Mitsubishi MUZ-FD25VA-E1, MUZ-FD25VAH-E1, MUZ-FD35VA-E1, MUZ-FD35VAH-E1, MUZ-FD50VA-E1 Service Manual

Revision B:

SPLIT-TYPE AIR CONDITIONERS

• MUZ-FD50VA- E1 has been added.

Please void OBH489 REVISED EDITION-A.

OUTDOOR UNIT

SERVICE MANUAL

HFC	No. OBH489
utilized	REVISED EDITION-B
R410A

Models

MUZ-FD25VA - E1 MUZ-FD25VAH - MUZ-FD35VA - E1 MUZ-FD35VAH - MUZ-FD50VA - E1

E1 , E2

E1

Indoor unit service manual

MSZ-FD•VA Series (OBH488)

CONTENTS

	1.	TECHNICAL CHANGES ··································· 3
	2. PART NAMES AND FUNCTIONS····················· 4
	3.	SPECIFICATION················································ 5
	4. NOISE CRITERIA CURVES ······························ 8
	5. OUTLINES AND DIMENSIONS ························ 9
	6.	WIRING DIAGRAM·········································· 10
	7. REFRIGERANT SYSTEM DIAGRAM ············· 13
	8. PERFORMANCE CURVES ····························· 15
	9. ACTUATOR CONTROL··································· 29
	10. SERVICE FUNCTIONS···································· 30
	11. TROUBLESHOOTING ····································· 31
MUZ-FD25/35	12. DISASSEMBLY INSTRUCTIONS···················· 55

PARTS CATALOG (OBB489)

NOTE:

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

Revision A:

•MUZ-FD25VAH- E2 has been added.

•Power outlet has been corrected.

Revision B:

• MUZ-FD50VA- E1 has been added.

2

1 TECHNICAL CHANGES

MUZ-FD25VA - E1

MUZ-FD25VAH - E1

MUZ-FD35VA - E1

MUZ-FD35VAH - E1

MUZ-FD50VA - E1

1. New model

MUZ-FD25VAH - E1 → MUZ-FD25VAH - E2

1. Power outlet E1 : 12 A, E2 : 10 A

3

2 PART NAMES AND FUNCTIONS

MUZ-FD25VA MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH

Air inlet (back and side)

Piping

Drain hose

Air outlet

Drain outlet

MUZ-FD50VA

Air inlet (back and side)

Piping

Drain hose

Air outlet

Drain outlet

ACCESSORIES

		MUZ-FD25/35VA	MUZ-FD50VA
	Drain socket	1	1
	Drain cap	-	2

4

3

SPECIFICATION

Outdoor model

MUZ-FD25VA

MUZ-FD25VAH

MUZ-FD35VA

MUZ-FD35VAH

Power supply

Single phase, 230 V, 50 Hz

Capacity

Cooling

kW

2.5 (1.1-3.5)

3.5 (1.1-4.0)

3.5 (0.8-4.0)

Rated frequency (Min.-Max.)

Heating

3.2 (1.5-5.5)

3.2 (1.5-6.3)

4.0 (1.5-6.3)

4.0 (1.3-7.7)

Breaker Capacity

A

10

E1 : 12

10

12

E2 : 10

data

Power input

1 (Total)

Cooling

W

485

850

835

Heating

610

865

850

Running current

1 (Total)

Cooling

A

2.4

3.9

3.8

Electrical

Heating

91

94

95

Power factor

1 (Total)

%

Heating

2.9

4.0

3.9

Cooling

88

95

96

Starting current

1 (Total)

A

2.9

4.0

3.9

Coefficient of performance

Cooling

5.15

4.12

4.19

(COP) 1 (Total)

Heating

5.25

4.62

4.71

Model

SNB130FGBH

Compressor

Output

W

900

Current

1

Cooling

A

1.88

3.31

3.21

Heating

2.30

3.33

3.23

Refrigeration oil (Model)

cc

450 (NEO22)

Fan motor

Model

RC0J50-EA

Current

1

Cooling

A

0.27

0.32

Heating

0.30

0.35

Dimensions W ×

H × D

mm

800 × 550 × 285

Weight

kg

36

Dehumidification

Cooling

/h

1.4

2.0

Cooling

High

1,872

Air flow 1

Low

m3/h

1,086

Heating

High

2,016

remarks

Med.

