Mitsubishi MUX-2A28VB-E1, MUX-2A59VB-E1, MUX-3A60VB-E1, MUX-3A63VB-E1, MUX-2A70VB-E1 Service Manual

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4 (1)

Revision B:

SPLIT-TYPE, AIR CONDITIONERS

● RoHS PARTS LIST has been added.

Please void OB384 REVISED EDITION-A.

OUTDOOR UNIT

SERVICE MANUAL

HFC

No. OB384

REVISED EDITION-B

utilized

R410A

 

Multi system type

Models

MUX-2A28VB - E1

MUX-2A59VB - E1

MUX-3A60VB - E1

MUX-3A63VB - E1

MUX-2A70VB - E1

MUX-4A73VB - E1

Indoor unit service manual

MSC-CA·VB Series (OB393)

MSC-GA·VB Series (OB385)

CONTENTS

MUX-3A60VB

MUX-3A63VB

NOTE:

This service manual describes technical data of the outdoor units.

RoHS compliant products have <G> mark on the spec name plate. For servicing of RoHS compliant products, refer to the RoHS Parts List.

1.TECHNICAL CHANGES ··············

2.PART NAMES AND FUNCTIONS···········

3.INDOOR / OUTDOOR

CORRESPONDENCE TABLE ············

4.SPECIFICATION··················

5.NOISE CRITERIA CURVES ·············

6.OUTLINES AND DIMENSIONS ···········

7.WIRING DIAGRAM ·················

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

9.PERFORMANCE CURVES ·············

10.ACTUATOR CONTROL···············

11.TROUBLESHOOTING ················

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

13.PARTS LIST····················

14.RoHS PARTS LIST·················

Revision A:

• WIRING DIAGRAM , REFRIGERANT SYSTEM DIAGRAM and PARTS LIST (Numbers of the terminal blocks) have been changed.

Revision B:

• RoHS PARTS LIST has been added.

1 TECHNICAL CHANGES

MUX-A10WV- E1 MUX-2A28VB- E1 MUX-A20WV- E1 MUX-3A60VB- E1

1. Indication of capacity has been changed. (BTU kW)

MUX-A19WV- E1 MUX-2A59VB- E1

MUX-A22WV- E1 MUX-3A63VB- E1

MUX-A25WV- E1 MUX-2A70VB- E1

MUX-A26WV- E1 MUX-4A73VB- E1

1.Indication of capacity has been changed. (BTU kW)

2.Size of stop valve (Gas) has been changed. ([12.7 [9.52)

2

Refrigerant

INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT

This room air conditioner adopts HFC refrigerant (R410A) which never destroys the ozone layer.

Pay particular attention to the following points, though the basic installation procedure is same as that for R22 conditioners.

1As R410A has working pressure approximate 1.6 times as high as that of R22, some special tools and piping parts/ materials are required. Refer to the table below.

2Take sufficient care not to allow water and other contaminations to enter the R410A refrigerant during storage and installation, since it is more susceptible to contaminations than R22.

3For refrigerant piping, use clean, pressure-proof parts/materials specifically designed for R410A. (Refer to 2. Refrigerant piping.)

4Composition change may occur in R410A since it is a mixed refrigerant. When charging, charge liquid refrigerant to prevent composition change.

Refrigerant

Refrigeration

oil

 

New refrigerant

Previous refrigerant

Refrigerant

R410A

R22

 

 

 

Composition (Ratio)

HFC-32: HFC-125 (50%:50%)

R22 (100%)

 

 

 

Refrigerant handling

Pseudo-azeotropic refrigerant

Single refrigerant

 

 

 

Chlorine

Not included

Included

 

 

 

Safety group (ASHRAE)

A1/A1

A1

 

 

 

Molecular weight

72.6

86.5

 

 

 

Boiling point (:)

-51.4

-40.8

Steam pressure [25:](Mpa)

1.557

0.94

Saturated steam density [25:](Kg/K)

64

44.4

Combustibility

Non combustible

Non combustible

 

 

 

ODP w1

0

0.055

 

 

 

GWP w2

1730

1700

 

 

 

Refrigerant charge method

From liquid phase in cylinder

Gas phase

Additional charge on leakage

Possible

Possible

Kind

Incompatible oil

Compatible oil

 

 

 

Color

Non

Light yellow

 

 

 

Smell

Non

Non

 

 

 

w1 :Ozone Destruction Parameter

: based on CFC-11

w2 :Global Warmth Parameter

: based on CO2

Compressor

 

New Specification

Current Specification

The incompatible refrigeration oil easily separates from

Since refrigerant and refrigeration oil are compatible each,

refrigerant and is in the upper layer inside the suction muffler.

refrigeration oil goes back to the compressor through the

Raising position of the oil back hole enables to back the

lower position oil back hole.

refrigeration oil of the upper layer to flow back to the

 

 

 

 

 

 

 

compressor.

 

 

 

 

 

 

Suction muffler

 

 

 

 

 

 

Suction muffler

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Oil back hole

 

 

 

 

 

 

 

Compressor

 

 

 

 

 

 

Compressor

 

 

 

 

 

 

 

 

 

 

Refrigeration oil

 

 

 

 

 

 

Oil back hole

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refrigeration oil /Refrigerant

NOTE : The unit of pressure has been changed to MPa on the international system of units(SI unit system). The conversion factor is: 1(MPa [Gauge]) =10.2(kgf/f [Gauge])

3

Conversion chart of refrigerant temperature and pressure

(MPa [Gauge])

 

 

 

 

 

 

 

 

 

 

 

 

 

4.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pressure

 

 

 

 

 

R410A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.0

 

 

 

 

 

R22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

liquid

2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.0

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE : The unit of pressure has been changed to MPa on the

 

 

 

 

 

 

 

 

 

 

 

 

 

1.5

 

 

 

 

 

 

 

 

 

 

 

 

 

Saturated

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

international system of units(SI unit system).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

The conversion factor is: 1(MPa [Gauge]) =10.2(kgf/f [Gauge])

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-30 -20

-10 0 10 20 30 40 50 60 (:)

1.Tools dedicated for the air conditioner with R410A refrigerant

The following tools are required for R410A refrigerant. Some R22 tools can be substituted for R410A tools.

The diameter of the service port on the stop valve in outdoor unit has been changed to prevent any other refrigerant being charged into the unit. Cap size has been changed from 7/16 UNF with 20 threads to 1/2 UNF with 20 threads.

R410A tools

Can R22 tools be used?

Description

 

 

R410A has high pressures beyond the measurement range of existing

Gauge manifold

No

gauges. Port diameters have been changed to prevent any other refrigerant

 

 

from being charged into the unit.

 

 

 

Charge hose

No

Hose material and cap size have been changed to improve the pressure

resistance.

