Download Mitsubishi MXZ-A26 Service manual
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OB319--1.qxp 03.12.3 0:54 PM Page 1 SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS HFC No. OB319 utilized SERVICE MANUAL R410A Inverter-controlled multi system Models MXZ-A18WV MXZ-A26WV MXZ-A32WV - E1 E1 E1 CONTENTS Indication of model name MXZ-A18WV - E1 1. TECHNICAL CHANGES ····································3 2. PART NAMES AND FUNCTIONS······················7 3. INDOOR/OUTDOOR CORRESPONDENCE TABLE ···························7 4. INDOOR UNITS COMBINATION ·····················10 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. MICROPROCESSOR CONTROL·····················47 12. TROUBLESHOOTING······································52 13. DISASSEMBLY INSTRUCTIONS·····················71 14. PARTS LIST······················································78 15. OPTIONAL PARTS···········································83 NOTE: •The description for MXZ-A18WV- E1 has been transferred here from service manual OB307 REVISED EDITION-A. •SPECIFICATION, PERFORMANCE CURVES and PARTS LIST of MXZ-A18WV- E1 have been partially modified. •This service manual describes technical data of outdoor units. As for indoor units, refer to the service manual OB307 REVISED EDITION-A, OB321, OB327 or B329. OB319--1.qxp 03.12.3 0:54 PM Page 2 OB319--1.qxp 03.12.3 0:54 PM 1 Page 3 TECHNICAL CHANGES MXZ-18TV - E2 ➔ MXZ-A18WV - E1 1. Outdoor model has changed. 2. Refrigerant has changed. (R22➔R410A) MXZ-24UV - E2 ➔MXZ-A26WV - E1 1. 2. 3. 4. 5. 6. 7. Cooling capacity has become larger. (7.1kW➔7.2kW) Combinations of connectable indoor units have increased. Capacity class of connectable indoor units has become larger. Compressor has changed. (THV247FBA➔TNB220FMCH) Outdoor fan motor has changed. (RA6V60-BA➔PM8H60-VA) Refrigerant has changed. (R22➔R410A) Refrigerant system diagram has changed. • High pressure switch has decreased. (2➔1) • Accumulator has removed. • Receiver has added. MXZ-32SV - E2 ➔MXZ-A32WV - E1 1. 2. 3. 4. 5. 6. Combinations of connectable indoor units have increased. Capacity class of connectable indoor units has become larger. Compressor has changed. (THV247FBA➔TNB220FMCH) Outdoor fan motor has changed. (RA6V60-BA➔PM8H60-VA) Refrigerant has changed. (R22➔R410A) Refrigerant system diagram has changed. • High pressure switch has decreased. (2➔1) • Accumulator has removed. • Receiver has added. 3 OB319--1.qxp 03.12.3 0:54 PM Page 4 INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT • This room air conditioner adopts an 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. New refrigerant R410A R22 Composition (Ratio) HFC-32: HFC-125 (50%:50%) R22 (100%) Refrigerant handling Pseudo-azeotropic refrigerant Single refrigerant Not included Included Refrigerant Chlorine A1/A1 A1 72.6 86.5 Boiling point (:) -51.4 -40.8 Steam pressure [25:](Mpa) 1.557 0.94 64 44.4 Non combustible Non combustible 0 0.055 Refrigerant Safety group (ASHRAE) Molecular weight Saturated steam density [25:](Kg/K) Combustibility ODP w1 GWP w2 Refrigerant charge method 1730 1700 From liquid phase in cylinder Gas phase Possible Possible Kind Incompatible oil Compatible oil Color Non Light yellow Non Non oil Refrigerating Additional charge on leakage Smell w1 :Ozone Destruction Parameter : based on CFC-11 w2 :Global Warmth Parameter : based on CO2 New Specification Compressor Previous refrigerant Current Specification The incompatible refrigerating oil easily separates from Since refrigerant and refrigerating oil are compatible each, refrigerant and is in the upper layer inside the suction muffler. refrigerating oil backs to the compressor through the lower Raising position of the oil back hole enables to back the position oil back hole. refrigerating oil of the upper layer to flow back to the compressor. Suction muffler Suction muffler Compressor Oil back hole Compressor Refrigerating oil Oil back hole Refrigerant Refrigerating oil /Refrigerant NOTE : The unit of pressure has been changed to MPa on the international system of units(SI unit system). f [Gauge]) The conversion factor is: 1(MPa [Gauge]) =10.2(kgf/f 4 OB319--1.qxp 03.12.3 0:54 PM Page 5 Conversion chart of refrigerant temperature and pressure (MPa [Gauge]) 4.0 Saturated liquid pressure 3.5 R410A 3.0 R22 2.5 2.0 NOTE : The unit of pressure has been changed to MPa on the international system of units(SI unit system). 1.5 1.0 f [Gauge]) The conversion factor is: 1(MPa [Gauge]) =10.2(kgf/f 0.5 0.0 -0.5 -30 -20 -10 0 10 20 30 40 50 60 (:) 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. R410A tools Description Can R22 tools be used? 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. Gauge manifold No Charge hose No Gas leak detector No Hose material and cap size have been changed to improve the pressure resistance. Dedicated for HFC refrigerant. Yes 6.35 mm and 9.52 mm No 12.7 mm and 15.88 mm Flare tool Yes Clamp bar hole has been enlarged to reinforce the spring strength in the tool. Flare gauge Vacuum pump adapter Electronic scale for refrigerant charging New 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 Torque wrench New New No : Not Substitutable for R410A Yes : Substitutable for R410A 2.Refrigerant piping 1 Specifications Use the refrigerant pipes that meet the following specifications. Pipe For liquid For gas Outside diameter mm Wall thickness Insulation material 6.35/9.52 0.8 mm/0.8 mm 9.52 0.8 mm Heat resisting foam plastic 12.7 0.8 mm Specific gravity 0.045 Thickness 8 mm 15.88 1.0 mm • 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. 5 OB319--1.qxp 03.12.3 0:54 PM Page 6 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”. Dimension of flare nut Pipe diameter mm R410A R22 6.35 17 17 9.52 22 22 12.7 26 24 15.88 29 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 refrigerating 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 Liquid pipe Outdoor unit Gas pipe Refrigerant gas cylinder operating valve 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 6 OB319--1.qxp 03.12.3 0:54 PM 2 Page 7 PART NAMES AND FUNCTIONS OUTDOOR UNIT MXZ-A18WV- E1 MXZ-A26WV- E1 MXZ-A32WV- E1 Air inlet (Back and side) Air inlet (Back and side) Air outlet Air outlet Drain outlet Drain outlet ACCESSORIES MXZ-A18WV- E1 MXZ-A26WV- E1 MXZ-A32WV- E1 1 Drain socket 1 2 Drain cap 2 3 INDOOR/ OUTDOOR CORRESPONDENCE TABLE MXZ-A18WV - E1 OUTDOOR UNIT Combination of the connectable indoor units MXZ-A18WV- E1 07+07 07+09 07+12 09+09 09+12 12+12 ❈There is no combination other than this table. 7 OB319--1.qxp 03.12.3 0:54 PM Page 8 MXZ-A26WV - E1 OUTDOOR UNIT Combination of the connectable indoor units MXZ-A26WV- E1 ❈There is no combination other than this table. 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 8 OB319--1.qxp 03.12.3 0:54 PM Page 9 OUTDOOR UNIT OUTDOOR UNIT MXZ-A32WV- E1 MXZ-A32WV- E1 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 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 Combination of the connectable indoor units Combination of the connectable indoor units MXZ-A32WV - E1 ❈There is no combination other than this table. 9 OB319--1.qxp 03.12.3 0:55 PM Page 10 INDOOR UNITS COMBINATION 4 MXZ-A18WV - E1 Cooling capacity (kW) Indoor units combination Unit A Unit B 07 2.3 – 09 2.5 – 12 3.4 – 07+07 2.3 2.3 07+09 2.3 2.5 07+12 2.02 2.98 09+09 2.5 2.5 09+12 2.2 3.1 12+12 2.65 2.65 Total 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) NOTE: Electrical data is for outdoor unit only. Current Power Outdoor unit (A) factor power consumption (%) (kW) 230V 0.750 3.62 90 (0.225-1.000) 0.810 3.91 90 (0.225-1.070) 1.180 5.70 90 (0.220-1.450) 1.480 7.15 90 (0.370-2.060) 1.600 7.73 90 (0.370-2.070) 1.610 7.78 90 (0.365-2.100) 1.780 8.60 90 (0.370-2.105) 1.830 (0.365-2.110) 1.860 (0.370-2.130) 8.84 90 8.99 90 NOTE: Electrical data is for outdoor unit only. Heating capacity (kW) Indoor units combination Unit A Unit B 07 3.3 – 09 3.6 – 12 4.0 – 07+07 3.05 3.05 07+09 2.97 3.23 07+12 2.62 3.88 09+09 3.25 3.25 09+12 2.78 3.77 12+12 3.30 3.30 Total Outdoor unit power consumption (kW) Current (A) 230V Power factor (%) 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) 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) 4.73 90 5.14 90 6.76 90 9.32 90 9.37 90 9.03 90 9.28 90 6.55 (1.56-7.1) 6.6 (1.58-7.2) 1.845 (0.295-1.950) 1.770 (0.290-1.850) 8.91 90 8.55 90 10 OB319--1.qxp 03.12.3 0:55 PM Page 11 MXZ-A26WV - E1 Cooling capacity (kW) Indoor units combination Unit A Unit B Unit C 07 2.3 – – 09 2.5 – – 12 3.4 – – 18 5.0 – – 24 6.0 – – 26 7.1 – – 07+07 2.3 2.3 – 07+09 2.1 2.7 – 07+12 2.1 3.6 – 07+18 2.01 5.18 – 07+24 1.62 5.57 – 07+26 1.52 5.67 – 09+09 2.5 2.5 – 09+12 2.52 3.37 – 09+18 2.4 4.8 – 09+24 1.96 5.23 – 09+26 1.85 5.34 – 12+12 3.4 3.4 – 12+18 2.88 4.32 – 12+24 2.4 4.8 – 12+26 2.27 4.92 – 18+18 3.6 3.6 – 18+24 3.08 4.11 – 18+26 2.94 4.25 – 07+07+07 2.3 2.3 2.3 07+07+09 2.16 2.16 2.77 07+07+12 1.93 1.93 3.32 07+07+18 1.58 1.58 4.05 07+07+24 1.32 1.32 4.55 07+07+26 1.26 1.26 4.68 07+09+09 2.01 2.59 2.59 07+09+12 1.8 2.31 3.09 07+09+18 1.48 1.9 3.81 07+09+24 1.26 1.62 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 Current power consumption factor (A) (kW) (%) 0.710 3.12 99 (0.400-0.920) 0.760 3.34 99 (0.400-1.010) 1.000 4.39 99 (0.400-1.290) 1.440 6.32 99 (0.420-1.630) 1.930 8.48 99 (0.400-2.130) 2.580 11.33 99 (0.410-2.710) 1.180 5.18 99 (0.600-1.600) 1.300 5.71 99 (0.600-1.770) 1.710 7.51 99 (0.600-2.200) 2.400 10.54 99 (0.560-2.710) 2.360 10.36 99 (0.560-3.050) 2.360 10.36 99 (0.560-3.200) 1.360 5.97 99 (0.580-1.950) 1.860 8.17 99 (0.580-2.670) 2.400 10.54 99 (0.560-3.200) 2.360 10.36 99 (0.560-3.170) 2.360 10.36 99 (0.560-3.170) 2.330 10.23 99 (0.580-3.260) 2.390 10.50 99 (0.560-3.210) 2.350 10.32 99 (0.560-3.180) 2.350 10.32 99 (0.560-3.180) 2.340 10.28 99 (0.590-3.160) 2.300 10.10 99 (0.570-3.110) 2.300 10.10 99 (0.570-3.110) 1.940 8.52 99 (0.690-2.410) 2.030 8.92 99 (0.690-2.510) 2.310 10.14 99 (0.690-2.620) 2.320 10.19 99 (0.700-2.570) 2.370 10.41 99 (0.680-2.530) 2.390 10.50 99 (0.680-2.530) 2.130 9.35 99 (0.690-2.620) 2.350 (0.690-2.620) 2.370 (0.700-2.570) 2.390 (0.680-2.530) 10.32 99 10.41 99 10.50 99 OB319--1.qxp 03.12.3 0:55 PM Page 12 Cooling capacity (kW) Indoor units combination Unit A Unit B Unit C 07+09+26 1.2 1.54 4.45 07+12+12 1.62 2.79 2.79 07+12+18 1.36 2.33 3.5 07+12+24 1.17 2.0 4.01 07+12+26 1.12 1.92 4.16 07+18+18 1.17 3.01 3.01 07+18+24 1.02 2.64 3.52 07+18+26 0.98 2.54 3.67 09+09+09 2.36 2.36 2.36 09+09+12 2.16 2.16 2.89 09+09+18 1.8 1.8 3.6 09+09+24 1.54 1.54 4.11 09+09+26 1.47 1.47 4.25 09+12+12 1.97 2.61 2.61 09+12+18 1.66 2.21 3.32 09+12+24 1.44 1.92 3.84 09+12+26 1.37 1.83 3.98 09+18+18 1.44 2.88 2.88 09+18+24 1.27 2.54 3.38 12+12+12 2.4 2.4 2.4 12+12+18 2.05 2.05 3.08 12+12+24 1.8 1.8 3.6 12+12+26 1.72 1.72 3.74 12+18+18 1.8 2.7 2.7 12+18+24 1.6 2.4 3.2 Total 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) 12 NOTE: Electrical data is for outdoor unit only. Outdoor unit Power Current power consumption factor (A) (kW) (%) 2.390 10.50 99 (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) 10.32 99 10.19 99 10.32 99 10.32 99 10.23 99 10.10 99 10.10 99 8.92 99 10.32 99 10.41 99 10.50 99 10.50 99 10.32 99 10.45 99 10.32 99 10.32 99 10.23 99 10.10 99 9.18 99 10.01 99 9.93 99 9.93 99 9.84 99 9.75 99 OB319--1.qxp 03.12.3 0:55 PM Page 13 Heating capacity (kW) Indoor units combination Unit A Unit B Unit C 07 3.3 – – 09 3.6 – – 12 4.0 – – 18 7.2 – – 24 7.9 – – 26 8.6 – – 07+07 3.3 3.3 – 07+09 3.02 3.88 – 07+12 2.69 4.61 – 07+18 2.49 6.41 – 07+24 2.03 6.97 – 07+26 1.91 7.09 – 09+09 3.6 3.6 – 09+12 3.26 4.34 – 09+18 3.0 6.0 – 09+24 2.45 6.55 – 09+26 2.31 6.69 – 12+12 4.0 4.0 – 12+18 3.6 5.4 – 12+24 3.0 6.0 – 12+26 2.84 6.16 – 18+18 4.5 4.5 – 18+24 3.86 5.14 – 18+26 3.68 5.32 – 07+07+07 2.9 2.9 2.9 07+07+09 2.67 2.67 3.44 07+07+12 2.42 2.42 4.15 07+07+18 1.96 1.96 5.06 07+07+24 1.65 1.65 5.68 07+07+26 1.57 1.57 5.85 07+09+09 2.52 3.24 3.24 07+09+12 2.25 2.89 3.85 07+09+18 1.85 2.38 4.76 07+09+24 1.57 2.02 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 Current power consumption factor (A) (kW) (%) 1.050 