Mitsubishi MUX-10NV-E1, MUX-18NV-E1, MUX-24NV-E1 Service Manual

SPLIT-TYPE AIR CONDITIONERS

No. OB183

SECOND EDITION

SERVICE MANUAL

Wireless type

Models

MSX-05NV - E1

MSX-09NV - E1

MSX-12NV - E1

(WH)●MUX-10NV - E1 (WH)●MUX-18NV - E1 (WH)●MUX-24NV - E1

CONTENTS

1.TECHNICAL CHANGES ····································2

2.PART NAMES AND FUNCTIONS······················3

3.SPECIFICATION·················································6

4.OUTLINES AND DIMENSIONS ·························9

5.WIRING DIAGRAM···········································11

6.REFRIGERANT SYSTEM DIAGRAM ··············14

7.PERFORMANCE CURVES ······························21

8.MICROPROCESSOR CONTROL ····················23

9.SERVICE FUNCTIONS ····································30

10.TROUBLESHOOTING······································31

11.DISASSEMBLY INSTRUCTIONS·····················37

12.PARTS LIST······················································46

13.OPTIONAL PARTS ····································BACK

1 TECHNICAL CHANGES

MSX-10LV- E2 MSX-10NV- E1

MSX-18LV- E2 MSX-18NV- E1

MSX-24NV- E1 New model

Connectable unit table

	INDOOR UNIT	OUTDOOR UNIT
	MSX-05NV x 2	MUX-10NV- E1
	MSX-09NV x 2 or x 3	MUX-18NV- E1
	MSX-09NV x 1 or x 2	MUX-24NV- E1
	MSX-12NV x 1 or x 2

It is not connected except above connection of indoor unit and outdoor unit.

1.	Indoor unit	has changed.
2.	Indoor fan	has changed. (RC2V17-AA					RC4V19-AA)
3.	Compressor	changed. (KH-134VLC			KH-134VLL)

4.Remote controller model has changed.

5.Microprocessor controller has changed.

6.The receiving system has changed.

INDOOR	OUTDOOR	INDOOR		OUTDOOR
	220/240V	220/240V.50Hz		12VDC
	MSX-18NV			MSX-18NV
220/240V		220/240V.50Hz	12VDC
220/240V		220/240V.50Hz		220/240V
50Hz	220/240V			50Hz
				12VDC

7. Terminal block has changed.

	L N 2 L N 2	L N	2 1 2 1	2 1
8.	Wiring diagram has changed.			MSX-18NV- E1
9.	Compressor protector has changed. (MSX-18NV- E1 )
	THERMAL SWITCH
	OVERCURRENT RELAY	OVERCURRENT RELAY (INNER THERMOSTAT)

2

2 PART NAMES AND FUNCTIONS

INDOOR UNIT

MSX-05NV- E1 , MSX-09NV- E1 , MSX-12NV- E1

(When the front panel is open)

OUTDOOR UNIT

MUX-10NV- E1 , MUX-18NV- E1

MUX-24NV- E1

Air inlet (back and side)

Piping

Drainage hose

Air outlet

Drain outlet

3

MSX-05NV- E1

MSX-09NV- E1

REMOTE CONTROLLER

.

4

MSX-05NV- E1 (Product number 7000501T~)

MSX-09NV- E1 (Product number 7000701T~)

MSX-12NV- E1

5

3

SPECIFICATION

Model

MSX-10NV- E1

INDOOR MSX-05NV- E1

OUTDOOR MUX-10NV- E1

Function

Cooling

Power supply

Single phase, 220-240V, 50Hz

Unit No.

Single

Double

A or B

A + B

Capacity

kW

2.2

1.3x2

Capacity

Dehumidification

R/h

0.8

0.2x2

Air flow

Indoor

K/h

492

492x2

Outdoor

K/h

1,560

1,560

Power outlet

A

10

Running

Indoor

A

0.17

0.17x2

current

Outdoor

A

3.33-3.43

3.36-3.46

Power input

Indoor

W

35

35x2

Outdoor

W

705-755

720-760

Electrical

Auxiliary heater

A(kW)

–

–

Indoor

%

94–86

94–86

data

Power factor

Outdoor

%

96-92

97-92

Starting current

A

17

Compressor motor current

A

3.05-3.15

3.25-3.35

Fan motor

Indoor unit

A

0.17

0.17x2

current

Outdoor unit

A

0.27

Coefficient of performance(C.O.P)

