Mitsubishi Electric MXZ-32SV User manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················2
3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ···························3
4. INDOOR UNITS COMBINATION·······················4
5. SPECIFICATION·················································8
6. NOISE CRITERIA CURVES······························ 9
7. OUTLINES AND DIMENSIONS ······················ 10
8. WIRING DIAGRAM···········································11
9. REFRIGERANT SYSTEM DIAGRAM··············12
10. PERFORMANCE CURVES······························13
11. MICROPROCESSOR CONTROL·····················19
12. TROUBLESHOOTING······································25
13. DISASSEMBLY INSTRUCTIONS·····················37
14. PARTS LIST······················································40
15. OPTIONAL PARTS···········································43
Inverter-controlled multi system
Model
MXZ-32SV -
MXZ-32SV - E2
E1
No. OB254
REVISED EDITION-A
This manual describes technical data of outdoor unit.
For indoor unit refer to the service manuals No. OB229, OB227 REVISED EDITION-B, OB252, OB212, OB239
and OC165 of corresponding models.
Model indication
Revision:
• MXZ-32SV - has been added.
• Please void OB254.
E2
SPLIT-TYPE, HEAT PUMPAIR CONDITIONER
OB254-1.qxp 03.1.16 4:33 PM Page 1

PART NAMES AND FUNCTIONS
2
OUTDOOR UNIT Air inlet
Air outlet
(back and side)
Model indication
MXZ-32SV-
MXZ-32SV- E2
E1
2
TECHNICAL CHANGES
1
MXZ-32RV - ➔MXZ-32SV -
1. The combination pattern of the indoor unit has increased.
2. Crankcase heater has disused.
3. Refrigerant circuit has changed.
• Disuse of 2-way valve.
• Disuse of capillary tube [3 o[2 o500.
• Disuse of low pressure switch.
• Disuse of suction pipe temperature thermistor.
MXZ-32SV - ➔MXZ-32SV -
1. Combinations of the connectable indoor units have increased.
2. Noise filter P.C. board has changed to improve the capacity for protecting the inverter-controlled circuit when the
voltage higher than the rated one is aupplied with the inverter-controlled circuit.
3. Noise filter P.C. board for “E1” and “E2” are not interchangeable.
4. Service parts have been changed as follows according to above change;
•The value of R(resistor)has changed. 10Ω➔20Ω
•TB6(terminal block) has been removed.
E2E1
E1E1
OB254-1.qxp 03.1.16 4:33 PM Page 2

3
3INDOOR / OUTDOOR CORRESPONDENCE TABLE
❈There is no combination other than this table.
MXZ-32SV- E1 , MXZ-32SV- E2
OUTDOOR UNIT
Combination of the connectable indoor units
07+07
07+09
07+12
07+18
09+09
09+12
09+18
12+12
12+18
18+18
07+07+07
07+07+09
07+07+12
07+07+18
07+09+09
07+09+12
07+09+18
07+12+12
07+12+18
07+18+18
09+09+09
09+09+12
09+09+18
09+12+12
09+12+18
09+18+18
12+12+12
12+12+18
07+07+07+07
07+07+07+09
07+07+07+12
07+07+07+18
07+07+09+09
07+07+09+12
07+07+09+18
07+07+12+12
07+07+12+18
07+09+09+09
07+09+09+12
07+09+09+18
07+09+12+12
09+09+09+09
09+09+09+12
09+09+09+18
09+09+12+12
NOTE: SLH-1AR is equivalent to class 09 (9000BTU).
MCFH-13NV, SEH-1.6AR, SLH-1.6AR is equivalent to class 12 (12000BTU).
MCFH-18NV, SEH-2AR,SLH-2AR is equivalent to class 18 (18000BTU).
OB254-1.qxp 03.1.16 4:33 PM Page 3

