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 outside 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 
Pipe dia, shall be equal or larger than that of unit piping.(pipe of polyethene; 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.
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.
AB124FAAHA, AB484FCAHA, AB244FCAHA, AB184FCAHA, AB094FAAHA specifications
Haier has emerged as a leading manufacturer of high-performance refrigeration units, and its models AB424FCAHA, AB094FAAHA, AB184FCAHA, AB244FCAHA, and AB484FCAHA are standout examples. Each model boasts unique features tailored to meet the diverse needs of consumers, while simultaneously utilizing innovative technology to ensure energy efficiency and reliable performance.The AB424FCAHA is designed with optimal storage capacity in mind. It offers adjustable shelving and a spacious interior that accommodates larger items easily. With a robust cooling system, it ensures that items are preserved at the ideal temperature. This model incorporates a frost-free operation, eliminating the need for manual defrosting, which saves time and energy.
In contrast, the AB094FAAHA is an excellent choice for smaller living spaces. Despite its compact size, it doesn’t compromise on performance. It includes energy-efficient features that help reduce electricity bills while maintaining freshness and quality of stored items. Its sleek design allows it to blend seamlessly into modern kitchens or dorm rooms.
The AB184FCAHA stands out with its advanced cooling technology, providing precise temperature control. This ensures that food items are kept at their ideal temperatures, extending their shelf life. Additionally, the model includes smart functionalities like temperature alarms that alert users in case of any fluctuations, thereby ensuring food safety.
The AB244FCAHA offers a perfect balance between capacity and energy efficiency. This model is equipped with an inverter compressor, which adjusts the cooling power according to the load. This feature not only saves energy but also significantly reduces noise levels compared to traditional compressors. It’s an ideal option for those seeking a quiet appliance without compromising on performance.
Finally, the AB484FCAHA caters to larger households or those needing considerable storage capacity. This model integrates advanced technologies such as multi-air flow systems that evenly distribute cool air throughout the unit. It also features LED lighting for better visibility, making it easier to find items at any time. With its exceptional storage solutions and high-performance capabilities, it stands out as a top choice for large families or meal preppers.
In conclusion, the Haier AB series showcases a diverse range of features and innovative technologies, ensuring that there is an optimal refrigerator solution for every individual’s needs. Whether for small apartments or larger households, Haier continues to meet the demands of modern consumers with style and efficiency.