Mitsubishi Electric MUX-19TV - E1 Manuale utente

SERVICE MANUAL

SPLIT-TYPE,AIR CONDITIONERS

CONTENTS

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

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

3. INDOOR/OUTDOOR

CORRESPONDENCE TABLE ···························3

4. SPECIFICATION·················································3

5. NOISE CRITERIA CURVES······························ 6

6. OUTLINES AND DIMENSIONS ························ 7

7. WIRING DIAGRAM ············································9

8. REFRIGERANT SYSTEM DIAGRAM··············10

9. PERFORMANCE CURVES······························14

10. TROUBLESHOOTING······································26

11. DISASSEMBLY INSTRUCTIONS·····················32

12. PARTS LIST······················································35

13. OPTIONAL PARTS···········································37

Multi system type

Models

MUX-19TV -

MUX-20TV -

MUX-25TV - E1

No. OB284

MUX-19TV -

MUX-20TV -

MUX-25TV - E1

This manual describes technical data of outdoor unit.

For indoor unit refer to the service manuals No.OB227 REVISED EDITION-B and OB252 REVISED EDITION-A of corre-

sponding models.

OB284-1.qxp 01.4.26 8:58 PM Page 1

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TECHNICAL CHANGES

MUX-19TV -

MUX-20TV -

MUX-25TV -

New models

PART NAMES AND FUNCTIONS

OUTDOOR UNIT

MUX-19TV -

MUX-20TV -

MUX-25TV - E1

Air inlet

Piping

Drainage hose

Air outlet

(Back and side)

OB284-1.qxp 01.4.26 8:59 PM Page 2

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INDOOR / OUTDOOR CORRESPONDENCE TABLE

SPECIFICATION

❈There is no combination other than this table.

MUX-19TV-

MUX-20TV-

MUX-25TV-

Combination of the

connectable indoor units

OUTDOOR UNIT

A:07, B:12 A:09, B:09, C:09 A:12, B:12

Outdoor model

Capacity

Dehumidification

Outdoor air flow

Power outlet

Running current

Power input

Auxiliary heater

Power factor

Starting current

Compressor motor current

Fan motor current

Model

Output

Winding

resistance(at20:)

Model

Winding

resistance(at20:)

Dimensions WOHOD

Weight

Sound level

Fan speed

Fan speed regulator

Refrigerant filling

capacity(R22)

Refrigerating oil (Model)



R/h

K/h

A(kW)

"



"

rpm

Opetate 1 unit

3.5

1.6

6.01

1,280

92.6

5.68

0.33

2.65

Opetate 2 unit

A+B

3.5+2.2

1.6+0.8

8.94

2,005

97.5

8.37

0.57

2.74

MUX-19TV - E1

Single phase

230V, 50Hz

Opetate 1 unit

2.2

0.8

Hi:2,460 / Lo:1,920

3.33

745

—

97.3

45.6

3.00

0.33

2.82

RH220VHAT (Room A) / RH135VHAT (Room B)

1,050 / 650

C-R 2.13/4.18

C-S 3.91/5.76

RA6V60-DA

WHT-BLK 90 BKL-YLW 54

BLK-RED 146

840✕640✕330

High:730 / Low:580

Room A : 0.87

Room B :1.0

520(MS56) / 300(MS56)

Compressor

Electrical

data

Fan

motor

Special

remarks

Capacity

Coefficient of performance(C.O.P)

Outdoor unit power supply

Indoor unit No.

NOTE: Test conditions are based on ISO 5151.

