Mitsubishi MUX-A22WV Service Manual

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Page 1

SERVICE MANUAL

HFC

utilized

R410A

SPLIT-TYPE, AIR CONDITIONER

Multi system type Model

No. OB318

MUX-A22WV -

Indication of model name

NOTE:

•This manual describes technical data of outdoor unit.

•As for indoor unit MSC-A07WV - or MSC-A12WV - , refer to the service manual OB307 REVISED EDITION-A.

E1E1

CONTENTS

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

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

3. INDOOR / OUTDOOR CORRESPONDENCE TABLE ···························5

4. SPECIFICATION·················································5

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

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

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

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

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

10. MICROPROCESSOR CONTROL ····················15

11. TROUBLESHOOTING······································15

12. DISASSEMBLY INSTRUCTIONS·····················21

13. PARTS LIST······················································23

Page 2

Refrigerating

oil

Refrigerant

New refrigerant

R410A

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

Pseudo-azeotropic refrigerant

Not included

A1/A1

72.6

-51.4

1.557 64

Non combustible

1730

From liquid phase in cylinder

Possible

Incompatible oil

Non Non

Previous refrigerant

R22

R22 (100%)

Single refrigerant

Included

86.5

-40.8

0.94

44.4

Non combustible

0.055 1700

Gas phase

Possible

Compatible oil

Light yellow

Non

Refrigerant Composition (Ratio) Refrigerant handling Chlorine Safety group (ASHRAE) Molecular weight Boiling point (:) Steam pressure [25:](Mpa) Saturated steam density [25:](Kg/K) Combustibility ODP w1 GWP w2 Refrigerant charge method Additional charge on leakage Kind Color Smell

w1:Ozone Destruction Parameter : based on CFC-11 w2 :Global Warmth Parameter : based on CO

New Specification Current Specification

The incompatible refrigerating oil easily separates from refrigerant and is in the upper layer inside the suction muffler. Raising position of the oil back hole enables to back the refrigerating oil of the upper layer to flow back to the compressor.

Since refrigerant and refrigerating oil are compatible each, refrigerating oil backs to the compressor through the lower position oil back hole.

Compressor

Suction muffler

Oil back hole

Refrigerating oil

Refrigerant

Compressor

Suction muffler

Oil back hole

Refrigerating oil /Refrigerant

Compressor

TECHNICAL CHANGES

INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT

• This room air conditioner adopts an 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. 1 As 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.

2 Take 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.

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

piping.)

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

composition change.

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/ff[Gauge])

Page 3

Conversion chart of refrigerant temperature and pressure

R410A tools Can R22 tools be used?

Gas leak detector

R410A has high pressures beyond the measurement range of existing gauges. Port diameters have been changed to prevent any other refrigerant from being charged into the unit.

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

Dedicated for HFC refrigerant.

6.35 mm and 9.52 mm

Description

Clamp bar hole has been enlarged to reinforce the spring strength in the tool. Provided for flaring work (to be used with R22 flare tool).

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

It is difficult to measure R410A with a charging cylinder because the refrigerant bubbles due to high pressure and high-speed vaporization

Yes

New

Gauge manifold

Charge hose

Torque wrench

Flare tool Flare gauge

Vacuum pump adapter

Electronic scale for refrigerant charging

No : Not Substitutable for R410A Yes : Substitutable for R410A

No 12.7 mm

Wall thickness

Outside diameter

Pipe

For liquid For gas

6.35

9.52

12.7

0.8 mm

Heat resisting foam plastic Specific gravity 0.045 Thickness 8 mm

Insulation material

(MPa [Gauge])

4.0

3.5

3.0

2.5

2.0

1.5

R410A R22

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

international system of units(SI unit system).

1.0

0.5

Saturated liquid pressure

0.0

-0.5

-30 -20 -10 0 10 20

40 50 60

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

(:)

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.

2.Refrigerant piping

1 Specifications

Use the refrigerant pipes that meet the following specifications.

• 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.

2 Flaring 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”.

Page 4

Pipe diameter

Air outlet

Drain outlet

Air inlet

Piping

Drainage hose

(Back and side)

Dimension of flare nut

6.35

9.52

12.7

R410A

17 22 26

R22

17 22 24

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 refrigerating 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.

Union

Stop valve

Indoor unit

Refrigerant gas cylinder operating valve

Liquid pipe Gas pipe

Service port

Outdoor unit

PART NAMES AND FUNCTIONS

OUTDOOR UNIT

MUX-A22WV-

Gauge manifold valve (for R410A)

Charge hose (for R410A)

Refrigerant gas cylinder for R410A with siphon

Refrigerant (liquid)

Electronic scale for refrigerant charging

Page 5

MUX-A22WV- E1

Combination

of the

connectable

indoor units

OUTDOOR UNIT

MSC-A12WV- E1

MSC-A07WV- E1

INDOOR / OUTDOOR CORRESPONDENCE TABLE3

MUX-A22WV -

Capacity

Electrical

Compressor

Fan

Special

SPECIFICATION

Outdoor unit power supply

Capacity Dehumidification Outdoor air flow Power outlet Running current Power input Auxiliary heater Power factor

data

Starting current Compressor motor current Fan motor current

Coefficient of performance (C.O.P)

Model Output Winding resistance (at 20:) Model Winding

motor

resistance (at 20:) Dimensions WOHOD Weight Sound level Fan speed Fan speed regulator Refrigerant filling

remarks

capacity (R410A) Refrigerating oil (Model)

Outdoor model

Function

Indoor unit No

MUX-A22WV -

Cooling

Single phase

230V,50Hz

R/h

K /h

A A

A(kW)

A A A

rpm

kg cc

Single

3.5

1.4

5.73

1,280

97.1

5.02

2.65

Single B or C

2.4

0.9

3.64 815

97.3

2.99

2.82

MC1 : RN145VHSHT, MC2 : RN092VHSHT

MC1 : 1,000, MC2 : 600

MC1 : , MC2 :

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

Double

A+B or A+C

3.5+2.4

1.4+0.9 2,460

8.92

1,975

—

96.3 48

8.01

0.57

2.88

C-R 2.43 C-S 3.80

RA6V60-GA

WHT-BLK 90 BLK-RED 146 840O640O330

67 52

730

0.85 (Room A)

0.85 (Room B+C)

Double

1.45O2

C-R 3.87 C-S 0.14

B+C

0.4

3.69 830

97.8

2.99

3.22

Triple

A+B+C

3.4+1.45O2

1.4+0.4

8.84

1,980

97.4

8.01

3.01

NOTE: Test conditions are based on ISO 5151.

Cooling : Indoor DB27°C WB19°C

Outdoor DB35°C WB24°C Indoor-Outdoor piping length 5m w Reference value

Page 6

NOISE CRITERIA CURVES5

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 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions.

Cooling :DB35: WB24:

COOL

FUNCTION

SPL(dB(A)) LINE

MUX-A22WV - E1

500

840 61

264

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)

Liquid refrigerant pipe joint Refrigerant pipe (flared) {6.35

121

438

Air in

Air out

Air in

273

100

125

320

330

640

360

5050505050

Drainage 3holes {33

}

C UNIT

} }

C or B unit {9.52 A unit {12.7

MUX-A22WV-

OUTLINES AND DIMENSIONS

OUTDOOR UNIT

Unit: mm

Page 7

123

213

123123123

21R421R3

NR61

T61

C61

LD1

WHT

OUTDOOR CONTROL P.C. BOARD

BRN

BLU

BRN

BLU

BRN

BLU

X522

X521

BLK

SR865

SR866

SR863

SR861

LD2

RED

BLK

WHT

652341

BRN BLU

BLU

TB4

CN86

CN85

CN81

CN91

CN90

TB3

TB2

X521

BLU 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

TO INDOOR

UNIT A

CONNECTING

12V

MC2

TO INDOOR

UNIT C

CONNECTING

12V

MF61

MC1

BLK

TB1

POWER SUPPLY

~/N

230V

50Hz

DSAR

BRN

WIRING DIAGRAM

MUX-A22WV -

OUTDOOR UNIT

MODEL WIRING DIAGRAM

VG79B520H01

TERMINAL BLOCK

TRANSFORMER

COMPRESSOR CONTACTOR(MC1)

