Page 1
SERVICE MANUAL
HFC
utilized
R410A
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
Inverter-controlled multi system type
Models
Revision C:
● “Check of HPS” has been corrected.
Please void OB319 REVISED EDITION-B.
No. OB319
REVISED EDITION-C
MXZ-A14WV MXZ-A14WV MXZ-A18WV MXZ-A18WV MXZ-A26WV MXZ-A32WV -
MXZ-A14WV MXZ-A14WV MXZ-A18WV MXZ-A18WV -
E1
E2
E1
E2
E1
E2
E1
E2
E1
E1
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················6
3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ···························6
4. INDOOR UNITS COMBINATION ·······················9
5. SPECIFICATION···············································21
6. NOISE CRITERIA CURVES·····························23
7. OUTLINES AND DIMENSIONS·······················24
8. WIRING DIAGRAM ··········································27
9. REFRIGERANT SYSTEM DIAGRAM··············30
10. PERFORMANCE CURVES······························33
11. ACTUAT OR CONTROL····································47
12. TROUBLESHOOTING ······································48
13. DISASSEMBLY INSTRUCTIONS·····················67
14. PARTS LIST······················································74
15. OPTIONAL PARTS ···········································79
NOTE:
•This service manual describes technical data of outdoor units.
As for indoor units, refer to the service manual OB307, OB321, OB327, OB329,
OB336, OB345, OC302 or OC303.
Page 2
Revision A:
• MXZ-A14WV - has been added.
E1
Revision B:
• MXZ-A14WV - and MXZ-A18WV - have been added.
E2E2
Revision C:
• “Check of HPS” has been corrected.
1
MXZ-14WV -
New model
MXZ-18TV - ➔MXZ-A18WV -
1. Outdoor model has been changed.
2. Refrigerant has been changed. (R22➔R410A)
TECHNICAL CHANGES
E1
E1E2
MXZ-24UV - ➔MXZ-A26WV -
1. Cooling capacity has been made larger. (7.1kW➔7.2kW)
2. Combinations of connectable indoor units have been increased.
3. Capacity class of connectable indoor units have been made larger.
4. Compressor has been changed. (THV247FBA➔TNB220FMCH)
5. Outdoor fan motor has been changed. (RA6V60-BA➔PM8H60-UA)
6. Refrigerant has been changed. (R22➔R410A)
7. Refrigerant system diagram has been changed.
• 1 of 2 high pressure switch has been removed.
• Accumulator has been removed.
• Receiver has been added.
MXZ-32SV - ➔MXZ-A32WV -
1. Combinations of connectable indoor units have been increased.
2. Capacity class of connectable indoor units have been made larger.
3. Compressor has been changed. (THV247FBA➔TNB220FMCH)
4. Outdoor fan motor has been changed. (RA6V60-BA➔PM8H60-UA)
5. Refrigerant has been changed. (R22➔R410A)
6. Refrigerant system diagram has been changed.
• 1 of 2 high pressure switch has been removed.
• Accumulator has been removed.
• Receiver has been added.
MXZ-14WV - ➔MXZ-A14WV -
1. Reversing valve has been changed.
2. Reversing valve coil has been changed.
3. Outdoor noise filter P.C.board has been changed.
E1E2
E1E2
E2E1
MXZ-18WV - ➔MXZ-A18WV -
1. Reversing valve has been changed.
2. Reversing valve coil has been changed.
3. Outdoor noise filter P.C.board has been changed.
E2E1
2
Page 3
Refrigeration
oil
Refrigerant
New refrigerant
R410A
HFC-32: HFC-125 (50%:50%)
Pseudo-azeotropic refrigerant
Not included
A1/A1
72.6
-51.4
1.557
64
Non combustible
0
1730
From liquid phase in cylinder
Possible
Incompatible oil
Non
Non
Previous refrigerant
R22
R22 (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)
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 CFC-11
w2 :Global Warmth Parameter : based on CO
2
INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT
New Specification Current Specification
The incompatible refrigeration oil easily separates from
refrigerant and is in the upper layer inside the suction muffler.
Raising position of the oil back hole enables to back the
refrigeration oil of the upper layer to flow back to the
compressor.
Since refrigerant and refrigeration oil are compatible each,
refrigeration oil goes back to the compressor through the
lower position oil back hole.
Compressor
Suction muffler
Oil back hole
Refrigeration oil
Refrigerant
Compressor
Suction muffler
Oil back hole
Refrigerating oil /Refrigerant
Compressor
• This room air conditioner adopts HFC refrigerant (R410A) which never destroys the ozone layer.
• Pay particular attention to the following points, though the basic installation procedure is same as that for R22 conditioners.
1 As R410A has working pressure approximate 1.6 times as high as that of R22, some special tools and piping parts/
materials are required. Refer to the table below.
2 Take sufficient care not to allow water and other contaminations to enter the R410A refrigerant during storage and
installation, since it is more susceptible to contaminations than R22.
3 For refrigerant piping, use clean, pressure-proof parts/materials specifically designed for R410A. (Refer to 2. Refrigerant
piping.)
4 Composition change may occur in R410A since it is a mixed refrigerant. When charging, charge liquid refrigerant to prevent
composition change.
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])
3
Page 4
-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])
R410A
R22
Conversion chart of refrigerant temperature and pressure
Saturated liquid pressure
(:)
NOTE : The unit of pressure has been changed to MPa on the
R410A tools Can R22 tools be used?
Gas leak detector
R410A has high pressures beyond the measurement range of existing
gauges. Port diameters have been changed to prevent any other refrigerant
from being charged into the unit.
Hose material and cap size have been changed to improve the pressure
resistance.
Dedicated for HFC refrigerant.
6.35 mm and 9.52 mm
Description
Clamp bar hole has been enlarged to reinforce the spring strength in the tool.
Provided for flaring work (to be used with R22 flare tool).
Provided to prevent the back flow of oil. This adapter enables you to use
vacuum pumps.
It is difficult to measure R410A with a charging cylinder because the
refrigerant bubbles due to high pressure and high-speed vaporization
No
No
No
Yes
Yes
New
New
New
Gauge manifold
Charge hose
Torque wrench
Flare tool
Flare gauge
Vacuum pump
adapter
Electronic scale for
refrigerant charging
No : Not Substitutable for R410A Yes : Substitutable for R410A
No 12.7 mm and 15.88 mm
Wall thickness
Outside diameter
Pipe
mm
For liquid
For gas
6.35/9.52
9.52
12.7
15.88
0.8 mm/0.8 mm
0.8 mm
0.8 mm
1.0 mm
Heat resisting foam plastic
Specific gravity 0.045 Thickness 8 mm
Insulation material
international system of units(SI unit system).
The conversion factor is: 1(MPa [Gauge]) =10.2(kgf/ff[Gauge])
1.Tools dedicated for the air conditioner with R410A refrigerant
The following tools are required for R410A refrigerant. Some R22 tools can be substituted for R410A tools.
The diameter of the service port on the stop valve in outdoor unit has been changed to prevent any other refrigerant being
charged into the unit. Cap size has been changed from 7/16 UNF with 20 threads to 1/2 UNF with 20 threads.
2.Refrigerant piping
1 Specifications
Use the refrigerant pipes that meet the following specifications.
• Use a copper pipe or a copper-alloy seamless pipe with a thickness of 0.8 mm. Never use any pipe with a thickness less
than 0.8mm, as the pressure resistance is insufficient.
4
Page 5
2 Flaring work and flare nut
Flaring work for R410A pipe differs from that for R22 pipe.
For details of flaring work, refer to Installation manual “FLARING WORK”.
Pipe diameter
mm
6.35
9.52
12.7
15.88
Dimension of flare nut
R410A
17
22
26
29
R22
17
22
24
27
3.Refrigerant oil
Apply the special refrigeration oil (accessories: packed with indoor unit) to the flare and the union seat surfaces.
4.Air purge
• Do not discharge the refrigerant into the atmosphere.
Take care not to discharge refrigerant into the atmosphere during installation, reinstallation, or repairs to the refrigerant
circuit.
• Use the vacuum pump for air purging for the purpose of environmental protection.
5.Additional charge
For additional charging, charge the refrigerant from liquid phase of the gas cylinder.
If the refrigerant is charged from the gas phase, composition change may occur in the refrigerant inside the cylinder and the
outdoor unit. In this case, ability of the refrigeration cycle decreases or normal operation can be impossible. However,
charging the liquid refrigerant all at once may cause the compressor to be locked. Thus, charge the refrigerant slowly.
Union
Stop valve
Indoor unit
Refrigerant gas
cylinder
operating valve
Liquid pipe
Gas pipe
Service port
Gauge manifold
valve (for R410A)
Charge hose (for R410A)
Refrigerant gas cylinder
for R410A with siphon
Refrigerant (liquid)
Electronic scale for refrigerant charging
Outdoor unit
5
Page 6
2
MXZ-A14WV-
E1
MXZ-A14WV-
E2
OUTDOOR UNIT
❈There is no combination other than this table.
Combination of the
connectable indoor units
07+07
07+09
07+12
09+09
09+12
PART NAMES AND FUNCTIONS
OUTDOOR UNIT
MXZ-A14WVMXZ-A14WVMXZ-A18WVMXZ-A18WV-
ACCESSORIES
MXZ-A14WVMXZ-A14WVMXZ-A18WVMXZ-A18WVMXZ-A26WVMXZ-A32WV-
E1
E2
E1
E2
Air inlet
(Back and side)
Air outlet
Drain outlet
E1
E2
E1
E2
E1
E1
MXZ-A26WVMXZ-A32WV-
E1
E1
Air inlet
(Back and side)
Air outlet
Drain outlet
1
Drain socket
2
Drain cap
3
MXZ-A14WV MXZ-A14WV -
INDOOR/ OUTDOOR CORRESPONDENCE TABLE
E1
E2
1
2
MXZ-A18WV MXZ-A18WV -
Combination of the
connectable indoor units
E1
E2
OUTDOOR UNIT
MXZ-A18WVMXZ-A18WV-
07+07
07+09
07+12
09+09
09+12
12+12
E1
E2
❈There is no combination other than this table.
6
Page 7
MXZ-A26WV -
E1
OUTDOOR UNIT
Combination of the connectable indoor units
❈There is no combination other than this table.
MXZ-A26WV-
07+07
07+09
07+12
07+18
07+24
07+26
09+09
09+12
09+18
09+24
09+26
12+12
12+18
12+24
12+26
18+18
18+24
18+26
07+07+07
07+07+09
07+07+12
07+07+18
07+07+24
07+07+26
07+09+09
07+09+12
07+09+18
07+09+24
07+09+26
07+12+12
07+12+18
07+12+24
07+12+26
07+18+18
07+18+24
07+18+26
09+09+09
09+09+12
09+09+18
09+09+24
09+09+26
09+12+12
09+12+18
09+12+24
09+12+26
09+18+18
09+18+24
12+12+12
12+12+18
12+12+24
12+12+26
12+18+18
12+18+24
7
E1
Page 8
❈There is no combination other than this table.
MXZ-A32WV-
E1
OUTDOOR UNIT
MXZ-A32WV-
E1
OUTDOOR UNIT
Combination of the connectable indoor units
07+07
07+09
07+12
07+18
07+24
07+26
09+09
09+12
09+18
09+24
09+26
12+12
12+18
12+24
12+26
18+18
18+24
18+26
24+24
24+26
07+07+07
07+07+09
07+07+12
07+07+18
07+07+24
07+07+26
07+09+09
07+09+12
07+09+18
07+09+24
07+09+26
07+12+12
07+12+18
07+12+24
07+12+26
07+18+18
07+18+24
07+18+26
09+09+09
09+09+12
09+09+18
09+09+24
09+09+26
09+12+12
09+12+18
09+12+24
09+12+26
09+18+18
Combination of the connectable indoor units
09+18+24
12+12+12
12+12+18
12+12+24
12+12+26
12+18+18
12+18+24
07+07+07+07
07+07+07+09
07+07+07+12
07+07+07+18
07+07+07+24
07+07+07+26
07+07+09+09
07+07+09+12
07+07+09+18
07+07+09+24
07+07+09+26
07+07+12+12
07+07+12+18
07+07+12+24
07+07+18+18
07+09+09+09
07+09+09+12
07+09+09+18
07+09+09+24
07+09+12+12
07+09+12+18
07+09+12+24
07+12+12+12
07+12+12+18
09+09+09+09
09+09+09+12
09+09+09+18
09+09+09+24
09+09+12+12
09+09+12+18
09+12+12+12
12+12+12+12
MXZ-A32WV -
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Page 9
INDOOR UNITS COMBINATION4
NOTE: Electrical data is for outdoor unit only.
07
09
12
07+07
07+09
07+12
09+09
09+12
90
90
90
90
90
90
90
90
4.73
5.17
6.76
5.22
5.17
5.17
5.12
5.12
3.3
(0.9-4.0)
3.6
(0.9-4.5)
4.0
(0.9-4.8)
4.4
(1.53-4.8)
4.4
(1.53-4.8)
4.4
(1.55-4.9)
4.4
(1.55-4.9)
4.5
(1.56-5.0)
0.980
(0.230-1.120)
1.070
(0.230-1.200)
1.400
(0.220-1.680)
1.080
(0.300-1.180)
1.070
(0.300-1.180)
1.070
(0.300-1.180)
1.060
(0.300-1.180)
1.060
(0.300-1.190)
–
–
–
2.20
2.29
2.62
2.20
2.59
3.3
3.6
4.0
2.20
2.11
1.78
2.20
1.91
Indoor units
combination
Unit A Unit B
Heating capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A)
Power
factor
(%)
230V
07
09
12
07+07
07+09
07+12
09+09
09+12
90
90
90
90
90
90
90
90
3.62
3.91
5.70
5.31
5.41
5.46
5.46
5.55
2.3
(0.9-2.95)
2.5
(0.9-3.30)
3.4
(0.9-4.00)
3.8
(1.49-4.30)
3.9
(1.49-4.30)
3.9
(1.51-4.40)
3.9
(1.51-4.40)
4.0
(1.53-4.50)
0.750
(0.230-1.000)
0.810
(0.230-1.070)
1.180
(0.220-1.450)
1.100
(0.370-1.280)
1.120
(0.370-1.280)
1.130
(0.370-1.330)
1.130
(0.370-1.330)
1.150
(0.370-1.330)
–
–
–
1.90
2.03
2.33
1.95
2.31
2.3
2.5
3.4
1.90
1.87
1.57
1.95
1.69
Indoor units
combination
Unit A Unit B
Cooling capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A)
Power
factor
(%)
230V
NOTE: Electrical data is for outdoor unit only.
MXZ-A14WV -
E1
MXZ-A14WV -
E2
9
Page 10
NOTE: Electrical data is for outdoor unit only.
07
09
12
07+07
07+09
07+12
09+09
09+12
12+12
90
90
90
90
90
90
90
90
90
4.73
5.14
6.76
9.32
9.37
9.03
9.28
8.91
8.55
3.3
(0.9-4.0)
3.6
(0.9-4.5)
4.0
(0.9-4.8)
6.1
(1.53-6.70)
6.2
(1.53-6.80)
6.5
(1.55-7.00)
6.5
(1.55-7.0)
6.55
(1.56-7.1)
6.6
(1.58-7.2)
0.980
(0.225-1.115)
1.065
(0.225-1.195)
1.400
(0.220-1.680)
1.930
(0.300-2.070)
1.940
(0.300-2.040)
1.870
(0.295-1.980)
1.920
(0.295-2.010)
1.845
(0.295-1.950)
1.770
(0.290-1.850)
–
–
–
3.05
3.23
3.88
3.25
3.77
3.30
3.3
3.6
4.0
3.05
2.97
2.62
3.25
2.78
3.30
Indoor units
combination
Unit A Unit B
Heating capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A)
Power
factor
(%)
230V
07
09
12
07+07
07+09
07+12
09+09
09+12
12+12
90
90
90
90
90
90
90
90
90
3.62
3.91
5.70
7.15
7.73
7.78
8.60
8.84
8.99
2.3
(0.9-2.95)
2.5
(0.9-3.30)
3.4
(0.9-4.00)
4.6
(1.49-5.30)
4.8
(1.49-5.40)
5.0
(1.51-5.60)
5.0
(1.51-5.55)
5.3
(1.53-5.80)
5.4
(1.55-6.00)
0.750
(0.225-1.000)
0.810
(0.225-1.070)
1.180
(0.220-1.450)
1.480
(0.370-2.060)
1.600
(0.370-2.070)
1.610
(0.365-2.100)
1.780
(0.370-2.105)
1.830
(0.365-2.110)
1.860
(0.370-2.130)
–
–
–
2.3
2.5
2.98
2.5
3.1
2.65
2.3
2.5
3.4
2.3
2.3
2.02
2.5
2.2
2.65
Indoor units
combination
Unit A Unit B
Cooling capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A)
Power
factor
(%)
230V
NOTE: Electrical data is for outdoor unit only.
MXZ-A18WV -
E1
MXZ-A18WV -
E2
10
Page 11
MXZ-A26WV -
Indoor units
combination
07
09
12
18
24
26
07+07
07+09
07+12
07+18
07+24
07+26
09+09
09+12
09+18
09+24
09+26
12+12
12+18
12+24
12+26
18+18
18+24
18+26
07+07+07
07+07+09
07+07+12
07+07+18
07+07+24
07+07+26
07+09+09
07+09+12
07+09+18
07+09+24
E1
Cooling capacity (kW)
Unit A Unit B Unit C
2.3
2.5
3.4
5.0
6.0
7.1
2.3
2.1
2.1
2.01
1.62
1.52
2.5
2.52
2.4
1.96
1.85
3.4
2.88
2.4
2.27
3.6
3.08
2.94
2.3
2.16
1.93
1.58
1.32
1.26
2.01
1.8
1.48
1.26
–
–
–
–
–
–
2.3
2.7
3.6
5.18
5.57
5.67
2.5
3.37
4.8
5.23
5.34
3.4
4.32
4.8
4.92
3.6
4.11
4.25
2.3
2.16
1.93
1.58
1.32
1.26
2.59
2.31
1.9
1.62
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2.3
2.77
3.32
4.05
4.55
4.68
2.59
3.09
3.81
4.32
Total
2.3
(1.4-3.0)
2.5
(1.4-3.3)
3.4
(1.5-4.3)
5.0
(1.6-5.6)
6.0
(1.6-6.6)
7.1
(1.7-7.4)
4.6
(2.0-5.4)
4.8
(2.0-5.8)
5.7
(2.0-6.6)
7.2
(2.0-7.7)
7.2
(2.0-8.0)
7.2
(2.0-8.2)
5.0
(2.0-6.2)
5.9
(2.0-7.3)
7.2
(2.0-8.5)
7.2
(2.0-8.5)
7.2
(2.0-8.5)
6.8
(2.0-8.5)
7.2
(2.0-8.5)
7.2
(2.0-8.5)
7.2
(2.0-8.5)
7.2
(2.1-8.5)
7.2
(2.1-8.5)
7.2
(2.1-8.5)
6.9
(2.9-8.1)
7.1
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
11
NOTE: Electrical data is for outdoor unit only.
