Product Name Communication Base Station Data Center Description With the continuous development of information technology and the maturation of 5G technology, efficient management of base stations is becoming increasingly important to ensure everyday communication. However, how to build and operate these base stations is a problem many people are facing. When comparing dedicated base stations to integrated cabinets, many people are opting for the latter.Building a dedicated base station requires careful site selection, a longer construction period, and more time and labor costs. Once built, expanding the usable space is more difficult. In contrast, the integrated cabinet is easy to install, takes up less space, requires less time and labor costs, and can be delivered within a day. In addition, the cabinet is sturdy, corrosion-resistant, and can protect internal equipment well.Through a comparison of dedicated base stations and micro data center, we can directly see the pros and cons of each. This is also why more and more people are choosing to use micro data center to set up base stations. Of course, if there is still space available in an existing dedicated base station, it can be renovated to save costs. However, if there are no old machine rooms available, using an integrated cabinet for construction will be faster, easier and more cost-effective. The base station remote maintenance system can help you realize the efficient management of the base station.The system is equipped with monitoring hosts and front-end sensors installed in the integrated cabinet, which can monitor leaks, smoke, door magnets, UPS, and lightning protection devices inside the cabinet, helping customers achieve efficient management.

With the gradual popularization of cloud computing, big data, and IoT applications, data centers are developing in the direction of green energy saving, modularity, and intelligence, keeping the balance inside the data center is the key to influencing the data center, and one of the influencing factors to keep the balance inside the data center is the power supply, so the next article will combine the types and installation methods of PDU (rack mount power distribution unit) power outlets to show you Therefore, this article will show you how to choose the PDU (Rackmount Power Distribution Unit) power outlets to best ensure the balance of power supply for the equipment in the cabinet. What is a PDU (Rackmount Power Distribution Unit) power outlet? PDU (Rackmount Distribution Unit) power outlet is an electronic device that provides safety protection for various electronic devices, instruments and instruments, and communication lines. When the electrical circuit or communication line because of external interference suddenly generated a spike current or voltage, a PDU (rack mount power distribution unit) power outlet can be a very short time on the shunt, to effectively avoid damage to other equipment in the circuit surge. Every network system needs to use the PDU power outlet, it can provide power for the equipment in the system to ensure normal operation, so the PDU power outlet is the necessary equipment in the network system. The function of PDU power outlet PDU power outlets are generally used in various fields such as data centers, distribution rooms, industrial plants and mines, production workshops, computer rooms and enterprise shopping malls, etc. In these application environments, the main functional role of PDU power outlets is reflected in the following three aspects: 1. the ability to provide a sufficient number of outlets that can be used to support the growing demand for networks; 2. the ability to help network administrators track the power consumed by devices, and provide safe and reliable power for devices that need power at any time; 3. can automatically detect the current and voltage, with the role of power supply overload protection. The difference between PDU power outlets and ordinary sockets What are the differences between PDU power sockets and ordinary sockets? Mainly reflected in the following five points: 1. The two functions are different Ordinary sockets only have the function of power supply overload protection and general control switch, while PDUs not only have power supply overload protection and general control switch but also have the functions of lightning resistance, anti-voltage, anti-static, and fire prevention. 2. The material of the two is different The common socket is made of plastic, while the PDU power socket is made of metal, with an anti-static effect. 3. The application areas of the two are different Ordinary outlets are generally used in the home or office to provide power for computers and other appliances, while PDU outlets are generally used in data centers, network systems, and industrial environments, installed in equipment racks to provide power for switches, routers, and other equipment. 4. The load power of the two is different The common socket cable configuration is weak, its current number is generally 10A/16A, and the rated load power is 4000W, while the PDU power socket configuration is better than the configuration of the common socket, its current number can be 16A/32A/65A and so on to meet more needs, its rated load power can be more than 4000W, to meet the requirements of the server room power. And when the PDU power socket load is too large, it can automatically power off, with a certain fire function. 5. The service life of the two is different The life span of ordinary sockets is generally 2~3 years, and the number of insertions and removal is around 4500~5000, while the life span of PDU power sockets can reach 10 years, and the number of insertions and removal is up to 10000, which is more than 5 times of ordinary sockets. PDU (rack mount power distribution unit) power outlet installation and points to note There are two main installation methods for PDU (Rackmount Distribution Unit) power outlets, which are horizontal and vertical installation: ① Horizontal 482.6*44.4*44.4 mm (1U) rack-mountable PDUs, mainly used with open frame racks and equipped with audio/video equipment. ② Vertical type 0U PDUs make the power distribution outlets closer to the equipment being powered. This mounting style is preferred by data centers because they do not take up rack space and require shorter power cords and easy cable routing management. This type of installation ensures that each power cord is routed in an organized manner. In a data center application environment, it is recommended to choose a vertically mounted 0U size product whenever possible, which makes efficient use of space and reduces cable routing clutter. When using PDU power outlets, we should pay attention to the following four points: 1. Please do not touch the power plug or connector with wet hands. 