SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS SERVICE MANUAL Inverter-controlled multi system Models E MXZ-A8WV - E MXZ-A6WV - MXZ-AWV - E HFC utilized R40A No. OB9 Indication of model name MXZ-A8WV - E CONTENTS. TECHNICAL CHANGES. PART NAMES AND FUNCTIONS 7. INDOOR/OUTDOOR CORRESPONDENCE TABLE 7 4. INDOOR UNITS COMBINATION 0 5. SPECIFICATION 6. NOISE CRITERIA CURVES 7. OUTLINES AND DIMENSIONS 4 8. WIRING DIAGRAM 7 9. REFRIGERANT SYSTEM DIAGRAM 0 0. PERFORMANCE CURVES. MICROPROCESSOR CONTROL 47. TROUBLESHOOTING 5. DISASSEMBLY INSTRUCTIONS 7 4. PARTS LIST 78 5. OPTIONAL PARTS 8 NOTE: The description for MXZ-A8WV- E has been transferred here from service manual OB07 REVISED EDITION-A. SPECIFICATION, PERFORMANCE CURVES and PARTS LIST of MXZ-A8WV- E have been partially modified. This service manual describes technical data of outdoor units. As for indoor units, refer to the service manual OB07 REVISED EDITION-A, OB, OB7 or B9.
TECHNICAL CHANGES MXZ-8TV - E MXZ-A8WV -. Outdoor model has changed.. Refrigerant has changed. (R R40A) E MXZ-4UV - E MXZ-A6WV -. Cooling capacity has become larger. (7.kW 7.kW). Combinations of connectable indoor units have increased.. Capacity class of connectable indoor units has become larger. 4. Compressor has changed. (THV47FBA TNB0FMCH) 5. Outdoor fan motor has changed. (RA6V60-BA PM8H60-VA) 6. Refrigerant has changed. (R R40A) 7. Refrigerant system diagram has changed. High pressure switch has decreased. ( ) Accumulator has removed. Receiver has added. MXZ-SV - E MXZ-AWV -. Combinations of connectable indoor units have increased.. Capacity class of connectable indoor units has become larger.. Compressor has changed. (THV47FBA TNB0FMCH) 4. Outdoor fan motor has changed. (RA6V60-BA PM8H60-VA) 5. Refrigerant has changed. (R R40A) 6. Refrigerant system diagram has changed. High pressure switch has decreased. ( ) Accumulator has removed. Receiver has added. E E
INFORMATION FOR THE AIR CONDITIONER WITH R40A REFRIGERANT This room air conditioner adopts an HFC refrigerant (R40A) which never destroys the ozone layer. Pay particular attention to the following points, though the basic installation procedure is same as that for R conditioners. As R40A has working pressure approximate.6 times as high as that of R, some special tools and piping parts/ materials are required. Refer to the table below. Take sufficient care not to allow water and other contaminations to enter the R40A refrigerant during storage and installation, since it is more susceptible to contaminations than R. For refrigerant piping, use clean, pressure-proof parts/materials specifically designed for R40A. (Refer to. Refrigerant piping.) 4 Composition change may occur in R40A since it is a mixed refrigerant. When charging, charge liquid refrigerant to prevent composition change. Refrigerating Refrigerant oil New refrigerant Refrigerant R40A Composition (Ratio) HFC-: HFC-5 (50%:50%) Refrigerant handling Pseudo-azeotropic refrigerant Chlorine Not included Safety group (ASHRAE) A/A Molecular weight 7.6 Boiling point (:) -5.4 Steam pressure [5:](Mpa).557 Saturated steam density [5:](Kg/K) 64 Combustibility Non combustible ODP w 0 GWP w 70 Refrigerant charge method From liquid phase in cylinder Additional charge on leakage Possible Kind Incompatible oil Color Non Smell Non w :Ozone Destruction Parameter : based on CFC- w :Global Warmth Parameter : based on CO Previous refrigerant R R (00%) Single refrigerant Included A 86.5-40.8 0.94 44.4 Non combustible 0.055 700 Gas phase Possible Compatible oil Light yellow Non Compressor New Specification Current Specification The incompatible refrigerating oil easily separates from refrigerant and is in the upper layer inside the suction muffler. Raising position of the oil back hole enables to back the Since refrigerant and refrigerating oil are compatible each, refrigerating oil backs to the compressor through the lower position oil back hole. refrigerating oil of the upper layer to flow back to the compressor. Suction muffler Suction muffler Compressor Oil back hole Refrigerating oil Compressor 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). The conversion factor is: (MPa [Gauge]) =0.(kgf/f [Gauge]) 4
Conversion chart of refrigerant temperature and pressure (MPa [Gauge]) 4.0.5 R40A Saturated liquid pressure.0.5.0.5.0 0.5 R NOTE : The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is: (MPa [Gauge]) =0.(kgf/f [Gauge]) 0.0-0.5-0 -0-0 0 0 0 0 40 50 60 (:).Tools dedicated for the air conditioner with R40A refrigerant The following tools are required for R40A refrigerant. Some R tools can be substituted for R40A 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 7/6 UNF with 0 threads to / UNF with 0 threads. R40A tools Can R tools be used? Description R40A has high pressures beyond the measurement range of existing Gauge manifold No gauges. Port diameters have been changed to prevent any other refrigerant from being charged into the unit. Charge hose Gas leak detector No No Hose material and cap size have been changed to improve the pressure resistance. Dedicated for HFC refrigerant. Torque wrench Yes 6.5 mm and 9.5 mm No.7 mm and 5.88 mm Flare tool Flare gauge Yes New Clamp bar hole has been enlarged to reinforce the spring strength in the tool. Provided for flaring work (to be used with R flare tool). Vacuum pump Provided to prevent the back flow of oil. This adapter enables you to use New adapter vacuum pumps. Electronic scale for It is difficult to measure R40A with a charging cylinder because the New refrigerant charging refrigerant bubbles due to high pressure and high-speed vaporization No : Not Substitutable for R40A Yes : Substitutable for R40A.Refrigerant piping Specifications Use the refrigerant pipes that meet the following specifications. Pipe For liquid For gas Outside diameter mm 6.5/9.5 9.5.7 5.88 Wall thickness 0.8 mm/0.8 mm 0.8 mm 0.8 mm.0 mm Insulation material Heat resisting foam plastic Specific gravity 0.045 Thickness 8 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
Flaring work and flare nut Flaring work for R40A pipe differs from that for R pipe. For details of flaring work, refer to Installation manual FLARING WORK. Pipe diameter mm 6.5 9.5.7 5.88 Dimension of flare nut R40A 7 6 9 R 7 4 7.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. Indoor unit Refrigerant gas cylinder operating valve Union Liquid pipe Gas pipe Service port Stop valve Outdoor unit Gauge manifold valve (for R40A) Charge hose (for R40A) Refrigerant gas cylinder for R40A with siphon Refrigerant (liquid) Electronic scale for refrigerant charging 6
Combination of the connectable indoor units PART NAMES AND FUNCTIONS OUTDOOR UNIT MXZ-A8WV- E ACCESSORIES MXZ-A8WV- E MXZ-A6WV- E MXZ-AWV- E MXZ-A6WV- E MXZ-AWV- E Air inlet (Back and side) Air inlet (Back and side) Air outlet Air outlet Drain outlet Drain outlet Drain socket Drain cap INDOOR/ OUTDOOR CORRESPONDENCE TABLE MXZ-A8WV - E OUTDOOR UNIT MXZ-A8WV- E 07+07 07+09 07+ 09+09 09+ + There is no combination other than this table. 7
Combination of the connectable indoor units MXZ-A6WV - E OUTDOOR UNIT There is no combination other than this table. MXZ-A6WV- E 07+07 07+09 07+ 07+8 07+4 07+6 09+09 09+ 09+8 09+4 09+6 + +8 +4 +6 8+8 8+4 8+6 07+07+07 07+07+09 07+07+ 07+07+8 07+07+4 07+07+6 07+09+09 07+09+ 07+09+8 07+09+4 07+09+6 07++ 07++8 07++4 07++6 07+8+8 07+8+4 07+8+6 09+09+09 09+09+ 09+09+8 09+09+4 09+09+6 09++ 09++8 09++4 09++6 09+8+8 09+8+4 ++ ++8 ++4 ++6 +8+8 +8+4 8
Combination of the connectable indoor units Combination of the connectable indoor units MXZ-AWV - E OUTDOOR UNIT MXZ-AWV- E 07+07 07+09 07+ 07+8 07+4 07+6 09+09 09+ 09+8 09+4 09+6 + +8 +4 +6 8+8 8+4 8+6 4+4 4+6 07+07+07 07+07+09 07+07+ 07+07+8 07+07+4 07+07+6 07+09+09 07+09+ 07+09+8 07+09+4 07+09+6 07++ 07++8 07++4 07++6 07+8+8 07+8+4 07+8+6 09+09+09 09+09+ 09+09+8 09+09+4 09+09+6 09++ 09++8 09++4 09++6 09+8+8 There is no combination other than this table. OUTDOOR UNIT MXZ-AWV- E 09+8+4 ++ ++8 ++4 ++6 +8+8 +8+4 07+07+07+07 07+07+07+09 07+07+07+ 07+07+07+8 07+07+07+4 07+07+07+6 07+07+09+09 07+07+09+ 07+07+09+8 07+07+09+4 07+07+09+6 07+07++ 07+07++8 07+07++4 07+07+8+8 07+09+09+09 07+09+09+ 07+09+09+8 07+09+09+4 07+09++ 07+09++8 07+09++4 07+++ 07+++8 09+09+09+09 09+09+09+ 09+09+09+8 09+09+09+4 09+09++ 09+09++8 09+++ +++ 9
4 INDOOR UNITS COMBINATION MXZ-A8WV - E Indoor units Cooling capacity (kw) combination Unit A Unit B 07 09 07+07 07+09 07+ 09+09 09+ +..5.4...0.5..65..5.98.5..65 Total. (0.9-.95).5 (0.9-.0).4 (0.9-4.00) 4.6 (.49-5.0) 4.8 (.49-5.40) 5.0 (.5-5.60) 5.0 (.5-5.55) 5. (.5-5.80) 5.4 (.55-6.00) NOTE: Electrical data is for outdoor unit only. Outdoor unit power consumption (kw) 0.750 (0.5-.000) 0.80 (0.5-.070).80 (0.0-.450).480 (0.70-.060).600 (0.70-.070).60 (0.65-.00).780 (0.70-.05).80 (0.65-.0).860 (0.70-.0) Current (A) 0V.6.9 5.70 7.5 7.7 7.78 8.60 8.84 8. Power factor (%) 90 90 90 90 90 90 90 90 90 Indoor units Heating capacity (kw) combination Unit A Unit B 07 09 07+07 07+09 07+ 09+09 09+ +..6 4.0.05.97.6.5.78.0.05..88.5.77.0 Total. (0.9-4.0).6 (0.9-4.5) 4.0 (0.9-4.8) 6. (.5-6.70) 6. (.5-6.80) 6.5 (.55-7.00) 6.5 (.55-7.0) 6.55 (.56-7.) 6.6 (.58-7.) NOTE: Electrical data is for outdoor unit only. Outdoor unit power consumption (kw) 0.980 (0.5-.5).065 (0.5-.95).400 (0.0-.680).90 (0.00-.070).940 (0.00-.040).870 (0.95-.980).90 (0.95-.00).845 (0.95-.950).770 (0.90-.850) Current (A) 0V 4.7 5.4 6.76 9. 9.7 9.8 8.9 8.55 Power factor (%) 90 90 90 90 90 90 90 90 90 0
07 09 8 4 6 07+07 07+09 07+ 07+8 07+4 07+6 09+09 09+ 09+8 09+4 09+6 + +8 +4 +6 8+8 8+4 8+6 07+07+07 07+07+09 07+07+ 07+07+8 07+07+4 07+07+6 07+09+09 07+09+ 07+09+8 07+09+4 Indoor units combination Unit A Unit B Unit C Cooling capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) NOTE: Electrical data is for outdoor unit only. MXZ-A6WV - E..4 4.9 6. 8.48. 5.8 5.7 7.5 0.54 0.6 0.6 5.97 8.7 0.54 0.6 0.6 0. 0.50 0. 0. 0.8 0.0 0.0 8.5 8.9 0.4 0.9 0.4 0.50 9.5 0. 0.4 0.50. (.4-.0).5 (.4-.).4 (.5-4.) 5.0 (.6-5.6) 6.0 (.6-6.6) 7. (.7-7.4) 4.6 (.0-5.4) 4.8 (.0-5.8) 5.7 (.0-6.6) 7. (.0-7.7) 7. (.0-) 7. (.0-8.) 5.0 (.0-6.) 5.9 (.0-7.) 7. (.0-8.5) 7. (.0-8.5) 7. (.0-8.5) 6.8 (.0-8.5) 7. (.0-8.5) 7. (.0-8.5) 7. (.0-8.5) 7. (.-8.5) 7. (.-8.5) 7. (.-8.5) 6.9 (.9-8.) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 0.70 (0.400-0.90) 0.760 (0.400-.00).000 (0.400-.90).440 (0.40-.60).90 (0.400-.0).580 (0.40-.70).80 (0.600-.600).00 (0.600-.770).70 (0.600-.00).400 (0.560-.70).60 (0.560-.050).60 (0.560-.00).60 (0.580-.950).860 (0.580-.670).400 (0.560-.00).60 (0.560-.70).60 (0.560-.70).0 (0.580-.60).90 (0.560-.0).50 (0.560-.80).50 (0.560-.80).40 (0.590-.60).00 (0.570-.0).00 (0.570-.0).940 (0.690-.40).00 (0.690-.50).0 (0.690-.60).0 (0.700-.570).70 (0.680-.50).90 (0.680-.50).0 (0.690-.60).50 (0.690-.60).70 (0.700-.570).90 (0.680-.50)..7.6 5.8 5.57 5.67.5.7 4.8 5. 5.4.4 4. 4.8 4.9.6 4. 4.5..6.9.58..6.59..9.6..77. 4.05 4.55 4.68.59.09.8 4...5.4 5.0 6.0 7.....0.6.5.5.5.4.96.85.4.88.4.7.6.08.94..6.9.58..6.0.8.48.6
07+09+6 07++ 07++8 07++4 07++6 07+8+8 07+8+4 07+8+6 09+09+09 09+09+ 09+09+8 09+09+4 09+09+6 09++ 09++8 09++4 09++6 09+8+8 09+8+4 ++ ++8 ++4 ++6 +8+8 +8+4 Indoor units combination Unit A Unit B Unit C Cooling capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) NOTE: Electrical data is for outdoor unit only. 0.50 0. 0.9 0. 0. 0. 0.0 0.0 8.9 0. 0.4 0.50 0.50 0. 0.45 0. 0. 0. 0.0 9.8 0.0 9.9 9.9 9.84 9.75 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5) 7. (.9-8.5).90 (0.680-.50).50 (0.690-.570).0 (0.700-.540).50 (0.680-.50).50 (0.680-.50).0 (0.680-.50).00 (0.660-.490).00 (0.660-.490).00 (0.690-.650).50 (0.690-.60).70 (0.700-.570).90 (0.680-.50).90 (0.680-.50).50 (0.690-.570).80 (0.700-.540).50 (0.680-.50).50 (0.680-.50).0 (0.660-.500).00 (0.660-.500).090 (0.70-.560).80 (0.700-.50).60 (0.680-.500).60 (0.680-.500).40 (0.680-.500).0 (0.660-.470).54.79..0.9.0.64.54.6.6.8.54.47.6..9.8.88.54.4.05.8.7.7.4 4.45.79.5 4.0 4.6.0.5.67.6.89.6 4. 4.5.6..84.98.88.8.4.08.6.74.7...6.6.7..7.0 0.98.6.6.8.54.47.97.66.44.7.44.7.4.05.8.7.8.6