4.61 99 (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) 4.87 99 5.31 99 9.97 99 11.86 99 14.14 99 8.87 99 9.31 99 9.35 99 10.85 99 11.07 99 11.07 99 9.53 99 9.71 99 11.07 99 10.98 99 10.98 99 10.41 99 10.98 99 10.89 99 10.89 99 9.71 99 9.71 99 9.71 99 9.44 99 9.53 99 9.66 99 8.96 99 8.96 99 8.96 99 9.66 99 9.57 99 8.87 99 8.87 99 OB319--1.qxp 03.12.3 0:55 PM Page 14 Heating capacity (kW) Indoor units combination Unit A Unit B Unit C 07+09+26 1.5 1.92 5.57 07+12+12 2.03 3.48 3.48 07+12+18 1.7 2.91 4.37 07+12+24 1.46 2.51 5.02 07+12+26 1.4 2.4 5.2 07+18+18 1.46 3.76 3.76 07+18+24 1.28 3.3 4.4 07+18+26 1.23 3.17 4.58 09+09+09 3.0 3.0 3.0 09+09+12 2.7 2.7 3.6 09+09+18 2.25 2.25 4.5 09+09+24 1.92 1.92 5.14 09+09+26 1.84 1.84 5.31 09+12+12 2.45 3.27 3.27 09+12+18 2.07 2.76 4.15 09+12+24 1.8 2.4 4.8 09+12+26 1.72 2.29 4.97 09+18+18 1.8 3.6 3.6 09+18+24 1.58 3.17 4.23 12+12+12 3.0 3.0 3.0 12+12+18 2.57 2.57 3.85 12+12+24 2.25 2.25 4.5 12+12+26 2.16 2.16 4.68 12+18+18 2.25 3.37 3.37 12+18+24 2.0 3.0 4.0 Total 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) 14 NOTE: Electrical data is for outdoor unit only. Outdoor unit Power Current power consumption factor (A) (kW) (%) 2.020 8.87 99 (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) 9.57 99 8.52 99 8.52 99 8.52 99 8.12 99 8.12 99 8.12 99 9.53 99 9.49 99 8.78 99 8.78 99 8.78 99 9.49 99 8.43 99 8.43 99 8.43 99 8.04 99 8.04 99 9.44 99 8.30 99 8.30 99 8.30 99 7.91 99 7.91 99 OB319--1.qxp 03.12.3 0:55 PM Page 15 MXZ-A32WV - E1 Cooling capacity (kW) Indoor units combination Unit A Unit B Unit C Unit D 07 2.3 – – – 09 2.5 – – – 12 3.4 – – – 18 5.0 – – – 24 6.0 – – – 26 7.1 – – – 07+07 2.3 2.3 – – 07+09 2.1 2.7 – – 07+12 2.1 3.6 – – 07+18 2.04 5.25 – – 07+24 1.75 6.0 – – 07+26 1.66 6.19 – – 09+09 2.5 2.5 – – 09+12 2.52 3.37 – – 09+18 2.5 5.0 – – 09+24 2.11 5.64 – – 09+26 2.01 5.84 – – 12+12 3.4 3.4 – – 12+18 3.1 4.65 – – 12+24 2.61 5.24 – – 12+26 2.51 5.44 – – 18+18 3.95 3.95 – – 18+24 3.42 4.57 – – 18+26 3.27 4.72 – – 24+24 4.0 4.0 – – 24+26 3.84 4.16 – – 07+07+07 2.3 2.3 2.3 – 07+07+09 2.16 2.16 2.77 – 07+07+12 2.07 2.07 3.55 – 07+07+18 1.72 1.72 4.41 – 07+07+24 1.46 1.46 5.03 – 07+07+26 1.4 1.4 5.2 – 07+09+09 2.04 2.62 2.62 – 07+09+12 1.93 2.49 3.33 – 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) 7.3 (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) 15 NOTE: Electrical data is for outdoor unit only. Outdoor unit Power Current power consumption factor (A) (kW) (%) 0.710 3.12 99 (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) 3.34 99 4.39 99 6.32 99 8.48 99 11.33 99 5.18 99 5.71 99 7.51 99 10.89 99 12.08 99 12.34 99 5.97 99 8.17 99 11.33 99 12.08 99 12.34 99 10.23 99 12.12 99 11.99 99 12.21 99 12.21 99 12.30 99 12.30 99 11.81 99 11.81 99 8.52 99 8.92 99 10.14 99 10.19 99 10.41 99 10.50 99 9.35 99 10.32 99 OB319--1.qxp 03.12.3 0:55 PM Page 16 Cooling capacity (kW) Indoor units combination Unit A Unit B Unit C Unit D 07+09+18 1.62 2.09 4.18 – 07+09+24 1.4 1.8 4.8 – 07+09+26 1.33 1.71 4.95 – 07+12+12 1.77 3.04 3.04 – 07+12+18 1.49 2.56 3.84 – 07+12+24 1.3 2.23 4.46 – 07+12+26 1.24 2.13 4.62 – 07+18+18 1.3 3.34 3.34 – 07+18+24 1.14 2.93 3.91 – 07+18+26 1.09 2.82 4.07 – 09+09+09 2.36 2.36 2.36 – 09+09+12 2.32 2.32 3.11 – 09+09+18 1.97 1.97 3.95 – 09+09+24 1.71 1.71 4.57 – 09+09+26 1.63 1.63 4.72 – 09+12+12 2.15 2.85 2.85 – 09+12+18 1.84 2.46 3.69 – 09+12+24 1.6 2.13 4.26 – 09+12+26 1.53 2.04 4.42 – 09+18+18 1.6 3.2 3.2 – 09+18+24 1.41 2.82 3.76 – 12+12+12 2.65 2.65 2.65 – 12+12+18 2.28 2.28 3.42 – 12+12+24 2.0 2.0 4.0 – 12+12+26 1.92 1.92 4.16 – 12+18+18 2.0 3.0 3.0 – 12+18+24 1.77 2.66 3.55 – 07+07+07+07 1.95 1.95 1.95 1.95 07+07+07+09 1.83 1.83 1.83 2.36 07+07+07+12 1.68 1.68 1.68 2.91 07+07+07+18 1.43 1.43 1.43 3.69 07+07+07+24 1.24 1.24 1.24 4.26 07+07+07+26 1.19 1.19 1.19 4.42 07+07+09+09 1.72 1.72 2.2 2.2 16 Total 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) NOTE: Electrical data is for outdoor unit only. Outdoor unit Power Current power consumption factor (A) (kW) (%) 2.370 10.41 99 (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) 10.50 99 10.50 99 10.32 99 10.19 99 10.32 99 10.32 99 10.23 99 10.10 99 10.10 99 8.92 99 10.32 99 10.41 99 10.50 99 10.50 99 10.32 99 10.45 99 10.32 99 10.32 99 10.23 99 10.10 99 10.01 99 10.01 99 9.93 99 9.93 99 9.84 99 9.75 99 9.57 99 9.62 99 9.71 99 9.44 99 9.35 99 9.35 99 9.62 99 OB319--1.qxp 03.12.3 0:55 PM Page 17 Cooling capacity (kW) Indoor units combination Unit A Unit B Unit C Unit D 07+07+09+12 1.59 1.59 2.04 2.72 07+07+09+18 1.36 1.36 1.75 3.51 07+07+09+24 1.19 1.19 1.53 4.08 07+07+09+26 1.14 1.14 1.46 4.24 07+07+12+12 1.47 1.47 2.52 2.52 07+07+12+18 1.27 1.27 2.18 3.27 07+07+12+24 1.12 1.12 1.92 3.84 07+07+18+18 1.12 1.12 2.88 2.88 07+09+09+09 1.62 2.09 2.09 2.09 07+09+09+12 1.5 1.93 1.93 2.59 07+09+09+18 1.3 1.67 1.67 3.34 07+09+09+24 1.14 1.46 1.46 3.91 07+09+12+12 1.4 1.8 2.4 2.4 07+09+12+18 1.21 1.56 2.08 3.13 07+09+12+24 1.07 1.38 1.84 3.69 07+12+12+12 1.3 2.23 2.23 2.23 07+12+12+18 1.14 1.95 1.95 2.93 09+09+09+09 1.97 1.97 1.97 1.97 09+09+09+12 1.84 1.84 1.84 2.46 09+09+09+18 1.6 1.6 1.6 3.2 09+09+09+24 1.41 1.41 1.41 3.76 09+09+12+12 1.56 1.75 2.34 2.34 09+09+12+18 1.5 1.5 2.0 3.0 09+12+12+12 1.6 2.13 2.13 2.13 12+12+12+12 2.0 2.0 2.0 2.0 17 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 Current power consumption factor (A) (kW) (%) 2.210 99 9.71 (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) 9.44 99 9.35 99 9.35 99 9.71 99 9.31 99 9.22 99 9.09 99 9.40 99 9.71 99 9.44 99 9.35 99 9.71 99 9.31 99 9.22 99 9.66 99 9.13 99 9.40 99 9.75 99 9.44 99 9.35 99 9.71 99 9.31 99 9.66 99 9.62 99 OB319--1.qxp 03.12.3 0:55 PM Page 18 Heating capacity (kW) Indoor units combination Unit A Unit B Unit C Unit D 07 3.3 – – – 09 3.6 – – – 12 4.0 – – – 18 7.2 – – – 24 7.9 – – – 26 8.6 – – – 07+07 3.3 3.3 – – 07+09 3.02 3.88 – – 07+12 2.69 4.61 – – 07+18 2.49 6.41 – – 07+24 2.12 7.28 – – 07+26 1.99 7.41 – – 09+09 3.6 3.6 – – 09+12 3.26 4.34 – – 09+18 3.0 6.0 – – 09+24 2.56 6.84 – – 09+26 2.42 6.98 – – 12+12 4.0 4.0 – – 12+18 3.76 5.64 – – 12+24 3.13 6.27 – – 12+26 2.97 6.43 – – 18+18 4.7 4.7 – – 18+24 4.03 5.37 – – 18+26 3.85 5.55 – – 24+24 4.7 4.7 – – 24+26 4.51 4.89 – – 07+07+07 2.9 2.9 2.9 – 07+07+09 2.67 2.67 3.44 – 07+07+12 2.53 2.53 4.33 – 07+07+18 2.05 2.05 5.28 – 07+07+24 1.73 1.73 5.93 – 07+07+26 1.64 1.64 6.11 – 07+09+09 2.49 3.2 3.2 – 07+09+12 2.35 3.02 4.02 – 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) 9.4 (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) 18 NOTE: Electrical data is for outdoor unit only. Outdoor unit Power Current power consumption factor (A) (kW) (%) 1.050 4.61 99 (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) 4.87 99 5.31 99 9.97 99 11.86 99 14.14 99 8.87 99 9.31 99 9.35 99 10.85 99 11.90 99 11.90 99 9.53 99 9.71 99 11.07 99 11.90 99 11.90 99 10.41 99 11.24 99 11.24 99 11.24 99 10.41 99 10.41 99 10.41 99 10.41 99 10.41 99 9.44 99 9.53 99 10.14 99 9.31 99 9.31 99 9.31 99 9.53 99 9.97 99 OB319--1.qxp 03.12.3 0:55 PM Page 19 Heating capacity (kW) Indoor units combination Unit A Unit B Unit C Unit D 07+09+18 1.93 2.48 4.97 – 07+09+24 1.64 2.11 5.64 – 07+09+26 1.56 2.01 5.81 – 07+12+12 2.12 3.63 3.63 – 07+12+18 1.77 3.04 4.57 – 07+12+24 1.53 2.62 5.24 – 07+12+26 1.46 2.5 5.43 – 07+18+18 1.53 3.93 3.93 – 07+18+24 1.34 3.45 4.6 – 07+18+26 1.29 3.31 4.79 – 09+09+09 3.0 3.0 3.0 – 09+09+12 2.82 2.82 3.76 – 09+09+18 2.35 2.35 4.7 – 09+09+24 2.01 2.01 5.37 – 09+09+26 1.92 1.92 5.55 – 09+12+12 2.56 3.41 3.41 – 09+12+18 2.16 2.89 4.33 – 09+12+24 1.88 2.5 5.01 – 09+12+26 1.8 2.4 5.2 – 09+18+18 1.88 3.76 3.76 – 09+18+24 1.65 3.31 4.42 – 12+12+12 3.13 3.13 3.13 – 12+12+18 2.68 2.68 4.02 – 12+12+24 2.35 2.35 4.7 – 12+12+26 2.25 2.25 4.88 – 12+18+18 2.35 3.52 3.52 – 12+18+24 2.08 3.13 4.17 – 07+07+07+07 2.35 2.35 2.35 2.35 07+07+07+09 2.19 2.19 2.19 2.82 07+07+07+12 1.99 1.99 1.99 3.41 07+07+07+18 1.68 1.68 1.68 4.33 07+07+07+24 1.46 1.46 1.46 5.01 07+07+07+26 1.4 1.4 1.4 5.2 07+07+09+09 2.05 2.05 2.64 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 Current power consumption factor (A) (kW) (%) 2.100 9.22 99 (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) 9.22 99 9.22 99 9.71 99 9.00 99 9.00 99 9.00 99 8.61 99 8.61 99 8.61 99 9.53 99 9.88 99 9.18 99 9.18 99 9.18 99 9.62 99 8.92 99 8.92 99 8.92 99 8.52 99 8.52 99 9.53 99 8.83 99 8.83 99 8.83 99 8.43 99 8.43 99 8.87 99 8.74 99 8.61 99 8.39 99 8.39 99 8.39 99 8.70 99 OB319--1.qxp 03.12.3 0:55 PM Page 20 Heating capacity (kW) Indoor units combination Unit A Unit B Unit C Unit D 07+07+09+12 1.88 1.88 2.41 3.22 07+07+09+18 1.6 1.6 2.06 4.12 07+07+09+24 1.4 1.4 1.8 4.8 07+07+09+26 1.34 1.34 1.72 4.98 07+07+12+12 1.73 1.73 2.96 2.96 07+07+12+18 1.49 1.49 2.56 3.84 07+07+12+24 1.31 1.31 2.25 4.51 07+07+18+18 1.31 1.31 3.38 3.38 07+09+09+09 1.93 2.48 2.48 2.48 07+09+09+12 1.77 2.28 2.28 3.04 07+09+09+18 1.53 1.96 1.96 3.93 07+09+09+24 1.34 1.72 1.72 4.6 07+09+12+12 1.64 2.11 2.82 2.82 07+09+12+18 1.43 1.83 2.45 3.67 07+09+12+24 1.26 1.62 2.16 4.33 07+12+12+12 1.53 2.62 2.62 2.62 07+12+12+18 1.34 2.3 2.3 3.45 09+09+09+09 2.35 2.35 2.35 2.35 09+09+09+12 2.16 2.16 2.16 2.89 09+09+09+18 1.88 1.88 1.88 3.76 09+09+09+24 1.65 1.65 1.65 4.42 09+09+12+12 1.83 2.06 2.75 2.75 09+09+12+18 1.76 1.76 2.35 3.52 09+12+12+12 1.88 2.5 2.5 2.5 12+12+12+12 2.35 2.35 2.35 2.35 20 Total 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) NOTE: Electrical data is for outdoor unit only. Outdoor unit Power Current power consumption factor (A) (kW) (%) 1.940 99 8.52 (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) 8.30 99 8.30 99 8.30 99 8.39 99 7.99 99 7.99 99 7.69 99 8.61 99 8.43 99 8.21 99 8.21 99 8.30 99 7.91 99 7.91 99 8.17 99 7.82 99 8.56 99 8.39 99 8.17 99 8.17 99 8.21 99 7.82 99 8.08 99 8.48 99 OB319--1.qxp 03.12.3 0:55 PM 5 Page 21 SPECIFICATION Outdoor model Indoor units number Indoor units total capacity (Connectable) ✽2 indoor units total capacity (Simultaneous operation) ✽2 m Piping total length m Connecting pipe length m Height difference (Indoor ~ Outdoor) m Height difference (Indoor ~ Indoor) Function kW Capacity [Rated (Min~Max.) Hz]✽4 R/h Dehumidification K /h Outdoor air flow A Power outlet A Running current ✽4 W Power input A(kW) Auxiliary heater W Crankcase heater % Power factor ✽4 A Starting current ✽4 A Compressor motor current A Fan motor current Coefficient of performance (C.O.P) Model W Output Winding " resistance (at 20:) Model Winding " resistance (at 20:) mm Dimensions WOHOD kg Weight w dB Sound level (High/Low ) ✽3 rpm Fan speed (High/Low w) ✽3 Fan speed regulator ✽3 Refrigerant filling kg capacity (R410A) cc Refrigerating oil (Model) k" Thermistor RT61 k" Thermistor RT62 k" Thermistor RT63 k" Thermistor RT6A,6B k" Thermistor RT65 k" Thermistor RT68 2,460 20 8.98 1,860 (370~2,130) 8.55 1,770 (290~1,850) — — 90.0 8.98 8.41 7.98 0.57 2.90 3.73 SNV-092FJYH (ROTARY) 1,450 U-V 2.56 V-W 2.56 W-U 2.56 RA6V49-AA WHT-BLK 139.9 BLK-YLW 34.2 BLK-RED 205.3 840(+69)o640o330 52 49/44 w 50/45 w Fan motor Compressor Electrical data Capacity System Outdoor unit power supply MXZ-A18WV - E1 Single phase 230V,50Hz 2 Total capacity 24 Total capacity 24 Max. 30 (chargeless 20) Max. 20 10 10 Cooling Heating 5.4 (1.55~6.0) 6.6 (1.58~7.2) — — 725/620 w 2 Special remarks 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:) NOTE: Test conditions are based on ISO 5151 (Refrigerant piping length (one way) :5m w Reference value ✽1 Electrical data is for only outdoor unit. ✽2 However, please refer to “INDOOR/OUTDOOR CORRESPONDENCE TABLE” of page 7 for the combination. ✽3 These specifications are when all indoor units are operating. ✽4 Measured under rated operating frequency. TEST CONDITIONS COOLING INDOOR OUTDOOR HEATING INDOOR OUTDOOR DB27.0°C WB19.0°C DB35.0°C WB24.0°C DB20.0°C DB 7.0°C WB 6.0°C 21 OB319--1.qxp 03.12.3 0:55 PM Page 22 Outdoor model Indoor units number Indoor units total capacity (Connectable)✽2 Indoor units total capacity (Simultaneous operation) ✽2 Piping total length m Connecting pipe length m Height difference (Indoor ~ Outdoor) m Height difference (Indoor ~ Indoor) m Function Capacity [Rated (Min~Max.) Hz]✽4 kW Dehumidification R/h Outdoor air flow K /h Power outlet A Running current ✽4 A Power input W Auxiliary heater A(kW) Crankcase heater W Power factor ✽4 % Starting current ✽4 A Compressor motor current A Fan motor current A Coefficient of performance(C.O.P) Model Output W Winding " resistance(at20:) Model Winding " resistance(at20:) Dimensions WOHOD mm Weight kg Sound level (High/Low w ) ✽3 dB Fan speed (High/Low w) ✽3 rpm Fan speed regulator ✽3 Refrigerant filling kg capacity(R410A) Refrigerating oil (Model) cc Thermistor RT61 k" Thermistor RT62 k" Thermistor RT63 k" Thermistor RT68 k" Thermistor RT6A k" Thermistor RT6B k" Thermistor RT6C k" k" Thermistor RT6D Thermistor RT65 k" Special remarks Fan motor Compressor Electrical data Capacity System Outdoor unit power supply MXZ-A32WV - E1 MXZ-A26WV - E1 Single phase Single phase 230V,50Hz 230V,50Hz 2 to 3 2 to 4 Total capacity 54 Total capacity 54 Total capacity 54 Total capacity 54 Max. 50 Max. 70 Max. 25 Max. 25 10 10 10 10 Heating Heating Cooling Cooling 9.0 (2.6~11.0) 9.4 (3.4~11.6) 7.2 (2.9~8.5) 8.0 (3.7~9.2) — — — — 2,630 2,630 2,530 2,530 25 25 9.44 8.48 9.18 9.62 2,090 (720~2,560) 2,150 (530~3,050) 2,190 (810~2,580) 1,930 (590~3,230) — — — — 99.0 99.0 9.44 9.62 9.24 8.28 8.98 9.42 0.2 0.2 4.19 4.87 3.44 3.65 TNB220FMCH (ROTARY) TNB220FMCH (ROTARY) 2,000 2,100 U-V 1.41 U-V 1.41 V-W 1.41 W-U 1.41 V-W 1.41 W-U 1.41 PM8H60-UA PM8H60-UA BLK-WHT 15.2 BLK-WHT 15.2 WHT-RED 15.2 RED-BLK 15.2 WHT-RED 15.2 RED-BLK 15.2 900o900o320 (+35) 900o900o320 (+35) 69 70 w w w 48/46 48/46 w 46/44 46/44 w w w 560/490 560/490 w 550/490 550/490 2 2 3.5 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:) 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:) NOTE: Test conditions are based on ISO5151 (Refrigerant piping length (one way): 5m) w Reference value ✽1 Electrical data is for only outdoor unit. ✽2 However, please refer to “INDOOR/OUTDOOR CORRESPONDENCE TABLE” of page 8 or 9 for the combination. ✽3 These specifications are when all indoor units are operating. ✽4 Measured under rated operating frequency. 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 22 03.12.3 0:55 PM Page 23 NOISE CRITERIA CURVES 6 MXZ-A18WV - E1 FAN SPEED FUNCTION SPL(dB(A)) High Cooling 49 High Heating 50 Test conditions. Cooling :DB 35: Heating :DB 7: MXZ-A26WV - E1 MXZ-A32WV - E1 LINE High Cooling 46 High Heating 48 LINE WB 24: WB 6: OCTAVE BAND SOUND PRESSURE LEVEL, 0dB = 0.0002 MICRO BAR 90 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 20 FAN SPEED FUNCTION SPL(dB(A)) Test conditions. Cooling :DB 35: Heating :DB 7: WB 24: WB 6: 90 OCTAVE BAND SOUND PRESSURE LEVEL, 0dB = 0.0002 MICRO BAR OB319--1.qxp APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 20 NC-20 10 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC-20 10 63 125 250 500 1000 2000 4000 8000 63 BAND CENTER FREQUENCIES, Hz 125 250 500 1000 2000 BAND CENTER FREQUENCIES, Hz 23 4000 8000 OB319--1.qxp 03.12.3 0:55 PM 7 Page 24 OUTLINES AND DIMENSIONS Unit: mm OUTDOOR UNIT MXZ-A18WV - E1 REQUIRED SPACE 500 587 273 65 More than 100mm 34 Air in Air in Open as a rule More than 200mm if the back, both sides and top are open 40 Air out 840 *More than 100mm 200mm or more if there are obstacles to both sides 360 330 50 Drainage 3 holes ([33) Open as a rule More than100mm if the front and both sides are open More than 350mm * 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. 69 121 Service panel 320 } } 195 24 B UNIT A UNIT 90 65 65 65 640 Liquid refrigerant valve (flared [6.35) Gas refrigerant valve (flared [9.52) 03.12.3 0:55 PM Page 25 Unit: mm 200 270 Air in (27) (16) Rubber cushion 250 2-U-shape notched holes (Base bolt M10) Air out 40 (16) 35 (200) 500 35 Less than 25 (Base bolt length) OUTDOOR UNIT MXZ-A26WV - E1 355 387 Air in Veranda 74 Base Drainage holes 3-[33 Gas pipe [9.52(flared)3/8(B,C unit) [12.7(flared)1/2(A unit) 30 900 320 Indoor and outdoor connect wiring 23O45 hole 10 900 88 C unit connection B unit connection A unit connection 33 23 380.8 531.3 250 50 460 317 2-12O36 Oval hole (Base bolt M10) 23 Liquid pipe [6.35(flared)1/4 More than 100 More than 200 Note : Leave front and both sides clearance fully. More than 500 1.Installation space More than 100 2.Service space Note : Leave front and overhead clearance fully. Note : Leave front, overhead and both sides clearance fully. More than 350 More than 100 More than 500 More than 500 More than 100 More than 350 service space 25 More than 500 OB319--1.qxp OB319--1.qxp 03.12.3 0:55 PM Page 26 Unit: mm 35 200 500 250 270 (200) Veranda 2-U-shape notched holes (Base bolt M10) (27) (16) Rubber cushion Air in 35 Less than 25 (Base bolt length) OUTDOOR UNIT MXZ-A32WV - E1 40 (16) 74 355 387 Air in Base Air out Drainage holes 3-[33 Gas pipe [9.52(flared)3/8(C,D unit) [12.7(flared)1/2(A,B unit) 900 30 320 10 900 88 23 480.8 531.3 D unit connection C unit connection B unit connection A unit connection 33 317 350 460 50 Indoor and outdoor connect wiring 23O45 hole 2-12O36 Oval hole (Base bolt M10) 23 Liquid pipe [6.35(flared)1/4 More than 100 More than 200 More than 100 2.Service space Note : Leave front and overhead clearance fully. More than 350 Note : Leave front, overhead and both sides clearance fully. More than 100 More than 500 More than 500 More than 100 More than 350 service space 26 More than 500 Note : Leave front and both sides clearance fully. More than 500 1.Installation space OB319--1.qxp 03.12.3 0:55 PM 8 Page 27 WIRING DIAGRAM MXZ-A18WV - E1 OUTDOOR UNIT 3 ORN X64 U SYMBOL AFM CT61 CT761 C61 C62 C63 C65 DS61 DS62 F61 F801 F911 F912 IPM L 21S4 NAME ACTIVE FILTER MODULE CURRENT TRANSFORMER CURRENT TRANSFORMER SMOOTHING CAPACITOR SMOOTHING CAPACITOR SMOOTHING CAPACITOR OUTDOOR FAN CAPACITOR DIODE MODULE DIODE MODULE FUSE(20A) FUSE(1A) FUSE(1A) FUSE(3.15A) POWER TRANSISTOR MODULE REACTOR BLK C61 R62 TAB64 N CN61 1 2 3 U BLK W SYMBOL LEV(A) LEV(B) L63 MC MF NF NR63 RT6A RT6B RT61 RT62 RT63 RT65 RT68 R62 T801 ELECTRONIC CONTROL P.C.BOARD CN771 TAB67 6 LEV (A) CN772 AFM F801 VWP IPM BLK WHT RED CN912 CN911 1 2 NOISE FILTER P.C.BOARD MC V MF TAB66 SSR61 7 TAB65 BRN BRN RED YLW BLK WHT 1 DS62 CT761 C65 5 4 3 3 1 CN601 C63 3 1 CN602 X61 X62 L63 TAB4 F911 GRN/YLW CT61 BLK 3 BLU TAB62 BLU TAB2 GRN LDE TAB63 L NR63 BLK TAB1 NF F61 R64A R64B C62 F912 CIRCUIT BREAKER POWER TB1 BLK SUPPLY ~/N L 230V 50Hz N PE BLU N DS61 ORN TAB61 RED 3 BLU N CN851 TO INDOOR UNIT No.B CONNECTING 12V TB2 CN901 TO INDOOR UNIT No.A CONNECTING 12V MODEL WIRING DIAGRAM 6 LEV (B) CN663 1 2 CN661 1 2 3 4 CN662 1 2 3 4 5 6 7 8 RT65 RT6A RT6B RT62 RT61 RT63 RT68 WHT RED NAME EXPANSION VALVE A,COIL EXPANSION VALVE B,COIL NORMAL MODE CHOKE COIL COMPRESSOR OUTDOOR FAN MOTOR NOISE FILTER VARISTOR GAS PIPE TEMPERATURE A THERMISTOR GAS PIPE TEMPERATURE B THERMISTOR DISCHARGE TEMPERATURE THERMISTOR DEFROST THERMISTOR EVAPORATOR TEMPERATURE THERMISTOR FIN TEMPERATURE THERMISTOR HIGH-PRESSURE PROTECT THERMISTOR RESISTOR SYMBOL NAME R64A RESISTOR R64B RESISTOR SSR61 SOLENOID COIL RELAY TB1 TERMINAL BLOCK TB2 TERMINAL BLOCK T801 TRANSFORMER X61 FAN MOTOR RELAY FAN MOTOR RELAY X62 X64 RELAY 21S4 R.V. COIL NOTES 1.About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing. 2.Use copper conductors only(for field wiring). 3.Symbols below indicate. :Terminal block :Connector SG79J614H02 27 3 N 3 N 3 N TB4 TB3 TB2 YLW BLU ORN BLU RED BLU 21S4 LEV A SYMBOL LEV E MC MF NR63 N/F PFC R64 R934A, B RS1~4 RT6A~C RT61 LEV B CN901 1 2 3 4 5 X64 3 WHT BLK BLK BLK 2 BLK CN681 1 2 HPS CN662 1 2 3 4 5 6 7 8 RT6A RT6C RT6B 4 1 YLW RED 1 2 3 4 5 6 7 CN702 S R CN4 1 2 T801 RT62 RT63 RT61 RT68 LEV E (3.15A) (250V) F801 LD2 CB1 RS4 RS3 CB3 R934B R934A 1 2 3 CN801 LD1 CB2 POWER BOARD HC932 GRN LD9 IPM CT2 CT1 W V U CN932 CN931 U YLW BLU ORN PNK GRY BLK WHT RED BLK BLK RED WHT BLK MC V W MF SG79Y271H01 NOTES: 1.About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing. 2.Use copper conductors only (for field wiring). 3.Symbols below indicate. :Terminal block :Connector CN795 1 2 3 4 5 6 1 2 CN701 RS2 RS1 CN661 1 2 3 4 5 6 7 8 ELECTRONIC CONTROL P. C. BOARD 1 2 3 4 5 CN781 TAB4 4 BLK NAME SYMBOL NAME EXPANSION VALVE RT62 DEFROST THERMISTOR RT63 EVAPORATION TEMPERATURE THERMISTOR COMPRESSOR OUTDOOR FAN MOTOR (INNER FUSE) RT65 FIN TEMPERATURE THERMISTOR VARISTOR RT68 OUTDOOR HEAT EXCHANGER TEMPERATURE THERMISTOR NOISE FILTER SSR61 SOLENOID COIL RELAY POWER FACTOR CONTROLLER RESISTOR T801 TRANSFORMER RESISTOR TB1~4 TERMINAL BLOCK RESISTOR X64 RELAY GAS PIPE TEMPERATURE THERMISTOR 21S4 R.V. COIL DISCHARGE TEMPERATURE THERMISTOR LEV C (BLU) CN793 1 2 3 4 5 6 GRN GRN R64 NR63 SSR61 N 1 2 3 CN912 (RED) CN792 1 2 3 4 5 6 LDE2 (1A) (250V) F911 CT61 LDE1 N/F F912 (3.15A) (250V) (WHT) CN791 1 2 3 4 5 6 TAB2 TAB1 NAME SMOOTHING CAPACITOR CURRENT TRANSFORMER CURRENT TRANSFORMER FUSE (3.15A) (250V) FUSE (1A) (250V) FUSE (3.15A) (250V) FET ARRAY HIGH PRESSURE SWITCH POWER TRANSISTOR MODULE REACTOR EXPANSION VALVE INDOOR UNIT(C) INDOOR UNIT(B) INDOOR UNIT(A) SYMBOL CB1~3 CT1, 2 CT61 F801 F911 F912 HC932 HPS IPM L LEV A~C TO INDOOR UNIT CONNECTING 12V CIRCUIT BREAKER BLK BLU L N PE POWER SUPPLY ~/N 230V~ TB1 50Hz L PFC WHT GRN/YLW CN601 1 2 3 1 2 3 1 2 3 CN602 CN603 RED BRN BLU ORN YLW WHT BLK NOISE FILTER P. C. BOARD BLK RED BRN BLU ORN YLW WHT BLK BLK BLK GRY GRY BLK BLK GRY GRY GRY GRY BLK RED BRN BLU ORN YLW WHT BLK BLK BLK RED RED 2 1 RED BRN BLU ORN YLW WHT 28 GRY GRY GRY GRY GRY GRY CN5 7 6 5 4 3 2 1 CN2 BLK BLK 1 2 CN902 CN3 1 2 1 2 CN903 RED MXZ-A26WV - E1 OUTDOOR UNIT 3 2 1 03.12.3 0:55 PM 5 4 3 2 1 RT65 OB319--1.qxp Page 28 MODEL WIRING DIAGRAM BLU N SYMBOL CB1~3 CT1, 2 CT61 F801 F911 F912 HC932 HPS IPM L LEV A~D 3 N TB5 3 N TB4 3 N TB3 3 N TB2 BRN BLU YLW BLU ORN BLU RED BLU LEV A SYMBOL LEV E MC MF NR63 N/F PFC R64 R934A, B RS1~4 RT6A~D RT61 LEV B 1 2 3 4 5 CN781 4 TAB4 LEV D CN681 1 2 HPS NAME EXPANSION VALVE COMPRESSOR OUTDOOR FAN MOTOR (INNER FUSE) VARISTOR NOISE FILTER POWER FACTOR CONTROLLER RESISTOR RESISTOR RESISTOR GAS PIPE TEMPERATURE THERMISTOR DISCHARGE TEMPERATURE THERMISTOR LEV C CN901 1 2 3 4 5 X64 3 WHT BLK BLK BLK 2 BLK L 4 1 YLW RED 1 2 3 4 5 6 7 CN702 BLK S R CN4 1 2 LEV E (3.15A) (250V) F801 LD2 CB1 RS4 RS3 CB3 R934B R934A 1 2 3 CN801 LD1 CB2 POWER BOARD WHT HC932 GRN LD9 IPM CT2 CT1 W V U CN932 CN931 U YLW BLU ORN PNK GRY BLK WHT RED BLK BLK RED WHT BLK MC V W MF NOTES: 1.About the indoor side electric wiring SYMBOL NAME refer to the indoor unit electric wiring RT62 DEFROST THERMISTOR diagram for servicing. RT63 EVAPORATION TEMPERATURE THERMISTOR RT65 FIN TEMPERATURE THERMISTOR 2.Use copper conductors only (for field wiring). 