Mitsubishi Electric MSZ-AY25VGKP-E6 Manuale utente

SERVICE MANUAL

INDOOR UNIT

PARTS CATALOG (OBB930)

CONTENTS

1. TECHNICAL CHANGES ······························3

2. PART NAMES AND FUNCTIONS··················4

3. SPECIFICATION ········································5

4. NOISE CRITERIA CURVES··························6

5. OUTLINES AND DIMENSIONS·····················7

6. WIRING DIAGRAM·····································8

7. REFRIGERANT SYSTEM DIAGRAM ···········10

8. SERVICE FUNCTIONS······························ 11

9. MICROPROCESSOR CONTROL·················17

10. TROUBLESHOOTING·······························25

11. DISASSEMBLY INSTRUCTIONS·················41

Models

MSZ-AY25VGK - E6 MSZ-AY25VGKP - E6

MSZ-AY35VGK - E6 MSZ-AY35VGKP - E6

MSZ-AY42VGK - E6 MSZ-AY42VGKP - E6

MSZ-AY50VGK - E6 MSZ-AY50VGKP - E6

Outdoor unit service manual

MUZ-AY∙VG/VGH Series (OBH931)

MXZ-F∙VF/VFH Series (OBH790)

No. OBH930

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.

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 pull 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.

WARNING

• When the refrigeration circuit has a leak, do not execute pump down with the compressor.

• When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.

The compressor may burst if air etc. get into it.

• When opening or closing the valve below freezing temperatures, refrigerant may spurt out from the gap

between the valve stem and the valve body, resulting in injuries.

OBH930

TECHNICAL CHANGES1

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

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

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

example because of relocation. In that case, the MUZ-AY·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.

MSZ-AY25VGK

- E6

MSZ-AY35VGK

- E6

MSZ-AY42VGK

- E6

MSZ-AY50VGK

- E6

MSZ-AY25VGKP

- E6

MSZ-AY35VGKP

- E6

MSZ-AY42VGKP

- E6

MSZ-AY50VGKP

- E6

1. New model

OBH930

PART NAMES AND FUNCTIONS2

ACCESSORIES

MSZ-AY25VGK MSZ-AY35VGK MSZ-AY42VGK MSZ-AY50VGK

MSZ-AY25VGKP MSZ-AY35VGKP MSZ-AY42VGKP MSZ-AY50VGKP

Model MSZ-AY25VGK MSZ-AY35VGK MSZ-AY42VGK MSZ-AY50VGK

MSZ-AY25VGKP MSZ-AY35VGKP MSZ-AY42VGKP MSZ-AY50VGKP

(1) Installation plate 1

(2) Installation plate xing screw 4 × 25 mm 5

(3) Wireless remote controller 1

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

(5) Battery (AAA) for remote controller 2

(6) Air cleaning lter 2 (VGK only)

The manufacturing year and

month

are indicated on the

spec name plate.

Emergency operation switch

Operation indicator lamp

Air purifying lamp (VGKP type only)

Remote control receiving

section

Horizontal vane

Air ﬁlter

Front panel

Spec name plate *1

Heat exchanger

Fan guard

Air outlet

Air cleaning ﬁlter

(V Blocking Filter)

Air purifying device

(VGKP type only)

Wi-Fi interface

Air inlet

Remote controller

OBH930

SPECIFICATION3

Specifications and rated conditions of main electric parts

Fuse (F11) T3.15AL250V

Horizontal vane motor (MV1, MV2) 12 V DC

Vertical Vane motor (MV3) 12 V DC

Varistor (NR11) 470 V

Terminal block (TB) 3P

Indoor model MSZ-AY25VGK

MSZ-AY25VGKP MSZ-AY35VGK

MSZ-AY35VGKP MSZ-AY42VGK

MSZ-AY42VGKP MSZ-AY50VGK

MSZ-AY50VGKP

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 RC0J30CV

Current *1 Cooling A0.18 0.24

Heating 0.26 0.32

Dimensions W × H × D mm 798 × 299 × 245

Weight kg VGK: 10.5

VGKP: 11

Special remarks

Air direction 5

Airow

Cooling

Super High

m3/h

630 666 630 702

High 468 504 546

Med. 378 420 450

Low 300 342 384

Silent 216 270 312

Heating

Super High

m3/h

708 774

High 480 516 546

Med. 396 420 438

Low 300 318 342

Silent 240 264 288

Sound level

Cooling

Super High

dB(A)