4
07
09
12
18
07+07
07+09
07+12
07+18
09+09
09+12
09+18
12+12
12+18
18+18
07+07+07
07+07+09
07+07+12
07+07+18
07+09+09
07+09+12
07+09+18
07+12+12
07+12+18
07+18+18
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
3.47
4.17
6.67
10.65
7.13
7.50
10.56
14.31
8.80
12.64
17.31
18.33
18.33
18.33
10.19
11.25
13.80
13.80
12.96
13.80
13.80
13.80
13.80
13.80
3.79
4.55
7.27
11.62
7.78
8.18
11.52
15.61
9.60
13.79
18.89
20.00
20.00
20.00
11.11
12.27
15.05
15.05
14.14
15.05
15.05
15.05
15.05
15.05
2.2
(0.9-2.7)
2.8
(0.9-3.2)
4.0
(0.9-4.5)
5.0
(0.9-5.4)
4.4
(1.8-5.4)
5.0
(1.8-5.8)
6.2
(1.8-6.6)
7.2
(1.8-7.7)
5.6
(1.8-6.2)
6.8
(1.8-7.3)
7.8
(1.8-8.5)
8.0
(1.8-8.8)
8.0
(1.8-8.8)
8.0
(1.8-8.8)
6.6
(2.4-8.1)
7.2
(2.4-8.6)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
7.8
(2.4-8.9)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
0.75
(0.26-0.93)
0.90
(0.26-1.04)
1.44
(0.26-1.70)
2.30
(0.26-2.98)
1.54
(0.58-1.96)
1.62
(0.58-2.05)
2.28
(0.58-2.51)
3.09
(0.58-3.65)
1.90
(0.58-2.18)
2.73
(0.58-3.22)
3.74
(0.58-4.56)
3.96
(0.58-4.90)
3.96
(0.58-4.90)
3.96
(0.58-4.90)
2.20
(0.70-3.65)
2.43
(0.70-4.11)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.80
(0.70-4.23)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2.2
2.8
3.8
4.2
2.8
3.6
4.0
3.1
3.6
3.25
-
-
-
-
2.2
2.8
4.0
5.0
2.8
4.0
5.0
4.0
4.5
4.0
2.2
2.2
2.1
1.9
2.8
2.5
2.3
3.1
2.8
3.25
2.2
2.8
4.0
5.0
2.2
2.2
2.2
2.2
2.8
2.8
2.8
4.0
3.5
4.0
2.2
2.2
2.1
1.9
2.2
1.9
1.7
1.8
1.6
1.5
Indoor units
combination Unit A Unit B Unit C Unit D
Cooling capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A) Power factor
(%)
220V 240V
NOTE: Electrical data is for outdoor unit only.
MXZ-32SV - E1 , MXZ-32SV - E2
INDOOR UNITS COMBINATION
4
NOTE: SLH-1AR is equivalent to class 09 (9000BTU).
MCFH-13NV, SEH-1.6AR, SLH-1.6AR is equivalent to class 12 (12000BTU).
MCFH-18NV, SEH-2AR,SLH-2AR is equivalent to class 18 (18000BTU).
OB254-1.qxp 03.1.16 4:33 PM Page 4

5
Indoor units
combination Unit A Unit B Unit C Unit D
Cooling capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A) Power factor
(%)
220V 240V
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.80
13.08
13.08
13.08
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
15.05
8.0
(2.4-9.0)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
8.0
(2.4-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
8.0
(2.8-9.0)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.98
(0.70-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
2.98
(0.80-4.27)
-
-
-
-
-
-
-
-
2.0
2.4
2.9
3.5
2.2
2.8
3.2
2.6
3.0
2.1
2.7
3.1
2.45
2.0
2.6
3.0
2.35
2.67
3.4
3.8
3.0
3.4
3.1
2.67
3.1
2.0
1.87
1.7
1.5
2.2
2.0
1.8
2.6
2.4
2.1
1.9
1.75
2.45
2.0
1.8
1.67
2.35
2.67
2.3
2.1
2.0
1.9
1.8
2.67
2.45
2.0
1.87
1.7
1.5
1.8
1.6
1.5
1.4
1.3
1.7
1.5
1.4
1.35
2.0
1.8
1.67
1.65
2.67
2.3
2.1
3.0
2.7
3.1
2.67
2.45
2.0
1.87
1.7
1.5
1.8
1.6
1.5
1.4
1.3
2.1
1.9
1.75
1.75
2.0
1.8
1.67
1.65
09+09+09
09+09+12
09+09+18
09+12+12
09+12+18
09+18+18
12+12+12
12+12+18
07+07+07+07
07+07+07+09
07+07+07+12
07+07+07+18
07+07+09+09
07+07+09+12
07+07+09+18
07+07+12+12
07+07+12+18
07+09+09+09
07+09+09+12
07+09+09+18
07+09+12+12
09+09+09+09
09+09+09+12
09+09+09+18
09+09+12+12
NOTE: Electrical data is for outdoor unit only.
NOTE: SLH-1AR is equivalent to class 09 (9000BTU).
MCFH-13NV, SEH-1.6AR, SLH-1.6AR is equivalent to class 12 (12000BTU).
MCFH-18NV, SEH-2AR,SLH-2AR is equivalent to class 18 (18000BTU).
OB254-1.qxp 03.1.16 4:33 PM Page 5

