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Mitsubishi Electric MXZ-5A100VA User Manual

Mitsubishi Electric MXZ-5A100VA
192 pages
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SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ··································· 2
2. PART NAMES AND FUNCTIONS ····················· 8
3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ························ 10
4. INDOOR UNITS COMBINATION ···················· 14
5. SPECIFICATION ·············································· 61
6. NOISE CRITERIA CURVES ···························· 66
7. OUTLINES AND DIMENSIONS ······················ 68
8. WIRING DIAGRAM ·········································· 75
9. REFRIGERANT SYSTEM DIAGRAM ············· 87
10. PERFORMANCE CURVES ····························· 97
11. ACTUATOR CONTROL ··································115
12. SERVICE FUNCTIONS ···································116
13. TROUBLESHOOTING ··································· 120
14. DISASSEMBLY INSTRUCTIONS ·················· 145
15. PARTS LIST ··················································· 160
16. RoHS PARTS LIST ········································ 172
17. OPTIONAL PARTS ······················ BACK COVER
Models
MXZ-2A30VA -
E1
MXZ-4A71VA -
E2
MXZ-2A30VA -
E2
MXZ-4A71VA -
E3
MXZ-2A40VA -
E1
MXZ-4A71VA -
E4
MXZ-2A40VA -
E2
MXZ-4A71VA -
E5
MXZ-2A52VA -
E1
MXZ-4A71VA -
E6
MXZ-2A52VA -
E2
MXZ-4A71VA -
E7
MXZ-3A54VA -
E1
MXZ-4A80VA -
E1
MXZ-3A54VA -
E2
MXZ-4A80VA -
E2
MXZ-3A54VA -
E3
MXZ-5A100VA -
E1
MXZ-3A54VA -
E4
MXZ-3A54VA -
E5
MXZ-3A54VA -
E6
MXZ-3A54VA -
E7
MXZ-4A71VA -
E1
No. OB377
REVISED EDITION-H
HFC
utilized
R410A
SPLIT-TYPE AIR CONDITIONERS
MXZ-4A80VA-
E1
Please void OB377 REVISED EDITION-G.
OUTDOOR UNIT
Revision H:
• Indoor units combinations for 42 class
have been added.
MXZ-3A54VA-
E7
and MXZ-4A71VA-
E7
have been added.
NOTE:
• RoHS compliant products have <G> mark on the spec
name plate.
For servicing of RoHS compliant products, refer to the
RoHS Parts List.
Indoor unit service manual
MSZ-FA•VA Series (OB371)
MSZ-GA•VA Series (OB378, OB388)
MSZ-CB•VA Series (OB441)
MSZ-GC•VA Series (OBH468)
MSZ-GE•VA Series (OBH515)
MSZ-FD•VA Series (OBH488)

Other manuals for Mitsubishi Electric MXZ-5A100VA

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Mitsubishi Electric MXZ-5A100VA Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMXZ-5A100VA
CategoryAir Conditioner
LanguageEnglish

Summary

Technical Changes

Model Revision Summaries

Lists specific updates and modifications made to various models, categorized by revision letter.

R410A Refrigerant Information

Information for Air Conditioner with R410A Refrigerant

Details about using R410A refrigerant, including pressure and contamination precautions.

Tools for R410A Refrigerant

Lists necessary tools for R410A systems and their compatibility with R22 tools.

Part Names and Functions

MXZ-2A Series Outdoor Unit Parts

Details on the structural parts and functions of MXZ-2A series outdoor units.

MXZ-3A/4A Series Outdoor Unit Parts

Details on the structural parts and functions of MXZ-3A/4A series outdoor units.

MXZ-4A80VA / MXZ-5A100VA Outdoor Unit Parts

Details on the structural parts and functions of MXZ-4A80VA and MXZ-5A100VA outdoor units.

Outdoor Unit Accessories

Lists and illustrates the standard accessories included with the outdoor units.