1,776

Sound level

1

Low

dB(A)

46

1,386

Cooling

47

Special

Heating

50

Cooling

High

810

Fan speed

Low

rpm

490

Heating

High

870

Med.

770

Low

610

Fan speed

regulator

3

Refrigerant filling capacity (R410A)

kg

1.15

NOTE: Test conditions are based on ISO 5151.

Wet-bulb temperature

19°C

Cooling: Indoor

Dry-bulb temperature 27°C

Outdoor Dry-bulb temperature 35°C

Heating: Indoor

Dry-bulb temperature 20°C

Wet-bulb temperature

6°C

Outdoor Dry-bulb temperature 7°C

Refrigerant piping length (one way): 5 m

1 Measured under rated operating frequency.

5

				Outdoor model
				Power supply
Capacity									Cooling	kW
Rated frequency (Min.-Max.)									Heating
Breaker Capacity									Cooling	A
data	Power input			1 (Total)						W
									Heating
	Running current				1 (Total)				Cooling	A
Electrical
									Heating
	Power factor			1 (Total)						%
									Heating
									Cooling
	Starting current				1 (Total)					A
Coefficient of performance									Cooling
(COP) 1 (Total)			Model						Heating
Compressor			Output						Cooling	W
			Current			1				A
									Heating
										cc
			Refrigeration oil (Model)
Fan motor			Model
			Current			1			Cooling	A
									Heating
Dimensions W ×			H × D							mm
Weight										kg
	Dehumidification								Cooling	/h
				Cooling					High
									Med.
	Air flow 1								Low	m3/h
				Heating					High
remarks									Med.
	Sound level			1					Cooling	dB(A)
									Low
Special									Heating
				Cooling					High
									Med.
	Fan speed								Low	rpm
				Heating					High
									Med.
	Fan speed		regulator						Low
										kg
	Refrigerant filling capacity (R410A)
NOTE: Test conditions are based on ISO 5151.
	Cooling: Indoor					Dry-bulb temperature 27°C
			Outdoor Dry-bulb temperature 35°C
	Heating: Indoor					Dry-bulb temperature 20°C
			Outdoor Dry-bulb temperature 7°C

Refrigerant piping length (one way): 5 m

1 Measured under rated operating frequency.

MUZ-FD50VA

Single phase, 230 V, 50 Hz

5.0 (1.5-5.8)

5.8 (1.5-7.8)

16

1,500

1,550

6.7

6.9

98

98

6.9

3.33

3.74

SNB172FDGH

1,200

5.40

5.62

450 (NEO22)

RC0J60-AA

0.72

840 × 850 × 330

55

1.7

–

2,940

1,680

2,940

2,940

2,100

54

56

–

800

480

800

800

580

2

1.55

Wet-bulb temperature	19°C
Wet-bulb temperature	6°C

6

Specifications and rating conditions of main electric parts

Model	MUZ-FD25VA	MUZ-FD25VAH	MUZ-FD35VA	MUZ-FD35VAH
Item

Current transformer	(CT)		20 A
	(CT761, CT781)		15 A
Smoothing capacitor	(C61, C62, C63)		620 μF 420 V
Diode module	(DB61)		15 A 600 V
	(DB65)		25 A 600 V
Fuse	(F61)		T20AL250V
	(F701, F801, F901)		T3.15AL250V
Defrost heater	(H)	—	230 V 130 W	—	230 V 130 W
Intelligent power module	(IPM)		20 A 600 V
Expansion valve coil	(LEV)		DC 12 V
Reactor	(L61)		23.0 mH
	(R61, R62)		180 mΩ 5 W (2 elements)
Current-detecting resistor	(R825)		25 mΩ 5 W
	(R937, R938, R939)		430 mΩ 2 W
Current-limiting PTC thermistor	(PTC64, PTC65)		33 Ω
Terminal block	(TB1, TB2)		3 P
	(X63)		3 A 250 V
Relay	(X64)		20 A 250 V
	(X66)	—	3 A 250 V	—	3 A 250 V
R.V.coil	(21S4)		AC 220 - 240 V
Heater protector	(26H)	—	Open 45°C	—	Open 45°C
IGBT	(TR821)		30 A 600 V
	Model		MUZ-FD50VA
Item
	(CT1, CT2)		20 A
Current transformer
	(CT61)		20 A
Smoothing capacitor	(CB1, CB2, CB3)		560 μF 450 V
Fuse	(F64)		T2.0AL250V
	(F801)		T3.15AL250V
Expansion valve coil	(LEV)		DC 12 V
Intelligent power module	(IPM)		15 A 600 V
	(HC930)		3 A 600 V
High pressure switch	(HPS)		ACB-DB156
Reactor	(L)		600 μH 20 A
Power factor correct module	(PFC)		20 A 600 V
Current-limiting PTC thermistor	(PTC64, PTC65)		33 Ω
Current-detecting resistor	(R937A, R937B)		1.1 Ω 2 W
	(RS1, RS2, RS3, RS4)		40 mΩ 7 W (2 elements)
Solenoid coil relay	(SSR61)		0.5 A 600 V
Terminal block	(TB1, TB2)		3 P
Relay	(X64)		20 A 250 V
R.V. coil	(21S4)		AC 220 - 240 V