Outdoor unit
power consumption
(kW)
0.710
(0.400-0.920)
0.760
(0.400-1.010)
1.000
(0.400-1.290)
1.440
(0.420-1.630)
1.930
(0.400-2.130)
2.580
(0.410-2.710)
1.180
(0.600-1.600)
1.300
(0.600-1.770)
1.710
(0.600-2.200)
2.400
(0.560-2.710)
2.360
(0.560-3.050)
2.360
(0.560-3.200)
1.360
(0.580-1.950)
1.860
(0.580-2.670)
2.400
(0.560-3.200)
2.360
(0.560-3.170)
2.360
(0.560-3.170)
2.330
(0.580-3.260)
2.390
(0.560-3.210)
2.350
(0.560-3.180)
2.350
(0.560-3.180)
2.340
(0.590-3.160)
2.300
(0.570-3.110)
2.300
(0.570-3.110)
1.940
(0.690-2.410)
2.030
(0.690-2.510)
2.310
(0.690-2.620)
2.320
(0.700-2.570)
2.370
(0.680-2.530)
2.390
(0.680-2.530)
2.130
(0.690-2.620)
2.350
(0.690-2.620)
2.370
(0.700-2.570)
2.390
(0.680-2.530)
Current
(A)
3.12
3.34
4.39
6.32
8.48
11.33
5.18
5.71
7.51
10.54
10.36
10.36
5.97
8.17
10.54
10.36
10.36
10.23
10.50
10.32
10.32
10.28
10.10
10.10
8.52
8.92
10.14
10.19
10.41
10.50
9.35
10.32
10.41
10.50
Power
factor
(%)
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
Page 12
07+09+26
07+12+12
07+12+18
07+12+24
07+12+26
07+18+18
07+18+24
07+18+26
09+09+09
09+09+12
09+09+18
09+09+24
09+09+26
09+12+12
09+12+18
09+12+24
09+12+26
09+18+18
09+18+24
12+12+12
12+12+18
12+12+24
12+12+26
12+18+18
12+18+24
Indoor units
combination
Unit A Unit B Unit C
Cooling capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A)
Power
factor
(%)
NOTE: Electrical data is for outdoor unit only.
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
10.50
10.32
10.19
10.32
10.32
10.23
10.10
10.10
8.92
10.32
10.41
10.50
10.50
10.32
10.45
10.32
10.32
10.23
10.10
9.18
10.01
9.93
9.93
9.84
9.75
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.1
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
7.2
(2.9-8.5)
2.390
(0.680-2.530)
2.350
(0.690-2.570)
2.320
(0.700-2.540)
2.350
(0.680-2.520)
2.350
(0.680-2.520)
2.330
(0.680-2.520)
2.300
(0.660-2.490)
2.300
(0.660-2.490)
2.030
(0.690-2.650)
2.350
(0.690-2.620)
2.370
(0.700-2.570)
2.390
(0.680-2.530)
2.390
(0.680-2.530)
2.350
(0.690-2.570)
2.380
(0.700-2.540)
2.350
(0.680-2.520)
2.350
(0.680-2.520)
2.330
(0.660-2.500)
2.300
(0.660-2.500)
2.090
(0.720-2.560)
2.280
(0.700-2.530)
2.260
(0.680-2.500)
2.260
(0.680-2.500)
2.240
(0.680-2.500)
2.220
(0.660-2.470)
1.54
2.79
2.33
2.0
1.92
3.01
2.64
2.54
2.36
2.16
1.8
1.54
1.47
2.61
2.21
1.92
1.83
2.88
2.54
2.4
2.05
1.8
1.72
2.7
2.4
4.45
2.79
3.5
4.01
4.16
3.01
3.52
3.67
2.36
2.89
3.6
4.11
4.25
2.61
3.32
3.84
3.98
2.88
3.38
2.4
3.08
3.6
3.74
2.7
3.2
1.2
1.62
1.36
1.17
1.12
1.17
1.02
0.98
2.36
2.16
1.8
1.54
1.47
1.97
1.66
1.44
1.37
1.44
1.27
2.4
2.05
1.8
1.72
1.8
1.6
12
Page 13
Indoor units
combination
07
09
12
18
24
26
07+07
07+09
07+12
07+18
07+24
07+26
09+09
09+12
09+18
09+24
09+26
12+12
12+18
12+24
12+26
18+18
18+24
18+26
07+07+07
07+07+09
07+07+12
07+07+18
07+07+24
07+07+26
07+09+09
07+09+12
07+09+18
07+09+24
Heating capacity (kW)
Unit A Unit B Unit C
3.3
3.6
4.0
7.2
7.9
8.6
3.3
3.02
2.69
2.49
2.03
1.91
3.6
3.26
3.0
2.45
2.31
4.0
3.6
3.0
2.84
4.5
3.86
3.68
2.9
2.67
2.42
1.96
1.65
1.57
2.52
2.25
1.85
1.57
–
–
–
–
–
–
3.3
3.88
4.61
6.41
6.97
7.09
3.6
4.34
6.0
6.55
6.69
4.0
5.4
6.0
6.16
4.5
5.14
5.32
2.9
2.67
2.42
1.96
1.65
1.57
3.24
2.89
2.38
2.02
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2.9
3.44
4.15
5.06
5.68
5.85
3.24
3.85
4.76
5.4
Total
3.3
(1.2-4.2)
3.6
(1.2-4.5)
4.0
(1.2-4.8)
7.2
(1.4-8.2)
7.9
(1.4-8.6)
8.6
(1.6-9.2)
6.6
(1.8-7.2)
6.9
(1.8-8.7)
7.3
(1.8-9.2)
8.9
(1.8-9.9)
9.0
(1.8-9.9)
9.0
(1.8-9.9)
7.2
(1.8-9.1)
7.6
(1.8-9.5)
9.0
(1.8-10.1)
9.0
(1.8-10.1)
9.0
(1.8-10.1)
8.0
(1.8-9.8)
9.0
(1.8-10.5)
9.0
(1.8-10.5)
9.0
(1.8-10.5)
9.0
(1.9-11.0)
9.0
(1.9-11.0)
9.0
(1.9-11.0)
8.7
(2.6-10.6)
8.8
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
13
NOTE: Electrical data is for outdoor unit only.
Outdoor unit
power consumption
(kW)
1.050
(0.340-1.380)
1.110
(0.340-1.510)
1.210
(0.330-1.570)
2.270
(0.330-2.710)
2.700
(0.330-3.060)
3.220
(0.360-3.520)
2.020
(0.480-2.760)
2.120
(0.480-3.000)
2.130
(0.480-3.110)
2.470
(0.460-3.140)
2.520
(0.460-3.140)
2.520
(0.460-3.140)
2.170
(0.480-3.140)
2.210
(0.480-3.230)
2.520
(0.460-3.260)
2.500
(0.460-3.260)
2.500
(0.460-3.260)
2.370
(0.480-3.230)
2.500
(0.460-3.420)
2.480
(0.460-3.420)
2.480
(0.460-3.420)
2.210
(0.440-3.260)
2.210
(0.440-3.260)
2.210
(0.440-3.260)
2.150
(0.530-3.150)
2.170
(0.530-3.170)
2.200
(0.530-3.190)
2.040
(0.510-3.040)
2.040
(0.510-3.040)
2.040
(0.510-3.040)
2.200
(0.530-3.260)
2.180
(0.530-3.180)
2.020
(0.510-3.040)
2.020
(0.510-3.040)
Current
(A)
4.61
4.87
5.31
9.97
11.86
14.14
8.87
9.31
9.35
10.85
11.07
11.07
9.53
9.71
11.07
10.98
10.98
10.41
10.98
10.89
10.89
9.71
9.71
9.71
9.44
9.53
9.66
8.96
8.96
8.96
9.66
9.57
8.87
8.87
Power
factor
(%)
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
Page 14
07+09+26
07+12+12
07+12+18
07+12+24
07+12+26
07+18+18
07+18+24
07+18+26
09+09+09
09+09+12
09+09+18
09+09+24
09+09+26
09+12+12
09+12+18
09+12+24
09+12+26
09+18+18
09+18+24
12+12+12
12+12+18
12+12+24
12+12+26
12+18+18
12+18+24
Indoor units
combination
Unit A Unit B Unit C
Heating capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A)
Power
factor
(%)
NOTE: Electrical data is for outdoor unit only.
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
8.87
9.57
8.52
8.52
8.52
8.12
8.12
8.12
9.53
9.49
8.78
8.78
8.78
9.49
8.43
8.43
8.43
8.04
8.04
9.44
8.30
8.30
8.30
7.91
7.91
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.6-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.6-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
9.0
(2.7-11.0)
2.020
(0.510-3.040)
2.180
(0.530-3.150)
1.940
(0.510-2.950)
1.940
(0.510-2.950)
1.940
(0.510-2.950)
1.850
(0.490-2.830)
1.850
(0.490-2.830)
1.850
(0.490-2.830)
2.170
(0.530-3.230)
2.160
(0.530-3.180)
2.000
(0.510-3.030)
2.000
(0.510-3.030)
2.000
(0.510-3.030)
2.160
(0.530-3.150)
1.920
(0.510-2.950)
1.920
(0.510-2.950)
1.920
(0.510-2.950)
1.830
(0.490-2.830)
1.830
(0.490-2.830)
2.150
(0.530-3.050)
1.890
(0.510-2.890)
1.890
(0.510-2.890)
1.890
(0.510-2.890)
1.800
(0.490-2.770)
1.800
(0.490-2.770)
1.92
3.48
2.91
2.51
2.4
3.76
3.3
3.17
3.0
2.7
2.25
1.92
1.84
3.27
2.76
2.4
2.29
3.6
3.17
3.0
2.57
2.25
2.16
3.37
3.0
5.57
3.48
4.37
5.02
5.2
3.76
4.4
4.58
3.0
3.6
4.5
5.14
5.31
3.27
4.15
4.8
4.97
3.6
4.23
3.0
3.85
4.5
4.68
3.37
4.0
1.5
2.03
1.7
1.46
1.4
1.46
1.28
1.23
3.0
2.7
2.25
1.92
1.84
2.45
2.07
1.8
1.72
1.8
1.58
3.0
2.57
2.25
2.16
2.25
2.0
14
Page 15
MXZ-A32WV -
Indoor units
combination
07
09
12
18
24
26
07+07
07+09
07+12
07+18
07+24
07+26
09+09
09+12
09+18
09+24
09+26
12+12
12+18
12+24
12+26
18+18
18+24
18+26
24+24
24+26
07+07+07
07+07+09
07+07+12
07+07+18
07+07+24
07+07+26
07+09+09
07+09+12
E1
Cooling capacity (kW)
Unit A Unit B Unit C Unit D
2.3
2.5
3.4
5.0
6.0
7.1
2.3
2.1
2.1
2.04
1.75
1.66
2.5
2.52
2.5
2.11
2.01
3.4
3.1
2.61
2.51
3.95
3.42
3.27
4.0
3.84
2.3
2.16
2.07
1.72
1.46
1.4
2.04
1.93
–
–
–
–
–
–
2.3
2.7
3.6
5.25
6.0
6.19
2.5
3.37
5.0
5.64
5.84
3.4
4.65
5.24
5.44
3.95
4.57
4.72
4.0
4.16
2.3
2.16
2.07
1.72
1.46
1.4
2.62
2.49
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2.3
2.77
3.55
4.41
5.03
5.2
2.62
3.33
NOTE: Electrical data is for outdoor unit only.
Outdoor unit
Total
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
15
2.3
(1.4-3.0)
2.5
(1.4-3.3)
3.4
(1.5-4.3)
5.0
(1.6-5.6)
6.0
(1.6-6.6)
7.1
(1.7-7.4)
4.6
(2.0-5.4)
4.8
(2.0-5.8)
5.7
(2.0-6.6)
7.3
(2.0-7.7)
7.75
(2.0-8.0)
7.85
(2.0-8.2)
5.0
(2.0-6.2)
5.9
(2.0-7.3)
7.5
(2.0-8.5)
7.75
(2.0-8.6)
7.85
(2.0-8.7)
6.8
(2.0-8.8)
7.75
(2.0-8.8)
7.85
(2.0-8.8)
7.95
(2.0-8.8)
7.9
(2.1-8.8)
8.0
(2.1-8.8)
8.0
(2.1-8.8)
8.0
(2.1-8.8)
8.0
(2.1-8.8)
6.9
(2.9-8.1)
7.1
(2.9-8.6)
7.7
(2.9-9.0)
7.85
(2.9-9.0)
7.95
(2.9-9.0)
8.0
(2.9-9.0)
7.3
(2.9-8.9)
7.75
(2.9-9.0)
power consumption
(kW)
0.710
(0.400-0.920)
0.760
(0.400-1.010)
1.000
(0.400-1.290)
1.440
(0.420-1.630)
1.930
(0.400-2.130)
2.580
(0.410-2.710)
1.180
(0.600-1.600)
1.300
(0.600-1.770)
1.710
(0.600-2.200)
2.480
(0.560-2.710)
2.750
(0.560-3.050)
2.810
(0.560-3.200)
1.360
(0.580-1.950)
1.860
(0.580-2.670)
2.580
(0.560-3.200)
2.750
(0.560-3.280)
2.810
(0.560-3.320)
2.330
(0.580-3.270)
2.760
(0.560-3.220)
2.730
(0.560-3.180)
2.780
(0.560-3.180)
2.780
(0.590-3.160)
2.800
(0.570-3.120)
2.800
(0.570-3.120)
2.690
(0.550-3.080)
2.690
(0.550-3.080)
1.940
(0.690-2.410)
2.030
(0.690-2.720)
2.310
(0.690-2.970)
2.320
(0.700-2.920)
2.370
(0.680-2.880)
2.390
(0.680-2.880)
2.130
(0.690-2.940)
2.350
(0.690-2.970)
Current
(A)
3.12
3.34
4.39
6.32
8.48
11.33
5.18
5.71
7.51
10.89
12.08
12.34
5.97
8.17
11.33
12.08
12.34
10.23
12.12
11.99
12.21
12.21
12.30
12.30
11.81
11.81
8.52
8.92
10.14
10.19
10.41
10.50
9.35
10.32
Power
factor
(%)
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
Page 16
Indoor units
combination
Unit A Unit B Unit C Unit D
Cooling capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A)
Power
factor
(%)
NOTE: Electrical data is for outdoor unit only.
07+09+18
07+09+24
07+09+26
07+12+12
07+12+18
07+12+24
07+12+26
07+18+18
07+18+24
07+18+26
09+09+09
09+09+12
09+09+18
09+09+24
09+09+26
09+12+12
09+12+18
09+12+24
09+12+26
09+18+18
09+18+24
12+12+12
12+12+18
12+12+24
12+12+26
12+18+18
12+18+24
07+07+07+07
07+07+07+09
07+07+07+12
07+07+07+18
07+07+07+24
07+07+07+26
07+07+09+09
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
10.41
10.50
10.50
10.32
10.19
10.32
10.32
10.23
10.10
10.10
8.92
10.32
10.41
10.50
10.50
10.32
10.45
10.32
10.32
10.23
10.10
10.01
10.01
9.93
9.93
9.84
9.75
9.57
9.62
9.71
9.44
9.35
9.35
9.62
7.9
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
7.85
(2.9-9.0)
7.9
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
7.1
(2.9-9.0)
7.75
(2.9-9.0)
7.9
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
7.85
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
7.95
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
8.0
(2.9-9.0)
7.8
(3.7-9.2)
7.85
(3.7-9.2)
7.95
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
7.85
(3.7-9.2)
2.370
(0.700-2.920)
2.390
(0.680-2.880)
2.390
(0.680-2.880)
2.350
(0.690-2.920)
2.320
(0.700-2.890)
2.350
(0.680-2.860)
2.350
(0.680-2.860)
2.330
(0.680-2.860)
2.300
(0.660-2.830)
2.300
(0.660-2.830)
2.030
(0.690-3.010)
2.350
(0.690-2.970)
2.370
(0.700-2.920)
2.390
(0.680-2.880)
2.390
(0.680-2.880)
2.350
(0.690-2.920)
2.380
(0.700-2.890)
2.350
(0.680-2.860)
2.350
(0.680-2.860)
2.330
(0.660-2.840)
2.300
(0.660-2.830)
2.280
(0.720-2.910)
2.280
(0.700-2.870)
2.260
(0.680-2.840)
2.260
(0.680-2.840)
2.240
(0.680-2.840)
2.220
(0.660-2.810)
2.180
(0.810-2.670)
2.190
(0.810-2.670)
2.210
(0.810-2.650)
2.150
(0.790-2.620)
2.130
(0.770-2.590)
2.130
(0.770-2.590)
2.190
(0.810-2.670)
2.09
1.8
1.71
3.04
2.56
2.23
2.13
3.34
2.93
2.82
2.36
2.32
1.97
1.71
1.63
2.85
2.46
2.13
2.04
3.2
2.82
2.65
2.28
2.0
1.92
3.0
2.66
1.95
1.83
1.68
1.43
1.24
1.19
1.72
4.18
4.8
4.95
3.04
3.84
4.46
4.62
3.34
3.91
4.07
2.36
3.11
3.95
4.57
4.72
2.85
3.69
4.26
4.42
3.2
3.76
2.65
3.42
4.0
4.16
3.0
3.55
1.95
1.83
1.68
1.43
1.24
1.19
2.2
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1.95
2.36
2.91
3.69
4.26
4.42
2.2
1.62
1.4
1.33
1.77
1.49
1.3
1.24
1.3
1.14
1.09
2.36
2.32
1.97
1.71
1.63
2.15
1.84
1.6
1.53
1.6
1.41
2.65
2.28
2.0
1.92
2.0
1.77
1.95
1.83
1.68
1.43
1.24
1.19
1.72
16
Page 17
Indoor units
combination
07+07+09+12
07+07+09+18
07+07+09+24
07+07+09+26
07+07+12+12
07+07+12+18
07+07+12+24
07+07+18+18
07+09+09+09
07+09+09+12
07+09+09+18
07+09+09+24
07+09+12+12
07+09+12+18
07+09+12+24
07+12+12+12
07+12+12+18
09+09+09+09
09+09+09+12
09+09+09+18
09+09+09+24
09+09+12+12
09+09+12+18
09+12+12+12
12+12+12+12
Cooling capacity (kW)
Unit A Unit B Unit C Unit D
1.59
1.36
1.19
1.14
1.47
1.27
1.12
1.12
1.62
1.5
1.3
1.14
1.4
1.21
1.07
1.3
1.14
1.97
1.84
1.6
1.41
1.56
1.5
1.6
2.0
1.59
1.36
1.19
1.14
1.47
1.27
1.12
1.12
2.09
1.93
1.67
1.46
1.8
1.56
1.38
2.23
1.95
1.97
1.84
1.6
1.41
1.75
1.5
2.13
2.0
2.04
1.75
1.53
1.46
2.52
2.18
1.92
2.88
2.09
1.93
1.67
1.46
2.4
2.08
1.84
2.23
1.95
1.97
1.84
1.6
1.41
2.34
2.0
2.13
2.0
2.72
3.51
4.08
4.24
2.52
3.27
3.84
2.88
2.09
2.59
3.34
3.91
2.4
3.13
3.69
2.23
2.93
1.97
2.46
3.2
3.76
2.34
3.0
2.13
2.0
Total
7.95
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
7.9
(3.7-9.2)
7.95
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
7.9
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
8.0
(3.7-9.2)
NOTE: Electrical data is for outdoor unit only.
Outdoor unit
power consumption
(kW)
2.210
(0.810-2.650)
2.150
(0.790-2.620)
2.130
(0.770-2.590)
2.130
(0.770-2.590)
2.210
(0.810-2.620)
2.120
(0.790-2.590)
2.100
(0.770-2.560)
2.070
(0.770-2.560)
2.140
(0.810-2.670)
2.210
(0.810-2.650)
2.150
(0.790-2.620)
2.130
(0.770-2.590)
2.210
(0.810-2.620)
2.120
(0.790-2.590)
2.100
(0.770-2.560)
2.200
(0.810-2.610)
2.080
(0.790-2.580)
2.140
(0.810-2.670)
2.220
(0.810-2.650)
2.150
(0.790-2.620)
2.130
(0.770-2.590)
2.210
(0.810-2.620)
2.120
(0.790-2.590)
2.200
(0.810-2.610)
2.190
(0.810-2.580)
Current
(A)
9.71
9.44
9.35
9.35
9.71
9.31
9.22
9.09
9.40
9.71
9.44
9.35
9.71
9.31
9.22
9.66
9.13
9.40
9.75
9.44
9.35
9.71
9.31
9.66
9.62
Power
factor
(%)
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
17
Page 18
Indoor units
combination
Unit A Unit B Unit C Unit D
Heating capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A)
Power
factor
(%)
NOTE: Electrical data is for outdoor unit only.
