Derek Hamilton: Low charge ammonia - the natural replacement for R22

Derek Hamilton from Star Refrigeration draws attention to the current phase out of the HCFC R-22 and its effects on the industrial refrigeration industry while exploring the options available as alternatives, together with the concerns of end users in large commercial or light industrial applications. Hamilton also highlights the advantages of low charge, packaged ammonia and air-cooled condensers by comparing them to R-22 and evaporative condensers respectively; and presents a recent investment in an air cooled ammonia package used to replace an ageing R22 system made by a dairy in Puerto Rico.