS12NN MS15NN MS17NN

Operation display section

OPERATE/STOP (ON/OFF)button

OPERATION SELECT button

FAN SPEED CONTROL button

ON-TIMER button

CLOCK SET button

HR. button

MIN. button

(TIME SET button)

Signal transmitting section

TEMPERATURE button

VANE CONTROL button

SWING button

OFF-TIMER button

RESET button

MS09NW2 MS12NN2 MS15NN2 MS17NN2

Operation display section

OPERATE/STOP (ON/OFF)button

OPERATION SELECT button

FAN SPEED CONTROL button

TIMER MODE SELECT button

ON/OFF

MODE

FAN

SELECT

TIMER CONTROL

TOO

WARM

I FEEL COOL

DRY FAN

VANE

TIME

RESET

Hr

TOO

COOL

Signal transmitting section

TEMPERATURE button

VANE CONTROL button

TIME SET button

RESET button

INDOOR UNIT DISPLAY SECTION

Operation Indicator lamp

The operation indicator at the right side of the indoor unit indicates the operation state.

Operation Indicator

Indication

This shows that the air conditioner is operating to reach the target temperature. Please wait unil the target temperature is obtained.

This shows that the room temperature is approaching the target temperature.

lighting not lighting

Operation state

35

Difference betweeen set temperature and room temperature

Approx. 4 ˚F or more

Approx. 4 ˚F or less

9-1. “I FEEL CONTROL” OPERATION

(1) Press OPERATE/STOP button on the remote controller.

Operation indicator lamp of the indoor unit will turn on with a beep tone.

(2) Press OPERATION SELECT button to set “I FEEL

CONTROL”Then a beep tone is heard.

Initial room temperature mode

more than 77-F

55-F to 77-F

COOL mode of

“I FEEL CONTROL”

DRY mode of

“I FEEL CONTROL”

(3) The operation mode is determined by the initial room

temperature at start-up of the operation.

● Once the mode is fixed, the mode will not change by room temperature afterwards.

● Under the ON-TIMER operation, the mode is determined according to the room temperature when the operation starts.

● When the system is stopped with the OPERATE/STOP button on the remote controller, and restar ted within

2 hours in “I FEEL CONTROL” mode, the system operates in previous mode automatically regardless of the room temperature.

Example

Previous operation COOL mode of “I FEEL CONTROL” or COOL mode

● When the system is restarted after 2 hours, the operation mode is determined by the initial room temperature at start-up of the operation.

Example

Previous operation COOL mode of “I FEEL CONTROL” or COOL mode

(4) The initial set temperature is decided by the initial room temperature.

Restart COOL mode of “I FEEL CONTROL”

COOL or DRY mode of

“I FEEL CONTROL” that determined by initial room temperature startup of the operation.

Mode

Initial room temperature

79: or more

COOL mode of

“I FEEL CONTROL”

77-F to 79-F

DRY mode of

“I FEEL CONTROL”

w1 When the system is restarted with the remote controller, the system operates with the previous set temperature regard-

less of the room temperature at restart. The set temperature is calculated by the previous set temperature.

55-F to 77 -F

36

Initial room temperature minus 4-F

Initial set temperature

75-F

w 1

(5) TEMPERATURES buttons

In “I FEEL CONTROL” mode, set temperature is decided by the microprocessor based on the room temperature.

In addition, set temperature is controlled by TOO WARM or TOO COOL buttons when you feel too cool or too warm. Each time the TOO WARM or TOO COOL button is pressed,the indoor unit receives the signal and emits a beep tone.

● Fuzzy control

When the TOO COOL or TOO WARM button is pressed, the microprocessor changes the set temperature, considering the room temperature, the frequency of pressing TOO COOL or TOO WARM button and the user’s preference to heat or cool. So this is called “Fuzzy control”, and works only in “I FEEL CONTROL” mode. In DRY mode of “I FEEL CONTROL”, the set temperature doesn’t change.

▲ TOO COOL…To raise the set temperature 2~4 degrees(°F)

▼ TOO WARM …To lower the set temperature 2~4 degrees(°F)

— COOL mode of “I FEEL CONTROL” —

1. Indoor fan speed control

Indoor fan operates at the set speed by FAN SPEED CONTROL button. In AUTO the fan speed is as follows.

Initial temperature difference

Fan speed Room temperature minus set temperature : 4 degrees or more···········································Hi Room temperature minus set temperature : Between 2 and 4 degrees·······························Me Room temperature minus set temperature : less than 2 degrees·········································Lo

2. Coil frost prevention

① Temperature control

<MS09> When the indoor coil thermistor RT12 reads 39-F or below for 5 minutes, the coil frost prevention mode star ts. <MS12/15/17> When the indoor coil thermistor RT12 reads 37-F or below, the coil frost prevention mode starts

immediately. However the coil frost prevention doesn’t work for 5 minutes since the compressor has started.

The indoor fan operates at the set speed the compressor stops for 5 minutes. After that, if RT12 still reads below 39-F (MS09) or below 37-F (MS12/15/17) this mode is prolonged until the RT12 reads over 39-F (MS09) or 37-F (MS12/15/17).

Difference between room temperature and set temperature during operation.

3 deg.

2 deg.

4 deg.

7 deg.

② Time control

When the three conditions as follows have been satisfied for 1 hour and 45 minutes, compressor stops for 3 minutes. a. Compressor has been continuously operating. b.Indoor fan speed is Lo or Me.

c. Room temperature is below 79-F. When compressor stops, the accumulated time is cancelled and when compressor restarts, time counting starts from the beginning. Time counting also stops temporarily when the indoor fan speed becomes Hi or the room temperature exceeds 79°F. However, when two of the above conditions (b.and c.) are satisfied again. Time accumulation is resumed.

ON

Compressor and

OFF

ON

OFF

Outdoor fan motor

Indoor fan motor

ON (continuously at set speed)

37

—DRY mode of “I FEEL CONTROL”—

The system for dry operation uses the same refrigerant circuit as the cooling circuit. The compressor and the indoor fan are controlled by the temperature. By such controls, indoor flow amounts will be reduced in order to lower humidity without much room temperature decrease.

1. Indoor fan speed control

Indoor fan operates at the set speed by FAN SPEED CONTROL button. However, in AUTO fan operation, fan speed becomes Lo.

2.The operation of the compressor and indoor/ outdoor fan

Compressor operates by room temperature control and time control. Set temperature is controlled to fall 4-F as initial set temperature.

Indoor fan and outdoor fan operate in the same cycle as the compressor.

• When the room temperature is 73-F or over: When the thermostat is ON, the compressor repeats 8 minutes ON and 3 minutes OFF. When the thermostat is OFF, the compressor repeats 4 minutes OFF and 1 minute ON.

• When the room temperature is under 73-F. When the thermostat is ON, the compressor repeats 2 minutes ON and 3 minutes OFF. When the thermostat is OFF, the compressor repeats 4 minutes OFF and 1 minute ON.

Operation time chart

Example

ON

Thermostat

Indoor fan

Outdoor fan Compressor

3. Coil frost prevention

• The operation is as same as coil frost prevention during COOL mode of “I FEEL CONTROL”.

• Indoor fan operates at the set speed and the compressor stops for 5 minutes, because protection (Coil frost

prevention) has the priority. However, when coil frost prevention works while the compressor is not operating, it’s speed becomes Lo.

OFF

ON

8 min.

OFF

ON

3 min.

OFF

4 min.

OFF

ON

1 min.

9-2. COOL OPERATION

(1) Press OPERATE/STOP(ON/OFF) button.

OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone. (2) Select COOL mode with the OPERATION SELECT button. (3) Press the TEMPERATURE buttons.

(TOO WARM or TOO COOL button) to select the desired temperature.

The setting range is 59 ~ 89-F

✻ Indoor fan continues to operate regardless of thermostat’s OFF-ON at set speed. ✻ Coil frost prevention is as same as COOL mode of “I FEEL CONTROL”.

38

9-3. DRY OPERATION

(1) Press OPERATE/STOP(ON/OFF) button.

F

95

OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone.

(2) Select DRY mode with the OPERATION SELECT

button.

86

(3) The microprocessor reads the room temperature and

determines the set temperature. Set temperature is as shown on the right chart. Thermostat (SET TEMPERATURE) does not work.

77

The other operations are same as DRY mode of “I FEEL CONTROL”.

(4) DRY operation will not function when the room tem-

perature is 55-F or below.

68

(5) When DRY operation functions, the fan speed is

lower than cool operation.

59

9-4. FAN OPERATION

(1)Press POWER ON/OFF button. (2)Select FAN mode. (3)Select the desired fan speed.When AUTO,it becomes Lo.

(Only DRY operation.)

50

50 59 68 77 86 95

Only indoor fan operates.Outdoor unit does not operate.

