Mitsubishi Electric MUX-19TV -E1 Service Manual
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Mitsubishi Electric MUX-19TV -E1 Service Manual

Mitsubishi Electric MUX-19TV -E1 Service Manual

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SPLIT-TYPE,AIR CONDITIONERS
SERVICE MANUAL
Multi system type
Models
MUX-19TV -
MUX-20TV -
MUX-25TV -
MUX-19TV -
E1
MUX-20TV -
E1
MUX-25TV -
E1
This manual describes technical data of outdoor unit.
For indoor unit refer to the service manuals No.OB227 REVISED EDITION-B and OB252 REVISED EDITION-A of corre-
sponding models.
All manuals and user guides at all-guides.com
E1
E1
E1
CONTENTS
10. TROUBLESHOOTING······································26
11. DISASSEMBLY INSTRUCTIONS·····················32
12. PARTS LIST······················································35
13. OPTIONAL PARTS···········································37
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················2
CORRESPONDENCE TABLE ···························3
4. SPECIFICATION·················································3
5. NOISE CRITERIA CURVES ······························ 6
6. OUTLINES AND DIMENSIONS ························ 7
7. WIRING DIAGRAM ············································9
8. REFRIGERANT SYSTEM DIAGRAM ··············10
9. PERFORMANCE CURVES ······························14
No. OB284

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  • Page 1: Table Of Contents

    All manuals and user guides at all-guides.com SPLIT-TYPE,AIR CONDITIONERS No. OB284 SERVICE MANUAL Multi system type Models MUX-19TV - MUX-20TV - MUX-25TV - CONTENTS 1. TECHNICAL CHANGES ····································2 2. PART NAMES AND FUNCTIONS······················2 3. INDOOR/OUTDOOR CORRESPONDENCE TABLE ···························3 4. SPECIFICATION·················································3 5.

  • Page 2: Technical Changes

    All manuals and user guides at all-guides.com TECHNICAL CHANGES MUX-19TV - MUX-20TV - MUX-25TV - New models PART NAMES AND FUNCTIONS OUTDOOR UNIT MUX-19TV - MUX-20TV - MUX-25TV - Air inlet (Back and side) Piping Drainage hose Air outlet...

  • Page 3: Indoor/Outdoor

    All manuals and user guides at all-guides.com INDOOR / OUTDOOR CORRESPONDENCE TABLE OUTDOOR UNIT MUX-19TV- MUX-20TV- MUX-25TV- A:07, B:12 A:09, B:09, C:09 A:12, B:12 There is no combination other than this table. SPECIFICATION Outdoor model MUX-19TV - Single phase Outdoor unit power supply 230V, 50Hz Opetate 1 unit Opetate 1 unit...
  • Page 4 All manuals and user guides at all-guides.com Outdoor model MUX-20TV - Single phase Outdoor unit power supply 230V, 50Hz Opetate 1 unit Opetate 1 unit Opetate 2 unit Opetate 2 unit Opetate 3 unit Indoor unit No. B or C A+B or A+C A+B+C Capacity...
  • Page 5 All manuals and user guides at all-guides.com Outdoor model MUX-25TV - Single phase Outdoor unit power supply 230V, 50Hz Opetate 1 unit Opetate 2 unit Indoor unit No. A or B Capacity 3.5 2 Dehumidification 1.6 2 Outdoor air flow High:2,760 / Low:1,920 K /h Power outlet...

  • Page 6: Noise Criteria Curves

    All manuals and user guides at all-guides.com NOISE CRITERIA CURVES MUX-19TV - MUX-25TV - SPL(dB LINE SPEED SPL(dB LINE SPEED MUX-20TV - High High Test conditions. Test conditions. Cooling :DB35: WB24: Cooling :DB35: WB24: NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30...

  • Page 7: Outlines And Dimensions

    All manuals and user guides at all-guides.com OUTLINES AND DIMENSIONS Unit: mm OUTDOOR UNIT MUX-19TV- Open as a rule 500mm or more if the front and both sides are open 100mm or more 200mm or more if 100mm or more Drainage 272.9 438.4...
  • Page 8 All manuals and user guides at all-guides.com Unit: mm OUTDOOR UNIT MUX-25TV- Open as a rule 500mm or more if the front and both sides are open 100mm or more 200mm or more if 100mm or more Drainage 272.9 438.4 there are obstacles 3hoies {33 Air in...

  • Page 9: Wiring Diagram

    All manuals and user guides at all-guides.com WIRING DIAGRAM MUX-19TV - MUX-25TV - MODELS WIRING DIAGRAM OUTDOOR UNIT POWER SUPPLY 230V 50Hz GRN/YLW CIRCUIT BREAKER OUTDOOR CONTROL PC BOARD CN90 X521 TO INDOOR X522 UNIT A CONNECTING TO INDOOR NR61 X522 X521 UNIT B...

