Mitsubishi MCF-C13UV-E1, MCF-C18UV-E1, MCF-C24UV-E1, MUCF-C13UV-E1, MUCF-C18UV-E1 Service Manual

FLOOR AND CEILING TYPE AIR CONDITIONERS

HFC	No. OB299
utilized
R407C

SERVICE MANUAL

Wireless type Models

MCF-C13UV- E1 (WH) ·MUCF-C13UVE1- MCF-C18UV- E1 (WH) ·MUCF-C18UVE1- MCF-C24UV- E1 (WH) ·MUCF-C24UVE1-

(When installed on the floor)

(When installed on the ceiling)

CONTENTS

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.MICROPROCESSOR CONTROL ··············

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

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

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

13.PARTS LIST·······················

14.OPTIONAL PARTS ····················

1 TECHNICAL CHANGES

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.

2 Clean 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 refrigerant	Previous refrigerant
	Refrigerant	R407C	R22
	Composition (Ratio)	R32: R125: R134a (23%:25%:52%)	HCFC22 (100%)
	Refrigerant handling	Non-azeotropic refrigerant	Single refrigerant
	Chlorine	Not included	Included
Refrigerant	Safety group (ASHRAE)	A1/A1	A1
	Saturated steam density [25:](Kg/K)	42.5	44.4
	Molecular weight	86.2	86.5
	Boiling point (:)	-43.6	-40.8
	Steam pressure [25:](Mpa [Gauge])	0.9177	0.94
	Combustibility	Non combustible	Non combustible
	ODP w1	0	0.055
	GWP w2	1530	1700
	Refrigerant charge method	From liquid phase in cylinder	Gas phase
	Additional charge on leakage	Impossible	Possible
Lubricant	Kind	Incompatible oil	Compatible oil
	Color	Non	Light yellow
	Smell	Non	Non

w1 :Ozone Destruction Parameter

: based on CFC11

w2 :Global Warmth Parameter

: based on CO2

New Specification

Previous Specification

The incompatible lubricant easily separates from refrigerant

Since refrigerant and lubricant are compatible each other,

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

lubricant returns to the compressor through the lower

The higher position of the returning oil hole enables to return

position returning oil hole.

Compressor

the lubricant of the upper layer to the compressor.

Compressor

Compressor

Returning oil hole

Suction muffler

Suction muffler

Lubricant

Returning oil hole

Refrigerant

Lubricant and Refrigerant

Conversion chart of refrigerant temperature and pressure

(MPa[Gauge])

	4.0
pressure	3.5	R407C
	2.5
	3.0	R22
liquid	2.0
Saturated	1.5
	1.0
	0.5
	0.0

-0.5

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

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])

2

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?		Description
	Gauge manifold	No	A gauge manifold with a sight glass is recommended for charging the
			liquid refregerant.
	Charge hose	No	Hose material have been changed to improve the pressure
			resistance.
	Gas leak detector	No	Dedicated for HFC refrigerant.
	Torque wrench	Yes
	Flare tool	Yes
	Vacuum pump	New	Provided to prevent the back flow of oil. This adapter enables you to use
	adapter		existing vacuum pumps.
	Electronic scale for	New	Use the electronic control scale for measuring the R407C.
	refrigerant charging

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.

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

	Union
		Stop valve
Indoor unit	Liquid pipe
Refrigerant	Gas pipe	Outdoor unit
gas cylinder
operating	Service port
valve
	Gage manifold
	Charge hose
	Refrigerant gas cylinder
	for R407C with siphon
	Refrigerant (liquid)
	Electronic scale for
	refrigerant charging

3

2 PART NAMES AND FUNCTIONS

MCF-C13UV - E1 MCF-C18UV - E1 MCF-C24UV - E1

INDOOR UNIT

(When installed on the floor)

Vertical vanes

Horizontal vane

Operation indicator lamp

Receiving section

Front panel

Air cleaning filter

(white bellows type)(option)

Air inlet

Air filter

Deodorizing filter

(gray sponge type)(option)

Operation section

(When the air inlet grille is opened.)

