Mitsubishi Electric MS-07NV -E1 (WH) User manual

SERVICE MANUAL
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················3
3. SPECIFICATION·················································6
4. OUTLINES AND DIMENSIONS ·························9
5. WIRING DIAGRAM ··········································12
6. REFRIGERANT SYSTEM DIAGRAM··············20
7. PERFORMANCE CURVES······························24
8. MICROPROCESSOR CONTROL ····················27
9. SERVICE FUNCTIONS ····································34
10. TROUBLESHOOTING······································37
11. DISASSEMBLY INSTRUCTIONS·····················45
12. PARTS LIST······················································53
13. OPTIONAL PARTS···········································61
Wireless type
Models
MS-07NV - (WH) · MU-07NV -
MS-09NV - (WH) · MU-09NV -
MS-12NV - (WH) · MU-12NV -
MS-18NV - (WH) · MU-18NV -
MS-24NV - (WH) · MU-24NV -
MS-07NV - (WH) · MU-07NV -
MS-09NV - (WH) · MU-09NV -
MS-12NV - (WH) · MU-12NV -
MS-18NV - (WH) · MU-18NV -
MS-24NV - (WH) · MU-24NV -
MS-18NV - (WH) · MU-18NV - E3E3
E2E2
E2E2
E2E2
E2E2
E2E2
E1E1
E1E1
E1E1
E1E1
E1E1
No. OB206
MS-18NV -
MS-24NV -
MS-18NV -
MS-24NV -
MS-18NV - E3
E2
E2
E1
E1
This Servise Manual OB206 deals with MS-07/09/12/18/24NV-E1,
MU-07/09/12/18/24NV-E1, MS-18NV-E2, and MU-18NV-E2 in
OB175 THIRD EDITION issued in June in 1997.
Therfore, please refer to OB206, not to OB175 THIRD EDITION,
for the above models.
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2
TECHNICAL CHANGES
MS-07NV - ➔MS-07NV -
1. Indoor electronic control P.C. board has changed.
However, it is compatible between and models.
2. Auto restart function is added.
MS-09NV - ➔MS-09NV -
1. Indoor electronic control P.C. board has changed.
However, it is compatible between and models.
2. Auto restart function is added.
3. Refrigerant filling capacity (R-22) has changed. (900g ➔850g)
MS-12NV - ➔MS-12NV -
1. Indoor electronic control P.C. board has changed.
However, it is compatible between and models.
Auto restart function is added.
MS-18NV - ➔MS-18NV -
1. Indoor electronic control P.C. board has changed.
However, it is compatible between and models.
2. Auto restart function is added.
MS-24NV - ➔MS-24NV -
1. Indoor electronic control P.C. board has changed.
However, it is compatible between and models.
2. Auto restart function is added.
E2E1
E2E1
E3E2
E3E2
E2E1
E2E1
E2E1
E2E1
E2E1
E2E1
1
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3
PART NAMES AND FUNCTIONS
2
INDOOR UNIT
MS-07NV - MS-09NV - MS-12NV -
MS-07NV - MS-09NV - MS-12NV - E2E2E2
E1E1E1
OUTDOOR UNIT
MU-12NV - MU-18NV -
MU-24NV - MU-12NV -
MU-18NV - MU-24NV -
MU-18NV - E3
E2E2
E2E1
E1E1
MU-07NV- MU-09NV -
MU-07NV- MU-09NV - E2E2
E1E1
(When the front panel is open)
MS-07NV - MS-09NV - MS-12NV -
MS-07NV - MS-09NV - MS-12NV - E2E2E2
E1E1E1 MS-07NV - MS-09NV - MS-12NV -
MS-07NV - MS-09NV - MS-12NV - E2E2E2
E1E1E1
MS-18NV - MS-24NV -
MS-18NV - MS-24NV - MS-18NV - E3E2E2
E1E1 MS-18NV - MS-24NV -
MS-18NV - MS-24NV - MS-18NV - E3E2E2
E1E1
MS-18NV -
MS-24NV -
MS-18NV -
MS-24NV -
MS-18NV - E3
E2
E2
E1
E1
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4
REMOTE CONTROLLER
MS-07NV - MS-09NV - MS-12NV -
MS-18NV - MS-24NV - MS-18NV - E2E1E1
E1E1E1
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5
MS-07NV - (Product number 7000001T~) MS-09NV - (Product number 7000001T~)
MS-12NV - (Product number 7000001T~) MS-24NV - (Product number 7000001T~)
MS-07NV - MS-09NV -
MS-12NV - MS-18NV - (Product number 7000001T~)
MS-24NV - MS-18NV - E3E2
E2E2
E2E2
E1E1
E1E1
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Capacity
Electrical data
Compressor
Indoor
fan motor
Outdoor
fan motor
Dimensions
Weight
Special remarks
Model
Function
Power supply
Coefficient of performance(C.O.P)
Capacity
Dehumidification
Air flow
Power outlet
Running current
Power input
Auxiliary heater
Power factor
Starting current
Compressor motor current
Fan motor current
Model
Output
Winding resistance(at20:)
Model
Winding resistance(at20:)
Model
Winding resistance(at20:)
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Air direction
Sound level
(Hi)
Fan speed
(Hi)
Fan speed
regulator
Refrigerant filling capacity(R-22)
Thermistor
Width
Height
Depth
Width
Height
