Mitsubishi MUZ-FD25VABH, MUZ-FD35VABH, MUZ-FD50VABH Service Manual

SPLIT-TYPE AIR CONDITIONERS

OUTDOOR UNIT

SERVICE MANUAL

HFC	No. OBH519
utilized
R410A

Models

MUZ-FD25VABH - E1

MUZ-FD35VABH - E1

MUZ-FD50VABH - 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 ······························ 7
	5. OUTLINES AND DIMENSIONS ························ 8
	6.	WIRING DIAGRAM············································ 9
	7. REFRIGERANT SYSTEM DIAGRAM ··············11
	8. PERFORMANCE CURVES ····························· 13
	9. ACTUATOR CONTROL··································· 24
	10. SERVICE FUNCTIONS···································· 25
	11. TROUBLESHOOTING ····································· 26
MUZ-FD25/35	12. DISASSEMBLY INSTRUCTIONS···················· 53

PARTS CATALOG (OBB519)

NOTE:

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

2

1 TECHNICAL CHANGES

MUZ-FD25VABH - E1 MUZ-FD35VABH - E1 MUZ-FD50VABH - E1

1. New model

3

2 PART NAMES AND FUNCTIONS

MUZ-FD25VABH MUZ-FD35VABH

Air inlet (back and side)

Piping

Drain hose

Air outlet

Drain outlet

MUZ-FD50VABH

Air inlet (back and side)

Piping

Drain hose

Air outlet

4

3			SPECIFICATION
					Outdoor model							MUZ-FD25VABH		MUZ-FD35VABH			MUZ-FD50VABH
					Power supply									Single phase, 230 V, 50 Hz
Capacity									Cooling	kW		2.5 (1.1-3.5)		3.5 (0.8-4.0)			5.0 (1.5-5.8)
Rated frequency (Min.-Max.)									Heating			3.2 (1.5-6.3)		4.0 (1.3-6.6)			6.0 (1.5-8.2)
Breaker Capacity										A		10			12		16
data	Power input				1 (Total)				Cooling	W		485			835		1,510
									Heating			600			840		1,610
	Running current					1 (Total)			Cooling	A		2.4			3.8		6.7
Electrical
									Heating			90			94		98
	Power factor				1 (Total)					%
									Heating			2.9			3.9		7.1
									Cooling			88			96		98
	Starting current					1 (Total)				A		2.9			3.9		7.1
Coefficient of performance									Cooling			5.15			4.19		3.31
(C.O.P) 1 (Total)									Heating			5.33			4.76		3.73
				Model								SNB130FGBH					SNB172FDGH
Compressor				Output						W			900				1,200
				Current			1		Cooling	A		1.88			3.21		5.45
									Heating			2.30			3.23		5.89
Fan motor				Model								RC0J50-EA					RC0J60-AA
				Current			1		Cooling	A		0.27			0.32		0.72
									Heating			0.30			0.35
Dimensions W ×				H × D						mm		800 × 550 × 285					840 × 850 × 330
Weight										kg			36				55
	Dehumidification								Cooling	/h		1.4			2.0		1.7
					Cooling				High				1,872				–
									Med.				–				2,940
	Air flow 1								Low	m3/h			1,086				1,680
					Heating				High				2,016				2,940
									Med.				1,776				2,940
remarks									Low				1,386				2,100
	Sound level				1				Heating	dB(A)		46			50		56
									Cooling						47		54
Special
									High				810				–
					Cooling				Med.				–				800
	Fan speed								Low	rpm			490				480
					Heating				High				870				800
									Med.				770				800
									Low				610				580
	Fan speed			regulator									3				2
	Refrigerant filling capacity (R410A)									kg			1.15				1.55
	Refrigeration oil (Model)														NEO22
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

Specifications and rating conditions of main electric parts

Item	Model	MUZ-FD25VABH		MUZ-FD35VABH
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
Intelligent power module	(IPM)		20 A 600 V
Expansion valve coil	(LEV)		DC 12 V
Reactor	(L61)		23.0 mH
Current-detecting resistor	(R61, R62)	180 mΩ 5 W (2 elements)
	(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
Relay	(X63)		3 A 250 V
	(X64)		20 A 250 V
	(X66)		3 A 250 V
R.V.coil	(21S4)		AC 220 - 240 V
Heater protector	(26H)		Open 45°C
IGBT	(TR821)		30 A 600 V
	Model		MUZ-FD50VABH
Item
Current transformer	(CT1, CT2)		20 A
	(CT61)		20 A
Smoothing capacitor	(CB1, CB2, CB3)		560 μF 450 V
Fuse	(F64)		T2.0AL250V
	(F71, F801)		T3.15AL250V
Defrost heater	(H)		230 V 130 W
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-detecting resistor	(PTC64, PTC65)		33 Ω
Current-limiting PTC thermistor	(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
	(X71)		3A 250 V
R.V. coil	(21S4)		AC 220 - 240 V
Heater protector	(26H)		Open 45°C

