SERVICE MANUAL
FLOOR AND CEILING TYPE AIR CONDITIONERS
HFC
utilized
R410A
Wireless type
Models
No. OB339
MUCF-A18WV MUCF-A24WV -
Indication of model name
MUCF-A18WV MUCF-A24WV -
E1
E1
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················5
3. SPECIFICATION·················································5
4. NOISE CRITERIA CURVES·······························6
5. OUTLINES AND DIMENSIONS·························7
6. WIRING DIAGRAM ············································8
7. REFRIGERANT SYSTEM DIAGRAM················9
8. PERFORMANCE CURVES······························11
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E1
9. TROUBLESHOOTING······································17
10. DISASSEMBLY INSTRUCTIONS·····················19
11. PARTS LIST······················································23
NOTE:
•This service manual describes technical data of outdoor units.
As for indoor units MCF-A18WV- and MCF-A24WV- , refer to the
service manual OB338.
E1E1
1
Refrigerating
oil
Refrigerant
New refrigerant
R410A
HFC-32: HFC-125 (50%:50%)
Pseudo-azeotropic refrigerant
Not included
A1/A1
72.6
-51.4
1.557
64
Non combustible
0
1730
From liquid phase in cylinder
Possible
Incompatible oil
Non
Non
Previous refrigerant
R22
R22 (100%)
Single refrigerant
Included
A1
86.5
-40.8
0.94
44.4
Non combustible
0.055
1700
Gas phase
Possible
Compatible oil
Light yellow
Non
Refrigerant
Composition (Ratio)
Refrigerant handling
Chlorine
Safety group (ASHRAE)
Molecular weight
Boiling point (:)
Steam pressure [25:](Mpa)
Saturated steam density [25:](Kg/K)
Combustibility
ODP w1
GWP w2
Refrigerant charge method
Additional charge on leakage
Kind
Color
Smell
w1:Ozone Destruction Parameter : based on CFC-11
w2 :Global Warmth Parameter : based on CO
2
TECHNICAL CHANGES
MUCF-18NV - ➔MUCF-A18WV -
1. Refrigerant has changed. (R22➔R410A)
2. Refrigerant system diagram has changed.
• Diameter of stop valve has changed. (Gas: [15.88➔[12.7)
• Accumulator has removed.
3. Oil separator has been added.
4. Compressor has changed. (NH33VMDT➔RN196VHSHT)
MUCF-24NV - ➔MUCF-A24WV -
1. Refrigerant has changed. (R22➔R410A)
2. Refrigerant system diagram has changed.
• Diameter of stop valve has changed. (Liquid: [9.52➔[6.35)
3. Compressor has changed. (NH47VMDT➔NN29VBAHT)
E1E3
E1E3
INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT
• This room air conditioner adopts an HFC refrigerant (R410A) which never destroys the ozone layer.
• Pay particular attention to the following points, though the basic installation procedure is same as that for R22 conditioners.
1 As R410A has working pressure approximate 1.6 times as high as that of R22, some special tools and piping parts/
materials are required. Refer to the table below.
2 Take sufficient care not to allow water and other contaminations to enter the R410Arefrigerant during storage and
installation, since it is more susceptible to contaminations than R22.
3 For refrigerant piping, use clean, pressure-proof parts/materials specifically designed for R410A. (Refer to 2. Refrigerant
piping.)
4 Composition change may occur in R410A since it is a mixed refrigerant. When charging, charge liquid refrigerant to prevent
composition change.
2
NOTE : The unit of pressure has been changed to MPa on the international system of units(SI unit system).
New Specification Current Specification
The incompatible refrigerating oil easily separates from
refrigerant and is in the upper layer inside the suction muffler.
Raising position of the oil back hole enables to back the
refrigerating oil of the upper layer to flow back to the
compressor.
Since refrigerant and refrigerating oil are compatible each,
refrigerating oil backs to the compressor through the lower
position oil back hole.
Compressor
Suction muffler
Oil back hole
Refrigerating oil
Refrigerant
Compressor
Suction muffler
Oil back hole
Refrigerating oil /Refrigerant
Compressor
-30 -20 -10 0 10 20
30
40 50 60
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
(MPa [Gauge])
R410A
R22
Conversion chart of refrigerant temperature and pressure
Saturated liquid pressure
(:)
R410A tools Can R22 tools be used?
Gas leak detector
R410A has high pressures beyond the measurement range of existing
gauges. Port diameters have been changed to prevent any other refrigerant
from being charged into the unit.
Hose material and cap size have been changed to improve the pressure
resistance.
Dedicated for HFC refrigerant.
6.35 mm and 9.52 mm
Description
Clamp bar hole has been enlarged to reinforce the spring strength in the tool.
Provided for flaring work (to be used with R22 flare tool).
Provided to prevent the back flow of oil. This adapter enables you to use
vacuum pumps.
It is difficult to measure R410A with a charging cylinder because the
refrigerant bubbles due to high pressure and high-speed vaporization
No
No
No
Yes
Yes
New
New
New
Gauge manifold
Charge hose
Torque wrench
Flare tool
Flare gauge
Vacuum pump
adapter
Electronic scale for
refrigerant charging
No : Not Substitutable for R410A Yes : Substitutable for R410A
No 12.7 mm and 15.88 mm
The conversion factor is: 1(MPa [Gauge]) =10.2(kgf/ff[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/ff[Gauge])
1.Tools dedicated for the air conditioner with R410A refrigerant
The following tools are required for R410A refrigerant. Some R22 tools can be substituted for R410A tools.
The diameter of the service port on the stop valve in outdoor unit has been changed to prevent any other refrigerant being
charged into the unit. Cap size has been changed from 7/16 UNF with 20 threads to 1/2 UNF with 20 threads.
3
Electronic scale for refrigerant charging
Outdoor unit
Refrigerant gas
cylinder
operating valve
Refrigerant gas cylinder
for R410A with siphon
Refrigerant (liquid)
Service port
Gauge manifold
valve (for R410A)
Union
Liquid pipe
Gas pipe
Stop valve
Indoor unit
Charge hose (for R410A)
R410A
Pipe diameter
mm
6.35
9.52
12.7
15.88
17
22
26
29
Dimension of flare nut
R22
17
22
24
27
2.Refrigerant piping
Wall
thickness
Outside diameter
Pipe
mm
For liquid
For gas
6.35
9.52
12.7
15.88
0.8 mm
0.8 mm
0.8 mm
1.0 mm
Heat resisting foam plastic
Specific gravity 0.045 Thickness 8 mm
Insulation material
1 Specifications
Use the refrigerant pipes that meet the following specifications.
• Use a copper pipe or a copper-alloy seamless pipe with a thickness of 0.8 mm (6.35, 9.52, 12.7), 1.0 mm (15.88).
Never use any pipe with a thickness less than 0.8 mm (6.35, 9.52, 12.7), 1.0 mm (15.88), as the pressure resistance is
insufficient.
2 Flaring work and flare nut
Flaring work for R410A pipe differs from that for R22 pipe.
For details of flaring work, refer to Installation manual “FLARING WORK”.
3.Refrigerant oil
Apply the special refrigeration oil (accessories: packed with indoor unit) to the flare and the union seat surfaces.
4.Air purge
• Do not discharge the refrigerant into the atmosphere.
Take care not to discharge refrigerant into the atmosphere during installation, reinstallation, or repairs to the refrigerant
circuit.