 

 

Gas leak detector

No

Dedicated for HFC refrigerant.

 

 

 

Torque wrench

Yes

6.35 mm and 9.52 mm

Flare tool

Yes

Clamp bar hole has been enlarged to reinforce the spring strength in the tool.

 

 

 

Flare gauge

New

Provided for flaring work (to be used with R22 flare tool).

Vacuum pump

New

Provided to prevent the back flow of oil. This adapter enables you to use

adapter

vacuum pumps.

 

Electronic scale for

New

It is difficult to measure R410A with a charging cylinder because the

refrigerant charging

refrigerant bubbles due to high pressure and high-speed vaporization

 

 

 

 

No : Not Substitutable for R410A Yes : Substitutable for R410A

2.Refrigerant piping

1Specifications

Use the refrigerant pipes that meet the following specifications.

Pipe

Outside diameter

Wall

Insulation material

 

mm

thickness

 

 

 

 

 

 

For liquid

6.35

0.8 mm

Heat resisting foam plastic

 

 

 

 

For gas

9.52

0.8 mm

Specific gravity 0.045 Thickness 8 mm

 

 

 

 

Use a copper pipe or a copper-alloy seamless pipe with a thickness of 0.8 mm. Never use any pipe with a thickness less than 0.8mm, as the pressure resistance is insufficient.

4

2Flaring work and flare nut

Flaring work for R410A pipe differs from that for R22 pipe.

For details of flaring work, refer to Installation manual “FLARING WORK”.

Pipe diameter

Dimension of flare nut

 

mm

R410A

R22

6.35

17

17

9.52

22

22

3.Refrigerant oil

Apply the special refrigeration oil (accessories: packed with indoor unit) to the flare and the union seat surfaces.

4.Air purge

Do not discharge the refrigerant into the atmosphere.

Take care not to discharge refrigerant into the atmosphere during installation, reinstallation, or repairs to the refrigerant circuit.

Use the vacuum pump for air purging for the purpose of environmental protection.

5.Additional charge

For additional charging, charge the refrigerant from liquid phase of the gas cylinder.

If the refrigerant is charged from the gas phase, composition change may occur in the refrigerant inside the cylinder and the outdoor unit. In this case, ability of the refrigeration cycle decreases or normal operation can be impossible. However, charging the liquid refrigerant all at once may cause the compressor to be locked. Thus, charge the refrigerant slowly.

Indoor unit

Refrigerant gas cylinder operating valve

Union

 

Stop valve

Liquid pipe

 

Gas pipe

Outdoor unit

Service port

Gauge manifold valve (for R410A)

Charge hose (for R410A)

Refrigerant gas cylinder for R410A with siphon

Refrigerant (liquid)

Electronic scale for refrigerant charging

5

2 PART NAMES AND FUNCTIONS

MUX-2A28VB

Air inlet (back and side)

Piping

Drain hose

Air outlet

Drain outlet

MUX-2A59VB MUX-3A63VB

MUX-4A73VB

MUX-3A60VB MUX-2A70VB

 

Air inlet

Air inlet

(Back and side)

(Back and side)

Air outlet

Air outlet

Piping

Piping

Drainage hose

Drainage hose

 

Drain outlet

Drain outlet

3 INDOOR / OUTDOOR CORRESPONDENCE TABLE

MUX-2A28VB MUX-2A59VB MUX-3A60VB MUX-3A63VB MUX-2A70VB MUX-4A73VB

 

 

MUX-2A28VB

Combination of

A:

MSC-CA20VB

 

 

the connectable

B:

or

indoor units

MSC-GA20VB

 

 

 

OUTDOOR UNIT

MUX-2A59VB

 

MUX-3A60VB

 

MUX-3A63VB

 

 

A: MSC-CA35VB

 

 

A: MSC-CA35VB

or

A:

MSC-CA25VB

 

or

MSC-GA35VB

 

MSC-GA35VB

B:

or

 

 

 

B: MSC-CA20VB

B:

MSC-CA20VB

C:

MSC-GA25VB

or

 

or

 

 

 

MSC-GA20VB

 

 

C: MSC-GA20VB

 

 

 

 

 

 

 

 

MUX-2A70VB

MUX-4A73VB

 

 

A: MSC-CA35VB

A:

MSC-CA35VB

or

 

or

B: MSC-GA35VB

B:

C: MSC-CA25VB

MSC-GA35VB

 

 

or

 

 

D: MSC-GA25VB

 

 

 

6

4 SPECIFICATION

NOTE: As for specification of the indoor units, refer to indoor unit service manual.

Outdoor model

Function

Outdoor unit power supply

Indoor unit No.

Capacity

Outdoor air flow

K /h

 

Capacity

kW

 

Dehumidification

R/h

 

Power outlet

A

 

Running current

A

Electrical data

Power input

W

Auxiliary heater

A(kW)

 

 

Power factor

%

 

Starting current

A

 

Compressor motor current

A

 

Fan motor current

A

Coefficient of performance (C.O.P)

Compressor

Model

 

Output

W

 

 

Winding

"

 

resistance (at 20:)

 

 

Fan motor

Model

 

Winding

"

 

 

resistance (at 20:)

 

 

 

Dimensions WOHOD

mm

 

Weight

kg

 

Sound level

dB

Special remarks

Fan speed

rpm

Fan speed regulator

kg

 

 

 

Refrigerant filling

 

 

capacity (R410A)

 

 

Refrigeration oil (Model)

cc

MUX-2A28VB

 

MUX-2A59VB

 

 

Cooling

 

Cooling

 

Single phase

 

Single phase

 

230V,50Hz

 

230V,50Hz

 

Single

Double

Single

Single

Double

A or B

A+B

A

B

A+B

2.4

1.4O2

3.5

2.4

3.5+2.4

0.9

0.2O2

1.4

0.9

1.4+0.9

 

1,914

 

2,460

 

 

10

 

20

 

3.20

3.25

5.73

3.51

8.96

725

730

1,280

785

2,005

 

 

 

98.5

97.7

97.1

97.2

97.3

 

21

 

48

 

2.91

2.96

5.16

2.94

8.39

 

0.29

 

0.57

 

3.16

3.50

2.65

2.93

2.84

RN092VHSHT

MC1 : RN145VHSHT, MC2 : RN092VHSHT

 

600

 

MC1 : 1,000, MC2 : 600

C-R 3.87

MC1 : C-R 2.43 , MC2 : C-R 3.87

C-S 6.14

 

C-S 3.80

C-S 6.14

RA6V33-FC

 

RA6V60-GA

 

WHT-BLK 223

 

WHT-BLK 90

 

BLK-RED 221

 

BLK-RED 146

 

780O540O255

 

840O640O330

 

 

35

 

66

 

 

49

 

52

 

 

825

 

730

 

 

1

 

1

 

0.90 (Room A+B)

 

1.00 (Room A)

 

 

0.80 (Room B)

 

 

 

 

 

350 (NEO22)

MC1 : 620 (NEO22), MC2 : 350 (NEO22)

 

 

 

 

 

NOTE: Test conditions are based on ISO 5151. Cooling : Indoor DB27°C WB19°C

Outdoor DB35°C WB24°C Indoor-Outdoor piping length : 5m

7

NOTE: As for specification of the indoor units, refer to indoor unit service manual.