2.97-2.78

3.29-3.13

Model

KH - 134VLL

Compressor

Output

W

650

Winding resistance (at 20:)

"

C -R 4.66 C -S 8.20

Indoor

Model

RC4V 19 - A A

fan motor

Winding resistance (at 20:)

"

WHT - BLK 292 BLK - RED 324

Outdoor

Model

RA6V22 - BC

fan motor

Winding resistance (at 20:)

"

WHT - BLK 325.0 BLK - RED 393.3

Width

mm

815

Indoor unit

Height

mm

275

Dimensions

Depth

mm

183

Width

mm

760

Outdoor unit

Height

mm

540

Depth

mm

230

Weight

Indoor unit

kg

8

Outdoor unit

kg

31

Air direction

5

Sound level

Indoor unit

dB

37

(Hi)

Outdoor unit

dB

46 - 47

Fan speed

Indoor unit

rpm

1,100

Special

(Hi)

Outdoor unit

rpm

700

remarks

Fan speed

Indoor unit

4

regulator

Outdoor unit

1

Refrigerant filling capacity(R-22)

kg

1.15

Thermistor

RT11(at 25:)

k"

10

RT12(at 25:)

k"

10

NOTE:Test conditions

Cooling : Indoor

DB27°C / WB19°C

Outdoor

DB35°C / WB24°C

6

Model

MSX-18NV- E1

INDOOR UNIT MSX-09NV- E1

OUTDOOR UNIT MUX-18NV- E1

Function

Cooling

Power supply

Single phase, 220-240V, 50Hz

Unit No.

Single

Double

Double

Triple

A or B or C

A + B or A + C

B + C

A + B + C

Capacity

kW

2.3

2.1x2

1.3x2

2.1+1.3x2

Capacity

Dehumidification

R/h

0.9

0.8x2

0.2x2

0.8+0.2x2

Air flow

Indoor

K/h

492

492x2

492x2

492x3

Outdoor

K/h

1,320

1,980

1,320

1,980

Power outlet

A

15

Running

Indoor

A

0.17

0.17x2

0.17x2

0.17x3

current

Outdoor

A

3.63-3.73

7.06-7.16

3.66-3.76

7.09-7.19

Power input

Indoor

W

35

35x2

35x2

35x3

Outdoor

W

755-795

1500-1580

760-810

1495-1585

Electrical

Auxiliary heater

A(kW)

–

–

–

–

Power factor

Indoor

%

94-86

94-86

94-86

94-86

data

Outdoor

%

95-89

97-92

94-90

96-92

Starting current

A

17

17x2

17

17x2

Compressor motor current

A

3.3-3.4

6.67-6.77

3.32-3.42

6.69-6.79

Fan motor

Indoor unit

A

0.17

0.17x2

0.17x2

0.17x3

current

Outdoor unit

A

0.32

0.37

0.32

0.37

Coefficient of performance(C.O.P)

2.91-2.77

2.68-2.55

3.13-2.95

2.94-2.78

Model

KH-134VLLx2

Compressor

Output

W

650x2

Winding resistance (at 20:)

"

C-R 4.66, C-S 8.20

Indoor

Model

RC4V19-AA

fan motor

Winding resistance (at 20:)

"

WHT-BLK 292

BLK-RED 324

Outdoor

Model

RA6V50-CB or RA6V50-CC

fan motor

Winding resistance (at 20:)

"

WHT-BLK117.3 BLK-YLW 65

YLW-RED 49.6

Width

mm

815

Indoor unit

Height

mm

275

Dimensions

Depth

mm

183

Width

mm

850

Outdoor unit

Height

mm

605

Depth

mm

290

Weight

Indoor unit

kg

8

Outdoor unit

kg

54

Air direction

5

Sound level

Indoor unit

dB

37

(Hi)

Outdoor unit

dB

53

Fan speed

Indoor unit

rpm

1,100

Special

(Hi)

Outdoor unit

rpm

830-860

remarks

Fan speed

Indoor unit

4

regulator

Outdoor unit

2

Refrigerant filling capacity(R-22)

kg

0.75+0.75

Thermistor

RT11(at 25:)

k"

10

RT12(at 25:)

k"

10

NOTE:Test conditions

Cooling : Indoor

DB27°C / WB19°C

Outdoor

DB35°C / WB24°C

7

Model

MSX-24NV- E1 INDOOR UNIT MSX-09NV-

OUTDOOR UNIT MUX-24NV- E1

E1

MSX-12NV- E1

Function

Cooling

Power supply

Single phase, 220-240V, 50Hz

Single

Single

Double

Double

Double

Triple

Triple

Four

Unit No.