Remote controller

(When installed on the ceiling)

Emergency operation switch

ACCESSORIES

	Item	Q'ty
1	Installation plate	2
2	Unit fixing screw	2
	5 o 12mm
3	Wireless remote	1
	controller
4	Remote controller	1
	holder
5	Fixing screw for 4	2
	3.5 o 16mm (Black)
6	Battery (AAA) for	2
	remote controller
7	Drain hose	1
8	Drain pipe cover	1
9	Knockout cover	1
0	Screw for 9 4 o 10mm	2
1	Refrigerating oil	1

MUCF-C13UV - E1	MUCF-C18UV - E1 MUCF-C24UV - E1
OUTDOOR UNIT	OUTDOOR UNIT
Air inlet	Air inlet
(back and side)
Piping	Piping
	Drain hose
Drain hose
	Air outlet
Air outlet

Drain outlet

Drain outlet

4

MCF-C13UV - E1 MCF-C18UV - E1 MCF-C24UV - E1

REMOTE CONTROLLER

Signal transmitting section

Operation display section

OPERATE /STOP (ON /OFF)button

		PM
		AM
ON/OFF	TOO	TOO
	WARM	COOL

TEMPERATURE buttons

Open the front lid.

Open the front lid.

CLOCK

PM

AM

ON/OFF	TOO	TOO
	WARM	COOL

FAN SPEED CONTROL button	FAN	STOP
	I FEEL COOL
	VANE	START
	FAN DRY
OPERATION SELECT button	MODE	HR.
		MIN.
	RESET CLOCK
RESET button

OFF-TIMER button

ON-TIMER button

HR. button MIN. button (TIME SET button)

CLOCK SET button

VANE CONTROL button

5

3 SPECIFICATION

Indoor model

Function

Power supply

	Capacity	Air flow(High/Med.W/LowW)	K /h
		Capacity	kW
		Dehumidification	R/h
		Power outlet	A
		Running current	A
	Electrical data	Power input	W
		Auxiliary heater	A(kW)
		Power factor	%
		Starting current	A
		Fan motor current	A
	Coefficient of performance(C.O.P)
	Fan motor	Model
		Winding
		resistance(at20:)	"
		Dimensions WOHOD	mm
		Weight	kg
		Air direction
	Special remarks	Sound level(High/Med.W/LowW)	dB
		Fan speed(High/Med.W/LowW)	rpm
		Fan speed regulator
		Thermistor RT11(at25:)	k"
		Thermistor RT12(at25:)	k"
		Outdoor model
	Capacity Air flow(High/LowW)		K /h
	Electrical data	Fan motor current	A
		Compressor motor current	A
	Compressor	Model
		Output	W
		Winding	"
		resistance(at20:)
	Fan motor	Model	"
		Winding
		resistance(at20:)
		Dimensions WOHOD	mm
		Weight	kg
		Sound level (High)	dB
	Special remarks	Fan speed(High/LowW)	rpm
		Fan speed regulator
		Refrigerant filling	kg
		capacity(R407C)
		Refrigerating oil (Model)	cc

MCF-C13UV - E1				MCF-C18UV - E1				MCF-C24UV - E1
Cooling				Cooling				Cooling
Single phase				Single phase				Single phase
230V, 50Hz				230V, 50Hz				230V, 50Hz
3.55				5.0				6.4
1.5				2.3				3.6
678/582W/474W				840/696W/570W				840/744W/642W
10				15				25
6.2				9.7				13.1
1,400				2,180				2,920
98				98				97
34				50				83
0.26				0.36				0.36
2.54				2.29				2.19
RB4V19-AB				RB4V36-AB				RB4V36-DA
WHT-BLK 203.2 BLK-YLW 45.9				WHT-BLK 82.9 BLK-YLW 65.6				WHT-BLK 84.0 BLK-YLW 46.2
YLW-BLU 32.7 BLU-BRN 44.4				YLW-BLU 36.0 BLU-BRN 27.0				YLW-BLU 37.3 BLU-BRN 45.2
BRN-RED 23.3				BRN-RED 13.7				BRN-RED 13.6
				1,100O650O180
			26
			5
44/40W/34W				48/44W/39W				48/45W/42W
1,105/970W/820W				1,320/1,145W/960W				1,320/1,190W/1,060W
			3
			10
			10
MUCF-C13UV - E1				MUCF-C18UV - E1				MUCF-C24UV - E1
High:1,914				High:2,238				2,322/1,638W
5.57				8.95				12.19
0.37				0.39				0.55
RE231VHSHT				PE33VPEHT				NE47VMHHT
1,100				1,500				2,200
C-R 2.25				C-R 1.08				C-R 0.67
C-S 4.07				C-S 2.18				C-S 2.02
RA6V33-CB				RA6V50-OG				RA6V60-AC
WHT-BLK 176				WHT-BLK 116				WHT-BLK 81 BLK-YLW 92
BLK-RED 413				BLK-RED 111				BLK-RED 102
780o540o255						850o605o290
34				48
								61
49				52				53
High:725				High:828				873/629W
1				1				2
0.95				1.10				1.85
620 (NEO22)				1,100 (NEO22)				1,400 (NEO22)