9-5. FAN MOTOR CONTROL<MS09>

(1) Rotational frequency feedback control

The indoor fan motor is equipped with a rotational frequency sensor, and outputs signal to the microprocessor to feedback the rotational frequency. Comparing the current rotational frequency with the target rotational frequency (Hi,Me,Lo) the microprocessor controls SR11 and adjusts fan motor electric current to make the current rotational frequency close to the target rotational frequency. With this control, when the fan speed is switched, the rotational frequency changes smoothly.

F

(2) Fan motor lock-up protection

When the rotational frequency feedback signal has not output for 12 seconds, (or when the microprocessor cannot detect the signal for 12 seconds) the fan motor is regarded locked-up.Then the electric current to the fan motor is shut off. 3 minutes later, the electric current is applied to the fan motor again.Dur ing the fan motor lock-up, the OPERATION INDICATOR lamp flashes on and off to show the fan motor abnormality. (See page 45.)

9-6. AUT O VANE OPERA TION

(1) Vane motor drive

These models are equipped with a stepping motor for the horizontal vane.The rotating direction, speed, and angle of the motor are controlled by pulse signals (approx.12V) transmitted from indoor microprocessor.)

(2) The horizontal vane angle and mode changes as follows by pressing the VANE CONTROL (

<MS09NW, MS12/15/17NN>

<MS09NW2, MS12/15/17NN2>

39

VANE

) button.

or

1

2

(3) Positioning

The vane is once pressed to the vane stopper below to confirm the standard position and then set to the desired angle.

Confirming of standard position is performed in case of follows.

(a) When the OPERATE/STOP(ON/OFF) button is pressed.(POWER ON/OFF)

(b) When the vane control is changed AUTO to MANUAL.

(c) When the SWING is finished.

(d) When the test run starts.

(e) When the power supply turns ON. (4) V ANE AUTO mode

In VANE AUTO mode, the microprocessor automatically determines the vane angle and operation to make the optimum

room-temperature distribution.

In COOL and DRY operation

Vane angle is fixed to Angle 1.

In FAN operation

Vane angle is fixed to Angle 4.

(5) STOP (operation OFF) and ON-TIMER standby

When the following cases occur, the vane returns to the closed position.

(a) When the OPERATE/STOP (ON/OFF) button is pressed (POWER OFF).

(b) When the operation is stopped by the emergency operation.

(c) When the ON-TIMER is on standby. (6) Dew prevention

During COOL or DRY operation at vane Angle 4 or 5 when the compressor cumulative operation time exceeds 1 hour,

the vane angle automatically changes to Angle 1 for dew prevention. (7) SWING MODE

<MS09NW, MS12/15/17NN>

By pressing the SWING ( ) button the horizontal vane swings ver tically.The remote controller displays “ ”. SWING

mode is cancelled when the SWING ( ) button or the VANE CONTROL ( ) button is pressed or the mode is

SWING

SWING VANE

changed to other mode.

<MS09NW2, MS12/15/17NN2>

By selecting SWING mode with the VANE CONTROL ( ) button, the horizontal vane swings vertically. The remote

controller displays “ ”. SWING mode is cancelled when the VANE CONTROL ( ) button is pressed once again.

VANE

40

9-7.TIMER OPERATION

<MS09NW, MS12/15/17NN>

1. How to set the timer.

(1) Press OPERATE/STOP(ON/OFF) button to start the air conditioner. (2) Check that the current time is set correctly. NOTE :Timer operation will not work without setting the current time. Initially “AM0:00” blinks at the current time display

of TIMER MONITOR, so set the current time correctly with CLOCK SET button.

(3) Press TIMER CONTROL button to select the operation.

“

START” button... AUTO START operation (ON timer)

“

STOP” button... AUTO STOP operation (OFF timer)

(4) Press HR. and MIN. button to set the timer.Time setting is 10-minute units.

HR. and MIN. button will work when “ These marks disappear in 1 minute. After setting the ON timer, check that OPERATION INDICATOR lamp of the indoor unit lights.

NOTE1 : Be sure to place the remote controller at the position where its signal can reach the air conditioner even during

TIMER operation, or the set time may deviate within the range of about 10 minutes.

NOTE2 : Reset the timer in the following cases, or the set time may deviate and other malfunctions may occur.

● A power failure occurs.

● The circuit breaker functions.

2. Cancel

TIMER setting can be cancelled with the TIMER CONTROL buttons. (“

To cancel the ON timer, press the “ To cancel the OFF timer, press the “ STOP”button.

TIMER is cancelled and the display of set time disappears.

START”or “ STOP” mar k is flashing.

START”or “ STOP”)

START” button.

PROGRAM TIMER

● The OFF timer and ON timer can be used in combination.

● “ ”and “ ”display shows the order of the OFF timer and ON timer operation.

(Example 1) The current time is 8:00 PM.

The unit turns off at 11:00 PM, and on at 6:00 AM.

START STOP

NOTE : TIMER setting will be cancelled by power failure or breaker functioning.

(Example 2) The current time is 11:00 AM.

The unit turns on at 5:00 PM, and off at 9:00 PM.

START STOP

41

<MS09NW2, MS12/15/17NN2>

1. How to set the timer

(1) Press the OPERATE/STOP (ON/OFF) button to start the air conditioner. (2) Press the “ ” button to select the operation.

“”

SELECT

(OFF TIMER) ➔ “”(ON TIMER) ➔ TIMER RELEASE

Each time this button is pressed, the timer mode is changed in sequence.

(3) Press the “ ” button to set the timer.

TIME

Each time this button is pressed, the set time increases by 1 hour to 12 hours.

(4) After setting the ON timer, check that OPERATION INDICATOR lamp of the unit lights. NOTE 1 : Be sure to place the remote controller at the position where its signal can reach the air conditioner even during

TIMER operation, or the set time may deviate within the range of about 10 minutes.

NOTE 2 : Reset the timer in the following cases, or the set time may deviate and other malfunctions may occur.

• A power failure occurs.

• The circuit breaker functions.

NOTE 3 : The OFF TIMER and ON TIMER can not be set at the same time.

(Example 1) Setting to stop the air conditioner 3 hours later.

1 Press the “ ” button to select the “ ” 2 Press the “ ” button to set the “3Hr”.

SELECT

TIME

(OFF TIMER).

3

Hr

(Example 2) Setting to operate the air conditioner 7 hours later.

1 Press the “ ” button to select the “ ” 2 Press the “ ” button to set the “7Hr”.

SELECT

TIME

(ON TIMER).

Hr

7

2. Cancel

Select the TIMER RELEASE mode by pressing the “ ” button. (Refer to 1.(2))

SELECT

9-8. EMERGENCY-TEST OPERATION

When the remote controller is missing, has failed or the batteries run down, press the EMERGENCY OPERATION switch on the front of the indoor unit.T he unit will star t and the Operation indicator lamp will light. The first 30 minutes of operation will be the test run operation.This operation is for servicing. The indoor fan runs at Hi speed and the system is in continuous operation.The ther mostat is ON and the timer is reset to nor mal. After 30 minutes of test run operation the system shifts to EMERGENCY COOL MODE with a set temperature of 75°F in cooling.The fan speed set to Me . This operation continues until the EMERGENCY OPERATION switch is pressed again or any button on the remote controller is pressed,and after that normal operation will start. The coil frost prevention circuit operates in this mode. In the test run or Emergency operation, auto vane operates in AUTO mode with the set temperature 75°F.

NOTE : Do not press the EMERGENCY OPERATION switch during nor mal operation.

MS09NW MS09NW2

Press once <Cool> Press again <Stop>

EMERGENCY OPERATION switch

MS12NN MS15NN MS17NN MS12NN2 MS15NN2 MS17NN2

EMERGENCY OPERATION switch

42

10

SERVICE FUNCTIONS

MS09NW MS12NN MS15NN MS17NN MS09NW2 MS12NN2 MS15NN2 MS17NN2

10-1. AUTO RESTART FUNCTION

When the indoor unit is operated with the remote controller, the signals of the operation mode, the set temperature, and the fan speed are sent from the indoor electronic control P.C. board and memorized in the auto restart assembly. When the main power is turned off and then turned back on, the unit restarts automatically in the memorized set conditions approximately after 3 minutes.

NOTE:

a) When the unit operation is stopped with the EMERGENCY OPERATION switch, the unit does not restart after the

power is restored, since the signal of “Operation Stop”is memorized in the auto restart assembly.

b) Operation details may not be memorized in case the signal is transmitted by the remote controller to turn the main

power OFF within 10 seconds after the power ON..

c) When the unit operation is stopped with the remote controller before power failure, the unit does not restart until the

OPERATE/STOP (ON/OFF) button on the remote controller is pressed.

