When the emergency operation switch is pressed,the" Pi "sound is heard once, which means the start of this operation.
In this operation, the system automatically selects the operation modes, cooling or heating, according to the room temperature.
It is not possible to operate in dry mode.
Continue to press the test operation switch for more 
than 5 seconds. After you hear the "Pi" sound twice, 
release your finger from the switch: the cooling operation 
starts with the air flow speed "Hi".
HSU-07HV03, HSU-09HV03, HSU-12HV03, HSU-18HV03, HSU-22HV03, HSU-12HVB03 specifications
Haier, a global leader in home appliances, offers a range of highly efficient air conditioning units designed to provide optimal comfort in various environments. Among their notable products are the HSU-07HV03, HSU-09HV03, HSU-12HV03, HSU-18HV03, HSU-22HV03, and HSU-12HVB03 models, each boasting an array of features and cutting-edge technology suited for different cooling needs.The HSU series showcases advanced inverter technology, which enhances energy efficiency by adjusting the compressor's speed according to cooling requirements. This results in significant energy savings, lower electricity bills, and reduced environmental impact. Users benefit from consistent temperature control, as the inverter technology reduces temperature fluctuations, leading to a more comfortable indoor environment.
All models in this series are equipped with high-performance filters that purify the air and eliminate allergens. The multi-stage filtration system effectively captures dust, pollen, and other pollutants, ensuring a cleaner and healthier atmosphere for occupants. This feature is especially beneficial for individuals with allergies or respiratory conditions.
Additionally, the HSU series incorporates a quiet operation mode, allowing these air conditioners to function with minimal noise, making them ideal for bedrooms, offices, and other quiet spaces. The low-noise technology ensures peace and tranquility, without compromising on performance.
Smart features are also a significant highlight in the HSU-12HVB03 model. It supports Wi-Fi connectivity, enabling users to control the unit remotely through a smartphone app. This feature streamlines the cooling process, allowing for precise temperature regulation from anywhere in the home or office, increasing convenience and comfort.
The design of these units is sleek and modern, blending seamlessly with any interior decor. Their compact size makes them suitable for residential and commercial spaces alike, without taking up valuable floor space.
With a variety of capacities ranging from 7,000 to 22,000 BTUs, the HSU models cater to different room sizes and cooling demands. This flexibility ensures that users can select the perfect unit to meet their specific requirements, whether for small apartments or larger living areas.
In summary, the Haier HSU series, including HSU-07HV03, HSU-09HV03, HSU-12HV03, HSU-18HV03, HSU-22HV03, and HSU-12HVB03, stands out for its energy efficiency, advanced air purification, quiet operation, and smart features. These characteristics make them a reliable choice for anyone looking to enhance their indoor comfort while maintaining a focus on sustainability and health.