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

W Reference value

6

4 NOISE CRITERIA CURVES

MCF-C13UV - E1

MUCF-C13UV - E1

NOTCH

SPL(dB(A))

LINE

NOTCH

SPL(dB(A))

LINE

High

44

High

49

Test conditions,

Test conditions,

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

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

	90										90
BAR										BAR
MICRO	80									MICRO	80
dB re 0.0002	70								NC-70	dB re 0.0002	70
	60										60
LEVEL,										LEVEL,
									NC-60
	50										50
PRESSURE										PRESSURE
									NC-50
	40										40
									NC-40
SOUND										SOUND
	30										30
									NC-30
BAND										BAND
	20	APPROXIMATE									20
OCTAVE		THRESHOLD OF								OCTAVE
		HEARING FOR							NC-20
		CONTINUOUS
	10	NOISE									10
		63	125	250	500	1000	2000	4000	8000

		NC-70
		NC-60
		NC-50
		NC-40
		NC-30
	APPROXIMATE
	THRESHOLD OF
	HEARING FOR	NC-20
	CONTINUOUS
	NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz						BAND CENTER FREQUENCIES, Hz
MCF-C18UV - E1						MUCF-C18UV - E1
	NOTCH	SPL(dB(A))	LINE				NOTCH	SPL(dB(A))	LINE
	High	48					High	52

Test conditions,

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

	90
BAR
MICRO	80
dB re 0.0002	70								NC-70
	60
LEVEL,
									NC-60
	50
PRESSURE
									NC-50
	40
									NC-40
SOUND
	30
									NC-30
BAND
	20	APPROXIMATE
OCTAVE		THRESHOLD OF
		HEARING FOR							NC-20
		CONTINUOUS
	10	NOISE
		63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

Test conditions,

		Cooling : Dry-bulb tempreature 35: Wet-bulb temperature (24:)
	90
BAR
MICRO	80
dB re 0.0002	70								NC-70
	60
LEVEL,
									NC-60
	50
PRESSURE
									NC-50
	40
									NC-40
SOUND
	30
									NC-30
BAND
	20	APPROXIMATE
OCTAVE		THRESHOLD OF
		HEARING FOR							NC-20
		CONTINUOUS
	10	NOISE
		63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

7

MCF-C24UV - E1		MUCF-C24UV - E1
NOTCH	SPL(dB(A)) LINE	NOTCH	SPL(dB(A)) LINE
High	48	High	53

Test conditions,

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

	90
BAR
MICRO	80
dB re 0.0002	70								NC-70
	60
LEVEL,
									NC-60
	50
PRESSURE
									NC-50
	40
									NC-40
SOUND
	30
									NC-30
BAND
	20	APPROXIMATE
OCTAVE		THRESHOLD OF
		HEARING FOR							NC-20
		CONTINUOUS
	10	NOISE
		63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

Test conditions,

	Cooling : Dry-bulb temperature 35: Wet-bulb temperature (24:)
	90
BAR	80
MICRO
dB re 0.002	70								NC-70
	60
LEVEL,
									NC-60
	50
PRESSURE
									NC-50
	40
									NC-40
SOUND
	30
									NC-30
BAND
	20	APPROXIMATE
OCTAVE		THRESHOLD OF
		HEARING FOR							NC-20
		CONTINUOUS
	10	NOISE
		63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

8

5 OUTLINES AND DIMENSIONS

MCF-C13UV - E1	MCF-C18UV - E1
MCF-C24UV - E1
INDOOR UNIT
REQUIRED SPACE	80.8
(When installed on the floor)
500mm or more	500mm or more

		650	616.5
500mm	(When installed on the ceiling)
	or
	more		170
	more	500mm or more	42.5
	1000mm or

58

Unit: mm

114

906	16	112.8

			93
			77
				113	143
		1100			180
			Gas line
	19	Liquid line	[12.7 (MCF-C13UV)
			[15.88	(MCF-C18/C24UV)

MUCF-C13UV - E1

OUTDOOR UNIT

320

15

121

109

540

260
10	40	122

500

780

[6.35 (MCF-C13/C18UV) [9.52 (MCF-C24UV)