• Use the vacuum pump for air purging for the purpose of environmental protection.
5.Additional charge
For additional charging, charge the refrigerant from liquid phase of the gas cylinder.
If the refrigerant is charged from the gas phase, composition change may occur in the refrigerant inside the cylinder and the
outdoor unit. In this case, ability of the refrigerating cycle decreases or normal operation can be impossible. However,
charging the liquid refrigerant all at once may cause the compressor to be locked. Thus, charge the refrigerant slowly.
4
2
Drain hose
Piping
Air inlet
Air outlet
Drain outlet
(back and side)
Outdoor model
Function
Power supply
Capacity
Dehumidification
Air flow(High)
Power outlet
Runnning current
Power input
Power factor
Starting current
Compressor motor current
Fan motor current
Model
Output
Winding
resistance(at 20:)
Model
Winding
resistance(at 20:)
Dimensions WOHOD
Weight
Sound level(High)
Fan speed(High)
Fan speed regulator
Refrigerant filling
capacity(R410A)
Refrigerating oil (Model)
kW
r/h
K /h
A
A
W
%
A
A
A
W
"
"
mm
kg
dB
rpm
kg
cc
MUCF-A18WV -
E1
Cooling
Single phase
230V, 50Hz
4.8
2.4
2,196
15
7.98
1,744
95
37
7.59
0.39
2.65
RN196VHSHT
1,300
C-R 1.80
C-S 3.00
RA6V50-OG
WHT-BLK 116
BLK-RED 111
850o605o290
44
52
825
1
1.45
520 (NEO22)
MUCF-A24WV -
E1
Cooling
Single phase
230V, 50Hz
6.0
3.1
2,322
25
10.62
2,370
97
74
10.07
0.55
2.45
NN29VBAHT
1,900
C-R 0.80
C-S 1.64
RA6V60-MA
WHT-BLK 71
BLK-RED 89
850o605o290
60
53
873
1
1.85
1,200 (NEO22)
Electrical
data
Compressor
Fan
motor
Special
remarks
Coefficient of performance(C.O.P)
Capacity
PART NAMES AND FUNCTIONS
OUTDOOR UNIT
MUCF-A18WV MUCF-A24WV -
3
SPECIFICATION
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E1
NOTE: Test conditions are based on ISO 5151
Cooling : Indoor DB27°C WB19°C
Outdoor DB35°C WB(24°C)
Indoor-Outdoor piping length : 5m
5
4
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
Test conditions,
Cooling : Dry-bulb temperature 35: Wet-bulb temperature 24:
53
SPL(dB(A)) LINE
High
FAN SPEED
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
Test conditions,
Cooling : Dry-bulb temperature 35: Wet-bulb temperature 24:
High
FAN SPEED
52
SPL(dB
(A)) LINE
NOISE CRITERIA CURVES
NOISE CRITERIA CURVES
MUCF-A18WV -
E1
MUCF-A24WV -
E1
OUTDOOR UNIT
1m
MICROPHONE
6
5
OUTLINES AND DIMENSIONS
MUCF-A18WV - MUCF-A24WV -
OUTDOOR UNIT
Drainage
hole [16.2
35
90
248
Air in
605
Drainage
3holes [33
292
20
355
350
Air in
Air out
183
500
850
20
50
E1E1
100mm or more
100mm or more
74
157
290
30
100
310
345
100mm or more
161
500mm or more
Service panel
Liquid refrigerant
pipe joint
Refregerant pipe
(flared) [6.35
35-
30-
Gas refregerant
pipe joint
Refregerant pipe
(flared) [12.7 (MUCF-A18WV)
[15.88 (MUCF-A24WV)
Unit: mm
350mm or more
7
6
WIRING DIAGRAM
MUCF-A18WV -
OUTDOOR UNIT
TO
INDOOR UNIT
CONNECTING
E1
MODEL WIRING DIAGRAM
TB2
2
WHT
1
BLK
52C
12V
CIRCUIT BREAKER
POWER SUPPLY
~/N
230V 50Hz
SYMBOL
COMPRESSOR CAPACITOR
C1
OUTDOOR FAN CAPACITOR
C2
DSAR
NOTES:
SURGE ABSORBER
1.About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3.Symbols below indicate.
: Terminal block
NAME
: Connector
TB1
PE
L
N
BLU
GRN/YLW
SYMBOL
MC
MF
TB1,TB2
52C
BRN
NO COM
COMPRESOR (INNER PROTECTOR)
OUTDOOR FAN MOTOR (INNER PROTECTOR)
TERMINAL BLOCK
NAME
BRN
WHT
WHT
DSAR
C2
SYMBOL
52C
C
C1
RED
BLK
RED
1
ORN
2
WHT
3
BLU
4
COMPRESSOR CONTACTOR
S
RED
ORN
WHT
BLK
MC
R
MF
NAME
MUCF-A24WV -
OUTDOOR UNIT
TO
INDOOR UNIT
CONNECTING
E1
MODEL WIRING DIAGRAM
TB2
2
WHT
1
BLK
X1
12V
DSAR
52C
NO
NO
CIRCUIT BREAKER
POWER SUPPLY
~/N
230V 50Hz
PE
L
N
BRN
BRN
BRN
X1
WHT
52C
BRN
BLU
BLU
GRN/YLW
TB1
SYMBOL
COMPRESSOR CAPACITOR
C1
OUTDOOR FAN CAPACITOR
C2
DSAR
NOTES:
SURGE ABSORBER
1.About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3.Symbols below indicate.
: Terminal block
NAME
: Connector
SYMBOL
MC
MF
TB1,TB2
COMPRESSOR (INNER PROTECTOR)
OUTDOOR FAN MOTOR (INNER PROTECTOR)
TERMINAL BLOCK
8
COM
COM
NAME
C1
C2
SYMBOL
X1
52C
WHT
RED
BLK
ORN
WHT
BLU
RELAY
COMPRESSOR CONTACTOR
S
1
2
3
4
MC
REDRED
ORN
WHT
BLK
C
R
MF
NAME
7
REFRIGERANT SYSTEM DIAGRAM
MUCF-A18WV -
OUTDOOR UNIT
E1
Refrigerant pipe [12.7
(with heat insulator)
Flared connection
Flared connection
Stop valve
(with service
port)
Stop
valve
Capillary tube
[2.5o[0.6o1,000
Oil separator
Compressor
Strainer
#100
Unit:mm
Outdoor
heat
exchanger
MUCF-A24WV -
OUTDOOR UNIT
Refrigerant pipe[6.35
(with heat insulator)
E1
Refrigerant pipe [15.88
(with heat insulator)
Stop valve
(with service port)
Flared connection
Muffler
Capillary tube
[3.0o[1.6o650
Refrigerant flow in cooling
Muffler
#100
Outdoor
heat
exchanger
Compressor
Flared connection
Refrigerant pipe [6.35
(with heat insulator)
Stop valve
Capillary tube
[3.0X[2.0X1000
Refrigerant flow in cooling
9
A: Refrigerant piping
Max. length
25m
Max. Height
difference *
10m
*Height difference should be within
10m regardless of which unit,
indoor or outdoor position is high.
Indoor unit
Outdoor unit
If pipe length exceeds 7m, additional refrigerant (R410A) charge is required.