6
NOTE: Electrical data is for outdoor unit only.
07
09
12
18
07+07
07+09
07+12
07+18
09+09
09+12
09+18
12+12
12+18
18+18
07+07+07
07+07+09
07+07+12
07+07+18
07+09+09
07+09+12
07+09+18
07+12+12
07+12+18
07+18+18
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
5.23
6.11
8.84
10.65
8.94
9.49
11.81
12.41
10.88
12.13
12.87
12.87
12.87
12.87
11.20
11.57
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
5.71
6.67
9.65
11.62
9.75
10.35
12.88
13.54
11.87
13.23
14.04
14.04
14.04
14.04
12.22
12.63
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
3.2
(0.9-4.1)
4.0
(0.9-4.8)
6.0
(0.9-7.2)
7.1
(0.9-7.8)
6.4
(1.8-7.2)
7.2
(1.8-8.7)
8.6
(1.8-10.6)
9.0
(1.8-10.9)
8.0
(1.8-10.1)
8.8
(1.8-10.8)
9.3
(1.8-11.2)
9.3
(1.8-11.2)
9.3
(1.8-11.2)
9.3
(1.8-11.2)
8.6
(2.1-10.6)
9.0
(2.1-11.1)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
1.13
(0.27-1.60)
1.32
(0.27-1.70)
1.91
(0.27-2.57)
2.30
(0.27-2.83)
1.93
(0.48-2.30)
2.05
(0.48-2.68)
2.55
(0.48-3.80)
2.68
(0.48-3.89)
2.35
(0.48-3.56)
2.62
(0.48-3.86)
2.78
(0.48-3.98)
2.78
(0.48-3.98)
2.78
(0.48-3.98)
2.78
(0.48-3.98)
2.42
(0.52-3.00)
2.50
(0.52-3.30)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2.87
3.5
4.5
4.9
3.3
4.25
4.6
3.65
4.05
3.8
-
-
-
-
3.2
4.0
5.4
6.2
4.0
5.3
5.95
4.65
5.0
4.65
2.87
2.75
2.4
2.2
3.3
2.8
2.6
3.65
3.4
3.8
3.2
4.0
6.0
7.1
3.2
3.2
3.2
2.8
4.0
3.5
3.35
4.65
4.3
4.65
2.87
2.75
2.4
2.2
2.7
2.25
2.1
2.0
1.85
1.7
Indoor units
combination Unit A Unit B Unit C Unit D
Heating capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A) Power factor
(%)
220V 240V
NOTE: SLH-1AR is equivalent to class 09 (9000BTU).
MCFH-13NV, SEH-1.6AR, SLH-1.6AR is equivalent to class 12 (12000BTU).
MCFH-18NV, SEH-2AR,SLH-2AR is equivalent to class 18 (18000BTU).
OB254-1.qxp 03.1.16 4:33 PM Page 6

7
Indoor units
combination Unit A Unit B Unit C Unit D
Heating capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A) Power factor
(%)
220V 240V
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
12.87
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
14.04
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.1-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
9.3
(2.8-11.6)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.52-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
2.78
(0.60-3.50)
-
-
-
-
-
-
-
-
2.32
2.7
3.6
3.9
2.55
3.4
3.75
3.05
3.3
2.45
3.25
3.65
2.9
2.32
3.15
3.45
2.8
3.1
4.0
4.4
3.5
3.8
3.65
3.1
3.5
2.32
2.2
1.9
1.8
2.55
2.3
2.15
3.05
2.8
2.45
2.15
2.0
2.9
2.32
2.05
1.95
2.8
3.1
2.65
2.45
3.5
3.3
3.65
3.1
2.9
2.32
2.2
1.9
1.8
2.1
1.8
1.7
1.6
1.6
2.45
2.15
2.0
1.95
2.32
2.05
1.95
1.85
3.1
2.65
2.45
2.3
2.2
2.0
3.1
2.9
2.32
2.2
1.9
1.8
2.1
1.8
1.7
1.6
1.6
1.95
1.75
1.65
1.55
2.32
2.05
1.95
1.85
09+09+09
09+09+12
09+09+18
09+12+12
09+12+18
09+18+18
12+12+12
12+12+18
07+07+07+07
07+07+07+09
07+07+07+12
07+07+07+18
07+07+09+09
07+07+09+12
07+07+09+18
07+07+12+12
07+07+12+18
07+09+09+09
07+09+09+12
07+09+09+18
07+09+12+12
09+09+09+09
09+09+09+12
09+09+09+18
09+09+12+12
NOTE: Electrical data is for outdoor unit only.
NOTE: SLH-1AR is equivalent to class 09 (9000BTU).
MCFH-13NV, SEH-1.6AR, SLH-1.6AR is equivalent to class 12 (12000BTU).
MCFH-18NV, SEH-2AR,SLH-2AR is equivalent to class 18 (18000BTU).
OB254-1.qxp 03.1.16 4:33 PM Page 7

