You can select a Certification Programme from the list below to retrieve its description (scope of the programme, definitions...)


  See certified products

Scope of the programme

This programme applies to hygienic ranges of Air Handling Units. As an option of the Certification programme for Air Handling Units, only an already ECP certified range is eligible for the hygienic option.

Air Handling Unit: A factory made encased assembly or flat-packaged unit that consists of a fan or fans and other necessary equipment to perform one or more of the following functions: circulating, filtration, heating, cooling, heat recovery, humidifying, dehumidifying and mixing of air. The unit should be suitable to be used with ductwork.

Range: A family of Air Handling Units of different sizes grouped under the same designation and using the same selection procedure.

Model Box: Construction envelope built according to specifications presented in manufacturer’s literature, used to establish mechanical, thermal and acoustical performance according to the relevant EN standards.

Sub-range: Part of a range using the same Model Box(es) and grouped under the same designation.

Air leakage factor [l.s-1.m-2]: The air leakage in volume per unit of time, related to the external casing area.

Filter bypass leakage [%]: Air bypass around filter cells as a percentage of rated air volume flow.

IOM: Installation & Operational Manual

IMC: The IMC (Inspection, Maintenance and Cleaning) works comprise the component itself, the relating guides or frames, the casing ranges directly upstream and downstream of the component and any instruments installed inside the chamber of the relating component.
Programme Classification

The hygienic aspect of the AHU is certified based on a 3 levels classification, each level declaring an AHU suitable for different application:
  • Level 1: Offices, commercial buildings, schools, hotels
  • Level 2: Hospitals
  • Level 3: Pharmaceutical, food processes, white rooms

The previous list is not exhaustive and must be used as a reference only.

Final customer/user who has complete and detailed knowledge of the building application shall decide which Hygienic rating level is appropriate.

Certified characteristics

Services characteristics:

The following services characteristics are certified :
  1. Manufacturing
  2. Maintenance
  3. Quality Management System
  4. IOM (Installation and Operational Manual)
  5. Shipment

Hygienic characteristics:

The following hygienic characteristics are certified :
  1. Materials
  2. Casing performance
  3. Components arrangement and performances (filters, coils, heat recovery systems, fans, humidifiers, dehumidifiers and silencers)
General Reference documents

Certification Manual 14th (December 2016)
Reference documents

OM-5-2016 - rev1

RS-6C011-2017 Hygienic AHU