10-2.TIMER SHORT MODE

For service, set time can be shortened by short circuit of JPG and JPS on the electronic control P.C. board. The time will be shortened as follows.(Refer to page 52 or 53.) 3-minute delay : 3-minute ➔ 3-second. AUTO START : 1 hour ➔ 1-minute AUTO STOP : 1 hour ➔ 1-minute

10-3. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION

A maximum of 4 indoor units with wireless remote controllers can be used in a room. In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be modified according to the indoor unit number.

Short the connector during the timer mode.

}

How to modify the remote controller P.C. board

Remove batteries before modification. The board has a print as shown below :

MS09NW, MS12NN, MS15NN, MS17NN MS09NW2, MS12NN2, MS15NN2, MS17NN2

NOTE : For remodeling, take out the batteries first.

After finish remodeling, put back the batteries then push the RESET-button.

The P.C.board has the print “J1”and “J2”. Jumper wires are mounted to each “J1” and “J2”. Cut “J1” and “J2” accord- ing to the number of indoor unit as shown in Table 1. After modification, push the RESET button.

Table1

1 unit operation

No,1 unit No,2 unit No,3 unit No,4 unit

NOTE : At power supply failure or installation, indoor unit deletes the memory about remote controller.When the power supply

is turned on and indoor unit receives the first signals from the remote controller, the remote controller number is desig- nated as the indoor unit number.Therefore at and after the second time indoor unit accepts the remote controller of the initial setting number. At setting-error, turn the power supply off to cancel the individual operation and then turn the power supply on to restart the setting.

No modification

– – –

2 unit operation Same as at left

Cut J1

– –

43

3 unit operation

Same as at left Same as at left

Cut J2

–

4 unit operation

Same as at left Same as at left Same as at left

Cut both J1 and J2

11

TROUBLESHOOTING

MS09NW MS12NN MS15NN MS17NN MS09NW2 MS12NN2 MS15NN2 MS17NN2

11-1. Cautions on troubleshooting

1. Before troubleshooting, check the followings:

1) Check the power supply voltage.

2) Check the indoor/outdoor connecting wire for mis-wiring.

2.Take care the followings during servicing.

1) Before servicing the air conditioner, be sure to first turn off the remote controller to stop the main unit, and then after confirming the horizontal vane is closed, turn off the breaker and / or disconnect the power plug.

2) When removing the electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the components.

3) When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires.

Lead wiring

3.Troubleshooting procedure

1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality. To make sure, check how many times abnormality indication is flashing on and off before starting service work.

2) If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and the components for bursting and discoloration.

3) When troubleshooting, refer to the flow char t on page 45 and the check table on page 45.

4. How to replace batteries

Weak batteries may cause the remote controller malfunction. In this case, the remote controller can not be repaired only by the battery replacement.To operate the remote controller normally, replace the batteries in the following order. The remote controller has a RESET button. After installing new batteries, press the RESET button with tip end of ball point pen or the like, and then use the remote controller.

<MS09NW, MS12/15/17NN> <MS09NW2, MS12/15/17NN2>

Housing point

RESET

RESET button

44

RESET button

11-2 Instruction of troubleshooting

Start

Indoor unit oper-

ates. Outdoor unit doesn’t operate.

Outdoor unit

operates in only Test Run mode.

Check room

temperature thermistor.

Outdoor unit does not operate even in Test Run mode.

Refer to

D

“Check of outdoor unit” on page 49.

Indoor unit

doesn’t receive the signal from remote

controller.

Refer to

B

”Check of receiver P.C. board” on page 48.

When the remote controller is pressed or when the Emergency operation switch is pressed,the fan does not rotate,with Operation indicator lamp on.

Cause:Indoor unit 2-times-Room temperature/Indoor coil thermistor trouble. 3-times-Indoor fan motor trouble

Operation monitor lamp on the indoor unit is flashing on and off.

2-time flash

2.5-second OFF

<MS09>

3-time flash

2.5-second OFF

Indoor unit doesn’t receive the signal from remote controller. Also, operation monitor lamp doesn’t flash, when the emergency operation switch is pressed.

Refer to “Check

C

of indoor electric control P.C. board” on page 49.

11-2-1 troubleshooting check table

Operation Indicator

Refer to

A

“Check of indoor fan motor” on page 47.

Check indoor coil thermistor. Refer to“Test point diagram and voltage” on page 52 and 53.

Look at the left lamp flash for the self check table.

w Before taking measures make sure that the symptom reappears, for accurate troubleshooting. Self check table

Abnormal

NO.

1

2

point

Indoor coil thermistor

Room temperature thermistor

Indoor fan motor

2-time flash

2.5-second OFF

<MS09>

3-time flash

Indication

2.5-second OFF

Symptom

Outdoor unit does not run.

Indoor fan repeats 12 seconds ON and 3 minutes OFF. When the indoor fan breaks, the fan keeps stopping.

Detect method

Detects Indoor coil/room temperature thermistor short or open circuit every 2 seconds during operation.

When rotational frequency feedback signal is not emit during 12-second indoor fan operation

● Check thermistor calibration

● Reconnect connector

● Check indoor electric P.C. board

● Disconnect connector CN211 and then

● Check indoor electronic control P.C.

● Check indoor fan motor

● Reconnect connector

Check room temperature. Refer to“Test point diagram and voltage” on page 52 and 53.

Repair

check connector CN121 - to make sure rotational frequency feedback signal of 1.5V or over exists.

board.

2

3

45

MS09NW MS12NN MS15NN MS17NN MS09NW2 MS12NN2 MS15NN2 MS17NN2 11-2-2 Trouble criterion of main parts

Part name

Room temperature thermistor

Indoor coil thermistor

Compressor

Indoor fan motor

Measure the resistance with a tester. (Part temperature 50°F ~ 86°F)

Measure the resistance between the terminals with a tester. (Coil wiring temperature14°F ~ 104°F)

C-R C-S

Measure the resistance between the terminals with a tester. (Coil wiring temperature50°F ~ 86°F)

WHT-BLK

Motor partSensor partMotor part

BLK-RED

Measure the voltage Power ON.

BRN-YLW YLW-GRY

Check method and criterion

Normal

8k" ~ 20k"

MU09

0.8~1.1"

1.9~2.4"

MU12

1.9~2.4" 1.4~1.9"

2.7~3.4"

Normal

MS09

76~83 "

70~76 "

Normal

MS09

4.5 ~ 5.5V

(When fan revolved one time)

0V➔5V➔0V (Approx.)

Abnormal

Opened or short-circuit

Normal

MU15 MU17

1.4~1.8"

2.4~3.0"

2.3~2.9"

Remain 0V or 5V

Abnormal

Opened or

short-circuit

Abnormal

Opened or

short-circuit

Abnormal

MS09

Figure

WHT RED

BLK

F

YLW GRY BRN

1 2 3

Outdoor fan motor

Vane motor

Normal

WHT-BLK BLK-YLW YLW-BLU BLU-BRN

BRN-RED

MS12/15

67~73"

9~9.8"

4.9~5.5"

5.8~6.4" 28~32" 36~40"

MS17

53~59" 10~12"

4.6~5.0"

5.4~6.0"

Measure the resistance between the terminals with a tester. (Coil wiring temperature14°F ~ 104°F)

Normal

WHT-BLK BLK-YLW

MU09

55~68"

114~141"

MU12/15/17

102~126"

97~120"

Measure the resistance between the terminals with a tester. (Part temperature 50°F ~ 86°F)

Normal

09NW

282 ~ 305"

12/15/17NN

358 ~ 387"

Abnormal

Opened or short-circuit

Abnormal

Opened or

short-circuit

Abnormal

Opened or

short-circuit

MS12/15/17

YLW

BLU

BRN

RED

MU09

RED

MU12/15/17

RED ORN

ORN

BLK

F

WHT

BLK

P

WHT

BLK

P

WHT

46

F:INNER FUSE P: INNER PROTECTOR

1~2

MUM30NN, MUM30NN2 11-2-3 Trouble criterion of main parts

Part name

Measure the resistance between the terminals with a tester. (Coil wiring temperature 14-F ~ 104-F)

Normal (KH122WEV)

Compressor

Outdoor fan motor

MUM30NN2 only High pressure switch (H.P.S.)

A

Check of indoor fan motor

Indoor fan does not operate.

C-R

C-S 4.8~5.2'

Normal (KH122WES) C-R C-S 1.9~2.4'

Measure the resistance between the terminals with a tester. (Coil wiring temperature 14-F ~ 104-F)

Normal (Upper) WHT-BLK BLK-YLW YLW-BLU BLU-RED

Measure the resistance between the terminals with a tester.

