Mitsubishi Electric MS-18RV-E1 User manual

SERVICE MANUAL
SPLIT-TYPE AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················3
3. SPECIFICATION·················································6
4. NOISE CRITERIA CURVES·······························8
5. OUTLINES AND DIMENSIONS ·······················10
6. WIRING DIAGRAM ··········································13
7. REFRIGERANT SYSTEM DIAGRAM··············17
8. PERFORMANCE CURVES······························20
9. MICROPROCESSOR CONTROL ····················34
10. SERVICE FUNCTIONS·····································45
11. TROUBLESHOOTING······································47
12. DISASSEMBLY INSTRUCTIONS·····················61
13. PARTS LIST······················································69
14. OPTIONAL PARTS ······················BACK COVER
Wireless type
Models
MS-18RV - (WH) · MU-18RV -
MS-24RV - (WH) · MU-24RV -
MS-30RV - (WH) · MU-30RV - E1E1
E1E1
E1E1
No. OB271
MS-18RV -
MS-24RV - E1
E1
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2
TECHNICAL CHANGES
MS-18NV - ➔MS-18RV -
MS-24NV - ➔MS-24RV -
1. Remote controller has been changed.
• SLEEP MODE function has removed.
• ECONO COOL operation has added.
• SWING button is removed, but SWING MODE function is available by VANE CONTROL button.
MS-30RV -
New model
MU-18NV - ➔MU-18RV -
MU-24NV - ➔MU-24RV -
1. Outdoor model name has changed.
MU-30RV -
New model
E1
E1E2
E1E4
E1
E1E2
E1E4
1
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3
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)
Operation Indicator
MS-18RV -
MS-24RV - E1
E1
OUTDOOR UNIT
MU-18RV -
MU-24RV - E1
E1
MS-18RV -
MS-24RV - E1
E1 MS-18RV -
MS-24RV - E1
E1
MS-30RV - E1 MS-30RV - E1
MU-30RV - E1
MS-30RV - E1
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4
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-18RV -
MS-24RV - E1
E1
ACCESSORIES
Indoor unit
1
2
3
4
5
6
7
Installation plate
Installation plate fixing screw 4 o25 mm
Remote controller mouting hardware
Fixing screw for 3o3.5 o1.6 mm (Black)
Battery (AAA) for remote controller
Wireless remote controller
Felt tape (Used for left or left-rear piping)
1
7
1
2
2
1
1
1
6
1
2
2
1
1
MS-18RV-
MS-24RV- E1 MS-30RV- E1
E1
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5
REMOTE CONTROLLER
MS-30RV - E1
ON/OFF
TOO
COOL
PM
AM
TOO
WARM
ON/OFF
FAN
TOO
WARM TOO COOL
VANE
MODE
ECONO COOL
STOP
START
HR.
MIN.
WIDE VANE
LONG
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 button
(Horizontal vane button)
CLOCK SET button
LONG button
WIDE VANE button
(Vertical vane button)
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6
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(R22)
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
220-240V, 50Hz
—
WHT-BLK 183.8
BLK-RED 250.5
1,015O320O190
14
5
3
10
10
850o605o290
900 (MS32N1)
MS-24RV - E1
6.4
3.4
816
25
12.9-12.6
2,780-2,900
98-96
59
0.29
2.30-2.21
RA4V27-EE
45
1,260
MU-24RV - E1
2,286-2,358
12.06-11.76
0.55
NH-47VMDT
2,200
C-R 0.96
C-S 2.07
RA6V60-AC
WHT-BLK 81.1 BLK-RED 102.2
BLK-YLW 92.2
61
53
860-886
2
2.15
MS-18RV - E1
5.1
2.5
756
15
9.1
1,910-2,010
95-92
51-55
0.25
2.67-2.54
RA4V27-EF
42
1,180
MU-18RV - E1
2,340-2,400
8.46
0.39
PH-33VPET
1,500
C-R 1.08
C-S 2.18
RA6V50-OG
WHT-BLK 116.4
BLK-RED 111.0
48
52
830-860
1
1.05
Electrical data
Fan motor
Special remarks
Compressor
Electrical data
Fan motor
Special remarks
Capacity
Coefficient of performance(C.O.P)
Capacity
Cooling
Single phase
220-240V, 50Hz
—
WHT-BLK 183.8
BLK-RED 250.5
1,015O320O190
14
5
3
10
10
850o605o290
1,200 (MS32N1)
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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7
