Mitsubishi Electric MXZ-3C30NA User manual

HFC

utilized

R410A

PARTS CATALOG (OBB702)

INDOOR UNIT

SERVICE MANUAL

OUTDOOR UNIT

Models

MXZ-3C24NA MXZ-3C24NA2 -U1

MXZ-3C30NA MXZ-3C30NA2 -U1

MXZ-4C36NA MXZ-4C36NA2 -U1

MXZ-5C42NA MXZ-5C42NA2 -U1

MXZ-2C20NAHZ MXZ-2C20NAHZ2 -U1

MXZ-3C24NAHZ MXZ-3C24NAHZ2 -U1

MXZ-3C30NAHZ MXZ-3C30NAHZ2 -U1

No. OBH702

REVISED EDITION-E

OBH702 REVISED EDITION-D is void.

Revision E:

• Capacity and input curve have been corrected.

Indoor unit service manual

MSZ-FE·NA Series (OBH542)

MSZ-GE·NA Series (OBH548)

MFZ-KA·NA Series (OBH568)

SEZ-KD·NA Series

PLA-A·BA Series (OCH420)

PCA-A·KA Series (OCH455)

PEAD-A·AA Series

SLZ-KA·NA Series (OCH487)

MSZ-FH·NA Series (OBH683)

MVZ-A·AA Series

MSZ-GL·NA Series (OBH732)

MSZ-EF·NA Series (OBH736)

MFZ-KJ·NA Series (OBH752)

MXZ-3C24NA MXZ-3C24NA2

MXZ-3C30NA MXZ-3C30NA2

MXZ-4C36NA MXZ-4C36NA2

CONTENTS

1. TECHNICAL CHANGES ··································· 5

2. PART NAMES AND FUNCTIONS····················· 6

3. SPECIFICATION················································ 7

4. NOISE CRITERIA CURVES···························· 14

5. OUTLINES AND DIMENSIONS ······················ 16

6. WIRING DIAGRAM·········································· 21

7. REFRIGERANT SYSTEM DIAGRAM············· 31

8. DATA································································ 42

9. ACTUATOR CONTROL··································· 65

10. SERVICE FUNCTIONS···································· 66

11. TROUBLESHOOTING····································· 68

12. DISASSEMBLY INSTRUCTIONS···················· 89

Use the speciﬁed refrigerant only

Never use any refrigerant other than that specified.

Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.

Correct refrigerant is specified in the manuals and on the spec labels provided with our products.

We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by

failure to follow the instructions.

Revision A:

• MXZ-3C24NA, MXZ-3C30NA and MXZ-4C36NA have been added.

Revision B:

• MXZ-3C24/3C30/4C36/5C42NA2 and MXZ-2C20/3C24/3C30NAHZ2-U1 have been added.

Revision C:

• 3. SPECIFICATION has been changed.

• Some descriptions have been modified.

Revision D:

• Connectable indoor unit lineups have been modified.

• WIRING DIAGRAM (6.) and TEST POINT DIAGRAM AND VOLTAGE (11-7.) have been changed.

Revision E:

• Capacity and input curve have been corrected.

