Mitsubishi MCF-13NV-E3, MUCF-13NV-E3 Service Manual
FLOOR AND CEILING TYPE AIR CONDITIONERS
SERVICE MANUAL
Wireless type
Model
No. OB239
MCF-13NV-
(When installed on the floor)
(When installed on the ceiling)
(WH)
·MUCF-13NV-
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················2
3. SPECIFICATION·················································4
4. NOISE CRITERIA CURVES ······························ 5
5. OUTLINES AND DIMENSIONS·························6
6. WIRING DIAGRAM ············································7
7. REFRIGERANT SYSTEM DIAGRAM················8
8. PERFORMANCE CURVES································9
9. MICROPROCESSOR CONTROL ····················15
10. SERVICE FUNCTIONS·····································21
11. TROUBLESHOOTING ······································22
12. DISASSEMBLY INSTRUCTIONS·····················28
13. PARTS LIST······················································32
14. OPTIONAL PARTS ···········································35
E3E3
MCF-13NV -
E3
1
TECHNICAL CHANGES
MCF-13NV - ➔MCF-13NV -
1. Indoor unit model name has changed.
E3E2
MUCF-13NV - ➔MUCF-13NV -
1. Outdoor unit model has changed.
2
PART NAMES AND FUNCTIONS
E3E2
MCF-13NV -
E3
INDOOR UNIT
(When installed on the floor)
Operation section
(When the air inlet grille is opened.)
Vertical vanes
Horizontal vane
Operation indicator lamp
Receiving section
Front panel
Air cleaning filter (whilte bellows type)(option)
Air inlet
Air filter
Deodorizing filter (gray sponge type)(option)
Remote controller
Emergency operation switch
(When installed on the ceiling)
2
MUCF-13NV -
OUTDOOR UNIT
E3
Air inlet
(back and side)
Piping
Drain hose
Air outlet
Drain outlet
MCF-13NV -
E3
REMOTE CONTROLLER
CLOCKCLOCK
3
RESETRESET
3
Model
Function
Power supply
Capacity
Dehumidification
Air flow
Power outlet
Running current
Power input
Auxiliary heater
Power factor
Starting current
Compressor motor current
Fan motor current
kW
R/h
K/h
A
A
W
A(kW)
%
A
A
A
W
"
"
"
mm
mm
mm
mm
mm
mm
kg
kg
dB
dB
rpm
rpm
kg
cc
k"
k"
Capacity
Electrical
data
Coefficient of performance(C.O.P)
Compressor
Indoor
fan motor
Outdoor
fan motor
Dimensions
Indoor unit
Indoor unit
Width
Height
Depth
Width
Height
Depth
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
RT11(at 25:)
RT12(at 25:)
Sound level
(Hi)
Fan speed
(Hi)
Fan speed
regulator
Outdoor unit
Outdoor unit
Air direction
Refrigerant filling capacity(R-22)
Refrigerating machine oil <Model>
Thermistor
Weight
Special
remarks
Model
Output
Winding resistance (at 20:)
Model
Winding resistance (at 20:)
Model
Winding resistance (at 20:)
MCF-13NV-
E3
Cooling
Single phase, 220-240V, 50Hz
3.7
1.6
678
10
6.3-6.3
1,310-1,380
—
95-91
35-38
5.74-5.72
0.56-0.58
2.82-2.68
RH-231VHAT
1,100
C-R2.11 C-S3.97
RA6V33-CB
WHT-BLK 176
BLK-RED 413
34
5
43-44
49
1,080-1,130
700-750
3
1
0.85
520 <MS-56>
10
10
1,100
650
180
780
540
255
26
RB4V19-AB
WHT-BLK 203.2 BLK-YLW 45.9