  • Page 10: Refrigerant System Diagram

    All manuals and user guides at all-guides.com REFRIGERANT SYSTEM DIAGRAM MSC-07RV- Unit: mm MUX-19TV- MSC-12RV- INDOOR UNIT OUTDOOR UNIT Room temperature Refrigerant pipe thermistor {12.7 RT11 (With insulation) Indoor Stop valve heat with service port UNIT A exchanger MSC-12RV Flared connection Indoor coil Compressor(MC1) Stop valve...
  • Page 11 All manuals and user guides at all-guides.com Unit: mm MSC-09RV- MUX-20TV- INDOOR UNIT OUTDOOR UNIT Room temperature Refrigerant pipe thermistor {9.52 RT11 (With insulation) Indoor Stop valve heat with service port UNIT A exchanger MSC-09RV Flared connection Indoor coil Compressor(MC1) Stop valve thermistor RT12...
  • Page 12 All manuals and user guides at all-guides.com MUX-20TV- MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE Indoor unit A Indoor unit C Indoor unit B MSC-09RV - E3 MSC-09RV - E3 MSC-09RV - E3 Outdoor unit MUX-20TV - E1 UNIT No. Pipe length Height difference (H) No.
  • Page 13 All manuals and user guides at all-guides.com Unit: mm MSC-12RV- MUX-25TV- INDOOR UNIT OUTDOOR UNIT Room Refrigerant pipe temperature {12.7 thermistor (With insulation) RT11 Indoor Stop valve heat with service port UNIT A exchanger MSC-12RV Flared connection Indoor coil Compressor(MC1) Stop valve thermistor RT12...

  • Page 14: Performance Curves

    All manuals and user guides at all-guides.com PERFORMANCE CURVES MSC-07RV - MUX-19TV - MSC-09RV - MUX-20TV - MSC-12RV - MUX-25TV - 9-1-1.CAPACITY AND THE INPUT CURVES (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT) 11.6 10.2 11.2 11.6 10.6 10.2 10.6 9-1-2.OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT COOL operation Both indoor and outdoor unit are under same temperature/humidity condition.
  • Page 15 All manuals and user guides at all-guides.com MUX-20TV- Single operation (Unit A) Single operation (Unit B or C) (kgf/F•G)(MPa•G) (kgf/F•G)(MPa•G)
  • Page 16 All manuals and user guides at all-guides.com PERFORMANCE DATA COOL operation (230V) MSC-07RV - (Single) MUX-19TV - CAPACITY : 2.2 kW INPUT(Total=Indoor+Outdoor) : 780 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 2.59...
  • Page 17 All manuals and user guides at all-guides.com PERFORMANCE DATA COOL operation (230V) MSC-07RV - (Single) MUX-19TV - CAPACITY : 2.2 kW INPUT(Total=Indoor+Outdoor) : 780 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 2.16 1.21...
  • Page 18 All manuals and user guides at all-guides.com PERFORMANCE DATA COOL operation (230V) MSC-12RV - (Single) MUX-19TV - CAPACITY : 3.5 kW INPUT(Total=Indoor+Outdoor) : 1320W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 1056 3.94...
  • Page 19 All manuals and user guides at all-guides.com PERFORMANCE DATA COOL operation (230V) MSC-12RV - (Single) MUX-19TV - CAPACITY : 3.5 kW INPUT(Total=Indoor+Outdoor) : 1320W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 3.43 1.68 0.49...
  • Page 20 All manuals and user guides at all-guides.com PERFORMANCE DATA COOL operation (230V) MSC-09RV - (Single Room A) MUX-20TV - CAPACITY : 2.5 kW INPUT(Total=Indoor+Outdoor) : 810W SHF : 0.70 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 2.94...
  • Page 21 All manuals and user guides at all-guides.com PERFORMANCE DATA COOL operation (230V) MSC-09RV - (Single Room A) MUX-20TV - CAPACITY : 2.5 kW INPUT(Total=Indoor+Outdoor) : 810W SHF : 0.70 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 1.17 2.08...
  • Page 22 All manuals and user guides at all-guides.com PERFORMANCE DATA COOL operation (230V) MSC-09RV - (Single Room B or C) : MUX-20TV - CAPACITY : 2.7 kW INPUT(Total=Indoor+Outdoor) : 1000W SHF : 0.69 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT...
  • Page 23 All manuals and user guides at all-guides.com PERFORMANCE DATA COOL operation (230V) MSC-09RV - (Single Room B or C) : MUX-20TV - CAPACITY : 2.7 kW INPUT(Total=Indoor+Outdoor) : 1000W SHF : 0.69 OUTDOOR DB(;) INDOOR INDOOR SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT DB(;) WB(;)
  • Page 24 All manuals and user guides at all-guides.com PERFORMANCE DATA COOL operation (230V) MSC-12RV - (Single) MUX-25TV - CAPACITY : 3.5 kW INPUT(Total=Indoor+Outdoor) : 1390W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 1279 4.11...
  • Page 25 All manuals and user guides at all-guides.com PERFORMANCE DATA COOL operation (230V) MSC-12RV - (Single) MUX-25TV - CAPACITY : 3.5 kW INPUT(Total=Indoor+Outdoor) : 1390W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 3.43 1.68 0.49...

