Mitsubishi Electric Mr. Slim MXZ-2B20NA Service Manual
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Mitsubishi Electric Mr. Slim MXZ-2B20NA Service Manual

Split-type air conditioners outdoor unit
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SPLIT-TYPE AIR CONDITIONERS

OUTDOOR UNIT

SERVICE MANUAL

Models
MXZ-2B20NA, -
MXZ-3B24NA, -
MXZ-3B30NA, -
MXZ-4B36NA, -
• MXZ-3B24NA-
4B36NA-
Please void OBH560 REVISED EDITION-C.
1
1
1
1
CONTENTS
1. TECHNICAL CHANGES ··································· 2
2. PART NAMES AND FUNCTIONS ····················· 3
3. SPECIFICATION ················································ 4
4. NOISE CRITERIA CURVES ······························ 8
5. OUTLINES AND DIMENSIONS ························ 9
6. WIRING DIAGRAM ·········································· 12
7. REFRIGERANT SYSTEM DIAGRAM ············· 15
8. DATA ································································ 21
9. ACTUATOR CONTROL ··································· 39
10. SERVICE FUNCTIONS ···································· 39
11. TROUBLESHOOTING ····································· 41
12. DISASSEMBLY INSTRUCTIONS ···················· 59
INDOOR UNITS COMBINATION SHEETS
PARTS CATALOG (OBB560)
The Slim Line.
From Mitsubishi Electric.
9700058
33223
, MXZ-3B30NA-
1
1
have been added.
1
No. OBH560
HFC
utilized
REVISED EDITION-D
R410A
Indoor unit service manual
MSZ-A·NA Series (OB450)
MSZ-FD·NA Series (OBH497)
MSZ-FE·NA Series (OBH542)
MSZ-GE·NA Series (OBH548)
MFZ-KA·NA Series(OBH568)
SEZ-KD·NA.TH Series
, and MXZ-
TM

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Summary of Contents for Mitsubishi Electric Mr. Slim MXZ-2B20NA

  • Page 1: Table Of Contents

    Please void OBH560 REVISED EDITION-C. OUTDOOR UNIT No. OBH560 SERVICE MANUAL utilized REVISED EDITION-D R410A Models MXZ-2B20NA, - MXZ-3B24NA, - Indoor unit service manual MXZ-3B30NA, - MSZ-A·NA Series (OB450) MSZ-FD·NA Series (OBH497) MXZ-4B36NA, - MSZ-FE·NA Series (OBH542) MSZ-GE·NA Series (OBH548) MFZ-KA·NA Series(OBH568)

  • Page 2: Technical Changes

    Revision A: • MXZ-2B20NA- has been added. Revision B: • MXZ-3B24NA and MXZ-4B36NA have been added. Revision C: • MXZ-3B30NA has been added. Revision D: • MXZ-3B24NA- , MXZ-3B30NA- , and MXZ-4B36NA- have been added. TECHNICAL CHANGES MXZ-2B20NA New model...

  • Page 3: Part Names And Functions

    PART NAMES AND FUNCTIONS MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA MXZ-2B20NA Air inlet Air inlet (Back and side) (Back and side) Air outlet Air outlet Drain outlet Drain outlet...

  • Page 4: Specification

    SPECIFICATION Outdoor model MXZ-2B20NA, - Item Indoor type Non-Duct (09+09) Duct (09+12) Cooling 18,000 20,000 Btu/h Capacity Heating 47 22,000 22,000 Btu/h Heating 17 14,500 12,500 Btu/h Cooling 1,440 2,190 Power Heating 47 1,650 1,780 consumption Heating 17 1,500 1,430 Cooling 12.50...
  • Page 5 Outdoor model MXZ-3B24NA, - Indoor type Non-Duct (06+06+09) Duct (09+09+09) Item Cooling Btu/h 22,000 23,600 Capacity Heating 47 Btu/h 25,000 24,600 Heating 17 Btu/h 18,800 17,000 Cooling 1,760 2,460 Power Heating 47 1,750 1,900 consumption Heating 17 2,120 2,230 Cooling 12.50 9.60 SEER...
  • Page 6 Outdoor model MXZ-3B30NA, - Indoor type Non-Duct (09+09+12) Duct (09+09+12) Item Cooling Btu/h 28,400 27,400 Capacity Heating 47 Btu/h 28,600 27,600 Heating 17 Btu/h 18,800 18,000 Cooling 3,120 3,330 Power Heating 47 2,150 2,220 consumption Heating 17 2,120 2,140 Cooling 9.10 8.23 SEER...
  • Page 7 Outdoor model MXZ-4B36NA, - Indoor type Non-Duct (09+09+09+09) Duct (09+09+09+09) Item Cooling Btu/h 35,400 34,400 36,000 34,400 208 V 208 V Capacity Heating 47 Btu/h 36,000 34,400 230 V 230 V Heating 17 Btu/h 24,600 25,400 Cooling 3,760 3,940 Power 3,020 3,100 208 V...

