Green Box chillers were on display at K 2004

The Sandretto UK partner in cooling and chilling equipment, Green Box, presented a new generation of water chillers: the Eco chiller - at K 2004: this unit provides cold water very efficiently

Sandretto UK's partner in cooling and chilling equipment, Green Box, presented a completely new generation of water chillers: the Eco chiller - at the K 2004 in Dusseldorf, October 20-27.

Sandretto UK automation and ancillaries sales manager Chris Whitlam says that 'the appeal of Green Box in the UK has been steadily rising and is increasingly being included in a number of our recent orders as part of a total factory installations'.

The new series of Green Box machine, adds Whitlam, 'has been designed with the main target of producing cold water with the lowest possible energy consumption - in other words with the highest possible efficiency'.

The Eco line chillers have an extremely high performance, with compressor COP (Coefficient of Performance) which can reach 8.5 or more: this can correspond to a total energy saving of 10 -25 % depending on operating conditions.

The units are built using high quality, technologically advanced components, and are carefully tested with the aim of granting the minimum of electrical consumption during operation.

At present 12 models are available.

Cooling capacity ranges from 35 to 312 kW.

All the units are modular and easily arranged in parallel if larger cooling capacities are required.

More and more frequently, however, it is necessary for users to keep the chillers under continuous control from a remote station all the different components of a cooling system.

The Green Box Supervisor is the solution - a very flexible tool which can be easily upgraded if the cooling installation needs enlarging.

Whitlam says that 'the days of cheap and standard chillers are numbered.

Plastics processors now need to closely monitor their production operations.

Any moulder with a critical process to manage will want to invest in technology such as this that gives automatic monitoring solutions'.

The Green Box Supervisor continuously monitors the status of all the most important parameters of the cooling plant, giving in real time temperatures, impressions, parameter configurations, alarms.

Sensors installed in each unit monitor the values of the different parameters and all the data is collected by a central PC which can continuously supply graphics showing the trends of all recorded values.

The PC stores all historical data, thus allowing the analysis of operating conditions for many weeks and months and of also tracing anomalies that have happened in the past.

The Green Box Supervisor also allows the possibility of changing the operating parameters and of monitoring continuously the effects of the modifications.

Modifications can be made from a local control.

Alternatively and - most importantly for the small business - remote control operations are possible: E-mail, fax messages or SMS messages can be also used to send reports about working conditions and/or alarms.

Different levels of remote access are available and this key facet of the Supervisor operation was demonstrated from the Green Box stand at K 2004.

A complete plant lay-out for easier control of the status of the system can also be supplied as an option.

Also showing at K 2004 was Green Box's new range of Temperature Control Units - ideal for extremely accurate control of the mould operating conditions.

Some applications require extremely high accuracy in the control of the flow, of the pressure and of the temperature of the fluid used in the mould.

The new Green Box units are designed to monitor, to control, to adjust and to maintain constant the parameters of the circulating water during operations.

The following parameters are controlled.

* Inlet and outlet pressures.

* Inlet and outlet temperatures.

* Process flow.

* Delta pressure between inlet and outlet of the mould.

* Delta temperature between inlet and outlet of the mould.

On request the units can be supplied with a colour touch screen, which gives an immediate view of the graphs of the different parameters.

Also on request the units can be supplied with a printer.

This feature can be very interesting for mould makers; thus allowing them to supply, together with their moulds, data on the operating conditions required for granting the mould performances.

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