Mitsubishi MSZ-GA50 VA Service manual

OB389F--1qxp 07.9.3 5:06 PM Page 1

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

Revision F:

• MUZ-GA60VA-

E3 has been added.

Please void OB389 REVISED EDITION-E.

OUTDOOR UNIT

SERVICE MANUAL

Wireless type

Models

HFC utilized

R410A

No. OB389

REVISED EDITION-F

MUZ-GA50VA -

MUZ-GA60VA -

MUZ-GA60VA -

MUZ-GA60VA -

MUZ-GA71VA -

MUZ-GA71VA -

E2

E1

E1

E1

E2

E3

CONTENTS

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

2. PART NAMES AND FUNCTIONS······················6

3. SPECIFICATION·················································6

4. NOISE CRITERIA CURVES ·······························7

5. OUTLINES AND DIMENSIONS ·························8

6. WIRING DIAGRAM ············································9

7. REFRIGERANT SYSTEM DIAGRAM ··············12

8. PERFORMANCE CURVES ······························15

9. ACTUATOR CONTROL····································26

10. SERVICE FUNCTIONS·····································27

11. TROUBLESHOOTING ······································27

12. DISASSEMBLY INSTRUCTIONS·····················46

13. PARTS LIST······················································50

14. RoHS PARTS LIST···········································54

NOTE:

• RoHS compliant products have <G> mark on the spec name plate.

For servicing of RoHS compliant products, refer to the RoHS Parts List.

• Contents of SERVICE FUNCTIONS(10) have been removed.

Indoor unit service manual

MSZ-GA•VA Series (OB388)

OB389F--1qxp 07.9.3 5:06 PM Page 2

Revision A :

• RoHS PARTS LIST has been added.

• Failure mode recall function(11-2.) has been changed.

• Check of HPS(11-6.

H ) has been corrected.

Revision B:

• Compressor has been changed. (MUZ-GA50/60VA)

Previous

New

Model

SNB130FLDH

SNB130FLDH1

PARTS LIST number

E02 851 900

E02 939 900

RoHS PARTS LIST number

E12 851 900

E12 939 900

Revision C:

• MUZ-GA60/71VA-

E2 have been added.

• Check of outdoor thermistors(11-6.

F ) has been corrected.

• Contents of SERVICE FUNCTIONS(10) have been removed as these models do not have the functions.

Revision D:

• PARTS LIST and RoHS PARTS LIST have been changed.

Revision E:

• REFRIGERANT SYSTEM DIAGRAM has been changed for MUZ-GA60VA-

E2

.

Revision F:

• MUZ-GA60VA-

E3 has been added.

2

OB389F--1qxp 07.9.3 5:06 PM Page 3

1 TECHNICAL CHANGES

MUZ-A18YV -

MUZ-A24YV -

MUZ-A26YV -

E1

E1

E1

➔ MUZ-GA50VA -

E1

➔ MUZ-GA60VA -

E1

➔ MUZ-GA71VA -

E1

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

2.Outdoor electronic control P.C. board has been changed.

3.Noise filter P.C. board has been changed.

4.Length of fan motor lead wire has been changed.

5.Shape of relay panel has been changed.

6.Signal of terminal block has been changed.

MUZ-GA60VA -

E1

➔ MUZ-GA60VA -

E2

1.Compressor has been changed. (SNB130FLDH1 ➔ SNB130FLEH1)


MUZ-GA60VA -

E2

➔ MUZ-GA60VA -

E3

1.Compressor has been changed. (SNB130FLEH1 ➔ SNB130FGBH)


3.Refrigerant circuit has been changed.

MUZ-GA71VA -

E1

➔ MUZ-GA71VA -

E2


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 air 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.

Refrigerant

Composition (Ratio)

Refrigerant handling

New refrigerant

R410A

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

Pseudo-azeotropic refrigerant

Chlorine

Safety group (ASHRAE)

Molecular weight

Boiling point ( : )

Steam pressure [25 : ](Mpa)

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

Combustibility

ODP w

1

GWP w 2

Refrigerant charge method

Additional charge on leakage

Kind

Color

Smell w 1 :Ozone Depletion Potential w 2 :Grobal Warming Potential

Not included

A1/A1

72.6

-51.4

1.557

64

Non combustible

: based on CFC-11

: based on CO

2

0

1730

From liquid phase in cylinder

Possible

Incompatible oil

Non

Non

Previous refrigerant

R22

R22 (100%)

Single refrigerant

Included

A1

86.5

-40.8

0.94

44.4

Non combustible

0.055

1700

Gas phase

Possible

Compatible oil

Light yellow

Non

3

OB389F--1qxp 07.9.3 5:06 PM Page 4

New Specification Current Specification

The incompatible refrigeration 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 refrigeration oil of the upper layer to flow back to the compressor.

Suction muffler

Since refrigerant and refrigeration oil are compatible, refrigeration oil goes back to the compressor through the lower position oil back hole.

Suction muffler

Compressor

Oil back hole

Refrigeration oil

Compressor

Oil back hole

Refrigerant

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])

Conversion chart of refrigerant temperature and pressure

(MPa [Gauge])

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0

R410A

R22

NOTE : The unit of pressure has been changed to MPa on the international system of units(SI unit system).


-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?

Gauge manifold

Charge hose

Gas leak detector

Torque wrench

Flare tool

Flare gauge

Vacuum pump adapter

Electronic scale for refrigerant charging

No

No

No

Yes

No

Yes

New

New

New

Description

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

12.7 mm and 15.88mm

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.

No : Not Substitutable for R410A Yes : Substitutable for R410A

4

OB389F--1qxp 07.9.3 5:06 PM Page 5

2.Refrigerant piping

1 Specifications

Use the refrigerant pipes that meet the following specifications.

Pipe

For liquid

For gas

Outside diameter mm

6.35

9.52

12.7

15.88

Wall thickness

0.8 mm

0.8 mm

0.8 mm

1.0 mm

Insulation material

Heat resisting foam plastic

Specific gravity 0.045 Thickness 8 mm

• Use a copper pipe or a copper-alloy seamless pipe with a thickness of 0.8 mm (6.35, 9.52, 12.7), 1.0 mm (15.88).

Never use any pipe with a thickness less than 0.8 mm (6.35, 9.52, 12.7), 1.0 mm (15.88), 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”.

Pipe diameter mm

6.35

9.52

12.7

15.88

R410A

17

22

26

29

Dimension of flare nut

R22

17

22

24

27

3.Refrigeration 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, capacity 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.

Union

Stop valve

Indoor unit

Liquid pipe

Gas pipe

Outdoor unit

Refrigerant gas cylinder operating valve

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

OB389F--1qxp 07.9.3 5:07 PM Page 6

2 PART NAMES AND FUNCTIONS

MUZ-GA50VA

MUZ-GA60VA

MUZ-GA71VA

Air inlet

(back and side)

Piping

Drain hose

ACCESSORIES

1

2

Drain socket

Drain cap [ 33

Air outlet

Drain outlet

3 SPECIFICATION

1

2

Outdoor model MUZ-GA50VA MUZ-GA60VA MUZ-GA71VA

Function

Power supply

Capacity Rated frequency(Min.-Max.)

Dehumidification kW r /h

Air flow(High/Low)

Power outlet

Running current

Power input

K

A

A

/h

W

Power factor

Starting current ✽ 1

%

A

Compressor motor current ✽ 1 A

Fan motor current A

Coefficient of performance(C.O.P) ✽ 1

Cooling

6.23

1,410

98.4

Heating

Single phase

230V,50Hz

5.0(0.9-5.9) 5.9(0.9-7.8)

2.5

2,940/1,650

20

—

2,940/2,210

7.01

1,580

98.0

7.46

5.93

6.71

0.30

3.42

3.62

Cooling Heating

Single phase

230V,50Hz

6.0(0.9-6.7) 6.8(0.9-8.1)

3.0

—

2,940/1,650

20

2,940/2,210

8.23

8.33

1,870

98.8

1,880

98.1

8.93

7.93

8.03

0.30

3.11

3.51

Cooling Heating

Single phase

230V,50Hz

7.1(0.9-8.3) 8.1(0.9-9.6)

3.8

—

2,940/1,650

20

2,940/2,210

10.4

2,360

98.7

10.6

2,390

98.0

11.2

10.1

10.3

0.30

2.93

3.31

Model

Output

Winding resistance(at 20 : )

Model

Winding resistance(at 20 : )

Dimensions W O H O D

Weight

Sound level(High/Low)

Fan speed(High/Low)

Fan speed regulator

Refrigerant filling capacity(R410A)

Refrigeration oil(Model)

W

"

" mm kg dB rpm kg

SNB130FLDH or SNB130FLDH1

850

U-V 0.45 W-U 0.45

V-W 0.45

RC0J60-AA

BLK-WHT 15.2

WHT-RED 15.2 RED-BLK15.2

840 o

850 o

330

53/51

53

55/53

800/480

2

800/620

E2

E3

SNB130FLEH1

SNB130FGBH

850

TNB220FMCH

U-V 0.45 W-U 0.45

V-W 0.45

RC0J60-AA

BLK-WHT 15.2


840 o

850 o

330

53/51 53 55/53

800/480 800/620

1,300

U-V 1.41 W-U 1.41

V-W 1.41

RC0J60-AA

BLK-WHT 15.2


840 o 850 o 330

53/51

58 55/53

800/480 800/620

2 2

1.8

1.8

2.0

NEO22

NOTE : Test conditions are based on ISO 5151.

Cooling : Indoor DB 27 : WB 19 :

Outdoor DB 35 : WB (24 : )

Heating : Indoor DB 20 : WB 15 :

Outdoor DB 7 : WB 6 :

Refrigerant piping length (one way): 5m

✽ 1 Measured under rated operating frequency.

NEO22 NEO22

6

OB389F--1qxp 07.9.3 5:07 PM Page 7

Specifications and rating conditions of main electric parts

Model

MUZ-GA50VA

Item

Smoothing capacitor (CB1,2,3)

Current transformer

Fuse

(CT61)

(F64)

Fuse (F801)

Fuse (F911)

Intelligent power module (HC930)

High pressure switch (HPS) –

Reactor

Expansion valve coil

Power factor controller

Resistor

Resistor

Resistor

Solenoid coil relay

Terminal block

Terminal block

Relay

R.V. coil

(L)

(LEV)

(PFC)

(R64A,B)

(R937A,B)

(RS1~4)

(SSR61)

(TB1)

(TB2)

(X64)

(21S4)

MUZ-GA60VA MUZ-GA71VA

560 + 450V

ETQ19Z68AY

ETQ19Z53AY

250V 2A

250V 3.15A

250V 1A

PS21661-RZ

ACB-DB156

PS21244-A

340

µ

H 20A

DC 12 V

PS51259-A

10 " 10W

1.1

" 2W 2%

0.04

" 7W

TLP3506

3P

3P

G4A

AC 220 ~ 240 V

4 NOISE CRITERIA CURVES

MUZ-GA50VA

MUZ-GA60VA

MUZ-GA71VA

90

80

70

NC-70

60

NC-60

50

NC-50

40

NC-40

30

20

10

NC-30

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

63 125

NC-20

250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

FAN SPEED FUNCTION SPL(dB(A))

COOLING 53

High

HEATING 55

LINE

Test conditions

Cooling : Dry-bulb temperature 35 :

Wet-bulb temperature (24 : )

Heating : Dry-bulb temperature 7 :

Wet-bulb temperature 6 :

OUTDOOR UNIT

1m

MICROPHONE

7

OB389F--1qxp 07.9.3 5:07 PM Page 8

5 OUTLINES AND DIMENSIONS

MUZ-GA50VA

MUZ-GA60VA

MUZ-GA71VA

REQUIRED SPACE

66

299

515

40

100 mm or more

Open as a rule

500 mm or more if the front and both sides are open

100 mm or more

200 mm or more if there are obstacles to both sides

Unit: mm

500

840

121

80 Open as a rule

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

350 mm or more

198

Service panel

Liquid refrigerant pipe joint

Refrigerant pipe

(flared) [ 6.35 (MUZ-GA50/60)

[ 9.52 (MUZ-GA71)

35

30

Gas refrigerant pipe joint

Refrigerant pipe

(flared) [ 12.7 (MUZ-GA50)

[ 15.88 (MUZ-GA60/71)

8

OB389F--1qxp 07.9.3 5:07 PM Page 9

6 WIRING DIAGRAM

MUZ-GA50VA

MUZ-GA60VA -

E1

MUZ-GA60VA -

E2

PFC

BRN

F64

YLW

CB3

CB2

CB1

CN3

2 1

POWER BOARD

BLK

BLK

WHT

RED

CN801

5 4 3 2 1

CN931

3 2 1

HC930

F801

1 2

CN5

1 2 3 4

CN2

5 6 7

BLK

BLK

BLK

1 2 1 2

CN902 CN903

SSR61

BLK

BLK

BLK

BLK

BLK

BLU

BLU

F911

LDE2

CN912

LDE1

1

CN601

ELECTRONIC CONTROL P.C.BOARD

3 5

GRN

GRN

BLU

WHT

NOISE FILTER P.C.BOARD

9

OB389F--1qxp 07.9.3 5:07 PM Page 10

MUZ-GA60VA -

E3

10

OB389F--1qxp 07.9.3 5:07 PM Page 11

MUZ-GA71VA

PFC

BRN

F64

YLW

CB2

CB1

CB3

CN3

2 1

POWER BOARD

BLK

BLK

WHT

RED

CN801

5 4 3 2 1

CN931

3 2 1

HC930

F801

1 2

CN5

1 2 3 4

CN2

5 6 7

BLK

BLK

BLK

1 2

CN903

1 2

CN902

SSR61

BLK

BLK

BLK

BLK

BLK

BLU

BLU

F911

LDE2

CN912

LDE1

1

CN601

ELECTRONIC CONTROL P.C.BOARD

3 5

GRN

GRN

BLU

WHT

NOISE FILTER P.C.BOARD

11

OB389F--1qxp 07.9.3 5:07 PM Page 12

7 REFRIGERANT SYSTEM DIAGRAM

MUZ-GA50VA

MUZ-GA60VA -

E1

Refrigerant pipe [ 12.7 (MUZ-GA50VA)

(with heat insulator) [ 15.88 (MUZ-GA60VA) 4-way valve

Muffler

#100

Flared connection

Stop valve

(with service port)

Discharge temperature thermistor

RT62

Defrost thermistor

RT61

Outdoor heat exchanger

Ambient temperature thermistor

RT65

Compressor

Outdoor heat exchanger temperature thermistor

RT68

Flared connection

Refrigerant pipe [ 6.35

(with heat insulator)

Receiver

Strainer

#100

Stop valve Capillary tube

[ 3.6

✕[ 2.4

✕ 50

LEV

Strainer

#100 R.V. coil heating ON cooling OFF

Refrigerant flow in cooling

Refrigerant flow in heating

Unit:mm

MUZ-GA60VA -

E2


(with heat insulator) 4-way valve

Oil separator

Capillary tube

[ 1.8

✕[ 0.6

✕ 1000

Flared connection

Stop valve

(with service port)

Strainer

#100

Defrost thermistor

RT61


RT62



RT65

Flared connection



Receiver

Stop valve

Strainer

#100

Compressor

Capillary tube

[ 3.6

✕[ 2.4

✕

LEV

50


RT68

Strainer

#100

R.V. coil heating ON cooling OFF



12

Unit:mm

OB389F--1qxp 07.9.3 5:07 PM Page 13

MUZ-GA60VA -

E3


(with heat insulator) 4-way valve

Muffler

#100

Flared connection

Stop valve

(with service port)


RT62

High-pressure switch

Defrost thermistor

RT61



RT65

Compressor


RT68

Flared connection



Receiver

Stop valve

Strainer

#100

Capillary tube

[ 3.6

✕[ 2.4

✕ 50

LEV

Strainer

#100 R.V. coil heating ON cooling OFF



Unit:mm

MUZ-GA71VA



Capillary tube

[ 1.8

✕[ 0.6

✕ 1000

4-way valve

Oil separator High-pressure switch

Flared connection

Stop valve

(with service port)

Strainer

#100

Defrost thermistor

RT61


RT62



RT65

Flared connection



Receiver

Stop valve

Strainer

#100

Compressor

Capillary tube

[ 3.6

✕[ 2.4

✕

LEV

50


RT68

Strainer

#100

R.V. coil heating ON cooling OFF



Unit:mm

13

OB389F--1qxp 07.9.3 5:07 PM Page 14

MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE

Model

MUZ-GA50VA

A

Refrigerant piping : m

Max. length

Max. Height difference

B

Piping size O.D : mm

Gas

12.7

Liquid

6.35

MUZ-GA60VA

30 15

15.88

MUZ-GA71VA 9.52

Indoor unit

Max. Height difference

B

Refrigerant Piping

Max. length

A

Outdoor unit

ADDITIONAL REFRIGERANT CHARGE(R410A : g)

Model

Outdoor unit precharged

7m 10m

Refrigerant piping length (one way)

15m 20m 25m 30m

MUZ-GA50VA

MUZ-GA60VA

1,800 0 60 160 260 360 460

Model

Outdoor unit precharged

7m

Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)

10m

Refrigerant piping length (one way)

15m 20m 25m 30m

MUZ-GA71VA 2,000 0 165 440 715 990 1,265

Calculation : Xg=55g/m o (Refrigerant piping length(m)-7)

NOTE : Refrigerant piping exceeding 7m requires additional refrigerant charge according to the calculation.

