What is Precision Air Conditioner
Precision Air Conditioning (PAC) or Precision Cooling, a climate-controlled air conditioning system. It is a system for rooms that require special temperature and humidity control. The air conditioning (PAC) can precisely control the climate. Which is suitable for use in computer rooms, data center rooms, telecommunication rooms and laboratory rooms because it is a room that requires a lot of temperature and humidity control.
Benefits of Precision Air Conditioner
High Precision and Control: Precision air conditioners are designed to deliver exact temperature and humidity levels, ensuring the stability of sensitive environments. This precision is crucial for industries where even minor deviations can lead to equipment malfunction or data loss.
Continuous Operation: These systems are built to run 24/7, ensuring that critical equipment remains operational at all times. The robust design of precision air conditioners minimizes the risk of downtime, which can be costly for industries relying on continuous operations.
Energy Efficiency: Precision air conditioners are equipped with advanced technologies like variable speed compressors, electronic expansion valves, and EC fans that optimize energy consumption. This efficiency not only reduces operational costs but also aligns with sustainability goals, making PACs a green choice for modern industries.
Scalability: Whether it's a small server room or a large data center, precision air conditioners can be scaled to meet the specific cooling requirements of any space. This flexibility makes them ideal for growing industries where cooling needs may change over time.
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Why Choose Us
Excellent product quality
We take pride in our products because every major components requires the perfect combination of modern technology.
Rich experience in production
10 year experience in Chiller manufacture. Above 50% of our staff has more than 10 year experience in HVAC industry.
High quality
We distinguish ourselves in the chiller market by flexibility of design, by ensuring the prefect performance and by always putting our customer first.
After-sales service
We have professional technician, can provide Video /Phone Training, 24 hour online service. We will send technician to overseas if needed.
Working principle of Precision Air Conditioning (PAC)
Precision Air Conditioning (PAC) is a cooling system designed for use in server rooms. which has a similar working principle as an air conditioner, but with higher precision in controlling temperature and humidity.
The principle of operation of the Precision Air Conditioning (PAC) is to use the appropriate cooling system to control the temperature and humidity in the server room to be within reasonable limits. It uses an evaporator coil to lower the air temperature and a blower system to distribute cool air into the server room. automatically appropriate.
In addition, the Precision Air Conditioning (PAC) system has an air filtration system to maintain the quality of the air inside the server room. It will filter dust and chemicals from the air. This prevents the accumulation of dust and chemicals in the equipment inside the server room and helps reduce equipment damage in the server room as well.
Types of Precision Air Conditioner
Air-Cooled Precision Air Conditioner
An air-cooled system removes heat from the refrigerant by transferring it to the outside air. The condenser, located outdoors, dissipates the heat into the atmosphere, making this method highly reliable and widely used.
Water-Cooled Precision Air Conditioner
In water-cooled systems, refrigerant heat is absorbed by water, which is then circulated to a cooling tower where the heat is released. These systems often include water-cooled plates or shell-and-tube heat exchangers, which are highly efficient for large-scale cooling needs.
Chilled Water Precision Air Conditioner
Chilled water systems use cold water that circulates through a coil inside the air conditioning unit. This type of system doesn't require a compressor, and its cooling capacity depends on the temperature of the water and air circulation conditions in the room.
Dual Cooling Source Precision Air Conditioner
To enhance system reliability, dual cooling source air conditioners combine two cooling methods, typically air-cooled and chilled water or water-cooled and chilled water. One source acts as the primary system, with the other serving as a backup.
Ethylene Glycol Precision Air Conditioner
Designed for cold climates, ethylene glycol systems prevent freezing by mixing glycol with water. This solution is commonly used in regions where temperatures drop below freezing, ensuring reliable operation.
Double Coil Chilled Water Precision Air Conditioner
These units feature two separate chilled water coils connected to independent sources. This setup provides redundancy, improving system reliability and ensuring continuous cooling even if one source fails.
Heat Pipe Precision Air Conditioner
Heat pipe systems are large-scale cooling solutions that rely on passive heat transfer. Depending on the design, they can take different forms such as ceiling-mounted systems or heat pipe rows. This method is efficient for high-heat environments.
Natural Cooling Precision Air Conditioner
Natural cooling systems utilize outdoor air for cooling, either directly or indirectly. These systems are often custom-built for specific environments.Controller mode free cooling function.
What is the Difference Between Precision Air Conditioners and Ordinary Air Conditioners?
Ordinary air conditioners are designed to "provide people with a comfortable working and living environment". Its applicable object is people, and its application scenarios are mainly in semi-open areas where people are active: such as living rooms, bedrooms, exhibition halls, offices, etc. Ordinary air conditioners do not have the function of "constant temperature and humidity", and the temperature difference range is 1 °C. Therefore, ordinary air conditioners pay more attention to the design of comfort, low noise, low air supply and low wind speed during use.
Precision aircond are designed to "provide a specific operating environment with constant temperature and humidity for precision devices such as IT equipment". This is a high-precision air conditioner specially designed for computer rooms. In order to ensure good heat dissipation of computer or server chips, the application scenarios include computer rooms, laboratories, large medical equipment rooms and other high-precision fields. Its service object is related equipment that maintains the continuous operation of the computer room: such as IT equipment, power distribution system, power supply equipment, etc. The precision air conditioner has the function of "constant temperature and humidity", and the temperature difference range can be controlled at 0.1 degrees Celsius or even higher. Therefore, precision air conditioners pay more attention to the design of precise control of temperature and humidity in the equipment room and timely control of cleanliness.