7

4 NOISE CRITERIA CURVES

MUZ-FD25VA MUZ-FD25VAH

FUNCTION SPL(dB(A))

LINE

				COOLING		46
				HEATING
BAR	90
MICRO	80
0.0002	70							NC-70
0dB re
	60
LEVEL,
								NC-60
	50
PRESSURE
								NC-50
	40
								NC-40
SOUND
	30
								NC-30
BAND
	20
OCTAVE
					NC-10			NC-20
	10
		125	250	500	1000	2000	4000	8000
	63

BAND CENTER FREQUENCIES, Hz

MUZ-FD35VA MUZ-FD35VAH

FUNCTION SPL(dB(A))

LINE

				COOLING		47
				HEATING		50
BAR	90
0.0002 MICRO	80
	70							NC-70
dB re	60
LEVEL,
								NC-60
	50
PRESSURE
								NC-50
	40
								NC-40
SOUND
	30
BAND								NC-30
	20
OCTAVE
					NC-10			NC-20
	10
		125	250	500	1000	2000	4000	8000
	63

BAND CENTER FREQUENCIES, Hz

MUZ-FD50VA

Test conditions

Cooling : Dry-bulb temperature 35 °C

Heating : Dry-bulb temperature 7 °C Wet-bulb temperature 6 °C

OUTDOOR UNIT

FUNCTION	SPL(dB(A))	LINE
COOLING	54	1 m

				HEATING		56		MICROPHONE
BAR	90
MICRO	80
0.0002	70							NC-70
0dB re
	60
LEVEL,
								NC-60
PRESSURE	50
								NC-50
	40
SOUND								NC-40
	30
BAND								NC-30
	20
OCTAVE
					NC-10			NC-20
	10	125	250	500	1000	2000	4000	8000
	63
			BAND CENTER FREQUENCIES, Hz

8

5 OUTLINES AND DIMENSIONS

MUZ-FD25VA MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH

REQUIRED SPACE

Unit: mm

Basically open 100 mm or more without any obstruction in front and on both sides of the unit.

	400	Drain hole ø42 (25/35VA)
		Drain hole ø33 (25/35VAH)
	Air in

100	mm
	or
	more

ormore mm 100

344.5

285

44

Air in

Bolt pitch for installation 304-325

ormore mm 200

350	mm
	or
	more

2 holes 10 × 21

Air out

22.3

Handle

550 280 10

150

302.5

500 Bolt pitch for installation

800

MUZ-FD50VA

515

	40	17.5	Open two sides of left,
			right, or rear side.