2. Do not use the PDU power outlet near the water. 3. Do not install the PDU power outlet near any heat source, such as radiators, heaters, amplifiers, stoves, and other heat-generating devices. 4. Do not attach metal objects or any other conductive materials to the power cord of the PDU power outlet. How to choose a PDU (rack mount power distribution unit) power outlet In most cases, choosing the best PDU (rack mount power distribution unit) power outlet will often involve hundreds of models, as well as other challenges such as considering system availability and the ability to power higher power density devices. Once a rackmount PDU is selected, IT administrators need to consider whether the product can support the next generation of IT equipment, taking into account factors such as power capacity, outlet type, and number. Different PDUs (rackmount power distribution units) have many different product features, power ratings, and types of input and output cable connections. Choosing the right rackmount PDU is sometimes not easy, especially when you don't know exactly what equipment is installed in the rack. New trends, including virtualization, converged infrastructures with computing, storage, and networking, and the need for high efficiency, make it important to think holistically about how to choose a rackmount PDU. Choosing the right rack PDU for a particular rack requires information about the equipment in the rack, the power distribution at the site, and the need for other ancillary features. In most cases, there is an "inside-out" sequence for selecting a PDU (rackmount power distribution unit) power outlet: ① Determine the type and number of output outlets; ② Estimating the power distribution capacity; ③ Determine the type of input sockets; ④Select the visualization function and control option of the branch circuit; ⑤ Selecting the appearance and installation method. Summary PDU power outlets have functions that ordinary outlets do not have, and I believe that in the future, PDU power outlets will not only be used in network systems but will also replace ordinary outlets in thousands of homes.

Increased Efficiency: Data center PDUs provide increased efficiency by allowing for the monitoring and management of power consumption in a data center. This helps to reduce energy costs and improve operational efficiency. Improved Safety: Data center PDUs help to ensure that all components in the data center are operating safely and efficiently, reducing the risk of fire or other safety hazards. Enhanced Reliability: Data center PDUs provide enhanced reliability by providing redundant power sources and ensuring that all components are operating within their specified power requirements. This helps to reduce downtime and improve system uptime. Improved Monitoring: Data center PDUs allow for real-time monitoring of power consumption, allowing for better control over the data center environment and helping to identify potential problems before they become critical issues. Scalability: Data center PDUs can be easily scaled up or down as needed, allowing for greater flexibility in managing power needs in a data center environment. This helps to reduce costs associated with purchasing additional equipment or upgrading existing systems as needed. Cost Savings: Data center PDUs can help to reduce costs associated with energy consumption by providing more efficient use of energy resources, reducing the need for additional equipment purchases, and eliminating the need for manual intervention when making changes to power configurations in a data center environment. Remote Management Capabilities: Data center PDUs provide remote management capabilities, allowing administrators to manage their data centers from anywhere in the world via an internet connection or through a secure VPN connection. This allows administrators to quickly respond to any issues that may arise without having to physically be present at the site itself, saving time and money on travel expenses as well as reducing downtime due to unplanned outages or other problems that may arise from not being able to access a site directly. Increased Flexibility: Data center PDUs provide increased flexibility by allowing administrators to configure different settings depending on their specific needs, such as setting different levels of voltage or current depending on the type of equipment being used in the data center environment or setting different thresholds for alarm notifications when certain conditions are met within the system itself (such as temperature thresholds). This helps administrators ensure that their systems are always running optimally while also providing them with greater control over how their systems operate overall. Automation Capabilities: Data Center PDUs can be configured with automation capabilities, allowing administrators to set up automated tasks such as scheduling regular maintenance checks or automatically shutting down certain components if they exceed certain thresholds (such as temperature). This helps reduce manual intervention while also ensuring that all components are operating optimally at all times without requiring constant monitoring from an administrator’s end. Enhanced Security: Data Center PDUs provide enhanced security by providing physical security measures such as locking mechanisms and tamper-proof enclosures which help protect against unauthorized access into sensitive areas within a data center environment while also preventing tampering with any components within it (such as cables). Additionally, many models come equipped with advanced encryption technologies which help protect against malicious attacks from outside sources attempting to gain access into a system’s internal networks or databases via its external connections (such as Ethernet ports).