A+C or A+D

A+B+C or

A+C+D or

A or B

C or D

A+B

C+D

A+B+C+D

B+C or B+D

A+B+D

B+C+D

Capacity

kW

3.4

2.6

2.0x2

1.7x2

3.1+2.3

1.95x2+2.2

2.9+1.55x2

1.95x2+1.55x2

Capacity

Dehumidification

R/h

1.6

1.2

0.5x2

0.3x2

1.4+0.8

0.5x2+0.8

1.3+0.3x2

0.5x2+0.3x2

Air flow

Indoor

K/h

558

492

558x2

492x2

558+492

558x2+492

558+492x2

558x2+492x2

Outdoor

K/h

2400-2640

Power outlet

A

25

Running

Indoor

A

0.17

0.17

0.17x2

0.17x2

0.17x2

0.17x3

0.17x3

0.17x4

current

Outdoor

A

6.2-6.0

4.4-4.3

6.5-6.5

4.6-4.4

10.8-10.4

11.1-10.6

11.1-10.6

11.5-10.9

Power input

Indoor

W

35

35

35x2

35x2

35x2

35x3

35x3

35x4

Outdoor

kW

1.32-1.38

0.94-0.98

1.39-1.49

0.98-1.02

2.33-2.40

2.37-2.45

2.37-2.45

2.45-2.50

Electrical

Auxiliary heater

A(kW)

–

–

–

–

–

–

–

–

Power factor

Indoor

%

94–86

94–86

94–86

94–86

94–86

94–86

94–86

94–86

data

Outdoor

%

97-96

97-96

97-96

97-96

97-96

97-96

97-96

97-96

Starting current

A

48

Compressor motor current

A

6.2-6.0

4.4-4.2

6.2-6.0

4.4-4.2

10.6-10.2

10.6-10.2

10.6-10.2

10.6-10.2

Fan motor

Indoor unit

A

0.17

0.17

0.17x2

0.17x2

0.17x2

0.17x3

0.17x3

0.17x4

current

Outdoor unit

A

0.28-0.31

Coefficient of performance(C.O.P)

2.51-2.40

2.67-2.56

2.74-2.56

3.24-3.12

2.25-2.19

2.46-2.39

2.42-2.35

2.70-2.65

Model

RH-174VGH+RH-231VHA

Compressor

Output

W

RH-174VGH 800

RH-231VHA 1100

Winding resistance (at 20:)

"

RH-174VGH C-R3.30 C-S5.80

RH-231VHA C-R2.13 C-S3.91

Indoor

Model

RC4V19-AA

fan motor

Winding resistance (at 20:)

"

WHT-BLK 292

BLK-RED 324

Outdoor

Model

RA6V25-AA

fan motor

Winding resistance (at 20:)

"

WHT-BLK142 BLK-RED135

Width

mm

815

Indoor unit

Height

mm

275

Dimensions

Depth

mm

183

Width

mm

750

Outdoor unit

Height

mm

900

Depth

mm

330

Weight

Indoor unit

kg

8

Outdoor unit

kg

72

Air direction

5

Sound level

Indoor unit

dB

MSX-09NV 37

MSX-12NV 42

(Hi)

Outdoor unit

dB

49

Fan speed

Indoor unit

rpm

MSX-09NV 1100

MSX-12NV 1230

Special

(Hi)

Outdoor unit

rpm

530-570

remarks

Fan speed

Indoor unit

4

regulator

Outdoor unit

1

Refrigerant filling capacity(R-22)

kg

1.15+1.15

Thermistor

RT11(at 25:)

k"

10

RT12(at 25:)

k"

10

NOTE:Test conditions

Cooling : Indoor

DB27°C / WB19°C

Outdoor

DB35°C / WB24°C

8

4 OUTLINES AND DIMENSIONS

INDOOR UNIT		Unit : mm
MSX-05NV- E1	, MSX-09NV- E1
MSX-12NV- E1

OUTDOOR UNIT

MUX10NV- E1

50		Air in		50
Drainage
4 hole
[16.2			56	105
Air in		21
	108	60	50
70
Air out
230		760
		112

		540
		262.5	ø
			415
	260	10	250
			500
	295		Bolt pitch for installation
			4 holes 10 21
		Bolt pitch

35

58

Wiring hole

Rear side

20

63
57	384.5	57
		57
67		57
		68
	68

REQUIRED SPACE

Unless any obstacle			more
exists in front ,right
and left sides.			10cm or
				more
			or
10cm			10cm
	or	more

	or	more
50cm

Unless any obstacle exists in right , left and rear sides.