6

4 NOISE CRITERIA CURVES

MUZ-FD25VABH

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-FD35VABH

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

Test conditions

Cooling : Dry-bulb temperature 35 °C

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

MUZ-FD50VABH								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

7

5 OUTLINES AND DIMENSIONS

MUZ-FD25VABH MUZ-FD35VABH

Unit : mm

344.5

285

550

		REQUIRED SPACE			Basically open 100 mm or more
					without any obstruction in front
					and on both sides of the unit.
					more
					or
					mm
400		100	mm		100
	Drain hole ø33			or
Air in
				more

44 Air in

2 holes 10 × 21

Air out

22.3

Handle

280 10

150

302.5

500 Bolt pitch for installation

800

Bolt pitch for installation 304-325

40	17.5

23

ormore mm 200

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

Service panel

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

350	mm
	or
	more

MUZ-FD50VABH

Air in

330	Air in

170 Air out 500

840

121

850

430

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

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

8

6 WIRING DIAGRAM

MUZ-FD25VABH

MUZ-FD35VABH

9

MUZ-FD50VABH

10

7 REFRIGERANT SYSTEM DIAGRAM

MUZ-FD25VABH MUZ-FD35VABH

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-FD50VABH

Unit : mm

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

11

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	6.35
	MUZ-FD35
	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.

12

8 PERFORMANCE CURVES

MUZ-FD25VABH MUZ-FD35VABH MUZ-FD50VABH

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]	} Heating
	(6)	Outdoor intake air wet-bulb temperature :	°C [WB]
	(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

8-1. CAPACITY AND INPUT CURVES

air Wet-bulb temperature	difference (°C)
Indoor

6.5	9.1	10.1		1.5			Cooling capacity (at Rated frequency)
6.0	8.4	9.3	factors	1.4								Indoor intake air Wet-bulb
												temperature(		)
5.5	7.7	8.5	correction	1.3
5.1	7.0	7.7		1.2										26
4.6	6.3	7.0	Capacity	1.1										24
4.1	5.7	6.3		1.0
3.7	5.1	5.6		0.9											22
															20
FD25VABH-MUZ	FD35VABH-MUZ	FD50VABH-MUZ													18
				-10	-5	0	5	10	15	20	25	30	35	40	45
						Outdoor intake air Dry-bulb temperature(°C)

13

air Wet-bulb temperature	difference (°C)
Indoor

5.57.7

5.17.0

4.66.3

4.15.7

3.75.1

3.34.5

MUZ-FD25VABH

MUZ-FD35VABH

8.5				factors
7.7
7.0				correction
6.3
5.6				Input
4.9
MUZ-FD50VABH

Total input (Cooling : at Rated frequency)

1.3
1.2									26	24	22
											20
1.1
											18
1.0
0.9
0.8								Indoor intake air Wet-bulb
								temperature(°C)
-10	-5	0	5	10	15	20	25	30	35	40	45

Outdoor intake air Dry-bulb temperature (°C)

air Dry-bulb temperature	difference (°C)
Indoor

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-FD25VABH

MUZ-FD35VABH

26.9				Heating capacity (at Rated frequency)						15
		1.3
24.8		1.2						( )		20
	factor									26
22.7								te
		1.1						mperature
20.7	correction	1.0					-bulb
18.6					Indoor
		0.9					rDry
							ai
16.5		0.8				intake
14.5	Capacity	0.7
12.4		0.6
10.3		0.5
8.3		0.4
FD50VABH-MUZ		-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-FD25VABH

20.9

19.3

17.7

16.1

14.5

12.9

11.3

9.7

8.0

6.4

MUZ-FD35VABH

Total input (Heating : at Rated frequency)

26.9		1.3
24.8	factor	1.2								26
22.7		1.1						)		20
								(°C		15
20.7		1.0					temperature
	correction					-bulb
18.6		0.9		intake	air	Dry
16.5		0.8		Indoor
14.5	Input	0.7
12.4		0.6
10.3		0.5
8.3		0.4
FD50VABH-MUZ		-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.