3.Symbols below indicate. RT68 OUTDOOR HEAT EXCHANGER TEMPERATURE THERMISTOR :Terminal block :Connector SSR61 SOLENOID COIL RELAY T801 TRANSFORMER SG79Y270H01 TB1~5 TERMINAL BLOCK X64 RELAY 21S4 R.V. COIL RT63 RT61 RT68 RT62 RT6A RT6C RT6B RT6D CN795 1 2 3 4 5 6 T801 RS2 RS1 CN661 1 2 3 4 5 6 7 8 1 2 CN701 PFC CN662 1 2 3 4 5 6 7 8 ELECTRONIC CONTROL P. C. BOARD (GRN) CN794 1 2 3 4 5 6 21S4 (BLU) CN793 1 2 3 4 5 6 GRN GRN 1 2 3 CN912 SSR61 NR63 R64 (RED) CN792 1 2 3 4 5 6 LDE2 (1A) (250V) F911 CT61 LDE1 N/F F912 (3.15A) (250V) (WHT) CN791 1 2 3 4 5 6 TAB2 TAB1 NAME SMOOTHING CAPACITOR CURRENT TRANSFORMER CURRENT TRANSFORMER FUSE (3.15A) (250V) FUSE (1A) (250V) FUSE (3.15A) (250V) FET ARRAY HIGH PRESSURE SWITCH POWER TRANSISTOR MODULE REACTOR EXPANSION VALVE INDOOR UNIT(D) INDOOR UNIT(C) INDOOR UNIT(B) INDOOR UNIT(A) CIRCUIT BREAKER BLK L PE 1 2 3 1 2 3 1 2 3 POWER SUPPLY ~/N 230V~ TB1 50Hz CN601 CN602 CN603 1 2 3 RED BRN BLU ORN YLW WHT TO INDOOR UNIT CONNECTING 12V BLK RED BRN BLU ORN YLW WHT BLK RED BRN BLU ORN YLW WHT CN604 N RED BRN BLU ORN YLW WHT BLK BLK BLK GRN/YLW BLK 2 1 NOISE FILTER P. C. BOARD BLK BLK BLK RED RED CN5 7 6 5 4 3 2 1 CN2 BLK BLK GRY GRY GRY GRY GRY GRY GRY GRY 29 GRY GRY BLK BLK GRY GRY GRY GRY RED 1 2 CN902 CN3 1 2 1 2 CN903 3 2 1 MXZ-A32WV - E1 OUTDOOR UNIT 5 4 3 2 1 03.12.3 0:55 PM RED BRN BLU ORN YLW WHT RT65 OB319--1.qxp Page 29 MODEL WIRING DIAGRAM OB319--1.qxp 03.12.3 0:55 PM Page 30 REFRIGERANT SYSTEM DIAGRAM 9 Unit:mm MXZ-A18WV - E1 R.V. coil heating ON cooling OFF Refrigerant flow in cooling Refrigerant flow in heating Discharge temperature thermistor RT61 Compressor {8 Muffler {12 Stop valve (with service port) Indoor Unit B Indoor Unit A Stop valve (with service port) Gas pipe temperature B thermistor Muffler 4-way valve {12 Gas pipe temperature A thermistor Capillary tube {1.8✕{0.6✕750 Stop valve Capillary tube {3.0✕{2.0✕400 {6 Indoor Unit A Indoor Unit B Evaporation temperature thermistor RT63 High-pressure protect thermistor RT68 Outdoor heat exchanger Strainer LEV (A) Capillary tube {3.0✕{1.8✕600 Strainer #100 {6 Strainer Stop valve #100 Defrost thermistor RT62 Capillary tube {3.0✕{2.0✕400 LEV (B) 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 Indoor units a Outdoor unit H ❋It does not matter which unit is higher. H Outdoor unit Refrigerant piping length (one way, 2 unit total) precharged 20m 30m 25m 1,750 0 100 200 H Calculation : Xg=20g/mx(Refrigerant piping length(m)-20) b ● 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, see page BACK COVER. Unit : mm (inch) Indoor unit class 07/09 12 Pipe diameter Extension pipe diameter 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) Outdoor unit union diameter For Indoor unit A Indoor unit B 30 Liquid 6.35(1/4) Gas 9.52(3/8) Liquid 6.35(1/4) Gas 9.52(3/8) OB319--2.qxp 03.12.3 0:56 PM Page 31 MXZ-A26WV - E1 Unit:mm [16 Compressor R.V. coil heating ON cooling OFF Discharge temperature thermistor RT61 High-pressure switch Refrigerant flow in cooling Refrigerant flow in heating Oil separator Ball valve with service port Indoor unit C Indoor unit B Indoor unit A Unit C gas pipe temperature thermistor Unit B gas pipe temperature thermistor [16 Capillary tube [2.5✕[0.6✕1000 Service port 4-way valve [16 [9.52 [16 [16 Muffler [9.52 Unit A gas pipe temperature thermistor Evaporation temperature thermistor RT63 [12.7 Outdoor heat exchanger Outdoor heat exchanger temperature thermistor RT68 Capillary tube [2.0✕[0.6✕750 [6 Capillary tube [4.0✕[2.8✕ 90 Indoor unit A Indoor unit B Indoor unit C [6.35 Strainer LEV A #100 Capillary tube [4.0✕[2.8✕ 90 Strainer LEV B #100 Capillary tube [4.0✕[2.8✕ 90 Strainer #100 LEV C Defrost thermistor RT62 Strainer #100 Ball valve with service port Capillary tube [4.0✕[2.4✕400 Distributor LEV E Receiver [6.35 [9.52 Distributor [6.35 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 Indoor units a b Outdoor unit H H ❋It does not matter which unit is higher. Outdoor unit Refrigerant piping length (one way, 3 unit total) precharged 40m 50m 45m 3,500 0 100 H c 200 Calculation : Xg=20g/mx(Refrigerant piping length(m)-40) ● 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,see page BACK COVER. Unit : mm (inch) Indoor unit class 07/09 12 18 24 26 Pipe diameter Liquid 6.35(1/4) Extension pipe diameter 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) Outdoor unit union diameter For Indoor unit A Indoor unit B Gas 9.52(3/8) or 12.7(1/2) 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) Indoor unit C 31 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) OB319--2.qxp 03.12.3 0:56 PM Page 32 Unit:mm MXZ-A32WV - E1 [16 Compressor R.V. coil heating ON cooling OFF Indoor unit D Indoor unit C Indoor unit B Indoor unit A Discharge temperature thermistor RT61 High-pressure switch Refrigerant flow in cooling Refrigerant flow in heating Oil separator Unit D gas pipe temperature thermistor [9.52 Unit C gas pipe temperature thermistor Unit B gas pipe temperature thermistor Unit A gas pipe temperature thermistor [16 Capillary tube [2.5✕[0.6✕1000 Ball valve with service port Service port 4-way valve [16 [9.52 [16 [16 Muffler [12.7 Evaporation temperature thermistor RT63 [12.7 Outdoor heat exchanger Outdoor heat exchanger temperature thermistor RT68 Capillary tube [2.0✕[0.6✕750 [6 Capillary tube [4.0✕[2.8✕ 90 Strainer #100 Indoor unit B Indoor unit C Indoor unit D LEV A Strainer #100 LEV B Strainer #100 LEV C Strainer #100 LEV D [6.35 Ball valve with service port [6.35 Receiver [9.52 [6.35 Distributor [6.35 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 Indoor units a b 25 Total bending point 70 ❋It does not matter which unit is higher. Refrigerant piping length (one way, 4 unit total) Outdoor unit precharged 40m 60m 50m 70m 0 Capillary tube [4.0✕[2.4✕400 Distributor LEV E MAX REFRIGERANT PIPING LENGTH 3,500 Defrost thermistor RT62 Strainer #100 Indoor unit A 400 200 600 Outdoor unit H H c H d Calculation : Xg=20g/mx(Refrigerant piping length(m)-40) ● 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,see page BACK COVER. Unit : mm (inch) Indoor unit class 07/09 12 18 24 26 Pipe diameter Liquid 6.35(1/4) Extension pipe diameter 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 9.52(3/8) or 12.7(1/2) Gas 12.7(1/2) Outdoor unit union diameter For Indoor unit A Indoor unit B 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) Indoor unit C 32 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) OB319--2.qxp 03.12.3 0:56 PM 10 Page 33 PERFORMANCE CURVES MXZ-A18WV- E1 MXZ-A26WV- E1 MXZ-A32WV- E1 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 Cooling (3) Outdoor intake air dry-bulb temperature : °CDB (4) Total input: W (5) Indoor intake air dry-bulb temperature : °CDB Heating (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 chart on page 34 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. 2. 3. 4. 5. 6. 7. 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. 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. Check that the air filter is cleaned. Open windows and doors of room. Press the EMERGENCY OPERATION switch once(twice) to start the EMERGENCY COOL (HEAT) MODE. When system stabilizes after more than 15 minutes, measure temperature and take an average temperature. 10 minutes later, measure temperature again and check that the temperature does not change. INDOOR UNIT OUTDOOR UNIT Wet-and dry-bulb thermometers Wet-and dry-bulb thermometers 33 OB319--2.qxp 03.12.3 0:56 PM Page 34 10-1. Capacity and the input curves MXZ-A18WV- E1 8.5 9.7 7.1 7.8 8.8 6.4 7.0 7.9 5.8 6.3 7.1 5.1 5.6 6.3 12 class 7.8 09 class 9.3 10.6 07 class 8.5 25.4 24.0 25.9 23.4 22.2 23.9 21.5 20.3 21.9 19.5 18.5 19.9 17.6 16.6 17.9 11.1 12.0 12 class 12.9 13.9 11.7 09 class 14.8 15.9 07 class 15.6 13.7 MXZ-A26WV- E1 MXZ-A32WV- E1 7.1 7.8 8.8 10.8 11.3 13.9 6.4 7.0 7.9 9.7 10.1 12.5 5.8 6.3 7.1 8.7 9.0 11.1 5.1 5.6 6.3 7.7 8.0 9.7 09 class 26 class 15.4 24 class 17.0 11.9 12.4 18 class 13.1 13.7 8.5 9.7 12 class 9.3 10.6 7.8 07 class 8.5 25.4 24.0 25.9 31.4 31.9 35.1 23.4 22.2 23.9 29.0 29.4 32.4 21.5 20.3 21.9 26.6 27.0 29.7 19.5 18.5 19.9 24.1 24.5 27.0 17.6 16.6 17.9 21.7 22.1 24.3 14.5 14.7 16.2 26 class 11.1 12.0 24 class 18.9 11.7 18 class 21.6 16.9 17.2 12 class 19.3 19.6 12.9 13.9 09 class 14.8 15.9 07 class 15.6 13.7 34 OB319--2.qxp 03.12.3 0:56 PM Page 35 10-2. Capacity and input correction by inverter output frequency (OUTDOOR UNIT : MXZ-A18WV) 1. 07-class unit in single operation 1.5 <COOL>Capacity <COOL>Total input 1.5 1.5 <HEAT>Capacity 1.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0 50 100 150 Hz 0 50 Frequency 100 Frequency 150 Hz 0 50 100 Frequency 150 Hz 0 <HEAT>Total input 50 100 Frequency 150 Hz 2. 09-class unit in single operation 1.5 <COOL>Capacity 1.5 <COOL>Total input 1.5 <HEAT>Capacity 1.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0 50 100 150 Hz 0 50 Frequency 100 Frequency 150 Hz 0 50 100 150 Hz 0 <HEAT>Total input 50 Frequency 100 Frequency 150 Hz 3. 12-class unit in single operation 1.5 <COOL>Capacity 1.5 <COOL>Total input 1.5 <HEAT>Capacity 1.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0 50 100 Frequency 150 Hz 0 50 100 Frequency 150 Hz 0 50 100 Frequency 35 150 Hz 0 <HEAT>Total input 50 100 Frequency 150 Hz OB319--2.qxp 03.12.3 0:56 PM Page 36 (OUTDOOR UNIT:MXZ-A26WV, MXZ-A32WV) 1. 07-class unit in single operation <COOL>Capacity <HEAT>Capacity <COOL>Total input <HEAT>Total input 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0 50 100 150 Hz 0 Frequency 50 100 0 150 Hz 50 100 150 Hz 0 Frequency Frequency 50 100 150 Hz Frequency 2. 09-class unit in single operation <COOL>Capacity <HEAT>Capacity <COOL>Total input <HEAT>Total input 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0 50 100 150 Hz 0 Frequency 50 100 0 150 Hz 50 100 150 Hz 0 Frequency Frequency 50 100 150 Hz Frequency 3. 12-class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0 50 100 150 Hz 0 Frequency 50 100 150 Hz 0 Frequency 50 100 150 Hz 0 Frequency 50 100 150 Hz Frequency 4. 18-class unit in single operation <COOL>Capacity <HEAT>Capacity <COOL>Total input <HEAT>Total input 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0 50 100 150 Hz 0 Frequency 50 100 150 Hz 0 50 100 150 Hz 0 Frequency Frequency 50 100 150 Hz Frequency 5. 24-class unit in single operation <COOL>Capacity <HEAT>Capacity <COOL>Total input <HEAT>Total input 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0 50 100 Frequency 150 Hz 0 50 100 150 Hz 0 50 100 Frequency Frequency 36 150 Hz 0 50 100 Frequency 150 Hz OB319--2.qxp 03.12.3 0:56 PM Page 37 6. 26-class unit in single operation <COOL>Capacity <HEAT>Capacity <COOL>Total input <HEAT>Total input 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0 50 100 Frequency 150 Hz 0 50 100 150 Hz 0 50 100 Frequency Frequency 37 150 Hz 0 50 100 Frequency 150 Hz OB319--2.qxp 03.12.3 0:56 PM Page 38 10-3. Outdoor low pressure and outdoor unit current 1. 07-class unit in single operation (OUTDOOR UNIT : MXZ-A18WV) NOTE:The unit of pressure has been changed to MPa on the international system of units(SI unit system). f[Gauge]) The conversion factor is : 1(MPa[Gauge]) =10.2(kgf/f (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 <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 rated 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. 2Air flow speed : High 3Inverter output frequency : 33Hz 14 1.4 13 1.3 12 1.2 11 1.1 10 1.0 9 0.9 8 0.8 7 0.7 6 0.6 5 0.5 15 5 Outdoor unit current (A) Outdoor low pressure (kgf/F[Gauge])(MPa[Gauge]) 1.5 15 33Hz 20 50 25 60 33Hz 3 2 1 35 (:) (%) 30 70 4 15 Ambient temperature(:)/ Ambient humidity(%) 20 50 25 60 35 (:) (%) 30 70 Ambient temperature(:)/ Ambient humidity(%) (2) HEAT operation DB(°C) 20.0 Outdoor DB(°C) WB(°C) 14.5 ➁ Set air flow to High speed. ➂ Inverter output frequency is 45Hz. WB(°C) 2 7 15 20.0 1 6 12 14.5 8 Outdoor unit current (A) ① Indoor 7 45Hz 6 5 4 3 2 5 10 15 20 Ambient temperature(:) 38 25 OB319--2.qxp 03.12.3 0:56 PM Page 39 2. 09-class unit in single operation (OUTDOOR UNIT : MXZ-A18WV) NOTE:The unit of pressure has been changed to MPa on the international system of units(SI unit system). f[Gauge]) The conversion factor is : 1(MPa[Gauge]) =10.2(kgf/f (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 <How to work fixed-frequency operation> 1.Set emergency switch to COOL or HEAT. The switch is located on indoor unit. 2.Press emergency run ON/OFF button. 3.Compressor starts running at rated 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. 2Air flow speed : High 3Inverter output frequency : 33Hz 13 1.3 12 1.2 11 1.1 10 1.0 9 0.9 8 0.8 7 0.7 6 0.6 5 0.5 15 5 Outdoor unit current (A) Outdoor low pressure (kgf/F[Gauge])(MPa[Gauge]) 1.5 15 1.4 14 33Hz 20 50 25 60 33Hz 3 2 1 15 35 (:) (%) 30 70 4 Ambient temperature(:)/ Ambient humidity(%) 20 50 25 60 35 (:) (%) 30 70 Ambient temperature(:)/ Ambient humidity(%) (2) HEAT operation DB(°C) 20.0 Outdoor DB(°C) WB(°C) 14.5 ➁ Set air flow to High speed. ➂ Inverter output frequency is 45Hz. WB(°C) 2 7 15 20.0 1 6 12 14.5 8 Outdoor unit current (A) ① Indoor 7 45Hz 6 5 4 3 2 5 10 15 20 Ambient temperature(:) 39 25 OB319--2.qxp 03.12.3 0:56 PM Page 40 3. 12-class unit in single operation (OUTDOOR UNIT : MXZ-A18WV) NOTE:The unit of pressure has been changed to MPa on the international system of units(SI unit system). f[Gauge]) The conversion factor is : 1(MPa[Gauge]) =10.2(kgf/f (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 <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 rated frequency. 