Service panel

23

Liquid refrigerant pipe joint

Refrigerant pipe (flared) ø6.35

		35°	43°
164.5		Gas refrigerant pipe joint
		Refrigerant pipe (flared) ø9.52
69	99.5	170.5

Service port

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

330

850

299

66

Air in

51 34

Air in

170 Air out 500

840

121

430

Drain holes ø33

40

360	100	mm
		or
		more

100 mm or more

200 mm or more if there are obstacles to both sides

4 holes 10 × 21

80

Open as a rule

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

155

90

350	mm
	or
	more

Service panel

Liquid refrigerant pipe joint Refrigerant pipe

(flared) ø6.35

30° 35°

Gas refrigerant pipe joint Refrigerant pipe

198	(flared) ø12.7

9

6 WIRING DIAGRAM

MUZ-FD25VA MUZ-FD35VA

10

MUZ-FD25VAH MUZ-FD35VAH

11

MUZ-FD50VA

12

7 REFRIGERANT SYSTEM DIAGRAM

MUZ-FD25VA MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH

Unit: mm

Refrigerant pipe ø9.52

4-way valve

(with heat insulator)

Muffler

Outdoor heat

Stop valve

exchanger

temperature

(with service port)

Muffler

Outdoor

thermistor

Flared connection

Discharge

heat

RT68

temperature

exchanger

thermistor

RT62

Compressor

Ambient

temperature

thermistor

Defrost

RT65

thermistor

RT61

Capillary tube

ø3.0×ø1.8×600(×2)

Strainer

Flared connection

Capillary tube

LEV

#100

R.V. coil

ø3.0×ø2.0×240

heating ON

Stop valve

cooling OFF

Refrigerant pipe ø6.35

(with strainar)

Refrigerant flow in cooling

(with heat insulator)

Refrigerant flow in heating

MUZ-FD50VA

Refrigerant pipe ø12.7

Muffler

(with heat insulator)

4-way valve

#100

Stop valve			High-pressure
(with service port)				Outdoor
Flared connection	Discharge		switch
				heat	Ambient
	temperature		Defrost	exchanger	temperature
	thermistor				thermistor
	RT62		thermistor		RT65
			RT61
	Compressor			Outdoor heat
				exchanger
				temperature
				thermistor
Flared connection				RT68
	Strainer	LEV	Strainer
				R.V. coil
Receiver #100			#100
				heating ON
Stop valve	Capillary tube			cooling OFF
Refrigerant pipe ø6.35	ø3.6×ø2.4×50		Refrigerant flow in cooling
(with heat insulator)			Refrigerant flow in heating

13

MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE

		Refrigerant piping: m		Piping size O.D: mm
		Max. Length	Max. Height difference
		A	B	Gas	Liquid
	MUZ-FD25	20	12	9.52
	MUZ-FD35				6.35
	MUZ-FD50	30	15	12.7

Indoor unit

Max. Height difference B

Max. Length A

Outdoor unit

ADDITIONAL REFRIGERANT CHARGE (R410A: g)

Model		Outdoor unit									Refrigerant piping length (one way)
		precharged			5 m		6 m		7 m	8 m		9 m	10 m		11 m	12 m		13 m		14 m		15 m	20 m
MUZ-FD25		1,150			0	0			0	90		120	150		180	210		240		270		300	450
MUZ-FD35
											Calculation: X g = 30 g/m × (Refrigerant piping length (m) - 5)
Model	Outdoor unit									Refrigerant piping length (one way)
	precharged			7 m				10 m				15 m			20 m			25 m				30 m
MUZ-FD50	1,550			0				90				240			390			540				690

Calculation: X g = 30 g/m × (Refrigerant piping length (m) – 7) NOTE: Refrigerant piping exceeding 7 m requires additional refrigerant charge according to the calculation.

14

8 PERFORMANCE CURVES

MUZ-FD25VA MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH MUZ-FD50VA

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 ~ 264 V, 50 Hz

(2)AIR FLOW

	Air flow should be set at MAX.
	(3) MAIN READINGS			}
	(1)	Indoor intake air wet-bulb temperature:	°C [WB]
	(2)	Indoor outlet air wet-bulb temperature:	°C [WB]		Cooling
	(3)	Outdoor intake air dry-bulb temperature:	°C [DB]
	(4) Total input:		W
	(5)	Indoor intake air dry-bulb temperature:	°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 following chart 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	Wet and dry-bulb
thermometers	thermometers
FRONT VIEW	BACK VIEW