Indoor/Outdoor Correspondence Table

Indoor Units Combination

MXZ-2A Series Combinations

Cooling/heating capacities and electrical data for MXZ-2A series unit combinations.

MXZ-3A54VA Combinations

Cooling/heating capacities and electrical data for MXZ-3A54VA unit combinations.

MXZ-4A71VA Combinations

Cooling/heating capacities and electrical data for MXZ-4A71VA unit combinations.

MXZ-4A80VA Combinations

Cooling/heating capacities and electrical data for MXZ-4A80VA unit combinations.

MXZ-5A100VA Combinations

Cooling/heating capacities and electrical data for MXZ-5A100VA unit combinations.

Specification

MXZ-2A30VA Specifications

Detailed specifications for the MXZ-2A30VA outdoor unit, including electrical data and performance conditions.

MXZ-2A40VA Specifications

Detailed specifications for the MXZ-2A40VA outdoor unit, including electrical data and performance conditions.

MXZ-2A52VA Specifications

Detailed specifications for the MXZ-2A52VA outdoor unit, including electrical data and performance conditions.

MXZ-3A54VA Specifications

Detailed specifications for the MXZ-3A54VA outdoor unit, including electrical data and performance conditions.

MXZ-4A71VA Specifications

Detailed specifications for the MXZ-4A71VA outdoor unit, including electrical data and performance conditions.

MXZ-4A80VA Specifications

Detailed specifications for the MXZ-4A80VA outdoor unit, including electrical data and performance conditions.

MXZ-5A100VA Specifications

Detailed specifications for the MXZ-5A100VA outdoor unit, including electrical data and performance conditions.

Test Conditions

Specifies the indoor and outdoor temperature and humidity conditions used for testing.

Noise Criteria Curves

MXZ-2A Series Noise Curves

Noise criteria curves showing octave band sound pressure levels for different frequencies.

MXZ-3A54VA / MXZ-4A71VA Noise Curves

Noise criteria curves showing octave band sound pressure levels for different frequencies.

MXZ-4A80VA Noise Curves

Noise criteria curves showing octave band sound pressure levels for different frequencies.

MXZ-5A100VA Noise Curves

Noise criteria curves showing octave band sound pressure levels for different frequencies.

Outlines and Dimensions

MXZ-2A Series Outdoor Unit Dimensions

Diagrams and dimensions for MXZ-2A series outdoor units, including required installation space.

MXZ-3A54VA Outdoor Unit Dimensions

Diagrams and dimensions for MXZ-3A54VA outdoor units, including required installation space.

MXZ-4A71VA Outdoor Unit Dimensions

Diagrams and dimensions for MXZ-4A71VA outdoor units, including required installation space.

MXZ-4A80VA Outdoor Unit Dimensions

Diagrams and dimensions for MXZ-4A80VA outdoor units, including required installation space.

MXZ-4A80VA / MXZ-5A100VA Outdoor Unit Dimensions

Diagrams and dimensions for MXZ-4A80VA and MXZ-5A100VA outdoor units, including required installation space.

Wiring Diagram

MXZ-2A Series Wiring Diagram

Wiring diagram for MXZ-2A series outdoor units, showing component connections and terminal identifiers.

MXZ-3A54VA Wiring Diagram

Wiring diagram for MXZ-3A54VA outdoor units, showing component connections and terminal identifiers.

MXZ-4A71VA Wiring Diagram

Wiring diagram for MXZ-4A71VA outdoor units, showing component connections and terminal identifiers.

MXZ-4A80VA Wiring Diagram

Wiring diagram for MXZ-4A80VA outdoor units, showing component connections and terminal identifiers.

MXZ-5A100VA Wiring Diagram

Wiring diagram for MXZ-5A100VA outdoor units, showing component connections and terminal identifiers.

Refrigerant System Diagram

MXZ-2A30VA Refrigerant Diagram

Diagram showing the refrigerant circuit, components, and piping for the MXZ-2A30VA model.