COMPRESSOR CONTACTOR(MC2)

SOLENOID COIL

SOLENOID COIL (B)

SOLENOID COIL (C)

T61

SYMBOL

TB2~TB4

NAME NAME

X521

X522

21RB

21R3

21R4

OUTDOOR FAN MOTOR(INNER PROTECTOR)

SURGE ABSORBER

OUTDOOR FAN RELAY

MF61

NR61

SYMBOL

NAME

SYMBOL

SR861

COMPRESSOR CAPACITOR(MC1)

COMPRESSOR CAPACITOR(MC2)

OUTDOOR FAN CAPACITOR

C61

RELAY (21RB)

RELAY (C) (21R4)

RELAY (B) (21R3)

TERMINAL BLOCK

SR863

SURGE ABSORBER

DSAR

TB1

SR865

SR866

FUSE(3.15A)

COMPRESSOR(INNER PROTECTOR)

F61

MC1

MC2

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

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

/: Terminal block, : Connector

3. Symbols below indicate.

Page 8

OUTDOOR UNIT

INDOOR UNIT

UNIT A

Indoor

heat

exchanger

Indoor coil thermistor RT12

Room temperature thermistor RT11

UNIT B

Indoor

heat

exchanger

Outdoor

heat

exchanger

Indoor coil thermistor RT12

Room temperature thermistor RT11

(With insulation)

Refrigerant pipe

12.7

(With insulation)

Refrigerant pipe

9.52

(With insulation)

Refrigerant pipe

6.35

Flared connection

(With insulation)

Refrigerant pipe

6.35

Flared connection

Refrigerant pipe

9.52

(With insulation)

Refrigerant pipe

6.35

Flared connection

Stop valve with service port

Stop valve

Solenoid valve 21R3

Solenoid valve 21R4

Solenoid valve 21RB

Stop valve with service port

Capillary tube CT1

Capillary tube CT3

Capillary tube CT4

Capillary tube CT2

Capillary tube CT5

Compressor(A)

Compressor(B,C)

Refrigerant flow in cooling

UNIT C

Indoor

heat

exchanger

Indoor coil thermistor RT12

Room temperature thermistor RT11

Stop valve

Strainer #100

Muffler

[3.0 x [1.6 x 900

[3.0 x [1.4 x 1000

[3.0 x [1.6 x 900

[3.0 x [1.6 x700

[3.0 x [1.6 x 900

Strainer #100

Indoor unit A

B HLC

Indoor unit B

Indoor unit C

Outdoor unit

MUX-A22WV - E1

REFRIGERANT SYSTEM DIAGRAM

Unit : mm

MUX-A22WV-

MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Page 9

Max. limits

UNIT No.

Unit A Unit B

Unit C

L LB

Pipe length

15m 15m

15m

ADDITIONAL REFRIGERANT CHARGE (R410A:g)

Refrigerant piping length (one way)

Refrigerant piping length (one way, 2 unit total)

Unit A

Unit B + Unit C

Outdoor unit

precharged

850g

Outdoor unit

precharged

850g

10m11m12m13m14m15m16m17m18m19m20m21m22m23m24m25m26m27m28m29m30

0 102030405060

8m 20

PIPING PREPARATION

1Table below shows the specifications of pipes commercially available.

UNIT No.

Unit A

Unit B and Unit C

Pipe

For liquid

For gas

For liquid

For gas

Outside diameter

6.35

12.7

6.35

9.52

Height difference (H)

10m

Total

30m

10m6011m

70 80 90 100 110 120 130 140 150 160 170 180 190 200

Insulation thickness

8mm 8mm 8mm 8mm

10m 10m

12m

100

13m

120

Insulation material

Heat resisting foam plastic

0.045 specific gravity

No. of bends

10 10 10

14m

140

Total

15m

160

2Ensure that the 2 refrigerant pipes are well insulated to prevent condensation. 3Refrigerant bending radius must be 100mm or more.

MUX-A22WV -

The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions, since operating conditions vary according to the areas where these units are installed. The following information has been provided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.

PERFORMANCE CURVES

(1) GUARANTEED VOLTAGE

198~264V, 50Hz

(2) AIR FLOW

Air flow should be set at MAX.

(3) MAIN READINGS

(1) Indoor intake air wet-bulb temperature : °CWB (2) Indoor outlet air wet-bulb temperature : °CWB (3) Outdoor intake air dry-bulb temperature : °CDB (4) Total input: W

Indoor air wet/dry-bulb temperature difference on the left side of the chart on page 10 shows the difference between the indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your reference at service.

Page 10

How to measure the indoor air wet-bulb/dry-bulb temperature difference

Single operation (Unit B or C)

Outdoor unit current (A)

2.0

2.5

3.0

3.5

4.0

230V

1.3

1.1

1.0

0.9

0.8

0.7

Outdoor low pressure (kgf/F[Gauge])

1.2

(kgf/F[Gauge])(MPa[Gauge])

Ambient temperature(˚C)

Ambient humidity(%)

20 50

2560 30

(˚C)

(%)

Ambient temperature(˚C)

Ambient humidity(%)

20 50

2560 30

(˚C)

(%)

1.2

1.0

0.9

0.8

0.7

0.6

(kgf/F[Gauge])(MPa[Gauge])

Outdoor low pressure (kgf/F[Gauge])

1.1

Outdoor unit current (A)

Single operation (Unit A)

4.0

5.0

6.0

7.0

230V

Ambient temperature(˚C)

Ambient humidity(%)

20 50

2560 30

(˚C)

(%)

Ambient temperature(˚C)

Ambient humidity(%)

20 50

2560 30

(˚C)

(%)

1. Attach at least 2 sets of wet-and dry-bulb thermometers to the indoor air intake as shown in the figure, and at least 2 sets of wet-and dry-bulb thermometers to the indoor air outlet. The thermometers must be attached to the position where air speed is high.

2. Attach at least 2 sets of wet-and dry-bulb thermometers to the outdoor air intake. Cover the thermometers to prevent direct rays of the sun.

3. Check that the air filter is cleaned.

4. Open windows and doors of room.

5. Press the EMERGENCY OPERATION switch once to start the EMERGENCY COOL MODE.

6. When system stabilizes after more than 15 minutes, measure temperature and take an average temperature.

7. 10 minutes later, measure temperature again and check that the temperature does not change.

INDOOR UNIT

Wet-and dry-bulb thermometers

9-1.CAPACITY AND THE INPUT CURVES

(ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)

9.4

10.2

8.6

9.4

7.8

8.5

7.1

7.7

6.3

6.9

5.6

6.1

Indoor air WB temperature

difference (deg.)

B or C

OUTDOOR UNIT

Wet-and dry-bulb thermometers

MUX-A22WV- E1

(MSC-A07WV- E1 )

(MSC-A12WV- E1 )

9-2.OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

COOL operation

① Both indoor and outdoor unit are under

same temperature/humidity condition.