14

OB389F--1qxp 07.9.3 5:07 PM Page 15

8 PERFORMANCE CURVES

MUZ-GA50VA

MUZ-GA60VA

MUZ-GA71VA

The standard 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.

(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 :

(2) Indoor outlet air wet-bulb temperature :

(3) Outdoor intake air dry-bulb temperature :

°C WB

°C WB

°C DB

}

Cooling

(4) Total input :

(5) Indoor intake air dry-bulb temperature :

W

°C DB

(6) Outdoor intake air wet-bulb temperature : °C WB

}

Heating

(7) Total input : W

Indoor air wet/dry-bulb temperature difference on the left side of the chart on this page and next page 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.

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

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 (twice) to start the EMERGENCY COOL (HEAT) 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 OUTDOOR UNIT

Wet and dry-bulb thermometers

Wet and dry-bulb thermometers

8-1. CAPACITY AND INPUT CURVES

8.7

8.0

7.3

6.6

5.9

5.3

8.7

8.0

7.3

6.6

5.9

5.3

10.7

9.8

8.9

8.0

7.2

6.4

Indoor intake air W et-bulb tem perature (

:

)

Outdoor intake air Dry-bulb temperature ( : )

Indoor intake air W et-bulb temperature (

: )

Outdoor intake air Dry-bulb temperature ( : )

15

OB389F--1qxp 07.9.3 5:07 PM Page 16

24.1

22.3

20.4

18.5

16.7

14.8

13.0

11.1

23.4

21.6

19.8

18.0

16.2

14.4

12.6

10.8

27.9

25.7

23.6

21.4

19.3

17.2

15.0

12.9

Ind oor intake air Dry-bulb tem perature (

:

)

Indoor intake air Dry-bulb temperature (

:

)

Outdoor intake air Wet-bulb temperature ( : ) Outdoor intake air Wet-bulb temperature ( : )

NOTE:The above broken lines are for the heating operation without any frost and defrost operation.

8-2. CAPACITY AND INPUT CORRECTION BY OPERATIONAL FREQUENCY OF COMPRESSOR

MUZ-GA50VA

1.5

Correction of Cooling capacity

1.5

Correction of Cooling total input

1.5

Correction of Heating capacity

1.5

Correction of Heating total input

1.0

0.5

1.0

0.5

1.0

0.5

1.0

0.5

0 50 100 150 (Hz)

The operational frequency of compressor

0 50 100 150 (Hz)


0 50 100 150 (Hz)


0 50 100 150 (Hz)


MUZ-GA60VA

1.5


1.5


1.5


1.5


1.0

1.0

1.0

1.0

0.5

0.5

0.5

0.5

0 50 100 150 (Hz)


0 50 100 150 (Hz)


0 50 100 150 (Hz)


0 50 100 150 (Hz)


1.5

MUZ-GA71VA


1.5


1.5


1.5


1.0

1.0

1.0

1.0

0.5

0.5

0.5

0.5

0 50 100 150 (Hz)


0 50 100 150 (Hz)


0 50 100 150 (Hz)


0 50 100 150 (Hz)


16

OB389F--1qxp 07.9.3 5:07 PM Page 17

8-3. TEST RUN OPERATION (How to operate fixed-frequency operation)

1. Press EMERGENCY OPERATION switch to COOL or HEAT mode (COOL : Press once, HEAT : Press twice).

2. Test run operation starts and continues to operate for 30 minutes.

3. Compressor operates at rated frequency in COOL mode or 58Hz in HEAT mode.

4. Indoor fan operates at High speed.

5. After 30 minutes, test run operation finishes and EMERGENCY OPERATION starts (Operation frequency of compressor varies).

6. To cancel test run operation (EMERGENCY OPERATION), press EMERGENCY OPERATION switch or any button on remote controller.

8-4. OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

COOL operation

1 Both indoor and outdoor unit are under the same temperature/humidity condition.

2 Operation : TEST RUN OPERATION (refer to 8-3.)

Dry-bulb temperature( : ) Relative humidity(%)

20 50

25 60

30 70

NOTE : The unit of pressure has been changed to MPa on the international system of units (SI unit system).


MUZ-GA50VA

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

9

0.9

8 0.8

8

MUZ-GA50VA

7

7 0.7

6 0.6

6

5 0.5

5

4 0.4

3 0.3

15 18 20 25 30 32 35(˚C)

4

15 18 20 25 30 32 35(˚C)

50 60 70 (%)

Ambient temperature(˚C) Ambient humidity(%)

50 60 70 (%)


MUZ-GA60VA

(kgf/ F [Gauge])

9

0.9

(MPa [Gauge])

8

0.8

7

0.7

6

0.6

5 0.5

9

8

7

MUZ-GA60VA

6

4 0.4

3 0.3

15 18 20 25 30 32 35(˚C)

5

15 18 20 25 30 32 35(˚C)

50 60 70 (%) 50 60 70 (%)

Ambient temperature(˚C) Ambient humidity(%) Ambient temperature(˚C) Ambient humidity(%)

MUZ-GA71VA MUZ-GA71VA

(kgf/ F [Gauge])

9

0.9

(MPa [Gauge])

13

8 0.8

11

7 0.7

6 0.6

9

5 0.5

7

4 0.4

3

0.3

15 18 20 25 30 32 35(˚C)

50 60 70 (%)


5

15 18 20 25 30 32 35(˚C)

50 60 70 (%)


17

OB389F--1qxp 07.9.3 5:07 PM Page 18

HEAT operation

1 Condition :

Dry bulb temperature (

°

C)

Wet bulb temperature (

°

C)

Indoor

20.0

14.5

2

1

2 Operation : TEST RUN OPERATION (refer to 8-3.)

Outdoor

7

6

15

12

20.0

14.5

MUZ-GA50VA

10.0

9.0

8.0

7.0

6.0

5.0

4.0

2 5 10 15 20 25(

Ambient temperature(˚C)

: )

MUZ-GA60VA

16.0

15.0

14.0

13.0

12.0

11.0

10.0

2 5 10 15 20 25(


: )

MUZ-GA71VA

12.0

11.0

10.0

9.0

8.0

7.0

6.0

2 5 10 15 20 25(


: )

18

OB389F--1qxp 07.9.3 5:07 PM Page 19

PERFORMANCE DATA COOL operation at Rated frequency

MSZ-GA50VA : MUZ-GA50VA

CAPACITY:5.0(kW) SHF:0.65

INPUT:1460(W)

INDOOR INDOOR

DB( :

31

31

31

32

32

32

32

32

NOTE

30

30

31

31

29

30

30

30

28

28

28

29

27

27

28

28

26

27

27

27

26

26

26

26

29

29

29

25

25

25

25

24

24

24

24

22

23

23

23

21

21

22

22

) WB( : )

21

Q SHC SHF INPUT Q

25

SHC SHF

OUTDOOR DB( : )

INPUT

27

Q SHC SHF INPUT

30

Q SHC SHF INPUT

18

20

18

20

22

18

20

22

5.88 2.76 0.47

6.13 2.14 0.35

5.88 3.00 0.51

6.13 2.39 0.39

6.38 1.72 0.27

5.88 3.23 0.55

6.13 2.63 0.43

6.38 1.98 0.31

1200

1260

1200

1260

1305

1200

1260

1305

5.63 2.64 0.47

5.88 2.06 0.35

5.63 2.87 0.51

5.88 2.29 0.39

6.15 1.66 0.27

5.63 3.09 0.55

5.88 2.53 0.43

6.15 1.91 0.31

1260

1335

1260

1335

1388

1260

1335

1388

5.40 2.54 0.47

5.70 2.00 0.35

5.40 2.75 0.51

5.70 2.22 0.39

6.00 1.62 0.27

5.40 2.97 0.55

5.70 2.45 0.43

6.00 1.86 0.31

1320

1365

1320

1365

1425

1320

1365

1425

18 5.88 3.70 0.63

1200 5.63 3.54 0.63

1260 5.40 3.40 0.63

1320

20 6.13 3.12 0.51

1260 5.88 3.00 0.51

1335 5.70 2.91 0.51

1365

22 6.38 2.49 0.39

1305 6.15 2.40 0.39

1388 6.00 2.34 0.39

1425

24 6.70 1.81 0.27

1365 6.45 1.74 0.27

1440 6.30 1.70 0.27

1485

18 5.88 3.94 0.67

1200 5.63 3.77 0.67

1260 5.40 3.62 0.67

1320

20 6.13 3.37 0.55

1260 5.88 3.23 0.55

1335 5.70 3.14 0.55

1365

22 6.38 2.74 0.43

1305 6.15 2.64 0.43

1388 6.00 2.58 0.43

1425

24 6.70 2.08 0.31

1365 6.45 2.00 0.31

1440 6.30 1.95 0.31

1485

26 6.90 1.31 0.19

1440 6.70 1.27 0.19

1515 6.60 1.25 0.19

1560

18 5.88 4.17 0.71

1200 5.63 3.99 0.71

1260 5.40 3.83 0.71

1320

20 6.13 3.61 0.59

1260 5.88 3.47 0.59

1335 5.70 3.36 0.59

1365

22 6.38 3.00 0.47

1305 6.15 2.89 0.47

1388 6.00 2.82 0.47

1425

5.20 2.44 0.47

1380

5.50 1.93 0.35

1425

5.20 2.65 0.51

1380

5.50 2.15 0.39

1425

5.75 1.55 0.27

1485

5.20 2.86 0.55

1380

5.50 2.37 0.43

1425

5.75 1.78 0.31

1485

5.20 3.07 0.59

1380 18 5.88 3.47 0.59

1200 5.63 3.32 0.59

1260 5.40 3.19 0.59

1320

20

22

24

6.13 2.88 0.47

6.38 2.23 0.35

6.70 1.54 0.23

1260

1305

1365

5.88 2.76 0.47

6.15 2.15 0.35

6.45 1.48 0.23

1335

1388

1440

5.70 2.68 0.47

6.00 2.10 0.35

6.30 1.45 0.23

1365

1425

1485

5.50 2.59 0.47

1425

5.75 2.01 0.35

1485

6.10 1.40 0.23

1560

5.20 3.28 0.63

1380

5.50 2.81 0.51

1425

5.75 2.24 0.39

1485

6.10 1.65 0.27

1560

5.20 3.48 0.67

1380

5.50 3.03 0.55

1425

5.75 2.47 0.43

1485

6.10 1.89 0.31

1560

6.40 1.22 0.19

1605

5.20 3.69 0.71

1380

5.50 3.25 0.59

1425

5.75 2.70 0.47

1485

6.10 2.14 0.35

1560 24 6.70 2.35 0.35

1365 6.45 2.26 0.35

1440 6.30 2.21 0.35

1485

26

18

20

22

24

26

18

20

22

24

6.90 1.59 0.23

5.88 4.41 0.75

6.13 3.86 0.63

6.38 3.25 0.51

6.70 2.61 0.39

6.90 1.86 0.27

5.88 4.64 0.79

6.13 4.10 0.67

6.38 3.51 0.55

6.70 2.88 0.43

1440

1200

1260

1305

1365

1440

1200

1260

1305

1365

6.70 1.54 0.23

5.63 4.22 0.75

5.88 3.70 0.63

6.15 3.14 0.51

6.45 2.52 0.39

6.70 1.81 0.27

5.63 4.44 0.79

5.88 3.94 0.67

6.15 3.38 0.55

6.45 2.77 0.43

1515

1260

1335

1388

1440

1515

1260

1335

1388

1440

6.60 1.52 0.23

5.40 4.05 0.75

5.70 3.59 0.63

6.00 3.06 0.51

6.30 2.46 0.39

6.60 1.78 0.27

5.40 4.27 0.79

5.70 3.82 0.67

6.00 3.30 0.55

6.30 2.71 0.43

1560

1320

1365

1425

1485

1560

1320

1365

1425

1485

6.40 1.47 0.23

1605

5.20 3.90 0.75

1380

5.50 3.47 0.63

1425

5.75 2.93 0.51

1485

6.10 2.38 0.39

1560

6.40 1.73 0.27

1605

5.20 4.11 0.79

1380

5.50 3.69 0.67

1425

5.75 3.16 0.55

1485

6.10 2.62 0.43

1560

26

18

20

22

24

6.90 2.14 0.31

5.88 4.88 0.83

6.13 4.35 0.71

6.38 3.76 0.59

6.70 3.15 0.47

1440

1200

1260

1305

1365

6.70 2.08 0.31

5.63 4.67 0.83

5.88 4.17 0.71

6.15 3.63 0.59

6.45 3.03 0.47

1515

1260

1335

1388

1440

6.60 2.05 0.31

5.40 4.48 0.83

5.70 4.05 0.71

6.00 3.54 0.59

6.30 2.96 0.47

1560

1320

1365

1425

1485

6.40 1.98 0.31

1605

5.20 4.32 0.83

1380

5.50 3.91 0.71

1425

5.75 3.39 0.59

1485

6.10 2.87 0.47

1560

26 6.90 2.42 0.35

1440 6.70 2.35 0.35

1515 6.60 2.31 0.35

1560 6.40 2.24 0.35

1605

18

20

22

24

5.88 5.11 0.87

6.13 4.59 0.75

6.38 4.02 0.63

6.70 3.42 0.51

1200

1260

1305

1365

5.63 4.89 0.87

5.88 4.41 0.75

6.15 3.87 0.63

6.45 3.29 0.51

1260

1335

1388

1440

5.40 4.70 0.87

5.70 4.28 0.75

6.00 3.78 0.63

6.30 3.21 0.51

1320

1365

1425

1485

5.20 4.52 0.87

1380

5.50 4.13 0.75

1425

5.75 3.62 0.63

1485

6.10 3.11 0.51

1560

26

18

6.90 2.69 0.39

5.88 5.35 0.91

1440

1200

6.70 2.61 0.39

5.63 5.12 0.91

1515

1260

6.60 2.57 0.39

5.40 4.91 0.91

1560

1320

6.40 2.50 0.39

1605

5.20 4.73 0.91

1380

20

22

24

6.13 4.84 0.79

6.38 4.27 0.67

6.70 3.69 0.55

1260

1305

1365

5.88 4.64 0.79

6.15 4.12 0.67

6.45 3.55 0.55

1335

1388

1440

5.70 4.50 0.79

6.00 4.02 0.67

6.30 3.47 0.55

1365

1425

1485

5.50 4.35 0.79

1425

5.75 3.85 0.67

1485

6.10 3.36 0.55

1560

26 6.90 2.97 0.43

Q : Total capacity (kW)

1440 6.70 2.88 0.43

1515 6.60 2.84 0.43

SHF : Sensible heat factor

1560 6.40 2.75 0.43

1605

DB : Dry-bulb temperature

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

19

OB389F--1qxp 07.9.3 5:07 PM Page 20




INPUT:1460(W)