A modular data center is a type of data center that uses prefabricated components to create a more efficient and cost-effective solution for businesses. This type of data center is becoming increasingly popular as businesses look for ways to reduce their IT costs while still maintaining the same level of performance. Modular data centers offer several advantages over traditional data centers, including faster deployment, scalability, and energy efficiency. The first advantage of modular data centers is their ability to be deployed quickly. Because the components are pre-fabricated, they can be assembled on-site in a fraction of the time it would take to build a traditional data center from scratch. This means that businesses can get up and running quickly without having to wait for construction or installation delays. Additionally, modular data centers are much easier to expand than traditional ones, allowing businesses to scale up their operations as needed without having to invest in additional infrastructure. Another benefit of modular data centers is their energy efficiency. By using pre-fabricated components, they require less power than traditional data centers and generate less heat, which helps reduce cooling costs. Additionally, many modular systems are designed with energy efficiency in mind, making them even more efficient than traditional systems. This makes them an attractive option for businesses looking to save money on their IT costs while still providing reliable performance. Finally, modular data centers offer greater flexibility when it comes to configuration and customization. Because the components are pre-fabricated, they can be easily rearranged or reconfigured as needed without having to invest in additional hardware or software. This allows businesses to tailor their setup according to their specific needs without having to purchase additional equipment or services. Overall, modular data centers offer several advantages over traditional ones that make them an attractive option for businesses looking for a cost-effective solution that provides reliable performance and scalability. They are easy to deploy and configure, require less power than traditional systems, generate less heat which reduces cooling costs, and provide greater flexibility when it comes to customization and configuration options. For these reasons, they are becoming increasingly popular among businesses looking for ways to reduce their IT costs while still providing reliable performance.

As we enter the gates of 2023, the data center industry is bound to see faster and newer developments in the new year. We will see the flexibility and immediacy of cloud computing, higher capacity networks and data centers, and data centers that will have more power backup and new energy sources for local consumption. What these will bring, first and foremost, is a more diverse experience. A more personalized user experience will be enabled by higher capacity and proliferation of edge data centers, as well as more flexible 5G and Wi-Fi6. At the same time, operations between various digital touchpoints will be more seamless. In addition, the data center industry will see an increasing demand for speed, with data flowing to and through data centers likely to be faster and with greater capacity. With mid-band 5G and Wi-Fi 6 technologies in deployment, HD video, AR/VR/XR and AI-enabled applications are now able to send more data to the edge and core data centers for processing and storage. At the same time, the industry's growing understanding of sustainability, rising energy costs, and the growing need for sustainable business have forced companies to pay more attention to sustainability, and their environmental footprint has a direct impact on their operating costs and residuals. Data center sustainability is not a question that can be easily answered and requires multiple factors such as the evolution of power and cooling efficiency, monitoring of equipment operation, the flexibility of facilities, and even adjustment of corporate management models. The 9th China (Shanghai) International Data Center Industry Exhibition and the 4th China Data Center Green Energy Conference, organized by CDCC and hosted by Longo Exhibition (Shanghai) Co. As an important product exhibition and technology exchange platform for China's data center industry, IDCE has attracted hundreds of famous enterprises from home and abroad, including Ali Cloud, Tencent Data Center, Huawei, ZTE, etc. In 2022, the exhibition area of IDCE was nearly 11,000 square meters, receiving 11,032 professional visitors and nearly 160,000 online picture and live video viewers, an undeniable industry event. This is an undeniable industry event. At that time, the industry leaders will focus on the development of green energy in data centers, discuss the new trends and directions of the data center industry under the background of the implementation of the national "carbon peak, carbon neutral" strategy, and provide new momentum and new thinking for the development of data centers and the energy industry.