Cooling : Indoor DB27°C / WB19°C

Outdoor DB35°C / WB(24°C)

OB284-1.qxp 01.4.26 8:59 PM Page 3

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Outdoor model

Capacity

Dehumidification

Outdoor air flow

Power outlet

Running current

Power input

Auxiliary heater

Power factor

Starting current

Compressor motor current

Fan motor current

Model

Output

Winding

resistance(at20:)

Model

Winding

resistance(at20:)

Dimensions WOHOD

Weight

Sound level

Fan speed

Fan speed regulator

Refrigerant filling

capacity(R22)

Refrigerating oil (Model)



R/h

K/h

A(kW)

"



"

rpm

Opetate 1 unit

2.5

1.1

3.43

775

98.2

3.10

0.33

3.09

Opetate 1 unit

B or C

2.7

1.2

4.23

965

99.2

3.90

0.33

2.70

Opetate 2 unit

A+B or A+C

2.4+2.7

0.9+1.2

7.56

1,740

99.9

6.99

0.57

2.82

Opetate 3 unit

A+B+C

2.4+1.75✕2

0.9+0.3✕2

7.79

1,785

99.6

7.22

0.57

3.12

MUX-20TV - E1

Single phase

230V, 50Hz

Opetate 2 unit

B+C

1.75✕2

0.3✕2

High: 2,460 / Low: 1,920

4.36

1,000

—

99.7

4.03

0.33

3.27

RH140VHAT (Room A) / RH174VHAT (Room B,C)

700/800

C-R 4.03/3.30

C-S 5.71/5.80

RA6V60-DA

WHT-BLK 90 BLK-YLW 54

BLK-RED 146

840✕640✕330

High: 730 / Low: 580

Room A : 0.8

Room B,C : 0.96

300(MS56) / 300(MS56)

Compressor

Electrical

data

Fan

motor

Special

remarks

Capacity

Coefficient of performance(C.O.P)

Outdoor unit power supply

Indoor unit No.

NOTE: Test conditions are based on ISO 5151.

Cooling : Indoor DB27°C / WB19°C

Outdoor DB35°C / WB(24°C)

OB284-1.qxp 01.4.26 8:59 PM Page 4

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Outdoor model

Capacity

Dehumidification

Outdoor air flow

Power outlet

Running current

Power input

Auxiliary heater

Power factor

Starting current

Compressor motor current

Fan motor current

Model

Output

Winding

resistance(at20:)

Model

Winding

resistance(at20:)

Dimensions WOHOD

Weight

Sound level

Fan speed

Fan speed regulator

Refrigerant filling

capacity(R22)

Refrigerating oil (Model)



R/h

K/h

A(kW)

"



"

rpm

Opetate 1 unit

A or B

3.5

1.6

6.11

1,350

96.1

5.79

0.32

2.52

Opetate 2 unit

A+B

3.5✕2

1.6✕2

12.42

2,760

96.6

11.81

0.61

2.46

MUX-25TV - E1

Single phase

230V, 50Hz

High:2,760 / Low:1,920

—

RH231VHAT✕2

1,100✕2

C-R 2.13

C-S 3.91

RA6V60-EA

WHT-BLK 67 BLK-YLW 75

BLK-RED 73

840✕640✕330

High: 810 / Low: 580

Room A: 0.9

Room B: 0.9

520(MS56) / 520(MS56)

Compressor

Electrical

data

Fan

motor

Special

remarks

Capacity

Coefficient of performance(C.O.P)

Outdoor unit power supply

Indoor unit No.

NOTE: Test conditions are based on ISO 5151.

Cooling : Indoor DB27°C / WB19°C

Outdoor DB35°C / WB(24°C)

OB284-1.qxp 01.4.26 8:59 PM Page 5

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NOISE CRITERIA CURVES5

10 63 125 250 500 1000 2000 4000 8000

APPROXIMATE

TERESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions.

Cooling :DB35: WB24:

High

SPEED

SPL(dB(A)) LINE

MUX-19TV - E1

MUX-20TV - E1

10 63 125 250 500 1000 2000 4000 8000

APPROXIMATE

TERESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions.