Depth
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
RT11(at25:)
RT12(at25:)
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
k"
k"
MS-07NV - E1 E2
Cooling
2.2
0.8
3.15-3.05
680-710
98-97
2.69-2.59
3.24-3.10
RH-135VGHT
650
C-R 4.17 C-S 5.75
0.65
MS-09NV - E1
Cooling
2.5
1.1
3.60-3.45
780-810
98-98
3.15-2.99
3.21-3.09
RH-145VGHT
700
C-R 4.04 C-S 5.96
0.9
815
275
183
780
540
255
8
32
5
37
44-45
1,100
740-770
4
1
10
10
Single phase,220-240V,50Hz
INDOOR 492 OUTDOOR 1620
10
—
25
INDOOR 0.17 OUTDOOR 0.29
RC4V19-AA
WHT-BLK292.4 BLK-RED324.6
RA6V23-AB
WHT-BLK268.4 BLK-RED390.8
6
NOTE:Test conditions
Cooling : Indoor DB27:/ WB19:
Outdoor DB35:/ WB24:
SPECIFICATION
3
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7
Capacity
Electrical data
Compressor
Indoor
fan motor
Outdoor
fan motor
Dimensions
Weight
Special remarks
Model
Function
Power supply
Coefficient of performance(C.O.P)
Capacity
Dehumidification
Air flow
Power outlet
Running current
Power input
Auxiliary heater
Power factor
Starting current
Compressor motor current
Fan motor current
Model
Output
Winding resistance(at20:)
Model
Winding resistance(at20:)
Model
Winding resistance(at20:)
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Air direction
Sound level
(Hi)
Fan speed
(Hi)
Fan speed
regulator
Refrigerant filling capacity(R-22)
Thermistor
Width
Height
Depth
Width
Height
Depth
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
RT11(at25:)
RT12(at25:)
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
k"
k"
MS-09NV - E2
Cooling
2.5
1.1
INDOOR 492 OUTDOOR 1620
3.60-3.45
780-810
98-98
25
3.15-2.99
INDOOR 0.17 OUTDOOR 0.29
3.21-3.09
RH-145VGHT
700
C-R 4.04 C-S 5.96
RA6V23-AB
WHT-BLK268.4 BLK-RED390.8
780
540
255
32
37
44-45
1,100
740-770
0.65
815
275
183
8
5
4
1
10
10
MS-12NV - E1 E2
Cooling
3.5
1.6
INDOOR 558 OUTDOOR 2190-2304
6.20-6.35
1310-1390
96-91
35
5.66-5.81
INDOOR 0.17 OUTDOOR 0.37
2.67-2.52
RH-231VHAT
1,100
C-R 2.11 C-S 3.97
RA6V40-EC or EE
WHT-BLK130.4 BLK-RED134.6
850
605
290
38
42
50
1,230
780-820
0.8
RC4V19-AA
WHT-BLK292.4 BLK-RED324.6
—
10
Single phase,220-240V,50Hz
NOTE:Test conditions
Cooling : Indoor DB27:/ WB19:
Outdoor DB35:/ WB24:
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8
Capacity
Electrical data
Compressor
Indoor
fan motor
Outdoor
fan motor
Dimensions
Weight
Special remarks
Model
Function
Power supply
Coefficient of performance(C.O.P)
Capacity
Dehumidification
Air flow
Power outlet
Running current
Power input
Auxiliary heater
Power factor
Starting current
Compressor motor current
Fan motor current
Model
Output
Winding resistance(at20:)
Model
Winding resistance(at20:)
Model
Winding resistance(at20:)
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Air direction
Sound level
(Hi)
Fan speed
(Hi)
Fan speed
regulator
Refrigerant filling capacity(R-22)
Thermistor
Width
Height
Depth
Width
Height
Depth
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
RT11(at25:)
RT12(at25:)
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
k"
k"
MS-18NV - E1 E2 E3 MS-24NV - E1 E2
Single phase,220-240V,50Hz
—
WHT-BLK183.8 BLK-RED250.5
1,015
320
190
850
605
290
14
5
4
10
10
Cooling
6.4
3.4
INDOOR 816 OUTDOOR 2286
25
12.9-12.6
2,780-2,900
98-96
59
12.06-11.76
INDOOR 0.29 OUTDOOR 0.55
2.30-2.21
NH-47VMDT
2,200
C-R0.96 C-S 2.07
RA4V27-EC
RA6V60-AA or AB
WHT-BLK81.1 BLK-RED102.2 BLK-YLW 92.2
61
45
53
1,260
860-886
2
2.15
Cooling
5.1
2.5
INDOOR 756 OUTDOOR 2190
15
9.1
1,910-2,010
95-92
51-55
8.46
INDOOR 0.25 OUTDOOR 0.39
2.67-2.54
NH-33VMDT
1,500
C-R1.2 C-S 2.7
RA4V27-EA
RA6V50-OD or OF
WHT-BLK116.4 BLK-RED111
55
42
52
1,180
810-845
1
1.65
NOTE:Test conditions
Cooling : Indoor DB27:/ WB19:
Outdoor DB35:/ WB24:
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9
OUTLINES AND DIMENSIONS
4
MS-07NV - MS-09NV -
MS-07NV - MS-09NV - E2E2
E1E1
MU-07NV - MU-09NV -
MU-07NV - MU-09NV - E2E2
E1E1
INDOOR UNIT
OUTDOOR UNIT
Unit : mm
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10
MS-12NV - MS-12NV - E2E1
MU-12NV - MU-12NV - E2E1
INDOOR UNIT
OUTDOOR UNIT
{
12.7
If the right/left sides or
back side is vacant,the
front has only to be 50cm
unobstructed.
If the front or right/left sides
are vacant, the top has only
to be 10cm unobstructed.
Unit : mm
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