What is Data Center Cooling? Data centers require a cool environment for the processor to function successfully, because excess heat can damage the systems and result in data loss or interrupted information flow. In data centers, cooling systems are used to prevent such damage and preserve the air temperature within acceptable limits. Data center cooling solution is used to maintain ideal environmental conditions for information technology equipment (ITE) operation. The technology eliminates ITE heat and transfers it to the heat sink. Thus, it can be inferred that data centers cannot function efficiently and can result in a system failure in the absence of an appropriate cooling system. Why do data centers need cooling? One of the most important and less understanding processes in the critical IT environment is data center heat removal. As the latest computer equipment is smaller and uses the same or more electricity than the replaced equipment, more heat is generated in data centers. Precision cooling and heat rejection systems are used for collecting and transporting this undesired heat energy into the outer atmosphere. 1. Increasing need for energy-efficient data center facilities The energy consumption in the ICT sector has increased exponentially in recent years. The data centers, recently experiencing unprecedented growth in size and population, form an integral part of today’s ICT. The Tech giants such as Google, IBM and Microsoft have large cloud and app hosting data centers. Several studies have been established for energy consumption of data centers, these studies emphasize upon the rising need for evolving strategies for energy efficiency. Heat generated from highly populated data centers requires huge cooling units to maintain the temperatures within the operational range. 2. Rising shift toward digital transformation through connected technology Lately, digital transformation has gathered a lot of attention. It not only includes deployment of new technologies, but also the alteration of business processes and models that can completely leverage such technologies. It helps organizations to obtain unmatched productivity levels, improve customer experience, influence innovation and enlighten competitive benefits. Digital transformation is altering the nature of the data center, and novel technologies are rapidly placing more demand on data centers and data center services. Types of Solutions · Air Conditioners In basic terms, air conditioning involves removing heat and humidity from the inside of an occupied area to improve the occupants comfort. In both domestic and commercial environments, air conditioning can be used. This process ensures a more comfortable interior environment for humans, however air conditioning is also used to cool/dehumidify roommates filled with electronic heat-producing devices such as computer servers, power amplifiers, and some sensitive products, like artifacts, even for display and storage. · Precision Air Conditioners Precision air conditioning is designed to manage sensitive heat (humidity without the emanation of a machine), while latent heat (humidity with the emanation of persons) is managed with comfort/standard air conditioners. Designed for many different applications, high-precision air conditioning including cooling of the data center, medium and low-density server environments, telecom switching systems, medical operating theaters, and a clean-room environment is essential. · Chillers Data centers constitute a mix of computing elements, networking infrastructure, storage systems along with power management and cooling capabilities all of which offer opportunities for improving energy efficiency and achieving more sustainable data centers. With air-cooled chillers, heat is removed from the returning chilled water is rejected to a device called an air-cooled condenser that is typically integrated with the chiller. This type of chiller is known as a packaged chiller and can also be integrated into a cooling facility module.

