Coolmation, the UK’s exclusive distributor for Rhoss spa, has introduced the latest R134A  Z Power series of air cooled chillers. Available in cooling capacities from 300kW to 700kW, this is the latest in the series of high technology products developed by Rhoss. These will not only meet the existing ECA criteria, but will also meet the higher thresholds which are being intimated by the Carbon Trust.

This new Z Power range from Rhoss is the result of a continuing partnership between them and the highly regarded University of Udine which brings together the research and development teams from both organizations. This arrangement has provided Rhoss with the opportunity to create a new breed of chillers which combines energy efficient heat exchange technology with an effective control strategy.  High points of the Z Power HE chillers include:

 

Screw compressors:

A new generation of semi-hermetic screw compressors, specifically developed for R134A refrigerant.

 

Plate or shell and tube evaporators

Both types are designed to accomplish ultra high levels of heat exchange which, size for size has led to a more compact device requiring a smaller refrigerant charge. The low pressure drops on both the refrigerant and water circuits further enhance the energy efficiency.

 

Condensers with special fin technology:

The air cooled condensing section, coil and fans, has been optimised by redesigning the tube geometry and fin formation. The result is more efficient heat transfer and lower fan motor power input.

 

Electronic expansion valves:

An electronic expansion valve achieves precise control of refrigerant mass flow and allows the system to operate at lower condensing pressures resulting in significant reductions in compressor power input.

 

 Microprocessor control:

The controller provides management of each of the compressors capacity steps, and condenser fan step or speed control to give smooth control of variations in load and ambient temperatures down to -5ºC or -10ºC

 

Guaranteed performance:

Eurovent accreditation of the range gives guaranteed performance, and is carried out in the new Rhoss Laboratory, one of only two in Europe, capable of operating chillers at their full capacity up to 1500kW and itself certified by Eurovent.

 

Rhoss is one of Italy’s largest manufacturers of water chillers, ranging in capacities from 3kW to 1500kW, and also produces a comprehensive selection of associated cooling and airside equipment. All Rhoss spa products comply fully with the latest European legislation and standards. All Coolmation equipment available to UK customers is designed for high reliability and manufactured to internationally recognised quality standards. With offices in Lancashire, Leicestershire, Bedfordshire, Bristol and a Head Office in Ringwood, Hampshire, Coolmation operates nationwide in chiller sales and installation, service, hire and technical support. For further information call freephone 0800 731 5466.