High pressure switch (H.P.SWITCH)

Open

Short

341PSIG 398PSIG

Check method and criterion Figure

MUM30NN

Abnormal

Opened or

short-circuited

0.8~1.1'

Normal (RH167NAB)

2.1~2.7'

4.0~5.0'

MUM30NN2

Normal (RH167NAB)

0.8~1.1'

2.1~2.7'

4.0~5.0'

Normal (Lower) 60~75' 15~20' 12~16'

51~64'

50~65' 14~19' 12~16' 54~67'

341I21PSIG

+7

398 PSIG

-14

Tur n OFF the power supply. Check connector (Fan motor) visually.

Normal

Short

Open

Abnormal

Opened or

short-circuited

Abnormal

Opened or

short-circuited

Abnormal

In case of excepting the left description.

BLK

P

: INNER PROTECTOR

YLW

P

WHT

ORN

RED

BLU

No

Reconnect lead wires

Are lead wires connected?

Disconnect lead wires from connector (Fan motor) on indoor electronic control P.C. board. Measure resistance between lead wires No.1 and No.3 and then No.2 and No.3 (MS09)

Is resistance 0 (short circuit) or (open circuit)?

Repair indoor fan motor.

Yes

Yes ( 0 or )

{

No.1 and No.4 and then No.3 and No.4 (MS12/15/17)

MS12/15/17

No

(others)

MS09

No

47

Is soldered point normal?

Yes

}

Replace indoor electronic control P.C. board.

Insert screwdriver into air outlet to rotate indoor fan motor slowly for 1 revolution or over, and measure voltage between CN 121

Does voltage repeat 0V DC

and more than 5V DC?

No

Re-solver it.

.

Yes

Check of remote controller and receiver P.C. board

B

Indoor unit operates by pressing the EMERGENCY OPERATION switch, but does not operate with the remote controller.

W Check if the remote controller is exclusive for this air conditioner.

Switch on the remote controller

Is LCD display on remote controller visible?

Yes

Remove batteries and then set them back.Check if the unit operates with remote controller.

Does the unit operate with remote controller?

Yes

No (not clear)

No

Tur n a radio to AM and press switch on remote controller.

OK

Connect properly.

No

Replace batteries.(see page 44.)

Is noise heard from radio?

Yes

Are there any fluorescent lights of inverter or rapid-start type within the range of 3.28ft?

No

MS12/15/17

The connector connecting Receiver P.C. board and Electric control P.C. board is properly fixed.

Yes

Replace Receiver P.C. board.

No

Yes

Replace remote controller.

● Re-install the unit away from lights.

● Attach a filter on receiving part.

MS09

Connect properly

Replace Auto Restart Assembly.

Replace Electric control P.C. board.

No

The unit receives signal of Operate ON/OFF with remote controller, and emits a beep tone.

Yes

OK

The connecter of Auto Restart Assembly is properly fixed.

Yes

Replace Auto Restart Assembly.

The unit receives signal of Operate ON/OFF with remote controller, and emits a beep tone.

Yes

OK

The unit receives signal of Operate ON/OFF with remote controller, and emits a beep tone.

Yes

OK

48

Product number up to 7004651T

MS09NW product number after 7004651T, and MS09NW2

Check of indoor electronic control P.C. board

C

The unit doesn’t operate with the remote controller. Also, the OPERATION INDICATOR lamp doesn’t light up by pressing the EMERGENCY OPERATION switch.

Replace fuse.

Yes

No

Is fuse(F11)blown?

Check both “parts side”and “pat-

w

tern side trol P.C. board visually

of indoor electronic con-

Be sure to check both fuse and varistor in any case.

Trouble of indoor electronic control P.C. board.

W Be sure to connect the terminal block in the outdoor

unit to the power supply cord when the varistor and fuse breaks immediately after installing (when you turn on the power supply first). Also, replace the varistor even when only the fuse breaks.

D

Check of outdoor unit

Is varistor(NR11)burnt?

No

Yes

Replace varistor.

(1) Compressor and outdoor fan do not operate.(Only indoor fan operates.) MU09NW MU12NN MU15NN MU17NN MU09NW2 MU12NN2 MU15NN2 MU17NN2

Start

Press Emergency operation switch. 3-minute time delay works. Test mode operates for 30 minutes.

Check voltage to terminal block of outdoor unit. Is there 115V(MS09), 208/230V(MS12/15/17) to terminal block between - (MS09), (MS12/15/17)?

Check voltage to terminal block of indoor unit.Is there 12V to terminal block between - ?

Check the outdoor fan motor, compressor, relay, and wiring.

N

L1

Yes

2

Yes

L1

L2

1

No

Check the indoor, outdoor connection and respective power supply.

No

Replace indoor electronic control P.C. board.

49

(2) Compressor and outdoor fan do not operate.(Only indoor fan operates.) MUM30NN MUM30NN2

Start

Press Emergency operation switch. 3-minute time delay works. Test mode operates for 30 minutes.

L1

Is there 230V AC to terminal block between - ?

Yes

Check voltage to contactor 52C. Check voltage to terminal block of outdoor unit.Is there 12V DC to terminal block between - ?

No

Check voltage to terminal block of indoor unit.Is there

12V DC to terminal block between - ?

Check the indoor unit.

No

2

1

L2

2

1

No

Tur n on outdoor power supply.

Yes

Check Contactor 52C. If defective replace.

Yes

Check the indoor and outdoor connection.

(3) Compressor does not operate.(Outdoor fan operates.) MUM30NN MUM30NN2

Start

Measure resistance to contactor 52C. Is resistance 0' (short) or ' (open).

Yes

No

Check resistance to over current relay 51C1, 51C2 and 51C3. Is there continuity at normal temperature?

Yes

Measure resistance between the terminals at 3 points on compressor. Is resistance 0' (short) or ' (open). (see page 47)

No

Check the outdoor unit wiring.

Replace contactor 52C.

No

Replace over current relay 51C1,51C2

or 51C3

Yes

Replace compressor.

50

(4) Only outdoor fan does not operate.(Compressor operates.) MUM30NN MUM30NN2

Start

Press Emergency operation switch. 3-minute time delay works. Test mode operates for 30 minutes.

MUM30NN2

Check power supply voltage on P.C. board.

Is there 230V AC between TAB 61and TAB62 ?

Yes

Check the primary voltage of transformer.

Is there 230V AC between connector CN64 1 and

2?

Yes

Check the second voltage of transformer.

Is there 15V AC between connector CN64 3 and 4?

Yes

Is there 230V AC in following case ? Single operation : between LD61 and LD614 Double operation : between LD61 and LD613 Tr iple operation : between LD61 and LD612

Yes

No

MUM30NN

No

Measure resistance to H.P.switch. Is resistance 0' (short) or ' (open) (see page 47)

Check and rectify wiring.

Replace H.P.switch.

Replace Fuse.

Replace Transformer.

Replace outdoor P.C. board.

No

Yes

Measure resistance to outdoor fan motor. Is resistance 0' (short) or ' (open) (see page 47)

Yes

Replace outdoor fan motor.

No

Check the outdoor unit wiring. Check the fan motor relay X64 (30NN2).

51

TEST POINT DIAGRAM AND VOLTAGE MS09NW MS09NW2 Indoor electronic control P.C. board

TAB 12 CN201 No.1

Fan motor

}

power supply

Varistor(NR11)

Fuse 250V AC 3.0A

Room temperature thermistor (RT11)

Indoor coil thermistor (RT12)

}

Power supply input 115V AC

EMERGENCY OPERATION switch

JPS

Timer short mode point

JPG

Indoor coil thermistor (RT12) Room temperature thermistor (RT11)

52

32F50 68 86 104 122 140

TEST POINT DIAGRAM AND VOLTAGE MS12NN MS15NN MS17NN MS12NN2 MS15NN2 MS17NN2 Indoor electronic control P.C. board

Fan motor power supply

Me Lo Hi

}

8 7 5 6 4 3 2 1

Varistor(NR11)

Fuse 250V AC 3.0A

Power supply input 115V AC

}

JP7

+

JP9

--

JP11

+

JP24

--

12V DC

}

5V DC

}

CN201

EMERGENCY OPERATION switch

JPS

Timer short mode point

JPG CN112

CN111

Room temperature thermistor (RT11) Indoor coil thermistor (RT12)

Indoor coil thermistor (RT12)

Room temperature thermistor (RT11)

32F50 68 86 104 122 140

53

TEST POINT DIAGRAM AND VOLTAGE MUM30NN Outdoor electronic control P.C. board

10~17V DC while 52C is ON.

0V DC while 52C is OFF

<Comp-control signal input>

52C Signal

A UNIT

+

--

52C Signal

B UNIT

+

--

52C Signal

C UNIT

+

--

}

230V AC

Triple operation

}

230V AC

POWER TRANS FORMER

OUT PUT

}

15V DC

2

IN PUT 15V DC

}

1

FUSE (2A/250V)

Single / Double operation

230V AC

54

TEST POINT DIAGRAM AND VOLTAGE MUM30NN2 Outdoor electronic control P.C. board

10~17V DC while 52C is ON.

