Haier 1U125S2SN2FB User Manual

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
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Haier 1U125S2SN2FB Specifications

General

Energy Efficiency Ratio (EER)	3.21
Refrigerant	R32
Compressor Type	Rotary
Power Supply	220-240V/50Hz/1Ph
Operating Temperature (Cooling)	18-43 °C
Type	Split
Cooling Capacity	12500 BTU/h

Summary

Important Information on Refrigerant Usage

2. Safety Considerations

3. Before Installation

3.3. Refrigerant R32 Precautions

Details specific precautions for handling R32 refrigerant, emphasizing cleanliness and dryness.

4. Selecting Installation Site

5. Installation Precautions

6. Refrigerant Pipe Sizing and Length Limits

6.1. Required Tools and Materials

7. Refrigerant Piping

8. Leak Test and Vacuum Drying

8.2. Performing Leak Tests

Details the procedures for performing both vacuum leak tests and pressure leak tests.

8.3. Vacuum Drying Procedure

Explains the step-by-step process for vacuum drying the system to remove moisture.

9. Refrigerant Charging

9.2. Charging Precautions

Covers precautions and guidelines for opening the refrigerant system, leak testing, and charging.

9.3. Complete Refrigerant Recharge

Provides instructions for complete recharging, including vacuum drying and determining the necessary amount of refrigerant.

10. Electrical Wiring Work

10.1. Wiring Precautions

Lists crucial precautions for electrical wiring, emphasizing authorized electricians and circuit breakers.

10.2. Power Supply and Inter-Unit Wiring

11. Test Operation

11.1. Pre-Run Checks

Outlines essential checks to perform before the initial test run, covering wiring, grounding, and refrigerant piping.

11.2. Test Run Precautions

Provides specific precautions to follow during the first test run of the unit.

11.4. Failure Diagnosis

Outdoor Unit Troubleshooting

Lists common malfunctions, their diagnosis, and analysis for the outdoor unit.