4.Indoor fan runs at HI speed and continues for 30 minutes. 5.To cancel this operation, press emergency operation button or any button on remote controller. 2Air flow speed : High 3Inverter output frequency : 33Hz 13 1.3 12 1.2 11 1.1 10 1.0 9 0.9 8 0.8 7 0.7 6 0.6 5 0.5 15 5 Outdoor unit current (A) Outdoor low pressure (kgf/F[Gauge])(MPa[Gauge]) 1.5 15 1.4 14 33Hz 20 50 25 60 33Hz 3 2 1 15 35 (:) (%) 30 70 4 Ambient temperature(:)/ Ambient humidity(%) 20 50 25 60 35 (:) (%) 30 70 Ambient temperature(:)/ Ambient humidity(%) (2) HEAT operation DB(°C) 20.0 Outdoor DB(°C) WB(°C) 14.5 ➁ Set air flow to High speed. ➂ Inverter output frequency is 45Hz. WB(°C) 2 7 15 20.0 1 6 12 14.5 8 Outdoor unit current (A) ① Indoor 7 45Hz 6 5 4 3 2 5 10 15 20 Ambient temperature(:) 40 25 OB319--2.qxp 03.12.3 0:56 PM 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). f[Gauge]) The conversion factor is : 1(MPa[Gauge]) =10.2(kgf/f (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 <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 rated 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. 2Air flow speed : High 3Inverter output frequency : 24Hz (kgf/F[Gauge]) (MPa[Gauge]) 1.2 12 5 24Hz 1.1 10 1.0 9 0.9 8 0.8 Outdoor unit current (A) Outdoor low pressure 11 7 0.7 6 0.6 15 20 50 25 60 35 (:) 30 70 4 24Hz 3 2 1 15 (%) Ambient temperature(:)/ Ambient humidity(%) 20 50 30 70 25 60 35 (:) (%) Ambient temperature(:)/ Ambient humidity(%) (2) HEAT operation DB(°C) 20.0 Outdoor DB(°C) WB(°C) 14.5 ➁ Set air flow to High speed. ➂ Inverter output frequency is 32Hz. WB(°C) 2 7 15 20.0 1 6 12 14.5 7 Outdoor unit current (A) ① Indoor 6 32Hz 5 4 3 2 5 10 15 20 Ambient temperature(:) 41 25 OB319--2.qxp 03.12.3 0:56 PM 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). f[Gauge]) The conversion factor is : 1(MPa[Gauge]) =10.2(kgf/f (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 <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 rated 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. 2Air flow speed : High 3Inverter output frequency : 24Hz (kgf/F[Gauge]) (MPa[Gauge]) 1.2 12 5 24Hz Outdoor unit current (A) Outdoor low pressure 11 1.1 10 1.0 9 0.9 8 0.8 7 0.7 6 0.6 15 20 50 25 60 35 (:) 30 70 4 24Hz 3 2 1 15 (%) Ambient temperature(:)/ Ambient humidity(%) 20 50 30 70 25 60 35 (:) (%) Ambient temperature(:)/ Ambient humidity(%) (2) HEAT operation DB(°C) 20.0 Outdoor DB(°C) WB(°C) 14.5 ➁ Set air flow to High speed. ➂ Inverter output frequency is 32Hz. WB(°C) 2 7 15 20.0 1 6 12 14.5 7 Outdoor unit current (A) ① Indoor 6 32Hz 5 4 3 2 5 10 15 20 Ambient temperature(:) 42 25 OB319--2.qxp 03.12.3 0:56 PM 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). f[Gauge]) The conversion factor is : 1(MPa[Gauge]) =10.2(kgf/f (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 <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 rated 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. 2Air flow speed : High 3Inverter output frequency : 24Hz (kgf/F[Gauge]) (MPa[Gauge]) 1.3 13 5 1.2 11 1.1 10 1.0 9 0.9 Outdoor unit current (A) Outdoor low pressure 24Hz 12 8 0.8 7 0.7 15 20 50 25 60 35 (:) 30 70 4 24Hz 3 2 1 15 (%) Ambient temperature(:)/ Ambient humidity(%) 20 50 30 70 25 60 35 (:) (%) Ambient temperature(:)/ Ambient humidity(%) (2) HEAT operation ① Indoor DB(°C) 20.0 Outdoor DB(°C) 2 7 15 20.0 WB(°C) 14.5 WB(°C) 1 6 12 14.5 ➁ Set air flow to High speed. ➂ Inverter output frequency is 32Hz. Outdoor unit current (A) 7 6 32Hz 5 4 3 2 5 10 15 20 Ambient temperature(:) 43 25 OB319--2.qxp 03.12.3 0:56 PM 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). f[Gauge]) The conversion factor is : 1(MPa[Gauge]) =10.2(kgf/f (1) COOL operation ① Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature(°C) Relative humidity(%) 20 50 25 60 30 ➁ Air flow speed : High ➂ Inverter output frequency : 24Hz 70 (kgf/F[Gauge]) (MPa[Gauge]) 1.3 13 5 24Hz 1.2 11 1.1 10 1.0 9 0.9 Outdoor unit current (A) Outdoor low pressure 12 <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 rated frequency. 4.Indoor fan runs at High speed. 5.To cancel this operation,press emergency operation button or any button on remote controller. 8 0.8 7 0.7 15 20 50 25 60 35 (:) 30 70 4 24Hz 3 2 1 15 (%) Ambient temperature(:)/ Ambient humidity(%) 20 50 30 70 25 60 35 (:) (%) Ambient temperature(:)/ Ambient humidity(%) (2) HEAT operation DB(°C) 20.0 Outdoor DB(°C) WB(°C) 14.5 ➁ Set air flow to High speed. ➂ Inverter output frequency is 32Hz. WB(°C) 2 7 15 20.0 1 6 12 14.5 7 Outdoor unit current (A) ① Indoor 6 5 32Hz 4 3 2 5 10 15 20 Ambient temperature(:) 44 25 OB319--2.qxp 03.12.3 0:56 PM 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). f[Gauge]) The conversion factor is : 1(MPa[Gauge]) =10.2(kgf/f (1) COOL operation ① Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature(°C) Relative humidity(%) 20 50 25 60 30 70 ➁ Air flow speed : High ➂ Inverter output frequency : 24Hz <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 rated 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]) (MPa[Gauge]) 1.4 14 5 24Hz 1.3 12 1.2 11 1.1 10 1.0 Outdoor unit current (A) Outdoor low pressure 13 9 0.9 8 0.8 15 20 50 25 60 35 (:) 30 70 4 24Hz 3 2 1 15 (%) Ambient temperature(:)/ Ambient humidity(%) 20 50 30 70 25 60 35 (:) (%) Ambient temperature(:)/ Ambient humidity(%) (2) HEAT operation ① Indoor DB(°C) 20.0 Outdoor DB(°C) 2 7 15 20.0 WB(°C) 14.5 WB(°C) 1 6 12 14.5 ➁ Set air flow to High speed. ➂ Inverter output frequency is 32Hz. Outdoor unit current (A) 7 6 5 32Hz 4 3 2 5 10 15 20 Ambient temperature(:) 45 25 OB319--2.qxp 03.12.3 0:56 PM 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). f[Gauge]) The conversion factor is : 1(MPa[Gauge]) =10.2(kgf/f (1) COOL operation ① Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature(°C) Relative humidity(%) 20 50 25 60 30 ➁ Air flow speed : High ➂ Inverter output frequency : 24Hz 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 rated 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]) (MPa[Gauge]) 1.4 14 5 24Hz 1.3 Outdoor unit current (A) Outdoor low pressure 13 12 1.2 11 1.1 10 1.0 9 0.9 8 0.8 15 20 50 25 60 35 (:) 30 70 4 24Hz 3 2 1 15 (%) Ambient temperature(:)/ Ambient humidity(%) 20 50 30 70 25 60 35 (:) (%) Ambient temperature(:)/ Ambient humidity(%) (2) HEAT operation DB(°C) 20.0 Outdoor DB(°C) WB(°C) 14.5 ➁ Set air flow to High speed. ➂ Inverter output frequency is 32Hz. WB(°C) 2 7 15 20.0 1 6 12 14.5 7 Outdoor unit current (A) ① Indoor 6 5 32Hz 4 3 2 5 10 15 20 Ambient temperature(:) 46 25 OB319--2.qxp 03.12.3 0:56 PM 11 Page 47 MICROPROCESSOR CONTROL 11-1. INVERTER MULTI SYSTEM CONTROL MXZ-A18WV - E1 Output signal Input signal Compressor power factor Indoor unit microprocessor Compressor primary current Compressor secondary current Outdoor unit control microprocessor Drive circuit SSR61 Transistor module Fin temperature thermistor RT65 Comp. Discharge temperature thermistor RT61 Gas pipe temperature thermistor RT6B x 61 x 62 R. V. coil 21S4 Indoor Unit B Indoor Unit A High-pressure protect thermistor RT68 Gas pipe temperature thermistor RT6A Evaporation temperature thermistor RT63 Outdoor fan motor MF LEV (A) Indoor Unit A LEV (B) Indoor Unit B 47 Defrost thermistor RT62 OB319--2.qxp 03.12.3 0:56 PM Page 48 MXZ-A26WV - E1 Output signal Input signal Indoor unit microprocessor Outdoor unit control microprocessor SSR61 Compressor primary current Fan motor drive microprocessor IPM/PFC Drive microprocessor Drive Transistor circuit module PFC module Drive circuit Fin temperature thermistor RT65 Compressor secondary current Transistor module Comp. Discharge temperature thermistor RT61 High-pressure switch 63H1 R. V. coil 21S4 Indoor Unit C Indoor Unit B Indoor Unit A Outdoor heat exchanger temperature thermistor RT68 Muffler Gas pipe temperature thermistor RT6A, B, C Evaporation temperature thermistor RT63 Outdoor fan motor MF Indoor Unit A Indoor Unit B Indoor Unit C LEV A LEV E LEV B LEV C 48 Defrost thermistor RT62 OB319--2.qxp 03.12.3 0:56 PM Page 49 MXZ-A32WV - E1 Output signal Input signal Indoor unit microprocessor Outdoor unit control microprocessor SSR61 Compressor primary current Fan motor drive microprocessor IPM/PFC Drive microprocessor Drive Transistor circuit module PFC module Drive circuit Fin temperature thermistor RT65 Compressor secondary current Transistor module Comp. Discharge temperature thermistor RT61 High-pressure switch 63H1 Indoor Unit D Indoor Unit C Indoor Unit B Indoor Unit A R. V. coil 21S4 Gas pipe temperature thermistor RT6A, B, C, D Outdoor heat exchanger temperature thermistor RT68 Evaporation temperature thermistor RT63 Outdoor fan motor MF Indoor Unit A Indoor Unit B Indoor Unit C Indoor Unit D LEV A LEV E LEV B LEV C LEV D 49 Defrost thermistor RT62 OB319--2.qxp 03.12.3 0:56 PM Page 50 11-2.Heat defrosting control (1) Conditions to enter defrosting mode 1. When temperature of defrosting thermistor is -3; or less. 2.When specified non-defrosting time, is counted in the control p.c.board is satisfied. (Total time of compressor operating) Going to defrosting mode at both condition of 1 and 2. (2) Defrosting operation 1. Compressor stops for 50 seconds, Indoor fan is off, Defrosting lamp lights. 2.4-way valve reverses flow, Compressor operates by the frequency in heat defrosting control. 3. After compressor stops for 35 seconds, 4-way valve reverses flow, then defrosting finishes. (3) Conditions to finish defrosting mode 1. When the defrosting thermistor temperature is 13.2; or more. 2. When it has spent 10 minutes for defrosting. Defrosting finishes at condition of 1 or 2. 11-3.Discharge temperature protection control This protection controls the compressor ON/OFF and operation frequency according to temperature of the discharge temperature thermistor. (1) Compressor ON/OFF When temperature of the discharge temperature thermistor exceeds 116;, the control stops the compressor. When temperature of the discharge temperature thermistor is 80; or less, the controls starts the compressor. (2) Compressor operation frequency When temperature of the discharge temperature thermistor is expected to be higher than 116;, the control decreases 12Hz from the current frequency. When temperature of the discharge temperature thermistor is expected to be higher than 111; and less than 116;, the control decreases 6Hz from the current frequency. When temperature of the discharge temperature thermistor is expected to be higher than 104; and less than 111;, the control is set at the current frequency. 11-4.Refrigerant recovery control on heating <Control status> The control performs when the all the following status are satisfied; • When one or more indoor units are operating in HEAT mode. (Excluding thermostat OFF) • When discharge temperature becomes 107; or more. • When it passed 60 minutes or more since the operation has started or the last refrigerant recovery has controlled. <Control details> LEV opening of indoor unit not operating is controlled to be 80 pulse. <Control finish status> The control finishes either as follows. However, the LEV opening is considered to be 59 pulse. • When it passed 60 seconds since the control has started. • When the discharge temperature is 90; or less. 11-5.Outdoor fan control Fan speed is switched according to the number of operating indoor unit and the compressor frequency. Fan speed Down High Up Low Min. Compressor frequency Max. <Relation between compressor frequency and fan speed.> MXZ-A18WV Mode COOL HEAT Fan speed Up Indoor unit operation 1 unit 2 units 60Hz 60Hz Down 50Hz 50Hz Up 60Hz 60Hz Down 50Hz 50Hz MXZ-A26WV, A32WV Mode COOL HEAT Fan speed Up Indoor unit operation 1 unit 2 units 3, 4 units 45Hz 50Hz 55Hz Down 35Hz 40Hz 45Hz Up 50Hz 55Hz 60Hz Down 40Hz 45Hz 50Hz Note • When the indoor coil thermistor is 57; or more on HEAT operation, fan speed is fixed to Low speed. Or, the indoor coil thermistor is 45; or less on HEAT operation, fan speed is back to normal. 