Rittal Cooling Units Now With New Output Class

Rittal’s Blue e+ cooling units are acknowledged as the most efficient of their kind on the market.  Independent tests have shown they are – incredibly – 75 per cent more energy efficient than previous cooling solutions.

On the back of this success, the company is now extending the Blue e+ range.  The new unit to be launched in the first quarter of 2018 will provide an output class as low as 1.6 kW, extending the existing range of between 2 to 6kW. 

Blue e+ units will be on the Rittal stand (D720) at Drives and Controls 2018.

“This new unit is an important milestone for the Blue e+ cooling unit range and is designed to increase the flexibility of our offering and meet a growing need for compact cooling units for efficient enclosure climate control,” explains Karl Lycett, Rittal’s product manager for climate.

The Blue e+ cooling units feature inbuilt, innovative, patented hybrid technology. This combines an inverter driven cooling circuit with an independent heat pipe to provide passive cooling.  This has a significant role in delivering the unit’s exceptionally high efficiency ratings. 

Blue e+1kw

The inverter driven cooling circuit of the new Blue e+ range is also rated as highly energy efficient.  Frequency converters precisly adjust the speed of the DC motors controlling the fans and compressor via voltage control, which allows the cooling output to be tailored to the current environmental requirements and deliver demand based cooling. This results in a significant reduction of energy consumption over conventional solutions.

Precise, demand based cooling ensures minimal thermal stress for components within enclosures, so constant temperature fluctuations (such as in the conventional two-point control systems) can be considered as a thing of the past. This not only increases the service life of the cooling units and enclosure components, it also means higher process reliability.

All the units in the new range can be operated in all standard grids worldwide thanks to the innovative multi-voltage capability. Permissible input voltage ranges from 110 V (single-phase) to 480 V (three-phase) in conjunction with a mains frequency of 50 Hz or 60 Hz.

Blue e+ units also excel in terms of connectivity, safety and handling. The units feature a graphical touchscreen control panel which displays all key information at a glance. System messages appear as plain text and are multi-lingual while standardised communication interfaces ensure easy integration into a production plant’s control systems.

Meanwhile, the newly released IoT interface means Blue e+ units can link to customer-owned monitoring, energy management and/or superordinate systems via OPC-UA, Profinet, SNMP, Modbus TCP and CANopen, enabling predictive maintenance, data analytics and more.

In addition to the CULUS listing, Rittal cooling units and fan-and-filter units also now have a UL listing in the new “FTTA” (Environmental-rated Accessories for Enclosures) category. “The FTTA approval, means the type rating/IP protection class of the climate-controlled enclosure is certified by UL. It’s a common question on user groups, and I’m delighted we can offer an authoritative response,” says Karl.

Further information at www.rittal.co.uk and www.friedhelm-loh-group.com or on twitter @rittal_ltd.     

Blue e+ units will be on show along with other solutions from Rittal – The System, at Drives and Controls (the NEC Birmingham, 10-12 April 2018), on Stand D720.

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Rittal Improves Cooling Communications in the Cloud

Industry 4.0 scenarios, such as predictive maintenance, are based on the provision of data, as well as integrated, networked communication.  

But for this to happen, IoT-compatible devices obviously have to be equipped with the necessary technology interfaces.

Rittal is driving this capability forward forward for its cooling units and chillers in Industry 4.0 applications. The company’s new IoT interface now means there can be continuous communication from the sensor to the cloud, plus the interface also supports connections to super-ordinate monitoring or energy management systems.

A great deal of information is generated by modern enclosure climate control solutions. But up to now, it has only been practical to record operating hours and the current temperature inside the enclosure.  

However, modern devices like the new cooling units and chillers in the Rittal Blue e+ range, mean a multitude of values and other information can be measured and recorded. This includes the temperatures inside and outside the enclosure, the evaporator and condenser temperatures and, where appropriate, measurements from additional sensors located inside the enclosure.  In addition, instead of a simple operating hours meter, the run-times of the compressor and internal and external fan can be recorded separately.  It also provides system messages, data for capacity utilisation and the current parametrisation information.

cloud local

Creating added value from data

In order to realise the value from access to all this data, the information must be made available to superordinate systems. So, to this end, Rittal has developed a new IoT interface, which turns the cooling units and chillers in the Blue e+ range into IoT-compatible devices.

The IoT interface can be mounted either on a top hat rail, or directly on the cooling unit, or chiller. The protocols supported are OPC-UA, Profinet, SNMP, Modbus and CANopen. The number of protocols supported makes it is possible to connect to superordinate monitoring or energy management systems in virtually every case.

The data from the cooling units and chillers can then be accessed within these systems at all times, and it is also possible to set parameters and configure settings via the IoT interface.

Cloud connectivity

The new IoT interfaces make it possible to integrate the climate control solutions into IoT applications, paving the way for new applications and smart service solutions. One example would be optimising the maintenance and servicing of climate control units, which in turn lowers operating costs.

Another important application is energy data management.  With all this data available at all times, energy efficiency levels are increased, helping to reduce costs.

Further information at www.rittal.co.uk and www.friedhelm-loh-group.com or on twitter @rittal_ltd.     

