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Haier 1U140S2SN1FB - User Manual

Haier 1U140S2SN1FB
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SPLIT SYSTEM AIR CONDITIONER
INSTALLATION MANUAL
No. 0150546199
y
This product must only be installed or serviced by qualied personnel.
Please read this manual carefully before installation.This appliance is lled with R32.
Keep this manual for future reference.
Original instructions
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Contents
Definitions
Safety considerations
Before installation
Selecting installation site
Precautions on installation
Refrigerant pipe size and allowable
pipe length
Refrigerant piping
Leak test and vacuum drying
Charging refrigerant
Electrical wiring work
Test operation
Move and scrap the air conditioning
1U105S2SS1FA
1U105S2SS1FB
1U125S2SN1FA
1U125S2SN1FB
1U125S2SN2FA
1U125S2SN2FB
1U140S2SN1FA
1U140S2SN1FB
1U140S2SP1FA
1U140S2SP1FB
1U140S2SP2FA
1U140S2SP2FB
1U160S2SP1FB
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Summary

Safety considerations

DANGER: ELECTRICAL SHOCK

Crucial safety warning about disconnecting power before servicing electrical parts to prevent severe shock.

Before installation

Selecting installation site

Foundation work

Selection of installation location of outdoor

Refrigerant pipe size and allowable pipe length

DANGER: Piping Safety

Highlights dangers of piping non-compliance, emphasizing legislation and suitable materials like copper.

Necessary Tools and Materials

Piping Materials

Types of Copper Pipes (Reference)

Specifies the types of copper pipes and their radial thickness suitable for different refrigerants and pressures.

Flare Machining (type-O and OL only)

Details standards for flare machining dimensions for R410A units to ensure air tightness.

Flare Nut

Explains the use of Type-2 flare nuts for increased strength in R410A units.

Refrigerant piping

7.2. Piping size for single split

Provides a table detailing recommended pipe diameters and connection methods for single split models.

7.3. Limitations for one way piping length and vertical height difference for single split

Outlines maximum allowable piping lengths and vertical height differences for single split systems.

Piping connection method

Leak test and vacuum drying

Charging refrigerant

Total charging weight of the refrigerant (after a leak, etc.)

Add oil instruction

Electrical wiring work

WARNING

Stresses that all wiring must be performed by an authorized electrician and comply with legislation.

DANGER: HIGH VOLTAGE.

Warns about high voltage risks when servicing electrical parts and how to safely measure voltage.

Precautions on electrical wiring work

Connecting power supply and inter-unit wiring

Test operation

11.1. Pre-run checks

Lists essential checks to perform before test operation, including wiring, grounding, and refrigerant piping.

11.2. Precautions regarding test-runs

Provides precautions for test runs, including initial operation mode and unattended operation.

Before Installing (Relocating) the Unit or Performing Electric Work

Failure diagnosis

OUTDOOR UNIT TROUBLE SHOOTING

Presents a troubleshooting guide for outdoor unit malfunctions, including error codes and analysis.

Summary

Safety considerations

DANGER: ELECTRICAL SHOCK

Crucial safety warning about disconnecting power before servicing electrical parts to prevent severe shock.

Before installation

Selecting installation site

Foundation work

Selection of installation location of outdoor

Refrigerant pipe size and allowable pipe length

DANGER: Piping Safety

Highlights dangers of piping non-compliance, emphasizing legislation and suitable materials like copper.

Necessary Tools and Materials

Piping Materials

Types of Copper Pipes (Reference)

Specifies the types of copper pipes and their radial thickness suitable for different refrigerants and pressures.

Flare Machining (type-O and OL only)

Details standards for flare machining dimensions for R410A units to ensure air tightness.

Flare Nut

Explains the use of Type-2 flare nuts for increased strength in R410A units.

Refrigerant piping

7.2. Piping size for single split

Provides a table detailing recommended pipe diameters and connection methods for single split models.

7.3. Limitations for one way piping length and vertical height difference for single split

Outlines maximum allowable piping lengths and vertical height differences for single split systems.

Piping connection method

Leak test and vacuum drying

Charging refrigerant

Total charging weight of the refrigerant (after a leak, etc.)