  • Page 8: Noise Criteria Curves

    NOISE CRITERIA CURVES MXZ-2B20NA MXZ-3B24NA FAN SPEED FUNCTION SPL(dB LINE FAN SPEED FUNCTION SPL(dB LINE High Cooling High Cooling High Heating High Heating NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF THRESHOLD OF HEARING FOR...

  • Page 9: Outlines And Dimensions

    OUTLINES AND DIMENSIONS MXZ-2B20NA Unit: inch 1.Installation space Note : Leave front and both sides free of obstruction. Grounding terminal Conduit cover Note : Leave front and overhead Lock nut Connector free of obstruction. 2.Service space Note : Leave rear, overhead and both sides...

  • Page 10: Installation Space

    MXZ-3B24NA Unit: inch MXZ-3B30NA 7-7/8" 19-11/16" 7-7/8" 9-27/32" 10-5/8" 2-U Shaped notched hole 1-3/8" (Base bolt M10) Air in Air in Drain hole 3- 1-5/16" Air out 2-(15/32" x 1-13/32") Oval hole (Base bolt M10) 3- 7/8"Punched hole (Connect wiring hole) 1-3/16"...
  • Page 11 MXZ-4B36NA Unit: inch 7-7/8" 19-11/16" 7-7/8" 9-27/32" 10-5/8" 2-U Shaped notched hole 1-3/8" (Base bolt M10) Air in Air in Drain hole 3- 1-5/16" Air out 2-(15/32" x 1-13/32") Oval hole (Base bolt M10) 3- 7/8"Punched hole (Connect wiring hole) 1-3/16"...

  • Page 12: Wiring Diagram

    WIRING DIAGRAM MXZ-2B20NA MXZ-2B20NA -...
  • Page 13 MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA...
  • Page 14 MXZ-3B24NA - MXZ-3B30NA - MXZ-4B36NA -...