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:)
Thermistor RT13(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(R22)
Refrigerating oil (Model)
Thermistor RT62(at25:)
Thermistor RT63(at0:)
kW
R/h
K/h
A
A
W
A(kW)
%
A
A
"
mm
kg
dB
rpm
k"
k"
k"
K/h
A
A
W
"
"
mm
kg
dB
rpm
kg
cc
k"
k"
MS-30RV - E1
Single phase
220-240V, 50Hz
25
—
98-93
0.33-0.35
RC4V40-AA
WHT-BLK 138.2
BLK-RED 159.0
1,100O325O227
16
5
47
1,280
3
10
10
10
MU-30RV - E1
0.56-0.58
NH-56VNHT
2,700
C-R 0.66
C-S 1.58
RA6V75-AA
WHT-BLK 62.8 BLK-YLW 55.9
YLW-RED 26.0
870o850o295
78
55
790-820
2
2.40
1,200 (MS32N1)
231.44
33.18
Cooling
8.4
4.5
960
15.7-15.8
3,380-3,520
82-84
2.49-2.39
2,880-3,000
14.81-14.87
Electrical data
Fan motor
Special remarks
Compressor
Electrical data
Fan motor
Special remarks
Capacity
Coefficient of performance(C.O.P)
Capacity
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-18RV - E1 MS-24RV - 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-18RV - E1 MU-24RV - E1
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9
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
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
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
47
SPL(dB(A)) LINE
NOTCH
High
MS-30RV - 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:
55
SPL(dB(A)) LINE
NOTCH
High
MU-30RV - E1
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10
OUTLINES AND DIMENSIONS
5
MS-18RV -
MS-24RV - E1
E1
MU-18RV -
MU-24RV - E1
E1
OUTDOOR UNIT
INDOOR UNIT
3 297
450
450
352438
254
20
60
40
150 648 217
5190
995
19077550
320
1015
19
162
58
4holes 11o20 Indoor unit
Installation plate
Wireless remote controller
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
REQUIRED SPACE
100mm or more
100mm or more
500mm or more
100mm or more
350mm or more
[9.52(MU-24RV)
[6.35(MU18RV)
Drainage
hole {16.2
Drainage
3holes {33
Air in
Air in
Air out
355
248
605
29220
290
157
100 310
345
90 35
350 20
30
74
183
500
850
161
Service panel
Liquid refrigerant
pipe joint
Gas refrigerant
pipe joint
Refrigerant pipe
(flared) {15.88
Refrigerant pipe
(flared)
30°
35°
50
Unit : mm
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11
162
19
58
47
7.5315
255.547
2.5
98 173
98 173414.5 414.5
5225
253
791
56
1068
1100
325
Air out
Air in
Insulation [28
Drain hose [16
(Connected part O.D)
{
Liquid line [9.52-0.5m
Gas line [19-0.43m
Insulation [50 O.D
[32 I.D
Installation plate
Wall hole [75
Wireless remote controller
Installation plate Indoor unit
MS-30RV - E1
INDOOR UNIT Unit: mm
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12
100 10
1000For 10 units or less
200
Outdoor Unit-Necessary surrounding clearance
(Concentrated installation) The upper side must be open.
Outdoor Unit-Necessary surrounding clearance
200
10
10
10Note:Allow adequate
upper clearance
150
500
500 Service space
Front opening
R20
R20
25 max.
Standard bolt length
65
Front right piping holes-
detail figures
80
17
12
R6
23 33
Side air intake
724295
Outlet guide
installation hole
302
Air intake
Air intake
Air outlet
870
185 185
500
330 362 1715 39.5 27.5
Terminal block for indoor and outdoor unit connection
Terminal block for power line
Handle for moving
179 524
441
445
450
468
553850
40 60524
Service panel
Refrigerant-pipe flared
connection [15.88
Refrigerant-pipe flared
connection [9.52
Knock out hole
for front piping
(refrigerant,drainage
and wiring)
42 45
104 33
Bottom
piping hole
2-U-shaped
notched
holes
Drain hole [33
Drain hole [33
2-12o23 Oval holes
(standard bolt M10)
Handle for moving
A
Handle
for moving
138
95 Rear piping hole
Rear fresh