07
09
12
18
24
26
07+07
07+09
07+12
07+18
07+24
07+26
09+09
09+12
09+18
09+24
09+26
12+12
12+18
12+24
12+26
18+18
18+24
18+26
24+24
24+26
07+07+07
07+07+09
07+07+12
07+07+18
07+07+24
07+07+26
07+09+09
07+09+12
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
4.61
4.87
5.31
9.97
11.86
14.14
8.87
9.31
9.35
10.85
11.90
11.90
9.53
9.71
11.07
11.90
11.90
10.41
11.24
11.24
11.24
10.41
10.41
10.41
10.41
10.41
9.44
9.53
10.14
9.31
9.31
9.31
9.53
9.97
3.3
(1.2-4.2)
3.6
(1.2-4.5)
4.0
(1.2-4.8)
7.2
(1.4-8.2)
7.9
(1.4-8.6)
8.6
(1.6-9.2)
6.6
(1.8-7.2)
6.9
(1.8-8.7)
7.3
(1.8-9.2)
8.9
(1.8-9.9)
9.4
(1.8-9.9)
9.4
(1.8-9.9)
7.2
(1.8-9.1)
7.6
(1.8-9.5)
9.0
(1.8-10.1)
9.4
(1.8-10.1)
9.4
(1.8-10.1)
8.0
(1.8-9.8)
9.4
(1.8-10.5)
9.4
(1.8-10.5)
9.4
(1.8-10.5)
9.4
(1.9-11.2)
9.4
(1.9-11.2)
9.4
(1.9-11.2)
9.4
(1.9-11.2)
9.4
(1.9-11.2)
8.7
(2.6-10.6)
8.8
(2.6-11.1)
9.4
(2.6-11.6)
9.4
(2.6-11.6)
9.4
(2.6-11.6)
9.4
(2.6-11.6)
8.9
(2.6-11.6)
9.4
(2.6-11.6)
1.050
(0.340-1.380)
1.110
(0.340-1.510)
1.210
(0.330-1.570)
2.270
(0.330-2.710)
2.700
(0.330-3.060)
3.220
(0.360-3.520)
2.020
(0.480-2.760)
2.120
(0.480-3.000)
2.130
(0.480-3.110)
2.470
(0.460-3.140)
2.710
(0.460-3.140)
2.710
(0.460-3.140)
2.170
(0.480-3.140)
2.210
(0.480-3.230)
2.520
(0.460-3.260)
2.710
(0.460-3.260)
2.710
(0.460-3.260)
2.370
(0.480-3.230)
2.560
(0.460-3.420)
2.560
(0.460-3.420)
2.560
(0.460-3.420)
2.370
(0.440-3.320)
2.370
(0.440-3.320)
2.370
(0.440-3.320)
2.370
(0.440-3.320)
2.370
(0.440-3.320)
2.150
(0.530-3.060)
2.170
(0.530-3.330)
2.310
(0.530-3.400)
2.120
(0.510-3.330)
2.120
(0.510-3.330)
2.120
(0.510-3.330)
2.170
(0.530-3.420)
2.270
(0.530-3.410)
–
–
–
–
–
–
3.3
3.88
4.61
6.41
7.28
7.41
3.6
4.34
6.0
6.84
6.98
4.0
5.64
6.27
6.43
4.7
5.37
5.55
4.7
4.89
2.9
2.67
2.53
2.05
1.73
1.64
3.2
3.02
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2.9
3.44
4.33
5.28
5.93
6.11
3.2
4.02
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
3.3
3.6
4.0
7.2
7.9
8.6
3.3
3.02
2.69
2.49
2.12
1.99
3.6
3.26
3.0
2.56
2.42
4.0
3.76
3.13
2.97
4.7
4.03
3.85
4.7
4.51
2.9
2.67
2.53
2.05
1.73
1.64
2.49
2.35
18
Page 19
Indoor units
combination
07+09+18
07+09+24
07+09+26
07+12+12
07+12+18
07+12+24
07+12+26
07+18+18
07+18+24
07+18+26
09+09+09
09+09+12
09+09+18
09+09+24
09+09+26
09+12+12
09+12+18
09+12+24
09+12+26
09+18+18
09+18+24
12+12+12
12+12+18
12+12+24
12+12+26
12+18+18
12+18+24
07+07+07+07
07+07+07+09
07+07+07+12
07+07+07+18
07+07+07+24
07+07+07+26
07+07+09+09
Heating capacity (kW)
Unit A Unit B Unit C Unit D
1.93
1.64
1.56
2.12
1.77
1.53
1.46
1.53
1.34
1.29
3.0
2.82
2.35
2.01
1.92
2.56
2.16
1.88
1.8
1.88
1.65
3.13
2.68
2.35
2.25
2.35
2.08
2.35
2.19
1.99
1.68
1.46
1.4
2.05
2.48
2.11
2.01
3.63
3.04
2.62
2.5
3.93
3.45
3.31
3.0
2.82
2.35
2.01
1.92
3.41
2.89
2.5
2.4
3.76
3.31
3.13
2.68
2.35
2.25
3.52
3.13
2.35
2.19
1.99
1.68
1.46
1.4
2.05
4.97
5.64
5.81
3.63
4.57
5.24
5.43
3.93
4.6
4.79
3.0
3.76
4.7
5.37
5.55
3.41
4.33
5.01
5.2
3.76
4.42
3.13
4.02
4.7
4.88
3.52
4.17
2.35
2.19
1.99
1.68
1.46
1.4
2.64
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2.35
2.82
3.41
4.33
5.01
5.2
2.64
19
Total
9.4
(2.6-11.6)
9.4
(2.6-11.6)
9.4
(2.6-11.6)
9.4
(2.6-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.0
(2.6-11.6)
9.4
(2.6-11.6)
9.4
(2.6-11.6)
9.4
(2.6-11.6)
9.4
(2.6-11.6)
9.4
(2.6-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.6-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(2.7-11.6)
9.4
(3.4-11.6)
9.4
(3.4-11.6)
9.4
(3.4-11.6)
9.4
(3.5-11.6)
9.4
(3.5-11.6)
9.4
(3.5-11.6)
9.4
(3.4-11.6)
NOTE: Electrical data is for outdoor unit only.
Outdoor unit
power consumption
(kW)
2.100
(0.510-3.330)
2.100
(0.510-3.330)
2.100
(0.510-3.330)
2.210
(0.530-3.400)
2.050
(0.510-3.230)
2.050
(0.510-3.230)
2.050
(0.510-3.230)
1.960
(0.490-3.100)
1.960
(0.490-3.100)
1.960
(0.490-3.100)
2.170
(0.530-3.420)
2.250
(0.530-3.410)
2.090
(0.510-3.320)
2.090
(0.510-3.320)
2.090
(0.510-3.320)
2.190
(0.530-3.400)
2.030
(0.510-3.230)
2.030
(0.510-3.230)
2.030
(0.510-3.230)
1.940
(0.490-3.100)
1.940
(0.490-3.100)
2.170
(0.530-3.380)
2.010
(0.510-3.160)
2.010
(0.510-3.160)
2.010
(0.510-3.160)
1.920
(0.490-3.030)
1.920
(0.490-3.030)
2.020
(0.590-3.420)
1.990
(0.590-3.410)
1.960
(0.590-3.390)
1.910
(0.580-3.260)
1.910
(0.580-3.260)
1.910
(0.580-3.260)
1.980
(0.590-3.400)
Current
(A)
9.22
9.22
9.22
9.71
9.00
9.00
9.00
8.61
8.61
8.61
9.53
9.88
9.18
9.18
9.18
9.62
8.92
8.92
8.92
8.52
8.52
9.53
8.83
8.83
8.83
8.43
8.43
8.87
8.74
8.61
8.39
8.39
8.39
8.70
Power
factor
(%)
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
Page 20
Indoor units
combination
Unit A Unit B Unit C Unit D
Heating capacity (kW)
Total
Outdoor unit
power consumption
(kW)
Current
(A)
Power
factor
(%)
NOTE: Electrical data is for outdoor unit only.
07+07+09+12
07+07+09+18
07+07+09+24
07+07+09+26
07+07+12+12
07+07+12+18
07+07+12+24
07+07+18+18
07+09+09+09
07+09+09+12
07+09+09+18
07+09+09+24
07+09+12+12
07+09+12+18
07+09+12+24
07+12+12+12
07+12+12+18
09+09+09+09
09+09+09+12
09+09+09+18
09+09+09+24
09+09+12+12
09+09+12+18
09+12+12+12
12+12+12+12
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
8.52
8.30
8.30
8.30
8.39
7.99
7.99
7.69
8.61
8.43
8.21
8.21
8.30
7.91
7.91
8.17
7.82
8.56
8.39
8.17
8.17
8.21
7.82
8.08
8.48
9.4
(3.4-11.6)
9.4
(3.5-11.6)
9.4
(3.5-11.6)
9.4
(3.5-11.6)
9.4
(3.4-11.6)
9.4
(3.5-11.6)
9.4
(3.5-11.6)
9.4
(3.4-11.6)
9.4
(3.4-11.6)
9.4
(3.4-11.6)
9.4
(3.5-11.6)
9.4
(3.5-11.6)
9.4
(3.4-11.6)
9.4
(3.5-11.6)
9.4
(3.5-11.6)
9.4
(3.4-11.6)
9.4
(3.5-11.6)
9.4
(3.4-11.6)
9.4
(3.4-11.6)
9.4
(3.5-11.6)
9.4
(3.5-11.6)
9.4
(3.4-11.6)
9.4
(3.5-11.6)
9.4
(3.4-11.6)
9.4
(3.4-11.6)
1.940
(0.590-3.390)
1.890
(0.580-3.270)
1.890
(0.580-3.270)
1.890
(0.580-3.270)
1.910
(0.590-3.340)
1.820
(0.580-3.220)
1.820
(0.580-3.220)
1.750
(0.550-3.130)
1.960
(0.590-3.390)
1.920
(0.590-3.370)
1.870
(0.580-3.230)
1.870
(0.580-3.230)
1.890
(0.590-3.320)
1.800
(0.580-3.200)
1.800
(0.580-3.200)
1.860
(0.590-3.280)
1.780
(0.580-3.210)
1.950
(0.590-3.390)
1.910
(0.590-3.350)
1.860
(0.580-3.210)
1.860
(0.580-3.210)
1.870
(0.590-3.300)
1.780
(0.580-3.190)
1.840
(0.590-3.260)
1.930
(0.590-3.230)
1.88
1.6
1.4
1.34
1.73
1.49
1.31
1.31
2.48
2.28
1.96
1.72
2.11
1.83
1.62
2.62
2.3
2.35
2.16
1.88
1.65
2.06
1.76
2.5
2.35
2.41
2.06
1.8
1.72
2.96
2.56
2.25
3.38
2.48
2.28
1.96
1.72
2.82
2.45
2.16
2.62
2.3
2.35
2.16
1.88
1.65
2.75
2.35
2.5
2.35
3.22
4.12
4.8
4.98
2.96
3.84
4.51
3.38
2.48
3.04
3.93
4.6
2.82
3.67
4.33
2.62
3.45
2.35
2.89
3.76
4.42
2.75
3.52
2.5
2.35
1.88
1.6
1.4
1.34
1.73
1.49
1.31
1.31
1.93
1.77
1.53
1.34
1.64
1.43
1.26
1.53
1.34
2.35
2.16
1.88
1.65
1.83
1.76
1.88
2.35
20
Page 21
5
Outdoor model
Indoor units number
Piping total length
Connecting pipe length
Height difference (Indoor ~ Outdoor)
Height difference (Indoor ~ Indoor)
Function
Capacity [Rated (Min.~Max.) Hz]✽1
Dehumidification
Outdoor air flow
Power outlet
Running current ✽1
Power input
Auxiliary heater
Crankcase heater
Power factor ✽1
Starting current ✽1
Compressor motor current
Fan motor current
Model
Output
Winding
resistance (at 20:)
Model
Winding
resistance (at 20:)
Dimensions WOHOD
Weight
Sound level (High/Low ) ✽3
Fan speed (High/Low ) ✽3
Fan speed regulator ✽3
Refrigerant filling
capacity (R410A)
Refrigeration oil (Model)
Thermistor RT61
Thermistor RT62
Thermistor RT63
Thermistor RT6A,6B
Thermistor RT65
Thermistor RT68
m
m
m
m
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
✽2 Electrical
data
Fan
motor
Special
remarks
Capacity System
Coefficient of performance (C.O.P)
Outdoor unit power supply
MXZ-A14WV -
E1
MXZ-A14WV -
E2
Single phase
230V,50Hz
2
Max. 30 (chargeless 20)
Max. 20
10
10
2,460
20
—
—
90.0
5.55
0.57
SNV-092FJYH (ROTARY)
1,100
U-V 2.56
V-W 2.56 W-U 2.56
RA6V49
WHT-BLK 139.9 BLK-YLW 34.2
BLK-RED 205.3
840(+69)o640o330
52
725/620
2
1.75
450 (NEO22)
13.4 (at 100:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
17.0 (at 50:)
10.0 (at 25:)
Cooling
4.0 (1.53~4.5)
—
5.55
1,150 (370~1,330)
4.98
3.48
48/44
Heating
4.5 (1.56~5.0)
—
5.12
1,060 (300~1,190)
4.55
4.25
49/45
w
w
w w
w
MXZ-A18WV -
E1
MXZ-A18WV -
E2
Single phase
230V,50Hz
2
Max. 30 (chargeless 20)
Max. 20
10
10
2,460
20
—
—
90.0
8.98
0.57
SNV-092FJYH (ROTARY)
1,450
U-V 2.56
V-W 2.56 W-U 2.56
RA6V49
WHT-BLK 139.9 BLK-YLW 34.2
BLK-RED 205.3
840(+69)o640o330
52
725/620
2
1.75
450 (NEO22)
13.4 (at 100:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
17.0 (at 50:)
10.0 (at 25:)
Cooling
5.4 (1.55~6.0)
—
8.98
1,860 (370~2,130)
8.41
2.90
49/44
Heating
6.6 (1.58~7.2)
—
8.55
1,770 (290~1,850)
7.98
3.73
50/45
w w
w
SPECIFICATION
NOTE:•Test conditions are based on ISO 5151 (Refrigerant piping length (one way) :5m).
•Refer to “3. INDOOR/OUTDOOR CORRESPONDENCE TABLE” for the combination.
w Reference value
✽1 Measured under rated operating frequency.
✽2 Electrical data is for only outdoor unit.
✽3 These specifications are when all indoor units are operating.
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
21
Page 22
Outdoor model
Indoor units number
Piping total length
Connecting pipe length
Height difference (Indoor ~ Outdoor)
Height difference (Indoor ~ Indoor)
Function
Capacity [Rated (Min.~Max.) Hz]✽1
Dehumidification
Outdoor air flow
Power outlet
Running current ✽1
Power input
Auxiliary heater
Crankcase heater
Power factor ✽1
Starting current ✽1
Compressor motor current
Fan motor current
Model
Output
Winding
resistance (at 20:)
Model
Winding
resistance (at 20:)
Dimensions WOHOD
Weight
Sound level (High/Low )
✽3
Fan speed (High/Low )
✽3
Fan speed regulator ✽3
Refrigerant filling
capacity (R410A)
Refrigeration oil (Model)
Thermistor RT61
Thermistor RT62
Thermistor RT63
Thermistor RT68
Thermistor RT6A
Thermistor RT6B
Thermistor RT6C
Thermistor RT6D
Thermistor RT65
m
m
m
m
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"
k"
k"
k"
Compressor
✽2 Electrical
data
Fan
motor
Special
remarks
Capacity System
Coefficient of performance (C.O.P)
Outdoor unit power supply
MXZ-A26WV -
E1
Single phase
230V,50Hz
2 to 3
Max. 50
Max. 25
10
10
25
—
—
99.0
9.44
0.2
TNB220FMCH (ROTARY)
2,000
U-V 1.41
V-W 1.41 W-U 1.41
PM8H60-UA
BLK-WHT 15.2
WHT-RED 15.2 RED-BLK 15.2
900o900o320 (+35)
69
2
3.5
870 (NEO22)
13.4 (at 100:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
17.0 (at 50:)
Cooling
7.2 (2.9~8.5)
—
2,530
9.18
2,090 (720~2,560)
8.98
3.44
46/44
550/490
Heating
9.0 (2.6~11.0)
—
2,630
9.44
2,150 (530~3,050)
9.24
4.19
48/46
560/490
w w w w w
w w w w w
MXZ-A32WV -
E1
Single phase
230V,50Hz
2 to 4
Max. 70
Max. 25
10
10
25
—
—
99.0
9.62
0.2
TNB220FMCH (ROTARY)
2,100
U-V 1.41
V-W 1.41 W-U 1.41
PM8H60-UA
BLK-WHT 15.2
WHT-RED 15.2 RED-BLK 15.2
900o900o320 (+35)
70
2
3.5
870 (NEO22)
13.4 (at 100:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
10.0 (at 25:)
17.0 (at 50:)
Cooling
8.0 (3.7~9.2)
—
2,530
9.62
2,190 (810~2,580)
9.42
3.65
46/44
550/490
Heating
9.4 (3.4~11.6)
—
2,630
8.48
1,930 (590~3,230)
8.28
4.87
48/46
560/490
NOTE:•Test conditions are based on ISO 5151 (Refrigerant piping length (one way) :5m).
•Refer to “3. INDOOR/OUTDOOR CORRESPONDENCE TABLE” for the combination.
w Reference value
✽1 Measured under rated operating frequency.
✽2 Electrical data is for only outdoor unit.
✽3 These specifications are when all indoor units are operating.
TEST CONDITIONS COOLING INDOOR DB27.0°C WB19.0°C
HEATING INDOOR DB20.0°C
OUTDOOR DB35.0°C WB24.0°C
OUTDOOR DB 7.0°C WB 6.0°C
22
Page 23
6
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD 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 :DB 35: WB 24:
Heating :DB 7: WB 6:
CoolingHigh
FUNCTION
FAN SPEED
HeatingHigh
49
SPL(dB(A))50LINE
MXZ-A18WV -
E1
MXZ-A18WV -
E2
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD 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 :DB 35: WB 24:
Heating :DB 7: WB 6:
CoolingHigh
FUNCTION
FAN SPEED
HeatingHigh
46
SPL(dB(A))48LINE
MXZ-A26WV -
E1
MXZ-A32WV -
E1
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD 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 :DB 35: WB 24:
Heating :DB 7: WB 6:
CoolingHigh
FUNCTION
FAN SPEED
HeatingHigh
48
SPL(dB(A))49LINE
MXZ-A14WV -
E1
MXZ-A14WV -
E2
OUTDOOR UNIT
MICROPHONE
1m
NOISE CRITERIA CURVES
23
Page 24
7
(
)
OUTLINES AND DIMENSIONS
OUTDOOR UNIT
MXZ-A14WV MXZ-A14WV MXZ-A18WV MXZ-A18WV -
273
Drainage
3 holes
([33)
Air in
65
50
E1
E2
E1
E2
Open as a rule
More than100mm
if the front and both
sides are open
*
More than 100mm
200mm or more if
there are obstacles
to both sides
More than 350mm
587
Air in
Air out
121
500
840
REQUIRED SPACE
More than
34
330
360
40
69
100mm
Open as a rule
More than 200mm if the back,
both sides and top are open
Note:
*
The dimensions given along the arrrows above are required to guarantee
the air conditioner's performance. Install the unit in as wide a place as
possible for later service or repairs.
Service panel
Unit: mm
320
640
195
Liquid refrigerant valve
(flared [6.35)
B UNIT
}
A UNIT
}
90 65 65 65
Gas refrigerant valve
flared [9.52
24
Page 25
OUTDOOR UNIT
MXZ-A26WV -
E1
Unit: mm
Less than 25
(Base bolt length)
Veranda
460
Base
900
317
1.Installation space
Note : Leave front and both sides
clearance fully.