OBH702E

MXZ-5C42NA MXZ-5C42NA2-U1

06 09 12 15 18 24 30 36 06 09 12 15 18 24 30 36

MSZ-FE**NA

ƔƔ

MSZ-FE**NA

ƔƔ

MSZ-FH**NA

ƔƔƔƔ

MSZ-FH**NA

ƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔ Ɣ

MSZ-GL**NA

ƔƔƔƔƔƔ

MSZ-EF**NA MSZ-EF**NA

ƔƔƔƔ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KJ**NA MFZ-KJ**NA

ƔƔƔƔ

SLZ-KA**NA

ƔƔƔ

SLZ-KA**NA

ƔƔƔ

PLA-A**BA

ƔƔ

PLA-A**BA

ƔƔ

SEZ-KD**NA

ƔƔƔƔ

SEZ-KD**NA

ƔƔƔƔ

PEAD-A**AA

Ceiling suspended PCA-A**KA

Multi-position MVZ-A**AA4

ƔƔƔ

Multi-position MVZ-A**AA4

ƔƔƔ

MXZ-4C36NA MXZ-4C36NA2-U1

06 09 12 15 18 24 30 36 06 09 12 15 18 24 30 36

MSZ-FE**NA

ƔƔ

MSZ-FE**NA

ƔƔ

MSZ-FH**NA

ƔƔƔƔ

MSZ-FH**NA

ƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔƔƔ

MSZ-EF**NA MSZ-EF**NA

ƔƔƔƔ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KJ**NA MFZ-KJ**NA

ƔƔƔƔ

SLZ-KA**NA

ƔƔƔ

SLZ-KA**NA

ƔƔƔ

PLA-A**BA

ƔƔ

PLA-A**BA

ƔƔ

SEZ-KD**NA

ƔƔƔƔ

SEZ-KD**NA

ƔƔƔƔ

PEAD-A**AA

Ceiling suspended PCA-A**KA

Multi-position MVZ-A**AA4

ƔƔƔ

Multi-position MVZ-A**AA4

ƔƔƔ

MXZ-3C30NA MXZ-3C30NA2-U1

06 09 12 15 18 24 30 36 06 09 12 15 18 24 30 36

MSZ-FE**NA

ƔƔ

MSZ-FE**NA

ƔƔ

MSZ-FH**NA

ƔƔƔƔ

MSZ-FH**NA

ƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔƔƔ

MSZ-EF**NA MSZ-EF**NA

ƔƔƔƔ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KJ**NA MFZ-KJ**NA

ƔƔƔƔ

SLZ-KA**NA

ƔƔƔ

SLZ-KA**NA

ƔƔƔ

PLA-A**BA

ƔƔ

PLA-A**BA

ƔƔ

SEZ-KD**NA

ƔƔƔƔ

SEZ-KD**NA

ƔƔƔƔ

PEAD-A**AA

Ceiling suspended PCA-A**KA

Multi-position MVZ-A**AA4

ƔƔƔ

Multi-position MVZ-A**AA4

ƔƔƔ

Ceiling concealed Ceiling concealed

Wall mounted Wall mounted

Floor standing Floor standing

4-way cassette 4-way cassette

Model type Model name Capacity class [kBTU/h] Model type Model name Capacity class [kBTU/h]

4-way cassette 4-way cassette

Ceiling concealed Ceiling concealed

Connectable indoor unit lineups (Heat pump inverter type) Connectable indoor unit lineups (Heat pump inverter type)

Model type Model name Capacity class [kBTU/h] Model type Model name Capacity class [kBTU/h]

Wall mounted Wall mounted

Floor standing Floor standing

Ceiling concealed

Connectable indoor unit lineups (Heat pump inverter type) Connectable indoor unit lineups (Heat pump inverter type)

Model type Model name Capacity class [kBTU/h]

Wall mounted

Floor standing

4-way cassette

Ceiling concealed

Wall mounted

Model type Model name Capacity class [kBTU/h]

Floor standing

4-way cassette

MXZ-3C30NAHZ MXZ-3C30NAHZ2-U1

06 09 12 15 18 24 30 36 06 09 12 15 18 24 30 36

MSZ-FE**NA

ƔƔ

MSZ-FE**NA

ƔƔ

MSZ-FH**NA

ƔƔƔƔ

MSZ-FH**NA

ƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔ Ɣ

MSZ-GL**NA

ƔƔƔƔƔƔ

MSZ-EF**NA MSZ-EF**NA

ƔƔƔƔ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KJ**NA MFZ-KJ**NA

ƔƔƔƔ

SLZ-KA**NA

ƔƔƔ

SLZ-KA**NA

ƔƔƔ

PLA-A**BA

ƔƔ

PLA-A**BA

ƔƔ

SEZ-KD**NA

ƔƔƔƔ

SEZ-KD**NA

ƔƔƔƔ

PEAD-A**AA

Ceiling suspended PCA-A**KA

Multi-position MVZ-A**AA4

ƔƔƔ

Multi-position MVZ-A**AA4

ƔƔƔ

Ceiling concealed Ceiling concealed

Wall mounted Wall mounted

Floor standing Floor standing

4-way cassette 4-way cassette

Connectable indoor unit lineups (Heat pump inverter type) Connectable indoor unit lineups (Heat pump inverter type)

Model type Model name Capacity class [kBTU/h] Model type Model name Capacity class [kBTU/h]