8-1. CAPACITY AND INPUT CURVES

air Wet-bulb temperature	difference (°C)
Indoor

6.5

6.0

5.5

5.1

4.6

4.1

3.7

MUZ-FD25VA MUZ-FD25VAH

	9.1	10.1		1.5			Cooling capacity (at Rated frequency)
	8.4	9.3	factors	1.4								Indoor intake air Wet-bulb
												temperature(		)
	7.7	8.5	correction	1.3
	7.0	7.7		1.2										26
	6.3	7.0	Capacity	1.1										24
	5.7	6.3		1.0
	5.1	5.6		0.9											22
															20
															18
FD35VA-MUZ	FD35VAH-MUZ	FD50VA-MUZ		-10	-5	0	5	10	15	20	25	30	35	40	45
						Outdoor intake air Dry-bulb temperature(°C)

15

air Wet-bulb temperature	difference (°C)
Indoor

air Dry-bulb temperature	difference (°C)
Indoor

5.57.7

5.17.0

4.66.3

4.15.7

3.75.1

3.34.5

MUZ-FD25VA MUZ-FD25VAH

MUZ-FD35VA MUZ-FD35VAH

17.320.9

16.019.3

14.617.7

13.316.1

12.014.5

10.612.9

9.311.3

8.09.7

6.78.0

5.36.4

MUZ-FD25VA MUZ-FD25VAH

MUZ-FD35VA

MUZ-FD35VAH

Total input (Cooling : at Rated frequency)

8.5	factors	1.3
7.7		1.2									26	24	20
													22
7.0	correction	1.1											18
6.3		1.0
5.6	Input	0.9
4.9		0.8								Indoor intake air Wet-bulb
										temperature(°C)
		-10	-5	0	5	10	15	20	25	30	35	40	45

FD50VA-MUZ	Outdoor intake air Dry-bulb temperature (°C)

Heating capacity (at Rated frequency)

25.6		1.3								15
23.7		1.2						( )		20
	factor									26
21.7								te
		1.1						mperature
19.7	correction	1.0					-bulb
17.7					Indoor
		0.9					Dry
							air
15.8		0.8					ke
						inta
13.8	Capacity	0.7
11.8		0.6
9.9		0.5
7.9		0.4
MUZ-FD50VA		-20	-15	-10		-5	0	5	10	15
			Outdoor intake air Wet-bulb temperature (°C)

air Dry-bulb temperature	difference (°C)
Indoor

17.3

16.0

14.6

13.3

12.0

10.6

9.3

8.0

6.7

5.3

MUZ-FD25VA

MUZ-FD25VAH

20.9

19.3

17.7

16.1

14.5

12.9

11.3

9.7

8.0

6.4

MUZ-FD35VA

MUZ-FD35VAH

Total input (Heating : at Rated frequency)

25.6		1.3
23.7	factor	1.2							26
21.7		1.1					)		20
							(°C		15
19.7		1.0				temperature
	correction				-bulb
17.7					rDry
					ke
		0.9			ai
				inta
15.8		0.8		Indoor
13.8	Input	0.7
11.8		0.6
9.9		0.5
7.9		0.4
MUZ-FD50VA		-20	-15	-10	-5	0	5	10	15
			Outdoor intake air Wet-bulb temperature (°C)

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

16

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

MUZ-FD25VA MUZ-FD25VAH

	1.5		Correction of Cooling capacity						2.5		Correction of Cooling input						2.0	Correction of Heating capacity
factorscorrectionCapacity								factorscorrectionInput								factorscorrectionCapacity								factorscorrectionInput
	1.0								2.0								1.5
									1.5
																	1.0
	0.5								1.0
																	0.5
									0.5
	0.0
																	0.0
									0.0
	0		50		100		150(Hz)		0		50		100		150(Hz)		0		50		100		150(Hz)
	The operational frequency of compressor								The operational frequency of compressor								The operational frequency of compressor

Correction of Heating input

4

3

2

1

00

50

100

150(Hz)

The operational frequency of compressor

Capacity correction factors

MUZ-FD35VA

1.5	Correction of Cooling capacity							1.5
							factors
1.0								1.0
0.5							correction	0.5
							Input
0.00								0.00
		50		100		150(Hz)

Correction of Cooling input

Capacity correction factors

50

100

150(Hz)

2.0	Correction of Heating capacity
							factors
1.5
1.0							correction
0.5							Capacity
0.00
		50		100		150(Hz)

Correction of Heating input

3

2

1

0	50	100	150(Hz)
0

The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor

Capacity correction factors

MUZ-FD35VAH

1.5	Correction of Cooling capacity							1.5
							factors
1.0								1.0
0.5							correction	0.5
							Input
0.00								0.00
		50		100		150(Hz)

