Mitsubishi Electric MS-C18TV-E1 WH User manual

SERVICE MANUAL
SPLIT-TYPE AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGES ····································3
2. PART NAMES AND FUNCTIONS······················5
3. SPECIFICATION·················································7
4. NOISE CRITERIA CURVES·······························8
5. OUTLINES AND DIMENSIONS ·························9
6. WIRING DIAGRAM ··········································10
7. REFRIGERANT SYSTEM DIAGRAM··············12
8. PERFORMANCE CURVES······························14
9. MICROPROCESSOR CONTROL ····················20
10. SERVICE FUNCTIONS·····································27
11. TROUBLESHOOTING······································29
12. DISASSEMBLY INSTRUCTIONS·····················37
13. PARTS LIST······················································43
14. OPTIONAL PARTS···········································46
Wireless type
Models
MS-C18TV - (WH) · MU-C18TV -
MS-C24TV - (WH) · MU-C24TV - E1E1
E1E1
No. OB273
MS-C18TV -
MS-C24TV - E1
E1
HFC
utilized
R407C
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3
New Specification Previous Specification
The incompatible lubricant easily separates from refrigerant
and makes the layer in the upper inside the suction muffler.
The higher position of the returning oil hole enables to return
the lubricant of the upper layer to the compressor.
Since refrigerant and lubricant are compatible each other,
lubricant returns to the compressor through the lower
position returning oil hole.
Compressor
Suction muffler
Returning oil hole
Lubricant
Refrigerant
Compressor
Suction muffler
Returning oil hole
Lubricant and 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])
R407C
R22
Conversion chart of refrigerant temperature and pressure
Saturated liquid pressure
(:)
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])
Lubricant
Refrigerant
New refrigerant
R407C
R32: R125: R134a (23%:25%:52%)
Non-azeotropic refrigerant
Not included
A1/A1
86.2
-43.6
0.9177
42.5
Non combustible
0
1530
From liquid phase in cylinder
Impossible
Incompatible oil
Non
Non
Previous refrigerant
R22
HCFC22 (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 [Gauge])
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 CFC11
w2 :Global Warmth Parameter : based on CO2
INFORMATION FOR THE AIR CONDITIONER WITH R-407C REFRIGERANT
This room air conditioner adopts HFC refrigerant (R407C) which will never destroy the ozone layer.
Pay attention to following points.
1Take sufficient care not to allow water and other contaminations to enter the R407C refrigerant during storage and
installation, since it is more susceptible to contaminations than HCFC (R22) refrigerant.
2Clean refrigerant pipings should be used.
3Composition change may occur in R407C since it is a mixed refrigerant. When charging, charge liquid refrigerant to
prevent composition change.
4Be especially careful when managing the tools.
If dust, dirt, or water mixes in the refrigerant cycle, it may cause decrease of performance.
TECHNICAL CHANGES
1
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4
Electronic scale for
refrigerant charging
Refrigerant
gas cylinder
operating
valve
Refrigerant gas cylinder
for R407C with siphon
Refrigerant (liquid)
Gage manifold
Outdoor unit
Indoor unit
Union
Liquid pipe
Gas pipe
Service port
Stop valve
Charge hose
1.Tools dedicated for the air conditioner with R407C refrigerant
The following tools are required for R407C refrigerant. Some R22 tools can be substituted for R407C tools.
Do not use tools that are used with R22 refrigerant in order to avoid mixing oils.
R407C tools Can R22 tools be used?
Gas leak detector
A gauge manifold with a sight glass is recommended for charging the
liquid refregerant.
Hose material have been changed to improve the pressure
resistance.
Dedicated for HFC refrigerant.
Description
Provided to prevent the back flow of oil. This adapter enables you to use
existing vacuum pumps.
No
No
No
Yes
Yes
New
New
Gauge manifold
Charge hose
Torque wrench
Flare tool
Vacuum pump
adapter
Electronic scale for
refrigerant charging Use the electronic control scale for measuring the R407C.
2.Refrigerant piping
Do not use copper pipes which are broken, deformed or discoloured.
In addition, be sure that the inner surfaces of the pipes are clean, free of hazardous sulfur and oxides, or have no dust/ dirt,
shaving particles, oil, moisture or any other contamination.
•If there is a large amount of residual oil inside the piping and joints, deterioration of the refrigerant oil will result.
3.Refrigerant oil
Apply the specific refrigeration oil (accessories) to the flare and the union seat surfaces.