162

Wireless remote controller

	moreor
REQUIRED SPACE
	100mm	or	more
100mm		100mm
	or
	more

255	285	320	or	more
			400mm

350mm	or	more

		25
			Service panel
			Liquid refrigerant
			pipe joint
			Refrigerant pipe
			(flared) [6.35
			-
			35
			-
155			43
	90		Gas refrigerant
			pipe joint
		104	Refrigerant pipe
74			(flared) [12.7

9

MUCF-C18UV - E1	MUCF-C24UV - E1		REQUIRED SPACE
OUTDOOR UNIT				more
				or
				100mm
			100mm	or
350	20			more
35
248	290	310	345
				more
				or
				500mm

Drainage 3holes [33

30

Unit: mm

ormore 100mm

350mm	or	more

605

20 292

157

100

50 133

500	74
850

30 35

161

Service panel

Liquid refrigerant pipe joint Refrigerant pipe (flared)

[6.35(MUCF-C18UV) [9.52(MUCF-C24UV)

Gas refrigerant pipe joint Refrigerant pipe (flared) [15.88

10

6

WIRING DIAGRAM

MCF-C13UV - E1

INDOOR UNIT

MODEL WIRING DIAGRAM

CIRCUIT BREAKER

TB

PE GRN/YLW

N

BLU

L

HIC1

BRN

3

4

NR11

POWER SUPPLY

2

52C

C11

~/N 230V

1

3

SR144

50Hz

TRANS

CN201

SR143

GRN/YLW

F11

SR142

N

CN

CN

CN

CN

TO OUTDOOR

BLU

101

104

113

151 ELECTRONIC CONTROL P.C BOARD

UNIT

6

CONNECTING

230V~

2

WHT

5

5

4

5

5

MV

REMOTE

DISP/

AUTO RESTART

SW/THERMO

RECEIVER

P.C.BOARD

CONTROLLER

P.C.BOARD

ASSY

RT11

	CN	2 2			RT12
	112
	LDCOM	WHT 1		WHT
	LDC11	ORN	2	ORN
	LDC12	RED	3	RED
	LDFH	BLK	4	BLK	MF
	LDFM	YLW		YLW
			5
	LDFL	BLU	6	BLU

7	BRN
8	GRN/YLW

SYMBOL	NAME	SYMBOL	NAME	SYMBOL	NAME
C11	INDOOR FAN CAPACITOR	MV	VANE MOTOR	SR142~SR144	SOLID STATE RELAY
F11	FUSE (3.15A)	NR11	VARISTOR	TB	TERMINAL BLOCK
HIC1	DC/DC CONVERTER	RT11	ROOM TEMPERATURE THERMISTOR	52C	CONTACTOR
MF	INDOOR FAN MOTOR(INNER PROTECTOR)	RT12	INDOOR COIL THERMISTOR
NOTE:1. About the outdoor side electric wiring, refer to the outdoor unit electric wiring diagram for servicing.					VG79B093H02

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

3.Symbols below indicate;

:Terminal block, : Connector

MUCF-C13UV - E1

OUTDOOR UNIT MODEL WIRING DIAGRAM

	TB
230V~ 2	WHT

	WHT		WHT			C
FROM					C1
	N	F	BLU
INDOOR UNIT
					RED	MC
CONNECTING					S
						R
					BLK
	GRN/YLW		C2
				1 WHT
			WHT
			BLU	2 BLK	MF
			RED	3 RED

SYMBOL	NAME		SYMBOL	NAME	SYMBOL	NAME
C1	COMPRESSOR CAPACITOR		F	FUSE (2A)	MF	OUTDOOR FAN MOTOR (INNER PROTECTOR)
C2	OUTDOOR FAN CAPACITOR		MC	COMPRESSOR (INNER PROTECTOR)	TB	TERMINAL BLOCK
NOTES: 1.About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.						VG79B098H02
2.Use copper conductors only. (For field wiring)
3.Symbols below indicate.
	: Terminal block	: Connector

11

MCF-C18UV - E1
INDOOR UNIT			MODEL WIRING DIAGRAM
CIRCUIT BREAKER		TB
			PE GRN/YLW
	N		BLU
	L							HIC1
			BRN
							3	4	NR11
POWER SUPPLY							2
								52C		C11
~/N 230V							1
								3		SR144
50Hz								TRANS
							CN201
										SR143
			GRN/YLW					F11		SR142
		N		CN	CN	CN	CN	ELECTRONIC CONTROL P.C BOARD
TO OUTDOOR			BLU	101	104	113	151
UNIT							6
CONNECTING	230V~	2	WHT		5
						5