1. different basic concepts Ordinary air conditioners generally include household air conditioners, central air conditioners in residential areas, and air conditioning systems in offices and commercial office buildings. The function of this type of air conditioner is to create a good living environment for indoor air, provide people with a comfortable working and living environment, and make people in this space feel comfortable. The precision air conditioner is designed to meet the requirements of the special process and specific environment of the precision equipment. Its purpose is to precisely control its temperature, humidity, etc. and require it to be controlled within a certain range. It is also called constant temperature and humidity air conditioner, which is characterized by large air volume and heat load Variety. 2. Product focus Due to different design uses, the product focus will also be very different. 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. 3. Different control systems Ordinary air conditioners only have a basic control system. According to their own heating and cooling needs, people operate through the infrared remote control or the smart remote control downloaded from the mobile APP. The intelligence is relatively moderate; and cooling and dehumidification can only be performed at the same time. Direction local air circulation. Precision air conditioners have a high-precision, responsive, microprocessor-based intelligent control system that can quickly respond to changes in the external environment, thereby ensuring that environmental changes remain within the setting range required for a stable environment. For example, human-computer interaction interface, alarm protection, network monitoring and other functions. 4. Different degrees of air filtration Ordinary air conditioners use coarse filters, which cannot remove enough dust particles. The dust will adhere to the high-efficiency chips to a large extent, which will seriously affect the service life of related components and cannot meet the purification requirements of computers. Most common air conditioners use residential-type air filters with a filtration efficiency of only 10%. This is not enough for a data center environment. The precision air conditioner uses a high-efficiency filter, its efficiency can reach 20%~30%, and it meets the ASHRAE standard, which can filter out the dust in the air in a timely and efficient manner, which can effectively prevent the dust from adhering to the high-frequency chip and cause a short circuit due to carbonization. Improve the cleanliness, prolong the service life of related parts, and reduce operation and maintenance costs. 5. Different operating performance and cost Common air conditioners used in most office buildings run for an average of 8 hours a day, 5 days a week, while some commercial places, such as supermarkets and shopping malls, run an average of 12 hours a day, 7 days a week. Sometimes there are environmental changes or special needs that increase the runtime. For precision air conditioners, no matter what the external environment is, most data centers require uninterrupted operation 24 hours a day, 365 days a year. And those ordinary air conditioners with outdoor heat exchangers generally cannot operate when the external ambient temperature drops below 32°F because the pressure is too low. However, precision air conditioners operate normally at -30°F, while glycol refrigeration systems cool normally at -60°F. Although the initial investment of precision air conditioners is basically much higher than that of ordinary air conditioners. However, the annual operating cost of ordinary air conditioners is higher than that of precision air conditioners by $243/per ton of sensible cooling capacity. This is consistent with the principle generally recognized by the industry, that is, the refrigerating capacity of 3 ton of ordinary air conditioner is equivalent to 2 ton of refrigerating capacity of precision air conditioner. Therefore, for those small projects, in the case of sufficient funds, it is recommended to consider both the initial investment and operating costs; and for some large projects, it is still recommended to use precision air conditioners, which are designed for uninterrupted operation throughout the year. Intelligent control system, constant temperature and humidity functions, components and redundant functions, etc., will greatly improve the reliability of equipment operation, and will greatly reduce operation and maintenance costs in the later stage.

