Mitsubishi Electric MCFH-13NV-E3 WH User manual

SERVICE MANUAL
FLOOR AND CEILING TYPE AIR CONDITIONERS
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 ····················16
10. SERVICE FUNCTIONS·····································25
11. TROUBLESHOOTING······································26
12. DISASSEMBLY INSTRUCTIONS·····················35
13. PARTS LIST······················································39
14. OPTIONAL PARTS···········································43
Wireless type
Model
MCFH-13NV- (WH) ·MUCFH-13NV- E3E3
(When installed on the ceiling)
(When installed on the floor)
MCFH-13NV - E3
No. OB240
Refer to the Service Manual OB227 REVISED EDITION-B when MCFH-13NV-is connected
with MXZ-32RV- as multi system units.
E1
E3

2
PART NAMES AND FUNCTIONS
INDOOR UNIT
MCFH-13NV - E3
(When installed on the floor)
(When the air inlet grille is opened.)
Deodorizing filter (gray sponge type)(option)
Air filter
Remote controller
Air inlet
Operation section
Air cleaning filter (white bellows type)(option)
Front panel
Receiving section
Operation indicator lamp
Horizontal vane
Vertical vanes
Emergency operation switch
(When installed on the ceiling)
2
TECHNICAL CHANGES
1
MCFH-13NV - →MCFH-13NV -
1. Indoor model name has changed.
2. MCFH-13NV- became possible to connect with MXZ-32RV- as multi system units.
MUCFH-13NV - →MUCFH-13NV -
1. Outdoor model has changed.
E3E2
E1E3
E3E2

3
RESET
CLOCK
g
Signal transmitting section
Operation display section
OPERATE/STOP
(ON/OFF)button
OPERATION SELECT button
FAN SPEED CONTROL button
ON-TIMER button
CLOCK SET button
HR. button
MIN. button
(TIMER SET button)
TEMPERATURE buttons
VANE CONTROL button
SWING button
OFF-TIMER button
RESET button
MCFH-13NV - E3
OUTDOOR UNIT
MUCFH-13NV - E3
Air inlet
Piping
Drain hose
Air outlet
Drain outlet
(back and side)
REMOTE CONTROLLER

4
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"
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:)
RT61(at 0:)
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:)
Single phase, 220-240V, 50Hz
Cooling
3.7
1.5
6.2-6.4
1,310-1,400
—
96-91
5.54-5.72
2.82-2.64
Heating
4.0
—
5.4-5.8
1,130-1,220
—
95-88
4.74-5.12
3.54-3.28
38
5
46-47
49
1,120-1,260
700-740
1.35
RH-231VHAT
1,100
C-R2.11 C-S3.97
RB4V25-AA or AB
WHT-BLK 182.2 BLK-YLW 68.9
YLW-BLU 47.5 BLU-BRN 31.5
BRN-RED 22.9
RA6V33-CA
WHT-BLK 176 BLK-RED 413
1100
650
180
780
540
255
26
3
1
520 <MS56>
10
10
33.18
780
10
35-38
0.66-0.68
MCFH-13NV- E3 WMCFH-13NV- E3 (INDOOR UNIT)
Single phase, 220-240V, 50Hz
—
—
780
10
0.3
66
—
100-92
—
—
0.30
—
—
—
—
RB4V25-AA or AB
WHT-BLK 182.2 BLK-YLW 68.9
YLW-BLU 47.5 BLU-BRN 31.5
BRN-RED 22.9
—
—
1100
650
180
—
—
—
26
—
5
46-47
—
1120-1260
—
3
—
—
—
10
10
—
Cooling Heating
SPECIFICATION
3
NOTE:Test conditions Cooling : Indoor DB27°C WB19°C Heating : Indoor DB20°C WB
Outdoor DB35°C WB24°C Outdoor DB 7°C WB 6°C
wRefer to the Service Manual OB227 REVISED EDITION-B when MCFH-13NV- is connected with
MXZ-32RV- as multi system units.
E1
E3