4 5

MV

5

	CN	2 2			RT12
	112
	LDCOM	WHT 1		WHT
	LDC11	ORN	2	ORN
	LDC12	RED	3	RED
	LDFH	BLK	4	BLK	MF
	LDFM	YLW		YLW
			5
	LDFL	BLU	6	BLU

7	BRN
8	GRN/YLW

	DISP/	AUTO RESTART		SW/THERMO
REMOTE				P.C.BOARD
	RECEIVER
CONTROLLER		ASSY
	P.C.BOARD
				RT11
SYMBOL	NAME		SYMBOL	NAME	SYMBOL	NAME
C11	INDOOR FAN CAPACITOR		MV	VANE MOTOR	SR142~SR144	SOLID STATE RELAY
F11	FUSE (3.15A)		NR11	VARISTOR	TB	TERMINAL BLOCK
HIC1	DC/DC CONVERTER		RT11	ROOM TEMPERATURE THERMISTOR	52C	CONTACTOR
MF	INDOOR FAN MOTOR (INNER PROTECTOR)		RT12	INDOOR COIL THERMISTOR
NOTE:1. About the outdoor side electric wiring, refer to the outdoor unit electric wiring diagram for servicing.						VG79B091H02

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

3.Symbols below indicate;

:Terminal block, : Connector

MUCF-C18UV - E1

OUTDOOR UNIT

FROM INDOOR UNIT CONNECTING

230V~

MODEL WIRING DIAGRAM
TB
2		WHT
WHT			C
		C1 RED
N	BLU		MC
		S
			R

F

BLK

GRN/YLW	C2		RED
	RED	1
	ORN	2	ORN	MF
	WHT	3	WHT
	BLU		BLK
		4

SYMBOL	NAME	SYMBOL	NAME	SYMBOL	NAME
C1	COMPRESSOR CAPACITOR	F	FUSE (2A)	MF	OUTDOOR FAN MOTOR (INNER PROTECTOR)
C2	OUTDOOR FAN CAPACITOR	MC	COMPRESSOR (INNER PROTECTOR)	TB	TERMINAL BLOCK
NOTE:1. About the indoor side electric wiring, refer to the indoor unit electric wiring diagram for servicing.					VG79B103H02

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

3.Symbols below indicate;

:Terminal block, : Connector

12

MCF-C24UV - E1

INDOOR UNIT

MODEL WIRING DIAGRAM

CIRCUIT BREAKER

TB

PE GRN/YLW

N

BLU

CN

2

2

RT12

HIC1

112

L

BRN

LDCOM

WHT

WHT

3

4

1

POWER SUPPLY

NR11

LDC11

ORN

2

ORN

2

52C

C11

LDC12

RED

3

RED

~/N 230V

1

3

SR144

LDFH

BLK

BLK

MF

50Hz

CN201

TRANS

4

SR143 LDFM

YLW

5

YLW

GRN/YLW

F11

SR142 LDFL

BLU

6

BLU

230V~

2 WHT

7

BRN

CN

CN

CN

CN

TO OUTDOOR

ELECTRONIC CONTROL P.C BOARD

8

101

104

113

151

GRN/YLW

N BLU

UNIT

5

6

CONNECTING

3

5

230V~

5

4

RED

5

MV

REMOTE

DISP/

AUTO RESTART

SW/THERMO

CONTROLLER

RECEIVER

P.C.BOARD

ASSY

P.C.BOARD

RT11

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

C11	INDOOR FAN CAPACITOR	MV	VANE MOTOR	SR142~SR144	SOLID STATE RELAY
F11	FUSE (3.15A)	NR11	VARISTOR	TB	TERMINAL BLOCK
HIC1	DC/DC CONVERTER	RT11	ROOM TEMPERATURE THERMISTOR	52C	CONTACTOR
MF	INDOOR FAN MOTOR (INNER PROTECTOR)	RT12	INDOOR COIL THERMISTOR
NOTE:1. About the outdoor side electric wiring, refer to the outdoor unit electric wiring diagram for servicing.					VG79B092H03

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

3.Symbols below indicate;