07 09 8 4 6 07+07 07+09 07+ 07+8 07+4 07+6 09+09 09+ 09+8 09+4 09+6 + +8 +4 +6 8+8 8+4 8+6 07+07+07 07+07+09 07+07+ 07+07+8 07+07+4 07+07+6 07+09+09 07+09+ 07+09+8 07+09+4 Indoor units combination Unit A Unit B Unit C Heating capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) NOTE: Electrical data is for outdoor unit only. 4.6 4.87 5. 9.97.86 4.4 8.87 9. 9.5 0.85.07.07 9.5 9.7.07 0.98 0.98 0.4 0.98 0.89 0.89 9.7 9.7 9.7 4 9.5 9.66 8.96 8.96 8.96 9.66 9.57 8.87 8.87. (.-4.).6 (.-4.5) 4.0 (.-4.8) 7. (.4-8.) 7.9 (.4-8.6) 8.6 (.6-9.) 6.6 (.8-7.) 6.9 (.8-8.7) 7. (.8-9.) 8.9 (.8-9.9) (.8-9.9) (.8-9.9) 7. (.8-9.) 7.6 (.8-9.5) (.8-0.) (.8-0.) (.8-0.) (.8-9.8) (.8-0.5) (.8-0.5) (.8-0.5) (.9-.0) (.9-.0) (.9-.0) 8.7 (.6-0.6) 8.8 (.6-.0) (.6-.0) (.6-.0) (.6-.0) (.6-.0) (.6-.0) (.6-.0) (.6-.0) (.6-.0).050 (0.40-.80).0 (0.40-.50).0 (0.0-.570).70 (0.0-.70).700 (0.0-.060).0 (0.60-.50).00 (0.480-.760).0 (0.480-.000).0 (0.480-.0).470 (0.460-.40).50 (0.460-.40).50 (0.460-.40).70 (0.480-.40).0 (0.480-.0).50 (0.460-.60).500 (0.460-.60).500 (0.460-.60).70 (0.480-.0).500 (0.460-.40).480 (0.460-.40).480 (0.460-.40).0 (0.440-.60).0 (0.440-.60).0 (0.440-.60).50 (0.50-.50).70 (0.50-.70).00 (0.50-.90).040 (0.50-.040).040 (0.50-.040).040 (0.50-.040).00 (0.50-.60).80 (0.50-.80).00 (0.50-.040).00 (0.50-.040)..88 4.6 6.4 6.97 7.09.6 4.4 6.0 6.55 6.69 4.0 5.4 6.0 6.6 4.5 5.4 5..9.67.4.96.65.57.4.89.8.0.9.44 4.5 5.06 5.68 5.85.4.85 4.76 5.4..6 4.0 7. 7.9 8.6..0.69.49.0.9.6.6.0.45. 4.0.6.0.84 4.5.86.68.9.67.4.96.65.57.5.5.85.57
4 07+09+6 07++ 07++8 07++4 07++6 07+8+8 07+8+4 07+8+6 09+09+09 09+09+ 09+09+8 09+09+4 09+09+6 09++ 09++8 09++4 09++6 09+8+8 09+8+4 ++ ++8 ++4 ++6 +8+8 +8+4 Indoor units combination Unit A Unit B Unit C Heating capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) NOTE: Electrical data is for outdoor unit only. 8.87 9.57 8.5 8.5 8.5 8. 8. 8. 9.5 9 8.78 8.78 8.78 9 8.4 8.4 8.4 4 4 4 8.0 8.0 8.0 7.9 7.9 (.6-.0) (.6-.0) (.7-.0) (.7-.0) (.7-.0) (.7-.0) (.7-.0) (.7-.0) (.6-.0) (.6-.0) (.6-.0) (.6-.0) (.6-.0) (.6-.0) (.7-.0) (.7-.0) (.7-.0) (.7-.0) (.7-.0) (.6-.0) (.7-.0) (.7-.0) (.7-.0) (.7-.0) (.7-.0).00 (0.50-.040).80 (0.50-.50).940 (0.50-.950).940 (0.50-.950).940 (0.50-.950).850 (0.490-.80).850 (0.490-.80).850 (0.490-.80).70 (0.50-.0).60 (0.50-.80).000 (0.50-.00).000 (0.50-.00).000 (0.50-.00).60 (0.50-.50).90 (0.50-.950).90 (0.50-.950).90 (0.50-.950).80 (0.490-.80).80 (0.490-.80).50 (0.50-.050).890 (0.50-.890).890 (0.50-.890).890 (0.50-.890).800 (0.490-.770).800 (0.490-.770).9.48.9.5.4.76..7.0.7.5.9.84.7.76.4.9.6.7.0.57.5.6.7.0 5.57.48 4.7 5.0 5..76 4.4 4.58.0.6 4.5 5.4 5..7 4.5 4.8 4.97.6 4..0.85 4.5 4.68.7 4.0.5.0.7.46.4.46.8..0.7.5.9.84.45.07.8.7.8.58.0.57.5.6.5.0
5 Indoor units combination Unit A Unit B Unit C Unit D Cooling capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) NOTE: Electrical data is for outdoor unit only. 07 09 8 4 6 07+07 07+09 07+ 07+8 07+4 07+6 09+09 09+ 09+8 09+4 09+6 + +8 +4 +6 8+8 8+4 8+6 4+4 4+6 07+07+07 07+07+09 07+07+ 07+07+8 07+07+4 07+07+6 07+09+09 07+09+ MXZ-AWV - E..4 4.9 6. 8.48. 5.8 5.7 7.5 0.89.08.4 5.97 8.7..08.4 0......0.0.8.8 8.5 8.9 0.4 0.9 0.4 0.50 9.5 0.. (.4-.0).5 (.4-.).4 (.5-4.) 5.0 (.6-5.6) 6.0 (.6-6.6) 7. (.7-7.4) 4.6 (.0-5.4) 4.8 (.0-5.8) 5.7 (.0-6.6) 7. (.0-7.7) 7.75 (.0-) 7.85 (.0-8.) 5.0 (.0-6.) 5.9 (.0-7.) 7.5 (.0-8.5) 7.75 (.0-8.6) 7.85 (.0-8.7) 6.8 (.0-8.8) 7.75 (.0-8.8) 7.85 (.0-8.8) 7.95 (.0-8.8) 7.9 (.-8.8) (.-8.8) (.-8.8) (.-8.8) (.-8.8) 6.9 (.9-8.) 7. (.9-8.6) 7.7 (.9-) 7.85 (.9-) 7.95 (.9-) (.9-) 7. (.9-8.9) 7.75 (.9-) 0.70 (0.400-0.90) 0.760 (0.400-.00).000 (0.400-.90).440 (0.40-.60).90 (0.400-.0).580 (0.40-.70).80 (0.600-.600).00 (0.600-.770).70 (0.600-.00).480 (0.560-.70).750 (0.560-.050).80 (0.560-.00).60 (0.580-.950).860 (0.580-.670).580 (0.560-.00).750 (0.560-.80).80 (0.560-.0).0 (0.580-.70).760 (0.560-.0).70 (0.560-.80).780 (0.560-.80).780 (0.590-.60).800 (0.570-.0).800 (0.570-.0).690 (0.550-.080).690 (0.550-.080).940 (0.690-.40).00 (0.690-.70).0 (0.690-.970).0 (0.700-.90).70 (0.680-.880).90 (0.680-.880).0 (0.690-.940).50 (0.690-.970)..7.6 5.5 6.0 6.9.5.7 5.0 5.64 5.84.4 4.65 5.4 5.44.95 4.57 4.7 4.0 4.6..6.07.7.46.4.6.49..77.55 4.4 5.0 5..6...5.4 5.0 6.0 7.....04.75.66.5.5.5..0.4..6.5.95.4.7 4.0.84..6.07.7.46.4.04.9
6 Indoor units combination Unit A Unit B Unit C Unit D Cooling capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) NOTE: Electrical data is for outdoor unit only. 07+09+8 07+09+4 07+09+6 07++ 07++8 07++4 07++6 07+8+8 07+8+4 07+8+6 09+09+09 09+09+ 09+09+8 09+09+4 09+09+6 09++ 09++8 09++4 09++6 09+8+8 09+8+4 ++ ++8 ++4 ++6 +8+8 +8+4 07+07+07+07 07+07+07+09 07+07+07+ 07+07+07+8 07+07+07+4 07+07+07+6 07+07+09+09 0.4 0.50 0.50 0. 0.9 0. 0. 0. 0.0 0.0 8.9 0. 0.4 0.50 0.50 0. 0.45 0. 0. 0. 0.0 0.0 0.0 9.9 9.9 9.84 9.75 9.57 9.6 9.7 4 9.5 9.5 9.6 7.9 (.9-) (.9-) (.9-) 7.85 (.9-) 7.9 (.9-) (.9-) (.9-) (.9-) (.9-) (.9-) 7. (.9-) 7.75 (.9-) 7.9 (.9-) (.9-) (.9-) 7.85 (.9-) (.9-) (.9-) (.9-) (.9-) (.9-) 7.95 (.9-) (.9-) (.9-) (.9-) (.9-) (.9-) 7.8 (.7-9.) 7.85 (.7-9.) 7.95 (.7-9.) (.7-9.) (.7-9.) (.7-9.) 7.85 (.7-9.).70 (0.700-.90).90 (0.680-.880).90 (0.680-.880).50 (0.690-.90).0 (0.700-.890).50 (0.680-.860).50 (0.680-.860).0 (0.680-.860).00 (0.660-.80).00 (0.660-.80).00 (0.690-.00).50 (0.690-.970).70 (0.700-.90).90 (0.680-.880).90 (0.680-.880).50 (0.690-.90).80 (0.700-.890).50 (0.680-.860).50 (0.680-.860).0 (0.660-.840).00 (0.660-.80).80 (0.70-.90).80 (0.700-.870).60 (0.680-.840).60 (0.680-.840).40 (0.680-.840).0 (0.660-.80).80 (0.80-.670).90 (0.80-.670).0 (0.80-.650).50 (0.790-.60).0 (0.770-.590).0 (0.770-.590).90 (0.80-.670).09.8.7.04.56...4.9.8.6..97.7.6.85.46..04..8.65.8.0.9.0.66.95.8.68.4.4.9.7 4.8 4.8 4.95.04.84 4.46 4.6.4.9 4.07.6..95 4.57 4.7.85.69 4.6 4.4..76.65.4 4.0 4.6.0.55.95.8.68.4.4.9..95.6.9.69 4.6 4.4..6.4..77.49..4..4.09.6..97.7.6.5.84.6.5.6.4.65.8.0.9.0.77.95.8.68.4.4.9.7
7 Indoor units combination Unit A Unit B Unit C Unit D Cooling capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) NOTE: Electrical data is for outdoor unit only. 07+07+09+ 07+07+09+8 07+07+09+4 07+07+09+6 07+07++ 07+07++8 07+07++4 07+07+8+8 07+09+09+09 07+09+09+ 07+09+09+8 07+09+09+4 07+09++ 07+09++8 07+09++4 07+++ 07+++8 09+09+09+09 09+09+09+ 09+09+09+8 09+09+09+4 09+09++ 09+09++8 09+++ +++ 9.7 4 9.5 9.5 9.7 9. 9. 9 0 9.7 4 9.5 9.7 9. 9. 9.66 9. 0 9.75 4 9.5 9.7 9. 9.66 9.6 7.95 (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) 7.9 (.7-9.) 7.95 (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) 7.9 (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.) (.7-9.).0 (0.80-.650).50 (0.790-.60).0 (0.770-.590).0 (0.770-.590).0 (0.80-.60).0 (0.790-.590).00 (0.770-.560).070 (0.770-.560).40 (0.80-.670).0 (0.80-.650).50 (0.790-.60).0 (0.770-.590).0 (0.80-.60).0 (0.790-.590).00 (0.770-.560).00 (0.80-.60).080 (0.790-.580).40 (0.80-.670).0 (0.80-.650).50 (0.790-.60).0 (0.770-.590).0 (0.80-.60).0 (0.790-.590).00 (0.80-.60).90 (0.80-.580).59.6.9.4.47.7...09.9.67.46.8.56.8..95.97.84.6.4.75.5..0.04.75.5.46.5.8.9.88.09.9.67.46.4.08.84..95.97.84.6.4.4.0..0.7.5 4.08 4.4.5.7.84.88.09.59.4.9.4..69..9.97.46..76.4.0..0.59.6.9.4.47.7...6.5..4.4..07..4.97.84.6.4.56.5.6.0
8 Indoor units combination Unit A Unit B Unit C Unit D Heating capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) NOTE: Electrical data is for outdoor unit only. 07 09 8 4 6 07+07 07+09 07+ 07+8 07+4 07+6 09+09 09+ 09+8 09+4 09+6 + +8 +4 +6 8+8 8+4 8+6 4+4 4+6 07+07+07 07+07+09 07+07+ 07+07+8 07+07+4 07+07+6 07+09+09 07+09+ 4.6 4.87 5. 9.97.86 4.4 8.87 9. 9.5 0.85.90.90 9.5 9.7.07.90.90 0.4.4.4.4 0.4 0.4 0.4 0.4 0.4 4 9.5 0.4 9. 9. 9. 9.5 9.97. (.-4.).6 (.-4.5) 4.0 (.-4.8) 7. (.4-8.) 7.9 (.4-8.6) 8.6 (.6-9.) 6.6 (.8-7.) 6.9 (.8-8.7) 7. (.8-9.) 8.9 (.8-9.9) (.8-9.9) (.8-9.9) 7. (.8-9.) 7.6 (.8-9.5) (.8-0.) (.8-0.) (.8-0.) (.8-9.8) (.8-0.5) (.8-0.5) (.8-0.5) (.9-.) (.9-.) (.9-.) (.9-.) (.9-.) 8.7 (.6-0.6) 8.8 (.6-.) (.6-.6) (.6-.6) (.6-.6) (.6-.6) 8.9 (.6-.6) (.6-.6).050 (0.40-.80).0 (0.40-.50).0 (0.0-.570).70 (0.0-.70).700 (0.0-.060).0 (0.60-.50).00 (0.480-.760).0 (0.480-.000).0 (0.480-.0).470 (0.460-.40).70 (0.460-.40).70 (0.460-.40).70 (0.480-.40).0 (0.480-.0).50 (0.460-.60).70 (0.460-.60).70 (0.460-.60).70 (0.480-.0).560 (0.460-.40).560 (0.460-.40).560 (0.460-.40).70 (0.440-.0).70 (0.440-.0).70 (0.440-.0).70 (0.440-.0).70 (0.440-.0).50 (0.50-.060).70 (0.50-.0).0 (0.50-.400).0 (0.50-.0).0 (0.50-.0).0 (0.50-.0).70 (0.50-.40).70 (0.50-.40)..88 4.6 6.4 7.8 7.4.6 4.4 6.0 6.84 6.98 4.0 5.64 6.7 6.4 4.7 5.7 5.55 4.7 4.89.9.67.5.05.7.64..0.9.44 4. 5.8 5.9 6.. 4.0..6 4.0 7. 7.9 8.6..0.69.49...6.6.0.56.4 4.0.76..97 4.7 4.0.85 4.7 4.5.9.67.5.05.7.64.49.5
9 Indoor units combination Unit A Unit B Unit C Unit D Heating capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) NOTE: Electrical data is for outdoor unit only. 07+09+8 07+09+4 07+09+6 07++ 07++8 07++4 07++6 07+8+8 07+8+4 07+8+6 09+09+09 09+09+ 09+09+8 09+09+4 09+09+6 09++ 09++8 09++4 09++6 09+8+8 09+8+4 ++ ++8 ++4 ++6 +8+8 +8+4 07+07+07+07 07+07+07+09 07+07+07+ 07+07+07+8 07+07+07+4 07+07+07+6 07+07+09+09 9. 9. 9. 9.7 0 0 0 8.6 8.6 8.6 9.5 9.88 9.8 9.8 9.8 9.6 8.9 8.9 8.9 8.5 8.5 9.5 8.8 8.8 8.8 8.4 8.4 8.87 8.74 8.6 8.9 8.9 8.9 8.70 (.6-.6) (.6-.6) (.6-.6) (.6-.6) (.7-.6) (.7-.6) (.7-.6) (.7-.6) (.7-.6) (.7-.6) (.6-.6) (.6-.6) (.6-.6) (.6-.6) (.6-.6) (.6-.6) (.7-.6) (.7-.6) (.7-.6) (.7-.6) (.7-.6) (.6-.6) (.7-.6) (.7-.6) (.7-.6) (.7-.6) (.7-.6) (.4-.6) (.4-.6) (.4-.6) (.5-.6) (.5-.6) (.5-.6) (.4-.6).00 (0.50-.0).00 (0.50-.0).00 (0.50-.0).0 (0.50-.400).050 (0.50-.0).050 (0.50-.0).050 (0.50-.0).960 (0.490-.00).960 (0.490-.00).960 (0.490-.00).70 (0.50-.40).50 (0.50-.40).090 (0.50-.0).090 (0.50-.0).090 (0.50-.0).90 (0.50-.400).00 (0.50-.0).00 (0.50-.0).00 (0.50-.0).940 (0.490-.00).940 (0.490-.00).70 (0.50-.80).00 (0.50-.60).00 (0.50-.60).00 (0.50-.60).90 (0.490-.00).90 (0.490-.00).00 (0.590-.40).0 (0.590-.40).960 (0.590-.90).90 (0.580-.60).90 (0.580-.60).90 (0.580-.60).980 (0.590-.400).48..0.6.04.6.5.9.45..0.8.5.0.9.4.89.5.4.76...68.5.5.5..5.9..68.46.4.05 4.97 5.64 5.8.6 4.57 5.4 5.4.9 4.6 4.79.0.76 4.7 5.7 5.55.4 4. 5.0 5..76 4.4. 4.0 4.7 4.88.5 4.7.5.9..68.46.4.64.5.8.4 4. 5.0 5..64.9.64.56..77.5.46.5.4.9.0.8.5.0.9.56.6.88.8.88.65..68.5.5.5.08.5.9..68.46.4.05
0 Indoor units combination Unit A Unit B Unit C Unit D Heating capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) NOTE: Electrical data is for outdoor unit only. 07+07+09+ 07+07+09+8 07+07+09+4 07+07+09+6 07+07++ 07+07++8 07+07++4 07+07+8+8 07+09+09+09 07+09+09+ 07+09+09+8 07+09+09+4 07+09++ 07+09++8 07+09++4 07+++ 07+++8 09+09+09+09 09+09+09+ 09+09+09+8 09+09+09+4 09+09++ 09+09++8 09+++ +++ 8.5 8.0 8.0 8.0 8.9 7. 7. 7.69 8.6 8.4 8. 8. 8.0 7.9 7.9 8.7 7.8 8.56 8.9 8.7 8.7 8. 7.8 8 8.48 (.4-.6) (.5-.6) (.5-.6) (.5-.6) (.4-.6) (.5-.6) (.5-.6) (.4-.6) (.4-.6) (.4-.6) (.5-.6) (.5-.6) (.4-.6) (.5-.6) (.5-.6) (.4-.6) (.5-.6) (.4-.6) (.4-.6) (.5-.6) (.5-.6) (.4-.6) (.5-.6) (.4-.6) (.4-.6).940 (0.590-.90).890 (0.580-.70).890 (0.580-.70).890 (0.580-.70).90 (0.590-.40).80 (0.580-.0).80 (0.580-.0).750 (0.550-.0).960 (0.590-.90).90 (0.590-.70).870 (0.580-.0).870 (0.580-.0).890 (0.590-.0).800 (0.580-.00).800 (0.580-.00).860 (0.590-.80).780 (0.580-.0).950 (0.590-.90).90 (0.590-.50).860 (0.580-.0).860 (0.580-.0).870 (0.590-.00).780 (0.580-.90).840 (0.590-.60).90 (0.590-.0).88.6.4.4.7.49...48.8.96.7..8.6.6..5.6.88.65.06.76.5.5.4.06.8.7.96.56.5.8.48.8.96.7.8.45.6.6..5.6.88.65.75.5.5.5. 4. 4.8 4.98.96.84 4.5.8.48.04.9 4.6.8.67 4..6.45.5.89.76 4.4.75.5.5.5.88.6.4.4.7.49...9.77.5.4.64.4.6.5.4.5.6.88.65.8.76.88.5
5 SPECIFICATION Capacity System Electrical data Compressor Fan motor Special remarks Outdoor model Outdoor unit power supply Indoor units number Indoor units total capacity (Connectable) indoor units total capacity (Simultaneous operation) Piping total length Connecting pipe length Height difference (Indoor ~ Outdoor) Height difference (Indoor ~ Indoor) Function Capacity [Rated (Min~Max.) Hz] 4 Dehumidification Outdoor air flow Power outlet Running current 4 Power input Auxiliary heater Crankcase heater Power factor 4 Starting current 4 Compressor motor current Fan motor current Coefficient of performance (C.O.P) Model Output Winding resistance (at 0:) Model Winding resistance (at 0:) Dimensions WOHOD Weight Sound level (High/Low w ) Fan speed (High/Low w ) Fan speed regulator Refrigerant filling capacity (R40A) Refrigerating oil (Model) Thermistor RT6 Thermistor RT6 Thermistor RT6 Thermistor RT6A,6B Thermistor RT65 Thermistor RT68 m m m m kw R/h K /h A A W A(kW) W % A A A W " " mm kg db rpm kg cc k" k" k" k" k" k" TEST CONDITIONS COOLING INDOOR DB7.0 C WB C OUTDOOR DB5.0 C WB4.0 C HEATING INDOOR DB0.0 C OUTDOOR DB 7.0 C WB 6.0 C MXZ-A8WV - E Single phase 0V,50Hz Total capacity 4 Total capacity 4 Max. 0 (chargeless 0) Max. 0 0 0 Cooling 5.4 (.55~6.0) 8.98,860 (70~,0),460 0 90.0 8.98 8.4 7.98 0.57.90.7 SNV-09FJYH (ROTARY),450 U-V.56 V-W.56 W-U.56 RA6V49-AA WHT- 9.9 -YLW 4. -RED 05. 840(+69)o640o0 5 49/44 w 50/45 w 75/60 w.75 450 (NEO).4 (at 00:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 7.0 (at 50:) 0.0 (at 5:) Heating 6.6 (.58~7.) 8.55,770 (90~,850) NOTE: Test conditions are based on ISO 55 (Refrigerant piping length (one way) :5m w Reference value Electrical data is for only outdoor unit. However, please refer to INDOOR/OUTDOOR CORRESPONDENCE TABLE of page 7 for the combination. These specifications are when all indoor units are operating. 4 Measured under rated operating frequency.