Add oil instruction

Electrical wiring work

WARNING

Stresses that all wiring must be performed by an authorized electrician and comply with legislation.

DANGER: HIGH VOLTAGE.

Warns about high voltage risks when servicing electrical parts and how to safely measure voltage.

Precautions on electrical wiring work

Connecting power supply and inter-unit wiring

Test operation

11.1. Pre-run checks

Lists essential checks to perform before test operation, including wiring, grounding, and refrigerant piping.

11.2. Precautions regarding test-runs

Provides precautions for test runs, including initial operation mode and unattended operation.

Before Installing (Relocating) the Unit or Performing Electric Work

Failure diagnosis

OUTDOOR UNIT TROUBLE SHOOTING

Presents a troubleshooting guide for outdoor unit malfunctions, including error codes and analysis.

Overview

This document is an installation manual for Haier split system air conditioners, specifically covering models 1U105S2SS1FA, 1U105S2SS1FB, 1U125S2SN1FA, 1U125S2SN1FB, 1U125S2SN2FA, 1U125S2SN2FB, 1U140S2SN1FA, 1U140S2SN1FB, 1U140S2SP1FA, 1U140S2SP1FB, 1U140S2SP2FA, 1U140S2SP2FB, and 1U160S2SP1FB. The manual provides comprehensive instructions for the safe and correct installation, maintenance, and eventual disposal of these R32 refrigerant-filled units.

Function Description

The Haier split system air conditioner is designed to provide cooling and heating for indoor spaces. It operates by circulating refrigerant between an indoor unit and an outdoor unit. The outdoor unit contains the compressor, heat exchanger, and fan, while the indoor unit typically houses another heat exchanger and fan to distribute conditioned air. The system is designed for efficient operation, with specific considerations for refrigerant handling and electrical connections to ensure optimal performance. The use of R32 refrigerant, a fluorinated greenhouse gas, necessitates strict adherence to environmental regulations regarding its containment and disposal. The units are designed to operate within specified pressure ranges, requiring appropriate piping materials and installation techniques to maintain system integrity and prevent leaks.

Usage Features

The air conditioner is intended for use by expert or trained users in various settings, including shops, light industry, farms, or for commercial use by lay persons. It is not designed to be operated by external timers or separate remote-control systems, emphasizing direct user interaction or integrated control. The system includes safety features such as protection against overcurrent, high/low voltage, and abnormal temperatures, which are monitored by the control board and compressor driver module. In case of malfunctions, the outdoor unit's LED3 can indicate specific error codes, aiding in troubleshooting. The system is designed to perform a test run in cooling mode after installation to detect any issues with stop valves or other components. For optimal performance, the manual outlines specific installation site requirements, including ventilation, distance from other objects, and protection from strong winds or heavy snowfall, to ensure efficient air circulation and prevent operational disruptions.

Maintenance Features

Maintenance of the Haier split system air conditioner requires qualified personnel due to the complexity of the refrigerant system and electrical components. The manual emphasizes the importance of wearing adequate personal protective equipment during installation and servicing. Key maintenance procedures include leak testing and vacuum drying of the refrigerant piping to remove moisture and ensure system tightness. If the refrigerant system needs to be opened, treatment and evacuation of the refrigerant must be done in accordance with applicable legislation. Refrigerant charging, if required, must be performed in the liquid state to maintain the correct composition of the mixed R32 refrigerant. The manual provides detailed instructions for checking insulation resistance, tightening flare nuts to specified torques, and ensuring proper electrical wiring connections. It also highlights the importance of regular checks for refrigerant leaks and ensuring that service ports are handled correctly. For relocation or scrapping, the manual advises contacting the dealer for technical support and ensuring that refrigerant is recycled by qualified enterprises, adhering to environmental regulations. The system's design includes components that can be isolated for servicing, with additional service ports for vacuuming, pressure relief, or pressurizing the circuit.

Haier 1U140S2SN1FB Specifications

General IconGeneral
BrandHaier
Model1U140S2SN1FB
CategoryAir Conditioner
LanguageEnglish

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