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Mitsubishi Electric PLA Sseries User Manual

Mitsubishi Electric PLA Sseries
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SERVICE MANUAL
INDOOR UNIT
PARTS CATALOG (OCB783)
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
Model name
indication for
MAIN UNIT
Model name
indication for GRILLE
Indoor unit
[Model Name] [Service Ref.]
Grille model
[Model Name] [Service Ref.]
PLP-6EA
PLP-6EAE
PLP-6EAL
PLP-6EALE
PLP-6EAJ
PLP-6EAJE
PLP-6EALM2
PLP-6EALME2
PLP-6EA PLP-6EAR1
PLP-6EAE PLP-6EAER1
PLP-6EAL PLP-6EALR1
PLP-6EALE PLP-6EALER1
PLP-6EAJ
PLP-6EAJE
PLP-6EALM2
PLP-6EALME2
R32/R410A
No. OCH783
October 2021
CONTENTS
1. REFERENCE MANUAL ·······················2
2. SAFETY PRECAUTION ·······················2
3. PARTS NAMES AND FUNCTIONS ········8
4. SPECIFICATIONS ······························ 9
5. NOISE CRITERION CURVES ············· 12
6. OUTLINES AND DIMENSIONS ··········· 14
7. WIRING DIAGRAM ··························· 15
8. REFRIGERANT SYSTEM DIAGRAM ··· 16
9. TROUBLESHOOTING ······················· 17
10. FUNCTION SETTING ························ 32
11. SPECIAL FUNCTION ························ 33
12. DISASSEMBLY PROCEDURE ············ 37
13. REMOTE CONTROLLER ··················· 44
PLA-M35EA2
PLA-M35EA2-ER
PLA-M35EA2-ET
PLA-M50EA2
PLA-M50EA2-ER
PLA-M50EA2-ET
PLA-M60EA2
PLA-M60EA2-ER
PLA-M60EA2-ET
PLA-M71EA2
PLA-M71EA2-ER
PLA-M71EA2-ET
PLA-M100EA2
PLA-M100EA2-ER
PLA-M100EA2-ET
PLA-M125EA2
PLA-M125EA2-ER
PLA-M125EA2-ET
PLA-M140EA2
PLA-M140EA2-ER
PLA-M140EA2-ET
PLA-M35EA2.UK
PLA-M35EA2-ER.UK
PLA-M35EA2-ET.UK
PLA-M50EA2.UK
PLA-M50EA2-ER.UK
PLA-M50EA2-ET.UK
PLA-M60EA2.UK
PLA-M60EA2-ER.UK
PLA-M60EA2-ET.UK
PLA-M71EA2.UK
PLA-M71EA2-ER.UK
PLA-M71EA2-ET.UK
PLA-M100EA2.UK
PLA-M100EA2-ER.UK
PLA-M100EA2-ET.UK
PLA-M125EA2.UK
PLA-M125EA2-ER.UK
PLA-M125EA2-ET.UK
PLA-M140EA2.UK
PLA-M140EA2-ER.UK
PLA-M140EA2-ET.UK
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Mitsubishi Electric PLA Sseries Specifications

General IconGeneral
BrandMitsubishi Electric
ModelPLA Sseries
CategoryAir Conditioner
LanguageEnglish

Summary

Reference Manual

Safety Precaution

Meanings of Symbols Displayed on the Unit

Displays symbols used for safety warnings on the unit itself.

Cautions Related to New Refrigerant (R32/R410A)

General safety guidelines for handling R32/R410A refrigerant during service.

General Service Safety Warnings

Broad safety advice for installation, relocation, and repair operations.

Cautions for Unit Using R32 Refrigerant

Specific safety measures and procedures when working with R32 refrigerant.

Parts Names and Functions

Indoor Unit Components Identification

Identifies the main parts and components of the indoor unit.

Wireless Remote Controller Identification

Identifies the main parts of the wireless remote controller.

Specifications

Noise Criterion Curves

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Troubleshooting

General Troubleshooting Guide

Overview of troubleshooting steps and self-diagnosis methods.

Self-Diagnosis Action Table

Detailed table of error codes, causes, and countermeasures.

Troubleshooting of Specific Problems

Addresses common operational issues and their solutions.

Emergency Operation Procedures

Steps for operating the unit during remote controller failure.

Component Checking Procedures

Guides on how to test specific internal components.

Test Point Diagram for Controller Board

Visual guide to test points on the indoor controller board.

Dip Switch and Jumper Wire Functions

Explains functions controlled by DIP switches and jumper wires.

Function Setting

Unit Function Setting via Remote Controller

How to configure unit functions using the remote controller.

Special Function

Automatic Filter Elevation Grille Operation

Describes the operation of the automatic filter elevation grille.

Electrical Circuit and Wiring Diagrams

Details electrical circuits and wiring for special components.

Troubleshooting Special Functions

Addresses issues related to special functions and components.

Rotation and Back-up Function Settings

Configuration for rotation and backup operation modes.

Disassembly Procedure

Filter and Air Intake Grille Removal

Steps to remove the filter and air intake grille.

Electrical Box and Thermistor Removal

Procedures for removing the electrical box and thermistors.

Fan Motor and Panel Removal

Steps for removing the fan motor and unit panels.

Drain Pan and Thermistor Removal

Procedures for removing the drain pan and specific thermistors.

Drain Pump and Float Switch Removal

Steps to remove the drain pump and float switch.

Heat Exchanger Removal

Procedure for removing the heat exchanger assembly.

Remote Controller

Remote Controller Functions Overview

Explains the buttons and display of the remote controller.

Error Information Display and Reset

How to view and clear error codes via the remote controller.

Service Menu Navigation

Accessing and navigating the service menu on the remote.

Test Run Operations

Procedures for performing test runs using the remote controller.

Function Setting via Remote Controller

How to configure unit functions using the remote controller.

Rotation Setting Configuration

Setting up rotation and backup functions via the remote.

Error History Management

Viewing and deleting error logs through the remote controller.

Self-Diagnosis Procedures

Performing self-diagnosis and checking unit status via remote.

Remote Controller Check Function

Diagnosing the remote controller itself for faults.

Smooth Maintenance Data Retrieval

Accessing operational data like temperatures and run times.

Request Code for Operation Data

Retrieving specific operation data using request codes.

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