air intake
A
Knock out hole
for right piping
(refrigerant,drainage
and wiring)
60
120
4553
Knock out holes for
power line 2-[27
MU-30RV - E1
OUTDOOR UNIT
Unit: mm
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13
WIRING DIAGRAM
6
MU-18RV - 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-18RV - 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
220-240V~
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
220-240V~
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 220-240V
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
VG79B019H01
SG79J002H01
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14
MS-24RV - E1
MU-24RV - E1
MODEL WIRING DIAGRAM
MODEL WIRING DIAGRAM
INDOOR UNIT
OUTDOOR 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
SYMBOL
CR
C1
C2
F
SYMBOL
MC
MF
TB
TB2
SYMBOL
X1
26F1
52C
NAME NAME NAME
CR SURGE ABSORBER
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
FUSE(2A)
COMPRESSOR (INNER PROTECTOR)
OUTDOOR FAN MOTOR (INNER PROTECTOR)
TERMINAL BLOCK
TERMINAL BLOCK
FAN MOTOR RELAY
THERMOSTAT (AIR FLOW CONTORL)
COMPRESSOR CONTACTOR
220-240V~
WHT
RED
1
TB2
A2/b
FREDRED
A1/a
52C
BLU
3
N
2
123456
CR
26F1 X1
C2
MC
52C
TB
GRN/YLW
RED GRY
RED
WHT WHT
BLK
REDBLU
BLU
RED
ORN WHT
BLK YLW
78
21
BLU
3
5
61
FROM INDOOR UNIT CONNECTING
X1
MF
RED
ORN
WHT YLW BLK
C
S
R
C1
220-240V~
BLU
BLU
BRN
BLU F12 2
1
CN201
3
4BRN
YLW
BLU
TB
GRN/YLW
3RED
TO OUTDOOR
UNIT
CONNECTING
CN
121 3
MF
BLU
F11
RT11
RED
GRY
WHT
BLK
WHT CN211
C11
1
2
4
CN
111
1
3
DSAR
WHT WHT
1
TRANS
NR11
HIC1 CN
112
IC141 RT12
52C
N
L
220-240V~
220-240V~ 2
ELECTRONIC CONTROL P.C. BOARD
3MV
DISPLAY
P.C. BOARD RECEIVER
P.C. BOARD
3
REMOTE
CONTROLLER
LD1 CN
151
CN
102 CN
101
GRN/YLW
5
CIRCUIT BREAKER
PE
POWER
SUPPLY
CORD
~/N 220-240V
50Hz
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
VG79B020H01
SG79J003H01
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15
INDOOR UNIT
TB
TAB12
33
REMOTE
CONTROLLER
RECEIVER
P.C.BOARD
DISPLAY
P.C.BOARD
102
CN 101 CN
RED
BLU
MV2
GRN/YLW
TO OUTDOOR
UNIT
CONNECTING
12V CN201
3
2
1
BRN
L
N
3
220-240V~F11
ELECTRONIC CONTROL P.C. BOARD
NR11
CN211
CN
111 RT11
RT12
15
MV2
CN
151
CN112
1
2
3
4RT13
MV1
TRANS
HIC1
C11
121
CN
1
3
4
SR141
3
MF
RED
WHT
BRN
YLW
GRY
BLK
SYMBOL
SR141
TB
SYMBOL
MV2
NR11
RT11
RT12
RT13
SYMBOL
C11
F11
HIC1
MF
MV1
NAME NAME NAME
INDOOR FAN CAPACITOR
FUSE(3.15A)
DC/DC CONVERTER
INDOOR FAN MOTOR(INNER PROTECTOR)
VANE MOTOR(HORIZONTAL)
VANE MOTOR(VERTICAL)
VARISTOR
ROOM TEMPERATURE THERMISTOR
INDOOR COIL THERMISTOR (MAIN)
INDOOR COIL THERMISTOR (SUB)
SOLID STATE RELAY
TERMINAL BLOCK
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
SG79J148H01
MS-30RV - E1 MODEL WIRING DIAGRAM
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16
OUTDOOR UNIT
DEICER P.C. BOARD
L
PE
YLW BLK WHT
CIRCUIT BREAKER
152C 2
CZ WHTWHT
RED C2
ORN
CN730
220-240V~
N
12V 3
L
N
A2 A1
WHT
BLU 52C
DSAR
TB1
TO INDOOR UNIT CONNECTING
WHT
C1 RED
BLK
S
C
R
MC
WHT BLU RED
NR61
5
3
BLU
T61
TB2
GRN/YLW
POWER SUPPLY
~ /N 220-240V
50Hz
X52
BLU WHT BLU
BRN
SR62
SR61
COM NO
F61
TAB52
X52
1
CN711CN724
CN662
6
MF
RT62 RT63
123
YLW
21
BLK
WHT ORN
RED
3456
LEV
SYMBOL
TB2
T61
X52
52C
SYMBOL
MF
NR61
RT62
RT63
SR61
SR62
TB1
SYMBOL
CZ
C1
C2
DSAR
F61
LEV
MC
NAME NAME NAME
CZ SURGE ABSORBER
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE(3.15A)
EXPANSION VALVE COIL
COMPRESSOR (INNER PROTECTOR)
OUTDOOR FAN MOTOR (INNER PROTECTOR)
VARISTOR
DISCHARGE TEMPERATURE THERMISTOR
AMBIENT TEMPERATURE THERMISTOR
SOLID STATE RELAY
SOLID STATE RELAY
TERMINAL BLOCK
TERMINAL BLOCK
TRANSFORMER
CONTACTOR
COMPRESSOR CONTACTOR
NOTE 1. Use copper conductors only (For field wiring).