Outdoor model

Function

Outdoor unit power supply

Indoor unit No.

Capacity

Outdoor air flow

K /h

 

Capacity

kW

 

Dehumidification

R/h

 

Power outlet

A

 

Running current

A

Electrical data

Power input

W

Auxiliary heater

A(kW)

 

 

Power factor

%

 

Starting current

A

 

Compressor motor current

A

 

Fan motor current

A

Coefficient of performance (C.O.P)

Compressor

Model

"

Output

 

W

 

Winding

 

 

resistance (at 20:)

 

Fan motor

Model

 

Winding

"

 

 

resistance (at 20:)

 

 

 

Dimensions WOHOD

mm

 

Weight

kg

 

Sound level

dB

Special remarks

Fan speed

rpm

Fan speed regulator

kg

 

 

 

Refrigerant filling

 

 

capacity (R410A)

 

 

Refrigeration oil (Model)

cc

MUX-3A60VB

Cooling

Single phase 230V,50Hz

Single

Single

Double

Double

Triple

A

B or C

A+B or A+C

B+C

A+B+C

2.6

2.9

2.6+2.8

1.75O2

2.5+1.75O2

0.9

1.2

0.9+1.1

0.3O2

0.8+0.3O2

 

 

2,460

 

 

 

 

20

 

 

3.64

4.86

8.18

4.86

8.41

815

1,075

1,850

1,090

1,885

 

 

 

 

97.3

96.2

98.3

97.5

97.5

 

 

47

 

 

3.07

4.29

7.61

4.29

7.84

 

 

0.57

 

 

3.06

2.61

2.81

3.02

3.02

MC1 : RN099VHSHT, MC2 : RN125VHSHT

MC1 : 650, MC2 : 800

MC1 : C-R 3.40 , MC2 : C-R 2.86

C-S 4.56 C-S 5.72

RA6V60-GA

WHT-BLK 90

BLK-RED 146

840O640O330

65

52

730

1

0.80(Room A)

1.00(Room B+C)

MC1 : 350 (NEO22), MC2 : 350 (NEO22)

NOTE: Test conditions are based on ISO 5151. Cooling : Indoor DB27°C WB19°C

Outdoor DB35°C WB24°C Indoor-Outdoor piping length : 5m

8

NOTE: As for specification of the indoor units, refer to indoor unit service manual.

Outdoor model

Function

Outdoor unit power supply

Indoor unit No.

Capacity

Outdoor air flow

K /h

 

Capacity

kW

 

Dehumidification

R/h

 

Power outlet

A

 

Running current

A

Electrical data

Power input

W

Auxiliary heater

A(kW)

 

 

Power factor

%

 

Starting current

A

 

Compressor motor current

A

 

Fan motor current

A

Coefficient of performance (C.O.P)

Compressor

Model

"

Output

 

W

 

Winding

 

 

resistance (at 20:)

 

Fan motor

Model

 

Winding

"

 

 

resistance (at 20:)

 

 

 

Dimensions WOHOD

mm

 

Weight

kg

 

Sound level

dB

 

Fan speed

rpm

Special remarks

Fan speed regulator

 

Refrigerant filling

kg

 

capacity (R410A)

 

 

Refrigeration oil (Model)

cc

MUX-3A63VB

Cooling

Single phase 230V,50Hz

Single

Single

Double

Double

Triple

A

B or C

A+B or A+C

B+C

A+B+C

3.5

2.4

3.5+2.4

1.45O2

3.4+1.45O2

1.4

0.9

1.4+0.9

0.4

1.4+0.4

 

 

2,460

 

 

 

 

20

 

 

5.73

3.64

8.92

3.69

8.84

1,280

815

1,975

830

1,980

 

 

 

 

97.1

97.3

96.3

97.8

97.4

 

 

48

 

 

5.02

2.99

8.01

2.99

8.01

 

 

0.57

 

 

2.65

2.82

2.88

3.22

3.01

 

MC1 : RN145VHSHT, MC2 : RN092VHSHT

 

 

 

MC1 : 1,000, MC2 : 600

 

 

MC1 : C-R 2.43 , MC2 : C-R 3.87

 

 

 

C-S 3.80

C-S 0.14

 

RA6V60-GA

WHT-BLK 90

BLK-RED 146

840O640O330

67

52

730

1

0.85(Room A)

0.85(Room B+C)

MC1 : 620 (NEO22), MC2 : 350 (NEO22)

NOTE: Test conditions are based on ISO 5151. Cooling : Indoor DB27°C WB19°C

Outdoor DB35°C WB24°C Indoor-Outdoor piping length 5m

9

NOTE: As for specification of the indoor units, refer to indoor unit service manual.

Outdoor model

Function

Outdoor unit power supply

Indoor unit No.

Capacity

Outdoor air flow

K /h

 

Capacity

kW

 

Dehumidification

R/h

 

Power outlet

A

 

Running current

A

Electrical data

Power input

W

Auxiliary heater

A(kW)

 

 

Power factor

%

 

Starting current

A

 

Compressor motor current

A

 

Fan motor current

A

Coefficient of performance (C.O.P)

Compressor

Model

 

Output

W

 

 

Winding

"

 

resistance (at 20:)

 

 

Fan motor

Model

"

Winding

 

 

 

resistance (at 20:)

 

 

Dimensions WOHOD

mm

 

Weight

kg

 

Sound level

dB

 

Fan speed

rpm

Special remarks

Fan speed regulator

 

Refrigerant filling

kg

 

 

capacity (R410A)

 

 

 

Refrigeration oil (Model)

cc

NOTE: Test conditions are based on ISO 5151. Cooling : Indoor DB27°C WB19°C

Outdoor DB35°C WB24°C Indoor-Outdoor piping length : 5m

MUX-2A70VB

 

Cooling

 

Single phase 230V,50Hz

Single

Double

A or B

A+B

3.5

3.5O2

1.4

1.4O2

2,460

 

20

 

5.88

11.49

1,300

2,540

 

96.1

96.1

54

 

5.31

10.92

0.57

 

2.61

2.67

MC1 : RN145VHSHT, MC2 : RN145VHSHT

MC1 : 1,000, MC2 : 1,000

MC1 : C-R 2.43 , MC2 : C-R 2.43

C-S 3.80

C-S 3.80

RA6V60-GA

 

WHT-BLK 90

 

BLK-RED 146

 

840O640O330

 

68

 

52

 

730

 

1

 

0.95 (Room A)

 

0.95 (Room B)

MC1 : 620 (NEO22), MC2 : 620 (NEO22)

10

NOTE: As for specification of the indoor units, refer to indoor unit service manual.