Rubber cushion
Indoor and
outdoor
connect wiring
23O45 hole
250
50
380.8
23
More than
500
531.3
900
Air in
Drainage holes 3-[33
30
33
Liquid pipe
[6.35(flared)1/4
More than
100
200 500
250 27035
35
74
Gas pipe
[9.52(flared)3/8(B,C unit)
[12.7(flared)1/2(A unit)
32023 5
88
C unit connection
B unit connection
A unit connection
Air in
Air out
(200)
2-U-shape notched holes
(Base bolt M10)
(27)
(16)(16)
355
387
40
2-12O36 Oval hole
(Base bolt M10)
Note : Leave front and overhead
clearance fully.
More than
100
Note : Leave front, overhead and
both sides clearance fully.
More than
200
More than
350
More than
500
25
2.Service space
More than
100
More than
More than
100
More than
350500
service space
More than
500
Page 26
OUTDOOR UNIT
MXZ-A32WV -
E1
Unit: mm
Less than 25
(Base bolt length)
Veranda
460
Base
900
317
1.Installation space
Note : Leave front and both sides
clearance fully.
Rubber cushion
Indoor and
outdoor
connect wiring
23O45 hole
50
350
480.8
23
More than
500
531.3
900
35
35
Air in
74
Drainage holes 3-[33
30
33
Liquid pipe
[6.35(flared)1/4
More than
100
200 500
250 270
Air in
Air out
Gas pipe
[9.52(flared)3/8(C,D unit)
[12.7(flared)1/2(A,B unit)
32023 5
88
D unit connection
C unit connection
B unit connection
A unit connection
(200)
2-U-shape notched holes
(Base bolt M10)
(27)
(16)
355
387
40
(16)
2-12O36 Oval hole
(Base bolt M10)
Note : Leave front and overhead
clearance fully.
More than
100
Note : Leave front, overhead and
both sides clearance fully.
More than
More than
350
More than
500
200
26
2.Service space
More than
100
More than
More than
100
More than
350500
service space
500
More than
Page 27
8
WIRING DIAGRAM
MXZ-A14WV MXZ-A14WV MXZ-A18WV MXZ-A18WV -
E1
E2
E1
E2
OUTDOOR UNIT
TO INDOOR
UNIT No.A
CONNECTING
12V
TO INDOOR
UNIT No.B
CONNECTING
12V
CIRCUIT
BREAKER
POWER
SUPPLY
~/N
230V
50Hz
SYMBOL
CT61 CURRENT TRANSFORMER
CT761
C61 SMOOTHING CAPACITOR
C62
C63
C65 OUTDOOR FAN CAPACITOR
DS61 DIODE MODULE
DS62 DIODE MODULE
F61 FUSE(20A)
F801 FUSE(1A)
F911 FUSE(1A)
F912 FUSE(3.15A)
IPM POWER TRANSISTOR MODULE
L
TB2
3
N
3
N
F61
TB1
L
N
BLK
PE
GRN/YLW
X62
YLW
BLU
45
BLK
BLK
GRN
WHT
TAB1
TAB2
LDE
X61
C65
CN911
RED
MF
ACTIVE FILTER MODULEAFM
CURRENT TRANSFORMER
SMOOTHING CAPACITOR
SMOOTHING CAPACITOR
REACTOR
NAME
F912
NR63
NF
CT61
F911
2113
CN912
21S4
SYMBOL
LEV(A) EXPANSION VALVE A,COIL
LEV(B)
L63
MC
MF
NF NOISE FILTER
NR63
RT6A
RT6B
RT61
RT62 DEFROST THERMISTOR
RT63
RT65
RT68
R62
R64BR64A
3
X64
TAB4
CN901
SSR61
NOISE
FILTER
P.C.BOARD
W
EXPANSION VALVE B,COIL
NORMAL MODE CHOKE COIL
COMPRESSOR
OUTDOOR FAN MOTOR
VARISTOR
GAS PIPE TEMPERATURE A THERMISTOR
GAS PIPE TEMPERATURE B THERMISTOR
DISCHARGE TEMPERATURE THERMISTOR
EVAPORATOR TEMPERATURE THERMISTOR
FIN TEMPERATURE THERMISTOR
HIGH-PRESSURE PROTECT THERMISTOR
RESISTOR
BLU
3 1 3 1
7
CN851
TAB65
BLK
CN61
U
MC
1 2 3 5 6 7 81 2 3 43 41 21 2
BLK
V
WHT
RED
NAME
ORN
CT761
TAB66
WHT
BLU
CN601CN602
TAB67
RED
TAB61 TAB63
ORN
RED
TAB62
BLU
R62
N
WVUP
IPM
RT65
RT6A RT6B RT62 RT61 RT63 RT68
SYMBOL
RESISTORR64A
RESISTOR
R64B
SOLENOID COIL RELAY
SSR61
TB1 TERMINAL BLOCK
TB2 TERMINAL BLOCK
TRANSFORMER
T801
FAN MOTOR RELAY
X61
X62
FAN MOTOR RELAY
X64
RELAY
21S4 R.V. COIL
1.About the indoor side electric wiringNOTES
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
C63
F801
T801
DS61
L63
C62
C61
AFM
ELECTRONIC
CONTROL
P.C.BOARD
CN662CN661CN663
NAME
DS62
TAB64
6
CN771CN772
6
BLK
BLK
L
LEV
(A)
LEV
(B)
27
Page 28
MXZ-A26WV -
E1
OUTDOOR UNIT
W
V
MC
U
BLK
U
CT1
CB3
CB2
CB1
POWER BOARD
PFC
R
RED
1
L
2
BLK
4
X64
FILTERNOISE
P. C. BOARD
F912
S
YLW
4
3
WHT
TAB4
R64
(3.15A)
(250V)
TAB1
N/F
WHT
IPM
CN903
12
BLK
1 2
TAB2
V
CN5
NR63
N
BLK
CT61
14 3 2
1 2
CN902
CT2
BLK
RED
W
RS3
RS1
CN2
SSR61
F911
(1A)
567
(250V)
RS4
RS2
CN901
1 2 3 4 5
CN912
321
BLK
21
CN4
LDE2
LDE1
RT65
BLK
CN3
LD9
LD1
LD2
1 2
CN601
BLK
BLK
GRN
GRN
GRN
32 1 2 3
BLK
BLK
BLK
BLK
21S4
WHT
RED
BLK
BLK
BLK
BLK
BLK
BLK
CN602
12 3
CN801
1 2 3
F801
1 2
CN701
54321 76
CN702
CN781
1 2 3 4 5
CN932
HC932
(250V)
(3.15A)
CN603
1
T801
MF
YLW
R934B
ORN
BLU
CN795
CN661
CN662
CN681
1 432 5 6
81 2 3 4 5 6 7
871 65432
21
PNK
GRY
CN931
WHT
YLW
ORN
BLU
BRN
RED
GRY
GRY
GRY
GRY
BLK
BLK
GRY
GRY
GRY
GRY
GRY
GRY
GRY
GRY
RED
RED
E
LEV
RT61 RT68
RT62 RT63
RT6C
RT6B
RT6A
HPS
WHT
BLK
RED
12312345
R934A
ELECTRONIC CONTROL P. C. BOARD
WHT
652 3 41
CN793
CN792
(WHT) (RED) (BLU)
CN791
YLW
ORN
BLU
BRN
RED
WHT
652 3 41
YLW
ORN
BLU
BRN
RED
WHT
652 3 41
YLW
ORN
BLU
BRN
RED
C
LEV
B
LEV
A
LEV
diagram for servicing.
refer to the indoor unit electric wiring
1.About the indoor side electric wiringNOTES:
:Terminal block :Connector
3.Symbols below indicate.
2.Use copper conductors only (for field wiring).
NAME
TERMINAL BLOCK
EVAPORATION TEMPERATURE THERMISTOR
DEFROST THERMISTORRT62
FIN TEMPERATURE THERMISTOR
RT65
RT63
SYMBOL
TRANSFORMER
SOLENOID COIL RELAY
OUTDOOR HEAT EXCHANGER
TEMPERATURE THERMISTOR
RT68
SSR61
T801
TB1~4
R.V. COIL
RELAY
X64
21S4
NAME
COMPRESSOR
EXPANSION VALVELEV E
OUTDOOR FAN MOTOR (INNER FUSE)
NOISE FILTER
RESISTOR
POWER FACTOR CONTROLLER
MF
N/F
MC
SYMBOL
R64
PFC
NR63 VARISTOR
DISCHARGE TEMPERATURE THERMISTOR
RESISTOR
RESISTOR
GAS PIPE TEMPERATURE THERMISTOR
RT61
RS1~4
RT6A~C
R934A, B
GRN/YLW
PE
TB1
POWER SUPPLY
~/N 230V~
50Hz
BLK
L
BLU
N
BREAKER
CIRCUIT
BLU
TB2
N
INDOOR
RED
TB3
N
3
UNIT(A)
BLU
ORN
UNIT(B)
INDOOR
YLW
BLU
TB4
N
3
UNIT(C)
INDOOR
CONNECTING 12V
TO INDOOR UNIT
28
NAME
3
CURRENT TRANSFORMER
SMOOTHING CAPACITORCB1~3
CURRENT TRANSFORMER
FUSE (1A) (250V)
FET ARRAY
FUSE (3.15A) (250V)
FUSE (3.15A) (250V)
F911
F912
F801
CT61
CT1, 2
SYMBOL
HC932
EXPANSION VALVE
HIGH PRESSURE SWITCH
REACTOR
POWER TRANSISTOR MODULE
L
IPM
HPS
LEV A~C
Page 29
MXZ-A32WV -
E1
OUTDOOR UNIT
W
V
MC
U
BLK
U
CT1
WHT
IPM
RT65
MF
BLK
RED
V
CT2
BLK
W
1 2
CN3
LD9
GRN
CN932
HC932
BLK
WHT
RED
YLW
BLU
ORN
PNK
GRY
5 4 3 2 1 3 2 1
CN931
CB3
CB2
CB1
POWER BOARD
PFC
R
RED
1
L
2
BLK
4
X64
FILTERNOISE
P. C. BOARD
F912
S
YLW
4
3
WHT
TAB4
R64
(3.15A)
(250V)
TAB1
N/F
BLK
CN903
TAB2
CN5
2 1
21
NR63
N
CT61
BLK
CN902
BLK
21
RS4
RS3
LD1
LD2
RS2
RS1
CN2
234 1
SSR61
F911
(1A)
(250V)
CN4
7 6 5
54321
CN901
CN912
1 2 3
LDE2
LDE1
3212 3
21
BLK
BLK
GRN
GRN
CN601
BLK
BLK
BLK
BLK
WHT
RED
BLK
BLK
BLK
BLK
BLK
BLK
21S4
CN602
CN801
321
F801
21
CN701
6 71 2 3 4 5
CN702
54321
CN781
32 1
(3.15A)
(250V)
CN603
1
T801
R934B
R934A
1.About the indoor side electric wiringNOTES:
WHT
652 3 41
CN795
7654321 8
CN661
CN662
2 3 4 5 61 7 8
YLW
ORN
BLU
BRN
RED
GRY
GRY
GRY
GRY
BLK
BLK
GRY
GRY
GRY
GRY
GRY
GRY
GRY
GRY
GRY
GRY
E
LEV
RT68RT61
RT63RT62
NAME
RT6D
RT6C
RT6B
RT6A
SYMBOL
RED
RED
1 2
CN681
WHT
YLW
ORN
CN794
1 432 5 6
CN793
1 432 5 6
CN792
1 432 5 6
CN791
1 432 5 6
BLU
BRN
RED
WHT
YLW
ORN
BLU
BRN
RED
WHT
YLW
ORN
BLU
BRN
RED
WHT
YLW
ORN
BLU
BRN
RED
(GRN)(BLU)(RED)(WHT)
ELECTRONIC CONTROL P. C. BOARD
CN604
321
HPS
D
LEV
C
LEV
B
LEV
A
LEV
NAME
SYMBOL
diagram for servicing.
refer to the indoor unit electric wiring
DEFROST THERMISTORRT62
EXPANSION VALVELEV E
:Terminal block :Connector
3.Symbols below indicate.
2.Use copper conductors only (for field wiring).
TERMINAL BLOCK
EVAPORATION TEMPERATURE THERMISTOR
FIN TEMPERATURE THERMISTOR
RT65
RT63
COMPRESSOR
OUTDOOR FAN MOTOR (INNER FUSE)
MF
MC
TRANSFORMER
SOLENOID COIL RELAY
OUTDOOR HEAT EXCHANGER
TEMPERATURE THERMISTOR
RT68
SSR61
NOISE FILTER
POWER FACTOR CONTROLLER
N/F
PFC
NR63 VARISTOR
R.V. COIL
RELAY
X64
T801
21S4
TB1~5
DISCHARGE TEMPERATURE THERMISTOR
RESISTOR
RESISTOR
RESISTOR
GAS PIPE TEMPERATURE THERMISTOR
R64
RS1~4
RT6A~D
R934A, B
RT61
GRN/YLW
PE
TB1
POWER SUPPLY
~/N 230V~
50Hz
BLK
L
BLU
N
BREAKER
CIRCUIT
BLU
TB2
N
INDOOR
RED
TB3
3
UNIT(A)
ORN
BLU
N
UNIT(B)
INDOOR
3
BLU
TB4
N
INDOOR
29
YLW
BLU
TB5
3
N
INDOOR
UNIT(C)
CONNECTING 12V
TO INDOOR UNIT
BRN
3
UNIT(D)
NAME
CURRENT TRANSFORMER
SMOOTHING CAPACITORCB1~3
CURRENT TRANSFORMER
FUSE (3.15A) (250V)
F801
CT61
CT1, 2
SYMBOL
HIGH PRESSURE SWITCH
FUSE (1A) (250V)
FET ARRAY
FUSE (3.15A) (250V)
HPS
F911
F912
HC932
EXPANSION VALVE
REACTOR
POWER TRANSISTOR MODULE
L
IPM
LEV A~D
Page 30
9
High-pressure
protect thermistor
RT68
Compressor
Discharge
temperature
thermistor
RT61
R.V. coil
heating ON
cooling OFF
Refrigerant flow in cooling
Refrigerant flow in heating
Muffler
Outdoor
heat
exchanger
Muffler
LEV (A)
Evaporation
temperature
thermistor
RT63
LEV (B)
Strainer
#100
Strainer
Strainer
#100
Defrost
thermistor
RT62
Capillary tube
{3.0✕{1.8✕600
Capillary tube
{1.8✕{0.6✕750
Capillary tube
{3.0✕{2.0✕400
Capillary tube
{3.0✕{2.0✕400
Stop valve
(with service port)
Gas pipe temperature
B thermistor
Gas pipe temperature
A thermistor
Stop valve
Stop valve
Indoor
Unit B
Indoor
Unit B
Indoor
Unit A
Indoor
Unit A
Stop valve
(with service port)
4-way valve
{8
{6
{6
{12
{12
Refrigerant piping length (one way, 2 unit total)
Calculation : Xg=20g/mx(Refrigerant piping length(m)-20)
Indoor
units
a
Outdoor
unit
b
H
H
H
Outdoor unit
precharged
30m
200
20m
0
25m
100
1,750
REFRIGERANT SYSTEM DIAGRAM
MXZ-A14WV MXZ-A14WV MXZ-A18WV MXZ-A18WV -
E1
E2
E1
E2
Unit:mm
MAX REFRIGERANT PIPING LENGTH
Piping length each indoor unit (a, b) 20m
Total piping length (a+b) 30m
Height difference between units (H) 10m
Bending point for each unit 15
Total bending point 30
❋It does not matter which unit is higher.
● Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes, refer to the
● When diameter of refrigerant pipe is different from that of outdoor unit union, use optional Different-diameter pipe.
tables below.
For further information on Different-diameter pipe, refer to 15-1.
Indoor unit
class Pipe diameter
07/09
12
Liquid 6.35(1/4) Liquid 6.35(1/4)
Gas 9.52(3/8) Gas 9.52(3/8)
Liquid 6.35(1/4) Liquid 6.35(1/4)
Gas 12.7(1/2) Gas 12.7(1/2)
Extension pipe diameter
30
Indoor unit A
Indoor unit B
Outdoor unit union diameter
For
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Unit : mm (inch)
Page 31
Ball valve with
service port
Ball valve with
service port
Distributor
Strainer
#100
Receiver
LEV A
LEV B
LEV C
Oil separator
Compressor
High-pressure
switch
Service port
Defrost
thermistor
RT62
Distributor
Muffler
4-way valve
LEV E
Outdoor
heat
exchanger
Indoor unit
C
Unit C gas pipe
temperature thermistor
[9.52
[6.35
[6.35
[6.35
Indoor unit
B
Unit B gas pipe
temperature thermistor
[9.52
Indoor unit
A
Indoor unit
A
Indoor unit
B
Indoor unit
C
Unit A gas pipe
temperature thermistor
[12.7
[16
[16
[16
[16
[16
Evaporation
temperature
thermistor
RT63
Capillary tube
[2.0✕[0.6✕750
Capillary tube
[4.0✕[2.4✕400
Capillary tube
[2.5✕[0.6✕1000
[9.52
[6
Capillary tube
[4.0✕[2.8✕ 90
Capillary tube
[4.0✕[2.8✕ 90
Capillary tube
[4.0✕[2.8✕ 90
Discharge
temperature
thermistor RT61
Strainer
#100
Strainer
#100
Strainer
#100
R.V. coil
heating ON
cooling OFF
Refrigerant flow in cooling
Refrigerant flow in heating
Outdoor heat
exchanger
temperature
thermistor
RT68
a
b
c
Outdoor
unit
Indoor
units
H
H
H
Refrigerant piping length (one way, 3 unit total)
Calculation : Xg=20g/mx(Refrigerant piping length(m)-40)
Outdoor unit
precharged
50m
200
40m
0
45m
100
3,500
MXZ-A26WV -
E1
Unit:mm
MAX REFRIGERANT PIPING LENGTH
Piping length each indoor unit (a, b, c) 25m
Total piping length (a+b+c) 50m
Height difference between units (H) 10m
Bending point for each unit 25
Total bending point 50
❋It does not matter which unit is higher.
● Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes,refer to the
tables below.
● When diameter of refrigerant pipe is different from that of outdoor unit union, use optional Different-diameter pipe.
For further information on Different-diameter pipe, refer to 15-1.
Indoor unit
class Pipe diameter
07/09
12
18
24
26
Liquid 6.35(1/4) Liquid 6.35(1/4)
Gas 9.52(3/8) Gas 9.52(3/8)
Liquid 6.35(1/4) Liquid 6.35(1/4)
Gas Gas 12.7(1/2)
Liquid 6.35(1/4) Liquid 6.35(1/4)
Gas 12.7(1/2) Gas 12.7(1/2)
Liquid 6.35(1/4) Liquid 6.35(1/4)
Gas 15.88(5/8) Gas 15.88(5/8)
Liquid 9.52(3/8) Liquid 9.52(3/8)
Gas 15.88(5/8) Gas 15.88(5/8)
9.52(3/8) or 12.7(1/2)
Extension pipe diameter
31
Indoor unit A
Indoor unit B
Indoor unit C
Outdoor unit union diameter
For
Liquid 6.35(1/4)
Gas 12.7(1/2)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Unit : mm (inch)
Page 32
a
b
c
d
Outdoor
unit
Indoor
units
H
H
H
Refrigerant piping length (one way, 4 unit total)
Calculation : Xg=20g/mx(Refrigerant piping length(m)-40)
Outdoor unit
precharged
60m
400
40m
0
50m
200
3,500
70m
600
MXZ-A32WV -
Indoor unit
D
Ball valve with
service port
Ball valve with
service port
Distributor
Receiver
LEV A
LEV B
LEV C
LEV D
Oil separator
Compressor
High-pressure
switch
Service port
Distributor
Muffler
4-way valve
LEV E
Outdoor
heat
exchanger
Unit D gas pipe
temperature thermistor
[9.52
Indoor unit
C
Unit C gas pipe
temperature thermistor
[9.52
[6.35
[6.35
[6.35
[6.35
Indoor unit
B
Unit B gas pipe
temperature thermistor
[12.7
Indoor unit
A
Indoor unit
A
Indoor unit
B
Indoor unit
C
Indoor unit
D
Unit A gas pipe
temperature thermistor
[12.7
[16
[16
[16
[16
[16
Capillary tube
[4.0✕[2.4✕400
Capillary tube
[2.5✕[0.6✕1000
[9.52
[6
Capillary tube
[4.0✕[2.8✕ 90
Discharge
temperature
thermistor RT61
Strainer
#100
Capillary tube
[2.0✕[0.6✕750
Strainer
#100
Strainer
#100
Strainer
#100
Strainer
#100
R.V. coil
heating ON
cooling OFF
Refrigerant flow in cooling
Refrigerant flow in heating
Defrost
thermistor
RT62
Evaporation
temperature
thermistor
RT63
Outdoor heat
exchanger
temperature
thermistor
RT68
E1
Unit:mm
MAX REFRIGERANT PIPING LENGTH
Piping length each indoor unit (a, b, c, d) 25m
Total piping length (a+b+c+d) 70m
Height difference between units (H) 10m
Bending point for each unit 25
Total bending point 70
❋It does not matter which unit is higher.