  • Page 26: Troubleshooting

    All manuals and user guides at all-guides.com TROUBLESHOOTING MUX-19TV - MUX-20TV - MUX-25TV - 10-1. Cautions on troubleshooting 1. Before troubleshooting, check the following: 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for mis-wiring. 2. Take care the following during servicing. 1) Before servicing the air conditioner, be sure to first turn off the remote controller to stop the unit, and then after con- firming the horizontal vane is closed, turn off the breaker and / or disconnect the power plug.
  • Page 27 All manuals and user guides at all-guides.com 10-3. Trouble criterion of main parts Part name Check method and criterion Figure Measure the resistance between the terminals with a tester. (Coil wiring temperature-10°C ~ 40°C) Normal Abnormal Compressor MUX-19TV- MUX-20TV- MUX-25TV- RH220VHAT RH135VHAT RH140VHAT RH174VHAT RH231VHAT...
  • Page 28 All manuals and user guides at all-guides.com Check of remote controller and receiver P.C. board Indoor unit operates by pressing the EMERGENCY OPERATION switch, but does not operate with the remote controller. wCheck the remote controller is exclusive for this air conditioner. wReplace the receiver P.C.
  • Page 29 All manuals and user guides at all-guides.com Check of outdoor unit Compressor and outdoor fan do not operate. Start Check the voltage of terminal block outdoor unit L - N. AC220~240V between Check the outdoor power supply and connection. Reconfirmed Check the voltage of terminal block of indoor unit.
  • Page 30 All manuals and user guides at all-guides.com Compressor does not operate. Start Turn OFF power supply (indoor / out- door unit). Replace the compressor. Is the connection of Check the compressor. Check the outdoor control Compressor wiring from terminal block See page 27.
  • Page 31 All manuals and user guides at all-guides.com TEST POINT DIAGRAM AND VOLTAGE MUX-19TV - MUX-20TV - MUX-25TV - Outdoor control P.C. board Solenoid coil 21R3 Fan capacitor Solenoid coil 21RB Solenoid coil 21R4 Fan capacitor Fan motor From indoor To compressor unit A 12V DC 1+, 3–...

  • Page 32: Disassembly Instructions

    All manuals and user guides at all-guides.com DISASSEMBLY INSTRUCTIONS <"Terminal with lock mechanism" Detaching points> In case of terminal with lock mechanism detach the terminal as shown below. 1Slide the sleeve. 1Hold the sleeve, and 2Pull the terminal while pull out the terminal pushing the locking slowly.
  • Page 33 All manuals and user guides at all-guides.com OPERATING PROCEDURE PHOTOS 2. Removing the relay panel. Photo 4 (1) Remove the cabinet. (Refer to 1) (2) Disconnect the following connectors. . Outdoor fan motor Solemoid coil connector . Solenoid coil (21RB, 21R3, 21R4) <Only MUX-20> Outdoor fan motor (21RB, 21R3, 21R4) set screws...
  • Page 34 All manuals and user guides at all-guides.com OPERATING PROCEDURE PHOTOS 5. Removing the compressor. (A,B) Photo 7 (1) Remove the cabinet. (Refer to 1) (2) Remove the relay panel. (Refer to 2) (3) Remove the terminal cover. (4) Pull out lead from the compressor. Terminal cover (5) Remove the suction pipe welded section and discharge Suction pipe...

  • Page 35: Parts List

    All manuals and user guides at all-guides.com PARTS LIST 12-1. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS MUX-19TV - MUX-20TV - MUX-25TV - 12-1. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS Part numbers that are circled is not shown in the illustration. Symbol Q'ty / unit in Wiring...
  • Page 36 All manuals and user guides at all-guides.com 12-2. OUTDOOR UNIT STRUCTURAL PARTS MUX-19TV - MUX-20TV - MUX-25TV - Part numbers that are circled is not shown in the illustration. Symbol Q'ty / unit in Wiring Parts No. Parts Name Remarks MUX-19TV- MUX-20TV- MUX-25TV-...

  • Page 37: Optional Parts

    All manuals and user guides at all-guides.com OPTIONAL PARTS 13-1. AIR CLEANING FILTER AIR CLEANING FILTER removes fine dust of 0.01 micron from air by means of static electricity. Normal life of AIR CLEANING FILTER is 3 months. However, when it becomes dirty, replace it as soon as possible. Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet.
  • Page 38 All manuals and user guides at all-guides.com...
  • Page 39 All manuals and user guides at all-guides.com...
  • Page 40 All manuals and user guides at all-guides.com HEAD OFFICE: MITSUBISHI DENKI BLDG.,2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN C C Copyright 2001 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD. New publication, effective Apr. 2001 Distributed in Apr. 2001. No.OB284 248 Specifications subject to change without notice.

This manual is also suitable for:

Mux-20tv -e1Mux-25tv -e1

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