  • Page 15: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM Unit: inch MXZ-2B20NA Service port Compressor R.V. coil Discharge Service temperature Refrigerant flow in cooling port thermistor RT62 Refrigerant flow in heating Oil separator Capillary tube O.D.0.10 x I.D.0.02 x 39.37 Stop valve with Indoor unit service port...
  • Page 16 Operating Range MXZ-2B20NA Indoor intake air temperature Outdoor intake air temperature Maximum 95°FDB, 71°FWB 115°FDB Cooling Minimum 67°FDB, 57°FWB 14°FDB Maximum 80°FDB, 67°FWB 75°FDB, 65°FWB Heating Minimum 70°FDB, 60°FWB 6°FDB, 5°FWB MAX. REFRIGERANT PIPING LENGTH & PIPE SIZE SELECTION MXZ-2B20NA Piping length each indoor unit (a, b) 82 ft.
  • Page 17 MXZ-3B24NA Unit: inch Service port MXZ-3B30NA Compressor Service Discharge port R.V. coil temperature High-pressure Refrigerant flow in cooling thermistor RT62 switch Refrigerant flow in heating Oil separator Capillary tube O.D.0.10 I.D.0.02 39.37 Stop valve Indoor unit 4-way valve (with service port) Indoor unit Muffler Indoor unit...
  • Page 18 Operating Range MXZ-3B24NA MXZ-3B30NA Indoor intake air temperature Outdoor intake air temperature Maximum 95°FDB, 71°FWB 115°FDB Cooling Minimum 67°FDB, 57°FWB 14°FDB Maximum 80°FDB, 67°FWB 75°FDB, 65°FWB Heating Minimum 70°FDB, 60°FWB 6°FDB, 5°FWB MAX. REFRIGERANT PIPING LENGTH & PIPE SIZE SELECTION MXZ-3B24NA MXZ-3B30NA Piping length each indoor unit (a, b, c) 82 ft.
  • Page 19 MXZ-4B36NA Unit: inch Service port Compressor Service port Discharge R.V. coil temperature High-pressure Refrigerant flow in cooling thermistor RT62 switch Refrigerant flow in heating Oil separator Capillary tube Indoor unit O.D.0.10 x I.D.0.02 x 39.37 Stop valve 4-way valve (with service port) Indoor unit Indoor unit Muffler...
  • Page 20 Operating Range MXZ-4B36NA Indoor intake air temperature Outdoor intake air temperature Maximum 95°FDB, 71°FWB 115°FDB Cooling Minimum 67°FDB, 57°FWB 14°FDB Maximum 80°FDB, 67°FWB 75°FDB, 65°FWB Heating Minimum 70°FDB, 60°FWB 6°FDB, 5°FWB MAX. REFRIGERANT PIPING LENGTH & PIPE SIZE SELECTION MXZ-4B36NA Piping length each indoor unit (a, b, c, d) 82 ft.