Hygienic Design Enclosures and Accessories

Production Line with Food Prep areasBy Christian Westwood, Rittal’s Industry Manager for Infrastructure

The 2017 Industrial Strategy document from the UK Government “Building Britain fit for the future”1 states,

The world will need 60 per cent more food by 2050 to allow us to feed 9 billion people, while demand for water is expected to rise by 20 per cent in the agriculture sector alone. For this to be possible, the way we produce our food needs to be significantly more efficient and sustainable.”

Manufacturers in the Food and Beverage sector are faced with the challenge of improving production efficiency not only to reduce their costs but also to ensure a growing global population survives and prospers.

So, why do I think that electrical enclosures and cooling equipment, a seemingly small part of any production process, can make a significant contribution to maximising efficiency? Because they have a major role to play in limiting planned and unplanned production downtime.

Downtime, when production is halted, represents the “worst case scenario” for plant operators. These dead periods reduce output, add to costs, and impact sales. However, in hygiene-critical production situations, longer downtimes are unavoidable because of the amount of cleaning required. In meat-processing plants, for example, machines must be at a standstill up to 40 per cent of the time, to allow for essential cleaning work.  

Hygienic Design

Typically, industrial wall-mounted enclosures and standard enclosures for machines and plant don’t support a need for fast but effective cleaning. Their basic design, as well as their various “nooks and crannies”, make cleaning more difficult, meaning they can be dirt traps and thus a breeding ground for germs.

Hygienic design stands for one principle above all: provisions for the simple and thorough cleaning of everything that could come into contact with foods – from the machine to its enclosure. It is particularly important to remove the aforementioned “dead spaces” or undercuts of any kind, as well as joints without radius, because such points are particularly prone to product residue accumulations, which in turn represent an ideal substrate for microbial contamination. For the same reason, surfaces with recesses such as the uncovered threads of screw connections, or screw heads with internal hexagons (Allen screws) or Torx screws are not allowed. Corners and joints must be smooth, gap-less and cleanly rounded.

To ensure that sprayed water is able to run off the surfaces of housings and enclosures in spray and wet zones, appropriately angled drain slopes must be provided.

The specially designed Rittal Hygienic Design (HD) enclosures meet these tough hygienic requirements in full. In addition to terminal boxes and compact enclosures in common sizes, which are available ex-stock, Rittal also has a comprehensive product portfolio that ranges from enclosures to operating housings for safely accommodating electrical equipment.

The entire range has been meticulously designed to meet the requirements, regulations and guidelines of the food and beverage industry. All the external parts are made entirely of stainless steel, which means a high resistance to chemicals, cleaning agents and disinfectants.

The enclosures meet the IP 66 protection category in accordance with IEC 60 529, as well as the NEMA 4X protection class, which means they can be cleaned with a high-pressure cleaner without any impact on their internal contents.

The door seals are made of silicone instead of polyurethane (PU foam), which is more resistant to all kinds of detergents, and dyed blue, which makes it identifiable as a “foreign object” in the event of any mechanical damage. The easily replaceable (but securely inserted) one-piece gaskets, which are safely fitted on the insides of the doors and panels to the outside, guarantee an unbroken seal.

Where Cooling is Required

But the enclosure is only part of the solution. It can prevent damage to electrical equipment from dust and water ingress, but can do little to combat high temperatures. Whether the enclosure is located in a hot environment, contains equipment that produces heat, or both, a cooling solution appropriate for the application decreases the risk of components tripping or even failing, once again reducing costly interruptions to production.

The most hygienic cooling method for enclosure climate control is an air/water heat exchanger. If cooling water system is not available, then the water for individual heat exchangers can be provided via chillers which can be installed remote from the open process.

For smaller systems, the one-off procurement costs for heat exchangers, chillers and piping are generally slightly higher than the costs of classic wall-mounted cooling units. But a heat exchanger is the system of choice for hygienic environments and could quickly pay back the investment through reduced maintenance requirements and lower energy costs.

In addition to air/water heat exchangers for use with stainless steel enclosures, Rittal offers special HD versions in the 650- and 1250-watt output classes. Their design simplifies cleaning procedures and contributes to food safety.

Conclusion

It may surprise some to learn just how much of an impact a poor choice of enclosure can have on production and output.

But in manufacturing, it’s sometimes the small details that make all the difference.

www.rittal.co.uk

World first – The Blue e+ cooling unit – range extended…

Off the back of Blue e+ success, we are happy to announce that Rittal has extended its Blue e+ existing range from 2kW to 6kW to include a smaller unit which provides an output class of 1.6 kW. This new unit is an important milestone for the Blue e+ range and is designed to meet the growing need in industry for compact but efficient cooling units for enclosure climate control. The new unit encompasses all of the existing innovative Blue e+ features and is available for order immediately.

Blue e+1kw

The e+ principle:

  • Efficiency – 75% energy saved due to speed-regulated components and heat pipe technology
  • Versatility – Suitable for international use due to multi-voltage support
  • Safety – Longer service life of the components inside the enclosure and the cooling unit due to component-friendly cooling
  • User-friendliness – Intuitive operation due to touch display and intelligent interfaces

You can view the full range here at our dedicated microsite ->>  https://www.rittal.com/de_de/blue_e/plus/

If you would like further information or to book a FREE cooling inspection then please do not hesitate contact us

T – 01709 704105

E – information@rittla.co.uk