Outdoor model

Function

Outdoor unit power supply

Indoor unit No.

Capacity

Outdoor air flow

K /h

 

Capacity

kW

 

Dehumidification

R/h

 

Power outlet

A

 

Running current

A

Electrical data

Power input

W

Auxiliary heater

A(kW)

 

 

Power factor

%

 

Starting current

A

 

Compressor motor current

A

 

Fan motor current

A

Coefficient of performance (C.O.P)

Compressor

Model

 

Output

W

 

 

Winding

"

 

resistance (at 20:)

 

 

Fan motor

Model

"

Winding

 

 

 

resistance (at 20:)

 

 

Dimensions WOHOD

mm

 

Weight

kg

 

Sound level

dB

Special remarks

Fan speed

rpm

Fan speed regulator

 

 

 

 

Refrigerant filling

kg

 

capacity (R410A)

 

 

 

Refrigeration oil (Model)

cc

MUX-4A73VB

Cooling

Single phase 230V,50Hz

Single

Single

Double

Double

Double

Triple

Triple

Four

A+C or A+D

A+B+C

A+C+D

 

 

 

 

 

A or B

C or D

A+B

or

C+D

or

or

A+B+C+D

 

 

 

B+C or B+D

 

A+B+D

B+C+D

 

3.4

2.75

1.95O2

3.4+2.7

1.7O2

1.95O2+2.8 3.4+1.7O2 1.95O2+1.7O2

1.2

1.1

0.2O2

1.2+1.1

0.3O2 0.2O2+1.1

1.2+0.3O2 0.2O2+0.3O2

 

 

 

2,760

 

 

 

 

 

 

20

 

 

 

 

5.28

4.54

5.46

9.57

4.78

9.61

9.66

9.75

1,180

1,015

1,210

2,095

1,060

2,105

2,140

2,210

 

 

 

 

 

 

 

97.2

97.2

96.4

95.2

96.4

95.2

96.3

98.6

 

 

 

52

 

 

 

 

4.75

4.01

4.93

9.04

4.25

9.08

9.13

9.22

 

 

 

0.53

 

 

 

2.79

2.62

3.02

2.81

3.01

3.02

3.02

3.09

 

 

MC1 : RN145VHSHT, MC2 : RN125VHSHT

 

 

 

 

 

MC1 : 1,000, MC2 : 800

 

 

 

 

MC1 : C-R 2.43 , MC2 : C-R 2.86

 

 

 

 

 

C-S 3.80

C-S 5.72

 

 

RA6V60-FA

WHT-BLK 79

BLK-RED 80

840O850O330

76

52

730

1

1.05(Room A+B)

1.05(Room C+D)

MC1 : 620 (NEO22), MC2 : 350 (NEO22)

NOTE: Test conditions are based on ISO 5151. Cooling : Indoor DB27°C WB19°C

Outdoor DB35°C WB24°C Indoor-Outdoor piping length : 5m

11

Mitsubishi MUX-2A28VB-E1, MUX-2A59VB-E1, MUX-3A60VB-E1, MUX-3A63VB-E1, MUX-2A70VB-E1 Service Manual

5 NOISE CRITERIA CURVES

MUX-2A28VB

 

 

FUNCTION

SPL(dB(A))

LINE

 

 

 

 

 

 

 

 

 

 

 

 

 

COOL

49

 

 

 

 

 

 

Test conditions.

 

 

 

90

 

 

 

 

Cooling : DB27:

WB19:

 

 

 

 

 

 

 

 

 

MICRO BAR

80

 

 

 

 

 

 

 

 

70

 

 

 

 

 

 

 

 

dB re 0.0002

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-70

60

 

 

 

 

 

 

 

 

LEVEL,

 

 

 

 

 

 

 

 

NC-60

 

 

 

 

 

 

 

 

 

PRESSURE

50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-50

 

 

 

 

 

 

 

 

 

BAND SOUND

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-40

30

 

 

 

 

 

 

 

 

OCTAVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-30

 

 

 

 

 

 

 

 

 

 

20

APPROXIMATE

 

 

 

 

 

 

 

 

TERESHOLD OF

 

 

 

 

 

 

 

 

HEARING FOR

 

 

 

 

 

NC-20

 

 

CONTINUOUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOISE

 

 

 

 

 

 

 

 

10

63

125

250

500

1000

2000

4000

8000

 

 

BAND CENTER FREQUENCIES, Hz

MUX-4A73VB

 

 

FUNCTION

SPL(dB(A))

LINE

 

 

 

 

 

 

 

 

 

 

 

 

 

COOL

52

 

 

 

 

 

 

Test conditions.

 

 

 

90

 

 

 

 

Cooling :DB35:

WB24:

 

 

 

 

 

 

 

 

 

MICRO BAR

80

 

 

 

 

 

 

 

 

70

 

 

 

 

 

 

 

 

dB re 0.0002

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-70

60

 

 

 

 

 

 

 

 

LEVEL,

 

 

 

 

 

 

 

 

NC-60

 

 

 

 

 

 

 

 

 

PRESSURE

50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-50

 

 

 

 

 

 

 

 

 

BAND SOUND

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-40

30

 

 

 

 

 

 

 

 

OCTAVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-30

 

 

 

 

 

 

 

 

 

 

20

APPROXIMATE

 

 

 

 

 

 

 

 

TERESHOLD OF

 

 

 

 

 

 

 

 

HEARING FOR

 

 

 

 

 

NC-20

 

 

CONTINUOUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOISE

 

 

 

 

 

 

 

 

10

63

125

250

500

1000

2000

4000

8000

 

 

BAND CENTER FREQUENCIES, Hz

MUX-2A59VB

 

 

FUNCTION

SPL(dB(A))

LINE

 

 

 

 

 

 

MUX-3A60VB

 

 

 

COOL

52

 

 

 

 

 

 

 

MUX-3A63VB

 

 

 

 

 

 

MUX-2A70VB

 

 

 

 

 

 

 

 

 

 

 

Test conditions.