  • Page 21: Data

    DATA MXZ-2B20NA Model Indoor type Non-Duct (09+09) Duct (09+12) Item Unit Cooling Heating Cooling Heating Total Capacity But/h 18,000 22,000 20,000 22,000 – – – – – Input 1.44 1.65 2.19 1.78 Electrical Power supply (V,phase,Hz) 208/230, 1, 60 circuit Input 1.396...
  • Page 22 MXZ-3B30NA Model Indoor type Non-Duct (09+09+12) Duct (09+09+12) Item Unit Cooling Heating Cooling Heating Total Capacity But/h 28,400 28,600 27,400 27,600 – – – – – Input 3.12 2.15 3.33 2.22 Electrical Outdoor unit MXZ-3B30NA circuit Power supply (V,phase,Hz) 208/230,1,60 Input 3.047 2.081...
  • Page 23 8-1. OPERATING RANGE (1) POWER SUPPLY Guaranteed Voltage Model Rating MXZ-2B20NA MXZ-3B24NA Min. 198 V 208 V 230 V Max. 253 V 208/230 V 60 Hz 1 Outdoor unit MXZ-3B30NA MXZ-4B36NA (2) OPERATION Intake air Indoor Outdoor temperature Function Condition DB (°F)
  • Page 24 MXZ-2B20NA MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA The standard 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 pro- vided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.
  • Page 25 8-2. CAPACITY AND THE INPUT CURVES MXZ-2B20NA Cooling capacity (at Rated frequency) 11.2 13.5 14.4 Indoor intake air Wet-bulb 10.3 12.4 13.1 temperature(°F) 11.5 12.1 10.4 11.2 10.1 Outdoor intake air Dry-bulb temperature(°F) Total input (Cooling : at Rated frequency...
  • Page 26 MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA Cooling capacity (at Rated frequency) 11.2 13.5 13.1 16.7 19.3 Indoor intake air Wet-bulb 10.3 12.4 12.2 15.5 17.8 temperature(°F) 11.5 11.2 14.2 16.2 10.4 10.3 13.0 14.8 11.7 13.3 10.6 12.1 10.6 Outdoor intake air Dry-bulb temperature(°F) Total input (Cooling : at Rated frequency Indoor intake air Wet-bulb...
  • Page 27 8-3. CAPACITY AND INPUT CORRECTION BY MEANS OF INVERTER OUTPUT FREQUENCY (OUTDOOR UNIT: MXZ-2B20NA) 1. 06-class unit in single operation <COOL>Total input <COOL>Capacity <HEAT>Capacity <HEAT>Total input Frequency Frequency Frequency Frequency 2. 09-class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input...
  • Page 28 (OUTDOOR UNIT: MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA) 1. 06-class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input Frequency Frequency Frequency Frequency 2. 09-class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input Frequency Frequency Frequency Frequency 3. 12-class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Total input...
  • Page 29 8-4. OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT 1. 06-class unit in single operation (OUTDOOR UNIT: MXZ-2B20NA) (1) COOL operation Data is based on the condition of indoor humidity <How to work fixed-frequency operation> 1. Set emergency switch to COOL or HEAT. The switch is located Air flow speed: High on indoor unit.
  • Page 30 2. 09-class unit in single operation (OUTDOOR UNIT: MXZ-2B20NA) (1) COOL operation Data is based on the condition of indoor humidity <How to work fixed-frequency operation> 1. Set emergency switch to COOL or HEAT. The switch is located Air flow speed: High on indoor unit.
  • Page 31 3. 12-class unit in single operation (OUTDOOR UNIT: MXZ-2B20NA) (1) COOL operation Data is based on the condition of indoor humidity <How to work fixed-frequency operation> 1. Set emergency switch to COOL or HEAT. The switch is located Air flow speed: High on indoor unit.
  • Page 32 4. 15-class unit in single operation (OUTDOOR UNIT: MXZ-2B20NA) (1) COOL operation Data is based on the condition of indoor humidity <How to work fixed-frequency operation> 1. Set emergency switch to COOL or HEAT. The switch is located Air flow speed: High on indoor unit.
  • Page 33 5. 06-class unit in single operation (OUTDOOR UNIT : MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA) (1) COOL operation Data is based on the condition of indoor <How to work fixed-frequency operation> humidity 50% 1. Set emergency switch to COOL or HEAT. The switch is located Air flow speed : High on indoor unit.
  • Page 34 6. 09-class unit in single operation (OUTDOOR UNIT : MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA) (1) COOL operation Data is based on the condition of indoor <How to work fixed-frequency operation> humidity 50% 1. Set emergency switch to COOL or HEAT. The switch is located Air flow speed : High on indoor unit.
  • Page 35 7. 12-class unit in single operation (OUTDOOR UNIT : MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA) (1) COOL operation Data is based on the condition of indoor <How to work fixed-frequency operation> humidity 50% 1. Set emergency switch to COOL or HEAT. The switch is located Air flow speed : High on indoor unit.
  • Page 36 8. 15-class unit in single operation (OUTDOOR UNIT : MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA) (1) COOL operation Data is based on the condition of indoor <How to work fixed-frequency operation> humidity 50% 1. Set emergency switch to COOL or HEAT. The switch is located Air flow speed : High on indoor unit.
  • Page 37 9. 18-class unit in single operation (OUTDOOR UNIT : MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA) (1) COOL operation Data is based on the condition of indoor <How to work fixed-frequency operation> humidity 50% 1. Set emergency switch to COOL or HEAT. The switch is located Air flow speed : High on indoor unit.
  • Page 38 10. 24-class unit in single operation (OUTDOOR UNIT : MXZ-4B36NA) (1) COOL operation Data is based on the condition of indoor <How to work fixed-frequency operation> humidity 50% 1. Set emergency switch to COOL or HEAT. The switch is located Air flow speed : High on indoor unit.

  • Page 39: Actuator Control

    ACTUATOR CONTROL MXZ-2B20NA MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA Relation between main sensor and actuator Actuator Purpose Sensor Outdoor 4-way Compressor fan motor valve Discharge temperature thermistor Protection Indoor coil thermistor Defrosting Protection Defrost thermistor Defrosting Fin temperature thermistor Protection Ambient temperature thermistor...
  • Page 40 10-2. AUTO LINE CORRECTING <MXZ-3B24NA, MXZ-3B30NA, MXZ-4B36NA> Outdoor unit has an auto line correcting function which automatically detects and corrects improper wiring or piping. Improper wiring or piping can be automatically detected by pressing the piping/wiring correction switch (SW871). When improper wiring or piping is detected, wiring lines are corrected. This will be completed in about 10 to 15 minutes.