Model
MUCF-A18WV -
E1
MUCF-A24WV - E1
Refrigerant piping length (one way)
Outdoor unit precharged
1,450
1,850
15m
160
20m
260
25m
360
7m
0
10m
60
REFRIGERANT PIPING MAX. LENGTH & MAX. HEIGHT DIFFERENCE
Models
MUCF-A18WV MUCF-A24WV -
Refrigerant piping
Piping size O.D. : mm
Max. length : m
A
E1
E1
25
Gas
{12.7
{15.88
Liquid
{6.35
ADDITIONAL REFRIGERANT CHARGE (R410A : g)
Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)
10
8
Air in
Air out
Wet-and dry-bulb
thermometers
FRONT VIEW
MCF-A18WV - E1
MUCF-A18WV - E1
MCF-A24WV - E1
MUCF-A24WV - E1
11.3
7.3
9.2
8.3
10.3
12.4
13.1
10.6
9.5
8.4
11.8
14.4
Wet-and dry-bulb
thermometers
PERFORMANCE CURVES
MUCF-A18WV - MUCF-A24WV -
The standard data contained in these 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 ~ 264V, 50Hz
(2) AIR FLOW
Air flow should be set at MAX.
(3) MAIN READINGS
(1) Indoor intake air wet-bulb temperature : °CWB
(2) Indoor outlet air wet-bulb temperature : °CWB
(3) Outdoor intake air dry-bulb temperature : °CDB
(4) Total input: W
Indoor air wet/dry-bulb temperature difference on the left side of the chart on this page 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.
E1E1
Cooling
}
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 to start the EMERGENCY COOL 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
11
OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
50
60
70 (%)
Ambient temperature (:)
Ambient humidity (%)
Outdoor low pressure
18
32
50 60 70 (%)
Ambient temperature (:)
Ambient humidity (%)
Outdoor unit current (A)
15 20 25 30 35(:)
0.6
0.7
0.8
0.9
1.0
1.1
1.2
6
7
8
9
10
11
12
230V
15 20 25 30 35(:)
5
6
7
8
9
10
18
32
230V
50
60
70 (%)
Ambient temperature (:)
Ambient humidity (%)
Outdoor low pressure
18
32
50 60 70 (%)
Ambient temperature (:)
Ambient humidity (%)
Outdoor unit current (A)
15 20 25 30 35(:)
0.5
0.6
0.7
0.8
0.9
1.0
1.1
5
6
7
8
9
10
11
230V
15 20 25 30 35(:)
7
8
9
10
11
12
18
32
230V
COOL operation
1 Both indoor and outdoor units are under the same temperature/humidity condition.
Dry Bulb temperature (˚C)
20
25
30
Relative humidity (%)
50
60
70
2 Air flow should be set at MAX.
3 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/ff[Gauge])
(kgf/F[Gauge])(MPa[Gauge])
MUCF-A18WV -
E1
MUCF-A18WV -
E1
(kgf/F[Gauge])(MPa[Gauge])
MUCF-A24WV -
E1
MUCF-A24WV -
E1
12
PERFORMANCE DATA COOL operation(230V)
MCF-A18WV - : MUCF-A18WV -
CAPACITY :4.8(KW) SHF :0.65 INPUT :1810(W)
INDOOR INDOOR
DB(:) WB(:)
21 18 5.64 2.65 0.47 1448 5.40 2.54 0.47 1520 5.18 2.44 0.47 1593 4.99 2.35 0.47 1665
21 20 5.88 2.06 0.35 1520 5.64 1.97 0.35 1611 5.47 1.92 0.35 1647 5.28 1.85 0.35 1720
22 18 5.64 2.88 0.51 1448 5.40 2.75 0.51 1520 5.18 2.64 0.51 1593 4.99 2.55 0.51 1665
22 20 5.88 2.29 0.39 1520 5.64 2.20 0.39 1611 5.47 2.13 0.39 1647 5.28 2.06 0.39 1720
22 22 6.12 1.65 0.27 1575 5.90 1.59 0.27 1674 5.76 1.56 0.27 1720 5.52 1.49 0.27 1792
23 18 5.64 3.10 0.55 1448 5.40 2.97 0.55 1520 5.18 2.85 0.55 1593 4.99 2.75 0.55 1665
23 20 5.88 2.53 0.43 1520 5.64 2.43 0.43 1611 5.47 2.35 0.43 1647 5.28 2.27 0.43 1720
23 22 6.12 1.90 0.31 1575 5.90 1.83 0.31 1674 5.76 1.79 0.31 1720 5.52 1.71 0.31 1792
24 18 5.64 3.33 0.59 1448 5.40 3.19 0.59 1520 5.18 3.06 0.59 1593 4.99 2.95 0.59 1665
24 20 5.88 2.76 0.47 1520 5.64 2.65 0.47 1611 5.47 2.57 0.47 1647 5.28 2.48 0.47 1720
24 22 6.12 2.14 0.35 1575 5.90 2.07 0.35 1674 5.76 2.02 0.35 1720 5.52 1.93 0.35 1792
24 24 6.43 1.48 0.23 1647 6.19 1.42 0.23 1738 6.05 1.39 0.23 1792 5.86 1.35 0.23 1882
25 18 5.64 3.55 0.63 1448 5.40 3.40 0.63 1520 5.18 3.27 0.63 1593 4.99 3.14 0.63 1665
25 20 5.88 3.00 0.51 1520 5.64 2.88 0.51 1611 5.47 2.79 0.51 1647 5.28 2.69 0.51 1720
25 22 6.12 2.39 0.39 1575 5.90 2.30 0.39 1674 5.76 2.25 0.39 1720 5.52 2.15 0.39 1792
25 24 6.43 1.74 0.27 1647 6.19 1.67 0.27 1738 6.05 1.63 0.27 1792 5.86 1.58 0.27 1882
26 18 5.64 3.78 0.67 1448 5.40 3.62 0.67 1520 5.18 3.47 0.67 1593 4.99 3.34 0.67 1665
26 20 5.88 3.23 0.55 1520 5.64 3.10 0.55 1611 5.47 3.01 0.55 1647 5.28 2.90 0.55 1720
26 22 6.12 2.63 0.43 1575 5.90 2.54 0.43 1674 5.76 2.48 0.43 1720 5.52 2.37 0.43 1792
26 24 6.43 1.99 0.31 1647 6.19 1.92 0.31 1738 6.05 1.87 0.31 1792 5.86 1.82 0.31 1882
26 26 6.62 1.26 0.19 1738 6.43 1.22 0.19 1828 6.34 1.20 0.19 1882 6.14 1.17 0.19 1937
27 18 5.64 4.00 0.71 1448 5.40 3.83 0.71 1520 5.18 3.68 0.71 1593 4.99 3.54 0.71 1665
27 20 5.88 3.47 0.59 1520 5.64 3.33 0.59 1611 5.47 3.23 0.59 1647 5.28 3.12 0.59 1720
27 22 6.12 2.88 0.47 1575 5.90 2.77 0.47 1674 5.76 2.71 0.47 1720 5.52 2.59 0.47 1792