:Terminal block, : Connector

MUCF-C24UV - E1

OUTDOOR UNIT MODEL WIRING DIAGRAM

C2

CONNECTING	230V~
INDOOR UNIT	230V~
FROM

TB		F	TB2					X1	3
3	RED			RED			GRY 5
		RED	1			CR
			WHT				6
									1
	A2/b	A1/a						BLU
				RED		RED7	8		YLW	BLK WHT ORN	RED
		52C
N	BLU				26F1		X1
									6 5 4 3 2 1
				BLU					YLW	BLK WHT ORN	RED
				C1 RED S
		BLU					C
						BLK				MF
2		52C					MC
	WHT 2					WHT R
		1

GRN/YLW

SYMBOL	NAME	SYMBOL	NAME	SYMBOL	NAME
CR	CR SURGE ABSORBER	MC	COMPRESSOR (INNER PROTECTOR)	X1	FAN MOTOR RELAY
C1	COMPRESSOR CAPACITOR	MF	OUTDOOR FAN MOTOR (INNER PROTECTOR)	26F1	THERMOSTAT (AIRFLOW CONTROL)
C2	OUTDOOR FAN CAPACITOR	TB	TERMINAL BLOCK	52C	COMPRESSOR CONTACTOR
F	FUSE (2A)	TB2	TERMINAL BLOCK

VG79B104H01

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

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

3.Symbols below indicate;

:Terminal block, : Connector

13

7 REFRIGERANT SYSTEM DIAGRAM

Unit:mm

MCF-C13UV -

MUCF-C13UV -

E1

E1

Refrigerant pipe

INDOOR UNIT

OUTDOOR UNIT

[12.7

Indoor

(With heat insulation)

Stop valve

heat

(with service port)

exchanger

Outdoor

heat

Indoor coil Distributor

Flared

Compressor

exchanger

connection

thermistor

RT12

Room

temperature

Stop valve

Strainer

thermistor

Capillary tube

RT11

Refrigerant pipe

[3.0 [1.6 600

[6.35

(With heat insulation)

Refrigerant flow

MCF-C18UV -

E1

MUCF-C18UV -

E1

INDOOR UNIT

Refrigerant pipe

OUTDOOR UNIT

{15.88

Indoor

(With heat insulation)

Stop valve

heat

(with service port)

exchanger

Outdoor

heat

Indoor coil Distributor

Flared

Compressor

exchanger

connection

thermistor

RT12

Room

temperature

Stop valve

Strainer

thermistor

Capillary tube

RT11

Refrigerant pipe

{4.0 {2.4 1200

{6.35

(With heat insulation)

Refrigerant flow

14

Unit:mm

MCF-C24UV - E1

MUCF-C24UV - E1

Refrigerant pipe

INDOOR UNIT

OUTDOOR UNIT

{15.88

Indoor

(With heat insulation)

Stop valve

heat

(with service port)

exchanger

Outdoor

heat

Indoor coil Distributor

Flared

Compressor

exchanger

connection

thermistor

RT12

Room

temperature

Stop valve

Strainer

thermistor

RT11

Capillary tube

Refrigerant pipe

[4.0 [2.4 1100

{9.52

(With heat insulation)

Refrigerant flow

REFRIGERANT PIPING MAX. LENGTH & MAX. HEIGHT DIFFERENCE

Refrigerant piping

Piping size O.D. : mm

Model

Max. length : m

Gas

Liquid

A

MCF-C13UV - E1

15

{12.7

{6.35

MCF-C18UV - E1

{15.88

MCF-C24UV - E1

{9.52

Indoor unit

Outdoor unit

*Height difference should be within 5m regardless of which unit, indoor or outdoor position is high.

A: Refrigerant piping Max. length

15m

Max. Height difference * 5m

ADDITIONAL REFRIGERANT CHARGE (R407C : g)

If pipe length exceeds 7m, additional refrigerant (R407C) charge is required.

	Model	Outdoor unit			Refrigerant piping length (one way)
		precharged
			7m	8m	9m	10m	11m	12m	13m	14m	15m
	MCF-C13UV - E1	950	0	15	30	45	60	75	90	105	120
	MCF-C18UV - E1	1,100	0	20	40	60	80	100	120	140	160
	MCF-C24UV - E1	1,850	0	20	40	60	80	100	120	140	160

Calculation : MCF-C13UV g=15g/m (Refrigerant piping length (m)-7)

MCF-C18/C24UV g=20g/m (Refrigerant piping length (m)-7)

15