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Mitsubishi Electric MUX-19TV - E1 User Manual

Mitsubishi Electric MUX-19TV - E1
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SERVICE MANUAL
SPLIT-TYPE,AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················2
3. INDOOR/OUTDOOR
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
10. TROUBLESHOOTING······································26
11. DISASSEMBLY INSTRUCTIONS·····················32
12. PARTS LIST······················································35
13. OPTIONAL PARTS···········································37
Multi system type
Models
MUX-19TV -
MUX-20TV -
MUX-25TV -
E1
E1
E1
No. OB284
MUX-19TV -
MUX-20TV -
MUX-25TV -
E1
E1
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.
OB284-1.qxp 01.4.26 8:58 PM Page 1
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Mitsubishi Electric MUX-19TV - E1 Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMUX-19TV - E1
CategoryAir Conditioner
LanguageEnglish

Summary

1 TECHNICAL CHANGES

New Models Mentioned

Mentions new models of the outdoor unit.

2 PART NAMES AND FUNCTIONS

Outdoor Unit Components Identification

Identifies and illustrates the parts of the outdoor unit.

3 INDOOR / OUTDOOR CORRESPONDENCE TABLE

Unit Combination Compatibility

Details combinations between indoor and outdoor units.

4 SPECIFICATION

MUX-19TV Outdoor Specification

Lists specifications for the MUX-19TV outdoor model.

MUX-20TV Outdoor Specification

Lists specifications for the MUX-20TV outdoor model.

MUX-25TV Outdoor Specification

Lists specifications for the MUX-25TV outdoor model.

5 NOISE CRITERIA CURVES

Noise Curves: MUX-19TV & MUX-20TV

Presents noise criteria curves for MUX-19TV and MUX-20TV models.

Noise Curves: MUX-25TV

Presents noise criteria curves for MUX-25TV model.

6 OUTLINES AND DIMENSIONS

MUX-19TV Dimensions and Clearances

Shows dimensions and installation clearances for MUX-19TV.

MUX-20TV Dimensions and Clearances

Shows dimensions and installation clearances for MUX-20TV.

MUX-25TV Dimensions and Clearances

Shows dimensions and installation clearances for MUX-25TV.

7 WIRING DIAGRAMS

MUX-19TV/MUX-25TV Wiring Diagram

Electrical wiring diagram for MUX-19TV and MUX-25TV outdoor units.

MUX-20TV Wiring Diagram

Electrical wiring diagram for MUX-20TV outdoor unit.

8 REFRIGERANT SYSTEM

MUX-19TV Refrigerant System Diagram

Illustrates the refrigerant system for MUX-19TV with indoor units.

Refrigerant Piping Specifications (General)

Details general maximum piping length, height differences, and charge.

MUX-20TV Refrigerant System Diagram

Illustrates the refrigerant system for MUX-20TV with indoor units.

MUX-20TV Refrigerant Piping Specifications

Details maximum piping length, height differences, and charge for MUX-20TV.

MUX-25TV Refrigerant System Diagram

Illustrates the refrigerant system for MUX-25TV with indoor units.

MUX-25TV Refrigerant Piping Specifications

Details maximum piping length, height differences, and charge for MUX-25TV.

9 PERFORMANCE CURVES

Capacity & Input Curves (Single Unit)

Shows capacity and input curves for single unit operation.

Cooling: Low Pressure & Current Curves

Presents outdoor low pressure and current curves for cooling.

MUX-20TV Cooling Performance Curves

Presents cooling performance curves for MUX-20TV.

10 PERFORMANCE DATA

MUX-19TV Cooling Performance Data

Cooling performance data for MUX-19TV, covering various conditions.

MUX-20TV Cooling Performance Data

Cooling performance data for MUX-20TV, covering various conditions.

MUX-25TV Cooling Performance Data

Cooling performance data for MUX-25TV, covering various conditions.

11 TROUBLESHOOTING

Troubleshooting Precautions

Important safety and operational precautions before troubleshooting.

Troubleshooting Flowcharts

Diagnostic flowcharts for common operational issues.

Trouble Criteria for Main Parts

Criteria for testing and diagnosing key components like compressor and fan motor.

Indoor Fan Motor Troubleshooting

Steps to diagnose and resolve indoor fan motor failures.

Remote Control & Receiver Troubleshooting

Steps to diagnose issues with remote control operation and receiver board.

Indoor Control Board Troubleshooting

Steps to diagnose issues with the indoor electronic control P.C. board.

Outdoor Unit Troubleshooting

Flowchart for diagnosing outdoor unit operational failures.

Compressor Operation Issues

Troubleshooting steps for a non-operating compressor.

Outdoor Fan Operation Issues

Troubleshooting steps for a non-operating outdoor fan motor.

12 TEST POINT DIAGRAM AND VOLTAGE

Outdoor Control P.C. Board Layout

Diagram showing test points and voltage locations on the outdoor control P.C. board.

13 DISASSEMBLY INSTRUCTIONS

Terminal Lock Mechanism Detachment

Instructions for detaching terminals with a lock mechanism.

Outdoor Unit Cabinet Removal

Steps to remove the outdoor unit's cabinet panels.

Relay Panel and Propeller Removal

Procedures for removing the relay panel and propeller.

Outdoor Fan Motor Removal

Steps to remove the outdoor fan motor.

Compressor Removal (Units A,B)

Steps to remove the compressor for units A and B.

Compressor Removal (Unit C)

Steps to remove the compressor for unit C.

14 PARTS LIST

Outdoor Unit Functional & Electrical Parts

Lists functional and electrical components of the outdoor unit.

Outdoor Unit Structural Parts

Lists structural components of the outdoor unit.

15 OPTIONAL PARTS

Air Cleaning Filter Details

Details the air cleaning filter, its function, and maintenance.

Deodorizing Filter Details

Details the deodorizing filter, its function, and cleaning instructions.

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