OBH702E

MXZ-3C24NA MXZ-3C24NA2-U1

06 09 12 15 18 24 30 36 06 09 12 15 18 24 30 36

MSZ-FE**NA

ƔƔ

MSZ-FE**NA

ƔƔ

MSZ-FH**NA

ƔƔƔƔ

MSZ-FH**NA

ƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔƔ

MSZ-EF**NA MSZ-EF**NA

ƔƔƔƔ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KJ**NA MFZ-KJ**NA

ƔƔƔƔ

SLZ-KA**NA

ƔƔƔ

SLZ-KA**NA

ƔƔƔ

PLA-A**BA

SEZ-KD**NA

ƔƔƔƔ

SEZ-KD**NA

ƔƔƔƔ

PEAD-A**AA PEAD-A**AA

Ceiling suspended PCA-A**KA Ceiling suspended PCA-A**KA

Multi-position MVZ-A**AA4

ƔƔ

Multi-position MVZ-A**AA4

ƔƔ

MXZ-3C24NAHZ MXZ-3C24NAHZ2-U1

06 09 12 15 18 24 30 36 06 09 12 15 18 24 30 36

MSZ-FE**NA

ƔƔ

MSZ-FE**NA

ƔƔ

MSZ-FH**NA

ƔƔƔƔ

MSZ-FH**NA

ƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔƔ

MSZ-EF**NA MSZ-EF**NA

ƔƔƔƔ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KA**NA

ƔƔ Ɣ

MFZ-KJ**NA MFZ-KJ**NA

ƔƔƔƔ

SLZ-KA**NA

ƔƔƔ

SLZ-KA**NA

ƔƔƔ

PLA-A**BA

SEZ-KD**NA

ƔƔƔƔ

SEZ-KD**NA

ƔƔƔƔ

PEAD-A**AA PEAD-A**AA

Ceiling suspended PCA-A**KA Ceiling suspended PCA-A**KA

Multi-position MVZ-A**AA4

ƔƔ

Multi-position MVZ-A**AA4

ƔƔ

MXZ-2C20NAHZ MXZ-2C20NAHZ2-U1

06 09 12 15 18 24 30 36 06 09 12 15 18 24 30 36

MSZ-FE**NA

ƔƔ

MSZ-FE**NA

ƔƔ

MSZ-FH**NA

ƔƔƔ

MSZ-FH**NA

ƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔ

MSZ-GE**NA

ƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔ

MSZ-GL**NA

ƔƔƔƔ

MSZ-EF**NA MSZ-EF**NA

ƔƔƔ

MFZ-KA**NA

ƔƔ

MFZ-KA**NA

ƔƔ

MFZ-KJ**NA MFZ-KJ**NA

ƔƔƔ

SLZ-KA**NA

ƔƔ

SLZ-KA**NA

ƔƔ

PLA-A**BA PLA-A**BA

SEZ-KD**NA

ƔƔƔ

SEZ-KD**NA

ƔƔƔ

PEAD-A**AA PEAD-A**AA

Ceiling suspended PCA-A**KA Ceiling suspended PCA-A**KA

Multi-position MVZ-A**AA4

Ceiling concealed Ceiling concealed

Wall mounted Wall mounted

Floor standing Floor standing

4-way cassette 4-way cassette

Ceiling concealed Ceiling concealed

Connectable indoor unit lineups (Heat pump inverter type) Connectable indoor unit lineups (Heat pump inverter type)

Model type Model name Capacity class [kBTU/h] Model type Model name Capacity class [kBTU/h]

Wall mounted Wall mounted

Floor standing Floor standing

4-way cassette 4-way cassette

Ceiling concealed Ceiling concealed

Connectable indoor unit lineups (Heat pump inverter type) Connectable indoor unit lineups (Heat pump inverter type)

Model type Model name Capacity class [kBTU/h] Model type Model name Capacity class [kBTU/h]

Wall mounted Wall mounted

Floor standing Floor standing

4-way cassette 4-way cassette

Connectable indoor unit lineups (Heat pump inverter type) Connectable indoor unit lineups (Heat pump inverter type)

Model type Model name Capacity class [kBTU/h] Model type Model name Capacity class [kBTU/h]

OBH702E

TECHNICAL CHANGES

MXZ-5C42NA

MXZ-2C20NAHZ

MXZ-3C24NAHZ

MXZ-3C30NAHZ

1. New model

MXZ-3C24NA

MXZ-3C30NA

MXZ-4C36NA

1. New model

MXZ-3C24NA MXZ-3C24NA2 - U1

MXZ-3C30NA MXZ-3C30NA2 - U1

MXZ-4C36NA MXZ-4C36NA2 - U1

MXZ-5C42NA MXZ-5C42NA2 - U1

MXZ-2C20NAHZ MXZ-2C20NAHZ2 - U1

MXZ-3C24NAHZ MXZ-3C24NAHZ2 - U1

MXZ-3C30NAHZ MXZ-3C30NAHZ2 - U1

1. Outdoor control P.C. board has been changed.

OBH702E

PART NAMES AND FUNCTIONS

MXZ-5C42NA MXZ-5C42NA2

MXZ-2C20NAHZ MXZ-2C20NAHZ2

MXZ-3C24NAHZ MXZ-3C24NAHZ2

MXZ-3C30NAHZ MXZ-3C30NAHZ2

MXZ-3C24NA MXZ-3C24NA2

MXZ-3C30NA MXZ-3C30NA2

MXZ-4C36NA MXZ-4C36NA2

Air outlet

Drain outlet

Air inlet

(Back and side)

Air outlet

Drain outlet

Air inlet

(Back and side)

OBH702E

NOTE: Test conditions are based on ARI 210/240.