YLW-BLU 32.7 BLU-BRN 44.4
BRN-RED 23.3
SPECIFICATION
NOTE:Test conditions
Cooling : Indoor DB27°C WB19°C Outdoor DB35°C WB24°C
4
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 0.002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
Test conditions,
Cooling : DB 27
:
WB 19
:
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
Hi
(220-240V)
NOTCH
43-44
SPL(dB
(A)) LINE
NOISE CRITERIA CURVES
MCF-13NV -
E3
MUCF-13NV -
E3
NOTCH
Hi
SPL(dB
49
(A)) LINE
Test conditions,
90
Cooling : DB 35
:
WB 24
:
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
CONTINUOUS
NOISE
10
63 125 250 500 1000 2000 4000 8000
NC-20
BAND CENTER FREQUENCIES, Hz
5
5
(When installed on the floor)
(When installed on the ceiling)
50cm or more
50cm or more
50cm or more
50cm or more
100cm or more
650
616.5
80.8 906 112.8
114
16
1100
93
77
113
143
180
17042.5
160
56
17.5
12.7
Gas line
6.35
Liquid line
320
25
43-
35-
155
90
104
74
260
10
780
500
122
40
540
320
285
255
Service panel
Gas refrigerant
pipe joint
Refrigerant pipe
(flared)[12.7
Liquid refrigerant
pipe joint
Refrigerant pipe
(flared) [6.35
Airout
Air in
Air in
109
32
110
147
Drainage
3holes [33
If clearance
behind the outdoor
units only 40
B or 50
B
side
A must be
fully open.
10cm or more
10cm or more
10cm or more
Outdoor
unit
35cm or more
REQUIRED SPACE
A
40cm or more
OUTLINES AND DIMENSIONS
MCF-13NV -
INDOOR UNIT
E3
Unit: mm
MUCF-13NV -
OUTDOOR UNIT
E3
6
WIRING DIAGRAM6
SYMBOL
MF
TB
SYMBOL
F
MC
SYMBOL
C1
C2
NAME
NAME NAME
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
FUSE(2A)
COMPRESSOR(INNER THERMOSTAT)
OUTDOOR FAN MOTOR(INNER THERMOSTAT)
TERMINAL BLOCK
W
W
MF
BLK
WHT
RED
N
2
220-240V~
BLU
BLU
WHT
BLK
RED
C1
TB
F
C2
RED
WHT
1
2
3
GRN/YLW
FROM
INDOOR UNIT
CONNECTING
C
S
R
MC
WHT
WHT
MCF-13NV -
INDOOR UNIT
CIRCUIT BREAKER
TO OUTDOOR
UNIT
CONNECTING
REMOTE
CONTROLLER
SYMBOL
C11
F11
HIC1
MF
NOTE:1. For the outdoor electric wiring refer to the outdoor unit electric wiring diagram for servicing.
2. Use copper conductors only.(For field wiring)
3. Symbols below indicate.
: Terminal block, : Connector
E3
MODEL WIRING DIAGRAM
TB
PE
GRN/YLW
N
BLU
W
L
W
BRN
POWER SUPPLY
~/N 220-240V
50Hz
GRN/YLW
N
W
BLU
2
220-240v~
INDOOR FAN CAPACITOR
FUSE (3.15A)
DC/DC CONVERTER
INDOOR FAN MOTOR(INNER FUSE)
W
WHT
DISPLAY &
RECEIVER
P.C.BOARD
NAME
AUTO RESTART
ASSEMBLY
SYMBOL
CN
101
5
5
MV
NR11
RT11
RT12
W
4
52C
3
W
TRANS
ELECTRONIC CONTROL P.C BOARD
CN
104
CN
113
5
3
2
1
CN201
CN
151
4
6
6
MV
SW/THERMO
P.C.BOARD
RT11
NAME NAME
VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMISTOR
COIL TEMPERATURE THERMISTOR
HIC1
F11
C11
NR11
SR144
SR142
SR143
SYMBOL
SR142~
SR144
TB
52C
2
CN
112
LDCOM
LDC11
LDC12
LDFH
LDFL
LDFM
2
WHT
ORN
RED
BLK
BLU
YLW
SOLID STATE RELAY
TERMINAL BLOCK
CONTACTOR
1
2
3
7
4
6
5
8
RT12
WHT
ORN
RED
BRN
BLK
BLU
YLW
GRN/YLW
MF
MUCF-13NV -
OUTDOOR UNIT
E3
MODEL WIRING DIAGRAM
NOTE : 1. Use copper conductors only (For field wiring).