 

 

90

 

 

 

 

Cooling :DB35:

WB24:

 

 

 

 

 

 

 

 

 

MICRO BAR

80

 

 

 

 

 

 

 

 

70

 

 

 

 

 

 

 

 

dB re 0.0002

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-70

60

 

 

 

 

 

 

 

 

LEVEL,

 

 

 

 

 

 

 

 

NC-60

 

 

 

 

 

 

 

 

 

PRESSURE

50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-50

 

 

 

 

 

 

 

 

 

BAND SOUND

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-40

30

 

 

 

 

 

 

 

 

OCTAVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC-30

 

 

 

 

 

 

 

 

 

 

20

APPROXIMATE

 

 

 

 

 

 

 

 

TERESHOLD OF

 

 

 

 

 

 

 

 

HEARING FOR

 

 

 

 

 

NC-20

 

 

CONTINUOUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOISE

 

 

 

 

 

 

 

 

10

63

125

250

500

1000

2000

4000

8000

 

 

BAND CENTER FREQUENCIES, Hz

12

6 OUTLINES AND DIMENSIONS

MUX-2A28VB

 

Air in

 

320

32

 

109

 

Air in

 

Drainage

147 110

3holes [33

Air out

540

260

 

 

10

40

122

500

780

MUX-2A59VB

 

 

 

500

Drainage

 

438

3holes {33

273

Air in

 

 

 

 

 

30

125

34

 

 

 

Air in

 

 

 

100

 

40

 

 

 

Air out

840

121

320

330

61

640

65

80

REQUIRED SPACE more or100mm

100mm

or

 

 

more

255 285 320

 

 

 

 

ore

m

or

m

 

 

 

400m

 

 

25

Unit: mm

more

mor 100m

350mm

or

more

 

 

 

Service panel

Liquid refrigerant

 

 

pipe joint

 

 

Refrigerant pipe

 

 

(flared) [6.35

226 176 126 76

 

-

 

10

 

Gas refrigerant

 

 

pipe joint

 

120

Refrigerant pipe

56

(flared) [9.52

 

Open as a rule 500mm or more if the front and both sides are open

100mm or more 100mm or more 200mm or more if

there are obstacles to both sides

360

Open as a rule

500mm or more if the back,

350mm or more

both sides and top are open

 

Service panel

 

Liquid refrigerant

 

pipe joint

 

 

Refrigerant pipe

 

(flared) {6.35

 

°

 

Gas refrigerant

 

 

 

°

10

 

pipe joint

10

} A UNIT

505050

Refrigerant pipe

 

(flared) {9.52

 

} B UNIT

 

 

 

76

 

 

264

 

Gas refrigerant

 

 

pipe joint

Refrigerant pipe (flared) {9.52

13

MUX-3A60VB MUX-3A63VB

Drainage

 

3 holes {33

273

 

 

125

34

 

 

Air in

 

 

100

 

320

MUX-2A70VB

Drainage

 

3 holes {33

273

 

 

125

34

 

 

Air in

 

 

100

 

320

500

438

Air in

30

330

360

 

40

Air out

 

840

61

121

 

 

 

°

640

°

10

10

 

 

 

65

Unit: mm

Open as a rule 500mm or more if the front and both sides are open

100mm or more 100mm or more 200mm or more if

there are obstacles on both sides

Open as a rule

 

500mm or more if the back,

350mm or more

both sides and top are open

 

Service panel Liquid refrigerant pipe joint Refrigerant pipe (flared) {6.35

} C UNIT 50

} A UNIT

50

505050

} B UNIT

 

 

76

 

Gas refrigerant

264

pipe joint

Refrigerant pipe

 

 

(flared) {9.52

500

438

Air in

30

330

360

40

Air out

840

61

121

 

640

°

 

 

10

80

Open as a rule 500mm or more if the front and both sides are open

100mm or more 100mm or more 200mm or more if

there are obstacles on both sides

Open as a rule

500mm or more if the back, 350mm or more both sides and top are open

 

Service panel

 

Liquid refrigerant

 

pipe joint

°

Refrigerant pipe

(flared) {6.35

10

} A UNIT 505050

 

} B UNIT

 

76

Gas refrigerant 264 pipe joint

Refrigerant pipe (flared) {9.52

14

MUX-4A73VB

Drainage

438

 

40

273

 

3 holes

 

Air in

{33

 

100

 

 

34

30

 

 

 

330

125

 

 

 

 

Air in

 

 

 

 

 

 

Air out

500

 

 

 

840

 

 

 

121

 

850

430

Unit: mm

 

 

Open as a rule

 

 

500mm or more if

 

 

the front and both

 

 

sides are open

 

 

100mm or more

 

100mm or more

200mm or more if

 

there are obstacles

 

 

on both sides

360

 

 

65

Open as a rule

 

500mm or more if the back,

350mm or more

61

both sides and top are open

 

Service panel

 

 

Liquid refrigerant

 

 

pipe joint

 

 

Refrigerant pipe

 

 

(flared) {6.35

10

10

 

 

°

D Unit

50

°

 

 

 

50 50

Gas refrigerant

C Unit

 

50 50

pipe joint

 

B Unit

Refrigerant pipe

 

50

A Unit

50

(flared) {9.52

 

 

 

 

76

80 Gas refrigerant

260

 

pipe joint

 

 

 

Refrigerant pipe

 

 

(flared) {9.52

 

 

15

7

WIRING DIAGRAM

 

 

 

 

 

 

 

 

 

 

 

MUX-2A28VB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POWER SUPPLY

L TB1

 

BRN

 

52C

 

 

 

 

 

 

 

 

 

 

 

NO

COM

 

 

WHT

 

 

 

 

 

~ / N

 

 

 

 

 

 

 

WHT

 

 

WHT 1

 

 

 

 

 

230V

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TB3

 

 

 

 

50Hz

 

 

 

 

 

 

F62

 

C

 

 

 

 

 

 

 

BRN

 

BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PE

BRN

 

BLU

F61

 

 

 

 

C1 RED S

MC

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CIRCUIT BREAKER

DSAR

 

 

 

BLU

6 X1

2

BRN

WHT

 

 

 

 

 

 

 

 

 

BLU 252C1

5 X1

1

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

BLU 2 BLU

 

 

 

 

 

WHT

WHT

 

TO INDOOR

2

TB2

 

21R1BLU 1 BLU

BLU

 

4

BRN

C2

BLU 1

BLK

 

 

WHT7

 

 

 

 

5 X2 1

RED 3

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

MF

 

UNIT No.A

1

X1

 

 

 

 

 

 

3

BRN

 

 

 

 

 

CONNECTING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6 X2 2

 

 

 

 

 

 

12V

2

BLK 8

 

BLU 2 BLU

 

 

4

 

 

 

 

 

 

TO INDOOR

YLW7

 

21R2BLU

1

BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT 2 BLU

 

 

UNIT No.B

1

X2

 

 

 

 

 

 

 

 

 

21R

 

CONNECTING

ORN8

 

 

 

2

 

 

 

 

 

BLU 1 BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

12V

 

 

 

 

TB3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SYMBOL

NAME

C1

COMPRESSOR CAPACITOR

C2

OUTDOOR FAN CAPACITOR

DSAR

SURGE ABSORBER

F61,F62

FUSE(2A)

MC

COMPRESSOR(INNER PROTECTOR)

SYMBOL

NAME

SYMBOL

NAME

MF

OUTDOOR FAN MOTOR(INNER FUSE)

21R1

SOLENOID COIL(A)

TB1,TB2,TB3

TERMINAL BLOCK

21R2

SOLENOID COIL(B)

X1

RELAY(A)

52C

COMPRESSOR CONTACTOR

X2

RELAY(B)

 

 

21R

SOLENOID COIL

 

 

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

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

3.Symbols below indicate.