27 24 6.43 2.25 0.35 1647 6.19 2.17 0.35 1738 6.05 2.12 0.35 1792 5.86 2.05 0.35 1882
27 26 6.62 1.52 0.23 1738 6.43 1.48 0.23 1828 6.34 1.46 0.23 1882 6.14 1.41 0.23 1937
28 18 5.64 4.23 0.75 1448 5.40 4.05 0.75 1520 5.18 3.89 0.75 1593 4.99 3.74 0.75 1665
28 20 5.88 3.70 0.63 1520 5.64 3.55 0.63 1611 5.47 3.45 0.63 1647 5.28 3.33 0.63 1720
28 22 6.12 3.12 0.51 1575 5.90 3.01 0.51 1674 5.76 2.94 0.51 1720 5.52 2.82 0.51 1792
28 24 6.43 2.51 0.39 1647 6.19 2.41 0.39 1738 6.05 2.36 0.39 1792 5.86 2.28 0.39 1882
28 26 6.62 1.79 0.27 1738 6.43 1.74 0.27 1828 6.34 1.71 0.27 1882 6.14 1.66 0.27 1937
29 18 5.64 4.46 0.79 1448 5.40 4.27 0.79 1520 5.18 4.10 0.79 1593 4.99 3.94 0.79 1665
29 20 5.88 3.94 0.67 1520 5.64 3.78 0.67 1611 5.47 3.67 0.67 1647 5.28 3.54 0.67 1720
29 22 6.12 3.37 0.55 1575 5.90 3.25 0.55 1674 5.76 3.17 0.55 1720 5.52 3.04 0.55 1792
29 24 6.43 2.77 0.43 1647 6.19 2.66 0.43 1738 6.05 2.60 0.43 1792 5.86 2.52 0.43 1882
29 26 6.62 2.05 0.31 1738 6.43 1.99 0.31 1828 6.34 1.96 0.31 1882 6.14 1.90 0.31 1937
30 18 5.64 4.68 0.83 1448 5.40 4.48 0.83 1520 5.18 4.30 0.83 1593 4.99 4.14 0.83 1665
30 20 5.88 4.17 0.71 1520 5.64 4.00 0.71 1611 5.47 3.89 0.71 1647 5.28 3.75 0.71 1720
30 22 6.12 3.61 0.59 1575 5.90 3.48 0.59 1674 5.76 3.40 0.59 1720 5.52 3.26 0.59 1792
30 24 6.43 3.02 0.47 1647 6.19 2.91 0.47 1738 6.05 2.84 0.47 1792 5.86 2.75 0.47 1882
30 26 6.62 2.32 0.35 1738 6.43 2.25 0.35 1828 6.34 2.22 0.35 1882 6.14 2.15 0.35 1937
31 18 5.64 4.91 0.87 1448 5.40 4.70 0.87 1520 5.18 4.51 0.87 1593 4.99 4.34 0.87 1665
31 20 5.88 4.41 0.75 1520 5.64 4.23 0.75 1611 5.47 4.10 0.75 1647 5.28 3.96 0.75 1720
31 22 6.12 3.86 0.63 1575 5.90 3.72 0.63 1674 5.76 3.63 0.63 1720 5.52 3.48 0.63 1792
31 24 6.43 3.28 0.51 1647 6.19 3.16 0.51 1738 6.05 3.08 0.51 1792 5.86 2.99 0.51 1882
31 26 6.62 2.58 0.39 1738 6.43 2.51 0.39 1828 6.34 2.47 0.39 1882 6.14 2.40 0.39 1937
32 18 5.64 5.13 0.91 1448 5.40 4.91 0.91 1520 5.18 4.72 0.91 1593 4.99 4.54 0.91 1665
32 20 5.88 4.65 0.79 1520 5.64 4.46 0.79 1611 5.47 4.32 0.79 1647 5.28 4.17 0.79 1720
32 22 6.12 4.10 0.67 1575 5.90 3.96 0.67 1674 5.76 3.86 0.67 1720 5.52 3.70 0.67 1792
32 24 6.43 3.54 0.55 1647 6.19 3.41 0.55 1738 6.05 3.33 0.55 1792 5.86 3.22 0.55 1882
32 26 6.62 2.85 0.43 1738 6.43 2.77 0.43 1828 6.34 2.72 0.43 1882 6.14 2.64 0.43 1937
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
Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
21 25 27 30
E1E1
OUTDOOR DB(:)
13
PERFORMANCE DATA COOL operation(230V)
MCF-A18WV - : MUCF-A18WV -
CAPACITY :4.8(KW) SHF :0.65 INPUT :1810(W)
INDOOR INDOOR
DB(:) WB(:)
21 18 4.70 2.21 0.47 1774 4.32 2.03 0.47 1882 4.15 1.95 0.47 1919
21 20 4.94 1.73 0.35 1846 4.61 1.61 0.35 1937 4.44 1.55 0.35 1991
22 18 4.70 2.40 0.51 1774 4.32 2.20 0.51 1882 4.15 2.12 0.51 1919
22 20 4.94 1.93 0.39 1846 4.61 1.80 0.39 1937 4.44 1.73 0.39 1991
22 22 5.23 1.41 0.27 1919 4.90 1.32 0.27 2027 4.73 1.28 0.27 2063
23 18 4.70 2.59 0.55 1774 4.32 2.38 0.55 1882 4.15 2.28 0.55 1919
23 20 4.94 2.13 0.43 1846 4.61 1.98 0.43 1937 4.44 1.91 0.43 1991
23 22 5.23 1.62 0.31 1919 4.90 1.52 0.31 2027 4.73 1.47 0.31 2063
24 18 4.70 2.78 0.59 1774 4.32 2.55 0.59 1882 4.15 2.45 0.59 1919
24 20 4.94 2.32 0.47 1846 4.61 2.17 0.47 1937 4.44 2.09 0.47 1991
24 22 5.23 1.83 0.35 1919 4.90 1.71 0.35 2027 4.73 1.65 0.35 2063
24 24 5.52 1.27 0.23 1991 5.18 1.19 0.23 2082 5.04 1.16 0.23 2127
25 18 4.70 2.96 0.63 1774 4.32 2.72 0.63 1882 4.15 2.62 0.63 1919
25 20 4.94 2.52 0.51 1846 4.61 2.35 0.51 1937 4.44 2.26 0.51 1991
25 22 5.23 2.04 0.39 1919 4.90 1.91 0.39 2027 4.73 1.84 0.39 2063
25 24 5.52 1.49 0.27 1991 5.18 1.40 0.27 2082 5.04 1.36 0.27 2127
26 18 4.70 3.15 0.67 1774 4.32 2.89 0.67 1882 4.15 2.78 0.67 1919
26 20 4.94 2.72 0.55 1846 4.61 2.53 0.55 1937 4.44 2.44 0.55 1991
26 22 5.23 2.25 0.43 1919 4.90 2.11 0.43 2027 4.73 2.03 0.43 2063
26 24 5.52 1.71 0.31 1991 5.18 1.61 0.31 2082 5.04 1.56 0.31 2127
26 26 5.81 1.10 0.19 2063 5.47 1.04 0.19 2154 5.30 1.01 0.19 2199
27 18 4.70 3.34 0.71 1774 4.32 3.07 0.71 1882 4.15 2.95 0.71 1919
27 20 4.94 2.92 0.59 1846 4.61 2.72 0.59 1937 4.44 2.62 0.59 1991
27 22 5.23 2.46 0.47 1919 4.90 2.30 0.47 2027 4.73 2.22 0.47 2063
27 24 5.52 1.93 0.35 1991 5.18 1.81 0.35 2082 5.04 1.76 0.35 2127
27 26 5.81 1.34 0.23 2063 5.47 1.26 0.23 2154 5.30 1.22 0.23 2199
28 18 4.70 3.53 0.75 1774 4.32 3.24 0.75 1882 4.15 3.11 0.75 1919
28 20 4.94 3.11 0.63 1846 4.61 2.90 0.63 1937 4.44 2.80 0.63 1991
28 22 5.23 2.67 0.51 1919 4.90 2.50 0.51 2027 4.73 2.41 0.51 2063