➁ Air flow should be set at MAX. ③ 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/ff[Gauge] )

MUX-A22WV-

Dry-bulb temperature Relative humidity (%)

20 25 30

50 60 70

Page 11

PERFORMANCE DATA

21 18 4.11 2.25 0.55 1056 3.94 2.15 0.55 1109 3.78 2.07 0.55 1162 3.64 1.99 0.55 1214 21 20 4.29 1.83 0.43 1109 4.11 1.76 0.43 1175 3.99 1.70 0.43 1201 3.85 1.64 0.43 1254 22 18 4.11 2.41 0.59 1056 3.94 2.31 0.59 1109 3.78 2.22 0.59 1162 3.64 2.14 0.59 1214 22 20 4.29 2.00 0.47 1109 4.11 1.92 0.47 1175 3.99 1.86 0.47 1201 3.85 1.80 0.47 1254 22 22 4.46 1.55 0.35 1148 4.31 1.49 0.35 1221 4.20 1.46 0.35 1254 4.03 1.40 0.35 1307 23 18 4.11 2.58 0.63 1056 3.94 2.47 0.63 1109 3.78 2.37 0.63 1162 3.64 2.28 0.63 1214 23 20 4.29 2.17 0.51 1109 4.11 2.09 0.51 1175 3.99 2.02 0.51 1201 3.85 1.95 0.51 1254 23 22 4.46 1.73 0.39 1148 4.31 1.67 0.39 1221 4.20 1.63 0.39 1254 4.03 1.56 0.39 1307 24 18 4.11 2.74 0.67 1056 3.94 2.63 0.67 1109 3.78 2.52 0.67 1162 3.64 2.43 0.67 1214 24 20 4.29 2.35 0.55 1109 4.11 2.25 0.55 1175 3.99 2.18 0.55 1201 3.85 2.11 0.55 1254 24 22 4.46 1.91 0.43 1148 4.31 1.84 0.43 1221 4.20 1.79 0.43 1254 4.03 1.72 0.43 1307 24 24 4.69 1.44 0.31 1201 4.52 1.39 0.31 1267 4.41 1.35 0.31 1307 4.27 1.31 0.31 1373 25 18 4.11 2.91 0.71 1056 3.94 2.78 0.71 1109 3.78 2.67 0.71 1162 3.64 2.57 0.71 1214 25 20 4.29 2.52 0.59 1109 4.11 2.41 0.59 1175 3.99 2.34 0.59 1201 3.85 2.26 0.59 1254 25 22 4.46 2.08 0.47 1148 4.31 2.01 0.47 1221 4.20 1.96 0.47 1254 4.03 1.88 0.47 1307 25 24 4.69 1.63 0.35 1201 4.52 1.57 0.35 1267 4.41 1.53 0.35 1307 4.27 1.48 0.35 1373 26 18 4.11 3.07 0.75 1056 3.94 2.94 0.75 1109 3.78 2.82 0.75 1162 3.64 2.72 0.75 1214 26 20 4.29 2.69 0.63 1109 4.11 2.58 0.63 1175 3.99 2.50 0.63 1201 3.85 2.41 0.63 1254 26 22 4.46 2.26 0.51 1148 4.31 2.18 0.51 1221 4.20 2.13 0.51 1254 4.03 2.04 0.51 1307 26 24 4.69 1.82 0.39 1201 4.52 1.75 0.39 1267 4.41 1.71 0.39 1307 4.27 1.65 0.39 1373 26 26 4.83 1.29 0.27 1267 4.69 1.25 0.27 1333 4.62 1.23 0.27 1373 4.48 1.20 0.27 1412 27 18 4.11 3.24 0.79 1056 3.94 3.10 0.79 1109 3.78 2.97 0.79 1162 3.64 2.86 0.79 1214 27 20 4.29 2.86 0.67 1109 4.11 2.74 0.67 1175 3.99 2.66 0.67 1201 3.85 2.57 0.67 1254 27 22 4.46 2.44 0.55 1148 4.31 2.35 0.55 1221 4.20 2.30 0.55 1254 4.03 2.20 0.55 1307 27 24 4.69 2.00 0.43 1201 4.52 1.93 0.43 1267 4.41 1.88 0.43 1307 4.27 1.82 0.43 1373 27 26 4.83 1.48 0.31 1267 4.69 1.44 0.31 1333 4.62 1.42 0.31 1373 4.48 1.38 0.31 1412 28 18 4.11 3.40 0.83 1056 3.94 3.26 0.83 1109 3.78 3.13 0.83 1162 3.64 3.01 0.83 1214 28 20 4.29 3.03 0.71 1109 4.11 2.91 0.71 1175 3.99 2.82 0.71 1201 3.85 2.72 0.71 1254 28 22 4.46 2.62 0.59 1148 4.31 2.53 0.59 1221 4.20 2.47 0.59 1254 4.03 2.36 0.59 1307 28 24 4.69 2.19 0.47 1201 4.52 2.11 0.47 1267 4.41 2.06 0.47 1307 4.27 1.99 0.47 1373 28 26 4.83 1.68 0.35 1267 4.69 1.63 0.35 1333 4.62 1.60 0.35 1373 4.48 1.55 0.35 1412 29 18 4.11 3.57 0.87 1056 3.94 3.41 0.87 1109 3.78 3.28 0.87 1162 3.64 3.16 0.87 1214 29 20 4.29 3.20 0.75 1109 4.11 3.07 0.75 1175 3.99 2.98 0.75 1201 3.85 2.88 0.75 1254 29 22 4.46 2.80 0.63 1148 4.31 2.70 0.63 1221 4.20 2.63 0.63 1254 4.03 2.52 0.63 1307 29 24 4.69 2.38 0.51 1201 4.52 2.29 0.51 1267 4.41 2.24 0.51 1307 4.27 2.16 0.51 1373 29 26 4.83 1.87 0.39 1267 4.69 1.82 0.39 1333 4.62 1.79 0.39 1373 4.48 1.73 0.39 1412 30 18 4.11 3.73 0.91 1056 3.94 3.57 0.91 1109 3.78 3.43 0.91 1162 3.64 3.30 0.91 1214 30 20 4.29 3.37 0.79 1109 4.11 3.24 0.79 1175 3.99 3.14 0.79 1201 3.85 3.03 0.79 1254 30 22 4.46 2.98 0.67 1148 4.31 2.87 0.67 1221 4.20 2.80 0.67 1254 4.03 2.68 0.67 1307 30 24 4.69 2.57 0.55 1201 4.52 2.47 0.55 1267 4.41 2.41 0.55 1307 4.27 2.34 0.55 1373 30 26 4.83 2.06 0.43 1267 4.69 2.00 0.43 1333 4.62 1.97 0.43 1373 4.48 1.91 0.43 1412 31 18 4.11 3.89 0.95 1056 3.94 3.73 0.95 1109 3.78 3.58 0.95 1162 3.64 3.45 0.95 1214 31 20 4.29 3.55 0.83 1109 4.11 3.40 0.83 1175 3.99 3.30 0.83 1201 3.85 3.18 0.83 1254 31 22 4.46 3.15 0.71 1148 4.31 3.04 0.71 1221 4.20 2.97 0.71 1254 4.03 2.85 0.71 1307 31 24 4.69 2.75 0.59 1201 4.52 2.65 0.59 1267 4.41 2.59 0.59 1307 4.27 2.51 0.59 1373 31 26 4.83 2.26 0.47 1267 4.69 2.19 0.47 1333 4.62 2.16 0.47 1373 4.48 2.09 0.47 1412 32 18 4.11 4.06 0.99 1056 3.94 3.89 0.99 1109 3.78 3.73 0.99 1162 3.64 3.59 0.99 1214 32 20 4.29 3.72 0.87 1109 4.11 3.57 0.87 1175 3.99 3.46 0.87 1201 3.85 3.34 0.87 1254 32 22 4.46 3.33 0.75 1148 4.31 3.22 0.75 1221 4.20 3.14 0.75 1254 4.03 3.01 0.75 1307 32 24 4.69 2.94 0.63 1201 4.52 2.83 0.63 1267 4.41 2.77 0.63 1307 4.27 2.68 0.63 1373 32 26 4.83 2.45 0.51 1267 4.69 2.38 0.51 1333 4.62 2.34 0.51 1373 4.48 2.27 0.51 1412

CAPACITY : 3.5(kW) SHF : 0.73 INPUT : 1320(W)

OUTDOOR DB(:)

INDOOR

25 27 30

DB(:)

WB(:)

SHC

SHF

INPUT

SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

COOL operation (230V)

MSC-A12WV - (Single : Room A) : MUX-A22WV -

NOTE Q :Total capacity (kW) SHF :Sensible heat factor DB :Dry-bulb temperature

SHC :Sensible heat capacity (kW) INPUT :Total power input (W) WB :Wet-bulb temperature