As we all know, the data center is an off-list "high energy" industry. In the more than ten years from the birth to the development of the data center industry, the total power consumption of China's data center industry has increased by more than 10% every year. Statistics show that in 2020, the total power consumption of data centers in China will reach 200 billion KWh, accounting for more than 2%. By 2025, the proportion is expected to double to 4.05%. And in the operating costs of the data center, the cost of electricity accounts for about 60%-70%of the total cost. Although modern data centers can reduce the PUE value through various energy -saving measures and improve the efficiency of electricity consumption, the cost of electricity consumption is still the big head of the overall cost. Energy storage research in data centers is one of the solutions proposed to reduce the cost of data centers. Of course, the data center energy storage system does not refer to the UPS battery room generally configured in the current data center. The current UPS battery room energy storage purpose is only to provide the data center for several minutes to tens of minutes for the buffer processing period for data centers. It does not support the long -term smooth operation of the data center, but also needs to be used with reserve diesel generator. The data center energy storage system needs to provide at least the energy supply of the data center. Its energy storage and power supply capacity are far beyond ordinary battery rooms. Generally speaking, the energy storage system will bring the following benefits to the data center:1. Balance and inhibit Peak Valley Electricity PriceIn order to balance electricity consumption at different times, many grids will provide different electricity prices of waves and valleys. The energy storage system can use its own capacity to store a large amount of electricity in the low price period of the valley, and use the function of the energy storage system to reduce the use of high -priced electricity during the peak of electricity consumption. Some energy storage systems can even supply power to the power grid to achieve the energy arbitrage of "low buying and selling".2. Green energy useFor wind, light, and water are not stable clean energy, the data center has always been far away. However, with the energy storage system, clean energy such as wind, light, and water can enter the energy storage system first, and finally output stable power to the data center. The data center of the energy storage system is generally paired with the construction of optical storage power generation facilities.3. Reduce the use of dieselIn the mainstream data center energy spare system, diesel generators are the most important equipment. Its "heavy" is not only important in status, but also a heavy cost. The construction cost of diesel generators and diesel storage facilities is on the one hand. Daily maintenance and start -up diesel consumption are even more staggering. The emergence of energy storage systems can reduce the dependence of data centers on diesel generators to a certain extent. Of course, in terms of objective perspective, the intervention of the energy storage system will also increase the use of clean energy and reduce carbon emissions of data centers.

While there are several different types of precision air conditioning or thermal management systems designed to meet the unique needs of each application, all systems generally work in the same way. The device uses one or more units installed in the IT space to provide the optimal air temperature for the IT equipment's inlet fans, whether around the room perimeter, in a row, or on a rack or ceiling (if floor space is at a premium) . These internal units use refrigeration or rely on cold water or glycol based coolants to cool the air. They use fans and airflow to direct cool air to the right spot. At the same time, the hot air produced by the equipment is collected and exhausted from the IT space. The cooling unit of the thermal management system removes heat in one of several ways: By directing it to the chilled water plant of the building. Chilled water cooling systems, such as the innovative Coolnet Cybermaster Series, are a good option for large data centers that can use chilled water equipment. For smaller spaces or high-rise buildings where air cannot be excluded, compact perimeter cooling solutions or even precision ceiling-mounted cooling systems such as the chilled water version with small footprint Coolnet Cool-smart efficiently captures and sends heat to a building's chilled water plant through a common plumbing loop. Say no to it by being outdoors. Air-cooled direct expansion systems pair an indoor computer room air conditioning (CRAC) unit with an outdoor heat rejection unit and use the outdoor ambient air to cool the refrigerant. These systems are very reliable because they do not rely on other building systems to cool the exhaust heat. However, each unit requires its own plumbing and outdoor cooling unit, which takes up valuable space. By rejecting it into a warm building water cycle. Water-cooled direct expansion systems, such as Coolnet Cybermaster DX Series connect multiple indoor CRAC units to a warm building water circuit, usually a cooling tower system, with the refrigerant cooled by process water. Small to medium rooms in facilities where building water systems exist are ideal for this solution. By connecting to an outdoor fluid cooler, such as a dry cooler. A glycol cooled direct expansion system connects multiple indoor CRAC units to a dry cooler circuit and a pumping system that circulates warm water glycol antifreeze to cool the refrigerant. Small to medium sized rooms can benefit from these types of systems, but must have enough roof space to accommodate the dry cooler and pump. Direct cooling of equipment by using specialized liquids. Liquid cooling is emerging as an alternative to IT thermal management. If you've ever burned your fingers badly, you know that air (i.e. blowing on your fingers) is usually not enough to relieve the burn. You need to move your fingers in cold water to relieve stress. Breakthrough liquid cooling systems use liquid instead of air to cool IT equipment for better results. Cold liquid is circulated to cold plate heat exchangers embedded in IT equipment. This provides extremely efficient cooling because the cooling medium goes directly to the IT equipment rather than cooling the entire space. However, it requires dedicated IT equipment with built-in liquid/fluid heat exchangers. Liquid cooling is most practical for high-density or high-performance computing applications where the heat is most intense.