0V DC while 52C is OFF

<Comp-control signal input>

52C Signal

A UNIT

+

--

52C Signal

B UNIT

+

--

52C Signal

C UNIT

+

--

}

230V AC

Triple operation

}

230V AC

POWER TRANS FORMER

OUT PUT

}

15V DC

2

IN PUT 15V DC

}

1

FUSE (2A/250V)

Single / Double operation

230V AC

55

RELAY OPERATION MS09NW MS09NW2 MS12NN MS12NN2 MS15NN MS15NN2 MS17NN MS17NN2

MODE

THERMOSTAT

ON

52C CONTACTOR

ON

COOL & COOL mode of I FEEL CONTROL

OFF

OFF for 2 min.

after unit starts operation

DRY & DRY mode of I FEEL CONTROL

ON

OFF

Repeats 8 min. ON/ 3min. OFF operation or 2 min. ON/3 min. OFF operation

Repeats 4 min. OFF/1 min. ON operation

ON

FAN

OFF

NOTE : When the compressor is OFF, "3-minute time delay circuit" operates.

COIL FROST PREVENTION mode are as follows

MODE

THERMOSTAT

52C CONTACTOR

INDOOR FAN RELAY

AUTO or set speed

AUTO or set speed links with 52C CONTACTOR

AUTO or set speed

OFF

INDOOR FAN RELAY

COOL & COOL mode of I FEEL CONTROL

OFF for 5 min. After

AUTO or set speed

that, OFF is

ON

prolonged until indoor coil thermistor reads termination

DRY & DRY mode of I FEEL CONTROL

temperature.

VLo speed

Indoor fan relay mode (MS12NN, MS15NN, MS17NN, MS12NN2, MS15NN2, MS17NN2)

Indoor fan speed

Hi

Me

Lo

VLo

OFF

Relay turning ON

SR144 SR143 SR142 SR141

All fan relays are OFF

56

MUM30NN

SYSTEM

Triple

Double

Single

52C CONTACTOR

All three : ON

Two of them : ON

One of them : ON

OPERATION OF 52C1, 52C2, 52C3, X61, X62, X63, X64

NOTE 1 : Compressor is on while 52C is on. 2 : Compressor is off while 52C is off. 3: Relay of X61~X63 can not turn on at the same time. 4: Relay “X64” is tur ned on only in a single operation.

52C1 52C2 52C3 X61

OFF

ON

OFF OFF OFF

ON OFF OFF

OFF OFF OFF

X62 X63

OFF

ON

OUTDOOR FAN RELAY

X61 is ON

X62 is ON

X63 is ON

X64

OFF

ON

OFF

ON

OFF

ON

ON OFF ON

OFF OFF OFF

ON OFF ON

OFF OFF ON

ON ON OFF

FAN RELAY / FAN SPEED / APPLIED VOLTAGE

FAN MOTOR RELAY

X61 is ON

X62 is ON

X63 is ON

OUTDOOR FAN SPEED

(MF1/MF2)

Hi/Hi

Me/Me

Stop/HI

APPLIED VOLTA GE TO FAN

230V AC between WHT and BLK 230V AC between WHT and YLW

230V AC between WHT and BLK(Only MF2)

OFF

ON

OFF

ON

OFF

57

MUM30NN2

SYSTEM

Triple

Double

Single

52C CONTACTOR

All three : ON

Two of them : ON

One of them : ON

OPERATION OF 52C1, 52C2, 52C3, X61, X62, X63

NOTE 1 : Compressor is on while 52C is on. 2 : Compressor is off while 52C is off. 3: Relay of X61~X63 can not turn on at the same time.

52C1 52C2 52C3 X61

OFF

ON

OFF OFF OFF

ON OFF OFF

OFF OFF OFF

X62 X63

OUTDOOR FAN RELAY

X61 is ON

X62 is ON

X63 is ON

OFF

ON

OFF

ON

OFF

ON

ON OFF ON

OFF OFF OFF

ON OFF ON

OFF OFF ON

ON ON OFF

FAN RELAY / FAN SPEED / APPLIED VOLTAGE

FAN MOTOR RELAY

X61 is ON X62 is ON X63 is ON

OUTDOOR FAN SPEED

(MF1/MF2)

Hi/Hi

Lo/Lo Lo/Lo

APPLIED VOLTA GE TO FAN

230V AC between WHT and BLK 230V AC between WHT and BLU

230V AC between WHT and BLU

OFF

ON

OFF

58

12

DISASSEMBLY INSTRUCTIONS

<"Terminal with lock mechanism" Detaching points>

In case of terminal with lock mechanism, detach the terminal as shown below. There are two types ( Refer to (1) and (2)) of the terminal with lock mechanism. The terminal with no lock mechanism can be removed by pulling it out. Check the shape of the terminal and work.

(1) Slide the sleeve and check if there is a locking lever or not.

Sleeve

1Slide the sleeve. 2Pull the terminal while

Locking lever

pushing the locking lever.

12-1 MS09NW MS09NW2

INDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing the front panel

(1) Remove the screw caps at the down of the front panel.

Remove the screws.

(2) Pull the panel down to your side slightly and unhook the

catches at the top.

Condensed water pan

(2) The terminal with this connector is a terminal

with lock mechanism

1Hold the sleeve, and pull out the terminal slowly.

Connector

Photo 1

Front panel

Outside the drain pan

Drain pan

2. Removing the electronic control P.C. board and the display P.C. board.

(1) Remove the front panel.(Refer to 1) (2) Remove the screw of the electrical cover.

Remove the electrical cover.

(3) Remove the terminal block cover.

Remove the screw of the terminal block. (4) Remove the cord clamp. (5) Remove the screw of the ground wire. (6) Disconnect all the connectors and all the lead wires on the

electronic control P.C. board. (7) Remove the electronic control P.C. board and the display

P.C. board.

Photo 2

Screws

Room temperature thermistor connector

Screw of the ground wire

Cord clamp

Terminal block cover

Electronic control P.C. board

Screw of the terminal block cover

59

OPERATING PROCEDURE PHOTOS

3. Removing the electrical box

(1) Remove the front panel.(Refer to 1) (2) Remove the electrical cover. (3) Disconnect the connector of the indoor coil thermistor. (4) Disconnect the motor connector(CN211 and CN121) and

the vane motor connector(CN151) on the electronic control P.C. board.

(5) Unhook the catches (both upper and lower), remove the

electrical box.

4. Removing the vane motor

(1) Remove the front panel. (2) Remove the screw of the vane motor, disconnect the con-

nector.

(3) Remove the vane motor.

Photo 3

Photo 4

Catch

Screw of the vane motor

5. Removing the line flow fan and the indoor fan motor

(1) Remove the front panel.(Refer to 1) (2) Disconnect the connector from the vane motor. (3) Pull out the drain hose from the nozzle assembly, remove

the nozzle assembly.

(4) Lifting the left side of the heat exchanger, remove the elec-

trical box. (5) Remove the screw fixing the fan motor. (6) Remove the hexagon socket set screws. (7) Remove the line flow fan and the fan motor.

Photo 5

Fan motor catches

Vane motor

Screw fixing the fan motor

Drain hose

Indoor coil thermistor

60

12-2 MS12NN, MS15NN, MS17NN

INDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing the front panel

(1) Remove the screw caps at the down of the front panel.

Remove the screws.

(2) Pull the panel down to your side slightly and unhook the

catches at the top.

2. Removing the electronic control P.C. board and display P.C. board

(1) Remove the front panel.(Refer to 1) (2) Remove the screw of the electrical cover.

Remove the electrical cover.

(3) Remove the screw of the terminal cover.

Remove the terminal cover. (4) Remove the screw of the terminal block. (5) Unhook the catch of the lamp holder. (6) Remove the receiver holder. (7) Remove the screw of the ground wire. (8) Disconnect all the connectors and all the lead wires on the

electronic control P.C. board.

(9) Remove the electronic control P.C. board and display P.C.

board.

Photo 1

Photo 2

Ground

Front panel

Screws

Indoor coil thermistor

Screw

Terminal block screw

61

Electrical P.C. board

OPERATING PROCEDURE PHOTOS

3. Removing the electrical box

(1) Remove the front panel.(Refer to 1) (2) Remove the electrical cover. (3) Remove the connector of the indoor coil thermistor. (4) Remove the motor connector and the vane motor connec-

tor (CN151) on the electronic control P.C. board.

(5) Remove the screw of the electrical box, remove the

electrical box.

