Mitsubishi MUZ-FD25VABH, MUZ-FD35VABH, MUZ-FD50VABH Service Manual
SPLIT-TYPE AIR CONDITIONERS
OUTDOOR UNIT
SERVICE MANUAL
Models
MUZ-FD25VABH MUZ-FD35VABH MUZ-FD50VABH -
E1
E1
E1
HFC
utilized
R410A
No. OBH519
MUZ-FD25/35
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. ACTUA TOR CONTROL ··································· 24
10. SERVICE FUNCTIONS ···································· 25
11. TROUBLESHOOTING ····································· 26
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 MUZ-FD35VABH MUZ-FD50VABH -
1. New model
E1
E1
E1
3
2
PART NAMES AND FUNCTIONS
MUZ-FD25VABH MUZ-FD35VABH
MUZ-FD50VABH
Air inlet
(back and side)
Piping
Drain hose
Air outlet
Drain outlet
Air inlet
(back and side)
Piping
Drain hose
Air outlet
4
3
Capacity
Rated frequency (Min.-Max.)
Breaker Capacity A 10 12 16
Electrical data
Coeffi cient of performance
(C.O.P) 1 (Total)
Compressor
Fan motor
Dimensions W × H × D mm 800 × 550 × 285 840 × 850 × 330
Weight kg 36 55
Special remarks
NOTE : Test conditions are based on ISO 5151.
Cooling : Indoor Dry-bulb temperature 27°C Wet-bulb temperature 19°C
Outdoor Dry-bulb temperature 35°C
Heating : Indoor Dry-bulb temperature 20°C
Outdoor Dry-bulb temperature 7°C Wet-bulb temperature 6°C
Refrigerant piping length (one way) : 5 m
1 Measured under rated operating frequency.
SPECIFICATION
Outdoor model MUZ-FD25VABH MUZ-FD35VABH MUZ-FD50VABH
Power supply Single phase, 230 V, 50 Hz
Cooling
Heating 3.2 (1.5-6.3) 4.0 (1.3-6.6) 6.0 (1.5-8.2)
Power input 1 (Total)
Running current 1 (Total)
Power factor
Starting current 1 (Total) A 2.9 3.9 7.1
Dehumidifi cation Cooling /h 1.4 2.0 1.7
Air fl ow 1
Sound level 1
Fan speed
Fan speed regulator 3 2
Refrigerant fi lling capacity (R410A) kg 1.15 1.55
Refrigeration oil (Model) NEO22
1 (Total)
Model SNB130FGBH SNB172FDGH
Output W 900 1,200
Current
Model RC0J50-EA RC0J60-AA
Current 1
Cooling
Heating
Cooling
Heating
Cooling
Heating 600 840 1,610
Cooling
Heating 2.9 3.9 7.1
Cooling
Heating 90 94 98
Cooling 5.15 4.19 3.31
Heating 5.33 4.76 3.73
Cooling
1
Heating 2.30 3.23 5.89
Cooling
Heating 0.30 0.35
High
Med. – 2,940
Low 1,086 1,680
High 2,016 2,940
Med. 1,776 2,940
Low 1,386 2,100
Cooling
Heating 50 56
High
Med. – 800
Low 490 480
High 870 800
Med. 770 800
Low 610 580
kW
W
A
%
A
A
3
m
/h
dB(A) 46
rpm
2.5 (1.1-3.5) 3.5 (0.8-4.0) 5.0 (1.5-5.8)
485 835 1,510
2.4 3.8 6.7
88 96 98
1.88 3.21 5.45
0.27 0.32
1,872 –
47 54
810 –
0.72
5
Specifi cations and rating conditions of main electric parts
Item
Current transformer
Smoothing capacitor (C61, C62, C63) 620 F 420 V
Diode module
Fuse
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
Current-limiting PTC thermistor (PTC64, PTC65) 33
Terminal block (TB1, TB2) 3 P
Relay
R.V.coil (21S4) AC 220 - 240 V
Heater protector (26H) Open 45°C
IGBT (TR821) 30 A 600 V
(CT761, CT781) 15 A
(F701, F801, F901) T3.15AL250V
(R937, R938, R939) 430 m 2 W
Model
(CT) 20 A
(DB61) 15 A 600 V
(DB65) 25 A 600 V
(F61) T20AL250V
(R61, R62) 180 m 5 W (2 elements)
(R825) 25 m 5 W
(X63) 3 A 250 V
(X64) 20 A 250 V
(X66) 3 A 250 V
MUZ-FD25VABH MUZ-FD35VABH
Model
Item
Current transformer
Smoothing capacitor (CB1, CB2, CB3) 560 F 450 V
Fuse
Defrost heater (H) 230 V 130 W
Expansion valve coil (LEV) DC 12 V
Intelligent power module
High pressure switch (HPS) ACB-DB156
Reactor (L) 600 H 20 A
Power factor correct module (PFC) 20 A 600 V
Current-detecting resistor (PTC64, PTC65) 33
Current-limiting PTC thermistor
