What Is A Close Control Unit Ccu In Hvac
Close control air conditioners (CCUs), computer room air conditioners (CRACs), and server room air conditioners are other names for CCUs. The closed control unit keeps the temperature and humidity at approximately the same level. Data center cooling is the most crucial component of its operation. The appropriate cooling system is the most important choice when developing a data center. The data center's uptime correlates closely with the close control unit's reliability. Adding extra backup units to the cooling system to increase its reliability is possible. Moving the heat from IT equipment outdoors in data centers is critical to prolong the equipment's lifespan and prevent failure.
Datacenter cooling may be roughly divided into three basic types based on the medium that transfers heat generated within the data center to the outside. These are the Dual Fluid Cooling System, the Cooled Water-Cooled System, and the Air-Cooled System (DX Unit). Several more techniques are less utilized besides these groups, such as water-cooled and glycol-cooled systems. Every HVAC system type has benefits and drawbacks of its own.
CCUs are frequently used in locations like data centers, clean rooms, labs, hospitals, and industrial plants where it's essential to maintain exact environmental conditions. These machines frequently have advanced controls and sensors installed to monitor and modify conditions within strict limits.
DX Type Data center cooling systems:
The DX Unit (Direct Expansion) close control unit is the air-cooled system. Refrigerant is used as a medium to transfer heat produced inside and outside data centers. It consists of an external air-cooled condenser, an indoor unit, and a refrigerant pipe connecting the two units. The refrigerant travels between interior and exterior condensers to remove heat produced in data centers. After that, the hot refrigerant cools at the external condenser. Compression, expansion valve, evaporator coil, heater, blower fan, and filter are components of indoor units. An alternative is to put a compressor in the outside condensing unit. The DX system has the advantages of being completely autonomous, having a low total cost, and being simple to maintain. The length of the refrigerant pipe, however, has a limit. We must construct a glycol-cooled system for lengthy pipes.
The Close Control Air Conditioning System's main benefits
Precise Control of Humidity & Temperature Along with Cleanness:
Electronic and information processing equipment needs a clean, precisely controlled environment with low humidity and temperature. In addition to offering exact temperature and humidity control, the Close Control Unit filters air to eliminate harmful airborne particles.
Temperature and humidity control:
The closed control unit provides accurate temperature and humidity control. Comfort air conditioners, on the other hand, are made to regulate temperature rather than humidity.
Reliable Performance all year:
Most crucial applications, including data centers, server rooms, communications rooms, etc., need a cooling environment available around the clock with precise humidity and temperature control. The Close Control air conditioning unit is designed to run continuously 365 days a year.
Energy Saving: The Close Control Unit provides a selection of compressor types. The purpose of microprocessor control and additional optional features is to optimize energy savings and minimize power usage. This facilitates Quick Return on Investment (ROI).
Critical Space Cooling: Close Control Units provide upflow and downflow options. Additionally, it may be built with optimal airflow in mind, ensuring that cool air reaches every corner of the data center.
Conclusion:
Close Control Units are necessary where exact environmental conditions must be maintained for machinery performance, product quality, operations, and worker comfort and safety.
