Industry Directory 2016 | Page 185

AIRAH Annual leak rates by equipment class/application Equipment class/application Annual leak rates (% p.a.) Lower Typical Upper Centralised system (i.e. supermarket rack) 5% Maintained = 12.5%, otherwise 15% 23% Chillers (i.e. cold storage facilities, process refrigeration) 5% 7% 16% Condensing units (i.e. Walk-in coolrooms) 5% Maintained = 12.5%, otherwise 15% 23% Self-contained refrigeration system — 2% — Road transport 15% 20% 23% Marine 20% 30% 40% Chillers 5% 7% 9% Chillers (HCFC-123) — 2% — Roof top packaged systems 4% 5% 9% Split systems (single and multi) 3% 4% 9% Window/wall units and portable — 2% — Refrigeration applications Air conditioning applications 185