Service panel

151

Stop valve 1/4F

Stop valve 3/8F

Unit A

35cm	or	more

9

OUTDOOR UNIT

MUX-18NV- E1

168

Air in

4 Drain holes [ 16.2

290

5

		605
		292
16	310	20
		16

MUX-24NV- E1

					REQUIRED SPACE Unless any
							more	obstacle exists
				4 holes-10 21				in front, right
							or	and left sides.
	Air in				10cm		10cm	ormore
						or	more	10cm
57		35		34
	51							A
				91
		80	236	54				B
							more	C
							or
							50cm

						Unless any
	Air out	Electrical wiring entrance (Rear) 15			25	obstacle exists
	850		70	66		in right ,left ,
						and rear sides.
30	133					30
		186	52
						Stop valve 1/4F

35cm	or	more

Liquid side union 1/4F

57	Gas side
57	union 3/8F
57
90

Service portBC

	50	Service port
500			Stop valve		154.6
Bolt pitch for installation		A
			3/8F
				2-U-Shape noched hols
200	500	200		(Base bolt M10)
	Air in		29
Air in			372	412
			53
Air out		2-Oval hols(12Å ~36)
		(Base bolt M10)

			900
330	34	328	72.2
			58.2
Handle for moving
		750	5050
	27		5050505050

Handle for moving

Wiring hole

Liquid pipe (flared É” 6.35)

Gus pipe (flared É” 12.7)

64.8	Gus pipe
	(flared É” 9.52)

264.2

10

5 WIRING DIAGRAM

INDOOR UNIT MODELS MSX-05NV- E1 , MSX-09NV- E1 , MSX-12NV- E1

LTB

SR11

CN

RT12

TAB12

112

BRN

HIC1

TO OUTDOOR

CN

RT11

UNIT

BRN

F12

BLU 1

111

CONNECTING

BLU

CN201

12VDC 2

WHT

BLU 2

1

NR11

3

BLK

1

CN

GRY

2

121

YLW

3

CN202

1

TRANS

12VDC

BLK

2

3

BRN

4 MF

C11

1

F11

2

WHT

5

N

BLU

RED

1

6

BLU

1

CN

LD101

CN

CN211

ELECTRONIC CONTROL P.C BOARD

GRN/YLW

GRN/YLW

122

151

POWER

GUARD

PLATE

SUPPLY

5

CORD

~/N220-240V

POWER MONITOR,

50Hz

MV

RECEIVER

P.C.BOARD

CIRCUIT BREAKER

REMOTE

CONTROLLER

SYMBOL	NAME	SYMBOL	NAME	SYMBOL	NAME
C11	INDOOR FAN CAPACITOR	NR11	VARISTOR	HIC1	DC/DC CONVERTER
F11	FUSE(3.15A)	RT11	ROOM TEMPERATURE THERMISTOR	TB	TERMINAL BLOCK
MF	FAN MOTOR	RT12	INDOOR COIL TEMPERATURE THERMISTOR	F12	FUSE (93;)
MV	VANE MOTOR	SR11	SOLID STATE RELAY

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

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

3.Symbols below indicate.

:Terminal block, : Connector

OUTDOOR UNIT

MODEL MUX-10NV- E1

POWER SUPPLY

L

BRN

NO

52C2COM

WHT

1 51C

WHT

220-240V

N

BRN

BRN

WHTWHT

BLU

52C1

C

50Hz

WHT

TB3

NO

COM

F13

1

C1

S

MC R

CIRCUIT BREAKER

GRN/YLW

X2

BLU

WHT

WHT

RED

WHT

F12

BLU

BLK

YLW

TB2

2

1

1

BRN

BRN

4

3

2

52C2

C2

BLU 2 BLK MF

YLW

BLU

X1

TB2

RED 3

RED

2

1

TB

RED

4

3

1

52C1

2

WHT

RED

TO INDOOR

BLU

UNIT No.A

12VDC1

X1

BLU

CONNECTING

BLK

21R1

BLU

BLU

2

GRY

TO INDOOR

21R2

BLU

2

21R

UNIT No.B

TB3 BLU

12VDC1

X2

CONNECTING

ORN

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

C1

COMPRESSOR CAPACITOR

TB,TB2,TB3 TERMINAL BLOCK

51C1 OVER CURRENT RELAY(INNER THERMOSTAT)