28 24 5.52 2.15 0.39 1991 5.18 2.02 0.39 2082 5.04 1.97 0.39 2127
28 26 5.81 1.57 0.27 2063 5.47 1.48 0.27 2154 5.30 1.43 0.27 2199
29 18 4.70 3.72 0.79 1774 4.32 3.41 0.79 1882 4.15 3.28 0.79 1919
29 20 4.94 3.31 0.67 1846 4.61 3.09 0.67 1937 4.44 2.97 0.67 1991
29 22 5.23 2.88 0.55 1919 4.90 2.69 0.55 2027 4.73 2.60 0.55 2063
29 24 5.52 2.37 0.43 1991 5.18 2.23 0.43 2082 5.04 2.17 0.43 2127
29 26 5.81 1.80 0.31 2063 5.47 1.70 0.31 2154 5.30 1.64 0.31 2199
30 18 4.70 3.90 0.83 1774 4.32 3.59 0.83 1882 4.15 3.45 0.83 1919
30 20 4.94 3.51 0.71 1846 4.61 3.27 0.71 1937 4.44 3.15 0.71 1991
30 22 5.23 3.09 0.59 1919 4.90 2.89 0.59 2027 4.73 2.79 0.59 2063
30 24 5.52 2.59 0.47 1991 5.18 2.44 0.47 2082 5.04 2.37 0.47 2127
30 26 5.81 2.03 0.35 2063 5.47 1.92 0.35 2154 5.30 1.86 0.35 2199
31 18 4.70 4.09 0.87 1774 4.32 3.76 0.87 1882 4.15 3.61 0.87 1919
31 20 4.94 3.71 0.75 1846 4.61 3.46 0.75 1937 4.44 3.33 0.75 1991
31 22 5.23 3.30 0.63 1919 4.90 3.08 0.63 2027 4.73 2.98 0.63 2063
31 24 5.52 2.82 0.51 1991 5.18 2.64 0.51 2082 5.04 2.57 0.51 2127
31 26 5.81 2.27 0.39 2063 5.47 2.13 0.39 2154 5.30 2.07 0.39 2199
32 18 4.70 4.28 0.91 1774 4.32 3.93 0.91 1882 4.15 3.78 0.91 1919
32 20 4.94 3.91 0.79 1846 4.61 3.64 0.79 1937 4.44 3.51 0.79 1991
32 22 5.23 3.51 0.67 1919 4.90 3.28 0.67 2027 4.73 3.17 0.67 2063
32 24 5.52 3.04 0.55 1991 5.18 2.85 0.55 2082 5.04 2.77 0.55 2127
32 26 5.81 2.50 0.43 2063 5.47 2.35 0.43 2154 5.30 2.28 0.43 2199
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
Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
35 40 43
E1E1
OUTDOOR DB(:)
14
PERFORMANCE DATA COOL operation(230V)
MCF-A24WV - : MUCF-A24WV -
CAPACITY :6.0(KW) SHF :0.64 INPUT :2450(W)
INDOOR INDOOR
DB(:) WB(:)
21 18 7.05 3.24 0.46 1960 6.75 3.11 0.46 2058 6.48 2.98 0.46 2156 6.24 2.87 0.46 2254
21 20 7.35 2.50 0.34 2058 7.05 2.40 0.34 2181 6.84 2.33 0.34 2230 6.60 2.24 0.34 2328
22 18 7.05 3.53 0.50 1960 6.75 3.38 0.50 2058 6.48 3.24 0.50 2156 6.24 3.12 0.50 2254
22 20 7.35 2.79 0.38 2058 7.05 2.68 0.38 2181 6.84 2.60 0.38 2230 6.60 2.51 0.38 2328
22 22 7.65 1.99 0.26 2132 7.38 1.92 0.26 2266 7.20 1.87 0.26 2328 6.90 1.79 0.26 2426
23 18 7.05 3.81 0.54 1960 6.75 3.65 0.54 2058 6.48 3.50 0.54 2156 6.24 3.37 0.54 2254
23 20 7.35 3.09 0.42 2058 7.05 2.96 0.42 2181 6.84 2.87 0.42 2230 6.60 2.77 0.42 2328
23 22 7.65 2.30 0.30 2132 7.38 2.21 0.30 2266 7.20 2.16 0.30 2328 6.90 2.07 0.30 2426
24 18 7.05 4.09 0.58 1960 6.75 3.92 0.58 2058 6.48 3.76 0.58 2156 6.24 3.62 0.58 2254
24 20 7.35 3.38 0.46 2058 7.05 3.24 0.46 2181 6.84 3.15 0.46 2230 6.60 3.04 0.46 2328
24 22 7.65 2.60 0.34 2132 7.38 2.51 0.34 2266 7.20 2.45 0.34 2328 6.90 2.35 0.34 2426
24 24 8.04 1.77 0.22 2230 7.74 1.70 0.22 2352 7.56 1.66 0.22 2426 7.32 1.61 0.22 2548
25 18 7.05 4.37 0.62 1960 6.75 4.19 0.62 2058 6.48 4.02 0.62 2156 6.24 3.87 0.62 2254
25 20 7.35 3.68 0.50 2058 7.05 3.53 0.50 2181 6.84 3.42 0.50 2230 6.60 3.30 0.50 2328
25 22 7.65 2.91 0.38 2132 7.38 2.80 0.38 2266 7.20 2.74 0.38 2328 6.90 2.62 0.38 2426
25 24 8.04 2.09 0.26 2230 7.74 2.01 0.26 2352 7.56 1.97 0.26 2426 7.32 1.90 0.26 2548
26 18 7.05 4.65 0.66 1960 6.75 4.46 0.66 2058 6.48 4.28 0.66 2156 6.24 4.12 0.66 2254
26 20 7.35 3.97 0.54 2058 7.05 3.81 0.54 2181 6.84 3.69 0.54 2230 6.60 3.56 0.54 2328
26 22 7.65 3.21 0.42 2132 7.38 3.10 0.42 2266 7.20 3.02 0.42 2328 6.90 2.90 0.42 2426
26 24 8.04 2.41 0.30 2230 7.74 2.32 0.30 2352 7.56 2.27 0.30 2426 7.32 2.20 0.30 2548
26 26 8.28 1.49 0.18 2352 8.04 1.45 0.18 2475 7.92 1.43 0.18 2548 7.68 1.38 0.18 2622
27 18 7.05 4.94 0.70 1960 6.75 4.73 0.70 2058 6.48 4.54 0.70 2156 6.24 4.37 0.70 2254
27 20 7.35 4.26 0.58 2058 7.05 4.09 0.58 2181 6.84 3.97 0.58 2230 6.60 3.83 0.58 2328
27 22 7.65 3.52 0.46 2132 7.38 3.39 0.46 2266 7.20 3.31 0.46 2328 6.90 3.17 0.46 2426
27 24 8.04 2.73 0.34 2230 7.74 2.63 0.34 2352 7.56 2.57 0.34 2426 7.32 2.49 0.34 2548
27 26 8.28 1.82 0.22 2352 8.04 1.77 0.22 2475 7.92 1.74 0.22 2548 7.68 1.69 0.22 2622
28 18 7.05 5.22 0.74 1960 6.75 5.00 0.74 2058 6.48 4.80 0.74 2156 6.24 4.62 0.74 2254
28 20 7.35 4.56 0.62 2058 7.05 4.37 0.62 2181 6.84 4.24 0.62 2230 6.60 4.09 0.62 2328
28 22 7.65 3.83 0.50 2132 7.38 3.69 0.50 2266 7.20 3.60 0.50 2328 6.90 3.45 0.50 2426
28 24 8.04 3.06 0.38 2230 7.74 2.94 0.38 2352 7.56 2.87 0.38 2426 7.32 2.78 0.38 2548
28 26 8.28 2.15 0.26 2352 8.04 2.09 0.26 2475 7.92 2.06 0.26 2548 7.68 2.00 0.26 2622
29 18 7.05 5.50 0.78 1960 6.75 5.27 0.78 2058 6.48 5.05 0.78 2156 6.24 4.87 0.78 2254
29 20 7.35 4.85 0.66 2058 7.05 4.65 0.66 2181 6.84 4.51 0.66 2230 6.60 4.36 0.66 2328