50 OB319--2.qxp 03.12.3 0:56 PM Page 51 11-6.Cooling at low outside temperature Unlike the usual fan control, the number of rotation is controlled to let the temperature of the outdoor heat exchanger become around 40: when the unit is operating in COOL mode at low outside temperature. <Details of Fan Control> (a) The number of rotation will be increased when the temperature of the outdoor heat exchanger is high. (b) The number of rotation will be decreased when the temperature of the outdoor heat exchanger is low. The number of rotation will be lowered to around 100 rpm (rotation per minute) when just a few indoor units are operating or when the outside temperature is low. When the number of rotation is lowered to around 100 rpm, the fan may stop by the influence of wind, but restarts 30 seconds later. 11-7.Relation between main sensor and actuator Relation between main sensor and actuator. MXZ-A18WV Sensor Purpose Discharge temperature thermistor Protection Indoor pipe temperature thermistor Defrosting Protection Defrost thermistor Evaporation temperature thermistor Gas pipe temperature thermistor Compressor Defrosting Control Control Fin temperature thermistor Protection High-pressure protect thermistor Protection Capacity code Actuator Outdoor Reversing LEV fan motor valve Control MXZ-A26WV, A32WV Sensor Purpose Discharge temperature thermistor Protection Indoor pipe temperature thermistor Defrosting Protection Defrost thermistor Compressor Defrosting Evaporation temperature thermistor Control Gas pipe temperature thermistor Control Fin temperature thermistor Protection Outdoor heat exchanger temperature Protection Capacity code Control 51 Actuator Outdoor Reversing LEV fan motor valve OB319--2.qxp 12 03.12.3 0:56 PM Page 52 TROUBLESHOOTING MXZ-A18WV- E1 MXZ-A26WV- E1 MXZ-A32WV- E1 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 first turn off the remote controller to stop the unit, 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 electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the components. 4) When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires. Lead wiring Housing point 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 the flow chart on this page and the check table on page 53, 54, 55 and 56. 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-A18WV - E1 MXZ-A26WV - E1 MXZ-A32WV - E1 Operation start Check the outdoor unit LED indicator. OFF A Check of power supply See page 58. • Indoor unit serial signal error B Check of serial signal See page 59. LED 1 or LED 2 has blinked. Both LED 1 and LED 2 lighting • COOL or HEAT operation only C Check of R.V.coil See page 60. Refer to indicator list on page 53,54,55 and 56. • When cooling, heat exchanger of non-operating indoor unit frosts. •When heating, nonoperating indoor unit gets warm. D Check of LEV See page 61. • When cooling, dew drops in the non-operating indoor unit. Check of mispiping 52 • When heating, room does not get warm. E Check of inverter, compressor See page 62 or 63. Check mis-piping, shortage of capacity • When cooling, room does not cool. E Check of inverter, compressor See page 62 or 63. OB319--2.qxp 03.12.3 0:56 PM Page 53 12-3. Troubleshooting check table MXZ-A18WV - E1 LED 1 (Red) Lighting LED 2 (Yellow) Lighting Error mode Normal Symptom: Outdoor unit does not operate. Indication LED 1 LED 2 (Red) (Yellow) Abnormal point Detecting method Check points Lighting Once Indoor unit and LEV When the drain abnormality is detected in the indoor unit and the indoor • Check the abnormality indication on the indoor unit. unit coil temperature is too low, or when any abnormality is detected in • Check the LEV. the components of indoor unit. 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 7 times Outdoor control system 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 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. Lighting 9 times DC voltage sensing circuit When DC voltage sensing circuit detects 57V or below or 395V or above. • Replace the outdoor electronic control P.C. board. Symptom: It is repeated that outdoor unit stops and restarts 3 minutes later. Indication LED 1 LED 2 (Red) (Yellow) Lighting Lighting 3 times 4 times Abnormal point Detecting method Check points Discharge temperature thermistor When a short or open circuit occurs in the discharge temperature thermistor during compressor operating. • Check the characteristic of the discharge temperature thermistor. • Check the connector. (CN662) Fin temperature thermistor When a short or open circuit occurs in the fin temperature thermistor during compressor operating. • Check the characteristic of the fin temperature thermistor. • Check the connector. (CN663) P.C. board temperature thermistor When a short or open circuit occurs in the P.C. board temperature thermistor during compressor operating. • Replace the outdoor electronic control P.C. board. Lighting 5 times Evaporation temperature When a short or open circuit occurs in the evaporation temperature thermistor during compressor operating. thermistor • Check the characteristic of the evaporation temperature thermistor. • Check the connector. (CN662) Lighting 5 times High-pressure protect thermistor When high-pressure protect thermistor is short or open while compressor is operating. • Check the characteristic of the high pressure protect thermistor. • Check the connector. (CN662) 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 A thermistor. • Check the connector. (CN661) 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 B thermistor. • Check the connector. (CN661) When overcurrent is applied to 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. When the discharge temperature thermistor detects 116: or above. (Protection will be released at 100: or below.) • Check the amount of gas and the refrigerant cycle. • Check the outdoor unit air passage. When the fin temperature thermistor detects 87: or above. • Check the outdoor unit air passage. • Check the outdoor fan motor. • Check the power module. 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. Lighting 10 times Twice Goes out Overcurrent protection 3 times Goes out Discharge temperature overheat protection 4 times Goes out Fin temperature overheat protection 4 times Goes out P.C. board temperature overheat protection 5 times Goes out High-pressure protection When high-pressure protect thermistor detects 69: or more. 53 • Check the outdoor unit air passage. • Check the outdoor fan motor. OB319--2.qxp 03.12.3 0:56 PM Page 54 Symptom: Outdoor unit operates (The compressor operates at reduced frequency) Indication LED 1 LED 2 (Red) (Yellow) Abnormal point Detecting method Once Lighting Current protection 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. 6 times Lighting Overload protection Check points When the outdoor unit input current exceeds 13A. 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 When the compressor load exceeds the specified value. Symptom: Outdoor unit operates. Indication LED 1 LED 2 (Red) (Yellow) Lighting Abnormal point Detecting method Check points 5 times Defrost thermistor When a short or open circuit occurs in the defrost thermistor during heating. • Check the characteristic of the defrost temperature thermistor. • Check the connector. (CN662) When the compressor power factor cannot be detected. • Check the compressor wiring. Lighting 6 times Power factor detection Lighting 8 times Active filter module protection When active filter module self-protection has been performed. Lighting 9 times Service mode When operating unit with compressor relay connector disconnected. 54 OB319--2.qxp 03.12.3 0:56 PM MXZ-A26WV - E1 Page 55 MXZ-A32WV - E1 LED 1 (Red) Lighting LED 2 (Yellow) Lighting Error mode Normal Symptom: Outdoor unit does not operate. Indication LED 1 LED 2 (Red) (Yellow) Abnormal point Detecting method Check points Lighting Once Indoor unit and LEV When the drain abnormality is detected in the indoor unit and the indoor • Check the abnormality indication on the indoor unit. unit coil temperature is too low, or when any abnormality is detected in • Check the LEV. the components of indoor unit. 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, or when power factor control module protection or DC control protection is • Check the inverter/compressor. activated three times within 3 minutes after the compressor get started. Lighting 7 times Outdoor control system 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. Symptom: It is repeated that outdoor unit stops and restarts 3 minutes later. Indication LED 1 LED 2 (Red) (Yellow) Lighting Lighting 3 times 4 times Abnormal point Detecting method Discharge temperature thermistor When a short or open circuit occurs in the discharge temperature thermistor during compressor operating. • Check the characteristic of the discharge temperature thermistor. • Check the connector. (CN661) Fin temperature thermistor When a short or open circuit occurs in the fin temperature thermistor during compressor operating. • Check the characteristic of the fin temperature thermistor. • Check the connector. (CN3) P.C. board temperature thermistor When a short or open circuit occurs in the P.C. board temperature thermistor during compressor operating. • Replace the outdoor electronic control P.C. board. Evaporation temperature When a short or open circuit occurs in the evaporation temperature thermistor during compressor operating. thermistor Lighting 5 times Lighting 5 times Outdoor heat exchanger When outdoor heat exchanger temperature thermistor is short or open temperature thermistor while compressor is operating. Lighting 6 times • Check if the connection lead wires of compressor are correctly connected. 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 A thermistor. • Check the connector. (CN662) 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 B 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 C 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 gas pipe temperature D thermistor. • Check the connector. (CN662) Communication error between P.C. boards When the communication failure between the outdoor electronic control • Check if the connection wires between outdoor electronic control P.C. board and P.C. board and power board occurs twice consecutively. power board are correctly connected. Goes out Overcurrent protection 3 times Goes out Discharge temperature overheat protection 4 times Goes out • Check the characteristic of the high pressure protect thermistor. • Check the connector. (CN661) When the output from compressor current sensor becomes 25A or more while the compressor is operating. Lighting 12 times Zero cross signal error Twice • Check the characteristic of the evaporation temperature thermistor. • Check the connector. (CN661) Current sensor Lighting 10 times Lighting 11 times Check points Fin temperature overheat protection When zero cross signal cannot be detected while the compressor is operating. • Check if the connection wires between noise filter P.C. board and power board are correctly connected. When overcurrent is applied to 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. When the discharge temperature thermistor detects 116: or above. (Protection will be released at 100: or below.) • Check the amount of gas and the refrigerant cycle. • Check the outdoor unit air passage. When the fin temperature thermistor detects 87: or above. • Check the outdoor unit air passage. • Check the outdoor fan motor. • Check the power module. 55 OB319--2.qxp 03.12.3 0:56 PM Page 56 Symptom: It is repeated that outdoor unit stops and restarts 3 minutes later Indication LED 1 LED 2 (Red) (Yellow) Abnormal point Detecting method 4 times Goes out P.C. board temperature overheat protection When the P.C. board temperature thermistor detects 70: or above. Check points • Check the outdoor unit air passage. • Check the outdoor fan motor. • Replace the outdoor electronic control P.C. board. When outdoor heat exchanger temperature thermistor detects 69: or 5 times Goes out High-pressure protection more. When high-pressure switch detects 4MPa or more. • Check the outdoor unit air passage. • Check the outdoor fan motor. Power factor control 8 times Goes out 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. Symptom: Outdoor unit operates (The compressor operates at reduced frequency) Indication LED 2 LED 1 (Red) (Yellow) Abnormal point Detecting method Check points When the outdoor unit input current exceeds 14.5A. Once Lighting Current protection 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. 