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Mitsubishi Electric MSZ-A09YV-E1WH User Manual

Mitsubishi Electric MSZ-A09YV-E1WH
24 pages
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SERVICE MANUAL
CONTENTS
1. PART NAMES AND FUNCTIONS······················2
2. SPECIFICATION·················································4
3. NOISE CRITERIA CURVES·······························5
4. OUTLINES AND DIMENSIONS ·························6
5. WIRING DIAGRAM ············································7
6. REFRIGERANT SYSTEM DIAGRAM················7
7. SERVICE FUNCTIONS ······································8
8. TROUBLESHOOTING······································10
9. DISASSEMBLY INSTRUCTIONS ····················19
10. PARTS LIST······················································21
11. OPTIONAL PARTS···········································23
Wireless type
Models
MSZ-A09YV -
(WH)
MSZ-A12YV -
(WH)
E1
E1
No. OB327
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
Indication of model name
MSZ-A09YV -
MSZ-A12YV -
E1
E1
NOTE:
This service manual describes technical data of the indoor units.
•Refer to the service manual OB328 when MSZ-A09YV- or MSZ-A12YV- is connected
with MUZ-A09YV- , MUZ-A12YV- , MUZ-A09YVH- or MUZ-A12YVH- .
•Refer to the service manual OB319 when MSZ-A09YV- or MSZ-A12YV- is connected
with MXZ-A18WV- , MXZ-A26WV- or MXZ-A32WV- as multi system units.
E1E1E1
E1E1
E1E1E1E1
E1E1
OB327 --1qxp 04.1.8 1:41 PM Page 1
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Mitsubishi Electric MSZ-A09YV-E1WH Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMSZ-A09YV-E1WH
CategoryAir Conditioner
LanguageEnglish

Summary

1 PART NAMES AND FUNCTIONS

INDOOR UNIT COMPONENTS

Identifies and labels internal parts of the indoor air conditioning unit.

ACCESSORIES

Lists the included accessories for the indoor unit.

2 SPECIFICATION

Indoor Model Specifications

Details electrical and performance specifications for MSZ-A09YV and MSZ-A12YV models.

Main Electric Parts Specifications

Lists key electrical components and their specifications.

3 NOISE CRITERIA CURVES

MSZ-A09YV Noise Levels

Presents octave band sound pressure levels for the MSZ-A09YV model.

MSZ-A12YV Noise Levels

Presents octave band sound pressure levels for the MSZ-A12YV model.

4 OUTLINES AND DIMENSIONS

MSZ-A09YV Dimensions

Provides detailed physical dimensions and mounting information for the MSZ-A09YV unit.

MSZ-A12YV Dimensions

Provides detailed physical dimensions and mounting information for the MSZ-A12YV unit.

5 WIRING DIAGRAM

Model Wiring Diagram

Illustrates the electrical connections for the indoor unit models.

6 REFRIGERANT SYSTEM DIAGRAM

Indoor Unit Refrigerant Flow

Depicts the refrigerant piping and flow for indoor units in cooling and heating.

7 SERVICE FUNCTIONS

Timer Short Mode

Describes a function to shorten timer settings for service purposes.

PC Board Modification for Individual Operation

Explains how to modify PC boards for multi-unit operation.

Auto Restart Function

Details the unit's behavior after power restoration.

8 TROUBLESHOOTING

Cautions and Troubleshooting Procedures

Provides safety guidelines and initial steps for diagnosing issues.

How to Replace Batteries

Guides on replacing batteries in the remote controller when malfunction occurs.

How to install the horizontal vanes

Horizontal Vane Installation Guide

Step-by-step instructions for correctly installing horizontal vanes.

Multi System Air Conditioner Information

Notes on connecting multiple indoor units to a single outdoor unit.

Instruction of troubleshooting

Troubleshooting Flowchart

Provides a visual flowchart for diagnosing unit operational issues.

Troubleshooting Check table

Operation Indicator Troubleshooting

Details symptoms and detection methods based on operation indicator lamp status.

Trouble criterion of main parts

Part Resistance and Voltage Checks

Specifies resistance and voltage criteria for checking key components like thermistors and motors.

Indoor Fan Motor Check

Detailed procedure for checking the indoor fan motor's continuity and operation.

Remote Controller and Receiver Check

Remote Controller Functionality

Steps to verify if the remote controller and its receiver are functioning correctly.

Indoor Electronic Control PC Board Check

PC Board Visual Inspection

Guides on visually inspecting the indoor electronic control PC board for defects.

How to Check Mis-wiring

Mis-wiring Detection Procedure

Outlines steps to identify and rectify incorrect wiring between indoor and outdoor units.

Check of Horizontal Vanes Installation

Horizontal Vane Installation Verification

Describes how to check if horizontal vanes are correctly installed.

Check of Thermal Fuse

Thermal Fuse Continuity Test

Details the procedure for testing the continuity of the thermal fuse.

TEST POINT DIAGRAM AND VOLTAGE

Indoor Electronic Control PC Board

Provides a diagram of test points and voltages on the main control board.

Power Monitor Receiver PC Board

Shows test points for the power monitor receiver board.

Thermistor Resistance Graph

Illustrates the resistance-temperature relationship for thermistors.

9 DISASSEMBLY INSTRUCTIONS

Indoor Unit Disassembly Procedure

Step-by-step guide for disassembling the indoor unit.

Removing the Panel

Instructions for safely removing the unit's front panel.

Removing Electronic Control PC Board

Steps for removing the main electronic control and power monitor boards.

Removing the Electrical Box

Electrical Box Removal

Details the process for removing the electrical box from the unit.

Removing the Nozzle Assembly and Vane Motor

Nozzle Assembly and Vane Motor Removal

Instructions for detaching the nozzle assembly and vane motor.

Removing the Indoor Fan Motor and Line Flow Fan

Fan Motor and Line Flow Fan Removal

Steps for removing the indoor fan motor and the line flow fan.

10 PARTS LIST

Indoor Unit Structural Parts

Lists structural components of the indoor unit with part numbers.

Accessory and Remote Controller Parts

Lists parts related to accessories and the remote controller.

Indoor Unit Electrical and Functional Parts

Electrical and Functional Components

Lists internal electrical and functional parts with their part numbers.

Indoor Unit Heat Exchanger

Heat Exchanger Components

Lists parts related to the indoor unit's heat exchanger.

10-5. AIR CLEANING FILTER

Air Cleaning Filter Description

Explains the function, life, and maintenance of the air cleaning filter.

11 OPTIONAL PARTS

Quick Clean Kit

Describes an optional kit for cleaning the heat exchanger.

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