29 22 7.65 4.13 0.54 2132 7.38 3.99 0.54 2266 7.20 3.89 0.54 2328 6.90 3.73 0.54 2426
29 24 8.04 3.38 0.42 2230 7.74 3.25 0.42 2352 7.56 3.18 0.42 2426 7.32 3.07 0.42 2548
29 26 8.28 2.48 0.30 2352 8.04 2.41 0.30 2475 7.92 2.38 0.30 2548 7.68 2.30 0.30 2622
30 18 7.05 5.78 0.82 1960 6.75 5.54 0.82 2058 6.48 5.31 0.82 2156 6.24 5.12 0.82 2254
30 20 7.35 5.15 0.70 2058 7.05 4.94 0.70 2181 6.84 4.79 0.70 2230 6.60 4.62 0.70 2328
30 22 7.65 4.44 0.58 2132 7.38 4.28 0.58 2266 7.20 4.18 0.58 2328 6.90 4.00 0.58 2426
30 24 8.04 3.70 0.46 2230 7.74 3.56 0.46 2352 7.56 3.48 0.46 2426 7.32 3.37 0.46 2548
30 26 8.28 2.82 0.34 2352 8.04 2.73 0.34 2475 7.92 2.69 0.34 2548 7.68 2.61 0.34 2622
31 18 7.05 6.06 0.86 1960 6.75 5.81 0.86 2058 6.48 5.57 0.86 2156 6.24 5.37 0.86 2254
31 20 7.35 5.44 0.74 2058 7.05 5.22 0.74 2181 6.84 5.06 0.74 2230 6.60 4.88 0.74 2328
31 22 7.65 4.74 0.62 2132 7.38 4.58 0.62 2266 7.20 4.46 0.62 2328 6.90 4.28 0.62 2426
31 24 8.04 4.02 0.50 2230 7.74 3.87 0.50 2352 7.56 3.78 0.50 2426 7.32 3.66 0.50 2548
31 26 8.28 3.15 0.38 2352 8.04 3.06 0.38 2475 7.92 3.01 0.38 2548 7.68 2.92 0.38 2622
32 18 7.05 6.35 0.90 1960 6.75 6.08 0.90 2058 6.48 5.83 0.90 2156 6.24 5.62 0.90 2254
32 20 7.35 5.73 0.78 2058 7.05 5.50 0.78 2181 6.84 5.34 0.78 2230 6.60 5.15 0.78 2328
32 22 7.65 5.05 0.66 2132 7.38 4.87 0.66 2266 7.20 4.75 0.66 2328 6.90 4.55 0.66 2426
32 24 8.04 4.34 0.54 2230 7.74 4.18 0.54 2352 7.56 4.08 0.54 2426 7.32 3.95 0.54 2548
32 26 8.28 3.48 0.42 2352 8.04 3.38 0.42 2475 7.92 3.33 0.42 2548 7.68 3.23 0.42 2622
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
Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
21 25 27 30
E1E1
OUTDOOR DB(:)
15
PERFORMANCE DATA COOL operation(230V)
MCF-A24WV - : MUCF-A24WV -
CAPACITY :6.0(KW) SHF :0.64 INPUT :2450(W)
INDOOR INDOOR
DB(:) WB(:)
21 18 5.88 2.70 0.46 2401 5.40 2.48 0.46 2548 5.19 2.39 0.46 2597
21 20 6.18 2.10 0.34 2499 5.76 1.96 0.34 2622 5.55 1.89 0.34 2695
22 18 5.88 2.94 0.50 2401 5.40 2.70 0.50 2548 5.19 2.60 0.50 2597
22 20 6.18 2.35 0.38 2499 5.76 2.19 0.38 2622 5.55 2.11 0.38 2695
22 22 6.54 1.70 0.26 2597 6.12 1.59 0.26 2744 5.91 1.54 0.26 2793
23 18 5.88 3.18 0.54 2401 5.40 2.92 0.54 2548 5.19 2.80 0.54 2597
23 20 6.18 2.60 0.42 2499 5.76 2.42 0.42 2622 5.55 2.33 0.42 2695
23 22 6.54 1.96 0.30 2597 6.12 1.84 0.30 2744 5.91 1.77 0.30 2793
24 18 5.88 3.41 0.58 2401 5.40 3.13 0.58 2548 5.19 3.01 0.58 2597
24 20 6.18 2.84 0.46 2499 5.76 2.65 0.46 2622 5.55 2.55 0.46 2695
24 22 6.54 2.22 0.34 2597 6.12 2.08 0.34 2744 5.91 2.01 0.34 2793
24 24 6.90 1.52 0.22 2695 6.48 1.43 0.22 2818 6.30 1.39 0.22 2879
25 18 5.88 3.65 0.62 2401 5.40 3.35 0.62 2548 5.19 3.22 0.62 2597
25 20 6.18 3.09 0.50 2499 5.76 2.88 0.50 2622 5.55 2.78 0.50 2695
25 22 6.54 2.49 0.38 2597 6.12 2.33 0.38 2744 5.91 2.25 0.38 2793
25 24 6.90 1.79 0.26 2695 6.48 1.68 0.26 2818 6.30 1.64 0.26 2879
26 18 5.88 3.88 0.66 2401 5.40 3.56 0.66 2548 5.19 3.43 0.66 2597
26 20 6.18 3.34 0.54 2499 5.76 3.11 0.54 2622 5.55 3.00 0.54 2695
26 22 6.54 2.75 0.42 2597 6.12 2.57 0.42 2744 5.91 2.48 0.42 2793
26 24 6.90 2.07 0.30 2695 6.48 1.94 0.30 2818 6.30 1.89 0.30 2879
26 26 7.26 1.31 0.18 2793 6.84 1.23 0.18 2916 6.63 1.19 0.18 2977
27 18 5.88 4.12 0.70 2401 5.40 3.78 0.70 2548 5.19 3.63 0.70 2597
27 20 6.18 3.58 0.58 2499 5.76 3.34 0.58 2622 5.55 3.22 0.58 2695
27 22 6.54 3.01 0.46 2597 6.12 2.82 0.46 2744 5.91 2.72 0.46 2793
27 24 6.90 2.35 0.34 2695 6.48 2.20 0.34 2818 6.30 2.14 0.34 2879
27 26 7.26 1.60 0.22 2793 6.84 1.50 0.22 2916 6.63 1.46 0.22 2977
28 18 5.88 4.35 0.74 2401 5.40 4.00 0.74 2548 5.19 3.84 0.74 2597
28 20 6.18 3.83 0.62 2499 5.76 3.57 0.62 2622 5.55 3.44 0.62 2695
28 22 6.54 3.27 0.50 2597 6.12 3.06 0.50 2744 5.91 2.96 0.50 2793
28 24 6.90 2.62 0.38 2695 6.48 2.46 0.38 2818 6.30 2.39 0.38 2879
28 26 7.26 1.89 0.26 2793 6.84 1.78 0.26 2916 6.63 1.72 0.26 2977
29 18 5.88 4.59 0.78 2401 5.40 4.21 0.78 2548 5.19 4.05 0.78 2597
29 20 6.18 4.08 0.66 2499 5.76 3.80 0.66 2622 5.55 3.66 0.66 2695
29 22 6.54 3.53 0.54 2597 6.12 3.30 0.54 2744 5.91 3.19 0.54 2793
29 24 6.90 2.90 0.42 2695 6.48 2.72 0.42 2818 6.30 2.65 0.42 2879
29 26 7.26 2.18 0.30 2793 6.84 2.05 0.30 2916 6.63 1.99 0.30 2977
30 18 5.88 4.82 0.82 2401 5.40 4.43 0.82 2548 5.19 4.26 0.82 2597
30 20 6.18 4.33 0.70 2499 5.76 4.03 0.70 2622 5.55 3.89 0.70 2695
30 22 6.54 3.79 0.58 2597 6.12 3.55 0.58 2744 5.91 3.43 0.58 2793
30 24 6.90 3.17 0.46 2695 6.48 2.98 0.46 2818 6.30 2.90 0.46 2879