Application of Precision Air Conditioner
Data Centers and Server Rooms
Data centers and server rooms house critical IT infrastructure that generates substantial heat. Precision air conditioners are vital in these environments to ensure that the servers and networking equipment operate within their optimal temperature range.
Telecommunication Facilities
Telecommunication facilities, such as cellular base stations and exchange rooms, require stable cooling to maintain the performance and reliability of the equipment.
Medical Facilities
In healthcare settings, precision air conditioners play a critical role in maintaining stable temperatures for sensitive medical equipment, laboratories, and operating rooms.
Research and Laboratories
Laboratories conducting delicate experiments or storing temperature-sensitive materials benefit from precision air conditioners to ensure precise and consistent conditions.
Industrial Process Cooling
Certain industrial processes demand precise cooling to guarantee high-quality production and product integrity.
Aerospace and Defense
In aerospace and defense applications, precision air conditioners are essential for controlling the environment in flight simulators,radar control rooms, and satellite ground stations.
Museums and Archives
Preservation of artifacts, artworks, and historical documents requires strict temperature and humidity control, where precision air conditioners are instrumental.
Precision air conditioners are specifically engineered for this purpose, designed to operate non-stop, 24 hours a day, 365 days a year. These systems are equipped with components selected for high reliability and redundancy to ensure zero downtime, regardless of outside weather conditions or indoor heat intensity. Precision air conditioner addresses these challenges by offering temperature control within a narrow range, typically around 18 to 27 degrees Celsius (64 to 80 degrees Fahrenheit). Some advanced precision AC systems also have built-in redundancy to ensure continuous operation even in the event of a unit failure.
IT is an ever-evolving industry. With automation and digitalisation becoming the norm of the day, enterprises and organisations are making more room to house bigger and more powerful equipment to run their IT network environments. The more powerful the equipment, the more work efficiency it creates. But, this high-end equipment has a big risk: They generate a lot of heat.
Now, imagine an IT network room with these powerful servers connected to more than a dozen computer systems. The equipment-generated heat gets trapped in the space, and without adequate ventilation, the temperature can escalate to dangerous levels that shorten the lifespan of other devices. Here's where precision air conditioners come into play. These devices allow sensitive IT equipment to remain running and operable and prevent any downtime.
Compressor
The compressor is the heart of the air conditioning system. It's responsible for pumping refrigerant gas and maintaining the desired cooling capacity.This crucial component determines the efficiency and performance of the precision air conditioner.
Condenser
The condenser plays a vital role in releasing heat from the refrigerant gas. It is typically located outside the controlled space and helps dissipate the heat absorbed by the evaporator. The condenser can be air-cooled or water-cooled depending on the specific requirements.
Evaporator
The evaporator is responsible for cooling and dehumidifying the air inside the controlled space. It receives the liquid refrigerant from the expansion valve and facilitates heat exchange, allowing the refrigerant to evaporate and absorb heat from the surrounding air.
Expansion Valve
The expansion valve regulates the flow of refrigerant entering the evaporator. It controls the pressure and temperature of the refrigerant, ensuring optimal performance and efficiency of the precision air conditioner.
Filter/Dryer
The filter/dryer removes impurities and moisture from the refrigerant, ensuring a clean and reliable operation. It helps extend the lifespan of the system while maintaining its efficiency.
Blower/Fan
The blower or fan is responsible for circulating the conditioned air throughout the controlled space. It helps maintain uniform temperature and humidity levels by ensuring proper air distribution and eliminating hot spots.
Control System
The control system is the brains of the precision air conditioner. It monitors and regulates the temperature, humidity, and other key parameters. Advanced control systems allow remote monitoring, adjustment, and data logging for optimal operation and energy efficiency.
How to Maintain Precision Air Conditioner
Regularly strengthen or replace the belt of the precision air conditioner indoor unit fan. Due to the material, the belt of the precision air conditioner indoor unit fan in the computer room will eventually age, loosen or even break after long-term uninterrupted use, resulting in reduced fan speed or even stop, affecting the air supply volume and reducing the cooling effect.
Clean the outdoor filter of the precision air conditioner in the machine room. Because the filter is too dirty or even blocked, it will cause the compressor low pressure alarm and the refrigeration system failure.
Regularly clean or replace the humidification tank. After working for a long time, the inside of the humidification tank will be rusted and scaled, and the external heating electrode of the humidification tank will also be rusted, which will affect the humidification effect.
Regularly clean the cooling fins of the precision air conditioner outdoor unit. When the heat sink of the precision air conditioner outdoor unit accumulates too much dirt and dust, it is necessary to clean the heat sink in time.
The heat sink of the outdoor unit of the precision air conditioner needs to be cleaned regularly, at least once every six months. The cleaning of the heat sink of the outdoor unit can be carried out under the normal working condition of the precision air conditioner in the machine room.
Regularly clean the filter screen of the return air outlet of the indoor unit of the precision air conditioner. After taking out the filter, if there is only dust on the filter, just dust it off or use a vacuum cleaner to absorb the dust; if the filter is seriously clogged, rinse it with a neutral detergent and dry it.
Regularly alternately use the main and standby units of the precision air conditioner. This can prolong the service life of the unit.
The humidity should not be set too high or too low to avoid frosting or condensation. The temperature and humidity parameter setting standard for precision air conditioners is generally 22±1° for temperature and 60±5° for humidity.
FAQ
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