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 Symptom: Outdoor unit operates. Indication LED 1 LED 2 (Red) (Yellow) Abnormal point Detecting method Lighting 5 times Defrost thermistor When a short or open circuit occurs in the defrost thermistor during heating. Lighting 9 times Service mode When the unit operates EMERGENCY OPERATION. 56 Check points • Check the characteristic of the defrost temperature thermistor. • Check the connector. (CN661) OB319--2.qxp 03.12.3 0:56 PM MXZ-A18WV - E1 Page 57 MXZ-A26WV - E1 Part name Defrost thermistor Evaporation/ Gas pipe/ High-pressure protect/ Outdoor heat exchanger temperature thermistor MXZ-A32WV - E1 Check method and criterion Measure the resistance using a tester. (Part temperature : -10°C ~ 40°C) Normal 5kΩ ~ 55kΩ abnormal Open or short-circuit Discharge temperature thermistor Measure the resistance using a tester, after warming up the thermistor by holding by hand. (Part temperature : 20°C ~ 40°C) Normal abnormal Opened or short-circuit 100kΩ ~ 250kΩ Fin temperature thermistor Measure the resistance using a tester. (Part temperature : 10°C ~ 40°C) Normal 25kΩ ~ 100kΩ Compressor W Measure the resistance between terminals using a tester. (Winding temperature : -10°C ~ 40°C) RED V WHT U BLK Outdoor fan motor MXZP A18WV WHT ORN RED BLK YLW Protector specification Short 87I15: Open 135I5: MXZ-A26/ A32WV RED WHT BLK abnormal Open or short-circuit U (W) V (V) W (U) Normal MXZ-A18WV MXZ-A26/A32WV 1Each phase 2.25Ω ~ 2.76Ω 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 Normal MXZ-A18WV 123.0Ω ~ 150.0Ω 30.0Ω ~ 36.0Ω 181.0Ω ~ 221.0Ω Color of lead wire RED - BLK BLK - WHT WHT - RED Normal MXZ-A26/A32WV 13.4Ω ~ 16.4Ω abnormal Open or short-circuit abnormal Open or short-circuit (Not including WHT - ORN) Measure the resistance using a tester. (Part temperature : -10°C ~ 40°C) R. V. coil Linear expansion valve WHT RED LEV ORN YLW BRN BLU Normal abnormal 2.6kΩ ~ 3.3kΩ Open or short-circuit Measure the resistance using a tester.(Part temperature : -10°C ~ 40°C) Color of lead wire WHT - RED RED - ORN YLW - BRN BRN - BLU Normal Abnormal 37.4Ω ~ 53.9Ω Open or short-circuit MXZ-A26/A32WV High pressure switch (HPS) HPS1 Pressure Operation OFF 3.7 ± 0.15MPa 4.8 +- 0.05 0.1 MPa Normal Short Open abnormal Other than those listed at left P Inner protector 57 OB319--2.qxp 03.12.3 0:56 PM Page 58 Outdoor unit does not operate. (LED display: display OFF) A Check of power supply MXZ-A18WV Start Check the connecting of parts of main power supply circuit. Turn on power supply. Is there voltage of 230V AC in the power supply terminal block? No Check the power supply cable. Yes Is there voltage of 230V AC across the input terminal part in the diode module (TAB61 and TAB62)? No Is fuse (F61) blown? No Replace the noise filter P. C. board. Yes Replace the fuse. Yes Is there voltage of 325V DC across the No smoothing capacity (C61)? Is the resistance ∞ between terminal of reactor (L) ? Yes Yes Replace the reactor. Replace the outdoor electronic control P. C. board. MXZ-A26/A32WV Start Check the connecting of parts of main power supply circuit. Turn on power supply. Is there voltage of 230V AC in the power supply terminal block? No Check the power supply cable. Yes Is the output voltage from the noise filter P.C. board 230V AC? No Is fuse (F912) blown? No Yes Yes Is the input voltage to the power board 230V AC? Replace the fuse. No Replace the reactor. Yes No Is the input voltage to the outdoor electronic control P.C. board 325V DC? Replace the power board. Yes Replace the outdoor electronic control P. C. board. 58 Replace the noise filter P. C. board. OB319--2.qxp 03.12.3 0:56 PM Page 59 Outdoor unit does not operate. (LED display: Both LED1 and LED2 lighting) B 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-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? No Replace the outdoor electronic control P. C. board. Yes Recheck a connected circumstance of the indoor/ outdoor unit connecting wire. 59 OB319--2.qxp 03.12.3 0:56 PM Page 60 The cooling operation or heating operation does not operate. (LED display: Both LED1 and LED2 lighting) C 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? 1. Turn off power supply of indoor and outdoor unit, and disconnect the connector CN851 (MXZ-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. No 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? No Is there voltage 12V DC between the connector CN851 pin 3 (+) and pin 4 (-) (MXZ-A18 WV)/ CN781 pin 5 (+) and pin 3 (-) (MXZ-A26/A32WV)? Replace the R.V. coil. Yes No Replace the electronic control P.C. board. Yes Replace the 4-way valve. Replace the noise filter P.C. board. • 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. Is there voltage of 230V AC between pin1 and pin 2 at connector CN912? No Replace the 4-way valve. Yes 1. Turn off power supply of indoor and outdoor unit, and disconnect the connector CN851 (MXZ-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 No pin 3 (+) and pin 4 (-) (MXZ-A18 Replace the noise filter P. C. board. WV)/ CN781 pin 5 (+) and pin 3 (-) (MXZ-A26/A32WV)? W W If the connector CN912 is not connected or R. V. coil is open, voltage occurs between terminals even when the control is OFF. Yes Replace the outdoor electronic control P. C. board. 60 OB319--3.qxp 03.12.3 0:58 PM Page 61 • When cooling, heat exchanger of non-operating indoor unit frosts. • When heating, non-operating indoor unit get warm. D Check of LEV LED display: LED1 Lighting 6 time LED2 Lighting Goes out Start Turn on power supply to the outdoor unit after checking LEV coil is mounted to the LEV body securely. Yes Is "click - click" sound heard? Or, do you feel vibration of the LEV coil with a hand? Normal No Disconnect the connector CN771: LEV A, CN772: LEV B (MXZ-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 Yes Replace the outdoor electronic control P. C. board. Replace the LEV coil. 61 OB319--3.qxp 03.12.3 0:58 PM Page 62 • When heating, room does not get warm. • When cooling, room does not get cool. E Check of inverter/ compressor MXZ-A18WV LED display: LED1 Lighting Lighting Twice LED2 Lighting Twice Goes out Start Disconnect the terminal of the compressor at terminals. 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 measuring the voltage. lead wire leading to the compressor. • The output voltage values have the tolerance of i20%. U (BLK) - V (WHT) V (WHT) - W (RED) No Replace the outdoor electronic W (RED) - U (BLK) control P. C. board. Output voltage COOL: 150V(58Hz), HEAT: 150V (58Hz) Is voltage output? W Yes No 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 Replace the compressor. No 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 62 OB319--3.qxp 03.12.3 0:58 PM Page 63 MXZ-A26/A32WV Start Disconnect the terminal of the compressor. 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(48Hz) HEAT: 170V(64Hz) Is voltage output? W Yes No Is output balanced? Yes W • After the outdoor fan starts running, wait for 1 minutes or more before measuring the voltage. • The output voltage values have the tolerance of i20%. No Is the input voltage to the outdoor electronic control P.C. board 370V or more? No Replace the power board. 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? No Yes Replace the compressor. Reconnect the lead wire of compressor to former, and turn on power supply to indoor and outdoor unit. 3 minutes later, starts 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 63 OB319--3.qxp 03.12.3 0:58 PM Page 64 • When thermistor is abnormal. (When the LED display is a table below.) F Check of outdoor unit thermistor MXZ-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. Abnormal Replace the thermistor. 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? No Replace the outdoor electronic control P. C. board. 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 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 Symbol RT61 RT62 RT63 RT68 RT6A RT6B RT65 MXZ-A26/A32WV 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. Abnormal Replace the thermistor. Normal 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. Does thermistor operate 10 minutes or more though the thermistor abnormality is not displayed? No Replace the outdoor electronic control P. C. board. Yes Normal 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 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 Symbol RT61 RT62 RT63 RT68 RT6A RT6B RT6C RT6D RT65 64 OB319--3.qxp 03.12.3 0:58 PM Page 65 • Fan motor does not operate or stops operating shortly after starting the operation. G Check of outdoor fan motor MXZ-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. Abnormal Replace the fan motor. 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. Yes 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? No Replace the oudtoor electronic control P. C. board. Yes 3 minutes after turning on the power supply, start EMERGENCY OPERATION. Is there voltage of 12V DC between CN851 pin3 (+) and pin6 (-)? No Yes Replace the noise filter P. C. board. MXZ-A26/A32WV Start Check the connection between the connector CN931 and CN932. Is the resistance between each terminal of outdoor fan motor normal? Yes 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(-) No (Fixed to either 5V or 0V DC) No Replace the outdoor DC fan motor. Does the voltage between each terminal become 5V DC and 0V DC repeatedly? Yes Does the outdoor fan motor rotates smoothly? Yes Replace the outdoor electronic control P.C. board. 65 OB319--3.qxp 03.12.3 0:58 PM Page 66 • When the operation frequency does not go up from lowest frequency. H Check of HPS MXZ-A26/A32WV 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 turnd off. Infinity Check the resistance between each terminal. Replace HPS. 0" Reconnect CN681 to former. Turn on power supply to the indoor and outdoor unit. 3 minutes lator, starts EMERGENCY OPERATION. Yes Is HPS protection displayed immediately after compressor starts? No Replace the electronic control P. C. board. Yes Normal I The other cases MXZ-A26/A32WV In the case that the indoor fan and outdoor fan operate but the compressor does not operate, it causes that the high pressure switch can be operated once. First of all, check the high pressure switch can be shorted, turn OFF the power and turn ON again 1 minute later. MXZ-A18/A26/A32WV Indoor unit dose not operate. (different operating models in multisystem) • 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 Flashing 66 Resistance (k') Resistance (k') ( ( ( ( ( ( ( ( ( ( ( ( ( ( Gas pipe temperature A thermistor (RT6A) CN Gas pipe temperature B thermistor (RT6B) 661 ) Defrost thermistor (RT62) Discharge temperature thermistor (RT61) CN Evaporation temperature thermistor (RT63) 662 High-pressure protect thermistor (RT68) CN772 Room B Linear expansion valve (LEV) 12V DC pulse wave ) CN663 Fin temperature thermistor (RT65) Common (+) R.V. coil (–) Rush current relay (–) CN851 Outdoor fan “High” (–) 12V DC Outdoor fan “Low” (–) Common (+) CN771 Room A Linear expansion valve (LEV) 12V DC pulse wave Common (–) Common (+) 60 67 10 Temperature (;) 80 Resistance (k') ( ( F801 FUSE 1A/250V Common (–) 160 20 10 20 30 40 50 60 70 80 0 Temperature (;) 0 100 110 120 90 80 70 60 50 40 30 20 10 LED 2 LED 1 CN601 5 ~ 10V DC Serial signal Room A CN602 5 ~ 10V DC Serial signal Room B 0 20 50 80 200 30 40 60 100 300 230V AC 50Hz Input MXZ-A18WV - E1 Outdoor electronic control P.C. board 70 120 400 90 180 600 140 500 Defrost temperature thermistor (RT62) Evaporation temperature thermistor (RT63) Gas pipe temperature thermistor (RT6A,6B) Fin temperature thermistor (RT65) High-pressure protection thermistor (RT68) Discharge temperature thermistor (RT61) 100 200 700 40 100 0 Page 67 03.12.3 0:58 PM OB319--3.qxp Temperature (;) 40 30 20 10 