  • Page 41: Troubleshooting

    TROUBLESHOOTING MXZ-2B20NA MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA 11-1. CAUTIONS ON TROUBLESHOOTING 1. Before troubleshooting, check the following: 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for mis-wiring. 2. Take care of the following during servicing. 1) Before servicing the air conditioner, be sure to turn off the unit first with the remote controller, and then after confirm- ing the horizontal vane is closed, turn off the breaker and/or disconnect the power plug.
  • Page 42 2. Outdoor unit failure mode table LED indication The left lamp of Indoor/outdoor Abnormal point (Outdoor P.C. board) Condition Remedy OPERATION INDICATOR unit failure mode (Failure mode/protection) recall function lamp (Indoor unit) LED 1 LED 2 None (Normal) Lighting Lighting Outdoor power system 2-time flash Lighting Lighting...
  • Page 43 LED indication The left lamp of Indoor/outdoor Abnormal point (Outdoor P.C. board) Condition Remedy OPERATION INDICATOR unit failure mode (Failure mode/protection) recall function lamp(Indoor unit) LED 1 LED 2 Communication error 11-time flash Communication error occurs Lighting 6 times • Check the connecting between P.C.

  • Page 44: Troubleshooting Check Table

    P.C. board, noise filter P.C. board and power board. Outdoor electronic control P.C. board (Parts side) NOTE 1. The location of LED is illustrated at the right figure. Refer to 11-7.1. MXZ-2B20NA 2. LED is lighted during normal operation. LED2 LED1 The flashing frequency shows the number of times the LED blinks after every 2.5-second OFF.
  • Page 45 NOTE 1. The location of LED is illustrated at the right figure. Refer to 11-7.1. Outdoor electronic control P.C. board(Parts side) 2. LED is lighted during normal operation. MXZ-2B20NA The flashing frequency shows the number of times the LED blinks after every 2.5-second OFF. LED2 LED1 (Example) When the flashing frequency is “2”.
  • Page 46 11-5. TROUBLE CRITERION OF MAIN PARTS MXZ-2B20NA MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA Part name Check method and criterion Defrost thermistor (RT61) Fin temperature Measure the resistance with a tester. thermistor (RT64) Refer to 11-7. “Test point diagram and voltage”,1. “Outdoor electronic control P . C.
  • Page 47 11-6. TROUBLESHOOTING FLOW MXZ-2B20NA MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA Outdoor unit does not operate. Check of power supply Check the main power supply circuit for proper connections. Turn ON the power supply. Is there voltage of 208/230 V AC in the Check the power supply cable.

  • Page 48: Outdoor Unit Does Not Operate

    Is there any mis-wiring, poor contact, or wire Is serial signal error indicated 6 minutes later ? Correct them. disconnection of the indoor/outdoor MXZ-2B20NA connecting wire ? Outdoor electronic control P.C. board (Parts side) LED3 LED2 LED1 Blinking Turn OFF the power supply.

  • Page 49: Cooling

    The cooling operation or heating operation does not operate. Check of R.V. coil CN912 Noise filter P.C. board CN781 Outdoor electronic control P.C. board • When heating operation does not work. 1. Disconnect the lead wire leading to the compressor. 2.
  • Page 50 • When cooling, heat exchanger of non-operating indoor unit frosts. • When heating, non-operating indoor unit gets warm. Check of LEV Turn ON the power supply to the outdoor unit after checking LEV coil is mounted to the LEV body securely. Is "click - click"...