Staff in data centers or computer rooms will encounter unexpected situations where precision air conditioners are not cooling. Through this article, we will briefly analyze the reasons why the precision air conditioner in the computer room does not cool. First, too little refrigerant or slight qualitative change. 1. Leakage occurs in the refrigeration pipeline and its components and the interfaces between them after long-term work. 2. The refrigerant flows in the pipeline, and there will definitely be a small amount of loss after the air conditioner works for a long time; with the passage of time, the refrigerant will also undergo slight qualitative changes. Second, the air filter is dirty. 1. The air filter should be replaced regularly according to the climate and environmental conditions of the region. If the air filter is too dirty, the return air will be blocked, and the heat exchange of the evaporator will not work properly. 2. In order to save costs, some companies clean the air filter with water. This operation will cause the filter to change from filament to sheet, and the return air resistance will increase. It will also make the air filter mesh larger, and the filtering effect is poor. A lot of dust will be directly adsorbed on the evaporator fins through the filter, which will seriously affect the working effect of the evaporator. Third, the pipeline insulation layer is damaged or the pipeline is too long. 1. The damage of the insulation layer of the pipeline makes the refrigeration pipeline directly contact with the air, and the heat exchange occurs on the pipeline in advance. 2. Too long pipeline will reduce the cooling effect. Fourth, the compressor problem. The compressor directly affects the cooling capacity, and the degree of damage to the compressor has different effects on the cooling capacity. Fifth, other reasons. 1. The condenser and evaporator are not clean. 2. The expansion valve fails. 3. The filter fails. 4. Refrigerant quality change. 5. The indoor fan speed is not enough. 6. There are too many heating equipment in the room, and the sealing of the machine room is not strict. 7. The quality of the precision air conditioner is unqualified. 8. Obstruction of the air supply duct. 9. The refrigeration pipeline is too dirty and blocked.

In some IT spaces, such as servers or technical rooms located in administrative buildings, facility managers often rely on the building's comfort cooling system to maintain the environment in the IT space. Granted, commercial air conditioning solutions can play a role in controlling temperature, humidity and air quality in these rooms. But these systems fall short in a number of ways, starting with comfort cooling of personnel spaces and precise cooling of IT spaces being designed for different purposes. Specifically, these professional cooling solutions are designed to do the following: Handle the unique concentrated heat load created by IT equipment. Today's complex IT equipment generates a lot of heat. When you consider the continued increase in industry average rack densities and the growth of smaller edge sites, it's clear that commercial building air conditioning systems cannot accommodate elevated central heat loads. Additionally, many spaces used for IT today were not originally designed to house critical equipment, creating less than ideal environmental conditions that can create additional cooling challenges that make comfort cooling solutions less efficient . On the other hand, data center-grade cooling solutions are designed to control heat in these spaces. These thermal management systems are designed to capture heat in small, dense spaces and remove it in one of several ways, depending on the type of system chosen. Operates 24 hours a day, 365 days a year, regardless of the outside temperature. Office buildings don't need air conditioning when it's cold outside. But the IT space remains the same. Just as grocery stores need specialized equipment to keep frozen peas frozen even when the outside temperature drops below zero, data centers and other IT spaces need a way to dissipate heat regardless of the outside temperature. But most comfort cooling systems are only designed to operate when the outside temperature is above 55 degrees Fahrenheit. Additionally, some commercial AC systems shut down after hours or on weekends, leaving always-on computer equipment unprotected, regardless of the outside temperature. Data center-grade cooling systems overcome these issues and are specifically designed to run all the time - even when the outside temperature plummets to 30 degrees Fahrenheit or 2 a.m. Sunday. This ensures that your device is always properly cooled. Use most of the power to control room temperature. With a typical building cooling system, cooling capacity is distributed to cool rooms and remove moisture (humidity) from the air to keep people comfortable during warmer times of the year. 40% of the total capacity of this system can be used to handle moisture. In this case, the sensible heat ratio is 0.60, which means that only 60% of the cooling capacity is earmarked for changing the temperature of the air. In the IT world, this amounts to a lot of waste. IT equipment tends to generate dry, intense heat, so it hardly needs as much capacity to achieve humidity. In fact, if a 100-kilowatt (kW) comfort cooling system is purchased to cool a 100-kW IT load, the solution may fail because the system's IT cooling capacity is only around 60 kW. Most precision cooling systems today are designed for a sensible heat ratio of at least 0.90. This is 90% of the cooling capacity dedicated to cooling IT equipment and the remaining 10% of the cooling capacity dedicated to removing moisture that could seep into the room from the outside. Many Vertiv™ thermal management systems offer a sensible heat ratio of 0.95.