Cooling :DB35: WB24:

High

SPEED

SPL(dB(A)) LINE

MUX-25TV - E1

OB284-1.qxp 01.4.26 8:59 PM Page 6

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OUTLINES AND DIMENSIONS

MUX-19TV- E1

OUTDOOR UNIT

500

840 61.7

264.2

10°

Service panel

Open as a rule

500mm or more if

the front and both

sides are open

100mm or more

200mm or more if

there are obstacles

to both sides

Open as a rule

500mm or more if the back,

both sides and top are open 350mm or more

100mm or more

B UNIT

A UNIT

Gas refrigerant

pipe joint

Refrigerant pipe

(flared) {9.52

Gas refrigerant

pipe joint

Refrigerant pipe

(flared) {12.7

Liquid refrigerant

pipe joint

Refrigerant pipe

(flared) {6.35

66.2

80.7

121.3

438.4

Air in

Air out

Air in

272.9

100.3

125.6

319.8 34

330

640

360.6

75.8

505050

Drainage

3hoies {33

}

Unit: mm

MUX-20TV- E1

OUTDOOR UNIT

500

840 61.7

264.2

10°

Service panel

Open as a rule

500mm or more if

the front and both

sides are open

100mm or more

200mm or more if

there are obstacles

to both sides

Open as a rule

500mm or more if the back,

both sides and top are open 350mm or more

100mm or more

B UNIT

A UNIT

Gas refrigerant

pipe joint

Refrigerant pipe

(flared) {9.52

Liquid refrigerant

pipe joint

Refrigerant pipe

(flared) {6.35

66.2

121.3

438.4

Air in

Air out

Air in

272.9

100.3

125.6

319.8 34

330

640

360.6

75.8

5050505050

Drainage

3hoies {33

}

C UNIT

}

Unit: mm

OB284-1.qxp 01.4.26 8:59 PM Page 7

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MUX-25TV- E1

OUTDOOR UNIT

500

840 61.7

264.2

10°

Service panel

Open as a rule

500mm or more if

the front and both

sides are open

100mm or more

200mm or more if

there are obstacles

to both sides

Open as a rule

500mm or more if the back,

both sides and top are open 350mm or more

100mm or more

B UNIT

A UNIT

Gas refrigerant

pipe joint

Refrigerant pipe

(flared) {12.7

Liquid refrigerant

pipe joint

Refrigerant pipe

(flared) {6.35

80.7

121.3

438.4

Air in

Air out

Air in

272.9

100.3

125.6

319.8 34

330

640

360.6

75.8

505050

Drainage

3hoies {33

}

Unit: mm

OB284-1.qxp 01.4.26 8:59 PM Page 8

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WIRING DIAGRAM

OUTDOOR UNIT

MUX-19TV - MUX-25TV - E1E1 MODELS WIRING DIAGRAM

OUTDOOR UNIT

MUX-20TV - E1 MODEL WIRING DIAGRAM

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

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

3. Symbols below indicate.

/: Terminal block, : Connector

VG79B082H01

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

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

3. Symbols below indicate.

/: Terminal block, : Connector

VG79B081H01

123

(3.15A)

RED

NR61 T61

43 43

C61

LD1

WHT

OUTDOOR CONTROL PC BOARD

BRN

BLU

BRN

BLU

BRN

X522 X521

BLK

SR862

SR861

LD2

RED

BLK

YLW

WHT

652341

BRN

BLU

TB4

CN91

CN90

TB2

X521X522

F61

CN73 CN71

TO INDOOR

UNIT B

CONNECTING

12V

CIRCUIT BREAKER

GRN/YLW

ORN

BLU

YLW

BLU RED

RED

TO INDOOR

UNIT A

CONNECTING

12V

MC2

MF61

MC1

BLK

TB1

POWER SUPPLY

~/N

230V

50Hz

SYMBOL

C61

F61

MC1

SYMBOL

MC2

MF61

NR61

SR861

SR862

SYMBOL

TB1

TB2~TB4

T61

X521

X522

NAME

COMPRESSOR CAPACITOR (MC1)

COMPRESSOR CAPACITOR (MC2)

FAN MOTOR CAPACITOR

FUSE (3.15A)

COMPRESSOR (INNER PROTECTOR)

NAME

COMPRESSOR (INNER PROTECTOR)

FAN MOTOR (INNER PROTECTOR)

SURGE ABSORBER

FAN MOTOR RELAY

NAME

TERMINAL BLOCK

TRANSFORMER

COMPRESSOR CONTACTOR (MC1)

COMPRESSOR CONTACTOR (MC2)

123

(3.15A)

