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Midea MSR1-07HRN1-QB6A User Manual

Midea MSR1-07HRN1-QB6A
63 pages
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RSEU-A1-1206
SERVICE MANUAL
MIDEA AIRCONDITIONER
EUROPE MARKET
SPLIT WALL-MOUNTED TYPE
R ON-OFF SERIES
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Midea MSR1-07HRN1-QB6A Specifications

General IconGeneral
BrandMidea
ModelMSR1-07HRN1-QB6A
CategoryAir Conditioner
LanguageEnglish

Summary

Precaution

Safety Precautions

General safety instructions to prevent injury and property damage.

Installation and Operation Warnings

Critical safety warnings and cautions for installation, operation, and maintenance.

Function

Indoor and Outdoor Unit Model List

Lists indoor and outdoor unit model names categorized by capacity and series.

Dimension

Indoor Unit Dimensions and Specs

Provides dimensions (W, H, D) for various indoor unit models.

Outdoor Unit Dimensions and Specs

Provides dimensions (W, D, H, W1, A, B) for various outdoor unit models.

Refrigerant Cycle Diagram

Refrigerant Cycle: Cooling Models

Diagram illustrating the refrigerant cycle for cooling-only air conditioners.

Refrigerant Cycle: Heat Pump Models

Diagram illustrating the refrigerant cycle for heat pump models.

Wiring Diagram

Indoor Unit Wiring Diagrams

Wiring diagrams for various indoor unit models.

Outdoor Unit Wiring Diagrams

Wiring diagrams for specific outdoor unit models.

Installation Details

Installation Wrench Torque Specifications

Specifies torque values for various pipe diameters during installation.

Power Cable Connection Guide

Guidelines for selecting power cord cross-sectional area based on appliance current.

Pipe Length and Elevation Guidelines

Details on pipe length, refrigerant amount, and elevation limits for models.

Initial Installation Procedures

Procedures for initial system setup, including purging and refrigerant charging.

Refrigerant Addition (Post-Use)

Procedure for adding refrigerant to a system that has been in use for several years.

Re-installation After Indoor Unit Repair

Steps for re-installing after indoor unit repair, including refrigerant collection.

Re-installation After Outdoor Unit Repair

Steps for re-installing after outdoor unit repair, including evacuation and charging.

Operating Characteristics

Temperature Operating Ranges

Defines operating temperature ranges for cooling, heating, and drying modes.

Electronic Functions

Technical Abbreviation Definitions

Defines abbreviations for various temperature sensors used in the system.

Indoor Display Icons Explained

Explains icons displayed on the indoor unit's display board.

Main Protection Features

Compressor Restart Time Delay

Explains the time delay feature for compressor restarts.

Fan Speed Control Faults

Describes failure and LED indication for fan speed control problems.

Current Protection Zones (A, B, C)

Details the different zones (A, B, C) of current protection for the unit.

Zero Crossing Detection Error Protection

Explains protection for zero crossing signal errors in specific models.

Indoor/Outdoor Unit Communication Protection

Describes protection for communication failures between indoor and outdoor units.

Modes and Functions Overview

Fan Mode Operation

Explains fan operation in different modes, including auto fan.

Cooling Mode Operation Details

Explains compressor, outdoor fan, and indoor fan running rules in cooling mode.

Heating Mode Operation Details

Explains compressor, outdoor fan, and indoor fan running rules in heating mode.

Auto Mode Operation

How the AC selects cooling, heating, or fan-only mode based on temperature difference.

Drying Mode Operation

Operation rules for the drying mode.

Forced Operation Modes

How to activate and use forced cooling and auto modes.

Timer Functionality

Explanation of timer settings for on, off, and combined functions.

Sleep Function Mode

Details of sleep mode operation and its interaction with timers.

Auto-Restart Functionality

How the unit resumes operation after a power failure.

Troubleshooting Guide

Indoor Unit Error Code Display

Table showing error codes displayed by the indoor unit and their meanings.

Fault Diagnosis and Solutions

Indoor Fan Speed Control Diagnosis

Troubleshooting steps for indoor fan speed control issues.

Temperature Sensor Error Diagnosis

Troubleshooting for temperature sensor open circuit or short circuit errors.

Over Current Protection Diagnosis

Troubleshooting steps for over current protection errors.

EEPROM Parameter Error Diagnosis

Troubleshooting steps for EEPROM parameter errors.

Zero Crossing Detection Error Diagnosis

Troubleshooting steps for zero crossing detection errors.

Unit Communication Error Diagnosis

Troubleshooting steps for indoor/outdoor unit communication errors.

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