4.Air purge
Use the vacuum pump for air purge to protect environments, and to avoid changing the composition of refrigerant.
5.Additional charge
For additional charging, charge the refrigerant with liquid phase slowly using a gas cylinder. If the refrigerant is charged with
gas phase, the composition of refrigerant will change. In this case, ability of the refrigerating cycle decreases or normal
operation can be impossible.
If liquid refrigerant is rapidly charged at once, the compressor may be locked.
NOTE: 1. The R407C is mixed refrigerant which consist of three different kinds of evaporative temperature. As a result, the
R407C occurs the change of composition.
2. Additional refrigerant charge has been changed by change of refrigerant.(R22 ➔R407C)
R22 : <MU-type> 15g/m ➔R407C : <MU-C18/C24TV> 20g/m
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5
PART NAMES AND FUNCTIONS
2
INDOOR UNIT
Remote control
receiving section
Air cleaning filter(option)
Deodorizing filter(option)
Front panel
Grille
(When the grille is open)
MS-C18TV -
MS-C24TV - E1
E1
ACCESSORIES
MS-C18TV -
MS-C24TV - E1
E1
1
5
1
2
2
1
1
1
1
2
3
4
5
6
7
8
Installation plate
Installation plate fixing screw 4 x 25 mm
Remote controller mounting hardware
Fixing screw for 33.5 x 16 mm (Black)
Battery (AAA) for remote controller
Wireless remote controller
Felt tape (Used for left or left-rear piping)
Refrigeration oil
OUTDOOR UNIT
MU-C18TV -
MU-C24TV - E1
E1
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6
REMOTE CONTROLLER
ON/OFF
TOO
COOL
PM
AM
TOO
WARM
ON/OFF
FAN
TOO
WARM TOO COOL
VANE
MODE
ECONO COOL
STOP
START
HR.
MIN.
I FEEL COOL
DRY
PM
CLOCK
AM
RESET CLOCK
FAN
Open the front lid.
Signal transmitting section
Operation display section
OPERATE /STOP
(ON /OFF)button
TEMPERATURE buttons
OPERATION SELECT button
FAN SPEED CONTROL button OFF-TIMER button
HR. button
MIN. button
(TIME SET button)
ON-TIMER button
RESET button
ECONO COOL button
VANE CONTROL button
CLOCK SET button
MS-C18TV -
MS-C24TV - E1
E1
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7
SPECIFICATION
3
Indoor model
Function
Power supply
Capacity
Dehumidification
Air flow(High)
Power outlet
Running current
Power input
Auxiliary heater
Power factor
Starting current
Fan motor current
Model
Winding
resistance(at20:)
Dimensions WOHOD
Weight
Air direction
Sound level (High)
Fan speed (High)
Fan speed regulator
Thermistor RT11(at25:)
Thermistor RT12(at25:)
Outdoor model
Air flow
Compressor motor current
Fan motor current
Model
Output
Winding
resistance(at20:)
Model
Winding
resistance(at20:)
Dimensions WOHOD
Weight
Sound level(High)
Fan speed(High)
Fan speed regulator
Refrigerant filling
capacity(R407C)
Refrigerating oil (Model)
kW
R/h
K/h
A
A
W
A(kW)
%
A
A
"
mm
kg
dB
rpm
k"
k"
K/h
A
A
W
"
"
mm
kg
dB
rpm
kg
cc
Cooling
Single phase
230V, 50Hz
—
WHT-BLK 183.8
BLK-RED 250.5
1,015O320O190
14
5
3
10
10
850o605o290
1100 (NEO22)
MS-C24TV - E1
6.4
3.1
816
25
12.7
2,840
97
84
0.29
2.25
RA4V27-EE
45
1,260
MU-C24TV - E1
11.86
0.55
NE-47VMHHT
2,200
C-R 0.67
C-S 2.02
RA6V60-AC
WHT-BLK 81.1 BLK-RED 102.2
BLK-YLW 92.2
61
53
873
2
1.85
MS-C18TV - E1
5.1
2.4
756
15
9.3
2,100
98
50
0.25
2.43
RA4V27-EF
42
1,180
MU-C18TV - E1
2370
8.66
0.39
PE-33VPEHT
1,500
C-R 1.08
C-S 2.18
RA6V50-OG
WHT-BLK 116.4
BLK-RED 111.0
48
52
845
1
1.10
Electrical data
Fan motor
Special remarks
Compressor
Electrical data
Fan motor
Special remarks
Capacity
Coefficient of performance(C.O.P)
Capacity
Cooling
Single phase
230V, 50Hz
—
WHT-BLK 183.8
BLK-RED 250.5
1,015O320O190
14
5
3
10
10
2322
850o605o290
1400 (NEO22)
NOTE: Test conditions are based on JIS C 9612.