123123123

RED

21R421R3

NR61 T61

43 43

C61

LD1

WHT

OUTDOOR CONTROL PC BOARD

BRN

BLU

BRN

BLU

BRN

BLU

X522 X521

BLK

SR865

SR866

SR863

SR862

SR861

LD2

RED

BLK

YLW

WHT

652341

BRN

BLU

TB4

CN86

CN85

CN81

CN91

CN90

TB3

TB2

X521

BLU

X522

BLU

21RB

F61

CN74 CN73 CN71

TO INDOOR

UNIT B

CONNECTING

12V

CIRCUIT BREAKER

GRN/YLW

WHT

BLU

ORN

BLU

YLW

BLU RED

RED

TO INDOOR

UNIT A

CONNECTING

12V

MC2

TO INDOOR

UNIT C

CONNECTING

12V

MF61

MC1

BLK

TB1

POWER SUPPLY

~/N

230V

50Hz

SYMBOL

C61

F61

MC1

MC2

MF61

SYMBOL

NR61

SR861

SR862

SR863

SR865

SR866

TB1

SYMBOL

TB2~TB4

T61

X521

X522

21RB

21R3

21R4

NAME

COMPRESSOR CAPACITOR (MC1)

COMPRESSOR CAPACITOR (MC2)

FAN MOTOR CAPACITOR

FUSE (3.15A)

COMPRESSOR (INNER PROTECTOR)

FAN MOTOR (INNER PROTECTOR)

NAME

SURGE ABSORBER

FAN MOTOR RELAY

RELAY (21RB)

RELAY (C) (21R4)

RELAY (B) (21R3)

TERMINAL BLOCK

NAME

TERMINAL BLOCK

TRANSFORMER

COMPRESSOR CONTACTOR (MC1)

COMPRESSOR CONTACTOR (MC2)

SOLENOID COIL

SOLENOID COIL (B)

SOLENOID COIL (C)

OB284-1.qxp 01.4.26 8:59 PM Page 9

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REFRIGERANT SYSTEM DIAGRAM

Outside diameter Insulation

UNIT No. Pipe mm thickness Insulation material

and UNIT For liquid 6.35 8 mm Heat resisting foam plastic

UNIT For gas 9.52 8 mm 0.045 specific gravity

UNIT For gas 12.7 8 mm

MSC-07RV

Indoor unit B

MUX-19TV

Outdoor unit

Additional piping max. length 15m

MSC-12RV

Indoor unit A

LLHH

OUTDOOR UNIT

INDOOR UNIT

UNIT A

Indoor

heat

exchanger

Indoor coil

thermistor

RT12

Room

temperature

thermistor

RT11

Outdoor

heat

exchanger

(With insulation)

Refrigerant pipe

{12.7

{9.52

(With insulation)

Refrigerant pipe

{6.35

Flared connection

Stop valve

with service port

Stop valve

Capillary tube

{

3.0 ✕

{

1.6 ✕ 660

Compressor(MC1)

MSC-12RV

UNIT B

Indoor

heat

exchanger

Indoor coil

thermistor

RT12

Room

temperature

thermistor

RT11

(With insulation)

Refrigerant pipe

(With insulation)

Refrigerant pipe

{6.35

Flared connection

Stop valve

with service port

Stop valve

Capillary tube

{

3.0 ✕

{

1.4 ✕ 810

Compressor(MC2)

MSC-07RV

MSC-07RV-

MSC-12RV- E3

MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

ADDITIONAL REFRIGERANT CHARGE (R22:g)

PIPING PREPARATION

1Table below shows the specifications of pipes commercially available.

MUX-19TV- E1

2Ensure that the 2 refrigerant pipes are well insulated to prevent condensation.

3Refrigerant bending radius must be 10cm or more.

0 153045607590105120

7m Refrigerant piping length (one way)

AUNIT

BUNIT

Outdoor unit

precharged (g)

870 8m 9m 10m 11m 12m 13m 14m 15m

1,000

Unit: mm

Max. limits

UNIT No.

, BA

Pipe length

15m

LHeight difference (H)

10m

No. of bends

OB284-1.qxp 01.4.26 8:59 PM Page 10

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