2. “W” shows the terminals with a lock mechanism,
so they cannot be removed when you pull the lead wire.
Be sure to pull the lead wire by pushing the locking lever
(projected part) of the terminal with a finger.
7
1Slide the sleeve.
2Pull the wire while pushing the locking lever.
REFRIGERANT SYSTEM DIAGRAM7
Refrigerant flow in cooling
Indoor
heat
exchanger
Indoor coil
thermistor
RT12
Room
temperature
thermistor
RT11
(option)
(With heat insulation)
Refrigerant pipe
[
12.7
(option)
(With heat insulation)
Refrigerant pipe
[
6.35
Flared
connection
Stop valve
(with service port)
Stop valve
Compressor
Strainer
Capillary tube
[3.0 ✕[1.6 ✕ 300
Outdoor
heat
exchanger
Distributor
Length : m (ft)
A
15(49)
Gas
[12.7(1/2)
Liquid
[6.35(1/4)
Piping size O.D : mm(in.)
Model
MCF-13NV - E3
Outdoor unit precharged
850
15m
120
8m
15
10m
45
MCF-13NV - E3
Calculation : Xg=15g/mx(A-7)m
Model
Refrigerant piping length (one way)
14m
105
13m
90
11m6012m
75
9m
30
7m
0
MCF-13NV -
Unit:mm
E3
MUCF-13NV -
E3
INDOOR UNIT
MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE
OUTDOOR UNIT
MAX. HEIGHT DIFFERENCE
✽Height difference should be within
5m regardless of which unit,
indoor or outdoor position is high.
A: Refrigerant piping
Max.length
15m(49ft)
ADDITIONAL REFRIGERANT CHARGE (R-22 : g)
5m(16ft)
Max. Height difference
✽
8
8
Air in
Air out
Wet-and dry-bulb
thermometers
FRONT VIEW
Dry-bulb
thermometers
BACK VIEW
PERFORMANCE CURVES
MCF-13NV -
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.
E3
(1) GUARANTEED VOLTAGE
Rated voltage : ±10% (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-bulb temperature difference on the left side of the chart on this page shows the difference between the
indoor intake air wet-bulb temperature and the indoor outlet air wet-bulb temperature for your reference at service.
How to measure the indoor air wet-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 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 the room.
5. Press the EMERGENCY OPERATION switch 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
10.4
9.5
8.7
7.8
7.0
6.2
OUTDOOR UNIT
E3
MCF-13NV-
intake
intake
9
OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
20 25 30
0.3
0.4
0.5
0.6
0.7
0.8
20 25 30
3
4
5
6
7
8
Ambient temperature (:)
Ambient humidity(%)
18
50 60 70
32
(:)
(%)
Ambient temperature (:)
Ambient humidity(%)
18
50 60 70
32
(%)
Outdoor unit current (A)
Outdoor low pressure
7
6
5
4
3
8
(kgf/F•G)(MPa•G)
(:)
220-240V
220-240V
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).