32
Extension pipe diameter
● Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes,refer to the
tables below.
● When diameter of refrigerant pipe is different from that of outdoor unit union, use optional Different-diameter pipe.
For further information on Different-diameter pipe, refer to 15-1.
class Pipe diameter
07/09
12
18
24
26
Indoor unit
Liquid 6.35(1/4) Liquid 6.35(1/4)
Gas 9.52(3/8) Gas 9.52(3/8)
Liquid 6.35(1/4) Liquid 6.35(1/4)
9.52(3/8) or 12.7(1/2)
Gas Gas 12.7(1/2)
Liquid 6.35(1/4) Liquid 6.35(1/4)
Gas 12.7(1/2) Gas 12.7(1/2)
Liquid 6.35(1/4) Liquid 6.35(1/4)
Gas 15.88(5/8) Gas 15.88(5/8)
Liquid 9.52(3/8) Liquid 9.52(3/8)
Gas 15.88(5/8) Gas 15.88(5/8)
Outdoor unit union diameter
For
Indoor unit A
Indoor unit B
Indoor unit C
Indoor unit D
Liquid 6.35(1/4)
Gas 12.7(1/2)
Liquid 6.35(1/4)
Gas 12.7(1/2)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Unit : mm (inch)
Page 33
10
Wet-and dry-bulb
thermometers
Wet-and dry-bulb
thermometers
PERFORMANCE CURVES
MXZ-A14WVMXZ-A14WVMXZ-A18WVMXZ-A18WVMXZ-A26WVMXZ-A32WV-
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
(5) Indoor intake air dry-bulb temperature : °CDB
(6) Outdoor intake air wet-bulb temperature : °CWB
(7) Total input : W
Indoor air wet/dry-bulb temperature difference on the left side of the following chart 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 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.
E1
E2
E1
E2
E1
E1
Cooling
}
Heating
}
INDOOR UNIT
33
OUTDOOR UNIT
Page 34
07 class
8.5
7.8
7.1
6.4
5.8
5.1
10.6
9.7
8.8
7.9
7.1
6.3
9.3
8.5
7.8
7.0
6.3
5.6
12 class
09 class
10-1. Capacity and the input curves
MXZ-A14WVMXZ-A14WVMXZ-A18WVMXZ-A18WV-
E1
E2
E1
E2
25.4
24.0
23.4
22.2
21.5
20.3
19.5
18.5
17.6
16.6
15.6
14.8
13.7
12.9
11.7
11.1
07 class
09 class
MXZ-A26WVMXZ-A32WV-
9.3
8.5
8.5
7.8
7.8
7.1
7.0
6.4
6.3
5.8
5.6
5.1
25.9
23.9
21.9
19.9
17.9
15.9
13.9
12.0
E1
E1
10.6
9.7
8.8
7.9
7.1
6.3
12 class
13.1
11.9
10.8
9.7
8.7
7.7
13.7
12.4
11.3
10.1
9.0
8.0
17.0
15.4
13.9
12.5
11.1
9.7
07 class
25.4
23.4
21.5
19.5
17.6
15.6
13.7
11.7
09 class
24.0
22.2
20.3
18.5
16.6
14.8
12.9
11.1
07 class
09 class
25.9
23.9
21.9
19.9
17.9
15.9
13.9
12.0
12 class
18 class
12 class
31.4
29.0
26.6
24.1
21.7
19.3
16.9
14.5
31.9
29.4
27.0
24.5
22.1
19.6
17.2
14.7
24 class
18 class
26 class
24 class
35.1
32.4
29.7
27.0
24.3
21.6
18.9
16.2
26 class
34
Page 35
10-2. Capacity and input correction by inverter output frequency
0 50 100 150
0.5
1.0
1.5
0 50 100 150
0.5
1.0
1.5
0 50 100 150
0.5
1.0
1.5
0 50 100 150
0.5
1.0
1.5
0 50 100 150
0.5
1.0
1.5
0 50 100 150
0.5
1.0
1.5
0 50 100 150
0.5
1.0
1.5
0 50 100 150
0.5
1.0
1.5
0 50 100 150
0.5
1.0
1.5
0 50 100 150
0.5
1.0
1.5
0 50 100 150
0.5
1.0
1.5
<COOL>Capacity
Frequency
Hz
Frequency
<COOL>Total input
Hz Hz
<HEAT>Capacity
Frequency
Frequency
<HEAT>Total input
Hz
<COOL>Capacity
Frequency
Hz
Frequency
<COOL>Total input
Hz
<HEAT>Capacity
Frequency
0 50 100 150
0.5
1.0
1.5
Frequency
<HEAT>Total input
Hz
<COOL>Capacity
Frequency
Hz
Frequency
<COOL>Total input
Hz
<HEAT>Capacity
Frequency
Hz
Hz
Frequency
<HEAT>Total input
Hz
1. 07-class unit in single operation
2. 09-class unit in single operation
3. 12-class unit in single operation
(OUTDOOR UNIT : MXZ-A14WV, MXZ-A18WV)
35
Page 36
(OUTDOOR UNIT:MXZ-A26WV, MXZ-A32WV)
0 50 100 150
0.5
1.0
1.5
<COOL>Capacity
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<COOL>Total input
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<HEAT>Capacity
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<COOL>Capacity
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<HEAT>Capacity
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<COOL>Capacity
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<HEAT>Capacity
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<COOL>Capacity
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<HEAT>Capacity
Frequency
Hz
1. 07-class unit in single operation
2. 09-class unit in single operation
3. 12-class unit in single operation
4. 18-class unit in single operation
0 50 100 150
0.5
1.0
1.5
<COOL>Capacity
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<COOL>Total input
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<HEAT>Capacity
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<HEAT>Total input
Frequency
Hz
5. 24-class unit in single operation
0 50 100 150
0.5
1.0
1.5
<HEAT>Total input
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<COOL>Total input
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<HEAT>Total input
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<COOL>Total input
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<HEAT>Total input
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<COOL>Total input
Frequency
Hz
0 50 100 150
0.5
1.0
1.5
<HEAT>Total input
Frequency
Hz
36
Page 37
6. 26-class unit in single operation
<COOL>Capacity
1.5
1.5
<COOL>Total input
1.5
<HEAT>Capacity
1.5
<HEAT>Total input
1.0
0.5
0 50 100 150
Frequency
1.0
0.5
Hz
0 50 100 150
Frequency
1.0
0.5
Hz
0 50 100 150
Frequency
1.0
0.5
Hz
0 50 100 150
Frequency
Hz
37
Page 38
10-3. Outdoor low pressure and outdoor unit current
1. 07-class unit in single operation (OUTDOOR UNIT : MXZ-A14WV, MXZ-A18WV)
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])
(1) COOL operation
1Both indoor and outdoor units are under the same
temperature/humidity condition.
Dry-bulb temperature(°C) Relative humidity(%)
20 50
25 60
30 70
2Air flow speed : High
3Inverter output frequency : 33Hz
<How to work fixed-frequency operation>
1.Set emergency switch to COOL or HEAT. The switch is located
on indoor unit.
2.Press emergency operation button.
3.Compressor starts running at fixed-frequency.
4.Indoor fan runs at High speed and continues for 30 minutes.
5.To cancel this operation, press emergency operation button
or any button on remote controller.
(kgf/F[Gauge])
15
14
13
12
11
10
9
8
Outdoor low pressure
7
6
5
(MPa[Gauge])
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
15
Ambient temperature(:)/ Ambient humidity(%)
20 25
50 60
(2) HEAT operation
1Indoor Outdoor
2Set air flow to High speed.
3Inverter output frequency is 45Hz.
DB(°C) 20.0
WB(°C) 14.5
33Hz
Outdoor unit current (A)
(:)
30
70
DB(°C) 2 7 15 20.0
WB(°C) 1 6 12 14.5
35
(%)
5
4
33Hz
3
2
1
15
Ambient temperature(:)/ Ambient humidity(%)
8
20 25 30
50 60 70
35
(:)
(%)
7
6
5
4
Outdoor unit current (A)
3
2
38
45Hz
5 10 15 20 25
Ambient temperature(:)
Page 39
2. 09-class unit in single operation (OUTDOOR UNIT : MXZ-A14WV, MXZ-A18WV)
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])
(1) COOL operation
1Both indoor and outdoor units are under the same
temperature/humidity condition.
Dry-bulb temperature(°C) Relative humidity(%)
20 50
25 60
30 70
2Air flow speed : High
3Inverter output frequency : 33Hz
(kgf/F[Gauge])
15
14
13
12
11
10
9
8
Outdoor low pressure
7
6
5
(MPa[Gauge])
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
15
Ambient temperature(:)/ Ambient humidity(%)
20 25
50 60
33Hz
30
70
<How to work fixed-frequency operation>
1.Set emergency switch to COOL or HEAT. The switch is located
on indoor unit.
2.Press emergency operation button.
3.Compressor starts running at fixed-frequency.
4.Indoor fan runs at High speed and continues for 30 minutes.
5.To cancel this operation, press emergency operation button
or any button on remote controller.
5
4
33Hz
3
Outdoor unit current (A)
2
35
(:)
(%)
1
15
Ambient temperature(:)/ Ambient humidity(%)
20 25 30
50 60 70
35
(:)
(%)
(2) HEAT operation
1Indoor Outdoor
2Set air flow to High speed.
3Inverter output frequency is 45Hz.
DB(°C) 20.0
WB(°C) 14.5
DB(°C) 2 7 15 20.0
WB(°C) 1 6 12 14.5
8
7
6
5
4
Outdoor unit current (A)
3
2
45Hz
5 10 15 20 25
Ambient temperature(:)
39
Page 40
3. 12-class unit in single operation (OUTDOOR UNIT : MXZ-A14WV, MXZ-A18WV)
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])
(1) COOL operation
1Both indoor and outdoor units are under the same
temperature/humidity condition.
Dry-bulb temperature(°C) Relative humidity(%)
20 50
25 60
30 70
2Air flow speed : High
3Inverter output frequency : 33Hz
<How to work fixed-frequency operation>
1.Set emergency switch to COOL or HEAT. The switch is located
on indoor unit.
2.Press emergency operation button.
3.Compressor starts running at fixed-frequency.
4.Indoor fan runs at High speed and continues for 30 minutes.
5.To cancel this operation, press emergency operation button
or any button on remote controller.
(kgf/F[Gauge])
15
14
13
12
11
10
9
8
Outdoor low pressure
7
6
5
(MPa[Gauge])
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
15
Ambient temperature(:)/ Ambient humidity(%)
20 25
50 60
(2) HEAT operation
1Indoor Outdoor
2Set air flow to High speed.
3Inverter output frequency is 45Hz.
DB(°C) 20.0
WB(°C) 14.5
33Hz
Outdoor unit current (A)
(:)
30
70
DB(°C) 2 7 15 20.0
WB(°C) 1 6 12 14.5
35
(%)
5
4
33Hz
3
2
1
15
Ambient temperature(:)/ Ambient humidity(%)
20 25 30
50 60 70
35
(:)
(%)
40
8
7
6
5
4
Outdoor unit current (A)
3
2
5 10 15 20 25
Ambient temperature(:)
45Hz
Page 41
4. 07-class unit in single operation (OUTDOOR UNIT : MXZ-A26WV, MXZ-A32WV)
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])
(1) COOL operation
1Both indoor and outdoor units are under the same
temperature/humidity condition.
Dry-bulb temperature(°C) Relative humidity(%)
20 50
25 60
30 70
2Air flow speed : High
3Inverter output frequency : 24Hz
(kgf/F[Gauge])
12
11
10
9
8
(MPa[Gauge])
1.2
24Hz
1.1
1.0
0.9
0.8
Outdoor low pressure
7
0.7
<How to work fixed-frequency operation>
1.Set emergency switch to COOL or HEA T. The switch is located
on indoor unit.
2.Press emergency operation button.
3.Compressor starts running at fixed-frequency.
4.Indoor fan runs at High speed and continues for 30 minutes.
5.To cancel this operation, press emergency operation button
or any button on remote controller.
5
4
24Hz
3
2
Outdoor unit current (A)
6
0.6
15
Ambient temperature(:)/ Ambient humidity(%) Ambient temperature(:)/ Ambient humidity(%)
(2) HEAT operation
1Indoor Outdoor
2Set air flow to High speed.
3Inverter output frequency is 32Hz.
DB(°C) 20.0
WB(°C) 14.5
20 25
50 60
1
(:)
30
70
DB(°C) 2 7 15 20.0
WB(°C) 1 6 12 14.5
35
15
(%)
7
6
5
4
Outdoor unit current (A)
3
20 25
50 60
30
70
32Hz
35
(:)
(%)
41
2
5 10 15 20 25
Ambient temperature(:)
Page 42
5. 09-class unit in single operation (OUTDOOR UNIT : MXZ-A26WV, MXZ-A32WV)
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])
(1) COOL operation
1Both indoor and outdoor units are under the same
temperature/humidity condition.
Dry-bulb temperature(°C) Relative humidity(%)
20 50
25 60
30 70
2Air flow speed : High
3Inverter output frequency : 24Hz
<How to work fixed-frequency operation>
1.Set emergency switch to COOL or HEA T. The switch is located
on indoor unit.
2.Press emergency operation button.
3.Compressor starts running at fixed-frequency.
4.Indoor fan runs at High speed and continues for 30 minutes.
5.To cancel this operation, press emergency operation button
or any button on remote controller.
(kgf/F[Gauge])
12
11
10
1.2
1.1
1.0
0.9
9
0.8
8
(MPa[Gauge])
Outdoor low pressure
7
0.7
6
0.6
15
Ambient temperature(:)/ Ambient humidity(%)
(2) HEAT operation
1Indoor Outdoor
2Set air flow to High speed.
3Inverter output frequency is 32Hz.
DB(°C) 20.0
WB(°C) 14.5
20 25
50 60
5
24Hz
4
3
2
Outdoor unit current (A)
1
(:)
30
70
DB(°C) 2 7 15 20.0
WB(°C) 1 6 12 14.5
35
15
(%)
24Hz
20 25
50 60
Ambient temperature(:)/ Ambient humidity(%)
30
70
35
(:)
(%)
42
7
6
5
4
Outdoor unit current (A)
3
2
5 10 15 20 25
Ambient temperature(:)
32Hz
Page 43
6. 12-class unit in single operation (OUTDOOR UNIT : MXZ-A26WV, MXZ-A32WV)
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])
(1) COOL operation
1Both indoor and outdoor units are under the same
temperature/humidity condition.
Dry-bulb temperature(°C) Relative humidity(%)
20 50
25 60
30 70
2Air flow speed : High
3Inverter output frequency : 24Hz
<How to work fixed-frequency operation>
1.Set emergency switch to COOL or HEA T. The switch is located
on indoor unit.
2.Press emergency operation button.
3.Compressor starts running at fixed-frequency.
4.Indoor fan runs at High speed and continues for 30 minutes.
5.To cancel this operation, press emergency operation button
or any button on remote controller.
(kgf/F[Gauge])
13
12
11
10
9
(MPa[Gauge])
1.3
1.2
1.1
1.0
0.9
Outdoor low pressure
8
0.8
7
0.7
15
Ambient temperature(:)/ Ambient humidity(%)
(2) HEAT operation
1Indoor Outdoor
2Set air flow to High speed.
3Inverter output frequency is 32Hz.
DB(°C) 20.0
WB(°C) 14.5
20 25
50 60
5
24Hz
4
3
2
Outdoor unit current (A)
1
(:)
30
70
DB(°C) 2 7 15 20.0
WB(°C) 1 6 12 14.5
35
15
(%)
24Hz
20 25
50 60
Ambient temperature(:)/ Ambient humidity(%)
30
70
35
(:)
(%)
43
7
6
5
4
Outdoor unit current (A)
3
2
5 10 15 20 25
Ambient temperature(:)
32Hz
Page 44
7. 18-class unit in single operation (OUTDOOR UNIT : MXZ-A26WV, MXZ-A32WV)
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])
(1) COOL operation
1Both indoor and outdoor units are under the same
temperature/humidity condition.
Dry-bulb temperature(°C) Relative humidity(%)
20 50
25 60
30 70
2Air flow speed : High
3Inverter output frequency : 24Hz
<How to work fixed-frequency operation>
1.Set emergency switch to COOL or HEA T. The switch is located
on indoor unit.
2.Press emergency operation button.
3.Compressor starts running at fixed-frequency.
4.Indoor fan runs at High speed.
5.To cancel this operation, press emergency operation button
or any button on remote controller.
(kgf/F[Gauge])
13
12
11
10
1.3
1.2
1.1
1.0
0.9
9
(MPa[Gauge])
Outdoor low pressure
8
0.8
7
0.7
15
Ambient temperature(:)/ Ambient humidity(%)
(2) HEAT operation
1Indoor Outdoor
2Set air flow to High speed.
3Inverter output frequency is 32Hz.
DB(°C) 20.0
WB(°C) 14.5
20 25
50 60
24Hz
4
3
5
2
Outdoor unit current (A)
1
(:)
30
70
DB(°C) 2 7 15 20.0
WB(°C) 1 6 12 14.5
35
15
(%)
7
24Hz
20 25
50 60
Ambient temperature(:)/ Ambient humidity(%)
30
70
35
(:)
(%)
44
6
5
4
Outdoor unit current (A)
3
2
5 10 15 20 25
Ambient temperature(:)
32Hz
Page 45
8. 24-class unit in single operation (OUTDOOR UNIT : MXZ-A26WV, MXZ-A32WV)
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])
(1) COOL operation
1Both indoor and outdoor units are under the same
temperature/humidity condition.
Dry-bulb temperature(°C) Relative humidity(%)
20 50
25 60
30 70
2Air flow speed : High
3Inverter output frequency : 24Hz
<How to work fixed-frequency operation>
1.Set emergency switch to COOL or HEA T. The switch is located
on indoor unit.
2.Press emergency operation button.
3.Compressor starts running at fixed-frequency.
4.Indoor fan runs at High speed.
5.To cancel this operation, press emergency operation button
or any button on remote controller.
(kgf/F[Gauge])
14
13
12
11
10
(MPa[Gauge])
1.4
1.3
1.2
1.1
1.0
Outdoor low pressure
9
0.9
8
0.8
15
Ambient temperature(:)/ Ambient humidity(%)
(2) HEAT operation
1Indoor Outdoor
2Set air flow to High speed.
3Inverter output frequency is 32Hz.