E1E1

Page 12

PERFORMANCE DATA

21 18 3.43 1.88 0.55 1294 3.15 1.72 0.55 1373 3.03 1.66 0.55 1399 21 20 3.61 1.54 0.43 1346 3.36 1.43 0.43 1412 3.24 1.38 0.43 1452 22 18 3.43 2.01 0.59 1294 3.15 1.85 0.59 1373 3.03 1.78 0.59 1399 22 20 3.61 1.68 0.47 1346 3.36 1.57 0.47 1412 3.24 1.51 0.47 1452 22 22 3.82 1.32 0.35 1399 3.57 1.24 0.35 1478 3.45 1.20 0.35 1505 23 18 3.43 2.15 0.63 1294 3.15 1.98 0.63 1373 3.03 1.90 0.63 1399 23 20 3.61 1.83 0.51 1346 3.36 1.70 0.51 1412 3.24 1.64 0.51 1452 23 22 3.82 1.48 0.39 1399 3.57 1.38 0.39 1478 3.45 1.33 0.39 1505 24 18 3.43 2.29 0.67 1294 3.15 2.10 0.67 1373 3.03 2.02 0.67 1399 24 20 3.61 1.97 0.55 1346 3.36 1.84 0.55 1412 3.24 1.77 0.55 1452 24 22 3.82 1.63 0.43 1399 3.57 1.52 0.43 1478 3.45 1.47 0.43 1505 24 24 4.03 1.24 0.31 1452 3.78 1.16 0.31 1518 3.68 1.13 0.31 1551 25 18 3.43 2.43 0.71 1294 3.15 2.23 0.71 1373 3.03 2.14 0.71 1399 25 20 3.61 2.12 0.59 1346 3.36 1.97 0.59 1412 3.24 1.90 0.59 1452 25 22 3.82 1.78 0.47 1399 3.57 1.67 0.47 1478 3.45 1.61 0.47 1505 25 24 4.03 1.40 0.35 1452 3.78 1.31 0.35 1518 3.68 1.28 0.35 1551 26 18 3.43 2.56 0.75 1294 3.15 2.35 0.75 1373 3.03 2.26 0.75 1399 26 20 3.61 2.26 0.63 1346 3.36 2.11 0.63 1412 3.24 2.03 0.63 1452 26 22 3.82 1.93 0.51 1399 3.57 1.81 0.51 1478 3.45 1.75 0.51 1505 26 24 4.03 1.56 0.39 1452 3.78 1.46 0.39 1518 3.68 1.42 0.39 1551 26 26 4.24 1.13 0.27 1505 3.99 1.07 0.27 1571 3.87 1.03 0.27 1604 27 18 3.43 2.70 0.79 1294 3.15 2.48 0.79 1373 3.03 2.38 0.79 1399 27 20 3.61 2.40 0.67 1346 3.36 2.24 0.67 1412 3.24 2.16 0.67 1452 27 22 3.82 2.09 0.55 1399 3.57 1.95 0.55 1478 3.45 1.89 0.55 1505 27 24 4.03 1.72 0.43 1452 3.78 1.61 0.43 1518 3.68 1.57 0.43 1551 27 26 4.24 1.30 0.31 1505 3.99 1.22 0.31 1571 3.87 1.19 0.31 1604 28 18 3.43 2.84 0.83 1294 3.15 2.61 0.83 1373 3.03 2.50 0.83 1399 28 20 3.61 2.55 0.71 1346 3.36 2.38 0.71 1412 3.24 2.29 0.71 1452 28 22 3.82 2.24 0.59 1399 3.57 2.10 0.59 1478 3.45 2.02 0.59 1505 28 24 4.03 1.88 0.47 1452 3.78 1.77 0.47 1518 3.68 1.72 0.47 1551 28 26 4.24 1.47 0.35 1505 3.99 1.38 0.35 1571 3.87 1.34 0.35 1604 29 18 3.43 2.97 0.87 1294 3.15 2.73 0.87 1373 3.03 2.62 0.87 1399 29 20 3.61 2.69 0.75 1346 3.36 2.51 0.75 1412 3.24 2.42 0.75 1452 29 22 3.82 2.39 0.63 1399 3.57 2.24 0.63 1478 3.45 2.16 0.63 1505 29 24 4.03 2.04 0.51 1452 3.78 1.92 0.51 1518 3.68 1.86 0.51 1551 29 26 4.24 1.64 0.39 1505 3.99 1.54 0.39 1571 3.87 1.50 0.39 1604 30 18 3.43 3.11 0.91 1294 3.15 2.86 0.91 1373 3.03 2.75 0.91 1399 30 20 3.61 2.84 0.79 1346 3.36 2.64 0.79 1412 3.24 2.55 0.79 1452 30 22 3.82 2.54 0.67 1399 3.57 2.38 0.67 1478 3.45 2.30 0.67 1505 30 24 4.03 2.20 0.55 1452 3.78 2.07 0.55 1518 3.68 2.01 0.55 1551 30 26 4.24 1.81 0.43 1505 3.99 1.70 0.43 1571 3.87 1.65 0.43 1604 31 18 3.43 3.25 0.95 1294 3.15 2.98 0.95 1373 3.03 2.87 0.95 1399 31 20 3.61 2.98 0.83 1346 3.36 2.78 0.83 1412 3.24 2.68 0.83 1452 31 22 3.82 2.70 0.71 1399 3.57 2.52 0.71 1478 3.45 2.44 0.71 1505 31 24 4.03 2.36 0.59 1452 3.78 2.22 0.59 1518 3.68 2.16 0.59 1551 31 26 4.24 1.98 0.47 1505 3.99 1.86 0.47 1571 3.87 1.81 0.47 1604 32 18 3.43 3.39 0.99 1294 3.15 3.11 0.99 1373 3.03 2.99 0.99 1399 32 20 3.61 3.13 0.87 1346 3.36 2.91 0.87 1412 3.24 2.81 0.87 1452 32 22 3.82 2.85 0.75 1399 3.57 2.67 0.75 1478 3.45 2.58 0.75 1505 32 24 4.03 2.52 0.63 1452 3.78 2.37 0.63 1518 3.68 2.30 0.63 1551 32 26 4.24 2.15 0.51 1505 3.99 2.02 0.51 1571 3.87 1.96 0.51 1604

CAPACITY : 3.5(kW) SHF : 0.73 INPUT : 1320(W)

OUTDOOR DB(:)

INDOOR

DB(:)

WB(:)

SHC

SHF

INPUT

SHC SHF INPUT Q SHC SHF INPUT

35 40 43

COOL operation (230V)

MSC-A12WV - (Single : Room A) : MUX-A22WV -

NOTE Q :Total capacity (kW) SHF :Sensible heat factor DB :Dry-bulb temperature

SHC :Sensible heat capacity (kW) INPUT :Total power input (W) WB :Wet-bulb temperature

