Haier 1U18FS2ERA-S User Manual

ROOM AIR CONDITIONER
INSTALLATION MANUAL
1U09BS3ERA
1U12BS3ERA
1U15BS3ERA
1U18FS2ERA(S)
1U18RE3ERA
0010568862
Please read this manual carefully before installtion.
Keep this operation manual for future reference.
1U09QE7ERA-S
1U12QE7ERA-S
1U09QE3ERA
1U12QE3ERA
1U09BE8ERA
1U12BE8ERA
1U18EE8ERA
1U24RE8ERA

Haier 1U18FS2ERA-S Specifications

General

Brand	Haier
Model	1U18FS2ERA-S
Category	Air Conditioner
Language	English

Summary

Safety Precautions

General Operational Safety

Key warnings for safe operation, including electrical hazards and proper handling.

Installation and Environmental Safety

Precautions for unit installation, refrigerant handling, and environmental considerations.

Refrigerant Handling Precautions (R410A)

Guidelines for safe handling and usage of R410A refrigerant and related tools.

Installation Site Selection

Advice on choosing the installation location and avoiding environmental risks.

Electrical Work and Grounding

Precautions for electrical wiring, grounding, circuit protection, and installation.

Pre-Test Run Safety

Read Before Installation

Necessary Tools and Materials

Details the tools and materials required for installation and servicing with R410A.

Air Tightness Test and Vacuuming

Air Tightness Test Procedure

Explains the method for performing an air tightness test using nitrogen.

Vacuuming Procedures

Charging Refrigerant

Installation Procedure: Air Tightness Test

Air Tightness Test Steps

Checking for Leaks

Installation Procedure: Vacuuming

Vacuuming Method

Preventing Gas Leakage

Installation Procedure: Electrical Wiring

Wiring Precautions

Key safety precautions for electrical wiring work, emphasizing authorized personnel.

Power Supply and Wire Sizing

Outdoor Unit Troubleshooting

Trouble Analysis by LED Flashes

Diagnoses common errors based on the flash times of LEDs on the main board.