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Midea MOBA02-09HFN1-QRD0GW User Manual

Midea MOBA02-09HFN1-QRD0GW
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Installation Manual
Mission Series
R410a Models
R32 Models
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Midea MOBA02-09HFN1-QRD0GW Specifications

General IconGeneral
BrandMidea
ModelMOBA02-09HFN1-QRD0GW
CategoryAir Conditioner
LanguageEnglish

Summary

Installation Safety Precautions

General Safety Warning (Death Risk)

Failure to observe a warning may result in death. Install according to national regulations.

General Safety Caution (Injury Risk)

Failure to observe a caution may result in injury or equipment damage. Follow manual instructions.

Detailed Installation Warnings and Risks

Read safety precautions. Improper installation may cause electrical shock, fire, or damage.

Indoor Unit Installation Guide

Indoor Unit Installation Safety

Securely install unit to prevent falling. Avoid interference with TVs/radios. Ground if on metal.

Indoor Unit Mounting and Wall Hole

Caution: Avoid Obstructions During Drilling

Avoid wires, plumbing, and other sensitive components when drilling the wall hole.

Indoor Unit Mounting Plate Dimensions

Indoor Unit Refrigerant Piping Prep

Caution: Avoid Damaging Pipes During Bending

Be careful not to dent or damage piping while bending, as it affects unit performance.

Outdoor Unit Installation Procedure

Selecting the Outdoor Unit Location

Choose a location with adequate space, ventilation, and protection from wind and debris.

Outdoor Unit Specifications and Handling

Drainpipe and Drain Hose Installation

Refrigerant Piping Connection Guide

Safety Warnings for Refrigerant Piping

Field piping by licensed technician. Prevent refrigerant concentration hazards. Avoid contamination.

Steps for Refrigerant Pipe Connection

Measure, cut, and prepare refrigerant pipes. Ensure proper flaring and connection.

Refrigerant Pipe Preparation and Flaring

Flaring Refrigerant Pipe Ends Procedure

Properly flare pipe ends with flare nuts and insulating material for efficient operation.

Connecting and Securing Refrigerant Pipes

Caution: Ensuring No Refrigerant Leaks

Ensure no refrigerant leaks after installation. Ventilate area immediately if a leak occurs.

Connecting Indoor to Outdoor Unit Pipes

Connect copper pipes, apply oil, align, and tighten flare nuts to specified torque.

Electrical Wiring Installation

Safety Precautions for Electrical Wiring

Disconnect power. Use qualified technician. Ensure separate circuit and secure connections.

Wiring Connection Details

Caution: Follow Wiring Diagrams Precisely

Strictly follow the wiring diagram. Keep interconnection cable away from hot copper tubes.

Electrical Power Specifications

Detailed Electrical Wiring Diagrams

System Pressure Testing Procedures

Purpose and Benefits of Pressure Testing

Ensure the system is safe and leak-tight by pressure testing above maximum allowable pressure.

Safety Precautions During Pressure Testing

Ventilate area, evacuate non-essential personnel, and wear safety goggles during pressure testing.

Performing the Pressure Test

Increase pressure gradually, check for leaks, and hold pressure for 15 minutes for strength test.

System Air Evacuation Procedure

Safety Precautions for Air Evacuation

Use appropriate vacuum pump. Do not vacuum outdoor unit. Check for leaks and avoid using refrigerant to evacuate.

Detailed Air Evacuation Steps

Connect manifold gauge and vacuum pump, open low pressure valve, and evacuate to -76cmHG.

Refrigerant Charge Adjustment

Caution: Refrigerant Charging Safety

Charge after vacuum/leak test. Do not exceed max quantity. Use appropriate refrigerant. Use protective gear.

Final System Test Run

Pre-Test Run System Checks

Confirm units installed correctly, piping/wiring connected, no obstacles, no leaks, and correct voltage.

Caution: Importance of Test Run

Failure to perform test run may result in unit damage, property damage, or personal injury.

Executing the Test Run

Open valves, turn on power, set to COOL mode, and check indoor/outdoor unit operations.

General Servicing Information

Strict Prohibition of Ignition Sources

Do not use ignition sources near refrigerant. Keep sources away. Survey area for hazards. Display NO SMOKING signs.

Servicing Electrical & Sealed Components

Servicing Safe Components & Leak Detection

Refrigerant Removal and Evacuation Process

Follow procedures for removal, purging with inert gas, and evacuation. Do not use compressed air or oxygen.

Servicing: Charging & Decommissioning

Following Refrigerant Charging Procedures

Follow requirements for contamination, cylinder handling, earthing, and leak testing.

Servicing: Labelling, Recovery, Transport

Safe Refrigerant Recovery Procedures

Remove refrigerants safely using appropriate cylinders and equipment. Do not mix refrigerants.

Indoor Unit Fault Codes and Display

Final Commissioning & Installation Checklist

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