E1E1

Page 13

PERFORMANCE DATA

21 18 2.82 1.58 0.56 680 2.70 1.51 0.56 714 2.59 1.45 0.56 748 2.50 1.40 0.56 782 21 20 2.94 1.29 0.44 714 2.82 1.24 0.44 757 2.74 1.20 0.44 774 2.64 1.16 0.44 808 22 18 2.82 1.69 0.60 680 2.70 1.62 0.60 714 2.59 1.56 0.60 748 2.50 1.50 0.60 782 22 20 2.94 1.41 0.48 714 2.82 1.35 0.48 757 2.74 1.31 0.48 774 2.64 1.27 0.48 808 22 22 3.06 1.10 0.36 740 2.95 1.06 0.36 786 2.88 1.04 0.36 808 2.76 0.99 0.36 842 23 18 2.82 1.80 0.64 680 2.70 1.73 0.64 714 2.59 1.66 0.64 748 2.50 1.60 0.64 782 23 20 2.94 1.53 0.52 714 2.82 1.47 0.52 757 2.74 1.42 0.52 774 2.64 1.37 0.52 808 23 22 3.06 1.22 0.40 740 2.95 1.18 0.40 786 2.88 1.15 0.40 808 2.76 1.10 0.40 842 24 18 2.82 1.92 0.68 680 2.70 1.84 0.68 714 2.59 1.76 0.68 748 2.50 1.70 0.68 782 24 20 2.94 1.65 0.56 714 2.82 1.58 0.56 757 2.74 1.53 0.56 774 2.64 1.48 0.56 808 24 22 3.06 1.35 0.44 740 2.95 1.30 0.44 786 2.88 1.27 0.44 808 2.76 1.21 0.44 842 24 24 3.22 1.03 0.32 774 3.10 0.99 0.32 816 3.02 0.97 0.32 842 2.93 0.94 0.32 884 25 18 2.82 2.03 0.72 680 2.70 1.94 0.72 714 2.59 1.87 0.72 748 2.50 1.80 0.72 782 25 20 2.94 1.76 0.60 714 2.82 1.69 0.60 757 2.74 1.64 0.60 774 2.64 1.58 0.60 808 25 22 3.06 1.47 0.48 740 2.95 1.42 0.48 786 2.88 1.38 0.48 808 2.76 1.32 0.48 842 25 24 3.22 1.16 0.36 774 3.10 1.11 0.36 816 3.02 1.09 0.36 842 2.93 1.05 0.36 884 26 18 2.82 2.14 0.76 680 2.70 2.05 0.76 714 2.59 1.97 0.76 748 2.50 1.90 0.76 782 26 20 2.94 1.88 0.64 714 2.82 1.80 0.64 757 2.74 1.75 0.64 774 2.64 1.69 0.64 808 26 22 3.06 1.59 0.52 740 2.95 1.54 0.52 786 2.88 1.50 0.52 808 2.76 1.44 0.52 842 26 24 3.22 1.29 0.40 774 3.10 1.24 0.40 816 3.02 1.21 0.40 842 2.93 1.17 0.40 884 26 26 3.31 0.93 0.28 816 3.22 0.90 0.28 859 3.17 0.89 0.28 884 3.07 0.86 0.28 910 27 18 2.82 2.26 0.80 680 2.70 2.16 0.80 714 2.59 2.07 0.80 748 2.50 2.00 0.80 782 27 20 2.94 2.00 0.68 714 2.82 1.92 0.68 757 2.74 1.86 0.68 774 2.64 1.80 0.68 808 27 22 3.06 1.71 0.56 740 2.95 1.65 0.56 786 2.88 1.61 0.56 808 2.76 1.55 0.56 842 27 24 3.22 1.42 0.44 774 3.10 1.36 0.44 816 3.02 1.33 0.44 842 2.93 1.29 0.44 884 27 26 3.31 1.06 0.32 816 3.22 1.03 0.32 859 3.17 1.01 0.32 884 3.07 0.98 0.32 910 28 18 2.82 2.37 0.84 680 2.70 2.27 0.84 714 2.59 2.18 0.84 748 2.50 2.10 0.84 782 28 20 2.94 2.12 0.72 714 2.82 2.03 0.72 757 2.74 1.97 0.72 774 2.64 1.90 0.72 808 28 22 3.06 1.84 0.60 740 2.95 1.77 0.60 786 2.88 1.73 0.60 808 2.76 1.66 0.60 842 28 24 3.22 1.54 0.48 774 3.10 1.49 0.48 816 3.02 1.45 0.48 842 2.93 1.41 0.48 884 28 26 3.31 1.19 0.36 816 3.22 1.16 0.36 859 3.17 1.14 0.36 884 3.07 1.11 0.36 910 29 18 2.82 2.48 0.88 680 2.70 2.38 0.88 714 2.59 2.28 0.88 748 2.50 2.20 0.88 782 29 20 2.94 2.23 0.76 714 2.82 2.14 0.76 757 2.74 2.08 0.76 774 2.64 2.01 0.76 808 29 22 3.06 1.96 0.64 740 2.95 1.89 0.64 786 2.88 1.84 0.64 808 2.76 1.77 0.64 842 29 24 3.22 1.67 0.52 774 3.10 1.61 0.52 816 3.02 1.57 0.52 842 2.93 1.52 0.52 884 29 26 3.31 1.32 0.40 816 3.22 1.29 0.40 859 3.17 1.27 0.40 884 3.07 1.23 0.40 910 30 18 2.82 2.59 0.92 680 2.70 2.48 0.92 714 2.59 2.38 0.92 748 2.50 2.30 0.92 782 30 20 2.94 2.35 0.80 714 2.82 2.26 0.80 757 2.74 2.19 0.80 774 2.64 2.11 0.80 808 30 22 3.06 2.08 0.68 740 2.95 2.01 0.68 786 2.88 1.96 0.68 808 2.76 1.88 0.68 842 30 24 3.22 1.80 0.56 774 3.10 1.73 0.56 816 3.02 1.69 0.56 842 2.93 1.64 0.56 884 30 26 3.31 1.46 0.44 816 3.22 1.42 0.44 859 3.17 1.39 0.44 884 3.07 1.35 0.44 910 31 18 2.82 2.71 0.96 680 2.70 2.59 0.96 714 2.59 2.49 0.96 748 2.50 2.40 0.96 782 31 20 2.94 2.47 0.84 714 2.82 2.37 0.84 757 2.74 2.30 0.84 774 2.64 2.22 0.84 808 31 22 3.06 2.20 0.72 740 2.95 2.13 0.72 786 2.88 2.07 0.72 808 2.76 1.99 0.72 842 31 24 3.22 1.93 0.60 774 3.10 1.86 0.60 816 3.02 1.81 0.60 842 2.93 1.76 0.60 884 31 26 3.31 1.59 0.48 816 3.22 1.54 0.48 859 3.17 1.52 0.48 884 3.07 1.47 0.48 910 32 18 2.82 2.82 1.00 680 2.70 2.70 1.00 714 2.59 2.59 1.00 748 2.50 2.50 1.00 782 32 20 2.94 2.59 0.88 714 2.82 2.48 0.88 757 2.74 2.41 0.88 774 2.64 2.32 0.88 808 32 22 3.06 2.33 0.76 740 2.95 2.24 0.76 786 2.88 2.19 0.76 808 2.76 2.10 0.76 842 32 24 3.22 2.06 0.64 774 3.10 1.98 0.64 816 3.02 1.94 0.64 842 2.93 1.87 0.64 884 32 26 3.31 1.72 0.52 816 3.22 1.67 0.52 859 3.17 1.65 0.52 884 3.07 1.60 0.52 910

CAPACITY : 2.4(kW) SHF : 0.74 INPUT : 850(W)

OUTDOOR DB(:)

INDOOR

25 27 30

DB(:)

WB(:)

SHC

SHF

INPUT

SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

COOL operation (230V)

MSC-A07WV - (Single : Room B or C) : MUX-A22WV -

NOTE Q :Total capacity (kW) SHF :Sensible heat factor DB :Dry-bulb temperature

SHC :Sensible heat capacity (kW) INPUT :Total power input (W) WB :Wet-bulb temperature