30 26 7.26 2.47 0.34 2793 6.84 2.33 0.34 2916 6.63 2.25 0.34 2977
31 18 5.88 5.06 0.86 2401 5.40 4.64 0.86 2548 5.19 4.46 0.86 2597
31 20 6.18 4.57 0.74 2499 5.76 4.26 0.74 2622 5.55 4.11 0.74 2695
31 22 6.54 4.05 0.62 2597 6.12 3.79 0.62 2744 5.91 3.66 0.62 2793
31 24 6.90 3.45 0.50 2695 6.48 3.24 0.50 2818 6.30 3.15 0.50 2879
31 26 7.26 2.76 0.38 2793 6.84 2.60 0.38 2916 6.63 2.52 0.38 2977
32 18 5.88 5.29 0.90 2401 5.40 4.86 0.90 2548 5.19 4.67 0.90 2597
32 20 6.18 4.82 0.78 2499 5.76 4.49 0.78 2622 5.55 4.33 0.78 2695
32 22 6.54 4.32 0.66 2597 6.12 4.04 0.66 2744 5.91 3.90 0.66 2793
32 24 6.90 3.73 0.54 2695 6.48 3.50 0.54 2818 6.30 3.40 0.54 2879
32 26 7.26 3.05 0.42 2793 6.84 2.87 0.42 2916 6.63 2.78 0.42 2977
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
Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
35 40 43
E1E1
OUTDOOR DB(:)
16
9
Start
Indoor unit
operates.
Outdoor unit
doesn't
operate.
Indoor unit
doesn't
receive the
signal from
remote
controller.
OPERATION
INDICATOR
lamp on the
indoor unit is
flashing
on and off.
Outdoor unit
operates in
only Test Run
operation.
Outdoor unit
doesn't
operate
even in
Test Run
operation.
Indoor unit
operates, when
the
EMERGENCY
OPERATION
switch is
pressed.
Indoor unit
doesn't
operate,
when the
EMERGENCY
OPERATION
switch is
pressed.
Check room
temperature
thermistor.
Refer to
"Test point
diagram and
voltage".
Check of
wiring
diagram of
outdoor
unit on
page 8.w
Refer to
"Check of
remote
controller
and receiver
P.C. board".
Refer to
"Check of
indoor
electronic
control
P.C. board".
2-time flash
Cause:
Indoor unit
• Trouble of
room
temperature/
indoor coil
thermistor
Check room
tempreture
thermistor and
indoor coil
thermistor.
Refer to
"Test point
diagram and
voltage".
When the
remote
controller is
pressed
or when the
EMERGENCY
OPERATION
switch is
pressed,
the fan doesn't
rotate, with
OPERATION
INDICATOR
lamp on.
Refer to
"Check of
indoor fan
motor".
As for indoor unit, refer to service manual OB338.
w Before checking the outdoor unit, make sure if any signal or
power is being transmitted from the indoor unit.
4-time flash
Cause:
Indoor unit
• Trouble of
indoor unit
control
system
Replace the
indoor
electronic
control
P.C. board.
TROUBLESHOOTING
MUCF-A18WV - MUCF-A24WV -
E1E1
9-1. Cautions on troubleshooting
1. Before troubleshooting, check the following:
(1) Check the power supply voltage.
(2) Check the indoor/outdoor connecting wire for mis-wiring.
2. Take care the following during servicing.
(1) Before servicing the air conditioner, be sure to first turn off the remote controller to stop the main unit, and then after
confirming the horizontal vane is closed, turn off the breaker and / or disconnect the power plug.
(2) Be sure to turn OFF the power supply before removing the front panel, the cabinet, the top panel, and the electronic
control P.C. board.
(3) When removing the electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the com-
ponents.
(4) When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires.
3. Troubleshooting procedure
(1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality. To
make sure, check how many times the abnormality indication is flashing on and off before starting service work.
(2)Before servicing that the connector and terminal are connected properly.
(3) If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and the
components for bursting and discoloration.
(4) When troubleshooting, refer to the flow chart on this page.
9-2. Instruction of troubleshooting
17
9-3. Trouble criterion of main parts
MUCF-A18WV - MUCF-A24WV -
Part name FigureCheck method and criterion
E1E1
Compressor
(MC)
INNER
PROTECTOR
160i 5: OPEN
90i10: CLOSE
Outdoor fan motor(MF)
INNER
PROTECTOR
MUCF-A18WV
135i 5: OPEN
( 87i15: CLOSE
MUCF-A24WV
130i 5: OPEN
( 83i15: CLOSE
w Reference value
Measure the resistance between the terminals with a tester.
(Part temperature –10˚C ~ 40˚C)
Terminal
C – R
C – S
MUCF-A18WV
1.59 " ~ 1.95 "
2.65 " ~ 3.24 "
Normal
MUCF-A24WV
0.71 " ~ 0.87 "
1.45 " ~ 1.77 "
Measure the resistance between the terminals with a tester.
(Part temperature –10˚C ~ 40˚C)
Color of
w
)
w
)
lead wire
WHT – BLK
BLK – RED
MUCF-A18WV MUCF-A24WV
102 " ~ 126 "
97 " ~ 120 "
Normal
62 " ~ 77 "
78 " ~ 96 "
Abnormal
Open or
short-circuit
Abnormal
Open or
short-circuit
WHT
C
P
AUX
MAIN
S
RED
MAIN
AUX
P
BLK
RED
P
:INNER PROTECTOR
~
R
BLK
WHTORN
18
10
(1) Slide the sleeve and check if there is a locking lever or not. (2) The terminal with this connector is a terminal
with lock mechanism
1Slide the sleeve.
