Mitsubishi MUZ-FD25VA-E1, MUZ-FD25VAH-E1, MUZ-FD35VA-E1, MUZ-FD35VAH-E1, MUZ-FD50VA-E1 Service Manual
SPLIT-TYPE AIR CONDITIONERS
OUTDOOR UNIT
Revision B:
• MUZ-FD50VA- E1 has been added.
Please void OBH489 REVISED EDITION-A.
SERVICE MANUAL
Models
MUZ-FD25VA MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH MUZ-FD50VA -
E1
E1,E2
E1
E1
E1
HFC
utilized
R410A
No. OBH489
REVISED EDITION-B
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 ······························ 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
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 MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH MUZ-FD50VA -
1. New model
MUZ-FD25VAH -
1. Power outlet
E1
E1
E1
E1
E1
E1
E1
:
12 A,
→
MUZ-FD25VAH -
E2
: 10 A
E2
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
Capacity
Rated frequency (Min.-Max.)
Breaker Capacity A 10
Electrical data
Coeffi cient of performance
(COP)
Compressor
Fan motor
Dimensions W × H × D mm 800 × 550 × 285
Weight kg 36
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
SPECIFICATION
Outdoor model MUZ-FD25VA MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH
Power supply Single phase, 230 V, 50 Hz
Cooling
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)
Power input 1 (Total)
Running current 1 (Total)
Power factor 1 (Total)
Starting current 1 (Total) A 2.9 4.0 3.9
1 (Total)
Model SNB130FGBH
Output W 900
Current 1
Refrigeration oil (Model) cc 450 (NEO22)
Model RC0J50-EA
Current
Dehumidifi cation Cooling /h 1.4 2.0
Cooling
Air fl ow 1
Heating
Sound level 1
Cooling
Fan speed
Heating
Fan speed regulator 3
Refrigerant fi lling capacity (R410A) kg 1.15
1 Measured under rated operating frequency.
Cooling
Heating 610 865 850
Cooling
Heating 2.9 4.0 3.9
Cooling
Heating 91 94 95
Cooling 5.15 4.12 4.19
Heating 5.25 4.62 4.71
Cooling
Heating 2.30 3.33 3.23
Cooling
1
Heating 0.30 0.35
High
Low 1,086
High 2,016
Med. 1,776
Low 1,386
Cooling
Heating 50
High
Low 490
High 870
Med. 770
Low 610
kW
W
A
%
A
A
3
/h
m
dB(A) 46
rpm
2.5 (1.1-3.5) 3.5 (1.1-4.0) 3.5 (0.8-4.0)
E1
: 12
E2
: 10
485 850 835
2.4 3.9 3.8
88 95 96
1.88 3.31 3.21
0.27 0.32
1,872
810
10 12
47
5
Outdoor model MUZ-FD50VA
Power supply Single phase, 230 V, 50 Hz
Capacity
Rated frequency (Min.-Max.)
Cooling
Heating 5.8 (1.5-7.8)
kW
5.0 (1.5-5.8)
Breaker Capacity A 16
Power input 1 (Total)
Running current
Power factor 1 (Total)
Electrical data
1 (Total)
Cooling
Heating 1,550
Cooling
Heating 6.9
Cooling
Heating 98
W
A
%
1,500
6.7
98
Starting current 1 (Total) A 6.9
Coeffi cient of performance
(COP) 1 (Total)
Cooling 3.33
Heating 3.74
Model SNB172FDGH
Output W 1,200
Compressor
Current
Cooling
1
Heating 5.62
A
5.40
Refrigeration oil (Model) cc 450 (NEO22)
Model RC0J60-AA
Fan motor
Current 1
Cooling
Heating
A 0.72
Dimensions W × H × D mm 840 × 850 × 330
Weight kg 55
Dehumidifi cation Cooling /h 1.7
Air fl ow 1
Cooling
Heating
High
Med. 2,940
Low 1,680
High 2,940
3
m
/h
Med. 2,940
–
Low 2,100
Sound level 1
Special remarks
Fan speed
Cooling
Heating
Cooling
Heating 56
dB(A)
High
Med. 800
Low 480
High 800
rpm
Med. 800
54
–
Low 580
Fan speed regulator 2
Refrigerant fi lling capacity (R410A) kg 1.55
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.