Capacity System Electrical data Compressor Fan motor Special remarks Outdoor model Outdoor unit power supply Indoor units number Indoor units total capacity (Connectable) Indoor units total capacity (Simultaneous operation) Piping total length Connecting pipe length Height difference (Indoor ~ Outdoor) Height difference (Indoor ~ Indoor) Function Capacity [Rated (Min~Max.) Hz] 4 Dehumidification Outdoor air flow Power outlet Running current 4 Power input Auxiliary heater Crankcase heater Power factor 4 Starting current 4 Compressor motor current Fan motor current Coefficient of performance(c.o.p) Model Output Winding resistance(at0:) Model Winding resistance(at0:) Dimensions WOHOD Weight Sound level (High/Low ) Fan speed (High/Low ) Fan speed regulator Refrigerant filling capacity(r40a) Refrigerating oil (Model) Thermistor RT6 Thermistor RT6 Thermistor RT6 Thermistor RT68 Thermistor RT6A Thermistor RT6B Thermistor RT6C Thermistor RT6D Thermistor RT65 m m m m kw R/h K /h A A W A(kW) W % A A A kg cc k" k" k" k" k" k" k" k" k" Cooling 7. (.9~8.5),50 9.8,090 (70~,560) 8.98.44 MXZ-A6WV - E Single phase 0V,50Hz to Total capacity 54 Total capacity 54 Max. 50 Max. 5 0 0 5.0 4 0. TNB0FMCH (ROTARY) TNB0FMCH (ROTARY) W,000,00 " U-V.4 U-V.4 V-W.4 W-U.4 V-W.4 W-U.4 PM8H60-UA PM8H60-UA " -WHT 5. -WHT 5. WHT-RED 5. RED- 5. WHT-RED 5. RED- 5. mm kg 900o900o0 (+5) 69 900o900o0 (+5) 70 w w db rpm 46/44 w 550/490 w 48/46 w 560/490 w 46/44 w 550/490 w 48/46 w 560/490 w.5 870 (NEO).4 (at 00:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 7.0 (at 50:) Heating (.6~.0),60 4,50 (50~,050) 9.4 4.9 Cooling (.7~9.),50 9.6,90 (80~,580).65 MXZ-AWV - E Single phase 0V,50Hz to 4 Total capacity 54 Total capacity 54 Max. 70 Max. 5 0 0 5.0 9.6 0..5 870 (NEO).4 (at 00:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 7.0 (at 50:) Heating (.4~.6),60 8.48,90 (590~,0) NOTE: Test conditions are based on ISO55 (Refrigerant piping length (one way): 5m) w Reference value Electrical data is for only outdoor unit. However, please refer to INDOOR/OUTDOOR CORRESPONDENCE TABLE of page 8 or 9 for the combination. These specifications are when all indoor units are operating. 4 Measured under rated operating frequency. TEST CONDITIONS COOLING INDOOR DB7.0 C WB C OUTDOOR DB5.0 C WB4.0 C HEATING INDOOR DB0.0 C OUTDOOR DB 7.0 C WB 6.0 C 8.8 4.87
6 NOISE CRITERIA CURVES MXZ-A8WV - E FAN SPEED FUNCTION High High Cooling Heating SPL(dB(A)) 49 50 LINE MXZ-A6WV - E MXZ-AWV - E FAN SPEED FUNCTION High High Cooling Heating SPL(dB(A)) 46 48 LINE 90 Test conditions. Cooling :DB 5: WB 4: Heating :DB 7: WB 6: 90 Test conditions. Cooling :DB 5: WB 4: Heating :DB 7: WB 6: OCTAVE BAND SOUND PRESSURE LEVEL, 0dB = 0.000 MICRO BAR 80 70 60 50 40 0 NC-70 NC-60 NC-50 NC-40 NC-0 OCTAVE BAND SOUND PRESSURE LEVEL, 0dB = 0.000 MICRO BAR 80 70 60 50 40 0 NC-70 NC-60 NC-50 NC-40 NC-0 0 0 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE 6 5 50 500 000 000 4000 8000 NC-0 0 0 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE 6 5 50 500 000 000 4000 8000 NC-0 BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz
7 OUTLINES AND DIMENSIONS OUTDOOR UNIT Unit: mm MXZ-A8WV - E 7 587 500 REQUIRED SPACE Open as a rule More than00mm if the front and both sides are open Drainage holes ([) 50 65 Air in 4 More than 00mm *More than 00mm 00mm or more if there are obstacles to both sides Air in 0 60 Air out 40 Open as a rule More than 00mm if the back, both sides and top are open More than 50mm 840 69 * Note: The dimensions given along the arrrows above are required to guarantee the air conditioner's performance. Install the unit in as wide a place as possible for later service or repairs. Service panel Liquid refrigerant valve (flared [6.5) 0 640 } B UNIT } A UNIT 90 65 65 65 95 Gas refrigerant valve (flared [9.5) 4
OUTDOOR UNIT Unit: mm MXZ-A6WV - E Less than 5 (Base bolt length) Rubber cushion 5 5 00 500 50 70 Air in (00) (7) (6) -U-shape notched holes (Base bolt M0) Veranda Base 900 Air in 0 74 Drainage holes -[ 0 Air out Gas pipe [9.5(flared)/8(B,C unit) [.7(flared)/(A unit) 0 40 (6) 55 87 -O6 Oval hole (Base bolt M0) Indoor and outdoor connect wiring O45 hole 88 460 50 50 80.8 5. 900 C unit connection B unit connection A unit connection.installation space 7 Liquid pipe [6.5(flared)/4 Note : Leave front and both sides clearance fully. More than 500 More than 00 Note : Leave front and overhead clearance fully. More than 00.Service space More than 00 More than 500 More than More than 00 50 More than 00 Note : Leave front, overhead and both sides clearance fully. More than 500 More than 500 More than 50 service space 5
OUTDOOR UNIT Unit: mm MXZ-AWV - E Less than 5 (Base bolt length) Rubber cushion 5 5 00 500 50 70 Air in (00) (7) (6) -U-shape notched holes (Base bolt M0) Veranda Base Air in 74 55 87 Air out Drainage holes -[ Gas pipe [9.5(flared)/8(C,D unit) [.7(flared)/(A,B unit) 40 (6) -O6 Oval hole (Base bolt M0) 900 0 0 0 Indoor and outdoor connect wiring O45 hole 88 460 50 50 480.8 5. 900 D unit connection C unit connection B unit connection A unit connection 7.Installation space Note : Leave front and both sides clearance fully. More than 500 Liquid pipe [6.5(flared)/4 More than 00 Note : Leave front and overhead clearance fully. More than 00.Service space More than 00 More than 500 More than More than 00 50 More than 00 Note : Leave front, overhead and both sides clearance fully. More than 500 More than 500 More than 50 service space 6
8 WIRING DIAGRAM MXZ-A8WV - E OUTDOOR UNIT MODEL WIRING DIAGRAM TO INDOOR UNIT No.A CONNECTING V TO INDOOR UNIT No.B CONNECTING V GRN/YLW TB N N CIRCUIT BREAKER POWER F6 SUPPLY TB TAB ~/N 0V L 50Hz N PE BLU TAB GRN LDE X6 5 YLW SYMBOL NAME AFM ACTIVE FILTER MODULE CT6 CURRENT TRANSFORMER CT76 CURRENT TRANSFORMER C6 SMOOTHING CAPACITOR C6 SMOOTHING CAPACITOR C6 SMOOTHING CAPACITOR C65 OUTDOOR FAN CAPACITOR DS6 DIODE MODULE DS6 DIODE MODULE F6 FUSE(0A) F80 FUSE(A) F9 FUSE(A) F9 FUSE(.5A) IPM POWER TRANSISTOR MODULE L REACTOR 4 WHT MF RED X6 CN9 NF C65 F9 BRN BRN F9 NR6 CT6 S4 CN9 R64A R64B SSR6 X64 TAB4 CN90 NOISE FILTER P.C.BOARD W 7 BLU TAB65 ORN BLU WHT RED RED CN60 CN60 R6 U N CT76 V W P IPM ORN BLU TAB6 ELECTRONIC CONTROL P.C.BOARD CN66 CN66 CN66 CN6 4 4 5 6 7 8 U MC CN85 V WHT RED TAB66 TAB67 TAB6 RT65 RT6A RT6B RT6 RT6 RT6 RT68 SYMBOL NAME SYMBOL NAME LEV(A) EXPANSION VALVE A,COIL R64A RESISTOR LEV(B) EXPANSION VALVE B,COIL R64B RESISTOR L6 NORMAL MODE CHOKE COIL SSR6 SOLENOID COIL RELAY MC COMPRESSOR TB TERMINAL BLOCK MF OUTDOOR FAN MOTOR TB TERMINAL BLOCK NF NOISE FILTER T80 TRANSFORMER NR6 VARISTOR X6 FAN MOTOR RELAY RT6A GAS PIPE TEMPERATURE A THERMISTOR X6 FAN MOTOR RELAY RT6B GAS PIPE TEMPERATURE B THERMISTOR X64 RELAY RT6 DISCHARGE TEMPERATURE THERMISTOR S4 R.V. COIL RT6 DEFROST THERMISTOR NOTES.About the indoor side electric wiring RT6 EVAPORATOR TEMPERATURE THERMISTOR refer to the indoor unit electric wiring RT65 FIN TEMPERATURE THERMISTOR diagram for servicing. RT68 HIGH-PRESSURE PROTECT THERMISTOR.Use copper conductors only(for field wiring)..symbols below indicate. R6 RESISTOR :Terminal block :Connector C6 F80 T80 L6 C6 C6 DS6 AFM TAB6 DS6 TAB64 CN77 CN77 6 6 L SG79J64H0 LEV (A) LEV (B) 7
MXZ-A6WV - E OUTDOOR UNIT MODEL WIRING DIAGRAM POWER BOARD V PFC NOISE FILTER P. C. BOARD L GRN/YLW MC CT X64 U R RED 4 W U CB CB CB POWER SUPPLY ~/N 0V~ 50Hz TB F9 (.5A) PE S YLW 4 WHT TAB4 R64 (50V) TAB L N/F WHT BLU N IPM V CN5 CN90 TAB NR6 N CIRCUIT BREAKER CT6 CT RED CN90 W RS RS 4 CN 5 SSR6 6 F9 (A) (50V) RS4 RS 7 CN90 4 5 TB BLU N CN9 RT65 LDE LDE CN LD9 LD LD CN4 GRN GRN GRN WHT RED S4 CN60 CN60 RED INDOOR UNIT(A) TB BLU N ORN INDOOR UNIT(B) TB4 HC9 CN80 CN70 F80 (.5A) (50V) T80 4 5 6 7 CN70 4 5 CN78 BLU N CN60 YLW INDOOR UNIT(C) TO INDOOR UNIT CONNECTING V CN9 8 WHT RED R94A ELECTRONIC CONTROL P. C. BOARD MF YLW BLU ORN PNK GRY R94B CN795 4 5 6 8 CN66 4 5 6 7 8 7 CN66 4 5 6 CN68 6 5 (WHT) (RED) (BLU) CN79 CN79 CN79 4 5 6 4 5 6 4 4 5 GRY GRY GRY GRY GRY GRY CN9 WHT YLW ORN BLU BRN RED GRY GRY GRY GRY GRY GRY RED RED RED BRN BLU ORN YLW WHT WHT YLW ORN BLU BRN RED WHT YLW ORN BLU BRN RED LEV E HPS RT6A RT6C RT6 RT6 LEV A LEV B LEV C RT6B RT6 RT68.About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing..use copper conductors only (for field wiring)..symbols below indicate. :Terminal block :Connector NOTES: SYMBOL NAME RT6 DEFROST THERMISTOR RT6 EVAPORATION TEMPERATURE THERMISTOR RT65 FIN TEMPERATURE THERMISTOR SYMBOL NAME LEV E EXPANSION VALVE OUTDOOR FAN MOTOR (INNER FUSE) MC COMPRESSOR MF OUTDOOR HEAT EXCHANGER TEMPERATURE THERMISTOR RT68 SYMBOL NAME CB~ SMOOTHING CAPACITOR CT, CURRENT TRANSFORMER CT6 CURRENT TRANSFORMER F80 FUSE (.5A) (50V) SOLENOID COIL RELAY NOISE FILTER POWER FACTOR CONTROLLER FUSE (A) (50V) FUSE (.5A) (50V) SG79Y7H0 T80 TRANSFORMER SSR6 NR6 VARISTOR N/F PFC R64 RESISTOR F9 F9 HC9 FET ARRAY TB~4 TERMINAL BLOCK X64 RELAY S4 R.V. COIL R94A, B RESISTOR RS~4 RESISTOR RT6A~C GAS PIPE TEMPERATURE THERMISTOR RT6 DISCHARGE TEMPERATURE THERMISTOR HPS HIGH PRESSURE SWITCH IPM POWER TRANSISTOR MODULE L REACTOR LEV A~C EXPANSION VALVE
MXZ-AWV - E OUTDOOR UNIT MODEL WIRING DIAGRAM POWER BOARD V PFC NOISE FILTER P. C. BOARD L MC CT X64 4 W U R RED U CB CB CB F9 (.5A) S YLW 4 WHT TAB4 R64 (50V) TAB N/F WHT IPM V TAB CN5 CN90 NR6 N CT6 CT RED 4 CN CN90 W RS RS SSR6 765 F9 (A) (50V) RS4 RS CN90 5 4 CN9 LDE LDE RT65 CN LD9 LD LD CN4 GRN GRN GRN WHT RED S4 CN80 6 7 HC9 CN70 4 5 CN70 5 4 F80 (.5A) CN78 CN9 (50V) WHT RED T80 MF YLW BLU ORN PNK GRY 5 4 R94A ELECTRONIC CONTROL P. C. BOARD R94B (GRN) (BLU) (RED) 6 5 CN795 4 CN66 4 5 6 7 8 CN66 4 5 6 7 8 CN68 CN794 4 5 6 CN79 4 5 6 CN79 4 5 6 RED BRN BLU ORN YLW WHT GRY GRY GRY GRY GRY GRY GRY GRY GRY GRY GRY GRY GRY GRY RED RED WHT YLW ORN BLU BRN RED WHT YLW ORN BLU BRN RED RED BRN BLU ORN YLW WHT CN9 HPS RT6A RT6C RT6 RT6 LEV B LEV C LEV D RT6B RT6D RT6 RT68 LEV E.About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing..use copper conductors only (for field wiring)..symbols below indicate. :Terminal block :Connector NOTES: SYMBOL NAME RT6 DEFROST THERMISTOR RT6 EVAPORATION TEMPERATURE THERMISTOR RT65 FIN TEMPERATURE THERMISTOR SYMBOL NAME LEV E EXPANSION VALVE OUTDOOR FAN MOTOR (INNER FUSE) MC COMPRESSOR MF OUTDOOR HEAT EXCHANGER TEMPERATURE THERMISTOR RT68 SOLENOID COIL RELAY SG79Y70H0 T80 TRANSFORMER SSR6 NOISE FILTER POWER FACTOR CONTROLLER NR6 VARISTOR N/F PFC R64 RESISTOR TB~5 TERMINAL BLOCK X64 RELAY S4 R.V. COIL R94A, B RESISTOR RS~4 RESISTOR RT6A~D GAS PIPE TEMPERATURE THERMISTOR RT6 DISCHARGE TEMPERATURE THERMISTOR GRN/YLW POWER SUPPLY ~/N 0V~ 50Hz TB PE L BLU N CIRCUIT BREAKER BLU RED TB N CN60 INDOOR UNIT(A) BLU TB N CN60 ORN INDOOR UNIT(B) CN60 BLU TB4 N YLW INDOOR UNIT(C) 9 N TB5 BLU BRN INDOOR UNIT(D) TO INDOOR UNIT CONNECTING V CN604 (WHT) CN79 4 5 6 RED BRN BLU ORN YLW WHT LEV A SYMBOL NAME CB~ SMOOTHING CAPACITOR CT, CURRENT TRANSFORMER CT6 CURRENT TRANSFORMER F80 FUSE (.5A) (50V) FUSE (A) (50V) FUSE (.5A) (50V) F9 F9 HC9 FET ARRAY HPS HIGH PRESSURE SWITCH IPM POWER TRANSISTOR MODULE L REACTOR LEV A~D EXPANSION VALVE
