Mitsubishi Electric MUZ-AP VG Series Manuale utente

SERVICE MANUAL

INDOOR UNIT

PARTS CATALOG (OBB788)

No. OBH788

REVISED EDITION-C

Outdoor unit service manual

MUZ-AP∙VG/VGH Series (OBH789)

MXZ-D∙VA/VAH Series (OBH626)

MXZ-E∙VA/VAH Series (OBH723)

MXZ-F∙VF/VFH Series (OBH790)

CONTENTS

1. TECHNICAL CHANGES ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 3

2. PART NAMES AND FUNCTIONS∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4

3. SPECIFICATION∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 6

4. NOISE CRITERIA CURVES ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 9

5. OUTLINES AND DIMENSIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙11

6. WIRING DIAGRAM∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 12

7. REFRIGERANT SYSTEM DIAGRAM ∙∙∙∙∙∙∙∙∙∙∙∙∙ 18

8. SERVICE FUNCTIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 19

9. MICROPROCESSOR CONTROL ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 21

10. TROUBLESHOOTING∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 29

11. DISASSEMBLY INSTRUCTIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 45

OBH788 REVISED EDITION-B is void.

MSZ-AP25VG

MSZ-AP35VG

MSZ-AP42VG

MSZ-AP50VG

MSZ-AP25VGK

MSZ-AP35VGK

MSZ-AP42VGK

MSZ-AP50VGK

Revision C:

• MSZ-AP25/35/42VG- E2 , EN2 , ET2 ,

MSZ-AP25/35/42VGK- E2 , EN2 , ET2 ,

MSZ-AP50VG- ER1 , E2 , EN2 , ET2 ,

MSZ-AP50VGK- ER1 , E2 , EN2 , ET2 ,

MSZ-AP60/71VG- ER1 , E2 , ET2 ,

MSZ-AP60/71VGK- ER1 , E2 , ET2 ,

have been added.

Models

MSZ-AP25VG -E1

EN1

ET1

ER1

EN2

ET2 MSZ-AP25VGK -E1

EN1

ET1

ER1

EN2

ET2

MSZ-AP35VG -E1

EN1

ET1

ER1

EN2

ET2 MSZ-AP35VGK -E1

EN1

ET1

ER1

EN2

ET2

MSZ-AP42VG -E1

EN1

ET1

ER1

EN2

ET2 MSZ-AP42VGK -E1

EN1

ET1

ER1

EN2

ET2

MSZ-AP50VG -E1

EN1

ET1

ER1

EN2

ET2 MSZ-AP50VGK -E1

EN1

ET1

ER1

EN2

ET2

MSZ-AP60VG -E1

ET1

ER1

ET2 MSZ-AP60VGK -E1

ET1

ER1

ET2

MSZ-AP71VG -E1

ET1

ER1

ET2 MSZ-AP71VGK -E1

ET1

ER1

ET2

Prepare the proper tools.

Prepare the proper protectors.

Provide adequate ventilation.

After stopping the operation of the air conditioner, turn off the power-supply breaker and remove the power plug.

Discharge the capacitor before the work involving the electric parts.

Do not perform the work involving the electric parts with wet hands.

Do not pour water into the electric parts.

Do not touch the refrigerant.

Do not touch the hot or cold areas in the refrigeration cycle.

When the repair or the inspection of the circuit needs to be done without turning off the power, exercise great caution not to

touch the live parts.

Use the specied 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:

• MSZ-AP25/35/42/50VG- ET1 and MSZ-AP25/35/42/50VGK- ET1 have been added.

Revision B:

• MSZ-AP25/35/42VG- ER1 , MSZ-AP25/35/42VGK- ER1 , MSZ-AP60/71VG- E1 , ET1 and MSZ-AP60/71VGK- E1 , ET1 have

been added.

Revision C:

• MSZ-AP25/35/42VG- E2 , EN2 , ET2 , MSZ-AP25/35/42VGK- E2 , EN2 , ET2 , MSZ-AP50VG- ER1 , E2 , EN2 , ET2 , MSZ-

AP50VGK- ER1 , E2 , EN2 , ET2 , MSZ-AP60/71VG- ER1 , E2 , ET2 , MSZ-AP60/71VGK- ER1 , E2 , ET2 , have been added.

