Energy & Power, Heating, Cooling & Drying

Rittal TopTherm Inverter Chiller – Improved Precision and Efficiency

Rittal 31/07/2013

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With the focus on flexibility, operation and security Rittal’s complete range of Top Therm chillers now has a reduced depth of 605mm, increasing the number of enclosures to which it may be bayed.

The condenser fan, relocated to the roof of the unit, provides an optimised thermodynamic performance and an incorporated condenser protection grill minimisies the risk of damage during transit and installaltion.

The temperature of the chilled water supplied for enclosure cooling is not as critical as that used in process cooling. Spindle cooling demands the cooling medium is supplied within a tolerance of ± 0.5 K, to guarantee the necessary accuracy in processing, otherwise the thermal expansion of the components will cause inaccuracies in the machined workpiece.

Chillers are generally governed by a two-point control system, i.e. turning the compressor on and off as the temperature of the cooling water either rises above or falls below the maximum and minimum permissible limits.

However, it is not possible to control within the small hysteresis required for machine cooling using this method as the frequent switching would adversely affect component life.

Rittal’s new TopTherm Inverter Chiller incorporates a variable speed compressor powered by a brushless DC motor, the speed of which is controlled by an inverter, to deliver the cooling medium at a temperature with the required accuracy.

This technology, in conjunction with other optimised components in the refrigerant circuit, an electronically controlled expansion valve and energy efficient electronically commutated (EC) fans, has culminated in a range of chillers with a capacity range of 2-19.5 kW, a chilled water temperature tolerance as low as ± 0.2 K and an impressively high energy efficiency ratio (EER) of up to 3.3.

Tel: 01709 704000
e-mail: information@rittal.co.uk
Rittal Limited
Braithwell Way
Hellaby Industrial Estate
Hellaby
Rotherham S66 8QY
www.rittal.co.uk

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Rittal Ltd

01709 704000
information@rittal.co.uk
http://www.rittal.co.uk
Braithwell Way, Hellaby Industrial Estate, Hellaby, Rotherham, South Yorkshire, S66 8QY GB

About us

Since its foundation in 1961, Rittal has continuously evolved into the world"s leading systems provider for enclosures, power distribution, climate control, IT infrastructure and software & services.

Today, "Rittal – The System." offers you a perfectly coordinated system platform. It unites innovative productions, pioneering engineering solutions and global service to accommodate the most diverse requirements. It caters to a whole host of industries, from machinery and plant engineering, to the automotive industry, through to information technology.All from a single source, all in top quality.

That is what "Rittal – The System. Faster – better – worldwide." is all about.

A workforce of 10,000 manufactures and develops "Rittal – The System." on your behalf. Ensuring you stay on track for success. Tap into synergy potential with our sister company Eplan, the leading manufacturer of software for cross-disciplinary engineering solutions.We never lose sight of our responsibility to the environment and society.

Where we supply to

Europe, Africa, Asia, Australia, South America, North America

Industries we supply to

Automation, Chemicals, Consultants, Components Electronics, Energy and Power, Food and Beverage, Glass Ceramics Cement, Metals and Minerals, OEM, Paper and Pulp, Pharmaceutical Cosmetics Toiletries, Plastics and Rubber, Recycling, Textiles, Tobacco, Water and Wastewater

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