Criteria for initiating the cleaning of heating, ventilation and air conditioning systems of non-industrial buildings Abstract A ventilation system’s cleanliness affects the quality of the air that it distributes. However, it is difficult for building managers to assess the relevance of having their systems cleaned and to choose among all the proposals from cleaning specialists since no objective method exists for assessing dust accumulation in the systems. The authors worked on developing a method for sampling the dusts in heating, ventilation and air conditioning (HVAC) ducts and for determining a criterion for initiating their cleaning. In the laboratory, they reproduced different dust accumulation levels in a metal duct that simulated HVAC systems, compared a method for sampling surface dust in ducts with those methods mentioned in the literature, compared the digital evaluation method to the visual method, and established application conditions. Each of the methods proved to be practicable by using its corresponding cleaning initiation criterion. However, some criteria need to be validated in future work. All the compared methods are described in the report. Produced Under this Project Scientific Reports Criteria for initiating the cleaning of heating, ventilation and air conditioning systems of non-industrial buildings Research Report: R-525 Simplified Articles Des critères objectifs pour déclencher le nettoyage des systèmes Chauffage, ventilation et conditionnement d'air Volume 24, n0 3 Scientific Publications Cleaning initiation criteria for heating, ventilation and air conditioning (HVAC) system in non industrial buildingsLavoie J., Ali Bahloul, Cloutier Y., Gravel R.Source : in Proceedings of Clima 2007 (June 10-14, 2007 : Helsinki, Finland), vol. 3, p., 2007, p. 273-280Critères de déclenchement pour l’assainissement dans les conduits de ventilationAli Bahloul, Lavoie J.Source : in NADCA 2007 (1-3 octobre, 2007 : Montréal, Canada), 2007Cleaning initiation criteria for heating, ventilation and air conditioning (HVAC) systems in non industrial buildingsLavoie J., Ali Bahloul, Cloutier Y.Source : in Raising Efficiency to New Levels : ASHRAE Annual Conference (June 26-30, 2010 : Albuquerque, USA), 2010Cleaning initiation criteria for heating, ventilation and air conditioning (HVAC) systems in non industrial buildingsLavoie J., Ali Bahloul, Cloutier Y.Source : ASHRAE Transactions, vol. 116, part 2, 2010, p. 13-20 Other Project(s) You May be Interested in Evaluation of Direct Reading Instrument and Filtration Technology Performance to Improve Strategies to Control Workers’ Exposure to Ozone Additional Information Type: Project Number: 0099-4610 Status: Completed Year of completion: 2007 Research Field: Chemical and Biological Hazard Prevention Team: Jacques Lavoie (IRSST)Yves Cloutier (IRSST)Chantal Dion (IRSST)Rodrigue Gravel (IRSST)