5
NOISE CRITERIA CURVES4
MCFH-13NV - E3 MUCFH-13NV - E3
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:\ 
Heating : DB 20: WB -
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
Hi
(220-240V)
NOTCH
46-47
SPL(dB(A)) LINE
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 35: WB 24:
Heating : DB 7: WB 6:
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NOTCH
49
SPL(dB(A)) LINE
Hi
(220-240V)

6
(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
OUTLINES AND DIMENSIONS
5
INDOOR UNIT
MCFH-13NV - E3
MUCFH-13NV - E3
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
Unit : mm
If clearance
behind the outdoor
units only 40B or 50B
side Amust be
fully open.
10cm or more
10cm or more
10cm or more
Outdoor
unit
35cm or more
REQUIRED SPACE
A
40cm or more
OUTDOOR UNIT

7
WIRING DIAGRAM6
NOTE :1. Use copper conductors only.(For field wiring)
2. Symbols below indicate.
/:Terminal block, : Connector
3. “w” shows the terminals with a lock mechanism, so they cannot be removed when you pull
the lead wire.
Be sure to pull the wire by pushing the locking lever (projected part) of the terminal with a finger.
INDOOR UNIT
1Slide the sleeve.
2Pull the wire while
pushing the locking
lever.
SYMBOL
SR141~
SR144
TB
52C
SYMBOL
MV
NR11
RT11
RT12
SYMBOL
C11
F11
HIC1
MF
NAME NAME NAME
INDOOR FAN CAPACITOR
FUSE (3.15A)
DC/DC CONVERTER
INDOOR FAN MOTOR(INNER FUSE)
VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMISTOR
COIL TEMPERATURE THERMISTOR
SOLID STATE RELAY
TERMINAL BLOCK
CONTACTOR
RT11
GRN/YLW
TB
CIRCUIT BREAKER
POWER SUPPLY
~/N 220-240V
50Hz GRN/YLW
3
w
BRN
w
2
N
BLU
w
WHT
w
BLU
TO OUTDOOR
UNIT
CONNECTING
AUTO RESTART
ASSY
P.C.BOARD
RECEIVER
DISP/
CN
104 CN 151
CN201
CN
113
CN
101
N
L
5
TRANS
HIC1
MV6
6
5
5
3
P.C.BOARD
NR11
52C
F11
w
4
3
w
2
1
4
SW/THERMO
LDFH
LDFL
SR144
SR142
SR143 LDFM
BLK
BLU
YLW
SR141 LDFVL BRN
LDCOM
LDC11
LDC12
WHT
22
ELECTRONIC CONTROL P.C. BOARD
C11 RED
ORN
CN
112
wRED
YLW
BLU
BLK
BRN
GRN/YLW
WHT
ORN
RED
RT12
MF
220-240V~
12V DC
5
6
4
8
1
2
3
7
N
2
12VDC
REMOTE
CONTROLLER
FOR MULTI SYSTEM
TO OUTDOOR
UNIT
CONNECTING 3
PE
W
WW
W
W
W
220-240V~
12V DC
3
4
WHT
BLK
RED
MF
N4
3
2
1
RT61
CN730
F61 SR61
GRN/YLW
3
R
C
WHT
RED
BLK
BLU C1
52C
MC
21S4
1
BLK BLK
CN721
X62
C65
TAB20
CN661
BLU
CN711
DEICER P.C. BOARD
RED
DSAR
TB
FROM INDOOR UNIT
CONNECTING
2
IC881
TRANS
X62
NR61
WHT
WHT
OUTDOOR UNIT
MCFH-13NV - E3
MUCFH-13NV - E3 MODEL WIRING DIAGRAM
MODEL WIRING DIAGRAM
SYMBOL
TB
X62
21S4
52C
SYMBOL
MC
MF
NR61
RT61
SR61
SYMBOL
C1
C65
DSAR
F61
IC881
NAME NAME NAME
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE(2A)
DC/DC CONVERTER
COMPRESSOR(INNER THERMOSTAT)
OUTDOOR FAN MOTOR(INNER THERMOSTAT)
VARISTOR
DEFROST THERMISTOR
SOLID STATE RELAY
TERMINAL BLOCK
REVERSING VALVE COIL RELAY
REVERSING VALVE COIL
CONTACTOR
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