9 REFRIGERANT SYSTEM DIAGRAM MXZ-A8WV - E Unit:mm R.V. coil heating ON cooling OFF Refrigerant flow in cooling Refrigerant flow in heating Discharge temperature thermistor RT6 Muffler Compressor {8 Indoor Unit B Stop valve (with service port) Gas pipe temperature B thermistor Muffler 4-way valve { { Indoor Unit A Gas pipe temperature A thermistor Stop valve (with service port) Capillary tube {.8 {0.6 750 Evaporation temperature thermistor RT6 High-pressure protect thermistor RT68 Indoor Unit A Indoor Unit B Stop valve Stop valve {6 Strainer #00 {6 Strainer #00 Capillary tube {.0 {.0 400 Capillary tube {.0 {.0 400 LEV (A) LEV (B) Strainer Outdoor heat exchanger Defrost thermistor RT6 Capillary tube {.0 {.8 600 MAX REFRIGERANT PIPING LENGTH Piping length each indoor unit (a, b) 0m Total piping length (a+b) 0m Height difference between units (H) 0m Bending point for each unit 5 Total bending point 0 It does not matter which unit is higher. Indoor units a Outdoor unit H Outdoor unit precharged Refrigerant piping length (one way, unit total) 0m 5m 0m H,750 0 00 00 Calculation : Xg=0g/mx(Refrigerant piping length(m)-0) 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 Outdoor unit union diameter Extension pipe diameter class Pipe diameter For Liquid 6.5(/4) Liquid 6.5(/4) Liquid 6.5(/4) 07/09 Indoor unit A Gas 9.5(/8) Gas 9.5(/8) Gas 9.5(/8) Liquid 6.5(/4) Liquid 6.5(/4) Liquid 6.5(/4) Indoor unit B Gas.7(/) Gas.7(/) Gas 9.5(/8) b H 0
MXZ-A6WV - E R.V. coil heating ON cooling OFF Indoor unit C Indoor unit B Indoor unit A Unit C gas pipe temperature thermistor Refrigerant flow in cooling Refrigerant flow in heating Unit B gas pipe temperature thermistor [9.5 Unit A gas pipe temperature thermistor [.7 Indoor unit A Indoor unit B Indoor unit C [9.5 Capillary tube [4.0 [.8 90 Strainer [6.5 LEV A #00 Capillary tube [4.0 [.8 90 Strainer #00 Capillary tube [4.0 [.8 90 Strainer #00 [6.5 LEV B [6.5 LEV C Compressor High-pressure Discharge switch temperature thermistor RT6 Oil separator Ball valve with service port [6 MAX REFRIGERANT PIPING LENGTH Muffler Evaporation temperature thermistor RT6 Ball valve with service port Distributor Piping length each indoor unit (a, b, c) 5m Total piping length (a+b+c) 50m Height difference between units (H) 0m Bending point for each unit 5 Total bending point 50 It does not matter which unit is higher. Outdoor unit precharged,500 Refrigerant piping length (one way, unit total) 40m 0 45m 00 50m 00 Capillary tube [.5 [0.6 000 4-way valve [6 Indoor units Receiver [6 Capillary tube [.0 [0.6 750 c LEV E [6 [6 Strainer #00 a b [9.5 [6 Service port Outdoor unit Unit:mm Outdoor heat exchanger Outdoor heat exchanger temperature thermistor RT68 Defrost thermistor RT6 Capillary tube [4.0 [.4 400 Distributor H H H Calculation : Xg=0g/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 Outdoor unit union diameter Extension pipe diameter class Pipe diameter For Liquid 6.5(/4) Liquid 6.5(/4) Liquid 6.5(/4) 07/09 Indoor unit A Gas 9.5(/8) Gas 9.5(/8) Gas.7(/) Liquid 6.5(/4) Liquid 6.5(/4) Liquid 6.5(/4) Indoor unit B Gas 9.5(/8) or.7(/) Gas.7(/) Gas 9.5(/8) Liquid 6.5(/4) Liquid 6.5(/4) Liquid 6.5(/4) 8 Indoor unit C Gas.7(/) Gas.7(/) Gas 9.5(/8) Liquid 6.5(/4) Liquid 6.5(/4) 4 Gas 5.88(5/8) Gas 5.88(5/8) Liquid 9.5(/8) Liquid 9.5(/8) 6 Gas 5.88(5/8) Gas 5.88(5/8)
MXZ-AWV - E R.V. coil heating ON cooling OFF Indoor unit D Indoor unit C Indoor unit B Indoor unit A Unit D gas pipe temperature thermistor Unit C gas pipe temperature thermistor Unit B gas pipe temperature thermistor [.7 Unit A gas pipe temperature thermistor [.7 Piping length each indoor unit (a, b, c, d) 5m Total piping length (a+b+c+d) 70m Height difference between units (H) 0m Bending point for each unit 5 Total bending point 70 It does not matter which unit is higher. Outdoor unit Refrigerant piping length (one way, 4 unit total) precharged 40m 50m 60m 70m,500 Indoor unit A Indoor unit B Indoor unit C Indoor unit D Refrigerant flow in cooling Refrigerant flow in heating 0 Strainer #00 Strainer #00 Strainer #00 Strainer #00 [9.5 [6.5 LEV A [6.5 LEV B [6.5 LEV C [6.5 LEV D 00 [9.5 High-pressure switch Ball valve with service port [6 Capillary tube [4.0 [.8 90 MAX REFRIGERANT PIPING LENGTH 400 Oil separator Muffler Ball valve with service port Distributor Compressor Evaporation temperature thermistor RT6 Discharge temperature thermistor RT6 Capillary tube [.5 [0.6 000 600 4-way valve [6 Receiver Indoor units LEV E c d [6 Capillary tube [.0 [0.6 750 a b [6 [6 Strainer #00 [9.5 [6 Service port Outdoor unit Unit:mm Outdoor heat exchanger Outdoor heat exchanger temperature thermistor RT68 Defrost thermistor RT6 Capillary tube [4.0 [.4 400 Distributor H H H Calculation : Xg=0g/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 Outdoor unit union diameter Extension pipe diameter class Pipe diameter For Liquid 6.5(/4) Liquid 6.5(/4) Liquid 6.5(/4) 07/09 Indoor unit A Gas 9.5(/8) Gas 9.5(/8) Gas.7(/) Liquid 6.5(/4) Liquid 6.5(/4) Liquid 6.5(/4) Indoor unit B Gas 9.5(/8) or.7(/) Gas.7(/) Gas.7(/) Liquid 6.5(/4) Liquid 6.5(/4) Liquid 6.5(/4) 8 Indoor unit C Gas.7(/) Gas.7(/) Gas 9.5(/8) Liquid 6.5(/4) Liquid 6.5(/4) Liquid 6.5(/4) 4 Indoor unit D Gas 5.88(5/8) Gas 5.88(5/8) Gas 9.5(/8) Liquid 9.5(/8) Liquid 9.5(/8) 6 Gas 5.88(5/8) Gas 5.88(5/8)
0 PERFORMANCE CURVES MXZ-A8WV- E MXZ-A6WV- E MXZ-AWV- E 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. () GUARANTEED VOLTAGE 98~64V () AIR FLOW Air flow should be set at MAX. () MAIN READINGS () Indoor intake air wet-bulb temperature : CWB () Indoor outlet air wet-bulb temperature : CWB () Outdoor intake air dry-bulb temperature : CDB (4) Total input: W (5) Indoor intake air dry-bulb temperature : CDB (6) Outdoor intake air wet-bulb temperature : CWB (7) Total input : W Indoor air wet/dry-bulb temperature difference on the left side of the chart on page 4 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. Attach at least sets of wet-and dry-bulb thermometers to the indoor air intake as shown in the figure, and at least 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 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. 4. Open windows and doors of room. 5. Press the EMERGENCY OPERATION switch once(twice) to start the EMERGENCY COOL (HEAT) MODE. 6. When system stabilizes after more than 5 minutes, measure temperature and take an average temperature. 7. 0 minutes later, measure temperature again and check that the temperature does not change. } } Cooling Heating INDOOR UNIT OUTDOOR UNIT Wet-and dry-bulb thermometers Wet-and dry-bulb thermometers
0-. Capacity and the input curves MXZ-A8WV- E 8.5 7.8 7. 6.4 5.8 5. 9. 0.6 8.5 9.7 7.8 8.8 7.0 7.9 6. 7. 5.6 6. 07 class 09 class class 5.4.4.5 9.5 7.6 5.6.7.7 4.0 5.9..9 0..9 8.5 9.9 6.6 7.9 4.8 5.9.9.9..0 07 class 09 class class MXZ-A6WV- E MXZ-AWV- E 8.5 9. 0.6..7 7.0 7.8 8.5 9.7.9.4 5.4 7. 7.8 8.8 0.8..9 6.4 7.0 7.9 9.7 0..5 5.8 6. 7. 8.7. 5. 5.6 6. 7.7 9.7 07 class 09 class class 8 class 4 class 6 class 5.4 4.0 5.9.4.9 5..4..9.4.5 0..9 6.6 7.0 9.7 9.5 8.5 9.9 4. 4.5 7.0 7.6 6.6 7.9.7. 4. 5.6 4.8 5.9 9. 9.6.6.7.9.9 6.9 7. 8.9.7..0 4.5 4.7 6. 07 class 09 class class 8 class 4 class 6 class 4
0-. Capacity and input correction by inverter output frequency (OUTDOOR UNIT : MXZ-A8WV). 07-class unit in single operation <COOL>Capacity.5.5 <COOL>Total input.5 <HEAT>Capacity.5 <HEAT>Total input.0.0.0.0 0.5 0.5 0.5 0.5 Hz 0 50 00 50 0 50 00 50 Hz Frequency Frequency. 09-class unit in single operation <COOL>Capacity <COOL>Total input.5.5 0 50 00 50 Hz Hz 0 50 00 50 Frequency Frequency <HEAT>Capacity <HEAT>Total input.5.5.0.0.0.0 0.5 0.5 0.5 0.5 Hz Hz 0 50 00 50 0 50 00 50 0 50 00 50 Hz 0 50 00 50 Hz Frequency Frequency Frequency Frequency. -class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input.5.5.5.5.0.0.0.0 0.5 0.5 0.5 0.5 0 50 00 50 Hz Frequency 0 50 00 50 Hz Frequency 0 50 00 50 Hz Frequency 0 50 00 50 Hz Frequency 5
(OUTDOOR UNIT:MXZ-A6WV, MXZ-AWV). 07-class unit in single operation <COOL>Capacity.5.5 <COOL>Total input.5 <HEAT>Capacity.5 <HEAT>Total input.0.0.0.0 0.5 0.5 0.5 0.5 0 50 00 50 Hz 0 50 00 50 Hz 0 50 00 50 Hz Frequency Frequency Frequency. 09-class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity.5.5.5 0 50 00 50 Hz Frequency <HEAT>Total input.5.0.0.0.0 0.5 0.5 0.5 0.5 0 50 00 50 Hz 0 50 00 50 Hz 0 50 00 50 Hz 0 50 00 50 Hz Frequency Frequency Frequency Frequency. -class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input.5.5.5.5.0.0.0.0 0.5 0.5 0.5 0.5 0 50 00 50 Hz 0 50 00 50 Hz 0 50 00 50 Hz 0 50 00 50 Hz Frequency Frequency Frequency Frequency 4. 8-class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input.5.5.5.5.0.0.0.0 0.5 0.5 0.5 0.5 0 50 00 50 Hz 0 50 00 50 Hz 0 50 00 50 Hz 0 50 00 50 Hz Frequency Frequency Frequency Frequency 5. 4-class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input.5.5.5.5.0.0.0.0 0.5 0.5 0.5 0.5 0 50 00 50 Hz 0 50 00 50 Hz 0 50 00 50 Hz 0 50 00 50 Hz Frequency Frequency Frequency Frequency 6
6. 6-class unit in single operation <COOL>Capacity.5.5 <COOL>Total input.5 <HEAT>Capacity.5 <HEAT>Total input.0.0.0.0 0.5 0.5 0.5 0.5 0 50 00 50 Hz 0 50 00 50 Hz 0 50 00 50 Hz Frequency Frequency Frequency 0 50 00 50 Hz Frequency 7
0-. Outdoor low pressure and outdoor unit current. 07-class unit in single operation (OUTDOOR UNIT : MXZ-A8WV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is : (MPa[Gauge]) =0.(kgf/f[Gauge]) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature( C) Relative humidity(%) 0 50 5 60 0 70 Air flow speed : High Inverter output frequency : Hz (kgf/f[gauge])(mpa[gauge]) 5.5 4.4.. Outdoor low pressure 0 9 8 7 6 5 () HEAT operation Indoor..0 0.9 0.8 0.7 0.6 0.5 5 0 5 0 50 60 70 DB( C) 0.0 WB( C) 4.5 Outdoor ➁ Set air flow to High speed. ➂ Inverter output frequency is 45Hz. Hz 5 Ambient temperature(:)/ Ambient humidity(%) DB( C) 7 5 0.0 WB( C) 6 4.5 <How to work fixed-frequency operation>.set emergency switch to COOL or HEAT. The switch is located on indoor unit..press emergency operation button..compressor starts running at rated frequency. 4.Indoor fan runs at High speed and continues for 0 minutes. 5.To cancel this operation, press emergency operation button or any button on remote controller. (:) (%) Outdoor unit current (A) 5 4 5 0 5 0 50 60 70 8 Hz 5 (:) (%) Ambient temperature(:)/ Ambient humidity(%) Outdoor unit current (A) 7 6 5 4 45Hz 5 0 5 0 5 Ambient temperature(:) 8
. 09-class unit in single operation (OUTDOOR UNIT : MXZ-A8WV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is : (MPa[Gauge]) =0.(kgf/f[Gauge]) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature( C) Relative humidity(%) 0 50 5 60 0 70 Air flow speed : High Inverter output frequency : Hz <How to work fixed-frequency operation>.set emergency switch to COOL or HEAT. The switch is located on indoor unit..press emergency run ON/OFF button..compressor starts running at rated frequency. 4.Indoor fan runs at High speed and continues for 0 minutes. 5.To cancel this operation, press emergency operation button or any button on remote controller. (kgf/f[gauge])(mpa[gauge]) 5.5 4.4.. Outdoor low pressure 0 9 8 7 6 5 () HEAT operation Indoor..0 0.9 0.8 0.7 0.6 0.5 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) DB( C) 0.0 WB( C) 4.5 Outdoor ➁ Set air flow to High speed. ➂ Inverter output frequency is 45Hz. Hz Outdoor unit current (A) DB( C) 7 5 0.0 WB( C) 6 4.5 5 4 5 0 5 0 5 (:) 50 60 70 (%) 8 Hz Ambient temperature(:)/ Ambient humidity(%) Outdoor unit current (A) 7 6 5 4 45Hz 5 0 5 0 5 Ambient temperature(:) 9
. -class unit in single operation (OUTDOOR UNIT : MXZ-A8WV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is : (MPa[Gauge]) =0.(kgf/f[Gauge]) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature( C) Relative humidity(%) 0 50 5 60 0 70 Air flow speed : High Inverter output frequency : Hz (kgf/f[gauge])(mpa[gauge]) 5.5 4.4.. Outdoor low pressure 0 9 8 7 6 5 () HEAT operation Indoor..0 0.9 0.8 0.7 0.6 0.5 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) DB( C) 0.0 WB( C) 4.5 Outdoor ➁ Set air flow to High speed. ➂ Inverter output frequency is 45Hz. Hz <How to work fixed-frequency operation>.set emergency switch to COOL or HEAT. The switch is located on indoor unit..press emergency operation button..compressor starts running at rated frequency. 4.Indoor fan runs at HI speed and continues for 0 minutes. 5.To cancel this operation, press emergency operation button or any button on remote controller. Outdoor unit current (A) DB( C) 7 5 0.0 WB( C) 6 4.5 5 4 5 0 5 0 5 (:) 50 60 70 (%) 8 Hz Ambient temperature(:)/ Ambient humidity(%) Outdoor unit current (A) 7 6 5 4 45Hz 5 0 5 0 5 Ambient temperature(:) 40
