CLP Air Handling are able to provide AHU’s to be in compliance with Ecodesign Directive 1253/2014/EG which is applicable to all residential and non-residential ventilation units. Generally, the legislation forces the industry to provide units with lower velocity, lower specific fan power, increased energy efficiency all resulting in lower overall energy consumption.
CLP Air Handling will work with our customers and advise them of the latest guidelines and how it affects us the manufacturer and them as the installer in respect of the physical size and design of the AHU. Typically in virtually all cases the cross sectional area of an AHU in the year 2014 to one selected today will be larger.
We work with our clients to provide them with the required information they require and assist them with selecting equipment that is suitable.
A summary of the directive is as follows:
All AHU’s shall be equipped with a variable speed drive (inverter) or electronically commuted (EC) fan motor. We will advise the customer that a suitable controller is required and provide the option to either provide one themselves or include one as part of our package.
All bidirectional supply and extract AHU’s should have heat recovery.
Heat recovery systems (thermal wheels and plate heat exchangers) should have a minimum thermal efficiency of 73%. Plate heat exchangers should be fitted with a by-pass facility. For run-around coil systems 68% is the required efficiency. When a run around system is deployed a suitable pump must be used to ensure the system runs to the correct efficiency.
The specific fan power should not exceed a stated level which is determined based on the AHU application / components and whether the system is for a new or existing building.
BD EN 13053: Ventilation for buildings. Rating & performance for AHU’s, components and sections.
BS EN 1886: Ventilation for buildings. AHU mechanical performance (air leakage).
EN ISO 16890: Air filters
BS EN 13779: Ventilation for non-residential buildings
EN308: Heat exchanger test procedures