DB(°C) 20.0
WB(°C) 14.5
20 25
50 60
5
24Hz
4
3
2
Outdoor unit current (A)
1
(:)
30
70
DB(°C) 2 7 15 20.0
WB(°C) 1 6 12 14.5
35
15
(%)
7
24Hz
20 25
50 60
Ambient temperature(:)/ Ambient humidity(%)
30
70
35
(:)
(%)
45
6
5
4
Outdoor unit current (A)
3
2
5 10 15 20 25
Ambient temperature(:)
32Hz
Page 46
9. 26-class unit in single operation (OUTDOOR UNIT : MXZ-A26WV, MXZ-A32WV)
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])
(1) COOL operation
1Both indoor and outdoor units are under the same
temperature/humidity condition.
Dry-bulb temperature(°C) Relative humidity(%)
20 50
25 60
30 70
2Air flow speed : High
3Inverter output frequency : 24Hz
<How to work fixed-frequency operation>
1.Set emergency switch to COOL or HEA T. The switch is located
on indoor unit.
2.Press emergency operation button.
3.Compressor starts running at fixed-frequency.
4.Indoor fan runs at High speed.
5.To cancel this operation, press emergency operation button
or any button on remote controller.
(kgf/F[Gauge])
14
13
12
11
10
(MPa[Gauge])
1.4
1.3
1.2
1.1
1.0
Outdoor low pressure
9
0.9
8
0.8
15
Ambient temperature(:)/ Ambient humidity(%)
(2) HEAT operation
1Indoor Outdoor
2Set air flow to High speed.
3Inverter output frequency is 32Hz.
DB(°C) 20.0
WB(°C) 14.5
20 25
50 60
5
24Hz
4
3
2
Outdoor unit current (A)
1
(:)
30
70
DB(°C) 2 7 15 20.0
WB(°C) 1 6 12 14.5
35
15
(%)
24Hz
20 25
50 60
Ambient temperature(:)/ Ambient humidity(%)
30
70
35
(:)
(%)
46
7
6
5
4
Outdoor unit current (A)
3
2
5 10 15 20 25
Ambient temperature(:)
32Hz
Page 47
11
Discharge temperature thermistor
Indoor pipe temperature thermistor
Defrost thermistor
Evaporation temperature thermistor
Gas pipe temperature thermistor
Fin temperature thermistor
High-pressure protect thermistor
Capacity code
Purpose
Protection
Defrosting Protection
Defrosting
Control
Control
Protection
Protection
Control
Compressor LEV
Outdoor
fan motor
Reversing
valve
Sensor
Actuator
Discharge temperature thermistor
Indoor pipe temperature thermistor
Defrost thermistor
Evaporation temperature thermistor
Gas pipe temperature thermistor
Fin temperature thermistor
Outdoor heat exchanger temperature
Capacity code
Purpose
Protection
Defrosting Protection
Defrosting
Control
Control
Protection
Protection
Control
Compressor LEV
Outdoor
fan motor
Reversing
valve
Sensor
Actuator
ACTUATOR CONTROL
MXZ-A14WVMXZ-A14WVMXZ-A18WVMXZ-A18WV-
E1
E2
E1
E2
Relation between main sensor and actuator
Relation between main sensor and actuator.
MXZ-A14WV, MXZ-A18WV
MXZ-A26WV, MXZ-A32WV
47
Page 48
12
Operation start
Check the outdoor unit
LED indicator.
Refer to12-3.
"A Check of power supply".
• Indoor unit
serial signal
error
Refer to12-3.
"B Check of
serial signal".
• COOL or
HEAT
operation only
Refer to12-3.
"C Check of
R.V. coil".
• When cooling,
room does not
cool.
Refer to12-3.
"E Check of
inverter/
compressor".
• When cooling, heat
exchanger of
non-operating indoor
unit frosts.
•When heating, nonoperating indoor unit
gets warm.
Refer to12-3.
"D Check of LEV".
• When cooling,
dew drops in the
non-operating
indoor unit.
Check of mispiping
• When heating,
room does not get
warm.
Refer to12-3.
"E Check of inverter
/ compressor".
Check mis-piping,
shortage of capacity.
Refer to 12-3.
Troubleshooting check table.
OFF
Both LED 1 and
LED 2 lighting
LED 1 or LED 2
has blinked.
Lead wiring
Housing point
TROUBLESHOOTING
MXZ-A14WV- MXZ-A18WV- MXZ-A26WV- MXZ-A32WVMXZ-A14WV- MXZ-A18WV-
E2E2
E1E1E1E1
12-1. Cautions on troubleshooting
1. Before troubleshooting, check the following:
1) Check the power supply voltage.
2) Check the indoor/outdoor connecting wire for mis-wiring.
2. Take care the following during servicing.
1) Before servicing the air conditioner, be sure to turn off the unit first with the remote controller, and then after confirming the horizontal vane is closed, turn off the breaker and/or disconnect the power plug.
2) Be sure to turn OFF the power supply before removing the front panel, the cabinet, the top panel, and the electronic
control P.C. board.
3) When removing the electrical parts, be careful to the residual voltage of smoothing capacitor.
4) When removing the electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the
components.
5) When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires.
3. Troubleshooting procedure
1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality.
To make sure, check how many times the abnormality indication is flashing on and off before starting service work.
2) If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and the
components for bursting and discoloration.
3) When troubleshooting, refer to 12-2. and 12-3..
12-2. Instruction of troubleshooting
• Check the indoor unit with referring to the indoor unit service manual, and confirm that there is any problem in the indoor
unit.
Then, check the outdoor unit with referring to this page.
MXZ-A14WV- MXZ-A18WV- MXZ-A26WV- MXZ-A32WVMXZ-A14WV- MXZ-A18WV-
E2E2
48
E1E1E1E1
Page 49
12-3. Troubleshooting check table
Indication
Abnormal point Condition
Symptom: Outdoor unit does not operate.
Correspondence
LED 1
(Red)
Lighting Twice Outdoor power system
When the compressor operation has been interrupted by over current
protection continuously three times within 1 minute after start-up.
• Check the inverter/compressor.
Lighting 8 times Active filter module
When active filter module self-protection has been performed
continuously three times.
• Replace the outdoor electronic control
P.C. board.
• Replace the outdoor electronic control
P.C. board.
• Check the abnormality indication on the
indoor unit.
• Check the LEV.
Lighting 7 times Outdoor control system
Lighting Once Indoor unit and LEV
When the nonvolatile memory data cannot be read properly on the
outdoor electronic control P.C. board.
• Replace the outdoor electronic control
P.C. board.
Lighting 9 times
DC voltage sensing
circuit
When DC voltage sensing circuit detects 57V or below or 395V or above.
When the drain abnormality is detected in the indoor unit and the indoor
unit coil temperature is too low, or when any abnormality is detected in
the components of indoor unit.
LED 2
(Yellow)
Indication
Abnormal point Condition
Symptom: It is repeated that outdoor unit stops and restarts 3 minutes later.
Correspondence
LED 1
(Red)
Lighting
High-pressure protect
thermistor
When high-pressure protect thermistor is short or open while
compressor is operating.
• Replace the outdoor electronic control
P.C. board.
• Check the amount of gas and the
refrigerant cycle.
• Check the outdoor unit air passage.
• Check the characteristic of the discharge
temperature thermistor.
• Check the connector. (CN662)
Lighting 3 times
Discharge temperature
thermistor
When a short or open circuit occurs in the discharge temperature
thermistor during compressor operating.
Twice Goes out
Overcurrent protection When overcurrent is applied to the power module.
5 times Goes out
High-pressure protection
When high-pressure protect thermistor detects 69: or more.
3 times Goes out
Discharge temperature
overheat protection
When the discharge temperature thermistor detects 116: or above.
(Protection will be released at 100: or below.)
4 times Goes out
Fin temperature
overheat protection
When the fin temperature thermistor detects 87: or above.
4 times Goes out
P.C. board temperature
overheat protection
When the P.C. board temperature thermistor detects 70: or above.
• Check the characteristic of the evaporation
temperature thermistor.
• Check the connector. (CN662)
• Check the characteristic of the high
pressure protect thermistor.
• Check the connector. (CN662)
Lighting 5 times
5 times
Evaporation temperature
thermistor
When a short or open circuit occurs in the evaporation temperature
thermistor during compressor operating.
• Check the characteristic of the gas pipe
temperature A thermistor.
• Check the connector. (CN661)
Lighting 10 times
Gas pipe temperature A
thermistor
When a short or open circuit occurs in the gas pipe temperature A
thermistor during compressor operating.
• Check the characteristic of the gas pipe
temperature B thermistor.
• Check the connector. (CN661)
• Check the outdoor unit air passage.
• Check the outdoor fan motor.
• Check the power module.
• Check the outdoor unit air passage.
• Check the outdoor fan motor.
• Replace the outdoor electronic control
P.C. board.
• Check the outdoor unit air passage.
• Check the outdoor fan motor.
• Check the inverter/compressor.
• Check the amount of gas.
• Check the indoor/outdoor air flow for
short cycle.
• Check the indoor unit air filter for clogging.
Gas pipe temperature B
thermistor
When a short or open circuit occurs in the gas pipe temperature B
thermistor during compressor operating.
• Check the characteristic of the fin
temperature thermistor.
• Check the connector. (CN663)
Lighting 4 times
Fin temperature
thermistor
When a short or open circuit occurs in the fin temperature thermistor
during compressor operating.
P.C. board temperature
thermistor
When a short or open circuit occurs in the P.C. board temperature
thermistor during compressor operating.
LED 2
(Yellow)
MXZ-A14WV- MXZ-A18WVMXZ-A14WV- MXZ-A18WV-
E1E1
E2E2
LED 1 (Red)
Lighting
LED 2 (Yellow)
Lighting
Error mode
Normal
49
Page 50
Indication
Abnormal point Condition
Symptom: Outdoor unit operates.
Correspondence
LED 1
(Red)
Lighting 6 times Power factor detection When the compressor power factor cannot be detected. • Check the compressor wiring.
• Check the characteristic of the defrost
temperature thermistor.
• Check the connector. (CN662)
Lighting9 times Service mode
Lighting 5 times Defrost thermistor
When operating unit with compressor relay connector disconnected.
Lighting8 times
Active filter module protection
When active filter module self-protection has been performed.
When a short or open circuit occurs in the defrost thermistor during
heating.
LED 2
(Yellow)
Indication
Abnormal point Condition
Symptom: Outdoor unit operates (The compressor operates at reduced frequency)
Correspondence
LED 1
(Red)
These symptoms do not mean any
abnormality of the product, but check
the following points.
• Air filter clogging
• Amount of gas
• Short cycle of indoor/outdoor air flow
Once Lighting Current protection
When the outdoor unit input current exceeds 13A.
6 times Lighting Overload protection
When the compressor load exceeds the specified value.
Twice Lighting
High-pressure protection
When indoor gas pipe temperature exceeds 55˚C during heating.
Twice Lighting Defrosting in cooling
When indoor gas pipe temperature falls to 6˚C or below during cooling.
3 times Lighting
Discharge temperature
protection
When the discharge temperature exceeds 104˚C.
4 times Lighting
Low discharge
temperature protection
When the state with low discharge temperature of which 37˚C or below
in COOL and 35
˚C
or below in HEAT for lasts 20 minutes.
5 times Lighting
High-pressure protection
When high-pressure protect thermistor detects 58: or more.
LED 2
(Yellow)
50
Page 51
MXZ-A26WV -
Indication
Abnormal point Condition
Symptom: It is repeated that outdoor unit stops and restarts 3 minutes later.
Correspondence
LED 1
(Red)
Lighting
Outdoor heat exchanger
temperature thermistor
When outdoor heat exchanger temperature thermistor is short or open
while compressor is operating.
• Replace the outdoor electronic control
P.C. board.
• Check the amount of gas and the
refrigerant cycle.
• Check the outdoor unit air passage.
• Check the characteristic of the discharge
temperature thermistor.
• Check the connector. (CN661)
Lighting 3 times
Discharge temperature
thermistor
When a short or open circuit occurs in the discharge temperature
thermistor during compressor operating.
Twice Goes out
Overcurrent protection When overcurrent is applied to the power module.
3 times Goes out
Discharge temperature
overheat protection
When the discharge temperature thermistor detects 116: or above.
(Protection will be released at 100: or below.)
4 times Goes out
Fin temperature
overheat protection
When the fin temperature thermistor detects 87: or above.
• Check the characteristic of the evaporation
temperature thermistor.
• Check the connector. (CN661)
• Check the characteristic of the outdoor
heat exchanger temperature thermistor.
• Check the connector. (CN661)
Lighting 5 times
5 times
Lighting Current sensor
When the output from compressor current sensor becomes 25A or
more while the compressor is operating.
• Check if the connection lead wires of com-
pressor are correctly connected.
6 times
Evaporation temperature
thermistor
When a short or open circuit occurs in the evaporation temperature
thermistor during compressor operating.
• Check if the connection wires between
outdoor electronic control P.C. board and
power board are correctly connected.
Lighting 11 times
Communication error
between P.C. boards
When the communication failure between the outdoor electronic control
P.C. board and power board occurs twice consecutively.
• Check if the connection wires between
noise filter P.C. board and power board are
correctly connected.
Lighting
12 times
Zero cross signal error
When zero cross signal cannot be detected while the compressor is
operating.
• Check the characteristic of the gas pipe
temperature A thermistor.
• Check the connector. (CN662)
Lighting 10 times
Gas pipe temperature A
thermistor
When a short or open circuit occurs in the gas pipe temperature A
thermistor during compressor operating.
• Check the characteristic of the gas pipe
temperature B thermistor.
• Check the connector. (CN662)
• Check the outdoor unit air passage.
• Check the outdoor fan motor.
• Check the power module.
• Check the inverter/compressor.
• Check the amount of gas.
• Check the indoor/outdoor air flow for
short cycle.
• Check the indoor unit air filter for clogging.
Gas pipe temperature B
thermistor
When a short or open circuit occurs in the gas pipe temperature B
thermistor during compressor operating.
• Check the characteristic of the gas pipe
temperature C thermistor.
• Check the connector. (CN662)
Gas pipe temperature C
thermistor
When a short or open circuit occurs in the gas pipe temperature C
thermistor during compressor operating.
• Check the characteristic of the gas pipe
temperature D thermistor.
• Check the connector. (CN662)
Gas pipe temperature D
thermistor
When a short or open circuit occurs in the gas pipe temperature D
thermistor during compressor operating.
• Check the characteristic of the fin
temperature thermistor.
• Check the connector. (CN3)
Lighting 4 times
Fin temperature
thermistor
When a short or open circuit occurs in the fin temperature thermistor
during compressor operating.
P.C. board temperature
thermistor
When a short or open circuit occurs in the P.C. board temperature
thermistor during compressor operating.
LED 2
(Yellow)
MXZ-A32WV -
E1
E1
LED 1 (Red)
Lighting
Indication
LED 1
(Red)
Lighting Once Indoor unit and LEV
Lighting Twice Outdoor power system
Lighting 7 times Outdoor control system
LED 2
(Yellow)
LED 2 (Yellow)
Lighting
Symptom: Outdoor unit does not operate.
Abnormal point Condition
When the drain abnormality is detected in the indoor unit and the indoor
unit coil temperature is too low, or when any abnormality is detected in
the components of indoor unit.
When the compressor operation has been interrupted by over current
protection continuously three times within 1 minute after start-up, or
when power factor control module protection or DC control protection is
activated three times within 3 minutes after the compressor get started.
When the nonvolatile memory data cannot be read properly on the
outdoor electronic control P.C. board.
Error mode
Normal
• Check the abnormality indication on the
indoor unit.
• Check the LEV.
• Check the inverter/compressor.
• Replace the outdoor electronic control
P.C. board.
Correspondence
51
Page 52
Indication
Abnormal point Condition
Symptom: Outdoor unit operates.
Correspondence
LED 1
(Red)
• Check the characteristic of the defrost
temperature thermistor.
• Check the connector. (CN661)
Lighting9 times Service mode
Lighting 5 times Defrost thermistor
When the unit operates EMERGENCY OPERATION.
When a short or open circuit occurs in the defrost thermistor during
heating.
LED 2
(Yellow)
Indication
Abnormal point Condition
Symptom: Outdoor unit operates (The compressor operates at reduced frequency)
Correspondence
LED 1
(Red)
These symptoms do not mean any
abnormality of the product, but check
the following points.
• Air filter clogging
• Amount of gas
• Short cycle of indoor/outdoor air flow
Once Lighting Current protection
When the outdoor unit input current exceeds 14.5A.
Twice Lighting
High-pressure protection
When indoor gas pipe temperature exceeds 55˚C during heating.
Twice Lighting Defrosting in cooling
When indoor gas pipe temperature falls to 6˚C or below during cooling.
3 times Lighting
Discharge temperature
protection
When the discharge temperature exceeds 104˚C.
4 times Lighting
Low discharge
temperature protection
When the state with low discharge temperature of which 37˚C or below
in COOL and 35
˚C
or below in HEAT lasts for 20 minutes.
5 times Lighting
High-pressure protection
When outdoor heat exchanger temperature thermistor detects 58: or
more.
LED 2
(Yellow)
Indication
Abnormal point Condition
Symptom: It is repeated that outdoor unit stops and restarts 3 minutes later
Correspondence
LED 1
(Red)
5 times Goes out
High-pressure protection
When outdoor heat exchanger temperature thermistor detects 69: or
more.
When high-pressure switch detects 4MPa or more.
4 times Goes out
P.C. board temperature
overheat protection
When the P.C. board temperature thermistor detects 70: or above.
• Check the outdoor unit air passage.
• Check the outdoor fan motor.
• Replace the outdoor electronic control
P.C. board.
• Check the outdoor unit air passage.
• Check the outdoor fan motor.
8 times Goes out
Power factor control
module protection
When the overcurrent to power factor controller occurs or the output
voltage from power factor controller becomes 400V or more.
• Check the input voltage.
• Check the inverter.
9 times Goes out
DC voltage protection
When it's detected that DC voltage becomes 200V or less, or reaches
400V or more.
• Check the voltage of power supply.
• Check the inverter.
13 times Goes out
Fan motor protection
When fan motor current is 2A or more, or when the abnormality is
detected in the feedback signal from fan motor.
• Check the outdoor fan motor.
• Check the fan motor connector.
LED 2
(Yellow)
52
Page 53
W
U
V
WHT
RED
BLK
WHT
Protector specification
Short
Open
87I15:
135I5:
YLW
P
ORN
RED
BLK
LEV
WHT
RED
YLW
BRN
ORN
BLU
U
RED
WHT
BLK
V
W
(W)
(V)
(U)
MXZ-A14WV- MXZ-A18WV- MXZ-A26WV- MXZ-A32WVMXZ-A14WV- MXZ-A18WV-
Part name Check method and criterion
Defrost thermistor
Evaporation/ Gas pipe/
High-pressure protect/
Outdoor heat exchanger
temperature thermistor
Discharge temperature
thermistor
Fin temperature thermistor
Measure the resistance using a tester.
(Part temperature : -10°C ~ 40°C)
Measure the resistance using a tester, after warming up the thermistor by holding by hand.
(Part temperature : 20°C ~ 40°C)
Measure the resistance using a tester.
(Part temperature : 10°C ~ 40°C)
E2E2
Normal abnormal
5kΩ ~ 55kΩ
Normal abnormal
100kΩ ~ 250kΩ
Normal abnormal
25kΩ ~ 100kΩ
E1E1E1E1
Open or short-circuit
Opened or short-circuit
Open or short-circuit
Compressor
Outdoor fan motor
MXZ-A14/
A18WV
MXZ-A26/
A32WV
R.V. coil
Measure the resistance between terminals using a tester.
(Winding temperature : -10°C ~ 40°C)
Normal
MXZ-A14/A18WV
1Each phase 2.25Ω ~ 2.76Ω
MXZ-A26/A32WV
1Each phase 1.29Ω ~ 1.49Ω
abnormal
Open or short-circuit
Measure the resistance between lead wires using a tester.
(Part temperature : -10°C ~ 40°C)
Color of lead
wire
WHT - BLK
BLK - YLW
BLK - RED
Color of lead
wire
Normal
MXZ-A14/A18WV
123.0Ω ~ 150.0Ω
30.0Ω ~ 36.0Ω
181.0Ω ~ 221.0Ω
Normal
MXZ-A26/A32WV
RED - BLK
BLK - WHT
13.4Ω ~ 16.4Ω
WHT - RED
Measure the resistance using a tester. (Part temperature : -10°C ~ 40°C)
Normal abnormal
2.6kΩ ~ 3.3kΩ
Open or short-circuit
abnormal
Open or
short-circuit
abnormal
Open or
short-circuit
Linear expansion valve
High pressure switch
(HPS)
Measure the resistance using a tester.(Part temperature : -10°C ~ 40°C)
Color of lead wire
Normal
WHT - RED
RED - ORN
YLW - BRN
37.4Ω ~ 53.9Ω
BRN - BLU
MXZ-A26/A32WV
Pressure Normal abnormal
HPS1
Operation OFF
3.7 ± 0.15MPa
0.05
+
4.8 MPa
0.1
-
Short
Open
53
Abnormal
Open or
short-circuit
Other than
those list-
ed at left
P Inner protector
Page 54
Turn on power supply.
No
Yes
Yes
No
No
Yes
Yes
No
Yes
Replace the reactor.
Start
Check the connecting of parts of main power supply circuit.
Is there voltage of 230V AC in the
power supply terminal block?
Is there voltage of 325V DC across the
smoothing capacity (C61)?
Check the power supply cable.
Replace the outdoor electronic control
P.C. board.
Replace the noise
filter P.C. board.
Is there voltage of 230V AC across the
input terminal part in the diode module
(TAB61 and TAB62)?
Is fuse (F61) blown?
Replace the fuse.
Is the resistance ∞ between terminal
of reactor (L) ?
Outdoor unit does not operate. (LED display: display OFF)
Turn on power supply.
No
Yes
Yes
No
No
Yes
No
Yes
Yes
No
Replace the power board.
Start
Check the connecting of parts of main power supply circuit.
Is there voltage of 230V AC in the
power supply terminal block?
Is the output voltage from the noise
filter P.C. board 230V AC?
Is the input voltage to the outdoor
electronic control P.C. board 325V DC?
Check the power supply cable.
Replace the outdoor electronic control
P.C. board.
Replace the noise
filter P.C. board.
Is fuse (F912) blown?
Is the input voltage to the power board
230V AC?
Replace the fuse.
Replace the reactor.
AA
Check of power supply
MXZ-A14/A18WV
MXZ-A26/A32WV
54
Page 55
Outdoor unit does not operate. (LED display: Both LED1 and LED2 lighting)
BB
Check of outdoor unit serial signal
Start
1. Check the indoor unit with referring to "How to check mis-wiring and serial signal error" in service manual of indoor unit.
2. Turn off the power supply of the indoor and outdoor unit and connect the indoor/ outdoor unit connecting wire correctly.
3. Check the connection of indoor/ outdoor unit connecting wire in the outdoor unit terminal block, and check the connection
of the connector CN601: unit A, CN602: unit B (MXZ-A14/A18WV)/ CN601: unitA, CN602: unitB, CN603: unitC, CN604:
unitD (MXZ-A26/A32WV) in the outdoor electronic control P.C. board.
4. Disconnect the lead wire to the compressor. 3 minutes after turning on the power supply, start EMERGENCY
OPERATION.
Is there voltage from 5V DC to 10V DC between
No. 3 (+) and N (-) in the outdoor terminal block?
Yes
Recheck a connected circumstance of the indoor/ outdoor unit connecting wire.
No
Replace the outdoor electronic control P.C. board.
55
Page 56
The cooling operation or heating operation does not operate. (LED display: Both LED1 and LED2 lighting)
CC
Check of R.V. coil
• When heating operation does not work.
Start
1. Disconnect the lead wire leading to the compressor.
2. 3 minutes after turning on the power supply, start EMERGENCY
OPERATION in HEAT mode.
Is there voltage of 230V AC between pin1 and
pin 2 at connector CN912?
Yes
Turn off power supply of indoor and outdoor unit.
Disconnect the connector
CN912 in noise filter P.C.
board. Is there normal
resistance to R.V. coil?
Yes
Replace the 4-way valve.
• When cooling operation does not work.
Start
1. Disconnect the lead wire leading to the compressor.
2. 3 minutes after turning on the power supply, start EMERGENCY
OPERATION in COOL mode.
No
Replace the R.V. coil.
No
1. Turn off power supply of indoor and outdoor unit, and
disconnect the connector CN851 (MXZ-A14/A18WV)/ CN781
(MXZ-A26/A32WV) in the outdoor electronic control P.C.
board.
2. 3 minutes after turning on the power supply, start
EMERGENCY OPERATION in HEAT mode.
Is there voltage 12V DC
between the connector CN851
pin 3 (+) and pin 4 (-) (MXZ-A14/
A18WV)/ CN781 pin 5 (+) and
pin 3 (-) (MXZ-A26/A32WV)?
Replace the noise filter P.C. board.
Yes
No
Replace the electronic
control P.C. board.
Is there voltage of 230V AC between pin1 and
pin 2 at connector CN912?
Yes
1. Turn off power supply of indoor and outdoor unit, and
disconnect the connector CN851 (MXZ-A14/A18WV)/ CN781
(MXZ-A26/A32WV) in the outdoor electronic control P.C.
board.
2. 3 minutes after turning on the power supply, start
EMERGENCY OPERATION in COOL mode.
Is there voltage 12V DC
between the connector CN851
pin 3 (+) and pin 4 (-) (MXZ-A14/
A18WV)/ CN781 pin 5 (+) and
pin 3 (-) (MXZ-A26/A32WV)? W
Yes
Replace the outdoor electronic control P.C. board.
No
Replace the noise filter P.C. board.
W If the connector CN912 is not connected or R.V. coil is open, voltage
occurs between terminals even when the control is OFF.
No
Replace the 4-way valve.
56
Page 57
• When cooling, heat exchanger of non-operating indoor unit frosts.
• When heating, non-operating indoor unit get warm.
DD
Check of LEV
LED display:
Start
Turn on power supply to the outdoor unit after checking LEV coil is mounted to the
LEV body securely.
Is "click - click" sound heard?
Or, do you feel vibration of the LEV coil with a hand?
No
Disconnect the connector
CN771: LEV A, CN772: LEV B (MXZ-A14/A18WV)/
CN791: LEV A, CN792: LEV B, CN793: LEV C,
CN794: LEVD, CN795: LEV E (MXZ-A26/A32WV).
Is there normal resistance to LEV coil?
No
Replace the LEV coil.
LED1 LED2
Lighting Lighting
Lighting Once
Yes
Yes
Replace the outdoor electronic
control P.C. board.
Normal
57
Page 58
• When heating, room does not get warm.
• When cooling, room does not get cool.
EE
Check of inverter/ compressor
MXZ-A14/A18WV
Start
Disconnect the terminal of the compressor at terminals. 3 minutes after turning on the power
supply, start EMERGENCY OPERATION.
Measure the voltage between each
lead wire leading to the compressor.
U (BLK) - V (WHT)
V (WHT) - W (RED)
W (RED) - U (BLK)
Output voltage
COOL: 150V(58Hz), HEAT: 150V (58Hz)
Is there voltage output? W
Yes
Is output balanced?
Yes
Turn off power supply of indoor and outdoor unit,
and measure the compressor winding resistance
between the compressor terminals.
Is there resistance of 0.53" to 0.66" between
the each terminals?
Yes
LED display:
No
LED1 LED2
Lighting Lighting
Lighting
Twice
W • After the outdoor fan starts running, wait for 1 minutes or more before
•The output voltage values have the tolerance of i20%.
No
Twice
Goes out
measuring the voltage.
Replace the outdoor electronic
control P.C. board.
Replace the
No
compressor.
Reconnect the lead wire of compressor to former, and
turn on power supply to indoor and outdoor unit.
3 minutes later, start EMERGENCY OPERATION.
Clarify the causes by counting time until the inverter stops.
0 to 10 seconds: compressor rare short
10 to 60 seconds: compressor lock
60 seconds to 5minutes: refrigerant circuit defective
5 minutes or more: normal
58
Page 59
MXZ-A26/A32WV
Start
Disconnect the terminal of the compressor.
3 minutes after turning on the power supply, start
EMERGENCY OPERATION.
W •After the outdoor fan starts running, wait for 1 minutes or more before
Measure the voltage between each
lead wire leading to the compressor.
U (BLK) - V (WHT)
V (WHT) - W (RED)
W (RED) - U (BLK)
Output voltage
COOL: 150V(48Hz) HEAT: 170V(64Hz)
Is there voltage output? W
Yes
Is output balanced?
Yes
Is the input voltage to the outdoor electronic
control P.C. board 370V or more?
Yes
Turn off power supply of indoor and outdoor unit,
and measure the compressor winding resistance
between the compressor terminals.
Is the resistance between each terminal normal?
Yes
Reconnect the lead wire of compressor, and turn on
power supply to indoor and outdoor unit.
3 minutes later, starts EMERGENCY OPERATION.
No
measuring the voltage.
•The output voltage values have the tolerance of i20%.
No
No
Replace the power board.
No
Replace the
compressor.
Clarify the causes by counting time until the inverter stops.
0 to 10 seconds: compressor rare short
10 to 60 seconds: compressor lock
60 seconds to 5minutes: refrigerant circuit defective
5 minutes or more: normal
59
Page 60
• When thermistor is abnormal.
Normal
Yes
No
Abnormal
Reconnect the connector CN661 and CN662 on the outdoor electronic control P.C. board and CN3 on the power
board, and disconnect the lead wire leading to the compressor.
3 minutes after turning on the power supply, start EMERGENCY OPERATION.
Thermistor
Discharge temperature thermistor
Defrost thermistor
Evaporation temperature thermistor
Outdoor heat exchanger temperature thermistor
Gas pipe temperature thermistor (Unit A)
Gas pipe temperature thermistor (Unit B)
Gas pipe temperature thermistor (Unit C)
Gas pipe temperature thermistor (Unit D)
Fin temperature thermistor
Symbol
RT61
RT62
RT63
RT68
RT6A
RT6B
RT6C
RT6D
RT65
Connector, Pin No.
Between CN661 pin3 and pin4
Between CN661 pin1 and pin2
Between CN661 pin5 and pin6
Between CN661 pin7 and pin8
Between CN662 pin1 and pin2
Between CN662 pin3 and pin4
Between CN662 pin5 and pin6
Between CN662 pin7 and pin8
Between CN3 pin1 and pin2
Start
Disconnect the connector in the electronic control P.C. board (see below table), and
measure the resistance of thermistor to check whether the thermistor is normal or not.
Does thermistor operate 10 minutes or more though the
thermistor abnormality is not displayed?
Replace the thermistor.
Normal
Replace the outdoor electronic
control P.C. board.
FF
Check of outdoor unit thermistors
MXZ-A14/A18WV
Start
Disconnect the connector in the outdoor electronic control P.C. board (see below table),
and measure the resistance of thermistor to check whether the thermistor is normal or not.
Normal
Reconnect the connector CN661, CN662 and CN663 on the outdoor electronic control P.C. board, and disconnect the lead wire leading to the compressor.
3 minutes after turning on the power supply, start EMERGENCY OPERATION.
Does thermistor operate 10 minutes or more though the
thermistor abnormality is not displayed?
Yes
Normal
Thermistor
Discharge temperature thermistor
Defrost thermistor
Evaporation temperature thermistor
High-pressure protect thermistor
Gas pipe temperature A thermistor
Gas pipe temperature B thermistor
Fin temperature thermistor
MXZ-A26/A32WV
Symbol
No
RT61
RT62
RT63
RT68
RT6A
RT6B
RT65
Replace the outdoor electronic
control P.C. board.
Connector, Pin No.
Between CN662 pin3 and pin4
Between CN662 pin1 and pin2
Between CN662 pin5 and pin6
Between CN662 pin7 and pin8
Between CN661 pin1 and pin2
Between CN661 pin3 and pin4
Between CN663 pin1 and pin2
Abnormal
Replace the thermistor.
60
Page 61
• Fan motor does not operate or stops operating shortly after starting the operation.
Yes
Yes
Yes
No
No
(Fixed to either 5V or 0V DC)
Start
Check the connection between the
connector CN931 and CN932.
Disconnect CN932 from outdoor electronic control P.C. board, and
turn on the power supply.
Rotate the outdoor fan motor manually and measure the voltage of
CN931.
Between 1(+) and 5(-)
Between 2(+) and 5(-)
Between 3(+) and 5(-)
Is the resistance between each terminal
of outdoor fan motor normal?
Does the outdoor fan motor rotates smoothly?
Does the voltage between each terminal become 5V DC and 0V DC
repeatedly?
Replace the outdoor DC fan motor.
Replace the outdoor electronic control P.C. board.
GG
Check of outdoor fan motor
MXZ-A14/A18WV
Start
Check the connection of connector CN851 in the fan motor relay connector and outdoor electronic control P.C. board
at the noise filter P.C. board and connector CN901 in the noise filter board.
Disconnect the fan motor connector, and measure the resistance of the
fan motor winding to check the winding characteristic.
Normal
1. Disconnect the lead wire leading to the compressor. 3 minutes after turning on the power supply,
start EMERGENCY OPERATION.
2. Check the voltage between pin 3 and pin 4, pin 3 and pin 5 at the fan motor connector.
Is there voltage of 230V AC?
No
1. Turn off power supply of the indoor and outdoor unit, and disconnect the connector
(CN851).
2. Is the voltage 0V, when the voltage between CN851 pin3 (+), pin7 (-), pin6 (-) are
measured after the power supply is turned on the outdoor unit?
Yes
3 minutes after turning on the power supply, start EMERGENCY OPERATION.
Is there voltage of 12V DC between CN851 pin3 (+) and pin6 (-)?
Yes
Replace the noise filter P.C. board.
Yes
Abnormal
MXZ-A26/A32WV
Replace the fan motor.
Replace the outdoor
No
electronic control P.C.
board.
No
61
Page 62
Infinity
0"
Yes
No
Start
1. Disconnect the connector CN681 in the electronic control P.C. board.
2. Check the resistance of HPS after 1 minutes have passed since the outdoor unit power supply was turned off.
Check the resistance between
each terminal.
Reconnect CN681.
Turn on power supply to the indoor and outdoor unit.
3 minutes later, starts EMERGENCY OPERATION.
Is HPS protection displayed
immediately after compressor
starts?
Replace HPS.
Replace the electronic control P.C. board.
Normal
• When the operation frequency does not go up from lowest frequency.
HH
Check of HPS
MXZ-A26/A32WV
II
The other cases
Indoor unit dose not operate. (different operating models in multi system)
• When you try to run two indoor unit simultaneously, one for cooling and the other for heating, the unit which
transmits signal to the outdoor units earlier decides the operation mode. The other unit indicates as shown in
the figure below.
• When the above situation occurs, set all the indoor units to the same mode, turn OFF the indoor units, and
then turn them back ON.
• Though the top of the indoor unit sometimes gets warm, this does not mean malfunction. The reason is that
the refrigerant gas continuously flows into the indoor unit even while it is not operating.
OPERATION INDICATOR
Lighting Blinking
62
Page 63
-20 -10 0 10 20 30 40
100
90
80
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80
200
180
160
140
120
100
80
60
40
20
0
0 10 20 30 40 50 60 70 80 90 100 110 120
700
600
500
400
300
200
100
0
Resistance (k')
Resistance (k')
Resistance (k')
Temperature (;)
Temperature (;)
Temperature (;)
Discharge temperature thermistor (RT61)
Defrost temperature thermistor (RT62)
Evaporation temperature thermistor (RT63)
Gas pipe temperature thermistor (RT6A,6B)
High-pressure protection thermistor (RT68)
Fin temperature thermistor (RT65)
MXZ-A14WV - MXZ-A18WV -
)
)
MXZ-A14WV - MXZ-A18WV Outdoor electronic control P.C. board
F801
FUSE
1A/250V
E1E1
E2E2
230V AC 50Hz
Input
LED 2
LED 1
(
(
CN601
5 ~ 10V DC
Serial signal Room A
CN602
5 ~ 10V DC
Serial signal Room B
(
(
(
(
Common (–)
Common (+)
(
CN772 Room B
Linear expansion valve (LEV)
12V DC pulse wave
Outdoor fan “High” (–)
Outdoor fan “Low” (–)
R.V. coil (–)
Common (–)
12V DC pulse wave
Rush current relay (–)
Common (+)
(
CN771 Room A
Linear expansion valve (LEV)
CN851
12V DC
(((
(
Discharge temperature thermistor (RT61)
CN
Defrost thermistor (RT62)
(
Gas pipe temperature B thermistor (RT6B)
CN
661
Gas pipe temperature Athermistor (RT6A)
(
(
(
Common (+)
Evaporation temperature thermistor (RT63)
High-pressure protect thermistor (RT68)
CN663 Fin temperature thermistor (RT65)
662
63
Page 64
MXZ-A26WV - MXZ-A32WV -
-20 -10 0 10 20 30 40
100
90
80
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80
200
180
160
140
120
100
80
60
40
20
0
Resistance (k')
Resistance (k')
Temperature (;)
Temperature (;)
Defrost temperature thermistor (RT62)
Evaporation temperature thermistor (RT63)
Gas pipe temperature thermistor (RT6A,6B)
Outdoor heat exchanger temperature thermistor (RT68)
Fin temperature thermistor (RT65)
0 10 20 30 40 50 60 70 80 90 100 110 120
700
600
500
400
300
200
100
0
Resistance (k')
Temperature (;)
Discharge temperature thermistor (RT61)
E1E1
Outdoor electronic control P.C. board
Evaporation temperature thermistor (RT63)
Discharge temperature thermistor (RT61)
temperature thermistor (RT68)
(
CN932
20-90V AC
(
To fan
motor
5V DC
pulse wave
5V
(
CN931
GND
Defrost thermistor (RT62)
(
(((
CN661
Outdoor heat exchanger
Signal reception
(From power board)
5V DC pulse wave
CN701
Signal transmission
(To power board)
5V DC pulse wave
(+)
(+)
(
GND
(–)
(–)
(
CN702
DC
(
Rush current relay
GND (power board)
15V
15V
(–)
12V
CN781
R.V. coil (–)
(+)
pulse wave
LEV E
(
(+)
(–)
(
(
CN795
12V DC
LED 1
LED 2
CN601
325V DC
~
370V DC
Input
F801
FUSE
3.15A/250V
(
Gas pipe Athermistor
CN662
(
(
(
Gas pipe C thermistor
Gas pipe B thermistor
Gas pipe D thermistor
CN681
(
High pressure switch
(+)
D
(
(
(–)
(
LEV Room
12V DC
pulse wave
CN794
(
(+)
pulse wave
LEV Room
C
64
(
(–)
(
12V DC
CN793
(+)
B
(
(
(–)
(
12V DC
pulse wave
LEV Room
CN792
(+)
A
(
(
(–)
(
12V DC
pulse wave
LEV Room
CN791
CN604
(+)
Serial signal Room D
(
(–)
5~10V DC
CN603
(+)
(
Serial signal Room C
(–)
5~10V DC
CN602
(+)
(
Serial signal Room B
(–)
5~10V DC
CN601
(+)
(
Serial signal Room A
(–)
5~10V DC
Page 65
MXZ-A14WV MXZ-A18WV -
E1
E1
Noise filter P.C. board
F911 FUSE
1A/250V
230V AC 50Hz
Output
CN912 R.V. Coil
230V AC
CN911
Outdoor Fan
Fan speed “High”
230V AC
CN911
Outdoor Fan
Fan speed “Low”
230V AC
F912 FUSE
3.15A/250V
NR63 VARISTOR
230V AC 50Hz
Input
MXZ-A14WV - MXZ-A18WV MXZ-A14WV - MXZ-A18WV -
Noise filter P.C. board
F912 FUSE
3.15A/250V
NR63 VARISTOR
F911 FUSE
1A/250V
230V AC 50Hz
Output
CN912 R.V. Coil
230V AC
CN911
Outdoor Fan
Fan speed “High”
230V AC
CN911
Outdoor Fan
Fan speed “Low”
230V AC
E1E1
E2E2
230V AC 50Hz
Input
65
Page 66
MXZ-A26WV MXZ-A32WV -
E1
E1
Noise filter P.C.board
Electronic
control
board
{
Power board
{
{
230V AC
50Hz
Input
R.V. coil
230V AC
230V AC
50Hz Output
MXZ-A26WV MXZ-A32WV -
E1
E1
Outdoor Power board
{
F911 FUSE
1A/250V
F912 FUSE
3.15A/250V
NR63 VARISTOR
Connect to
the compressor
Voltage among phases:
5V to 180V
325-370V DC
Output
(+)
(–)
(Red)
1
3
(White)
CN3
Fin temperature thermistor
CN2
Connect to the controller board
(+)1-5(–): Signal transmission (To electronic control P.C. board)
5V DC pulse wave
(+)2-5(–): Zero cross signal
3-4 : Not used
(+)6-5(–): 15V
(+)7-5(–): 15V
Connect to the
earth
Signal recep-
)
tion (From
electronic control P.C.
board)
5V DC pulse
wave
CN5
Primary current detection
(Connect to the noise filter)
66
Page 67
13
(1) Slide the sleeve and check if there is a locking lever or not. (2) The terminal with this connector has the locking
mechanism.
1Slide the sleeve.
2Pull the terminal while
pushing the locking
lever.
1Hold the sleeve, and
pull out the terminal
slowly.
The terminal which has the locking mechanism can be detached as shown below.
There are two types ( Refer to (1) and (2)) of the terminal with locking mechanism.
The terminal without locking mechanism can be detached by pulling it out.
Check the shape of the terminal before detaching.
<"Terminal with locking mechanism" Detaching points>
Connector
Sleeve
Locking lever
DISASSEMBLY INSTRUCTIONS
13-1. MXZ-A14WV - MXZ-A18WV -
MXZ-A14WV - MXZ-A18WV OUTDOOR UNIT
OPERATING PROCEDURE
1. Removing the cabinet.
1. Removing the cabinet.
(1) Remove the screws of the top panel.
(2) Remove the top panel.
(3) Remove the screw of the service panel.
(4) Remove the service panel.
(5) Remove the screws of the front panel.
Photo 3
Screws of the top panel
E1E1
E2E2
PHOTOS
Photo 1
Photo 2
Screws of the front panel
Screws of the top panel
Screws of the front panel
67
Screws of the
front panel
Screw
of the
service
panel
Screws of the
front panel
Page 68
OPERATING PROCEDURE
PHOTOS
2. Removing the inverter assembly
(1) Remove the top panel, service panel and front panel.
(2) Remove indoor/outdoor connecting wire and power supply
cable.
(3) Remove the compressor connector on the compressor side.
(4) Remove the connectors for fan motor, LEV, thermistor and
R.V. coil from the electronic control P.C. board.
(5) Remove the screws of the inverter assembly.
(6) Remove the inverter assembly.
3. Removing the Outdoor Electronic control P.C. board.
(1) Remove the top panel, service panel and front panel.
(2) Remove the connector coming out of the compressor.
(3) Remove the compressor connector, compressor relay
connector on the electronic control P.C. board side,
terminal of reactor and terminals of TAB4 and X64 of the
noise filter P.C. board coming out of the electronic control
P.C. board. (Fig. 1)
(4) Remove the screw fixing the cover of the electronic control
P.C. board.
(5) Remove the cover of the electronic control P.C. board.
(6) Remove the screw fixing the heat sink.
(7) Remove the hooks fixing the electronic control P.C. board.
(8) Disconnect all the connectors and the terminal on the
electronic control P.C. board.
(9) Remove the electronic control P.C. board.
Photo 4
Photo 5
Screw of the relay panel
Compressor
connector
Screws of the cover
Screws of fan motor
LEV, R.V. coil
and thermistor
connectors
Fan motor
connector
TAB4
Fig. 1
Push up the connector by holding
the part shown by the arrows.
Compressor
connector
Relay panel
68
Propeller
Photo 6
Screw of heat sink
Propeller nut
Terminal of
reactor
X64
hooks
Page 69
OPERATING PROCEDURE
PHOTOS
4. Removing the propeller and fan motor
(1) Remove the top panel, service panel and front panel.
(2) Remove the fan motor connector (CN911) from the noise
filter P.C. board.
Remove the inverter assembly and then lead wires from
cable clamp.
(3) Remove the propeller nut.
(4) Remove the propeller.
(5) Remove the screws of fan motor.
(6) Remove the fan motor
5. Removing the thermistor
Discharge temperature thermistor, defrost,
evaporator temperature, high-pressure protect,
gas pipe temperature Aand gas pipe temperature B
(1) Remove the top panel, service panel, front panel.
(2) Remove indoor/outdoor connecting wire and power supply
cable.
(3) Remove thermistor connector (CN661, CN662) from the
electronic control P.C. board.
(4) Remove the inverter assembly.
(5) Remove the thermistor in the upper part of compressor.
(6) Remove the back panel.
(7) Remove the thermistors for defrost, evaporator temperature,
gas pipe temperature Aand gas pipe temperature B.
Do not wipe off silicon oil.
Otherwise the temperature of the electronic control P.C. board
may rise unusually.
Photo 7
Cable clamp
Photo 8
High-pressure protect thermistor
Defrost
thermistor
Gas pipe
temperature
thermistor
A, B
Photo 9
Discharge
Terminal
cover
Evaporator temperature thermistor
temperature
thermistor
Defrost thermistor
Sound proof
felt
69
Page 70
OPERATING PROCEDURE
6. Removing the compressor/4-way valve
(1) Collect refrigerant from refrigerant circuit.
Caution: If collecting has not been done enough, refrigerating
machine oil may spout out or harmful substance may be
generated during welding work.
(2) Remove indoor/outdoor connecting wire and power supply
cable.
(3) Remove the top panel, service panel, front panel and back
panel.
(4) Remove the inverter assembly.
(5) In case of removing 4-way valve, detach welded parts first.
(6) Remove the terminal cover then pull out the lead wire from
the terminal of compressor.
Remove the soundproof felt.
(7) Detach welded parts of compressor suction and discharge
pipes.
(8) Remove the compressor nuts and remove the compressor.
PHOTOS
Photo 10
Welded parts of compressor
suction and discharge pipes
4-way valve
welded parts
70
Page 71
13-2. MXZ-A26WV - MXZ-A32WV -
OUTDOOR UNIT
E1E1
OPERATING PROCEDURE
1. Removing the compressor
(1)Remove the screws of the top panel, and remove it.
(2)Remove the screws of the service panel, and remove it.
Recover refrigerant gas.
(3)Remove the screws of the front panel, and remove it.
(4)Disconnect the compressor lead wire from terminal of
compressor. (U, V, W)
(5)Disconnect the outdoor electronic control P.C. board
connectors.
CN661, CN662, CN681, CN791, CN792, CN793,
CN794 (MXZ-A32WV), CN795, CN931, CN932
Disconnect the noise filter P.C. board connector.
CN912
(6)Remove the screws of the electrical parts, and remove the
electrical parts.
(7)Remove the propeller.
(8)Remove the screws of the separator, and remove the
separator.
(9)Remove the sound proof felt.
(10)
Detach the welded parts of the compressor suction and dis-
charge pipes. (Photo 3)
(11)
Remove the compressor nuts and remove the compressor.
Photo 1
Screws of the front panel
Screws of the top panel
Photo 2
PHOTOS
Screws of
service
panel
Screws
of the
electrical
parts
Photo 3
LEV coil
Expansion
valve
Suction
pipe
welded
part
Discharge
pipe
welded
part
Electronic
control
P.C.
board
Terminal
71
Page 72
OPERATING PROCEDURE
PHOTOS
2. Removing the fan motor
(1)Remove the top panel, the service panel, and the front panel.
(Photo 1)
(2)Disconnect the connector CN911 on the outdoor electronic
control P.C. board.
(3)Remove the propeller.
(4)Remove the fan motor.
3. Removing the 4-way valve
(1)Remove the top panel. (Photo 1)
(2)Remove the service panel, rear panel, and pipe cover.
Recover refrigerant gas.
(3)Remove the electrical parts. (Photo 2)
(4)Detach the welded parts of 4-way valve and pipe.
(Photo 5)
Photo 4
Propeller
Propeller nut
Photo 5
Screws of the outdoor fan motor
Sound
proof
felt
Separator
Compressor nuts
4 way valve
R.V. coil
4. Removing the expansion valve
(1)Remove the top panel. (Photo 1)
(2)Remove the service panel. (Photo 1)
(Gas recovery is not required if the unit is pumped down.)
(3)Remove the LEV coil.
(4)Detach the welded parts of expansion valves and pipes.
Photo 6
LEV coils
Welded parts
Expansion
valves
72
Page 73
OPERATING PROCEDURE PHOTOS
5. Removing the reactor
(1)Remove the top panel. (Photo 1)
(2)Disconnect the reactor lead wire.
(3)Remove the screws of the reactor, and remove the reactor.
Photo 7
Screws of the reactor
73
Page 74
14
Symbol
in Wiring
Diagram
Q'ty/unit
MXZA14WV-
Remarks
Parts No. Parts Name
E1
MXZ-
A14WV-
E2
MXZA18WV-
E1
MXZ-
A18WV-
E2
E02 819 521
E02 737 232
E02 819 009
E02 214 501
E02 735 301
E02 065 506
E02 735 900
E02 737 290
E02 735 661
E02 735 662
E02 736 493
E02 735 493
E02 735 640
E02 735 937
E02 735 961
E02 891 961
E02 735 490
E02 A08 490
E02 737 245
E02 737 233
E02 817 009
E02 636 515
E02 735 630
E02 819 297
E02 735 933
E02 069 936
E02 735 936
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
FAN GUARD
CABINET
HANDLE
PROPELLER
OUTDOOR FAN MOTOR
COMPRESSOR RUBBER SET
COMPRESSOR
BASE
STOP VALVE (GAS)
STOP VALVE (LIQUID)
LEV COIL
LEV COIL
EXPANSION VALVE
CAPILLARY TUBE
4-WAY VALVE
4-WAY VALVE
R.V. COIL
R.V. COIL
SERVICE PANEL
BACK PANEL (OUT)
HANDLE
MOTOR SUPPORT
OUTDOOR HEAT EXCHANGER
TOP PANEL
MUFFLER
CAPILLARY TUBE
CAPILLARY TUBE
RA6V493RUBBERS/SET
SNV-092FJYH
[1.8O[0.6O750
[3.0O[2.0O400
[3.0O[1.8O600
No.
1
1
1
1
1
3
1
1
2
2
1
1
2
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
1
1
3
1
1
2
2
1
1
2
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
1
1
3
1
1
2
2
1
1
2
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
1
1
3
1
1
2
2
1
1
2
1
1
1
1
1
1
1
1
1
2
2
2
MF
MC
B
A
LEV A,B
21S4
21S4
PARTS LIST
MXZ-A14WV - MXZ-A18WV MXZ-A14WV - MXZ-A18WV -
E1E1
E2E2
14-1. OUTDOOR UNIT FUNCTIONAL PARTS AND STRUCTURAL PARTS
22
21
20 19
16
15
14
13
12
11
10
9
18
17
1
Part numbers that are circled are not shown in the illustration.
2
3
4
74
6 7 8
5
Page 75
MXZ-A14WV - MXZ-A18WV -
E02 817 704
E02 444 705
12
13
DRAIN SOCKET
DRAIN CAP
1
2
1
2
1
2
1
2
2PCS/SET
MXZ-A14WV - MXZ-A18WV -
E1E1
E2E2
14-2. OUTDOOR UNIT ELECTRICAL PARTS
14-3. ACCESSORY
9
1
2
3
4
14-2. OUTDOOR UNIT ELECTRICAL PARTS
Part numbers that are circled are not shown in the illustration.
7
8
5 6
12
13
Parts No. Parts Name
No.
E02 735 337
1
E02 A08 444
2
E02 735 374
3
E02 573 375
4
E02 735 241
5
E02 735 382
6
E02 735 306
7
E02 735 308
8
E02 887 450
9
E02 735 450
E02 735 385
10
E02 737 382
11
REACTOR
NOISE FILTER P.C. BOARD
TERMINAL BLOCK
TERMINAL BLOCK
FUSE HOLDER
FUSE
GAS PIPE TEMPERATURE THERMISTOR SET
THERMISTOR SET
ELECTRONIC CONTROL P.C. BOARD
ELECTRONIC CONTROL P.C. BOARD
FUSE&VARISTOR
FUSE
14-3. ACCESSORY
Symbol
in Wiring
Diagram
TB2
TB1
F61
RT6A,RT6B
RT61,RT62,RT63,RT68
F912,NR63
F801,F911
MXZ-
A14WV-
L
1
1
1
1
1
1
1
1
1
1
1
MXZ-
E1
A14WV-
Q'ty/unit
MXZ-
E2
A18WV-
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MXZ-
E1
A18WV-
Remarks
E2
1
1
1
1
1
1
20A 250VAC
1
DISCHARGE,DEFROST
1
EVAPORATOR,HIGH-PRESSURE PROTECT
Including heat sink and RT65
Including heat sink and RT65
1
1
3.15A 250V
1
1A 250V
75
Page 76
MXZ-A26WV MXZ-A32WV -
E1
E1
14-4. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS
24
25
23
22
21
18
19
20
2
14
15
17
16
1
2
5
6
8
10
9
7
12
11
13
3
76
4
Page 77
14-4. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS
Part numbers that are circled are not shown in the illustration.
1
2
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
1
1
Q'ty/unit
E1
MXZ-A32WV-
1
2
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
4
1
1
Parts No. Parts Name
No.
M21 TK0 232
1
M21 TK0 027
2
M21 TK5 010
3
M21 TK0 245
4
T92 500 801
5
T2W TK0 505
6
M21 TK5 646
7
T2W TK0 654
M21 TK5 646
8
T2W TK0 653
R01 E39 401
9
T2W TK0 652
R01 E39 401
10
T2W TK0 651
M21 TK0 290
11
M21 42E 644
12
T2W TK0 247
13
M21 TK5 667
14
M21 TK0 667
15
M21 TK0 248
16
T2W TK0 959
17
18
M21 20A 961
19
M21 NT1 646
20
T2W WW8 401
21
T2W TK0 651
22
M21 TK0 297
23
T2W E40 523
24
M21 TK0 630
25
M21 TK0 249
M21 SJ4 937
26
M21 TK0 936
27
28
T2W E59 936
29
T2W E70 936
FRONT PANEL
HANDLE ASSEMBLY
GRILLE
SERVICE PANEL
COMPRESSOR
COMPRESSOR RUBBER SET
EXPANSION VALVE
LEV COIL
EXPANSION VALVE
LEV COIL
EXPANSION VALVE
LEV COIL
EXPANSION VALVE
LEV COIL
BASE ASSEMBLY
UNION
PIPE COVER
BALL VALVE 3/8
BALL VALVE 5/8
REAR PANEL
POWER RECEIVER
4-WAY VALVE
HIGH PRESSURE SWITCH
EXPANSION VALVE
LEV COIL
TOP PANEL
REAR GUARD
HEAT EXCHANGER
SIDE PANEL
CAPILLARY TUBE
CAPILLARY TUBE SET
CAPILLARY TUBE
CAPILLARY TUBE
Symbol
in Wiring
Diagram
MC
LEV D
LEV C
LEV B
LEV A
HPS
LEV E
LEV E
MXZ-A26WV-
E1
Remarks
TNB220FMCH
3RUBBERS SET
D room
D room
C room
C room
B room
B room
A room
A room
1/2,3/8,1/4 SET
4.8MPa(48.9kg/cm2)
[4.0O[2.4O400
[4.0O[2.8O90
[2.5O[0.6O1000
[2.0O[0.6O750
77
Page 78
Symbol
in Wiring
Diagram
Q'ty/unit
MXZ-A26WV-
Remarks
Parts No. Parts Name
E1
MXZ-A32WV-
E1
M21 TK0 501
M21 TK0 301
T2W TK0 440
T2W TK1 451
T2W TK0 451
M21 TK0 337
T2W TK0 424
T2W E58 376
T2W TK0 375
T2W E88 307
T2W E70 307
T2W TK0 398
M21 TK0 308
T2W E08 381
T2W E66 382
T2W E89 313
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PROPELLER
OUTDOOR FAN MOTOR
POWER BOARD
ELECTRONIC CONTROL P.C. BOARD
ELECTRONIC CONTROL P.C. BOARD
REACTOR
NOISE FILTER P.C. BOARD
TERMINAL BLOCK
TERMINAL BLOCK
GAS PIPE TEMPERATURE THERMISTOR
GAS PIPE TEMPERATURE THERMISTOR
R.V. COIL
THERMISTOR SET
FUSE
FUSE
FUSE&VARISTOR SET
No.
MF
L
TB2~5
TB1
RT6A,B,C
RT6A,B,C,D
21S4
RT61,62,63,68
F801
F911
F912,NR63
1
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
1
1
1
PM8H60-
Indoor unit connecting
Including heat sink and RT65
Power supply
1A 250V
3.15A 250V
3.15A 250V
DISCHARGE, DEFROST
EVAPORATION, OUTDOOR HEAT EXCHANGER
220+ 400V
MXZ-A26WV MXZ-A32WV -
E1
E1
14-5. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS
11
10
9
8
1
2
3
Part numbers that are circled are not shown in the illustration.
4
78
5
6
7
Page 79
B
A
C
Model name
Model code
Applied unit
MAC-855SG 51H-855
MXZ-A26WV
MXZ-A32WV
610.4
534
534
386
416
51.8
150
109.4
29.2760.829.2
6.46.4
832
386
Punched hole
Punched hole
5 - [6
5 - [6
MXZ-A26WVMXZ-A32WV-
E1
E1
14-6. ACCESSORY
1
Parts No. Parts Name
No.
T2W E59 7041DRAIN SOCKET ASSEMBLY
15
OPTIONAL PARTS
15-1. Different-diameter pipe
MXZ-A14WV
MXZ-A18WV
For differentdiameter
pipes
MXZ-A26WV
MXZ-A32WV
For differentdiameter
pipes
Model name
MAC-A454JP
Model name
MAC-A454JP
MAC-A455JP
MAC-A456JP
Symbol
in Wiring
Diagram
Connected pipes
diameter (mm)
{9.52 — {12.7
(3/8) (1/2)
Connected pipes
diameter (mm)
{9.52 — {12.7
(3/8) (1/2)
{12.7 — {9.52
(1/2) (3/8)
{12.7 — {15.88
(1/2) (5/8)
MXZ-A26WV-
Length
A
{9.52
(3/8)
Length
A
{9.52
(3/8)
{12.7
(1/2)
{12.7
(1/2)
Q'ty/unit
E1
MXZ-A32WV-
1 1
Length
B
{12.7
(1/2)
Length
B
{12.7
(1/2)
{9.52
(3/8)
{15.88
(5/8)
Length
C
69
Length
C
69
65
66.5
E1
Remarks
DRAIN SOCKET O1
DRAIN CAP O2
Unit : mm (inch)
15-2. Outlet guide
Changes air discharge direction.
79
MAC-855SG
Page 80
HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
CC
Copyright 2004 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD
Distributed in May 2006. No.OB319 REVISED EDITION-C 8
Distributed in Aug. 2005. No.OB319 REVISED EDITION-B 8
Distributed in Aug. 2004. No.OB319 REVISED EDITION-A 8
Distributed in Dec. 2003. No.OB319 7
Made in Japan
New publication, effective May 2006
Specifications subject to change without notice.
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