Air conditioners can regulate temperature, humidity and air cleanliness, so air conditioners are used in many industries, but for some specific functions of the room can not do, need to install precision air conditioning, such as machine rooms, laboratories, instrument rooms, museum storage rooms and other places. Precision air conditioners are also known as constant temperature and humidity air conditioners, which can accurately control the humidity and temperature of the environment. Precision air conditioners are characterized by large air supply volume, small enthalpy difference, high sensible heat ratio and high air purification rate. The humidity change rate is less than 10% RH/h (when the humidity is set at 40%-60%) and the humidity can be accurate to ±3%, and the temperature change rate is less than 5℃/h (when the temperature is set at 15℃-30℃) and the temperature can be accurate to ±0.5℃. The design life of precision air conditioning can reach 10 years, continuous operation time up to 86,400 hours, the average failure-free rate reached 25,000 hours, the better maintenance of precision air conditioning can run about 15 years. The benefits of using precision air conditioning in the server room are mainly as follows. 1. High temperature constancy. The high-speed operation of the equipment in the server room will bring a large amount of heat, in order to maintain the normal operation of the equipment, it is necessary to control the equipment in the state of constant temperature environment. If the temperature of the room can not be constant, it is easy to cause the electronic components of the equipment to reduce the life, when there is a high ambient temperature brought about by the local overheating of the equipment, will cause the equipment to burn or downtime. 2. High humidity constancy. The humidity of the environment in the server room affects the service life of the equipment and brings safety hazards. If the humidity of the room is too high, the low-temperature environment will appear too much condensation, dripping on the equipment to cause burn or even fire; if the humidity of the room is too low, after the air becomes dry, it is easy to generate static electricity, which will also cause certain dangers. 3. High air cleanliness. There are many precision instruments and electrical components in the server room, fine dust can easily lead to short circuits. Precision air conditioning has a better ability to filter air impurities, the air sent into the room are clean, reducing dust scattered on the equipment components, triggering equipment short-circuit, overheating, and the phenomenon of data errors. 4. Air supply volume. Precision air conditioning equipment are relatively large, through a special air duct for air treatment after feeding, in the face of heat dissipation is relatively large electronic equipment without sufficient air volume is difficult to achieve uniform cooling of equipment, and precision air conditioning has more than ordinary air conditioning more than 1 times the volume of large air supply, can quickly pump away the heat in the room, to achieve the purpose of rapid cooling equipment. In short, ordinary air conditioning is facing the living environment of personnel, for the server room, heat dissipation is relatively large, the higher demand for air conditioning heat dissipation; cooling the continuous working time is relatively long, almost all 24 hours in a row; the temperature should be controlled between 22 ℃ -24 ℃; the humidity should be controlled between 50% ± 5%; the cleanliness should be controlled in ASHRAE 20% +, the more accurate the control is the better The more precise the control is, the better the control is; to cope with the outdoor ambient temperature is also stronger, can withstand -35 ℃ to -42 ℃ environment, for the above conditions precision air conditioning can do, ordinary air conditioning can not meet. Precision air conditioning to ensure constant temperature, constant humidity, constant cleanliness and long life of the server room.