Solenoid coil relay (SSR61) 0.5 A 600 V
Terminal block (TB1, TB2) 3 P
Relay
R.V. coil (21S4) AC 220 - 240 V
Heater protector (26H) Open 45°C
(RS1, RS2, RS3, RS4)
(CT1, CT2) 20 A
(CT61) 20 A
(F64) T2.0AL250V
(F71, F801) T3.15AL250V
(IPM) 15 A 600 V
(HC930) 3 A 600 V
(R937A, R937B) 1.1 2 W
(X64) 20 A 250 V
(X71) 3A 250 V
MUZ-FD50VABH
40 m 7 W (2 elements)
66
4
NOISE CRITERIA CURVES
MUZ-FD25VABH
FUNCTION
COOLING
HEATING
90
80
70
60
50
40
30
20
OCTAVE BAND SOUND PRESSURE LEVEL, 0dB re 0.0002 MICRO BAR
10
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
SPL(dB(A)) LINE
46
NC-10
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
MUZ-FD35VABH
FUNCTION
COOLING
HEATING
90
80
70
60
50
40
30
20
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
10
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
SPL(dB(A))
47
50
NC-10
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
MUZ-FD50VABH
FUNCTION
COOLING
HEATING
90
80
70
60
50
40
30
20
OCTAVE BAND SOUND PRESSURE LEVEL, 0dB re 0.0002 MICRO BAR
10
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
SPL(dB(A)) LINE
54
56
NC-10
Test conditions
Cooling : Dry-bulb temperature 35 °C
Heating : Dry-bulb temperature 7 °C Wet-bulb temperature 6 °C
OUTDOOR UNIT
1 m
MICROPHONE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
7
5
OUTLINES AND DIMENSIONS
MUZ-FD25VABH MUZ-FD35VABH
344.5
285
550
44
Air in
2 holes 10 × 21
22.3
Handle
280
10
400
Air in
Air out
150
302.5
500 Bolt pitch for installation
Drain hole ø33
40
800
69
17.5
Bolt pitch for
23
164.5
99.5
REQUIRED SPACE
100 mm or more
304-325
installation
Service panel
Liquid refrigerant pipe joint
Refrigerant pipe (flared) ø6.35
170.5
Service port
200 mm or more
Open two sides of left,
right, or rear side.
43°
35°
Gas refrigerant pipe joint
Refrigerant pipe (flared) ø9.52
Unit : mm
Basically open 100 mm or more
without any obstruction in front
and on both sides of the unit.
100 mm or more
350 mm or more
MUZ-FD50VABH
Air in
330
170
850
430
Air in
Air out
121
500
840
40
4 holes 10 × 21
80
REQUIRED SPACE
100 mm or more
360
Open as a rule
500 mm or more if the back,
both sides and top are open
155
90
Open as a rule
500 mm or more if
the front and both
sides are open
198
350 mm or more
Service panel
Liquid refrigerant
pipe joint
Refrigerant pipe
ø6.35
(flared)
30°
35°
Gas refrigerant
pipe joint
Refrigerant pipe
(flared)
ø12.7
100 mm or more
200 mm or more if
there are obstacles
to both sides
8
6
MUZ-FD25VABH
MUZ-FD35VABH
WIRING DIAGRAM
9
MUZ-FD50VABH
10
7
REFRIGERANT SYSTEM DIAGRAM
MUZ-FD25VABH MUZ-FD35VABH
Refrigerant pipe ø9.52
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø6.35
(with heat insulator)
Muffler
Stop valve
(with service port)
Capillary tube
ø
3.0×ø2.0×240
Stop valve
(with strainar)
4-way valve
Discharge
temperature
thermistor
RT62
LEV
Muffler
Compressor
Defrost
thermistor
RT61
Capillary tube
ø
3.0×ø1.8×600(×2)
Outdoor heat
exchanger
temperature
Outdoor
heat
exchanger
Refrigerant flow in cooling
Refrigerant flow in heating
thermistor
RT68
Ambient
temperature
thermistor
RT65
Strainer
#100
R.V. coil
heating ON
cooling OFF
Unit : mm
MUZ-FD50VABH
Refrigerant pipe
(with heat insulator)
ø
12.7
Flared connection
Flared connection
Refrigerant pipe ø6.35
(with heat insulator)
4-way valve
Stop valve
(with service port)
Receiver
Stop valve
Strainer
#100
Capillary tube
ø
3.6
Muffler
#100
Discharge
temperature
thermistor
RT62
Compressor
×
ø
2.4×50
LEV
High-pressure
