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Mitsubishi Electric MXZ-2A30VA - E2 User Manual

Mitsubishi Electric MXZ-2A30VA - E2
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)
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Mitsubishi Electric MXZ-2A30VA - E2 Specifications

General IconGeneral
CategoryAir Conditioner
ModelMXZ-2A30VA - E2
Cooling Capacity3.0 kW
Power Supply220-240 V, 50 Hz
RefrigerantR32
Outdoor Unit Noise Level49 dB(A)
Number of Connectable Indoor Units2
Indoor Unit Dimensions (WxHxD)Varies depending on the connected indoor unit
Indoor Unit WeightVaries depending on the connected indoor unit

Summary

Technical Changes and Revisions

Revision Details

Lists specific updates and additions made in each revision of the manual.

R410A Refrigerant Information

R410A Properties and Tools

Details R410A refrigerant properties, specifications, and required tools for handling.

Refrigerant Piping and Charge

Guidelines for refrigerant piping, oil, air purge, and additional charging procedures.

2 Part Names and Functions

Outdoor Unit Part Identification

Illustrates and labels the main external parts of different outdoor unit models.

3 Indoor/Outdoor Correspondence Table

Indoor Unit Combinations for Outdoor Units

Provides tables detailing allowable indoor unit combinations for specific outdoor units.

4 Indoor Units Combination

Electrical Data for Combinations

Lists electrical data (power consumption, current, power factor) for various indoor/outdoor unit combinations.

5 Specification

Model Specifications Overview

Details technical specifications for outdoor units including electrical, dimensional, and operating data.

Noise Criteria Curves

Displays octave band sound pressure levels for various outdoor units under cooling and heating.

Installation and System Diagrams

Outlines and Dimensions

Shows physical dimensions and required installation space for outdoor units.

Wiring Diagrams

Provides detailed electrical wiring diagrams for different outdoor unit models.

Refrigerant System Diagrams

Details refrigerant piping specifications, diameters, and calculation methods for additional charge.

Performance and Control

Performance Curves and Temperature Measurement

Explains performance curves and how to measure wet/dry bulb temperatures.

11 Actuator Control

Illustrates the relationship between sensors and actuators for controlling unit operations.

12 Service Functions

Outdoor Unit Service Functions

Explains functions like operation mode locking, noise reduction, and pre-heat control.

Auto Line Correcting Function

Describes the auto line correction function for detecting and correcting wiring/piping errors.

13 Troubleshooting

Troubleshooting Procedures and Failure Modes

Outlines general troubleshooting cautions, failure modes, and step-by-step procedures.

Main Parts Troubleshooting Criteria

Lists check methods and criteria for main components like thermistors, compressor, and fan motor.

14 Disassembly Instructions

Removing Major Outdoor Unit Components

Provides step-by-step instructions for disassembling major outdoor unit components.

15 Parts List (non-RoHS compliant)

Structural and Functional Parts

Details structural and functional parts for MXZ-2A models with part numbers and quantities.

Electrical Parts

Lists electrical components for MXZ-2A models, including part numbers and remarks.

16 RoHS Parts List (RoHS compliant)

RoHS Compliant Structural and Functional Parts

Lists structural and functional parts compliant with RoHS regulations for MXZ-2A models.

RoHS Compliant Functional and Electrical Parts

Lists functional and electrical parts compliant with RoHS for MXZ-2A models.

17 Optional Parts

Different-Diameter Pipe Specifications

Provides specifications for optional different-diameter pipes used for refrigerant connections.

Outlet Guide Information

Explains the function and application of the outlet guide for directing air discharge.

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