ff
The conversion factor is : 1(MPa • G) =10.2(kgf/
MUCF-13NV -
E3
• G)
10
PERFORMANCE DATA
COOL operation(220V)
MCF-13NV - : MUCF-13NV -
CAPACITY: 3.7 kW INPUT : 1310 W SHF : 0.70
INDOOR INDOOR
DB(:) WB(:)
21 18 4.35 2.26 0.52 1048 4.16 2.16 0.52 1100 4.00 2.08 0.52 1153 3.85 2.00 0.52 1205
21 20 4.53 1.81 0.40 1100 4.35 1.74 0.40 1166 4.22 1.69 0.40 1192 4.07 1.63 0.40 1245
22 18 4.35 2.43 0.56 1048 4.16 2.33 0.56 1100 4.00 2.24 0.56 1153 3.85 2.15 0.56 1205
22 20 4.53 1.99 0.44 1100 4.35 1.91 0.44 1166 4.22 1.86 0.44 1192 4.07 1.79 0.44 1245
22 22 4.72 1.51 0.32 1140 4.55 1.46 0.32 1212 4.44 1.42 0.32 1245 4.26 1.36 0.32 1297
23 18 4.35 2.61 0.60 1048 4.16 2.50 0.60 1100 4.00 2.40 0.60 1153 3.85 2.31 0.60 1205
23 20 4.53 2.18 0.48 1100 4.35 2.09 0.48 1166 4.22 2.02 0.48 1192 4.07 1.95 0.48 1245
23 22 4.72 1.70 0.36 1140 4.55 1.64 0.36 1212 4.44 1.60 0.36 1245 4.26 1.53 0.36 1297
24 18 4.35 2.78 0.64 1048 4.16 2.66 0.64 1100 4.00 2.56 0.64 1153 3.85 2.46 0.64 1205
24 20 4.53 2.36 0.52 1100 4.35 2.26 0.52 1166 4.22 2.19 0.52 1192 4.07 2.12 0.52 1245
24 22 4.72 1.89 0.40 1140 4.55 1.82 0.40 1212 4.44 1.78 0.40 1245 4.26 1.70 0.40 1297
24 24 4.96 1.39 0.28 1192 4.77 1.34 0.28 1258 4.66 1.31 0.28 1297 4.51 1.26 0.28 1362
25 18 4.35 2.96 0.68 1048 4.16 2.83 0.68 1100 4.00 2.72 0.68 1153 3.85 2.62 0.68 1205
25 20 4.53 2.54 0.56 1100 4.35 2.43 0.56 1166 4.22 2.36 0.56 1192 4.07 2.28 0.56 1245
25 22 4.72 2.08 0.44 1140 4.55 2.00 0.44 1212 4.44 1.95 0.44 1245 4.26 1.87 0.44 1297
25 24 4.96 1.59 0.32 1192 4.77 1.53 0.32 1258 4.66 1.49 0.32 1297 4.51 1.44 0.32 1362
26 18 4.35 3.13 0.72 1048 4.16 3.00 0.72 1100 4.00 2.88 0.72 1153 3.85 2.77 0.72 1205
26 20 4.53 2.72 0.60 1100 4.35 2.61 0.60 1166 4.22 2.53 0.60 1192 4.07 2.44 0.60 1245
26 22 4.72 2.26 0.48 1140 4.55 2.18 0.48 1212 4.44 2.13 0.48 1245 4.26 2.04 0.48 1297
26 24 4.96 1.78 0.36 1192 4.77 1.72 0.36 1258 4.66 1.68 0.36 1297 4.51 1.63 0.36 1362
26 26 5.11 1.23 0.24 1258 4.96 1.19 0.24 1323 4.88 1.17 0.24 1362 4.74 1.14 0.24 1402
27 18 4.35 3.30 0.76 1048 4.16 3.16 0.76 1100 4.00 3.04 0.76 1153 3.85 2.92 0.76 1205
27 20 4.53 2.90 0.64 1100 4.35 2.78 0.64 1166 4.22 2.70 0.64 1192 4.07 2.60 0.64 1245
27 22 4.72 2.45 0.52 1140 4.55 2.37 0.52 1212 4.44 2.31 0.52 1245 4.26 2.21 0.52 1297
27 24 4.96 1.98 0.40 1192 4.77 1.91 0.40 1258 4.66 1.86 0.40 1297 4.51 1.81 0.40 1362
27 26 5.11 1.43 0.28 1258 4.96 1.39 0.28 1323 4.88 1.37 0.28 1362 4.74 1.33 0.28 1402
