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Air-Con 38B User Manual

Air-Con 38B
39 pages
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1
Service manual
Room airconditioner
Split Wall-Mounted Type
NOTE:
Before servicing the unit, please read this first
Always contact with your service center if meet
problem.
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Air-Con 38B Specifications

General IconGeneral
BrandAir-Con
Model38B
CategoryAir Conditioner
LanguageEnglish

Summary

Summary of Air Conditioner Models

Indoor Unit Models Overview

Details about different indoor unit models and their capacities.

Outdoor Unit Models Overview

Details about different outdoor unit models and their capacities.

Model Explanation and Nomenclature

Model Code Structure Breakdown

Breakdown of the air conditioner model number and its component codes.

Attention of Installation

Safety Precautions

Important safety instructions to prevent injury and property damage during installation.

Installation Warnings

Critical warnings regarding electrical hazards, improper installation, and handling.

Installation Cautions

Cautions for installation, operation, and environmental factors.

Operational Guidelines

Guidelines for safe operation and user interaction with the unit.

Installation Details

Specific details for installation, including wrench torque specifications.

Unit Diagrams and Specifications

Explosion Diagrams and Parts List

References to diagrams and lists for unit components.

Refrigerant Cycle Diagrams

Cooling Mode Refrigerant Flow

Schematic illustrating the refrigerant flow during cooling operation.

Heat Pump Mode Refrigerant Flow

Schematic illustrating the refrigerant flow during heat pump operation.

Technical Specifications

Unit Specifications Overview

Technical specifications and parameters for the air conditioner.

Wiring Diagrams

Indoor Unit Wiring Schematics

Electrical wiring diagrams for the indoor unit components.

Outdoor Unit Wiring Diagram

Outdoor Unit Circuit Schematics

Electrical circuit diagram for the outdoor unit components.

PCB Principle Schematics

38 Section PCB Schematic

Schematic diagram for the 38 section of the PCB.

65 Mitsubishi Main Chip Schematic

Schematic diagram for the 65 Mitsubishi main chip.

85 Section PCB Schematic

Schematic diagram for the 85 section.

18NV 85 Compatible PCB Schematic

Schematic diagram for the 18NV 85 compatible model.

Jin Dynasty 85 Model PCB Schematic

Schematic diagram for the Jin Dynasty 85 model.

PCB Functions and Display

Display Panel Types and Indicators

Description of various display panels and their indicator functions.

Cooling Mode Operation

Cooling Process Logic

Details on how the unit operates in cooling mode, including start-up and shutdown logic.

Heating Mode Operation

Heating Process Logic

Details on how the unit operates in heating mode, including start-up and shutdown logic.

Defrost Operation Modes

Intelligent Defrost Mechanism

Explanation of the intelligent defrost mechanism and conditions.

Outdoor PCB Defrost Control

Information on defrost control managed by the outdoor PCB.

Dehumidification Mode Operation

Dehumidification Process Logic

Explanation of the unit's dehumidification function and operation.

Ventilation and Automatic Modes

Ventilation and Auto Mode Operation

Details on ventilation and automatic operating modes of the air conditioner.

Special Functions and Failure Codes

Timer, Sleep, and Emergency Functions

Explanation of timer, sleep, and emergency key functions.

Air Conditioner Failure Codes

List of failure codes, their explanations, and reasons.

Troubleshooting: Sensor Errors

Indoor Sensor Error Diagnosis

Troubleshooting steps for indoor room and coil pipe sensor errors.

Troubleshooting: Fan Motor Issues

Indoor Fan Motor Operation Problems

Troubleshooting guide for when the indoor fan motor does not operate.

Troubleshooting: Compressor Issues

Compressor Operation and Start-up Problems

Troubleshooting guide for compressor not operating or stopping.

Troubleshooting: Remote Control

Remote Control Reception and Functionality

Troubleshooting steps for remote control reception and operation.

General Troubleshooting Guide

Unit Troubleshooting Flowchart

A general flowchart for diagnosing unit troubles.

Troubleshooting: Unit Non-Operation

Indoor and Outdoor Unit Failure Diagnosis

Troubleshooting steps when both indoor and outdoor units do not operate.

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