31

32

32

32

32

32

NOTE

21

21

22

22

22

23

23

23

24

24

24

24

25

25

25

25

27

27

27

27

27

26

26

26

26

26

28

28

28

INDOOR INDOOR

DB(

28

28

29

29

29

29

29

30

30

30

30

30

31

31

31

31

: ) WB( : )

Q

35

SHC SHF INPUT

40

Q SHC SHF

OUTDOOR DB( : )

INPUT Q

43

SHC SHF INPUT Q

46

SHC SHF INPUT

18

20

18

20

22

4.90 2.30 0.47

5.15 1.80 0.35

4.90 2.50 0.51

5.15 2.01 0.39

5.45 1.47 0.27

1470

1530

1470

1530

1590

4.50 2.12 0.47

4.80 1.68 0.35

4.50 2.30 0.51

4.80 1.87 0.39

5.10 1.38 0.27

1560

1605

1560

1605

1680

4.33 2.03 0.47

4.63 1.62 0.35

4.33 2.21 0.51

1590

1650

1590

4.15 1.95 0.47

4.45 1.56 0.35

4.15 2.12 0.51

1620

1695

1620

4.63 1.80 0.39

1650 4.45 1.74 0.39

1695

4.93 1.33 0.27

1710 4.75 1.28 0.27

1740

18

20

22

4.90 2.70 0.55

1470 4.50 2.48 0.55

1560

5.15 2.21 0.43

1530 4.80 2.06 0.43

1605

5.45 1.69 0.31

1590 5.10 1.58 0.31

1680

4.33 2.38 0.55

1590 4.15 2.28 0.55

1620

4.63 1.99 0.43

1650 4.45 1.91 0.43

1695

4.93 1.53 0.31

1710 4.75 1.47 0.31

1740

4.33 2.55 0.59

1590 4.15 2.45 0.59

1620 18

20

22

24

18

20

22

24

18

20

22

24

26

18

20

22

24

26

4.90 2.89 0.59

1470 4.50 2.66 0.59

1560

5.15 2.42 0.47

1530 4.80 2.26 0.47

1605

5.45 1.91 0.35

1590 5.10 1.79 0.35

1680

5.75 1.32 0.23

1650 5.40 1.24 0.23

1725

4.90 3.09 0.63

5.45 2.34 0.43

5.45 2.56 0.47

5.75 2.01 0.35

6.05 1.39 0.23

1470

1590

1590

1650

1710

4.50 2.84 0.63

5.10 2.19 0.43

5.10 2.40 0.47

5.40 1.89 0.35

5.70 1.31 0.23

1560

5.15 2.63 0.51

1530 4.80 2.45 0.51

1605

5.45 2.13 0.39

1590 5.10 1.99 0.39

1680

5.75 1.55 0.27

1650 5.40 1.46 0.27

1725

4.90 3.28 0.67

1470 4.50 3.02 0.67

1560

5.15 2.83 0.55

1530 4.80 2.64 0.55

1605

1680

5.75 1.78 0.31

1650 5.40 1.67 0.31

1725

6.05 1.15 0.19

1710 5.70 1.08 0.19

1785

4.90 3.48 0.71

1470 4.50 3.20 0.71

1560

5.15 3.04 0.59

1530 4.80 2.83 0.59

1605

1680

1725

1785

4.63 2.17 0.47

1650 4.45 2.09 0.47

1695

4.93 1.72 0.35

5.25 1.21 0.23

1710

1763

4.75 1.66 0.35

5.10 1.17 0.23

1740

1800

4.33 2.72 0.63

1590 4.15 2.61 0.63

1620

4.63 2.36 0.51

4.93 1.92 0.39

5.25 1.42 0.27

4.33 2.90 0.67

4.63 2.54 0.55

4.93 2.12 0.43

5.25 1.63 0.31

1650

1710

1763

1590

1650

1710

1763

4.45 2.27 0.51

4.75 1.85 0.39

5.10 1.38 0.27

4.15 2.78 0.67

4.45 2.45 0.55

4.75 2.04 0.43

5.10 1.58 0.31

1695

1740

1800

1620

1695

1740

1800

5.53 1.05 0.19

1823 5.35 1.02 0.19

1860

4.33 3.07 0.71

4.63 2.73 0.59

1590

1650

4.15 2.95 0.71

4.45 2.63 0.59

1620

1695

4.93 2.31 0.47

1710 4.75 2.23 0.47

1740

5.25 1.84 0.35

1763 5.10 1.79 0.35

1800

5.53 1.27 0.23

1823 5.35 1.23 0.23

1860

4.33 3.24 0.75

1590 4.15 3.11 0.75

1620 18

20

22

24

26

4.90 3.68 0.75

1470 4.50 3.38 0.75

1560

5.15 3.24 0.63

1530 4.80 3.02 0.63

1605

5.45 2.78 0.51

1590 5.10 2.60 0.51

1680

5.75 2.24 0.39

6.05 1.63 0.27

1650

1710

5.40 2.11 0.39

5.70 1.54 0.27

1725

1785

4.63 2.91 0.63

1650 4.45 2.80 0.63

1695

4.93 2.51 0.51

1710 4.75 2.42 0.51

1740

5.25 2.05 0.39

1763 5.10 1.99 0.39

1800

5.53 1.49 0.27

1823 5.35 1.44 0.27

1860

4.33 3.42 0.79

1590 4.15 3.28 0.79

1620 18

20

22

24

26

18

4.90 3.87 0.79

5.15 3.45 0.67

1470

1530

4.50 3.56 0.79

4.80 3.22 0.67

1560

1605

5.45 3.00 0.55

1590 5.10 2.81 0.55

1680

5.75 2.47 0.43

1650 5.40 2.32 0.43

1725

6.05 1.88 0.31

1710 5.70 1.77 0.31

1785

4.90 4.07 0.83

1470 4.50 3.74 0.83

1560

5.15 3.66 0.71

1530 4.80 3.41 0.71

1605

4.63 3.10 0.67

1650 4.45 2.98 0.67

1695

4.93 2.71 0.55

1710 4.75 2.61 0.55

1740

5.25 2.26 0.43

1763 5.10 2.19 0.43

1800

5.53 1.71 0.31

1823 5.35 1.66 0.31

1860

4.33 3.59 0.83

1590 4.15 3.44 0.83

1620

4.63 3.28 0.71

1650 4.45 3.16 0.71

1695 20

22

24

5.45 3.22 0.59

1590 5.10 3.01 0.59

1680

5.75 2.70 0.47

1650 5.40 2.54 0.47

1725

4.93 2.91 0.59

1710 4.75 2.80 0.59

1740

5.25 2.47 0.47

1763 5.10 2.40 0.47

1800

26

18

20

22

24

26

18

20

6.05 2.12 0.35

1710 5.70 2.00 0.35

1785

4.90 4.26 0.87

5.45 3.43 0.63

5.75 2.93 0.51

1650 5.40 2.75 0.51

1725

6.05 2.36 0.39

5.15 4.07 0.79

1470

1590

1710

1530

4.50 3.92 0.87

5.10 3.21 0.63

5.70 2.22 0.39

4.80 3.79 0.79

1560

5.15 3.86 0.75

1530 4.80 3.60 0.75

1605

1680

1785

4.90 4.46 0.91

1470 4.50 4.10 0.91

1560

1605

5.53 1.93 0.35

4.33 3.76 0.87

4.63 3.47 0.75

4.93 3.10 0.63

5.25 2.68 0.51

5.53 2.15 0.39

4.33 3.94 0.91

1823

1590

1650

1710

1763

1823

1590

5.35 1.87 0.35

4.15 3.61 0.87

4.45 3.34 0.75

4.75 2.99 0.63

5.10 2.60 0.51

5.35 2.09 0.39

4.15 3.78 0.91

1860

1620

1695

1740

1800

1860

1620

4.63 3.65 0.79

1650 4.45 3.52 0.79

1695

22

24

5.45 3.65 0.67

5.75 3.16 0.55

1590

1650

5.10 3.42 0.67

5.40 2.97 0.55

1680

1725

4.93 3.30 0.67

1710 4.75 3.18 0.67

1740

5.25 2.89 0.55

1763 5.10 2.81 0.55

1800

5.53 2.38 0.43

1823 5.35 2.30 0.43

1860 26 6.05 2.60 0.43

1710 5.70 2.45 0.43

1785

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


20

OB389F--1qxp 07.9.3 5:07 PM Page 21




INPUT:1930(W)

24

24

24

24

25

25

25

25

27

27

27

27

27

26

26

26

26

26

28

28

28

INDOOR INDOOR

DB(

21

21

22

22

22

23

23

23

28

28

29

29

29

29

29

30

30

30

30

30

31

31

31

31

31

32

32

32

32

32

:

NOTE

) WB( : )

Q

21

SHC SHF INPUT

25

Q SHC SHF

OUTDOOR DB( : )

INPUT Q

27

SHC SHF INPUT Q

30

SHC SHF INPUT

18

20

18

20

22

18

20

22

7.05

7.35 2.50 0.34

7.05 3.53 0.50

1560

1638

1560

6.75 3.11 0.46

7.05 2.40 0.34

6.75 3.38 0.50

1638

1736

1638

6.48 2.98 0.46

6.84 2.33 0.34

6.48 3.24 0.50

1716

1775

1716

7.35 2.79 0.38

1638 7.05 2.68 0.38

1736 6.84 2.60 0.38

1775

7.65 1.99 0.26

1697 7.38 1.92 0.26

1804 7.20 1.87 0.26

1853

6.24 2.87 0.46

1794

6.60 2.24 0.34

1853

6.24 3.12 0.50

1794

6.60 2.51 0.38

1853

6.90 1.79 0.26

1931

6.24 3.37 0.54

1794 7.05 3.81 0.54

1560 6.75 3.65 0.54

1638 6.48 3.50 0.54

1716

7.35 3.09 0.42

7.65 2.30 0.30

1638

1697

7.05 2.96 0.42

7.38 2.21 0.30

1736

1804

6.84 2.87 0.42

7.20 2.16 0.30

1775

1853

6.60 2.77 0.42

1853

6.90 2.07 0.30

1931

18

20

22

24

18

7.05 4.09 0.58

7.35 3.38 0.46

7.65 2.60 0.34

8.04 1.77 0.22

1560

1638

1697

1775

6.75 3.92 0.58

7.05 3.24 0.46

7.38 2.51 0.34

7.74 1.70 0.22

1638

1736

1804

1872

6.48 3.76 0.58

6.84 3.15 0.46

7.20 2.45 0.34

7.56 1.66 0.22

1716

1775

1853

1931

6.24 3.62 0.58

6.60 3.04 0.46

6.90 2.35 0.34

7.32 1.61 0.22

1794

1853

1931

2028

20

22

24

7.05 4.37 0.62

7.35 3.68 0.50

7.65 2.91 0.38

8.04 2.09 0.26

1560

1638

1697

1775

6.75 4.19 0.62

7.05 3.53 0.50

7.38 2.80 0.38

7.74 2.01 0.26

1638

1736

1804

1872

6.48 4.02 0.62

6.84 3.42 0.50

7.20 2.74 0.38

7.56 1.97 0.26

1716

1775

1853

1931

6.24 3.87 0.62

1794

6.60 3.30 0.50

1853

6.90 2.62 0.38

1931

7.32 1.90 0.26

2028

6.24 4.12 0.66

1794

6.60 3.56 0.54

1853

18

20

22

24

26

7.05 4.65 0.66

1560 6.75 4.46 0.66

1638 6.48 4.28 0.66

1716

7.35 3.97 0.54

1638 7.05 3.81 0.54

1736 6.84 3.69 0.54

1775

7.65 3.21 0.42

1697 7.38 3.10 0.42

1804 7.20 3.02 0.42

1853

8.04 2.41 0.30

1775 7.74 2.32 0.30

1872 7.56 2.27 0.30

1931

8.28 1.49 0.18

1872 8.04 1.45 0.18

1970 7.92 1.43 0.18

2028

7.05 4.94 0.70

1560 6.75 4.73 0.70

1638 6.48 4.54 0.70

1716

6.90 2.90 0.42

1931

7.32 2.20 0.30

2028

7.68 1.38 0.18

2087

6.24 4.37 0.70

1794 18

20

22

24

26

18

20

22

24

26

18

20

22

24

7.35 4.26 0.58

7.65 3.52 0.46

1638

1697

7.05 4.09 0.58

7.38 3.39 0.46

1736

1804

6.84 3.97 0.58

7.20 3.31 0.46

1775

1853

8.04 2.73 0.34

1775 7.74 2.63 0.34

1872 7.56 2.57 0.34

1931

8.28 1.82 0.22

1872 8.04 1.77 0.22

1970 7.92 1.74 0.22

2028

7.05 5.22 0.74

1560 6.75 5.00 0.74

1638 6.48 4.80 0.74

1716

7.35 4.56 0.62

1638 7.05 4.37 0.62

1736 6.84 4.24 0.62

1775

7.65 3.83 0.50

1697 7.38 3.69 0.50

1804 7.20 3.60 0.50

1853

8.04 3.06 0.38

1775 7.74 2.94 0.38

1872 7.56 2.87 0.38

1931

8.28 2.15 0.26

1872 8.04 2.09 0.26

1970 7.92 2.06 0.26

2028

7.05 5.50 0.78

7.35 4.85 0.66

7.65 4.13 0.54

8.04 3.38 0.42

1560

1638

1697

1775

6.75 5.27 0.78

7.05 4.65 0.66

7.38 3.99 0.54

7.74 3.25 0.42

1638

1736

1804

1872

6.48 5.05 0.78

6.84 4.51 0.66

7.20 3.89 0.54

7.56 3.18 0.42

1716

1775

1853

1931

6.60 3.83 0.58

1853

6.90 3.17 0.46

1931

7.32 2.49 0.34

7.68 1.69 0.22

6.24 4.62 0.74

6.60 4.09 0.62

6.90 3.45 0.50

7.32 2.78 0.38

7.68 2.00 0.26

2028

2087

1794

1853

1931

2028

2087

6.24 4.87 0.78

1794

6.60 4.36 0.66

1853

6.90 3.73 0.54

1931

7.32 3.07 0.42

2028

26

18

20

22

24

26

18

20

22

24

26

18

20

22

24

26

8.28 2.48 0.30

1872 8.04 2.41 0.30

1970 7.92 2.38 0.30

2028

7.05 5.78 0.82

1560 6.75 5.54 0.82

1638 6.48 5.31 0.82

1716

7.35 5.15 0.70

1638 7.05 4.94 0.70

1736 6.84 4.79 0.70

1775

7.65 4.44 0.58

1697 7.38 4.28 0.58

1804 7.20 4.18 0.58

1853

8.04 3.70 0.46

1775 7.74 3.56 0.46

1872 7.56 3.48 0.46

1931

8.28 2.82 0.34

1872 8.04 2.73 0.34

1970 7.92 2.69 0.34

2028

7.05 6.06 0.86

1560 6.75 5.81 0.86

1638 6.48 5.57 0.86

1716

7.35 5.44 0.74

1638 7.05 5.22 0.74

1736 6.84 5.06 0.74

1775

7.65 4.74 0.62

1697 7.38 4.58 0.62

1804 7.20 4.46 0.62

1853

8.04 4.02 0.50

1775 7.74 3.87 0.50

1872 7.56 3.78 0.50

1931

8.28 3.15 0.38

1872 8.04 3.06 0.38

1970 7.92 3.01 0.38

2028

7.05 6.35 0.90

1560 6.75 6.08 0.90

1638 6.48 5.83 0.90

1716

7.35 5.73 0.78

7.65 5.05 0.66

8.04 4.34 0.54

8.28 3.48 0.42

1638

1697

1775

1872

7.05 5.50 0.78

7.38 4.87 0.66

7.74 4.18 0.54

8.04 3.38 0.42

1736

1804

1872

1970

6.84 5.34 0.78

7.20 4.75 0.66

7.56 4.08 0.54

7.92 3.33 0.42

1775

1853

1931

2028

7.68 2.30 0.30

2087

6.24 5.12 0.82

1794

6.60 4.62 0.70

6.90 4.00 0.58

1853

1931

7.32 3.37 0.46

2028

7.68 2.61 0.34

2087

6.24 5.37 0.86

6.60 4.88 0.74

1794

1853

6.90 4.28 0.62

1931

7.32 3.66 0.50

2028

7.68 2.92 0.38

6.24 5.62 0.90

2087

1794

6.60 5.15 0.78

1853

6.90 4.55 0.66

1931

7.32 3.95 0.54

2028

7.68 3.23 0.42

2087



21

OB389F--1qxp 07.9.3 5:07 PM Page 22




INPUT:1930(W)

INDOOR INDOOR

DB( : ) WB( : )

Q

35

SHC SHF INPUT

40

Q SHC SHF

OUTDOOR DB( : )

INPUT Q

43

SHC SHF INPUT Q

46

SHC SHF INPUT

21

21

18

20

5.88 2.70 0.46

1911 5.40 2.48 0.46

2028

6.18 2.10 0.34

1989 5.76 1.96 0.34

2087

5.19 2.39 0.46

5.55 1.89 0.34

2067

2145

4.98 2.29 0.46

5.34 1.82 0.34

2106

2204

22

22

22

23

23

23

18

20

22

18

20

22

5.88 2.94 0.50

6.18 2.35 0.38

1911

1989

5.40 2.70 0.50

5.76 2.19 0.38

2028

2087

6.54 1.70 0.26

2067 6.12 1.59 0.26

2184

5.88 3.18 0.54

1911 5.40 2.92 0.54

2028

6.18 2.60 0.42

1989 5.76 2.42 0.42

2087

6.54 1.96 0.30

2067 6.12 1.84 0.30

2184

5.19 2.60 0.50

2067 4.98 2.49 0.50

2106

5.55 2.11 0.38

2145 5.34 2.03 0.38

2204

5.91 1.54 0.26

5.19 2.80 0.54

5.55 2.33 0.42

5.91 1.77 0.30

2223

2067

2145

2223

5.70 1.48 0.26

4.98 2.69 0.54

5.34 2.24 0.42

5.70 1.71 0.30

2262

2106

2204

2262

24

24

18

20

5.88 3.41 0.58

1911 5.40 3.13 0.58

2028

6.18 2.84 0.46

1989 5.76 2.65 0.46

2087

5.19 3.01 0.58

5.55 2.55 0.46

2067

2145

4.98 2.89 0.58

5.34 2.46 0.46

2106

2204

24

24

25

25

25

25

22

24

18

20

22

24

6.54 2.22 0.34

6.90 1.52 0.22

5.88 3.65 0.62

6.18 3.09 0.50

2067

2145

1911

1989

6.12 2.08 0.34

6.48 1.43 0.22

5.40 3.35 0.62

5.76 2.88 0.50

2184

2243

2028

2087

6.54 2.49 0.38

2067 6.12 2.33 0.38

2184

6.90 1.79 0.26

2145 6.48 1.68 0.26

2243

5.91 2.01 0.34

6.30 1.39 0.22

2223

2291

5.70 1.94 0.34

6.12 1.35 0.22

2262

2340

5.19 3.22 0.62

2067 4.98 3.09 0.62

2106

5.55 2.78 0.50

5.91 2.25 0.38

6.30 1.64 0.26

2145

2223

2291

5.34 2.67 0.50

5.70 2.17 0.38

6.12 1.59 0.26

2204

2262

2340

26

26

18

20

5.88 3.88 0.66

1911 5.40 3.56 0.66

2028

6.18 3.34 0.54

1989 5.76 3.11 0.54

2087

5.19 3.43 0.66

5.55 3.00 0.54

2067

2145

4.98 3.29 0.66

5.34 2.88 0.54

2106

2204

26

26

26

27

27

27

27

27

22

24

26

18

20

22

24

26

6.54 2.75 0.42

6.90 2.07 0.30

7.26 1.31 0.18

5.88 4.12 0.70

6.18 3.58 0.58

6.54 3.01 0.46

2067

2145

2223

1911

1989

2067

6.12 2.57 0.42

6.48 1.94 0.30

6.84 1.23 0.18

5.40 3.78 0.70

5.76 3.34 0.58

6.12 2.82 0.46

2184

2243

2321

2028

2087

2184

6.90 2.35 0.34

2145 6.48 2.20 0.34

2243

7.26 1.60 0.22

2223 6.84 1.50 0.22

2321

5.91 2.48 0.42

6.30 1.89 0.30

2223

2291

5.70 2.39 0.42

6.12 1.84 0.30

2262

2340

6.63 1.19 0.18

2369 6.42 1.16 0.18

2418

5.19 3.63 0.70

2067 4.98 3.49 0.70

2106

5.55 3.22 0.58

2145 5.34 3.10 0.58

2204

5.91 2.72 0.46

6.30 2.14 0.34

6.63 1.46 0.22

2223

2291

2369

5.70 2.62 0.46

6.12 2.08 0.34

6.42 1.41 0.22

2262

2340

2418

28

28

28

18

20

22

5.88 4.35 0.74

6.18 3.83 0.62

1911

1989

5.40 4.00 0.74

5.76 3.57 0.62

2028

2087

5.19 3.84 0.74

5.55 3.44 0.62

2067

2145

4.98 3.69 0.74

5.34 3.31 0.62

2106

2204

28

28

29

29

29

29

29

30

30

30

30

30

24

26

18

20

22

24

26

18

20

22

24

26

6.54 3.27 0.50

2067 6.12 3.06 0.50

2184

6.90 2.62 0.38

7.26 1.89 0.26

2223 6.84 1.78 0.26

2321

5.88 4.59 0.78

1911 5.40 4.21 0.78

2028

6.18 4.08 0.66

1989 5.76 3.80 0.66

2087

6.54 3.53 0.54

6.90 2.90 0.42

7.26 2.18 0.30

5.88 4.82 0.82

6.18 4.33 0.70

6.54 3.79 0.58

6.90 3.17 0.46

2145

2067

2145

2223

1911

1989

2067

2145

6.48 2.46 0.38

6.12 3.30 0.54

6.48 2.72 0.42

6.84 2.05 0.30

5.40 4.43 0.82

5.76 4.03 0.70

6.12 3.55 0.58

6.48 2.98 0.46

2243

2184

2243

2321

2028

2087

2184

2243

5.91 2.96 0.50

6.30 2.39 0.38

6.63 1.72 0.26

5.19 4.05 0.78

5.55 3.66 0.66

5.91 3.19 0.54

2223

2291

2369

2067

2145

5.70 2.85 0.50

6.12 2.33 0.38

6.42 1.67 0.26

4.98 3.88 0.78

5.34 3.52 0.66

2262

2340

2418

2106

2204

6.30 2.65 0.42

2291 6.12 2.57 0.42

2340

6.63 1.99 0.30

5.19 4.26 0.82

2067 4.98 4.08 0.82

2106

5.55 3.89 0.70

5.91 3.43 0.58

6.30 2.90 0.46

2223

2369

2145

2223

2291

5.70 3.08 0.54

6.42 1.93 0.30

5.34 3.74 0.70

5.70 3.31 0.58

6.12 2.82 0.46

2262

2418

2204

2262

2340

31

31

18

20

7.26 2.47 0.34

2223 6.84 2.33 0.34

2321

5.88 5.06 0.86

6.18 4.57 0.74

1911

1989

5.40 4.64 0.86

5.76 4.26 0.74

2028

2087

6.63 2.25 0.34

2369 6.42 2.18 0.34

2418

5.19 4.46 0.86

2067 4.98 4.28 0.86

2106

5.55 4.11 0.74

2145 5.34 3.95 0.74

2204

31

31

22

24

6.54 4.05 0.62

2067 6.12 3.79 0.62

2184

6.90 3.45 0.50

2145 6.48 3.24 0.50

2243

5.91 3.66 0.62

2223 5.70 3.53 0.62

2262

6.30 3.15 0.50

2291 6.12 3.06 0.50

2340

31

32

26

18

7.26 2.76 0.38

2223 6.84 2.60 0.38

2321

5.88 5.29 0.90

1911 5.40 4.86 0.90

2028

6.63 2.52 0.38

5.19 4.67 0.90

2369

2067

6.42 2.44 0.38

4.98 4.48 0.90

2418

2106

32 20 6.18 4.82 0.78

1989 5.76 4.49 0.78

2087 5.55 4.33 0.78

2145 5.34 4.17 0.78

2204

32

32

22

24

6.54 4.32 0.66

2067 6.12 4.04 0.66

2184

6.90 3.73 0.54

2145 6.48 3.50 0.54

2243

5.91 3.90 0.66

6.30 3.40 0.54

2223

2291

5.70 3.76 0.66

6.12 3.30 0.54

2262

2340

32 26 7.26 3.05 0.42

2223 6.84 2.87 0.42

2321

NOTE Q : Total capacity (kW)

6.63 2.78 0.42

SHF : Sensible heat factor

2369 6.42 2.70 0.42

DB : Dry-bulb temperature

2418


22

OB389F--1qxp 07.9.3 5:07 PM Page 23




INPUT:2420(W)

INDOOR INDOOR

DB(

32

32

32

32

31

31

31

32

30

30

31

31

29

30

30

30

28

28

28

29

27

27

28

28

26

27

27

27

26

26

26

26

29

29

29

25

25

25

25

24

24

24

24

22

23

23

23

21

21

22

22

:

NOTE

) WB( : )

21

Q SHC SHF INPUT Q

25

SHC SHF

OUTDOOR DB( : )

INPUT

27

Q SHC SHF INPUT

30

Q SHC SHF INPUT

22

18

20

22

18

20

18

20

8.34 3.75 0.45

8.70 2.87 0.33

8.34 4.09 0.49

8.70 3.22 0.37

9.05 2.26 0.25

1952

2050

1952

2050

2123

7.99 3.59 0.45

8.34 2.75 0.33

7.99 3.91 0.49

8.34 3.09 0.37

8.73 2.18 0.25

2050

2172

2050

2172

2257

7.67 3.45 0.45

8.09 2.67 0.33

7.67 3.76 0.49

8.09 2.99 0.37

8.52 2.13 0.25

2147

2220

2147

2220

2318

7.38 3.32 0.45

7.81 2.58 0.33

2245

2318

7.38 3.62 0.49

2245

7.81 2.89 0.37

2318

8.17 2.04 0.25

2416

7.38 3.91 0.53

2245

18

20

22

24

8.34 4.42 0.53

1952 7.99 4.23 0.53

2050 7.67 4.06 0.53

2147

8.70 3.57 0.41

9.05 2.63 0.29

8.34 4.76 0.57

8.70 3.91 0.45

9.05 2.99 0.33

9.51 2.00 0.21

2050

2123

1952

2050

2123

2220

8.34 3.42 0.41

8.73 2.53 0.29

7.99 4.55 0.57

8.34 3.75 0.45

8.73 2.88 0.33

9.16 1.92 0.21

2172

2257

2050

2172

2257

2342

8.09 3.32 0.41

8.52 2.47 0.29

7.67 4.37 0.57

8.09 3.64 0.45

8.52 2.81 0.33

8.95 1.88 0.21

2220

2318

2147

2220

2318

2416

7.81 3.20 0.41

2318

8.17 2.37 0.29

2416

7.38 4.21 0.57

7.81 3.51 0.45

8.17 2.69 0.33

8.66 1.82 0.21

2245

2318

2416

2538

18

20

8.34 5.09 0.61

1952 7.99 4.87 0.61

2050 7.67 4.68 0.61

2147

8.70 4.26 0.49

2050 8.34 4.09 0.49

2172 8.09 3.97 0.49

2220

7.38 4.50 0.61

2245

7.81 3.83 0.49

2318

22

24

9.05 3.35 0.37

2123 8.73 3.23 0.37

2257 8.52 3.15 0.37

2318

9.51 2.38 0.25

2220 9.16 2.29 0.25

2342 8.95 2.24 0.25

2416

8.17 3.02 0.37

2416

8.66 2.17 0.25

2538

18

20

8.34 5.42 0.65

1952 7.99 5.19 0.65

2050 7.67 4.98 0.65

2147

8.70 4.61 0.53

2050 8.34 4.42 0.53

2172 8.09 4.29 0.53

2220

7.38 4.80 0.65

2245

7.81 4.14 0.53

2318

22

24

26

18

20

22

9.05 3.71 0.41

9.51 2.76 0.29

2220 9.16 2.66 0.29

2342 8.95 2.59 0.29

2416

9.80 1.67 0.17

8.34 5.76 0.69

1952 7.99 5.51 0.69

2050 7.67 5.29 0.69

2147

8.70 4.96 0.57

2123

2342

2050

8.73 3.58 0.41

9.51 1.62 0.17

8.34 4.76 0.57

2257

2464

2172

8.52 3.49 0.41

9.37 1.59 0.17

8.09 4.61 0.57

2318

2538

2220

9.05 4.07 0.45

2123 8.73 3.93 0.45

2257 8.52 3.83 0.45

2318

8.17 3.35 0.41

8.66 2.51 0.29

9.09 1.54 0.17

7.38 5.09 0.69

2416

2538

2611

2245

7.81 4.45 0.57

2318

8.17 3.67 0.45

2416

24

26

9.51 3.14 0.33

9.80 2.06 0.21

2220

2342

9.16 3.02 0.33

9.51 2.00 0.21

2342

2464

8.95 2.95 0.33

9.37 1.97 0.21

2416

2538

8.66 2.86 0.33

2538

9.09 1.91 0.21

2611

18

20

8.34 6.09 0.73

1952 7.99 5.83 0.73

2050 7.67 5.60 0.73

2147

8.70 5.31 0.61

2050 8.34 5.09 0.61

2172 8.09 4.94 0.61

2220

7.38 5.39 0.73

2245

7.81 4.76 0.61

2318

22

24

9.05 4.44 0.49

2123 8.73 4.28 0.49

2257 8.52 4.17 0.49

2318

9.51 3.52 0.37

2220 9.16 3.39 0.37

2342 8.95 3.31 0.37

2416

8.17 4.00 0.49

2416

8.66 3.20 0.37

2538

26

18

9.80 2.45 0.25

8.34 6.42 0.77

2342

1952

9.51 2.38 0.25

7.99 6.15 0.77

2464

2050

9.37 2.34 0.25

7.67 5.90 0.77

2538

2147

9.09 2.27 0.25

2611

7.38 5.69 0.77

2245

20

22

8.70 5.65 0.65

2050 8.34 5.42 0.65

2172 8.09 5.26 0.65

2220

9.05 4.80 0.53

2123 8.73 4.63 0.53

2257 8.52 4.52 0.53

2318

7.81 5.08 0.65

2318

8.17 4.33 0.53

2416

24

26

18

20

22

24

26

18

20

22

24

26

18

20

22

24

26

9.51 3.90 0.41

2220 9.16 3.76 0.41

2342 8.95 3.67 0.41

2416

9.80 2.84 0.29

8.34 6.76 0.81

1952 7.99 6.47 0.81

2050 7.67 6.21 0.81

2147

8.70 6.00 0.69

9.05 5.16 0.57

2123 8.73 4.98 0.57

2257 8.52 4.86 0.57

2318

9.51 4.28 0.45

9.80 3.23 0.33

2342 9.51 3.14 0.33

2464 9.37 3.09 0.33

2538

8.34 7.09 0.85

8.70 6.35 0.73

2050 8.34 6.09 0.73

2172 8.09 5.91 0.73

2220

9.05 5.52 0.61

9.51 4.66 0.49

2220 9.16 4.49 0.49

2342 8.95 4.38 0.49

2416

9.80 3.63 0.37

8.34 7.42 0.89

1952 7.99 7.11 0.89

2050 7.67 6.82 0.89

2147

8.70 6.70 0.77

9.05 5.88 0.65

2123 8.73 5.68 0.65

2257 8.52 5.54 0.65

2318

9.51 5.04 0.53

2342

2050

2220

1952

2123

2342

2050

2220

9.51 2.76 0.29

8.34 5.76 0.69

9.16 4.12 0.45

7.99 6.79 0.85

8.73 5.33 0.61

9.51 3.52 0.37

8.34 6.42 0.77

9.16 4.85 0.53

2464

2172

2342

2050

2257

2464

2172

2342

9.37 2.72 0.29

8.09 5.58 0.69

8.95 4.03 0.45

7.67 6.52 0.85

8.52 5.20 0.61

9.37 3.47 0.37

8.09 6.23 0.77

8.95 4.74 0.53

2538

2220

2416

2147

2318

2538

2220

2416

9.80 4.02 0.41

2342 9.51 3.90 0.41

2464 9.37 3.84 0.41

2538

8.66 3.55 0.41

9.09 2.64 0.29

7.38 5.98 0.81

7.81 5.39 0.69

8.17 4.65 0.57

8.66 3.90 0.45

9.09 3.00 0.33

7.38 6.28 0.85

7.81 5.70 0.73

8.17 4.98 0.61

8.66 4.24 0.49

9.09 3.36 0.37

7.38 6.57 0.89

7.81 6.01 0.77

8.17 5.31 0.65

8.66 4.59 0.53

2538

2611

2245

2318

2416

2538

2611

2245

2318

2416

2538

2611

2245

2318

2416

2538

9.09 3.73 0.41

2611



23

OB389F--1qxp 07.9.3 5:07 PM Page 24




INPUT:2420(W)

INDOOR INDOOR

DB( : ) WB( : )

35

Q SHC SHF INPUT Q

40

SHC SHF

OUTDOOR DB( : )

INPUT

43

Q SHC SHF INPUT

46

Q SHC SHF INPUT

21

21

22

22

22

23

18

20

18

20

22

18

6.96 3.13 0.45

7.31 2.41 0.33

6.96 3.41 0.49

7.31 2.71 0.37

2391

2489

2391

2489

6.39 2.88 0.45

6.82 2.25 0.33

6.39 3.13 0.49

6.82 2.52 0.37

2538

2611

2538

2611

7.74 1.93 0.25

2586 7.24 1.81 0.25

2733

6.96 3.69 0.53

2391 6.39 3.39 0.53

2538

6.14 2.76 0.45

6.57 2.17 0.33

2586

2684

5.89 2.65 0.45

6.32 2.09 0.33

2635

2757

6.14 3.01 0.49

2586 5.89 2.89 0.49

2635

6.57 2.43 0.37

2684 6.32 2.34 0.37

2757

6.99 1.75 0.25

2782 6.75 1.69 0.25

2830

6.14 3.25 0.53

2586 5.89 3.12 0.53

2635

23

23

20

22

7.31 3.00 0.41

7.74 2.24 0.29

2489

2586

6.82 2.79 0.41

7.24 2.10 0.29

2611

2733

6.57 2.69 0.41

2684 6.32 2.59 0.41

2757

6.99 2.03 0.29

2782 6.75 1.96 0.29

2830

6.14 3.50 0.57

2586 5.89 3.36 0.57

2635 24

24

24

24

25

25

25

25

18

20

22

24

18

20

22

24

6.96 3.97 0.57

7.31 3.29 0.45

7.74 2.55 0.33

8.17 1.71 0.21

6.96 4.24 0.61

7.31 3.58 0.49

2391

2489

2586

2684

2391

2489

6.39 3.64 0.57

6.82 3.07 0.45

7.24 2.39 0.33

7.67 1.61 0.21

6.39 3.90 0.61

6.82 3.34 0.49

2538

2611

2733

2806

2538

2611

7.74 2.86 0.37

2586 7.24 2.68 0.37

2733

8.17 2.04 0.25

2684 7.67 1.92 0.25

2806

6.57 2.96 0.45

2684 6.32 2.84 0.45

2757

6.99 2.31 0.33

2782 6.75 2.23 0.33

2830

7.46 1.57 0.21

2867 7.24 1.52 0.21

2928

6.14 3.75 0.61

2586 5.89 3.59 0.61

2635

6.57 3.22 0.49

2684 6.32 3.10 0.49

2757

6.99 2.59 0.37

7.46 1.86 0.25

2782

2867

6.75 2.50 0.37

7.24 1.81 0.25

2830

2928

26

26

18

20

6.96 4.52 0.65

7.31 3.88 0.53

2391

2489

6.39 4.15 0.65

6.82 3.61 0.53

2538

2611

6.14 3.99 0.65

2586 5.89 3.83 0.65

2635

6.57 3.48 0.53

2684 6.32 3.35 0.53

2757

6.99 2.87 0.41

2782 6.75 2.77 0.41

2830 26

26

26

27

27

27

27

27

22

24

26

18

20

22

24

26

7.74 3.17 0.41

8.17 2.37 0.29

8.59 1.46 0.17

6.96 4.80 0.69

7.31 4.17 0.57

7.74 3.48 0.45

2586

2684

2782

2391

2489

2586

7.24 2.97 0.41

7.67 2.22 0.29

8.09 1.38 0.17

6.39 4.41 0.69

6.82 3.89 0.57

7.24 3.26 0.45

2733

2806

2904

2538

2611

2733

8.17 2.69 0.33

2684 7.67 2.53 0.33

2806

8.59 1.80 0.21

2782 8.09 1.70 0.21

2904

7.46 2.16 0.29

2867 7.24 2.10 0.29

2928

7.85 1.33 0.17

2965 7.60 1.29 0.17

3026

6.14 4.24 0.69

2586 5.89 4.07 0.69

2635

6.57 3.74 0.57

2684 6.32 3.60 0.57

2757

6.99 3.15 0.45

2782 6.75 3.04 0.45

2830

7.46 2.46 0.33

7.85 1.65 0.21

2867

2965

7.24 2.39 0.33

7.60 1.60 0.21

2928

3026

28

28

18

20

6.96 5.08 0.73

2391 6.39 4.66 0.73

2538

7.31 4.46 0.61

2489 6.82 4.16 0.61

2611

6.14 4.48 0.73

2586 5.89 4.30 0.73

2635

6.57 4.01 0.61

2684 6.32 3.85 0.61

2757

28

28

22

24

7.74 3.79 0.49

8.17 3.02 0.37

2586

2684

7.24 3.55 0.49

7.67 2.84 0.37

2733

2806

6.99 3.43 0.49

2782 6.75 3.31 0.49

2830

7.46 2.76 0.37

2867 7.24 2.68 0.37

2928

7.85 1.96 0.25

2965 7.60 1.90 0.25

3026 28

29

29

29

29

26

18

20

22

24

8.59 2.15 0.25

6.96 5.36 0.77

7.31 4.75 0.65

7.74 4.10 0.53

2782

2391

2489

2586

8.09 2.02 0.25

6.39 4.92 0.77

6.82 4.43 0.65

7.24 3.84 0.53

2904

2538

2611

2733

8.17 3.35 0.41

2684 7.67 3.14 0.41

2806

6.14 4.73 0.77

2586 5.89 4.54 0.77

2635

6.57 4.27 0.65

2684 6.32 4.11 0.65

2757

6.99 3.71 0.53

2782 6.75 3.57 0.53

2830

7.46 3.06 0.41

2867 7.24 2.97 0.41

2928

29

30

30

26

18

20

8.59 2.49 0.29

6.96 5.64 0.81

2782

2391

8.09 2.35 0.29

6.39 5.18 0.81

2904

2538

7.31 5.05 0.69

2489 6.82 4.70 0.69

2611

7.85 2.28 0.29

2965 7.60 2.20 0.29

3026

6.14 4.97 0.81

2586 5.89 4.77 0.81

2635

6.57 4.53 0.69

2684 6.32 4.36 0.69

2757

30 22 7.74 4.41 0.57

2586 7.24 4.13 0.57

2733 6.99 3.99 0.57

2782 6.75 3.84 0.57

2830

30 24 8.17 3.67 0.45

2684 7.67 3.45 0.45

2806 7.46 3.35 0.45

2867 7.24 3.26 0.45

2928

30 26 8.59 2.84 0.33

2782 8.09 2.67 0.33

2904 7.85 2.59 0.33

2965 7.60 2.51 0.33

3026

31

31

18

20

6.96 5.91 0.85

2391 6.39 5.43 0.85

2538

7.31 5.34 0.73

2489 6.82 4.98 0.73

2611

6.14 5.22 0.85

2586 5.89 5.01 0.85

2635

6.57 4.79 0.73

2684 6.32 4.61 0.73

2757

31 22 7.74 4.72 0.61

2586 7.24 4.42 0.61

2733 6.99 4.27 0.61

2782 6.75 4.11 0.61

2830

31 24 8.17 4.00 0.49

2684 7.67 3.76 0.49

2806 7.46 3.65 0.49

2867 7.24 3.55 0.49

2928

31 26 8.59 3.18 0.37

2782 8.09 2.99 0.37

2904 7.85 2.90 0.37

2965 7.60 2.81 0.37

3026

32 18 6.96 6.19 0.89

2391 6.39 5.69 0.89

2538 6.14 5.47 0.89

2586 5.89 5.24 0.89

2635

32 20 7.31 5.63 0.77

2489 6.82 5.25 0.77

2611 6.57 5.06 0.77

2684 6.32 4.87 0.77

2757

32 22 7.74 5.03 0.65

2586 7.24 4.71 0.65

2733 6.99 4.55 0.65

2782 6.75 4.38 0.65

2830

32 24 8.17 4.33 0.53

2684 7.67 4.06 0.53

2806 7.46 3.95 0.53

2867 7.24 3.84 0.53

2928

32 26 8.59 3.52 0.41

2782 8.09 3.32 0.41

2904 7.85 3.22 0.41

2965 7.60 3.11 0.41

3026

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


24

OB389F--1qxp 07.9.3 5:07 PM Page 25

PERFORMANCE DATA HEAT operation at Rated frequency


CAPACITY:5.9(kW) INPUT:1630(W)

INDOOR

DB( :

15

21

26

)

OUTDOOR WB( : )

-10 -5 0 5 10 15 20

Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT

3.72

1099 4.48

1318 5.25

1487 6.02

1606 6.79

1707 7.49

1758 8.26

1791

3.54

1183 4.25

1403 5.02

1555 5.72

1673 6.49

1758 7.20

1808 7.94

1876

3.19

1268 3.95

1487 4.66

1639 5.43

1758 6.20

1842 6.90

1893 7.67

1944



INDOOR

DB( : )

15

21

26

OUTDOOR WB( : )

-10 -5 0 5 10 15 20


4.28

1294 5.17

1552 6.05

1751 6.94

1891 7.82

2010 8.64

2070 9.52

2109

4.08

1393 4.90

1652 5.78

1831 6.60

1970 7.48

2070 8.30

2129 9.15

2209

3.67

1493 4.56

1751 5.37

1930 6.26

2070 7.14

2169 7.96

2229 8.84

2289



INDOOR

DB( : )

15

21

26

OUTDOOR WB( : )

-10 -5 0 5 10 15 20


5.10

1625 6.16

1950 7.21

2200 8.26

2375 9.32

2525 10.29 2600 11.34 2650

4.86

1750 5.83

2075 6.89

2300 7.86

2475 8.91

2600 9.88

2675 10.89 2775

4.37

1875 5.43

2200 6.40

2425 7.45

2600 8.51

2725 9.48

2800 10.53 2875

NOTE Q : Total capacity (kW) INPUT : Total power input (W) DB : Dry-bulb temperature WB : Wet-bulb temperature

25

OB389F--1qxp 07.9.3 5:07 PM Page 26

9 ACTUATOR CONTROL

MUZ-GA50VA

MUZ-GA60VA

MUZ-GA71VA

9-1. OUTDOOR FAN MOTOR CONTROL

The fan motor turns ON/OFF, interlocking with the compressor.

[ON] The fan motor turns ON 5 seconds before the compressor starts up.

[OFF] The fan motor turns OFF 15 seconds after the compressor has stopped running.

5 seconds 15 seconds

ON

Compressor

OFF

ON

Outdoor fan

OFF

9-2. R.V. COIL CONTROL

Heating . . . . . . . . . . . . . . . . ON

Cooling. . . . . . . . . . . . . . . . . OFF

Dry . . . . . . . . . . . . . . . . . . . . OFF

NOTE: The 4-way valve reverses for 5 seconds right before start-up of the compressor.

<COOL>

5 seconds

<HEAT>

5 seconds

Compressor

ON

OFF

R.V.coil

ON

OFF

Outdoor fan

ON motor

OFF

ON or OFF ON or OFF

9-3. RELATION BETWEEN MAIN SENSOR AND ACTUATOR

Relation between main sensor and actuator.

Sensor Purpose


Indoor coil temperature thermistor

Defrost thermistor

Fin temperature thermistor

Outdoor heat exchanger temperature


Protection

Defrosting Protection

Defrosting

Protection

Protection

Protection

Compressor LEV

Actuator

Outdoor fan motor

R.V. coil

26

OB389F--1qxp 07.9.3 5:07 PM Page 27

10 SERVICE FUNCTIONS

Contents of “SERVICE FUNCTIONS” have been removed.

11 TROUBLESHOOTING

MUZ-GA50VA

MUZ-GA60VA

MUZ-GA71VA

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 of the following during servicing

1) Before servicing the air conditioner, be sure to turn OFF the main unit first with the remote controller, 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 electrical parts, be careful to the residual voltage of smoothing capacitor.

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

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

Lead wiring Housing point

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) Before servicing check that the connector and terminal are connected properly.

3) 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.

4) When troubleshooting, refer to 11-2., 11-3. and 11-4.

27

OB389F--1qxp 07.9.3 5:07 PM Page 28

11-2. FAILURE MODE RECALL FUNCTION

Outline of the function

This air conditioner can memorize the abnormal condition which has occurred once.

Even though LED indication listed on the troubleshooting check table (11-4.) disappears, the memorized failure details can be recalled.

This mode is very useful when the unit needs to be repaired for the abnormality which doesn't recur.

1. Flow chart of the indoor/outdoor unit failure mode recall function

Operational procedure

The cause of abnormality cannot be found because the abnormality doesn't recur.

Setting up the failure mode recall function

Turn ON the power supply.

<Preparation of the remote controller>

1

While pressing both OPERATION SELECT

button and TOO COOL button on the remote controller at the same time, press

RESET button.

2

First, release RESET button.

And release the other two buttons after all LCD except the set temperature in

operation display section of the remote controller is displayed after 3 seconds.

Press OPERATE/STOP(ON/OFF) button of the remote controller (the set temperature

is displayed) with the remote controller headed towards the indoor unit. W 1

Does the left lamp of OPERATION INDICATOR lamp on the indoor unit blink at the interval of 0.5

seconds?

Blinks: Either indoor or outdoor unit is abnormal.

Beep is emitted at the same timing

as the blinking of the left lamp of

OPERATION INDICATOR lamp. W 2

Judgment of indoor/outdoor abnormality

Yes

(Blinks)

Before blinking, does the left lamp of

OPERATION INDICATOR lamp stay ON for 3 seconds?

Stays ON for 3 seconds (without beep):

The outdoor unit is abnormal.

No

No

(OFF)

Yes

W 1. Regardless of normal or abnormal condition, a short

beep is emitted once the signal is received.

Indoor unit is normal.

But the outdoor unit might be abnormal because there are some abnormalities that can't be recalled with this way.

Confirm if outdoor unit is abnormal according to the detailed outdoor unit failure mode recall function.(Refer to 11-2.2)

The indoor unit is abnormal.

Check the blinking pattern, and confirm the abnormal point with the indoor unit failure mode table (Refer to indoor unit service manual.)

Make sure to check at least two consecutive blinking cycles.

Releasing the failure mode recall function

W 2


Check the blinking pattern, and confirm the abnormal point with the outdoor unit failure mode table (Refer to 11-2.3).

Make sure to check at least two consecutive blinking cycles. W 3

Release the failure mode recall function by the following procedures.

Turn OFF the power supply and turn it ON again.

Press RESET button of the remote controller.

Repair the defective parts.

Deleting the memorized abnormal condition

1

After repairing the unit, recall the failure mode again according to

"Setting up the failure mode recall function" mentioned above.

2

Press OPERATE/STOP(ON/OFF) button of the remote controller (the set temperature is displayed)

with the remote controller headed towards the indoor unit.

3

Press EMERGENCY OPERATION switch so that the memorized abnormal condition is deleted.

4

Release the failure mode recall function according to "Releasing the failure mode recall function"

mentioned above.

NOTE1.Make sure to release the failure mode recall function once it's set up, otherwise the unit cannot operate properly.

2.If the abnormal condition is not deleted from the memory, the last abnormal condition is kept memorized.

W 2. Blinking pattern when the indoor unit is abnormal:

2.5-second OFF

Blinking at 0.5second interval 2.5-second OFF

Blinking at 0.5second interval

ON

OFF

Beeps

Repeated cycle

Beeps

Repeated cycle

Beeps

Repeated cycle

W 3.Blinking pattern when the outdoor unit is abnormal:

Blinking at 0.5-

2.5-second OFF 3-second ON second interval

ON

OFF

No beep

Repeated cycle

Beeps

2.5-second OFF 3-second ON

No beep

Repeated cycle


Beeps

28

Repeated cycle

OB389F--1qxp 07.9.3 5:07 PM Page 29

2. Flow chart of the detailed outdoor unit failure mode recall function

Operational procedure

The outdoor unit might be abnormal.

Confirm if outdoor unit is abnormal according to the following procedures.

Confirm that the remote controller is in the failure mode recall function.

With the remote controller headed towards the indoor unit, press TOO COOL or TOO

WARM button to adjust the set temperature to 25 : . W 1

W 1. Regardless of normal or abnormal condition, 2 short

beeps are emitted as the signal is received.

Does left lamp of OPERATION INDICATOR lamp on the indoor unit blink at the interval of 0.5 seconds?

Blinks: The outdoor unit is abnormal.

Beep is emitted at the same

timing as the blinking of the left lamp of

OPERATION INDICATOR lamp. W 2

Yes

(Blinks)


Check the blinking pattern, and confirm the abnormal point with the outdoor unit failure mode table (Refer to 11-2.3.).

Make sure to check at least two consecutive blinking cycles. W 2

No

(OFF)

Releasing the failure mode recall function

Release the failure mode recall function by the following procedures.

Turn OFF the power supply and turn it ON again.

Press RESET button of the remote controller.

The outdoor unit is normal.

Release the failure mode recall function according to the left mentioned procedure.

Repair the defective parts.

Deleting the memorized abnormal condition

1 After repairing the unit, recall the failure mode again according to

"Setting up the failure mode recall function" mentioned above.

2

Press OPERATE/STOP(ON/OFF) button of the remote controller (the set temperature is displayed)

with the remote controller headed towards the indoor unit.

3

Press EMERGENCY OPERATION switch so that the memorized abnormal condition is deleted.

4 Release the failure mode recall function according to "Releasing the failure mode recall function"

mentioned above.

NOTE1. Make sure to release the failure mode recall function once it's set up, otherwise the unit cannot operate properly.

2. If the abnormal condition is not deleted from the memory, the last abnormal condition is kept memorized.

W

2.Blinking pattern when outdoor unit is abnormal:

2.5-second OFF 3-second ON

Blinking at 0.5second interval 2.5-second OFF 3-second ON


ON

OFF

No beep

Repeated cycle

Beeps No beep

Repeated cycle

Beeps

Repeated cycle

29

OB389F--1qxp 07.9.3 5:07 PM Page 30

3. Outdoor failure mode table

The left lamp of

OPERATION INDICAOR lamp(Indoor unit)

OFF

2-time flash

Abnormal point

(Failure mode / protection)

None (Normal)

Outdoor power system

LED indication

(Outdoor P.C. board)

LED 1 LED 2

-

Lighting Lighting

Condition Correspondence

Overcurrent protection stop is continuously performed 3 times within

1 minute after the compressor gets started, or when converter protection stop or bus-bar voltage protection stop is continuously performed 3 times within 3 minutes after start-up.

• Check the connection of the compressor connecting wire.

• Refer to 11-4.

E

"How to check

inverter / compressor".

• Check the stop valve.

Indoor/outdoor unit failure mode recall function

3-time flash

4-time flash

5-time flash

6-time flash

7-time flash


Defrost thermistor



P.C. board temperature thermistor

Lighting Once

Lighting Once

Lighting Twice

Lighting 3 times

Lighting 4 times

Thermistor shorts or opens during compressor running.


Overcurrent

Discharge temperature

Lighting 9 times

• Refer to 11-6.

F "Check

of outdoor thermistors".

• Replace the outdoor

electronic control

P.C. board.

• Refer to 11-6.

F "Check

of outdoor thermistors".

Once Goes out

Lighting Lighting

28A current flows into intelligent power module.

• Reconnect compressor

connector.

• Refer to 11-6.

E "How to

check inverter/

compressor."


Discharge temperature exceeds 116

°

C during operation.

Compressor can restart if discharge temperature thermistor reads 100 : or less 3 minutes later.

•Check refrigerant circuit

and refrigerant amount.

• Refer to 11-6.

D "Check

of LEV".

High pressure

Fin temperature

P.C. board temperature

Lighting Lighting High-pressure is detected with the high-pressure switch (HPS) during operation.

The outdoor heat exchanger temperature exceeds 70 : during cooling or the indoor gas pipe temperature exceeds 70 : during heating.

3 times Goes out

The fin temperature exceeds 87 during operation.

:

4 times Goes out




The P.C. board temperature exceeds

70 : during operation.

• Check around outdoor

unit.

• Check outdoot unit air

passage.

• Refer to 11-6.

G "Check

of outdoor fan motor".

8-time flash

9-time flash

10-time flash

Outdoor fan motor

Nonvolatile memory data


Lighting Lighting Failure occurs continuously 3 times within 30 seconds after the fan gets started.

Lighting 5 times

Nonvolatile memory data cannot be read properly.

Lighting Lighting

The frequency of the compressor is kept 80Hz or more and the discharge temperature is kept under 39 : for more than 20 minutes.

• Refer to 11-6.

G "Check

of outdoor fan motor".

• Replace the outdoor

electronic control

P.C. board.



• Refer to 11-6.

D "Check

of LEV".

30

OB389F--2qxp 07.9.3 5:08 PM Page 31

The left lamp of

OPERATION INDICATOR lamp(Indoor unit)

11-time flash

Abnormal point

(Failure mode / protection)

Communication error between P.C. boards

Current sensor

Zero cross detecting circuit

Converter

LED indication

(Outdoor P.C. board)

LED 1 LED 2

Lighting 6 times

Condition

Communication error occurs between the electronic control P.C. board and power board for more than 10 seconds.

The communication between boards protection stop is continuously performed twice.

Correspondence

• Check the connecting

wire between outdoor

electronic control

P.C. board and power

board.

Lighting 7 times

5 times

5 times

Goes out

Goes out

A short or open circuit is detected in the current sensor during compressor operating.

Current sensor protection stop is continuously performed twice.

Zero cross signal cannot be detected while the compressor is operating.

The protection stop of the zero cross detecting circuit is continuously performed 10 times.

A failure is detected in the operation of the converter during operation.

• Replace the power

board.

• Check the connecting

wire among electronic

control P.C. board,

noise filter P.C. board

and power board.

• Replace the power

board.

Indoor/outdoor unit failure mode recall function

Bus-bar voltage

(1)

Bus-bar voltage

(2) w

Even if this protection stop is performed continuously 3 times, it does not mean the abnormality in outdoor power system.

5 times Goes out

6 times Goes out

The bus-bar voltage exceeds 400V or falls to 200V or below during compressor operating.


NOTE : Blinking patterns of this mode differ from the ones of Troubleshooting check table (11-4.).

31

OB389F--2qxp 07.9.3 5:08 PM Page 32

11-3. INSTRUCTION OF TROUBLESHOOTING

Start

Indoor unit operates.

Outdoor unit doesn't operate.

Indoor unit operates.

Outdoor unit doesn't operate normally.

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

If blinking of OPERATION

INDICATOR lamp cannot be checked, it can be checked with failure mode recall function.

OPERATION

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

Outdoor unit operates only in Test Run operation.

(Refer to 8-3.)

Outdoor unit doesn't operate even in

Test Run operation.

(Refer to 8-3.)

Unit doesn't operate normal operation in

COOL or

HEAT mode.

Indoor unit operates, when

EMERGENCY

OPERATION switch is pressed.

Indoor unit doesn't operate, when

EMERGENCY

OPERATION switch is pressed.

Check room temperature thermistor.

Refer to

"Test point diagram and voltage".

Refer to 11-6.

E

"How to check inverter/ compressor".

Refer to 11-6.

C

"Check of

R.V. coil".

Refer to

"Check of remote controller and receiver

P.C. board".

1. Check indoor / outdoor

connecting wire.

(Check if the power

is supplied to the

indoor unit.)

2. Refer to

"Check of indoor

electronic control

P.C. board and indoor

fan motor".

Refer to indoor unit service manual.

Left lamp

Flash on and off at

0.5-second intervals

Cause:

Indoor/

Outdoor unit

• Mis-wiring or

trouble of

serial signal.

Left lamp

2-time flash

Cause:

Indoor unit

• Trouble of

room temp-

erature/

indoor coil

thermistor

Left lamp

3-time flash

Cause:

Indoor unit

• Trouble of

indoor fan

motor

Left lamp

4-time flash

Cause:

Indoor unit

• Trouble of

indoor unit

control

system

Left lamp

5-time flash

Cause:

Outdoor unit

• Outdoor

power

system

abnormality

Left lamp

6-time flash

Cause:

Outdoor unit

• Trouble of

thermistor

in outdoor

unit

Left lamp

7-time flash

Cause:

Outdoor unit

• Trouble of

outdoor

control

system

Left lamp

14-time flash

Cause:

Outdoor unit

• Other

abnormality

Refer to 11-6.

B

"How to check

of mis-wiring and serial signal error".

Check room temperature thermistor and indoor coil thermistor.

Refer to "Test point diagram and voltage".

Refer to

"Check of indoor fan motor".

Replace the indoor electronic control

P.C. board.

Refer to 11-6.

E

"How to check inverter/ compressor".

Refer to 11-6.

F

"Check of outdoor thermistors".

Replace inverter P.C. board or outdoor electronic control P.C.

board.

Check 11-2.2.

"Flow chart of the detailed outdoor unit failure mode recall function."

32

OB389F--2qxp 07.9.3 5:08 PM Page 33

11-4. TROUBLESHOOTING CHECK TABLE

No.

1

Symptom

Outdoor unit does not operate.

Indication

LED1(Red) LED2(Yellow)

Lightning Twice

Abnormal point / Condition

Outdoor power system

Condition

Overcurrent protection stop is continuously performed 3 times within 1 minute after the compressor gets started, or when converter protection stop or bus-bar voltage protection stop is continuously performed 3 times within 3 minutes after start-up.

Correspondence

• Check the connection of the compressor connecting wire.

• Refer to 11-6.

E "How to check inverter/compressor".


2

3

4

Lightning 3 times

Lightning 4 times

Lightning 5 times


A short circuit is detected in the thermistor during operation, or an open circuit is detected in the thermistor after 10 minutes of compressor start-up.


P.C board temperature thermistor


A short or open circuit is detected in the thermistor during operation.

A short or open circuit is detected in the thermistor during operation.

• Refer to 11-6.

F "Check of outdoor thirmistor".

• Refer to 11-6.


• Replace the outdoor electronic control P.C. board.


A short circuit is detected in the thermistor during operation, or an open circuit is detected in the thermistor after 5 minutes (in cooling) and

10 minutes (in heating) of compressor start-up.

• Refer to 11-6.


Defrost thermistor

A short circuit is detected in the thermistor during operation, or an open circuit is detected in the thermistor after 5 minutes of compressor start-up.

16

17

18

5

11

12

13

Lightning

6

7

Lightning

Lightning

Lightning

7 times

8 times

11 times 8

9 Lightning 12 times

10

'Outdoor unit stops and restarts 3 minutes later' is repeated.

Twice Goes out

3 times

4 times

5 times

6 times

Goes out

Goes out

Goes out

Serial signal

Nonvolatile memory data

The communication fails between the indoor and outdoor unit for 3 minutes.

• Refer to 11-6.

B "How to check mis-wiring and serial signal error".

The nonvolatile memory data cannot be read properly.

• Replace the outdoor electronic control P.C. board.

Current sensor

Communication error between

P.C. boards

Zero cross detecting circuit

Current sensor protection stop is continuously performed twice.

The communication protection stop between boards is continuously performed twice.

The protection stop of the zero cross detecting circuit is continuously performed 10 times.

• Replace the power board.

• Check the connecting wire between outdoor electronic control

P.C. board and power board.

• Check the connecting wire among outdoor electronic control

P.C. board, noise filter P.C. board and power board.

IPM protection

Lock protection

Discharge temperature protection

Fin temperature protection

P.C. board temperature protection

High-pressure protection

Overcurrent is detected after 30 minutes of compressor start-up.

• Reconnect compressor connector.

• Refer to 11-6.

E "How to check inverter/compressor".


• Check the power module (PAM module).

Overcurrent is detected within 30 minutes of compressor start-up

Discharge temperature exceeds 116 : during operation and compressor stops. Compressor can restart if discharge temperature thermistor reads

100 : or less 3 minutes later.

The fin temperature exceeds 87 : during operation.

• Check the amount of gas and refrigerant circuit.

• Refer to 11-6.

D "Check of LEV".

•Check refrigerant circuit and refrigerant amount.

•Refer to 11-6.

G "Check of outdoor fan motor".

The P.C. board temperature exceeds 70 : during operation.

High-pressure is detected with the high-pressure switch (HPS) during operation.

The outdoor heat exchanger temperature exceeds 70 : during cooling or indoor gas pipe temperature exceeds 70 : during heating.

• Check the amount of gas and the refrigerant circuit.

• Check stop valve.

14

15

19

8 times

9 times

13 times

Lighting

Lighting

Lighting

Goes out

Goes out

Goes out

8 times

11 times

12 times

Converter protection

Bus-bar voltage protection (1)

Bus-bar voltage protection (2)

Outdoor fan motor

Current sensor protection

Communication between P.C.

boards protection

Zero cross detecting circuit protection

A failure is detected in the operation of the converter during operation.




Failure occurs continuously 3 times within 30 seconds after the fan gets started.

A short or open circuit is detected in the current sensor during compressor operating.

Communication error occurs between the outdoor electronic control P.C. board and power board for more than 10 seconds.

Zero cross signal cannot be detected while the compressor is operating.


• Refer to 11-6.

G "Check of outdoor fan motor".


• Check the connecting wire between outdoor electronic control

P.C. board and power board.

• Check the connecting wire among outdoor electronic control

P.C. board, noise filter P.C. board and power board.

NOTE 1. The location of LED is illustrated at the right figure. Refer to 11-7.1.

2. LED is lighted during normal operation.

The flashing frequency shows the number of times the LED blinks after every 2.5-second OFF.

(Example) When the flashing frequency is “2”.

0.5-second ON

Outdoor electronic control P.C. board(Parts side)

LED2 LED1

Lighting

0.5-second ON

ON

OFF

2.5-second OFF 2.5-second OFF

33

OB389F--2qxp 07.9.3 5:08 PM Page 34

No. Symptom

20

Indication

LED1(Red) LED2(Yellow)

Outdoor unit operates.

Once Lighting

Abnormal point / Condition

Primary current protection

Secondary current protection

21

Twice Lighting

High-pressure protection

Defrosting in cooling

Condition

The input current exceeds 15A.

The current of the compressor exceeds 15A.

The indoor gas pipe temperature exceeds 45 : during heating.

The indoor gas pipe temperature falls 3 : or below during cooling.

22

23

3 times

4 times

Lighting

Discharge temperature protection

Lighting

Low discharge temperature protection

Correspondence

These symptoms do not mean any abnormality of the product, but check the following points.

• Check if indoor filters are clogged.

• Check if refrigerant is short.

• Check if indoor/outdoor unit air circulation is short cycled.

The discharge temperature exceeds 100 : during operation.

• Check refrigerant circuit and refrigerant amount.

• Refer to 11-6.

D "Check of LEV".

• Refer to 11-6.

F "Check of outdoor thermistors".

The frequency of the compressor is kept 80Hz or more and the discharge temperature is kept under 39 : for more than 20 minutes.

• Refer to 11-6.

D "Check of LEV".

• Check refrigerant circuit and refrigerant amount.

24 5 times

25

Outdoor unit operates

9 times

Lighting Cooling high-pressure protection The outdoor heat exchanger temperature exceeds 58 : during operation.

This symptom does not mean any abnormality of the product, but check the following points.

• Check if indoor filters are clogged.

• Check if refrigerant is short.

• Check if indoor/outdoor unit air circulation is short cycled.

Lighting Inverter check mode The unit is operated with emergency operation switch.

-

26 Lighting

Lighting Normal -

34

OB389F--2qxp 07.9.3 5:08 PM Page 35

11-5. TROUBLE CRITERION OF MAIN PARTS

MUZ-GA50VA

MUZ-GA60VA

MUZ-GA71VA

Part name Check method and criterion

Defrost thermistor

(RT61)

Ambient temperature thermistor (RT65)


(RT68)

Measure the resistance with a tester.

Refer to 11-7. “Test point diagram and voltage”,1. “Outdoor electronic control P.C. board”, the chart of thermistor.

Figure

Discharge temperature thermistor (RT62)

Fin temperature thermistor (RT64)

Measure the resistance with a tester.

Before measurement, hold the thermistor with your hands to warm it up.

Refer to 11-7. “Test point diagram and voltage”,1. “Outdoor electronic control P.C. board”, the chart of thermistor.

Compressor

Measure the resistance between terminals using a tester.

(Winding temperature : -10 °C ~ 40 °C)

GA50/60VA

0.40

Ω

~ 0.49

Ω

Normal

GA60VA

-

E3

0.86

Ω

~ 1.06

Ω

GA71VA

1.29

Ω

~ 1.49

Ω

Outdoor fan motor

R. V. coil

Measure the resistance between lead wires using a tester.

(Part temperature : -10 °C ~ 40 °C)

Normal Color of lead wire

RED - BLK

BLK - WHT

WHT - RED

13.4

Ω

~ 16.4

Ω

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

Normal

MUZ-GA60VA

-

E3

1.32 k

Ω

~ 1.62 k

Ω

Other models

2.6 k

Ω

~ 3.3 k

Ω

Linear expansion valve

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

Color of lead wire

WHT - RED

RED - ORN

YLW - BRN

BRN - BLU

37.4

Normal

Ω

~ 53.9

Ω

V

WHT

WHT

RED

ORN

W

RED

U

BLK

RED

U (W)

WHT

V (V)

BLK

W (U)

LEV

YLW BRN BLU

High pressure switch

(HPS)

MUZ-GA60VA

-

MUZ-GA71VA

E3

Pressure

3.7 ± 0.15 MPa Close

Open

35

OB389F--2qxp 07.9.3 5:08 PM Page 36

11-6. TROUBLESHOOTING FLOW

Outdoor unit does not operate.

A Check of power supply

Check the connecting of parts of main power supply circuit.

Turn ON power supply.

Is there voltage of 230V AC in the power supply terminal block?

Yes

Is the output voltage from the noise filter P.C. board 230V AC?

No

No

Yes

Is the input voltage to the power board

230V AC?

No

Yes

Is the input voltage to the outdoor electronic control P.C. board 325V DC?

No

Yes

Replace the outdoor electronic control

P.C. board.

Check the power supply cable.

Is fuse (F64) blown?

Yes

Replace the fuse.

Replace the reactor.

No

Replace the power board.

Replace the noise filter P.C. board.

36

OB389F--2qxp 07.9.3 5:08 PM Page 37

• When unit cannot operate neither by the remote controller nor by EMERGENCY OPERATION switch.

Indoor unit does not operate.

• When OPERATION INDICATOR lamp flashes ON and OFF every 0.5-second.

Outdoor unit doesn’t operate.

B How to check mis-wiring and serial signal error (when outdoor unit does not work)

Turn OFF the power supply.

Is there rated voltage in the power supply?

Yes


No

Is there rated voltage between outdoor terminal block S1 and

S2?

No

Yes

Press EMERGENCY OPERATION switch once.

Check the power supply.

Check the wiring.

Does the left lamp of OPERATION

INDICATOR lamp light up?

<Confirmation of the power to the indoor unit>

Yes

No

No

Is serial signal error indicated 6 minutes later?

Yes

Is there any mis-wiring, poor contact, or wire disconnection of the indoor/outdoor connecting wire?

Yes

Correct them.

No

A

B


Check once more if the indoor/outdoor connecting wire is not mis-wiring.

Short-circuit outdoor terminal block S2 and

S3.

W 1


W 1. Mis-wiring may damage indoor electronic control

P.C. board during the operation.

Be sure to confirm the wiring is correct before the

operation starts.

W 3.Be sure to check this within 3 minutes after turning

ON. After 3 minutes, LED blinks 6 times. Even when

the inverter P.C.board or the outdoor electronic control

P.C.board is normal, LED blinks 6 times after 3 minutes.

Outdoor electronic control P.C. board

(Parts side)

LED2 LED1

Lighted Blinking

A

· Turn OFF inverter-controlled lighting equipment.

· Turn OFF the power supply and then turn ON again.

· Press EMERGENCY OPERATION switch.

Is serial signal error indicated

6 minutes later?

B

Yes

No

· Reinstall either the unit or the light each other away.

· Attach a filter on remote control receiving section of the indoor unit.

Does the LED on the inverter P.C. board or the outdoor electronic control P.C.board

repeat "3.6-second-OFF and 0.8-second-ON quick blinking"? W 3

Yes

No

(Lighted

or not

lighted)

Replace the inverter P.C. board or the outdoor electronic control

P.C.board. W 2

W

2 Be careful to the residual

voltage of smoothing capacitor.


Remove the short-circuit between outdoor terminal block S2 and S3.


Is there amplitude of 10 to 20V DC between outdoor terminal block S2 and S3? <Confirmation of serial signal>

Yes

No

Is there any error of the indoor/outdoor connecting wire, such as the damage of the wire, intermediate connection, poor contact to the terminal block?

No

Yes

Replace the indoor/outdoor connecting wire.

Is there rated voltage between indoor terminal block S1 and S2?

<Confirmation of power voltage>

Yes

Replace the indoor electronic control P.C. board.

Be sure to release the failure-mode recall function after checking.

Refer to indoor unit service manual.

37

No

Is there any error of the indoor/outdoor connecting wire, such as the damage of the wire, intermediate connection, poor contact to the terminal block?

No

Yes Replace the indoor/outdoor connecting wire.

OB389F--2qxp 07.9.3 5:08 PM Page 38

The cooling operation or heating operation does not operate.

C Check of R.V. coil

• When heating operation does not work.

1. Disconnect the lead wire leading to the compressor.

2. 3 minutes after turning ON the power supply, start EMERGENCY

OPERATION in HEAT mode.

Is there voltage of 230V AC between pin1 and pin 2 at connector CN912? W

Yes

Turn OFF power supply of indoor and outdoor unit.

No 1. Turn OFF power supply of indoor and outdoor unit, and disconnect the connector CN781 in the outdoor electronic control P.C. board.

2. 3 minutes after turning ON the power supply, start

EMERGENCY OPERATION in HEAT mode.

Disconnect the connector

CN912 in noise filter P. C. board. Is there normal resistance to R.V. coil?

No

Yes

Replace the 4-way valve.

Replace the R.V. coil.

Is there voltage 12V DC between the connector CN781 pin 5 (+) and pin 3 (-)?

Yes


No Replace the electronic control P.C. board.

• When cooling operation does not work.

1. Disconnect the lead wire leading to the compressor.

2. 3 minutes after turning ON the power supply, start EMERGENCY

OPERATION in COOL mode.

Is there voltage of 230V AC between pin1 and pin 2 at connector CN912? W

Yes

No

Replace the 4-way valve.

1. Turn OFF power supply of indoor and outdoor unit, and disconnect the connector CN781 in the outdoor electronic control P.C. board.

2. 3 minutes after turning ON the power supply, start

EMERGENCY OPERATION in COOL mode.

W If the connector CN912 is not connected or R.V. coil is open, voltage occurs between terminals even when the control is OFF.

Is there voltage 12V DC between the connector CN781 pin 5 (+) and pin 3 (-)?

No


Yes

Replace the outdoor electronic control P.C. board.

38

OB389F--2qxp 07.9.3 5:08 PM Page 39

• When cooling, heat exchanger of non-operating indoor unit frosts.

• When heating, non-operating indoor unit gets warm.

D Check of LEV

Turn ON power supply to the outdoor unit after checking LEV coil is mounted to the

LEV body securely.

Is "click - click" sound heard?

Or, do you feel vibration of the LEV coil with hands?

No

Disconnect the connector CN795.

Is there normal resistance to LEV coil?

No

Replace the LEV coil.

Yes

Yes

Normal


When OPERATION INDICATOR lamp flashes 5-time.

• When heating, room does not get warm.

• When cooling, room does not get cool.

E How to check inverter/ compressor

Disconnect the terminal of the compressor. 3 minutes after turning ON the power supply, start

EMERGENCY OPERATION.

Measure the voltage between each lead wire leading to the compressor.

U (BLK) - V (WHT)

V (WHT) - W (RED)

W (RED) - U (BLK)

Is there output voltage?

Yes

Is output balanced?

Yes

No

W

• After the outdoor fan starts running, wait for 1 minute or more before measuring the voltage.

• The output voltage values have the tolerance of i

20%.

No

Is the input voltage to the outdoor electronic control P.C. board 370V or more?

Yes

No

Replace the power board.

Turn OFF power supply of indoor and outdoor unit, and measure the compressor winding resistance between the compressor terminals.

Is the resistance between each terminal normal?

Yes

No

Reconnect the lead wire of compressor, and turn ON power supply to indoor and outdoor unit.

3 minutes later, start EMERGENCY OPERATION.

Replace the compressor.

Clarify the causes by counting time until the inverter stops.

0 to 10 seconds: compressor rare short

10 to 60 seconds: compressor lock

60 seconds to 5minutes: refrigerant circuit defective

5 minutes or more: normal

39

OB389F--2qxp 07.9.3 5:08 PM Page 40

• When OPERATION INDICATOR lamp flashes 6-time.

• When thermistor is abnormal.

F Check of outdoor thermistors

Disconnect the connector in the outdoor electronic control P.C. board or the outdoor power board

(see below table), and measure the resistance of thermistor. Is the thermistor normal?

(Refer to 11-7.1.)

Yes

No

Reconnect the connector CN661, CN663 and CN3.

3 minutes after turning ON the power supply, start EMERGENCY OPERATION.

Replace the thermistor.

W

W

When RT64 is abnormal,

replace the outdoor power

board.

Does the unit operate for 10 minutes or more without showing thermistor abnormality?

Yes

Normal

No

Thermistor

Defrost


Outdoor heat exchanger temperature

Ambient temperature

Fin temperature

Symbol

RT61

RT62

RT68

RT65

RT64


Connector, Pin No.

Between CN661 pin1 and pin2





Board

Outdoor electronic control P.C. board

Outdoor power board

• Fan motor does not operate or stops operating shortly after starting the operation.

G Check of outdoor fan motor

Check the connection between the connector CN931 and CN932.

Is the resistance between each terminal of outdoor fan motor normal?

No

Yes

Disconnect CN932 from outdoor electronic control P.C. board, and turn ON the power supply.

Rotate the outdoor fan motor manually and measure the voltage of

CN931.

Between 1 (+) and 5 (-)



(Fixed to either 5V or 0V DC)

Replace the outdoor DC fan motor.

No

No

Does the voltage between each terminal become 5V DC and 0V DC repeatedly?

Yes

Does the outdoor fan motor rotate smoothly?

Yes


40

OB389F--2qxp 07.9.3 5:08 PM Page 41

• When the operation frequency does not go up from lowest frequency.

H Check of HPS

MUZ-GA60VA

-

MUZ-GA71VA

E3

1. Disconnect the connector CN681 in the electronic control P.C. board.

2. Check the resistance of HPS 1 minute after the outdoor unit power supply was turned OFF.

Check the resistance between each terminal.

0 "

Infinity

Replace HPS.

Reconnect CN681.

Turn ON power supply to the indoor and outdoor unit.

3 minutes later, start EMERGENCY OPERATION.

Is HPS protection displayed immediately after compressor starts?

No

Normal

Yes

Replace the electronic control P.C. board.

41

OB389F--2qxp 07.9.3 5:08 PM Page 42

I Electromagnetic noise enters into TV sets or radios

No

Is the unit earthed?

Yes

Is the distance between the antennas and the indoor unit within 3m, or is the distance between the antennas and the outdoor unit within 3m?

No

Is the distance between the

TV sets or radios and the indoor unit within 1m, or is the distance between the TV sets or radios and the outdoor unit within 3m?

No

Yes

Yes

Earth the unit.

Extend the distance between the antennas and the indoor unit, and/or the antennas and the outdoor unit.

Extend the distance between the TV sets and/or radios and the indoor unit, or the TV sets or radios and the outdoor unit.

Are the antennas damaged?

Is the coaxial cable damaged?

Is there any poor contact in the antenna wiring?

Yes

Replace or repair the antenna.

Replace or repair the coaxial cable.

No

Is the indoor/outdoor connecting wire of the air conditioner and the wiring of the antennas close?

Yes

Extend the distance between the indoor/outdoor connecting wire of the air conditioner and the wiring of the antennas.

No

Even if all of the above conditions are fulfilled, the electromagnetic noise may enter, depending on the electric field strength or the installation condition (combination of specific conditions such as antennas or wiring).

Check the followings before asking for service.

1.Devices affected by the electromagnetic noise

TV sets, radios (FM/AM broadcast, shortwave)

2.Channel, frequency, broadcast station affected by the electromagnetic noise

3.Channel, frequency, broadcast station unaffected by the electromagnetic noise

4.Layout of ;

indoor/outdoor unit of the air conditioner, indoor/outdoor wiring, earth wire, antennas, wiring

from antennas, receiver

5.Electric field intensity of the broadcast station affected by the electromagnetic noise

6.Presence or absence of amplifier such as booster

7.Operation condition of air conditioner when the electromagnetic noise enters in

1)Turn OFF the power supply once, and then turn ON the power supply. In this situation, check for

the electromagnetic noise.

2)Within 3 minutes after turning ON the power supply, press OPERATE/STOP (ON/OFF) button

on the remote controller for power ON, and check for the electromagnetic noise.

3)After a short time (3 minutes later after turning ON), the outdoor unit starts running. During

operation, check for the electromagnetic noise.

4)Press OPERATE/STOP (ON/OFF) button on the remote controller for power OFF, when the

outdoor unit stops but the indoor/outdoor communication still runs on. In this situation, check for

the electromagnetic noise.