SPECIFICATION

Item Outdoor model MXZ-3C24NA MXZ-3C24NA2

Indoor type Non-Duct (06+09+09) Duct (09+09+09)

Capacity Cooling *1 Btu/h 22,000 23,600

Heating 47 *1 Btu/h 25,000 24,600

Heating 17 *2 Btu/h 19,600 19,600

Power

consumption

Cooling *1 W 1,620 2,100

Heating 47 *1 W 1,750 1,900

Heating 17 *2 W 2,580 2,440

EER Cooling 13.6 11.2

SEER Cooling 20.0 16.0

HSPF IV(V) Heating 9.8 (7.6) 9.2 (7.6)

COP Heating 4.20 3.80

External ﬁnish Munsell 3.0Y 7.8/1.1

Power supply V, phase, Hz 208/230, 1, 60

Max. fuse size (time delay) A 25

Min. circuit ampacity A 22.1

Fan motor F.L.A 2.43

Compressor

Model SNB220FQGMC

Winding resistance

(at 68 ºF) ΩU-V 0.95 V-W 0.95 W-U 0.95

R.L.A 12

L.R.A 13.7

Refrigerant control LEV

Sound level dB(A) 51/55

Defrost method Reverse cycle

Dimensions W in. 37-13/32

D in. 13

H in. 31-11/32

Weight lb. NA: 135/NA2: 137

Remote controller Wireless type

Control voltage (by built-in transformer) 12-24 VDC

Refrigerant piping Not supplied (optional parts)

Valve size Liquid in. 1/4

Gas in. A:1/2 B,C:3/8

Connection method

Indoor Flared

Outdoor Flared

Refrigerant charge (R410A) lb. 6lb. 13oz.

Refrigeration oil (Model) ﬂoz. (L) 23.7 (0.7) (FV50S)

Unit: °F

Mode Test Indoor air condition Outdoor air condition

Dry bulb Wet bulb Dry bulb Wet bulb

Cooling *1: "A" Cooling steady state at rated compressor speed 80 67 95 (75)

"B-2" Cooling steady state at rated compressor speed 80 67 82 (65)

"B-1" Cooling steady state at minimum compressor speed 80 67 82 (65)

Low ambient cooling steady state at minimum compressor speed 80 67 67 (53.5)

Intermediate cooling steady state at intermediate compressor speed 80 67 87 (69)

Heating *1: Standard rating-heating at rated compressor speed 70 60 47 43

*2: Low temperature heating at maximum compressor speed 70 60 17 15

Maximum temperature heating at minimum compressor speed 70 60 62 56.5

High temperature heating at minimum compressor speed 70 60 47 43

Frost accumulation at rated compressor speed 70 60 35 33

Frost accumulation at intermediate compressor speed 70 60 35 33

OBH702E

NOTE: Test conditions are based on ARI 210/240.

Item Outdoor model MXZ-3C30NA MXZ-3C30NA2

Indoor type Non-Duct (09+09+12) Duct (09+09+12)

Capacity Cooling *1 Btu/h 28,400 27,400

Heating 47 *1 Btu/h 28,600 27,600

Heating 17 *2 Btu/h 21,000 21,000

Power

consumption

Cooling *1 W 2,680 2,840

Heating 47 *1 W 2,150 2,220

Heating 17 *2 W 2,740 2,820

EER Cooling 10.6 9.6

SEER Cooling 19.0 16.2

HSPF IV(V) Heating 10.6 (8.0) 9.6 (8.0)

COP Heating 3.90 3.64

External ﬁnish Munsell 3.0Y 7.8/1.1

Power supply V, phase, Hz 208/230, 1, 60

Max. fuse size (time delay) A 25

Min. circuit ampacity A 22.1

Fan motor F.L.A 2.43

Compressor

Model SNB220FQGMC

Winding resistance

(at 68 ºF) ΩU-V 0.95 V-W 0.95 W-U 0.95

R.L.A 12

L.R.A 13.7

Refrigerant control LEV

Sound level dB(A) 52/56