E1E1

Page 14

PERFORMANCE DATA

21 18 2.35 1.32 0.56 833 2.16 1.21 0.56 884 2.08 1.16 0.56 901 21 20 2.47 1.09 0.44 867 2.30 1.01 0.44 910 2.22 0.98 0.44 935 22 18 2.35 1.41 0.60 833 2.16 1.30 0.60 884 2.08 1.25 0.60 901 22 20 2.47 1.19 0.48 867 2.30 1.11 0.48 910 2.22 1.07 0.48 935 22 22 2.62 0.94 0.36 901 2.45 0.88 0.36 952 2.36 0.85 0.36 969 23 18 2.35 1.51 0.64 833 2.16 1.38 0.64 884 2.08 1.33 0.64 901 23 20 2.47 1.29 0.52 867 2.30 1.20 0.52 910 2.22 1.15 0.52 935 23 22 2.62 1.05 0.40 901 2.45 0.98 0.40 952 2.36 0.95 0.40 969 24 18 2.35 1.60 0.68 833 2.16 1.47 0.68 884 2.08 1.41 0.68 901 24 20 2.47 1.38 0.56 867 2.30 1.29 0.56 910 2.22 1.24 0.56 935 24 22 2.62 1.15 0.44 901 2.45 1.08 0.44 952 2.36 1.04 0.44 969 24 24 2.76 0.88 0.32 935 2.59 0.83 0.32 978 2.52 0.81 0.32 999 25 18 2.35 1.69 0.72 833 2.16 1.56 0.72 884 2.08 1.49 0.72 901 25 20 2.47 1.48 0.60 867 2.30 1.38 0.60 910 2.22 1.33 0.60 935 25 22 2.62 1.26 0.48 901 2.45 1.18 0.48 952 2.36 1.13 0.48 969 25 24 2.76 0.99 0.36 935 2.59 0.93 0.36 978 2.52 0.91 0.36 999 26 18 2.35 1.79 0.76 833 2.16 1.64 0.76 884 2.08 1.58 0.76 901 26 20 2.47 1.58 0.64 867 2.30 1.47 0.64 910 2.22 1.42 0.64 935 26 22 2.62 1.36 0.52 901 2.45 1.27 0.52 952 2.36 1.23 0.52 969 26 24 2.76 1.10 0.40 935 2.59 1.04 0.40 978 2.52 1.01 0.40 999 26 26 2.90 0.81 0.28 969 2.74 0.77 0.28 1012 2.65 0.74 0.28 1033 27 18 2.35 1.88 0.80 833 2.16 1.73 0.80 884 2.08 1.66 0.80 901 27 20 2.47 1.68 0.68 867 2.30 1.57 0.68 910 2.22 1.51 0.68 935 27 22 2.62 1.46 0.56 901 2.45 1.37 0.56 952 2.36 1.32 0.56 969 27 24 2.76 1.21 0.44 935 2.59 1.14 0.44 978 2.52 1.11 0.44 999 27 26 2.90 0.93 0.32 969 2.74 0.88 0.32 1012 2.65 0.85 0.32 1033 28 18 2.35 1.98 0.84 833 2.16 1.81 0.84 884 2.08 1.74 0.84 901 28 20 2.47 1.78 0.72 867 2.30 1.66 0.72 910 2.22 1.60 0.72 935 28 22 2.62 1.57 0.60 901 2.45 1.47 0.60 952 2.36 1.42 0.60 969 28 24 2.76 1.32 0.48 935 2.59 1.24 0.48 978 2.52 1.21 0.48 999 28 26 2.90 1.05 0.36 969 2.74 0.98 0.36 1012 2.65 0.95 0.36 1033 29 18 2.35 2.07 0.88 833 2.16 1.90 0.88 884 2.08 1.83 0.88 901 29 20 2.47 1.88 0.76 867 2.30 1.75 0.76 910 2.22 1.69 0.76 935 29 22 2.62 1.67 0.64 901 2.45 1.57 0.64 952 2.36 1.51 0.64 969 29 24 2.76 1.44 0.52 935 2.59 1.35 0.52 978 2.52 1.31 0.52 999 29 26 2.90 1.16 0.40 969 2.74 1.09 0.40 1012 2.65 1.06 0.40 1033 30 18 2.35 2.16 0.92 833 2.16 1.99 0.92 884 2.08 1.91 0.92 901 30 20 2.47 1.98 0.80 867 2.30 1.84 0.80 910 2.22 1.78 0.80 935 30 22 2.62 1.78 0.68 901 2.45 1.66 0.68 952 2.36 1.61 0.68 969 30 24 2.76 1.55 0.56 935 2.59 1.45 0.56 978 2.52 1.41 0.56 999 30 26 2.90 1.28 0.44 969 2.74 1.20 0.44 1012 2.65 1.17 0.44 1033 31 18 2.35 2.26 0.96 833 2.16 2.07 0.96 884 2.08 1.99 0.96 901 31 20 2.47 2.08 0.84 867 2.30 1.94 0.84 910 2.22 1.86 0.84 935 31 22 2.62 1.88 0.72 901 2.45 1.76 0.72 952 2.36 1.70 0.72 969 31 24 2.76 1.66 0.60 935 2.59 1.56 0.60 978 2.52 1.51 0.60 999 31 26 2.90 1.39 0.48 969 2.74 1.31 0.48 1012 2.65 1.27 0.48 1033 32 18 2.35 2.35 1.00 833 2.16 2.16 1.00 884 2.08 2.08 1.00 901 32 20 2.47 2.18 0.88 867 2.30 2.03 0.88 910 2.22 1.95 0.88 935 32 22 2.62 1.99 0.76 901 2.45 1.86 0.76 952 2.36 1.80 0.76 969 32 24 2.76 1.77 0.64 935 2.59 1.66 0.64 978 2.52 1.61 0.64 999 32 26 2.90 1.51 0.52 969 2.74 1.42 0.52 1012 2.65 1.38 0.52 1033

CAPACITY : 2.4(kW) SHF : 0.74 INPUT : 850(W)

OUTDOOR DB(:)

INDOOR

DB(:)

WB(:)

SHC

SHF

INPUT

SHC SHF INPUT Q SHC SHF INPUT

35 40 43

COOL operation (230V)

MSC-A07WV - (Single : Room B or C) : MUX-A22WV -

NOTE Q :Total capacity (kW) SHF :Sensible heat factor DB :Dry-bulb temperature

SHC :Sensible heat capacity (kW) INPUT :Total power input (W) WB :Wet-bulb temperature

E1E1

Page 15

ACTUATOR

ON OFF

OFF ON

OFF ON (OPEN) OFF (CLOSE) ON (OPEN) OFF (CLOSE)

ON (CLOSE)

OFF (OPEN)

SOLENOID VALVE

INDOOR UNIT

MC1

MC2

MF61

21R3

21R4

21RB

COMPRESSOR

OUTDOOR FAN MOTOR

OFF

– – – –

OFF

– – – – – – – –

–

– ON ON

OFF OFF

ANY UNIT ON

OFF

–

– ON ON

OFF OFF

C –

–

OFF

– –

OFF

MUX-A22WV - E1

“–” means that the indoor unit is not related to the control of actuator.

Lead wiring

Housing point

MICROPROCESSOR CONTROL

MUX-A22WV -

OUTDOOR UNIT ACTUATOR CONTROL

MUX-A22WV -

TROUBLESHOOTING

11-1. Cautions on troubleshooting

1. Before troubleshooting, check the following:

1) Check the power supply voltage.

2) Check the indoor/outdoor connecting wire for mis-wiring.

2. Take care the following during servicing.

1) Before servicing the air conditioner, first be sure to turn off the remote controller to stop the unit, and then after confirming the horizontal vane is closed, turn off the breaker and/or disconnect the power plug.

2) Be sure to turn OFF the power supply before removing the front panel, the cabinet, the top panel, and the electronic control P.C. board.

3) When removing the electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the components.

4) When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires.

3. Troubleshooting procedure

1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality.

To make sure, check how many times the abnormality indication is flashing on and off before starting service work.

2) If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and the

components for bursting and discoloration.

3) When troubleshooting, refer to the flow chart on page 16.

Page 16

11-2. Instruction of troubleshooting

Start

Indoor unit operates. Outdoor unit doesn't operate.

Indoor unit doesn't receive the signal from remote controller.

Indoor unit operates. But indoor unit doesn't blow out cool air.

Indoor unit operates. Outdoor unit doesn't operate normally.

OPERATION INDICATOR lamp on the indoor unit is flashing on and off.

Outdoor unit operates in only Test Run operation.

Outdoor unit doesn't operate even in Test Run operation.

Indoor unit operates, when the EMERGENCY OPERATION switch is pressed.

Indoor unit doesn't operate, when the EMERGENCY OPERATION switch is pressed.