42 44

High 36 38 40

Med. 30 34 36

Low 24 29 33

Silent 18 21 28

Heating

Super High

dB(A)

45 48

High 39 38 40 43

Med. 34 31 35 38

Low 24 29 33

Silent 18 21 28

Fan speed

Cooling

Super High

rpm

940 980 940 1,020

High 760 800 850

Med. 650 700 740

Low 560 610 660

Silent 450 520 570

Heating

Super High

rpm

1,030 1,100

High 770 810 850

Med. 670 700 720

Low 560 580 610

Silent 480 510 540

Fan speed regulator 5

Remote controller model VGK: SH22Q

VGKP: SH22R

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 Wet-bulb temperature 15°C

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

*1 Measured under rated operating frequency.

OBH930

NOISE CRITERIA CURVES4

MSZ-AY25VGK

MSZ-AY25VGKP

BAND CENTER FREQUENCIES, Hz

63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

FAN SPEED FUNCTION SPL(dB(A)) LINE

Super High COOLING

HEATING

MSZ-AY35VGK

MSZ-AY35VGKP

BAND CENTER FREQUENCIES, Hz

63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

FAN SPEED FUNCTION SPL(dB(A)) LINE

Super High COOLING

HEATING

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-AY42VGK

MSZ-AY42VGKP

BAND CENTER FREQUENCIES, Hz

63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

FAN SPEED FUNCTION SPL(dB(A)) LINE

Super High COOLING

HEATING

MSZ-AY50VGK

MSZ-AY50VGKP

BAND CENTER FREQUENCIES, Hz

63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

FAN SPEED FUNCTION SPL(dB(A)) LINE

Super High COOLING

HEATING

OBH930

OUTLINES AND DIMENSIONS5

MSZ-AY25VGK MSZ-AY35VGK MSZ-AY42VGK MSZ-AY50VGK

MSZ-AY25VGKP MSZ-AY35VGKP MSZ-AY42VGKP MSZ-AY50VGKP Unit: mm

Piping

ø37 O.D

ø6.35 - 0.39m (Flared connection ø6.35)

ø9.52 - 0.34m (Flared connection ø9.52)

Insulation ø29 Connected part ø16 O.D

Insulation

Liquid line

Gas line

Drain hose

OBH930

WIRING DIAGRAM6

MSZ-AY50VGK

MSZ-AY25VGK MSZ-AY35VGK MSZ-AY42VGK

OBH930

MSZ-AY50VGKP

MSZ-AY25VGKP MSZ-AY35VGKP MSZ-AY42VGKP

OBH930

REFRIGERANT SYSTEM DIAGRAM7

Indoor

heat

exchanger

Flared connection

Room temperature

thermistor

RT11

Flared connection

Refrigerant pipe ø9.52

(with heat insulator)

Refrigerant pipe ø6.35

(with heat insulator)

Indoor coil

thermistor

RT12 (main)

Indoor coil

thermistor

RT13 (sub)

Refrigerant flow in cooling

Refrigerant flow in heating

Unit: mm

Indoor

heat

exchanger

Flared connection

Room temperature

thermistor

RT11

Flared connection

Refrigerant pipe ø9.52

(with heat insulator)

Refrigerant pipe ø6.35

(with heat insulator)

Indoor coil

thermistor

RT12 (main)

Indoor coil

thermistor

RT13 (sub)

Refrigerant flow in cooling

Refrigerant flow in heating

MSZ-AY25VGK MSZ-AY35VGK

MSZ-AY25VGKP MSZ-AY35VGKP

MSZ-AY42VGK MSZ-AY50VGK

MSZ-AY42VGKP MSZ-AY50VGKP

OBH930

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