C2

OUTDOOR FAN CAPACITOR

X1

RELAY(A)

52C1

COMPRESSOR CONTACTOR(A)

F12

FUSE(2A)

X2

RELAY(B)

52C2

COMPRESSOR CONTACTOR(B)

F13

FUSE(2A)

21R

BYPASS VALVE SOLENOID COIL

MC

COMPRESSOR(B,C)

21R1

SOLENOID COIL(A)

MF

FAN MOTOR

21R2

SOLENOID COIL(B)

NOTE:1. Use copper conductors only.(For field wiring) 2. Symbols below indicate.

: Terminal block, : Connector

3.on the wiring diagram shows the terminals with a lock mechanism, so it 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.

Slide the sleeve.

Pull the wire while pushing the locking lever.

11

OUTDOOR UNIT

MODEL

MUX-18NV- E1

POWER SUPPLY

L

TB

BRN

BLU

2

BLU

RED

52CA COM

BLU

C1

S

NO

BRN

220-240V

N

BLK R MC1 C

BRN

GRY F13

50Hz

BLU

3

1 3

1

WHT

F12

TB3 1

BLU 8X11 7

GRY

WHT

X11

X12

CIRCUIT BREAKER

5

WHT 5

1 51C1

GRN/YLW

BLU

BRN

BLU

RED

2

YLW 1

X2

TO INDOOR

RED1

52C2 2

BLU

TB2

BLU

C2

S

1

UNIT No.A

12VDC1

52CA

BRN

4

3 RED

BLU

TB2

BLU 21R

R MC2 C

CONNECTING

BLU

2

BLK

21R2

RED 2

BLU

WHT

WHT

2

GRY 1

X1

YLW1

WHT

1 51C2

TO INDOOR

2

BRN

4

3

52C1

UNIT No.B

8 X12

7

GRY

12VDC1

X1

YLWBLU

BLU

CONNECTING

ORN 2

BLU

21R1

X12 4 REDX11 4

RED

1 RED

C3

2

WHT 1 BRN

4

52C23

6

6

2

ORN

2

ORN

TO INDOOR

WHT

WHT

MF

X2

BRN

WHT WHT F14

2

BLK

3

BLK

UNIT No.C

12VDC1

CONNECTING

2

52C1

YLW

YLW

4

YLW

BLK

4

3

5

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

C1	COMPRESSOR CAPACITOR(A)	TB	TERMINAL BLOCK	51C1	OVER CURRENT RELAY(A)INNER THERMOSTAT
C2	COMPRESSOR CAPACITOR(B,C)	X11	FAN MOTOR RELAY(A)	51C2	OVER CURRENT RELAY(B,C)INNER THERMOSTAT
C3	OUTDOOR FAN CAPACITOR	X12	FAN MOTOR RELAY(B,C)	52CA	COMPRESSOR CONTACTOR(A)
MC1	COMPRESSOR(A)	21R	SOLENOID COIL	52C1	COMPRESSOR CONTACTOR(B)
MC2	COMPRESSOR(B,C)	21R1	SOLENOID COIL(B)	52C2	COMPRESSOR CONTACTOR(C)
MF	FAN MOTOR(INNER THERMOSTAT)	21R2	SOLENOID COIL(C)	X1	RELAY(B)
F12	FUSE(2A)	F14	FUSE(2A)	X2	RELAY(C)
F13	FUSE(2A)	TB2,TB3	TERMINAL BLOCK

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

2.Symbols below indicate.

:Terminal block, : Connector

3.on the wiring diagram shows the terminals with a lock mechanism, so it 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.

Slide the sleeve.

Pull the wire while pushing the locking lever.

12

OUTDOOR UNIT

MODEL

MUX-24NV- E1

POWER SUPPLY

TB

BRN

4

3

WHT

~/N

L

BRN

52C1

WHT

WHT

WHT

1

C

N

220-240V

BRN

4 52C2 34

3

RED

2 RED MC1

50Hz

BRN

52C4

WHT

C1 3

S

R

WHT BLK

4 52C3 3

BLK

CIRCUIT

BLU

C

BREAKER

GRN/YLW

F

BLUBRN

BLUWHT

21RA

BLUWHT 1

1

21R1 BLU

BLU

BLU

RED 2

RED MC2

2 YLW 2BRN

TO INDOOR

X1

2

2 BLU

2 1

C2

3

S

R

BLK

UNIT No.A

TB1

X1

BLU

ORN

52C1

BLU

BLU

BLK

CONNECTING

1

4 3

1

2

TB6

BLU

ORN

12VDC YLW 1

7

X11

8

BLU

21R2BLUBLU

BLU BLU

1 BLU

ORN

BRN

1

2

BRN

TO INDOOR

2

2

X2

2

BLU

BLU

TB5

3

1

1

BLU

ORN

3

UNIT No.B

1

TB2

2

1

X12

X11

4

52C2

CONNECTING

X2

3

1

2

TB7

12VDC ORN

1

5

5

BLU

1

BLU

WHT

C11

WHT

BLU

BRN

21R3 BLU

2

7

GRY

1

RED

2

WHT

X3

3

ORN

ORN

TO INDOOR

2

BLU

X12

8

WHT

2

WHT

MF

UNIT No.C

1

TB3

BLU

ORN

52C3

YLW

3

BLK

CONNECTING

X3

4 3

1

2

BLU

BLU

4

12VDC WHT 1

5

BLU

1

BLU

6

BRN

21R4 BLU

2

1 2 3

2

GRY

3

TO INDOOR

2

X4

BLU

BLU

ORN 52C4

UNIT No.D

1

TB4

BLU

BLU

21RB

X4

CONNECTING

12VDCGRY

1BRN

4 3

1

2

MODEL

MUX-24NV- E1

(Product number 700501~)

L

TB

BRN

2

BRN 4

3

WHT

1

WHT

BRN

52C1 3

WHT

WHT

C

BRN

TB10

WHT 2

TB9

POWER SUPPLY

N

3

MC1

1 BRN 452C2 4

RED

S

~/N

BRN

BRN

52C4

WHT

WHT

C1

R

220-240V

BLU 4 52C3 3 2

BLU

BLK

50Hz

BLU

1

BLU

CIRCUIT

F

BLU

TB8

C

BREAKER GRN/YLW

BLU

1

BLU

WHT

YLW 2

21R1 BLU

21RA

RED

MC2

TO INDOOR

2

BRN

X1

BLU

2

BLU

BLU

C2

S

R

ORN

2

BLU 2 1 BLU

BLK

UNIT No.A

1TB1 X1

4

3

1

52C1

CONNECTING

12VDC YLW 1

BLU BLU

TB6

BLU

X11

ORN

BLU

BLU

7

8

ORN 2BRN

1

1

BRN

21R2 BLU

TO INDOOR

2

X2 BLU

2

BLU

BLU

2

3

1

3

1

TB2

X2

ORN

52C2

BLU

TB5

2

1

X12

X11

UNIT No.B

1

4 3

1

2

1

CONNECTING

12VDC ORN 1

TB7

WHT

5

BLU

1

BLU

WHT

5

BLU

C11

2

WHT

BRN

21R3 BLU

2

7

GRY

1

RED

TO INDOOR

2

X3

3

X12 8

ORN

2

ORN

BLU

ORN

BLU

WHT

3

WHT

MF

UNIT No.C

1TB3 X3

1

52C3

YLW 4

BLK

CONNECTING

4 3

2

BLU

BLU

5

12VDCWHT 1

BLU

1

BLU

6

BRN

21R4 BLU

2

1 2 3

TO INDOOR

2

GRY 2

X4

3

BLU

BLU

UNIT No.D

TB4

BRN

BLU

ORN 52C4

BLU

21RB

CONNECTING

1

X4

4 3

1

2

12VDCGRY

1

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

C1

COMPRESSOR CAPACITOR(A,B)

TB

TERMINAL BLOCK

52C1

COMPRESSOR RELAY(A)

C2

COMPRESSOR CAPACITOR(C,D)

X11

FAN MOTOR RELAY(A,B)

52C2

COMPRESSOR RELAY(B)

C11

FAN MOTOR CAPACITOR

X12

FAN MOTOR RELAY(B,C)

52C3

COMPRESSOR RELAY(C)

MC1

COMPRESSOR(A,B)

21R1

SOLENOID COIL(A)

52C4

COMPRESSOR RELAY(D)

MC2

COMPRESSOR(C,D)

21R2

SOLENOID COIL(B)

X1

RELAY(A)

MF

FAN MOTOR(INNER THERMOSTAT)

21R3

SOLENOID COIL(C)

X2

RELAY(B)

F

FUSE(3.15A)

21R4

SOLENOID COIL(D)

X3

RELAY(C)

21RA

SOLENOID COIL

TB1~TB10 TERMINAL BLOCK

X4

RELAY(D)

21RB SOLENOID COIL

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

2.Symbols below indicate.

:Terminal block, : Connector

3.on the wiring diagram shows the terminals with a lock mechanism, so it 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.

Slide the sleeve.

Pull the wire while pushing the locking lever.

13

6 REFRIGERANT SYSTEM DIAGRAM

MSX-05NV- E1		MUX-10NV- E1 Unit : mm
	INDOOR UNIT		OUTDOOR UNIT

UNIT A

UNIT B

	Room	Refrigerant pipe
	temperature	9.52 (3/8)
	thermistor	(option)		Solenoid valve
	RT11	(With insulation)
				21R
	Indoor		Stop valve	Capillary tube
	heat		with service port	1.6 x 1,000
	exchanger
		Flared connection
		Refrigerant pipe	Solenoid valve
	Indoor coil	6.35 (1/4)		Compressor
			21R1
	thermistor	(option)
	RT12	(With insulation)

	Stop	Capillary tube		Outdoor
Room	valve	1.4 x 400	Capillary tube	heat
	Refrigerant pipe			exchanger
temperature
			1.4 x 200
thermistor	9.52 (3/8)
RT11	(option)
	(With insulation)

	Indoor		Stop valve
	heat
			with service port
	exchanger
		Flared connection
				Solenoid valve
				21R2
	Indoor coil
	thermistor		Stop	Capillary tube	Refrigerant flow
	RT12	Refrigerant pipe	valve	1.4 x 400
		6.35 (1/4)

(option)

(With insulation)

MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Indoor unit A

Indoor unit B

MSX-05NV

E1

MSX-05NV

E1

Max. length

difference

5m

Outdoor unit

MUX-10NV

E1

Additional piping max. length 10m

ADDITIONAL REFRIGERANT CHARGE (R-22:g)

MSX-10NV- E1

Outdoor unit

refrigerant piping length (one way,2unit total)

precharged

7m

8m

9m

10m

11m

12m

13m

14m

15m

A unit+ B unit

1150g

0

10

20

30

40

50

60

70

80

PIPING PREPARATION

1 Table below shows the specifications of pipes commercially available.

UNIT No.

Pipe

Outside diameter

Insulation

Insulation material

mm

inch

thickness

A and B UNIT

For liquid

6.35

1/4

6 mm

Heat resisting foam plastic

For gas

9.52

3/8

6 mm

0.045 specific gravity

2 Ensure that the 2 refrigerant pipes are well insulated to prevent condensation. 3 Refrigerant bending radius must be 10cm or more.

14

Unit : mm

MSX-09NV- E1

INDOOR UNIT

MUX-18NV- E1

OUTDOOR UNIT

UNIT A

MSX-09NV E1

UNIT B

MSX-09NV E1

UNIT C

MSX-09NV E1

	Room	Refrigerant pipe
	temperature	9.52<3/8>
	thermistor	(option)
		(With insulation)
	RT11
	Indoor		Stop valve
	heat		with service port
	exchanger
		Flared connection
	Indoor coil		Stop valve	Compressor(A)
	thermistor
	RT12
		Refrigerant pipe	Capillary tube
		6.35<1/4>	1.4 1000		Outdoor
	Room	(option)
					heat
	temperature	(With insulation)
		Refrigerant pipe			exchanger
	thermistor
		9.52<3/8>
	RT11			Solenoid valve
		(option)		21R
		(With insulation)
	Indoor		Stop valve	Capillary tube
	heat			1.6	1,000
			with
	exchanger
		Flared connection	service port
			Solenoid valve
			21R1
	Indoor coil			Compressor(B,C)
	thermistor	Refrigerant pipe	Capillary tube
	RT12
		6.35<1/4>	1.4 600
	Room
		(option)	Capillary tube		Stop valve
	temperature
		(With insulation)			with
				1.4 150
	thermistor
					service port
		Refrigerant pipe
	RT11
		9.52<3/8>

	Indoor
	heat
	exchanger	Flared connection		Refrigerant flow
			Solenoid valve
			21R1
	Indoor coil
	thermistor		Capillary tube
	RT12	Refrigerant pipe
			1.4	600
		6.35<1/4>

(option)

(With insulation)

15

MSX-09NV- E1

MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Indoor unit A		Indoor unit B		Indoor unit C
MSX-09NV - E1		MSX-09NV - E1		MSX-09NV - E1

LA

H

LB

H

LC

H

Outdoor unit

MUX-18NV - E1

		UNIT No.		Pipe length			Height difference (H)	No. of bends
	Max.	A	LA		10m		5m		10
		B	LB	10m	LB	Total	5m	10	Total
	limits
					+
			LC	10m		15m	5m	10	15
		C			LC

Note: The length of piping to individual units (A,B,C) should not exceed 10 meters.

If units B and C are linked, the maximum combined length of piping should not exceed 15 meters.

ADDITIONAL REFRIGERANT CHARGE (R-22:g)

Outdoor unit

Refrigerament piping length (one way)

A unit

precharged

7m

8m

9m

10m

750g

0

15

30

45

Outdoor unit

Refrigerament piping length (one way,2 unit total)

B

unit + C

unit

precharged

7m

8m

9m

10m

11m

12m

13m

14m

15m

750g

0

15

30

45

60

75

90

105

120

PIPING PREPARATION

1Table below shows the specifications of pipes commercially available.

	UNIT No.	Pipe	Outside diameter		Insulation	Insulation material
			mm	inch	thickness
	A , B and	For liquid	6.35	1/4	6mm	Heat resisting foam plastic
	C unit	For gas	9.52	3/8	6mm	0.045 specific gravity

2Ensure that the 2 refrigerant pipes are well insulated to prevent condensation. 3Refrigerant bending radius must be 10cm or more.

16

MSX-09NV- E1		MUX-24NV- E1 Unit : mm
MSX-12NV- E1
	INDOOR UNIT		OUTDOOR UNIT

UNIT A MSX-12NV- E1

UNIT B MSX-12NV- E1

UNIT C MSX-09NV- E1

UNIT D MSX-09NV- E1

Room	Refrigerant pipe
temperature	{12.7 (1/2)
thermistor	(option)		Solenoid valve
RT11	(With insulation)
			21RA
Indoor	Stop valve		Capillary tube
heat	with service port		{1.6 x 1,000
exchanger
	Flared connection
	Refrigerant pipe	Solenoid valve
Indoor coil	{6.35 (1/4)		Compressor
thermistor	(option)	21R1
	(With insulation)
RT12
	Stop	Capillary tube
Room	valve	{1.6 x 400	Capillary tube
	Refrigerant pipe
temperature
			{1.8 x 260
thermistor	{12.7 (1/2)
RT11	(option)
	(With insulation)

Indoor		Stop valve
heat
		with service port
exchanger
	Flared connection
			Solenoid valve
			21R2
Indoor coil
thermistor		Stop	Capillary tube
RT12	Refrigerant pipe	valve	{1.6 x 400
	{6.35 (1/4)
	(option)
	(With insulation)			Outdoor
				heat
Room	Refrigerant pipe			exchanger
temperature	{9.52 (3/8)
thermistor	(option)			Solenoid valve
RT11	(With insulation)
				21RB
Indoor		Stop valve		Capillary tube
heat		with service port		{1.6 x 1,000
exchanger
	Flared connection
	Refrigerant pipe		Solenoid valve
Indoor coil	{6.35 (1/4)			Compressor
thermistor	(option)		21R3
	(With insulation)
RT12

		Stop	Capillary tube
Room		valve	{1.6 x 650	Capillary tube
	Refrigerant pipe
temperature
				{1.6 x 400
thermistor	{9.52 (3/8)
RT11	(option)
	(With insulation)
Indoor		Stop valve
heat
		with service port
exchanger
	Flared connection
			Solenoid valve
			21R4
Indoor coil
thermistor		Stop	Capillary tube	Refrigerant flow
RT12	Refrigerant pipe	valve	{1.6 x 650
	{6.35 (1/4)

(option)

(With insulation)

17