  • Page 51: Heating

    • When heating, room does not get warm. • When cooling, room does not get cool. How to check inverter/compressor Disconnect the terminal of the compressor. 3 minutes after turning ON the power supply, start EMERGENCY OPERATION. 1 • After the outdoor fan starts running, wait for 1 minute or more before measuring the voltage.
  • Page 52 • When thermistor is abnormal. Check of outdoor thermistors Replace the thermistor except RT64. Disconnect the connector in the following table and Abnormal In case that RT64 is abnormal, replace the measure the resistance of the thermistor to check outdoor power board since RT64 is combined whether the thermistor is normal or not.
  • Page 53 • When the operation frequency does not go up from the lowest frequency. Check of HPS MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA 1. Disconnect the connector CN681 in the electronic control P.C. board. 2. Check the resistance of HPS after 1 minute has passed since the outdoor unit power supply was turned OFF. Infinity Check the resistance between Replace HPS.
  • Page 54 Defrost thermistor (RT61) 1. Outdoor electronic control P.C. board Ambient temperature thermistor (RT65) Discharge temperature thermistor (RT62) Outdoor heat exchanger temperature MXZ-2B20NA thermistor (RT68) 86 104 122 140 158 176 194 212 230 248 Temperature (°F) Temperature (°F) LED 1...
  • Page 55 Defrost thermistor (RT61) Ambient temperature thermistor (RT65) MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA Outdoor heat exchanger Discharge temperature thermistor (RT62) temperature thermistor (RT68) 86 104 122 140 158 176 194 212 230 248 Temperature (°F) 86 104 Temperature (°F) LED 1 LED 2 LED 3 F931 FUSE...
  • Page 56 2. Noise filter P.C. board MXZ-2B20NA CN901 CN903 CN902 To electronic To power To power control P.C. board board board CN912 CN61 R.V. coil 208/230 V AC 208/230 V AC Output 208/230 V AC Output FUSE T6.3AL250V 208/230 V AC...
  • Page 57 3. Outdoor Power board Fin temperature thermistor (RT64) MXZ-2B20NA DM00N019 or DM00N095 32 50 68 86 104 122 140 158 176 Temperature (°F) Connect to the compressor Voltage among phases: 5 V to 180 V Connect to the earth 294-370 V DC...
  • Page 58 Fin temperature thermistor (RT64) MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA 32 50 68 86 104 122 140 158 176 Temperature (°F) Connect to the compressor Voltage among phases: 5 V to 180 V Connect to the earth 294-370 V DC Output (Red) Connect to the controller board (+)1-5(–): Signal transmission (To electronic control P.C.

