Installation Procedure
Outdoor is precharged with refrigerant.
Be sure to see the Fig.1, when connecting and removing piping from unit.
For the size of the flare nut, please refer to Table 1.
Apply refrigerant oil at both inside and outsid of lflare nut. Tighten it band tight 
Use torque specified in Table 1. (Too much force may damage flare nut, causing gas leakage).
Check piping joints for gas leakage. Insulate piping as shown in Fig. below. 
Cover joint of gas piping and insulator 
spanner
Pipe dia, shall be equal or larger than that of unit piping.(pipe of polyethylent; size: 25mm; O.D:32mm)
Drain pipe should be short, with a downward slope at least 1/100 to prevent air bag from happening.
If downward slope can't be made, take other measures to lift it up.
Keep a distance of 
Installation height shall be less than 280mm.
There should be a right angle with unit, 300mm from unit.
below75
The slope of water drain hose (1) shall be within 75mm, don't apply too much force on it. 
If several water hoses join together, do as per following proceedures.
AB282ACERA, AB482ACEAA, AB242ACEAA, AB362ACERA, AB362ACEAA specifications
The Haier AB182ACERA, AB282ACEAA, AB242ACERA, AB522ACERA, and AB182ACEAA are part of Haier’s cutting-edge air conditioning series, known for their energy efficiency and innovative features. Each model is designed to provide optimal comfort while utilizing advanced technologies to ensure a pleasant indoor environment.Starting with the Haier AB182ACERA, this model is ideal for smaller spaces, offering a cooling capacity of 1.5 tons. It is designed with an inverter compressor that regulates energy usage according to the room's cooling requirements, leading to substantial energy savings. The model includes a microchannel heat exchanger, enhancing heat transfer efficiency and reducing refrigerant usage, making it eco-friendly.
The AB282ACEAA variant is slightly more powerful, designed for medium-sized rooms with a cooling capacity of 2 tons. One of its standout features is the smart control technology that allows users to operate the air conditioner via a mobile app, enabling remote operation and monitoring. Furthermore, it includes a four-way swing feature that allows airflow to be distributed evenly throughout the room.
For those looking at versatility, the Haier AB242ACERA offers multiple modes including cooling, heating, and dehumidification. This model emphasizes user comfort with its whisper-quiet operation, making it suitable for bedrooms and study areas. It also boasts a robust air filtration system that captures dust and allergens, promoting a healthier living environment.
The AB522ACERA stands out in the series with its powerful 2 ton capacity, making it ideal for larger spaces. This model features advanced AI technologies that learn user preferences over time, optimizing performance for maximum comfort. With a sleek design, it blends well with modern interiors, while its energy-efficient operation assists in lowering utility costs.
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Overall, Haier’s air conditioning lineup exemplifies innovation and functionality, catering to diverse cooling needs with features such as smart control, eco-friendly technologies, and enhanced air quality systems. These models are a testament to Haier's commitment to creating intelligent home solutions that offer comfort without compromise.