4. 07-class unit in single operation (OUTDOOR UNIT : MXZ-A6WV, MXZ-AWV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is : (MPa[Gauge]) =0.(kgf/f[Gauge]) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature( C) Relative humidity(%) 0 50 5 60 0 70 Air flow speed : High Inverter output frequency : 4Hz <How to work fixed-frequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency operation button..compressor starts running at rated frequency. 4.Indoor fan runs at High speed and continues for 0 minutes. 5.To cancel this operation,press emergency operation button or any button on remote controller. (kgf/f[gauge])(mpa[gauge]). Outdoor low pressure. 0.0 9 0.9 8 0.8 7 0.7 4Hz Outdoor unit current (A) 5 4 4Hz () HEAT operation Indoor 6 0.6 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) DB( C) 0.0 WB( C) 4.5 Outdoor ➁ Set air flow to High speed. ➂ Inverter output frequency is Hz. DB( C) 7 5 0.0 WB( C) 6 4.5 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) 7 Outdoor unit current (A) 6 5 4 Hz 5 0 5 0 5 Ambient temperature(:) 4
5. 09-class unit in single operation (OUTDOOR UNIT : MXZ-A6WV, MXZ-AWV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is : (MPa[Gauge]) =0.(kgf/f[Gauge]) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature( C) Relative humidity(%) 0 50 5 60 0 70 Air flow speed : High Inverter output frequency : 4Hz <How to work fixed-frequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency operation button..compressor starts running at rated frequency. 4.Indoor fan runs at High speed and continues for 0 minutes. 5.To cancel this operation,press emergency operation button or any button on remote controller. (kgf/f[gauge])(mpa[gauge]). Outdoor low pressure. 0.0 9 0.9 8 0.8 7 0.7 4Hz Outdoor unit current (A) 5 4 4Hz () HEAT operation Indoor 6 0.6 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) DB( C) 0.0 WB( C) 4.5 Outdoor ➁ Set air flow to High speed. ➂ Inverter output frequency is Hz. DB( C) 7 5 0.0 WB( C) 6 4.5 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) 7 Outdoor unit current (A) 6 5 4 Hz 5 0 5 0 5 Ambient temperature(:) 4
6. -class unit in single operation (OUTDOOR UNIT : MXZ-A6WV, MXZ-AWV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is : (MPa[Gauge]) =0.(kgf/f[Gauge]) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature( C) Relative humidity(%) 0 50 5 60 0 70 Air flow speed : High Inverter output frequency : 4Hz (kgf/f[gauge])(mpa[gauge]). Outdoor low pressure () HEAT operation Indoor 0 9 8 7...0 0.9 0.8 0.7 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) DB( C) 0.0 WB( C) 4.5 Outdoor ➁ Set air flow to High speed. ➂ Inverter output frequency is Hz. 4Hz <How to work fixed-frequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency operation button..compressor starts running at rated frequency. 4.Indoor fan runs at High speed and continues for 0 minutes. 5.To cancel this operation,press emergency operation button or any button on remote controller. Outdoor unit current (A) DB( C) 7 5 0.0 WB( C) 6 4.5 5 4 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) 7 4Hz Outdoor unit current (A) 6 5 4 Hz 5 0 5 0 5 Ambient temperature(:) 4
7. 8-class unit in single operation (OUTDOOR UNIT : MXZ-A6WV, MXZ-AWV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is : (MPa[Gauge]) =0.(kgf/f[Gauge]) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature( C) Relative humidity(%) 0 50 5 60 0 70 ➁ Air flow speed : High ➂ Inverter output frequency : 4Hz <How to work fixed-frequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency operation button..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]). 4Hz 5 Outdoor low pressure 0 9 8...0 0.9 0.8 Outdoor unit current (A) 4 4Hz () HEAT operation Indoor 7 0.7 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) DB( C) 0.0 WB( C) 4.5 Outdoor ➁ Set air flow to High speed. ➂ Inverter output frequency is Hz. DB( C) 7 5 0.0 WB( C) 6 4.5 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) 7 Outdoor unit current (A) 6 5 4 Hz 5 0 5 0 5 Ambient temperature(:) 44
8. 4-class unit in single operation (OUTDOOR UNIT : MXZ-A6WV, MXZ-AWV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is : (MPa[Gauge]) =0.(kgf/f[Gauge]) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature( C) Relative humidity(%) 0 50 5 60 0 70 ➁ Air flow speed : High ➂ Inverter output frequency : 4Hz <How to work fixed-frequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency operation button..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]).4 4 Outdoor low pressure... 0.0 9 0.9 4Hz Outdoor unit current (A) 5 4 4Hz () HEAT operation Indoor 8 0.8 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) DB( C) 0.0 WB( C) 4.5 Outdoor ➁ Set air flow to High speed. ➂ Inverter output frequency is Hz. DB( C) 7 5 0.0 WB( C) 6 4.5 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) 7 Outdoor unit current (A) 6 5 4 Hz 5 0 5 0 5 Ambient temperature(:) 45
9. 6-class unit in single operation (OUTDOOR UNIT : MXZ-A6WV, MXZ-AWV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is : (MPa[Gauge]) =0.(kgf/f[Gauge]) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Dry-bulb temperature( C) Relative humidity(%) 0 50 5 60 0 70 ➁ Air flow speed : High ➂ Inverter output frequency : 4Hz <How to work fixed-frequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency operation button..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]).4 4 Outdoor low pressure... 0.0 9 0.9 4Hz Outdoor unit current (A) 5 4 4Hz () HEAT operation Indoor 8 0.8 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) DB( C) 0.0 WB( C) 4.5 Outdoor ➁ Set air flow to High speed. ➂ Inverter output frequency is Hz. DB( C) 7 5 0.0 WB( C) 6 4.5 5 0 5 0 5 (:) 50 60 70 (%) Ambient temperature(:)/ Ambient humidity(%) 7 Outdoor unit current (A) 6 5 4 Hz 5 0 5 0 5 Ambient temperature(:) 46
MICROPROCESSOR CONTROL -. INVERTER MULTI SYSTEM CONTROL MXZ-A8WV - E Output signal Input signal Indoor unit microprocessor Compressor power factor Compressor primary current Compressor secondary current Outdoor unit control microprocessor SSR6 Drive circuit Transistor module Fin temperature thermistor RT65 Comp. Discharge temperature thermistor RT6 x 6 x 6 Indoor Unit B Indoor Unit A Gas pipe temperature thermistor RT6B Gas pipe temperature thermistor RT6A R. V. coil S4 Evaporation temperature thermistor RT6 High-pressure protect thermistor RT68 Outdoor fan motor MF Indoor Unit A LEV (A) Defrost thermistor RT6 Indoor Unit B LEV (B) 47
MXZ-A6WV - E Output signal Input signal Indoor unit microprocessor Outdoor unit control microprocessor SSR6 Fan motor drive microprocessor Compressor primary current IPM/PFC Drive microprocessor Drive circuit Transistor module Drive circuit PFC module Fin temperature thermistor RT65 Compressor secondary current Transistor module High-pressure switch 6H Comp. Discharge temperature thermistor RT6 Indoor Unit C Indoor Unit B Indoor Unit A Gas pipe temperature thermistor RT6A, B, C Muffler R. V. coil S4 Evaporation temperature thermistor RT6 Outdoor heat exchanger temperature thermistor RT68 Outdoor fan motor MF Indoor Unit A Indoor Unit B Indoor Unit C LEV A LEV B LEV C LEV E Defrost thermistor RT6 48
MXZ-AWV - E Output signal Input signal Indoor unit microprocessor Outdoor unit control microprocessor SSR6 Fan motor drive microprocessor Compressor primary current IPM/PFC Drive microprocessor Drive circuit PFC module Transistor module Fin temperature thermistor RT65 Compressor secondary current Drive circuit Transistor module Indoor Unit D Indoor Unit C Indoor Unit B Indoor Unit A High-pressure switch 6H Gas pipe temperature thermistor RT6A, B, C, D Comp. Discharge temperature thermistor RT6 R. V. coil S4 Evaporation temperature thermistor RT6 Outdoor heat exchanger temperature thermistor RT68 Outdoor fan motor MF Indoor Unit A Indoor Unit B Indoor Unit C Indoor Unit D LEV A LEV B LEV C LEV D LEV E Defrost thermistor RT6 49
-.Heat defrosting control () Conditions to enter defrosting mode. When temperature of defrosting thermistor is -; or less..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 and. () Defrosting operation. Compressor stops for 50 seconds, Indoor fan is off, Defrosting lamp lights..4-way valve reverses flow, Compressor operates by the frequency in heat defrosting control.. After compressor stops for 5 seconds, 4-way valve reverses flow, then defrosting finishes. () Conditions to finish defrosting mode. When the defrosting thermistor temperature is.; or more.. When it has spent 0 minutes for defrosting. Defrosting finishes at condition of or. -.Discharge temperature protection control This protection controls the compressor ON/OFF and operation frequency according to temperature of the discharge temperature thermistor. () Compressor ON/OFF When temperature of the discharge temperature thermistor exceeds 6;, the control stops the compressor. When temperature of the discharge temperature thermistor is 80; or less, the controls starts the compressor. () Compressor operation frequency When temperature of the discharge temperature thermistor is expected to be higher than 6;, the control decreases Hz from the current frequency. When temperature of the discharge temperature thermistor is expected to be higher than ; and less than 6;, the control decreases 6Hz from the current frequency. When temperature of the discharge temperature thermistor is expected to be higher than 04; and less than ;, the control is set at the current frequency. -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 07; 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. -5.Outdoor fan control Fan speed is switched according to the number of operating indoor unit and the compressor frequency. Fan speed High Down Up Low Min. Compressor frequency Max. <Relation between compressor frequency and fan speed.> MXZ-A8WV Mode COOL HEAT Fan speed Up Down Up Down Indoor unit operation unit units 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 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 MXZ-A6WV, AWV Mode COOL HEAT Fan speed Up Down Up Down Indoor unit operation unit units, 4 units 45Hz 5Hz 50Hz 40Hz 50Hz 40Hz 55Hz 45Hz 55Hz 45Hz 60Hz 50Hz
-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 00 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 00 rpm, the fan may stop by the influence of wind, but restarts 0 seconds later. -7.Relation between main sensor and actuator Relation between main sensor and actuator. MXZ-A8WV Sensor Discharge temperature thermistor Purpose Protection Compressor LEV Actuator Outdoor fan motor Reversing valve Indoor pipe temperature thermistor Defrosting Protection Defrost thermistor Defrosting Evaporation temperature thermistor Control Gas pipe temperature thermistor Control Fin temperature thermistor Protection High-pressure protect thermistor Protection Capacity code Control MXZ-A6WV, AWV Sensor Discharge temperature thermistor Purpose Protection Compressor LEV Actuator Outdoor fan motor Reversing valve Indoor pipe temperature thermistor Defrosting Protection Defrost thermistor Defrosting Evaporation temperature thermistor Control Gas pipe temperature thermistor Control Fin temperature thermistor Protection Outdoor heat exchanger temperature Protection Capacity code Control 5
TROUBLESHOOTING MXZ-A8WV- E MXZ-A6WV- E MXZ-AWV- E -. Cautions on troubleshooting. Before troubleshooting, check the following: ) Check the power supply voltage. ) Check the indoor/outdoor connecting wire for mis-wiring.. Take care the following during servicing. ) 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. ) 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. ) 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. Troubleshooting procedure ) 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. ) 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. ) When troubleshooting, refer to the flow chart on this page and the check table on page 5, 54, 55 and 56. -. 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-A8WV - E MXZ-A6WV - E MXZ-AWV - E Operation start Check the outdoor unit LED indicator. OFF A Check of power supply See page 58. Both LED and LED lighting LED or LED has blinked. Refer to indicator list on page 5,54,55 and 56. Indoor unit serial signal error B Check of serial signal See page 59. COOL or HEAT operation only C Check of R.V.coil See page 60. When cooling, heat exchanger of non-operating indoor unit frosts. When heating, nonoperating indoor unit gets warm. D Check of LEV See page 6. When cooling, dew drops in the non-operating indoor unit. Check of mispiping When heating, room does not get warm. E Check of inverter, compressor See page 6 or 6. Check mis-piping, shortage of capacity When cooling, room does not cool. E Check of inverter, compressor See page 6 or 6. 5