Check room temperature thermistor. Refer to "Test point diagram and voltage".

Refer to A "Check of outdoor unit" on page 18.

Refer to "Check of remote controller and receiver P.C. board".

Flash on and off at 0.5-second intervals Cause: Wrong setting of switch (SW2-2) on the electronic control P.C. board.

2-time flash Cause: Indoor unit

• Trouble of room temp erature/ indoor coil thermistor

3-time flash Cause: Indoor unit

• Trouble of indoor fan motor

Check room temperature thermistor and indoor coil thermistor. Refer to "Test point diagram and voltage".

Refer to "Check of indoor fan motor".

Refer to C "Check of MU & MUX TYPE / MUH & MXZ TYPE SWITCH OVER " (When outdoor unit doesn't work.) on page 19.

1. Check indoor / outdoor connecting wire.

2. Refer to "Check of indoor electronic control P.C. board".

Outdoor unit doesn't stop even if indoor unit stops.

Refer to B "Check of outdoor unit" on page 19.

Refer to D "Check of indoor / outdoor units' connection and outdoor unit" on page 19.

As for indoor unit, refer to service manual OB307 REVISED EDITION-A.

MUX-A22WV -

Page 17

MUX-A22WV -

BLK

RED

WHT

Part name

Compressor (MC1, MC2) INNER PROTECTOR 150°C OPEN

90°C CLOSE

Outdoor fan motor

(MF61) INNER

PROTECTOR 145i8°C OPEN

Solenoid coil

21RB, 21R3, 21R4

Check method and criterion

Measure the resistance between the terminals with a tester. (Coil wiring temperature-10°C ~ 40°C)

C-R

C-S

RN145VHSHT

2.14 ~ 2.63

3.35 ~ 4.11

Normal

Ω

RN092VHSHT

3.41 ~ 4.18

5.41 ~ 6.63

Ω Ω

Abnormal

short-circuit

Measure the resistance between the terminals with a tester. (Coil wiring temperature -10°C ~ 40°C)

Color of lead

wire

WHT-BLK

BLK-RED

Normal Abnormal

79 ~ 98Ω

129 ~ 158

Ω

Open or

short-circuit

Measure the resistance with a tester. (Part temperature -10°C ~ 40°C)

Normal

1410 ~ 1730Ω

Abnormal

Open or short-circuit

Figure

Open or

P Inner protector

Page 18

Start

Press the EMERGENCY OPEERATION switch of all indoor units.

Yes

Is there 230V AC between L

- N

on the TB1

of outdoor unit?

Is fuse(F61) on the outdoor control P.C. board blown?

Check and rectify the connecting wire of indoor and outdoor unit.

3 minutes later, is there 12V DC between 1 - 2 on the all terminal blocks of outdoor unit?

Is there 10~15V DC between JP20 DC12V and JP19 GND on outdoor control P.C. board?

Fan motor doesn't operate.

Compressor doesn't operate.

Yes

Turn OFF the power supply to outdoor unit.

Does outdoor control P.C. board connect with outdoor fan capacitor C61?

Yes

Connect the outdoor control P.C. board with outdoor fan capacitor C61.

Disconnect connector of outdoor fan motor CN91 and outdoor fan capacitor C61.

Replace the outdoor fan motor.

Replace the outdoor control P.C. board.

Yes

Turn OFF the power supply.

Replace the outdoor control P.C. board.

Disconnect connector of outdoor fan motor CN91 and outdoor fan capacitor C61.

Is the resistance 0" or ∞ between the lead wire WHT and BLK of outdoor fan motor, or between the lead wire RED and BLK of outdoor fan motor? (Refer to page 17.)

Yes

Replace the outdoor fan motor and fuse(F61).

Check the power supply and connecting wire.

Is there 12V DC between

- 2

on the terminal

block of each indoor unit?

Short both terminal of fuse(F61).

Yes

Is the resistance 0" between the fuse(F61) and the terminal of CN903?

Replace the outdoor control P.C. board.

Yes

Replace the fuse(F61).

Check the indoor unit.

Yes

Turn OFF the power supply to outdoor unit. Disconnect connecting wire of X521 and X522 from outdoor control P.C. board. Insulate terminal of connecting wires to prevent contact of other parts. Turn ON the power supply to outdoor unit. Press the EMERGENCY OPERATION switch of all indoor unit.

Is the resistance 0" or ∞ between the terminal C and R of MC1, and between the terminal C and S of MC1? (Refer to page 17.)

3 minutes later, is the resistance 0" between the terminal 3 and 4 of X521 on outdoor control P.C. board, and between the terminal 3 and 4 of X522 on outdoor control P.C. board?

Turn OFF the power supply to outdoor unit.

Yes

Replace the compressor MC1.

Replace the compressor MC2.

Check and rectify the connecting wire of terminal and compressor.

Turn OFF the power supply to outdoor unit.

Replace the outdoor control P.C. board.

Is the resistance 0" or ∞ between the terminal C and R of MC2, and between the terminal C and S of MC2? (Refer to page 17.)

Yes

Is the resistance 0" or ∞ between the lead wire WHT and BLK of outdoor fan motor, or between the lead wire RED and BLK of outdoor fan motor? (Refer to page 17.)

Measure resistance all the solenoid coil.

Is resistance 0"?

Replace the solenoid coil.

Yes

Compressor and / or outdoor fan doesn’t operate.

Check of outdoor unit

Page 19

Compressor and / or outdoor fan doesn’t stop.

Turn ON the power supply, and operate all the indoor units at a time.

Yes

Operate the indoor unit one by one, and measure the voltage between 1 and 2 of outdoor terminal block for each indoor unit. Match the signs of terminal block whose voltage is 12V DC and pipe of indoor/ outdoor units' connection. w1.

Do they perform the cooling operation?

Start

Indoor unit

Model

Terminal block

Connector for

solenoid coil control B C

TB3 TB4

21R3-CN85 21R4-CN86

21RB-CN81

w1. If the pipe of indoor unit that does not operate is cooled though the combination of pipe and connecting wire is correct, check the solenoid coil. Refer to page 7.

Turn OFF the power supply. Remove solenoid coil's connector that corresponds to the indoor unit, which does not blow out cool air. Then, measure the resistance of solenoid coil.

Do the resistance value normal? (Refer to page 17.)

Yes

Reconnect solenoid coil's connector. Then turn the main power on and operate the indoor unit that does not blow out cool air. Measure the voltage of solenoid coil's connector that corresponds to the indoor unit, which is operated.

Replace the solenoid coil.

Is voltage 230V?

Yes

MUX-A22WV

Replace the outdoor control P.C. board.

Check of outdoor unit

Start

Turn OFF the power supply. After 1 minute, turn ON power supply again.

Is there 12V DC between

Does compressor or outdoor fan motor stop?

Yes

1–2 on the outdoor terminal block (TB2 or TB3)?

Replace the indoor electoronic control P.C. board.

Yes

Replace the outdoor control P.C. board.

When OPERATION INDICATOR lamp flashes 0.5-second intervals. Outdoor unit doesn’t operate.

Check of MU & MUX TYPE / MUH & MXZ TYPE SWITCH OVER

Start

Turn OFF the power supply (indoor / outdoor unit).

Set switch (SW2-2) on the indoor electronic control P.C. board to MUX type.

Does the unit operate?

Refer to the "Instruction of troubleshooting."

Yes

Cool air doesn’t blow out although indoor unit is operating.

Check of indoor / outdoor units’ connection and outdoor unit

w In case of troubleshooting, be sure to operate indoor unit by emergency operation switch.

w 1 Set the switch (SW2-2) on indoor electronic control P.C. board to

MUX type, when the outdoor unit is MUX type. If the setting is MUH or MXZ type, the unit does not work. Refer to 12-6. MU & MUX TYPE / MUH& MXZ TYPE SWITCH OVER AND AUTO RESTART FUNCTION on service manual OB307 REVISED EDITON-A.