6
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 — 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 — 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
(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 — 3 A 250 V
MUZ-FD25VA MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH
(CT) 20 A
Model
Item
Current transformer
Smoothing capacitor (CB1, CB2, CB3) 560 F 450 V
Fuse
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-limiting PTC thermistor (PTC64, PTC65) 33
Current-detecting resistor
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
(RS1, RS2, RS3, RS4)
(CT1, CT2) 20 A
(CT61) 20 A
(F64) T2.0AL250V
(F801) T3.15AL250V
(IPM) 15 A 600 V
(HC930) 3 A 600 V
(R937A, R937B) 1.1 2 W
MUZ-FD50VA
40 m 7 W (2 elements)
7
4
NOISE CRITERIA CURVES
MUZ-FD25VA MUZ-FD25VAH
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-FD35VA MUZ-FD35VAH
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-FD50VA
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
8
5
OUTLINES AND DIMENSIONS
MUZ-FD25VA MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH
REQUIRED SPACE
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
800
Drain hole ø42 (25/35VA)
Drain hole ø33 (25/35VAH)
40
17.5
69
Bolt pitch for
23
164.5
99.5
304-325
installation
Service port
100 mm or more
Open two sides of left,
right, or rear side.
Service panel
Liquid refrigerant pipe joint
Refrigerant pipe (flared) ø6.35
35°
Gas refrigerant pipe joint
Refrigerant pipe (flared) ø9.52
170.5
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
200 mm or more
43°
MUZ-FD50VA
299
66
51
34
Air in
330
170
850
515
Air in
Air out
121
500
840
Drain holes ø33
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
Open as a rule
500 mm or more if
the front and both
sides are open
100 mm or more
200 mm or more if
there are obstacles
to both sides
350 mm or more
Service panel
Liquid refrigerant
pipe joint
Refrigerant pipe
ø6.35
(flared)
430
30°
155
90
35°
Gas refrigerant
pipe joint
Refrigerant pipe
198
(flared)
ø12.7
9
6
MUZ-FD25VA MUZ-FD35VA
WIRING DIAGRAM
10
MUZ-FD25VAH
MUZ-FD35VAH
11
MUZ-FD50VA
12
7
REFRIGERANT SYSTEM DIAGRAM
MUZ-FD25VA MUZ-FD25VAH MUZ-FD35VA MUZ-FD35VAH
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
thermistor
RT68
Ambient
temperature
thermistor
RT65
Strainer
#100
R.V. coil
heating ON
cooling OFF
Refrigerant flow in cooling
Refrigerant flow in heating
Unit: mm
MUZ-FD50VA
Refrigerant pipe
(with heat insulator)
Flared connection
Flared connection
Refrigerant pipe ø6.35
(with heat insulator)
ø
12.7
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
Ambient
temperature
thermistor
RT65
13
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.