/: Terminal block, : Connector

16

MUX-2A59VB

MUX-2A70VB

POWER SUPPLY

LTB1

BRN

TB4

 

 

 

 

 

 

 

~/N

2

 

 

 

 

 

 

 

 

230V

N

BLU

1

 

 

 

 

 

 

 

BLU

50Hz

 

 

 

 

 

 

 

 

PE

BRN

 

 

 

 

 

 

 

 

 

 

 

GRN/YLW

DSAR

 

3 2 1

CN90 OUTDOOR CONTROLBRN

 

BRN

 

 

 

 

CIRCUIT BREAKER

 

 

 

BLU

BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TO INDOOR

1 TB2

BLU

 

 

 

 

 

P.C. BOARD

 

X521

 

3

 

F61

 

 

 

 

X522

3 4

UNIT A

2

YLW

 

CN71

 

 

 

 

CONNECTING

 

2

 

 

 

 

3

4

12V

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TO INDOOR

1

BLU

 

3

 

 

 

NR61

 

 

X522

X521

 

CN73

 

 

 

 

 

 

 

UNIT B

 

 

 

SR861

 

 

 

T61

 

 

2

ORN

 

2

 

 

 

 

 

CONNECTING

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

12V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN91 1 2 3 4 5 6

LD2

LD1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

BLK

RED

RED

RED

 

 

BLU

C1 RED

S

BLK R MC1 C

WHT

C2 RED

S

BLK R MC2 C

WHT

MF61 C61

SYMBOL

NAME

SYMBOL

C1

COMPRESSOR CAPACITOR(MC1)

MC1

C2

COMPRESSOR CAPACITOR(MC2)

MC2

C61

OUTDOOR FAN CAPACITOR

MF61

DSAR

SURGE ABSORBER

NR61

F61

FUSE(3.15A)

SR861

NAME

SYMBOL

NAME

COMPRESSOR(INNER PROTECTOR)

TB1

TERMINAL BLOCK

COMPRESSOR(INNER PROTECTOR) TB2~TB4

TERMINAL BLOCK

OUTDOOR FAN MOTOR (INNER PROTECTOR)

T61

TRANSFORMER

SURGE ABSORBER

X521

COMPRESSOR CONTACTOR(MC1)

OUTDOOR FAN RELAY

X522

COMPRESSOR CONTACTOR(MC2)

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

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

3.Symbols below indicate.

/: Terminal block, : Connector

17

18

POWER SUPPLY

L

TB1

~/N

 

 

230V

N

 

50Hz

 

 

 

 

 

PE

CIRCUIT BREAKER

 

TO INDOOR

1

TB2

UNIT A

2

 

CONNECTING

 

TO INDOOR

1

 

UNIT B

2

 

CONNECTING

 

TO INDOOR

1

TB3

UNIT C

2

 

CONNECTING

 

12V

 

 

TB4 BRN 2

 

BLU 1

GRN/YLW

BRN

DSAR

 

BLU

 

YLW

 

BLU

 

ORN

 

BLU

 

WHT

3

2

1

3

2

1

3

2

1

BLU

BRN

 

 

 

 

BRN

3 2 1 CN90 OUTDOOR CONTROL P.C. BOARD

CN71

F61

 

 

 

 

 

CN73

 

NR61

 

 

 

 

SR861

 

 

 

T61

 

CN74

 

 

 

 

 

 

 

 

SR863

CN91 1 2

 

LD2

LD1

CN81

3 4 5 6

1

2 3

 

WHT BLK

RED

RED

RED

BLU

BLU

 

 

MF61

 

 

21RB

C61

BLU

 

BRN

 

 

X521

 

X522

3

4

3

4

 

X522

X521

 

 

SR866

 

 

SR865

 

CN85

CN86

1

2

3

1

2

3

BLU

BLU

BLU

BLU

21R3 21R4

BLU

C1 RED

S

BLK R MC1 C

WHT

C2 RED

S

BLK R MC2 C

WHT

 

SYMBOL

NAME

 

SYMBOL

NAME

SYMBOL

NAME

 

C1

 

COMPRESSOR CAPACITOR(MC1)

MF61

OUTDOOR FAN MOTOR(INNER PROTECTOR)

TB2~TB4

TERMINAL BLOCK

 

C2

 

COMPRESSOR CAPACITOR(MC2)

NR61

SURGE ABSORBER

T61

TRANSFORMER

 

C61

OUTDOOR FAN CAPACITOR

SR861

OUTDOOR FAN RELAY

X521

COMPRESSOR CONTACTOR(MC1)

 

DSAR

SURGE ABSORBER

 

SR863

RELAY (21RB)

X522

COMPRESSOR CONTACTOR(MC2)

 

F61

 

FUSE(3.15A)

 

SR865

RELAY (C) (21R4)

21RB

SOLENOID COIL

 

MC1

COMPRESSOR(INNER PROTECTOR)

SR866

RELAY (B) (21R3)

21R3

SOLENOID COIL (B)

 

MC2

COMPRESSOR(INNER PROTECTOR)

TB1

TERMINAL BLOCK

21R4

SOLENOID COIL (C)

 

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

 

 

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

 

 

12 12

 

3. Symbols below indicate.

 

 

 

 

 

/: Terminal block,

 

 

 

 

 

: Connector

 

 

 

 

 

 

 

 

 

 

 

 

 

3A60VB-MUX

VV

19

POWER SUPPLY

L

TB1

~/N

 

 

230V

N

 

50Hz

 

 

 

 

 

PE

CIRCUIT BREAKER

 

TO INDOOR

1

TB2

UNIT A

2

 

CONNECTING

 

TO INDOOR

1

 

UNIT B

2

 

CONNECTING

 

TO INDOOR

1

TB3

UNIT C

2

 

CONNECTING

 

12V

 

 

TB4 BRN 2

 

BLU 1

GRN/YLW

BRN

DSAR

 

BLU

 

YLW

 

BLU

 

ORN

 

BLU

 

WHT

3

2

1

3

2

1

3

2

1

BLU

BRN

 

 

 

 