14

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

MUZ-FD25VABH

Capacity correction factors

Correction of Cooling capacity

1.5

1.0					factors
					correction
0.5
					Input
0.0
		50	100	150(Hz)
0

2.5

2.0

1.5

1.0

0.5

0.0

0

Correction of Cooling input

Capacity correction factors

50

100

150(Hz)

Correction of Heating capacity

2.0

1.5					factors
1.0					correction
					Input
0.5
0.00		50	100	150(Hz)

Correction of Heating input

4

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-FD35VABH

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-FD50VABH

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				2.0		Correction of Heating input
	factors	1.0					factors1.5
	correction						correction
							1.0
	Capacity	0.5					Capacity
							0.5
100		0.00		50	100	150	0.0	0	50	100	150
				The operational frequency of				The operational frequency of
				compressor (Hz)					compressor (Hz)

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.

15

8-4. OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

COOL operation
	Dry-bulb temperature (°C)	Relative humidity (%)
Both indoor and outdoor unit are under the same temperature/	20	50
humidity condition.	25	60
Operation : TEST RUN OPERATION (Refer to 8-3.)	30	70

Outdoor low pressure

MUZ-FD25VABH
[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-FD35VABH
[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-FD50VABH
[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])

Outdoor unit current
MUZ-FD25VABH										MUZ-FD35VABH										MUZ-FD50VABH
(A) 2.4										(A)4.0										(A)6.5
2.2										3.5										6.0
																				5.5
2.0										3.0
																				5.0
1.8
										2.5
																				4.5
15		18 20		25		30		35				18 20		25		30		35				20		25		30		35
										15										15
		50		60		70						50		60		70						50		60		70
		Ambient temperature (°C)										Ambient temperature (°C)										Ambient temperature (°C)
		Ambient humidity (%)										Ambient humidity (%)										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-FD25VABH											MUZ-FD35VABH
(A) 6.0											(A) 6.0
5.5											5.5
5.0											5.0
4.5											4.5
4.0											4.0
			10		15		20		25				5		10		15		20		25
5											2
	Ambient temperature (°C)											Ambient temperature (°C)