4. Removing the indoor fan motor and the line flow fan

(1) Remove the front panel.(Refer to 1) (2) Remove the electrical box. (3) Unhook the catch on the both sides of the nozzle

assembly. (4) Remove the nozzle assembly. (5) Remove the screws of the bearing support. (6) Remove the screw of the heat exchanger and unhook the

catch. (7) Lifting the heat exchanger, remove the bearing support. (8) Remove the motor support. (9) Loose the screw fixing the line flow fan, remove the

line flow fan.

(10) Remove the screws of the motor band, remove the fan

motor.

Photo 3

Photo 4

Catch

Heat exchanger

screw

Bearing support screws

Screw

Heat exchanger

62

Photo 5

Indoor fan motor

Fan motor screws

Line flow fan Motor band

12-3 MU09NW MU09NW2

OUTDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing the cabinet

(1) Remove the screws of the top panel. (2) Remove the screw of the service panel. (3) Remove the screws of the cabinet. (4) Remove the service panel, and remove the screw from the

insides. (5) Remove the top panel. (6) Remove the cabinet.

Photo 1

Photo 2

Screw for service panel

Service panel

Screw for top plate

Screws for cabinet

Screw for top plate

2. Removing the propeller fan and the outdoor fan motor

(1) Remove the cabinet.(Refer to 1) (2) Remove the propeller fan nuts. (3) Remove the propeller fan. NOTE:Loose the propeller fan in the rotating direction for

removal. When attaching the propeller fan,align the mark on the propeller fan and the motor shaft cut section. Set the fan in position by using the cut on the shaft and the mark on the fan.

(4) Remove lead clamps and disconnect the outdoor fan motor

lead wires. (5) Remove screws fixing the fan motor. (6) Remove the outdoor fan motor.

63

Screws for cabinet

Photo 3

propeller fan

Outdoor fan motor

Set screws for outdoor fan motor

Propeller fan nut

Lead clamps

OPERATING PROCEDURE PHOTOS

3. Removing the compressor

(1) Remove the lead clamps. (2) Remove the screws fixing the relay panel. (3) Remove the screw fixing the service port. (4) Remove the terminal cover. (5) Pull out the lead from the compressor terminal. (6) Remove the overcurrent relay. (7) Remove the compressor nuts. (8) Detach the suction pipe welded section and discharge pipe

welded section .

NOTE

● Before using a torch, reclaim gas from the pipes until the pressure gauge shows 0 PSI(GAUGE).

● Use the torch under the condition that gas can be recovered even when the inner pressure rises by heat.

●Reclaim all refrigerant in an environmentally acceptable

manner.

Photo 4

Terminal cover

Compressor Suction pipe

Discharge pipe

64

12-4 MU12NN MU15NN MU17NN MU12NN2 MU15NN2 MU17NN2

OUTDOOR UNIT

OPERATING PROCEDURE

PHOTOS

1. Removing the cabinet

(1) Remove the screws of the cabinet. (2) Hold the bottom of the cabinet on the both side to remove

the cabinet.

Photo 1

Screws

Service panel

Photo 2

2. Removing the electrical parts

(1) Remove the service panel and the cabinet. (2) Remove the following parts.

•Compressor capacitor (C1)

•Outdoor fan capacitor (C2)

•Terminal block

Screws

Photo 3

65

Compressor capacitor

OPERATING PROCEDURE

3. Removing the outdoor fan motor

(1) Remove the cabinet.(Refer to 1) (2) Disconnect the connector and remove the clamp of fan

motor lead wire. (3) Remove the propeller nut and remove the propeller fan. (4) Remove screws securing the fan motor.

Photo 4

PHOTOS

Clamp

Connector

4. Removing the compressor

(1) Remove the cabinet.(Refer to 1) (2) Remove the soundproof felt. (3) Remove the terminal cover on the compressor (4) Disconnect lead wires from the glass terminal of the com-

pressor.(Refer to 2) (5) Recover gas from the refrigerant circuit. (6) Disconnect the welded part of the discharge pipe. (7) Disconnect the welded part of the suction pipe. (8) Remove nuts securing the compressor. (9) Remove the compressor.

NOTE

● Before using the torch, reclaim gas from the pipes until the pressure gauge shows 0 PSI(GAUGE).

● Use the torch under the condition that gas can be released even when the inner pressure rises by heat.

● Reclaim all refrigerant in an environmentally acceptable manner.

Propeller fan

Photo 5

Compressor

Soundproof felt

Propeller fan nut

Discharge pipe

Suction pipe

66

Compressor nuts

12-5 MUM30NN MUM30NN2

OUTDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing of the cabinet

(1)Remove the set screws of the valve cover to remove

the valve cover as shown in Photo 2.

(2)Remove the set screws of the side panel to remove

the side panel and cabinet.

Screw

Photo 2

Photo 1

Screws

2. Removing the propeller

(1)Remove the propeller nut. (2)Loosen the propeller in the rotating direction. (3)Pull the propeller forward.

Note:

● To set the propeller, fit the cut on the shaft to the mark on the propeller.

67

Photo 3

Propeller

Nut

OPERATING PROCEDURE PHOTOS

3. Removing the outdoor fan motor.

(1) Remove the cabinet.(Refer to 1) (2) Remove the propeller. (Refer to 2) (3) Disconnect the connector remove the clamp of

outdoor fan motor lead wire.

(4) Remove the screws fixing the outdoor fan motor.

Photo 4

Set screws of the relay panel

Clamp

Photo 5

Connector

68

OPERATING PROCEDURE PHOTOS

4. Removing the compressor

(1)Disconnect the cord connector.(See Phot 5) (2)Remove the set screws of the relay panel. (3)Remove the set nuts of the terminal cover. (4)Pull up the compressor. (5)Pull out the lead wires from the compressor terminal

to remove overcurrent relay. (6)Remove set nuts of the compressor base. (7)Remove the low pressure side welded part and high

pressure side welded part using a burner.

NOTE

● Before using the torch, reclaim gas from the pipes until the pressure gauge shows 0 PSI(GAUGE).

● Use the torch under the condition that gas can be released even when the inner pressure rises by heat.

● Reclaim all refrigerant in an environmentally acceptable manner.

Photo 6

Set nuts of the terminal cover

69

Nuts

13

PARTS LIST

MS09NW (W) MS09NW2 (W) 13-1. INDOOR UNIT STRUCTURAL PARTS

13-2. ACCESSORY AND

REMOTE CONTROLLER

1

5 4

6

OPTIONAL PARTS

2

3

13-1. INDOOR UNIT STRUCTURAL PARTS

Symbol

No.

Parts No. Parts Name

1

E02 268 000

2

E02 151 010

3

E02 164 100

4

E02 166 234

5

E02 151 970

6

E02 166 067

FRONT PANEL (W) GRILLE (W) AIR FILTER BOX(W) INSTALLATION PLATE SCREW CAP(W)

in Wiring

Diagram

MS09NW

(W)

1 1 2 1 1 2

78

This figure shows about MS09NW2.

Q'ty / set

MS09NW2

(W)

1 1 2 1 1 2

(Drawing No.)

2PCS/SET

Remarks

13-2. ACCESSORY AND REMOTE CONTROLLER

E02 268 426

7

E02 474 426 E02 141 083

8

REMOTE CONTROLLER REMOTE CONTROLLER REMOTE CONTROLLER HOLDER

70

1

MS09NW (W) MS09NW2 (W) 13-3. INDOOR UNIT ELECTRICAL PARTS AND

FUNCTIONAL PARTS

13-4. INDOOR UNIT HEAT EXCHANGER

7813

6

91015 11

19

3

20

17

5

4

2

W AUTO RESTART ASSEMBLY has been deleted from the parts list.

Auto restart function can work only ELECTRONIC CONTROL P.C. BOARD.

● Shows the change of parts number. Part numbers that are circled are not shown in the illustration.

1

18

12

21

13-3. INDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS

No.

Parts No. Parts Name

●

E02 199 235

1

E02 166 040

2

E02 408 702

3

E02 141 702 E02 151 303

4

E02 268 300

5

E02 151 505

6

E02 151 302

7

E02 151 509

8

E02 151 308

9

E02 151 307

10

E02 268 375

11

E02 268 453

12

E02 001 504

13

E02 268 382

14

E02 268 081

15

E02 268 385

16

E02 151 468

17

E02 151 333

18

NOZZLE (W) VANE (W) DRAIN HOSE DRAIN HOSE VANE MOTOR INDOOR FAN MOTOR RUBBER MOUNT LINE FLOW FAN BEARING MOUNT ROOM TEMPERATURE THERMISTOR INDOOR COIL THERMISTOR TERMINAL BLOCK ELECTRONIC CONTROL P.C.BOARD W SLEEVE BEARING FUSE ELECTRICAL BOX VARISTOR RECEIVER MOTOR BAND

Symbol

in Wiring

Diagram

MV

MF

RT11 RT12

TB

F11

NR11

MS09NW

Q'ty / set

(W)

1 1

1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1

MS09NW2

(W)

1 1 1

1 1 2 1 1 1 1 1 1 1 1 1 1 1 1

Remarks

(Drawing No.)