-. Troubleshooting check table MXZ-A8WV - E LED (Red) Lighting LED (Yellow) Lighting Error mode Normal LED (Red) Indication LED (Yellow) Abnormal point Lighting Once Indoor unit and LEV Symptom: Outdoor unit does not operate. Detecting method When the drain abnormality is detected in the indoor unit and the indoor unit coil temperature is too low, or when any abnormality is detected in the components of indoor unit. Check points Check the abnormality indication on the indoor unit. Check the LEV. Lighting Twice Outdoor power system Lighting 7 times Outdoor control system Lighting 8 times Active filter module When the compressor operation has been interrupted by over current protection continuously three times within minute after start-up. When the nonvolatile memory data cannot be read properly on the outdoor electronic control P.C. board. When active filter module self-protection has been performed continuously three times. Check the inverter/compressor. Replace the outdoor electronic control P.C. board. Replace the outdoor electronic control P.C. board. Lighting 9 times DC voltage sensing circuit When DC voltage sensing circuit detects 57V or below or 95V or above. Replace the outdoor electronic control P.C. board. LED (Red) Indication LED (Yellow) Abnormal point Lighting times Discharge temperature thermistor Symptom: It is repeated that outdoor unit stops and restarts minutes later. Detecting method When a short or open circuit occurs in the discharge temperature thermistor during compressor operating. Check points Check the characteristic of the discharge temperature thermistor. Check the connector. (CN66) Lighting 4 times 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. (CN66) 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 thermistor When a short or open circuit occurs in the evaporation temperature thermistor during compressor operating. Check the characteristic of the evaporation temperature thermistor. Check the connector. (CN66) 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. (CN66) Lighting Gas pipe temperature A thermistor 0 times Gas pipe temperature B thermistor When a short or open circuit occurs in the gas pipe temperature A thermistor during compressor operating. 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 A thermistor. Check the connector. (CN66) Check the characteristic of the gas pipe temperature B thermistor. Check the connector. (CN66) Twice Goes out Overcurrent protection 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. times Goes out 4 times Goes out 4 times Goes out Discharge temperature overheat protection Fin temperature overheat protection P.C. board temperature overheat protection When the discharge temperature thermistor detects 6: or above. (Protection will be released at 00: or below.) When the fin temperature thermistor detects 87: or above. When the P.C. board temperature thermistor detects 70: or above. Check the amount of gas and the refrigerant cycle. Check the outdoor unit air passage. Check the outdoor unit air passage. Check the outdoor fan motor. Check the power module. Check the outdoor unit air passage. Check the outdoor fan motor. Replace the outdoor electronic control P.C. board. 5 times Goes out High-pressure protection When high-pressure protect thermistor detects 69: or more. Check the outdoor unit air passage. Check the outdoor fan motor. 5
LED (Red) Indication LED (Yellow) Abnormal point Symptom: Outdoor unit operates (The compressor operates at reduced frequency) Detecting method Once Lighting Current protection When the outdoor unit input current exceeds A. 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. times Lighting 4 times Lighting Discharge temperature protection Low discharge temperature protection When the discharge temperature exceeds 04 C. When the state with low discharge temperature of which 7 C or below in COOL and 5 C or below in HEAT for lasts 0 minutes. 5 times Lighting High-pressure protection When high-pressure protect thermistor detects 58: or more. 6 times Lighting Overload protection When the compressor load exceeds the specified value. Check points 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. LED (Red) Indication LED (Yellow) Abnormal point Detecting method Check points Lighting 5 times Defrost thermistor Check the characteristic of the defrost temperature thermistor. Check the connector. (CN66) Lighting 6 times Power factor detection When the compressor power factor cannot be detected. Check the compressor wiring. Lighting 8 times Active filter module protection When active filter module self-protection has been performed. Lighting 9 times Service mode When a short or open circuit occurs in the defrost thermistor during heating. When operating unit with compressor relay connector disconnected. 54
MXZ-A6WV - E LED (Red) Lighting MXZ-AWV - E LED (Yellow) Lighting Error mode Normal LED (Red) Indication LED (Yellow) Abnormal point Lighting Once Indoor unit and LEV Symptom: Outdoor unit does not operate. Detecting method When the drain abnormality is detected in the indoor unit and the indoor unit coil temperature is too low, or when any abnormality is detected in the components of indoor unit. Check points Check the abnormality indication on the indoor unit. Check the LEV. Lighting Twice Outdoor power system Lighting 7 times Outdoor control system When the compressor operation has been interrupted by over current protection continuously three times within minute after start-up, or when power factor control module protection or DC control protection is activated three times within minutes after the compressor get started. When the nonvolatile memory data cannot be read properly on the outdoor electronic control P.C. board. Check the inverter/compressor. Replace the outdoor electronic control P.C. board. LED (Red) Indication LED (Yellow) Abnormal point Lighting times Discharge temperature thermistor Symptom: It is repeated that outdoor unit stops and restarts minutes later. Detecting method When a short or open circuit occurs in the discharge temperature thermistor during compressor operating. Check points Check the characteristic of the discharge temperature thermistor. Check the connector. (CN66) Lighting 4 times 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. (CN) 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 thermistor When a short or open circuit occurs in the evaporation temperature thermistor during compressor operating. Check the characteristic of the evaporation temperature thermistor. Check the connector. (CN66) Lighting 5 times Outdoor heat exchanger temperature thermistor When outdoor heat exchanger temperature thermistor is short or open while compressor is operating. Check the characteristic of the high pressure protect thermistor. Check the connector. (CN66) Lighting 6 times Current sensor When the output from compressor current sensor becomes 5A or more while the compressor is operating. 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. (CN66) Lighting Gas pipe temperature B thermistor 0 times Gas pipe temperature C thermistor When a short or open circuit occurs in the gas pipe temperature B thermistor during compressor operating. 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 B thermistor. Check the connector. (CN66) Check the characteristic of the gas pipe temperature C thermistor. Check the connector. (CN66) 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. (CN66) Lighting times Lighting Communication error between P.C. boards times Zero cross signal error When the communication failure between the outdoor electronic control P.C. board and power board occurs twice consecutively. When zero cross signal cannot be detected while the compressor is operating. Check if the connection wires between outdoor electronic control P.C. board and power board are correctly connected. Check if the connection wires between noise filter P.C. board and power board are correctly connected. Twice Goes out Overcurrent protection 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. times Goes out 4 times Goes out Discharge temperature overheat protection Fin temperature overheat protection When the discharge temperature thermistor detects 6: or above. (Protection will be released at 00: or below.) When the fin temperature thermistor detects 87: or above. Check the amount of gas and the refrigerant cycle. Check the outdoor unit air passage. Check the outdoor unit air passage. Check the outdoor fan motor. Check the power module. 55
LED (Red) Indication LED (Yellow) 4 times Goes out Abnormal point 5 times Goes out High-pressure protection 8 times Goes out P.C. board temperature overheat protection Power factor control module protection Symptom: It is repeated that outdoor unit stops and restarts minutes later Detecting method When the P.C. board temperature thermistor detects 70: or above. When outdoor heat exchanger temperature thermistor detects 69: or more. When high-pressure switch detects 4MPa or more. When the overcurrent to power factor controller occurs or the output voltage from power factor controller becomes 400V or more. Check points Check the outdoor unit air passage. Check the outdoor fan motor. Replace the outdoor electronic control P.C. board. Check the outdoor unit air passage. Check the outdoor fan motor. Check the input voltage. Check the inverter. 9 times Goes out DC voltage protection times Goes out Fan motor protection When it's detected that DC voltage becomes 00V or less, or reaches 400V or more. When fan motor current is A or more, or when the abnormality is detected in the feedback signal from fan motor. Check the voltage of power supply. Check the inverter. Check the outdoor fan motor. Check the fan motor connector. LED (Red) Indication LED (Yellow) Abnormal point Symptom: Outdoor unit operates (The compressor operates at reduced frequency) Detecting method Once Lighting Current protection When the outdoor unit input current exceeds 4.5A. Twice Lighting High-pressure protection When indoor gas pipe temperature exceeds 55 C during heating. Twice Lighting Defrosting in cooling When indoor gas pipe temperature falls to 6 C or below during cooling. times Lighting 4 times Lighting Discharge temperature protection Low discharge temperature protection 5 times Lighting High-pressure protection When the discharge temperature exceeds 04 C. When the state with low discharge temperature of which 7 C or below in COOL and 5 C or below in HEAT lasts for 0 minutes. When outdoor heat exchanger temperature thermistor detects 58: or more. Check points 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. LED (Red) Indication LED (Yellow) Abnormal point Detecting method Check points Lighting 5 times Defrost thermistor Lighting 9 times Service mode When a short or open circuit occurs in the defrost thermistor during heating. When the unit operates EMERGENCY OPERATION. Check the characteristic of the defrost temperature thermistor. Check the connector. (CN66) 56
