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John LynchJul 31, 2025
Why does my Haier 1U71S2SR2FA show IPM protection?
- JJesus ShieldsAug 1, 2025
The IPM protection error on your Haier Air Conditioner indicates that an input over current has been detected by the PIM hardware.
Why does my Haier 1U71S2SR2FA show IPM protection?
The IPM protection error on your Haier Air Conditioner indicates that an input over current has been detected by the PIM hardware.
General| Refrigerant | R32 |
|---|---|
| Outdoor Unit Noise Level | 56 dB(A) |
| Type | Split System |
| Power Supply | 220-240V, 50Hz |
| Features | Sleep Mode |
Crucial warnings regarding potential hazards and operational safety for the air conditioner.
Important cautions for safe handling, installation, and environmental compliance.
Details on the unit's conformity with European directives and standards.
Key information about the refrigerant used and its environmental impact.
Guidelines for safe handling of units during loading and unloading operations.
Safety measures and regulations for transporting air conditioning units.
Conditions and limitations for storing air conditioning equipment safely.
Procedures and awareness points to minimize risks during installation.
Steps to inspect units upon unpacking to ensure no damage or leaks.
Verifying the installation site for suitability and safety.
Fundamental safety principles to be followed during the installation process.
Mandatory safety requirements for electrical wiring and connections.
Necessary qualifications for personnel performing installation.
Specific procedures and guidelines for installing the indoor unit.
Specific procedures and guidelines for installing the outdoor unit.
Procedure for removing air and moisture from the refrigerant circuit.
Methods for checking the refrigerant circuit for leaks.
Checks and tests performed after installation to ensure proper function.
Steps involved in safely moving and reinstalling the air conditioner.
Guidelines and precautions for maintaining the air conditioner.
Qualifications needed for personnel performing maintenance.
Requirements for the environment where maintenance is performed.
Specific requirements for the location and setup of the maintenance site.
Detailed methods for detecting refrigerant leaks.
Key safety principles to follow during maintenance operations.
Specific items and procedures for performing maintenance.
Procedures for maintaining electrical parts safely.
Guidelines for maintaining intrinsically safe components.
Procedures for safely removing and vacuumizing refrigerant.
Safety precautions and procedures for welding refrigerant lines.
Steps and requirements for charging refrigerant into the system.
Procedures for safely scrapping and recovering refrigerant from the unit.
Detailed process for recovering refrigerant during maintenance or scrapping.
Instructions for moving and scrapping the air conditioning unit.
Diagram showing the correct routing for refrigerant piping.
Guidance on securely mounting the outdoor unit to a foundation.
Crucial warnings for safe operation and potential hazards.
Important cautions for preventing damage and ensuring safety during operation.
Critical warnings for safe installation and potential risks.
Important cautions for preventing installation errors and hazards.
Specific precautions for handling units using R32 refrigerant.
Key considerations and warnings before commencing unit installation.
Safety guidelines for installation, relocation, and electrical work.
Precautions to take before conducting the initial test run.
List of items to verify before proceeding with installation.
Essential tools and materials required for installation and servicing.
Specifications for copper pipes suitable for R32 refrigerant.
Requirements for radial thickness of pipes based on refrigerant type.
Dimensions and procedures for flare machining of pipes.
Specifications for flare nuts used with R32 units.
Procedure for testing the air tightness of the refrigerant circuit.
Method for creating a vacuum in the refrigerant system.
Guidelines for charging R32 refrigerant into the system.
Criteria for choosing the optimal location for outdoor unit installation.
Step-by-step instructions for mounting the outdoor unit.
Diagram with dimensions for outdoor unit installation.
Specifications for the size of liquid and gas pipes.
Procedure for connecting the refrigerant pipes to the unit.
Detailed procedure for performing the air tightness test using nitrogen.
Step-by-step guide for vacuumizing the refrigerant piping using a vacuum pump.
Safety precautions to follow during electrical wiring work.
Guidelines for selecting appropriate wire sizes and circuit protection.
Step-by-step instructions for connecting the electrical wiring.
Preparations and checks before performing the initial test run.
Procedure for conducting the test run and checks to perform.
Table of LED flash codes for diagnosing indoor/outdoor unit malfunctions.
