In-row units

CoolTeg Plus DF

Energy saving

Inter-cabinet cooling unit based on an innovative two-liquid cooling technology combining water and compressor cooling.

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Product introduction

CoolTeg Plus DF is an inter-cabinet air conditioning unit based on an innovative two-liquid cooling technology combining water and compressor cooling. As such, the unit contains a unique, highly efficient heat exchanger that enables the use of free cooling. The key functional elements of the system are integrated in the indoor unit, and heat removal from the data center is realized by a hydraulic circuit. This circuit is connected to two branches within the unit – a water exchanger and a water-cooled condenser. The water exchanger is used mainly in winter at low outdoor temperatures, and the water-cooled condenser is used mainly in the summer months, when it is necessary to activate the compressor circuit. The unit operates in three different modes – free-cooling mode, compressor mode (direct vapor) and mixed (hybrid) mode, when both branches of the unit are actively involved, i.e., both the water and the compressor part.

CoolTeg Plus DF40 – this unique cooling unit with a width of mere 40 cm and a maximum power of up to 24.5 kW can be connected to a hydraulic circuit (water-glycol) with a pump and an external dry cooler. A great advantage lies in the possibility to connect a single unit or multiple units to one hydraulic circuit, or to connect a group of units to one hydraulic circuit and another group to another hydraulic circuit, or to connect all units (or groups of units) to any number of hydraulic circuits - there are countless options to save acquisition costs or to increase redundancy of the data center cooling system.

Compared to a water-based cooling system (CW unit) with chillers, the advantage of the CoolTeg plus DF system lies mainly in the redundancy at the indoor unit.

Compared to a compressor-based cooling system, the advantage of CoolTeg plus DF lies mainly in the integration of free cooling and considerable savings in operating costs (i.e., electricity costs) in the winter months.

Thanks to the extraordinarily wide range of options for connecting the units and hydraulic circuits, the CoolTeg Plus DF system is suitable for data centers of all sizes.

Key benefits of the product

Integrated free-cooling
The most efficient two-fluid exchanger in its category
Low operating costs and redundancy in a single system

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Key features

Product line name	CoolTeg Plus DF
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Technical information	Free-Cooling integrated in the indoor unit The most efficient two-fluid exchanger in its class Unrivaled energy efficiency and low operating costs Just 14% of the year in the compressor mode only Variable design and size of indoor and outdoor units High variability of the entire system Environmentally friendly due to very low coolant volume Main functional parts integrated in a unit only 40 cm wide Highly efficient BLDC compressor located inside the unit Low vibrations Low pressure and high pressure safety switches Easy expandability of an already integrated system Wide outdoor temperature range
Note	The indoor CoolTeg Plus DF40 unit is compatible with any variable airflow dry cooler. The outdoor unit model should be selected based on the desired temperature of the glycol-water mixture and the typical maximum ambient temperature. For the correct design of the outdoor unit, use the CoolTool selection software or contact our team of experts.