MXZ-2A40VA / MXZ-2A52VA Refrigerant Diagram

Diagram showing the refrigerant circuit, components, and piping for MXZ-2A40VA/2A52VA models.

MXZ-3A54VA Refrigerant Diagram

Diagram showing the refrigerant circuit, components, and piping for the MXZ-3A54VA model.

MXZ-4A71VA Refrigerant Diagram

Diagram showing the refrigerant circuit, components, and piping for the MXZ-4A71VA model.

MXZ-4A80VA Refrigerant Diagram

Diagram showing the refrigerant circuit, components, and piping for the MXZ-4A80VA model.

MXZ-5A100VA Refrigerant Diagram

Diagram showing the refrigerant circuit, components, and piping for the MXZ-5A100VA model.

Performance Curves

Guaranteed Voltage and Air Flow Settings

Specifies guaranteed voltage and air flow settings for performance testing.

Main Readings for Performance Measurement

Lists the main parameters to be measured during performance testing.

Measuring Indoor Air Temperature Differences

Step-by-step guide on how to measure indoor air temperature differences for service.

Capacity and Input Curves

MXZ-2A Series Capacity and Input Curves

Curves showing capacity and input correction for MXZ-2A series models under varying conditions.

MXZ-3A54VA / MXZ-4A71VA Capacity and Input Curves

Curves showing capacity and input correction for MXZ-3A54VA/4A71VA models under varying conditions.

MXZ-4A80VA Capacity and Input Curves

Curves showing capacity and input correction for MXZ-4A80VA models under varying conditions.

MXZ-5A100VA Capacity and Input Curves

Curves showing capacity and input correction for MXZ-5A100VA models under varying conditions.

Capacity and Input Correction by Inverter Output Frequency

MXZ-2A Series Frequency Correction

Graphs showing capacity and input correction based on inverter frequency for specific outdoor units.

MXZ-3A54VA Frequency Correction

Graphs showing capacity and input correction based on inverter frequency for specific outdoor units.

MXZ-4A71VA Frequency Correction

Graphs showing capacity and input correction based on inverter frequency for specific outdoor units.

MXZ-4A80VA Frequency Correction

Graphs showing capacity and input correction based on inverter frequency for specific outdoor units.

MXZ-5A100VA Frequency Correction

Graphs showing capacity and input correction based on inverter frequency for specific outdoor units.

Test Run Operation

COOL Operation Test Run Procedure

Details the procedure for performing a test run operation in COOL mode.

HEAT Operation Test Run Procedure

Details the procedure for performing a test run operation in HEAT mode.

Outdoor Low Pressure and Unit Current

COOL Operation Charts

Provides charts for outdoor low pressure and current under varying ambient conditions for single-operation modes.

HEAT Operation Charts

Provides charts for outdoor low pressure and current under varying ambient conditions for HEAT operation.

Actuator Control

Sensor and Actuator Relationships

Table showing how sensors relate to actuators (Compressor, LEV, Fan motor, Reversing valve) for different models.

Service Functions

Locking Operation Mode Function

Explains how to lock the outdoor unit's operating mode (COOL, DRY, or HEAT).

Lowering Outdoor Unit Noise Function

Describes how to reduce outdoor unit noise, noting potential impact on capacity.

Pre-Heat Control Function

Explains the pre-heat function to prevent compressor issues and how to activate/deactivate it.

Auto Line Correcting

MXZ-2A Auto Line Correcting Function

Explains the auto line correction function for MXZ-2A models and how it detects and corrects wiring/piping issues.

MXZ-4A80VA / MXZ-5A100VA Auto Line Correcting Function

Explains how to activate the auto line correction function for specific models.

Compressor Frequency and Fan Speed Adjustment

Increasing Maximum Compressor Frequency and Fan Speed

Explains how to increase compressor frequency and fan speed for performance improvement.

Defrost Finish Temperature and Heat Operation Time Adjustment

Changing Defrost Parameters

Describes how to adjust defrost parameters to optimize heat operation.

