Global News and Events

Thermo King Introduces New PIEK-Certified Refrigeration Unit for Quiet Distribution

Brussels, Belgium, 14 November, 2013 - Thermo King, a manufacturer of transport temperature control solutions for a variety of mobile applications and a brand of Ingersoll Rand, breaks new ground in the temperature controlled distribution sector with the launch of the quiet PIEK certified[1] SLXe-300 Whisper Pro trailer unit.


Distribution companies know that reduced sound levels can mean low performance at a high price. In contrast, the Thermo King SLXe Whisper Pro unit offers the best of both worlds: high performance and reduced sound levels.


As a one-piece unit, installation and maintenance costs are minimized. The market-leading fuel economy of the SLXe is retained and its outstanding cooling performance means optimal load protection, whatever the ambient temperature.


The key requirement for transporters operating in an urban environment is that their refrigeration unit should meet strict noise regulations. The SLXe Whisper Pro complies with the most stringent and most recent PIEK requirements by using geo-fencing to automatically switch into low-noise mode when entering a controlled zone. The absence of manual intervention meets the very latest PIEK requirement. This allows users to operate unrestricted schedules, no matter where their route takes them.


Night operation means less traffic congestion, shorter travel times, reduced emissions and reduced fuel costs. And because the SLXe-300 Whisper Pro is a full-on 13.6 meter trailer unit, transporters avoid being forced into using smaller and less economical vehicles for urban deliveries.


“The Thermo King SLXe-300 Whisper Pro meets the need for silent operation, uncompromised performance and low environmental impact,” said Michel Poinsignon, product leader for trailer and rail refrigeration for Thermo King in Europe, the Middle East, India and Africa.


“Thermo King has always taken a holistic view on environmental impact, right through the equipment lifecycle from sourcing to operation and disposal. With the new PIEK compliant diesel trailer unit, Thermo King offers the industry a solution that provides maximum load protection and delivery time flexibility while holding down operating costs.”


To develop such a high performance, PIEK-certified solution, Thermo King engineers built upon the company's 75 year history of technical innovation. They chose a specially designed acoustic package to reduce the creation of sound energy and contain it at the source.


Strategically located noise-absorbent materials and a redesigned engine compartment reduce noise transmission. Even the exhaust system has been specially tuned to minimize sound generation at low engine speeds. These mechanical innovations were married to a piece of electronic wizardry, in the form of a dedicated controller which monitors time and position to switch the unit into low-noise mode only when it is required.


The technological achievement is considerable. Not only does the SLXe Whisper Pro give the operator compliance and flexibility, but the unit also delivers an improvement of approximately 15 percent in fuel efficiency when compared to other models in its market segment.


As part of the SLXe range, the Whisper Pro unit benefits from the same strengths including ease of service, commonality of components, high resale value and the expert 24/7 support of the Thermo King Dealer network.


The operating mode of a unit is determined by an enhanced intelligence controller depending on two parameters, time and location. Local PIEK criteria can be simply programmed on one trailer and then the same parameters can be uploaded to the whole fleet.


For the environmentally conscious operator, the SLXe Whisper Pro offers low environmental impact without compromising on reliability or sound levels. Lower fuel consumption, lower CO2 emissions, lower sound levels and increased component recyclability make it a truly compelling proposition.


Solutrans details


Thermo King will unveil the SLXe Whisper Pro solution on 19-23 November at stand # 173 in Hall 4, at the Solutrans exhibition in Lyon, France. Visitors will be able to learn more about the new PIEK-certified refrigeration unit as well as other truck and trailer solutions from Thermo King.


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Thermo King Celebrates 75 Years


Since 1938, Thermo King has been at the forefront of the transport refrigeration industry providing temperature control systems that enable users throughout the world to lower energy, fuel, and operating costs while providing temperature stability. Celebrating its 75th anniversary this year, Thermo King offers a wide range of temperature control systems for vehicles of all sizes, from small vans to large trailers, as well as airborne and ocean-going containers. In addition Thermo King provides heating, ventilation and air-conditioning equipment for passenger buses and railcars.


About Ingersoll Rand and Thermo King


Ingersoll Rand (NYSE:IR) advances the quality of life by creating and sustaining safe, comfortable and efficient environments. Our people and our family of brands–including Club Car®, Ingersoll Rand®, Schlage®, Thermo King® and Trane® –work together to enhance the quality and comfort of air in homes and buildings, transport and protect food and perishables, secure homes and commercial properties, and increase industrial productivity and efficiency. Thermo King manufactures transport temperature control systems for a variety of mobile applications, including trailers, truck bodies, buses, shipboard containers and railway cars. Ingersoll Rand is a $14 billion global business committed to a world of sustainable progress and enduring results. For more information, visit or


Thermo King Corporation, a business unit of diversified industrial firm Ingersoll Rand Company Limited, was founded in 1938 and manufactures transport temperature control systems for a variety of mobile applications, including trailers, truck bodies, buses, shipboard containers and railway cars. The company operates 10 manufacturing facilities and 17 parts distribution centers worldwide. Sales and service is provided by a global dealer network of 865 independently owned companies in 75 countries.


Joan Schimml, Thermo King, a brand of Ingersoll Rand
Joan Schimml