14
PERFORMANCE CURVES8
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 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]
(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(6) Outdoor intake air wet-bulb temperature: °C [WB]
INDOOR UNIT
Wet and dry-bulb
thermometers
FRONT VIEW
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
OUTDOOR UNIT
Wet and dry-bulb
thermometers
BACK VIEW
Cooling capacity
Outdoor intake air Dry-bulb temperature(°C)
(
at Rated frequency)
Indoor intake air Wet-bulb
temperature( )
26
24
22
20
18
MUZ-FD25VAH
MUZ-FD35VA
MUZ-FD35VAH
MUZ-FD50VA
MUZ-FD25VA
15
9.3
8.0
6.7
5.3
MUZ-FD25VAH
7.7
7.0
6.3
5.7
5.1
4.5
MUZ-FD35VA
8.5
7.7
7.0
6.3
5.6
4.9
MUZ-FD35VAH
20.9
19.3
17.7
16.1
14.5
12.9
11.3
9.7
8.0
6.4
5.5
5.1
4.6
4.1
difference (°C)
3.7
3.3
Indoor air Wet-bulb temperature
MUZ-FD25VA
17.3
16.0
14.6
13.3
12.0
10.6
difference (°C)
Indoor air Dry-bulb temperature
1.3
1.2
1.1
1.0
0.9
Input correction factors
0.8
-10-5 0 5 1015202530354045
MUZ-FD50VA
25.6
23.7
21.7
19.7
17.7
15.8
13.8
11.8
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
9.9
0.5
Capacity correction factor
7.9
0.4
-20 -15 -10 -5 0 5 10 15
Total input (Cooling :
at Rated frequency
)
Indoor intake air Wet-bulb
temperature(°C)
Outdoor intake air Dry-bulb temperature (°C)
Heating capacity (
Indoor intake air Dry-bulb te
at Rated frequency)
mperature ( )
Outdoor intake air Wet-bulb temperature (°C)
22
26
24
20
18
15
20
26
MUZ-FD35VA
MUZ-FD25VAH
MUZ-FD25VA
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
20.9
19.3
17.7
16.1
14.5
12.9
11.3
9.7
8.0
6.4
MUZ-FD35VAH
MUZ-FD50VA
25.6
23.7
21.7
19.7
17.7
15.8
13.8
11.8
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
Input correction factor
9.9
0.5
7.9
0.4
Total input (Heating :
r Dry-
ke ai
inta
Indoor
at Rated frequency
bulb te
)
mperature (
26
)
°C
20
15
-20 -15 -10 -5 0 5 10 15
Outdoor intake air Wet-bulb temperature (°C)
MUZ-FD25VA
MUZ-FD25VAH
MUZ-FD35VAH
MUZ-FD35VA
MUZ-FD50VA
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
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-FD35VA
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-FD35VAH
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-FD50VA
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
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
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
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
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
3
2
1
Capacity correction factors
0
0 50 100 150(Hz)
The operational frequency of compressor
Correction of Heating input
2.0
1.5
1.0
0.5
Capacity correction factors
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.)
Dry-bulb temperature (°C) Relative humidity (%)
20 50
25 60
30 70
Outdoor low pressure
MUZ-FD25VA MUZ-FD25VAH
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(%)
MUZ-FD50VA
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
14
12
10
8
6
4
[Gauge]
2
kgf/cm
[Gauge]
2
kgf/cm
MUZ-FD35VA
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-FD35VAH
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
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])
18
Outdoor unit current
MUZ-FD25VA MUZ-FD25VAH
(A) (A)
2.4
2.2
2.0
1.8
15 205025
18
MUZ-FD50VA
(A)
6.5
6.0
5.5
5.0
4.5
15 20 25 30 35
60
Ambient temperature(°C)
Ambient humidity(%)
50 60 70
Ambient temperature (°C)
Ambient humidity (%)
3230
35(°C)
70 (%)
MUZ-FD35VA
4.0
3.5
3.0
2.5
15 205025
18
Ambient temperature(°C)
Ambient humidity(%)
60
3230
35(°C)
70 (%)
MUZ-FD35VAH
(A)
4.0
3.5
3.0
2.5
15 205025
18
Ambient temperature(°C)
Ambient humidity(%)
60
3230
35(°C)
70 (%)
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-FD25VA MUZ-FD25VAH
6.0
(A) (A)
5.5
5.0
4.5
4.0
MUZ-FD50VA
(A)
5 10152025
Ambient temperature(°C)
8.5
8.0
7.5
Indoor Outdoor
MUZ-FD35VA
6.0
5.5
5.0
4.5
4.0
2
510152025
Ambient temperature(°C)
MUZ-FD35VAH
(A)
6.0
5.5
5.0
4.5
4.0
2
5 10152025
Ambient temperature(°C)
7.0
6.5
6.0
02 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
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)
2020
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