8
5SPECIFICATION
Outdoor model
Indoor units number
Indoor units total capacity (Connectable)
indoor units total capacity (Simultaneous operation)
Piping total length
Connecting pipe length
Height difference (Indoor ~ Outdoor)
Height difference (Indoor ~ Indoor)
Function
Capacity
Dehumidification
Outdoor air flow
Power outlet
Running current
Power input
Auxiliary heater
Crankcase heater
Power factor
Starting current
Compressor motor current
Fan motor current
Model
Output
Winding
resistance(at20:)
Model
Winding
resistance(at20:)
Dimensions WOHOD
Weight
Sound level (Hi)
Fan speed (Hi)
Fan speed regulator
Refrigerant filling
capacity(R-22)
Refrigerating oil (Model)
Thermistor RT61
Thermistor RT62
Thermistor RT63
Thermistor RT65
Thermistor RT66,67
Thermistor RT68,69
kW
R/h
K/h
A
A
W
A(kW)
W
%
A
A
A
W
"


"
mm
kg
dB
rpm
kg
cc
k"
k"
k"
k"
k"
k"

Compressor Electrical
data
Fan motor
Special remarks
Capacity System
Coefficient of performance(C.O.P)
Outdoor unit power supply
MXZ-32SV - E1 , MXZ-32SV - E2
Single phase
220-240V,50Hz
2 to 4
Total model name 42
Total model name 42
Max. 60
Max. 25
10
10
2400-2640
25
—
—
90.0
15.05-13.80
0.6
THV-247FBA (ROTARY)
2100
U-V 0.61
V-W 0.61 W-U 0.61
RA6V60-BA
WHT-BLK 78.7 BLK-YLW 26.9
YLW-BLU 11.7 BLU-RED 83.6
900o900o320 (+35)
79
630-675
3
3.9
870 (MS-56)
13.4 (at 100:)
10.0 (at 25:)
17.0 (at 50:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
Cooling
8.0 (0.9~9.0)
—
15.05-13.80
2980(260~4270)
15.71-14.35
2.68
45-47
Heating
9.3 (0.9~11.6)
—
14.04-12.87
2780(270~3500)
13.44-12.27
3.35
46-48
TEST CONDITIONS COOLING INDOOR DB27.0°C WB19.0°C
OUTDOOR DB35.0°C WB24.0°C
HEATING INDOOR DB20.0°C
OUTDOOR DB 7.0°C WB 6.0°C
✽1 Electrical data is for only outdoor unit.
OB254-1.qxp 03.1.16 4:33 PM Page 8

9
NOISE CRITERIA CURVES6
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, 0dB = 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
Test conditions.
Cooling :DB35: WB24:
Heating :DB 7:WB 6:
COOL(220V)
NOTCH
COOL(240V)
HEAT(220V)
HEAT(240V)
45
SPL(dB(A))
47
46
48
LINE
MXZ-32SV - E1
MXZ-32SV - E2
OB254-1.qxp 03.1.16 4:33 PM Page 9

10
OUTLINES AND DIMENSIONS
7
MXZ-32SV -
MXZ-32SV -E2
E1
Unit: mm
OUTDOOR UNIT
23
10 35320 900
88
460
50
900
350.0 480.8 531.3
317 23
33
Handle for
moving Air in
Indoor and
outdoor
connect wiring
23✕45 hole
Air in
D unit connection
C unit connection
B unit connection
A unit connection
6.35 (flared) 1/4
Liquid pipe
12.7 (flared) 1/2 (A , B unit)
9.52 (flared) 3/8 (C , D unit)
[
[
[
1.Installation space
2.Service space
More than
100
More than 200
More than 100
More than 500
More than 500
More than
100 More than
100
More than
350
Base bollt length
Less than
25
More than
350
More than
350
Service space
Air in
2-U-shape notched holes
(Base bolt M10)
(Base bolt M10)
Air in
Air out
200 200
387 355
27 40
(16) (16)
500
Veranda Base
Rubber cushion
More than 500
Note : Leave front and both sides
clearance fully. Note : Obsacle on front and rear sid only. The unit can be used by attaching an optional
outdoor outlet guide (MAC-855SG)
(but both sides and the top are opend.)
Note : Leave front and overhead
clearance fully.
Note : Leave front, overhead and
both clearance fully.
2-12 ✕ 36 Oval hole
OB254-1.qxp 03.1.16 4:33 PM Page 10