Page 20

TEST POINT DIAGRAM AND VOLTAGE MUX-A22WV -

Outdoor control P.C. board

To fan capacitor C61

From indoor unit A 12V DC 1+, 3-

From indoor unit B 12V DC 1+, 3-

From indoor unit C 12V DC 1+, 3-

To fan motor 230V AC 50Hz

BLK

WHT

JP20 DC12V JP19 GND

}

12V DC

To fan capacitor C61

To indoor unit B Solenoid coil 21R3 230V AC 50Hz

To indoor unit C Solenoid coil 21R4 230V AC 50Hz

Fuse 250V AC

3.15A

To solenoid coil 21RB 230V AC 50Hz

Terminal 4 of X521

Terminal 3 of X521

Terminal 4 of X522

Terminal 3 of X522

Power supply input 230V AC 50Hz

Surge absorber NR61

Page 21

(1) Slide the sleeve and check if there is a locking lever or not. (2) The terminal with this connector is a terminal

with lock mechanism

1Slide the sleeve. 2Pull the terminal while

pushing the locking lever.

1Hold the sleeve, and pull out the terminal slowly.

In case of terminal with lock mechanism, detach the terminal as shown below. There are two types ( Refer to (1) and (2)) of the terminal with lock mechanism. The terminal with no lock mechanism can be removed by pulling it out. Check the shape of the terminal and work.

<"Terminal with lock mechanism" Detaching points>

Connector

Sleeve

Locking lever

DISASSEMBLY INSTRUCTIONS

12-1. MUX-A22WV -

OUTDOOR UNIT

OPERATING PROCEDURE PHOTOS

1.Removing the cabinet

(1) Remove the screws of the top panel. (2) Remove the screws of the service panel. (3) Remove the top panel. (4) Remove the service panel. (5) Remove the screws of the front panel. (6) Remove the front panel. (7) Remove the screws of the back panel. (8) Remove the back panel.

Photo 3

Back panel

Photo 1

Set screws of the front panel

Photo 2

Top panel

Front panel

Set screws of the front panel

Set screws of the top panel

Set screws of the back panel

Set screws of the front panel

Service panel

Set screws of the service panel

Set screws of the back panel

Page 22

OPERATING PROCEDURE PHOTOS

2. Removing the relay panel

(1) Remove the cabinet. (Refer to 1.) (2) Disconnect the following connectors.

Outdoor fan motor

Solenoid coil (21RB, 21R3, 21R4)

3. Removing the propeller

(1) Remove the cabinet. (Refer to 1.) (2) Remove the propeller nut. (3) Remove the propeller.

NOTE : Loose the propeller in the rotating direction for

removal.

When attaching the propeller, align the mark on the propeller and the motor shaft cut section. Set the propeller in position by using the cut on the shaft and the mark on the propeller.

4. Removing the outdoor fan motor

(1) Remove the cabinet. (Refer to 1.) (2) Remove the propeller. (Refer to 3.) (3) Remove the clamp of outdoor fan motor lead wire and

disconnect the outdoor fan motor connector. (4) Remove the screws fixing the outdoor fan motor. (5) Remove the outdoor fan motor.

Photo 4

Set screws of the outdoor fan motor

Back panel

Outdoor fan motor

Propeller

Solenoid coil connector (21RB, 21R3, 21R4)

Outdoor fan

motor connector Set screws of the relay panel

Clamp

Propeller nut

Set screws of the relay panel

5. Removing the compressor (A, B)

(1) Remove the cabinet. (Refer to 1.) (2) Remove the relay panel. (3) Remove the soundproof felt. (4) Remove the terminal cover on the compressor. (5) Disconnect lead wires from the compressor. (6) Recover gas from the refrigerant circuit. (7) Disconnect the welded part of the discharge pipe. (8) Disconnect the welded part of the suction pipe. (9) Remove nuts fixing the compressor.

)

(

Remove the compressor.

NOTE

● Before using a burner, reclaim gas from the pipes until the pressure gauge shows 0 kg/cm

● Use the burner under the condition that gas can be recovered even when the inner pressure rises by heat.

(0 MPa) .

6. Removing the compressor (C)

(1) Remove the cabinet. (Refer to 1.) (2) Remove the relay panel. (Refer to 2.) (3) Remove the screws fixing back panel. (4) Remove the back panel. (5) Remove the soundproof felt. (6) Remove the terminal cover on the compressor. (7) Disconnect lead wires from the compressor. (8) Recover gas from the refrigerant circuit. (9) Disconnect the welded part of the discharge pipe.

)

(

Disconnect the welded part of the suction pipe.

(11)

Remove nuts fixing the compressor.

(12)

Remove the compressor.

Photo 5

Suction pipe

Discharge pipe

Sound proof felt

Terminal cover

NOTE

● Before using a burner, reclaim gas from the pipes until the pressure gauge shows 0 kg/cm

● Use the burner under the condition that gas can be recovered even when the inner pressure rises by heat.

(0 MPa) .

Page 23

PARTS LIST

MUX-A22WV -

13-1. OUTDOOR UNIT STRUCTURAL PARTS

Part numbers that are circled are not shown in the illustration.

No.

Part No.

E02 636 297

E02 636 515

E02 756 630

E02 636 232

E02 527 521

E07 001 009

E02 742 900

E02 744 900 E02 289 936

E02 134 936

E02 075 506

E02 636 290 E02 756 661

E02 757 661

E02 756 662

E02 024 936

E02 636 245

E02 756 233 E02 721 009

E02 637 490

E02 652 490

E02 652 491

E02 755 492

E02 759 492

TOP PANEL MOTOR SUPPORT OUTDOOR HEAT EXCHANGER CABINET FAN GUARD HANDLE COMPRESSOR COMPRESSOR CAPILLARY TUBE CAPILLARY TUBE COMPRESSOR RUBBER SET BASE STOP VALVE (GAS) STOP VALVE (GAS) STOP VALVE (LIQ) CAPILLARY TUBE SERVICE PANEL BACK PANEL (OUT) HANDLE SOLENOID COIL SOLENOID COIL (B) SOLENOID COIL (C) SOLENOID VALVE SOLENOID VALVE

Part Name

7 8 9 10

Symbol

in Wiring

Diagram

CT1, CT3, CT4

MC2 MC1

CT2

CT5

21RB

21R3 21R4

Q'ty / unit

MUX-A22WV-

1 1 1 1 1 2 1 1 3 1 6 1 1 2 3 1 1 1 1 1 1 1 2 1

Remarks

RN092VHSHT RN145VHSHT

[3.0O[1.6O900

[3.0O[1.6O700

3RUBBERS/SET

[12.7 [9.52 [6.35 [3.0O[1.4O1000

Page 24

MUX-A22WV -

13-2. OUTDOOR UNIT

FUNCTIONAL PARTS AND ELECTRICAL PARTS

No.

Part No. Part Name

E02 756 301

E02 214 501

E02 757 444

E02 085 385 E02 637 374

E02 637 377

E02 756 374

E02 138 351

E02 127 382

E02 742 353

E02 667 353

E02 128 383

E07 056 374

OUTDOOR FAN MOTOR PROPELLER OUTDOOR CONTROL P.C. BOARD SURGE ABSORBER TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK OUTDOOR FAN CAPACITOR FUSE COMPRESSOR CAPACITOR COMPRESSOR CAPACITOR SURGE ABSORBER TERMINAL BLOCK

Symbol

in Wiring

Diagram

MF61

NR61

TB2 TB3 TB1 C61

F61

C2 C1

DSAR

TB4

Q'ty / unit

MUX-A22WV-

1 1 1 1 1 1 1 1 1 1 1 1 1

Remarks

RA6V60-

4P FIGURE A 3P FIGURE B 3P

3.0+/440V AC

3.15A 20+/450V AC 30+/450V AC

HEAD OFFICE: MITSUBISHI DENKI BLDG.,2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN

New publication, effective Oct. 2003 Specifications subject to change without notice.

Mitsubishi MUX-A22WV Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual