Mitsubishi Electric MCF-C13UV-E1 Manuale utente

SERVICE MANUAL

CONTENTS

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

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

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

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

5. OUTLINES AND DIMENSIONS ·························9

6. WIRING DIAGRAM···········································11

7. REFRIGERANT SYSTEM DIAGRAM··············14

8. PERFORMANCE CURVES······························16

9. MICROPROCESSOR CONTROL ····················24

10. SERVICE FUNCTIONS·····································30

11. TROUBLESHOOTING······································31

12. DISASSEMBLY INSTRUCTIONS·····················37

13. PARTS LIST······················································43

14. OPTIONAL PARTS ······················BACK COVER

Wireless type

Models

MCF-C13UV- (WH) ·MUCF-C13UV-

MCF-C18UV- (WH) ·MUCF-C18UV-

MCF-C24UV- (WH) ·MUCF-C24UV- E1E1

E1E1

No. OB299

(When installed on the ceiling)

(When installed on the floor)

FLOOR AND CEILING TYPE AIR CONDITIONERS

HFC

utilized

R407C

OB299--1.qxp 02.4.25 10:31 AM Page 1

Lubricant

Refrigerant

New refrigerant

R407C

R32: R125: R134a (23%:25%:52%)

Non-azeotropic refrigerant

Not included

A1/A1

86.2

-43.6

0.9177

42.5

Non combustible

1530

From liquid phase in cylinder

Impossible

Incompatible oil

Non

Previous refrigerant

R22

HCFC22 (100%)

Single refrigerant

Included

86.5

-40.8

0.94

44.4

Non combustible

0.055

1700

Gas phase

Possible

Compatible oil

Light yellow

Non

Refrigerant

Composition (Ratio)

Refrigerant handling

Chlorine

Safety group (ASHRAE)

Molecular weight

Boiling point (:)

Steam pressure [25:](Mpa [Gauge])

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

Combustibility

ODP w1

GWP w2

Refrigerant charge method

Additional charge on leakage

Kind

Color

Smell

w1:Ozone Destruction Parameter : based on CFC11

w2 :Global Warmth Parameter : based on CO2

INFORMATION FOR THE AIR CONDITIONER WITH R407C REFRIGERANT

This room air conditioner adopts HFC refrigerant (R407C) which never destroy the ozone layer.

Pay attention to following points.

1Take sufficient care not to allow water and other contaminations to enter the R407C refrigerant during storage and

installation, since it is more susceptible to contaminations than HCFC (R22) refrigerant.

2Clean refrigerant piping should be used.

3Composition change may occur in R407C since it is a mixed refrigerant. When charging, charge liquid refrigerant to

prevent composition change.

4Be especially careful when managing the tools.

If dust, dirt, or water mixes in the refrigerant cycle, it may cause decrease of performance.

New Specification Previous Specification

The incompatible lubricant easily separates from refrigerant

and makes the layer in the upper inside the suction muffler.

The higher position of the returning oil hole enables to return

the lubricant of the upper layer to the compressor.

Since refrigerant and lubricant are compatible each other,

lubricant returns to the compressor through the lower

position returning oil hole.

Compressor

Suction muffler

Returning oil hole

Lubricant

Refrigerant

Compressor

Suction muffler

Returning oil hole

Lubricant and Refrigerant

Compressor

-30 -20 -10 0 10 20 30 40 50 60

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

(MPa[Gauge])

R407C

R22

Conversion chart of refrigerant temperature and pressure

Saturated liquid pressure

(:)

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

international system of units(SI unit system).

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

TECHNICAL CHANGES

OB299--1.qxp 02.4.25 10:31 AM Page 2

Electronic scale for

refrigerant charging

Refrigerant

gas cylinder

operating

valve

Refrigerant gas cylinder

for R407C with siphon

Refrigerant (liquid)

Gage manifold

Outdoor unit

Indoor unit

Union

Liquid pipe

Gas pipe

Service port

Stop valve

Charge hose

5.Additional charge

For additional charging, charge the refrigerant with liquid phase slowly using a gas cylinder. If the refrigerant is charged with

gas phase, the composition of refrigerant will change. In this case, ability of the refrigerating cycle decreases or normal

operation can be impossible.

If liquid refrigerant is rapidly charged at once, the compressor may be locked.

NOTE: 1. The R407C is mixed refrigerant which consist of three different kinds of evaporative temperature. As a result, the

R407C occurs the change of composition.

2. Additional refrigerant charge has been changed by change of refrigerant.(R22 ➔R407C)

R22 : <MCF-type> 15g/m ➔R407C : <MCF-C13UV> 15g/m, <MCF-C18/C24UV> 20g/m

1.Tools dedicated for the air conditioner with R407C refrigerant

The following tools are required for R407C refrigerant. Some R22 tools can be substituted for R407C tools.

Do not use tools that are used with R22 refrigerant in order to avoid mixing oils.

R407C tools Can R22 tools be used?

Gas leak detector

A gauge manifold with a sight glass is recommended for charging the

liquid refregerant.

Hose material have been changed to improve the pressure

resistance.

Dedicated for HFC refrigerant.

Description

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

existing vacuum pumps.

Yes

New

Gauge manifold

Charge hose

Torque wrench

Flare tool

Vacuum pump

adapter

Electronic scale for

refrigerant charging Use the electronic control scale for measuring the R407C.

2.Refrigerant piping

Do not use copper pipes which are broken, deformed or discoloured.

In addition, be sure that the inner surfaces of the pipes are clean, free of hazardous sulfur and oxides, or have no dust/ dirt,

shaving particles, oil, moisture or any other contamination.

•If there is a large amount of residual oil inside the piping and joints, deterioration of the refrigerant oil will result.

3.Refrigerant oil

Apply the specific refrigeration oil (accessories) to the flare and the union seat surfaces.

4.Air purge

Use the vacuum pump for air purge to protect environments, and to avoid changing the composition of refrigerant.

OB299--1.qxp 02.4.25 10:31 AM Page 3

PART NAMES AND FUNCTIONS

INDOOR UNIT

MCF-C13UV - MCF-C18UV - MCF-C24UV - E1E1E1

(When installed on the floor)

(When the air inlet grille is opened.)

Deodorizing filter

(gray sponge type)(option)

Air filter

Remote controller

Air inlet

Operation section

Air cleaning filter

(white bellows type)(option)

Front panel

Receiving section

Operation indicator lamp

Horizontal vane

Vertical vanes

Emergency

operation switch

(When installed on the ceiling)

ACCESSORIES

Item

Installation plate

Unit fixing screw

5 o12mm

Wireless remote

controller

Remote controller

holder

Fixing screw for

3.5 o16mm (Black)

Battery (AAA) for

remote controller

Drain hose

Drain pipe cover

Knockout cover

Screw for 4 o10mm

Refrigerating oil

Q'ty

MUCF-C18UV - MUCF-C24UV - E1E1

Air inlet

Air outlet

Piping

Drain hose

Drain outlet

OUTDOOR UNIT

Air inlet

Piping

Drain hose

Air outlet

(back and side)

Drain outlet

OUTDOOR UNIT

MUCF-C13UV - E1

OB299--1.qxp 02.4.25 10:31 AM Page 4

ON/OFF

TOO

COOL

TOO

WARM

ON/OFF

FAN

TOO

WARM TOO

COOL

VANE

MODE

STOP

START

HR.

MIN.

I FEEL

COOL

DRY

CLOCK

RESET CLOCK

FAN

Open the front lid.

Signal transmitting section

Operation display section

OPERATE /STOP

(ON /OFF)button

TEMPERATURE buttons

OPERATION SELECT button

FAN SPEED CONTROL button OFF-TIMER button

HR. button

MIN. button

(TIME SET button)

ON-TIMER button

RESET button VANE CONTROL button

CLOCK SET button

MCF-C13UV - MCF-C18UV - MCF-C24UV - E1E1E1

REMOTE CONTROLLER

Open the front lid.

OB299--1.qxp 02.4.25 10:31 AM Page 5

SPECIFICATION

Indoor model

Function

Power supply

Capacity

Dehumidification

Air flow

(High/Med.W/LowW)

Power outlet

Running current

Power input

Auxiliary heater

Power factor

Starting current

Fan motor current

Model

Winding

resistance(at20:)

Dimensions WOHOD

Weight

Air direction

Sound level(High/Med.W/LowW)

Fan speed(High/Med.W/LowW)

Fan speed regulator

Thermistor RT11(at25:)

Thermistor RT12(at25:)

Outdoor model

Air flow

(High/LowW)

Compressor motor current

Fan motor current

Model

Output

Winding

resistance(at20:)

Model

Winding

resistance(at20:)

Dimensions WOHOD

Weight

Sound level (High)

Fan speed

(High/LowW)

Fan speed regulator

Refrigerant filling

capacity(R407C)

Refrigerating oil (Model)

R/h

K/h

A(kW)

rpm

K/h

rpm

MCF-C18UV - E1

Cooling

Single phase

230V, 50Hz

5.0

2.3

840/696

/570

9.7

2,180

0.36

2.29

RB4V36-AB

WHT-BLK 82.9 BLK-YLW 65.6

YLW-BLU 36.0 BLU-BRN 27.0

BRN-RED 13.7

1,100O650O180

48/44

/39

1,320/1,145

/960

MUCF-C18UV - E1

High:2,238

8.95

0.39

PE33VPEHT

1,500

C-R 1.08

C-S 2.18

RA6V50-OG

WHT-BLK 116

BLK-RED 111

High:828

1.10

1,100 (NEO22)

MCF-C24UV - E1

Cooling

Single phase

230V, 50Hz

6.4

3.6

840/744W/642W

13.1

2,920

0.36

2.19

RB4V36-DA

WHT-BLK 84.0 BLK-YLW 46.2

YLW-BLU 37.3 BLU-BRN 45.2

BRN-RED 13.6

48/45

/42

1,320/1,190

/1,060

MUCF-C24UV - E1

2,322/1,638

12.19

0.55

NE47VMHHT

2,200

C-R 0.67

C-S 2.02

RA6V60-AC

WHT-BLK 81 BLK-YLW 92

BLK-RED 102

873/629

1.85

1,400 (NEO22)

Electrical

data

Fan

motor

Special

remarks

Compressor

Electrical

data

Fan

motor

Special

remarks

Capacity

Coefficient of performance(C.O.P)

Capacity

MCF-C13UV - E1

Cooling

Single phase

230V, 50Hz

3.55

1.5

678/582

/474

6.2

1,400

0.26

2.54

RB4V19-AB

WHT-BLK 203.2 BLK-YLW 45.9

YLW-BLU 32.7 BLU-BRN 44.4

BRN-RED 23.3

44/40

/34

1,105/970

/820

MUCF-C13UV - E1

High:1,914

5.57

0.37

RE231VHSHT

1,100

C-R 2.25

C-S 4.07

RA6V33-CB

WHT-BLK 176

BLK-RED 413

780o540o255

High:725

0.95

620 (NEO22)

850o605o290

NOTE:Test conditions are based on ISO 5151

Cooling : Indoor DB27°C WB19°C

Outdoor DB35°C WB(24°C)

Indoor-Outdoor piping length 5 m

WReference value

OB299--1.qxp 02.4.25 10:31 AM Page 6

NOISE CRITERIA CURVES

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions,

Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:\

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

High

NOTCH

SPL(dB(A)) LINE

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions,

Cooling : Dry-bulb temperature 35: Wet-bulb temperature (24:)

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

High

NOTCH

SPL(dB(A)) LINE

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

Test conditions,

Cooling : Dry-bulb tempreature 35: Wet-bulb temperature (24:)

High

NOTCH

SPL(dB(A)) LINE

MCF-C13UV - E1 MUCF-C13UV - E1

MCF-C18UV - E1 MUCF-C18UV - E1

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions,

Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:\

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

High

NOTCH

SPL(dB(A)) LINE

OB299--1.qxp 02.4.25 10:31 AM Page 7

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

Test conditions,

Cooling : Dry-bulb temperature 35: Wet-bulb temperature (24:)

High

NOTCH

SPL(dB(A)) LINE

MUCF-C24UV - E1

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions,

Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:\

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

High

NOTCH

SPL(dB(A)) LINE

MCF-C24UV - E1

OB299--1.qxp 02.4.25 10:31 AM Page 8

OUTLINES AND DIMENSIONS

(When installed on the floor)

(When installed on the ceiling)

500mm or more

1000mm or more

650

616.5

80.8 906 112.8

114

1100

113

143

180

17042.5

[

12.7 (MCF-C13UV)

[

15.88 (MCF-C18/C24UV)

Gas line

[

6.35 (MCF-C13/C18UV)

[

9.52 (MCF-C24UV)

Liquid line

Wireless remote controller

162

REQUIRED SPACE

500mm or more

INDOOR UNIT

MCF-C13UV - MCF-C18UV -

MCF-C24UV - E1

E1E1

320

43-

35-

155

104

260

780

500

122

540 109

121

320

285

255

Service panel

Gas refrigerant

pipe joint

Refrigerant pipe

(flared) [12.7

Liquid refrigerant

pipe joint

Refrigerant pipe

(flared) [6.35

MUCF-C13UV - E1

100mm or more

350mm or more

REQUIRED SPACE

400mm or more

OUTDOOR UNIT

Unit: mm

OB299--1.qxp 02.4.25 10:31 AM Page 9

350

Drainage

3holes [33

248

290

310

345

100mm or more

500mm or more

350mm or more

REQUIRED SPACE

MUCF-C18UV - MUCF-C24UV - E1E1

605

29220

50 133 500 161

850 74

100

157

Service panel

Liquid refrigerant

pipe joint

Refrigerant pipe

(flared)

Gas refrigerant

pipe joint

Refrigerant pipe

(flared)

[

6.35(MUCF-C18UV)

[

9.52(MUCF-C24UV)

[

15.88

Unit: mm

OUTDOOR UNIT

OB299--1.qxp 02.4.25 10:31 AM Page 10

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