  • Page 59: Disassembly Instructions

    Pull the terminal while pull out the terminal pushing the locking slowly. Locking lever lever. Connector 12-1. MXZ-2B20NA NOTE: Turn OFF the power supply before disassembly. OPERATING PROCEDURE PHOTOS 1. Removing the compressor Photo 1 Screws of the (1) Remove the screws of the top panel, and remove the top top panel panel.
  • Page 60 PHOTOS OPERATING PROCEDURE Photo 4 2. Removing the electronic control P.C. board (1) Remove the screws of the sub panel. (2) Remove the sub panel. (3) Disconnect all connectors and lead wires on the electronic control P.C. board. (4) Remove the electronic control P.C. board. Screw of the rear guard Screws of Photo 3...
  • Page 61 OPERATING PROCEDURE PHOTOS 4. Removing the 4-way valve Photo 7 (1) Remove the top panel (Photo 1). (2) Remove the service panel, the cabinet, and the back panel (Photo 1, 2, 3). 4 way valve (3) Recover gas from the refrigerant circuit. NOTE: Recover gas from the pipes until the pressure gauge shows 0 PSIG.
  • Page 62 12-2. MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA NOTE: Turn OFF the power supply before disassembly. Photo : MXZ-3B24NA OPERATING PROCEDURE PHOTOS Photo 1 Screws of the top panel 1. Removing the compressor (1) Remove the screws of the top panel, and remove the top panel.
  • Page 63 Photo : MXZ-3B24NA OPERATING PROCEDURE PHOTOS Screws of the outdoor fan motor 2. Removing the fan motor Photo 5 (1) Remove the top panel, the service panel, and the front panel (Photo 1, 2). (2) Disconnect the connectors CN931 and CN932 on the outdoor electronic control P.C.
  • Page 64 (3) Remove the screws of the reactor, and remove the reactor. Screws of the reactor HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN © Copyright 2009 MITSUBISHI ELECTRIC CO., LTD Distributed in Jan. 2011. No. OBH560 REVISED EDITION-D Distributed in Mar. 2010. No. OBH560 REVISED EDITION-C 6 Distributed in Feb.
  • Page 65 MXZ-2B20NA MXZ-2B20NA-1 COOLING...
  • Page 66 MXZ-2B20NA MXZ-2B20NA-1 HEATING...
  • Page 67 MXZ-3B24NA MXZ-3B24NA-1 COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Total 208V 230V Non Duct 6500 6500 2.94 2.65 5200 6500 ) ( 580 ) Non Duct 9000 9000 4.05 3.66 7200 9000 ) (...
  • Page 68 MXZ-3B24NA MXZ-3B24NA-1 COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Total 208V 230V 06+09+12 Non Duct Non Duct Non Duct 5200 7200 9600 22000 1680 8.33 7.53 12600 27000 ) ( 1000 - 2640 ) Non Duct Non Duct Duct...
  • Page 69 MXZ-3B24NA MXZ-3B24NA-1 HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Total 208V 230V Non Duct 7800 7800 3.24 2.93 6800 14400 - 1460 ) Non Duct 10900 10900 1040 5.26 4.76 8600 15400...
  • Page 70 MXZ-3B24NA MXZ-3B24NA-1 HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Total 208V 230V 06+09+12 Non Duct Non Duct Non Duct 5900 8300 10800 25000 1660 8.23 7.44 11400 30600 ) ( - 2480 ) Non Duct Non Duct Duct...
  • Page 71 MXZ-3B30NA MXZ-3B30NA-1 COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Total 208V 230V Non Duct 6500 6500 2.94 2.65 5200 6500 ) ( 580 ) Non Duct 9000 9000 4.05 3.66 7200 9000 ) (...
  • Page 72 MXZ-3B30NA MXZ-3B30NA-1 COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Total 208V 230V 15+15 Non Duct Non Duct 13000 13000 26000 2800 13.88 12.55 12000 26000 ) ( - 2800 ) Non Duct Duct 13000...
  • Page 73 MXZ-3B30NA MXZ-3B30NA-1 COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Total 208V 230V 09+09+12 Non Duct Non Duct Non Duct 8500 8500 11400 28400 3120 15.46 13.98 12600 28400 ) ( 1000 - 3120 ) Non Duct...
  • Page 74 MXZ-3B30NA MXZ-3B30NA-1 HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Total 208V 230V Non Duct 7800 7800 3.24 2.93 6800 14400 - 1460 ) Non Duct 10900 10900 1040 5.26 4.76 8600 15400...
  • Page 75 MXZ-3B30NA MXZ-3B30NA-1 HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Total 208V 230V 15+15 Non Duct Non Duct 13500 13500 27000 2120 10.51 9.50 11000 35000 - 2800 ) Non Duct Duct 13500 13500...
  • Page 76 MXZ-3B30NA MXZ-3B30NA-1 HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Total 208V 230V 09+09+12 Non Duct Non Duct Non Duct 8600 8600 11400 28600 2150 10.66 9.64 11400 36000 ) ( - 2820 ) Non Duct Non Duct...