0 -10 0 -20 OB319--3.qxp 03.12.3 0:58 PM Page 68 Defrost temperature thermistor (RT62) Evaporation temperature thermistor (RT63) Gas pipe temperature thermistor (RT6A,6B) Fin temperature thermistor (RT65) Outdoor heat exchanger temperature thermistor (RT68) MXZ-A26WV - E1 MXZ-A32WV - E1 Outdoor electronic control P.C. board 200 Discharge temperature thermistor (RT61) 200 100 0 10 20 30 40 50 60 70 80 90 100 110 120 120 100 80 60 70 60 50 30 20 0 80 40 40 0 20 10 20 30 40 50 60 70 80 Temperature (;) 10 0 -20 -10 0 10 20 30 40 Temperature (;) LEV E CN795 12V DC pulse wave ( ( ( (–) ( (+) ( ( ( ( CN931 GND 5V 5V DC pulse wave CN932 20-90V AC CN781 (+) 12V R.V. coil (–) DC Rush current relay (–) GND (power board) To fan motor ( 15V 15V CN702 (–) Signal reception (From power board) GND 5V DC pulse wave (+) Temperature (;) 140 CN701 Signal transmission (+) (To power board) (–) 5V DC pulse wave CN661 Outdoor heat exchanger temperature thermistor (RT68) ( Evaporation temperature thermistor (RT63) ( 300 Resistance (k') 400 90 160 Resistance (k') 500 Discharge temperature thermistor (RT61) ( Defrost thermistor (RT62) ( Resistance (k') 600 0 100 180 700 LED 1 LED 2 (+) CN601 325V DC ~ 370V DC Input ( (–) (+) ( (–) CN604 Serial signal Room D 5~10V DC CN603 Serial signal Room C 5~10V DC F801 FUSE 3.15A/250V (+) (–) ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( CN791 12V DC (–) pulse wave LEV Room (+) A CN792 12V DC (–) pulse wave LEV Room (+) B CN793 12V DC (–) pulse wave LEV Room (+) C CN794 12V DC (–) pulse wave (+) LEV Room D CN681 High pressure switch CN662 Gas pipe D thermistor Gas pipe C thermistor Gas pipe B thermistor Gas pipe A thermistor 68 ( (–) ( (+) CN602 Serial signal Room B 5~10V DC CN601 Serial signal Room A 5~10V DC OB319--3.qxp 03.12.3 0:58 PM Page 69 MXZ-A18WV - E1 Noise filter P.C.board F912 FUSE 3.15A/250V NR63 VARISTOR 230V AC 50Hz Input 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 MXZ-A26WV - E1 MXZ-A32WV - E1 Noise filter P.C.board Electronic control Power board board { { { 230V AC 50Hz Input R.V. coil 230V AC { 230V AC 50Hz Output F911 FUSE 1A/250V F912 FUSE 3.15A/250V NR63 VARISTOR 69 OB319--3.qxp 03.12.3 0:58 PM Page 70 MXZ-A26WV - E1 MXZ-A32WV - E1 Outdoor Power board Connect to the compressor Voltage among phases: 5V to 180V 325-370V DC Output (Red) (+) 1 (–) 3 (White) Connect to the earth ) Signal reception (From electronic control P.C. board) 5V DC pulse wave 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 70 CN5 Primary current detection (Connect to the noise filter) OB319--3.qxp 03.12.3 0:58 PM 13 Page 71 DISASSEMBLY INSTRUCTIONS 13-1. MXZ-A18WV - E1 OUTDOOR UNIT OPERATING PROCEDURE PHOTOS 1. Removing the cabinet. Photo 1 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 Photo 2 Screws of the front panel Screws of the top panel Screw of the service panel Screws of the front panel Screws of the front panel 2. Removing the inverter assembly Screws of the front panel Photo 4 (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. Screw of the relay panel Compressor connector 71 LEV, R.V.coil and thermistor connectors Fan motor connector OB319--3.qxp 03.12.3 0:58 PM Page 72 PHOTOS OPERATING PROCEDURE 3. Removing the Outdoor Electronic control P.C. board. Photo 5 Screws of the cover (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. Screws of fan motor TAB4 Propeller Fig. 1 Propeller nut Terminal of reactor X64 Compressor connector Photo 6 Relay panel hooks Screw of heat sink Push up the connector by holding the part shown by the arrows. 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 72 Photo 7 Cable clamp OB319--3.qxp 03.12.3 0:59 PM Page 73 OPERATING PROCEDURE PHOTOS 5. Removing the thermistor Photo 8 Discharge temperature thermistor, defrost, evaporator temperature, high-pressure protect, gas pipe temperature A and 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 A and gas pipe temperature B. Fin temperature thermistor (1) Remove the top panel, service panel and front panel. (2) Remove the connector coming out of the compressor. (3) Remove the compressor connector coming out of the electronic control P.C. board. (Fig. 1) (4) Remove the electronic control P.C. board. (5) Remove the screws fixing the heat sink from the electronic control P.C. board. (Tightening torque IPM: M4 1.18 I0.2[Nm] DS: M3 0.78 I0.2[Nm] AFM: M3.5 0.98 I0.2[Nm]) Caution: Be sure to keep silicon oil applied between the heat sink and the electronic control P.C. board away from dirt etc. Do not wipe off silicon oil. Otherwise the temperature of the electronic control P.C. board may rise unusually. High-pressure protect thermistor Defrost thermistor Gas pipe temperature thermistor A, B Terminal cover Photo 9 Discharge temperature thermistor Sound proof felt Defrost thermistor Evaporator temperature thermistor Photo 10 Fin temperature thermistor Heat sink 73 OB319--3.qxp 03.12.3 0:59 PM Page 74 PHOTOS OPERATING PROCEDURE 6. Removing the compressor/4-way valve Photo 11 (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. Welded parts of compressor suction and discharge pipes 74 4-way valve welded parts OB319--3.qxp 03.12.3 0:59 PM Page 75 13-2. MXZ-A26WV - E1 OUTDOOR UNIT MXZ-A32WV - E1 OPERATING PROCEDURE PHOTOS 1. Removing the compressor Photo 1 (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 discharge pipes. (Photo 3) (11)Remove the compressor nuts and remove the compressor. Screws of the top panel Screws of service panel Screws of the front panel Photo 2 Screws of the electrical parts Electronic control P.C. board Photo 3 LEV coil Expansion valve Suction pipe welded part Discharge pipe welded part Terminal 75 OB319--3.qxp 03.12.3 0:59 PM Page 76 PHOTOS OPERATING PROCEDURE Photo 4 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. Screws of the outdoor fan motor Propeller Sound proof felt Propeller nut Separator 3. Removing the 4-way valve Compressor nuts Photo 5 (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) 4 way valve R. V. coil Welded parts 4. Removing the expansion valve Photo 6 (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. LEV coils 76 Expansion valves OB319--3.qxp 03.12.3 0:59 PM Page 77 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 77 OB319--3.qxp 14 03.12.3 0:59 PM Page 78 PARTS LIST MXZ-A18WV - E1 14-1. OUTDOOR UNIT FUNCTIONAL PARTS AND STRUCTURAL PARTS 22 20 19 18 21 16 15 14 17 13 12 11 10 9 1 2 3 5 6 4 7 8 Part numbers that are circled are not shown in the illustration. No. 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 Parts No. E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 819 737 819 214 735 065 735 737 735 735 736 735 735 735 735 735 737 737 817 636 735 819 735 069 735 521 232 009 501 301 506 900 290 661 662 493 493 640 937 961 490 245 233 009 515 630 297 933 936 936 Parts Name 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 R.V. COIL SERVICE PANEL BACK PANEL (OUT) HANDLE MOTOR SUPPORT OUTDOOR HEAT EXCHANGER TOP PANEL MUFFLER CAPILLARY TUBE CAPILLARY TUBE Symbol in Wiring Diagram MF MC B A LEV A,B 21S4 78 Q'ty/unit MXZ-A18WV1 1 1 1 1 3 1 1 2 2 1 1 2 1 1 1 1 1 1 1 1 1 2 2 2 E1 Remarks RA6V493RUBBERS/SET SNV-092FJYH [1.8O[0.6O750 [3.0O[2.0O400 [3.0O[1.8O600 OB319--3.qxp 03.12.3 0:59 PM Page 79 MXZ-A18WV - E1 14-2. OUTDOOR UNIT ELECTRICAL PARTS 14-3. ACCESSORY 9 13 7 8 14 1 3 2 4 5 6 14-2. OUTDOOR UNIT ELECTRICAL PARTS Part numbers that are circled are not shown in the illustration. No. 1 2 3 4 5 6 7 8 9 10 11 12 Parts No. E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 E02 735 735 735 573 735 735 735 735 735 735 735 737 337 444 374 375 241 382 306 308 450 309 385 382 Parts Name 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 FIN TEMPERATURE THERMISTOR FUSE&VARISTOR FUSE Symbol in Wiring Diagram L TB2 TB1 F61 RT6A,RT6B RT61,RT62,RT63,RT68 RT65 F912,NR63 F801,F911 Q'ty/unit MXZ-A18WV1 1 1 1 1 1 1 1 1 1 1 1 E1 Remarks 20A 250VAC DISCHARGE,DEFROST EVAPORATOR,HIGH-PRESSURE PROTECT 3.15A 250V 1A 250V 14-3. ACCESSORY 1 2 13 E02 817 704 DRAIN SOCKET 14 E02 444 705 DRAIN CAP 79 2PCS/SET OB319--3.qxp 03.12.3 0:59 PM Page 80 MXZ-A26WV - E1 MXZ-A32WV - E1 14-4. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS 25 24 23 22 21 19 18 20 2 14 15 17 16 1 2 5 13 6 11 7 8 9 10 3 4 80 12 OB319--3.qxp 03.12.3 0:59 PM Page 81 14-4. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. No. 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 26 27 28 29 Parts No. M21 M21 T7W M21 T92 T2W M21 T2W M21 M21 T2W M21 M21 T2W M21 R01 T2W M21 M21 M21 T2W M21 M21 M21 T2W M21 M21 R01 T2W M21 T2W M21 M21 M21 M21 T2W T2W TK0 TK0 E02 TK0 500 TK0 TK5 TK0 TK0 TK5 TK0 TK0 TK5 TK0 TK0 E39 TK0 TK0 TK0 42E TK0 TK5 TK0 TK0 TK0 20A NT1 E34 TK0 TK0 E40 TK0 TK0 SJ4 TK0 E59 E70 232 027 691 245 801 505 646 654 654 646 653 653 646 652 652 401 651 651 290 644 247 667 667 248 959 961 646 401 651 297 523 630 249 937 936 936 936 Parts Name FRONT PANLE HANDLE ASSEMBLY GRILLE SERVICE PANEL COMPRESSOR COMPRESSOR RUBBER SET EXPANSION VALVE LEV COIL EXPANSION VALVE EXPANSION VALVE LEV COIL EXPANSION VALVE EXPANSION VALVE LEV COIL EXPANSION VALVE EXPANSION VALVE LEV COIL EXPANSION VALVE BASE ASSEMBLY UNION PIPE COVER BALL VALVE 3/8 BALL VALVE 5/8 REAR PANEL POWER RECEIVER 4-WAY VALVE HIGH PRESSURE SWICH EXPANSION VALVE LEV COIL TOP PANEL REAR GUARD HEAT EXCHANGER SIDE PANEL CAPILLARY TUBE CAPILLARY TUBE SET CAPILLARY TUBE CAPILLARY TUBE Q'ty/unit Symbol in Wiring MXZ-A26WV- E1 MXZ-A32WVDiagram MC 1 2 1 1 1 3 LEV D LEV C LEV B LEV A HPS LEV E LEV E 81 1 1 1 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 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 1 1 1 1 2 4 1 1 E1 Remarks TNB220FMCH 3RUBBERS SET D room D room D room C room C room C room B room B room B room A 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 OB319--3.qxp 03.12.3 0:59 PM Page 82 MXZ-A26WV - E1 MXZ-A32WV - E1 14-5. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS 12 11 10 9 3 7 6 4 1 8 5 2 Part numbers that are circled are not shown in the illustration. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Parts No. M21 R01 T2W M21 T2W T2W R01 M21 T2W T2W T2W T2W T2W M21 T2W T2W T2W TK0 E28 TK0 GJ8 TK1 TK0 E06 TK0 E58 E65 E88 E70 TK0 TK0 E08 E66 E89 501 221 440 308 451 451 259 424 376 375 307 307 398 308 381 382 313 Parts Name PROPELLER OUTDOOR FAN MOTOR POWER BOARD FIN TEMPERATURE THERMISTOR 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 Q'ty/unit Symbol in Wiring MXZ-A26WV- E1 MXZ-A32WVDiagram MF RT65 L TB2~5 TB1 RT6A,B,C RT6A,B,C,D 21S4 RT61,62,63,68 F801 F911 F912,NR63 82 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 E1 Remarks PM8H60- 220+ 400V Indoor unit connecting Power supply DISCHARGE, DEFROST EVAPORATION, OUTDOOR HEAT EXCHANGER 3.15A 250V 1A 250V 3.15A 250V OB319--3.qxp 03.12.3 0:59 PM Page 83 MXZ-A26WV- E1 MXZ-A32WV- E1 14-6. ACCESSORY Parts No. No. 1 Q'ty/unit Symbol in Wiring MXZ-A26WV- E1 MXZ-A32WVDiagram Parts Name 1 T2W E59 704 DRAIN SOCKET ASSEMBLY 15 1 E1 Remarks DRAIN SOCKET O1 DRAIN CAP O2 1 OPTIONAL PARTS 15-1. Different-diameter pipe MXZ-A18WV Model name Connected pipes diameter (mm) Length A Length B Length C For differentdiameter pipes MAC-A454JP {9.52 — {12.7 (3/8) (1/2) {9.52 (3/8) {12.7 (1/2) 69 MXZ-A26WV MXZ-A32WV Model name Connected pipes diameter (mm) Length A Length B Length C MAC-A454JP {9.52 — {12.7 (3/8) (1/2) {9.52 (3/8) {12.7 (1/2) 69 MAC-A455JP {12.7 — {9.52 (1/2) (3/8) {12.7 (1/2) {9.52 (3/8) 65 MAC-A456JP {12.7 — {15.88 (1/2) (5/8) {12.7 (1/2) {15.88 (5/8) 66.5 For differentdiameter pipes Unit : mm (inch) A B C 15-2. Outlet guide Changes air discharge direction. 109.4 51.8 6.4 51H-855 760.8 534 MAC-855SG 83 29.2 5 - [6 Punched hole 6.4 386 760.8 832 MXZ-A26WV MAC-855SG MXZ-A32WV 150 5 - [6 Punched hole 29.2 610.4 534 386 Model name Model code 416 Applied unit OB319--3.qxp 03.12.3 0:59 PM Page 84 HEAD OFFICE: MITSUBISHI DENKI BLDG.,2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN C Copyright 2003 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD Distributed in Dec. 2003. No.OB319 7 Made in Japan New publication, effective Dec. 2003 Specifications subject to change without notice.