BRN

3 2 1 CN90 OUTDOOR CONTROL P.C. BOARD

CN71

F61

 

 

 

 

 

CN73

 

NR61

 

 

 

 

SR861

 

 

 

T61

 

CN74

 

 

 

 

 

 

 

 

SR863

CN91 1 2

 

LD2

LD1

CN81

3 4 5 6

1

2 3

 

WHT BLK

RED

RED

RED

BLU

BLU

 

 

MF61

 

 

21RB

C61

BLU

 

BRN

 

 

X521

 

X522

3

4

3

4

 

X522

X521

 

 

SR866

 

 

SR865

 

CN85

CN86

1

2

3

1

2

3

BLU

BLU

BLU

BLU

21R3 21R4

BLU

C1 RED

S

BLK R MC1 C

WHT

C2 RED

S

BLK R MC2 C

WHT

 

SYMBOL

NAME

 

SYMBOL

NAME

SYMBOL

NAME

 

C1

 

COMPRESSOR CAPACITOR(MC1)

MF61

OUTDOOR FAN MOTOR(INNER PROTECTOR)

TB2~TB4

TERMINAL BLOCK

 

C2

 

COMPRESSOR CAPACITOR(MC2)

NR61

SURGE ABSORBER

T61

TRANSFORMER

 

C61

OUTDOOR FAN CAPACITOR

SR861

OUTDOOR FAN RELAY

X521

COMPRESSOR CONTACTOR(MC1)

 

DSAR

SURGE ABSORBER

 

SR863

RELAY (21RB)

X522

COMPRESSOR CONTACTOR(MC2)

 

F61

 

FUSE(3.15A)

 

SR865

RELAY (C) (21R4)

21RB

SOLENOID COIL

 

MC1

COMPRESSOR(INNER PROTECTOR)

SR866

RELAY (B) (21R3)

21R3

SOLENOID COIL (B)

 

MC2

COMPRESSOR(INNER PROTECTOR)

TB1

TERMINAL BLOCK

21R4

SOLENOID COIL (C)

 

 

 

 

 

 

 

12 12

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

 

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

 

 

 

 

3. Symbols below indicate.

 

 

 

 

 

 

/: Terminal block,

 

 

 

 

 

: Connector

 

 

 

 

 

 

 

 

 

 

 

 

 

3A63VB-MUX

VV

20

 

LTB1

POWER SUPPLY

N

~/N

 

230V

PE

50Hz

 

CIRCUIT BREAKER

 

TB2

TO INDOOR

1

 

UNIT D

 

CONNECTING

2

12V

TO INDOOR

1

 

UNIT C

 

CONNECTING

2

12V

TO INDOOR

1 TB3

 

UNIT B

 

CONNECTING

2

12V

 

TO INDOOR

1

 

UNIT A

 

CONNECTING

 

12V

2

TB4

BRN 2

BLU 1

GRN/YLW

BRN

DSAR

BLU

3

2 WHT 1

BLU

3

2 ORN 1

BLU

3

2 BRN 1

BLU

3

2

YLW

1

BLU

BRN

 

 

3

2

1

CN90

CN74

F61

 

 

CN73

 

 

 

CN72

SR861

 

 

CN71

 

 

 

CN91 1 2 3 4 5 6

WHT BLK

RED

MF61

NR61

LD2

LD1

RED

RED

 

C61

BRN

BRN

BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C1

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR CONTROL P.C. BOARD

 

 

 

 

 

 

 

BLK

R MC1 C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X521

 

 

WHT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X522

 

 

3

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

4

 

 

 

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C2

S

 

 

 

 

 

 

 

 

 

 

X522

 

 

X521

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T61

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

R MC2 C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

 

SR868

 

 

SR867

 

 

SR866

 

 

SR865

 

 

 

SR864

 

SR863

 

 

 

CN83

 

 

CN84

 

 

CN85

 

 

CN86

 

 

CN82

 

CN81

 

 

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

 

BLU

BLU

 

BLU

BLU

 

BLU

BLU

 

BLU

BLU

 

BLU

 

BLU

BLU

BLU

 

 

 

21R1

 

 

21R2

 

 

21R3

 

 

21R4

 

 

21RA

 

21RB

 

 

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

C1

COMPRESSOR CAPACITOR(MC1)

SR861

OUTDOOR FAN RELAY

X521

COMPRESSOR CONTACTOR(MC1)

C2

COMPRESSOR CAPACITOR(MC2)

SR863

RELAY (21RB)

X522

COMPRESSOR CONTACTOR(MC2)

C61

OUTDOOR FAN CAPACITOR

SR864

RELAY (21RA)

21RA

SOLENOID COIL (BALANCE)

DSAR

SURGE ABSORBER

SR865

RELAY (D) (21R4)

21RB

SOLENOID COIL (BALANCE)

F61

FUSE(3.15A)

SR866

RELAY (C) (21R3)

21R1

SOLENOID COIL (A)

MC1

COMPRESSOR(INNER PROTECTOR)

SR867

RELAY (B) (21R2)

21R2

SOLENOID COIL (B)

MC2

COMPRESSOR(INNER PROTECTOR)

SR868

RELAY (A) (21R1)

21R3

SOLENOID COIL (C)

MF61

OUTDOOR FAN MOTOR(INNER PROTECTOR) TB1~TB4

TERMINAL BLOCK

21R4

SOLENOID COIL (D)

NR61

SURGE ABSORBER

T61

TRANSFORMER

 

 

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

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

3.Symbols below indicate.

/: Terminal block,

: Connector

4A73VB-MUX

8 REFRIGERANT SYSTEM DIAGRAM

Unit : mm

MUX-2A28VB

INDOOR UNIT

OUTDOOR UNIT

UNIT A

UNIT B

Room temperature

thermistor

Refrigerant pipe

Solenoid

 

valve

 

RT11

 

[9.52

 

Strainer 21R

 

 

(With insulation)

 

 

 

#100

 

Indoor

Stop valve

Capillary tube

Muffler

heat

with service port

[3.0 x [1.4 x 1000

 

exchanger

 

 

 

 

Flared connection

 

 

Indoor coil

Solenoid valve

Compressor

 

21R1

 

thermistor

 

 

 

 

 

RT12

 

 

 

 

 

 

 

Strainer

Outdoor

 

Refrigerant pipe

Stop

Capillary tube

#100

Room

[6.35

valve

[3.0 x [1.4 x 400

 

heat

(With insulation)

 

 

Capillary tube

exchanger

temperature

 

 

 

[3.0 x [1.6 x 900

 

 

 

 

thermistor

Refrigerant pipe

 

 

 

 

 

 

 

RT11

[9.52

 

 

 

 

 

(With insulation)

 

 

 

 

Indoor

 

Stop valve

heat

 

 

with service port

exchanger

 

Flared connection

 

 

 

 

 

 

 

 

Solenoid valve

 

 

 

21R2

Indoor coil

 

 

 

thermistor

Refrigerant pipe

Stop

Capillary tube

RT12

[6.35

valve

[3.0 x [1.4 x 400

(With insulation)

Refrigerant flow in cooling

MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Indoor unit A

Indoor unit B

Max. length difference 10m

Outdoor unit

MUX-2A28VB

Additional piping max. length 15m

ADDITIONAL REFRIGERANT CHARGE (R410A:g)

UNIT No.