  • Page 77 MXZ-4B36NA COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V Non Duct 6500 6500 2.94 2.65 5200 6500 ) ( 580 ) Non Duct 9000 9000 4.05 3.66 7200...
  • Page 78 MXZ-4B36NA COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 06+06+06 Non Duct Non Duct Non Duct 6500 6500 6500 19500 1600 7.93 7.17 12600 19500 ) ( 1000 - 1600 ) 06+06+09 Non Duct Non Duct Non Duct...
  • Page 79 MXZ-4B36NA COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 09+09+15 Non Duct Non Duct Non Duct 9000 9000 14000 32000 3500 17.35 15.69 12600 32100 ) ( 1000 - 3500 ) Non Duct Non Duct Duct...
  • Page 80 MXZ-4B36NA COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 12+12+12 Non Duct Non Duct Non Duct 10700 10700 10700 32100 3500 17.35 15.69 12600 32100 ) ( 1000 - 3500 ) Non Duct Non Duct Duct...
  • Page 81 MXZ-4B36NA COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 06+09+09+12 Non Duct Non Duct Non Duct Non Duct 6400 8700 8700 11600 35400 3760 18.26 16.51 12600 36400 ) ( 1000...
  • Page 82 MXZ-4B36NA HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V Non Duct 7800 7800 3.24 2.93 6800 14400 - 1460 ) Non Duct 10900 10900 1040 5.26 4.76 8600...
  • Page 83 MXZ-4B36NA HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 06+06+06 Non Duct Non Duct Non Duct 7800 7800 7800 23400 1750 8.67 7.84 11400 36000 ) ( - 2820 ) 06+06+09 Non Duct Non Duct Non Duct...
  • Page 84 MXZ-4B36NA HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 09+09+15 Non Duct Non Duct Non Duct 8900 8900 14600 32400 2640 13.08 11.83 11400 36000 - 2820 ) Non Duct Non Duct Duct...
  • Page 85 MXZ-4B36NA HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 12+12+12 Non Duct Non Duct Non Duct 10800 10800 10800 32400 2640 13.08 11.83 11400 36000 - 2820 ) Non Duct Non Duct Duct...
  • Page 86 MXZ-4B36NA HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 06+09+09+12 Non Duct Non Duct Non Duct Non Duct 6400 8900 8900 11800 36000 3020 14.67 13.26 11400 43000 ) (...
  • Page 87 MXZ-4B36NA-1 COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V Non Duct 6500 6500 2.94 2.65 5200 6500 ) ( 580 ) Non Duct 9000 9000 4.05 3.66 7200...
  • Page 88 MXZ-4B36NA-1 COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 06+06+06 Non Duct Non Duct Non Duct 6500 6500 6500 19500 1600 7.93 7.17 12600 19500 ) ( 1000 - 1600 ) 06+06+09 Non Duct Non Duct Non Duct...
  • Page 89 MXZ-4B36NA-1 COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 09+09+15 Non Duct Non Duct Non Duct 9000 9000 14000 32000 3500 17.35 15.69 12600 32100 ) ( 1000 - 3500 ) Non Duct Non Duct Duct...
  • Page 90 MXZ-4B36NA-1 COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 12+12+12 Non Duct Non Duct Non Duct 10700 10700 10700 32100 3500 17.35 15.69 12600 32100 ) ( 1000 - 3500 ) Non Duct Non Duct Duct...
  • Page 91 MXZ-4B36NA-1 COOLING Indoor units Indoor type Cooling capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 06+09+09+12 Non Duct Non Duct Non Duct Non Duct 6400 8700 8700 11600 35400 3760 18.26 16.51 12600 36400 ) ( 1000...
  • Page 92 MXZ-4B36NA-1 HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V Non Duct 7800 7800 3.24 2.93 6800 14400 - 1460 ) Non Duct 10900 10900 1040 5.26 4.76 8600...
  • Page 93 MXZ-4B36NA-1 HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 06+06+06 Non Duct Non Duct Non Duct 7800 7800 7800 23400 1750 8.67 7.84 11400 36000 ) ( - 2820 ) 06+06+09 Non Duct Non Duct Non Duct...
  • Page 94 MXZ-4B36NA-1 HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 09+09+15 Non Duct Non Duct Non Duct 8900 8900 14600 32400 2640 13.08 11.83 11400 36000 - 2820 ) Non Duct Non Duct Duct...
  • Page 95 MXZ-4B36NA-1 HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 12+12+12 Non Duct Non Duct Non Duct 10800 10800 10800 32400 2640 13.08 11.83 11400 36000 - 2820 ) Non Duct Non Duct Duct...
  • Page 96 MXZ-4B36NA-1 HEATING Indoor units Indoor type Heating capacity(BTU/h) Power consumption Current(A) P/F(%) combination Unit A Unit B Unit C Unit D Total 208V 230V 06+09+09+12 Non Duct Non Duct Non Duct Non Duct 6400 8900 8900 11800 36000 3020 14.67 13.26 11400 43000 ) (...

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Mr. slim mxz-3b24naMr. slim mxz-3b30naMr. slim mxz-4b36naMsz-a·na seriesMsz-fd·na seriesMsz-fe·na series ... Show all

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