FAN GUARD

RC 4W192PCS/SET

250V/3.0A

13-4. INDOOR UNIT HEAT EXCHANGER

19

E02 155 620

20

E02 151 666

21

E02 151 667

INDOOR HEAT EXCHANGER UNION(GAS) UNION(LIQUID)

71

1 1 1

{3/8 {1/4

13-5. OUTDOOR UNIT STRUCTURAL PARTS,

FUNCTIONAL PARTS AND ELECTRICAL PARTS

MU09NW MU09NW2

510

2

17 18 19

1315

1

3

● Shows the change of parts number.

Part numbers that are circled are not shown in the illustration.

No.

Parts No. Parts Name

1 2

3 4

5 6

●

7 8 9

10 11

12 13 14 15 16 17

18

19

20

●

21

E02 096 232 E02 085 297 E02 085 521 E02 199 521 E02 085 245 E02 085 630 E02 268 900 E02 065 506 E02 096 662 E02 096 661 E02 085 515 E02 268 290 E02 474 290 E02 158 936 E02 001 641 E02 474 642 E02 085 501 E02 268 301 E02 268 353 E02 268 351 E02 474 351 E02 474 374 E02 268 374 E02 023 377 E02 268 330 E02 268 341 E02 466 340

CABINET TOP PANEL FAN GUARD FAN GUARD SERVICE PANEL OUTDOOR HEAT EXCHANGER COMPRESSOR COMPRESSOR RUBBER SET STOP VALVE(LIQUID) STOP VALVE(GAS) MOTOR SUPPORT BASE BASE CAPILLARY TUBE SERVICE PORT FUSIBLE PLUG PROPELLER FAN OUTDOOR FAN MOTOR COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR OUTDOOR FAN CAPACITOR TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK OVER CURRENT RELAY CONTACTOR CONTACTOR

Symbol

in Wiring

Diagram

MC

MF

C1 C2 C2

TB1

TB/TB2

TB3 51C 52C 52C

72

4

MU09NW

16

1 1 1

1 1 1 3 1 1 1 1

1 2 1 1 1 1 1

1

1 1

7

Q'ty / set

6

11

MU09NW2

1 1

1 1 1 1 3 1 1 1

1 1 2 1 1 1 1

1 1 1 1 1

1

8 9

14

Remarks

(Drawing No.)

KH122WES 3RUBBER

{ 1/4 { 3/8

{0.12 o {0.063 o 47-1/4

RA6W23 55F/220VAC

5.0F/250VAC

5.0F/250VAC 3P 4P 2P

MS12NN (W) MS12NN2 (W) MS15NN (W) MS15NN2 (W) MS17NN (W) MS17NN2 (W) 13-6. INDOOR UNIT STRUCTURAL PARTS

53

1

2

46

Part number that is circled is not shown in the illustration.

OPTIONAL PARTS

13-7. ACCESSORY AND

REMOTE CONTROLLER

9

This figure shows about MS12/15/17NN2.

8

13-6. INDOOR UNIT STRUCTURAL PARTS

Symbol

No.

Parts No. Parts Name

E02 270 000 E02 271 000

1

E02 272 000 E02 138 000 E02 138 010

2

E02 143 234

3

E02 141 100

4

E02 141 970

5

E02 143 067

6

E02 270 007 E02 271 007

7

E02 272 007

FRONT PANEL (W) FRONT PANEL (W) FRONT PANEL (W) FRONT PANEL (W) GRILLE (W) BOX(W) AIR FILTER INSTALLATION PLATE SCREW CAP (W) LAMP PANEL LAMP PANEL LAMP PANEL

in Wiring

Diagram

13-7. ACCESSORY AND REMOTE CONTROLLER

E02 268 426

8

E02 474 426

9

E02 141 083

REMOTE CONTROLLER REMOTE CONTROLLER REMOTE CONTROLLER HOLDER

MS

12NN

(W)

1

1 1 2 1 3 1

1

MS

12NN2

(W)

1 1 1 2 1 3 1

1 1

Q'ty / set

MS

15NN

15NN2

(W)

1

1 1 2 1 3

1

MS (W)

1 1 1 2 1 3

1

1 1

MS

17NN

(W)

1

1 1 2 1 3

1

MS

17NN2

(W)

1 1 1 2 1 3

1

1 1

Remarks

(Drawing No.)

3PCS/SET

73

MS12NN (W) MS12NN2 (W) MS15NN (W) MS15NN2 (W) MS17NN (W) MS17NN2 (W) 13-8. INDOOR UNIT ELECTRICAL PARTS

9

12

17

11

4

3

1

5

13-9. INDOOR UNIT HEAT

8

EXCHANGER PARTS

22

24

7

23

1320

21019

● Shows the change of parts number. Part numbers that are circled are not shown in the illustration.

18

13-8. INDOOR UNIT ELECTRICAL PARTS

No.

Parts No. Parts Name

●

1

E02 143 235

2

E02 143 040 E02 141 702

3

E02 408 702 E02 270 300

4

E02 272 300

5

●

E02 001 505

6

E02 270 452 E02 270 450

7

E02 271 450 E02 272 450

8

E02 270 081

9

E02 141 302

10

E02 141 303

11

E02 138 329

12

E02 141 509

13

E02 268 375

14

E02 268 385

15

E02 268 382

16

E02 141 468

17

E02 001 504

18

E02 138 307

19

E02 138 308

20

E02 138 333

21

E02 475 383

NOZZLE (W) VANE (W) DRAIN HOSE DRAIN HOSE INDOOR FAN MOTOR INDOOR FAN MOTOR RUBBER MOUNT AUTO RESTART ASSEMBLY ELECTRONIC CONTROL P.C. BOARD ELECTRONIC CONTROL P.C. BOARD ELECTRONIC CONTROL P.C. BOARD ELECTRICAL BOX LINE FLOW FAN VANE MOTOR DISPLAY P.C. BOARD BEARING MOUNT TERMINAL BLOCK VARISTOR FUSE RECEIVER P. C. BOARD SLEEVE BEARING INDOOR COIL THERMISTOR ROOM TEMPERATURE THERMISTOR MOTOR BAND SURGE ABSORBER

Symbol

in Wiring

Diagram

MF MF

MV

TB

NR11

F11

RT12 RT11

DSAR

16

MS

12NN

(W)

1 1 1

1

2 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1

MS

12NN2

(W)

1 1

2 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1

Q'ty / set

MS

15NN

(W)

1 1 1

1

2 1

1

1 1 1 1 1 1 1 1 1 1 1 1 1 1

MS

15NN2

(W)

1 1

2 1

1

1 1 1 1 1 1 1 1 1 1 1 1 1 1

MS

17NN

(W)

1 1 1

1 2 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

MS

17NN2

(W)

1 1

1

1 2 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Remarks

(Drawing No.) FAN GUARD

RA4W18 RA4W23 2PCS/SET

250V 3.0A

13-9. INDOOR UNIT HEAT EXCHANGER

22

E02 141 620

23

E02 138 667

24

E02 138 666

INDOOR HEAT EXCHANGER UNION(LIQUID) UNION(GAS)

74

1

1 1

[1/4

1

[5/8

MU12NN MU12NN2 MU15NN MU15NN2 MU17NN MU17NN2 13-10. OUTDOOR UNIT

STRUCTURAL PARTS

17

11

12

10

4

8

1

2

● Shows the change of parts number. Part numbers that are circled are not shown in the illustration.

No.

Parts No. Parts Name

E02 141 232

1

E02 141 521

2

E02 270 245

3

E02 138 630

4

E02 147 630 E02 138 515

5

E02 139 515 E02 270 900 E02 271 900

6

E02 272 900 E02 270 290

7

E02 156 290 E02 270 301

8

E02 141 501

9

E02 270 353 E02 271 353

10

E02 272 353 E02 270 351

11

E02 270 374 E02 475 374

12

E02 476 374 E02 140 936

●

E02 138 936

13

E02 271 936 E02 075 506

14

E02 139 662

15

E02 150 661

16

E02 270 233

17

E02 475 233 E02 282 340

18

E02 001 641

19

E02 474 642

20

CABINET GRILLE SERVICE PANEL OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER MOTOR SUPPORT MOTOR SUPPORT COMPRESSOR COMPRESSOR COMPRESSOR BASE BASE OUTDOOR FAN MOTOR PROPELLER FAN COMPRESSOR CAPACITOR COMPRESSOR CAPACITOR COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK CAPILLARY TUBE CAPILLARY TUBE CAPILLARY TUBE COMPRESSOR RUBBER SET STOP VALVE(LIQUID) STOP VALVE(GAS) BACK PANEL BACK PANEL CONTACTOR SERVICE PORT FUSIBLE PLUG

9

Symbol

in Wiring

Diagram

MC MC MC

MF

C1 C1 C1 C2

TB TB1 TB2

52C

5

MU12

NN

1 1 1 1

1

1 1 1

1 1

1

3 1 1 1

1 2 1

6

MU12

NN2

1 1 1 1

1

1 1 1

1

1 1 1

3 1 1

1 1 2 1

Q'ty / set

MU15

NN

1 1 1 1

1

1 1

1

1 1

1 3 1 1 1

1 2 1

MU15

NN2

1 1 1 1

1

1 1

1

1 1

1 3 1 1

1 1 2 1

15 16

7

MU17

NN

1 1 1

1

1 1 1

1

3 1 1 1

1 2 1

3

MU17

(Drawing No.)