switch
Defrost
thermistor
RT61
Strainer
#100
Refrigerant flow in cooling
Refrigerant flow in heating
Outdoor
heat
exchanger
Outdoor heat
exchanger
temperature
thermistor
RT68
R.V. coil
heating ON
cooling OFF
Unit : mm
Ambient
temperature
thermistor
RT65
11
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Refrigerant piping : m
MUZ-FD25
MUZ-FD35
Max. Length
A
20 12 9.52
Max. Height difference
B
MUZ-FD50 30 15 12.7
Indoor
unit
Max. Height
difference
B
Max. Length
A
Outdoor unit
Piping size O.D : mm
Gas Liquid
ADDITIONAL REFRIGERANT CHARGE (R410A : g)
Model
MUZ-FD25
MUZ-FD35
Outdoor unit
precharged
1,150
5 m 6 m 7 m 8 m 9 m 10 m 11 m 12 m 13 m 14 m 15 m 20 m
0 0 0 90 120 150 180 210 240 270 300 450
Refrigerant piping length (one way)
6.35
Calculation : X g = 30 g/m × (Refrigerant piping length (m) - 5)
Model
Outdoor unit
precharged
7 m 10 m 15 m 20 m 25 m 30 m
Refrigerant piping length (one way)
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
PERFORMANCE CURVES8
MUZ-FD25VABH MUZ-FD35VABH MUZ-FD50VABH
The standard specifications apply only to the operation of the air conditioner under normal conditions. Since operating condi-
tions 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]
(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]
(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.
}
}
Cooling
Heating
INDOOR UNIT OUTDOOR UNIT
Wet and dry-bulb
thermometers
8-1. CAPACITY AND INPUT CURVES
6.5
6.0
5.5
5.1
4.6
difference (°C)
4.1
3.7
Indoor air Wet-bulb temperature
9.1
8.4
7.7
7.0
6.3
5.7
5.1
10.1
9.3
8.5
7.7
7.0
6.3
5.6
1.5
1.4
1.3
1.2
1.1
1.0
Capacity correction factors
0.9
-10-5 0 5 1015202530354045
Cooling capacity (
Outdoor intake air Dry-bulb temperature(°C)
Wet and dry-bulb
thermometers
at Rated frequency)
Indoor intake air Wet-bulb
temperature( )
26
24
22
20
18
MUZ-FD25VABH
MUZ-FD35VABH
MUZ-FD50VABH
13
5.5
5.1
4.6
4.1
difference (°C)
3.7
3.3
Indoor air Wet-bulb temperature
7.7
7.0
6.3
5.7
5.1
4.5
8.5
7.7
7.0
6.3
5.6
4.9
1.3
1.2
1.1
1.0
0.9
Input correction factors
0.8
Total input (Cooling :
at Rated frequency
)
22
26
24
20
18
Indoor intake air Wet-bulb
temperature(°C)
-10-5 0 5 1015202530354045
Outdoor intake air Dry-bulb temperature (°C)
MUZ-FD25VABH
20.9
19.3
17.7
16.1
14.5
12.9
11.3
20.9
19.3
17.7
16.1
14.5
12.9
11.3
9.7
8.0
6.4
MUZ-FD35VABH
9.7
8.0
6.4
MUZ-FD35VABH
26.9
24.8
22.7
20.7
18.6
16.5
14.5
12.4
10.3
MUZ-FD25VABH
17.3
16.0
14.6
13.3
12.0
10.6
9.3
8.0
difference (°C)
6.7
5.3
Indoor air Dry-bulb temperature
17.3
16.0
14.6
13.3
12.0
10.6
9.3
8.0
difference (°C)
6.7
5.3
Indoor air Dry-bulb temperature
MUZ-FD50VABH
26.9
24.8
22.7
20.7
18.6
16.5
14.5
12.4
10.3
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
Capacity correction factor
8.3
0.4
-20 -15 -10 -5 0 5 10 15
MUZ-FD50VABH
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
Input correction factor
0.5
8.3
0.4
-20 -15 -10 -5 0 5 10 15
Heating capacity (
Indoor intake air Dry-bulb temperature ( )
at Rated frequency)
Outdoor intake air Wet-bulb temperature (°C)
Total input (Heating :
Indoor intake air Dry-bulb temperature (
at Rated frequency
)
Outdoor intake air Wet-bulb temperature (°C)
15
20
26
26
)
°C
20
15
MUZ-FD25VABH
MUZ-FD35VABH
MUZ-FD50VABH
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
Correction of Cooling capacity
1.5
1.0
0.5
Capacity correction factors
0.0
0 50 100 150(Hz)
The operational frequency of compressor
MUZ-FD35VABH
Correction of Cooling capacity