Correction of Cooling input

Capacity correction factors

50

100

150(Hz)

2.0	Correction of Heating capacity
							factors
1.5
1.0							correction
0.5							Capacity
0.00
		50		100		150(Hz)

Correction of Heating input

3

2

1

00

50

100

150(Hz)

The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor

Capacity correction factors

MUZ-FD50VA

Correction of Cooling capacity				2.0	Correction of Cooling input
1.5			factors
1.0				1.5
0.5			correction	1.0
			Input	0.5
0.00	50	100		0.0 0	50
	The operational frequency of			The operational frequency of
	compressor (Hz)				compressor (Hz)

1.5 Correction of Heating capacity

	factors	1.0
	correction
		0.5
	Capacity
100		0.00	50	100	150

The operational frequency of compressor (Hz)

Capacity correction factors

Correction of Heating input

2.0

1.5

1.0

0.5

0.0 0

50

100

150

The operational frequency of compressor (Hz)

17

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

1.Press EMERGENCY OPERATION switch to start 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 58 Hz 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

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

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

Outdoor low pressure

Dry-bulb temperature (°C)	Relative humidity (%)
20	50
25	60
30	70

MUZ-FD25VA MUZ-FD25VAH
[Gauge]	1.4						14		[Gauge]
	1.2						12
MPa
	1.0						10		kgf/cm2
	0.8						8
	0.6						6
	0.4						4
	0.215		20	25	30	35
			50	60	70
			Ambient temperature(°C)
			Ambient humidity(%)
MUZ-FD50VA
[Gauge]	1.4							14	[Gauge]
	1.2							12
MPa
	1.0							10	kgf/cm2
	0.8							8
	0.6							6
	0.4							4
	0.215		20	25	30	35
			50	60	70
			Ambient temperature(°C)

Ambient humidity(%)

MUZ-FD35VA
[Gauge]	1.4
	1.2
MPa	1.0
	0.8
	0.6
	0.4
	0.2
	15			20		25		30
				50		60		70

Ambient temperature(°C)

Ambient humidity(%)

14

12

10

8

6

4

35

kgf/cm2 [Gauge]

MUZ-FD35VAH
[Gauge]	1.4
	1.2
MPa	1.0
	0.8
	0.6
	0.4
	0.2
	15			20		25		30
				50		60		70

Ambient temperature(°C)

Ambient humidity(%)

14

12

10

8

6

4

35

kgf/cm2 [Gauge]

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/cm2 [Gauge])

18

Outdoor unit current
MUZ-FD25VA MUZ-FD25VAH										MUZ-FD35VA										MUZ-FD35VAH
(A) 2.4										(A)4.0										(A)4.0
2.2										3.5										3.5
2.0										3.0										3.0
1.8
										2.5										2.5
15		18 20		25		30 32		35(°C)		15		18 20		25		30 32		35(°C)		15		18 20		25		30 32		35(°C)
		50		60		70		(%)				50		60		70		(%)				50		60		70		(%)
		Ambient temperature(°C)										Ambient temperature(°C)										Ambient temperature(°C)
		Ambient humidity(%)										Ambient humidity(%)										Ambient humidity(%)

MUZ-FD50VA

(A)6.5

6.0

5.5

5.0

4.515	20	25	30	35
	50	60	70
	Ambient temperature (°C)
	Ambient humidity (%)

HEAT operation

Condition:
		Indoor		Outdoor
	Dry bulb temperature (°C)	20.0	2	7	15	20.0
	Wet bulb temperature (°C)	14.5	1	6	12	14.5

Operation: Test run operation (Refer to 8-3.)