NN2

1 1 1

1

RH167NHDT RH207NHDT

1

RH231NHDT

1 1 1

25F/370VAC 30F/370VAC

1

35F/370VAC

1

3.0F/440VAC

1

4P

1

4P {0.12 o {0.071 o 31-1/2

1

{0.12 o {0.079 o 27-9/16 {0.12 o {0.071o 21-5/8

3

3RUBBER/SET

1

{1/4

1

{5/8

1 1 2 1

Remarks

75

13-11. OUTDOOR UNIT STRUCTURAL PARTS MUM30NN MUM30NN2

Refer to MS09NW,MS15NN for indoor unit.

NOTE : When you order FRONT PANEL (R01 539 668), order LABEL (T2W E46 001) at the same time.

No. Parts No. RemarksParts Name

1

R01 539 668

2

T2W 510 509

3

R01 539 662

4

T2W 800 662

5

T2W E46 297

6

T2W E46 001

FRONT PANEL OUTER NOZZLE SIDE PANEL (L) SERVICE PANEL TOP PANEL LABEL

Symbol in

Skeleton

Wiring

Diagram

MUM30NN

Q,ty/unit

1 2 1 1 1 1

MUM30NN2

1 2 1 1 1 1

See above NOTE

76

13-12. OUTDOOR UNIT STRUCTURAL PARTS MUM30NN MUM30NN2

Refer to MS09NW,MS15NN for indoor unit.

● Shows the change of parts number. Part number that is circled is not shown in the illustration.

Symbol in

No. Parts No. RemarksParts Name

T2W 800 630

1

T2W E52 630 T2W 800 631

2

T2W E52 631

3

R01 093 115

4

T2W E46 301

5

T2W 800 302

6

T2W 416 642

7

M21 B90 641 T92 510 272

8

T92 513 200

9

T92 650 452

●

M21 195 936

10

M21 AP9 936

11

T2W 460 662

12

T2W 460 661

13

R01 L11 410

14

M21 G46 936

15

T2W 800 523

16

M21 B20 646

When servicing, cut the tube to the proper length as shownin the REFRIGERANT SYSTEM DIAGRAM see page 33 and 34.

HEAT EXCHANGER (UPPER) HEAT EXCHANGER (UPPER) HEAT EXCHANGER (LOWER) HEAT EXCHANGER (LOWER) PROPELLER FAN OUTDOOR FAN MOTOR (LOWER) OUTDOOR FAN MOTOR (UPPER) FUSIBLE PLUG CAHRGE PLUG COMPRESSOR COMPRESSOR KH-122WES COMPRESSOR CAPILLARY TUBE (for 09A, 09B) CAPILLARY TUBE (for 09A, 09B) VALVE (LIQUID) VALVE (GAS) (for 09A, 09B) VALVE (GAS) (for 15C) CAPILLARY TUBE (for 15C) REAR PANEL HIGH PRESSURE SWITCH

Skeleton

Wiring

Diagram

MF2 MF1

MC1,MC2 MC1,MC2

MC3

63H

77

MUM30NN

Q,ty/unit

1

2 1 1 3 6 2

1 2

3 2 1 1 1

MUM30NN2

1

1 2 1 1 3 6

2 1

2 3 2 1 1 1 3

RA4N80-AC RA4N55-AB

KH-122WEV

RH-167NAB

[0.12o[0.055o74-13/16 [0.12o[0.055o74-13/16

(1/4) (3/8) (5/8) [0.12o[0.063o126

13-18. OUTDOOR UNIT ELECTRICAL PARTS MUM30NN MUM30NN2

● Shows the change of parts number.

No. Parts No. RemarksParts Name

T2W 738 353

1

●

T2W 903 353

2

T2W 500 353 T2W E46 451

3

T2W E52 451

4

T2W 800 382

5

T2W 800 339

6

T2W 382 342

7

T2W 359 340

8

T2W 800 375

9

T2W E41 374

10

T2W E42 375

11

T2W 464 340

12

T2W 394 330

13

T2W E64 410

MC1. MC2. CAPACITOR 35+ 330V MC1. MC2. CAPACITOR MC3. CAPACITOR OUTDOOR P. C. BOARD OUTDOOR P. C. BOARD FUSE TRANSFORMER MC1. MC2. CONTACTOR MC3 CONTACTOR TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK MC1. MC2. THERMAL SWITCH MC3 THERMAL SWITCH SURGE KILLER

Symbol in

Skeleton

Wiring

Diagram

C1,C2 C1,C2

C3

F,F61

T

52C1, 52C2

52C3 TB1,TB TB4,TB

TB2,3,TB

51C1, 51C2

51C3

CR

Q,ty/unit

MUM30NN

2

1 1

1 1 2 1 1 1 1 2 1 1

MUM30NN2

2 1

1 1 1 2 1 1 1 1 2 1

55+ 220V 25+ 370V

2A 250V

G4F-11123T VF-12HU

UNIT 15C UNIT 09A.O9B MRA98881 MRA98921

78

14

OPTIONAL PARTS

1. REFRIGERANT PIPES

The air conditioner has flared connections its on indoor and outdoor sides. Please use the optional extension pipe as follows.

Pipe size O.D

Pipe length

10ft 16ft 23ft 33ft 10ft 16ft 23ft 33ft 49ft

Cross-

section

A-Gas B-Liquid

3/8

1/4

5/8

Insulation

C 13/16 D 1-1/16

C 1-7/32 D 1-1/16

MS09NW, MS09NW2

MS12NN, MS12NN2 MS15NN, MS15NN2 MS17NN, MS17NN2

Part No.Model

MAC - 440PI MAC - 441PI MAC - 442PI MAC - 443PI MAC - 670PI MAC - 671PI MAC - 672PI MAC - 673PI MAC - 674PI

2. AIR CLEANING FILTER

● AIR CLEANING FILTER removes fine dust of 0.01 micron from air by means of static electricity.

● Normal life of AIR CLEANING FILTER is 3 months. However, when it becomes dirty, replace it as soon as possible.

● Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet.

● DO NOT reuse AIR CLEANING FILTER even if it is washed.

● DO NOT remove or attach AIR CLEANING FILTER dur ing unit operation.

Additional

refrigerant

charge

R-22(Oz)

0

1

0

1 3

Part No. Model

MAC-1000FT MS09NW, MS09NW2

MAC-1100FT MS12NN, MS15NN, MS17NN, MS12NN2, MS15NN2, MS17NN2

3. DEODORIZING FILTER

● DEODORIZING FILTER removes ammonia and hydrogen sulphide emitted from tobacco, and odors of pets.

● Clean DEODORIZING FILTER every two weeks. If the filter is par ticular ly dir ty, clean the filter more often.

● For cleaning, soak the filter in warm water for a while, and then wash and rinse it.Dr y the filter in the shade thoroughly.

● When the filter color is still dark even after cleaning, replace the filter with a new one.

Replace the filter at least once a year.

Part No. Model

MAC-1500DF

MAC-1600DF

MS12NN, MS15NN, MS17NN, MS12NN2, MS15NN2, MS17NN2

MS09NW, MS09NW2

● DEODORIZING FILTER and AIR CLEANING FILTER can be attached on either side.

79

HEAD OFFICE MITSUBISHI DENKI BLDG.MARUNOUCHI TOKYO100-8310 TELEX J24532 CABLE MELCO TOKYO

C

Copyright 1997 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD. Issued in Mar. 2000 NO. OB192 REVISED EDITION -B 6026 Issued in Dec. 1997 NO. OB192 REVISED EDITION -A 7143 Issued in May. 1997 NO. OB192 5042 Printed in Japan

New publication, effective Mar. 2000. Specifications subject to change without notice.

Mitsubishi Electronics MS09NW, MU09NW, MUM30NN, MS12NN, MU12NN User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual