Mitsubishi Electronics MXZ-4B36NA, MXZ-3B30NA, MXZ-3B24NA, MXZ-2B20NA User Manual

SPLIT-TYPE AIR CONDITIONERS

OUTDOOR UNIT

Revision C:

• MXZ-3B30NA has been added.
Please void OBB560

REVISED EDITION-B.

PARTS CATALOG

Models

MXZ-2B20NA, ­MXZ-3B24NA
MXZ-3B30NA
MXZ-4B36NA

1

CONTENTS

HFC

utilized

R410A

No. OBB560

REVISED EDITION-C

MXZ-2B20NA

NOTE:

• RoHS compliant products have <G> mark
on the spec name plate.

9700058

1. RoHS PARTS LIST ············································ 2

2. OPTIONAL PARTS ·········································· 10

SERVICE MANUAL (OBH560)

The Slim Line.
From Mitsubishi Electric.

TM

33223

Revision A:

• MXZ-2B20NA- 1 has been added.

Revision B:

• MXZ-3B24NA and MXZ-4B36NA have been added.

Revision C:

• MXZ-3B30NA has been added.

1

RoHS PARTS LIST (RoHS compliant)

MXZ-2B20NA
1-1. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS

21

22

1

20

19

18

17

16

15
14

2

11

3

10

4

5 12

678913

2

PARTS LIST (RoHS compliant)

MXZ-2B20NA
1-1. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS

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

Symbol

No.

1 G E12 D36 232 CABINET 1 1

2 G E12 817 009 HANDLE 1 1

3 G E12 939 521 GRILLE 1 1

4 G E12 D36 246 SUB PANEL 1 1

5 G E12 C15 900 COMPRESSOR MC 1 1 SNB130FQBH1

6 G E12 C34 506

7

8

9 G E12 939 290 BASE 1 1

10 G E12 D36 666 UNION(GAS) 2 2 3/8

11 G E12 D36 667 UNION(LIQUID) 2 2

12 G E12 939 233 BACK PANEL 1 1

13 G E12 D36 245 SERVICE PANEL 1 1

14 G E12 D36 662 STOP VALVE (LIQUID) 3/8 1 1 3/8

15 G E12 C88 661 STOP VALVE (GAS) 5/8 1 1 5/8

16 G E12 C88 299 OIL SEPARATOR 1 1

17 G E12 A56 961 4-WAY VALVE 1 1

18 G E12 819 297 TOP PANEL 1 1

19 G E12 939 523 REAR GUARD 1 1

20 G E12 B05 630

21 G E12 939 515 MOTOR SUPPORT 1 1

22 G E12 A49 641 SERVICE PORT 2 2

23 G E12 938 937 CAPILLARY TUBE 8 8

24 G E12 939 936 CAPILLARY TUBE 2 2

25 G E12 938 936 CAPILLARY TUBE 1 1

26 G E12 C18 959 POWER RECEIVER 1 1

27

Parts No. Parts Name

RoHS

COMPRESSOR RUBBER SET

G E12 851 640 EXPANSION VALVE 1 1 B room

G E12 939 493 LEV COIL LEV B 1 B room

G E12 F54 493 LEV COIL LEV B 1 B room

G E12 851 640 EXPANSION VALVE 1 1 A room

G E12 938 493 LEV COIL LEV A 1 A room

G E12 F15 493 LEV COIL LEV A 1 A room

OUTDOOR HEAT EXCHANGER

G E12 853 640 EXPANSION VALVE 1 1 E

G E12 819 493 LEV COIL LEV E 1 E

G E12 F15 493 LEV COIL LEV E 1 E

in Wiring

Diagram

2B20NA

Q'ty/unit

MXZ-

3 3 3 RUBBERS SET

11

MXZ-

2B20NA -

1

O.D.0.14 x I.D.0.09 x 19.68

O.D.0.16 x I.D.0.11 x 3.93

O.D.0.10 x I.D.0.02 x 39.37

Remakes

1/4

3

RoHS PARTS LIST (RoHS compliant)

MXZ-2B20NA
1-2. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS

11

10

9

8

1

2

435

4

6

7

PARTS LIST (RoHS compliant)

MXZ-2B20NA
1-2. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS

Symbol

No.

1 G E12 851 501 PROPELLER 1 1

2

3 G E12 C15 440 POWER BOARD 1 1

4

5 G E12 D38 444 NOISE FILTER P.C. BOARD 1 1

6 G E12 C92 375 TERMINAL BLOCK TB2~3 2 2 Indoor unit connecting

7 G E12 A53 374 TERMINAL BLOCK TB1 1 1 Power supply

8 G E12 B05 490 R.V. COIL 21S4 1 1

9 G E12 938 308 THERMISTOR SET

10 G E12 938 309

11 G E12 938 337 REACTOR L 1 1 20 A 600 μH

Parts No. Parts Name

RoHS

G E12 A58 301 OUTDOOR FAN MOTOR MF 1 RC0J60-

G E12 E34 301 OUTDOOR FAN MOTOR MF 1 RC0J77-

G E12 F15 450

G E12 F54 450

ELECTRONIC CONTROL P.C. BOARD

ELECTRONIC CONTROL P.C. BOARD

AMBIENT TEMPERATURE THERMISTOR

in Wiring

Diagram

RT61,62,68

RT65 1 1

2B20NA

Q'ty/unit

MXZ-

1

11

MXZ-

2B20NA -

1

1

Including heat sink and RT64

DEFROST, DISCHARGE
OUTDOOR HEAT EXCHANGER

Remakes

5

RoHS PARTS LIST (RoHS compliant)

MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA
1-3. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS

24

23

22

21

19

20

18

17
14

13

16

15

2

5

1
2

3

6

7

10

8

9

6

11

12

4

RoHS PARTS LIST (RoHS compliant)

MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA
1-3. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS

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

Symbol

No.

1 G M21 0A2 232 FRONT PANEL 1 1 1

2 G M21 0A2 027 HANDLE ASSEMBLY 2 2 2

3 G M21 L2V 010 GRILLE 1 1 1

4 G M21 0A2 245 SERVICE PANEL 1 1 1

5 G T92 505 801 COMPRESSOR MC 1 1 1 TNB220FMCH

6 G M21 L2V 505 COMPRESSOR RUBBER SET 3 3 3 3 RUBBERS SET

7

8

9

10

11 G M21 0A2 290 BASE ASSEMBLY 1 1 1

12 G M21 0A2 644 UNION 1 1 1 1/2,

13 G M21 0A2 668 STOP VALVE (LIQUID) 3/8 1 1 1 3/8

14 G M21 0A6 667 STOP VALVE (GAS) 5/8 1 1 1 5/8

15 G M21 0A2 248 REAR PANEL 1 1 1

16 G T2W L7V 642 4-WAY VALVE 1 1 1

17 G M21 L2V 646 HIGH PRESSURE SWITCH HPS 1 1 1 4.8 MPa (48.9 kg/cm

18

19 G M21 9T6 651 LEV COIL LEV F 1 1 1

20 G M21 L2V 297 TOP PANEL 1 1 1

21 G M21 0A2 523 REAR GUARD 1 1 1

22

23 G M21 L2V 249 SIDE PANEL 1 1 1

24 G T2W L7V 641 SERVICE PORT 2 2 2

25 G T2W L7V 959 POWER RECEIVER 1 1 1

26 G M21 0A2 937 CAPILLARY TUBE 2 2 2

27 G M21 0A2 936 CAPILLARY TUBE 3 3 4

28 G M21 L2V 938 CAPILLARY TUBE 1 1 1

29 G T2W L7V 656 OIL SEPARATOR 1 1 1

Parts No. Parts Name

RoHS

G M21 L2V 401 EXPANSION VALVE 1 D room

G M21 9T4 654 LEV COIL LEV D 1 D room

G M21 L2V 401 EXPANSION VALVE 1 1 1 C room

G M21 9T4 653 LEV COIL LEV C 1 1 1 C room

G M21 L2V 401 EXPANSION VALVE 1 1 1 B room

G M21 9T4 652 LEV COIL LEV B 1 1 1 B room

G M21 L2V 401 EXPANSION VALVE 1 1 1 A room

G M21 9T4 651 LEV COIL LEV A 1 1 1 A room

G M21 L2V 402 EXPANSION VALVE 1 1 F

G M21 0A2 402 EXPANSION VALVE 1 F

G M21 0A3 630 HEAT EXCHANGER 1 1

G T2W 0A2 630 HEAT EXCHANGER 1

in Wiring

Diagram

MXZ-

3B24NA

Q'ty/unit

MXZ-

3B30NA

MXZ-

4B36NA

Remakes

3/8, 1/4 SET

O.D.0.12 x I.D.0.08 x 11.8

O.D.0.16 x I.D.0.11 x 3.94

O.D.0.10 x I.D.0.02 x 39.37

2

)

7

RoHS PARTS LIST (RoHS compliant)

MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA
1-4. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS

11
10

9

8

7

124356

8

RoHS PARTS LIST (RoHS compliant)

MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA
1-4. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS

Symbol

No.

1 G M21 L2V 501 PROPELLER 1 1 1

2 G T2W 9T9 301 OUTDOOR FAN MOTOR MF 1 1 1 RC0J77-

3 G M21 0A1 440 POWER BOARD 1 1 1

4

5 G M21 9T7 337 REACTOR L 1 1 1 20 A 500 μH

6 G M21 0A0 424 NOISE FILTER P.C. BOARD 1 1 1

7 G T2W 0A2 376 TERMINAL BLOCK TB2~5 3 3 4 Indoor unit connecting

8 G T2W L7V 377 TERMINAL BLOCK TB1 1 1 1 Power supply

9 G T2W L7V 398 R.V. COIL 21S4 1 1 1

10 G M21 L2V 308 THERMISTOR SET

11 G M21 0A2 309

Parts No. Parts Name

RoHS

G T2W 9T9 451

G T2W 9T8 451

G T2W 9T7 451

ELECTRONIC CONTROL P.C. BOARD

ELECTRONIC CONTROL P.C. BOARD

ELECTRONIC CONTROL P.C. BOARD

AMBIENT TEMPERATURE THERMISTOR

in Wiring

Diagram

RT61,62,68

RT65 1 1 1

MXZ-

3B24NA

1

111

Q'ty/unit

MXZ-

3B30NA

1

MXZ-

4B36NA

1

Remakes

Including heat sink and RT64

DEFROST, DISCHARGE,
OUTDOOR HEAT EXCHANGER

9

2

OPTIONAL PARTS

2-1. DIFFERENT-DIAMETER PIPE

MXZ-2B20NA
MXZ-3B24NA
MXZ-3B30NA
MXZ-4B36NA

For different­diameter
pipes

Model name

MAC-A454JP

MAC-A455JP 2.56

MAC-A456JP

Connected pipes

DiameterADiameterBLength

diameter

1/2 — 3/8 3/8 1/2

1/2 — 5/8 5/8 1/2

Unit : inch

C

A

3/8 1/2 3/8 — 1/2

2.72

C

B

2.62

PAC-493PI 2.38

PAC-SG76RJ-E

2-2. OUTLET GUIDE

Changes air discharge direction.

Applied unit
MXZ-2B20NA
MXZ-3B24NA

MXZ-3B30NA
MXZ-4B36NA

Model name
MAC-889SG 506-889

MAC-856SG 51H-856

Model code

1/4 — 3/8 3/8 1/4

3/8 — 5/8 5/8 3/8

9/32"

3-1/8"12-7/8"

21-5/32"

4-1/16"

21-3/16"

20-5/8"

Z

Z

MAC-889SG

9/32"

4

17/32"

5/8"

17-3/4"

13/32 x 1-7/8"

1-11/16"

52.5°

1-7/8"

Unit : inch

Z-Z

2-13/16"

10

Air outlet grille

23 9/32

Support

MAC-856SG

3 5/32

22 23/32

11

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

© Copyright 2009 MITSUBISHI ELECTRIC CO.,LTD
Distributed in Mar. 2010. No. OBB560 REVISED EDITION-C 6
Distributed in Feb. 2010. No. OBB560 REVISED EDITION-B 6
Distributed in Dec. 2009. No. OBB560 REVISED EDITION-A 5
Distributed in Sep. 2009. No. OBB560 5
Made in Japan

New publication, effective Mar. 2010
Specifications subject to change without notice.