The results of the PIEK test show that the CryoTech truck range is now the quietest refrigeration system on the world market today which is able to run independently of the vehicle engine (unlike alternator systems) and able to provide the continuous airflow necessary for protection of sensitive fresh produce (unlike systems which inject refrigerant gas into the load space). The CryoTech range uses recycled (second-use) carbon dioxide, liquefied under pressure, released into remote evaporators and ultimately exhausted outside the vehicle.
The PIEK regulation has its origins in the Netherlands, but is fast becoming the accepted European standard for low-noise equipment. It requires a maximum operating noise level of 60dBA to permit night-time deliveries (23.00 – 07.00 hrs). The test measures sound levels at six positions around the vehicle and to achieve the certification none of the measurements may exceed 60dBA. To put this in perspective, the background noise level in a busy office would typically exceed 60dBA.
To recognise the importance of this achievement, Pieter Waldeck, Ambassador of the Netherlands to the Court of St James, formally presented an award to Thermo King on behalf of the Noise Abatement Society at the annual John Connell Ceremony in the House of Commons, London on 5th November 2008.