2. Since the indoor and outdoor unit connecting wires have polarity, connect them according to the numbers (3,N, L).
3. Symbols below indicate.
/: Terminal block, : Connector
MU-30RV - MODEL WIRING DIAGRAM
E1
SG79J153H02
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17
REFRIGERANT SYSTEM DIAGRAM
7
MS-18RV - E1 MU-18RV - E1
INDOOR UNIT OUTDOOR UNIT
Indoor
heat
exchanger
Room temperature
thermistor
RT11
Refrigerant pipe [15.88
(with heat insulator)
Flared
connection
Indoor coil
thermistor
RT12
Refrigerant pipe [6.35
(with heat insulator)
Stop valve Capillary tube
[3.0X[2.0X700
Compressor
Accumulator
Stop valve
(with service port) Outdoor
heat
exchanger
Refrigerant flow in cooling
Strainer
Unit:mm
Distributor
Unit:mm
MS-24RV - E1 MU-24RV - E1
INDOOR UNIT OUTDOOR UNIT
Indoor
heat
exchanger
Room temperature
thermistor
RT11
Refrigerant pipe [15.88
(with heat insulator)
Flared
connection
Indoor coil
thermistor
RT12
Refrigerant pipe 9.52
(with heat insulator)
Stop valve
Capillary tube [3.0X[2.0X700
Compressor
Accumulator
Stop valve
(with service port) Outdoor
heat
exchanger
Refrigerant flow in cooling
Strainer
Distributor
Capillary tube
[3.0X[1.6X350
Discharge
Pressure
Regulator
open 26kgf/F
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18
Indoor
heat
exchanger
Outdoor
heat
exchanger
Flared connection
Room temperature
thermistor
RT11
Indoor coil
thermistor
RT13(sub)
Discharge
temperature
thermistor
RT62
Flared connection
Stop valve
Stop valve
(with service port)
Capillary tube
[3.6✕[2.4✕50 Refrigerant flow in cooling
Compressor
Refrigerant pipe [15.88
(with heat insulator)
Refrigerant pipe [9.52
(with heat insulator)
Indoor coil
thermistor
RT12(main)
LEV
Strainer
Strainer
Accumulator
Ambient
temperature
thermistor
RT63
Strainer
Capillary tube
[4.0✕[2.4✕200
(Upper path) Capillary tube
[4.0✕[2.4✕100
(Lower path)
MS-30RV - E1
INDOOR UNIT OUTDOOR UNIT
Unit:mm
MU-30RV - E1
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19
Indoor
unit
wMax. Height
difference 5m
(MS-18/24RV)
/15m(MS-30RV)
wHeight difference should be within 5m(MS-18/24RV) /15m(MS-30RV)
regardless of which unit, indoor or outdoor position is high.
Outdoor unit
Refrigerant Piping
Max.length
A
Model Outdoor unit precharged
1,050
2,150
Refrigerant piping length (one way)
15m
120
7m
0
10m
45
MS-18RV - E1
MU-18RV - E1
MS-24RV - E1
MU-24RV - E1
MAX. HEIGHT DIFFERENCE
ADDITIONAL REFRIGERANT CHARGE(R22 : g)
Model Refrigerant piping
Max. length : m
A
Piping size O.D : mm Length of connecting pipe : m
Indoor unit
Gas 0.43
Liquid 0.5
Gas
15.88
Liquid
6.35
9.52
Outdoor unit
Gas 0
Liquid 0
MS-18RV - E1
MU-18RV - E1
MS-24RV - E1
MU-24RV - E1
15
30
MS-30RV - E1
MU-30RV - E1
MAX. REFRIGERANT PIPING LENGTH
Calculation : Xg=15g/mx(Refrigerant piping length (m)-7)
Outdoor unit
precharged
045 120
Refrigerant piping length (one way)
15m10m7m
Model
2,400
20m 25m 30m
195 345270
MS-30RV - E1
MU-30RV - E1
Calculation : Xg=15g/mo(Refrigerant piping length(m)-7)
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20
MS-18RV - E1 MS-24RV - E1
14.9
13.5
12.2
11.0
9.8
8.6
MS-30RV - E1
18.9
17.1
15.4
13.7
12.2
10.7
PERFORMANCE CURVES
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
(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.
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 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.
8
}
Cooling
MS-18RV - MU-18RV -
MS-24RV - MU-24RV -
MS-30RV - MU-30RV - E1E1
E1E1
E1E1
INDOOR UNIT OUTDOOR UNIT
Wet-and dry-bulb
thermometers Wet-and dry-bulb
thermometers
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