Cooling : Indoor DB 27°C / WB 19°C
Outdoor DB 35°C / WB 24°C
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8
NOISE CRITERIA CURVES
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
Test conditions,
Cooling : Dry-bulb temperature 27:Wet-bulb temperature 19:
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
42
SPL(dB(A)) LINE
NOTCH
High
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 27:Wet-bulb temperature 19:
45
SPL(dB(A)) LINE
NOTCH
High
MS-C18TV - E1
MS-C24TV - E1
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:
52
SPL(dB(A)) LINE
NOTCH
High
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
NOTCH
High
MU-C18TV - E1
MU-C24TV - E1
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9
OUTLINES AND DIMENSIONS
5
MS-C18TV -
MS-C24TV - E1
E1
MU-C18TV -
MU-C24TV - E1
E1
OUTDOOR UNIT
INDOOR UNIT
3 297
450
450
352438
254
20
60
40
150 648 217
5190
995
19077550
320
1015
4holes 11✕20 Indoor unit
Installation plate
Power supply cord
Lead to right 2m
Lead to left 1m
Wall hole [75
Installation plate
Liquid line [8-0.5m
Gas line [12-0.43m
Insulation [50 O.D
[28 I.D
Insulation [28
Drain hose [16
Air out
{
Air in
Wireless remote controller
162
19
58
100mm or more
100mm or more
100mm or more
500mm or more
350mm or more
Drainage
3holes [33 Air out
Air in
Air in
Service panel
Liquid refrigerant
pipe joint
Refregerant pipe
(flared) [6.35(MU-C18TV)
[9.52(MU-C24TV)
Gas refregerant
pipe joint
Refregerant pipe
(flared) [15.88
35-
30-
30
100
161
157
74
850
500
183
20 292
605 248
35
350
50
290 310 345
20
355
90
Drainage
hole [16.2
Unit : mm
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10
WIRING DIAGRAM
6
MU-C18TV - E1
MODEL WIRING DIAGRAM
OUTDOOR UNIT
SYMBOL
C1
C2
SYMBOL
F
MC
SYMBOL
MF
TB
NAME NAME NAME
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR FUSE(2A)
COMPRESSOR(INNER PROTECTOR)
OUTDOOR FAN MOTOR(INNER PROTECTOR)
TERMINAL BLOCK
MS-C18TV - E1
MODEL WIRING DIAGRAM
INDOOR UNIT
SYMBOL
RT12
TB
52C
SYMBOL
IC141
MF
MV
NR11
RT11
SYMBOL
C11
DSAR
F11
F12
HIC1
NAME NAME NAME
INDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE(3.15A)
THERMAL FUSE(93°C)
DC / DC CONVERTER
HYBRID IC
INDOOR FAN MOTOR(INNER FUSE)
VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMISTOR
INDOOR COIL THERMISTOR
TERMINAL BLOCK
CONTACTOR
MF
BLK
WHT
RED
ORN
N
230V~
BLU 4
BLU
WHT
BLK
RED
C1
TB
WHT
ORN
F
C2 RED
WHT
1
2
3
GRN/YLW
FROM INDOOR UNIT CONNECTING
C
SR
MC
2
CIRCUIT BREAKER
50Hz
230V~
BRN
DSAR
GRN/YLW
LD1
REMOTE
CONTROLLER
3
1
DISPLAY
P.C. BOARD
101
CN
102
CN 151
CN
BLU
RECEIVER
P.C. BOARD
MV
5
F11
33
BLU
~/N 230V
CORD
POWER
SUPPLY
TO OUTDOOR
UNIT
CONNECTING
BRN
L
N
GRN/YLW
TB
52C
BRN
24
3
CN201
1
2
F12
WHT
BLU
BLU
BLU
TRANS
HIC1
111
CN
4
2
1
C11
CN211
BLK
WHT
GRY
RED
RT11
MF
3
121
CN
CN
112
NR11
IC141 RT12
YLW
BRN
ELECTRONIC CONTROL P.C. BOARD
PE
NOTE:1. About the outdoor side 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
NOTE: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, : Connector
VG79B066H01
SG79B965H01
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