2Pull the terminal while
pushing the locking
lever.
1Hold the sleeve, and
pull out the terminal
slowly.
In case of terminal with lock mechanism, detach the terminal as shown below.
There are two types ( Refer to (1) and (2)) of the terminal with lock mechanism.
The terminal with no lock mechanism can be removed by pulling it out.
Check the shape of the terminal and work.
<"Terminal with lock mechanism" Detaching points>
Connector
Sleeve
Locking lever
DISASSEMBLY INSTRUCTIONS
10-1. MUCF-A18WV -
E1
OUTDOOR UNIT
OPERATING PROCEDURE
1. Removing the cabinet
(1) Remove the screws of the cabinet.
(2) Hold the down of the cabinet on the both side and remove
the cabinet.
Photo 2
Screws of
the cabinet
PHOTOS
Photo 1
Screws
of the
cabinet
Service
panel
2. Removing the electrical parts
(1) Remove the service panel and the cabinet.
(2) Remove the following parts.
•Compressor capacitor (C1)
•Outdoor fan capacitor (C2)
•Terminal block (TB1, TB2)
•Compressor contactor (52C)
Photo 3
Outdoor fan capacitor(C2)
Connector
Compressor capacitor(C1)
19
Compressor
contactor(52C)
Terminal blocks
(TB1, TB2)
OPERATING PROCEDURE
PHOTOS
3. Removing the outdoor fan motor
(1) Remove the cabinet. (Refer to 1.)
(2) Disconnect the connector and remove the hooked lead
wire from the fan motor.
(3) Remove the propeller nut and remove the propeller.
(4) Remove screws fixing the outdoor fan motor.
(5) Remove the outdoor fan motor.
4. Removing the compressor
(1) Remove the cabinet. (Refer to 1.)
(2) Remove the relay panel.
(3) Remove the soundproof felt.
(4) Remove the terminal cover on the compressor.
(5) Disconnect lead wires from the glass terminal of the com-
pressor.
(6) Recover gas from the refrigerant circuit.
(7) Disconnect the welded part of the discharge pipe.
(8) Disconnect the welded part of the suction pipe.
(9) Remove nuts fixing the compressor.
(10)
Remove the compressor.
Photo 4
Propeller
Photo 5
Discharge
pipe
Hook
Propeller nut
Soundproof felt
NOTE
● Before using a burner, reclaim gas from the pipes until the
pressure gauge shows 0 kg/cm
● Use the burner under the condition that gas can be recovered
even when the inner pressure rises by heat.
2
(MPa).
Suction
pipe
Compressor
Compressor set nuts
20
10-2. MUCF-A24WV -
OUTDOOR UNIT
E1
OPERATING PROCEDURE
1. Removing the cabinet
(1) Remove the screws of the cabinet.
(2) Hold the bottom of the cabinet on the both side to remove
the cabinet.
PHOTOS
Photo 1
Screws
Service
panel
Photo 2
2. Removing the electrical parts
(1) Remove the cabinet . (Refer to 1.)
(2) Remove the following parts.
•Compressor capacitor (C1)
•Outdoor fan capacitor (C2)
•Terminal block(TB1, TB2)
•Relay (X1)
•Compressor contactor (52C)
Screws
Photo 3
Outdoor fan capacitor (C2)
Connector
Relay (X1)
21
Compressor
capacitor (C1)
Compressor
contactor (52C)
Terminal
blocks
(TB1, TB2)
OPERATING PROCEDURE
PHOTOS
3. Removing the outdoor fan motor
(1) Remove the cabinet. (Refer to 1.)
(2) Disconnect the connector and remove the hocked lead
wire from the fan motor.
(3) Remove the propeller nut and remove the propeller.
(4) Remove the screws fixing the fan motor.
(5) Remove the outdoor fan motor.
4. Removing the compressor
(1) Remove the cabinet. (Refer to 1.)
(2) Remove the soundproof felt.
(3) Remove the terminal cover on the compressor.
(4) Disconnect the lead wires from the glass terminal of the
compressor.
(5) Recover gas from the refrigerant circuit.
(6) Disconnect the welded part of the discharge pipe.
(7) Disconnect the welded part of the suction pipe.
(8) Remove nuts fixing the compressor.
(9) Remove the compressor.
Photo 4
Propeller
Photo 5
Hook
Propeller nut
NOTE
● Before using a burner, reclaim gas from the pipes until the
pressure gauge shows 0 kg/cm
● Use the burner under the condition that gas can be recovered
even when the inner pressure rises by heat.
2
(0MPa).
Discharge
pipe
Suction
pipe
Compressor
Compressor set nuts
22
11
PARTS LIST
MUCF-A18WV MUCF-A24WV -
E1
E1
OUTDOOR UNIT
STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS
20
1
2
3
4
56
7
19
18
8
17
16
15
14
13
12
11
10
9
Part numbers that are circled are not shown in the illustration.
Part No. Part Name
No.
1
E02 817 233
2
E02 817 232
3
E02 817 521
4
E02 141 501
5
E02 139 515
E02 075 506
6
E02 527 506
E02 817 900
7
E02 821 900
E02 817 290
8
E02 818 290
E02 817 661
9
E02 818 661
10
E02 817 662
11
E02 817 245
E02 144 301
12
E02 818 301
E02 817 630
13
E02 818 630
14
E02 466 383
15
E02 818 374
16
E02 817 374
17
E02 138 351
E02 817 353
18
E02 818 353
19
E07 012 340
20
E02 817 009
E02 746 937
21
E02 825 936
E02 820 936
22
E02 466 340
23
E02 466 340
BACK PANEL(OUT)
CABINET
GRILLE(OUT)
PROPELLER
MOTOR SUPPORT
COMPRESSOR RUBBER SET
COMPRESSOR RUBBER SET
COMPRESSOR
COMPRESSOR
BASE
BASE
STOP VALVE(GAS)
STOP VALVE(GAS)
STOP VALVE(LIQUID)
SERVICE PANEL
OUTDOOR FAN MOTOR
OUTDOOR FAN MOTOR
OUTDOOR HEAT EXCHANGER
OUTDOOR HEAT EXCHANGER
SURGE ABSORBER
TERMINAL BLOCK
TERMINAL BLOCK
OUTDOOR FAN CAPACITOR
COMPRESSOR CAPACITOR
COMPRESSOR CAPACITOR
COMPRESSOR CONTACTOR
HANDLE
CAPILLARY TUBE
CAPILLARY TUBE
CAPILLARY TUBE
COMPRESSOR CONTACTOR
RELAY
Symbol
in Wiring
Diagram
MC
MC
MF
MF
DSAR
TB2
TB1
C2
C1
C1
52C
52C
X1
23
MUCF-A18WV-
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Q'ty/unit
E1
MUCF-A24WV-
E1
1
1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Remarks
3RUBBERS/SET
4RUBBERS/SET
RN196VHSHT
NN29VBAHT
{12.7
{15.88
{ 6.35
RA6V50 RA6V60 -
2P
3P
3.0+/440V AC
40+/440V AC
55+/440V AC
{3.0o{1.6o650
{3.0o{2.0o1000
{2.5o{0.6o1000
HEAD OFFICE: MITSUBISHI DENKI BLDG.,2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN
CC
Copyright 2004 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD
Distributed in Mar. 2004. No.OB339 6
Made in Japan
New publication, effective Mar. 2004
Specifications subject to change without notice.
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