1.5
1.0
0.5
Capacity correction factors
0.0
0 50 100 150(Hz)
The operational frequency of compressor
Correction of Cooling input
2.5
2.0
1.5
1.0
0.5
Input correction factors
0.0
0 50 100 150(Hz)
The operational frequency of compressor
Correction of Cooling input
1.5
1.0
0.5
Input correction factors
0.0
0 50 100 150(Hz)
The operational frequency of compressor
Correction of Heating capacity
2.0
1.5
1.0
0.5
Capacity correction factors
0.0
0 50 100 150(Hz)
The operational frequency of compressor
Correction of Heating capacity
2.0
1.5
1.0
0.5
Capacity correction factors
0.0
0 50 100 150(Hz)
The operational frequency of compressor
Correction of Heating input
4
3
2
1
Input correction factors
0
0 50 100 150(Hz)
The operational frequency of compressor
Correction of Heating input
3
2
1
Capacity correction factors
0
0 50 100 150(Hz)
The operational frequency of compressor
MUZ-FD50VABH
Correction of Cooling capacity
1.5
1.0
0.5
Capacity correction factors
0.0
0 50 100
The operational frequency of
compressor (Hz)
Correction of Cooling input
2.0
1.5
1.0
0.5
Input correction factors
0.0
0 50 100
The operational frequency of
compressor (Hz)
Correction of Heating capacity
1.5
1.0
0.5
Capacity correction factors
0.0
0 50 100 150
The operational frequency of
compressor (Hz)
Correction of Heating input
2.0
1.5
1.0
0.5
Capacity correction factors
0.0
050100150
The operational frequency of
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
Both indoor and outdoor unit are under the same temperature/
humidity condition.
Operation : TEST RUN OPERATION (Refer to 8-3.)
Dry-bulb temperature (°C) Relative humidity (%)
Outdoor low pressure
20 50
25 60
30 70
MUZ-FD25VABH
1.4
1.2
1.0
MPa [Gauge]
0.8
0.6
0.4
0.2
15 20 25 30 35
50 60 70
Ambient temperature(°C)
Ambient humidity(%)
14
12
10
8
6
4
[Gauge]
2
kgf/cm
MUZ-FD35VABH
1.4
1.2
1.0
MPa [Gauge]
0.8
0.6
0.4
0.2
15 20 25 30 35
50 60 70
Ambient temperature(°C)
Ambient humidity(%)
14
12
10
8
6
4
[Gauge]
2
kgf/cm
MUZ-FD50VABH
1.4
1.2
1.0
MPa [Gauge]
0.8
0.6
0.4
0.2
15 20 25 30 35
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/cm
2
[Gauge])
Outdoor unit current
MUZ-FD25VABH
(A) (A)
2.4
2.2
2.0
MUZ-FD35VABH
4.0
3.5
3.0
MUZ-FD50VABH
(A)
6.5
6.0
5.5
5.0
50 60 70
Ambient temperature(°C)
Ambient humidity(%)
14
12
10
8
6
4
[Gauge]
2
kgf/cm
1.8
15 205025
18
Ambient temperature (°C)
Ambient humidity (%)
307035
60
2.5
15 205025
18
Ambient temperature (°C)
Ambient humidity (%)
HEAT operation
Condition :
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
6.0
(A) (A)
5.5
5.0
4.5
4.0
510152025
Ambient temperature (°C)
Indoor Outdoor
6.0
5.5
5.0
4.5
4.0
2
510152025
Ambient temperature (°C)
4.5
35
30
70
60
15 20 25 30 35
50 60 70
Ambient temperature (°C)
Ambient humidity (%)
MUZ-FD50VABH
8.5
(A)
8.0
7.5
7.0
6.5
6.0
02 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
DB (°C)
INDOOR
WB (°C)
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
Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
21 25 27 30
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
OUTDOOR DB (°C)
17
PERFORMANCE DATA COOL operation at Rated frequency
MUZ-FD25VABH
CAPACITY : 2.5 kW SHF : 0.85 INPUT : 485 W
INDOOR
DB (°C)
INDOOR
WB (°C)
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
Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
35 40 46
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
OUTDOOR DB (°C)
18
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