Changing the Ampere Limit

Outdoor Unit Ampere Limit Adjustment

Explains how to change the ampere limit to manage current flow to the outdoor unit.

Troubleshooting

Troubleshooting Cautions

Provides essential safety precautions and general checks before starting troubleshooting.

Troubleshooting Procedure Overview

General steps for diagnosing unit abnormalities.

Failure Mode Recall Function

Explains how to recall and interpret failure modes stored in the unit's memory.

Outdoor Unit Failure Mode Table

A table detailing outdoor unit failure modes, LED indications, conditions, and correspondences.

Troubleshooting Check Table

MXZ-2A Troubleshooting Check Table

Table listing symptoms, LED indications, abnormal points, conditions, and correspondences for MXZ-2A models.

MXZ-3A/4A/5A Troubleshooting Check Table

Table listing symptoms, LED indications, abnormal points, conditions, and correspondences for MXZ-3A/4A/5A models.

Trouble Criterion of Main Parts

Defrost Thermistor (RT61) Check

Instructions for checking the defrost thermistor resistance.

Fin Temperature Thermistor (RT64) Check

Instructions for checking the fin temperature thermistor resistance.

Ambient Temperature Thermistor (RT65) Check

Instructions for checking the ambient temperature thermistor resistance.

Outdoor Heat Exchanger Temperature Thermistor (RT68) Check

Instructions for checking the outdoor heat exchanger temperature thermistor resistance.

Gas Pipe Temperature Thermistor Check

Instructions for checking gas pipe temperature thermistors for various models.

Discharge Temperature Thermistor (RT62) Check

Instructions for checking the discharge temperature thermistor resistance.

Compressor Check

Instructions for checking compressor resistance and winding.

Outdoor Fan Motor Check

Instructions for checking outdoor fan motor resistance.

R.V. Coil Check

Instructions for checking the resistance of the R.V. coil.

Linear Expansion Valve Check

Instructions for checking the resistance of the linear expansion valve.

High Pressure Switch (HPS) Check

Details on checking the high pressure switch condition.

Troubleshooting Flow

Outdoor Unit Not Operating Troubleshooting Flow

Troubleshooting flow chart for outdoor unit not operating, covering different model series.

Checking Mis-wiring and Serial Signal Error

Guide to check for wiring and serial signal errors when the outdoor unit is not functioning.

R.V. Coil Troubleshooting Flow

Flowchart for diagnosing issues with the R.V. coil.

LEV Troubleshooting Flow

Flowchart for diagnosing issues with the LEV (Linear Expansion Valve) coils.

Inverter/Compressor Check Procedure

Step-by-step guide to check the inverter and compressor for faults.

Outdoor Thermistor Check Procedure

Instructions for checking outdoor thermistors and their resistance.

Outdoor Fan Motor Check Procedure

Flowchart for diagnosing issues with the outdoor fan motor.

HPS Check Procedure

Procedure to check the High Pressure Switch (HPS) and related components.

Bus-bar Voltage Check Procedure

Steps to check bus-bar voltage and confirm outdoor unit failure mode recall function.

Test Point Diagram and Voltage

Inverter P.C. Board Test Points

Diagram showing test points and voltages on the inverter P.C. board.

Outdoor Electronic Control P.C. Board Test Points

Diagram showing test points and voltages on the outdoor electronic control P.C. board.

Noise Filter P.C. Board Diagram

Diagram of the noise filter P.C. board showing component layout and connections.

Power P.C. Board Diagram

Diagram of the power P.C. board showing component layout and connections.

Outdoor Power Board Diagram

Diagram of the outdoor power board showing component layout and connections.

Display P.C. Board Diagram

Diagram of the display P.C. board showing component layout and connections.

Interface P.C. Board Diagram

Diagram of the interface P.C. board showing component layout and connections.

Disassembly Instructions

MXZ-2A Series Disassembly Procedures

Step-by-step instructions for disassembling MXZ-2A series outdoor units.