Outdoor unit current
MUZ-FD25VA MUZ-FD25VAH											MUZ-FD35VA												MUZ-FD35VAH
(A) 6.0											(A) 6.0												(A) 6.0
5.5											5.5												5.5
5.0											5.0												5.0
4.5											4.5												4.5
4.0											4.0												4.0
			10		15		20		25				5		10		15		20		25				5		10		15		20		25
5											2												2
	Ambient temperature(°C)											Ambient temperature(°C)												Ambient temperature(°C)

MUZ-FD50VA

(A)8.5

8.0

7.5

7.0

6.5

6.00 2	5	10	15	20	25
Ambient temperature (°C)

19

PERFORMANCE DATA COOL operation at Rated frequency

MUZ-FD25VA MUZ-FD25VAH

CAPACITY: 2.5 kW			SHF: 0.85				INPUT: 485 W
INDOOR	INDOOR											OUTDOOR DB (°C)
				21						25								27					30
DB (°C)	WB (°C)
		Q	SHC		SHF	INPUT		Q	SHC		SHF		INPUT		Q		SHC		SHF	INPUT	Q	SHC		SHF	INPUT
21	18	2.94	1.97		0.67	388		2.81	1.88		0.67		407		2.70		1.81		0.67	427	2.60	1.74		0.67	446
21	20	3.06	1.68		0.55	407		2.94	1.62		0.55		432		2.85		1.57		0.55	441	2.75	1.51		0.55	461
22	18	2.94	2.09		0.71	388		2.81	2.00		0.71		407		2.70		1.92		0.71	427	2.60	1.85		0.71	446
22	20	3.06	1.81		0.59	407		2.94	1.73		0.59		432		2.85		1.68		0.59	441	2.75	1.62		0.59	461
22	22	3.19	1.50		0.47	422		3.08	1.45		0.47		449		3.00		1.41		0.47	461	2.88	1.35		0.47	480
23	18	2.94	2.20		0.75	388		2.81	2.11		0.75		407		2.70		2.03		0.75	427	2.60	1.95		0.75	446
23	20	3.06	1.93		0.63	407		2.94	1.85		0.63		432		2.85		1.80		0.63	441	2.75	1.73		0.63	461
23	22	3.19	1.63		0.51	422		3.08	1.57		0.51		449		3.00		1.53		0.51	461	2.88	1.47		0.51	480
24	18	2.94	2.32		0.79	388		2.81	2.22		0.79		407		2.70		2.13		0.79	427	2.60	2.05		0.79	446
24	20	3.06	2.05		0.67	407		2.94	1.97		0.67		432		2.85		1.91		0.67	441	2.75	1.84		0.67	461
24	22	3.19	1.75		0.55	422		3.08	1.69		0.55		449		3.00		1.65		0.55	461	2.88	1.58		0.55	480
24	24	3.35	1.44		0.43	441		3.23	1.39		0.43		466		3.15		1.35		0.43	480	3.05	1.31		0.43	504
25	18	2.94	2.44		0.83	388		2.81	2.33		0.83		407		2.70		2.24		0.83	427	2.60	2.16		0.83	446
25	20	3.06	2.17		0.71	407		2.94	2.09		0.71		432		2.85		2.02		0.71	441	2.75	1.95		0.71	461
25	22	3.19	1.88		0.59	422		3.08	1.81		0.59		449		3.00		1.77		0.59	461	2.88	1.70		0.59	480
25	24	3.35	1.57		0.47	441		3.23	1.52		0.47		466		3.15		1.48		0.47	480	3.05	1.43		0.47	504
26	18	2.94	2.56		0.87	388		2.81	2.45		0.87		407		2.70		2.35		0.87	427	2.60	2.26		0.87	446
26	20	3.06	2.30		0.75	407		2.94	2.20		0.75		432		2.85		2.14		0.75	441	2.75	2.06		0.75	461
26	22	3.19	2.01		0.63	422		3.08	1.94		0.63		449		3.00		1.89		0.63	461	2.88	1.81		0.63	480
26	24	3.35	1.71		0.51	441		3.23	1.64		0.51		466		3.15		1.61		0.51	480	3.05	1.56		0.51	504
26	26	3.45	1.35		0.39	466		3.35	1.31		0.39		490		3.30		1.29		0.39	504	3.20	1.25		0.39	519
27	18	2.94	2.67		0.91	388		2.81	2.56		0.91		407		2.70		2.46		0.91	427	2.60	2.37		0.91	446