Outdoor unit

 

 

 

 

 

 

Refrigerant piping length (one way)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

precharged

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

 

 

 

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

A unit + B unit

900g

0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

150

160

170

180

190

200

PIPING PREPARATION

1 Table below shows the specifications of pipes commercially available.

UNIT No.

Pipe

Outside diameter

Insulation

Insulation material

mm

thickness

 

 

 

A and B UNIT

For liquid

6.35

8 mm

Heat resisting foam plastic

 

 

 

 

For gas

9.52

8 mm

0.045 specific gravity

 

 

 

 

 

 

2 Ensure that the 2 refrigerant pipes are well insulated to prevent condensation. 3 Refrigerant bending radius must be 10cm or more.

21

Unit : mm

MUX-2A59VB

INDOOR UNIT

OUTDOOR UNIT

UNIT A

UNIT B

Room temperature thermistor RT11

Indoor heat exchanger

Indoor coil

thermistor

RT12

Room

temperature

thermistor

RT11

Indoor

heat

exchanger

Indoor coil thermistor RT12

Refrigerant pipe [9.52

(With insulation)

 

Stop valve

 

Muffler

 

 

with service port

 

 

 

Flared connection

 

 

 

 

 

Stop valve

Compressor(A)

 

 

 

 

 

Refrigerant pipe

Capillary tube

Strainer

Outdoor

[6.35

[3.0 x [1.4 x 850

#100

(With insulation)

 

 

 

heat

 

 

 

 

Refrigerant pipe

 

 

 

exchanger

 

 

 

 

[9.52

 

 

 

 

(With insulation)

 

 

Muffler

 

 

Stop valve

 

 

 

 

with

 

 

 

Flared connection

service port

 

 

 

 

 

 

 

 

 

Compressor(B)

 

Refrigerant pipe

Stop valve

Capillary tube

Strainer

 

[6.35

 

[3.0 x [1.4 x 1100

#100

 

(With insulation)

 

 

 

 

Refrigerant flow in cooling

22

MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Indoor unit A

Indoor unit B

LA

H

LB

H

Outdoor unit

MUX-2A59VB

 

UNIT No.

 

Pipe length

Height difference (H)

No. of bends

 

 

 

 

 

 

Max.

A

LA

15m

10m

10

limits

B

LB

15m

10m

10

 

 

 

 

 

 

 

ADDITIONAL REFRIGERANT CHARGE (R410A:g)

 

 

Outdoor unit

 

 

Refrigerant piping length (one way)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

unit

precharged

7m

8m

9m

 

10m

 

11m

 

12m

 

13m

 

 

14m

15m

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1000g

0

20

40

 

60

 

80

 

100

 

120

 

 

140

160

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor unit

 

 

Refrigerant piping length (one way,2 unit total)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

unit

precharged

7m

8m

9m

10m

11m

12m

13m

 

14m

15m

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

800g

0

20

40

 

60

 

80

 

100

 

120

 

 

140

160

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PIPING PREPARATION

1Table below shows the specifications of pipes commercially available.

UNIT No.

Pipe

Outside diameter

Insulation

Insulation material

 

mm

thickness

 

 

 

 

 

 

 

 

 

 

 

 

A unit

For liquid

6.35

8mm

 

 

 

 

 

For gas

9.52

8mm

Heat resisting foam plastic

 

 

 

 

 

B unit

For liquid

6.35

8mm

0.045 specific gravity

 

 

 

 

 

For gas

9.52

8mm

 

 

 

 

 

 

 

 

2Ensure that the 2 refrigerant pipes are well insulated to prevent condensation. 3Refrigerant bending radius must be 10cm or more.

23

 

Unit : mm

 

MUX-3A60VB

INDOOR UNIT

OUTDOOR UNIT

Room

 

temperature

 

thermistor

Refrigerant pipe

RT11

[9.52

 

(With insulation)

 

Indoor

 

Stop valve

 

 

Muffler

 

UNIT A

heat

 

with service port

 

 

 

 

exchanger

 

 

 

 

 

 

 

 

 

Flared connection

 

 

 

 

 

 

 

Indoor coil

 

Stop valve

Compressor(A)

 

 

 

thermistor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RT12

 

 

 

 

 

 

 

 

 

Refrigerant pipe

 

Capillary tube

Strainer

 

Outdoor

 

Room

[6.35

 

[3.0 x [1.4 x 950

 

#100

 

 

(With insulation)

 

 

 

 

 

heat

 

temperature

Stop valve

 

 

 

 

 

 

 

 

 

 

 

 

Solenoid

exchanger

 

thermistor

Refrigerant pipe

with

 

 

 

 

RT11

[9.52

service port

Strainer

valve

 

 

(With insulation)

21RB

Muffler

 

 

 

 

 

 

#100

 

 

Indoor

 

 

 

Capillary tube

 

 

UNIT B

heat

 

 

 

[3.0 x [1.4 x 1000

 

 

exchanger

Flared connection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stop

Solenoid valve

 

 

 

 

 

 

 

valve

21R3

 

 

 

 

 

Indoor coil

 

 

 

Compressor(B,C)

 

 

 

 

 

 

 

 

 

 

thermistor

Refrigerant pipe

 

Capillary tube

 

 

 

 

 

RT12

 

 

 

 

 

 

[6.35

 

[3.0 x [1.6 x 900

 

 

 

 

 

Room

 

 

 

 

 

 

(With insulation)

 

 

 

 

 

 

 

Capillary tube

Strainer

 

 

temperature

 

 

 

 

 

 

[3.0 x [1.6 x 900

#100

 

 

 

thermistor

Refrigerant pipe

 

 

 

 

 

 

 

 

 

RT11

[9.52

 

 

 

 

 

 

 

 

(With insulation)

 

 

 

 

 

 

 

Indoor

 

Stop valve

 

 

 

 

UNIT C

heat

 

with

 

 

 

 

 

exchanger

Flared connection

service port

 

 

Refrigerant flow in cooling

 

 

 

 

 

 

 

 

 

Stop

Solenoid valve

 

valve

21R4

Indoor coil

 

 

thermistor

Refrigerant pipe

Capillary tube

RT12

[6.35

[3.0 x [1.6 x 900

 

(With insulation)

 

 

24

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