MUZ-FD50VABH

(A)8.5

8.0

7.5

7.0

6.5

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

16

PERFORMANCE DATA COOL operation at Rated frequency

MUZ-FD25VABH

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

17

PERFORMANCE DATA COOL operation at Rated frequency

MUZ-FD25VABH

CAPACITY : 2.5 kW			SHF : 0.85					INPUT : 485 W
INDOOR	INDOOR								OUTDOOR DB (°C)
				35							40							46
DB (°C)	WB (°C)
		Q	SHC		SHF		INPUT		Q	SHC		SHF	INPUT		Q		SHC		SHF	INPUT
21	18	2.45	1.64		0.67		475		2.25	1.51		0.67	504		2.08		1.39		0.67	524
21	20	2.58	1.42		0.55		495		2.40	1.32		0.55	519		2.23		1.22		0.55	548
22	18	2.45	1.74		0.71		475		2.25	1.60		0.71	504		2.08		1.47		0.71	524
22	20	2.58	1.52		0.59		495		2.40	1.42		0.59	519		2.23		1.31		0.59	548
22	22	2.73	1.28		0.47		514		2.55	1.20		0.47	543		2.38		1.12		0.47	563
23	18	2.45	1.84		0.75		475		2.25	1.69		0.75	504		2.08		1.56		0.75	524
23	20	2.58	1.62		0.63		495		2.40	1.51		0.63	519		2.23		1.40		0.63	548
23	22	2.73	1.39		0.51		514		2.55	1.30		0.51	543		2.38		1.21		0.51	563
24	18	2.45	1.94		0.79		475		2.25	1.78		0.79	504		2.08		1.64		0.79	524
24	20	2.58	1.73		0.67		495		2.40	1.61		0.67	519		2.23		1.49		0.67	548
24	22	2.73	1.50		0.55		514		2.55	1.40		0.55	543		2.38		1.31		0.55	563
24	24	2.88	1.24		0.43		534		2.70	1.16		0.43	558		2.55		1.10		0.43	582
25	18	2.45	2.03		0.83		475		2.25	1.87		0.83	504		2.08		1.72		0.83	524
25	20	2.58	1.83		0.71		495		2.40	1.70		0.71	519		2.23		1.58		0.71	548
25	22	2.73	1.61		0.59		514		2.55	1.50		0.59	543		2.38		1.40		0.59	563
25	24	2.88	1.35		0.47		534		2.70	1.27		0.47	558		2.55		1.20		0.47	582
26	18	2.45	2.13		0.87		475		2.25	1.96		0.87	504		2.08		1.81		0.87	524
26	20	2.58	1.93		0.75		495		2.40	1.80		0.75	519		2.23		1.67		0.75	548
26	22	2.73	1.72		0.63		514		2.55	1.61		0.63	543		2.38		1.50		0.63	563
26	24	2.88	1.47		0.51		534		2.70	1.38		0.51	558		2.55		1.30		0.51	582
26	26	3.03	1.18		0.39		553		2.85	1.11		0.39	577		2.68		1.04		0.39	601
27	18	2.45	2.23		0.91		475		2.25	2.05		0.91	504		2.08		1.89		0.91	524
27	20	2.58	2.03		0.79		495		2.40	1.90		0.79	519		2.23		1.76		0.79	548
27	22	2.73	1.83		0.67		514		2.55	1.71		0.67	543		2.38		1.59		0.67	563
27	24	2.88	1.58		0.55		534		2.70	1.49		0.55	558		2.55		1.40		0.55	582
27	26	3.03	1.30		0.43		553		2.85	1.23		0.43	577		2.68		1.15		0.43	601
28	18	2.45	2.33		0.95		475		2.25	2.14		0.95	504		2.08		1.97		0.95	524
28	20	2.58	2.14		0.83		495		2.40	1.99		0.83	519		2.23		1.85		0.83	548
28	22	2.73	1.93		0.71		514		2.55	1.81		0.71	543		2.38		1.69		0.71	563
28	24	2.88	1.70		0.59		534		2.70	1.59		0.59	558		2.55		1.50		0.59	582
28	26	3.03	1.42		0.47		553		2.85	1.34		0.47	577		2.68		1.26		0.47	601
29	18	2.45	2.43		0.99		475		2.25	2.23		0.99	504		2.08		2.05		0.99	524
29	20	2.58	2.24		0.87		495		2.40	2.09		0.87	519		2.23		1.94		0.87	548
29	22	2.73	2.04		0.75		514		2.55	1.91		0.75	543		2.38		1.78		0.75	563
29	24	2.88	1.81		0.63		534		2.70	1.70		0.63	558		2.55		1.61		0.63	582
29	26	3.03	1.54		0.51		553		2.85	1.45		0.51	577		2.68		1.36		0.51	601
30	18	2.45	2.45		1.00		475		2.25	2.25		1.00	504		2.08		2.08		1.00	524
30	20	2.58	2.34		0.91		495		2.40	2.18		0.91	519		2.23		2.02		0.91	548
30	22	2.73	2.15		0.79		514		2.55	2.01		0.79	543		2.38		1.88		0.79	563
30	24	2.88	1.93		0.67		534		2.70	1.81		0.67	558		2.55		1.71		0.67	582
30	26	3.03	1.66		0.55		553		2.85	1.57		0.55	577		2.68		1.47		0.55	601
31	18	2.45	2.45		1.00		475		2.25	2.25		1.00	504		2.08		2.08		1.00	524
31	20	2.58	2.45		0.95		495		2.40	2.28		0.95	519		2.23		2.11		0.95	548
31	22	2.73	2.26		0.83		514		2.55	2.12		0.83	543		2.38		1.97		0.83	563
31	24	2.88	2.04		0.71		534		2.70	1.92		0.71	558		2.55		1.81		0.71	582
31	26	3.03	1.78		0.59		553		2.85	1.68		0.59	577		2.68		1.58		0.59	601
32	18	2.45	2.45		1.00		475		2.25	2.25		1.00	504		2.08		2.08		1.00	524
32	20	2.58	2.55		0.99		495		2.40	2.38		0.99	519		2.23		2.20		0.99	548
32	22	2.73	2.37		0.87		514		2.55	2.22		0.87	543		2.38		2.07		0.87	563
32	24	2.88	2.16		0.75		534		2.70	2.03		0.75	558		2.55		1.91		0.75	582
32	26	3.03	1.91		0.63		553		2.85	1.80		0.63	577		2.68		1.69		0.63	601
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

18