Mitsubishi Electronics MXZ-32SV service manual

Contents

Main SERVICE MANUAL SPLIT-TYPE, HEAT PUMP AIR CONDITIONER CONTENTS Inverter-controlled multi system Model MXZ-32SV - MXZ-32SV - PART NAMES AND FUNCTIONS TECHNICAL CHANGES 2 Model indication OUTDOOR UNIT 3INDOOR / OUTDOOR CORRESPONDENCE TABLE Combination of the connectable indoor units There is no combination other than this table. INDOOR UNITS COMBINATION MXZ-32SV - E1 , MXZ-32SV - 4 Page Page Page 5SPECIFICATION NOISE CRITERIA CURVES6 MXZ-32SV - OUTLINES AND DIMENSIONS OB254-1.qxp 03.1.16 4:33 PM Page 10 7 2.Service space Unit: mm WIRING DIAGRAM 8 MODELS MXZ-32SV- SG79Y085H01 ELECTRONIC CONTROL P.C. BOARD REFRIGERANT SYSTEM DIAGRAM 9 (1) GUARANTEED VOLTAGE (2) AIR FLOW (3) MAIN READINGS } } PERFORMANCE CURVES 10-1-1.CAPACITYAND THE INPUT CURVES 10-3-.2.Capacity and input correction by inverter output frequency (OUTDOOR UNIT:MXZ-32SV) 4. 18-class unit in single operation 1. 07-class unit in single operation 2. 09-class unit in single operation 10-3-4.Outdoor low pressure and outdoor unit current Page Page Page MICROPROCESSOR CONTROL 11 INVERTER MULTI SYSTEM CONTROL 11-1.LEV control - 11-2.Operational frequency range 11-3.Heat defrosting control 11-4.High or low pressure protection 11-5.Discharge temperature protection control 11-6.Refrigerant recovery control on heating 11-7.Outdoor fan control 11-8.Relation between main sensor and actuator 12 TROUBLESHOOTING 12-1. Cautions on troubleshooting 12-2. Instruction of troubleshooting Note . LED indicates "00" in the normal status. 7-segment LED display Error mode Normal aa44 (A4) aa33 (A3) pp11 dd88 (d8) dd99 (d9) dd77 12-4. Trouble criterion of main parts BBCheck of serial signal AACheck of power supply CCCheck of R. V. coil DDCheck of LEV EECheck of inverter/ compressor FFCheck of thermistor GGCheck of fan motor HHCheck of HPS IIThe other cases TEST POINT DIAGRAM AND VOLTAGE MXZ-32SV -, MXZ-32SV - Electronic control P.C.board OB254-2.qxp 03.1.16 4:37 PM Page 34 Page { OPERATING PROCEDURE PHOTOS 13-1 MXZ-32SV - , MXZ-32SV - OUTDOOR UNIT 13 DISASSEMBLY INSTRUCTIONS OPERATING PROCEDURE PHOTOS Page PARTS LIST 14-1. OUTDOOR UNIT FUNCTIONAL PARTS 14-2. OUTDOOR UNIT STRUCTURAL PARTS 6 10 3 7 4 5 14-3. ACCESSORY PARTS MXZ-32SV - MXZ-32SV - 15-1. Different-diameter pipe 15 OPTIONAL PARTS 15-2. Outlet guide