OBH788C

MSZ-AP25VG - E1 , EN1 , ET1 , ER1

MSZ-AP35VG - E1 , EN1 , ET1 , ER1

MSZ-AP42VG - E1 , EN1 , ET1 , ER1

MSZ-AP50VG - E1 , EN1 , ET1 , ER1

MSZ-AP25VGK - E1 , EN1 , ET1 , ER1

MSZ-AP35VGK - E1 , EN1 , ET1 , ER1

MSZ-AP42VGK - E1 , EN1 , ET1 , ER1

MSZ-AP50VGK - E1 , EN1 , ET1 , ER1

MSZ-AP60VG - E1 , ET1 , ER1

MSZ-AP71VG - E1 , ET1 , ER1

MSZ-AP60VGK - E1 , ET1 , ER1

MSZ-AP71VGK - E1 , ET1 , ER1

1. New model

MSZ-AP25VG - E1 , EN1 , ET1 E2 , EN2 , ET2

MSZ-AP35VG - E1 , EN1 , ET1 E2 , EN2 , ET2

MSZ-AP42VG - E1 , EN1 , ET1 E2 , EN2 , ET2

MSZ-AP50VG - E1 , EN1 , ET1 E2 , EN2 , ET2

MSZ-AP25VGK - E1 , EN1 , ET1 E2 , EN2 , ET2

MSZ-AP35VGK - E1 , EN1 , ET1 E2 , EN2 , ET2

MSZ-AP42VGK - E1 , EN1 , ET1 E2 , EN2 , ET2

MSZ-AP50VGK - E1 , EN1 , ET1 E2 , EN2 , ET2

MSZ-AP60VG - E1 , ET1 E2 , ET2

MSZ-AP71VG - E1 , ET1 E2 , ET2

MSZ-AP60VGK - E1 , ET1 E2 , ET2

MSZ-AP71VGK - E1 , ET1 E2 , ET2

1. Remote controller has been changed.

TECHNICAL CHANGES

These models are compatible with the outdoor units with low standby power control.

Connecting these models to the MUZ-AP∙VG/VGH series outdoor units enables the low standby power control.

These models may be connected to the MUZ-AP∙VG/VGH series after once connected to the MXZ series and operated, for

example because of relocation. In that case, the MUZ-AP∙VG/VGH series outdoor units will not operate without taking a step.

Follow the procedure "Deleting the memorized abnormal condition" described in 10-2.1.

OBH788C

ACCESSORIES

MSZ-AP25VG MSZ-AP35VG MSZ-AP42VG MSZ-AP50VG

MSZ-AP25VGK MSZ-AP35VGK MSZ-AP42VGK MSZ-AP50VGK

Model MSZ-AP25VG MSZ-AP35VG MSZ-AP42VG MSZ-AP50VG

MSZ-AP25VGK MSZ-AP35VGK MSZ-AP42VGK MSZ-AP50VGK

Installation plate 1

Installation plate xing screw 4 × 25 mm 5

Wireless remote controller 1

Felt tape (For left or left-rear piping) 1

Battery (AAA) for remote controller 2

Operation indicator lamp

Remote control receiving

section

Heat exchanger

Air inlet

Front panel

Air outlet

Spec name plate

Air ﬁlter

Air cleaning ﬁlter

(Silver-ionized air

puriﬁer ﬁlter, option)

Horizontal vane Emergency

operation switch

Wi-Fi interface

MSZ-AP·VGK

Remote controller

PART NAMES AND FUNCTIONS

OBH788C

Remote controller

ACCESSORIES

MSZ-AP60VG MSZ-AP71VG

MSZ-AP60VGK MSZ-AP71VGK

Model MSZ-AP60VG MSZ-AP71VG

MSZ-AP60VGK MSZ-AP71VGK

Installation plate 1

Installation plate xing screw 4 × 25 mm 7

Wireless remote controller 1

Felt tape (For left or left-rear piping) 1

Battery (AAA) for remote controller 2

Operation indicator lamp

Remote control receiving

section

Emergency operation

switch

Horizontal vane

Air inlet

Front panel

Air outlet

Wi-Fi interface

MSZ-AP·VGK

Heat exchanger

Air cleaning ﬁlter

(Silver-ionized air

puriﬁer ﬁlter, option)

Spec name plate

Air ﬁlter

OBH788C

Specifications and rated conditions of main electric parts

Fuse (F11) T3.15AL250V

Horizontal vane motor (MV1, MV2) 12 V DC

Vertical vane motor (MV3)

Varistor (NR11) 470 V

Terminal block (TB) 3P

Indoor model MSZ-AP25VG

MSZ-AP25VGK

MSZ-AP35VG

MSZ-AP35VGK

MSZ-AP42VG

MSZ-AP42VGK

MSZ-AP50VG

MSZ-AP50VGK

Power supply Single phase 230 V, 50 Hz

Electrical

data

Power

input 1

Cooling W19 24

Heating 26 32

Running

current 1

Cooling A0.18 0.24

Heating 0.26 0.32

Fan

motor

Model RC0J30-CV

Current 1Cooling A0.18 0.24

Heating 0.26 0.32

Dimensions W × H × D mm 798 × 299 × 219

Weight kg 10.5

Special remarks

Air direction 5

Airow

Cooling

Super High

m3/h

684 756

High 522 558 600

Med. 426 462 504

Low 354 390 432

Silent 294 324 360

Heating

Super High

m3/h

774 840

High 534 564 600

Med. 438 462 492

Low 354 366 390

Silent 294 318 336

Sound level

Cooling

Super High

dB(A)