Compressor Removal (MXZ-3A/4A Series)

Step-by-step guide for removing the compressor from MXZ-3A/4A series outdoor units.

Fan Motor Removal (MXZ-3A/4A Series)

Procedure for removing the fan motor from MXZ-3A/4A series units.

4-Way Valve Removal (MXZ-3A/4A Series)

Steps for removing the 4-way valve from MXZ-3A/4A series units.

Expansion Valve Removal (MXZ-3A/4A Series)

Instructions for removing the expansion valve from MXZ-3A/4A series units.

Reactor Removal (MXZ-3A/4A Series)

Procedure for removing the reactor from MXZ-3A/4A series units.

MXZ-3A54VA / MXZ-4A71VA Disassembly Procedures

Step-by-step guide for disassembling MXZ-3A54VA/4A71VA outdoor units.

MXZ-4A80VA / MXZ-5A100VA Disassembly Procedures

Step-by-step guide for disassembling MXZ-4A80VA/5A100VA outdoor units.

Parts List (non-RoHS compliant)

MXZ-2A Series Structural Parts

Illustrated list of structural and functional parts for MXZ-2A outdoor units.

MXZ-2A Series Electrical Parts

Illustrated list of electrical components for MXZ-2A outdoor units.

MXZ-2A Series Drain Socket

Part number and diagram for the outdoor unit drain socket.

MXZ-3A/4A Series Structural Parts

Illustrated list of structural and functional parts for MXZ-3A/4A outdoor units.

MXZ-3A/4A Series Functional and Electrical Parts

Illustrated list of functional and electrical parts for MXZ-3A/4A outdoor units.

MXZ-3A/4A Series Accessories

List of accessories for MXZ-3A/4A outdoor units.

MXZ-4A80VA Structural Parts

Illustrated list of structural and functional parts for MXZ-4A80VA outdoor units.

MXZ-4A80VA Functional and Electrical Parts

Illustrated list of functional and electrical parts for MXZ-4A80VA outdoor units.

MXZ-4A80VA Accessories

List of accessories for MXZ-4A80VA outdoor units.

RoHS Parts List (RoHS compliant)

MXZ-2A Series Structural Parts

Illustrated list of structural and functional parts for MXZ-2A outdoor units.

MXZ-2A Series Electrical Parts

Illustrated list of electrical components for MXZ-2A outdoor units.

MXZ-2A Series Drain Socket

Part number and diagram for the outdoor unit drain socket.

MXZ-3A/4A Series Structural Parts

Illustrated list of structural and functional parts for MXZ-3A/4A outdoor units.

MXZ-3A/4A Series Functional and Electrical Parts

Illustrated list of functional and electrical parts for MXZ-3A/4A outdoor units.

MXZ-3A/4A Series Accessories

List of accessories for MXZ-3A/4A outdoor units.

MXZ-4A80VA Structural Parts

Illustrated list of structural and functional parts for MXZ-4A80VA outdoor units.

MXZ-4A80VA Functional and Electrical Parts

Illustrated list of functional and electrical parts for MXZ-4A80VA outdoor units.

MXZ-4A80VA Accessories

List of accessories for MXZ-4A80VA outdoor units.

MXZ-3A54VA / MXZ-4A71VA Structural Parts

Illustrated list of structural and functional parts for MXZ-3A54VA/4A71VA outdoor units.

MXZ-3A54VA / MXZ-4A71VA Functional and Electrical Parts

Illustrated list of functional and electrical parts for MXZ-3A54VA/4A71VA outdoor units.

MXZ-3A54VA / MXZ-4A71VA Accessories

List of accessories for MXZ-3A54VA/4A71VA outdoor units.

Optional Parts

Different-Diameter Pipe

Details on optional different-diameter pipes for connecting indoor and outdoor units.

Outlet Guide Accessory

Information and diagrams for the outlet guide accessory that changes air discharge direction.

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