28 18 4.35 3.48 0.80 1048 4.16 3.33 0.80 1100 4.00 3.20 0.80 1153 3.85 3.08 0.80 1205
28 20 4.53 3.08 0.68 1100 4.35 2.96 0.68 1166 4.22 2.87 0.68 1192 4.07 2.77 0.68 1245
28 22 4.72 2.64 0.56 1140 4.55 2.55 0.56 1212 4.44 2.49 0.56 1245 4.26 2.38 0.56 1297
28 24 4.96 2.18 0.44 1192 4.77 2.10 0.44 1258 4.66 2.05 0.44 1297 4.51 1.99 0.44 1362
28 26 5.11 1.63 0.32 1258 4.96 1.59 0.32 1323 4.88 1.56 0.32 1362 4.74 1.52 0.32 1402
29 18 4.35 3.65 0.84 1048 4.16 3.50 0.84 1100 4.00 3.36 0.84 1153 3.85 3.23 0.84 1205
29 20 4.53 3.26 0.72 1100 4.35 3.13 0.72 1166 4.22 3.04 0.72 1192 4.07 2.93 0.72 1245
29 22 4.72 2.83 0.60 1140 4.55 2.73 0.60 1212 4.44 2.66 0.60 1245 4.26 2.55 0.60 1297
29 24 4.96 2.38 0.48 1192 4.77 2.29 0.48 1258 4.66 2.24 0.48 1297 4.51 2.17 0.48 1362
29 26 5.11 1.84 0.36 1258 4.96 1.78 0.36 1323 4.88 1.76 0.36 1362 4.74 1.70 0.36 1402
30 18 4.35 3.83 0.88 1048 4.16 3.66 0.88 1100 4.00 3.52 0.88 1153 3.85 3.39 0.88 1205
30 20 4.53 3.44 0.76 1100 4.35 3.30 0.76 1166 4.22 3.21 0.76 1192 4.07 3.09 0.76 1245
30 22 4.72 3.02 0.64 1140 4.55 2.91 0.64 1212 4.44 2.84 0.64 1245 4.26 2.72 0.64 1297
30 24 4.96 2.58 0.52 1192 4.77 2.48 0.52 1258 4.66 2.42 0.52 1297 4.51 2.35 0.52 1362
30 26 5.11 2.04 0.40 1258 4.96 1.98 0.40 1323 4.88 1.95 0.40 1362 4.74 1.89 0.40 1402
31 18 4.35 4.00 0.92 1048 4.16 3.83 0.92 1100 4.00 3.68 0.92 1153 3.85 3.54 0.92 1205
31 20 4.53 3.63 0.80 1100 4.35 3.48 0.80 1166 4.22 3.37 0.80 1192 4.07 3.26 0.80 1245
31 22 4.72 3.21 0.68 1140 4.55 3.09 0.68 1212 4.44 3.02 0.68 1245 4.26 2.89 0.68 1297
31 24 4.96 2.78 0.56 1192 4.77 2.67 0.56 1258 4.66 2.61 0.56 1297 4.51 2.53 0.56 1362
31 26 5.11 2.25 0.44 1258 4.96 2.18 0.44 1323 4.88 2.15 0.44 1362 4.74 2.08 0.44 1402
32 18 4.35 4.17 0.96 1048 4.16 4.00 0.96 1100 4.00 3.84 0.96 1153 3.85 3.69 0.96 1205
32 20 4.53 3.81 0.84 1100 4.35 3.65 0.84 1166 4.22 3.54 0.84 1192 4.07 3.42 0.84 1245
32 22 4.72 3.40 0.72 1140 4.55 3.28 0.72 1212 4.44 3.20 0.72 1245 4.26 3.06 0.72 1297
32 24 4.96 2.97 0.60 1192 4.77 2.86 0.60 1258 4.66 2.80 0.60 1297 4.51 2.71 0.60 1362
32 26 5.11 2.45 0.48 1258 4.96 2.38 0.48 1323 4.88 2.34 0.48 1362 4.74 2.27 0.48 1402
Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
21 25 27 30
E3E3
OUTDOOR DB(:)
NOTE Q : Total capacity (kW) SHF : Sensible heat factor
SHC : Sensible heat capacity (kW) INPUT : Total power input (W)
11
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