MXZ-A8WV - E MXZ-A6WV - E MXZ-AWV - E Part name Defrost thermistor Evaporation/ Gas pipe/ High-pressure protect/ Outdoor heat exchanger temperature thermistor Discharge temperature thermistor Measure the resistance using a tester. (Part temperature : -0 C ~ 40 C) Normal 5kΩ ~ 55kΩ Normal 00kΩ ~ 50kΩ Check method and criterion abnormal Open or short-circuit Measure the resistance using a tester, after warming up the thermistor by holding by hand. (Part temperature : 0 C ~ 40 C) abnormal Opened or short-circuit Fin temperature thermistor Measure the resistance using a tester. (Part temperature : 0 C ~ 40 C) Normal 5kΩ ~ 00kΩ abnormal Open or short-circuit Compressor W RED Measure the resistance between terminals using a tester. (Winding temperature : -0 C ~ 40 C) V WHT U Normal MXZ-A8WV MXZ-A6/AWV Each phase.5ω ~.76Ω Each phase.9ω ~.49Ω abnormal Open or short-circuit Outdoor fan motor MXZ- P A8WV WHT ORN RED YLW Protector specification Short 87I5: Open 5I5: MXZ-A6/ AWV RED U (W) WHT V (V) W (U) Measure the resistance between lead wires using a tester. (Part temperature : -0 C ~ 40 C) Color of lead wire WHT - - YLW - RED Color of lead wire RED - - WHT WHT - RED Normal MXZ-A8WV.0Ω ~ 50.0Ω 0.0Ω ~ 6.0Ω Ω ~.0Ω Normal MXZ-A6/AWV.4Ω ~ 6.4Ω abnormal Open or short-circuit abnormal Open or short-circuit (Not including WHT - ORN) R. V. coil Measure the resistance using a tester. (Part temperature : -0 C ~ 40 C) Normal abnormal.6kω ~.kω Open or short-circuit Linear expansion valve WHT RED LEV ORN YLW BRN BLU Measure the resistance using a tester.(part temperature : -0 C ~ 40 C) Color of lead wire WHT - RED RED - ORN YLW - BRN BRN - BLU Normal 7.4Ω ~ 5.9Ω Abnormal Open or short-circuit High pressure switch (HPS) MXZ-A6/AWV HPS Pressure Normal abnormal Operation OFF Other than Short.7 ± 0.5MPa those listed at left 4.8 + 0.05 - MPa Open 0. P Inner protector 57
Outdoor unit does not operate. (LED display: display OFF) A Check of power supply MXZ-A8WV Start Check the connecting of parts of main power supply circuit. Turn on power supply. Is there voltage of 0V AC in the power supply terminal block? Yes Is there voltage of 0V AC across the input terminal part in the diode module (TAB6 and TAB6)? Yes Is there voltage of 5V DC across the smoothing capacity (C6)? Yes Replace the outdoor electronic control P. C. board. No No No Check the power supply cable. Is fuse (F6) blown? Yes Replace the fuse. Yes Replace the reactor. No Is the resistance between terminal of reactor (L)? Replace the noise filter P. C. board. MXZ-A6/AWV Start Check the connecting of parts of main power supply circuit. Turn on power supply. Is there voltage of 0V 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 0V AC? No Is fuse (F9) blown? No Replace the noise filter P. C. board. Yes Yes Replace the fuse. Is the input voltage to the power board 0V AC? No Replace the reactor. Yes Is the input voltage to the outdoor electronic control P.C. board 5V DC? No Replace the power board. Yes Replace the outdoor electronic control P. C. board. 58
Outdoor unit does not operate. (LED display: Both LED and LED lighting) B Check of outdoor unit serial signal Start. Check the indoor unit with referring to "How to check mis-wiring and serial signal error" in service manual of indoor unit.. Turn off the power supply of the indoor and outdoor unit and connect the indoor/ outdoor unit connecting wire correctly.. Check the connection of indoor/ outdoor unit connecting wire in the outdoor unit terminal block, and check the connection of the connector CN60: unit A, CN60: unit B (MXZ-A8WV)/ CN60: unita, CN60: unitb, CN60: unitc, CN604: unitd (MXZ-A6/AWV) in the outdoor electronic control P. C. board. 4. Disconnect the lead wire to the compressor. minutes after turning on the power supply, start EMERGENCY OPERATION. Is there voltage from 5V DC to 0V DC between No. (+) and N (-) in the outdoor terminal block? Yes Recheck a connected circumstance of the indoor/ outdoor unit connecting wire. No Replace the outdoor electronic control P. C. board. 59
The cooling operation or heating operation does not operate. (LED display: Both LED and LED lighting) C Check of R. V. coil When heating operation does not work. Start. Disconnect the lead wire leading to the compressor.. minutes after turning on the power supply, start EMERGENCY OPERATION in HEAT mode. Is there voltage of 0V AC between pin and pin at connector CN9? Yes Turn off power supply of indoor and outdoor unit. No. Turn off power supply of indoor and outdoor unit, and disconnect the connector CN85 (MXZ-A8WV)/ CN78 (MXZ-A6/AWV) in the outdoor electronic control P.C. board.. minutes after turning on the power supply, start EMERGENCY OPERATION in HEAT mode. Disconnect the connector CN9 in noise filter P. C. board. Is there normal resistance to R.V. coil? Yes Replace the 4-way valve. No Replace the R.V. coil. Is there voltage V DC between the connector CN85 pin (+) and pin 4 (-) (MXZ-A8 WV)/ CN78 pin 5 (+) and pin (-) (MXZ-A6/AWV)? Yes Replace the noise filter P.C. board. No Replace the electronic control P.C. board. When cooling operation does not work. Start. Disconnect the lead wire leading to the compressor.. minutes after turning on the power supply, start EMERGENCY OPERATION in COOL mode. Is there voltage of 0V AC between pin and pin at connector CN9? Yes No Replace the 4-way valve.. Turn off power supply of indoor and outdoor unit, and disconnect the connector CN85 (MXZ-A8WV)/ CN78 (MXZ-A6/AWV) in the outdoor electronic control P. C. board.. minutes after turning on the power supply, start EMERGENCY OPERATION in COOL mode. Is there voltage V DC between the connector CN85 pin (+) and pin 4 (-) (MXZ-A8 WV)/ CN78 pin 5 (+) and pin (-) (MXZ-A6/AWV)? W Yes No Replace the outdoor electronic control P. C. board. Replace the noise filter P. C. board. W If the connector CN9 is not connected or R. V. coil is open, voltage occurs between terminals even when the control is OFF. 60
When cooling, heat exchanger of non-operating indoor unit frosts. When heating, non-operating indoor unit get warm. D Check of LEV Start LED display: LED LED Lighting Lighting 6 time Goes out Turn on power supply to the outdoor unit after checking LEV coil is mounted to the LEV body securely. Is "click - click" sound heard? Or, do you feel vibration of the LEV coil with a hand? No Disconnect the connector CN77: LEV A, CN77: LEV B (MXZ-A8WV)/ CN79: LEV A, CN79: LEV B, CN79: LEV C, CN794: LEVD, CN795: LEV E (MXZ-A6/AWV). Is there normal resistance to LEV coil? No Replace the LEV coil. Yes Yes Normal Replace the outdoor electronic control P. C. board. 6
When heating, room does not get warm. When cooling, room does not get cool. E Check of inverter/ compressor MXZ-A8WV LED display: LED LED Lighting Lighting Lighting Twice Twice Goes out Start Disconnect the terminal of the compressor at terminals. minutes after turning on the power supply, start EMERGENCY OPERATION. W Measure the voltage between each lead wire leading to the compressor. U () - V (WHT) V (WHT) - W (RED) No W (RED) - U () Output voltage COOL: 50V(58Hz), HEAT: 50V (58Hz) Is voltage output? W Yes Is output balanced? Yes No Turn off power supply of indoor and outdoor unit, and measure the compressor winding resistance between the compressor terminals. Is there resistance of 0.5" to 0.66" between the each terminals? Yes Reconnect the lead wire of compressor to former, and turn on power supply to indoor and outdoor unit. minutes later, start EMERGENCY OPERATION. After the outdoor fan starts running, wait for minutes or more before measuring the voltage. The output voltage values have the tolerance of i0%. Replace the outdoor electronic control P. C. board. No Replace the compressor. Clarify the causes by counting time until the inverter stops. 0 to 0 seconds: compressor rare short 0 to 60 seconds: compressor lock 60 seconds to 5minutes: refrigerant circuit defective 5 minutes or more: normal 6
MXZ-A6/AWV Start Disconnect the terminal of the compressor. minutes after turning on the power supply, start EMERGENCY OPERATION. Measure the voltage between each lead wire leading to the compressor. U () - V (WHT) V (WHT) - W (RED) W (RED) - U () Output voltage COOL: 50V(48Hz) HEAT: 70V(64Hz) Is voltage output? W Yes No Is output balanced? Yes W No After the outdoor fan starts running, wait for minutes or more before measuring the voltage. The output voltage values have the tolerance of i0%. Is the input voltage to the outdoor electronic control P.C. board 70V or more? Yes No Replace the power board. Turn off power supply of indoor and outdoor unit, and measure the compressor winding resistance between the compressor terminals. Is the resistance between each terminal normal? Yes Reconnect the lead wire of compressor to former, and turn on power supply to indoor and outdoor unit. minutes later, starts EMERGENCY OPERATION. No Replace the compressor. Clarify the causes by counting time until the inverter stops. 0 to 0 seconds: compressor rare short 0 to 60 seconds: compressor lock 60 seconds to 5minutes: refrigerant circuit defective 5 minutes or more: normal 6
When thermistor is abnormal. (When the LED display is a table below.) F Check of outdoor unit thermistor MXZ-A8WV Start Disconnect the connector in the outdoor electronic control P. C. board (see below table), and measure the resistance of thermistor to check whether the thermistor is normal or not. Normal Abnormal Replace the thermistor. Reconnect the connector CN66, CN66 and CN66 on the outdoor electronic control P.C. board, and disconnect the lead wire leading to the compressor. minutes after turning on the power supply, start EMERGENCY OPERATION. Does thermistor operate 0 minutes or more though the thermistor abnormality is not displayed? Yes Normal No Replace the outdoor electronic control P. C. board. 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 Symbol RT6 RT6 RT6 RT68 RT6A RT6B RT65 Connector, Pin No. Between CN66 pin and pin4 Between CN66 pin and pin Between CN66 pin5 and pin6 Between CN66 pin7 and pin8 Between CN66 pin and pin Between CN66 pin and pin4 Between CN66 pin and pin MXZ-A6/AWV 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. Normal Abnormal Replace the thermistor. Reconnect the connector CN66 and CN66 on the outdoor electronic control P.C. board and CN on the power board, and disconnect the lead wire leading to the compressor. minutes after turning on the power supply, start EMERGENCY OPERATION. Does thermistor operate 0 minutes or more though the thermistor abnormality is not displayed? Yes Normal No Replace the outdoor electronic control P. C. board. Thermistor Discharge temperature thermistor Defrost thermistor Evaporation temperature thermistor Outdoor heat exchanger temperature thermistor Gas pipe temperature thermistor (Unit A) Gas pipe temperature thermistor (Unit B) Gas pipe temperature thermistor (Unit C) Gas pipe temperature thermistor (Unit D) Fin temperature thermistor Symbol RT6 RT6 RT6 RT68 RT6A RT6B RT6C RT6D RT65 64 Connector, Pin No. Between CN66 pin and pin4 Between CN66 pin and pin Between CN66 pin5 and pin6 Between CN66 pin7 and pin8 Between CN66 pin and pin Between CN66 pin and pin4 Between CN66 pin5 and pin6 Between CN66 pin7 and pin8 Between CN pin and pin
Fan motor does not operate or stops operating shortly after starting the operation. G Check of outdoor fan motor MXZ-A8WV Start Check the connection of connector CN85 in the fan motor relay connector and outdoor electronic control P. C. board at the noise filter P. C. board and connector CN90 in the noise filter board. Disconnect the fan motor connector, and measure the resistance of the fan motor winding to check the winding characteristic. Normal Abnormal Replace the fan motor.. Disconnect the lead wire leading to the compressor. minutes after turning on the power supply, start EMERGENCY OPERATION.. Check the voltage between pin and pin 4, pin and pin 5 at the fan motor connector. Is there voltage of 0V AC? No Yes. Turn off power supply of the indoor and outdoor unit, and disconnect the connector (CN85).. Is the voltage 0V, when the voltage between CN85 pin (+), pin7 (-), pin6 (-) are measured after the power supply is turned on the outdoor unit? Yes minutes after turning on the power supply, start EMERGENCY OPERATION. Is there voltage of V DC between CN85 pin (+) and pin6 (-)? Yes Replace the noise filter P. C. board. No No Replace the oudtoor electronic control P. C. board. MXZ-A6/AWV Start Check the connection between the connector CN9 and CN9. Is the resistance between each terminal of outdoor fan motor normal? Yes Disconnect CN9 from outdoor electronic control P.C. board, and turn on the power supply. Rotate the outdoor fan motor manually and measure the voltage of CN9. Between (+) and 5(-) Between (+) and 5(-) Between (+) 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