8
REFRIGERANT SYSTEM DIAGRAM
7
Indoor
heat
exchanger
Outdoor
heat
exchanger
Distributor Flared connection
Room temperature
thermistor
RT11
Coil temperature
thermistor
RT12
Defrost
thermistor
RT61
Flared connection
Stop valve
Stop valve
(with service port)
Strainer Capillary tube [3.0 o[1.8 o200
Capillary tube
[3.0 o [1.4 o500o2
Refrigerant flow in cooling
Compressor
Accumulator
Strainer
Muffler
Reversing valve
Refrigerant flow in heating
Refrigerant pipe [12.7
(Option)
(with heat insulator)
Refrigerant pipe
(Option) [6.35
(with heat insulator)
INDOOR UNIT OUTDOOR UNIT
MCFH-13NV - E3 MUCFH-13NV - E3
Length : m (ft)
A
15(49) Gas
[12.7(1/2) Liquid [6.35(1/4)
Piping size O.D : mm(in.)
Model
MCFH-13NV - E3
A: Refrigerant piping
Max.length
15m(49ft)
✽
Max. Height difference
5m(16ft)
✽Height difference should be within
5m regardless of which unit,
indoor or outdoor position is high.
Outdoor unit precharged
1,350
15m
400
8m
50 10m 150
MCFH-13NV - E3
Calculation : Xg=50g/mx(A-7)m
Model Refrigerant piping length (one way)
14m
350
13m
300
11m
200 12m 250
9m
100
7m
0
MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE
ADDITIONAL REFRIGERANT CHARGE (R-22 : g)
MAX. HEIGHT DIFFERENCE

9
PERFORMANCE CURVES
8
The standard data contained in these specifications apply only to the operation of the air conditioner under normal condition,
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
Rated voltage : ±10% (198~264V), 50Hz
(2) AIR FLOW
Air flow should be set at MAX.
(3) MAIN READINGS
COOLING
(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.
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 the 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.
Air in
Air out Wet-and dry-bulb
thermometers
FRONT VIEW
Wet-and dry-bulb
thermometers
BACK VIEW
INDOOR UNIT OUTDOOR UNIT
9.3
8.6
7.8
7.1
6.3
5.6
MCFH-13NV- E3
20.1
18.6
17.0
15.5
13.9
12.4
10.8
9.3
MCFH-13NV- E3
HEATING
(1) Indoor intake air dry-bulb temperature : ˚CDB
(2) Indoor outlet air dry-bulb temperature : ˚CDB
(3) Outdoor intake air wet-bulb temperature : ˚CWB
(4) Total input : W
MCFH-13NV - E3

10
Dry Bulb temperature (˚C)
20
25
30
Relative humidity (%)
50
60
70
OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
COOL operation
1Both indoor and outdoor units are under the same temperature/humidity condition.
2Air flow should be set at MAX.
3The unit of pressure has been changed to MPa on the international system of units(SI unit system).
The conversion factor is : 1(MPa • G) =10.2(kgf/ff• G)
18 32
50 60 70 (%)
Ambient temperature (:) / Ambient humidity (%)
Outdoor low pressure
50 60 70 (%)
Ambient temperature (:) / Ambient humidity (%)
Outdoor unit current (A)
Ambient temperature (:)
Outdoor unit current (A)
HEAT operation
Condition Indoor : Dry bulb temerature 20.0:
Wet bulb temerature 14.5:Outdoor : Dry bulb temerature 7,15,20:
Wet bulb temerature 6,12,14.5:
(MPa•G)
(kgf/F• G)
15 20 25 30 35(:)
0.3
0.4
0.5
0.6
0.7
0.8
15 20 25 30 35(:)
3
4
5
6
7
8
5 7 10 15 20 25(:)
3
4
5
6
7
8
220-240V 220-240V
240V
220V
18 32
7
8
5
6
4
3
MUCFH-13NV - E3