CoolTeg Plus DX

Product introduction

In addition to fans and control components, DX indoor units include a highly efficient evaporator for R410A refrigerant. Each indoor unit must be connected to a Mitsubishi outdoor compressor unit via a refrigerant pipe. This “split” system is controlled autonomously. Multiple units can be combined into groups under single control. Mitsubishi outdoor units are equipped with a frequency-controlled compressor, an electronic expansion valve and other high-end components. CONTEG offers three power types – 7 kW; 12 kW, 18 kW and 24 kW with continuous regulation. In our new CoolTeg Plus units, we leverage state-of-the-art technology and precise regulation based on our experience from data centers around the world. As the technology of fans, exchangers, compressors and control elements continues to evolve, we also innovate our products to ensure their best performance for our customers.

The units are equipped with power-efficient EC fans and an obliquely placed highly efficient heat exchanger. Temperature and humidity are measured in both the cold and warm zones, and the area for air intake and conditioned air exhaust has been maximized to optimize air distribution. The main differences can be found in the unit controller. We use a brand new controller with advanced CONTEG software and a new 4.3"" graphic color touch screen that matches the 21st-century air conditioning technology. One display can serve up to 16 air conditioning units in the data room with a maximum cable length of 500 m. The system communicates via the TCP/IP protocol, leverages an integrated web server and can be remotely controlled and supervised from a PC over the internet. CoolTeg Plus DX units are designed to be connected to selected state-of-the-art Mitsubishi Electric outdoor compressor units. CoolTeg Plus are the most modern units from the precision cooling family suitable for efficient cooling of server rooms and data centers of all types.

The refrigerant system is limited by the distance between the indoor and outdoor units (see detailed technical documents) and their height difference. Cooling operation is guaranteed in the outdoor temperature range from -15 to +46 °C. CoolTeg Plus DX with an outdoor unit is a highly efficient system with an environmentally friendly coolant, which is especially suitable for server rooms with a total output of up to 100 kW. Where a greater cooling capacity is needed, it would be more economical to use a water-based system. The cooling capacity of each unit is individually adjusted according to the immediate requirements by the power of the compressor, the opening of the electronic expansion valve and the speed of the fans of the outdoor and indoor units. When it is necessary to reduce the relative humidity of the room to a preset level, the unit automatically responds by reducing the air flow and increasing the cooling capacity. CoolTeg Plus DX units provide maximum sensible cooling capacity in relation to the latent cooling capacity thanks to an advanced humidity management logic. Year-round energy consumption compared to other air conditioning units is therefore significantly lower.

Key benefits of the product

• There is no water in the data center
• Independent systems of indoor and outdoor units ensure 100% redundancy
• Easy installation and scalable capacity
• R410A coolant
• Continuous regulation of cooling power from 30 to 100%