27	20	3.06	2.42		0.79	407		2.94	2.32		0.79		432		2.85		2.25		0.79	441	2.75	2.17		0.79	461
27	22	3.19	2.14		0.67	422		3.08	2.06		0.67		449		3.00		2.01		0.67	461	2.88	1.93		0.67	480
27	24	3.35	1.84		0.55	441		3.23	1.77		0.55		466		3.15		1.73		0.55	480	3.05	1.68		0.55	504
27	26	3.45	1.48		0.43	466		3.35	1.44		0.43		490		3.30		1.42		0.43	504	3.20	1.38		0.43	519
28	18	2.94	2.79		0.95	388		2.81	2.67		0.95		407		2.70		2.57		0.95	427	2.60	2.47		0.95	446
28	20	3.06	2.54		0.83	407		2.94	2.44		0.83		432		2.85		2.37		0.83	441	2.75	2.28		0.83	461
28	22	3.19	2.26		0.71	422		3.08	2.18		0.71		449		3.00		2.13		0.71	461	2.88	2.04		0.71	480
28	24	3.35	1.98		0.59	441		3.23	1.90		0.59		466		3.15		1.86		0.59	480	3.05	1.80		0.59	504
28	26	3.45	1.62		0.47	466		3.35	1.57		0.47		490		3.30		1.55		0.47	504	3.20	1.50		0.47	519
29	18	2.94	2.91		0.99	388		2.81	2.78		0.99		407		2.70		2.67		0.99	427	2.60	2.57		0.99	446
29	20	3.06	2.66		0.87	407		2.94	2.56		0.87		432		2.85		2.48		0.87	441	2.75	2.39		0.87	461
29	22	3.19	2.39		0.75	422		3.08	2.31		0.75		449		3.00		2.25		0.75	461	2.88	2.16		0.75	480
29	24	3.35	2.11		0.63	441		3.23	2.03		0.63		466		3.15		1.98		0.63	480	3.05	1.92		0.63	504
29	26	3.45	1.76		0.51	466		3.35	1.71		0.51		490		3.30		1.68		0.51	504	3.20	1.63		0.51	519
30	18	2.94	2.94		1.00	388		2.81	2.81		1.00		407		2.70		2.70		1.00	427	2.60	2.60		1.00	446
30	20	3.06	2.79		0.91	407		2.94	2.67		0.91		432		2.85		2.59		0.91	441	2.75	2.50		0.91	461
30	22	3.19	2.52		0.79	422		3.08	2.43		0.79		449		3.00		2.37		0.79	461	2.88	2.27		0.79	480
30	24	3.35	2.24		0.67	441		3.23	2.16		0.67		466		3.15		2.11		0.67	480	3.05	2.04		0.67	504
30	26	3.45	1.90		0.55	466		3.35	1.84		0.55		490		3.30		1.82		0.55	504	3.20	1.76		0.55	519
31	18	2.94	2.94		1.00	388		2.81	2.81		1.00		407		2.70		2.70		1.00	427	2.60	2.60		1.00	446
31	20	3.06	2.91		0.95	407		2.94	2.79		0.95		432		2.85		2.71		0.95	441	2.75	2.61		0.95	461
31	22	3.19	2.65		0.83	422		3.08	2.55		0.83		449		3.00		2.49		0.83	461	2.88	2.39		0.83	480
31	24	3.35	2.38		0.71	441		3.23	2.29		0.71		466		3.15		2.24		0.71	480	3.05	2.17		0.71	504
31	26	3.45	2.04		0.59	466		3.35	1.98		0.59		490		3.30		1.95		0.59	504	3.20	1.89		0.59	519
32	18	2.94	2.94		1.00	388		2.81	2.81		1.00		407		2.70		2.70		1.00	427	2.60	2.60		1.00	446
32	20	3.06	3.03		0.99	407		2.94	2.91		0.99		432		2.85		2.82		0.99	441	2.75	2.72		0.99	461
32	22	3.19	2.77		0.87	422		3.08	2.68		0.87		449		3.00		2.61		0.87	461	2.88	2.50		0.87	480
32	24	3.35	2.51		0.75	441		3.23	2.42		0.75		466		3.15		2.36		0.75	480	3.05	2.29		0.75	504
32	26	3.45	2.17		0.63	466		3.35	2.11		0.63		490		3.30		2.08		0.63	504	3.20	2.02		0.63	519
NOTE	Q : Total capacity (kW)							SHF : Sensible heat factor								DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW)							INPUT : Total power input (W)									WB : Wet-bulb temperature

20