42 44

High 36 38 40

Med. 30 34 36

Low 24 29 33

Silent 19 21 28

Heating

Super High

dB(A)

45 48

High 39 38 40 43

Med. 34 31 35 38

Low 24 29 33

Silent 19 21 28

Fan speed

Cooling

Super High

rpm

970 1,050

High 790 830 880

Med. 670 720 770

Low 580 630 680

Silent 500 540 590

Heating

Super High

rpm

1,070 1,140

High 800 840 880

Med. 690 720 750

Low 580 600 630

Silent 500 530 560

Fan speed regulator 5

Remote controller

model

E1 ,EN1 ,ET1 ,ER1 SG17B

E2 , EN2 , ET2 SH20A

NOTE: Test conditions are based on ISO 5151.

Cooling: Indoor Dry-bulb temperature 27°C Wet-bulb temperature 19°C

Outdoor Dry-bulb temperature 35°C Wet-bulb temperature 24°C

Heating: Indoor Dry-bulb temperature 20°C

Outdoor Dry-bulb temperature 7°C Wet-bulb temperature 6°C

1 Measured under rated operating frequency.

SPECIFICATION

OBH788C

Indoor model MSZ-AP60VG

MSZ-AP60VGK

MSZ-AP71VG

MSZ-AP71VGK

Power supply Single phase 230 V, 50 Hz

Electrical

data

Power input

Cooling W41 42

Heating 49 45

Running

current 1

Cooling A0.37 0.38

Heating 0.43 0.40

Fan

motor

Model RC0J56-AH

Current 1Cooling A0.37 0.38

Heating 0.43 0.40

Dimensions W × H × D mm 1100 × 325 × 257

Weight kg 16 17

Special remarks

Air direction 5

Airow

Cooling

Super High

m3/h

1,134 1,116

High 960 918

Med. 792

Low 660 690

Quiet 564 576

Heating

Super High

m3/h

1,218 1,152

High 1,044 918

Med. 924 792

Low 804 690

Quiet 648 612

Sound level

Cooling

Super High

dB(A)

48 49

High 45

Med. 41

Low 37

Quiet 29 30

Heating

Super High

dB(A)

48 51

High 45

Med. 41

Low 37

Quiet 30

Fan speed

Cooling

Super High

rpm

1,100 1,140

High 960 970

Med. 820 860

Low 710 770

Quiet 630 670

Heating

Super High

rpm

1,170

High 1,030 970

Med. 930 860

Low 830 770

Quiet 700

Fan speed regulator 5

Remote controller model SG18D

NOTE: Test conditions are based on ISO 5151.

Cooling: Indoor Dry-bulb temperature 27°C Wet-bulb temperature 19°C

Outdoor Dry-bulb temperature 35°C Wet-bulb temperature 24°C

Heating: Indoor Dry-bulb temperature 20°C

Outdoor Dry-bulb temperature 7°C Wet-bulb temperature 6°C

1 Measured under rated operating frequency.

OBH788C

Specifications and rated conditions of main electric parts

Fuse (F11) T3.15AL250V

Horizontal vane motor (MV1) 12 VDC

Vertical vane motor (MV2) 12 VDC

Varistor (NR11) 470 V

Terminal block (TB) 3P

OBH788C

MSZ-AP25VG

MSZ-AP25VGK

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

NC-10

MSZ-AP35VG

MSZ-AP35VGK

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

NC-10

NOISE CRITERIA CURVES

Test conditions

Cooling: Dry-bulb temperature 27°C

Wet-bulb temperature 19°C

Heating: Dry-bulb temperature 20°C

INDOOR UNIT

WALL

MICROPHONE

0.8m

MSZ-AP42VG

MSZ-AP42VGK

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

NC-10

MSZ-AP50VG

MSZ-AP50VGK

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

NC-10

OBH788C

MSZ-AP71VG

MSZ-AP71VGK

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

BAND CENTER FREQUENCIES, Hz

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

NC-10

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

BAND CENTER FREQUENCIES, Hz

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

NC-10

MSZ-AP60VG

MSZ-AP60VGK

Test conditions

Cooling: Dry-bulb temperature 27°C

Wet-bulb temperature 19°C

Heating: Dry-bulb temperature 20°C

INDOOR UNIT

WALL

MICROPHONE

0.8m

OBH788C

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