42

OB389F--2qxp 07.9.3 5:08 PM Page 43

11-7. TEST POINT DIAGRAM AND VOLTAGE

1. Outdoor electronic control P.C. board

MUZ-GA50VA MUZ-GA60VA MUZ-GA71VA

Fin temperature thermistor (RT64)

Discharge temperature thermistor (RT62)

200

700

180

Defrost thermistor (RT61)

Ambient temperature thermistor (RT65)

Outdoor heat exchanger temperature thermistor (RT68)

100

90

160 600

80

140

500

120

70

400

100 60

300

80

60

50

200 40

40

30 100

0

0 10 20 30 40 50 60 70 80 90 100 110 120

Temperature ( ; )

20

0

0 10 20 30 40 50 60 70 80

Temperature ( ; )

20

10

0

-20 -10 0 10 20 30

Temperature ( ; )

40

LED 1

LED 2

CN801

325V DC

~

370V DC

Input

F801

FUSE

250V 3.15A

(

CN601

230V AC

Input

(

Serial signal

Room A

5~10V DC

CN681

High pressure switch

MUZ-GA60VA-

E3

MUZ-GA71VA

43

OB389F--2qxp 07.9.3 5:08 PM Page 44

2. Noise filter P.C. board

MUZ-GA50VA

MUZ-GA60VA

MUZ-GA71VA

CN901

To electronic control

P.C. board

CN902

To power board

CN903

To power board

CN912

R.V. coil

230V AC

{

230V AC

Output

NR64 VARISTOR F64 FUSE

250V 2A

F911 FUSE

250V 1A

230V AC

Input

{

230V AC

Output

44

OB389F--2qxp 07.9.3 5:08 PM Page 45

3. Outdoor power board


325-370V DC

Output

(Red)

(+) 1

(–) 3

(White)

325-370V DC

Output

(Red)

(+) 1

(–) 3

(White)

Connect to the compressor

Voltage among phases: 5V to

180V

Connect to the earth

CN2

Connect to the controller board

(+)1-5(–): Signal transmission

(To electronic control P.C. board)

5V DC pulse wave

(+)2-5(–): Zero cross signal

3-4 : Not used

(+)6-5(–): 15V

(+)7-5(–): 15V

CN3

Fin temperature thermistor RT64

) Signal reception (From electronic control P.C. board)

5V DC pulse wave

CN5

Primary current detection

(Connect to the noise filter)

Connect to the compressor

Voltage among phases: 5V to 180V

Connect to the earth

CN2

Connect to the controller board

(+)1-5(–): Signal transmission

(To electronic control P.C. board)

5V DC pulse wave

(+)2-5(–): Zero cross signal

3-4 : Not used

(+)6-5(–): 15V

(+)7-5(–): 15V

CN3

Fin temperature thermistor RT64

) Signal reception (From electronic control P.C. board)

5V DC pulse wave

CN5

Primary current detection

(Connect to the noise filter)

45

OB389F--2qxp 07.9.3 5:09 PM Page 46

12 DISASSEMBLY INSTRUCTIONS

<"Terminal with locking mechanism" Detaching points>

The terminal which has the locking mechanism can be detached as shown below.

There are two types ( Refer to (1) and (2)) of the terminal with locking mechanism.

The terminal without locking mechanism can be detached by pulling it out.

Check the shape of the terminal before detaching.

(1) Slide the sleeve and check if there is a locking lever or not.

(2) The terminal with this connector has the

locking mechanism.

Sleeve

Locking lever

1 Slide the sleeve.

2 Pull the terminal while

pushing the locking

lever.

1 Hold the sleeve, and

pull out the terminal

slowly.

Connector


OPERATING PROCEDURE

1. Removing the cabinet

(1) Remove the screws of the service panel.

(2) Remove the screws of the top panel.

(3) Remove the screw of the valve cover.

(4) Remove the service panel.

(5) Remove the top panel.

(6) Remove the valve cover.

(7) Disconnect the power supply and indoor/ outdoor connecting wire.

(8) Remove the screws of the cabinet.

(9) Remove the cabinet.

(10) Remove the screws of the back panel.

(11) Remove the back panel.

Photo 1

Screws of the cabinet

NOTE :

These photos are MUZ-GA71VA.

Other models are almost the same as

MUZ-GA71VA.

PHOTOS

Screw of the top panel

Photo 3

Screws of the back panel

Screw of the motor support

Photo 2


Screw of the service panel

Screws of the top panel


Screw of the valve cover

Set screws of the back panel

46

OB389F--2qxp 07.9.3 5:09 PM Page 47


2. Removing the inverter assembly, inverter P.C. board and power board

(1) Remove the top panel, cabinet and service panel.

(Refer to 1.)

(2) Remove the back panel.(Refer to 1.)

(3) Disconnect the following connectors;

<Electronic control P.C. board>

CN931 and CN932 (Fan motor)

CN795 (LEV)

CN661 (Discharge temperature thermistor, defrost thermistor and outdoor heat exchanger temperature thermistor)

CN663 (Ambient temperature thermistor)

CN681 (High pressure switch) (GA60VA-

E3

, GA71VA)

<Noise filter P.C. board>

CN912 (R.V coil)

(4) Remove the compressor connector.

(5) Remove the screws fixing the relay panel.

(6) Remove the inverter assembly.

(7) Disconnect all connectors and lead wires on the electronic control P.C. board.

(8) Remove the electronic control P.C. board from the inverter assembly.

(9) Remove the screws fixing the power board assembly.

(10) Disconnect all connectors and lead wires on the power board.

(11) Remove the power board from the inverter assembly.

(12) Disconnect all connectors and lead wires on the noise filter

P.C. board.

(13) Remove the noise filter P.C. board from the inverter assembly.

PHOTOS

Photo 4

Screws of the power board assembly

Screws of the relay panel

3. Removing R.V. coil


(Refer to 1.)

(2) Remove the back panel. (Refer to 1.)


<Noise filter P.C. board>

CN912 (R.V coil)

(4) Remove the R.V. coil. (Photo 9)

47

OB389F--2qxp 07.9.3 5:09 PM Page 48


4. Removing the defrost thermistor, discharge temperature thermistor, outdoor heat exchanger temperature thermistor and ambient temperature thermistor


(Refer to 1.)




CN661 (Discharge temperature thermistor, defrost thermistor and outdoor heat exchanger temperature thermistor)

CN663 (Ambient temperature thermistor)

(4) Pull out the defrost thermistor from its holder. (Photo 6)

(5) Pull out the discharge temperature thermistor from its holder. (Photo 5)

(6) Pull out the outdoor heat exchanger temperature thermistor from its holder. (Photo 6)

(7) Pull out the ambient temperature thermistor from its holder.

(Photo 6)

Photo 6


PHOTOS

Photo 5



5. Removing outdoor fan motor


(Refer to 1.)




CN931 and CN932 (Fan motor)

(4) Remove the propeller.

(5) Remove the screws fixing the fan motor.

(6) Remove the fan motor.

Defrost thermistor

Photo 7

Propeller

Screws of the outdoor fan motor

48

OB389F--2qxp 07.9.3 5:09 PM Page 49


6. Removing the compressor and 4-way valve


(Refer to 1.)


(3) Remove the inverter assembly. (Refer to 2.)

(4) Recover gas from the refrigerant circuit.

NOTE: Recover gas from the pipes until the pressure gauge shows 0 kg/cm 2 (0 MPa).

(5) Detach the welded part of the suction and the discharge pipe connected with compressor. (Photo 9)

(6) Remove the compressor nuts.

(7) Remove the compressor.

(8) Detach the welded part of 4-way valve and pipe. (Photo 8)

Photo 8

PHOTOS

Photo 9

Welded parts of 4-way valve

R.V. coil

Welded part of the discharge pipe

Welded part of the suction pipe

7. Removing the reactor

(1) Remove the top panel. (Refer to 1.)

(2) Disconnect the reactor lead wire.

(3) Remove the screws of the reactor, and remove the reactor.

Photo 10

49

Screws of the reactor

1

2

3

4

5

6

7

8

OB389F--2qxp 07.9.3 5:09 PM Page 50

13 PARTS LIST (non-RoHS compliant)


13-1. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND

FUNCTIONAL PARTS

31 30 29 28

18

17

16

14

15

19

20

27

26

25

24

23

22

21

9 10 11 12 13

50

OB389F--2qxp 07.9.3 5:09 PM Page 51

PARTS LIST (non-RoHS compliant)




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

8

9

6

7

15

16

17

18

19

20

26

27

28

29

22

23

24

25

30

31

32

33

34

No.

1

2

3

4

5

10

11

12

13

14

21

35

Part No.

Part Name

E02 819 297

E02 851 630

E02 853 630

E02 938 301

E02 851 501

E02 851 290

E02 853 290

E02 819 232

TOP PANEL

OUTDOOR HEAT EXCHANGER


OUTDOOR FAN MOTOR

PROPELLER

BASE

BASE

CABINET

E02 819 009

E02 819 521

E02 853 646

E12 C34 506

E02 853 506

E02 939 900

E02 853 900

E02 851 661

HANDLE

FAN GUARD

HIGH PRESSURE SWITCH

COMPRESSOR RUBBER SET


COMPRESSOR

COMPRESSOR

STOP VALVE(GAS)

E02 819 661

E02 821 662

E02 822 662

E02 851 640

E02 853 640

E02 851 493

E02 853 299

E02 935 490

STOP VALVE(GAS)

STOP VALVE(LIQUID)


EXPANSION VALVE

EXPANSION VALVE

EXPANSION VALVE COIL

OIL SEPARATOR

E02 891 961

E02 819 650

E02 819 245

E12 D01 450

E12 C96 450

E12 C97 450

E02 935 374

E02 823 375

E02 851 337

E02 935 444

R.V. COIL

4-WAY VALVE

VALVE COVER

SERVICE PANEL

OUTDOOR ELECTRONIC CONTROL P.C. BOARD



TERMINAL BLOCK

TERMINAL BLOCK

REACTOR

E02 935 309

E02 851 308

E02 935 440

E02 819 233

NOISE FILTER P.C. BOARD

AMBIENT TEMPERATURE THERMISTOR

THERMISTOR SET

POWER BOARD

BACK PANEL(OUT)

E02 817 009

E02 851 515

E02 737 382

E02 935 385

E02 851 936

E02 853 936

E02 861 936

HANDLE

MOTOR SUPPORT

E02 127 382 FUSE

FUSE

FUSE & VARISTOR

CAPILLARY TUBE(TAPER PIPE)


CAPILLARY TUBE

Symbol in Wiring

Diagram

Q'ty/unit

MUZ-GA50

VA -

E1

MUZ-GA60

VA -

E1

MUZ-GA71

VA -

E1

1

1

1

1

1

MF

HPS

MC

MC

LEV

21S4

TB1

TB2

L

RT65

RT61,RT62,RT68

F801

F911

F64,NR64

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Remarks

RC0J60-

3RUBBERS/SET

3RUBBERS/SET

SNB130FLDH1

TNB220FMCH

{ 12.7

{ 15.88

{ 6.35

{ 9.52

3P

3P

DEFROST, DISCHARGE


Including heat sink and RT64

T3.15AL250V

T1AL250V

T2AL250V

{ 3.6x

{ 2.4x50

{ 3.6x

{ 2.4x50

{ 1.8x

{ 0.6x1000

51

OB389F--2qxp 07.9.3 5:09 PM Page 52

PARTS LIST (non-RoHS compliant)

MUZ-GA50VA

MUZ-GA60VA

MUZ-GA71VA

13-2. ACCESSORY

1 2

No.

Part No.

Part Name

1

2

E02 817 704

E02 444 705

DRAIN SOCKET

DRAIN CAP

Symbol Q'ty/unit in Wiring

Diagram

MUZ-GA50

VA -

E1

MUZ-GA60

VA -

E1

MUZ-GA71

VA -

E1

1

2

1

2

1

2 [ 33

Remarks

52

OB389F--2qxp 07.9.3 5:09 PM Page 53

53

1

2

3

4

5

6

7

8

OB389F--2qxp 07.9.3 5:09 PM Page 54

14 RoHS PARTS LIST (RoHS compliant)




31 30 29 28

18

17

16

14

15

19

20

27

26

25

24

23

22

21

9 10 11 12 13

54

OB389F--2qxp 07.9.3 5:09 PM Page 55

RoHS PARTS LIST (RoHS compliant)

8

9

6

7

1

2

3

4

5

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G




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

No.

Part No.

Part Name

Q'ty/unit


Diagram

MUZ-GA50

VA -

E1

MUZ-GA60

VA -

MUZ-GA71

VA -

E1 E2 E3 E1 E2

1

1

1

1

1 1

1

1 1 E12 819 297

E12 851 630

E12 853 630

E12 938 301

E12 851 501

E12 851 290

E12 853 290

E12 819 232

E12 819 009

E12 819 521

E12 853 646

E12 C34 506

E12 853 506

E12 939 900

E12 C06 900

E12 C37 900

E12 853 900

E12 851 661

E12 819 661

E12 821 662

E12 822 662

E12 851 640

E12 853 640

E12 851 493

E12 853 299

E12 935 490

E12 D02 490

E12 891 961

E12 C18 961

E12 819 650

E12 819 245

E12 D01 450

E12 C96 450

E12 C97 450

E12 D02 450

E12 935 374

E12 823 375

E12 851 337

E12 935 444

E12 935 309

E12 851 308

E12 935 440

E12 B79 440

E12 819 233

E12 817 009

TOP PANEL



OUTDOOR FAN MOTOR

PROPELLER

BASE

BASE

CABINET

HANDLE

FAN GUARD

HIGH PRESSURE SWITCH



COMPRESSOR

COMPRESSOR

COMPRESSOR

COMPRESSOR

STOP VALVE(GAS)

STOP VALVE(GAS)



EXPANSION VALVE

EXPANSION VALVE

EXPANSION VALVE COIL

OIL SEPARATOR

R.V. COIL

R.V. COIL

4-WAY VALVE

4-WAY VALVE

VALVE COVER

SERVICE PANEL





TERMINAL BLOCK

TERMINAL BLOCK

REACTOR

NOISE FILTER P.C. BOARD

AMBIENT TEMPERATURE THERMISTOR

THERMISTOR SET

POWER BOARD

POWER BOARD

BACK PANEL(OUT)

HANDLE

E12 851 515

E12 861 936

MOTOR SUPPORT

E12 127 382 FUSE

E12 737 382

E12 935 385

E12 851 936

E12 853 936

FUSE

FUSE & VARISTOR



CAPILLARY TUBE

MF

HPS

MC

MC

MC

MC

LEV

21S4

21S4

TB1

TB2

L

RT65

RT61,RT62,RT68

F801

F911

F64,NR64

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

1

1

Remarks

RC0J60-

3RUBBERS/SET

3RUBBERS/SET

SNB130FLDH1

SNB130FLEH1

SNB130FGBH

TNB220FMCH

{ 12.7

{ 15.88

{ 6.35

{ 9.52

3P

3P

DEFROST, DISCHARGE




T3.15AL250V

T1AL250V

T2AL250V

{ 3.6x

{ 2.4x50

{ 3.6x

{ 2.4x50

{ 1.8x

{ 0.6x1000

55

OB389F--2qxp 07.9.3 5:09 PM Page 56

RoHS PARTS LIST (RoHS compliant)

MUZ-GA50VA

MUZ-GA60VA

MUZ-GA71VA

14-2. ACCESSORY

1 2

No.

Part No.

Part Name

1

2

G

G

E12 817 704

E12 444 705

DRAIN SOCKET

DRAIN CAP

Q'ty/unit


MUZ-GA50

VA -

E1

MUZ-GA60

VA -

MUZ-GA71

VA -

Diagram

E1 E2 E3 E1 E2

1

2

1

2

1

2

1

2

1

2

1

2 [ 33

Remarks

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

C Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD

Distributed in Sep. 2007. No. OB389 REVISED EDITION-F 6

Distributed in Jul. 2007. No. OB389 REVISED EDITION-E 6

Distributed in Jun. 2007. No. OB389 REVISED EDITION-D 6

Distributed in Apr. 2007. No. OB389 REVISED EDITION-C 6

Distributed in Aug. 2006. No. OB389 REVISED EDITION-B 6

Distributed in Jun. 2006. No. OB389 REVISED EDITION-A 6

Distributed in Jan. 2005. No. OB389 6

Made in Japan

New publication, effective Sep. 2007

Specifications subject to change without notice.

Mitsubishi MSZ-GA50 VA Service manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

OUTDOOR UNIT

Wireless type

Models

No. OB389

1 TECHNICAL CHANGES

2 PART NAMES AND FUNCTIONS

3 SPECIFICATION

4 NOISE CRITERIA CURVES

5 OUTLINES AND DIMENSIONS

6 WIRING DIAGRAM

7 REFRIGERANT SYSTEM DIAGRAM

8 PERFORMANCE CURVES

9 ACTUATOR CONTROL

10 SERVICE FUNCTIONS

Contents of “SERVICE FUNCTIONS” have been removed.

11 TROUBLESHOOTING

Lead wiring Housing point

12 DISASSEMBLY INSTRUCTIONS

<"Terminal with locking mechanism" Detaching points>

13 PARTS LIST (non-RoHS compliant)

PARTS LIST (non-RoHS compliant)

PARTS LIST (non-RoHS compliant)

14 RoHS PARTS LIST (RoHS compliant)

RoHS PARTS LIST (RoHS compliant)

RoHS PARTS LIST (RoHS compliant)

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