When the operation frequency does not go up from lowest frequency. H Check of HPS MXZ-A6/AWV Start. Disconnect the connector CN68 in the electronic control P. C. board.. Check the resistance of HPS after minutes have passed since the outdoor unit power supply was turnd off. Check the resistance between each terminal. 0" Infinity Replace HPS. Reconnect CN68 to former. Turn on power supply to the indoor and outdoor unit. minutes lator, starts EMERGENCY OPERATION. Yes Is HPS protection displayed immediately after compressor starts? Yes Normal No Replace the electronic control P. C. board. I The other cases MXZ-A6/AWV 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 minute later. MXZ-A8/A6/AWV 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
MXZ-A8WV - E Outdoor electronic control P.C. board F80 FUSE A/50V 0V AC 50Hz Input Resistance (k') 700 600 500 400 00 00 00 ( ( Serial signal Room A CN60 5 ~ 0V DC Serial signal Room B CN60 5 ~ 0V DC LED LED ( Common () ( Common (+) ( Discharge temperature thermistor (RT6) 0 0 0 0 0 40 50 60 70 80 90 00 0 0 Temperature (;) Common () ( Common (+) ( ( CN77 Room B Linear expansion valve (LEV) V DC pulse wave CN77 Room A Linear expansion valve (LEV) V DC pulse wave Outdoor fan High () Outdoor fan Low () Rush current relay () )CN85 V DC Common (+) R.V. coil () CN66 Fin temperature thermistor (RT65) High-pressure protect thermistor (RT68) Defrost thermistor (RT6) Discharge temperature thermistor (RT6) CN Evaporation temperature thermistor (RT6)66 Fin temperature thermistor (RT65) 00 80 60 40 0 00 80 60 40 0 0 0 0 0 0 40 50 60 70 80 Temperature (;) Resistance (k') Gas pipe temperature A thermistor (RT6A) CN Gas pipe temperature B thermistor (RT6B) 66 ( ( ( ( ( ( ( ( Defrost temperature thermistor (RT6) Evaporation temperature thermistor (RT6) Gas pipe temperature thermistor (RT6A,6B) High-pressure protection thermistor (RT68) Resistance (k') 00 90 80 70 60 50 40 0 0 0 67 0-0 -0 0 0 0 0 40 Temperature (;)
MXZ-A6WV - E MXZ-AWV - E Outdoor electronic control P.C. board Resistance (k') 700 600 500 400 00 00 00 Discharge temperature thermistor (RT6) 0 0 0 0 0 40 50 60 70 80 90 00 0 0 Temperature (;) CN9 0-90V AC ( 5V DC (pulse wave To fan motor ( CN9 GND 5V Outdoor heat exchanger temperature thermistor (RT68) ( Evaporation temperature thermistor (RT6) ( Discharge temperature thermistor (RT6) ( Defrost thermistor (RT6) ( CN66 Defrost temperature thermistor (RT6) Evaporation temperature thermistor (RT6) Gas pipe temperature thermistor (RT6A,6B) Fin temperature thermistor (RT65) Outdoor heat exchanger temperature thermistor (RT68) 00 80 00 90 60 80 40 0 00 80 70 60 50 60 40 40 0 0 0 0 0 0 40 50 60 70 80 0 0 Temperature (;) 0 Resistance (k') CN70 Signal transmission (+) (To power board) ( () 5V DC pulse wave 5V CN70 5V Signal reception () (From power board) 5V DC pulse wave (GND (+) CN78 (+) R.V. coil () V( DC Rush current relay () GND (power board) Resistance (k') 0-0 -0 0 0 0 0 40 Temperature (;) CN795 V DC pulse wave LEV E( () ( (+) ( LED LED CN60 5V DC ~ 70V DC Input F80 FUSE.5A/50V (+) () (+) () (+) () ( ( ( CN604 Serial signal Room D 5~0V DC CN60 Serial signal Room C 5~0V DC CN60 Serial signal Room B 5~0V DC (+) () ( CN60 Serial signal Room A 5~0V DC Gas pipe A thermistor Gas pipe B thermistor Gas pipe C thermistor CN66 Gas pipe D thermistor ( ( ( ( CN68 High pressure switch ( ( ( (+) LEV Room D () V DC pulse wave CN794 ( ( (+) LEV Room C 68 () V DC pulse wave CN79 ( ( (+) LEV Room B () V DC pulse wave CN79 ( ( (+) LEV Room A () ( ( ( ( V DC pulse wave CN79
MXZ-A8WV - E Noise filter P.C.board F9 FUSE.5A/50V NR6 VARISTOR 0V AC 50Hz Input F9 FUSE A/50V 0V AC 50Hz Output CN9 R.V. Coil 0V AC CN9 Outdoor Fan Fan speed High 0V AC CN9 Outdoor Fan Fan speed Low 0V AC MXZ-A6WV - E MXZ-AWV - E Noise filter P.C.board Electronic control board Power board { { { R.V. coil 0V AC { 0V AC 50Hz Input 0V AC 50Hz Output F9 FUSE A/50V F9 FUSE.5A/50V NR6 VARISTOR 69
MXZ-A6WV - E MXZ-AWV - E Outdoor Power board Connect to the compressor Voltage among phases: 5V to 80V 5-70V DC Output (Red) (+) () (White) Connect to the earth CN Fin temperature thermistor CN Connect to the controller board (+)-5(): Signal transmission (To electronic control P.C. board) 5V DC pulse wave (+)-5(): Zero cross signal -4 : Not used (+)6-5(): 5V (+)7-5(): 5V Signal reception (From electronic control P.C. board) 5V DC pulse wave CN5 Primary current detection (Connect to the noise filter) ) 70
DISASSEMBLY INSTRUCTIONS -. MXZ-A8WV - E OUTDOOR UNIT OPERATING PROCEDURE. Removing the cabinet.. Removing the cabinet. () Remove the screws of the top panel. () Remove the top panel. () Remove the screw of the service panel. (4) Remove the service panel. (5) Remove the screws of the front panel. Photo PHOTOS Photo Screws of the top panel Photo 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 Screws of the front panel. Removing the inverter assembly () Remove the top panel, service panel and front panel. () Remove indoor/outdoor connecting wire and power supply cable. () 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. Photo 4 Screw of the relay panel LEV, R.V.coil and thermistor connectors Compressor connector Fan motor connector 7
OPERATING PROCEDURE. Removing the Outdoor Electronic control P.C. board. () Remove the top panel, service panel and front panel. () Remove the connector coming out of the compressor. () 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. ) (4) Remove the screw fixing the cover of the electronic control P.C. board. (5) Remove the cover of the electronic control P.C. board. (6) Remove the screw fixing the heat sink. (7) Remove the hooks fixing the electronic control P.C. board. (8) Disconnect all the connectors and the terminal on the electronic control P.C. board. (9) Remove the electronic control P.C. board. Photo 5 PHOTOS Screws of the cover Screws of fan motor TAB4 Fig. Compressor connector Relay panel Propeller Propeller nut Photo 6 Screw of heat sink Terminal of reactor hooks X64 Push up the connector by holding the part shown by the arrows. 4. Removing the propeller and fan motor () Remove the top panel, service panel and front panel. () Remove the fan motor connector (CN9) from the noise filter P.C. board. Remove the inverter assembly and then lead wires from cable clamp. () Remove the propeller nut. (4) Remove the propeller. (5) Remove the screws of fan motor. (6) Remove the fan motor Photo 7 Cable clamp 7
OPERATING PROCEDURE 5. Removing the thermistor Discharge temperature thermistor, defrost, evaporator temperature, high-pressure protect, gas pipe temperature A and gas pipe temperature B () Remove the top panel, service panel, front panel. () Remove indoor/outdoor connecting wire and power supply cable. () Remove thermistor connector (CN66, CN66) 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 () Remove the top panel, service panel and front panel. () Remove the connector coming out of the compressor. () Remove the compressor connector coming out of the electronic control P.C. board. (Fig. ) (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: M4.8 I0.[Nm] DS: M 0.78 I0.[Nm] AFM: M.5 0.98 I0.[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. Photo 8 Photo 9 PHOTOS High-pressure protect thermistor Terminal cover Discharge temperature thermistor Defrost thermistor Defrost thermistor Gas pipe temperature thermistor A, B Sound proof felt Evaporator temperature thermistor Photo 0 Heat sink Fin temperature thermistor 7
OPERATING PROCEDURE 6. Removing the compressor/4-way valve () 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. () Remove indoor/outdoor connecting wire and power supply cable. () 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. Photo PHOTOS Welded parts of compressor suction and discharge pipes 4-way valve welded parts 74
-. MXZ-A6WV - E MXZ-AWV - OUTDOOR UNIT OPERATING PROCEDURE. Removing the compressor ()Remove the screws of the top panel, and remove it. ()Remove the screws of the service panel, and remove it. Recover refrigerant gas. ()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. CN66, CN66, CN68, CN79, CN79, CN79, CN794 (MXZ-AWV), CN795, CN9, CN9 Disconnect the noise filter P.C. board connector. CN9 (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. (0)Detach the welded parts of the compressor suction and discharge pipes. (Photo ) ()Remove the compressor nuts and remove the compressor. E PHOTOS Photo Screws of the top panel Screws of the front panel Photo Screws of service panel Screws of the electrical parts Electronic control P.C. board Photo LEV coil Expansion valve Suction pipe welded part Discharge pipe welded part Terminal 75
OPERATING PROCEDURE. Removing the fan motor ()Remove the top panel, the service panel, and the front panel. (Photo ) ()Disconnect the connector CN9 on the outdoor electronic control P.C. board. ()Remove the propeller. (4)Remove the fan motor. Photo 4 PHOTOS Screws of the outdoor fan motor Propeller Propeller nut Separator Compressor nuts Sound proof felt. Removing the 4-way valve ()Remove the top panel. (Photo ) ()Remove the service panel, rear panel, and pipe cover. Recover refrigerant gas. ()Remove the electrical parts. (Photo ) (4)Detach the welded parts of 4-way valve and pipe. (Photo 5) Photo 5 4 way valve R. V. coil Welded parts 4. Removing the expansion valve ()Remove the top panel. (Photo ) ()Remove the service panel. (Photo ) (Gas recovery is not required if the unit is pumped down.) ()Remove the LEV coil. (4)Detach the welded parts of expansion valves and pipes. Photo 6 LEV coils Expansion valves 76
OPERATING PROCEDURE PHOTOS 5. Removing the reactor ()Remove the top panel. (Photo ) ()Disconnect the reactor lead wire. ()Remove the screws of the reactor, and remove the reactor. Photo 7 Screws of the reactor 77
4 PARTS LIST MXZ-A8WV - E 4-. OUTDOOR UNIT FUNCTIONAL PARTS AND STRUCTURAL PARTS 0 9 8 6 5 4 7 0 9 4 5 6 7 8 Part numbers that are circled are not shown in the illustration. No. Parts No. Parts Name Symbol in Wiring Diagram Q'ty/unit MXZ-A8WV- E Remarks 4 5 6 7 8 9 0 4 5 6 7 8 9 0 4 5 E0 89 5 E0 77 E0 89 009 E0 4 50 E0 75 0 E0 065 506 E0 75 900 E0 77 90 E0 75 66 E0 75 66 E0 76 49 E0 75 49 E0 75 640 E0 75 97 E0 75 96 E0 75 490 E0 77 45 E0 77 E0 87 009 E0 66 55 E0 75 60 E0 89 97 E0 75 9 E0 069 96 E0 75 96 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 MF MC B A LEV A,B S4 RA6V49- RUBBERS/SET SNV-09FJYH [.8O[0.6O750 [.0O[.0O400 [.0O[.8O600 78
MXZ-A8WV - E 4-. OUTDOOR UNIT ELECTRICAL PARTS 4-. ACCESSORY 9 8 7 4 4 5 6 4-. OUTDOOR UNIT ELECTRICAL PARTS Part numbers that are circled are not shown in the illustration. No. Parts No. Parts Name Symbol in Wiring Diagram Q'ty/unit MXZ-A8WV- E Remarks 4 5 6 7 8 9 0 E0 75 7 E0 75 444 E0 75 74 E0 57 75 E0 75 4 E0 75 8 E0 75 06 E0 75 08 E0 75 450 E0 75 09 E0 75 85 E0 77 8 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 L TB TB F6 RT6A,RT6B RT6,RT6,RT6,RT68 RT65 F9,NR6 F80,F9 0A 50VAC DISCHARGE,DEFROST EVAPORATOR,HIGH-PRESSURE PROTECT.5A 50V A 50V 4-. ACCESSORY 4 E0 87 704 E0 444 705 DRAIN SOCKET DRAIN CAP PCS/SET 79
MXZ-A6WV - E MXZ-AWV - E 4-4. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS 5 4 0 9 8 4 5 7 6 5 6 7 8 9 0 4 80
4-4. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. No. 4 5 6 7 8 9 0 4 5 6 7 8 9 0 4 5 6 7 8 9 Parts No. M TK0 M TK0 07 T7W E0 69 M TK0 45 T9 500 80 TW TK0 505 M TK5 646 TW TK0 654 M TK0 654 M TK5 646 TW TK0 65 M TK0 65 M TK5 646 TW TK0 65 M TK0 65 R0 E9 40 TW TK0 65 M TK0 65 M TK0 90 M 4E 644 TW TK0 47 M TK5 667 M TK0 667 M TK0 48 TW TK0 959 M 0A 96 M NT 646 R0 E4 40 TW TK0 65 M TK0 97 TW E40 5 M TK0 60 M TK0 49 M SJ4 97 M TK0 96 TW E59 96 TW E70 96 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 /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 Symbol in Wiring Diagram MC LEV D LEV C LEV B LEV A HPS LEV E LEV E MXZ-A6WV- Q'ty/unit E MXZ-AWV- E 4 Remarks TNB0FMCH RUBBERS 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 /,/8,/4 SET 4.8MPa(48.9kg/cm ) [4.0O[.4O400 [4.0O[.8O90 [.5O[0.6O000 [.0O[0.6O750 8
MXZ-A6WV - E MXZ-AWV - E 4-5. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS 0 9 7 6 4 5 8 Part numbers that are circled are not shown in the illustration. No. 4 5 6 7 8 9 0 4 5 Parts No. M TK0 50 R0 E8 TW TK0 440 M GJ8 08 TW TK 45 TW TK0 45 R0 E06 59 M TK0 44 TW E58 76 TW E65 75 TW E88 07 TW E70 07 TW TK0 98 M TK0 08 TW E08 8 TW E66 8 TW E89 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 Symbol in Wiring Diagram MF RT65 L TB~5 TB RT6A,B,C RT6A,B,C,D S4 RT6,6,6,68 F80 F9 F9,NR6 MXZ-A6WV- Q'ty/unit E MXZ-AWV- E 4 Remarks PM8H60-0+ 400V Indoor unit connecting Power supply DISCHARGE, DEFROST EVAPORATION, OUTDOOR HEAT EXCHANGER.5A 50V A 50V.5A 50V 8